【正文】 ..............26 CDMA2022 1x 的新特性 .............................................................................................................29 CDMA2022 1x 信道 ..........................................................................................................30第 3 章 CDMA 空中信令流程 ..............................................................................................33 與信令流程有關(guān)的幾個(gè)概念.......................................................................................................33 IMSI ....................................................................................................................................33 ESN.....................................................................................................................................34 登記....................................................................................................................................34 導(dǎo)頻信號(hào)集........................................................................................................................34 移動(dòng)臺(tái)狀態(tài)變遷流程...................................................................................................................34 CDMA 基本信令流程 ..................................................................................................................39 語(yǔ)音業(yè)務(wù)起呼....................................................................................................................39 語(yǔ)音業(yè)務(wù)被呼....................................................................................................................402 / 80 位置登記的流程................................................................................................................41 短消息的流程....................................................................................................................42 切換流程............................................................................................................................44 語(yǔ)音業(yè)務(wù)釋放....................................................................................................................47 數(shù)據(jù)業(yè)務(wù)起呼....................................................................................................................48第 4 章 CDMA 空口技術(shù)規(guī)范、協(xié)議 ..................................................................................50 協(xié)議架構(gòu).......................................................................................................................................50 空中接口層次結(jié)構(gòu).......................................................................................................................51 物理層描述........................................................................................................................51 MAC 層描述 ......................................................................................................................52 LAC 層描述........................................................................................................................52 層 3 描述............................................................................................................................53 A 接口協(xié)議層次 ............................................................................................................................53 A 接口協(xié)議層次結(jié)構(gòu) .........................................................................................................53 內(nèi)部接口層次結(jié)構(gòu)............................................................................................................54第 5 章 CDMA 2022 1X EVDO 原理 ..................................................................................55 1X EVDO 系統(tǒng)概述 ....................................................................................................................55 CDMA2022 技術(shù)標(biāo)準(zhǔn)的演進(jìn) ...........................................................................................55 1X EVDO 與 IS95/1X 網(wǎng)絡(luò)的兼容性 ............................................................................55 從 CDMA2022 1X 向 1X EVDO 演進(jìn) .........................................................................56 1X EVDO 協(xié)議與物理層技術(shù) ...................................................................................................56 1X EVDO 網(wǎng)絡(luò)參考模型 .................................................................................................56 1X EVDO 空中接口協(xié)議模型 ........................................................................................58 1X EVDO 前向信道 ........................................................................................................60 1X EVDO 反向信道 ........................................................................................................61 1X EVDO 空中接口關(guān)鍵技術(shù) ...................................................................................................63 前向時(shí)分復(fù)用....................................................................................................................64 前向自適應(yīng)調(diào)制和編碼技術(shù)............................................................................................64 前向 HARQ .......................................................................................................................65 前向鏈路調(diào)度算法............................................................................................................65 前向快速扇區(qū)選擇和切換................................................................................................66 速率控制............................................................................................................................67 1X EVDO ..........................................................................................................................67 1X EVDO 技術(shù)改進(jìn) ..............................................................................................67 物理層新增功能................................................................................................................68 CDMA2022 1X EVDO 數(shù)據(jù)業(yè)務(wù)流程 ...........................................................