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增强型数据业务(EDGE)是将现有第二代TDMA移动通信系统推向第三代移动通信系统平滑过渡的一种方案,主要在第二代GSM中采用了一种改进的多电平8-PSK调制方式。因此介绍了EDGE的概念、发展过程、技术标准、承载业务等,并分析了在现有GSM网中部署EDGE对原有网络系统产生的影响。
Enhanced Data Services (EDGE) is a solution to the smooth transition of the existing second generation TDMA mobile communication system to the third generation mobile communication system, mainly adopting an improved multi-level 8 -PSK modulation. Therefore introduced the concept of EDGE, development process, technical standards, bearer services, etc., and analyzed the EDGE EDGE existing network system in the existing GSM network impact.