用于WCDMA编码复接的一种新的算法

A New Implementation Algorithm for Multiplexing and Channel Coding Scheme in WCDMA

第三代移动通信WCDMA系统的一大特点是采用了独特的信道编码复接方案 .它是支持多媒体业务传输的基础 ,也是与第二代移动通信系统的重要区别之一 .该方案较好地实现了对具有不同速率和QoS要求的各种业务的承载 ,然而也大大增加了系统复杂度 ,并引入了长的处理延时 .本文具体阐述了该方案的结构流程 ,分析了其实现复杂的原因 ,并在此基础上提出了一种新的算法 .该算法采用基于地址计算搬移数据的思想 ,大大简化了系统 。

Compared with the 2nd mobile telecommunication system,the most distinct character of WCDMA is its multiplexing and channel coding scheme.This scheme is the basis of supporting multimedia services,while it also causes high complexity and long process delay.This paper introduces the multiplexing and channel coding scheme of WCDMA,and analyzes the reasons why it's difficult to implement.According to the analysis,a new algorithm is presented which is based on the idea of moving the data stream with address computation.It will be shown that through this algorithm,the whole system could be simplified greatly and implemented with much less memory and shorter process delay.