Communication method and apparatus

A communication method, wherein the method comprises:

• receiving, by a second communication apparatus, a physical protocol data unit (PPDU), wherein the PPDU comprises first indication information indicating Q modulation schemes in W modulation schemes, a difference between numbers of modulation bits of modulation symbols of any two modulation schemes in the Q modulation schemes is less than a first value, the W modulation schemes comprise at least one of the following:
• 4096 quadrature amplitude modulation (QAM), 1024QAM, 256QAM, and binary phase shift keying-dual carrier modulation (BPSK-DCM), and Q is a positive integer less than W;
• and
• parsing, by the second communication apparatus, the PPDU.

A communication apparatus, comprising a processor and a memory, wherein the processor invokes code or an instruction in the memory to perform:

• generating a physical protocol data unit (PPDU), wherein the PPDU comprises first indication information indicating Q modulation schemes in W modulation schemes, a difference between numbers of modulation bits of modulation symbols of any two modulation schemes in the Q modulation schemes is less than a first value, the W modulation schemes comprise at least one of the following:
• 4096 quadrature amplitude modulation (QAM), 1024QAM, 256QAM, and binary phase shift keying-dual carrier modulation (BPSK-DCM), and Q is a positive integer less than W;
• and
• sending the PPDU.

A communication apparatus, comprising a processor and a memory, wherein the processor invokes code or an instruction in the memory to perform:

• receiving a physical protocol data unit (PPDU), wherein the PPDU comprises first indication information indicating Q modulation schemes in W modulation schemes, a difference between numbers of modulation bits of modulation symbols of any two modulation schemes in the Q modulation schemes is less than a first value, the W modulation schemes comprise at least one of the following:
• 4096 quadrature amplitude modulation (QAM), 1024QAM, 256QAM, and binary phase shift keying-dual carrier modulation (BPSK-DCM), and Q is a positive integer less than W;
• and
• parsing the PPDU.