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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 6714. Отображено 100.
12-01-2012 дата публикации

ADVERTISEMENT OF QUALITY OF SERVICE (QoS) INFORMATION FOR NETWORK MANAGEMENT TRAFFIC IN A WIRELESS LOCAL AREA NETWORK (WLAN)

Номер: US20120008605A2
Автор: Michael Montemurro, Stephen McCann
Принадлежит: Individual

An access point advertises a management frame quality of service (MFQ) policy that defines an access category used for transmitting a first type of management frame. Each mobile station associated with the access point is to prioritize transmission of management frames according to the MFQ policy advertised by the access point, unless a policy configuration request for the mobile station to prioritize transmission of management frames according to a different MFQ policy has been accepted.

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Номер записи: 1
14-06-2012 дата публикации

Medium Reservation Techniques for Multi-User Transmissions

Номер: US20120147804A1
Автор: Ahmadreza Hedayat, Brian D. Hart
Принадлежит: Cisco Technology Inc

Techniques are provided for a multi-user reservation sequence used when transmitting a multi-user transmission in a wireless network. At a wireless access point device configured to operate in a wireless network, a multi-user request-to-send packet is transmitted as part of a multi-user reservation sequence prior to a multi-user transmission from the wireless access point device to a plurality of wireless client devices that are the intended recipients for the multi-user transmission. The multi-user request-to-send packet comprises duration information and address information configured to address at least some of the plurality of wireless client devices. Clear-to-send packets transmitted from two or more of the plurality of wireless client devices in response to the multi-user request-to-send packet are received at the wireless access point device. Each clear-to-send packet comprises identical content. In some scenarios, the multi-user request-to-send packet is preceded by a single-user request-to-send packet directed to a designated wireless client device.

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Номер записи: 2
16-08-2012 дата публикации

Method for generating and transmitting frame in a wireless local area network and apparatus for supporting the same

Номер: US20120207140A1
Автор: Heejung Yu, Hun Sik Kang, Il Gu LEE, Min Ho CHEONG, Sok Kyu Lee
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A channel sounding method in a wireless local area network (WLAN) system is provided. The method, performed by a transmitter, includes transmitting a null data packet announcement (NDPA) frame to a receiver to initiate a channel sounding procedure; transmitting a null data packet (NDP) to the receiver and receiving a feedback frame. The feedback frame includes a plurality of segment frames and a channel feedback report. The channel feedback report is split into a plurality of feedback segments. Each of the plurality of feedback segments is respectively included in each of the plurality of segment frames. The each of the plurality of segment frames includes a first-segment subfield indicating whether the each of the plurality of feedback segment included is a first segment and a remaining-segment subfield indicating the number of remaining feedback segments.

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Номер записи: 3
11-10-2012 дата публикации

Method and device for transmission opportunity truncation

Номер: US20120257612A1
Автор: Yongho Seok
Принадлежит: Individual

A method and device for communicating in a contention-based communication network. According to an embodiment, the method includes obtaining, by a transmitter, an access to a channel during a transmission opportunity (TXOP) and transmitting, by the transmitter, a contention free (CF)-End frame to truncate the TXOP if the transmitter has no more data that the transmitter can send that fits within the TXOP, wherein the CF-End frame includes a duration field indicating a time required to complete the truncation of the TXOP.

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Номер записи: 4
21-03-2013 дата публикации

EFFICIENT GROUP ID MANAGEMENT FOR WIRELESS LOCAL AREA NETWORKS (WLANs)

Номер: US20130070748A1
Автор: Abraham Santosh Paul, Sampath Hemanth, Tandra Rahul, Vermani Sameer, Wentink Maarten
Принадлежит: QUALCOMM INCORPORATED

Certain aspects of the present disclosure provide techniques and apparatus for efficiently managing groups of stations (STAs) receiving simultaneous transmissions in a multiuser multiple-input multiple-output (MU-MIMO) scheme. One example method generally includes; for a first apparatus in a number of groups of apparatuses, allocating a first spatial stream position for each of at least one first group in the number of the groups; and transmitting a first unicast message to the first apparatus, wherein the first unicast message comprises an indication of the allocated spatial stream position for each of the at least one first group and, for each group in the number of the groups, an indication of a membership status, in the group, of the first apparatus. 1. A method for wireless communications , comprising:in a number of groups of apparatuses, determining one or more first groups to which a first apparatus belongs;allocating, for the first apparatus, a first spatial stream position associated with each of the one or more first groups;generating a first message based on the allocation and the determination; and an indication of the allocated first spatial stream position associated with each of the one or more first groups; and', 'an indication of whether the first apparatus is a member of each group in the number of groups., 'transmitting the first message to the first apparatus, wherein the first message comprises2. The method of claim 1 , wherein transmitting the first message comprises transmitting the first message during association with the first apparatus.3. The method of claim 1 , wherein the first message comprises a field indicating a number of group identification (groupID) bits and wherein the number of groups of apparatuses is based on the number of the groupID bits.4. The method of claim 3 , wherein the field indicates that the number of groupID bits is y such that the number of groups of apparatuses is 2.5. The method of claim 1 , wherein the ...

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Номер записи: 5
28-03-2013 дата публикации

METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM

Номер: US20130077613A1
Автор: GRANDHI Sudheer A., Levy Joseph S., Sammour Mohammed
Принадлежит: INTERDIGITAL TECHNOLOGY CORPORATION

A method and apparatus that applies medium access control (MAC) transmission opportunity (TXOP) protection for multiple mode operation in a WLAN system. In particular, MAC mechanisms are defined to support multiple mode CTS frames, and multiple mode CF-End frames sent by the AP, each in a format appropriate for the corresponding mode which may also apply to a single mode. MAC mechanisms permit truncation of TXOP duration for releasing the unused portion of the TXOP when no further data for transmission is available. Release of unused protected TXOP is possible for both protected AP transmissions and STA transmissions. 1. A method for use in an access point (AP) , the method comprising:receiving a request-to-send (RTS) frame from a station (STA), wherein the RTS frame indicates a request for a transmit opportunity (TXOP);transmitting, in response to the RTS frame, an indication of a TXOP, wherein the indication of a TXOP is a clear-to-send (CTS) frame;receiving packet data from the STA during the TXOP;receiving, on a condition that the STA does not have further packet data to transmit, an indication of truncation of the TXOP including a first space-time block code (STBC) contention free (CF)-End frame or a first non-STBC CF-End frame; andtransmitting a second STBC CF-End frame and a second non-STBC CF-End frame.2. The method of claim 1 , wherein the receiving the indication of truncation of the TXOP occurs on a condition that sufficient TXOP duration is remaining.3. The method of claim 2 , wherein the remaining TXOP duration is sufficient on a condition that the remaining TXOP duration is greater than a sum of a CF-End frame duration claim 2 , an STBC CF-End frame duration claim 2 , a non-STBC CF-End frame duration claim 2 , and two short interframe spacing (SIFS) durations.4. The method of claim 1 , wherein the indication of truncation of the TXOP indicates a network allocation vector (NAV) reset to the AP.5. The method of claim 1 , wherein each of the second STBC ...

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Номер записи: 6
04-04-2013 дата публикации

NATIVE WI-FI ARCHITECTURE FOR 802.11 NETWORKS

Номер: US20130083698A1
Автор: Abhishek Abhishek, Ayyagari Arun, Ganugapati Krishna, Ruan Jiandong, Shen Hui
Принадлежит: MICROSOFT CORPORATION

A software based wireless infrastructure system is provided. The system has a driver that communicates with the network stack and a network interface card (NIC), a station server in communication with the station driver and an 802.1X supplicant or an 802.1X authenticator. Each NIC provides station and/or access point functionality support. The driver drops packets that have been received if the packet has not been authenticated and associated. Packets that have been fragmented or encrypted are unfragmented and decrypted. An association manager is used in conjunction with a configuration table manager to associate stations and access points via management packets. A manager receives 802.1X data packets from the packet processor and sends them up to a station server that communicates with user mode applications and an 802.1X supplicant or an 802.1X authenticator that are used to authenticate and deauthenticate stations and access points. APIs are provided to enable communication between the components. 1. A method comprising implementing , by a computing device , wireless networking functionality in a station or access point that is configured for interacting with a network interface card (“NIC”) , the station or access point , as opposed to the NIC , further configured for providing:authentication services;wired equivalent privacy (“WEP”) functionality;packet fragmentation functionality;packet defragmentation functionality; andassociation and reassociation functionality.2. The method of where the WEP functionality comprises:a WEP encryption procedure;a WEP decryption procedure; andsecurity service management functionality.3. The method of claim 1 , the providing further comprising media access control (“MAC”) service data unit (“MSDU”) support.4. The method of claim 1 , the providing further comprising multiple outstanding MSDU transmission restrictions.5. The method of where the association and reassociation functionality comprises providing an association state.6. ...

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Номер записи: 7
11-04-2013 дата публикации

HIGH DATA THROUGHPUT WIRELESS LOCAL AREA NETWORK RECEIVER

Номер: US20130088992A1
Автор: Hansen Christopher J., Moorti Rajendra Tushar, Trachewsky Jason A.
Принадлежит: BROADCOM CORPORATION

A method for receiving a frame in a high data throughput wireless local area network begins by receiving a preamble of the frame via a channel in accordance with a default receiver filter mask. The processing continues by validating the preamble. The processing continues by, when the preamble is validated, interpreting the preamble to determine a high data throughput channel configuration. The processing continues by reconfiguring the default receiver filter mask in accordance with the high data throughput channel configuration to produce a reconfigured receiver filter mask. The processing continues by receiving a data segment of the frame in accordance with the reconfigured receiver filter mask. 1. A method for receiving a frame in a high data throughput wireless local area network , the method comprises:prior to receiving the frame, configuring a receiver filter mask according to a first channel width of a plurality of channel widths to produce a first configured receiver filter mask;receiving a first preamble segment of the frame via a channel, wherein the first preamble segment includes a first training sequence, a second training sequence, and a high throughput indication;performing a first validation test on the first training sequence and a second validation test on the second training sequence;when the first validation test and the second validation test are successful, interpreting the high throughput indication; [{'sup': 'M', 'a second channel width of the plurality of channel widths, wherein the second channel width has 2subcarriers received via a single antenna and is greater in width than the first channel width;'}, {'sup': 'K', 'a third channel width of the plurality of channel widths, wherein the third channel has 2subcarriers received via the single antenna and is less in width than the first channel width;'}, {'sup': 'N', 'the first channel width having 2subcarriers received via multiple antennas;'}, {'sup': 'M', 'the second channel width having ...

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Номер записи: 8
18-04-2013 дата публикации

TRANSMISSION CONTROL IN A TELECOMMUNICATION NETWORK

Номер: US20130094412A1
Автор: Brown Patrick, Galtier Jérôme
Принадлежит: FRANCE TELECOM

The invention relates to a transmission control method implemented by a station having at least one data frame to be transmitted via a wireless telecommunication network. In one aspect, the method comprises, at each selection round from a maximum number of selection rounds: a step of obtaining a value representative of either an authorization to transmit said frame, or of a prohibition to transmit said frame; and, when the value is representative of an authorization for transmission, transmitting an information signal in the network so as to indicate, to the other stations, that the station has obtained a value representative of an authorization for transmission. The transmission of the information signal is at least partially carried out during the transmission of a data frame in the network. 1. A transmission control method able to be implemented by a first station having at least one data frame to transmit via a wireless telecommunication network , the method including , at each selection round (k) of a maximum number of selection rounds: 'transmitting an information signal into said network, in order to indicate to the other stations that said first station has obtained a value representing an authorization to transmit;', 'obtaining a value (r(k)) representative either of an authorization to transmit or of a prohibition to transmit said frame; and when said value represents an authorization to transmitwherein the transmission of said information signal is carried out at least partly during the transmission of a data frame into said network.2. The control method as claimed in claim 1 , wherein said signal is transmitted using a frequency band that is sufficiently far away from that used for the transmission of said data frames in order that said first station can transmit the information element while being capable of receiving a data frame.3. The control method as claimed in claim 1 , wherein said information element is transmitted using the frequency band used ...

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Номер записи: 9
25-04-2013 дата публикации

COLLISION AVOIDANCE SYSTEMS AND METHODS

Номер: US20130100889A1
Автор: Wentink Menzo
Принадлежит: Intellectual Ventures I LLC

Disclosed herein are various embodiments of collision avoidance systems and methods. One method embodiment, among others, comprises a client sending an end of transmission (EOT) request to an access point (AP), and responsive to the EOT request, the AP responding with an EOT frame. 1. A method , comprising:sending an end of transmission (EOT) request to an access point (AP) from a client wireless device prior to an end of an existing transmit opportunity (TXOP) between the client wireless device and the AP, wherein the EOT request truncates the TXOP early, before a network allocation vector clears around the client; andreceiving an EOT frame at the client wireless device from the AP responsive to transmitting the EOT request, a receiver address field set to a broadcast address and that is configured to separately truncate the TXOP early, before the network allocation vector clears around the AP prior to the end of the TXOP.2. The method of claim 1 , wherein the EOT request comprises a contention free end (CF-end) frame.3. The method of claim 2 , wherein the CF-end frame comprises a basic service set identification (BSSID) field indicating a BSSID associated with the AP.4. The method of claim 1 , wherein the EOT request is sent at a non-basic rate claim 1 , wherein the non-basic rate is a rate the client wireless device knows to be decodable by both the client and the AP but that the client wireless device does not know to be decodable by all other nodes in a same basic service set (BSS) as the client wireless device and the AP.5. The method of claim 2 , wherein the AP transmitting the EOT frame comprises the AP transmitting a second CF-end frame.6. The method of claim 5 , wherein the second CF-end frame comprises a basic service set identification (BSSID) field indicating a BSSID associated with the AP.7. The method of claim 6 , wherein the second CF-end frame is sent by the AP at a basic rate claim 6 , the basic rate being a rate decodable by all nodes in a same ...

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Номер записи: 10
25-04-2013 дата публикации

Intelligent Backhaul Radio

Номер: US20130100897A1
Автор: NEGUS Kevin J.
Принадлежит: CBF NETWORKS, INC.

A intelligent backhaul radio is disclosed that is compact, light and low power for street level mounting, operates at 100 Mb/s or higher at ranges of 300 m or longer in obstructed LOS conditions with low latencies of 5 ms or less, can support PTP and PMP topologies, uses radio spectrum resources efficiently and does not require precise physical antenna alignment. 1. An intelligent backhaul radio comprising:one or more demodulator cores, wherein each demodulator core demodulates one or more receive symbol streams to produce a respective receive data interface stream,a plurality of receive radio frequency (RF) chains to convert from a plurality of receive RF signals to a plurality of respective receive chain output signals;a frequency selective receive path channel multiplexer, interposed between the one or more demodulator cores and the plurality of receive RF chains, to produce the one or more receive symbol streams provided to the one or more demodulator cores from the plurality of receive chain output signals; a plurality of directive gain antenna elements; and', 'one or more selectable RF connections that selectively couple certain of the plurality of directive gain antenna elements to certain of the plurality of receive RF chains, wherein the number of directive gain antenna elements that can be selectively coupled to receive RF chains exceeds the number of receive RF chains that can accept receive RF signals from the one or more selectable RF connections;, 'an antenna array comprisinga radio resource controller, wherein the radio resource controller sets or causes to be set the specific selective couplings between the certain of the plurality of directive gain antenna elements and the certain of the plurality of receive RF chains.2. The intelligent backhaul radio of claim 1 , wherein the radio resource controller further sets or causes to be set a number of active receive RF chains.3. The intelligent backhaul radio of claim 1 , wherein the set of receive RF ...

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Номер записи: 11
02-05-2013 дата публикации

WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD

Номер: US20130107700A1
Автор: OGATA Hideki
Принадлежит: NEC Corporation

A wireless communication apparatus of the present invention that uses an adaptive modulation radio scheme, includes: two-system transmission paths of an active system transmission path and an auxiliary system transmission path; a line information acquiring unit that acquires line information indicating line states of the active system transmission path and the auxiliary system transmission path; and a signal processing unit that determines whether or not a fault occurs in the active system transmission path and the auxiliary system transmission path, based on the line information acquired by the line information acquiring unit. The signal processing unit performs a setting so as to perform wireless communication using the two-system transmission paths of the active system transmission path and the auxiliary system transmission path, in a case of determining that a fault does not occur in the active system transmission path and the auxiliary system transmission path. The signal processing unit performs a setting so as to perform wireless communication using only the transmission path in which a fault does not occur among the active system transmission path and the auxiliary system transmission path, in a case of determining that a fault occurs in either one of the active system transmission path and the auxiliary system transmission path. 1. A wireless communication apparatus that uses an adaptive modulation radio scheme , the apparatus comprising:two-system transmission paths of an active system transmission path and an auxiliary system transmission path;a line information acquiring unit that acquires line information indicating line states of the active system transmission path and the auxiliary system transmission path; anda signal processing unit that determines whether or not a fault occurs in the active system transmission path and the auxiliary system transmission path, based on the line information acquired by the line information acquiring unit,the signal ...

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Номер записи: 12
09-05-2013 дата публикации

Method Applied to Receiver of Wireless Network for Frequency Offset and Associated Apparatus

Номер: US20130114453A1
Автор: Ching-Hsiang Chuang, Shao-Ping Hung, Tai-Lai Tung, Tien-Hsin Ho
Принадлежит: MStar Semiconductor Inc Taiwan

A method applied to a receiver of a wireless network in response to frequency offset is provided. Upon receiving a preamble, a reference symbol is provided according to a long training symbol in the preamble, and a frequency domain transform is performed on the reference symbol to generate a corresponding reference spectrum. A correlation calculation is performed on the reference spectrum and a predetermined spectrum to provide a first frequency offset. The preamble is carried by a plurality of different sub-carrier frequencies, with a frequency difference between neighboring sub-carrier frequencies being equal to a sub-carrier frequency space. The first frequency offset is an integral multiple of the sub-carrier frequency space.

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Номер записи: 13
16-05-2013 дата публикации

ACCESS POINT SCHEDULED PEER-TO-PEER COMMUNICATION

Номер: US20130121227A1
Автор: Abraham Santosh Paul, Sampath Hemanth
Принадлежит: QUALCOMM INCORPORATED

Certain aspects of the present disclosure relate to a technique for scheduling multiple peer-to-peer communications in a wireless network using an access point (AP). The existing power management framework for AP-based communications is utilized to achieve AP-based scheduling of peer-to-peer communications. 1. A method for wireless communications , comprising:receiving, at a first apparatus, a control message, the control message indicating a time period for communications;identifying a second apparatus assigned the same time period for communications; andcommunicating with the second apparatus during the time period.2. The method of claim 1 , wherein the control message comprises type fields for the first and second apparatuses indicating the first and second apparatuses should communicate using a Direct Link Setup (DLS) connection.3. The method of claim 1 , wherein the control message comprises a sequence of bits indicating a wireless channel used for the communications.4. The method of claim 1 , wherein the control message comprises a power management message.5. The method of claim 4 , wherein the power management message comprises the IEEE 802.11n Power Save Multi Poll (PSMP) message.6. The method of claim 4 , wherein identifying the second apparatus comprises:scanning through the power management message to find a field associated with the first apparatus; andscanning through the power management message to match a first value in the field indicating time of data transmission from the first apparatus with a first value in another field indicating start time for data reception at the second apparatus, and to match a second value in the field indicating time duration for data transmission from the first apparatus with a second value in the other field indicating time duration for data reception at the second apparatus, wherein the other field is associated with the second apparatus.7. The method of claim 6 , further comprising:scanning through the power ...

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Номер записи: 14
16-05-2013 дата публикации

WIRELESS ACCESS POINT ARRAY

Номер: US20130121328A1
Автор: Conley Michael R., de la Garrigue Michael, Gates Dirk Ion, Laity Ian, Sauter Kurt, SMITH STEVE
Принадлежит: Xirrus, Inc.

