A METHOD FOR REALIZING VOICE CODING/DECODING CAPABILITY INTERACTION BETWEEN A RADIO NETWORK AND A CORE NETWORK

摘要

a mobile switching center server sending a voice codec capability reporting request message to a base station controller; and after receiving the voice codec capability reporting request message, the base station controller acquiring voice codec capabilities of corresponding cells and reporting the acquired voice codec capabilities of the corresponding cells to the mobile switching center server. In the present invention, the BCS reports voice codec capabilities of the cells that it manages to the MSC server such that the MSC server can compare the received voice codec capabilities of the wireless cells with the voice codec capability of the MGW and select the analyzed common voice codec type by a decision algorithm. The present invention provides the possibility of reducing the cases where the core network assigns to the wireless network the voice version that it can not provide and creates conditions for implementing Trfo.