METHOD FOR TRANSMITTING SIGNALS AND ADDITIONAL DATA IN A MOBILE COMMUNICATION SYSTEM, PARTICULARLY FOR ENABLING A TRANSCODER OF A MEDIA GATEWAY TO REDUCE A TRANSMISSION RATE AND INFORMING A BASE STATION CONTROLLER ACCORDINGLY IN RESPONSE TO A CORRESPONDING REQUEST FROM THE BASE STATION CONTROLLER

摘要

PURPOSE: A method for transmitting signals and additional data in a mobile communication system is provided to effectively transmit additional data or a signal message together with voice data to a mobile terminal. CONSTITUTION: When a signal or additional data is generated to be transmitted to a mobile terminal(110) during transmission of voice data, it is checked whether the generated signal or additional data can be transmitted together with the voice data. If the generated signal or additional data can be transmitted together with the voice data, a base station controller(120) requests a media gateway(131) to reduce a transmission rate of the voice data during a pre-set time. When the transmission rate of the voice data is reduced during the pre-set time by the media gateway(131), the generated signal or the additional data are multiplexed and then transmitted together with the voice data to the mobile terminal(110) at the reduced transmission rate.