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					Mobile IP & IPv6 in 3G
UMTS/cdma2000 Mobile Networks
Maximizing your Packet Data Network
Nortel Networks
Wireless Product Marketing
CD Lee



            NORTEL NETWORKS CONFIDENTIAL
                    April 2003
• IP version 6 - The Next Generation Internet
• IPv6 in CDMA Operation
• IPv6 in UMTS Operation
• An Overview Of Nortel CDMA/WLAN
  UMTS/WLAN Mobile IP Solutions
• Summary




               NORTEL NETWORKS CONFIDENTIAL
                       April 2003               1
IP version 6
The Next Generation Internet




        NORTEL NETWORKS CONFIDENTIAL
                April 2003             2
     Introduction – Business Drivers
• Mandating of IPv6 for mobile handsets and core
  networks of both UMTS R5 and CDMA 2000
• General IPv4 address shortage particularly for
  delivering ‘always on’ and ‘push’ Internet services to
  large numbers of mobile handsets in the push of UMTS
  into China and other countries of Asia
• Seen by Governments as solution to business
  constraints in both Europe (especially EU commission)
  and AsiaPac (especially Japan, Taiwan and S.Korea)
  caused by low availability of globally routable IPv4
  addresses
       There is no incentive for enterprises to reequip with IPv6 at present :
Minimal extra capabilities (most retro-fitted to IPv4), need for new equipment
                             Lack of common application support (Microsoft

                         NORTEL NETWORKS CONFIDENTIAL
      Nortel IPv6 Position
• Nortel is fully behind IPv6
  – Nortel was actually the first company to release IPv6 in 1997

• Today Nortel believe that IPv6 is driven by the
  wireless business, specifically UMTS and CDMA2000

• Nortel is actively developing v6 on the platforms
  most relevant to that architecture.

• Nortel are targeting UMTS Release 5 as a date for
  commercially available products.

• Nortel believe that IPv4 and IPv6 will coexist in the
  network for the foreseeable future and we will
  support interoperation between them to protect our
  customers existing investments.
                        NORTEL NETWORKS CONFIDENTIAL
IPv6 in CDMA Operation




        NORTEL NETWORKS CONFIDENTIAL
                April 2003             5
  cdma2000 IPv6 Standards Status
• Packet Data Standards (TIA IS-835-B)
   – Only Simple IPv6 (i.e., no Mobile IPv6 yet)
       • Subset of IPv6 defined for both mobile and PDSN
   – Transport (tunnel layer IOS IS-2001) independent of application layer.
      – The RAN and PDSN may natively run IPv4 or IPv6, or both,
        independent of the MS IP (protocol) version
      – The PCF and PDSN may support connections on either IPv4 or IPv6.
   – Transition mechanisms (not yet defined)
• 3GPP2 Multimedia (i.e. IS-835C)
   – Mostly work in progress…
       •   Mobile IPv6
       •   Transition Mechanisms
       •   Other Nodes (i.e. SIP Server, etc.)
       •   Transport layer (i.e. future ISO release)


                             NORTEL NETWORKS CONFIDENTIAL
          3GPP2 ALL-IP Network Architecture Model
                                                   Network                                                                 Service
                                    Subscription    Policy
               EIR           DSI
                                      Profile       Rules          . . .                                                  Application
                                    Databases
                         1          2 3 4                    5             6                                    8


Potential                                            Subscription
                                                      Quality of
                                                                                          Network
                                                                                          Capability
                                                       Service
                                                                                          Gateway
IPv6 Hotspot                                          Manager
                                                         9
                                                                                10
                                                                                          11       12

in Yellow                                                                                 Session                            Trunk
                      Position                                                            Control
                                                         AAA                                                               Signaling
                      Server                   15                                   16                          17
                                                                                          Manager                          Gateway
                       18          19          20      21          22                                      24                      25          26
                                                                                         23
                                                                                                Core                            Media
                      Position
                                                                                              Quality of                       Gateway
                     Determining
                                                                                               Service                          Control
                       Entity
                                                                                              Manager                          Function
                                                                                         28             29                         30

                     cdma2000 Access Network
                                                    27
                                                                 Access                    Media
                                                                 Gateway                                                    Media
                                                                                          Resource                                              PSTN
                        BTS
                                        BSC/RNC        31                      32                               33         Gateway         34
                                         + PCF                                            Function
                                                       35                                     37                          38       39     40
                                                                               36
                                          MM
                                                                FA /           41                                    42
                                                                                          Mobile IP
                                                             Attendant                                                                         Border
                                                                                           Home
                       Other Access Networks
                                                                               43                               44                             Router
                                                                                           Agent
                                                                                                                                          45        46
                47
                                                                                                                                                    IP
                                                                                                                        Legacy MS               Network
               Mobile
                                                                                                                     48  Domain
               Station
                                                                                                                         Support
                                        NORTEL NETWORKS CONFIDENTIAL
             Nortel Networks 3GPP2 Architecture
                                                                          Succession components

