US 11,792,860 B2
Access management to multi-user uplink random resource units by a plurality of BSSs
Pascal Viger, Janze (FR); Stéphane Baron, Le Rheu (FR); Julien Sevin, Saint Aubin du Cormier (FR); and Patrice Nezou, Liffre (FR)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jun. 30, 2022, as Appl. No. 17/854,552.
Application 17/854,552 is a continuation of application No. 16/976,010, granted, now 11,405,962, previously published as PCT/EP2019/054189, filed on Feb. 20, 2019.
Claims priority of application No. 1803382 (GB), filed on Mar. 1, 2018.
Prior Publication US 2022/0338267 A1, Oct. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/08 (2009.01); H04W 40/24 (2009.01); H04W 72/121 (2023.01); H04W 74/00 (2009.01)
CPC H04W 74/0833 (2013.01) [H04W 40/244 (2013.01); H04W 72/121 (2013.01); H04W 74/006 (2013.01); H04W 74/0808 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A wireless communication method in a wireless network comprising an access point and stations, the method comprising the following steps, at a station:
receiving a trigger frame from the access point, the trigger frame reserving a transmission opportunity on at least one communication channel of the wireless network, the transmission opportunity including a random resource unit that the stations may access using a contention scheme;
receiving parameters of the contention scheme in management frames from the access point, the parameters comprising a contention window range;
contending access to the random resource unit of the transmission opportunity reserved by the received trigger frame, using a contention backoff between a predetermined value and a contention window value; and
updating the contention window value based on whether a transmission over the accessed random resource unit was successful or unsuccessful, the updated contention window value remaining within the contention window range obtained from the received parameters of the contention scheme;
wherein in case the updated contention window value becomes greater than an upper boundary of the contention window range as a consequence of receiving modified parameters of the contention scheme setting the updated contention window value to the value of the upper boundary.