Patent ID: 7266107

Claim:
A method for setting a common channel for a packet data service by an SRNC (Serving Radio Network Controller) to a UE (User Equipment) through a Node B and a DRNC (Drift Radio Network Controller) when the UE is handed over from a first Node B to a second Node B as the UE moves to the second Node B, in a mobile communication system including the UE, the first Node B providing the packet data service to the UE, the SRNC connected to the first Node B, a CN (Core Network) connected to the SRNC, and the DRNC connected the second Node B neighboring the first Node B and also connected to the SRNC, wherein the CN has bit rate information for the packet data service and transmits the bit rate information to the SRNC, and the SRNC stores the bit rate information, the method comprising the steps of: transmitting service parameters including the bit rate information for the packet data service to the DRNC; receiving information on a common channel determined based on the service parameters from the DRNC; and transmitting information on the determined common channel to the UE through the DRNC and the second Node B, to allocate the determined common channel to the UE.