                   Succession components
                                                    CS-2000
                                           AAA
                                                     MGCF
                                                                     IMS
            PSTN                                                     SCM
                                                                                             IPv6
                               USP
    IS-41                      SGW                                            UAS            Hotspots
                                                                              MRF
                                               Packet network
                               PVG           (IPv4 and/ or IPv6)
                               MGW
Wireless components
                                                                       Core IP
                    MTX
                   XA-Core
                                                   PVG
                                                 PVG
                                                   MGW
                                                 MGW          Shasta
                                                               HA
                             PDSN
                     eBSC

                        eSBS                  MTX
                                                                   Internet         3GPP2 Nomenclature
                                             XA-Core                                • MGW = Media Gateway
                      CDMA Access                                                   • SGW = Signaling Gateway
                        Gateway                                                     • HA=Home Agent
                                                                                    • SCM = Session Control Manager
                                                                                    • MGCF = Media Gateway Control
                                                                                      Function
                                                                                    • MRF = Media Resource Function
                                     NORTEL NETWORKS CONFIDENTIAL
IPv6 in UMTS Operation




        NORTEL NETWORKS CONFIDENTIAL
                April 2003             9
                      UMTS R5 Data Network
                                                                       MSC
                                                                                                                                                   PSTN
                                                                                                             Gateway MSC

                                               Iu (CS & PS)
    Node B
                                                                              IWF
                                                                                                                                  HSS
                                RNC
                                                              Wireless                                                           (DMS)
                                 C -N o d e
                                                              Gateway
                                                                                                               SS7
Node B                           I-N o d e
                                 I-N o d e                     3 G SGSN                                    Transport        Gr
                                                                               Lawful
                   Iub/Iur                                                    Intercept    Preside
                  Transport                                    TRAU                         CGF                                           Preside
                                                                                            (Sun)                                           Preside
                                                                                                                                          FCAPs
                                                                                                                                              Preside
                                                                                                                                            FCAP
                                                                                                                                         Functionss
Node B                          RNC
                                                     Iu                                                    SS7/IP                             FCAP
                                                                                                                                          Functionss
                                                 Transport                                            Ga   Gateway (SIG)                    Functions
                                C -N o d e

                                I-N o d e

  Node B                                                                               IPv4/GTP PLMN
                                                                                      Packet Backbone                                           IPv6 Hotspots in Yellow
                                                                 Wireless
                                                                                                                               Preside          for this release of UMTS
                                                                 Gateway                                                         DNS
                                                                                                                 Preside        (Sun)
                                                                   3 G SGSN                                      DHCP
                                 RNC                                                                              (Sun)
                                  C- N o d e                       TRAU                                                                        Apps
                                                                                                                                               (Sun)
  Node B                          I-Node                                                                                                                Apps
                                                                                                                       Gn
                                                                                                                                                        (Sun)


                     Iub/Iur                                                                                       Home GGSN
                    Transport


         Node B
                                                                                                                                            Internet/
                                                                                                                                             Intranet
                                                                                                                 Local
                                                                                                     Gp         Content
                                                 Note: Only some of the
                                                 primary interface
                                                 reference points shown.                                    Foreign
           UTRAN                                                                          CN                GGSN                  Gi            Preside
                                                                                                                                                Radius
                                                                                                                                                 (Sun)




To Support All 3GPP Standards Mandates for UMTS R5 & Enable Infrastructure
                            Sharing & Peering


                                                                  NORTEL NETWORKS CONFIDENTIAL
                    UMTS IPv6 Operation
                    Services Deployment Options - and impact
                                          6to4 or 6over4
                                                                          tunneling                  v6     v6 IM
                      RNC                      SGSN                      GGSN             v4       IM net   Server
                                                                                        Transit
 v6
Mobile        1) Tunnel via v4 net to v6 IM net: GGSN must do 6 to 4 tunneling (shown in gray)




                                                                            NAT-PT
                                                                                           v4        v4 App
                      RNC                      SGSN                      GGSN
                                                                                         Transit     Server

 v6          2) IPv6 Mobile Accessing IPv4 Data Server – NAT-PT on GGSN
Mobile                         t                          t
                        - doesn’ work for some Apps; doesn’ scale

