IP语音报头压缩设计与实现  

Design and Implementation of IP Voice Head Compression

作　　者：曹彦军[1] 张明 马献武 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]中国电子进出口总公司,北京100036

出　　处：《无线电工程》2014年第1期4-6,67,共4页Radio Engineering

基　　金：国防基础科研计划资助项目(B1120110001)

摘　　要：针对带宽较窄广域IP话音业务报头开销占用较多传输带宽问题,提出了一种IP话音复用技术。采用多路共用协议报头的方式,通过可靠传输协议沟通IP话音报头信息,在发送端语音压缩设备提取每路的话音净荷组成复用分组IP包发送到对端语音压缩设备,接收端语音压缩设备还原分组IP包,发送到终端设备。采用话音复用技术,能够保证话音通话质量,显著提高带宽利用率。This paper puts forward a kind of IP voice packet multiplexing technique aiming to solve the problem of IP voice traffic head＇ s occupying too much transmission bandwidth in narrow WAN. The principle of the technique is to abstract single voice payload in sending end to form multiplexed IP packets, transmit them to remote voice compressing equipment via reliable transmission protocol transferring IP voice head messages by means of multiplexed protocol packet head,restore IP packets in receiving end, and send them to terminals. This technique has some advantages in improving the utilization of bandwidth greatly and guaranteeing voice quality at the same time.

关 键 词：VOIP 话音压缩 RTP 净荷 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]