receiving, from a core network device, a first category which a terminal device belongs to, wherein the first category corresponds to a first service feature and the first category is a probability value that the terminal device is paged;

receiving, from a network device, a configuration of a plurality of wake-up signals;

determining a to-be-monitored wake-up signal in the plurality of wake-up signals based on the first category; and

monitoring the to-be-monitored wake-up signal.