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1、iSDR 软基站版本管理技术的研究与实现摘要SDR（Software Defined Radio，软件无线电）软基站是利用软件无线电技术将设备的物理层或全部的无线电相关功能都使用软件的方式定制和实现的一种基站类型。它是一种分布式基站解决方案，将传统的基站的基带和射频两部分从物理上分开，中间使用光纤通过标准的基带射频接口（CPRI,OBSAI）直连。其基站的硬件采用统一的Micro TCA 平台架构，可以通过软件配置的方式实现多种标准，多种调制方式以及多个频段的支持。软件上采用平台化设计理念，将基站中通用的基带处理，传输资源等做成统一的软件平台，支持多种制式共用底层资源。SDR 软基站具有集成度
2、高，基带资源调配灵活，传输方式丰富，成本低，支持多制式共站，安装方便，节能环保等特点，是当前运营商实现网络融合和平滑演进的最优秀的解决方案之一。基站版本管理是一种研究如何高效可靠地管理和维护，更新和升级基站的软件版本，并能实时快速获取基站当前软件状态信息的技术。基站的版本管理技术是随基站的发展而发展的。以往的版本管理都是基于 TMN 架构设计的，管理对象以单个单板的单个版本为单位，其版本控制转发点分为三个层次，这种机制复杂低效，易用性差，操作不方便。本文充分考虑了 SDR 软基站的硬件和软件特性，在架构设计上，简化了以往版本管理系统多级控制，多级转发，多级下载的复杂低效的版本传输架构，只设置一
3、个转发与控制节点，简单高效，操作方便。在版本组织形态上，改变了以往按单个版本进行下载，激活操作的方式，提出“规格包”的概念，后台操作维护时以规格包为单位进行版本升级，大大提高了版本管理系统的效率和可靠性。在功能上，除了实现版本下载，版本激活，主控板版本加载，受控板版本加载，软件信息查询，硬件信息查询，版本主备同步等版本管理基本功能外，还增加了规格包删除和版本一致性检查功能，提高了基站主控板电子盘的利用率，使当前基站版本实际状态与数据库记录以及网管后台显示始终保持一致，提高了系统的有效性。另外，本文所述的版本管理系统还充分利用了 SDR 基站平台提供的数据库功能，在进行版本信息查询时直接从数据库
4、中读出版本信息，高效可靠。同时，该版本管理系统不是为某一制式定制的，具有很强的各制式通用性。关键词软件无线电，SDR 软基站，版本管理The Research and Implementation of SDR Base Station Version Management Technology AbstractSDR (Software Defined Radio) Base Station(BS) is a type of base station which customize and implement the physical layer of device or all radio
5、-related functions with software. It is a distributed base station solution that separate baseband and Radio Frequency (RF) of the traditional base station to two parts physically and connect each other directly using a fiber through a standard interface (CPRI, OBSAI). The hardware platform of base
6、station is using a unified framework of Micro TCA and it can be achieved through software configuration that supports a variety of standards, multiple modulation and multiple frequency band. The software of BS is designed with platform concept, making baseband processing, transmission resources and
7、clock a unified software platform in general to support multiple formats to share the underlying resources. SDR software base station has the features of high integration, flexible deployment of baseband resources, rich in transmission, the low cost, support multi-standard sharing one station, easy
8、installation, energy saving and environmental protection, which is one of the best solution that Mobile Network Operators realize network convergence and smooth evolution.Version Management(VM)is a kind of techniques which researches how to manage and maintain, update and upgrade the software versio
9、n of the base station efficiently and reliably, and how can quickly access real-time status information of current base station. VM technology develops with the development of the base station. The previous version management is designed based on the TMN architecture, and the management objects is s
10、pecified with a single version of a single board , the forward point of version control is divided into three levels, this mechanisms is complex, inefficient, and operated inconveniently. This paper fully considered the hardware and software features of SDR base station. On the part of the architect
11、ure design, it simplified the previous inefficient transmission system with multi-level control, multi-transponder, multi-level version download iiipattern, set up only a forwarding and control node, which is simple, efficient and easy to operate. On the part of version organization morphology, this
12、 paper changed the past operating by a single version to download or activate, and proposed a“standard package“ concept. Users conduct operation and maintenance to upgrade package for the unit, greatly improving the efficiency and reliability of version management system. Functionally, we have achie
13、ved in addition to the basic functions of version management of version download, version activation, control board version loading, controlled board version loading, the software information query, hardware information query, active/standby version synchronization, but also we have augmented packag
14、e deletion and version consistency check fuctions to improve the utilization of electronic disk, make always consistent the actual state of BS, the database records of version and the display on OMC(Operation Maintenance Center ), and to improve the effectiveness of the system. In addition, the vers
15、ion management system described in this article also takes full advantage of database functionality provided by SDR base station platform, making the version information query to read directly from the database, which way is efficient and reliable.Meanwhile, the version management system is not customized for a particular standard, the standard has a strong versatility.Key wordsSoftware Defined Radio, SDR Base Station, Version Management目录摘要 .iAbstractAbstract .ii目录 .iv第一章 引言 .11.1 基站概述.
