Abstract: 802.11be wireless networks implement Low Latency Reliable Service measures to prioritize LLRS traffic over conventional not-LLRS traffic. The AP dynamically defines and modifies LLRS traffic configurations made of concerned traffics and associated QoS, through transmission of management frames to the non-AP stations. The AP guarantees the declared QoS applicable to each type of declared traffic profile by scheduling appropriate resources to the LLRS traffic configurations. A monitoring of a correct use of the scheduled resources by the non-AP stations helps avoiding abuses. Plural LLRS traffic configurations can be defined simultaneously within the same frame, using sequential listing or inheritance scheme.

Abstract: The present invention relates to a method for generating control signals for an image capture device, the method being performed in a communication device comprising a first slave time generator and a second slave time generator, the communication device being connected to a first remote time server and a second remote time server, the method comprising: synchronizing the first slave time generator with the first remote time server; synchronizing the second slave time generator with the second remote time server; generating a first control signal based on the first clock, and sending the first control signal to the image capture device; and upon detecting a loss of synchronization between the first slave time generator and the first remote time server, generating a second control signal based on the second clock, and sending the second control signal to the image capture device.

Abstract: In an 802.11ax network with an access point, a trigger frame offers scheduled and random resource units to nodes for data uplink communication to the access point. To avoid the overall energy level seen by legacy nodes for a communication channel to drop below a detection threshold, the invention provides two tools. First, the scheduled and random resource units may be interleaved over communication channels. Second, unused resource units may be detected, and a node or the access point may send a padding signal on them to increase the overall energy level. The latter may be evaluated during a monitoring period before deciding to emit the signal. As the overall energy level seen by legacy nodes is increased, the risk that such legacy nodes do not detect activity on a 20 MHz channel having only a subpart of its RUs used is reduced. And risks of collisions are consequently reduced.

Abstract: In 802.11ax networks with access points, a trigger frame offers scheduled and random resource units to nodes for data uplink communication to the access points. To make more effective the usage of the network, the access point may design the trigger frame to force the nodes to send some categories of data. Resource units may be defined in trigger frames to be dedicated to small packets or to some access category data. Adjusting the time length of the resource units helps restricting the type of data that can be conveyed by the resource units. Also, using various frequency widths for resource units in the same trigger frame helps reducing padding in the resource units when various traffic types coexist.

Abstract: In 802.11ax networks with access points, a trigger frame offers scheduled and random resource units to nodes for data uplink communication to the access points. To make more effective the usage of the network, the access point may design the trigger frame to force the nodes to send some categories of data. Resource units may be defined in trigger frames to be dedicated to small packets or to some access category data. Adjusting the time length of the resource units helps restricting the type of data that can be conveyed by the resource units. Also, using various frequency widths for resource units in the same trigger frame helps reducing padding in the resource units when various traffic types coexist.

Abstract: The present invention concerns a method of updating a time counter of a user equipment in a wireless network comprising a base station and a plurality of user equipment, the method comprising, at the user equipment: receiving a reference time and an indication for determining a reference time point associated with the reference time; scheduling a determining of a propagation delay relatively to the reference time point; determining a propagation delay with the base station according to the scheduling; and updating the time counter using the reference time and the determined propagation delay.

Abstract: The present invention concerns a method of updating a time counter of one 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 timing advance command from the base station; wherein in response to receiving the timing advance command, updating the time counter using the timing advance command.

Abstract: The invention relates to a method and system for simultaneous transmission of data from two or more wireless communication device during a transmission opportunity otherwise reserved for a single communication device. The invention proposes collaboration among the group of communication devices to reserve a transmission opportunity on a composite channel comprising of a plurality of sub-channels for the entire group and to efficiently manage allocation of the sub-channels for simultaneous data transmission from two or more devices. In the main aspect of the invention, the collaboration takes the form of grouping the sub-channels in the reserved composite channel so as to allow two or more stations to transmit data simultaneously over a contiguous frequency band. The collaboration among the group of communication devices may be in a managed or an ad hoc mode. The invention is particularly relevant to the IEEE 802.11 ac communication standard.

Abstract: 802.11ac networks define an operating band made of an ordered series of 20 MHz channels and authorize a restricted number of possible composite channel configurations to be used for data transmission. A method of transmitting data between a source and a receiver in such a wireless network may comprise, at the source: sending, to the receiver, RTS fames to request reservation of a composite channel, the RTS frames including a flag signalling the source supports transmission over un-authorized composite channels, for instance over sub-channels not contiguous within the operating band; receiving, from the receiver in response to the RTS frames, CTS frames acknowledging reservation of un-authorized composite channel configuration, for instance of non-contiguous sub-channels; and then transmitting, to the receiver, data frames on the reserved sub-channels of the un-authorized configuration, for instance on the reserved non-contiguous sub-channels within the operating band.

