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公开(公告)号：US12108451B2
公开(公告)日：2024-10-01
申请号：US17675896
申请日：2022-02-18
发明人： Julien Sevin , Pascal Viger , Patrice Nezou , Stéphane Baron
IPC分类号： H04W74/08 , H04L5/00 , H04W74/00 , H04W74/0816 , H04W84/12
CPC分类号： H04W74/0816 , H04L5/001 , H04L5/0037 , H04W74/006 , H04W84/12
摘要： The invention provides multi-user communication in a MU Uplink transmission opportunity in case of a multi-BSS environment of a wireless network. Resource units with AID=0 or 2045 are available for stations to transmit data to addressee virtual access points (VAPs) other than the VAP having initiated the TXOP. The initiating VAP receiving frames from the resources forwards them to the appropriate addressee VAPs within the same physical AP. Responses may be provided by the addressee VAPs directly to the stations or via the initiating VAP or the representative VAP. This approach increases the opportunities for the stations to access the medium in case of multiple BSSs. Better usage of the MU Uplink OFDMA transmission is also made.
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公开(公告)号：US12048001B2
公开(公告)日：2024-07-23
申请号：US17436967
申请日：2020-03-06
发明人： Pascal Viger , Stéphane Baron , Patrice Nezou
摘要： A communication method in a communication device includes storing a first type of data and a second type of data belonging to a same access category defined by IEEE802.11 series, contending for access according to an enhanced distributed channel access, EDCA, using first EDCA parameters, to a communication channel in order to transmit the first type of data to another communication device; and contending for access according to the EDCA, using second EDCA parameters different from the first EDCA parameters, to the communication channel in order to transmit the second type of data to the other communication device.
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公开(公告)号：US11844081B2
公开(公告)日：2023-12-12
申请号：US17384186
申请日：2021-07-23
发明人： Patrice Nezou , Stéphane Baron , Pascal Viger
IPC分类号： H04L5/00 , H04W72/21 , H04L1/1607 , H04W74/08
CPC分类号： H04W72/21 , H04L1/1685 , H04L5/0094 , H04W74/0833
摘要： The present invention provides a new trigger frame dedicated to NDP feedback procedure. This NDP feedback trigger frame comprises a specific field allowing stations (non-AP nodes) receiving this trigger frame to identify it as being a dedicated NDP feedback trigger frame. Thanks to this specific field, a receiving station knows that a NDP feedback procedure has started and that a NDP feedback is expected by the access point. The present invention also provides for communication methods using this NDP feedback trigger frame, communication device station and access point configured to implement these methods, and also a wireless communication network comprising such devices.
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4.发明授权公开(公告)号：US11665676B2
公开(公告)日：2023-05-30
申请号：US17816971
申请日：2022-08-02
发明人： Patrice Nezou , Pascal Viger , Stéphane Baron , Julien Sevin
IPC分类号： H04W72/04 , H04W72/12 , H04W74/08 , H04W84/12 , H04W72/0446 , H04W72/21 , H04W72/23 , H04W72/50
CPC分类号： H04W72/0446 , H04W72/21 , H04W72/23 , H04W72/535 , H04W74/0816 , H04W84/12
摘要： The invention relates to improve use of resource units in MU transmissions of an 802.11ax network. An un-associated station may receive data frames over a downlink resource unit, RU, assigned to an AID, e.g. 2045, reserved for stations not associated with the AP, The AP may use a downlink RU sharing an allocation scheme feature of an uplink RU previously used by the un-associated station. The AP may also aggregated data frames addressed to several stations within the same downlink RU, for instance to acknowledge frames previously received from the stations. The aggregated data frames may signal which respective response RUs the addressee stations should use for a next multi-user uplink transmission to respond to the AP. These approaches particularly applies to the exchange of management frames for instance to speed up the association procedure of un-associated stations.
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公开(公告)号：US11382134B2
公开(公告)日：2022-07-05
申请号：US16081399
申请日：2017-03-08
发明人： Pascal Viger , Stéphane Baron , Patrice Nezou
摘要： A physical AP manages a plurality of BSSs through VAPs. The AP sends a trigger frame to reserve a TXOP including resource units the nodes access to transmit data during the reserved TXOP. To improve channel utilization, the trigger frame identifies a plurality of groups, nodes of which are allowed to access the resources units to transmit data during the reserved TXOP. Thus, the AP receives, during the reserved TXOP, data from one node of a first group identified in the trigger frame and data from one node (separate from the first one) of a second and separate group identified in the trigger frame. A single access by the AP to the medium is thus required, reducing the channel occupation due to control frames. In some embodiments, the number of trigger frames can be drastically reduce, while offering resource units to several BSSs.
