高话务楼宇TD-SCDMA室内分布系统的设计与实现(硕士)(论文38000字)
Design and Implementation of TD-SCDMA Indoor Distribution System in High Telephone Traffic Building
摘 要
长期以来室内一直是无线通信业务量发生的主要场所，室内话务量至少占70%，随着移动互联网时代的到来，这种趋势更为明显。室内无线通信系统已经成为移动通信产业链上的重要环节，室内网络覆盖和容量越来越难以满足日益增长的用户需求。室内分布系统是移动通信网络的自然延伸，运营商需要重点打造承载高速数据业务的网络，增强室内深度覆盖和话务吸收能力。
本文基于TD-SCDMA（Time Division-Synchronous Code Division Multiple Access）技术基础，介绍了高话务楼宇的室内分布系统。室内分布系统的建设是一项十分复杂的系统工程，涉及规划、勘测、涉及、工程实施、验收、测试、优化、维护等多个环节，信源、直放站、无源器件、天馈系统以及参数优化都会对室分系统的网络质量产生直接影响。作者主要完成的工作如下：（1）立足于具体的工程案例，对现场进行勘测，根据该案例的勘测信息选取采用BBU（Building Baseband Unit）+RRU（Remote Radio Unit）光纤分布覆盖方式。根据设备厂家提供的平面分布图，确定BBU、RRU、各层天线的位置和数量以及具体的走线路由，并指出室内分布系统覆盖工程实施中的注意事项。（2）针对本工程案例的性质，设计出独有的测试方案。根据覆盖测试、容量与链路质量测试、切换测试、覆盖效果测试的实际测试结果，有针对性的对该工程案例进行优化。（3）立足本工程案例，详细说明室内分布系统干扰排查和定位思路，以及如何采取针对性的干扰处理措施。
本文运用TD-SCDMA技术，结合具体高话务工程案例，从设计到实施，从测试到优化，做出一套完整的室内分布系统解决方案。室外3G网络已经足够先进，现在最需要继续发展的就是室内3G网络，高楼大厦的建设给城市带来经济发展的同时也带了许多全新的挑战，希望能够做到优异的网络覆盖面、高标准的信号质量、超大的信号容量。
关键词： TD-SCDMA，高话务楼宇，室内分布系统，工程实施，系统优化
Abstract
For a long time, indoor places have been major sites for wireless communication business and indoor telephone traffic takes up at least 70%. With the coming of mobile Internet era, this tendency has become increasingly obvious. Indoor wireless communication system has become an important link in mobile communication industry chain, and indoor network coverage and capacity is becoming more and more difficult to satisfy the ever-increasing users’ demands. Indoor distribution system is a natural extension of mobile communication network, so operators need to make special effort to create network which bears high-speed data traffic and strengthen indoor deep coverage and telephone traffic absorbing capacity.
This thesis is based on TD-SCDMA(Time Division-Synchronous Code Division Multiple Access)technology basis and it introduces indoor distribution system of high telephone traffic building. Construction of indoor distribution system is a complicated systems engineering, involving multiple links such as planning, survey, design, project implementation, acceptance check, testing, optimizing, maintenance and so on, and information source, RPT (Repeater), passive device, antenna feed system as well as parameter optimization will all have direct influences on network quality of indoor distribution system. The author has completed the following work: (1) establishing on specific project cases, surveying the scenes, choosing and adopting BBU(Building Baseband Unit) +RRU (Remote Radio Unit)optical fiber distribution mulching method according to the survey information of the cases; determining location and number of BBU, RRU and antennas on each level as well as specific wires and routes according to the plane distribution provided by manufacturers and pointing out matters needing attention of indoor distribution system coverage projection implementation. (2) Aiming at properties of this project case, designing unique testing project. According to actual test results of coverage testing, capacity and link quality testing, switch test and coverage effect testing, optimizing the project case with pertinence. (3) Based on this project case, elaborating indoor distribution system interference investigation and positioning thinking as well as how to adopt targeted interference treatment measures.
This thesis makes use of TD-SCDMA technology, combines specific high telephone traffic project case and makes a set of integrate indoor distribution system solution projection from design to implementation and from testing to optimization. Outdoor 3G network is advanced enough, so currently what needs development most is indoor 3G network. Construction of high-rise buildings has brought whole new challenges to cities when it brings economic development, hoping to make excellent network coverage, high-standard signal quality and super-maximal signal capacity.
Key Words: TD-SCDMA; High Telephone Traffic Building; Indoor Distribution System; Project Implementation; System Optimization
目录
摘 要 I
Abstract II
第一章 绪论 1
1.1 研究背景与意义 1
1.2 本课题研究进展 4
1.3 本文主要研究内容 5
第二章 高话务楼宇TD-SCDMA室内分布系统相关技术 7
2.1 TD-SCDMA技术介绍 7
2.2 室内分布系统原理 8
2.2.1 室内分布系统结构 9
2.2.2 信源方式 10
2.2.3 传输介质 11
2.2.4 天线布局 12
2.3 TD-SCDMA室内分布系统覆盖场景 12
2.4 TD-SCDMA室内分布系统设计流程 15
2.4.1 TD-SCDMA室内分布系统规划 16
2.4.2 TD-SCDMA室内分布系统现场勘测 21
2.5 室内分布系统的场强分析和计算 23
2.6 本章小结 24
第三章 高话务楼宇TD-SCDMA室内分布系统设计与实施 25
3.1 TD-SCDMA室内分布系统的需求分析与设计 25
3.1.1 工程需求分析 25
3.1.2 站点勘测信息 25
3.1.3 站点网络现状分析 26
3.1.4 覆盖方式分析 27
3.1.5 设备安装设计 27
3.1.6 天线布放设计 28
3.1.7 功率配置方案 34
3.2 TD-SCDMA室内分布系统的工程实施 34
3.2.1 有源设备安装 34
3.2.2 无源设备安装 36
3.3.3 天馈系统安装 37
3.2.4 电源安装 40
3.2.5 标签 40
3.3 本章小结 41
第四章 高话务楼宇TD-SCDMA室内分布系统测试与优化 42
4.1 TD-SCDMA室内分布系统测试方案 42
4.2 室内分布系统测试 43
4.2.1 覆盖测试 43
4.2.2 容量与链路质量测试 44
4.2.3 切换测试 45
4.2.4 覆盖效果测试 47
4.3 TD-SCDMA室内分布系统优化 48
4.3.1 测试结果分析 48
4.3.2 室内分布系统优化流程 49
4.3.3 室内分布系统具体优化 50
4.4高话务楼宇进出口区域优化 53
4.4.1 进出口区域典型问题分析 53
4.4.2 进出口区域的优化措施 54
4.5 高话务楼宇窗边优化 56
4.5.1 窗口无线环境分析 56
4.5.2 窗口优化策略 56
4.6 TD-SCDMA室内分布系统干扰优化 57
4.6.1 上、下行干扰分类 57
4.6.2 干扰处理准备工作 59
4.6.3 现场干扰排查步骤 60
4.6.4 无线直放站干扰处理方法 60
4.6.5 光纤直放站干扰处理方法 61
4.6.6 自身无源器件干扰处理方法 62
4.6.7 CDMA基站或直放站干扰处理方法 64
4.6.8 外来有意干扰处理方法 65
4.6.9 互调干扰处理方法 65
4.7 本章小结 65
第五章 结论与展望 67
5.1 论文工作总结 67
5.2 未来工作展望 68
参 考 文 献 69
致 谢 71 |
