US 12,081,449 B2
QoS management for multi-user and single user EDCA transmission mode in wireless networks
Stéphane Baron, Le Rheu (FR); Pascal Viger, Janze (FR); and Patrice Nezou, Liffre (FR)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jan. 13, 2023, as Appl. No. 18/154,648.
Application 18/154,648 is a continuation of application No. 16/881,669, filed on May 22, 2020, granted, now 11,582,162.
Application 16/881,669 is a continuation of application No. 15/859,059, filed on Dec. 29, 2017, granted, now 10,700,989, issued on Jun. 30, 2020.
Claims priority of application No. 1700268 (GB), filed on Jan. 6, 2017.
Prior Publication US 2023/0155953 A1, May 18, 2023
Int. Cl. H04W 84/12 (2009.01); H04L 47/62 (2022.01); H04L 47/625 (2022.01); H04L 47/6295 (2022.01); H04W 72/543 (2023.01); H04W 74/0808 (2024.01)
CPC H04L 47/6215 (2013.01) [H04L 47/626 (2013.01); H04L 47/6295 (2013.01); H04W 72/543 (2023.01); H04W 74/0808 (2013.01); H04W 84/12 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A communication device, comprising:
a single user (SU) transmitter for transmitting data at specific one of different access categories (ACs) in an enhanced distributed channel access (EDCA) using contention parameters, wherein each of the different access categories has its own contention parameters that can be set to either first or second values;
an uplink (UL) multi-user (MU) transmitter for transmitting data at the specific AC in UL MU resource units,
wherein transmitting data at the specific AC in an UL MU resource unit causes setting EDCA contention parameters of the specific AC to the second values for a period associated with the specific AC, and wherein after the period expires, the contention parameters of the specific AC are set to the first values; and
a processor configured to
disable the UL MU transmitter in a case where Quality of Service, QoS, requirements of the communication device cannot be fulfilled using the UL MU transmitter.