Abstract: In an 802.11ax network with an access point, a trigger frame offers scheduled and random resource units to nodes for data uplink communication to the access point. To avoid the overall energy level seen by legacy nodes for a communication channel to drop below a detection threshold, the invention provides two tools. First, the scheduled and random resource units may be interleaved over communication channels. Second, unused resource units may be detected, and a node or the access point may send a padding signal on them to increase the overall energy level. The latter may be evaluated during a monitoring period before deciding to emit the signal. As the overall energy level seen by legacy nodes is increased, the risk that such legacy nodes do not detect activity on a 20 MHz channel having only a subpart of its RUs used is reduced. And risks of collisions are consequently reduced.

Abstract: An access point, AP, is granted a transmission opportunity to schedule multi user transmissions with non-AP stations. The AP can provide resource units to peer stations for direct link transmission, within the TxOP. The DiL resource units are allocated for a duration. However, the duration may not match the peer needs and be too long. It results that bandwidth is lost. To give back the resource unit to the AP, a peer station sends, upon finishing the DiL transmission, a resource releasing frame, such as a QoS Null frame, to the AP over the allocated DiL resource unit. The AP may then reuse the time saved to offer more transmission time to other stations within the TxOP.

Abstract: An 802.11ax access point, AP, manage 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.

Abstract: The invention relates to a method and system for simultaneous transmission of data from two or more wireless communication device during a transmission opportunity otherwise reserved for a single communication device. The invention proposes collaboration among the group of communication devices to reserve a transmission opportunity on a composite channel comprising of a plurality of sub-channels for the entire group and to efficiently manage allocation of the sub-channels for simultaneous data transmission from two or more devices. In the main aspect of the invention, the collaboration takes the form of grouping the sub-channels in the reserved composite channel so as to allow two or more stations to transmit data simultaneously over a contiguous frequency band. The collaboration among the group of communication devices may be in a managed or an ad hoc mode. The invention is particularly relevant to the IEEE 802.11 ac communication standard.

Abstract: 802.11ac networks define an operating band made of an ordered series of 20 MHz channels and authorize a restricted number of possible composite channel configurations to be used for data transmission. A method of transmitting data between a source and a receiver in such a wireless network may comprise, at the source: sending, to the receiver, RTS fames to request reservation of a composite channel, the RTS frames including a flag signalling the source supports transmission over un-authorized composite channels, for instance over sub-channels not contiguous within the operating band; receiving, from the receiver in response to the RTS frames, CTS frames acknowledging reservation of un-authorized composite channel configuration, for instance of non-contiguous sub-channels; and then transmitting, to the receiver, data frames on the reserved sub-channels of the un-authorized configuration, for instance on the reserved non-contiguous sub-channels within the operating band.

Abstract: Aspects of the present disclosure generally relate to multi-user (MU) Peer to Peer (P2P) protocols in wireless networks. A first station (STA) may receiving, from an access point (AP), an allocation of a resource unit (RU) for a peer to peer (P2P) communication; transmit, to a peer second STA, a first frame over a first part of the allocated P2P RU; and receive a second frame transmitted by the second STA over a second part of the P2P RU allocated to the first STA by the AP.

Abstract: The present invention concerns a method of wireless communication between a base station and a user equipment, wherein the method comprises: transmitting, by the base station, a data radio bearer configuration; and transmitting packets according to the data radio bearer configuration between the base station and the user equipment; wherein: the data radio bearer configuration comprises a network coding configuration; and the transmitted packets are transmitted according to the network coding configuration.

Abstract: The present invention concerns a method of wireless communication between a base station and a user equipment, wherein the method comprises: receiving a network coding control element; and controlling the network coding activation or deactivation in response to the reception of the control element.

Abstract: The present invention concerns a method of transmitting over a radio access network to a base station, by a network entity, a radio resource control signalling indicating the capability of a user equipment to perform network coding, wherein the method comprises: detecting by the network entity of a trigger event for signalling to the base station, the network coding capabilities of the user equipment; generating by the network entity a radio resource control signalling message comprising the user equipment network coding capabilities; and transmitting by the network entity of the generated radio resource control signalling message to the base station.

Abstract: In 802.11ax networks with access points, a trigger frame offers scheduled and random resource units to nodes for data uplink communication to the access points. To make more effective the usage of the network, the access point may design the trigger frame to force the nodes to send some categories of data. Resource units may be defined in trigger frames to be dedicated to small packets or to some access category data. Adjusting the time length of the resource units helps restricting the type of data that can be conveyed by the resource units. Also, using various frequency widths for resource units in the same trigger frame helps reducing padding in the resource units when various traffic types coexist.

Abstract: In 802.11ax networks with access points, a trigger frame offers scheduled and random resource units to nodes for data uplink communication to the access points. To make more effective the usage of the network, the access point may design the trigger frame to force the nodes to send some categories of data. Resource units may be defined in trigger frames to be dedicated to small packets or to some access category data. Adjusting the time length of the resource units helps restricting the type of data that can be conveyed by the resource units. Also, using various frequency widths for resource units in the same trigger frame helps reducing padding in the resource units when various traffic types coexist.