US Patent No. 10,602,542

TRANSMISSION OPPORTUNITY DETERMINING METHOD, AND ACCESS POINT


Patent No. 10,602,542
Issue Date March 24, 2020
Title Transmission Opportunity Determining Method, And Access Point
Inventorship Hongjia Su, Shanghai (CN)
Yingpei Lin, Shanghai (CN)
Assignee Huawei Technologies Co., Ltd., Shenzhen (CN)

Claim of US Patent No. 10,602,542

1. A transmission opportunity determining method comprising:determining, by an access point, a transmission opportunity duration in which the access point performs frame transmission with at least two stations for a plurality of times;
performing backoff, by the access point, and obtaining a channel through contention;
initially sending, by the access point, a first downlink frame in the transmission opportunity duration, wherein the first downlink frame is a trigger frame for triggering a station to perform multiuser uplink transmission;
upon sending the first downlink frame, determining, by the access point, that the access point holds a transmission opportunity in the transmission opportunity duration; and
sending, by the access point, a second downlink frame in the transmission opportunity duration after determining that the access point holds the transmission opportunity in the transmission opportunity duration,
wherein the access point does not perform backoff before sending the second downlink frame in the transmission opportunity duration when the access point does not receive a multiuser uplink frame in reply to the first downlink frame.