【正文】 減小、末端基站數(shù)量膨脹，要求深度覆蓋、大帶寬容量的城域網(wǎng)進(jìn)行支撐。1中國移動城域網(wǎng)建設(shè)方案場景模型計劃部2目錄1 背景 .......................................................................................................................................................5 電信運營的變革 .............................................................................................................................5 全業(yè)務(wù)對網(wǎng)絡(luò)帶來的挑戰(zhàn) .............................................................................................................5 目的及意義 .....................................................................................................................................62 全業(yè)務(wù)城域網(wǎng)網(wǎng)絡(luò)架構(gòu) .......................................................................................................................63 全業(yè)務(wù)城域網(wǎng)組網(wǎng)要求 .......................................................................................................................8 組網(wǎng)原則 .........................................................................................................................................8 城域數(shù)據(jù)網(wǎng)組網(wǎng)要求 .....................................................................................................................9 城域數(shù)據(jù)網(wǎng)定義及組網(wǎng)拓?fù)?..................................................................................................9 城域數(shù)據(jù)網(wǎng)組網(wǎng)要求 ............................................................................................................10 城域數(shù)據(jù)網(wǎng)中繼帶寬設(shè)置要求 ...........................................................................................11 節(jié)點設(shè)備配置要求 ...............................................................................................................12 城域傳送網(wǎng)組網(wǎng)要求 ...................................................................................................................12 核心層 ...................................................................................................................................13 匯聚層 ...................................................................................................................................14 接入層 ...................................................................................................................................15 寬帶接入網(wǎng)組網(wǎng)要求 ...................................................................................................................15 PON 接入網(wǎng)組網(wǎng)要求 ...........................................................................................................16 WLAN 網(wǎng)絡(luò)組網(wǎng)要求 ............................................................................................................18 城域網(wǎng)各部分網(wǎng)絡(luò)互聯(lián)方案 .......................................................................................................19 CMNET 城域網(wǎng)和 PON 接入網(wǎng)互聯(lián)組網(wǎng)方案 ....................................................................19 CMNET 城域網(wǎng)和 PTN/IP RAN 互聯(lián)組網(wǎng)方案 ...................................................................20 光纜網(wǎng)絡(luò)建設(shè)要求 .......................................................................................................................21 整體規(guī)劃 ...............................................................................................................................21 光纜規(guī)劃 ............................................................................................................................22 綜合業(yè)務(wù)接入?yún)^(qū)規(guī)劃 ........................................................................................................23 分段建設(shè)、分步實施 ...........................................................................................................234 全業(yè)務(wù)城域網(wǎng)機房設(shè)備部署及連接關(guān)系 .........................................................................................24 核心機房 .......................................................................................................................................24 匯聚機房 .......................................................................................................................................25 業(yè)務(wù)匯聚點 ...........................................................................................................................25 城域數(shù)據(jù)網(wǎng)業(yè)務(wù)接入控制節(jié)點 ...........................................................................................25 基站機房/末端接入 ......................................................................................................................265 各類客戶業(yè)務(wù)接入場景模型方案 .....................................................................................................27 基站接入場景 ...............................................................................................................................28 場景分類 ................................................................................................................................28 主推方案：新增 PTN/IP RAN 疊加組網(wǎng) .............................................................................28 補充方案一：新增 PTN/IP RAN 替換組網(wǎng) ..........................................................................29 補充方案二：擴容 MSTP.......................................................................................................303 組網(wǎng)方案總結(jié) .......................................................................................................................31 集團客戶高等級業(yè)務(wù)場景 ...........................................................................................................31 集團客戶高等級業(yè)務(wù)場景舉例 ...........................................................................................31 主推方案： PTN/IP RAN 直接接入城域接入層 /匯聚層 PTN/IP RAN ..............................32 補充方案一： MSTP/SDH 直接接入城域接入層 /匯聚層 MSTP/SDH ..............................33 補充方案二：通過以太交換機 /協(xié)轉(zhuǎn)（含光纖收發(fā)器）接入城域接入層 PTN/IP RAN 34 補充方案三：通過以太交換機 /協(xié)轉(zhuǎn)（含光纖收發(fā)器）接入城域接入層 MSTP/SDH ..35 集團客戶高等級業(yè)務(wù)的內(nèi)網(wǎng)接入方式 ...............................................................................36 組網(wǎng)方案總結(jié) .......................................................................................................................36 集團客戶低等級業(yè)務(wù)場景 ...........................................................................