Convergence & Disaggregation in Telecommunications

Transcription

1 Convergence & Disaggregation in Telecommunications Stuart Elby VP Network Architecture February 11, 2005

2 Disaggregation Advances in coding enable common abstractions for voice, video, data objects IP enables common distribution and communications treatments for multiple services Next generation signaling and control architectures isolate application from access The service is no longer tied to the device or network personalization of delivery Any service, any where 2

3 What s That? refrigerator phone TV game terminal camera voice comm. DC power supply wifi hotspot photo dist. music dist. cigarette lighter TV stereo IM chat room conference room 3

4 IP Enabled Services Convergence Voice Voice Voice Msg Msg Msg PSTN Wireless IP PSTN Wireless IP Access Common, Converged Data Infrastructure Protection of Customer Investment Broadband Access Voice Msg Conf Video Wireless Integration Applications Packet Voice Network Service Platforms IP Copper Fiber Wireless Network Access 4

5 Integrated Communications Interfaces Services 5

6 Network Strategy Design A Multi-Service Network To Serve All Customer Segments Minimize Labor Intensive Practices Through The Application Of New Technology Expand Wireless Broadband Access for all Market Segments Deploy Broadband Access for all Market Segments Upgrade Enterprise SONET and WDM Access for Data Services FTTP for Residence and SME EV-DO for All Market Segments (Data and Video Services) Deploy Service Platforms for Voice, Data and Video Vertical Services Use Converged Network For New Services Old Technology Will Be Migrated and Retired Within Financial And Regulatory Constraints 6

7 Verizon Wireline Network NG-OSS Application Servers Metro Backbone National Backbone OOF 7

8 Key Challenges - Reliability Network Reliability and Survivability Traditional PSTN is widely recognized for its high reliability, availability, and survivability Network element unavailability objectives of 1-3 minutes/year (GR-929) Element failure rates of to failures/year (GR-929) Overall termination downtime objectives of 28 minutes/year (GR-512) Fault-tolerant hierarchical routing architecture Need for fast restoration on IP end-to-end connectivity Require 50 ms restoration Need for fast IP route restoration techniques Need for geographic diversity IP network elements (e.g. routers) need to be made carrier-grade VoIP softswitch elements need to be highly reliable Need for redundancy within elements and fault-tolerance VoIP adjunct server elements also need to be highly reliable Firewalls, NATs, SBCs, authentication servers, proxies, etc. IP network needs to be monitored and managed for SLAs 8

9 Converged IP/MPLS Network Architecture LD Backbone CPS ATM, FR, EN OOF BBR BBR BBR BBR Video Complex Metro Backbone VoIP Complex AER BBR BBR AER AER VADS Peer AER LCR LCR LCR Access SER IP/MPLS IXC Internet SER Private Line Ethernet ATM/FR GWR DSL Wireless FTTP 9

10 Broadband Access Architecture Access Network Metro Backbone Network National Backbone Network 155M, 622M Fast Packet (ATM) 1.5M, 45 Fast Packet (FR & ATM) DSL Service Edge Router LATA Core Routers Application Edge Router Backbone Routers DSL Modem DSLAM Broadband Premises Gateway B/GPON 10M, 100M, 1G Ethernet OLT GigE 802.3ad Ethernet Aggregation Switch Ethernet/ SONET TLS Edge Switch Ethernet/ WDM 10

11 NGN Access: EV-DO Today Voice CDMA Richness & Complexity Text Messaging Photo Messaging & PIM Small file transfer 1XRTT (40-80 Kbps) Streaming Video Video Conferencing High Speed Access Video Conferencing Music & video content Multi-media Multi-player Gaming Large file transfer EV-DO ( Kbps; up 2 Mbps peak) Cover Cover million million POPs POPs by by year year end; end; million million covered covered in in Working Working with with content content providers on on GetItNow applications Developing 3G 3G multimedia services services e.g., e.g., VCAST VCAST Compatibility, Simplicity First to offer Wireless Broadband 11

12 Fiber-to-the-Premises (FTTP) Deployment Goal: 3M Homes Passed By EOY 2005 Objective Is Substantial Revenue Coverage Within 4 Years Superior Long Term Solution Benefits: Higher Revenue Potential Reduced Ongoing Maintenance Costs For OSP Lower Service Provisioning Costs Video Service National Coverage and 1M Homes Passed by EOY 2005 What Mosaic did for the Internet, FTTP will do for Broadband Multimedia 12

13 FTTP Reference Architecture VOD Server Internet PSTN Class 5 Switch TR08 GR303 CLEC GPON TR57 OLT & Voice Gateway IP/MPLS WDM 1 x 32 Splitter Hub ATM Softswitch Complex POTS SIP UA Data Ethernet Aggregation Switch Gateway Router Video IP Video Video Head End Digital & Analog Video EDFA Power & Battery 13

