Patent ID: 8483677

Claim:
A method of managing a mobility management layer in a mobile device, comprising: when receiving a paging message from a network, the mobility management layer entering a waiting state to establish a radio resource connection without establishing any mobility management connection; activating a timer of the mobile device after the mobility management layer enters the waiting state; the mobility management layer exiting the waiting state according to a command received from the network before the timer expires or the mobility management layer exiting the waiting state after the timer expires; determining whether the command associated with exiting the waiting state is received from the network if the timer does not expire; and the mobility management layer exiting the waiting state and performing a specific action corresponding to the command when receiving the command, wherein the specific action includes an “RR (radio resource) connection release” action, an “indicate MM (mobility management) connection” action, an “MS (mobile station) deactivated and attach allowed” action, or an “RR connection release not allow” action.