A system of at least one wireless access device in a local area network (LAN) having a plurality of transceivers. Each transceiver has a directional antenna positioned in a substantially circular array to communicate signals with a plurality of stations in a corresponding sector. Each sector defines a portion of a coverage area surrounding the wireless access device. The wireless access device has a network interface to a data network, and an array controller to control communication of data between the stations and the transceivers, and between the transceivers and the network interface. The array controller is configured to modify channel assignments so as to minimize channel interference dynamically. 1. A system for providing access to data network services comprising: a plurality of transceivers, each transceiver having a directional antenna, each directional antenna positioned in a substantially circular array to communicate signals with a plurality of stations in a corresponding sector, each sector defining a portion of a coverage area surrounding the wireless access device;', assign a predetermined channel to each of the plurality of transceivers on which the transceiver communicates with stations in the corresponding sector, where the predetermined channel is unique relative to the channels assigned to the other transceivers;', 'modify the predetermined channel assignment to each of the plurality of transceivers to dynamically optimize performance; and', 'control communication of data between the stations and the transceivers, and between the transceivers and the network interface; and, 'an array controller in signal communication with each of the plurality of transceivers, the array controller configured to], 'at least one wireless access device comprisinga wired network connected to the at least one wireless access device, the wired network having an interface to at least one data network service; where the at least one wireless access device communicates ...

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Номер записи: 15
16-05-2013 дата публикации

Method And System For Achieving Enhanced Quality And Higher Throughput For Collocated IEEE 802.11B/G And Bluetooth Devices In Coexistent Operation

Номер: US20130121329A1
Автор: Desai Prasanna, Ibrahim Brima
Принадлежит: BROADCOM CORPORATION

Disclosed are various embodiments for providing wireless communication. A Bluetooth (BT) communication protocol and a Wireless Local Area Network (WLAN) communication protocol are enabled in a station. A WLAN fragmentation threshold utilized by the WLAN communication protocol is modified based on a WLAN modulation rate and an HV3 frame duration that is utilized by the BT communication protocol. 1. A method for providing wireless communication , the method comprising:enabling a Bluetooth (BT) communication protocol and a Wireless Local Area Network (WLAN) communication protocol in a station; andmodifying a WLAN fragmentation threshold utilized by the WLAN communication protocol based on a WLAN modulation rate and an HV3 frame duration utilized by the BT communication protocol.2. The method according to claim 1 , further comprising generating a coexistence signal to enable the BT communication protocol and the WLAN communication protocol.3. The method according to claim 1 , further comprising modifying the WLAN modulation rate.4. The method according to claim 1 , wherein enabling the BT communication protocol and the WLAN communication protocol is initiated in response to a coexistence mode being initiated.5. The method according to claim 1 , wherein modifying the WLAN fragmentation threshold is initiated in response to a coexistence mode being initiated.6. The method according to further comprising:disabling a coexistence mode for the station; anddisabling the BT communication protocol in response to the coexistence mode being disabled.7. The method according to further comprising:disabling a coexistence mode for the station; anddisabling the WLAN communication protocol in response to the coexistence mode being disabled.8. A system for providing wireless communication claim 1 , the system comprising:a station that comprises a Bluetooth (BT) radio that handles a Bluetooth (BT) communication protocol and a Wireless Local Area Network (WLAN) radio that handles a WLAN ...

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Номер записи: 16
23-05-2013 дата публикации

Method and System for Providing Reduced Bandwidth Acquisition Latency

Номер: US20130128825A1
Автор: Timothy Gallagher
Принадлежит: Individual

Methods and systems for providing reduced bandwidth acquisition latency may comprise communicating a reservation request for bandwidth allocation for devices operating under a wired network protocol, where the reservation request may be sent by wired network devices via a wireless network protocol over a wireless network. Bandwidth may be allocated in the wired network for the requesting devices by a network controller. Data may be communicated with the requesting devices via the wired network. The wired network communication protocol may comprise a multimedia over cable alliance (MoCA) standard. The wireless protocol may comprise an IEEE 802.11x standard, a Bluetooth standard, and/or any non-public network protocol. The communication of the reservation request via the wireless protocol may decrease a latency of the wired network. A medium access plan (MAP) may be generated by the network controller based on the reservation request and may comprise a bandwidth allocation for the requesting devices.

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Номер записи: 17
30-05-2013 дата публикации

METHOD AND APPARATUS OF PEER LINK SETTING, AND METHOD AND APPARATUS OF CHANNEL SWITCHING, IN WIRELESS MESH NETWORK

Номер: US20130136016A1
Автор: Lee Jae Seung, Lee Sok Kyu
Принадлежит: Electronics and Telecommunications Research Institute

A method and apparatus for configuring mesh peer link and a method and apparatus for switching channel in wireless mesh network are provided. A method of configuring a mesh peer link in a wireless mesh network includes a first mesh station transmitting a mesh peering open frame to a second mesh station, and the first mesh station receiving a mesh peering confirm frame from the second mesh station in response to the mesh peering open frame, wherein the first mesh station and the second mesh station support a very high throughput (VHT), and wherein the mesh peering open frame and the mesh peering confirm frame comprise a VHT capability information element. 1. A method of configuring a mesh peer link in a wireless mesh network , the method comprising:a first mesh station transmitting a mesh peering open frame to a second mesh station; andthe first mesh station receiving a mesh peering confirm frame from the second mesh station in response to the mesh peering open frame,wherein the first mesh station and the second mesh station support a very high throughput (VHT), andwherein the mesh peering open frame and the mesh peering confirm frame comprise a VHT capability information element.2. The method of claim 1 , wherein the mesh peering open frame and the mesh peering confirm frame further comprise a VHT operation information element.3. The method of claim 1 , wherein the first mesh station performs passive scanning or active scanning in order to discover the second mesh station before transmitting the mesh peering open frame.4. The method of claim 1 , wherein the VHT capability information element comprises at least one of an information element indicating a maximum MAC protocol data unit (MPDU) length claim 1 , an information element indicating a channel bandwidth supported by a station claim 1 , an information element indicating whether an encoded packet is received by a low density parity check (LDPC) claim 1 , information elements indicating whether short guard ...

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Номер записи: 18
06-06-2013 дата публикации

WIRELESS NETWORK AND ACCESS POINT FOR A WIRELESS NETWORK

Номер: US20130142186A1
Автор: Bry Charles, Rohfleisch Bernhard
Принадлежит: LANTIQ DEUTSCHLAND GMBH

Embodiments related to Wireless Networks and access points for a Wireless Network are described and depicted. 1. An apparatus , comprising: first data to a station associated with a first basic service set, the first basic service set configured to support a mix of contemporary wireless standards and legacy wireless standards,', 'and second data to a station associated with a second basic service set, the second basic service set configured to support only contemporary wireless standards and to operate at a greater data throughput than the first basic service set;, 'a transceiver to simultaneously transceive'}a first MAC entity to process the first data and a second MAC entity to process the second data; andone or more first RF chains, the one or more first RF chains being coupled to the first MAC entity and one or more second RF chains, the one or more second RF chains being coupled to the second MAC entity.2. The apparatus according to claim 1 , further comprising a first MAC entity to process the first data and a second MAC entity to process the second data.3. The apparatus according to claim 1 , further comprising an entity coupled to the one or more first RF chains claim 1 , the entity being controllable to process in a first operation mode only the first data according to MIMO and/or STBC and/or beamforming techniques and to process in a second operation mode the first and the second data according to MIMO and/or STBC and/or beamforming techniques.4. The apparatus according to claim 1 , further comprising a controller entity to control the data traffic to the first and second MAC entities claim 1 , wherein the controller entity is configured to assign a first station to a first basic service set and a second station to a second basic service set.5. The apparatus according to claim 4 , wherein the controller entity is further configured to reassign the second station to the first basic service set and to control the transceiver to transceive the second data.6. ...

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Номер записи: 19
13-06-2013 дата публикации

ENHANCED DISCOVERY PROCEDURES IN PEER-TO-PEER WIRELESS LOCAL AREA NETWORKS (WLANS)

Номер: US20130148642A1
Автор: Abraham Santosh Paul, Agrawal Avneesh, IV Vincent Knowles, Jones, Li Junyi, Sampath Hemanth
Принадлежит: QUALCOMM INCORPORATED

Certain aspects of the present disclosure generally provide methods and apparatus for enhanced discovery procedures in peer-to-peer (P2P) wireless local area networks (WLANs). With these procedures, discovery duration may be decreased, battery power consumption may be reduced during discovery, provided services may be ascertained during the device discovery phase without performing a separate service discovery phase, and/or the discovery range may be extended in an effort to discover a greater number of devices. 1. A first apparatus for wireless communications , comprising: wake up the first apparatus at a particular time for a discovery period; and', 'discover one or more second apparatuses during the discovery period, wherein the discovery period is common among the first and second apparatuses; and, 'a processing system configured toa transceiver configured to communicate directly with at least one discovered second apparatus independent of using a central node.2. The first apparatus of claim 1 , wherein the processing system is configured to discover the second apparatuses via only one or only two channels.3. The first apparatus of claim 2 , wherein the only one or only two channels comprise a single channel common among the first and second apparatuses and designated for discovery.4. The first apparatus of claim 3 , wherein the common channel has a bandwidth in an unlicensed spectrum.5. The first apparatus of claim 3 , wherein the transceiver is configured to:transmit a probe request via the common channel during the discovery period; andreceive a response to the probe request from one of the second apparatuses via the common channel during the discovery period.6. The first apparatus of claim 1 , wherein the transceiver is configured to receive a beacon from one of the second apparatuses during the discovery period and wherein the processing system is configured to determine a device type for the one of the second apparatuses based on the beacon.7. The first ...

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Номер записи: 20
13-06-2013 дата публикации

ENHANCED DISCOVERY PROCEDURES IN PEER-TO-PEER WIRELESS LOCAL AREA NETWORKS (WLANS)

Номер: US20130148643A1
Автор: Abraham Santosh Paul, Agrawal Avneesh, IV Vincent Knowles, Jones, Li Junyi, Sampath Hemanth
Принадлежит: QUALCOMM INCORPORATED

Certain aspects of the present disclosure generally provide methods and apparatus for enhanced discovery procedures in peer-to-peer (P2P) wireless local area networks (WLANs). With these procedures, discovery duration may be decreased, battery power consumption may be reduced during discovery, provided services may be ascertained during the device discovery phase without performing a separate service discovery phase, and/or the discovery range may be extended in an effort to discover a greater number of devices. 1. An apparatus for wireless communications , comprising: discover one or more first apparatuses in a first range using a first procedure; and', 'discover one or more second apparatuses in a second range greater than the first range using a second procedure different from the first procedure; and, 'a processing system configured toa transceiver configured to communicate directly with at least one of the discovered first or second apparatuses independent of using a central node.2. The apparatus of claim 1 , wherein the first procedure comprises discovering the one or more first apparatuses via a single channel common among the first apparatuses and designated for discovery.3. The apparatus of claim 1 , wherein the second procedure comprises a Layer 3 (L3) discovery procedure.4. The apparatus of claim 1 , wherein the second procedure comprises using at least one of eXtended Range (XR) or Super Long Range (SLR).5. The apparatus of claim 1 , wherein the second procedure comprises:associating with another apparatus having a backhaul link to a network; anddiscovering the second apparatuses via the backhaul link.6. The apparatus of claim 1 , wherein the transceiver is configured to communicate with the at least one of the discovered first or second apparatuses via a peer-to-peer (P2P) protocol.7. A method for wireless communications claim 1 , comprising:discovering one or more first apparatuses in a first range using a first procedure;discovering one or more second ...

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Номер записи: 21
13-06-2013 дата публикации

System and Method for Preambles in a Wireless Communications Network

Номер: US20130148644A1
Автор: Aboul-Magd Osama, Au Kwok Shum, Li Yunbo, Suh Junghoon, Sun Sheng
Принадлежит: Futurewei Technologies, Inc.

A method for transmitting a frame includes generating an omni portion of the frame, the omni portion including a non-beamformed long training field and a signal field, the non-beamformed long training field including channel estimation information used to decode the signal field, the non-beamformed long training field configured to be transmitted through one of multiple antennas and multiple streams. The method also includes generating a multi-stream portion of the frame, the multi-stream portion including a data field and a multi-stream long training field, the multi-stream long training field including station-specific decoding information for station-specific data in the data field. The method further includes applying a beamforming indicator to the signal field of the omni portion, and transmitting the frame. 1. A method for transmitting a frame , the method comprises:generating, by an access point, an omni portion of the frame, the omni portion including a non-beamformed long training field and a signal field, the non-beamformed long training field including channel estimation information used to decode the signal field, the non-beamformed long training field configured to be transmitted through one of multiple antennas and multiple streams;generating, by the access point, a multi-stream portion of the frame, the multi-stream portion including a data field and a multi-stream long training field, the multi-stream long training field including station-specific decoding information for station-specific data in the data field;applying, by the access point, a beamforming indicator to the signal field of the omni portion; andtransmitting, by the access point, the frame.2. The method of claim 1 , wherein the multi-stream portion is located after the omni portion.3. The method of claim 1 , wherein applying the beamforming indicator comprises setting a status indicator in the signal field.4. The method of claim 3 , wherein the status indicator is set to a first value if ...

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Номер записи: 22
20-06-2013 дата публикации

LINK ADAPTATION IN WIRELESS NETWORKS

Номер: US20130155848A1
Автор: Baldo Nicola, Maguolo Federico, Merlin Simone, Siorpaes David, Zanella Andrea, Zorzi Michele
Принадлежит: STMICROELECTRONICS S.R.L.

An embodiment of a system for physical link adaptation in a wireless communication network such as e.g., a WLAN, selectively varies the physical mode of operation of the transmission channels serving the mobile stations in the network. The system includes an estimation module to evaluate transmission losses due to collisions as well as transmission losses due to channel errors over the transmission channel, and an adaptation module to select the physical mode of operation of the transmission channel as a function of the transmission losses due to collisions and to channel errors as evaluated by the estimation module. 144-. (canceled)45. A method , comprising:determining a collision-failure probability that a first unit will not receive first data transmitted over a wireless channel due to an overlapping transmission of second data over the channel;determining a channel-failure probability that the first unit will not receive the first data due to a characteristic of the channel; andselecting in response to the collision- and channel-failure probabilities a value for a data-transmission parameter for transmitting data to the first unit.46. The method of wherein determining the collision-failure probability comprises determining the collision-failure probability that the first unit will not receive the first data transmitted by a second unit due to an overlapping transmission of the second data by a third unit.47. The method of wherein determining the collision-failure probability comprises determining the collision-failure probability from a value generated by a medium-access-control counter.48. The method of wherein determining the collision-failure probability comprises determining the collision-failure probability from a change in a value generated by a medium-access-control counter.49. The method of wherein determining the channel-failure probability comprises determining the channel-failure probability from the collision-failure probability.50. The method of ...

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Номер записи: 23
20-06-2013 дата публикации

WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD

Номер: US20130155955A1
Автор: Adachi Tomoko, Matsuo Ryoko, Nabetani Toshihisa, Tandai Tomoya
Принадлежит: KABUSHKI KAISHA TOSHIBA

There is provided a wireless communication apparatus performing access control which starts transmission after a backoff time passes since an available state of a channel is detected through carrier sense, the backoff time being set based on a random value selected within a contention window width, including: a remaining time calculating unit calculating a remaining time untill a request delay time time-outs after data is generated and a setting unit setting the contention window width according to the remaining time calculated by the remaining time calculating unit. 1. A wireless communication apparatus performing access control which starts transmission after a backoff time passes since an available state of a channel is detected through carrier sense , the backoff time being set based on a random value selected within a contention window width , comprising:a remaining time calculating unit configured to calculate a remaining time untill a request delay time time-outs after data is generated; anda setting unit configured to set the contention window width according to the remaining time calculated by the remaining time calculating unit.2. The apparatus according to claim 1 , wherein if the remaining time is a first remaining time claim 1 , the setting unit sets a first contention window width as the contention window width claim 1 , and if the remaining time is a second remaining time claim 1 , the setting unit sets a second contention window width as the contention window width claim 1 , the second remaining time being longer than the first remaining time and the first contention window width being smaller than the second contention window width.3. The apparatus according to claim 1 ,wherein the random value is generated using a probability density function of the random value,wherein an expectation value of the probability density function is set according to the remaining time calculated by the remaining time calculating unit, andwherein if the remaining time ...

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Номер записи: 24
20-06-2013 дата публикации

Digital Surveillance

Номер: US20130156022A1
Автор: 8ajpay Paritosh, RAHMAN Moshiur
Принадлежит: AT&T MOBILITY II LLC

A method includes establishing a first communication path from an access point to a service assurance platform via a first network. The access point is configured to provide a wireless local area network. The method includes establishing a second communication path from the access point to the service assurance platform via a mobile device coupled to a second network. The second communication path is distinct from the first communication path. The method includes initiating transmission of a message from the access point to the service assurance platform via the mobile device. The message is associated with an issue detected by a device coupled to the wireless local area network. 1. A method comprising:establishing a first communication path from an access point to a service assurance platform via a first network, wherein the access point is configured to provide a wireless local area network;establishing a second communication path from the access point to the service assurance platform via a mobile device coupled to a second network, wherein the second communication path is distinct from the first communication path; andinitiating transmission of a message from the access point to the service assurance platform via the mobile device, wherein the message is associated with an issue detected by a device coupled to the wireless local area network.2. The method of claim 1 , wherein the issue is associated with at least one of packet loss claim 1 , packet jitter claim 1 , packet delay claim 1 , network connectivity claim 1 , a fault claim 1 , and packet latency.3. The method of claim 2 , wherein the device is the access point.4. The method of claim 2 , wherein the device is coupled to the wireless local area network via the access point and wherein the device transmits the message to the access point via the wireless local area network.5. The method of claim 4 , wherein the device is one of a computer claim 4 , a television claim 4 , a digital video recorder claim 4 , ...

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Номер записи: 25
27-06-2013 дата публикации

SYSTEM AND METHOD FOR CONFIGURATION OF NETWORK-CAPABLE APPLIANCES

Номер: US20130163469A1
Автор: Hayes Patrick H., Negron Eric
Принадлежит: UNIVERSAL ELECTRONICS INC.

A controlling device is used to configure a target device for wireless network communications through use of a setup wizard. The setup wizard is used to obtain information required to perform communications on a wireless network via a wireless network router and a digital representation of the information obtained through use of the setup wizard is provided to the target device via use of the controlling device. The target device will use the digital representation of the information to configure itself for wireless network communications. 1. A method for using a controlling device , adapted to transmit commands to a target device via a communication link , to configure the target device for wireless network communications , comprising:generating via use of a setup wizard data representative of network configuration information and controlling device configuration information;using the data representative of the controlling device configuration information to configure the controlling device to communicate commands to the target device via the communication link; andusing the communication link to transfer from the controlling device to the target device the data representative of the network configuration information whereupon the target device will use the data representative of the network configuration information to configure itself for association with a wireless local area network.2. The method as recited in claim 1 , wherein the communication link comprises an infrared communication link between the controlling device and the target device.3. The method as recited in claim 1 , wherein the communication link comprises a radio frequency communication link between the controlling device and the target device.4. The method as recited in claim 1 , wherein the data representative of the network configuration information comprises data representative of at least a network name.5. The method as recited in claim 1 , wherein the data representative of the network ...

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Номер записи: 26
27-06-2013 дата публикации

Contention based channel occupying method in wireless network using a plurality of channels

Номер: US20130163575A1
Автор: Byung Jang Jeong, Gwang Zeen KO, Jin Suk PAK, Jung Sun Um, Sang Won Kim, Sung Jin Yoo
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Disclosed is a contention based channel occupying method in a wireless network using a plurality of channels, including: acquiring, by terminals that are incapable of transmitting a data frame through primary contention, occupation channel information from a terminal that transmits the data frame through the primary contention; verifying, by the terminals, an occupiable channel based on the occupation channel information; and performing, by the terminals, secondary contention in the occupiable channel.

