Communication method in wireless local area network and related apparatuses

A first communication apparatus, comprising a processor and a transceiver, wherein

• the processor is configured to generate a first frequency domain signal, wherein the first frequency domain signal comprises a subsignal obtained by mapping N pieces of first frequency domain data to a first group of subcarriers and a subsignal obtained by mapping N pieces of second frequency domain data to a second group of subcarriers, a spacing between the first group of subcarriers and the second group of subcarriers is odd numbered subcarriers, the first group of subcarriers and the second group of subcarriers each comprise N evenly spaced subcarriers, subcarriers comprised in the first group of subcarriers do not overlap subcarriers comprised in the second group of subcarriers, and N is an integer greater than 1;
• and
• the N pieces of first frequency domain data are obtained by performing phase rotation on data at even positions or data at odd positions in N pieces of original frequency domain data, and the N pieces of second frequency domain data are obtained by performing a preset operation on the N pieces of first frequency domain data;
• and
• the transceiver is configured to send the first frequency domain signal.

A non-transitory, computer-readable storage medium, wherein the computer-readable storage medium stores program instructions that, when executed by a computer, enable the computer to:

• generate a first frequency domain signal, wherein the first frequency domain signal comprises a subsignal obtained by mapping N pieces of first frequency domain data to a first group of subcarriers and a subsignal obtained by mapping N pieces of second frequency domain data to a second group of subcarriers, a spacing between the first group of subcarriers and the second group of subcarriers is odd numbered subcarriers, the first group of subcarriers and the second group of subcarriers each comprise N evenly spaced subcarriers, subcarriers comprised in the first group of subcarriers do not overlap subcarriers comprised in the second group of subcarriers, and N is an integer greater than 1;
• and
• the N pieces of first frequency domain data are obtained by performing phase rotation on data at even positions or data at odd positions in N pieces of original frequency domain data, and the N pieces of second frequency domain data are obtained by performing a preset operation on the N pieces of first frequency domain data;
• and
• send the first frequency domain signal.