《毕业论文TDSCDMA室内覆盖设计》由会员分享，可在线阅读，更多相关《毕业论文TDSCDMA室内覆盖设计（44页珍藏版）》请在金锄头文库上搜索。
1、毕业论文-TD-SCDMA室内覆盖设计 摘要 TDSCDMA是由我国提出的第三代移动通信 3G 国际标准，于2000年被国际电信联盟 ITU 正式采纳，成为全球认可的第三代移动通信国际标准之一。全球已成功运营多年的第三代移动通信网络的经验表明，室内话务量在全网话务量的比重越来越高，完善的移动通信网络不仅仅是室外网络的建设，更重要的是室内覆盖的解决。因此，TDSCDMA系统的室内覆盖解决方案对于TDSCDMA网络的商业部署和运营至关重要。2007年，TDSCDMA试验网规模扩大到多个城市，TDSCDMA室内覆盖成为网络建设的重点，虽然运营商积累了大量的2G和部分WCDMA室内覆盖的设计实施经验，
2、但TDSCDMA本身的技术特点使得这些经验不能完全借鉴，缺乏TDSCDMA室内覆盖设计和工程实施的指导原则，需要根据TDSCDMA的技术特点全面研究TDSCDMA室内覆盖解决方案的实施原则和方式方法等。为此，建立了TDSCDMA室内覆盖研究课题，研发中心网络工程部与运营商一起，从理论和实践两个方面，TDSCDMA室内覆盖的设计，实施和验收三个方面进行了详细的研究。为了保证容量，室内系统与室外系统应异频 段 规划。室内链路预算是根据控制信道的功率和覆盖半径计算最大允许的传输损耗，作为室内分布系统设计实施的参考。控制信道的功率配置必须满足控制信道与业务信道覆盖的原则，否则，可能导致接入失败和掉话。
3、受上下行链路平衡的约束，信号源的发射功率不可能随意由于室内移动通信存在覆盖、容量及质量等方面的问题，有必要对室内覆盖分布系统进行分析和研究。室内分布系统由信号源和信号分布两部分组成。根据信号源的不同，室内覆盖分布系统可分为无源分布系统、有源分布系统及光纤分布系统三类。并对室内覆盖的规划流程简单地做了介绍。在设计TDSCDMA室内分布系统时，要根据不同的场景选择合适的信号源，天线的选择与布放也需要考虑，同时要控制室内信号的外泄，及考虑系统间干扰等因素。本文根据几种可能的情况，分析了设计TDSCDMA室内分布系统的方法。提高，在某些场景中，需要使用干放以解决过大的传输损耗的要求，因此，室内覆盖有干
4、放的应用场景。：从TDSCDMA室内覆盖的拓扑结构入手。对PCCPCH最大发射功率、边缘场强、最小耦合损耗、多系统隔离度要求、室内分布系统的损耗估计和覆盖等设计中需要考虑的问题进行详细分析并根据不同情况得出新建和利旧系统的设计方案并给出完整的室内覆盖解决方案。关键词：TDSCDMA；室内分布系统； 第三代移动通信；时分复用同步码分多址接入；室内覆盖；工程布网Abstract3G is the charm of high-speed data and multimedia services, and telephony video streaming, gaming and other high
5、-speed data services are usually occurred in a comfortable indoor environment, these business functions require a large network of system capacity and good quality. 3G era 60% to 70% of the data services will take place indoors, Europe and the United States and China, Hong Kongs statistics that the
6、total indoor mobile telephone traffic telephone traffic about 1 / 3;TD SCDMA standard is adopted by ITU in 2000 proposed by China as one of the 3rd generation mobile communication international standards Proven by the experience of operating the 3rd mobile communication network in global，traffic gen
7、erated in indoor is growing rapidly and accounts for major proportion in total traffic network with seamless coverage does NOT mean outdoor network construction only but also includes indoor network constructionso，a feasible TDSCDMA indoor solution is quite vital to successful TD-SCDMA commercial de
8、ployment and business runningIn 2007，TD-SCDMA trial network extended to 1 0 cities from 3citieTDSCDMA indoor network construction became focus consequently Although accumulated a lot of experience in 2G indoor design and implementation as well as a little experience in indoor，all of those experience
9、s call not be copied communication plat TD-SCDMA for technology differentiation between TDSCDMA and the others The principles of TD-SCDMA indoor design and implementation must be to especially researched and defined based on TD-SCDMA technology good charactersA joint including operators，3rd party an
10、d TDTECH R&D center was set up to probe in TDSCDMA indoor solution from three aspects： indoor designimplementation and acceptance via theoretical research an practical testBased on the research and test results，the paper expatiates on the impact on TDSCDMA solution from capacity ,down link capacity
11、coverage balance，indoor link budget，minimum coupling loss，multi-system isolation，DAS loss estimation and SO onSince smart antenna can not be used indoor environment performance and interference against ability is downgrade，interference limited but not codes limitedIn order to improve systemfrequency
12、 in indoor should be different from that of outdoorCertainly ,in some special scenarios good isolation between indoor and outdoor，frequency Call be reused indoor outdoor We also need adjust antenna exactly and control coverage range during net optimization process Antenna optimization and equipment
13、optimization are showed in network optimization process， frequently call unit applied in BTS and indoor system which are covered by signal，so C network could running fluently and perfectlyIn the design of TDSCDMA indoor distribution system，according to the scenes，we need choose a suitable signal sou
14、rcingWe also need to consider the selection and deployment，signal leakage，and the factors of interference systemsAccording to several possible scenarios this thesis discussed the design of TD-SCDMA approachThis paper introduces the Overview of TD-SCDMA network construction，and put forward engineerin
15、g design of indoor coverage systems，and gives network topology diagram of a certain residential area coverage systemFinally the coverage in the residential area shownFirst of all，through theoretical analysis of covering strategy，a strategy for largescale residential coverage Was foundcoverage model，
16、and the appropriate conclusions were drawnKey words：TDSCDMA；BBU；RRU ；Coverage Capacity；Indoor Link Budget； Indoor Distribution目录第1章 概述11.1课题研究的背景11.2 主要的研究工作21.3 论文的组织结构2第2章 TD-SCDMA室内覆盖系统的组成42.1 室内覆盖系统概述42.2室内覆盖系统的结构52.3 室内覆盖的技术方案52.4室内覆盖系统的组网方式82.5 室内覆盖技术方案的发展方向8第3章 TD-SCDMA室内覆盖系统规划与设计103. 1室内覆盖的几种方式103. 2 室内覆盖系统的信号源13 室内分布信号源的选择15 基于BBU+RRU解决
