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US 12,598,650 B2Granted
Prioritization of R-TWT TIDs in R-TWT SPs
AssigneesSony Group Corporation, Sony Corporation of America
InventorsLiangxiao Xin, Li-Hsiang Sun, Qing Xia
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Abstract
Methods are described for overcoming contention issues during R-TWT SPs. In particular, enhanced mechanisms are defined in prioritizing transmissions of R-TWT TIDs during corresponding R-TWT SPs. In addition, enhanced access mechanisms are described for overcoming issues with stations accessing the channel after sensing an idle channel after a DIFS or AIFS time period.
Claims28
An apparatus for wireless communication in a network, the apparatus comprising:
- (a) a wireless communication circuit, performing transmission of frames between a medium access control (MAC) layers of an IEEE 802.11 network as a wireless station (STA) which is an independent STA or as a STA in a multiple-link device (MLD), and operating as either a regular non-Access Point (AP) STA or an Access Point (AP) STA, for wirelessly communicating with other wireless stations (STAs) using a carrier sense multiple access/collision avoidance (CSMA/CA) mechanism on a wireless local area network (WLAN) in which either enhanced distributed channel access (EDCA) is utilized for random channel access on all links or trigger-based channel access is utilized for trigger-based (TB) uplink transmission on all the links;
- (b) a processor coupled to said wireless communication circuit for operating on the WLAN;
- (c) a non-transitory memory storing instructions executable by the processor for communicating with other STAs;
- and
- (d) wherein said instructions, when executed by the processor, perform steps of a wireless communications protocol for said wireless communication circuit in prioritizing transmissions of setting restricted-target wait time (R-TWT) traffic identifiers (TIDs) during R-TWT membership negotiations, comprising:
- (i) negotiating an R-TWT SP between an R-TWT scheduled STA with an R-TWT scheduling AP to become a R-TWT member STA of that R-TWT service period (SP);
- and
- (ii) wherein said R-TWT SP prioritizes transmissions of low latency traffic with specific TIDs as negotiated, wherein two types of channel access are provided as trigger-enabled channel access and non-trigger-enabled channel access, which identifies the R-TWT SP as either a trigger-enabled R-TWT SP or a non-trigger-enabled R-TWT SP.
5 more elements
A method of performing wireless communication in a network, comprising:
- (a) performing transmission of frames between medium access control (MAC) layers of an IEEE 802.11 network as a wireless station (STA) which is an independent STA or as a STA in a multiple-link device (MLD), and operating as either a regular non-Access Point (AP) STA or an Access Point (AP) STA, for wirelessly communicating with other wireless stations (STAs) using a carrier sense multiple access/collision avoidance (CSMA/CA) mechanism on a wireless local area network (WLAN) in which either enhanced distributed channel access (EDCA) is utilized for random channel access on all links or trigger-based channel access is utilized for trigger-based (TB) uplink transmission on all the links;
- (b) negotiating an restricted target wake time (R-TWT) service period (SP) between an R-TWT scheduled STA with an R-TWT scheduling AP to become a R-TWT member STA of that R-TWT SP;
- and
- (c) prioritizing in the R-TWT transmissions of low latency traffic with specific transmission identifiers (TIDs), including R-TWT TIDs, as negotiated, wherein two types of channel access are provided as trigger-enabled channel access and non-trigger-enabled channel access, which identifies the R-TWT SP as either a trigger-enabled R-TWT SP and a non-trigger-enabled R-TWT SP, respectively.
1 more element
Dependencies are inferred from the claim text.