银川电信LTE无线网络规划与覆盖优化

发布时间：2018-10-29 09:40

【摘要】：近年来,随着智能终端的普及和移动数据业务的迅猛增长,对移动宽带网络的要求大大提高。3GPP提出的LTE系统采用了新型空口技术、扁平化的IP网络结构,可以提供下行100Mbit/s与上行50Mbit/s的峰值速率,成为有效应对全球移动数据业务爆发式增长的主流技术演进方案。本文在研究LTE技术特点及一般规划方法的基础上,从覆盖规划和容量规划两个方面对银川电信LTE网络的无线规划进行了设计,再通过仿真和测试对规划结果进行验证,对于仍存在的网络覆盖问题,通过优化手段得以解决。本文主要内容如下:(1)基于网络覆盖对银川电信LTE无线网络进行规划,通过链路预算,计算出无线信号在空中传播时最大允许路径损耗,结合设计目标和传播模型推算出小区的覆盖半径,从而计算出每个小区的覆盖面积,最终得到规划区域内的所需要的基站数量。(2)基于网络容量对银川电信LTE网络进行规划,通过业务模型和话务模型的分析,估算出每用户的上下行吞吐量,再通过小区容量来确定每小区可支持的用户数,结合市场预测的用户数就可以得出从容量角度需要的基站数量。将容量规划需要与覆盖规划相结合,最终结果同时满足覆盖与容量的需求。(3)针对银川电信LTE网络的规划结果,利用仿真软件进行验证。使用SPM传播模型,通过Atoll软件对银川城区LTE网络进行仿真,对参考信号接收功率RSRP、SINR、上下行吞吐量等指标进行分析,仿真结果表明银川电信本地网LTE的规划方案各项覆盖指标均能满足指标要求。(4)对实施后的银川电信LTE网络进行测试,设计了测试方案,给出了测试路线和测试方法。针对测试中发现的弱覆盖、越区覆盖、重叠覆盖、MOD3干扰等覆盖问题,通过优化手段进行了分析,给出了解决方案。
[Abstract]:In recent years, with the popularity of intelligent terminals and the rapid growth of mobile data services, the requirements for mobile broadband networks have been greatly raised. The LTE system proposed by 3GPP adopts a new type of empty port technology and flat IP network structure. It can provide the peak rate of downlink 100Mbit/s and uplink 50Mbit/s, and become the mainstream technology evolution scheme to deal with the explosive growth of global mobile data services. Based on the study of LTE technology and general planning methods, this paper designs the wireless planning of Yinchuan Telecom LTE network from the aspects of coverage planning and capacity planning, and verifies the results by simulation and test. The problem of network coverage that still exists is solved by means of optimization. The main contents of this paper are as follows: (1) based on network coverage, the LTE wireless network of Yinchuan Telecom is planned, and the maximum allowable path loss of wireless signal is calculated by link budget. The coverage radius of each cell is calculated by combining the design objective and propagation model, and the coverage area of each cell is calculated. Finally get the number of base stations needed in the planning area. (2) based on the network capacity of Yinchuan Telecom LTE network planning, through the service model and traffic model analysis, estimated the uplink and downlink throughput per user. Then the number of users that can be supported in each cell can be determined by the capacity of the cell, and the number of base stations needed from the capacity angle can be obtained by combining the number of users predicted by the market. The capacity planning needs are combined with the coverage planning, and the final results meet the requirements of both coverage and capacity. (3) the simulation software is used to verify the planning results of Yinchuan Telecom LTE network. Using SPM propagation model, the LTE network in Yinchuan urban area is simulated by Atoll software, and the index of RSRP,SINR, uplink and downlink throughput of reference signal receiving power is analyzed. The simulation results show that each coverage index of Yinchuan Telecom Local Network LTE can meet the requirements of the index. (4) after the implementation of Yinchuan Telecom LTE network testing, the test scheme is designed, and the test route and test method are given. For the weak coverage, overpass coverage, overlapping coverage, MOD3 interference and other coverage problems found in the test, the optimization method is analyzed, and the solution is given.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN929.5

【相似文献】