Buffer status report signaling both buffered uplink traffic and buffered direct link traffic

Improved r-TWT-based communication methods for P2P stream

A method comprising, at an access point (AP) of a basic service set (BSS), establishing membership of a first peer non-AP station (STA) of the BSS in a restricted Target Wake Time (r-TWT) schedule; determining peer-to-peer (P2P) traffic between the first peer STA and a second peer STA of the BSS and, in response to the determining, notifying the second peer STA about the r-TWT schedule. Notifying the second peer STA about the r-TWT schedule may include establishing membership of the second peer STA in the r-TWT schedule via an unsolicited TWT setup frame transmitted to the second peer STA. The AP may send an invitation to establish a Direct Link communication session between the peer STAs via an unsolicited tunnelled direct link setup (TDLS) discovery frame. A method comprising, at a second peer STA of a BSS, receiving from an AP of the BSS a notification about a r-TWT schedule in which a first peer STA of the BSS has established membership and exchanging, during one or more r-TWT service ...

Method and apparatus for synchronising the apparatuses of a wireless network

The present invention concerns a method of updating a time counter of a user equipment in a wireless network comprising at least one base station and a plurality of user equipment, the method comprising, at the user equipment: receiving a reference frame to signal a reference time point associated with a reference time in a reference system frame; determining a propagation delay with the base station; updating the time counter using the reference time and the determined propagation delay, wherein the determining of the propagation delay is scheduled relatively to the reference time point of the reference system frame. In this way the propagation delay estimation is temporally closer to the reference time point and reference frame and the estimated delay more accurately represents the actual propagation delay when the reference time point occurs.

Method and apparatus for synchronising the apparatuses of a wireless network

The present invention concerns a method of updating a time counter of a user equipment in a wireless network comprising at least one base station and a plurality of user equipment, the method comprising, at the user equipment: receiving a reference frame to signal a reference time point associated with a reference time in a reference system frame; determining a propagation delay with the base station; updating the time counter using the reference time and the determined propagation delay, wherein the determining of the propagation delay is scheduled relatively to the reference time point of the reference system frame. In this way the propagation delay estimation is temporally closer to the reference time point and reference frame and the estimated delay more accurately represents the actual propagation delay when the reference time point occurs.

Methods and systems for reserving a transmission opportunity for a collaborative group, and managing the reserved transmission opportunity

A transmission opportunity (TxOP) is granted for at least one first sub-channel of a composite channel to a plurality of collaborative nodes belonging to a collaborative group in a wireless communication network. A method comprises, at a collaborative node, upon detecting, during the granted transmission opportunity, an end of occupancy of at least one second sub-channel different from said first sub-channel, managing the granted transmission opportunity to widen it to include said second sub-channel so that said managed transmission opportunity is for a widened set of sub channels made up of at least said first sub-channel and said second sub-channel. There is also provided a method for reserving such a transmission opportunity (TXOP) for a plurality of collaborative nodes belonging to a collaborative group in a wireless communication network. An embodiment describes use within a Wireless Local Area Network (WLAN) utilizing Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA ...

Method and system for improving management of reception queues in processing devices handling several types of data

A method for configuring a processing device for receiving data packets of different traffic classes, the processing device comprising reception buffers, reception queues, and processing units, each reception buffer and each reception queue being associated with one traffic class, comprising: generating virtual interface modules, each generated virtual interface module associating a reception buffer with reception queues and being associated with one processing unit, the queues associated with a same reception buffer by a same generated virtual interface module being configured to store packets to be handled by a same interrupt handler. In one embodiment the configured reception queues are associated with a same class. In another embodiment different priorities are associated with the reception queues if they are associated with different classes (figure 8). Reception queues may be organised within a structure and a budget associated with each structure; the budget being unfairly shared ...

