室内无线覆盖网管平台的设计与实现

发布时间：2018-05-27 12:02

本文选题：LTE + 直放站　；参考：《北京邮电大学》2016年硕士论文

【摘要】：随着第四代(The Fourth Generation,4G)移动通信业务的不断发展,人们对数据流量的需求也在加大,为了推动长期演进项目(Long Term Evolution,LTE)的发展,4G信号的室内无线覆盖成为了关键问题。基于以上的背景,项目组研制出了多输入多输出(Multiple-Input Multiple-Output,MIMO)信号移频系统,以单缆双流的方式传输LTE信号,达到室内无线覆盖的目的。MIMO移频设备分为近端和远端,近端从基站接入LTE信源,通过单根馈线将合路后的信号传递给远端,远端设备安装在室内覆盖点,将接收到的信号输出到天线。在本文的第二章中详细说明了MIMO移频系统的工作方式和设备出厂自动化测试方案,并设计出相应的自动化测试仪器和软件。为了可以对已部署的设备进行实时监控和统一管理,本项目为MIMO移频设备开发了一套网管系统。网管系统分为三个部分,分别为数据采集系统,本地监控系统和网管中心,使用《中国移动直放站网管协议》作为通信标准。数据采集系统运行在MIMO设备中,负责提供对外的网管接口。近端使用串口和网口作为通信方式,并可以连接短信Modem以提供短信服务和通用分组无线服务(General Packet Radio Service,GPRS)。监控中心与远端的交互数据都由近端来转发,近端与远端通过射频(Radio Frequency,RF)电缆相连,使用二进制移频键控(Binary Frequency shift keying,2FSK)方式对传输数据进行调制。本地监控系统主要应用在设备的现场操作,主要功能包括设备注册、设备工作参数的查询和配置以及设备远程升级等。可以控制设备主动向网管中心发送上报信息。网管中心只能监控已上报的设备,可以对所有运行中的设备进行统一的管理。本文实现了两种方案,第一种是将本地监控系统改造成网管中心使用,另一种是使用中国移动直放站网管平台作为网管中心。为了控制软件的更新版本,本项目还开发了数据采集系统的远程烧写功能。与传统的烧写方法相比,该方案效率更高而且更安全。本文最后对网管系统做了相关测试,测试结果表明,该系统可以实时的监控设备的运行状态与工作参数,实现了对设备的统一管理。
[Abstract]:With the development of the fourth generation of the Fourth Generation 4G mobile communication service, the demand for data traffic is also increasing. In order to promote the development of long Term Evolution (LTE), the indoor wireless coverage of 4G signals has become a key problem. Based on the above background, the project team has developed a multi-input multi-output Multiple-Input Multioutput MIMO signal frequency shifting system, which transmits the LTE signal in a single cable and double current mode, and achieves the purpose of indoor wireless coverage. The frequency shifting device is divided into near end and far end. The near end is connected to the LTE source from the base station, and the combined signal is transmitted to the far end through a single feeder. The remote equipment is installed in the indoor coverage point, and the received signal is outputted to the antenna. In the second chapter of this paper, the working mode of MIMO frequency shift system and the automatic testing scheme of equipment are described in detail, and the corresponding automatic test instruments and software are designed. In order to monitor and manage the deployed equipment in real time, a network management system is developed for MIMO frequency shift equipment. The network management system is divided into three parts: data acquisition system, local monitoring system and network management center. The network management protocol of China Mobile Repeater Station is used as the communication standard. The data acquisition system runs in MIMO equipment and is responsible for providing external network management interface. The near end uses the serial port and the network port as the communication mode, and can connect the short message Modem to provide the short message service and the general packet wireless service. The interactive data between the monitoring center and the remote end are transmitted by the near end, which is connected to the remote end by radio frequency (RF) cable. The binary Frequency shift keying mode is used to modulate the transmitted data. The local monitoring system is mainly used in the field operation of the equipment. The main functions include the registration of the equipment, the query and configuration of the working parameters of the equipment, and the remote upgrade of the equipment. Can control the equipment to send information to the network management center. Network management center can only monitor the reported equipment, and can be unified management of all running equipment. In this paper, two schemes are implemented: the first is to transform the local monitoring system into a network management center, and the other is to use the network management platform of China Mobile Repeater Station as the network management center. In order to control the updated version of the software, the project also developed a data acquisition system remote burning function. Compared with the traditional writing method, this scheme is more efficient and safer. In the end of this paper, the network management system is tested. The test results show that the system can monitor the running state and working parameters of the equipment in real time, and realize the unified management of the equipment.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN929.5;TP311.52

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