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GPRS/UMTS

GPRS/UMTS. IAB Workshop February 29 - March 2, 2000 Jonne Soininen Nokia. Outline. Introduction to 3GPP GPRS/UMTS Architecture GPRS/UMTS Introduction GPRS Architecture UMTS Packet Architecture GPRS/UMTS Protocols Combined GSM and M-IP mobility handling in UMTS IP CN Introduction

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GPRS/UMTS

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  1. GPRS/UMTS IAB Workshop February 29 - March 2, 2000 Jonne Soininen Nokia

  2. Outline • Introduction to 3GPP • GPRS/UMTS Architecture • GPRS/UMTS Introduction • GPRS Architecture • UMTS Packet Architecture • GPRS/UMTS Protocols • Combined GSM and M-IP mobility handling in UMTS IP CN • Introduction • Step 1 • Step 2 • Step 3 • Overview to UMTS Release 2000 All-IP Option

  3. Introduction to 3GPP(1/5) • Participation • Organizational Partners • ARIB • CWTS • ETSI • T1 • TTA • TTC • Market Representation Partners • Global Mobile Suppliers Association - GSA • GSM Association • UMTS Forum • Universal Wireless Communications Consortium (UWCC) • IPv6 Forum • Individual Members • Companies • Observers, Guests

  4. Introduction to 3GPP(2/5)

  5. Introduction to 3GPP(3/5) • TSG CN (Core Network) • WG1 (MM/CC/SM) (Iu) • WG2 (MAP/GTP/CAMEL) • WG3 (Interworking with external networks) • TSG RAN • WG1 (Radio Layer 1) • WG2 (Radio Layer 2 and Radio Layer 3 RR) • WG3 (Iub, Iur, Iu, UTRAN O&M requirements) • WG4 (R. performance, protocol aspects) • AHG1 (Ad-hoc group on ITU (internal) co-ordination) • TSG SA • WG1 (Services) • WG2 (Architecture) • WG3 (Security) • WG4 (Codec) • WG5 (Telecom Management)

  6. Introduction to 3GPP(4/5) • TSG T • WG1 (Mobile Terminal Conformance testing) • WG2 (Terminal Services & Capabilities) • WG3 (USIM)

  7. Introduction to 3GPP(5/5) • Technical Work Done in WGs • Meetings • As Necessary • Decision through Consensus or Voting • Most of the Work Done in Meetings • Deliverables • Technical Reports/Technical Specifications • Approval by Consensus or Vote • Change Control When Sufficiently Stable • Inter-WG Coordination • In TSGs • Information Exchange through Liaison Statements • Standards • Releases

  8. GPRS/UMTS Architecture

  9. GPRS/UMTS Release 99 Architecture

  10. Corporate 1 Intra-PLMN backbone network (IP based) Corporate 2 Server Router Local area network GSM Architecture / GSM Radio BTS Packet BSC network Um PSTN A MSC SMS-GMSC HLR/AuC Gb Gs Gr Gd Gr Gd Serving GPRS Packet Gs Support Node SS7 network Server Network Gn (SGSN) EIR GPRS Border INFRASTRUCTURE MAP-F Gateway (BG) Packet Gc Inter-PLMN Router network Local Backbone Firewall Gp network area Data network Packet Firewall network network Gn (Internet) Gi.IP Gateway GPRS Support Node (GGSN)

  11. Corporate 1 Intra-PLMN backbone network (IP based) Corporate 2 Server Router Local area network UMTS Architecture / WCDMA Node B Packet RNC network Uu PSTN Iu MSC SMS-GMSC HLR/AuC Iu Gs Gr Gd Gr Gd Serving GPRS Packet Gs Support Node SS7 network Server Network Gn (SGSN) EIR GPRS Border INFRASTRUCTURE MAP-F Gateway (BG) Packet Gc Inter-PLMN Router network Local Backbone Firewall Gp network area Data network Packet Firewall network network Gn (Internet) Gi.IP Gateway GPRS Support Node (GGSN)

  12. The R99 Architecture A Node B Packet RNC BTS BSC network PSTN Iu Um MSC SMS-GMSC Gb HLR/AuC Iu Gs Gr Uu Gd Gr Gd Serving GPRS Packet Corporate 1 Gs Support Node SS7 network Server Network Gn (SGSN) EIR GPRS INFRASTRUCTURE MAP-F Intra-PLMN Gc backbone Router network Local (IP based) Firewall area Border Data network Packet Gateway (BG) network network Gn (Internet) Gi.IP Gateway GPRS Corporate 2 Support Node Server (GGSN) Gp Firewall Packet Router Inter-PLMN Local network Backbone area network network

  13. Entities • The Serving GPRS Support Node (SGSN) • Mobility Management • Authentication • Gathers Charging Information • Gateway GPRS Support Node (GGSN) • Gateway between UMTS Core Network and external networks • Address allocation for MS • Gathers Charging Information • Filtering • Base Station Subsystem (BSS) / Radio Network Subsystem (RNS) • BSS • BSC • BTS • RNS • RNC • Node-B

  14. PDP Context • Packet Data Protocol (PDP) Context • Session • Logical Tunnel between MS and GGSN • Anchored GGSN for Session • Multiple PDP Contexts • Per Mobile • Per PDP Address • PDP Context Activities • Activation • Modification • Deactivation

  15. R99 Interfaces and ProtocolsRouting Example

  16. GPRS Network from the Internet

  17. R99 Interfaces and ProtocolsGSM User Plane Application IP, etc. IP, etc. Relay SNDCP GTP -U SNDCP GTP -U LLC LLC UDP UDP Relay RLC BSSGP RLC BSSGP IP IP MAC MAC Network Network L2 L2 Service Service GSM RF GSM RF L1bis L1bis L1 L1 Um Gb Gn Gi MS BSS SGSN GGSN