                                                                                                       v6 IM
                                                                                      v6 transit
                                                                                                       Server
                      RNC                      SGSN                      GGSN
 v4 / v6                                                                                  v4           v4 App
dual-stack                                                                              Transit        Server
 Mobile
               3) Likely startup scenario - v4 and v6 services; dual stack mobile; GGSN must
               deal with both addressing systems
                                          NORTEL NETWORKS CONFIDENTIAL
       s
Nortel’ All-IP (IPv6) IM Subsystem (3G)

Terminal Devices    Access          IM Subsystem            Internet, Intranets
                   Networks

                                           Subscriber
                                Mobility      Data
                                Server
                                             Server
                                         Alteon
                                                                  IP v6
                                         Switch                   Network
                                SIP
                               Servers
                                            PP                      IP v4         IP IPv6
                                                                                      v4

MS
       PP15K         Shasta                8600
                                                              6to4  Network       Network
                                                                                    Network
       SGSN                                                  NAT-PT
                     GGSN

                                                                   Intranet
                                                                     VPN
     IPv4/v6 tunneled in GTP        Alteon
                                    Switch        Content
                                                  Switch

                       IPv4 or v6                             IPv4 or Ipv6




                           NORTEL NETWORKS CONFIDENTIAL
         Key IP Multimedia RFCs and Internet
         Drafts for Release 5
• SIP compression
  –   draft-hannu-rohc-signaling-cellular-01.txt “Application Signaling Over Cellular Links”.
  –   draft-hannu-rohc-roger-00.txt “RObust GEneric message size Reduction (ROGER)”.
  –   draft-liu-rohc-scribe-00.txt “Scalable Robust Efficient Dictionary-Based Compression
      (SCRIBE)”.

• SIP
  –   RFC 2543bis “SIP: Session Initiation Protocol”.
  –   draft-ietf-sip-manyfolks-resource-01.txt “Integration of Resource Management and SIP:
      SIP Extensions for Resource Management”.
  –   draft-ietf-sip-100rel-03.txt “Reliability of Provisional Responses in SIP”.
  –   draft-ietf-sip-privacy-01.txt “SIP Extensions for Caller Identity and Privacy”.
  –   draft-ietf-sip-call-auth-01.txt “SIP Extensions for Media Authorization”.
  –   draft-3gpp-sip-establish-00.txt “3GPP IP Multimedia CN Subsystem - Session
      Establishment Flows”.
  –   draft-3gpp-sip-registration-00.txt “3GPP IP Multimedia CN Subsystem - Registration
      Flows”.


                                 NORTEL NETWORKS CONFIDENTIAL
 Mobile IPv6

• Still under development
• Basic idea is similar to Mobile IPv4
• Much better implementation
  – Home agent fields initial packet from caller
  – Send authenticated care-of address option to caller
     • Big issue with how to setup security associations
  – Subsequent packets travel directly to/from caller ó
    care-of address
     • Does not need forged source address
     • Does not need foreign agents
     • Always does route optimisation

                   NORTEL NETWORKS CONFIDENTIAL
An Overview Of Nortel CDMA/WLAN
UMTS/WLAN Mobile IP Solutions




        NORTEL NETWORKS CONFIDENTIAL
                April 2003             15
         Elements of Nortel Strategy



                                             VPN Security is key



 Seamlessness Between WLAN
And 2.5/3G                                                  OSS and BSS Systems
                                                            Support WLANs
          Internet



   Superior IP Telephony                                Ethernet Mobility, Security
   And MM Voice-Data Integ                              And QoS/BWM

                         NORTEL NETWORKS CONFIDENTIAL
             Authentication & Dynamic Addressing
                                    Local                                 Home
                                   RADIUS                                RADIUS                  SCS
                                           7. Access-Request (CHAP)
                                                8. Access-Accept


                                                                                  11. Sub pull   12. Sub info
                    6. Access-Request   9. Access-Accept                            for NAI        for NAI
                         (CHAP)

          1. Start PPP session                       10. RRQ (IP1/NAI)
           2. AA (with FAC)
                                                     14. RRP (IP2/NAI)
        3. RRQ (IP1/NAI/FACR)
                                                           IP in IP tunnel
 mobile      15. RRP (IP2)
                                                                                                 13. Allocate IP address
                                                                                                 from internal pool = IP2
 node                                              Opt. reverse tunnel

                                   PDSN/FA                                           HA
                                                    5. Sub info
IP1 = 0.0.0.0                4. Sub pull             for MSID
NAI = user@realm.com          for MSID
IP2 = address assigned by HA
FAC = Mobile IP Challenge
FARC = Mobile IP Challenge Response                                SCS
M-H = Mobile-Home Authentication extension
M-A = MN-AAA Authentication extension

