多模融合移动通信Femto网关技术研究与实现

发布时间：2018-01-13 05:31

本文关键词：多模融合移动通信Femto网关技术研究与实现　出处：《北京交通大学》2017年硕士论文　论文类型：学位论文

更多相关文章： Femto 多模融合 网关 移动通信 核心网

【摘要】：Femto系统是毫微微米级的蜂窝小基站系统。Femto系统采用IP网络作为其回程网络,为小区域范围的用户提供移动通信业务,由此推动了移动业务和有线宽带业务的融合。Femto系统成本低、服务质量高、易安装,十分适合部署在室内环境中,尤其适用于矿井、隧道等地下环境部署专属移动通信网络。随着Femto技术的发展,Femto系统仅支持业务在单一接入模式中的漫游,不支持在不同接入模式中的融合漫游,这为利用Femto系统部署移动通信网络带来了很大的不便。特别是在室内、矿井、隧道等环境中部署移动通信网络时,需要重复建设大量独立的Femto相关设备,这不仅增加了建设成本,还会导致部署在这些环境中的移动通信网的网络程度过于复杂。与此同时,当在不同接入技术的Femto系统的核心网中进行消息交互时,消息频繁地在不同核心网间切换还会增加移动通信网络的维护成本。目前,现有的有关Femto技术的研究仅局限于研究单一接入模式,设计并实现的Femto系统也仅支持单一接入技术。但是面对存在多种接入技术的复杂通信环境,没有对可支持多接入模式的Femto技术进行研究。本文针对上述问题,在单一接入模式的Femto系统的基础上研究了一种多模融合移动通信Femto网关技术。论文首先综述了 Femto技术的国内外研究现状,研究了 GSM Femto系统、TD-SCDMA Femto系统以及LTE Femto系统的工作原理。本文提出了一种多模融合移动通信Femto网关技术方案,并设计了六大功能模块,包括数据模块、网关与基站间接口模块、网关与核心网之间接口的控制面和用户面的融合模块、应用管理模块以及协议转换模块。根据技术方案设计并概述了融合网关的工作流程和应用场景的信令流程。本文对部分功能模块的软件结构进行了设计和实现,最终在Linux 2.6.32内核平台上实现了本文所设计的融合网关,并对本文负责实现的功能模块进行了功能测试,在应用场景中对融合网关进行了验证性功能测试。通过本文所研究的融合网关技术,可以有效解决室内移动通信网络建设成本和维护成本过高的问题,可以降低室内移动通信网络的复杂度,增加Femto设备的复用程度。
[Abstract]:Femto system is a small cellular base station system. Femto system uses IP network as its backhaul network to provide mobile communication services for users in a small area. This promotes the integration of mobile services and wideband services. Femto system has low cost, high quality of service, easy to install, and is very suitable for deployment in indoor environment, especially in mines. With the development of Femto technology, Femto system only supports roaming in a single access mode. Does not support the fusion roaming in different access modes, which brings great inconvenience to the deployment of mobile communication network using Femto system, especially in indoor, mine. When deploying mobile communication networks in tunnels and other environments, it is necessary to repeatedly build a large number of independent Femto related equipment, which not only increases the cost of construction. It can also lead to the complexity of the mobile communication network deployed in these environments. At the same time, when the core network of Femto systems with different access technologies is exchanged. The frequent handoff of message between different core networks will also increase the maintenance cost of mobile communication networks. At present, the existing research on Femto technology is limited to the study of single access mode. The Femto system designed and implemented only supports single access technology, but in the face of complex communication environment with multiple access technologies. There is no research on Femto technology which can support multi-access mode. On the basis of Femto system with single access mode, this paper studies a multi-mode fusion mobile communication Femto gateway technology. Firstly, this paper summarizes the domestic and foreign research status of Femto technology. The GSM Femto system is studied. The working principle of TD-SCDMA Femto system and LTE Femto system. This paper presents a multi-mode fusion mobile communication Femto gateway. Six functional modules are designed, including data module, interface module between gateway and base station, interface control surface and user interface module between gateway and core network. Application management module and protocol conversion module. According to the technical scheme design and outline the workflow of the gateway and the signaling process of the application scenario. This paper designs and implements the software structure of some functional modules. Finally, the fusion gateway is implemented on the Linux 2.6.32 kernel platform, and the functional modules are tested. Through the fusion gateway technology studied in this paper, it can effectively solve the problem of high construction cost and maintenance cost of indoor mobile communication network. It can reduce the complexity of indoor mobile communication network and increase the reuse degree of Femto devices.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.5

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