阿尔卡特BTS培训

ALCATELBTSIntroductionPresentationTitle—2Allrightsreserved©2003,AlcatelShanghaiBellCONTENTSGSM系统简介BTS硬件介绍BTS功能介绍BTS调测流程更换备板流程PresentationTitle—3Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介GSM系统结构图空中接口ABISA接口GB接口PresentationTitle—4Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介GSM结构组成•MS提供用户接口实现终端业务•BSS提供和管理MS与网络的传输路径，无线接口管理–BTS–BSC–TC•NSS–实现GSM系统的交换功能；连接到外部网络PresentationTitle—5Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介GSM系统内部接口•空中接口–连接MS,BTS–链路协议：LAPDm•ABIS接口–连接BTS,BSC–链路协议：LAPD•A接口–连接BSC(TC),MSC–链路协议：MTP(NO.7第2层）PresentationTitle—6Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介GSM提供的业务类型•Teleservices–Telephony,Emergencycall,DataCalls,Fax,ShortMessageService,CellBroadcast,etc•Bearerservices–提供基本的传输功能•Supplementaryservices–Callforwarding–Callbarring–Callwaiting,callhold,andthree-partyservicePresentationTitle—7Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介蜂窝结构•可以实现频率的复用•对每个小区分配固定的频点•或对小区分配跳频序列–跳频的种类–BBH–SFH•实现了有限的频谱资源覆盖无限的区域PresentationTitle—8Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介频率资源•P-GSM–上行：890MHz至915MHz–下行：935MHz至960MHz–信道间隔：200KHz•DCS1800–上行:1710MHz至1785MHz–下行：1805MHz至1880MHz–信道间隔：200KHz调制方式•GMSK复用方式•TDMA/FDMAPresentationTitle—9Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介逻辑信道•信令信道–广播信道–SFH–FCCH–BCCH–公共控制信道–RACH–AGCH–PCH–专用控制信道–ACCH–SDCCH•业务信道PresentationTitle—10Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介BSS实现的功能•CallSetUp•CallHandling•CallRelease•Operations&MaintenancePresentationTitle—11Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介BSS的通信协议层•应用层分为如下三方面–CM–MM–RM•传输层PresentationTitle—12Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介BSS结构中各网元的作用•BTS–收发无线信号，提供BSC与MS之间的链路•BSC–控制BTS,在电路交换业务中实现资源及设备的管理，提供和管理MS与网络的传输路径，无线接口管理•TC–码型变换，速率适配–合路，分路PresentationTitle—13Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介其他一些基本概念•位置更新•切换•小区重选•话务量•BSICPresentationTitle—14Allrightsreserved©2003,AlcatelShanghaiBellGSM系统简介-练习题P-GSM系统带宽是_______MHz,共有_____信道。DCS1800系统上行频段：_________,下行频段___________。BSS系统有哪些网元组成，画出简图，并注明网元之间的接口。BTS的作用是什么？试描述切换同小区重选的区别。在GSM系统中跳频有哪两种方式。GSM系统中无线上采用_________调制方式，采用_______复用方式CCCH中包含的下行信道有、。PresentationTitle—15Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述PresentationTitle—16Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述ALCATELBTS的类型•MBI–MBI3,共有3层最多接8个频点–MBI5，共有5层，最多接12个频点•MBO–MBO1,共有4层，最多8个载频–MBO2，扩展机架•CBO–共2层，最多2个载频•M5M–共2个载频，支持3级级联•M4M–共2个载频PresentationTitle—17Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述机架配置•INDOOR–标准配置–3*4–2*6–1*8–1*8+1*4–低损耗配置–1*12•OUTDOOR–标准配置–2*4PresentationTitle—18Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述室内机架•MINI架CIMI/CIDI•MEDI架CIMA/CIDE•MBIPresentationTitle—19Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述机架结构•架内数据线连接各分架–BTSRI到TFBPPresentationTitle—20Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述•天馈接口–N,P,Q,RPresentationTitle—21Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述•BTSCA–ABIS接口–XIO接口–时钟接口•电源开关–INT–SR1–SR2–SR3–SR4–SR5PresentationTitle—22Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述•内部连线–CS02–CS03–CS04–CS05–BTSRIMAPresentationTitle—23Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述室外机架•MBO1•MBO2•CBOOUTC,PM12PresentationTitle—24Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述STATIONUNIT•对应硬件–SUMA–SUMP•功能–Digitaltransmission–Timingandclockgeneration–ManagementoftheBTSinternaldigitalinterfaces–O&Mfunctions–RI–ControloftheAC/DCconvertersandcheckofthebatteries(SUMAonly).PresentationTitle—25Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述•外部接口–ABIS–MMI–CLLK•时钟同步方式–Onanexternalclockreferencecomingfromanotherbts–OntheAbisclock–ontheGPSCLOCKreceiver–Nosynchronization•LED–ABIS–PS–OML–O&MPresentationTitle—26Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述TRANSCEIVERUNIT•对应硬件–TRGM–TRAG–TRDM–TRAD–TRGHPresentationTitle—27Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述ANTENNARnetwork•Pathloss•ANXarchitecturePresentationTitle—28Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述ANTENNARnetwork•ANYarchitecture•PathlossPresentationTitle—29Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述•ANCbasicarchitecture•WBCCombiningmodePresentationTitle—30Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述ANCbasicarchitectureTRX3,By-passfunctionPresentationTitle—31Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述ANXfunction:Combineupto4transmittersandconnecttouptotwoantenna:Feedsignalstotheradiofrontendforamplifiedanddistributed:DuplexerallowsimultaneousTXandRX:ProvidefilteringfortheTXANDRXpath:SupervisetheVSWRoftheantennasPresentationTitle—32Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述温度控制•FANU•FACB•HEXPresentationTitle—33Allrightsreserved©2003,AlcatelShanghaiBellBTS硬件描述工作环境•室内站–温度-5°C至45°C–相对湿度5%至90%•室外站–DC–温度-33°C至45°C–相对湿度15%至100%–AC–温度-45°C至45°C–相对湿度8%至100%PresentationTitle—34Allrightsreserved©2003,AlcatelShanghaiBell练习题MBS基站系列中室内站是______,室外站是_______S866的基站需______个MBI5机架，需____个ANC,____个ANYSUMA的功能是什么试比较ANC，ANX的区别画出标准配置/低损耗配置下8载频小区的AN同TRE的逻辑结构室内基站的工作环境温度是______.TRAG的发射功率是_______W，ANX的路径衰耗是___DBANY的路径衰耗是____DBPresentationTitle—35Allrightsreserved©2003,AlcatelShangh