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Номер записи: 27
04-07-2013 дата публикации

WIRELESS COMMUNICATION SYSTEM PROVIDED IN AIRCRAFT FOR COMMUNICATING USING PLURAL WIRELESS CHANNELS

Номер: US20130170448A1
Автор: HIGASHIDA Masaaki
Принадлежит: Panasonic Corporation

In a wireless communication system including a plurality of wireless stations provided in a structure having a radio wave shield arranged at a fixed position, at least one of two wireless stations using an identical wireless channel and two wireless stations using wireless channels adjacent to each other are allocated on both sides of the radio wave shield, respectively. In this case, the structure is an aircraft, and the two wireless stations are allocated on different aisles of the aircraft, respectively. In addition, the two wireless stations are allocated to be apart from each other in a longitudinal direction of the aircraft. 19-. (canceled)10. A wireless communication system comprising a plurality of wireless stations provided in an aircraft having a radio wave shield arranged at a fixed position ,wherein two wireless stations using wireless channels adjacent to each other are allocated on both sides of the radio wave shield at different positions sandwiching a seat group at a center of an airframe of the aircraft, respectively, andwherein the two wireless stations using wireless channels adjacent to each other are allocated to be apart from each other in a longitudinal direction of the aircraft, such that the two wireless stations using wireless channels adjacent to each other do not face each other.11. The wireless communication system as claimed in claim 10 ,wherein the two wireless stations using the wireless channels adjacent to each other are allocated to put a wireless station using a wireless channel belonging to a wireless channel group different from the wireless channel group of the wireless channels adjacent to each other, between the two wireless stations using the wireless channels adjacent to each other.12. The wireless communication system as claimed in claim 10 , wherein each of the wireless stations includes a radiation pattern having a main beam in a direction substantially parallel to a width direction of the aircraft.13. A wireless channel ...

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Номер записи: 28
11-07-2013 дата публикации

METHODS AND APPARATUS FOR FACILITATING CHANNEL ACCESS IN A COMMUNICATION SYSTEM

Номер: US20130176856A1
Автор: Li Junyi, Richardson Thomas J., Subramanian Sundar, Wang Ying, Wu Xinzhou
Принадлежит: QUALCOMM INCORPORATED

A transmission initiation interval timing structure is used in combination with a lower layer timing structure, e.g., physical layer timing structure. A device selects a subset of packet transmission initiation intervals and then limits initiation of packet transmission to those intervals thereby reducing the potential for collisions. Packet transmission may occur outside the initiation interval in which the transmission is initiated. In some embodiments, packet transmission length is intentionally limited to sizes which can be transmitted in a fraction of the amount of time the physical layer allows a single device to continuously transmit, e.g., in an amount of time which is equal to or less than the duration of a packet transmission initiation interval. This increases the probability that multiple devices will be able to successfully transmit small packets at short intervals on a regular basis even when carrier sensing techniques are used. 1. A method of operating a communications device to transmit packets , the method comprising:storing information defining a plurality of transmission initiation intervals, said transmission initiation intervals corresponding to a recurring broadcast interval including multiple packet transmission opportunities;monitoring for use of transmission resources during at least a portion of said recurring broadcast interval;selecting a subset of transmission initiation intervals corresponding to a portion of said recurring broadcast interval as a function of signals detected on said transmission resources during said monitoring; andrestricting initiation of packet transmission to transmission initiation intervals associated with said communications device, initiation of packet transmission triggering an attempt to transmit a packet, said attempt to transmit including a channel sensing operation.2. The method of claim 1 , wherein said recurring broadcast interval is a recurring time period in a timing structure used to control wireless ...

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Номер записи: 29
11-07-2013 дата публикации

System And Method To Communicate Targeted Information

Номер: US20130177003A1
Автор: Imes Kevin R., White Russell W.
Принадлежит:

A method for targeted advertising is disclosed. The method includes accessing at least one piece of demographic information associated with a user of a portable device, selecting an advertisement to be delivered to the user based at least in part on the demographic information, and initiating communication of a version of the advertisement configured for presentation at the portable device. 1. A system for enjoying advanced media content , comprising:an automobile configured to communicatively couple with a wireless portable media device;a bus line at least partially routed behind a console of the automobile, the bus line having a first terminal end communicatively coupled to a media system of the automobile;a non-circular physical interface attached at a second terminal end of the bus line and located such that the non-circular physical interface is accessible to an occupant of the automobile and facilitates a coupling of the wireless portable media device to the bus line;the non-circular physical interface comprising at least a first conductive element and a second conductive element, wherein the first conductive element is operable to communicate data from the wireless portable media device to the bus line and the second conductive element is operable to communicate a recharging power from the automobile to the wireless portable media device to facilitate a recharging of a battery within the wireless portable media device;a local area wireless communication module affixed to the automobile, the local area wireless communication module operable to utilize an asynchronous channel of a localized communications signaling network to receive a streaming delivery of audio information output from the wireless portable media device;a processor affixed to the automobile and communicatively coupled to the local area wireless communication module;a memory system; anda set of instructions stored in the memory system that are operable when executed by the processor to pair the ...

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Номер записи: 30
11-07-2013 дата публикации

Method and Apparatus of Transmitting a White Space Map Information in a Wireless Local Area Network System

Номер: US20130177007A1
Автор: Kim Eunsun, LEE Jihyun, Seok Yongho
Принадлежит: LG ELECTRONICS INC.

A method of transmitting a White Space Map information in a wireless local area network system (WLAN) is disclosed. A method of transmitting a white space map information from a first station to a second station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN) comprises transmitting, from the first station, one of a beacon frame, a probe response frame and a white space map announcement frame comprising a white space map (WSM) element comprising information for first available channels, which are available for the unlicensed device, to the second station, wherein the WSM element comprises a device type field indicating which device type the list of the fist available channels is for. 1. A method of transmitting a white space map information from a first station to a second station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN) , the method comprising:transmitting, from the first station, one of a beacon frame, a probe response frame and a white space map announcement frame comprising a white space map (WSM) element comprising information for first available channels, which are available for the unlicensed device, to the second station,wherein the WSM element comprises a device type field indicating which device type the list of the first available channels is for.2. The method of claim 1 , wherein the WSM element further comprises a channel number field and a maximum transmission power level field claim 1 , wherein the channel number field indicates the first available channels and the maximum transmission power level field indicates maximum allowed transmission power of the first available channels.3. The method of claim 1 , the step of transmitting comprising:transmitting a common WSM element comprising information for second available channels, which are available for ...

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Номер записи: 31
18-07-2013 дата публикации

INFORMATION COLLECTION SYSTEM, TERMINAL AND SINK NODE USING WIRELESS MULTIHOP NETWORK, AND COMMUNICATION METHOD FOR THE SAME

Номер: US20130182621A1
Автор: Yagyu Tomohiko
Принадлежит: NEC Corporation

In a wireless multihop network, collision between a routing control message and an information collection message is avoided, and information collection is completed within a predetermined time. A terminal includes: a transmission period control unit that calculates transmittable periods of a routing control message and an information collection message per hop, based on a hop count from the sink node and the number of terminals per hop, calculate a collision period during which the routing control message collides with the information collection message, based on both of the calculated transmittable periods, and recalculates the transmittable period of the routing control message so as to transmit the routing control message while avoiding the calculated collision period; a routing control unit that creates and transmits the routing control message within the transmittable period of the routing control message according to a hop count of the terminal; and an information transmission unit that creates and transmits the information collection message within the transmittable period of the information collection message according to a hop count of the terminal. 1. A terminal of a system that performs periodic information collection in a wireless multihop network ,the terminal comprising:a transmission period control unit that, based on a hop count from a sink node constituting the wireless multihop network and the number of terminals at each hop, calculates a transmittable period of a routing control message per hop so as to establish a path toward the sink node and a transmittable period of an information collection message per hop so as to transmit collected information toward the sink node, calculate a collision period during which the routing control message collides with the information collection message, based on both of the calculated transmittable periods, and recalculates the transmittable period of the routing control message so as to transmit the routing ...

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Номер записи: 32
18-07-2013 дата публикации

Scheduling Transmission of Traffic Treated Less Preferentially Despite Timing Requirements

Номер: US20130182650A1
Автор: Michael Peter Montemurro, Mohammed Nawaf Smadi, Vytautas Robertas Kezys
Принадлежит: Research in Motion Ltd

A source device has a wireless communication interface. Through the wireless communication interface, the source device establishes a communication session over a wireless medium with a sink device and determines a maximum capacity of a buffer at the sink device for receipt of audio samples to be transmitted in packets from the source device to the sink device in an asynchronous connectionless link over the wireless medium. Scheduling access to the wireless medium by the wireless communication interface for transmission of audio samples on the link takes into account the maximum capacity of the buffer.

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Номер записи: 33
18-07-2013 дата публикации

METHOD AND APPARATUS FOR ESTABLISHING WIRELESS LOCAL AREA NETWORK LINK BETWEEN PORTABLE TERMINALS

Номер: US20130182695A1
Автор: HAHM Seong-il, JUNG Jae-Hoon, Kim Hyeong-Seok, Kim Jae-Hwan, KIM Young-ri
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method of connecting a plurality of portable terminal over a wireless local area network (WLAN), the method including: a user selecting at least one contact from a contact list displayed on a screen of a first portable terminal, transmitting, from the first portable terminal to an external server over a cellular network, connection information necessary for establishing a WLAN link to the first portable terminal; pushing the connection information from the external server to a second portable terminal corresponding to the selected contact; a user pressing a connection authentication button on a selection menu displayed on the second portable terminal, and establishing the WLAN link to the first portable terminal from the second portable terminal by using the connection information. 1. A method for a first portable terminal to communicate with a second portable terminal , the method comprising:displaying a contact list on a screen of the first portable terminal;the first portable terminal receiving a user input indicating a selection of at least one contact from the contact list;the first portable terminal transmitting, over a mobile communication network to the second portable terminal, connection information necessary for the second portable terminal to establish a wireless local area network (WLAN) link with the first portable terminal;the first portable terminal receiving a WLAN connection request from the second portable terminal through a WLAN interface; andthe first portable terminal establishing the WLAN link to the second portable terminal in response to the connection request.2. The method of claim 1 , wherein the connection information comprises a service set identifier of the WLAN claim 1 , a channel number claim 1 , and a security key.3. The method of claim 1 , further comprising: determining mode information corresponding to one of an ad hoc mode and an infrastructure mode claim 1 ,wherein the connection information comprises the determined mode ...

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Номер записи: 34
18-07-2013 дата публикации

Wireless local area network and method for communicating by using wireless local area network

Номер: US20130182696A1
Автор: Fang Liu, Jianrui YANG, Ruiqiang Diao, Shusheng Zhang
Принадлежит: Huawei Technologies Co Ltd

The present invention provides a wireless local area network WLAN and a method for communicating by using the WLAN, which includes at least one radio module and an access controller. The radio module converts a first air interface wireless signal from a station into a first baseband signal, and bears the first baseband signal on an Ethernet and sends the first baseband signal to the access controller. The access controller processes the first baseband signal to generate first service data, and forwards the first service data. The access controller further receives second service data, processes the second service data to generate a second baseband signal, and bears the second baseband signal on the Ethernet and sends the second baseband signal to the at least one radio module. The present invention can increase the efficiency and utilization rate of a spectrum.

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Номер записи: 35
25-07-2013 дата публикации

METHOD OF LINK ADAPTATION IN WIRELESS LOCAL AREA NETWORK AND APPARATUS FOR THE SAME

Номер: US20130188630A1
Автор: Lee Dae Won, Seok Yong Ho, Song Kyoung Young
Принадлежит: LG ELECTRONICS INC.

A method of link adaptation in a wireless local area network is provided. The method includes requesting, by a requester, modulation and coding scheme (MCS) feedback to a plurality of responders, by transmitting a MCS request (MRQ) indicator, and, receiving, by the requester, feedback frames from each of the plurality of responders, wherein each of the feedback frame comprises MCS feedback (MFB) information. 112-. (canceled)13. A method for link adaptation in a wireless local area network , the method comprising;broadcasting, by a requesting device, a control frame to a first responding device and a second responding device, the control frame including a control field and a null data packet (NDP) announcement frame;transmitting, by the requesting device, a NDP to the first responding device and the second responding device after transmitting the control frame; andreceiving, by the requesting device, a first feedback frame as a response to the NDP announcement frame and the NDP from the first responding device,wherein the NDP announcement frame includes a first identifier identifying the first responding device and a second identifier identifying the second responding device,wherein the control field includes a feedback request field requesting a modulation and coding scheme (MCS) feedback, andwherein the first feedback frame includes a feedback subfield and MCS feedback information, the feedback subfield indicating that the MCS feedback information is a response to the request of the MCS feedback.14. The method of claim 13 , further comprising:transmitting, by the requesting device, a feedback poll frame to the second responding device after receiving the first feedback frame; andreceiving, by the requesting device, a second feedback frame from the second responding device.15. The method of claim 14 , wherein the second identifier in the NDP announcement frame is subsequent to the first identifier in the NDP announcement frame.16. The method of claim 13 , wherein ...

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Номер записи: 36
01-08-2013 дата публикации

MAC Header Compression in Long-Range Wireless Local Area Networks

Номер: US20130195001A1
Автор: Liu Yong
Принадлежит:

A method includes receiving, at or from a station STA, a plurality of packets. Each packet includes a set of flag bits, and a MAC header containing at least a first address field specifying a receiver address and a second address field specifying a transmitter address. The method also includes determining whether each set of flag bits indicates that the STA was associated with an AP when the respective packet was generated, and processing the MAC header of each packet. Processing the MAC header of each packet includes processing a third address field in each packet for which it is determined that the respective set of flag bits indicates that the STA was not associated with an AP when the respective packet was generated. The third address field contains a MAC address of the STA. 1. A method comprising: each packet of the plurality of packets includes (i) a set of one or more flag bits, and (ii) a medium access control (MAC) header, and', 'each MAC header contains at least (i) a first address field specifying a receiver address, and (ii) a second address field specifying a transmitter address;, 'receiving, at or from a station (STA), a plurality of packets, wherein'}determining whether each set of one or more flag bits indicates that the STA was associated with an access point (AP) when the respective packet was generated; andprocessing the MAC header of each packet of the plurality of packets, wherein processing the MAC header of each packet includes processing a third address field in each packet for which it is determined that the respective set of one or more flag bits indicates that the STA was not associated with an AP when the respective packet was generated, and wherein the third address field contains a MAC address of the STA.2. A method according to claim 1 , wherein the method further comprises determining whether each set of one or more flag bits indicates that the respective packet includes aggregated MAC service data units (A-MSDUs) claim 1 , and ...

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Номер записи: 37
01-08-2013 дата публикации

WIRELESS BRIDGE DEVICE

Номер: US20130195091A1
Автор: Fontaine Aaron Michael, Gibbs Richard, Hidem Stephen E., III Joseph P., Meyer James A., Tretter
Принадлежит: North Pole Engineering, Inc.

Techniques are described for connecting devices that use the ANT wireless protocol to other devices or networks that use the Wi-Fi wireless protocol. In one example, a network device is disclosed that comprises a processor configured to receive ANT data from a sensor, encapsulate the ANT data in a Wi-Fi packet, and transmit the Wi-Fi packet directly to a wireless access point without using an intermediate computing device. 1. A network device comprising a processor configured to:receive ANT data from a sensor;encapsulate the ANT data in a Wi-Fi packet; andtransmit the Wi-Fi packet directly to a wireless access point without using an intermediate computing device.2. The network device of wherein the ANT data is routed to a web service via the wireless access point.3. The network device of wherein the Wi-Fi packet with encapsulated ANT data is broadcast to a plurality of wireless endpoint devices.4. The network device of wherein the sensor is selected from the group consisting of heart rate monitors claim 1 , stride-based speed and distance monitors claim 1 , bicycle speed and cadence monitors claim 1 , bicycle power monitors claim 1 , and any combination of ANT radio enabled devices.5. A method comprising:receiving ANT data from a sensor;encapsulating the ANT data in a Wi-Fi packet; andtransmitting the Wi-Fi packet directly to a wireless access point without using an intermediate computing device.6. The method of wherein the ANT data is routed to a web service via the wireless access point.7. The method of wherein the Wi-Fi packet with encapsulated ANT data is broadcast to a plurality of wireless endpoint devices.8. The method of wherein the sensor is selected from the group consisting of heart rate monitors claim 5 , stride-based speed and distance monitors claim 5 , bicycle speed and cadence monitors claim 5 , bicycle power monitors claim 5 , and any combination of ANT radio enabled devices.9. A network device comprising a processor configured to:receive ANT data ...

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Номер записи: 38
01-08-2013 дата публикации

SYSTEMS AND METHODS FOR GENERATING PREAMBLE SYMBOLS IN COMMUNICATION SYSTEMS

Номер: US20130195092A1
Автор: Srinivasa Sudhir, Zhang Hongyuan
Принадлежит: MARVELL WORLD TRADE LTD.

A method for transmitting an 802.11ah packet is provided. A training field sequence is generated using control circuitry. A preamble for a packet is generated using the control circuitry. The preamble includes a training field symbol which includes the training field sequence. A portion of the training field sequence is within a plurality of guard tones of the training field symbol. The preamble is transmitted using transmit circuitry. 1. A method for transmitting an 802.11ah packet , the method comprising:generating, using control circuitry, a training field sequence;generating, using the control circuitry, a preamble for a packet, wherein the preamble comprises a training field symbol, wherein the training field symbol comprises the training field sequence, wherein a portion of the training field sequence is within a plurality of guard tones of the training field symbol; andtransmitting, using transmit circuitry, the preamble.2. The method of claim 1 , wherein the portion of the training field sequence within the plurality of guard tones of the training field symbol are non-zero.3. The method of claim 1 , wherein the portion of the training field sequence within the plurality of guard tones of the training field symbol are at both ends of the training field sequence within guard tones at both ends of the training field symbol.4. The method of claim 1 , wherein the training field sequence is based on repetitions of a training field sequence substantially similar to that of a baseline bandwidth.5. The method of claim 4 , wherein the training field sequence of the baseline bandwidth comprises a bit sequence of {1 claim 4 , 1 claim 4 , LTF claim 4 , 0 claim 4 , LTF-1 claim 4 , −1} claim 4 , wherein LTFand LTFare predetermined training field bit sequences.6. The method of claim 4 , wherein the baseline bandwidth is 2 MHz.7. The method of claim 4 , wherein generating the preamble for the packet comprises generating the preamble for a bandwidth greater than baseline ...

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Номер записи: 39
29-08-2013 дата публикации

CHANNEL SOUNDING METHOD IN WIRELESS LOCAL AREA NETWORK SYSTEM AND APPARATUS FOR SUPPORTING THE SAME

Номер: US20130223427A1
Автор: Kang Byeong Woo, Lee Dae Won, PARK Jong Hyun, Seok Yong Ho, Sohn Ill Soo
Принадлежит: LG ELECTRONICS INC.

