无线网络优化毕业论文_大学_教育

毕业设计

题目：

番禺沙塘新区LTE无线网络优化设计

学生姓名：

XXXX

学号：

XXX

专业班级：

B12通信工程一班

指导教师：

企业导师：

XXX

二级学院：

电气与信息工程学院

2019 年3 月

1/58

番禺地区LTE无线网络优化设计

摘要

通信信息产业已成为当今国家经济的重要组成部分，是国家综合国力及科学技术发展水平的重要标志之一。目前，由于移动、电信、联通三大运营商相互之间的竞争日趋激烈，以及用户对自己周边信号覆盖的要求和信号的质量要求不断提高，现网的大面积广覆盖已经无法满足用户的要求。用户希望网络品质不是阻碍沟通的障碍，希望他们的手机终端在任何地方都可以使用达到“无缝覆盖”，包括建筑物内、铁路、公路等。然而传统的无线网络技术已经不能够满足现代工作高效、高安全的保障需求，因此对于无线网络通信技术的变革是必然的事情，目前社会科学领域中也对4G-LTE网络进行了优化，并在实际生活工作当中得到很好的应用。本文将结合实际网优工作中番禺地区的优化实例对电信4G-LTE网络的优化进行进行阐述。

关键词：4G-LTE网络；无线优化；覆盖问题

2/58

OPTIMAL DESIGN PAN YU 4G-LTENETWORK

ABSTRACT

Communication of the information industry hasbecome an important part of national economy, is a national comprehensivenational strength and one of the important symbol of the levels of science andtechnology development. At the moment, the mobile, telecom, unicom threecarriers of the fierce competition between each other, and the user of theirclaims surrounding coverage and signal quality enhances unceasingly, thecoverage of large area has been unable to meet the requirements of users. Theuser wants to network quality is not a barrier to hinder communication, hopetheir handsets can be used anywhere, including buildings, railways, highways,etc. However, the traditional wireless network technology already cannotsatisfy the highly effective, high security, so for the wireless networkcommunication technology change is inevitable, the current in the field ofsocial science also to the 4G - LTE network is optimized, and work to obtainthe very good application in practical life. This article will combine theactual network optimization work in panyu area optimization examples of telecom4G - LTE network optimization

Keywords:4G-LTEnetwork;wireless optimization;coverage problems

1. 概述................................................................... 1

1.1. 课题研究的发展历史............................................... 1

1.2. 课题研究的目标................................................... 2

1.3. 课题研究的意义................................................... 2

2. FDD-LTE网络优化设计步骤............................................... 3

2.1. FDD-LTE优化的重要指标........................................... 3

2.1.1. RSRP....................................................... 3

2.1.2. SINR....................................................... 4

2.1.3. RSSI....................................................... 4

2.1.4. RSRQ....................................................... 4

2.2. FDD-LTE网络优化原理-覆盖优化.................................... 5

2.2.1. 常见的RSRP覆盖问题........................................ 5

2.2.2. 常见覆盖问题的优化方法..................................... 5

2.3. FDD-LTE网络优化原理-切换优化.................................... 6

2.4. FDD-LTE网络优化原理-接入优化.................................... 6

2.5. FDD-LTE网络优化原理-掉话优化.................................... 6

2.5.1. 掉话原因分析............................................... 6

2.5.2. 掉话分析的步骤............................................. 7

3. FDD-LTE网络优化规划方案实施........................................... 7

3.1. 单站优化......................................................... 7

3.2. 单站优化前的准备................................................. 8

3.2.1. 基站后台工程师准备......................................... 8

3.2.2. 测试工程师准备............................................. 8

3.3. 单站验证的步骤................................................... 8

3.3.1. 测试环境................................................... 8

3.3.2. 测试内容................................................... 9

3.3.3. 单小区性能测试............................................. 9

3.4. 簇优化.......................................................... 15

3.4.1. 分簇...................................................... 16

3.4.2. 簇优化主要内容............................................ 17

3.4.3. 覆盖优化.................................................. 18

3.4.4. 干扰优化.................................................. 19

3.4.5. 切换优化.................................................. 19

3.4.6. 掉线率和接通率优化........................................ 20

3.4.7. 告警和硬件故障排查........................................ 20

3.5. 簇优化验收指标要求.............................................. 20

3.5.1. 全网覆盖测试.............................................. 20

3.5.2. 网络质量测试.............................................. 21

4. FDD-LTE测试软件CDS的应用............................................ 23

4.1. CDS软件基本界面简介............................................ 23

4.2. CDS软件界面各按钮的功能........................................ 23

4.2.1. 标题栏.................................................... 24

4.2.2. 设备设置按钮.............................................. 25

4.2.3. 添加地图视图.............................................. 25

4.3. 测试流程........................................................ 26

4.3.1. 添加设备.................................................. 26

4.3.2. 添加CQT测试Indoor Map图层............................... 26

4.3.3. ATE测试项目数据.......................................... 27

4.3.4. 连接设备.................................................. 28

4.3.5. 录制日志数据.............................................. 28

4.3.6. 执行自动测试程序.......................................... 28

5. FDD-LTE无线网络优化.................................................. 28

5.1. FDD-LTE网络技术的基本原理...................................... 29

5.2. FDD-LTE的网络结构图............................................ 29

5.3. FDD-LTE无线网络优化的特点...................................... 30

5.3.1. 覆盖和质量的估计参数不同.................................. 30

5.3.2. 影响覆盖问题的因素不同.................................... 30

5.3.3. 影响接入指标的参数不同.................................... 30

5.3.4. 邻区优化的方法不同........................................ 31

5.3.5. 业务速率质量优化时考虑的内容不同.......................... 31

5.3.6. 干扰问题分析时的重点和难点不同............................ 31

5.3.7. 无线资源的管理算法更加复杂................................ 31

5.4. FDD-LTE无线网络优化流程........................................ 31

5.5. FDD-LTE无线网络优化内容........................................ 32

5.6. FDD-LTE网络优化的关键因素...................................... 33

5.6.1. FDD-LTE系统内干扰特性分析................................ 33

5.6.2. FDD-LTE系统间干扰特性分析................................ 34

5.6.3. FDD-LTE系统切换分析...................................... 34

6. FDD-LTE网络优化实例.................................................. 34

6.1. 本区域周边地理环境.............................................. 34

6.2. 附近现网基站和已规划站点信息.................................... 35

6.3. 干扰情况........................................................ 37

6.4. 室外测试分析.................................................... 37

6.5. 室内覆盖情况（CQT）............................................. 39

6.6. 覆盖情况总结.................................................... 40

6.7. 已采取的优化举措................................................ 41

6.8. 新增资源需求.................................................... 41

结束语................................................................... 41

参考文献................................................................. 42

致谢..................................................................... 43

3/58