As an optional embodiment, the determination module 510 is configured to determine the state information based on quality information on a link between the device 500 and the network device, and/or, based on quality information on a link between the device and a relay terminal device having the subscription relationship and/or the connection relationship with the device.

As an optional embodiment, the transceiver module 520 is configured to send the state information to a first access network device, or send the state information to a first core network device, or send the state information to at least one second access network device. The first access network device is different from the at least one second access network device.

As an optional embodiment, the transceiver module 520 is further configured to, after the state information is sent to the network device, receive a paging message sent by the first access network device based on the state information.

As an optional embodiment, the transceiver module 520 is further configured to, if the state information indicates that the device is within the coverage of the network, monitor an air interface message and receive the paging message sent by the first access network device through the air interface message.

As an optional embodiment, the transceiver module 520 is further configured to, if the state information indicates that the device has the subscription relationship and/or the connection relationship with the relay terminal device, receive the paging message sent by the first access network device through the relay terminal device.