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18、THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-1068 TIA cdma2000/GPRS Roaming ii TIA/TR45.6 Revision History Revision Date Rev.0 Initial Publication April 2005 TIA-1068 TIA cdma2000/GPRS Roaming i TIA/TR45.6 1 Table of Contents 2 Revision History.
19、 ii 3 Table of Contentsi 4 List of Figures iii 5 List of Tablesiv 6 1 Introduction1 7 1.1 Scope 1 8 2 References2 9 2.1 Normative References 2 10 2.2 Informative References.3 11 3 Goals and Assumptions4 12 4 Definitions and Abbreviations .5 13 4.1 Definitions 5 14 4.2 Abbreviations .5 15 5 Reference
20、 Model7 16 5.1 IIF Description7 17 5.2 Reference Points.8 18 6 General Requirements9 19 6.1 Roaming Directions9 20 6.2 Authentication and Authorization.9 21 6.3 Roaming Connectivity9 22 6.4 Data Integrity and Privacy9 23 6.5 Accounting .9 24 7 Roaming Scenarios GPRS Tunneling Protocol 20 (GTP) acros
21、s the Gn and Gp interface, March 2004 21 6 3GPP: TS 29.061, Interworking between the Public Land Mobile Network (PLMN) 22 supporting packet based service and Packet Data Networks (PDN), January 2004 23 7 IETF: RFC 2794, Calhoun, et al, Mobile IP Network Access Identifier Extension for 24 IPv4, March
22、 2000 25 8 IETF: RFC 2002, Perkins, IP Mobility Support, October 1996 26 9 IETF: RFC 3012, Perkins, et al, Mobile IPv4 Challenge/Response Extensions, 27 November 2000 28 10 3GPP: TS 23.003, Numbering, addressing and identification, January 2004 29 11 3GPP: TS 23.060, General Packet Radio Service (GP
23、RS); Service description; Stage 2, 30 December 2003 31 12 IETF: RFC 2809, Aboba, et al, Implementation of L2TP Compulsory Tunneling via 32 RADIUS, April 2000 33 TIA-1068 TIA cdma2000/GPRS Roaming 3 TIA/TR45.6 13 IETF: RFC 2868, Zorn, et al, RADIUS Attributes for Tunnel Protocol Support, June 1 2000
24、2 14 3GPP: TS 44.065, Mobile Station (MS) Serving GPRS Support Node (SGSN); 3 Subnetwork Dependent Convergence Protocol (SNDCP), September 2004 4 15 3GPP: TS 24.008, Mobile radio interface layer 3 specification; Core Network Protocols; 5 Stage 3, June 2004 6 16 IETF: RFC 1144, Jacobson, Compressing
25、TCP/IP Headers for Low-Speed Serial 7 Links, February 1990 8 17 IETF: RFC 1962, Rand, The PPP Compression Control Protocol (CCP), June 1996 9 18 IETF: RFC 1974, Friend, et al, PPP Stac LZS Compression Protocol, August 1996 10 19 IETF: RFC 2118, Pall, Microsoft Point-To-Point Compression (MPPC) Proto
26、col, 11 March 1997 12 20 3GPP2: A.S0001, 3GPP2 Access Network Interfaces Interoperability Specification (3G-13 IOS v4.0.0) Release A (1999) Revision 0, January 2000 14 TIA: TIA/EIA/IS-2001, Interoperability Specification (IOS) for cdma2000 Access 15 Network Interfaces, December 2000 16 2.2 Informati
27、ve References 17 No informative reference is specified. 18 TIA-1068 TIA cdma2000/GPRS Roaming 4 TIA/TR45.6 3 Goals and Assumptions 1 This section provides the goals and assumptions for cdma2000/GPRS roaming: 2 1. This document supports roaming between cdma2000 packet data systems (based on 2) 3 and
28、GPRS systems (based on Release 97, 98, 99). 4 2. There is a goal to minimize additional requirements on the cdma2000 packet data system 5 for supporting cdma2000/GPRS roaming. 6 3. No changes are to be required for 3GPP documents. 7 4. This document does not support the handoff of packet data sessio
29、ns between a cdma2000 8 packet data system and a GPRS system. 9 TIA-1068 TIA cdma2000/GPRS Roaming 5 TIA/TR45.6 4 Definitions and Abbreviations 1 This section contains definitions and abbreviations that are used throughout the document. 2 4.1 Definitions 3 cdma2000 Packet Data Native Subscriber desc
30、ribes an end user whose primary or home 4 subscription resides in a cdma2000 packet data system. 5 GPRS Native Subscriber describes an end user whose primary or home subscription resides in a 6 GPRS system. cdma2000 Packet Data Foreign Mode indicates the condition or state of a GPRS 7 native subscri
31、ber accessing a cdma2000 packet data system. 8 GPRS Foreign Mode indicates the condition or state of a cdma2000 packet data native subscriber 9 accessing a GPRS system. 10 Roaming Exchange describes 3rd-party facilities providing connectivity and transport of signaling 11 and/or bearer data exchange
32、d between a cdma2000 packet data system and a GPRS system. 12 4.2 Abbreviations 13 AAA Authentication, Authorization, and Accounting 14 ANSI American National Standards Institute 15 APN Access Point Name 16 CDMA Code Division Multiple Access 17 CHAP Challenge Handshake Authentication Protocol 18 DNS
33、 Domain Name System 19 FA Foreign Agent 20 FAC Foreign Agent Challenge 21 GGSN Gateway GPRS Support Node 22 GPRS General Packet Radio Service 23 GRX GPRS Roaming exchange 24 GSM Global System for Mobile communications 25 GTP GPRS Tunneling Protocol 26 HA Home Agent 27 HLR Home Location Register 28 I
