TD—MBMS物理层方案研究

摘要

第三代移动通信技术TD—SCDMA发展至今，R4，R5已经商用普及，手机电视业务的需求更加强烈，对MBMS提出了更高的要求，基于MBMS的技术要求，通过借用cost231_hata模型的市区环境，分别对SFN检测技术和联合检测两种宏分集技术进行测试仿真，得到了两种宏分集的的优缺点，并提出改进方案。%According to the developping TD-scdma technology in the third generation mobile communication,R4,R5 has finished commercial popularization, mobile TV has the strong demand for business and MBMS put forward higher request. Based on MBMS technical requirements and through the use cost231_hata model city environment, SFN detection technology and united detection technology.then compare are tested and simulated, then compare their advantages and disadvantages. At last, the improvement scheme is put.