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

Claim 0:
1. A data transmission method, wherein an access point (AP) comprises a first communications apparatus and a second communications apparatus, a first channel is established between the first communications apparatus and a third communications apparatus of a station STA, a second channel is established between the second communications apparatus and a fourth communications apparatus of the STA, and the first channel and the second channel are channels in different frequency bands; and the method comprises:
after failing to send a first data frame to the third communications apparatus through the first channel, retransmitting, by the first communications apparatus, the first data frame, and sending a second data frame to the second communications apparatus,
wherein the first data frame and the second data frame are a same data frame;
receiving, by the first communications apparatus, a first notification message sent by the second communications apparatus, wherein the first notification message indicates that the second communications apparatus successfully sends the second data frame to the fourth communications apparatus through the second channel; and
stopping, by the first communications apparatus in response to the first notification message, sending the first data frame.