34、IF Interworking and Interoperability Function 29 IMSI International Mobile Subscriber Identity 30 IP Internet Protocol 31 TIA-1068 TIA cdma2000/GPRS Roaming 6 TIA/TR45.6 IPCP Internet Protocol Control Protocol 1 IRM International Roaming MIN 2 LAC L2TP Access Concentrator 3 LCP Link Control Protocol
35、 4 LNS L2TP Network Server 5 L2TP Layer Two Tunneling Protocol 6 MCC Mobile Country Code 7 MIN Mobile Identification Number 8 MNC Mobile Network Code 9 MS Mobile Station 10 NAI Network Access Identifier 11 NSAPI Network Layer Service Access Point Identifier 12 PAP Password Authentication Protocol 13
36、 PDP Packet Data Protocol 14 PDSN Packet Data Serving Node 15 PPP Point to Point Protocol 16 RADIUS Remote Authentication Dial In User Service 17 RRP Registration Reply 18 RRQ Registration Request 19 SGSN Serving GPRS Support Node 20 SO Service Option 21 TEID Tunnel Endpoint ID 22 VLR Visited Locati
37、on Register 23 24 TIA-1068 TIA cdma2000/GPRS Roaming 7 TIA/TR45.6 5 Reference Model 1 The Interworking and Interoperability Function (IIF) provides signaling control and bearer interfaces 2 between cdma2000 packet data systems and GPRS systems. The IIF enables service access when a 3 subscriber oper
38、ates in a visited network whose signaling and network protocols are different from the 4 home networks protocols. Figure 1 depicts the family of network interfaces provided by the IIF in 5 interconnecting networks. Bold lines are the bearer paths, non-bold lines indicate signaling paths. 6 ANSI-41VL
39、RANSI-41HLRcdma2000 Packet DataSystemGPRS SystemGSMVLRDDDDX1GrX1AAAX3AAAX4GpGpX2X2ANSI-41HLRGSMVLRGSMHLRGSMHLRANSI-41VLRLACAAAGiIIFGRXInternetFAHALNSPDSN/FAPDSN/LACHALNSSGSNGGSNGGSNSGSN7 Figure 1 cdma2000/GPRS roaming reference model 8 5.1 IIF Description 9 The Interworking and Interoperability Func
40、tion (IIF) supports the following functions: 10 ANSI-41 VLR and/or HLR 11 GSM VLR and/or HLR 12 Mobile IP Foreign Agent (FA) and/or Home Agent (HA) 13 L2TP Access Concentrator (LAC) and/or L2TP Network Server (LNS) for 14 L2TP tunnel management (i.e., establishment, maintenance, and 15 termination)
41、16 TIA-1068 TIA cdma2000/GPRS Roaming 8 TIA/TR45.6 GGSN and/or SGSN for GTP tunnel management 1 RADIUS protocols for interacting with AAA server in the cdma2000 2 system and/or GPRS system 3 5.2 Reference Points 4 Reference D is the interface between HLR and VLR. This interface is specified in 1. 5
42、Reference X1 is the interface between Mobile IP HA and FA. This interface is specified in 2. 6 Reference X2 is the interface between LAC and LNS. This interface is specified in 3. 7 Reference X3 is the interface between IIF and AAA server in the cdma2000 system for exchanging 8 cdma2000 packet data
43、authentication, authorization, and accounting information. This interface is 9 based on 2 with enhancements to support L2TP tunneling. 10 Reference X4 is the interface between an IIF and a AAA server in the GPRS system for exchanging 11 3GPP packet data authentication, authorization, and accounting
44、information based on RADIUS. This 12 interface is specified in 6. 13 Reference Gr is the interface between IIF and SGSN for the authentication of a GPRS attach. This 14 interface is specified in 1 and 4. 15 Reference Gp is the interface between SGSN and GGSN. This interface is specified in 511. 16 R
45、eference Gi is the interface between the GGSN and Internet. This interface is specified in 6. 17 TIA-1068 TIA cdma2000/GPRS Roaming 9 TIA/TR45.6 6 General Requirements 1 This section provides general requirements for cdma2000/GPRS roaming. 2 6.1 Roaming Directions 3 It shall be possible to support c
46、dma2000 packet data foreign mode. 4 It shall be possible to support GPRS foreign mode. 5 6.2 Authentication and Authorization 6 Authentication and authorization for packet data access of a subscriber operating in 7 foreign mode (i.e., cdma2000 packet data foreign mode or GPRS foreign mode) should 8
47、be performed by the home network of the subscriber. 9 6.3 Roaming Connectivity 10 It shall be possible for the roaming MS to establish connectivity to the Internet through 11 the serving system directly, or through the serving and home systems. 12 If the GPRS system has connectivity through a roamin
48、g exchange (e.g., GRX), it shall be 13 possible to support connectivity between the cdma2000 packet data system and GPRS 14 system through the roaming exchange. 15 cdma2000 packet data systems shall support the cdma2000 foreign mode for MS using: 16 a. Mobile IPv4 17 b. Simple IPv4 18 c. Simultaneou
49、s Mobile IPv4 and Simple IPv4 19 6.4 Data Integrity and Privacy 20 The integrity of signaling data exchanged between the cdma2000 packet data system and 21 GPRS system shall be possible. 22 The privacy of signaling and bearer data exchanged between the cdma2000 packet data 23 system and GPRS system shall be possible. 24 6.5 Accounting 25 The accounting information for the MSs roaming access shall be made available to the 26 home system. 27 A set of accounting record typ
