Patent ID: 11917565
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 13:
14. The device according to claim 11, wherein the transmitter is configured to send, when the channel is idle, a third synchronization frame to the plurality of woken-up second communications devices, wherein the third synchronization frame carries (a) a sub-channel resource indication of each woken-up second communications device, (b) an identifier of each woken-up second communications device, and (c) a broadcast address as a receiver address of the third synchronization frame,
wherein the third synchronization frame is used to instruct the plurality of woken-up second communications devices to wait a first preset duration to simultaneously access the channel based on their respective sub-channel resource indications after receiving the third synchronization frame.