Research on monitoring technology of Iu-PS interface in WCDMA network

Abstract This paper describes the overall design framework and functions reality of Iu-PS interface monitoring in WCDMA network, and proposes an Iu-PS interface monitoring solution which divides the Iu-PS interface monitoring module into three sub-modules. Then, the paper analyzes the decoding methods of RANAP, GMM, and SM protocol. The synthesis technology of CDR and statistical method of all the statistical indicators are proposed to solve the technological problems in the process of Iu-PS interface testing. The solution has been implemented in the WCDMA network analyzer and monitoring system and performed excellently in the real network testing.