Patent ID: 7911996
Filing Date: 2011-03-22
Classification: H04W

Abstract:
1. A method in a mobile station comprising: detecting an event associated with triggering one of a first category of access network registration, the first category of access network registration comprising at least one of timer-based registration, distance-based registration, zone-based registration, parameter change registration, and user zone registration, wherein the first category of access network registration is associated with sending a registration message; and if a current packet data service reconnect zone was recently visited within a defined period of time, the mobile station performing a packet data service reconnect in a manner that implies access network registration by sending an origination message in lieu of sending the registration message, wherein the mobile station determines that the current packet data service reconnect zone was recently visited within the defined period of time if a packet zone list contains an entry with an active packet zone hysteresis timer for the current packet data service reconnect zone.