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Network Architecture for WiMAX applications - apricot PDF

20 Pages·2005·5.23 MB·English
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Network Architecture for WiMAX applications Robert Healey Senior Product Manager, APAC [email protected] Copyright © 2003 Juniper Networks, Inc. Proprietary and Confidential www.juniper.net 1 Agenda ! Mobile market trends in APAC ! What’s happening in mobile infrastructure network (and why!)? • Packet optimization for 2G networks • Packet evolution for 3G • Operator case studies ! WiMAX – Friend or Foe? • WiMAX backgrounder • Positioning compared with cellular ! Summary – Key Trends for 2005 Confidential and Internal Copyright © 2004 Juniper Networks, Inc. 2 Mobile Operator Evolution Transformation Cost effective TDM ATM IPv4/6 MPLS Transport Backbone PPaacckkeett RRAANN Location-based MMS Services Corporate SMS/MMS Intranet & Email Data Services and eCommerce $$ Wireline Displacement Circuit Packet Gaming and Voice Voice Entertainment Confidential and Internal Copyright © 2004 Juniper Networks, Inc. 3 Applications and Drivers ! Mobile operators actively building out IP/MPLS core networks • Capex and ongoing opex savings – consolidate multiple networks • Migration of SS7 over IP using Sigtran techniques • High Availability infrastructure to support VoIP; PTT launching now ! Wireless data services picking up • Recent growth driven by new terminals & applications • Required to counter declining voice ARPU and competition “AIS launching 40 new data applications this year as part of an objective to double non-voice revenues” CEO Somprasong Boonyachai ! Access costs still major opex factor – looking at means to optimise ! Increasing corporate market for mobile data ! Lots of Hype on WiMAX… Confidential and Internal Copyright © 2004 Juniper Networks, Inc. 4 Agenda ! Mobile market trends in APAC ! What’s happening in mobile infrastructure network (and why!)? • Packet optimization for 2G networks • Packet evolution for 3G • Juniper operator case studies ! WiMAX – Friend or Foe? • WiMAX backgrounder • Positioning compared with cellular ! Summary – Key Trends for 2005 Confidential and Internal Copyright © 2004 Juniper Networks, Inc. 5 CDMA – Optimising 2G with IP Backhaul ! Today’s challenge • Optimise established 2G TDM RAN to handle continued scaling ! Objective: Reduce RAN Opex by moving to IP backhaul for 2G voice and data • 10-30% savings in compression moving to IP Confidential and Internal Copyright © 2004 Juniper Networks, Inc. 6 Packet Architectures for 3G CDMA2000 EV-DO – IP based ! 3GPP2 specifies either ATM or IP transport from EV-DO base station ! EV-DO deployments nearly all now based on native IP ! Aggregation IP layer – key requirements – scaling and High Availability ! APAC Mobile operators already deploying GE nxE1 GE/FE Ch STM-1 BSC/PCF Ethernet SDH switches EVDO Base EVDO Mux IP Aggregation Layer Stations users Service Provider Routers Confidential and Internal Copyright © 2004 Juniper Networks, Inc. 7 Example Asian UMTS-WCDMA Operator New IP-MPLS Multiservice core All Data and Voice supported on Single 3G Media Gateway MPLS Network IuCS (VoIP trunking) IuCS Strict SLA for VoIP – MPLS Backbone millisecond recovery IuCS, Iur PoS & GE times required – use of advanced IP IuPS RNC techniques IuPS IuPS IuCS 3G Media Gateway IuCS (VoIP trunking) 3G SGSN IuCS IuP S Leverages ATM over MPLS RNC ATM STM-1 Removes need for separate ATM network! Confidential and Internal Copyright © 2004 Juniper Networks, Inc. 8 Example Asian UMTS-WCDMA Operator Advanced High Availability design MPLS BFD running on router- Backbone router GE links for PoS & GE 1+1 SDH millisecond failure Protection 3G detection MGW/ Graceful restart enabled between RNC/ routers – enabler for network wide 3G hitless software upgrades SGSN MPLS Traffic Engineering with Fast Reroute for Strict SLA for VoIP – millisecond recovery millisecond recovery times required: required advanced router techniques! Confidential and Internal Copyright © 2004 Juniper Networks, Inc. 9 Asian Mobile Operator: New service – Mobile VPN access ! Objective – provide VPN access for variety of mobile corporate users ! Outsource mobile remote access management from corporates, and CPE aggregate users in a layer 3 VPN ! Solution: Mobile users mapped into corporate VPNs IPSEC / L2TP (RFC 3193) MPLS Backbone WiFi User with Windows Client L2TP Tunnel 3G and 2G users Gateway SSL Access growing LAC MPLS PE in interest also Confidential and Internal Copyright © 2004 Juniper Networks, Inc. 10

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Proprietary and Confidential www.juniper.net. 1. Network Architecture for. WiMAX applications. Robert Healey. Senior Product Manager, APAC rhealey@juniper.
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