Copyright © 2003 Juniper Networks, Inc. Proprietary and Confidential www.juniper.net 1
Network Architecture for WiMAX applications
Robert Healey Senior Product Manager, [email protected]
2Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
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
3Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
Mobile Operator Evolution
TDM ATM Transport
Circuit Voice
SMS/MMS
Packet Voice
MMS
Cost effectiveIPv4/6 MPLS
Backbone
Location-based Services
Corporate Intranet & Email
eCommerce
Gaming and Entertainment
Data Services andWireline Displacement$$
Transformation
Packet RANPacket RAN
4Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
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…
5Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
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
6Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
! 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
CDMA – Optimising 2G with IP Backhaul
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Packet Architectures for 3GCDMA2000 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
IP Aggregation LayerService Provider Routers
EVDO Base Stations
Ethernet switches
EVDO users
GE
SDH Mux
BSC/PCF
GE/FECh
STM-1
nxE1
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Example Asian UMTS-WCDMA OperatorNew IP-MPLS Multiservice core
ATM STM-1
MPLSBackbonePoS & GE
3G Media Gateway(VoIP trunking)
RNC
3G Media Gateway(VoIP trunking)
3G SGSN
RNC
IuCS
IuCS
IuCS, Iur
IuPS
IuPSIuPS
IuCS
IuCS
IuCSIuPS
Leverages ATM over MPLSRemoves need for separate ATM network!
All Data and Voicesupported on Single MPLS Network
Strict SLA for VoIP –millisecond recovery times required – use of advanced IP techniques
9Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
Example Asian UMTS-WCDMA OperatorAdvanced High Availability design
MPLSBackbonePoS & GE
MPLS Traffic Engineeringwith Fast Reroute formillisecond recovery
BFD running on router-router GE links for millisecond failure detection
1+1 SDH Protection3G
MGW/
RNC/
3G SGSN
Graceful restart enabled between routers – enabler for network wide hitless software upgrades
Strict SLA for VoIP –millisecond recovery times required: required advanced router techniques!
10Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
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 aggregate users in a layer 3 VPN
! Solution:
TunnelGatewayMPLS PE
WiFi User with Windows Client
IPSEC / L2TP (RFC 3193)
3G and 2G users
MPLS Backbone
LAC
L2TP
Mobile users mapped into corporate VPNs
CPE
SSL Access growing in interest also
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Value Add OfferingTarget industry verticals eg- transportation
! Strong proposition – New Revenues and Competitive Differentiator for Mobile Operator
! Central IT manager control and reporting via Policy Server Web portal
! Apply company policies in real time without manual intervention
! Applicable to remote telemetry, sales dispatch, fleet management etc
Shipping Company VPN
Policy ServerPolicy Server
Central Control
Remote Monitoring
2G/3G
ERX Tunnel Gateway
12Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
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
13Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
WiMAX – So…what is it?
! New set of efficient radio technologies enabling broadband connectivity over wireless
! Fixed and mobile variants! Promoted heavily by Intel – growing industry
support! Designed to operate in both licensed AND
unlicensed spectrum – key difference! Just access technology – still needs IP subscriber
management to control and deliver services
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WiMAX – The Intel View…
NomadicMetrozone
EnterpriseCampus Piconet
Fixed Indoor
Mobile
ACCESSACCESS802.16802.16--2004 & 802.16e2004 & 802.16e
Wi-Fi* Hotspot
Wi-Fi*
Fixed Outdoor
Backhaul
• Volume:100’s of thousands• Deployable: Q2’05 (16e in ‘06)
• Fixed Access• Data Focused• RG’s for PC Clients
• Volume: 100’s of thousands• Deployable: 2006• Fixed and Portable access• Data, some Voice• RG’s & PC Cards
• Volume: Millions• Deployable: 2007• Mobile Access• Data, Audio, Voice, Video?• Client Integration for PC’s &
Handhelds
PORTABILITYPORTABILITY802.16e 802.16e
MOBILITYMOBILITY802.16e 802.16e
Source - Intel
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Contrasting WiMAX, WiFi and 3G
Mobile Wireless Broadband
Mobile Wireless Broadband
Portable Wireless Broadband
Fixed Wireless Broadband (eg-DSL alternative)
Wireless LANApplication
NowNowExpected ratification in Q3 2005, products in 2006
Ratified in June 2004, products in 2005
NowAvailability
1800, 1900, 2100 MHz
400,800,900, 1700, 1800, 1900 2100 MHz
2-6 GHz2-11 GHz 2.4 GHzTypical Frequency bands
2Mbps(10+ Mbps for HSDPA)
2.4 Mbps (higher for EV-DV)
30Mbps (10 MHz band)
75 Mbps(20 MHz band)
54 MbpsApproximate maximum throughput
12kms12kms5kms8kms100 metersApproximate maximum reach
WCDMA / UMTSCDMA2000 1x EV-DO
WiMAX 802.16e
WiMAX 802.16-2004*
WiFi 802.11g
In future WiMAX 802.16e will compete with UMTS/HSDPA and EV-DVKorea will be first to deploy mobile broadband with WiBro in 2.3 GHz spectrum from 05
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Mobile Carrier Service And Network Evolution
17Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
Summary – What to look for in 2005! WiMAX for fixed line alternative will go into trials and early deployments
• Valid niche… little or no overlap with 3G
! WiMAX mobile broadband is still 2-3 years away
• Industry will look to Korea as test, device availability and costs key
! 3G operators accelerate their move to new packet architectures
• Drivers – new services, reduced costs, voice & signaling move to IP
• IPv6, High Availability and ATM over MPLS are key
• Technology now proven – successful deployments today
! Continued value add to corporate space – eg SSL VPN
! IP Router manufacturers like Juniper are active and key players in new mobile infrastructure
19Copyright © 2004 Juniper Networks, Inc. Confidential and Internal
IPv6 requirements in the network
SignalingMedia
V6 GGSN
PDF I-CSCF S-CSCF
DNS DNS
SIPServer
Terminal
P-CSCF
! From 3GPP Release 5 – IMS services should include IPv6 support; interwork with wireline v6 services (eg Japan)
! Mobile Operators network hardware needs to be IPv6 capable today
V6/V4 backbone V6/V4 backbone