Migration Scenarios to NGN

Transcription

1 Internatinal Telecmmunicatin Unin ITU-T Migratin Scenaris t NGN Steven Lim Shue Ping Prduct Manager NGN Vice Slutins Siemens Cmmunicatins Fixed Netwrk Asia Pacific Reginal Headquarter ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May 2006

2 VIP The POTS f the Future The VIP market is taking ff in all regins f the wrld Embedded Telephny Subscriber Base 1,5 VBB IP-based NGN-based POTS Subscriber Lines (in billins) 1,0 0,5 TDM-based 0, Surce: ITU Main Telephne Lines and Dell Or Grup estimates (Q2/2005) ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

3 NGN Migratin Appraches ITU-T Tw steps t migrate t NGN: Sftswitch based PSTN Emulatin Highlights : 100 % preservatin f TDM vice features IP Multimedia Subsystem (IMS) based PSTN Simulatin Highlights : Sme imprtant vice features + NEW multimedia services ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

4 Definitin PSTN/ISDN Emulatin Mimicking a PSTN/ISDN netwrk frm the pint f view f a legacy terminal by an IP netwrk, thrugh a gateway. All PSTN/ISDN services remain available and identical (i.e. with the same ergnmics) such that end users are unaware that they are nt cnnected t a TDM-based PSTN/ISDN. PSTN/ISDN Simulatin The prvisin f PSTN/ISDN-like services t advanced terminals such as IP-phnes. There is n strict requirement t make all PSTN/ ISDN services available r identical, althugh end users expect t have access t the mst ppular nes, pssibly with different ergnmics. ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

5 NGN Architecture ITU-T Rf /R Netwrk Attachment Subsystem If Gm Cre IMS ISC Mw Mw AS AS S-CSCF P-CSCF MRFC Dh Mw Mi Sh Cx SLF Mr Mj Gq Mp Mn Resurce and Admissin Cntrl Subsystem Mg HSS Cx Dx Mi BGCF I-CSCF MGCF Rf /R Mw/Mk/Mm Ie SGF PSTN/ISDN Charging Charging Functins Functins Ib IBCF IWF Id Ia Ic Other IP Netwrks A-BGF MRFP T-MGF UE IP Transprt (Access and Cre) I-BGF ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

6 PSTN Emulatin Architecture ITU-T Management System SIP-I Sftswitch Signaling Gateway SS7IP SS7 Switch PSTN Netwrk SS7 POTS/ISDN STP H.248 POTS H.248/MGCP ISDN xdsl DLU IP H.248 MGCP Multi-Service Access Nde H.248 Resurce Server Media Gateway fr Trunks Digital Line Unit Other access equipment DLU V93 ISDN-PRI V5.2 Media Gateway fr Access POTS/ISDN xdsl IP Cre Netwrk Multi-Service Access Nde ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

7 Highlights fr Sftswitch based PSTN Emulatin Prvides current PSTN/ISDN services with an unchanged presentatin (100% feature preservatin) fr all interfaces Services/features prvided by call cntrl f Sftswitch H.248 cntrl f Access Gateways Cvered by existing ETSI TISPAN and ITU-T standards Emulatin dmain (sftswitch) and IMS sessin cntrl are interwrking via SIP Pssibility t re-use installed access equipments (POTS, ISDN, PRI, CAS etc) Prtectin f embedded subscriber base thrugh immediate migratin ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

8 Migratin Scenari Class 4 ITU-T TDM Netwrk TX Switch ther PSTN TX TX Switch ther PSTN LX Carriergrade IP Value prpsitin! Reductin f netwrk elements t be managed! Reductin f peratinal expenses (OPEX)! Efficient, simpler architecture based n IP ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

9 Migratin Scenari Class 5 ITU-T TDM Netwrk Switch ther PSTN Switch ther PSTN LX Carriergrade IP DLU IP Value prpsitin! Reductin f netwrk elements t be managed! Reductin f peratinal expenses (OPEX)! Grw n IP -> Future Prf slutin..! 100% preservatin f Class 5 features ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

10 PSTN Simulatin Architecture ITU-T Messaging Vice and Vide Telephny Unified Messaging Push t Talk Vide Mail IP Centrex Cnferencing Presence Vice Applicatin Server Applicatins SIP PSTN/ISDN HSS Diameter PSTN Simulatin SIP MGCF & AGCF PSTN Emulatin SS7 CSCF Trunk MGW PSTN IMS SIP H.248 Access GW DLU Bradband Subscribers xdsl, WiFi, GPRS, UMTS PBX Narrwband Subscribers & Legacy Access Equipments POTS, ISDN BRI, ISDN PRI ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

11 Highlights f PSTN Simulatin based n IMS Fcus n New Multimedia services Advanced Multimedia services like push-t-talk, vide cnferencing, IP centrex etc Cnverged services acrss different acccess dmains, eg: mbile netwrks, bradband wireline netwrks (xdsl, FTTH etc), WiFi Vice service is limited t simulatin, with SIP based vice applicatin server Mst cmmnly used and ppular vice services are simulated (eg: CLIP, Call Frwarding etc) PSTN Simulatin Interwrking with PSTN Emulatin dmain via SIP ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

