【正文】 andard proposed jointly to ANSI ITU by Nortel, Lucent, SBC. Supported by ATT, France Tele and others. Functional Network Model 3/1/2023 60 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Reference Network Scenario AAL1 AAL1 AAL1 TDM Switch SMG 4000 SMG 4000 TDM Switch TDM Switch Call Server Call Server Call Server ISUP+ ISUP ISUP ISUP SMG 4000 ISUP+ ISUP+ SMG 4000 TDM Switch 3/1/2023 61 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 STPs Carrier Switches Level 3 Customers SS7 G/W Trunking Gateways Level 3 IP Network SS7 G/W SNMP Manager G/K TCAP INAP CSTA IP TCAP ISUP CSTA IP 800/LNP/ LIDB SCPs Network Event Database ( CDRs ) Other OSS Databases SNMP Manager ThirdParty Service Applications STPs Carrier Switches Level 3 Customers Services Intra SS7 G/W Trunking Gateways Access Gateways Access Gateways SIOS Soft Switch To Service Bureaus/Native SS7 SCPs TGW AGW TGW SGW SGW AGW MGC NMS SEN, SCP, SMP, ... Level 3 Network Architecture A T M S e r v i c eA d a p t a t i o nA T M S w i t c hC e n t r a l O f f i c eC e n t r a l O f f i c eC e n t r a l O f f i c eC e n t r a l O f f i c eF I T LT e r m i n a lD S L A MI P N e t w o r k慖 P A w a r e ?A T M C o r eN e t w o r kC o r e V o I P / R A SG a t e w a yS e r v i c e s C o n t r o l C a p a b i l i t i e sS C PI S PI S PMCMCS T PM e d i a G a t e w a yC o n t r o l l e r sT a n d e m G a t e w a y P r i v a t e L i n e sI n t e g r a t e d B u s i n e s sA c c e s s A T M S w i t c hD is t r i b u t e d S e r v i c e C o n t r o lC a p a b i l it i e s I n c l u d e N e w 揑 N?F e a t u r e s o f P r o g r a m m a b l eG a t e w a y C o n t r o l le r s a n d W e b b a s e d M a n a g e m e n t a n d C o n t r o lo f S e r v i c e sMGC, SGW, SEN DGW,MSW,RC AGW,TGW DGW, MSW, RC DGW, MSW, RC TGW CSW,RC Bell South Future Architecture 演講完畢，謝謝觀看！ 。未來的趨勢(shì)將主要按數(shù)據(jù)業(yè)務(wù)來 設(shè)計(jì)網(wǎng)絡(luò)，但可用來傳電話，數(shù)據(jù)和圖象業(yè)務(wù)。 3/1/2023 15 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 面臨的可能挑戰(zhàn) （ 2） 業(yè)務(wù)挑戰(zhàn) ?寬帶業(yè)務(wù)（近期的選擇）： 接入： xDSL/Cable Modem/Ether/ATM25。3/1/2023 1 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 3/1/2023 2 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 圖 1 我國(guó)電信網(wǎng)的構(gòu)成 公用無線數(shù)據(jù)網(wǎng) BISDN FRN DDN NISDN PSTN 業(yè)務(wù)網(wǎng) 支撐網(wǎng) 同步網(wǎng) 電信管理網(wǎng) 傳送網(wǎng) 話音平臺(tái) 智能網(wǎng) 公共業(yè)務(wù)平臺(tái) 電子郵件 /傳真 存儲(chǔ)轉(zhuǎn)發(fā) /EDI 語音信息臺(tái) 多媒體信息服務(wù)臺(tái) IP網(wǎng) 移動(dòng)網(wǎng) 3/1/2023 3 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Annual Revenue $392$ 2 , 2 4 2 $ 2 , 5 9 3$ 1 7 , 6 7 8$ 5 3 , 2 2 3$$ 1 0 , 0 0 0$ 2 0 , 0 0 0$ 3 0 , 0 0 0$ 4 0 , 0 0 0$ 5 0 , 0 0 0$ 6 0 , 0 0 0L ev el 3 Q w es t F r o n t i er M C I W o r l d c o m A T TA n n u a l R ev en u e i n M U S D ( 1 9 9 8 ) Annual Ine $ ( 8 4 4 )$317$ ( 2 , 6 6 9 )$ 7 , 4 8 7$ ( 1 2 8 )$ ( 4 , 0 0 0 )$ ( 2 , 0 0 0 )$$ 2 , 0 0 0$ 4 , 0 0 0$ 6 , 0 0 0$ 8 , 0 0 0L ev el 3 Q w es t F r o n t i er M C I W o r l d c o m A T TA n n u a l I n c o m e i n M U S D ( 1 9 9 8 )Note: Level 3 had high Extraordinary Revenues in 1998 that more than pensated the Loss on Ordinary Operations shown in this chart MCI World Revenue mix ATT revenue mix ? ATT revenue mix was the following in 1998: ?Business services: 23,611 Million USD (or 44% of the revenue) ?Consumer services: 22,885 Million USD (43%) ?Wireless services: 5,406 Million USD (10%) ?Other services: 1,321 Million USD (2%) ? ATT is just starting to introduce Broadband Inter Services in their reporting. These accounted for % of their revenues in the 1Q99. ? Voice: 9192 9293 9394 9495 9596 – Main telephones in service: +36% +51% +57% +49% +35% ? Data: – Number of Inter hosts: +277% +820% – Number of PCs: +37% +55% +44% +42% ? Conclusion – There is still a lot of growth in traditional voice – The revenues largely e from the voice traffic Traffic volume growth of voice and data The China figures, as proposed by ITU 3/1/2023 8 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Expected growth of VoiceoverIP ? By 2023, VoIP is expected to be % of total voice traffic (national+ international) (Inter + IP managed works) For China the forecast is % in 2023。 3/1/2023 14 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 面臨的可能挑戰(zhàn) （ 1） IP帶來的技術(shù)挑戰(zhàn) ?QOS， COS的提供策略 （ IPQos、 ATMQos）； ?標(biāo)準(zhǔn)的把握： CIPOA， MPLS， RSVP， Signaling等等； ?Integrated Services， Differentiated Services； ?Multicast； ?xDSL引入策略 （ PVC、 SVC、 PPP、 Cell/IP at desk等等）； ?技術(shù)試驗(yàn)的內(nèi)容、范圍、方式和步驟； ?寬帶業(yè)務(wù)的引入策略。 3/1/2023 16 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 新形勢(shì)對(duì)電信網(wǎng)的要求 (1) 1).目前的電信網(wǎng)是為電話設(shè)計(jì)的，正在改造以便 傳數(shù)據(jù)和