A method for a channel sounding in a wireless local area network is provided. The method includes transmitting a null data packet announcement (NDPA) frame, to a plurality of receivers, the NDPA frame requesting a channel statement information feedback and announcing that a null data packet (NDP) frame is to be transmitted; transmitting the NDP frame being a basis of channel estimation for the plurality of receivers; receiving a first feedback frame from a first receiver among the plurality of receivers, transmitting a feedback poll frame to a second receiver; and, receiving a second feedback frame from the second receiver, the second feedback frame including second channel state information estimated by the second receiver. If the first receiver fails to perform the channel estimation, the first feedback frame is a null feedback frame. The null feedback frame is a feedback frame not including channel state information. 111.-. (canceled)12. A method for a channel sounding in a wireless local area network , the method comprising:generating, by a device, a 20 MHz null data packet announcement (NDPA) frame;duplicating, by the device, the 20 MHz NDPA frame to generate a duplicate 20 MHz NDPA frame;transmitting, by the device, the 20 MHz NDPA frame and the duplicate 20 MHz NDPA frame followed by a null data packet (NDP) over a transmission bandwidth that includes two or more 20 MHz channels for initiating a channel sounding; andreceiving, by the device, a report frame over a reception bandwidth from a receiver that has received the NDP and at least one of the 20 MHz NDPA frame and duplicate 20 MHz NDPA frame,wherein the reception bandwidth is not wider than the transmission bandwidth, andwherein each of the 20 MHz NDPA frame and the duplicate 20 MHz NDPA frame comprises first bandwidth information indicating the transmission bandwidth.13. The method of claim 12 , wherein the duplicating the 20 MHz NDPA frame comprises:generating the duplicate 20 MHz NDPA frame and at ...

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Номер записи: 40
05-09-2013 дата публикации

HIGH SPEED MEDIA ACCESS CONTROL AND DIRECT LINK PROTOCOL

Номер: US20130230038A1
Автор: Nanda Sanjiv, Walton Jay Rodney
Принадлежит: QUALCOMM INCORPORATED

Techniques for MAC processing for efficient use of high throughput systems that may be backward compatible with various types of legacy systems are disclosed. In one aspect, a data frame is formed comprising a common portion for transmission in a format receivable by various stations, such as access points and remote stations. The data frame also comprises a dedicated portion, formatted for transmission to a specified remote station. In another aspect, the common portion is unsteered, and the dedicated portion is steered. In another aspect, an access point schedules an allocation in response to a data indication included in a common portion of a data frame transmitted from one remote station to another. In another aspect, a first station transmits a reference to a second station, which measures the reference and generates feedback therefrom. 1. A method for wireless communications by a transmitting station , comprising:transmitting a preamble during a transmission opportunity (TXOP);transmitting one or more packets to a first receiving station during the TXOP;inserting guardband interframe spacings (GIFS) in the TXOP; andtransmitting one or more additional packets to one or more alternate receiving stations.2. The method of claim 1 , wherein the preamble is used for multiple claim 1 , consecutive transmissions from the transmitting station to different receiving stations.3. The method of claim 2 , wherein the preamble is a pilot transmission.4. The method of claim 1 , wherein transmitting the one or more packets to the first receiving station comprises:sequentially transmitting the one or more packets to the first receiving station.5. The method of claim 1 , wherein the preamble is configured to enable the first receiving station and the one or more alternative receiving stations to estimate a multiple-input multiple-output (MIMO) spatial channel.6. The method of claim 1 , wherein the one or more packets include a header.7. The method of claim 1 , wherein the TXOP ...

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Номер записи: 41
12-09-2013 дата публикации

WLAN SYSTEM SCANNING AND SELECTION

Номер: US20130235861A1
Автор: Balasubramanian Srinivasan, GIL Amit, Kannan Saravana Krishnan, Kuzhiyil Anup, Raju Lalit Yerramilli, Timariu Luiza
Принадлежит: QUALCOMM INCORPORATED

Techniques for performing WLAN system scanning and selection are described. A terminal performs multiple iterations of scan to detect for WLAN systems. A scan list containing at least one WLAN system to detect for is initially determined For each scan iteration, a scan type may be selected from among the supported scan types. The selected scan type may indicate passive scan or active scan, frequency channels to scan, etc. A scan may be performed based on the selected scan type. Signal strength measurements are obtained for access points received during the scan and used to identify detected access points. After all scan iterations are completed, candidates access points are identified based on the scan results, e.g., based on the signal strength measurements for the detected access points and a detection threshold. The best candidate access point may be selected for association by the terminal

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Номер записи: 42
26-09-2013 дата публикации

ADJACENT CHANNEL OPTIMIZED RECEIVER

Номер: US20130252567A1
Автор: LASCARI Lance D., PERA Robert J.
Принадлежит: UBIQUITI NETWORKS, INC.

The present invention offers significant improvements in the performance of a radio receiver operating in an environment with high desired band interference. The present invention comprises a high selectivity RF circuit that is located between the antenna and the radio receiver, and utilizes superheterodyne technology to filter adjacent channel interference in the desired band frequency spectrum. This type of interference is problematic for IEEE 802.11 radio receivers that are implemented with the popular direct conversion radio receiver architectures. The present invention may be utilized in many types of radio receivers. 1. A device comprising:a down-converter operative to receive a first RF signal and generates a second RF signal;one or more channel select switches coupled to a plurality of filters, said switches operative to direct the second RF signal to at least one of said filters in response to a control signal, said control signal indicative of an interference signal substantially near the skirts of one of said filters.2. The device of wherein the third RF signal and the control signal are coupled to a radio receiver claim 1 , said receiver determining the interference signal.3. The device of further comprising:a first out-of-band filter coupled to the input of the down convertor, anda second out-of-band filter coupled to the output of the up-convertor.4. The device of further including:a programmable oscillator that receives a first control signal coupled from a radio receiver and generates a local oscillator signal that is coupled to the down converter and the up-converter.5. The device of wherein the control signal selects for a filter that is skewed from the center frequency of the second RF frequency.6. The device of wherein the control signal comprises bandwidth information of a desired channel.7. The device of wherein the filters are SAW filters.8. The device of wherein the filters comprise filters that have bandwidths whose values are substantially ...

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Номер записи: 43
17-10-2013 дата публикации

Frame Padding For Wireless Communications

Номер: US20130272179A1
Автор: Banerjea Raja, Ho Ken Kinwah, Liu Yong, Ramamurthy Harish, Zhang Hongyuan
Принадлежит:

Systems and techniques relating to wireless communications are described. A described technique includes generating a physical frame and causing a transmission of the physical frame to the wireless communication device. The physical frame includes (i) one or more medium access control data units that encapsulate data for a wireless communication device, (ii) a medium access control layer pad that includes one or more padding delimiters, and (iii) a physical layer pad, wherein a length of the medium access control layer pad and a length of the physical layer pad are based on the physical frame. The one or more padding delimiters can include an end-of-frame flag to inform the wireless communication device to stop receiving a remaining portion of the physical frame. 127-. (canceled)28. A method comprising:generating a physical frame, the physical frame comprising (i) one or more medium access control data units that encapsulate data for a wireless communication device, (ii) a medium access control layer pad that includes one or more padding delimiters, and (iii) a physical layer pad, wherein a length of the medium access control layer pad and a length of the physical layer pad are based on the physical frame, wherein the one or more padding delimiters include an end-of-frame flag to inform the wireless communication device to stop receiving a remaining portion of the physical frame; andcausing a transmission of the physical frame to the wireless communication device.29. The method of claim 28 , wherein the physical frame includes an aggregated medium access control protocol data unit claim 28 , wherein the aggregated medium access control protocol data unit includes the one or more medium access control data units claim 28 , and wherein generating the physical frame comprises:including the one or more padding delimiters after a last non-zero-length aggregated medium access control protocol data unit subframe of the aggregated medium access control protocol data unit.30 ...

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Номер записи: 44
17-10-2013 дата публикации

WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION DEVICE

Номер: US20130272277A1
Автор: ISHIHARA Hiroyuki, Shibuta Akira, SUWA Yutaka
Принадлежит: Panasonic Corporation

In a wireless communication system that conducts a communication between a base station and a terminal the base station includes a first communication unit using a first communication system of a TDMA system, and a second communication unit using a second communication system, and the terminal includes a third communication unit using the first communication system, and a fourth communication unit using the second communication system. The base station transmits a control signal in the first communication system with the use of the first communication unit, and the base station determines timing of transmission for the second communication unit according to timing of TDMA of the first communication unit. The third communication unit receives the control signal transmitted from the base station in the first communication system, and the fourth communication unit controls receiving operation according to information included in the control signal. 1. A wireless communication system that conducts a communication between a base station and a terminal , whereinthe base station includes a first communication unit using a first communication system of a TDMA system, and a second communication unit using a second communication system which differs from the first communication system,the terminal includes a third communication unit using the first communication system of the TDMA system, and a fourth communication unit using the second communication system,the base station transmits a control signal in the first communication system with the use of the first communication unit,the base station determines timing of transmission for the second communication unit according to timing of TDMA of the first communication unit,the third communication unit of the terminal receives the control signal transmitted from the base station in the first communication system, andthe fourth communication unit of the terminal controls receiving operation according to information included in the ...

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Номер записи: 45
17-10-2013 дата публикации

TONE SCALING PARAMETERS IN SUB-1 GHZ NETWORKS

Номер: US20130272282A1
Автор: Baik Eugene J., Vermani Sameer
Принадлежит:

Systems and methods of controlling characteristics of messages in sub-1 GHz networks (e.g., IEEE 802.11ah networks) are disclosed. One or more data structures indicating tone scaling parameters may be stored at or accessible to transmitters and receivers. The data structures may be organized based on a frame format, a wireless network bandwidth, and/or the number of spatial streams in use at the wireless network. Information stored in the data structures may be used in generation and processing of messages communicated via the sub-1 GHz network. 1. A method comprising:selecting, at a transmitter, one or more tone scaling parameters for use in communicating a packet via a sub-one gigahertz wireless network operating at a particular bandwidth, wherein the one or more tone scaling parameters are selected based at least in part on a frame format of the packet and the particular bandwidth;generating the packet, wherein generating the packet comprises scaling one or more fields of the packet in accordance with the one or more tone scaling parameters; andsending the packet from the transmitter to a receiver.2. The method of claim 1 , wherein the sub-one gigahertz wireless network operates in accordance with an Institute of Electrical and Electronics Engineers (IEEE) 802.11ah protocol.3. The method of claim 1 , wherein the one or more tone scaling parameters include claim 1 , for each of a plurality of bandwidths: a short training field (STF) tone scaling parameter;', 'a long training field (LTF) tone scaling parameter;', 'a signal field (SIG) tone scaling parameter;', 'a data portion tone scaling parameter; and', 'a multiple-input multiple-output long training field (MIMO-LTF) tone scaling parameter., 'when the frame format is a single user frame format4. The method of claim 3 , wherein the SIG tone scaling parameter is different than the data portion tone scaling parameter for at least one of the plurality of bandwidths.5. The method of claim 1 , wherein the one or more ...

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Номер записи: 46
17-10-2013 дата публикации

RADIO COMMUNICATION DEVICE AND METHOD FOR OPERATING A RADIO COMMUNICATION DEVICE

Номер: US20130272283A1
Автор: Aue Volker, Deparis Francois, HOFMANN Matthias, Jechoux Bruno
Принадлежит:

According to an aspect of this disclosure, a radio communication device is provided comprising a first transceiver configured to transmit and receive signals in accordance with a Cellular Wide Area radio communication technology; a second transceiver configured to transmit and receive signals in accordance with a Short Range radio communication technology or a Metropolitan Area System radio communication technology; a first processor configured to control the first transceiver; and a second processor configured to control the second transceiver wherein the first processor is configured to control the first transceiver to transmit signals in accordance with a predefined transmitting schedule, wherein the first processor is further configured to control the first transceiver to omit transmitting signals within at least one of a time period and a frequency band provided for signal transmission of the first transceiver in accordance with the predefined transmitting schedule. 1. A radio communication device , comprising:a first transceiver configured to transmit and receive signals in accordance with a Cellular Wide Area radio communication technology;a second transceiver configured to transmit and receive signals in accordance with a Short Range radio communication technology or a Metropolitan Area System radio communication technology;a first processor configured to control the first transceiver;a second processor configured to control the second transceiver;wherein the first processor is configured to control the first transceiver to transmit signals in accordance with a predefined transmitting schedule, wherein the first processor is further configured to control the first transceiver to omit transmitting signals within at least one of a time period and a frequency band provided for signal transmission of the first transceiver in accordance with the predefined transmitting schedule.2. The radio communication device of claim 1 ,wherein the predefined transmitting ...

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Номер записи: 47
31-10-2013 дата публикации

MULTICARRIER PACKET COMMUNICATION SYSTEM

Номер: US20130286943A1
Автор: Cooklev Todor, Lanzl Colin, Lee Dongjun, Tzannes Marcos C.
Принадлежит:

Messages transmitted between a receiver and a transmitter are used to maximize a communication data rate. In particular, a multicarrier modulation system uses messages that are sent from the receiver to the transmitter to exchange one or more sets of optimized communication parameters. The transmitter then stores these communication parameters and when transmitting to that particular receiver, the transmitter utilizes the stored parameters in an effort to maximize the data rate to that receiver. Likewise, when the receiver receives packets from that particular transmitter, the receiver can utilize the stored communication parameters for reception. 1. A method for optimizing communication in a wireless multicarrier communication system comprising:transmitting a packet at a first rate;determining communication parameters based on the received packet;transmitting an acknowledgement comprising the communication parameters; andcommencing communication based on the communication parameters.2. The method of claim 1 , further comprising determining a header field indicating the communication parameters being used for communication.3. The method of claim 1 , further comprising demodulating and decoding received data based on information in a header field.4. The method of claim 1 , further comprising switching to transmitting at a second rate if the packet is note received.5. The method of claim 1 , further comprising transmitting an acknowledgement indicating the packet was successfully received and to continue communications based on the communication parameters.6. The method of claim 1 , wherein the communication system comprises one or more stations claim 1 , access points and legacy stations.7. The method of claim 1 , wherein an extended rate extended signal field identifies the communication parameters.8. A system for optimizing communication in a wireless multicarrier communication system comprising:means for transmitting a packet at a first rate;means for determining ...

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Номер записи: 48
31-10-2013 дата публикации

METHOD AND APPARATUS PREVENTING PLURALITY OF STATIONS IN WLAN FROM COLLIDING WITH EACH OTHER WHEN ATTEMPTING TO ACCESS MEDIUM

Номер: US20130287013A1
Автор: KWON Chang-Yeul
Принадлежит:

A method and apparatus for preventing a plurality of stations in a wireless local area network (WLAN) from colliding with each other when accessing a medium are provided. In the method, an access point (AP) determines the transmission capabilities of a plurality of stations in a basic service set (BSS) of the AP, determines the format of control frames or data frames which have a high throughput (HT) format to be used in the BSS of the AP, and notifies the stations of the result of the determination. Therefore, it is possible to adaptively choose and use an optimum method of preventing a plurality of stations in a WLAN from colliding with each other when accessing a medium according to the circumstances in a WLAN by referencing the transmission capabilities of a plurality of stations in the WLAN. 1. An apparatus for preventing a plurality of stations in a wireless local area network (WLAN) from colliding with each other , the apparatus comprising:a processing unit configured to determine as a determination, whether all HT stations of the plurality of stations support a transmission protection to protect a transmission opportunity for one of the plurality of stations according to a period of time when others of the plurality of stations do not transmit data, and to indicate in a field of a frame, the determination as to whether all HT stations of the plurality of stations support the transmission protection; anda transmission unit configured to transmit the frame including the field indicating the determination as to whether all HT stations of the plurality of stations support the transmission protection,wherein the period of time is determined based on data rate and length information included in a legacy format physical (PHY) header of a high throughput (HT) station data frame.2. The apparatus of claim 1 , wherein transmission protection starts with an initial frame.3. The apparatus of claim 1 , wherein the initial frame is a request-to-send (RTS) frame and a ...

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Номер записи: 49
07-11-2013 дата публикации

Reducing power consumption in a device operating as an access point of a wireless local area network

Номер: US20130294303A1
Автор: Pankaj Vyas, Venu Madhava Rao Kosuri, Vishal Batra
Принадлежит: Gainspan Corp

An access point communicates with a wireless station based on a point-to-point channel, to determine time instances of future communication to be received from the wireless station. In intervals between such future communications, the access point powers down at least some portions of a circuit contained within the access point for at least a partial duration between such future communications. In an embodiment, the powered-down portions include the receiver portions of the access point. The access point may be battery-powered, and the powering-down of the receiver portions enables reduction of power consumption in the access point.

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Номер записи: 50
07-11-2013 дата публикации

COMMUNICATION-PATH CONTROL PROGRAM AND INFORMATION PROCESSING APPARATUS

Номер: US20130294430A1
Автор: KIMURA Masatoshi
Принадлежит: FUJITSU LIMITED

A computer-readable recording medium has stored therein a communication-path control program causing a computer to execute a process which includes detecting a device capable of wireless communication out of a connecting device to be a destination of wireless communication to connect to a network and a storage medium that performs wireless communication; when having detected the connecting device, connecting to the connecting device; when having detected the storage medium in a state where the computer is connected to the connecting device, determining whether a certain application is running on the computer; and when the certain application is not running, disconnecting from the connecting device and connecting to the storage medium. 1. A computer-readable recording medium having stored therein a communication-path control program causing a computer to execute a process comprising:detecting a device capable of wireless communication out of a connecting device to be a destination of wireless communication to connect to a network and a storage medium that performs wireless communication;when having detected the connecting device, connecting to the connecting device;when having detected the storage medium in a state where the computer is connected to the connecting device, determining whether a certain application is running on the computer; andwhen no certain application is running, disconnecting from the connecting device and connecting to the storage medium.2. The computer-readable recording medium according to claim 1 , wherein the process further comprises:when the storage medium has been detected and a predetermined time has elapsed since the last time the computer was connected to the storage medium, connecting to the storage medium.3. The computer-readable recording medium according to claim 1 , wherein the process further comprises:when the storage medium has been detected and a predetermined time has not elapsed since the last time the computer was connected ...

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Номер записи: 51
14-11-2013 дата публикации

LOCAL INFORMATION DELIVERY SYSTEM

Номер: US20130301630A1
Автор: Mitani Takuya, Suda Hiroshi
Принадлежит: BEMAP, INC.

A sensing device senses a frame of a data link layer transmitted from the wireless LAN interface of a mobile phone without establishing connection with the mobile phone, detects equipment identification information of the mobile phone from the frame, and transmits the detected equipment identification information to a server device. The server device then selects delivery data based on identification information of the sensing device that has detected the equipment identifier, and transmits the selected delivery data via a mobile phone network to the mobile phone corresponding to the equipment identification information. 1. A local information delivery system comprising:one or more mobile phones that has a wireless LAN interface;one or more sensing devices that senses a frame of a data link layer transmitted from the wireless LAN interface of the mobile phone, detects equipment identification information of the mobile phone from the frame, and transmits the detected equipment identification information to a server device, without establishing connection with the mobile phone; anda server device that selects delivery data based on identification information of the sensing device that has detected the equipment identifier, and transmits the selected delivery data to the mobile phone corresponding to the equipment identification information via a mobile phone network.2. The local information delivery system according to claim 1 ,wherein the sensing device detects a search frame for searching a communication partner that is transmitted from the wireless LAN interface of the mobile phone, detects equipment identification information of the mobile phone from the search frame, and transmits the detected equipment identification information to the server device3. The local information delivery system according to claim 2 ,wherein the wireless LAN interface conforms to the IEEE802.11 standard, the search signal is a probe request, and the equipment identifier is a MAC ...

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Номер записи: 52
28-11-2013 дата публикации

METHOD FOR COMMUNICATING IN A NETWORK, A SYSTEM AND A PRIMARY STATION THEREFOR

Номер: US20130315220A1
Автор: Linnartz John-Paul Marie Gerard, Van Kooten Patrick, WANG XIANGYU
Принадлежит: KONINKLIJKE PHILIPS N.V.

