Mobile Station Digital Baseband Test In TD-SCDMA System

With the development of the 30 mobile communication, our own proposal,TD-SCDMA, is brought forward by our nation for the first time. It has been the part ofthe CDMA TDD via the international teamwork on the basis of RTT.The TD-SCDMA mobile station prototype is designed to demonstrate thefunctionality of the TD-SCDMA system. It is the basis for the later product. Firstly,some concepts related, foreground and key techniques of TD-SCDMA are introduced inthis paper. Then, the baseband hardware design scheme is mentioned. The hardware testscheme is put forward according to the hardware board design. The test scheme and testflow of the external DSP in the digital baseband hardware board is raised on the basis ofstudying the baseband hardware board, the peripherals and CPU structure of theTMS32OVC55 10, which is used to validate the design of the baseband hardware boardand the interface. Moreover, baseband boot scheme is advanced in this paper bystudying the structure of the chip used in the baseband.