【正文】 .........................................................................21 引言 ...............................................................................................................................................3 研究背景 ...............................................................................................................................3 名詞解釋 ...............................................................................................................................42 中國電信計費系統(tǒng)現(xiàn)狀分析 ..........................................................................................6 業(yè)務(wù)現(xiàn)狀分析 .......................................................................................................................6 網(wǎng)絡(luò)現(xiàn)狀分析（重點針對廣東電信） ...............................................................................8 統(tǒng)一預(yù)付費平臺 ........................................................................................................8 3G 實驗網(wǎng)和業(yè)務(wù)網(wǎng) ...................................................................................................9 支撐系統(tǒng)現(xiàn)狀分析 .............................................................................................................10 計費帳務(wù) ..................................................................................................................10 IBSS 系統(tǒng)： .............................................................................................................11 CRM...........................................................................................................................13 SRD ...........................................................................................................................13 163 后臺系統(tǒng) ...........................................................................................................13 省計費結(jié)算系統(tǒng) ......................................................................................................15 承載網(wǎng)現(xiàn)狀分析 .................................................................................................................163 3G 帶來的新業(yè)務(wù)需求 ......................................................................................................184 OCS 在線計費系統(tǒng)方案概述 .........................................................................................18 OCS 與現(xiàn)有計費系統(tǒng)的關(guān)系 ..............................................................................................18 計費方案一（SCP＋HotBilling） ..........................................................................18 計費方案二（HotBilling） .....................................................................................19 計費方案三（OCS＋HotBilling＋SRD ） ..............................................................21 OCS 體系架構(gòu) ......................................................................................................................22 OCS 業(yè)務(wù)流程 ......................................................................................................................24 OCS 系統(tǒng)功能 ......................................................................................................................25電信實時計費系統(tǒng)研究第 II 頁 5 OCS 建設(shè)方案 .........................................................................................................................27 初期目標(biāo) ..............................................................................................................................27 新建 OCS 方案 .....................................................................................................................27 功能架構(gòu) ..................................................................................................................27 通用接口層 ..............................................................................................................28 會話控制 ..................................................................................................................28 余額管理 ..................................................................................................................28 批價管理 ..................................................................................................................28 計費網(wǎng)關(guān) ..................................................................................................................29 系統(tǒng)管理 ..................................................................................................................29 OCP 接口 ..................................................................................................................29 CDR 接口 ..................................................................................................................29 IF2 接口 ..................................................................................................................29 Bo 接口 ...................................................................................................................29 SRD 接口 ................................................................................................................29 系統(tǒng)架構(gòu)和部署 .....................................................................................................29 網(wǎng)絡(luò)組織 .................................................................................................................30 網(wǎng)絡(luò)配套改造建設(shè)方案 .....................................................................................................31 支撐系統(tǒng)配套改造方案 .....................................................................................................31 CRM...........................................................................................................................31 SRD ...........................................................................................................................31 統(tǒng)一充值平臺 ...........................................................................................................32 新業(yè)務(wù)實現(xiàn)方案 ...............................................................................................................