某办公大楼4G通信分布系统的优化
摘要
本文对4G与分布系统的关键技术进行了介绍，对4G分布系统在设计、建设、优化过程中需要着重考虑的因素如4G分布系统干扰隔离、单双通道天馈系统选型与合路方式进行了探讨。在此基础上为某办公大楼设计了一种双通道4G分布系统改造方案，并付诸实施，并针对实施后存在的影响速率提升的问题进行了专题优化。最后对系统进行了验收性测试，达到了设计的要求。
本论文主要研究内容如下：首先，介绍了论文研究的背景，引出了实施该研究的重要性，其次，介绍了论文中所用到的4G网络以及分布系统的关键技术，并对4G分布系统在多系统设计中的干扰隔离进行了专门分析，这就为下文的开展做好了铺垫。再次，是对通信分布系统的优化设计，根据要求，在对某办公大楼进行全面摸底的情况下，设计了一种双通道4G分布系统改造方案以及施工方面需要注意的问题。最后，针对分布系统建设完成后部分区域存在的低速率问题，如单双通道的选择、MIMO天线功率输出差值、室外宏站对分布系统的干扰影响进行了重点分析，同时对参数导致低速率的一种情况进行了介绍，提出了自己的一些见解，希望能对此类系统的优化提供一些可以参考的建议。
关键词：分布式系统，多模覆盖，双通道模式，参数优化，干扰优化
Abstract
This paper focuses on the key technologies of 4G and distributed system are introduced, the factors of 4G distribution system in the optimization design, construction process, highlighted the need to consider if the distribution system of 4G interference isolation, single and double channel antenna system selection and combination methods are discussed. On this basis, a dual channel 4G distribution system transformation scheme is designed for an office building, and put into practice. Finally, the system is tested, and the design requirements are met.
The main contents of this dissertation are as follows: firstly, introduces the research background, discusses the importance of the implementation of the research, then introduces the key technologies of 4G network used in the paper and the distribution system, and the system design in the distribution system of 4G interference in isolation for a special analysis, it is below the launch ready. Again, is to optimize the design, communication distribution system according to the requirements in a comprehensive diagnostic of a case of office building design of a dual channel 4G distribution system reconstruction scheme and construction aspects need to pay attention to the problem. Finally, aiming at the problems of low rate area after the construction of complete distribution system, such as single and double channel selection, MIMO antenna output power difference, outdoor macro station interference effect on distribution system was analyzed, and the parameters lead to a situation of low rate in the introduction, the author put forward his own opinions hope, optimization of this kind of system can provide some reference suggestions.
Keywords：Distributed system, multi mode coverage, dual channel mode, parameter optimization, interference optimization
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