摘要
VoWLAN是基于WLAN(无线局域网)的语音技术,是WLAN和VoIP技术的结合,属于一种无线VoIP技术,这一技术使人们随时随地的通过WLAN网络拨打IP电话成为现实。本终端选择UBICOM公司的网络处理器IP2022作为本终端的主控制器、TI公司TLV320系列的AIC10作为语音的编解码处理器。IP2022是一款RISC的处理器,运算速度为120MIPS;在语音处理上,TI的DSP产品价格低廉性能稳定,得到很广泛的应用,满足现阶段对语音的需求。另外,这些器件具有强大的运算和处理功能,经过简单扩充,可满足未来对多媒体通信的需求。SIP协议是下一代网络(NGN)语音通信的主流协议,具有开放性,可加快产品的设计周期,满足社会的需求。
Voice over WLAN（Wireless Local area Network） is a technique of voice that is based on Wireless Local area Network, it is a combination of WLAN and VoIP（Voice over Internet Protocol） and is called wireless VoIP. The technique can make people phoning on WLAN at any moment and place. The IP 2022 network processor chip of UBICOM company is as this product＇ MCU and TI＇ TLV320AIC10 chip is as voice DSP. IP2022 is a RISC processor, its run speed can reach 120 MIPS.TI＇ DSP chips are widely used in audio treatment, it can reach present audio needed with low price, furthermore, these chips have high run speed to deal with data, will be easy adapt to multimedia communication through some simple expansion. SIP protocol, the main VoIP protocol that hold the advantage of openness in Next-Generation Network, can speed up product design and satisfy social demand.
出处
《微计算机信息》
北大核心
2007年第35期292-294,共3页
Control & Automation
基金
重庆市科委自然科学基金计划资助项目(CSTC2006BB2371)
