WCDMA关键技术的研究  

Research on the Key Technologies of WCDMA

作　　者：杨纪寿[1] 赵启飞[1] 

机构地区：[1]柳州职业技术学院,广西柳州545006

出　　处：《柳州职业技术学院学报》2014年第1期37-40,共4页Journal of Liuzhou Vocational & Technical College

摘　　要：WCDMA技术的设计目标是不仅能够提供比第二代移动通信系统更大的容量和更好的通信质量,而且要能在全球范围内更好地实现无缝漫游并为用户提供语音、数据和移动多媒体等业务。与第二代移动通信相比,WCDMA系统采用直扩序列码分多址技术(DS-CDMA),信息被扩展成3.84Mchip/s后在5MHz带宽内传送,同时采用了多种关键技术保证业务质量(QoS)。概括来说,WCDMA关键技术主要包括RAKE接收技术、无线资源管理技术、多用户检测技术和智能天线技术等。Wideband Code Division Multiple Access （WCDMA） technology is primarily designing： the mobile communication requirements have a greater capacity, and have a better communication quality than previous system, and achieve seamless roaming access throughout the world, provide users with voice and data services and mobile multimedia services. Compared to the second generation mobile communication systems, WCDMA communication system has 5MHz bandwidth. It is longer than the second generation communication system which has 2MHz bandwidth. The chip rate of information transmission can be achieve 3.84Mchip/s. WCDMA communication system has use a direct sequence of code division multiple access technique, furthermore, WCDMA communication system adopts several key technologies, such as KAKE receiver technology, the wireless resource management technology, multi-user detection technology and smart antenna technology. These technologies ensure the quality of service （QoS） in the conununication system.

关 键 词：3G WCDMA关键技术 RAKE 多用户检测 

分 类 号：TN929.533[电子电信—通信与信息系统]