改善GSM网络话音质量的技术  

The Technologies to Improve Voice Quality in GSM Networks

作　　者：王军 

机构地区：[1]北电邮电技术有限公司北方电讯培训中心

出　　处：《现代电信科技》1998年第6期5-7,16,共4页Modern Science & Technology of Telecommunications

摘　　要：今天,GSM数字蜂窝通信系统在全世界得到了很大的发展,但是,它也面临着与CDMA等其他系统的竞争,而GSM系统本身也有许多值得改进和提高的地方.因此,如何改进现有的GSM系统,特别是如何改善话音质量是设备供应厂商和网络运营机构共同面临的重要问题.GSM系统可以通过采用多种技术来改善话音质量,如采用噪声抑制、干扰消除和增强型全速率编码(EFR)等技术.文章讨论了各种改善GSM网络话音质量的方法和技术.GSM digital cellular communication system has made great advance worldwide, but it has to face the compe-tition with other systems like CDMA. Thus GSM still needs to be improved and promoted. How to improve GSM system, especially the voice quality , is an important problem to equipment suppliers and network operators. The voice quali-ty of GSM system can be improved through many kinds of technologies, such as noise suppression, interference canceling and Enhanced Full Rate (EFR) coding. The technologies and methods to improve the voice quality in GSM networks are discussed in this paper.

关 键 词：GSM 话音质量 数字蜂窝通信 

分 类 号：TN929.5[电子电信—通信与信息系统]