US Patent No. 10,893,539

ENHANCED MANAGEMENT OF ACS IN MULTI-USER EDCA TRANSMISSION MODE IN WIRELESS NETWORKS


Patent No. 10,893,539
Issue Date January 12, 2021
Title Enhanced Management Of Acs In Multi-user Edca Transmission Mode In Wireless Networks
Inventorship Patrice Nezou, Liffre (FR)
Pascal Viger, Janze (FR)
Assignee Canon Kabushiki Kaisha, Tokyo (JP)

Claim of US Patent No. 10,893,539

1. A communication method in a communication network comprising a plurality of nodes, at least one node comprising a plurality of traffic queues for serving data traffic at different priorities; each traffic queue being associated with a respective queue backoff engine for computing, from contention parameters, a respective queue backoff value to be used to contend for access to a communication channel in order to transmit data stored in the respective traffic queue in an enhanced distributed channel access (EDCA) transmission opportunity (TXOP);the method comprising, at the node:
using a plurality of timers, each one associated with one of the traffic queues, each timer counting down a predetermined duration during which the contention parameters remain set to multi-user EDCA (MU-EDCA) parameters for the corresponding traffic queue before being set back to EDCA parameters different from the MU-EDCA parameters.