The present invention relates to a system comprising at least one primary station and at least one secondary station, wherein the primary station comprises communication means for communicating with the secondary station in accordance with a first protocol, wherein the communication means are arranged for communicating with a plurality of further stations in accordance with a further protocol, and wherein the primary station comprises control means for generating a message to be broadcast to the secondary station, said message comprising purposely erroneous information causing the at least one secondary station to remain silent for a predetermined duration. 1. A system comprising:at least one primary station andat least one secondary station, communication means for communicating with the at least one secondary station in accordance with a first protocol, wherein the communication means are arranged for communicating with a plurality of further stations in accordance with a further protocol, and', 'control means for generating a message to be broadcast to the secondary station, said message comprising purposely erroneous information causing the at least one secondary station to remain silent for a predetermined duration, and', 'wherein the message is a data packet and wherein the erroneous information comprises the length of the data packet., 'wherein the at least one primary station comprises'}2. The system of wherein the further stations are arranged for communicating with one another during the predetermined duration in accordance with the further protocol.3. The system of claim 1 , wherein the message is a data packet and wherein the erroneous information comprises the length of the data packet.6. The system of wherein the control means of the primary station are arranged to generate a message in response to arrival of data to be transmitted to at least one of the further stations.7. The system of wherein the further protocol is a wireless ad hoc network ...

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Номер записи: 53
19-12-2013 дата публикации

METHOD AND APPARATUS OF CHANNEL ACCESS IN WIRELESS LOCAL AREA NETWORK

Номер: US20130336251A1
Автор: Lee Sok Kyu, Park Jae Woo
Принадлежит:

A channel access method in WLAN system is provided. The method includes receiving packets transmitted from a higher protocol layer, classifying the packets to map the packets to ACs to which the packets correspond, transmitting the packets to queues corresponding to the ACs to which the packets are mapped, among a plurality of queues by ACs, independently applying a channel access function to each of the plurality of queues by ACs by avoiding a collision among the plurality of queues by ACs, transmitting a packet determined to be transmitted first, according to the application result of the channel access function. The packet includes a first frame to be transmitted to a first terminal and a second frame to be transmitted to a second terminal. The plurality of queues by ACs are queues with respect to the first frame to be transmitted to the first terminal. 1. A channel access method in a wireless local area network (WLAN) system , the method comprising:receiving packets to be transmitted from a higher protocol layer;classifying the packets to map the packets to access categories (ACs) to which the packets correspond;transmitting the packets to queues corresponding to the ACs to which the packets are mapped, among a plurality of queues by ACs;independently applying a channel access function to each of the plurality of queues by ACs by avoiding a collision among the plurality of queues by ACs,transmitting a packet determined to be transmitted first, according to the application result of the channel access function,wherein the packet includes a first frame to be transmitted to a first terminal and a second frame to be transmitted to a second terminal, andthe plurality of queues by ACs are queues with respect to the first frame to be transmitted to the first terminal.2. The method of claim 1 , wherein the queue with respect to the second frame to be transmitted to the second terminal is implemented in a higher layer of a layer in which the queue with respect to the ...

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Номер записи: 54
19-12-2013 дата публикации

METHOD AND APPARATUS FOR TRANSMITTING PLCP FRAME IN WIRELESS LOCAL AREA NETWORK SYSTEM

Номер: US20130336257A1
Автор: Kang Byeong Woo, Kim Bong Hoe, Lee Dae Won, Noh Yu Jin, Roh Dong Wook, Seok Yong Ho
Принадлежит:

A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIG field. 1. A method of transmitting data in a wireless local area network , performed by a transmitter , the method comprising:mapping a signal field onto a first binary phase shift keying (BPSK) constellation;mapping a first Very High Throughput Signal (VHT-SIG) field onto the first BPSK constellation;mapping a second VHT-SIG field onto a second BPSK constellation;transmitting the mapped signal field in a first Orthogonal Frequency Division Multiplex (OFDM) symbol;transmitting the mapped first VHT-SIG field in a second OFDM symbol; andtransmitting the mapped second VHT-SIG field in a third OFDM symbol,wherein the second OFDM symbol is contiguous with the third OFDM symbol,wherein the second BSPK constellation is rotated by 90° counter-clockwise relative to the first BPSK constellation, andwherein the first VHT-SIG field includes an indicator indicating Single User-Multiple Input Multiple Output (SU-MIMO) transmission or multi user-MIMO (MU-MIMO) transmission, and the second VHT-SIG field includes a cyclic redundancy check (CRC) for the first and second VHT-SIG fields.2. The method of claim 1 , wherein the signal field claim 1 , the first VHT-SIG field and the second VHT-SIG field are included in a physical layer convergence procedure (PLCP) header.3. The method of ...

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Номер записи: 55
02-01-2014 дата публикации

METHOD, DEVICE, COMPUTER PROGRAM AND INFORMATION STORAGE MEANS FOR OPTIMISING ACCESS TO A WIRELESS MEDIUM IN A COMMUNICATION NETWORK.

Номер: US20140003367A1
Автор: GUIGNARD ROMAIN, NEZOU Patrice, VIGER Pascal
Принадлежит:

The invention comprises adjustment of back-off timers to provide consistency of timing in a group of collaborating nodes. 1. A method for optimizing access to a wireless medium in a communication network accessible by a plurality of nodes , each node implementing a back-off counting based on carrier sense multiple access with collision avoidance , the plurality of nodes comprising a collaborative group of nodes further implementing a back-off allocation scheme based on each node maintaining a list of expected back-off values of the other nodes of the collaborative group , the group further comprising a receiving node and an emitting node , the method comprising the following steps implemented by the receiving node:detecting a communication event from the emitting node;time stamping of the communication event;identifying the emitting node as an origin of the communication event;determining an expiration time corresponding to an expected back-off value or back-off count of the identified emitting node;determining a slot drift parameter from the said time stamp of the communication event and from the determined expiration time;and, applying a slot drift correction based on the slot drift parameter.2. The method as claimed in wherein the slot drift parameter is a multiple of a back-off slot time unit.3. The method as claimed in wherein the step of determining a slot drift parameter comprises further determining:{'b': '1', 'a time interval elapsed from an expiration time, ET, of the expected back-off count of the emitter node;'}{'b': '1', 'or, a time interval before an expected expiration time, SET, of the back-off count of the emitter node.'}4. The method as claimed in wherein the elapsed time interval is determined according to the following steps:noticing the expiration of the expected back-off count;{'b': '1', 'storing an associated expiration time ET;'}{'b': '1', 'and, retrieving the stored expiration time ET.'}5. The method as claimed in wherein the time interval ...

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Номер записи: 56
09-01-2014 дата публикации

Transmission Protection For Wireless Communications

Номер: US20140010145A1
Автор: Banerjea Raja, Liu Yong, Ramamurthy Harish
Принадлежит: MARVELL WORLD TRADE LTD.

Systems and techniques for wireless communication are described. A described technique includes performing, at a first device, a channel-clearing sequence with multiple second devices to protect a wireless communication neighborhood of the first device and wireless communication neighborhoods of the second devices for a transmission of a multi-user frame, the multi-user frame including spatially steered data frames that are respectively intended for the second devices; determining bandwidth availabilities for the second devices based on information received from the second devices during the channel-clearing sequence; selecting a bandwidth configuration for the multi-user frame based on the bandwidth availabilities to produce a selected bandwidth configuration that enables the data frames to be spatially steered and transmitted concurrently within the multi-user frame based on a common bandwidth availability among the second devices; and generating and transmitting the multi-user frame to the second devices in accordance with the selected bandwidth configuration. 123.-. (canceled)24. A method , comprising:performing, at a first device, a channel-clearing sequence with multiple second devices to protect a wireless communication neighborhood of the first device and wireless communication neighborhoods of the second devices for a transmission of a multi-user frame, the multi-user frame comprising spatially steered data frames that are respectively intended for the second devices;determining bandwidth availabilities for the second devices based on information received from the second devices during the channel-clearing sequence;selecting a bandwidth configuration for the multi-user frame based on the bandwidth availabilities to produce a selected bandwidth configuration that enables the data frames to be spatially steered and transmitted concurrently within the multi-user frame based on a common bandwidth availability among the second devices; andgenerating and ...

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Номер записи: 57
09-01-2014 дата публикации

SCHEMES FOR PROVIDING PRIVATE WIRELESS NETWORK

Номер: US20140010224A1
Автор: Lee Hyoung-Gon
Принадлежит: EMPIRE TECHNOLOGY DEVELOPMENT LLC

Technologies are generally described for providing private wireless local area networks. In some examples, a method performed under control of a mobile operating server may include determining a first location of an end device, determining a first access point configured to provide a wireless local area network around the first location of the end device and instructing the first access point to provide the end device with a first private wireless local area network. 1. A method performed under control of a mobile operating server , comprising:determining a first location of an end device;determining a first access point configured to provide a wireless local area network around the first location of the end device; andinstructing the first access point to provide the end device with a first private wireless local area network.2. The method of claim 1 , further comprising:instructing the end device to connect to the first private wireless local area network provided by the first access point.3. The method of claim 1 , wherein the end device includes information for connecting to the first private wireless local area network provided by the first access point.4. The method of claim 1 , further comprising:instructing the first access point to terminate the first private wireless local area network when the end device moves out of the first location.5. The method of claim 1 , further comprising:measuring a first duration time for which the end device is located around the first access point, andwherein the instructing the first access point is based on the first duration time.6. The method of claim 5 , further comprising:determining a second location of the end device;determining a second access point configured to provide a wireless local area network around the second location of the end device; andinstructing the second access point to provide the end device with a second private wireless local area network.7. The method of claim 6 , further comprising:measuring a ...

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Номер записи: 58
06-02-2014 дата публикации

Wireless Communication Signaling For Aggregate Data Units

Номер: US20140036895A1
Автор: Banerjea Raja, Ho Ken Kinwah, Liu Yong, Ramamurthy Harish, Zhang Hongyuan
Принадлежит: MARVELL WORLD TRADE LTD.

Systems and techniques relating to wireless communications are described. A described technique includes obtaining data for a transmission to a wireless communication device. The wireless communication device can be configured to process incoming transmissions based on an aggregate data unit format that specifies signaling for aggregating multiple medium access control (MAC) data units. The technique includes, in a physical (PHY) frame, an aggregate data unit that is based on the data and the aggregate data unit format, the aggregate data unit including a single MAC data unit. The technique includes, in the PHY frame, an indication to signal that the MAC data unit in the aggregate data unit is singular and to cause the wireless communication device to accept the aggregate data unit without a corresponding block acknowledgement agreement. 125.-. (canceled)26. A method , comprising:obtaining data for transmission to a wireless communication device, wherein the wireless communication device is configured to process incoming transmissions based on an aggregate data unit format that specifies signaling for aggregating multiple medium access control (MAC) protocol data units (MPDUs);generating, based on the data and the aggregate data unit format, an aggregate MPDU (A-MPDU) that comprises a single MPDU having a length greater than zero, the single MPDU residing in a subframe of the A-MPDU;setting a delimiter of the subframe to indicate that the single MPDU is the only MPDU within the A-MPDU that has a length greater than zero, and to cause the wireless communication device to accept the A-MPDU without a corresponding block acknowledgement agreement;including, in a physical (PHY) frame, the A-MPDU; andtransmitting the PHY frame to the wireless communication device.27. The method of claim 26 , wherein setting the delimiter comprises setting an end-of-frame (EOF) field to one.28. The method of claim 26 , wherein obtaining the data comprises receiving management data claim 26 ...

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Номер записи: 59
13-02-2014 дата публикации

NETWORK SYSTEM, NODE DEVICE GROUP, AND SENSOR DEVICE GROUP

Номер: US20140043961A1
Автор: Saida Takeshi
Принадлежит: Omron Corporation

A network system has a computer device, and a plurality of node devices communicatively connected to the computer device via network with one or more sensor devices allowed to be connected to each of the plurality of node devices via wireless communication. Each of the node devices obtains sensor data from the sensor device which is connected to the node device itself via the wireless communication and saves the sensor data in a sensor data storage section incorporated in the node device itself. The computer device specifies and requests via the network sensor data that any one or more of the one or more sensor devices obtained, and obtains via the network the specified sensor data from the node device which has saved the specified sensor data in the sensor data storage section among the plurality of node devices. 1. A network system , comprising:a computer device; anda plurality of node devices communicatively connected to the computer device via network with one or more sensor devices allowed to be connected to each of the plurality of node devices via wireless communication,wherein each of the node devices obtains sensor data from the sensor device which is connected to the node device itself via the wireless communication and saves the sensor data in a sensor data storage section incorporated in the node device itself,wherein the computer device specifies and requests via the network sensor data that any one or more of the one or more sensor devices obtained, and obtains via the network the specified sensor data from the node device which has saved the specified sensor data in the sensor data storage section among the plurality of node devices,wherein each of the node devices has a previously defined common network identifier for the wireless communication,wherein each of the sensor devices requests connection to the plurality of node devices by specifying the network identifier to perform the wireless communication,wherein the network system further comprises a ...

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Номер записи: 60
20-02-2014 дата публикации

APN IP MANAGEMENT

Номер: US20140050208A1
Автор: Annaluru Sashidhar, CARVALHO John, Garg Mukesh, JINDAL TAMANNA
Принадлежит: STOKE, INC.

In one embodiment, a WLAN gateway (WGW) receives a dynamic host configuration protocol (DHCP) request from a WLAN controller for an IP address of a user equipment (UE). In one embodiment, DHCP server within the WGW assigns a local IP (LIP) address to the UE from a pool of local IP addresses maintained by the DHCP server. The WGW communicates the UE LIP address to the WLAN controller, wherein the UE LIP address is used by the WLAN controller to identify traffic to/from the UE while the UE is communicatively coupled to the WLAN and exchange the DE traffic between WGW and WLAN controller. In one embodiment, the WGW is configured to perform network address translation between the UE LIP and an external IP address assigned by one or more networks of the mobile network operator (MNO) to allow the UE to reach the network(s) in addition to the Internet. 1. A machine-implemented method for processing network traffic of a packet network , the method comprising:receiving, at a wireless local area network (WLAN) gateway (WGW), a dynamic host configuration protocol (DHCP) request from a WLAN controller of a WLAN for an internet protocol (IP) address of a user equipment (UE) communicatively coupled to the WLAN, wherein the WGW interfaces the WLAN with one or more networks of a mobile network operator (MNO);assigning, by a DHCP server within the WGW, in response to the DHCP request, a UE local IP (LIP) address to the UE from a pool of local IP addresses maintained by the DHCP server;communicating, by the WGW, the UE LIP address to the WLAN controller, wherein the UE LIP address is used by the WLAN controller to identify traffic to/from the UE while the UE is communicatively coupled to the WLAN and exchange the UE traffic between WGW and WLAN controller; andperforming, by the WGW, network address translation (NAT) between the LIP of the UE and an external IP address assigned by the one or more networks of the MNO to allow the UE to reach the one or more networks of the MNO in ...

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Номер записи: 61
27-02-2014 дата публикации

TRANSMISSION AND RECEPTION BANDWIDTH SETTING METHOD, MOBILE TERMINAL AND BASE STATION IN RADIO COMMUNICATION SYSTEM THAT DEFINES A PLURALITY OF SIGNAL BANDWIDTHS

Номер: US20140056264A1
Автор: Atarashi Hiroyuki, Higuchi Kenichi, Sawahashi Mamoru
Принадлежит: NTT DOCOMO, INC.

In a radio communication system defining a plurality of bandwidths, mobile terminals of kinds respectively corresponding to the plurality of bandwidths are accommodated in the system, and a minimum transmission bandwidth of the plurality of bandwidths is set as a transmission bandwidth of a downlink common channel. Or, every mobile terminal accommodated in the radio communication system is provided with a capability for processing a bandwidth equal to or greater than a predetermined value, and equal to or more than two transmission bandwidths that are equal to or less than a predetermined value are set as a transmission bandwidth of a downlink common channel. In the latter case, the mobile terminal identifies a bandwidth of a received downlink common channel. 120-. (canceled)21. A method for setting a transmission and reception bandwidth in a radio communication system defining a plurality of bandwidths , comprising:accommodating mobile terminals respectively corresponding to the plurality of bandwidths to the radio communication system regarding transmission bandwidths of a data channel transmitted using an uplink;providing a processing capability of a transmission bandwidth of a predetermined value greater than a minimum bandwidth in the plurality bandwidths to every mobile terminal accommodated in the radio communication system regarding transmission bandwidths of a pilot channel transmitted using an uplink; andsetting the transmission bandwidth of an uplink collision permissible channel transmitted from any mobile terminal in the radio communication system to be a minimum fixed transmission bandwidth of the plurality of bandwidths,wherein the base station in the radio communication system specifies a variable transmission band of an uplink collision permissible channel transmitted by the mobile terminal within a range of a bandwidth used by the base station.221. The transmission and reception bandwidth setting method as claimed in claim , comprising:setting the ...

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Номер записи: 62
27-02-2014 дата публикации

COMMUNICATION SERVER

Номер: US20140056291A1
Автор: HU Ta-Wei, LIN Chuan-Chih
Принадлежит: Jia Teng Technology Co.,Ltd.

A communication server at least includes a processing unit; a radio frequency (RF) unit connected to the processing unit; a network address conversion unit connected to the processing unit; a connection unit connected to the processing unit; and a display unit connected to the processing unit. It can be connected to the Internet network, the household phone, the mobile phone and the Internet phone for the use of communication so that a plurality of users can share the same communication server without any need of other communication equipments, thus achieving purposes of being easy to install, reduced set-up costs, enhanced communication efficiency, lowered call costs and reduce in the waste of resources. 1. A communication server at least comprising a processing unit;a radio frequency (RF) unit, connected to the processing unit;a network address conversion unit, connected to the processing unit;a connection unit, connected to the processing unit; anda display unit, connected to the processing unit.2. The communication server of claim 1 , wherein the processing unit claim 1 , the RF unit claim 1 , the network address conversion unit claim 1 , the connection unit and the display unit are combined with a housing each other.3. The communication server of claim 2 , wherein the processing unit claim 2 , the RF unit and the network address conversion unit are disposed in the housing; andthe connection unit and the display unit are located at both end surfaces of the housing.4. The communication server of claim 2 , wherein the processing unit is a single chip claim 2 , wafer claim 2 , or logic circuit claim 2 , and can further include a reset button provided on one side of the housing.5. The communication server of claim 2 , wherein the RF unit is Communication Agreement 802.11 claim 2 , and further contains an antenna located outside of the housing.6. The communication server of claim 2 , wherein the connection unit includes a RJ45 connector claim 2 , a network connector ...

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Номер записи: 63
27-02-2014 дата публикации

High Bandwidth Open Wired Network

Номер: US20140056292A1
Автор: Krug William P.
Принадлежит:

An open network suitable for a mobile platform that contains a plurality of host and peripheral devices. Within the network, a central server communicates with at least one switch. In turn, a plurality of network devices communicate with the switch. In turn, a plurality of host devices connect to network devices. Thus, each of the plurality of peripheral devices communicates with one of the host devices. Moreover, the mobile platform may be an aircraft including a control panel to control the network. Additionally, a CoreNet and the in flight entertainment and cabin services subsystem may be in communication with the network. Additionally, the network may include a satellite transceiver/data router. In one embodiment, the peripherals use Bluetooth protocol devices to communicate with host devices on a virtual local area network within the network. The virtual network controls the security and quality of service of the network that interconnects the host, and other, devices. 1. A local area network (LAN) suitable for a mobile platform , the LAN comprising:at least one area distribution box (ADB) that performs open systems interconnections (OSI) layer-3 routing to provide access to the LAN, the at least one ADB further configured as at least one switch providing open OSI layer-2 connectivity to the LAN by a plurality of different subsystems of the platform using a common frequency band;a control panel for controlling the LAN;a gateway subsystem interposed between the control panel and the at least one ADB for interfacing a crew information system of the mobile platform to the LAN and enabling management of a flow of information over the LAN from the control panel;a plurality of seat electronics boxes (SEBs) in communication with the at least one ADB, each SEB configured to provide a virtual local area network (VLAN) mapped to a group of seats on the mobile platform corresponding to the SEB and to provide each seat with at least one protected OSI layer-2 port.2. The ...

