US 12,457,640 B2
Multi-user random access in a wireless network
Patrice Nezou, Liffre (FR); Stéphane Baron, Le Rheu (FR); Pascal Viger, Janze (FR); and Julien Sevin, Saint Aubin du Cormier (FR)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jun. 23, 2023, as Appl. No. 18/340,738.
Application 18/340,738 is a continuation of application No. 16/497,740, granted, now 11,729,824, previously published as PCT/EP2018/060988, filed on Apr. 27, 2018.
Claims priority of application No. 1706878 (GB), filed on Apr. 28, 2017; and application No. 1708775 (GB), filed on Jun. 1, 2017.
Prior Publication US 2023/0345531 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/0808 (2024.01); H04L 1/00 (2006.01); H04W 72/0446 (2023.01); H04W 74/0833 (2024.01); H04W 76/11 (2018.01)
CPC H04W 74/0808 (2013.01) [H04L 1/0003 (2013.01); H04L 1/0061 (2013.01); H04W 72/0446 (2013.01); H04W 74/0833 (2013.01); H04W 76/11 (2018.02)] 13 Claims
OG exemplary drawing
 
1. A wireless communication method in a wireless network comprising an access point and a plurality of stations, the method comprising, at the access point:
transmitting a trigger frame, the trigger frame reserving a transmission opportunity on at least one communication channel of the wireless network, the transmission opportunity including random resource units that the plurality of stations may access using a contention scheme, wherein the trigger frame includes an association identifier (AID) and at least one transmission parameter, the at least one transmission parameter being used by the plurality of stations to determine one or more eligible resource units, among the random resource units included in the reserved transmission opportunity, and a number of the determined eligible resource unit or units is used by the plurality of stations to update at least one contention parameter; and
receiving data from at least one of the plurality of stations in the reserved transmission opportunity.