【資料名稱】：廣東移動(dòng)佛山移動(dòng)交換網(wǎng)分析與優(yōu)化專案服務(wù)項(xiàng)目總結(jié)報(bào)告

【資料作者】：愛立信

【資料日期】：2003

【資料語(yǔ)言】：中文

【資料格式】：PDF

【資料目錄和簡(jiǎn)介】：

很經(jīng)典的一份交換網(wǎng)優(yōu)報(bào)告。

記得在曾經(jīng)在廣東做網(wǎng)優(yōu)的時(shí)候，與廣東移動(dòng)討論，做網(wǎng)優(yōu)，必須先做基站和交換調(diào)測(cè)，最好還具備傳輸?shù)闹�識(shí)，才能做網(wǎng)優(yōu)，大家一致認(rèn)同。
但現(xiàn)在，很多客戶指責(zé)工程師不懂得做網(wǎng)優(yōu)，沒有效果；工程師也指責(zé)客戶不懂網(wǎng)優(yōu)，沒有配合。
可能，全面掌握網(wǎng)絡(luò)后，大家的分歧會(huì)少些，工作更有效率，至少不會(huì)每天加班啊。

建議做網(wǎng)優(yōu)的同學(xué)們，學(xué)學(xué)交換的知識(shí)。
附件比較舊，涉及到保密內(nèi)容，不敢提前公布。

目錄：
1 工作概述.........................................................................................................................................................5
2 交換網(wǎng)絡(luò)信令鏈路性能分析和評(píng)估..............................................................................................................7
2.1 如何利用統(tǒng)計(jì)和其它手段分析交換機(jī)各網(wǎng)元不同信令（ISUP、CAP、MAP、TUP、BSSAP、SCCP等）的運(yùn)行情況.........................................................................................................7
2.1.1 ISUP...................................................................................................................................7
2.1.2 TUP...................................................................................................................................8
2.1.3 MAP.....................................................................................................................................8
2.1.4 SCCP.................................................................................................................................17
2.1.5 TCAP.................................................................................................................................19
2.1.6 OBJECT TYPE中應(yīng)周期性關(guān)注的COUNTER的解釋.......................................................20
2.2 評(píng)估現(xiàn)網(wǎng)信令鏈路負(fù)荷的使用情況，給出評(píng)估的方法和標(biāo)準(zhǔn)..........................................23
2.3 如何優(yōu)化配置，均衡信令鏈路負(fù)荷，給出優(yōu)化的方法和流程..........................................24
2.3.1 首先要對(duì)整個(gè)信令網(wǎng)絡(luò)有一個(gè)詳細(xì)的了解,做一個(gè)信令網(wǎng)絡(luò)圖................................24
2.3.2 用OBJECT TYPE C7SL1計(jì)算出每個(gè)信令鏈路的信令負(fù)荷.如果發(fā)現(xiàn)有信令負(fù)荷不均衡,請(qǐng)分析其具體情況....................................................................................................................24
2.3.3 檢查SCCP層信令負(fù)荷分擔(dān)是否定義,用指令C7GCP...................................................25
2.3.4 檢查MTP層信令負(fù)荷分擔(dān)是否定義,用指令C7RSP.....................................................25
2.3.5 檢查信令路由中信令鏈路的數(shù)量,建議其數(shù)量為2的偶次方....................................25
2.4 C7SL1統(tǒng)計(jì)中MSUERR的解讀和應(yīng)對(duì).....................................................................................26
2.5 動(dòng)態(tài)信令負(fù)荷分配不平均的原因..........................................................................................27
2.5.1 SCCP層負(fù)荷分擔(dān)原理.....................................................................................................27
2.5.2 Protocol Class 0..........................................................................................................27
2.5.3 Protocol Class 2..........................................................................................................32
2.5.4 結(jié)論.................................................................................................................................33
2.5.5 MTP負(fù)荷分擔(dān)原理...........................................................................................................33
2.5.6 目的地(DESTINATION)負(fù)荷分擔(dān)....................................................................................33
2.5.7 現(xiàn)網(wǎng)情況..........................................................................................................................35
2.6 信令負(fù)荷的計(jì)算公式。..........................................................................................................38
2.7 C7 event Report的使用...........................................................................................................38
2.7.1 C7 EVENT REPORT簡(jiǎn)介...................................................................................................39
2.7.2 具體情況分析..................................................................................................................41
3 CP 負(fù)荷的研究和優(yōu)化.................................................................................................................................51
3.1 概要.........................................................................................................................................51
3.2 分析影響CP負(fù)荷的原因和影響CP負(fù)荷的各項(xiàng)因素權(quán)重..................................................51
3.2.1 CP處理能力的概念........................................................................................................51
3.2.2 CP 負(fù)荷的統(tǒng)計(jì)方法........................................................................................................53
3.2.3 命令PLLDP.......................................................................................................................54
3.2.4 OBJECT TYPE的統(tǒng)計(jì).......................................................................................................55
3.2.5 TEST SYSTEM測(cè)試系統(tǒng)...............................................................................................64
3.2.6 影響CP負(fù)荷的原因........................................................................................................66
