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全球移动通信系统GSM(GlobalSystemforMobilecommunications)是一个开放的标准系统,自1992年投入商用以来,GSM标准得到不断验证,而...
全球移动通信系统GSM(Global System for Mobile communications)是一个开放的标准系统,自1992年投入商用以来,GSM标准得到不断验证,而且稳步发展,现已到了2+的阶段。这一阶段的核心问题就是数据通信,包括承载业务和115kbit/s分组交换数据业务,另外,GSM将成为最复杂的移动电话系统——覆盖整个地球的卫星系统的基础。GSM正在不断进入新的应用领域,如开发微蜂窝、微微蜂窝基站,为室内商业环境提供无缝无线接入。GSM系统一开始就是从数字化的角度进行设计的,系统采用了模块化结构,若需要提供新业务,只要进行版本升级,增加部分必要的模块,不需对系统进行大的更换,也不用进行大规模的网络重新规划,具有很大的便利性。
为适应因特网和多媒体通信发展的需要,具有更宽带宽、更高速率的第三代移动通信应运而生,国际电联将其称为IMT2000。第三代技术,使用WCDMA空中接口,基于GSM网络结构,能利用现有GSM基础设施,提供与现有网络完全兼容的高速数据业务,因此,GSM标准具有非常光明的前景。
本论文论述了该移动通信网络的设计。首先,本文介绍了GSM移动通信系统的发展现状、前景以及该系统的核心技术;然后对GSM移动通信系统结构以及各组成部分进行了阐述;最后,本文又介绍了GSM系统的网络覆盖与优化。 展开
为适应因特网和多媒体通信发展的需要,具有更宽带宽、更高速率的第三代移动通信应运而生,国际电联将其称为IMT2000。第三代技术,使用WCDMA空中接口,基于GSM网络结构,能利用现有GSM基础设施,提供与现有网络完全兼容的高速数据业务,因此,GSM标准具有非常光明的前景。
本论文论述了该移动通信网络的设计。首先,本文介绍了GSM移动通信系统的发展现状、前景以及该系统的核心技术;然后对GSM移动通信系统结构以及各组成部分进行了阐述;最后,本文又介绍了GSM系统的网络覆盖与优化。 展开
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Global System for Mobile Communications GSM (Global System for Mobile communications) is an open standard system, since the investment business since 1992, GSM standards are constantly verify and steady development, is now available to the 2 + stage. This phase of the core issue is the data communications, including business and carrying 115 kbit / s packet-switched data services, and, GSM will become the most complex mobile telephone system - covering the entire Earth's satellite systems. GSM is constantly entering new application areas, such as the development of micro-cellular, pico cellular base stations, for the indoor business environment to provide seamless wireless access. GSM system from the beginning of digital design point of view, the system uses modular structure, if the need for new business, as long as a version upgrade, increasing part of the necessary modules, the system without major change, do not have to carry out The scale of the network re-planning, and it is very convenient.
In order to meet the Internet and multimedia communication development, with a wider bandwidth, higher rate of the third generation mobile communications came into being, the ITU will be called IMT2000. Third-generation technology, the use of WCDMA air interface, based on the GSM network, using their existing GSM infrastructure, providing fully compatible with the existing network of high-speed data services, so, GSM standard has a very bright future.
This article discusses the mobile communication network design. First of all, the paper introduced the GSM mobile communication system development of the status quo, and the prospects for the core technology of the system and then to the GSM mobile communication system and structure of the various components were also discussed and finally, the paper also introduced the GSM network coverage and system optimization .
In order to meet the Internet and multimedia communication development, with a wider bandwidth, higher rate of the third generation mobile communications came into being, the ITU will be called IMT2000. Third-generation technology, the use of WCDMA air interface, based on the GSM network, using their existing GSM infrastructure, providing fully compatible with the existing network of high-speed data services, so, GSM standard has a very bright future.
This article discusses the mobile communication network design. First of all, the paper introduced the GSM mobile communication system development of the status quo, and the prospects for the core technology of the system and then to the GSM mobile communication system and structure of the various components were also discussed and finally, the paper also introduced the GSM network coverage and system optimization .
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