14 Initial In-Home Architecture Tel Wire RF Adapter Or MoCA for Upstream Coax CAT5 BHR RF Adapter Or MoCA for Upstream 14

15 Longer Term In-Home Architecture Integrated MoCA Coax BHR Integrated MoCA Integrated MoCA 15

16 FTTP Deployment Office Parks Small Businesses FTTP Overlay Residential Copper Distribution Small Businesses FTTP Full Build SAI X Splitter Hub Copper Feeder Splitter Splitter Circuit Switch Splitter Router Splitter OLT Central Office IP / MPLS Network Future Soft Switch 16

17 The Present Past APPLICATIONS AIN App Server TDM IP SS7 IXCs NETWORKS PSTN/SS7 Internet Separate worlds ACCESS Cu Any Broadband (DSL, Cable, etc.) CPE TDM WWW 17

18 Internet-Enhanced PSTN Verizon Services: iobi Home/Professional/Centrex APPLICATIONS AIN Applications cooperate App Server TDM IP SS7 IXCs NETWORKS PSTN/SS7 Internet Worlds collide ACCESS Cu Any Broadband (DSL, Cable, etc.) CPE TDM 18

19 Internet Telephony (VoIP) Verizon Services: VoiceWing APPLICATIONS AIN Applications cooperate App Server TDM IP SS7 IXCs Media Gateway Controller NETWORKS PSTN/SS7 Trunk Media Gateway Internet Phone calls on the Internet ACCESS Cu Any Broadband (DSL, Cable, etc.) CPE TDM 19

20 Managed VoIP Services Verizon Services: VoIP VPN, Hosted IP Communications, FTTP POTS APPLICATIONS NETWORKS AIN PSTN/SS7 IXCs Applications cooperate Trunk Media Gateway App Servers Verizon Managed IP/MPLS Network Internet Media Gateway Controller TDM IP SS7 Advanced Telephony on Verizon s Managed QoS Network ACCESS Cu Any Broadband (DSL, Cable, etc.) OLT Broadband IP: DSL, FTTP, T1, etc. ONU PBX CPE TDM FTTP POTS VoIP VPN HIPC 20

21 Target View Verizon Services: Full Class 4/5 Replacement APPLICATIONS Integrated Applications Environment TDM IP Application Servers SS7 Telephony is just another application on a shared IP network Application Infrastructure SIP Media Gateway Controller NETWORKS TDM Carriers Session Controller SIP Trunk Gateway H.248 IP Carriers, Internet SharedVerizon IP/MPLS Network Managed Other networks, e.g., cellular, Internet, cable Session Border IP/MPLS Network Session Border Controller (ILEC &Controller GNS) SIP CPE ACCESS Line Gateway Copper, DLC Graphical User Interface (iobi) TDM Phone (POTS, BRI) Other access types, e.g., cellular, cable Broadband IP: DSL, FTTP, T1, etc. Integrated Access Device TDM or IP PBX Other CPE types, e.g., video, cellular, data SIP Phone 21

22 Key Challenges - Reliability Wireline/Wireless Integration Service Integration Leads to Network Integration One Mail Box Message Notification (VM and Call Logs) Across Wireline/Wireless Boundary Custom Audible Services (aka Ring-back tones) Simultaneous Ring/Alerting Intelligent Routing Options AIN / WIN iobi / Broadsoft Presence Servers Multi-Mode Handsets (WiFi VoIP, CDMA) EV-DO Access Integration with Enterprise Advance Data Services 22

23 Key Challenges - Reliability W/W Common Service Architecture Near Term Cellular MSC HLR VLR WIN TCAP EVDO Iobi Application Environment Data DSL Modem IP Voice Mail DSL Class 5 Switch PSTN OSP WIN SCP AIN ISCP AIN TCAP 3 rd Party Applications 3 rd Party Applications 3 rd Party Applications Services Layer 23

24 Key Challenges - Reliability Wireline/Wireless Integrated Architecture Application Web Apps SIP Apps AIN Apps OAM&P Service Mgr Session Control SIP SIP HSS Home Subscriber Server SIP Network Call Session Control Function CSCF Media Server Shared IP/MPLS Network Media Servers Session Border Controllers Access Access Network CPE TDM Phone IAD SIP Phone TDM or IP PBX Wireless 24

25 Summary Evolving towards an always-on, broadband network that provides PSTN levels of availability Evolving towards a services infrastructure that delivers applications and services to customers when and where they want Service control can be provided to the customer, the network provider, or a third party service provider CPE Service Disaggregation The Information Age IP Network Convergence 25