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Номер записи: 64
10-04-2014 дата публикации

INFORMATION PROCESSING APPARATUS AND CONNECTION CONTROL METHOD

Номер: US20140098250A1
Автор: Hirose Takatoshi
Принадлежит: c/o CANON KABUSHIKI KAISHA

Identification information for identifying each network out of a plurality of wireless networks is received. A wireless network identified by arbitrary identification information is wirelessly connected. Whether a printer in the wirelessly connected wireless network has a function of connecting a digital camera and performing output processing is inquired of the printer. Connection to the printer is controlled in accordance with a response to the inquiry. The digital camera performs output processing together with the connected printer. An information output apparatus having a function of connecting an information storage terminal apparatus by simple operation and performing output processing can be wirelessly connected. 112-. (canceled)13. An information processing apparatus , comprising:a receiving unit configured to receive identification information for identifying each of a plurality of wireless networks; anda connection unit configured to wirelessly connect to a printer, which is operating as an access point, in a wireless network identified by the received identification information, whereinthe information processing apparatus causes the connected printer to perform a print processing.14. The information processing apparatus according to claim 13 , further comprising:an inquiring unit configured to inquire, of an access point in the plurality of wireless networks, whether the access point has a function of performing a print processing; anda control unit configured to control connection to the access point in accordance with a response to the inquiry.15. The information processing apparatus according to claim 14 , wherein the control unit controls claim 14 , if the response to the inquiry is a positive response claim 14 , to connect to the access point which has positively responded.16. The information processing apparatus according to claim 14 , wherein the control unit controls claim 14 , if a plurality of access points which have positively responded ...

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Номер записи: 65
10-04-2014 дата публикации

METHOD AND SYSTEM FOR IMPROVED COMMUNICATION NETWORK SETUP UTILIZING EXTENDED TERMINALS

Номер: US20140098712A1
Автор: Iyer Mahesh, Thawani Manoj
Принадлежит: BROADCOM CORPORATION

Aspects of a method and system for improved communication network setup utilizing extended terminals are presented. Aspects of the method may comprise configuring a wireless Ethernet terminal functioning as a client station by a configurator via a network. The configured wireless Ethernet terminal may wirelessly receives information from a wireless station, and communicate the wirelessly received information to at least one of a plurality of wired stations via at least one of a plurality of corresponding wired interfaces. Aspects of the system may comprise a collocated device functioning as a configurator that configures a wireless Ethernet terminal functioning as a client station via a network. The configured wireless Ethernet terminal may wirelessly receives information from a wireless station, and communicate the wirelessly received information to at least one of a plurality of wired stations via at least one of a plurality of corresponding wired interfaces. 1. A method for communicating information , the method comprising: receiving a wireless local area network (WLAN) frame including a physical layer header field specifying at least one WLAN address and a physical layer service data unit (PSDU) field;', 'using information included in the PSDU field to determine a media access control (MAC) address of a local area network (LAN) station connected to the WET via a wired interface;', 'transcoding the physical layer header of the received WLAN frame to generate a LAN physical layer header including the MAC address of the LAN station; and', 'communicating a LAN frame based on said LAN physical layer header., 'performing, by processing circuitry integrated within a wireless Ethernet terminal (WET)2. The method according to claim 1 , comprising appending the LAN physical header to the WLAN frame.3. The method according to claim 1 , comprising associating a port at said WET corresponding to said determined network layer destination address.4. The method according to ...

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Номер записи: 66
01-01-2015 дата публикации

METHOD AND APPARATUS FOR CHANNEL ACCESS VIA NULL DATA PACKET FRAME IN WIRELESS LAN SYSTEM

Номер: US20150003367A1
Автор: Seok Yongho
Принадлежит:

The present invention relates to a wireless communication system, and more specifically to a method and an apparatus for channel access via a null data packet frame in a wireless LAN system. A method for channel access from a station (STA) in a wireless communication system according to one embodiment of the present invention comprises the steps of: receiving, from an access point (AP), configuration information for one or more slots for channel access; transmitting a first frame from a particular slot from among the one or more slots; and receiving, from the AP, a second frame responding to the first frame, wherein the first frame can be a null data packet (NDP) frame. 1. A method for performing channel access by a station (STA) of a wireless communication system , the method comprising:receiving configuration information regarding at least one slot for channel access from an access point (AP);transmitting a first frame at a specific slot from among the at least one slot; andreceiving a second frame responding to the first frame from the access point (AP),wherein the first frame is a null data packet (NDP) frame.2. The method according to claim 1 , wherein the first frame is a PLCP (Physical Layer Convergence Protocol) Packet Data Unit (PPDU) frame including a Short Training Field (STF) claim 1 , a Long Training Field (LTF) claim 1 , and a signal (SIG) field without inclusion of a data field.3. The method according to claim 2 , wherein the SIG field includes a type indication field claim 2 , a field for indicating an identifier (ID) of the STA claim 2 , a field for indicating an identifier of a Basic Service Set (BSS) claim 2 , and a Cyclic Redundancy Check (CRC) field.4. The method according to claim 3 , wherein the identifier (ID) of the STA is a Partial Association IDentifier (AID) claim 3 , and the identifier of the BSS is a Partial BSS IDentifier (BSSID).5. The method according to claim 1 , wherein the second frame is a data frame from the AP claim 1 , or an ...

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Номер записи: 67
01-01-2015 дата публикации

VALIDATING PRESENCE OF A COMMUNICATION DEVICE USING A WIRELESS LOCAL AREA NETWORK

Номер: US20150003433A1
Автор: Balla Ramesh, Sinha Rahul
Принадлежит:

A method and system for validating presence of a communication device in a confined area using a wireless local area network (WLAN) includes sending a first handshake message including a generated first key over a second network connection different from the WLAN connection by a device. A next step includes generating a second key to be returned to the device in a second handshake message over the same connection. A next step includes sending a WLAN probe request that has been modified to include the second key via the WLAN. A next step includes validating whether the device is present within the confined area using a second communication network; whereafter allowing communication access over the second network using both the first and second keys if the device is validated as being present within the confined area, and taking appropriate action if the device is not validated as being present within the confined area. 1. A method for validating presence of a device in a confined area using a wireless local area network (WLAN) operable in the confined area , the method comprising:sending, by the device to a server, a first handshake message including a generated first key over a connection in a second network different from the WLAN;generating, by the server, a second key to be returned to the device in a second handshake message over the second network connection in response to receiving the first handshake message;sending a WLAN probe request that has been modified to include the second key back to the server via the WLAN; andvalidating whether the device is present within the confined area by the server; whereaftertaking an action by the server in response to the validating step.2. The method of claim 1 , wherein taking an action includes one of:providing feedback to the device,allowing communication access to the server over the second network using both the first and second keys if the device is validated as being present within the confined area, anddisallowing ...

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Номер записи: 68
01-01-2015 дата публикации

WLAN DEVICE WITH PARALLEL WLAN RECEPTION USING AUXILIARY RECEIVER CHAIN

Номер: US20150003436A1
Автор: SHAPIRA Nir
Принадлежит:

A method includes communicating in a Wireless Local Area Network (WLAN) device on a first communication channel using one or more primary transmission/reception (TX/RX) chains. Concurrently with communicating on the first communication channel using the primary TX/RX chains, WLAN communication is received on one or more second communication channels using an auxiliary reception (RX) chain whose input signal is provided from an output of a receive amplifier in one of the primary TX/RX chains. 1. A method , comprising:in a Wireless Local Area Network (WLAN) device, communicating on a first communication channel using one or more primary transmission/reception (TX/RX) chains;concurrently with communicating on the first communication channel using the primary TX/RX chains, receiving WLAN communication on one or more second communication channels using an auxiliary reception (RX) chain whose input signal is provided from an output of a receive amplifier in one of the primary TX/RX chains.2. The method according to claim 1 , wherein receiving the WLAN communication comprises receiving WLAN frames claim 1 , and transferring the received WLAN frames to a host.3. The method according to claim 2 , and comprising selecting only a subset of the WLAN frames received on the second communication channels claim 2 , and transferring only the selected subset of the WLAN frames to the host.4. The method according to claim 3 , wherein selecting the subset comprises selecting the WLAN frames of one or more selected types claim 3 , or the WLAN frames having one or more selected addresses.5. The method according to claim 2 , and comprising removing claim 2 , at least partially claim 2 , payloads of the WLAN frames received on the auxiliary channel claim 2 , before transferring the WLAN frames to the host.6. The method according to claim 1 , wherein receiving the WLAN communication comprises detecting WLAN frames claim 1 , and transferring one or more attributes of the detected WLAN frames ...

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Номер записи: 69
06-01-2022 дата публикации

WIRELESS LAN SYSTEM AND INTERFERENCE CONTROL METHOD

Номер: US20220007419A1
Автор: KAWAMURA Kenichi, Nakamoto Hiroshi, Nakayama Shota, Takatori Yasushi, WAKAO Keisuke, Yamada Tomoyuki
Принадлежит: Nippon Telegraph and Telephone Corporation

Provided is a wireless LAN system in which an interference control signal transmitter that is provided in the surroundings of the wireless LAN base station and the wireless LAN terminal, and is configured to collect wireless environment information regarding the interfering AP/STA, and transmit, to the interfering AP/STA, an interference control signal that is to be used to set a transmission waiting period; and an interference control signal management device configured to collect the wireless environment information from the interference control signal transmitter, determine the interference control signal transmitter whose communication area includes the interfering AP/STA based on the wireless environment information, and control the determined interference control signal transmitter to transmit the interference control signal to be used to set the transmission waiting period that corresponds to a length of time of the communication between the wireless LAN base station and the wireless LAN terminal, wherein while the interfering AP/STA that has received the interference control signal sets the transmission waiting period, the wireless LAN base station and the wireless LAN terminal preferentially perform communication. 1. A wireless LAN system in which , in the surroundings of a wireless LAN base station and a wireless LAN terminal that perform communication with each other , there is an interfering AP/STA that is to transmit an interference signal , comprising: an interference control signal transmitter that is provided in the surroundings of the wireless LAN base station and the wireless LAN terminal , and is configured to collect wireless environment information regarding the interfering AP/STA , and transmit , to the interfering AP/STA , an interference control signal that is to be used to set a transmission waiting period; and an interference control signal management device configured to collect the wireless environment information from the interference ...

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Номер записи: 70
02-01-2020 дата публикации

BODY MOUNTED CAMERA SYSTEM FOR MONITORING DELIVERIES

Номер: US20200005614A1
Автор: Lark Walter, Nguyen Thomas, Provance Brett, Stein Bart
Принадлежит:

A delivery monitoring system comprises a portable camera positioned on a delivery person; a camera activation application executed by a mobile electronic device to control a video-generating operation of the portable camera; and a special-purpose processor that outputs a data instruction to an electronic locking device to unlock an entrance to a location for delivering an item by the delivery person only when the portable camera is recording video. 1. A delivery monitoring system , comprising:a portable camera positioned on a delivery person;a camera activation application executed by a mobile electronic device to control a video-generating operation of the portable camera; anda special-purpose processor that outputs a data instruction to an electronic locking device to unlock an entrance to a location for delivering an item by the delivery person only when the portable camera is recording video.2. The delivery monitoring system of claim 1 , wherein the portable camera includes a body mounted camera.3. The delivery monitoring system of claim 1 , wherein the portable camera includes an activation mechanism that configures the camera to exchange data communications with the camera activation application so that the camera begins the video-generating operation when the mobile electronic device is determined to be within a predetermined distance from the electronic locking device.4. The delivery monitoring system of claim 3 , further comprising a location module claim 3 , which receives and processes global positioning satellite (GPS) verification data that provides a location of the mobile electronic device.5. The delivery monitoring system of claim 1 , further comprising a wireless fidelity (WiFi) credential module that requests credentials from a location-based WiFi network to establish a communication path for at least a portion of the generated video.6. The delivery monitoring system of claim 1 , further comprising a video monitoring module that determines when the ...

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Номер записи: 71
07-01-2016 дата публикации

INFORMATION PROCESSING APPARATUS, SYSTEM, AND INFORMATION PROCESSING METHOD

Номер: US20160006483A1
Автор: NISHI Eiji
Принадлежит: FUJI XEROX CO., LTD.

An information processing apparatus includes a first communication unit, a second communication unit, and a communication-apparatus-side controller. The first communication unit performs wireless communication with plural terminal apparatuses, the number of which is less than or equal to a predetermined maximum number of connections. The second communication unit performs wireless communication with a connection-requesting terminal apparatus that newly attempts to perform wireless communication with the first communication unit. The communication-apparatus-side controller switches the wireless communication via the second communication unit to wireless communication via the first communication unit, the wireless communication via the first communication unit being performed using a dedicated line prepared in advance. 1. An information processing apparatus comprising:a first communication unit that performs wireless communication with a plurality of terminal apparatuses, the number of which is less than or equal to a predetermined maximum number of connections;a second communication unit that performs wireless communication with a connection-requesting terminal apparatus that newly attempts to perform wireless communication with the first communication unit; anda communication-apparatus-side controller that switches the wireless communication via the second communication unit to wireless communication via the first communication unit, the wireless communication via the first communication unit being performed using a dedicated line prepared in advance.2. The information processing apparatus according to claim 1 , wherein the communication-apparatus-side controller performs control to allow the connection-requesting terminal apparatus to perform wireless communication with the first communication unit while the connection-requesting terminal apparatus is able to perform wireless communication with the second communication unit.3. The information processing apparatus ...

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Номер записи: 72
07-01-2016 дата публикации

INFORMATION HANDLING SYSTEM ANTENNA MULTIPLEXED INTERFACE WITH ENHANCED EXTENSIONS

Номер: US20160006488A1
Автор: Quinn Liam B., Schuckle Richard W.
Принадлежит: DELL PRODUCTS L.P.

An information handling system adapts to changes in wireless communication protocols and frequencies by modifying a table that defines how wireless networking modules communicate through a wireless controller with antenna modules. In one embodiment, packets are switched between wireless communication modules and antenna modules by reference to an identifier stored in a lookup table of wireless controller. In another embodiment, the wireless controller directs wireless analog signals to between desired wireless networking modules and antenna modules with band pass filters that isolate signals based upon frequency. 1. An information handling system comprising:a housing;a processor disposed in the housing and operable to process information;a memory disposed in the housing and interfaced with the processor, the memory operable to store the information;plural wireless networking modules interfaced with the processor and memory, the wireless networking modules operable to process the information input as digital values to support wireless communication by outputting analog signals having the information carried at a selected frequency;plural antenna modules operable to receive the analog signals and send or receive the information as wireless signals; anda wireless controller interfaced with the plural wireless networking modules and the plural antenna modules, the wireless controller operable to direct information between predetermined of the wireless network modules and predetermined of the antenna modules, the wireless controller receiving the information from the plural wireless networking modules as analog signals and directing the analog signals to desired of the plural antenna modules by setting a band pass filter frequency at each of the plural antenna modules to allow the desired analog signal to pass to the desired antenna module;a lookup table interfaced with the wireless controller and storing an association of predetermined of the wireless network modules ...

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Номер записи: 73
05-01-2017 дата публикации

METHOD AND CORRESPONDING WIRELESS ACCESS POINT FOR ADJUSTING DATA RATE OF SECONDARY USERS

Номер: US20170006504A1
Автор: Ringland Simon Patrick Alexander, Scahill Francis James, Townend David Paul
Принадлежит: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

The disclosure relates to a dual network access point capable of establishing a home wireless network and a further secondary wireless network for a number of wireless devices. The first wireless network is a private home WLAN while the second wireless network is a guest network or a hotspot network. To prevent secondary network users impacting the performance of the first network, the access point monitors the devices connected to the first network and adjusts the advertised minimum supportable rate on the second network. 1. A method of operating a wireless access point device having a wireless network interface configured to generate a primary wireless network for a plurality of wireless client devices , and a secondary wireless network , the method comprising a wireless network controller performing a method comprising:accessing a set of connection speed data rate values relating to a current connection speed of each of the plurality of wireless client devices to the primary wireless network;identifying a lowest data rate from the set of connection speed data rate values;determining a minimum connection speed value for the secondary wireless network, the minimum connection speed value being dependent on a value of the identified lowest data rate on the primary wireless network; andmodifying the wireless network interface so that, when a request by a further wireless client device to connect to the secondary network is received, a response by the wireless network interface excludes connection data rates which are lower than the determined minimum connection speed value for the secondary wireless network, such that the further wireless client device will only connect to the secondary wireless network if the further wireless client device is able to connect at or above the determined minimum connection speed value.2. A method according to claim 1 , wherein the determination of a minimum connection speed value comprises accessing a lookup table in a data store of the ...

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Номер записи: 74
04-01-2018 дата публикации

Wireless Charging Devicce

Номер: US20180006483A1
Автор: Carr Bryan
Принадлежит:

A wireless charging device for use in charging batteries of electronic device such as a mobile phone, multimedia play devices etc. The wireless charging device includes a transmitter for transmitting signals in the range of Bluetooth® and Wi-Fi and an adaptor for receiving the signals transmitted by the transmitter and converting the signals into electrical signals for charging the battery. The adaptor could be removably plugged into the charging port of electronic devices or the adaptor could be built into the electronic device 1. A wireless charging device comprising:a transmitter configured to wirelessly transmit signals utilizing a wireless technology;an adaptor operably coupled to an electronic device and configured to receive the signals from the transmitter and converting the signals to electrical signals for charging a rechargeable battery of the electronic device.2. The wireless charging device of claim 1 , wherein the wireless technology is Wi-Fi.3. The wireless charging device of claim 1 , wherein the wireless technology utilizes short-wavelength UHF radio waves.4. The wireless charging device of claim 3 , wherein the short-wavelength UHF radio waves are in an ISM band from 2.4 to 2.485 GHz.5. The wireless charging device of claim 1 , wherein the electronic device is one of: a mobile phone and a portable multimedia player.6. The wireless charging device of claim 1 , wherein the adaptor is adapted for removably connecting to a charging port of the electronic device.7. The wireless charging device of claim 1 , wherein the adaptor is built into the electronic device.8. The wireless charging device of claim 1 , wherein the electronic device is configured to detect the wireless charging device over a wireless network and establish a wireless communication with the wireless charging device.9. A method of charging a mobile phone wirelessly comprising steps of:providing a wireless charging device, the wireless charging device comprising a transmitter configured ...

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Номер записи: 75
05-01-2017 дата публикации

BASE STATION AND APPARATUS

Номер: US20170006523A1
Автор: Adachi Hiroyuki, Fujishiro Masato, MITSUI Katsuhiro
Принадлежит: KYOCERA CORPORATION

A base station according to an embodiment comprises: a controller including a memory. The controller is configured to store a list in the memory, the list including at least one or more identifiers of Wireless Local Area Network (WLAN) access points. The controller is further configured to execute a process of receiving first information from a node configured to connect to the WLAN access points. The first information includes at least one ore more identifiers of WLAN access points to be deleted from the list. The controller is further configured to update the list on a basis of the first information. 1. A base station , comprising:a controller including a memory, whereinthe controller is configured to store a list in the memory, the list including at least one identifier of a Wireless Local Area Network (WLAN) access point,the controller is further configured to execute a process of receiving first information from a node configured to connect to the at least one WLAN access point, andthe first information includes at least one identifier of a WLAN access point to be deleted from the list, andthe controller is further configured to update the list on a basis of the first information.2. The base station according to claim 1 , wherein the controller is configured to execute a process of transmitting a list based on the updated list.3. The base station according to claim 1 , wherein the controller is configured to execute a process of sending a response to the received first information claim 1 , to the node.4. The base station according to claim 1 , wherein the controller is configured to execute a process of sending a response to the received first information claim 1 , to the node if the controller refuses updating the list based on the first information claim 1 , and the response indicates that the controller refuse to update the list based on the first information.5. The base station according to claim 1 , wherein the controller is configured to execute a ...

