【电信学】【2018.11】多种场景下5G蜂窝无线网络的部署分析

本文为葡萄牙里斯本技术大学（作者：Alexandre Botelho Vieira）的硕士论文，共135页。

本文的主要目的是研究并开发一个5G-NR网络的蜂窝规划模型。目标是使用定义良好的参考模型参数和不同的流量状况，计算覆盖给定目标区域所需的小区单元数。该模型的开发考虑了与5G-NR相关的覆盖和容量规划特性，适用于700和3500 MHz频段，在三种不同的环境（城市、郊区、农村）包括不同的数字化配置。利用所开发的模拟器，可以很容易地评估不同输入参数（如用户密度、目标区域、频带、带宽、参数集、小区边缘的吞吐量、业务概况等）对小区数量的影响。在容量量纲方面，由于包含了参数化配置，资源分配过程已经从头开始重新开发。当用户密度增加或可用带宽减少时，小区总数会增加，并且随着用户数量的增加，需要更多的资源来满足覆盖和容量要求。城市场景中的大多数小区都受到容量的限制，而与频段无关，对于郊区和农村小区，当频率增加时，会从覆盖范围转移到容量受限的小区。此外，流量剖面的结果显示，改变服务组合或服务的吞吐量会严重影响所需小区的数量，小区数量的相对增加可达40%。

The main purpose of this thesis was tostudy and develop a model for cellular planning for 5G-NR networks. The goalwas to compute the number of required cells to cover a given target area, withwelldefined reference model parameters and different traffic profiles. Themodel was developed considering coverage and capacity planning characteristicsrelated to 5G-NR, for the 700 and 3 500 MHz bands, in three differentenvironments (urban, suburban, rural) with the inclusion of differentnumerology configurations. With the developed simulator, one can easily assessthe impact of varying input parameters, such as user density, target area,frequency band, bandwidth, numerology, throughput at cell edge, trafficprofile, among others, on the number of cells. Regarding capacity dimensioning,the process of resource allocation has been redeveloped from scratch due to theinclusion of numerology configurations. An increase on the total number ofcells is observed when the density of users increases or when the availablebandwidth decreases, and with more users more resources are needed to fulfilcoverage and capacity requirements. Most of the cells in urban scenarios arelimited by capacity regardless of the frequency band, whilst for suburban andrural ones there is a shift from coverage to capacity limited cells when anincrease of frequency occurs. Also, regarding the traffic profile, the resultsshow that changing the service mix or the services’ throughput values canseverely impact on the number of required cells, with a relative increase inthe number of cells up to 40%.

1. 引言
2. 基本概念及最新进展
3. 模型与仿真器描述
4. 结果分析
5. 结论
   附录A SNR vs. 吞吐量
   附录B 传播模型
   附录C 地区
   附录D 互补模型与评估数据
   附录E 互补模型与实施工作流程

更多精彩文章请关注公众号：