Communication method, apparatus, and system

Abstract

This application provides a communication method. The method may be applied to a device in which an encoder is disposed, or an encoder. The method includes: obtaining N pieces of channel information, where the N pieces of channel information are determined based on a reference signal in K antenna port groups, N is a positive integer, and K is a positive integer less than or equal to N; compressing the N pieces of channel information by using a first encoder, to obtain a first sequence, where the first sequence is a joint feedback quantity of the N pieces of channel information; and sending the first sequence. In the method, channel information of analog beams is jointly compressed by using an encoder and fed back, for example, the N pieces of channel information are compressed into the first sequence, thereby reducing overheads of feeding back the channel information.

Dependencies are inferred from the claim text.