Method for sending demodulation reference signal, method for receiving demodulation reference signal, and communication apparatus

A communication apparatus, comprising at least one processor, and one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to perform operations comprising:

• obtaining indication information, wherein the indication information indicates delay segmentation locations that respectively correspond to M demodulation reference signal (DMRS) port signals;
• generating a first signal, wherein the first signal is formed by superimposing the M demodulation reference signal (DMRS) port signals, the delay segmentation locations corresponding to at least two of the M DMRS port signals are different, and M is an integer greater than or equal to 2, and wherein the delay segmentation location of a DMRS port signal in the M DMRS port signals corresponds to an interval in a delay domain representing a signal delay in which the DMRS port signal arrives at a receive end;
• and
• sending the first signal on a first time-frequency resource.

A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program for being executed by at least one processor to perform operations comprising:

• obtaining indication information, wherein the indication information indicates delay segmentation locations that respectively correspond to M demodulation reference signal (DMRS) port signals;
• generating a first signal, wherein the first signal is formed by superimposing the M demodulation reference signal (DMRS) port signals, delay segmentation locations corresponding to at least two of the M DMRS port signals are different, and M is an integer greater than or equal to 2, and wherein the delay segmentation location of a DMRS port signal in the M DMRS port signals corresponds to an interval in a delay domain representing a signal delay in which the DMRS port signal arrives at a receive end;
• and
• sending the first signal on a first time-frequency resource.