BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a schematic diagram of an application scenario according to an embodiment of this application;
FIG. 2 is a schematic diagram of a wake up signal sending method according to an embodiment of this application;
FIG. 3 is a schematic diagram of another wake up signal sending method according to an embodiment of this application;
FIG. 4 is a schematic structural diagram of a communication device according to an embodiment of this application;
FIG. 5 is a schematic structural diagram of a core network device according to an embodiment of this application; and
FIG. 6 is a schematic structural diagram of a network device according to an embodiment of this application.
DESCRIPTION OF EMBODIMENTS