Uplink reference signal sending method, uplink reference signal receiving method, and apparatus

An apparatus, comprising:

• at least one processor;
• and
• a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, the programming instructions instructing the apparatus to:
• configure L component carriers for a terminal device, wherein the L component carriers comprise M first component carriers and N second component carriers, the first component carriers are carriers on which scheduling of uplink data transmission is allowed, the second component carriers are carriers on which scheduling of uplink data transmission is prohibited, L, M, and N are positive integers, and L2;
• receive an uplink reference signal from the terminal device on N1 second component carriers within an uplink reference signal sending time, wherein N1 is a positive integer and N1N;
• and
• determine that there is no uplink signal of the terminal device on M1 first component carriers within the uplink reference signal sending time, wherein M1 is a positive integer and N1M1M.

A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to:

• configure L component carriers for a terminal device, wherein the L component carriers comprise M first component carriers and N second component carriers, the first component carriers are carriers on which scheduling of uplink data transmission is allowed, the second component carriers are carriers on which scheduling of uplink data transmission is prohibited, L, M, and N are positive integers, and L2,
• receive an uplink reference signal from the terminal device on N1 second component carriers within an uplink reference signal sending time, wherein N1 is a positive integer and N1N;
• and
• determine, by the computer, that there is no uplink signal of the terminal device on M1 first component carriers within the uplink reference signal sending time, wherein M1 is a positive integer and N1M1M.