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我国移动市场目前仍处于高速发展阶段,每年都有将近几千万新增用户,频率资源紧张成了通讯领域中的首要问题。3G 渐近,如何迎接这场信息领域中新的冲击,笔者认为解决和完善城市网络建设,提高网络质量,满足室内覆盖、容量的需求成为亟待面对的重要因素。EGSM 概念EGSM 是增强型全球移动通信系统(Enhanced Global System for MobileCommunications)的缩写形式,是 GSM的扩展,EGSM 的工作频率经扩展后比GSM 900频段低10MHz(即:上行频率为885.000MHz～890.000MHz,下行频率为930.000MHz～935.000MHz)。
At present, China’s mobile market is still in a phase of rapid development. Each year, tens of millions of new subscribers are subscribed to and the frequency and resource constraints have become the primary problems in the communications field. 3G asymptotic, how to meet this new impact in the field of information, I believe that to solve and improve the urban network construction, improve network quality and meet the indoor coverage, capacity needs become an important factor to be faced with. EGSM Concept EGSM is an abbreviation of Enhanced Global System for Mobile Communications and is an extension of GSM. The EGSM operates at a frequency of 10MHz lower than that of the GSM 900 band (ie, the uplink frequency is 885.000MHz-890.000MHz , The downlink frequency is 930.000MHz ~ 935.000MHz).