Patent ID: 9706520
Date: 2017-07-11
CPC Classifications: H04W

Claim:
1. A method for determining a terminal state, comprising: a network side judging that no location update initiated by a terminal is received when a reachable timer corresponding to the terminal is expired, then sending paging message to the terminal, and triggering the terminal to initiate an interaction process with the network side to determine the terminal state; and after the interaction process with the network side initiated by the terminal is completed, the network side determining that the terminal is in an online state, and restarting the reachable timer corresponding to the terminal; wherein, sending paging message to the terminal and triggering the terminal to initiate an interaction process with the network side comprises: sending the paging message to the terminal, and triggering the terminal to initiate service request message to a network management entity to which the terminal belongs currently; and the method further comprises: the network management entity feeds back service reject message to the terminal after receiving the service request message, and the network management entity then restarts the reachable timer; and after receiving the service reject message, the terminal restarts a periodical timer.