| abstract |
The present invention relates to a SRNS reassignment method for changing a Serving Radio Network Controller (SRNC) for efficient use of radio resources in a UMTS system, which is an asynchronous IMT2000 system.n n n SRNS reallocation method of the present invention, the process of determining the SRNS reallocation on the network; Reserving resources for SRNS reallocation on the network; Transmitting, by the target RNC, a SRNC reassignment-related RRC (Radio Resource Control) message to the terminal for communication with a user equipment by a target RNC performing an SRNC role after an SRNS reassignment process; And in response to the terminal, transmitting an SRNS reassignment related response RRC message to a target RNC.n n n Therefore, according to the present invention, by solving the problem that may occur when the SRNS reallocation process proceeds using the encrypted (Ripher) RRC messages, it supports successful SRNS reallocation. |