determining a first search space (SS) set and a second SS set; and

determining, based on a first priority of the first SS set and a second priority of the second SS set, whether to monitor a first physical downlink control channel (PDCCH) on a first downlink control channel candidate resource of the first SS set, and whether to monitor a second PDCCH on a second downlink control channel candidate resource of the second SS set, wherein:

the first priority of the first SS set is equal to the second priority of the second SS set;

the second PDCCH carries a power saving signal; and

the first SS set comprises M first downlink control channel candidates at an aggregation level L, the second SS set comprises m second downlink control channel candidates at the aggregation level L, m and M are positive integers, m≤M, and the m second downlink control channel candidates are m downlink control channel candidates of the M first downlink control channel candidates.