Performance Parameter And Analyze Of Cdma2000 1x Mobile Station

Cdma2000 1x is evolved from the IS-95A/B, it is the first stage of 3G, but the rate didn't get the requirements of 3G, so someone defined it as 2.5G. Cdma2000 lx technology improved wireless access technologies and radio access network, use more advanced technology than the IS-95A /B, have a great enhanced in RC, modulation of physical channel, the wireless packet interface functions. So cdma2000 1x is different from IS-95A/B in the performance test. The paper will analyze the test requirements of cdma2000 lx mobile station based on standards such as 3GPP2, and build the test link, write the test methods, Assess the accuracy of test data.First of all, the paper gives the overview of CDMA, then discuss the cdma2000 1x system, especially the key technologies, like HPSK,Turbo. Then analysis the technical requirements and test methods from standard 3GPP2 C.S0011.From this standard, decide to research the test parameters contains:Time Reference, Waveform Quality, Frequency Accuracy, Range of Open Loop Output Power, Range of Closed Loop Power Control, Maximum RF Output Power, Minimum Controlled Output Power, Conducted Spurious Emissions, Occupied Bandwidth. In follow, use the uncertainty evaluation to assess test results, make the mathematical models. Finally, have a simple analysis about the characteristics of CDMA Automatic Test System used in The State Radio_Monitoring_center Testing Center.