The invention relates to a distribute method of service processing solid, based on region, wherein in the same region and same group, it only distributes one service processing solid, to interact with all users of said group; and it comprises: the base station initializes the group calling request, to build one dynamic server processing solid for reach region; said solid is shared by all users of said group, to process the instructions and service frame of all users of said group; releasing the solid. The invention can effectively improve the capacity, to support group service in CDMA group communication system. |