密集市区LTE网络规划与设计研究

发布时间：2018-11-14 14:20

【摘要】：LTE网络的规划与设计是非常值得关注和研究的课题,无线网络建设的质量好坏很大程度上取决于网络的规划与设计,现如今国内LTE的网络建设依然在进行,只有通过合理的网络规划,才能充分利用现有资源,实现建设成本与网络覆盖效果的双赢,才能够保障网络的稳定建设和运行。论文对密集市区的LTE网络规划与设计进行研究,首先介绍了无线网络规划中的基础,包括无线传播特性、无线传播模型和天线技术特性等,结合LTE技术特性给出了网络的规划指标要求和流程。其次重点对LTE网络的规划方法进行了研究,对其中的传播模型校正、链路预算、覆盖规划、容量规划、频率规划进行了详细的分析和论述。最后以江苏省某市密集市区为实际案例对LTE网络的规划设计方法进行研究,尤其在传播模型校正、链路预算和atoll仿真上,是理论与实际的结合。该案例的规划主要分为预规划和详细规划,通过实际的工程来进行有力的说明,对该市进行了符合本地的传播模型校正,结合链路预算计算出基站的覆盖半径,用密集市区面积除以单基站的覆盖面积就可以预估算出大致所需要的基站规模,通过利旧现网基站和机房得出了初步的52个LTE基站站址。为了验证预规划中的基站规模,对规划基站所有参数进行详细地规划和设置,通过atoll无线仿真软件对其进行网络仿真,得出RSRP、RS-SINR、下行吞吐量和上行吞吐量四个指标进行验证,通过新增14个基站和调整各基站参数,把网络指标达到密集市区LTE网络规划的要求,最后输出规划结果。规划结果表明52个现网基站和新增14个基站共66个基站完全达到了密集市区规划目标和要求,可按此规划进行后续的LTE网络建设。
[Abstract]:The planning and design of LTE network is a topic worthy of attention and research. The quality of wireless network construction depends on the network planning and design to a great extent. Nowadays, the network construction of LTE in China is still going on. Only through reasonable network planning, can we make full use of existing resources, realize the win-win of construction cost and network coverage effect, and guarantee the steady construction and operation of the network. This paper studies the LTE network planning and design in dense urban areas. Firstly, it introduces the basis of wireless network planning, including wireless propagation characteristics, wireless propagation model and antenna technical characteristics. Combined with the characteristics of LTE technology, the network planning index requirements and flow chart are given. Secondly, the planning method of LTE network is studied, and the propagation model correction, link budget, coverage planning, capacity planning and frequency planning are analyzed and discussed in detail. Finally, a case study on the planning and design of LTE network in a dense urban area of Jiangsu Province is carried out, especially in the aspects of propagation model correction, link budget and atoll simulation, which is the combination of theory and practice. The planning of this case is mainly divided into pre-planning and detailed planning. Through the actual engineering to make a powerful explanation, the city is calibrated according to the local propagation model, and the base station coverage radius is calculated by combining the link budget. By dividing the area of dense urban area by the coverage area of a single base station, the required base station size can be estimated and the primary 52 LTE base station addresses are obtained by using the existing network and computer room. In order to verify the size of the base station in the pre-planning, all parameters of the planned base station are planned and set in detail. The network simulation is carried out through the atoll wireless simulation software, and the RSRP,RS-SINR, is obtained. The four indexes of downlink throughput and uplink throughput are verified. By adding 14 base stations and adjusting the parameters of each base station, the network index can meet the requirements of dense urban LTE network planning. Finally, the planning results are outputted. The planning results show that 52 existing network base stations and 14 new base stations total 66 base stations have fully met the dense urban planning objectives and requirements, according to this plan can be followed by the LTE network construction.
【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

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