Embodiments of this application disclose a signal receiving method, a signal sending method, and an apparatus, which may be applied to a communication system, for example, a V2X communication system, an LTE-V communication system, a V2V communication system, an internet of vehicles communication system, an MTC communication system, an IoT communication system, an LTE-M communication system, an M2M communication system, or an internet of things communication system. The signal receiving method includes: A network device sends scheduling information to a terminal device, where the scheduling information includes first indication information for time domain positions of M time units, and M is an integer greater than 1; and receives a first signal in N time units in the M time units, where N is an integer greater than 0 and not greater than M.