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公开(公告)号：US11089627B2
公开(公告)日：2021-08-10
申请号：US15558140
申请日：2016-03-17
发明人： Pascal Viger , Romain Guignard
摘要： 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.
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公开(公告)号：US11039476B2
公开(公告)日：2021-06-15
申请号：US16847103
申请日：2020-04-13
发明人： Patrice Nezou , Stéphane Baron , Romain Guignard , Pascal Viger
摘要： In an 802.11ax network with an access point, a trigger frame offers random resource units to nodes for data uplink communication to the access point. To dynamically adapt the contention mechanism used by the nodes to access the random resource units, the AP updates a correcting TBD parameter at each new TXOP and includes the updated adjusting parameter in the trigger frame for the next TXOP. The nodes use the TBD parameter to generate a local random RU backoff value from a contention window range, for contending for access to the random resource units. The TBD parameter may directly impact the contention window size CWO or boundaries values of a selection range from which CWO is selected.
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公开(公告)号：US10028306B2
公开(公告)日：2018-07-17
申请号：US14837126
申请日：2015-08-27
发明人： Stéphane Baron , Romain Guignard , Pascal Viger
IPC分类号： H04W74/08
摘要： The invention relates to a communication device and a method of sending data over a communication network. The communication device includes a controller for accessing the network using contention type access mechanism based on computation of back-off values, and includes a plurality of traffic queues for serving data traffic at different priorities. The controller includes a plurality of back-off engines, each associated with one traffic queue and configured to compute a back-off value in accordance with the priority of the associated traffic queue. One or more back-off engine may be adjusted to prevent the back-off value of such back-off engine to reach zero. When an access to the network is obtained for the device. a traffic queue may be selected based on its associated back-off value, and data may be transmitted from the selected traffic queue.
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9.发明授权公开(公告)号：US11924814B2
公开(公告)日：2024-03-05
申请号：US18302688
申请日：2023-04-18
发明人： Patrice Nezou , Pascal Viger , Stéphane Baron , Julien Sevin
IPC分类号： H04W72/04 , H04W72/0446 , H04W72/12 , H04W72/21 , H04W72/23 , H04W72/50 , H04W74/08 , H04W84/12
CPC分类号： H04W72/0446 , H04W72/21 , H04W72/23 , H04W72/535 , H04W74/0816 , H04W84/12
摘要： The invention relates to improve use of resource units in MU transmissions of an 802.11ax network. An un-associated station may receive data frames over a downlink resource unit, RU, assigned to an AID, e.g. 2045, reserved for stations not associated with the AP, The AP may use a downlink RU sharing an allocation scheme feature of an uplink RU previously used by the un-associated station. The AP may also aggregated data frames addressed to several stations within the same downlink RU, for instance to acknowledge frames previously received from the stations. The aggregated data frames may signal which respective response RUs the addressee stations should use for a next multi-user uplink transmission to respond to the AP. These approaches particularly applies to the exchange of management frames for instance to speed up the association procedure of un-associated stations.
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公开(公告)号：US11818765B2
公开(公告)日：2023-11-14
申请号：US17587951
申请日：2022-01-28
发明人： Pascal Viger , Stéphane Baron , Patrice Nezou
IPC分类号： H04W74/08 , H04W72/0446 , H04W72/121
CPC分类号： H04W74/0833 , H04W72/0446 , H04W72/121
摘要： A physical AP manages a plurality of BSSs through VAPs. The AP sends a trigger frame to reserve a TXOP including resource units the nodes access to transmit data during the reserved TXOP. To improve channel utilization, the trigger frame identifies a plurality of groups, nodes of which are allowed to access the resources units to transmit data during the reserved TXOP. Thus, the AP receives, during the reserved TXOP, data from one node of a first group identified in the trigger frame and data from one node (separate from the first one) of a second and separate group identified in the trigger frame. A single access by the AP to the medium is thus required, reducing the channel occupation due to control frames. In some embodiments, the number of trigger frames can be drastically reduce, while offering resource units to several BSSs.
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