Based On The Mc Interface In The Control And Bearer Of The Third Generation Mobile Communication System Analysis

In present,there are three standards for 3G,WCDMA,TD-SCDMA and CDMA2000.The WCDMA has been used for business widely in China.There are for WCDMA editions,Release 99(R99),Release 4(R4),Release 5(R5),Release 6(R6).R99 is using for business.The edition of R4 is being researched now.The different is obvious on CS core network between R99 and R4,but almost no change for PS.The CS of R4 base on Bearer Independent.R4 splits the MSC of R99 to MGW and MSC Server.The interface between MGW and MSC Server is Mc interface.The H.248(Media gateway control protocol) is used for implementing the Me interface.