Improved r-TWT-based communication methods for P2P stream

A method comprising, at an access point (AP) of a basic service set (BSS), establishing membership of a first peer non-AP station (STA) of the BSS in a restricted Target Wake Time (r-TWT) schedule; determining peer-to-peer (P2P) traffic between the first peer STA and a second peer STA of the BSS and, in response to the determining, notifying the second peer STA about the r-TWT schedule. Notifying the second peer STA about the r-TWT schedule may include establishing membership of the second peer STA in the r-TWT schedule via an unsolicited TWT setup frame transmitted to the second peer STA. The AP may send an invitation to establish a Direct Link communication session between the peer STAs via an unsolicited tunnelled direct link setup (TDLS) discovery frame. A method comprising, at a second peer STA of a BSS, receiving from an AP of the BSS a notification about a r-TWT schedule in which a first peer STA of the BSS has established membership and exchanging, during one or more r-TWT service ...

Methods and systems for reserving a transmission opportunity for a plurality of wireless communication devices belonging to a collaborative group

There are provided methods and systems for reserving a transmission opportunity (TXOP) for a plurality of wireless communication devices belonging to a collaborative group in a wireless communication network comprising a sending node STA1, an addressee node STA2 and other nodes STA3, STA4. A node STA3 detects at least one request control frame (RTS 1210) for initiating a TXOP reservation for the collaborative group, each RTS being sent on a sub-channel 300-1 to 300-4, by the sending node STA1 to the addressee node STA2, the RTS calling for a first response control frame (CTS 1220) from the addressee node STA2. Node STA3 determines, based on said at least one detected RTS and any detected first CTS, a sub-channel belonging to the composite channel on which no first CTS has been sent and sends a second CTS 1230 on said determined second sub-channel to a collaborative node STA4, for exchanging data on it during the TXOP.

Buffer status report signaling both buffered uplink traffic and buffered direct link traffic

An 802.11ax access point, AP, manages a granted transmission opportunity to schedule multi-user uplink and downlink transmissions with non-AP stations. Resource units may also be allocated to non-AP stations for direct link, DiL, transmissions. To efficiently arbitrate between scheduling new MU UL transmissions or DiL transmissions, the AP must know the needs of the non-AP stations. The buffer status report, BSR, either solicited or unsolicited, provides an ACI Bitmap subfield and a Delta TID subfield to signal a number of TIDs for which buffered uplink traffic is declared. The BSR is amended so that these two subfields further signal, in addition to the buffered UL traffic, when there is buffered DiL traffic. Other subfields may provide more information on the amount of buffered DiL traffic.

Controlling time synchronisation in a wireless network

To control time synchronisation in a wireless network, the user equipment (UE) determines synchronisation requirements and, based on these requirements, sends a control message to the base station to control a time synchronisation process between the UE and the base station. In a second aspect of the invention, the base station determines the synchronisation requirements and sends the control message to the UE. The synchronisation requirements include whether synchronisation is required, and whether path delay compensation is required. The control message may be sent in response to receiving a message from a core network entity, and may include a duration time for which the synchronisation process is to be active. The message from the core network entity may enable a Device Side Time Sensitive Network Translator (DS-TT) function associated with the UE. It may also be associated with a PDU session and indicate whether the session is for Time Sensitive Communication (TSC) for a Time Sensitive ...

Controlling time synchronisation in a wireless network

To control time synchronisation in a wireless network, the user equipment (UE) determines synchronisation requirements and, based on these requirements, sends a control message to the base station to control a time synchronisation process between the UE and the base station. In a second aspect of the invention, the base station determines the synchronisation requirements and sends the control message to the UE. The synchronisation requirements include whether synchronisation is required, and whether path delay compensation is required. The control message may be sent in response to receiving a message from a core network entity, and may include a duration time for which the synchronisation process is to be active. The message from the core network entity may enable a Device Side Time Sensitive Network Translator (DS-TT) function associated with the UE. It may also be associated with a PDU session and indicate whether the session is for Time Sensitive Communication (TSC) for a Time Sensitive ...

Method and apparatus for synchronising the apparatuses of a wireless network