Method, Apparatus And System For Determining Terminal State

A method for determining a terminal state, comprising:

• the terminal initiating a location update to a network management entity to which the terminal belongs when a periodical timer of the terminal is expired within a time limit of a terminal, so as to make a network side determine that the terminal is in an online state.

A method for determining a terminal state, comprising:

• a network side lengthening a time of a reachable timer corresponding to a terminal, the time of the reachable timer after lengthening is equal to or greater than a maximum value of a time limit of the terminal;
• and
• if the terminal fails to trigger a location update before a periodical timer of the terminal is expired, then the terminal reinitiating a location update process to the network side when a timer for limiting time is expired, so as to make the network side determines that the terminal is in an online state.

An apparatus for determining a terminal state, located in a terminal, comprising a timer judgment module and a sending module, wherein:

• the timer judgment module is configured to judge whether a periodical timer of the terminal is expired within a time limit of the terminal;
• and
• the sending module is configured to initiate a location update to a network management entity to which the terminal belongs when the timer judgment module judges that the periodical timer of the terminal is expired within the time limit of the terminal, so as to make a network side determine that the terminal is in an online state.

(canceled)