Beamforming report feedback method and apparatus

A first communication apparatus, wherein the apparatus comprises at least one processor, the at least one processor configured to implement a method, comprising:

• sending a trigger frame to a second communication apparatus, wherein the trigger frame comprises first information, the first information indicates the second communication apparatus to feed back at least one segment of a beamforming report, the at least one segment comprises a first segment, and the beamforming report is used to report channel information between the first communication apparatus and the second communication apparatus;
• and
• receiving a beamforming report frame from the second communication apparatus, wherein the beamforming report frame comprises the first segment, the first segment indicates channel information on at least two subcarriers, a space between locations of indexes of any two of the at least two subcarriers in indexes of reference subcarriers is a multiple of N, the reference subcarriers are obtained based on bandwidth information, partial bandwidth information, and grouping information, and N is an integer greater than or equal to 2.

A second communication apparatus, wherein the apparatus comprises at least one processor, the at least one processor configured to implement a method, comprising:

• receiving a trigger frame from a first communication apparatus, wherein the trigger frame comprises first information, the first information indicates the second communication apparatus to feed back at least one segment of a beamforming report, the at least one segment comprises a first segment, and the beamforming report is used to report channel information between the first communication apparatus and the second communication apparatus;
• and
• sending a beamforming report frame to the first communication apparatus, wherein the beamforming report frame comprises the first segment, the first segment indicates channel information on at least two subcarriers, a space between locations of indexes of any two of the at least two subcarriers in indexes of reference subcarriers is a multiple of N, the reference subcarriers are obtained based on bandwidth information, partial bandwidth information, and grouping information, and N is an integer greater than or equal to 2.