                                        NORTEL NETWORKS CONFIDENTIAL
                      PDSN Accounting:Mobile IP
          Visited Network                                                  Home Network
                                    Traditional Circuit Network
                        VLR                    SS7                     HLR

Forward packet flow

                         Funk/AAA                                            AAA
Reverse packet flow
                          Server          Accounting proxy
                                                                            Server
Billing Record flow
                            UDR
                                          Public IP Network



                                                                          Home Agent
                PDSN
           (acting as a FA)


  • Accounting will be performed by the Foreign Agent which routes packets in both directions.
  • Home Network can be both wireless or wireline. Therefore, home agent does not necessarily
    perform accounting based on 3GPP2.
  • Preside AAA server supports accounting proxy where accounting records can be sent to AAA
    server in home network.

                                    NORTEL NETWORKS CONFIDENTIAL
                Nortel “One-Bill” Solution with
                Seamless Mobile IP
         BirdStep                                  MSC        HLR
         Mobile IP                                                                      CDMA
           client                                            CS SS7
                                                                                     Customers access
                                                                      Mobile IP Home WLAN network via
                             1X/DO BSC/RNC                            Agent for WLAN Mobile IP client
                                                PDSN FA               and CDMA 2000 software to CDMA
                            Metro Cell
     Terminals
                                                                                     operator
                                                          Data Center     AAA Server
                                                                         (Bridgewater
                                                                         or Metasolv)

                                                  Internet               Shasta BSN
                                Nortel WLAN
                                2250 Security
Nortel WLAN                        Switch
2201 Mobile
  Adaptor
              Nortel WLAN    WLAN Data
                                                 •Single sign-on                        WLAN
              2220 Access     Center
                 Point                           •Single bill
                                                 •Single authentication
                               AAA Server /
                               Radius Proxy

                               Mobile IP allows seamless handoff
                                      NORTEL NETWORKS CONFIDENTIAL
                                between CDMA 1X/DO & WLAN
                 Always-On Anytime, Anywhere -
                 Mobile IP – FA & HA
                                                         APBW CDMA Wireless
                                                            Packet Core   Univity HA
                                                                                                  HA-AAA
                                                      PDSN/FA_1                                   Authentication &
                                                                  IP-in-IP
                                         BSC_1                                                    Accounting



                                                                                IP-in-IP

                 Air Interface
                 Mobility                                                                           Co-located COA

                                                       BSC_2      PDSN/FA_2
                   Link                                                                    Nortel WLAN
                                                                                                                     Birdstep
                                                                                                                     MIP Client
                   Level                                                                   2220 Access
                   Mobility                                                                   Point
                                                                                                                   Nortel WLAN
                                                                                                                   2201 Mobile
                                                                             BSC_3                                    Adapter
                                                                                                         Nortel WLAN
                                                                                                         2250 Security
                                       Network                                                              Switch
                                       Level
                                       Mobility                                                     WLAN Hot Spot
Network Level Mobility
• Inter-PDSN via Mobile IP
• Anchored by HA
• HA can reside external to wireless
                                                  Integrated IP Services ready to be
  network                                              turned on when you want
                                                    NORTEL NETWORKS CONFIDENTIAL
• HA-FA Tunneling options
       IP Services Across CDMA & WLAN
                                             • Protects users information
• Security                                   • Ensure services availability
 Personalized firewalls                      • Secure operators revenues

• Content                                    • Pre-position and personalize content
 Personal Content portal                     • Increase customer loyalty
 Web Steering

• QoS                                        • Allocate resources based on
 Traffic management                            subscriber profile, on application
 DiffServ

• VPN                                        • Build revenue in corporate segment
 End-to-End VPN, L2TP                        • Increase operator revenues with
 VPN, IPSec VPN                                additional outsourced services

• Mobility                                   • Maximize and Preserves Operator
 Mobile IP                                     Investment
                                             • Subscriber Service Transparency
                                               in any network

                          Integrated IP Services ready to be
                                 NORTEL NETWORKS you want
                              turned on whenCONFIDENTIAL
   Summary
• Nortel is fully behind IPv6. Nortel is fully behind
  Nortel believe that IPv4 and IPv6 will coexist in the
  network for the foreseeable future and we will
  support interoperation between them to protect our
  customers existing investments.

• Nortel is actively developing v6 on the platforms
  most relevant to wireless CDMA/UMTS architecture.

• Nortel Networks are committed to helping operators
  create a mobile environment that delivers users
  compelling content and data services from any
  location. Nortel Networks sees WLAN and WWAN as
  complementary technologies:
  WLAN somewhere vs WWAN everywhere
                  NORTEL NETWORKS CONFIDENTIAL
NORTEL NETWORKS CONFIDENTIAL

				
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