Channel competition method and device

A channel competition method, comprising:

• receiving, by a second device, on a target sub-channel, a request frame sent by a first device, wherein the target sub-channel is at least one sub-channel of one or more idle sub-channels in idle state comprised in a target channel;
• generating, by the second device, a response frame in response to the request frame;
• and
• transmitting the response frame to the first device, so that the first device confirms a success in competition for the target sub-channel.

A channel competition device, comprising a detector, a transmitter, and a processor, wherein:

• the detector is configured to detect whether a target channel comprises one or more idle sub-channels in an idle state;
• the transmitter is configured to transmit a request frame to a second device on a target sub-channel in a case that the detector detects that the target channel comprises one or more idle sub-channels in the idle state, wherein the target sub-channel is at least one sub-channel comprised in the one or more idle sub-channels;
• and
• the processor is configured to confirm a success in a competition for the target sub-channel once the channel competition device receives a response frame sent by the second device, wherein the response frame is a response frame from the second device in response to the request frame.