3.2.7 影響CP負(fù)荷各項(xiàng)因素的權(quán)重........................................................................................66
3.3 評(píng)針對(duì)不同CP類型分析各項(xiàng)影響因素（例如話務(wù)量、短信、用戶數(shù)等）組合的門限值 68
3.4 研究智能網(wǎng)用戶數(shù)量對(duì)系統(tǒng)容量的影響..............................................................................73
3.5 研究SSF功能對(duì)系統(tǒng)負(fù)荷的影響，......................................................................................74
3.6 給出不同CP類型的最佳負(fù)荷................................................................................................75
3.7 提出CP高負(fù)荷的緊急處理措施和流程................................................................................75
3.7.1 愛立信交換機(jī)負(fù)荷觀察/監(jiān)測(cè)及控制............................................................................75
3.7.2 CP高負(fù)荷的緊急處理措施和流程.................................................................................77
3.8 針對(duì)具體的話務(wù)模型，給出如何合理配置MSC和BSC的CP類型的方法........................78
3.9 研究CP限呼發(fā)生后的話務(wù)損失計(jì)算辦法............................................................................86
3.10 研究預(yù)測(cè)CP負(fù)荷的模擬方法............................................................................................86
4 SAE的優(yōu)化....................................................................................................................................................87
4.1 SAE簡(jiǎn)介................................................................................................................................87
4.2 給出監(jiān)視各類SIZE使用情況的方法和手段（如統(tǒng)計(jì)，告警監(jiān)控等等）給出開啟各類SAE監(jiān)視的推薦值。...........................................................................................................................87
4.2.1 SAE控制類型...................................................................................................................88
4.2.2 各種SAE控制類型工作原理和方法..............................................................................88
4.2.3 各類監(jiān)視的門限值..........................................................................................................93
4.3 評(píng)估現(xiàn)網(wǎng)中各類SAE設(shè)置是否合理給出判斷是否合理的標(biāo)準(zhǔn)..........................................93
4.3.1 系統(tǒng)的控制類型與現(xiàn)網(wǎng)不一致......................................................................................93
4.3.2 CONS1的狀態(tài)...................................................................................................................95
4.3.3 CONS2的NIE修改.........................................................................................................106
4.3.4 THRESHOLD的定義.........................................................................................................106
4.3.5 沒有方法監(jiān)測(cè)的功能塊................................................................................................106
4.4 對(duì)現(xiàn)網(wǎng)的SAE進(jìn)行優(yōu)化，給出優(yōu)化的流程和方法............................................................107
4.5 SAE擁塞的信令追蹤方法.....................................................................................................108
4.6 告知SAE監(jiān)視可以開啟的限制因素....................................................................................110
4.7 介紹SAE的容量計(jì)算（介紹工具EASYSAE的使用方法）................................................111
4.8 話務(wù)有關(guān)的功能塊................................................................................................................111
5 交換機(jī)TIMER的優(yōu)化.................................................................................................................................117
5.1 給出如何查看交換機(jī)各種TIMER設(shè)置情況的方法............................................................117
5.1.1 A-Interface, Section A: Location Updating, IMSI Attach and IMSI Detach Procedures...................................................................................................................................117
5.1.2 A-Interface, Section B: Basic Call Control Procedures..............................117
5.1.3 A-Interface, Section F: Short Message Service Procedures........................118
5.1.4 A-Interface, Section G: Base Station System Management Application Part Procedures...................................................................................................................................119
5.1.5 ISUP TIMER....................................................................................................................120
5.1.6 切換的TIMER.................................................................................................................120
5.2 根據(jù)現(xiàn)網(wǎng)交換機(jī)各種TIMER的設(shè)置情況，分析設(shè)值的合理性和對(duì)網(wǎng)絡(luò)性能的影響。給出判斷是否合理的標(biāo)準(zhǔn)....................................................................................................................122
5.3 優(yōu)化TIMER的設(shè)置，給出優(yōu)化的方法、調(diào)整的原則......................................................123
5.4 說明某些話務(wù)統(tǒng)計(jì)中的統(tǒng)計(jì)關(guān)鍵點(diǎn)，如：中繼路由統(tǒng)計(jì)（RLOSS或TRUNKROUTE）中話務(wù)量與TRD統(tǒng)計(jì)中的話務(wù)量的統(tǒng)計(jì)點(diǎn)；以及無線話務(wù)量與BSCI/O路由的話務(wù)量的統(tǒng)計(jì)點(diǎn) 131
5.4.1 中繼路由中話務(wù)量的統(tǒng)計(jì)點(diǎn)........................................................................................131
5.4.2 TRD統(tǒng)計(jì)中話務(wù)量的統(tǒng)計(jì)點(diǎn).......................................................................................131
5.4.3 無線話務(wù)量與BSCI/O路由的話務(wù)量的統(tǒng)計(jì)點(diǎn).........................................................133

2013年7月17日完成上傳。