| 20100232327 | METHOD FOR HANDOVER PROCEDURE OF USER TERMINAL DURING POWER SAVING OPERATION IN CELLULAR SYSTEM - Provided is a handover method for user terminals operating in a power-saving mode while minimizing time delay in a packet-based cellular system. The handover method includes the steps of: deciding whether to perform handover based on information transmitted from a source base station; transmitting an uplink synchronization acquisition request to a target base station selected according to a decision for performing handover and requesting the target base station for uplink radio resources; and transmitting a handover request message to the target base station based on uplink radio resources allocated by the target base station by performing control according to a radio link control command transmitted from the target base station. | 09-16-2010 |
