Patent ID: 11909537
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 8:
9. A communications apparatus, comprising:
a third transceiver, configured to receive a second data frame, wherein the second data frame is sent by a first communications apparatus of an access point (AP) when the first communications apparatus retransmits a first data frame to a third communications apparatus of a station (STA) through a first channel, and the first data frame and the second data frame are a same data frame;
a fourth transceiver, configured to send the second data frame to a fourth communications apparatus of the STA through a second channel; and further configured to receive a first acknowledgment message from the fourth communications apparatus through the second channel, wherein the first acknowledgment message indicates that the fourth communications apparatus receives the second data frame through the second channel, and the first channel and the second channel are channels in different frequency bands; and
a second controller, configured to send a first notification message to the first communications apparatus in response to the first acknowledgment message, wherein the first notification message is used to instruct the first communications apparatus to stop sending the first data frame.