The Design And Realization Of Sendport’s Digital Baseband In WCDMA Non-Signaling Terminal Tester Based On Software Radio

With the development and maturity of WCDMA technology, the users of WCDMA terminals have increased rapidly in quantity. As an integral part of the WCDMA industry chain, WCDMA terminal one-box tester has been applied in the design, production, maintenance and certification tests for Network Accessing License of chips and UEs. The demand for improvement of tester’s quality and efficiency is growing higher and higher.With the whole process of theoretical research, scheme design, coding and integrated debugging, the aims of the design and realization of sendport’s digital baseband in WCDMA non-signaling terminal tester were achieved, which decreases the product test cost and enhances the competitiveness of WCDMA UEs.The main contents of this thesis are organized as following:At the beginning, the system architecture and technology characters of WCDMA are reviewed. Some related concepts of terminal tester and software radio are introduced and the present situation of WCDMA tester is also stated. Secondly, a new test scheme named "Fast One-box Non-signaling Test Scheme" is raised and discussed based on the analysis of traditional test scheme. Thirdly, the design of hardware and software architectures and functions of the WCDMA non-signaling terminal tester are stated. The novel design method of digital baseband based on two platforms---"MATLAB and DSP" is also introduced.Then, the design and realization of the waveform document on MATLAB and the function and process on DSP are especially discussed in detail. In the end, the whole thesis is concluded. The development of multi-modes UEs and RF conformance tests and subsequent challenges to the test instrument manufacturers is previewed.The content of this thesis has been successfully applied in the WCDMA non-signaling terminal tester, receiving good social effect.