Communication method and apparatus

A communication method, comprising:

• receiving N pieces of compression information from a terminal device, wherein N is a positive integer;
• and
• recovering the N pieces of compression information by using a decoder network, to obtain K pieces of recovery information, wherein the K pieces of recovery information are downlink channel information in M time units, K is a positive integer, and M is an integer greater than 1,
• wherein the received N pieces of compression information is obtained from joint compression on M channel estimation results and historical information by using an encoder network, and wherein the historical information comprises a channel estimation result corresponding to a time unit before the M time units.

A communication apparatus, comprising a processor and a memory, wherein the memory is coupled to the processor, and the processor is configured to execute instructions stored in the memory, to cause the apparatus to perform the following:

• obtaining M channel estimation results, wherein the M channel estimation results correspond to M time units, and M is an integer greater than 1;
• performing joint compression on the M channel estimation results by using an encoder network, to obtain N pieces of compression information, wherein N is a positive integer;
• and
• sending the N pieces of compression information to an access network device,
• wherein the performing joint compression on the M channel estimation results by using the encoder network, to obtain the N pieces of compression information comprises:
• performing joint compression on the M channel estimation results and historical information by using the encoder network, to obtain the N pieces of compression information, wherein the historical information comprises a channel estimation result corresponding to a time unit before the M time units.