Csi-rs transmission method and network device

A network device, comprising:

• a memory configured to store an instruction;
• and
• a processor configured to execute the instruction to determine that at least two of M quantities of antenna ports respectively used by M radio remote units (RRUs) for sending channel state information-reference signal (CSI-RS) to same user equipment are not equal, and to instruct the M RRUs to send P CSI-RSs on N resource elements, wherein at least one of the N resource elements includes content of at least two of the P CSI-RSs, the P CSI-RSs are CSI-RSs respectively sent by P RRUs in the M RRUs, M is an integer greater than or equal to 2, P is an integer less than or equal to M, and N is a positive integer.

A non-transitory computer storage medium storing instructions, which when executed by a processor, cause the processor to perform a channel state information-reference signal (CSI-RS) transmission method, the method comprising:

• determining that at least two of M quantities of antenna ports respectively used by M radio remote units (RRUs) for sending a CSI-RS to same user equipment are not equal, wherein M is an integer greater than or equal to 2;
• and
• instructing the M RRUs to send P CSI-RSs on N resource elements, wherein at least one of the N resource elements includes content of at least two of the P CSI-RSs, the P CSI-RSs are CSI-RSs respectively sent by P RRUs in the M RRUs, N is a positive integer, and P is an integer less than or equal to M.