12 IMS is a key element in NGN netwrk evlutin IMS (IP Multimedia Subsystem) is the cmmn cntrl infrastructure fr real-time and nn-realtime end-t-end multimedia services and any mixture f thse IMS is designed and standardized by 3GPP t integrate smthly with existing mbile and fixed netwrks New and existing services (e.g. Presence, Lcatin) and applicatins can be cnnected and cntrlled by IMS thrugh the standardized ISC interface By using SIP (Sessin Initiatin Prtcl) IMS based services can be accessed frm any IP/SIP capable device (UMTS, GPRS, WLAN, wireline users, etc. ) ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

13 IMS allws efficient applicatin integratin ITU-T N IMS: - repeated vertical integratin - n synergies! Specific Sign-n Authenticatin Specific Billing Specific Sessin Cntrl Specific Database per Applicatin Applicatin 1... n... Specific Sign-n Authenticatin Specific Billing Specific Sessin Cntrl Specific Database per Applicatin With IMS: - ne-time integratin Applicatin 1... n... IMS Single Sign-n Authenticatin One Billing One Multimedia Sessin Cntrl Glbal User Database Specific Netwrk Integratin Specific O&M Specific Netwrk Integratin Specific O&M Cmmn netwrk Integratin Cmmn O&M ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

14 GSM Terminal Mbile Centrex Server PLMN SIP Phne IMS as Service Delivery Platfrm Mbile IP Centrex IP Netwrk IP SftPhne Media Gateway Cntrller Call Sessin Cntrl Functin Gateways UMTS PDA UMTS Terminal Mbile IP Centrex Grup Hybrid Centrex Grups SIP phnes GSM / UMTS phnes (2G, 2.5G & 3G) Wide range f enterprise features t all this device types under a single platfrm Cmmn feature set t business grup users cnnected via fixed IP phnes/sftphnes, mbile phnes ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

15 IMS as Service Delivery Platfrm Vide Call Applicatins VIDEO TELEPHONY VIDEO PORTAL VIDEO MAIL VIDEO CONFERENCING Vide Telephny is prvided t SIP clients with interwrking with 3G. Vide prtal enables SIP/3G users t stream vide cntents frm prtals Vide Mail enables t access their recrded vide mails, and als t recrd a videmessage t answer calls Vide Cnferencing enables users t establish vide cnferences with up t 16 participants per cnference ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

16 IMS as Service Delivery Platfrm One Number Service VAS MM MAP SS7 SS7 SIP (ISC) ISUP PSTN HSS CSCF MGCF SIP MGW HLR MSC/VLR SIP GGSN/SGSN RAN SIP Phne Analgue Phne WiFi CPE DualMde Handset GSM/GPRS The Vice Applicatin Server is used t prvide call supplementary services fr all IMS subscribers. The Mbility Management Applicatin Server prvides raming between mbile netwrk and IMS netwrk ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

17 Migratin t NGN tday fr the benefits tmrrw ITU-T Defend Attack Explit Migratin twards NGN with PSTN Emulatin based n sftswitch IP based, flatten, simplified netwrk 100 % preservatin f TDM vice features Intrductin f IMS as service delivery platfrm Intrductin f SIP based, revenue generating applicatins t increase ARPU, eg: Mbile IP Centrex, Vide call applicatins etc Fast, simple intrductin f new services Prvides attractive service bundling Reduce churn rate with triple play services One platfrm fr vide, vice and data ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

18 Case Study KPN, Netherlands Case study Attack Pwered by Siemens Technlgy In Q2 2005, KPN launched 'Internetplusbellen' Defend Explit Leadership f cnverging cmmunicatins market The crnerstne f KPN strategy GO FOR VIP The bundle price fr this cmbined subscriptin csts less than tw separate subscriptins fr telephny and Internet. An innvative ttal package that ffers unlimited calls in the weekend t all fixed lines in the Netherlands and unlimited ADSL (800Kbs) in ne single subscriptin fr There has been a change f pace at KPN this year. We have put ur innvatin initiatives in high gear, and the rll ut f ur strategy t attack new revenue pprtunities, defend ur leading share fr traditinal services and explit a structurally lwer cst base is n track. We are delivering n ur prmises, with increased revenues and an imprving margin... With the launch f Cnsumer VIP services we tk the first steps in ur migratin t an all IP netwrk, the future basis fr all ur services." Ad Scheepbuwer, CEO f KPN, August, 2005 "In the years ahead KPN and its custmers will be entering an IP wrld in which cmmunicatin is set t change fundamentally. SIEMENS' strength in fixed and mbile netwrks was bviusly extremely imprtant t us. Eelc Blk, KPN managing bard member, December 2004 ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May

19 ITU-T Wrkshp n Next Generatin Netwrks Hani, Vietnam, May