【作者】 张璟；

【导师】 谢仁宏； 张宏；

【作者基本信息】 南京理工大学 ， 电子与通信工程， 2009， 硕士

【摘要】 PHS的成功运营成为新的业务增长点,PHS室内分布系统建设也是南京电信2007和2008年企业发展的重点工作项目之一。本课题主要针对目前还没有完整的PHS室内分布系统研究的系统研究材料,旨在对PHS室内分布系统建设和维护中的遇到的一系列问题进行研究,并将结果应用到实际工程中去。本文首先介绍了电磁环境和PHS网络的基本原理和关键技术；接着对PHS网络现状以及室内分布覆盖工程从方案设计、工程建设和后期维护过程中会遇到的技术难点和关键参数做了介绍,并且通过一个实例,提出了对室内信号覆盖以及对弱信号区进行强化的方式方法。然后,分析了PHS室内分布系统建成之后,需要重点关注的一系列问题,提出了一些解决方案。本文最后还对PHS室内分布系统的未来几种发展方向做了论述,提出了PHS分别与WLAN、3G等系统合路的方法,PHS与3G系统之间的干扰共存,从而达到共用系统节约投资的目的。目前本文对问题的分析还不够完善、随着各种复杂工程的不断开展,有更大的疑难问题会逐渐暴露,将会给室内分布系统建设工作提出更大的挑战,需要进一步的研究和探讨。更多还原

【Abstract】 With PHS being a new business-growth point for its success, the construction of PHS’s Distribute System Indoor becomes one of focus of work of The NanJing branch of China Telecom in 2007 and 2008. This Paper studies the series of problems encountered in construction and maintaining of PHS’s Distribute System Indoor and an improved method is proposed. At last, the result applies in the practice tests the feasibility and correctness of the method.At First, the paper introduces the basic principles and Key Technologies of the electromagnetic environment and PHS’s network, then the technical problems and the key parameters in the coverage project of Distribute System Indoor from designing, construction and post-maintenance of are stated, so a method to strengthen the signal in the weak signal district or in the room. After PHS’s Distribute System Indoor is built, some solutions are proposed to solve the problem. At last, The paper discusses the future several kinds development direction to interior PHS system, suggests that PHS should combine the relevant Systems such as the WLAN、3G and so on, in order to share the systems and save the investment.At present, this article is not perfect enough, many problems will encounter with the continue development of all kinds of complex projects, and we will face greater challenge in construction of Distribute System Indoor, all of these will spur me to discover and solve the problems.更多还原