US 2022/0070772 A1 · LOW-LATENCY ENHANCEMENTS FOR A WIRELESS NETWORK

Abstract

This disclosure provides systems, methods, and apparatuses for wireless communication that can be used to establish a restricted target wake time (TWT) session on a wireless medium. In some implementations, an access point (AP) establishes a restricted TWT session for one or more wireless stations (STAs) associated with latency sensitive traffic, the restricted TWT session including restricted TWT service periods (SPs) during which the AP reserves access to the wireless medium for only the one or more STAs associated with the latency sensitive traffic. The AP transmits a clear-to-send (CTS) frame at a start of each restricted TWT SP, the CTS frame indicating to other STAs that the wireless medium is unavailable for a duration of the respective restricted TWT SP. The AP transmits latency sensitive data to or receives latency sensitive data from the one or more STAs during at least one of the restricted TWT SPs.

Claims30

Dependent claims

A method for wireless communication performed by an access point (AP), comprising:

establishing a restricted target wake time (TWT) session on a wireless medium for one or more wireless stations (STAs) associated with latency sensitive traffic, the restricted TWT session including one or more restricted TWT service periods (SPs) for communications on the wireless medium with only the one or more STAs associated with the latency sensitive traffic;
transmitting a clear-to-send (CTS) frame on the wireless medium at a start of each restricted TWT SP of the one or more restricted TWT SPs, the CTS frame indicating to other STAs that the wireless medium is unavailable for a duration of the respective restricted TWT SP;
and
transmitting latency sensitive data to, or receiving latency sensitive data from, the one or more STAs during at least one restricted TWT SP of the one or more restricted TWT SPs.

1 more element

A wireless communication device comprising:

at least one modem;
at least one processor communicatively coupled with the at least one modem;
and
at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor in conjunction with the at least one modem, is configured to:
schedule a restricted target wake time (TWT) session on a wireless medium for one or more wireless stations (STAs) associated with latency sensitive traffic, the restricted TWT session including a plurality of restricted TWT service periods (SPs) for communications on the wireless medium with only the one or more STAs associated with the latency sensitive traffic;
transmit a clear-to-send (CTS) frame on the wireless medium at a start of each restricted TWT SP of the one or more restricted TWT SPs, the CTS frame indicating to other STAs that the wireless medium is unavailable for a duration of the respective restricted TWT SP;
and
transmit latency sensitive data to or receive latency sensitive data from the one or more STAs during at least one restricted TWT SP of the one or more restricted TWT SPs.

5 more elements

Dependencies are inferred from the claim text.

Low-latency enhancements for a wireless network

Life of this patent

Low-latency enhancements for a wireless network

Life of this patent

Abstract

Claims30