TD-SCDMA系统中TFCI译码算法的改进  

Improvement of TFCI Decoding Algorithm in TD-SCDMA System

作　　者：王华强[1] 郑建宏[1] 

机构地区：[1]重庆邮电大学移动通信工程研究中心,重庆400065

出　　处：《通信技术》2008年第3期20-21,24,共3页Communications Technology

摘　　要：在3GPP的物理层协议中传输格式组合指示TFCI采用了类Reed—Muller编码,但标准中没有说明其译码算法。文中将介绍由快速哈达码变换与超码译码结合实现的译码算法,为了提高算法的效率和降低误码率,提出基于tfcNum的快速哈达码变换与超码译码结合实现的译码算法,通过仿真看到改进后译码的效率提高,误码率降低,对整个TD-SCDMA系统有很大的实用价值。In physical layer protocol of 3GPP, transport format combination indicator （TFCI） uses class Reed-Muller encode, and, however, the decoding algorithm is not defined in the standards. This paper describes the decoding algorithm which is realized by combining fast Hadamard transformation and supercode decoding, and proposes the decoding algorithmbased on tfcNum, which is realized by combining fast Hadamard transformation and supercode decoding for high efficiency and low error probability level, and discusses in detail the improvement and introduction in the light of simulation results.

关 键 词：TFCI 快速哈达码变换 Reed—Mullet码 超码译码 

分 类 号：TN929.532[电子电信—通信与信息系统]