METHODS FOR PROCESSING A CONTROL MESSAGE IN AN IP MULTIMEDIA SUBSYSTEM IMS, REPRESENTATIVE APPLICATION SERVER, S-CSCF, APPLICATION SERVER, AND USER EQUIPMENT

摘要

A method for processing a message from a user equipment (UE) in a wireless communication system supporting a multimedia service. The method comprises the steps of receiving, by a representative application server, an invite request to create a new dialog from a serving-call session control function (S-CSCF), allocating, by the representative application serer, a specific lower-layer application server from at least one lower-layer application server to the UE, sending the invite request to the specific lower-layer application server without recording the representative application server on a record-route of the invite request, receiving, by the representative application server, a response message from the specific lower-layer application server, and sending, by the representative application server, the response message to the S-CSCF, wherein the invite request is processed by the specific lower-layer application server wherein the specific lower-layer application server is allocated based on user allocation information.