【正文】 ................6 第 3章 GSM系統(tǒng)結(jié)構(gòu)與相關(guān)接口 .......................................................................................... 8 GSM 系統(tǒng)結(jié)構(gòu) ..............................................................................................................8 系統(tǒng)的基本特點(diǎn) ..................................................................................................8 系統(tǒng)的結(jié)構(gòu)與功能 ..............................................................................................8 接口和協(xié)議 ................................................................................................................ 14 主要接口 .......................................................................................................... 14 網(wǎng)路子系統(tǒng)內(nèi)部接口 ......................................................................................... 15 GSM 系統(tǒng)與其它公用電信網(wǎng)的接口 .................................................................... 17 各接口協(xié)議 ...................................................................................................... 17 GSM 系統(tǒng)主要參數(shù) ..................................................................................................... 20 第 4章 移動(dòng)區(qū)域定義與識(shí)別號(hào) .............................................................................................. 22 區(qū)域定義 .................................................................................................................... 22 服務(wù)區(qū) ............................................................................................................. 22 公用陸地移動(dòng)通信網(wǎng)（ PLMN） ......................................................................... 22 MSC 區(qū) ............................................................................................................ 23 位置區(qū) ............................................................................................................. 23 基站區(qū) ............................................................................................................. 23 小區(qū) ................................................................................................................ 23 移動(dòng)識(shí)別號(hào) ................................................................................................................ 23 IMSI (International Mobile Subscriber Identity)： ................................................. 23 TMSI (Temporary Mobile Subscriber Identity)： .................................................. 24 LMSI (Local Mobile Subscriber Identity)： .......................................................... 25 MA000001 GSM 數(shù)字移動(dòng)通信原理 目錄 華為技術(shù)有限公司 版權(quán)所有 , 未經(jīng)許可不得擴(kuò)散 ii MSISDN(Mobile Subscriber International ISDN/PSTN number)： ......................... 25 MSCNumber(MSC 號(hào)碼 )/VLRNumber(VLR號(hào)碼 ) .............................................. 26 RoamingNumber(漫游號(hào)碼 )與 HandoverNumber(切換號(hào)碼 ) ............................... 26 HLRNumber(HLR 號(hào)碼 ) ................................................................................... 27 LAI(Location Area Identification位置區(qū) ) ............................................................ 27 CGI(Cell Global Identification全球小區(qū)識(shí)別 )...................................................... 28 RSZI (Regional Subscription Zone Identity)....................................................... 28 BSIC（基站識(shí)別色碼） .................................................................................... 28 IMEI（國(guó)際移動(dòng)設(shè)備識(shí)別碼） ........................................................................... 29 第 5章 GSM系統(tǒng)的無線接口與系統(tǒng)消息 .............................................................................. 30 無線接口 .................................................................................................................... 30 語(yǔ)音編碼 .......................................................................................................... 30 信道編碼 .......................................................................................................... 31 交織 ................................................................................................................ 31 調(diào)制技術(shù) .......................................................................................................... 33 跳頻 ................................................................................................................ 34 時(shí)序調(diào)整 .......................................................................................................... 35 幀和信道 .................................................................................................................... 35 基本術(shù)語(yǔ)簡(jiǎn)介 ................................................................................................... 35 信道類型和組合 ................................................................................................ 39 系統(tǒng)消息 .................................................................................................................... 43 系統(tǒng)消息的作用 ................................................................................................ 43 系統(tǒng)消息包含種類及內(nèi)容 .................................................................................. 44 第 6章 系統(tǒng)管理功能介紹 ..................................................................................................... 47 GSM 系統(tǒng)的安全性管理 ............................................................................................... 47 GSM 系統(tǒng)移動(dòng)性管理 .................................................................................................. 49 漫游管理 .......................................................................................................... 49 切換管理 .......................................................................................................... 49 第 7章 GSM移動(dòng)通信網(wǎng) ...................................................................................................... 52 網(wǎng)絡(luò)結(jié)構(gòu) ........................................................................................................