US Patent No. 10,433,302

APPARATUS, COMPUTER READABLE MEDIUM, AND METHOD FOR MULTI-USER REQUEST-TO-SEND AND CLEAR-TO-SEND IN A HIGH EFFICIENCY WIRELESS LOCAL-AREA NETWORK


Patent No. 10,433,302
Issue Date October 01, 2019
Title Apparatus, Computer Readable Medium, And Method For Multi-user Request-to-send And Clear-to-send In A High Efficiency Wireless Local-area Network
Inventorship Po-Kai Huang, San Jose, CA (US)
Chittabrata Ghosh, Fremont, CA (US)
Robert J. Stacey, Portland, OR (US)
Qinghua Li, San Ramon, CA (US)
Assignee Intel IP Corporation, Santa Clara, CA (US)

Claim of US Patent No. 10,433,302

1. An apparatus of a high-efficiency (HE) access point (AP), the apparatus comprising: memory; and processing circuitry coupled to the memory, the processing circuitry configured to:encode a HE physical layer convergence procedure (PLCP) protocol data unit (PPDU), the HE PPDU comprising a multi-user (MU) request-to-send (RTS) trigger frame, the MU-RTS trigger frame comprising a type field, wherein a value of the type field indicates the MU-RTS trigger frame is a trigger frame of type MU-RTS,
wherein the MU-RTS trigger frame further comprises a plurality of HE station information fields, wherein each of the plurality of HE station information fields comprises an association identification (AID) field and an indication of a bandwidth of a clear-to-send (CTS) frame, wherein the MU-RTS trigger frame indicates that a HE station identified by the AID field is to transmit the CTS frame with the bandwidth, and
wherein the MU-RTS trigger frame further comprises a carrier sense (CS) field to indicate whether HE stations addressed by the AID field are required to sense the medium and determine whether to respond to the MU-RTS trigger frame based on a state of the medium and a state of a network availability vector (NAV); and
generate signaling to cause the HE AP to wirelessly transmit the HE PPDU.