Td-scdma IR Protocol Programming

In the TD-SCDMA network coverage,we can select the macro,micro-cellular,repeater distributed base stations to cover the nuclear way.Distributed base station coverage plan with low cost,environmental adaptability,construction convenient,save resoureces and other advantages station site.it fully met the fast,flexible Network construction.so it's the futtue direction of the mainstream of development.China Mobile has invested several hundred million in the TD-SCDMA network construction.it has planed to achieve 100% coverage in mainland China cities in the end of this year.in this process,the use distributed base stations covering more than 80% of way,therefore,require so much RRU.The testing is a very important part in the production process,you need to choose the right tester.BBU is such a product.but BBU and RRU is often not the same manufacturers.and what's more.it is very expensive to buy it.Therefore,we need to choose a simple design,provide a rich testing capabilities of its low-cost products.The Ir processing sheet is just a production like this.Full-text from the research background, an overview of the Ir protocol, then the analysis of needs, summed up the issue of hardware and software features. Then the overall structure of the software design, the software is divided into three subsystems: PC display and control subsystem, MPC service terminal systems and FPGA-Ir protocol processing subsystem. To complete the decomposition of the function of each subsystem is designed interface between the various subsystems. Finally, further detailed design of each subsystem software, broken down into smaller software modules, design the interface between the various small modules, running threads, and other sub-processing module.Ir protocol processing at the MPC and the FPGA board procedures were run in test software running on the PC through fiber optic connection RRU, set up a joint test environment. In order to verify the correctness of Ir protocol processing, synchronous optical fiber respectively, O & M news, up and down IQ data, the cascade network, optical fiber delay, combined optical port, fiber optic switching test project to prove the software design to fully meet TD -SCDMA RRU test.Ir protocol designed in this paper applied to a processing board has a lot of the RRU TD-SCDMA equipment vendors product development tests, and achieved a very good value for money.