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Номер записи: 76
05-01-2017 дата публикации

Wireless communication device and wireless communication method

Номер: US20170006606A1
Автор: Ryoko Matsuo, Tomoko Adachi
Принадлежит: Toshiba Corp

According to one embodiment, a wireless communication device includes a receiver configured to receive from each of a plurality of other wireless communication devices first information specifying at least one communication resource requested to be allocated; and a transmitter configured to transmit second information specifying at least one communication resource allocated to each of the other wireless communication devices based on the first information. The transmitter is configured to transmit signals via the communication resources specified in the second information and the receiver is configured to receive signals via the communication resources specified in the second information.

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Номер записи: 77
05-01-2017 дата публикации

DATA TRANSMISSION METHOD, USER EQUIPMENT, AND BASE STATION

Номер: US20170006634A1
Автор: Deng Tianle, LUO Haiyan, YAN Yuanyuan
Принадлежит: Huawei Technologies Co., Ltd.

Embodiments of the present invention provide a data transmission method, user equipment, and a base station. The method can include receiving, by user equipment, indication information for stopping transmission sent by a base station, where the indication information for stopping transmission is configured to instruct the user equipment to stop transmitting uplink data for at least one service by through an access point AP of a wireless local area network WLAN. The method can also include stopping, by the user equipment according to the indication information for stopping transmission, transmitting the uplink data for the at least one service through the AP. In this process, the user equipment reduces a data volume of uplink data transmitted through the WLAN, so as to decrease a probability that an uplink data collision occurs in the WLAN, thereby improving service quality. 1. An uplink data transmission method , comprising:receiving, by user equipment, indication information for stopping transmission sent by a base station, wherein the indication information for stopping transmission is configured to instruct the user equipment to stop transmitting uplink data for at least one service through an access point (AP) of a wireless local area network (WLAN); andstopping, by the user equipment according to the indication information for stopping transmission, transmitting the uplink data for the at least one service through the AP.2. The method according to claim 1 , after the receiving claim 1 , by the user equipment claim 1 , indication information for stopping transmission sent by a base station claim 1 , the method further comprising:receiving, by the user equipment, indication information for permitting transmission sent by the base station, wherein the indication information for permitting transmission is configured to instruct the user equipment to transmit the uplink data for the at least one service through the AP; andtransmitting, by the user equipment ...

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Номер записи: 78
05-01-2017 дата публикации

Multi-channel access method and apparatus

Номер: US20170006636A1
Автор: Peter Loc, YI LUO, Yunbo Li
Принадлежит: Huawei Technologies Co Ltd

Embodiments of the present disclosure relate to a multi-channel access method and apparatus. A first device performs data transmission with a second device on a first reserved channel, and the method includes: identifying, by the first device, whether a non-reserved channel except the first reserved channel is in an idle state; triggering, by the first device, a backoff procedure when the non-reserved channel is in the idle state; sending, by the first device, a channel reservation frame on the non-reserved channel after the backoff procedure ends, where the channel reservation frame is used to enable the first device to use the non-reserved channel as a second reserved channel; and performing, by the first device, data transmission with the second device on the first reserved channel and the second reserved channel.

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Номер записи: 79
04-01-2018 дата публикации

Doppler midamble signaling for wireless communications

Номер: US20180006687A1
Автор: Porat Ron
Принадлежит: Avago Technologies General IP (Singapore) Pte. Ltd .

A wireless communication device (alternatively, device, WDEV, etc.) includes at least one processing circuitry configured to support communications with other WDEV(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other WDEV(s) and to generate and process signals for such communications. The wireless communication device is configured to generate an orthogonal frequency division multiplexing (OFDM) packet that includes a preamble followed by data symbol(s) followed by a midamble followed by other data symbol(s). The wireless communication device is also configured to transmit the OFDM packet to another wireless communication device to be processed by the other wireless communication device to perform channel estimation of a wireless communication channel using at least one of the preamble or the midamble. 1. A wireless communication device comprising:a communication interface; and generate an orthogonal frequency division multiplexing (OFDM) packet that includes a preamble followed by a first one or more data symbols followed by a midamble followed by a second one or more data symbols; and', 'transmit the OFDM packet to another wireless communication device to be processed by the another wireless communication device to perform channel estimation of a wireless communication channel between the wireless communication device and the another wireless communication device using at least one of the preamble or the midamble., 'processing circuitry that is coupled to the communication interface, wherein at least one of the communication interface or the processing circuitry configured to2. The wireless communication device of claim 1 , wherein:the preamble includes a first one or more long training fields (LTFs) and the midamble includes a second one or more LTFs;each of the ...

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Номер записи: 80
07-01-2021 дата публикации

MEMORY MANAGEMENT FOR HYBRID AUTOMATIC REPEAT REQUEST (HARQ) IN A WIRELESS LOCAL AREA NETWORK (WLAN)

Номер: US20210006360A1
Автор: Asterjadhi Alfred, Chen Jialing Li, Cherian George, DOAN Dung Ngoc, Patil Abhishek Pramod, Shellhammer Stephen Jay, Tian Bin, VERMA Lochan
Принадлежит:

This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a hybrid automatic repeat request (HARQ) protocol in a wireless local area network (WLAN). In some aspects, a first WLAN device may transmit a first HARQ frame to a second WLAN device. The first WLAN device may receive a first feedback message from the second WLAN device. The first feedback message may be a HARQ Block Acknowledgement (H-BA) message. The first WLAN device may determine to enable the HARQ protocol based on the first feedback message. The first WLAN device may receive an indication of an amount of memory available at the second WLAN device for processing HARQ transmissions. The first WLAN device may transmit a second HARQ frame to the second WLAN device based, at least in part, on the amount of memory available at the second WLAN device for processing HARQ transmissions. 1. A method performed by an apparatus of a first wireless local area network (WLAN) device for implementing a hybrid automatic repeat request (HARQ) protocol , comprising:outputting a first HARQ frame for transmission to a second WLAN device;obtaining a first feedback message from the second WLAN device, the first feedback message indicating whether to enable the HARQ protocol;determining to enable the HARQ protocol based, at least in part, on the first feedback message indicating to enable the HARQ protocol;obtaining an indication of an amount of memory available at the second WLAN device for processing HARQ transmissions; andoutputting a second HARQ frame for transmission to the second WLAN device based, at least in part, on the amount of memory available at the second WLAN device for processing HARQ transmissions.2. The method of claim 1 , wherein the first feedback message obtained from the second WLAN device is a HARQ Block Acknowledgement (H-BA) message.3. The method of claim 1 , wherein the first feedback message includes an indication to ...

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Номер записи: 81
07-01-2021 дата публикации

HYBRID AUTOMATIC REPEAT REQUEST (HARQ) IN A WIRELESS LOCAL AREA NETWORK (WLAN)

Номер: US20210006361A1
Автор: Asterjadhi Alfred, Chen Jialing Li, Cherian George, DOAN Dung Ngoc, Patil Abhishek Pramod, Shellhammer Stephen Jay, Tian Bin, VERMA Lochan
Принадлежит:

This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a hybrid automatic repeat request (HARQ) protocol in a wireless local area network (WLAN). In some aspects, a first WLAN device may transmit a first HARQ frame to a second WLAN device. The first WLAN device may determine whether a first feedback message received from the second WLAN device includes HARQ acknowledgement information or non-HARQ acknowledgment information. The first feedback message may be a HARQ Block Acknowledgement (H-BA) message having a multi-station Block ACK (M-BA) frame format that includes HARQ acknowledgment information. The first WLAN device may transmit a second HARQ frame to the second WLAN device in response to determining the first feedback message includes the HARQ acknowledgment information. The first WLAN device may transmit a non-HARQ frame in response to determining the first feedback message includes non-HARQ acknowledgement information. 1. A method performed by an apparatus of a first wireless local area network (WLAN) device for implementing a hybrid automatic repeat request (HARQ) protocol , comprising:outputting a first HARQ frame for transmission to a second WLAN device;determining whether a first feedback message is obtained from the second WLAN device;responsive to obtaining the first feedback message, determining whether the first feedback message includes HARQ acknowledgement information or non-HARQ acknowledgment information; andoutputting a second HARQ frame for transmission to the second WLAN device in response to determining the first feedback message includes the HARQ acknowledgment information.2. The method of claim 1 , wherein the first feedback message is a HARQ Block Acknowledgement (H-BA) message claim 1 , the H-BA message including the HARQ acknowledgment information claim 1 , and the HARQ acknowledgement information including one or more bitmaps.3. The method of claim 2 , ...

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Номер записи: 82
07-01-2016 дата публикации

PHYSICAL LAYER PROTOCOL DATA UNIT FORMAT IN A HIGH EFFICIENCY WIRELESS LAN

Номер: US20160007342A1
Автор: Seok Yongho
Принадлежит:

The present invention provides a new uplink PPDU frame format to support MU-MIMO and OFDMA, and methods, apparatuses, etc. therefor. In an aspect of the present invention, a method by a STA for transmitting an UL PPDU frame to an AP simultaneously with one or more other STAs in a WLAN may include receiving a frame including a parameter for the PPDU frame from the AP; and participating in UL MU PPDU frame transmission based on the parameter. 1. A method by a Station (STA) for transmitting an Uplink (UL) Physical layer Protocol Data Unit (PPDU) frame to an Access Point (AP) simultaneously with one or more other STAs in a Wireless Local Area Network (WLAN) , the method comprising:receiving a frame including a parameter for the PPDU frame from the AP; andparticipating in an UL Multi-User (MU) PPDU frame transmission based on the parameter.2. The method according to claim 1 , wherein the parameter includes a parameter for a guard interval applied to at least one of a High Efficiency-Long Training Field (HE-LTF) field or a Physical layer Service Data Unit (PSDU) of the PPDU frame claim 1 , andwherein a guard interval applied to a Legacy-Long Training Field (L-LTF) of the PPDU frame is a predefined value.3. The method according to claim 1 , wherein the guard interval applied to the at least one of the HE-LTF field or the PSDU is a guard interval applied to a 256-Fast Fourier Transform (FFT)-based Orthogonal Frequency Division Multiplexing (OFDM) symbol claim 1 , and the guard interval applied to the L-LTF is a guard interval applied to a 64-FFT-based OFDM symbol.4. The method according to claim 2 , wherein a parameter for the guard interval applied to the HE-LTF field and a parameter for the guard interval applied to the PSDU are defined as the same parameter.5. The method according to claim 2 , wherein a parameter for the guard interval applied to the HE-LTF field and a parameter for the guard interval applied to the PSDU are defined as separate parameters.6. The method ...

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Номер записи: 83
07-01-2016 дата публикации

METHOD FOR PERFORMING BACKOFF IN WIRELESS LAN SYSTEM AND APPARATUS THEREFOR

Номер: US20160007379A1
Автор: Seok Yongho
Принадлежит: LG ELECTRONICS INC.

The present invention relates to a wireless communication system, and more particularly to a method for enabling a station (STA) to perform a backoff in a wireless LAN system and an apparatus therefor. In a wireless LAN system according to an embodiment of the present invention, a method for enabling a station (STA) to perform a backoff includes the steps of: performing a first backoff procedure at a first primary channel for a transmission of a data unit having a size of a first channel width; performing a second backoff procedure at a second primary channel for a transmission of a data unit having a size equal to or greater than a second channel width; if a transmission opportunity (TXOP) is permitted as a result of the first backoff procedure, transmitting the data unit having a size of the first channel width; and if a TXOP is permitted as a result of the second backoff procedure, transmitting the data unit having a size equal to or greater than the second channel width. 1. A method for performing backoff by a STAtion (STA) in a Wireless Local Area Network (WLAN) system , the method comprising:performing a first backoff procedure on a first primary channel having a first channel width, for transmission of a data unit having a size equal to the first channel width, and performing a second backoff procedure on a second primary channel having a second channel width, for transmission of a data unit having a size equal to the second channel width;transmitting the data unit having the size equal to the first channel width, if a Transmission Opportunity (TXOP) is allowed as a result of the first backoff procedure; andtransmitting the data unit having the size equal to the second channel width, if a TXOP is allowed as a result of the second backoff procedure.2. The method according to claim 1 , wherein if the TXOP is allowed as a result of the first backoff procedure claim 1 , only the data unit having the size equal to the first channel width is transmitted.3. The ...

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Номер записи: 84
07-01-2016 дата публикации

PROGRAM EXECUTED IN TRANSMITTER, RECEIVER AND PROGRAM EXECUTED IN RECEIVER

Номер: US20160007380A1
Автор: HARA Yukihiro, HASEGAWA Akio, ITO Tetsuya, IWAI Masahito, KIMURA Takatoshi, Yomo Hiroyuki
Принадлежит:

A transmitter generates a header frame having a frame length indicating the beginning of data to be transmitted, data frames having frame lengths representing the data to be transmitted, and an end frame having a frame length indicating the end of the data to be transmitted. Then, for all of the header frame, data frames and end frame, the transmitter executes transmitting the kth frame when the wireless communication space is available, thereby transmitting the header frame, data frames and end frame, one after another, in accordance with the CSMA/CA scheme. 1. A non-transitory computer-readable medium including a program for causing a computer to execute a method of transmitting radio frames in a transmitter , the method comprising:a first step in which a generating circuitry generates a first radio frame having a frame length representing header information of data to be transmitted and a second radio frame having a frame length representing the data to be transmitted; anda second step in which a transmitting circuitry transmits the first radio frame and the second radio frame one after another in accordance with a wireless communication scheme to transmit a radio frame when a wireless communication space is available and to wait to transmit a radio frame when the wireless communication space is not available.2. The non-transitory computer-readable medium including the program according to claim 1 , wherein:in the first step, the generating circuitry further generates a third radio frame having a frame length indicating an end of the data to be transmitted, andin the second step, the transmitting circuitry transmits the third radio frame following the second radio frame in accordance with the radio communication scheme.3. The non-transitory computer-readable medium including the program according to claim 2 , wherein at least one of the first and third radio frames includes one or more frames having one or more frame lengths.4. The non-transitory computer- ...

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Номер записи: 85
07-01-2016 дата публикации

COMMUNICATION APPARATUS, CONTROL METHOD THEREOF, AND PROGRAM

Номер: US20160007397A1
Автор: Fujita Shunji
Принадлежит:

A communication apparatus capable of transmitting data to an external device transmits transmission data-related information relating to data to be transmitted to the external device before joining a wireless network, receives a response from the external device after the transmission data-related information has been transmitted, joins a wireless network after the response has been received, and, after joining a wireless network, establishes communication with the external device so that data can be transmitted, and first information is transmitted as the transmission data-related information before the transmission data to be transmitted to the external device is determined. 1. A communication apparatus capable of transmitting data to an external device , comprising:a transmitting unit configured to transmit transmission data-related information relating to data to be transmitted to the external device before joining a wireless network;a receiving unit configured to receive a response from the external device after the transmission data-related information has been transmitted by the transmitting unit;a network joining unit configured to, after the response has been received by the receiving unit, join a wireless network; anda communication unit configured to, after the joining unit has joined a wireless network, establish communication with the external device so that data can be transmitted, wherein the transmitting unit is configured to transmit first information as the transmission data-related information before the transmission data to be transmitted to the external device is determined.2. The communication apparatus according to claim 1 , wherein the transmission data-related information is required to establish communication with the external device by the communication unit.3. The communication apparatus according to claim 1 , wherein the transmission data-related information is temporary information that exists before the transmission data to be ...

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Номер записи: 86
02-01-2020 дата публикации

Dynamic Switching Between SU-MIMO and MU-MIMO Transmission

Номер: US20200007199A1
Автор: Boodannavar Veerendra, Borges Daniel R., Li Guoqing, Vallath Sreevalsan, Wang Ping
Принадлежит: Apple Inc.

Disclosed herein are system, method, and computer program product embodiments for indicating a preference to receive a single-user multiple input multiple output (SU-MIMO) or multi-user multiple input multiple output (MU-MIMO) transmission from an access point (AP). Embodiments include generating a standard action frame that contains an action field that species a preference to receive a SU-MIMO or MU-MIMO transmission from the AP. A station (STA) can transmit the generated action frame to the AP. The STA can receive an acknowledgement frame from the AP that indicates the AP is configured to use the requested transmission method. The STA can then receive data from the AP using the requested transmission method. 1. A computer implemented method for indicating , by a station , a preference to receive a single-user multiple input multiple output (SU-MIMO) transmission from an access point (AP) , comprising:generating, by the station, an Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard compliant action frame, wherein the IEEE 802.11 standard compliant action frame comprises a IEEE 802.11 standard compliant action field that specifies a preference request to receive the SU-MIMO transmission from the AP;transmitting, by the station, the IEEE 802.11 standard compliant action frame to the AP;receiving, by the station, an acknowledgement frame from the AP, wherein the acknowledgement frame indicates the AP is configured to transmit the SU-MIMO transmission to the station; andreceiving, by the station, data from the AP via the SU-MIMO transmission.2. (canceled)3. The method of claim 1 , wherein the IEEE 802.11 standard compliant action frame is specified as a vender specific action frame based at least in part on a category field in the IEEE 802.11 standard compliant action frame.4. The method of claim 1 , wherein the IEEE 802.11 standard compliant action field comprises an organization identifier field and a multi-user (MU) toggle field claim 1 , and ...

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Номер записи: 87
02-01-2020 дата публикации

TRANSMISSION FRAME COUNTER

Номер: US20200007276A1
Автор: Hu Wei, Kholaif Ahmad
Принадлежит:

An apparatus may comprise a processing resource operatively coupled to a memory resource and a frame determination component operatively coupled to the processing resource and the memory resource. The frame determination component may cause a counter corresponding to a particular station associated to the apparatus to be stored in the memory resource, the counter to be incremented in response to receipt of a transmission frame containing an invalid starting sequence number (SEN) and a deauthentication frame to be transmitted in response to receipt of a threshold number of transmission frames containing the invalid. 1. An apparatus , comprising:a processing resource operatively coupled to a memory resource; a counter corresponding to a particular station (STA) associated to the apparatus to be stored in the memory resource, the counter to be incremented in response to receipt of a transmission frame containing an invalid starting sequence number (SEN), and', 'a deauthentication frame to be transmitted in response to receipt of a threshold number of transmission frames containing the invalid SEN., 'a frame determination component operatively coupled to the processing resource and the memory resource, wherein the frame determination component is to cause2. The apparatus of claim 1 , wherein the frame determination component is to cause a block acknowledgement request to be transmitted in response to receipt of the threshold number of transmission frames containing the invalid SEN.3. The apparatus of claim 2 , wherein the frame determination component is to cause the counter stored by the memory resource to refrain from being incremented in response to receipt of a transmission frame containing a valid SEN subsequent to transmission of the block acknowledgement.4. The apparatus of claim 2 , wherein the frame determination component is to cause the counter stored by the memory resource to be incremented in response to receipt of a transmission frame containing the ...

