基于窄带无线信道的分组话音传输协议设计  

A Scheme of Packet Voice Transport Protocol under Narrow Bandwidth Wireless Channel

作　　者：梁政[1] 

机构地区：[1]中国电子科技集团公司第七研究所,广东广州510310

出　　处：《移动通信》2013年第16期57-61,66,共6页Mobile Communications

摘　　要：分组话音为当前IP交换网络的主要话音通信方式,结合工程实践的实际情况,对分组话音在窄带无线信道的传输协议进行了设计和分析。针对窄带无线信道带宽有限、误码率较高的特点,采用了抗误码能力强的同步码设计和级联信道编码设计,选取合适的声码话编码并进行合理组包,使得分组话音对信道的适应性大大增强,在工程设计上有良好的实用意义。As the packet voice is the mainstream of voice communication in the IP networks, this paper designs and analyzes a scheme of packet voice transport protocol under narrowband wireless channel with the characteristic of limited bandwidth and high bit error rate. A synchronization code with error-resilience frame and a two-stage concatenated error correction coding are utilized in this paper to improve the flexibility of packet voice to narrowband wireless channel, with appropriate voice coding and packet size, which means significance in engineering practice.

关 键 词：分组话音 AMBE声码话 无线组网 传输协议 

分 类 号：TN916.1[电子电信—通信与信息系统]