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

Claim 0:
1. A channel access indication method, comprising:
receiving, by a first communications device, a channel synchronization request sent by a second communications device, wherein a wake-up receiver is configured for the second communications device;
according to the channel synchronization request and based on a time at which the second communications device is woken up, sending, by the first communications device when a channel is idle and to the woken-up second communications device, a first synchronization frame (a) including an identifier of the woken-up second communications device and (b) instructing the woken-up second communications device to access the channel after receiving the first synchronization frame; and
broadcasting to a plurality of woken-up second communications devices, a second synchronization frame including a broadcast address when the channel is idle.