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Номер записи: 88
07-01-2021 дата публикации

TRANSMISSION SPEED TESTING OF A WIRELESS LOCAL NETWORK

Номер: US20210006992A1
Автор: Bond Brian E., Keaton William J., Moore David J.
Принадлежит: CENTURYLINK INTELLECTUAL PROPERTY LLC

A wireless testing system is provided that testing transmission speeds associated with a WLAN or other wireless network. In one instance, a network transmission between a device in a telecommunications network and a modem be measured and initiated via an application executed on a mobile device. One or more Wi-Fi speed tests may also be performed to determine a transmission speed between a wireless device associated with the premises and the modem of the WLAN. To conduct the Wi-Fi speed test, a mobile device (such as the mobile device executing the application) may transmit, in some instances in response to an input to the mobile device, an instruction to the test controller to conduct the Wi-Fi speed test. The measured transmission speeds may be controlled by a controller that may store the speed test results in a network repository available to the mobile device. 1. A system for testing a network performance , the system comprising:a testing controller controlling a testing device to communicate with a server of a telecommunications network and measure an associated transmission speed of network test communications received at the testing device during a transmission speed test of the testing device and from the server via a wireless broadcasting device, the transmission speed test initiated in response to test initiation commands transmitted to the testing controller via a mobile device, wherein the mobile device receives the measure of the associated network transmission speed of the test communications for display on a display device associated with the mobile device.2. The system of claim 1 , wherein the testing controller claim 1 , in response to a wireless speed test initiation command from the mobile device claim 1 , configures the testing device to transmit wireless test communications to the mobile device via the wireless broadcasting device.3. The system of claim 2 , wherein the mobile device further executes a wireless test client application to receive ...

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Номер записи: 89
07-01-2021 дата публикации

Hardware-Friendly HARQ Operations In WLAN

Номер: US20210007007A1
Автор: Hsu YungPing, JR. Thomas Edward, Liu Jianhan, Lu Kai Ying, PARE, Seok Yongho
Принадлежит:

A first apparatus generates a first hybrid automatic repeat request (HARQ) packet and a second HARQ packet based at least in part on one or more capabilities of a second apparatus. The first apparatus sequentially transmits the first HARQ packet and the second HARQ packet to the second apparatus. In response, the first apparatus receives a delayed acknowledgement form the second apparatus after transmitting the second HARQ packet. 1. A method , comprising:generating, by a processor of a first apparatus, a first hybrid automatic repeat request (HARQ) packet based at least in part on one or more capabilities of a second apparatus; andtransmitting, by the processor, the first HARQ packet to the second apparatus.2. The method of claim 1 , wherein the generating of the first HARQ packet based at least in part on the one or more capabilities of the second apparatus comprises generating the first HARQ packet based on at least one of:one or more HARQ processing capabilities at a physical (PHY) layer of the second apparatus;one or more HARQ processing capabilities at a medium access control (MAC) layer of the second apparatus;one or more codewords for HARQ retransmission;one or more MAC protocol data units (MPDUs) for HARQ retransmission; andone or more new MPDUs for initial transmission.3. The method of claim 1 , wherein the generating of the first HARQ packet comprises:selecting a type of HARQ and a type of HARQ padding and extension corresponding to the first HARQ packet; andgenerating the first HARQ packet with an indication of the selected type of HARQ and the selected type of HARQ padding and extension.4. The method of claim 3 , wherein the selecting of the type of HARQ and the type of HARQ padding and extension comprises selecting the type of HARQ and the type of HARQ padding and extension based on HARQ feedbacks and one or more HARQ capabilities of the second apparatus.5. The method of claim 4 , wherein the HARQ feedbacks comprise a required amount of HARQ ...

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Номер записи: 90
07-01-2021 дата публикации

BASIC SERVICE SET COLOR-BASED EFFECTIVE ISOTROPIC RADIATED POWER ASSIGNMENT FOR ENTERPRISE NETWORKS

Номер: US20210007121A1
Автор: Ganu Sachin, Hahn Dongwoon, PATWARDHAN Gaurav, Perahia Eldad
Принадлежит:

Methods for assigning effective isotopic radiated power to an access point in a wireless network are provided. In one aspect, a method includes determining weights for neighboring access points in a wireless network based on channel frequency and basic service set color assignments. For a particular access point, a first path loss based on the determined weights and a second path loss based on the neighboring access points are calculated. First and second effective isotopic radiated power values are calculated based on the respective first and second path losses. The effective isotopic radiated power of the particular access point is adjusted based on the lower of the first and second calculated effective isotopic radiated power values. Systems and machine-readable media are also provided. 1. A method comprising:determining, by a network device, a weight for each neighboring access point of a plurality of neighboring access points in a radio frequency neighborhood of a particular access point based on at least a channel frequency and a basic service set color of the plurality of neighboring access points in the radio frequency neighborhood of the particular access point;calculating, by the network device, a first path loss from the plurality of neighboring access points based on the weights of one or more neighboring access points of the plurality of neighboring access points;calculating, by the network device, a second path loss from the plurality of neighboring access points;calculating, by the network device, a first effective isotopic radiated power based on the first path loss;calculating, by the network device, a second effective isotopic radiated power based on the second path loss; andadjusting, by the network device, the effective isotopic radiated power associated with the particular access point based on a lower value between the first effective isotopic radiated power and the second effective isotopic radiated power.2. The method of claim 1 , wherein the ...

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Номер записи: 91
04-01-2018 дата публикации

INFORMATION PROCESSING DEVICE, COMMUNICATION SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM

Номер: US20180007633A1
Автор: MORI Masahito, Morioka Yuichi
Принадлежит: SONY CORPORATION

An information processing device including a wireless communication section and a control section. The wireless communication section of the information processing device communicates wirelessly with another information processing device using one or multiple channels. The control section of the information processing device performs control to notify the other information processing device of channel information for identifying a channel for use in the wireless communication with the other information processing device using one or multiple channels. Thereby, channels for use in wireless communication can be set appropriately. 1. An information processing device comprising:a wireless communication section configured to communicate wirelessly with another information processing device using one or a plurality of channels; anda control section configured to perform control to notify the other information processing device of channel information for identifying a channel for use in the wireless communication.2. The information processing device according to claim 1 , wherein the wireless communication section performs the wireless communication with the other information processing device using channel bonding under the IEEE 802.11 standard.3. The information processing device according to claim 1 , wherein the control section performs control to transmit a request-to-send frame including the channel information.4. The information processing device according to claim 3 , wherein the control section performs control to transmit the request-to-send frame on the channel identified by the channel information.5. The information processing device according to claim 4 , wherein the control section performs control to use for the wireless communication a channel used for receiving a clear-to-send frame with regard to the request-to-send frame.6. The information processing device according to claim 1 , wherein the control section performs control to transmit a clear-to-send ...

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Номер записи: 92
04-01-2018 дата публикации

Systems And Methods For Switched Protocol Wireless Connection

Номер: US20180007634A1
Автор: Pereira Vitor M.
Принадлежит:

Systems and methods are provided that may be implemented to selectively enable relatively higher data throughput and higher power WiFi bidirectional wireless protocol capability during times of system wireless activity, and to selectively disable the WiFi bidirectional wireless protocol and enable relatively lower data throughput and lower power wireless protocol capability during the absence of such system wireless activity. The systems and methods may be implemented to enable bi-directional wireless communication and/or external activation of a wireless device both during times of wireless device activity and during times in which wireless device activity is absent and/or a wireless device is inactive and not transmitting. 1. A wireless system , comprising:at least one antenna;at least one bidirectional wireless data communication path coupled to the antenna; and execute at least one application to perform at least one intermittent or periodic activity to produce the output data,', 'selectively enable a bidirectional IEEE 802.11-based WiFi first wireless communication protocol to transmit the produced output data to one or more external wireless devices using the WiFi first wireless communication protocol, and', 'then selectively disable the WiFi first wireless communication protocol after transmitting the produced output data while using a second and different bidirectional wireless communication protocol that consumes relatively less operating power than does the WiFi first wireless communication protocol to communicate with one or more external wireless devices while the WiFi first wireless communication protocol is disabled., 'at least one processor or programmable logic device (PLD) coupled to provide output data to the at least one bidirectional wireless data communication path, the at least one processor or PLD being configured to2. The wireless system of claim 1 , where the second and different bidirectional wireless communication protocol is a Bluetooth ...

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Номер записи: 93
04-01-2018 дата публикации

DATA TRANSMISSION METHOD IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

Номер: US20180007661A1
Автор: Cho Hangyu, Chun Jinyoung, Lee Wookbong, Ryu Kiseon
Принадлежит: LG ELECTRONICS INC.

Disclosed is an uplink (UL) multi-user (MU) transmission method of a station (STA) in a wireless LAN (WLAN) system. An UL MU transmission method of an STA in a WLAN system according to an embodiment of the present invention includes receiving a trigger frame including resource unit allocation information for orthogonal frequency division multiple access (OFDMA) transmission, sending an UL MU physical protocol data unit (PPDU) based on the resource unit allocation information, and receiving an ACK frame for the UL MU PPDU. 1. An uplink (UL) multi-user (MU) reception method of a station (STA) in a wireless LAN (WLAN) system , the UL MU reception method comprising:sending a trigger frame indicative of UL MU data transmission using an orthogonal frequency division multiple access (OFDMA) scheme;receiving an UL MU physical protocol data unit (PPDU) based on the trigger frame; andsending an ACK frame for the UL MU PPDU,wherein a physical (PHY) preamble of the trigger frame comprises an SIG-C field which carries resource allocation information for the UL MU PPDUs.2. The UL MU reception method of claim 1 , wherein the PHY preamble comprises trigger information indication information indicative of whether the SIG-C field is present.3. The UL MU reception method of claim 2 , wherein:the trigger frame is a null data packet (NDP) frame, andPPDU length information included in the PHY preamble is set to 0.4. An uplink (UL) multi-user (MU) transmission method of a station (STA) in a wireless LAN (WLAN) system claim 2 , the UL MU transmission method comprising:receiving a trigger frame comprising resource unit allocation information for orthogonal frequency division multiple access (OFDMA) transmission;sending an UL MU physical protocol data unit (PPDU) based on the resource unit allocation information; andreceiving an ACK frame for the UL MU PPDU,wherein a physical (PHY) preamble of the UL MU PPDU comprises an SIG-C field which carries transmission parameter information.5. The UL ...

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Номер записи: 94
04-01-2018 дата публикации

ADAPTIVE ANTENNA FOR CHANNEL SELECTION MANAGEMENT IN COMMUNICATIONS SYSTEMS

Номер: US20180007703A1
Автор: Desclos Laurent, Pajona Olivier
Принадлежит: ETHERTRONICS, INC.

The disclosure concerns a communication system where adaptive antenna systems with algorithm are used to provide improved channel selection management in Wireless Local Area Network (WLAN) and other multi-node communication systems. The adaptive antenna systems can be integrated into multiple nodes of a communication network, such as access points used in WLAN, and multiple radiation modes generated and tracked to determine optimal mode for access point to client communication links to assist in channel selection across the nodes in the network. Adaptive antenna system modes are selected and Signal to Noise Ratio (SNR) is measured across available frequency channels to determine channels to assign per access point along with radiation modes to be implemented that results in improved SNR for the communication links established in the network. 1. A network communication system for servicing wireless communication links between each of a plurality of client devices and a network , respectively , the network communication system comprising:a first access point,a second access point, anda network controller;the first access point comprising an adaptive antenna system associated therewith, the adaptive antenna system being configurable in one of a plurality of possible modes, wherein the adaptive antenna system exhibits a distinct radiation pattern when configured in each of the plurality of possible modes; and with the first access point, surveying each of the plurality of client devices available for communication with the network,', 'configuring the adaptive antenna system of the first access point in each of the plurality of possible modes thereof, and for each mode, measuring a channel quality indicator (CQI) associated with the adaptive antenna system of the first access point and each of the plurality of client devices,', 'storing, on the network, antenna mode data corresponding to each mode, device, and channel quality indicator of the adaptive antenna system as- ...

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Номер записи: 95
04-01-2018 дата публикации

TERMINAL APPARATUS AND BASE STATION APPARATUS

Номер: US20180007714A1
Автор: Onodera Takashi, Tomeba Hiromichi, YOSHIMURA Tomoki
Принадлежит:

A CCA level is made to be variable efficiently while maintaining the fairness relating to acquisition of a transmission opportunity by wireless terminal apparatuses, and thus efficiency of a radio resource is improved. Provided is a terminal apparatus that performs wireless communication with a base station apparatus, and includes; a MAC frame categorization unit categorizing MAC frames, in each of which media access control header is attached to transmission data, based on a type of MAC frame; and a QoS control unit performing a carrier sense using a first CCA level, in a case where the MAC frame is included in a first category that results from the categorization by the MAC frame categorization unit, and performing the carrier sense using a second CCA level different from the first CCA level, in a case where the MAC frame is included in a second category different from the first category. 110-. (canceled)11. A first terminal apparatus that communicates with a second terminal apparatus , the first terminal apparatus comprising:a CCA unit that determines whether a radio resource is idle or busy, using a carrier sense; anda transmission unit that transmits a frame,wherein the transmission unit transmits the frame which includes MAC (Media Access Control) data including information associated with QoS (Quality of Service) and first information associated with the carrier sense.12. The first terminal apparatus according to claim 11 ,wherein the information associated with QoS is information indicating an access category.13. The first terminal apparatus according to claim 12 ,wherein the first information associated with the carrier sense is threshold information of the carrier sense.14. The first terminal apparatus according to claim 13 ,wherein the frame includes a PHY (Physical) header including second information associated with the carrier sense.15. The first terminal apparatus according to claim 14 ,wherein the threshold information of the carrier sense is ...

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Номер записи: 96
03-01-2019 дата публикации

Wireless Network Enhancements Via Inductance Loops As Antennas

Номер: US20190007785A1
Автор: Kreiner Barrett, Schaub Ryan, Shively Robert
Принадлежит:

Concepts and technologies disclosed herein are directed to wireless network enhancements via inductance loops as antennas. According to one aspect disclosed herein, a roadside system can measure inductance of an inductance loop associated with a road. The roadside system can determine whether the inductance of the inductance loop is greater than a baseline. If the inductance of the inductance loop is greater than the baseline, the roadside system can determine that a vehicle is positioned over the inductance loop and can utilize the inductance loop to activate a roadside area network. The roadside system can connect a user device to the roadside system via the roadside area network. The roadside system can include a connection to a network via a backhaul to enable communication between the user device and the network. 1. A roadside system comprising:a processor; and measuring, via a meter, inductance of an inductance loop associated with a road,', 'determining whether the inductance of the inductance loop is greater than a baseline, and', 'in response to determining that the inductance of the inductance loop is greater than the baseline, determining that a vehicle is positioned over the inductance loop, and utilizing the inductance loop to activate a roadside area network., 'memory having computer-executable instructions stored thereon that, when executed by the processor, cause the processor to perform operations comprising'}2. The roadside system of claim 1 , wherein the operations further comprise connecting a user device to the roadside system via the roadside area network.3. The roadside system of claim 2 , further comprising a connection to a network via a backhaul; and wherein the operations further comprise enabling communication between the user device and the network via the backhaul.4. The roadside system of claim 3 , wherein the network comprises a wireless wide area network.5. The roadside system of claim 4 , wherein the roadside area network comprises ...

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Номер записи: 97
03-01-2019 дата публикации

OPERATION METHOD IN WIRELESS LAN SYSTEM, AND APPARATUS FOR SAME

Номер: US20190007964A1
Автор: Cho Hangyu, JO Kyungtae, Kim Jinmin, PARK Sungjin
Принадлежит: LG ELECTRONICS INC.

The present specification relates to an operational configuration of a station and an access point in a wireless LAN (WLAN) system. More specifically, the present specification suggests a method for a station or an access point to operate in a case where at least one channel is dynamically allocated during a data transmission interval (DTI) in a wireless LAN system, and an apparatus for the same. 120-. (canceled)21. A method for transmitting data by a station , STA , in a wireless local area network , WLAN , system , the method comprising:receiving a grant frame for dynamically allocating a first allocation period within a data transmission interval, DTI, from an access point, AP, during the DTI,wherein the grant frame comprises dynamic allocation information for, during the first allocation period, allocating either a plurality of channels including a first primary channel or at least one channel except the first primary channel; andtransmitting data in the first allocation period through either the plurality of channels including the primary channel or at least one channel except the first primary channel allocated by the dynamic allocation information.22. The method of claim 21 , wherein when at least one channel except the first primary channel is allocated in the first allocation period claim 21 , the dynamic allocation information further comprises information indicating a second primary channel that operates as a primary channel during the first allocation period.23. The method of claim 21 , wherein when at least one channel except the first primary channel is allocated in the first allocation period claim 21 , the STA performs at least one of a backoff procedure through the second primary channel during the first allocation period and network allocation vector claim 21 , NAV claim 21 , configuration.24. The method of claim 21 , wherein the grant frame is transmitted during a grant period claim 21 , GP.25. The method of claim 21 , wherein the grant frame ...

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Номер записи: 98
03-01-2019 дата публикации

TERMINAL DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT

Номер: US20190007971A1
Автор: Hamaguchi Yasuhiro, Tomeba Hiromichi, YOSHIMURA Tomoki
Принадлежит: SHARP KABUSHIKI KAISHA

A terminal device decreases degradation of communication performance that is caused by interference and increases in the case that a CCA level is increased. The terminal device communicating with a base station apparatus includes a transmitting unit that transmits a frame, a transmission burst length setting unit that modifies a transmission burst length of the frame, and a carrier sense unit that performs carrier sensing before the frame is transmitted. The transmission burst length is different depending on whether a threshold value for the carrier sensing is configured to a first value or a second value. 1. A terminal device communicating with a base station device , comprising:a transmitting unit that transmits a frame,a transmission burst length setting unit that modifies a transmission burst length of the frame, anda carrier sense unit that performs carrier sensing before the frame is transmitted,wherein the transmission burst length of the frame is a first value when the carrier sensing with a first threshold is performed before the frame is transmitted and the transmission burst length of the frame is a second value when the carrier sensing with a second threshold is performed before the frame is transmitted.2. The terminal device according to claim 1 ,wherein the transmission bust length is related to a number of OFDM symbols.37-. (canceled)8. A communication method of a terminal device claim 1 , comprising:a step of transmitting a frame,a step of modifying a transmission burst length of the frame, anda step of performing carrier sensing before the frame is transmitted,wherein the transmission burst length of the frame is a first value when the carrier sensing with a first threshold is performed before the frame is transmitted and the transmission burst length of the frame is a second value when the carrier sensing with a second threshold is performed before the frame is transmitted.9. An integrated circuit mounted on a terminal apparatus claim 1 , ...

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Номер записи: 99
08-01-2015 дата публикации

METHOD, APPARATUS AND NETWORK SYSTEM FOR CONTROLLING NETWORK CONGESTION

Номер: US20150009814A1
Автор: CHEN CHEN, Hao Shuai, WU Tianyu
Принадлежит:

The invention provides a method, an apparatus and a system for controlling network congestion. The method includes: sending a control frame or a beacon frame to a station in a network when network congestion occurs, so as to instruct the station to enlarge a contention window when the station needs to send data. The method can achieve the congestion control for a network before collision occurs to a station, avoiding more serious network congestion caused by each station still contending for a channel after the network congestion occurs; since an access point can send a control frame or a beacon frame to the station when determining that congestion occurs to the current network, to instruct the station which needs to send data to re-determine a backoff time, a rapidly congestion relief of the whole network is achieved, and also a fair channel contention of each station is guaranteed. 1. A method for controlling network congestion , comprising:sending a control frame or a beacon frame to a station in a network when network congestion occurs, so as to instruct the station to enlarge a contention window when the station needs to send data, the control frame or the beacon frame comprises an instruction field which is used to instruct the station to enlarge the contention window when the station needs to send data.2. The method according to claim 1 , wherein claim 1 , if the sending a control frame or a beacon frame to a station in a network is to broadcast the control frame or the beacon frame to all stations in the network claim 1 , then the control frame or the beacon frame further comprises a window field with a value of h;{'sub': cw', 'min', 'min, 'the instructing the station to enlarge a contention window when the station needs to send data comprises: instructing all the stations in the network to enlarge contention windows of all the stations to a product of hand CWwhen the stations need to send data, the CWis a minimum value of the contention window.'}3. The ...

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Номер записи: 100