US Patent No. 10,172,160

CHANNEL CONTENTION METHOD, ACCESS POINT, AND STATION


Patent No. 10,172,160
Issue Date January 01, 2019
Title Channel Contention Method, Access Point, And Station
Inventorship Tianyu Wu, Shenzhen (CN)
Yi Luo, Shenzhen (CN)
Assignee Huawei Technologies Co., Ltd., Shenzhen (CN)

Claim of US Patent No. 10,172,160

1. A channel contention method comprising: allocating, by an access point (AP), an identifier sequence to each of multiple stations (STAs) in a basic service set (BSS) of the AP; wherein the identifier sequences of the STAs are orthogonal or quasi-orthogonal to an identifier sequence allocated by the AP to another STA in a basic service set (BSS) of the AP; sending, by the AP), a request-to-send (RTS) frame that carries group response indication information for instructing the multiple STAs to return clear-to-send (CTS) frames that have a same content and a same preamble, and are sent by the AP using a same modulation and coding scheme; and receiving, by the AP, a CTS frame that is returned according to the group response indication information by a STA among the multiple STAs that receives the RTS frame; receiving, by the AP, an identifier sequence that is sent after the STA returning the CTS frame returns the CTS frame; and performing, by the AP, a correlation operation according to the received identifier sequence and the identifier sequences of the multiple STAs, to determine the STA returning the CTS frame.