3G technology in the world

WCDMA is the most widely and mature 3G technology in the world, it's the main source of profit of communication equipment manufacturers. From the perspective of the deployment of 3G equipment, NodeB(the base station) is used most widely, and is the biggest part of the contract. NodeB-Tester is the main test equipment of NodeB in a famous manufacturer. It mainly simulates RNC (ratio network controller) to do comprehensive test on the Iub interface in WCDMA network.Based on the R&D work of NodeB-Tester Impact Test Platform of the author,this paper did some research on how to test the performance and stability of NodeB efficiently. This paper expounds the view that using four different kinds of distribution random number to simulate several major technical indicators such as number of UE, calling start time, NBAP holding time, wireless link id, cell id, and downlink data rate of HSDPA to generate the random test instance. Moreover, design a programmable script interpreter, therefore, testers can organize the testing logic of the test instance by script and audit the testing result to analyse functionality and performance of NodeB. On the basis of above research, this paper analyses the functional and operational needs of NodeB-Tester, what's more, designs and implements the impact test platform in NodeB-Tester based on HSDPA. This platform organizes the test script by flow chart, configures the random technical indicators by database in the impact testing. This platform can approximately simulate the real environment to generate random test instance for impacting of NodeB.This platform improves the NodeB-Tester's performance in HSDPA testing. It's a great convenience to organize test logic and accumulate test case. The actual deployment and operation indicate that this platform can effectly improve the quality of NodeB.