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随着移动通信的发展,第三代的移动通信技术必将在室内广泛使用,但由于其工作频段为2GHz,因此TD-SCDMA网络有一个缺点:电波绕射能力比较差。这样就带来一个弊端,即TD-SCDMA信号要实现深层次的覆盖比较困难。现代建筑中不可避免的要用到金属材料、混凝土等材料,都对无线信号有很强的屏蔽作用,因此,运营商采用了“室内分布系统”来解决上述问题。本文将对TD-SCDMA建设中,其室内分布系统在网络和技术方面的需求及总体设计规划进行分析。
With the development of mobile communication, the third generation of mobile communication technology is bound to be widely used indoors. However, due to its working frequency band of 2 GHz, TD-SCDMA network has a disadvantage that radio wave diffraction capability is relatively poor. This brings with it a drawback that it is more difficult for TD-SCDMA signals to achieve deep coverage. The inevitable use of modern building materials such as metal, concrete and other materials, have a strong shielding effect on wireless signals, therefore, operators use “indoor distribution system ” to solve the above problems. This article will analyze the demand and overall design and planning of the indoor distribution system in the network and technology in the construction of TD-SCDMA.