  18. R99 Interfaces and ProtocolsUMTS User Plane

  19. Mobile IP in UMTS3GPP TSG-SA WG2 Mobile IP Ad Hoc

  20. Mobile IP in UMTSA Staged Approach • Step 1: Offering Mobile IP service • UMTS Release 99 • Step 2: Intermediate GPRS-Mobile IP system • Step 3: Using Mobile IP for Intra System Mobility

  21. HLR etc. Mobile IP in UMTSStep 1 UTRAN HA Gp SGSN RNS IP network CN GGSN FA SGSN BG Iur HA GGSN MAP HA RNS PLMN backbone Internet filter R GGSN SGSN FA RNS FA In R99 UTRAN Iu BG Border Gateway R Router HA Home Agent FA Foreign Agent

  22. Mobile IP in UMTSStep 1 (Cont.) • Changes • FA functions at GGSN • Mobile IP in the mobile if needed • Does not change • GSM MAP, VLR and HLR • Network architecture • No changes to the MS In R99 Mobile IP as a Service

  23. HLR etc. Mobile IP in UMTS Step2 UTRAN Gp HA RNS SGSN BG GGSN FA IP network SGSN Iur HA GGSN R MAP FA HA Gi IP RNS PLMN backb. Internet filter R R SGSN R RNS GGSN FA UTRAN Iu BG Border Gateway R Router HA Home Agent FA Foreign Agent

  24. Mobile IP in UMTSStep 2 (cont.) • Changes to Step 1 • GGSN/FA can be changed during a session if more suitable available • Applicability • Maybe in Release 2000 Mobile IP & GTP Interworking

  25. UTRAN UTRAN HA RNS IGSN CN FA BG FA R IGSN HA Iur HA MAP IP RNS HLR Internet FW R etc. R IGSN R RNS FA CN Iu Mobile IP in UMTSStep 3

  26. UTRAN UTRAN HA RNS IGSN BG CN FA FA BG R IGSN HA Iur HA MAP IP RNS Gn Lite HLR Internet FW R etc. R IGSN RNS R FA CN Iu Mobile IP in UMTSStep 3 (the reality)

  27. Mobile IP in UMTSStep 3 (Cont.) • Changed from Step 1 & Step 2 • GTP only on control plane (almost) • No SGSN + GGSN -> IGSN • Mobile IP based Macro Mobility Management • MS has to be changed to support Mobile IP • Problems • Interworking with pre-Step 3 networks • Support for non-M-IP mobiles • etc. • Applicability • Not defined More Mobile IP Integration

  28. Release 2000 All-IP Architecture

  29. Release 2000 Architecture • Includes All-IP Architecture Option • GPRS as basis • Includes GPRS Core Network • Home Subscriber Server (HSS) instead of HLR • New Entities - Voice over IP infrastructure • Call State Control Function (CSCF) • Media Gateway Control Function (MGCF) • Media Gateway Function (MGW) • etc. • New Interfaces • New Protocols

  30. Legacy mobile Alternative Applications & signaling Access Services *) Network Network SCP Multimedia CSCF IP Networks R-SGW Mw Mh Ms SGSN GGSN CAP Mm Cx Gn HSS *) Other PLMN CSCF Gr Mg Gp Mr Gi Gi EIR MRF Gf TE MT ERAN MGCF T-SGW *) Gi Gc R Um Iu-ps' GGSN Mc SGSN Iu Gi Gn 1 Iu PSTN/ TE MT UTRAN MGW MGW Legacy/External R Uu Nb 2 Iu Mc Mc 1 Iu = Iucs (RTP, AAL2) Nc MSC server GMSC server T-SGW *) 2 Iu = Iu (RANAP) MAP MAP Mh Applications HSS *) R-SGW *) & Services *) *) those elements are duplicated for figure Signalling Interface layout purpose only, they belong to the same Signalling and Data Transfer Interface logical element in the reference model R00 All-IP Reference Architecture

  31. WLAN, DSL, cable... RSGW MGCF TSGW MGW CSCF MRF All-IP System Level Architecture Application servers Service capability servers SCP HSS OSA CAP WIN Gr+ MAP+ Iu-PS SGSN GGSN PSTN 3G RAN IPv6 All-IP Core ISUP RAS Legacy Cellular MAP IS-41 FW SIP H.248 Internet CSCF Call State Control Function MRF Multimedia Resource Function HSS Home Subscriber Server RAS Remote Access Server (DSLAM, head end…) MGCF Media Gateway Control Function RSGW Roaming Signaling Gateway MGW Media Gateway TSGW Transport Signaling Gate

  32. PSTN/ External CS Networks External IP Networks Legacy Mobile Signaling Networks RAS WLAN, DSL, Cable, etc. R00 All-IP Reference Architecture Service Layer OSA, VHE, etc. SCP Application Layer CSCF RSGW CSCF MGCF HSS MRF TSGW MGW GGSN SGSN Transport Layer

  33. R00 New Protocols (?) • Protocol between CSCF and Mobile or IP Phone: • H.323 or SIP • CSCF-MRF: Mr • H.248/Megaco • CSCF-MGW: Mc • H.248/Megaco • CSCF-HSS:Cx • IP based Interface • CSCF-CSCF: Mw • Bear Independent Control Protocol (BICC) or SIP? • CSCF-Legacy Mobile Network: Ms • IP based signaling - The same as Mw • CSCF-Applications/Services: • Difference: Camel over IP (Sigtran) • Real-time IP transport: • RTP/UDP/IP

  34. Thank You! Jonne Soininen Jonne.Soininen@Nokia.Com

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