1、TIA/EIA TELECOMMUNICATIONS SYSTEMS BULLETIN cdma2000 Wireless IP Architecture Based on IETF Protocols TSBll5 DECEMBER 2000 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Telecommunications Indushy Association represents the communications sector of Elsctronit: Industries Alliance NOTICE TIA/EIA Enginee
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4、e their voluntary use by those other than TIAEIA members, whether the standard is to be used either domestically or internationally. Standards, Publications and Bulletins are adopted by EIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA/EIA doe
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6、tion useful to the technical community, and represent approaches to good engineering practices that are suggested by the formulating committee. Note: The users attention is called to the possibility that compliance with this document may require use of one or more inventions covered by patent rights
7、. By publication of this standard, Interim Standard, or TSB, no position is taken with respect to the validity of those claims or of any patent rights in connection therewith. The patent holde+) so far identiJied have, however,$led statements of willingness to grant licenses under those rights on re
8、asonable and nondiscriminato y terms and conditions to applicants desiring to obtain such licenses. Details may be obtained from the standards developer. This Bulletin is not intended to preclude or discourage other approaches that similarly represent good engineering practice, or that may be accept
9、able to, or have been accepted by, appropriate bodies. Parties who wish to bring other approaches to the attention of the formulating committee to be considered for inclusion in future revisions of this Bulletin are encouraged to do so. It is the intention of the formulating committee to revise and
10、update this Bulletin fi-om time to time as may be occasioned by changes in technology, industry practice, or government regulations, or for other appropriate reasons. (From Project No. 4286, formulated under the cognizance of the TIA TR-45.6 Subcommittee on Adjunct Wireless Packet Data Technology.)
11、Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2000 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 PRICE: Please refer to the current Catalog of ELECTRONIC INDUSTRIES ALLIANCE STANDARDS and ENGINEERING PUBLICATIONS or call Global Engineering Documents, USA and Ca
12、nada (1-800-854-7179) International (303-397-7956) All rights reserved Printed in U.S.A. TINEIPJTSBI 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 CONTENTS 1 PURPOSE . 6 1.1 INTRODUCTION . 6 1.2 SYSTEM DESIGN OBJECTIVES 6 2 GLOSSARY AND DEFINITIONS .
13、 7 2.1 ACRONYMS 7 2.2 DEFINITIONS . 8 3 REFERENCES . 10 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 MOBILE IP 10 PPP 10 DIFFERENTIATED SERVICES 10 RADIUS 11 IP SECURITY . 11 TIA 11 TCP/IP 11 ITU-T 12 4 PACKET DATA SERVICE DESCRIPTIONS . 13 4.1 4.2 4.2.1 4.3 4.3.1 4.3.2 4.3.3 4.4 4.4.1 4.4.2 4.4.3 4.5 4.6 ACCESS
14、 LAYER . 13 DATA LINK LAYER . 14 PPP 14 NETWORK LAYER . 14 ADDRESS MANAGEMENT . 15 QOS 15 IP MULTICAST . 15 SECURITY 15 RADIO ACCESS SECURITY 15 NETWORK SECURITY . 16 USER END-TO-END SECURITY . 16 LAWFULLY AUTHORIZED ELECTRONIC SURVEILLANCE (LAES) . 16 EMERGENCY SERVICES 16 5 FUNCTIONAL MODEL . 17 5
15、.1 HOME AGENT (HA) 17 1 TIA/EIA/TSBI 15 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 5.2 PACKET DATA SERVING NODE (PDSN) 17 5.3 AUTHENTICATION. AUTHORIZATION. AND ACCOUNTING (AAA) . 18 5.4 PACKET CONTROL FUNCTION (PCF) 18 5.6 MOBILE STATION . 19 5.5 RADIO
16、RESOURCES CONTROL (RRC) . 19 6 GENERAL ARCHITECTURE . 20 6.1 OVERVIEW . 20 6.2 PROTOCOL REFERENCE MODEL . 22 6.3 SERVICE PROVIDER BOUNDARIES . 23 6.4 LOGICAL INTERFACES 24 6.4.1 R-P INTERFACE 26 7 ACCOUNTING 28 8 AAA PROTOCOL CONSIDERATIONS 29 8.1 AAA PROTOCOL REQUIREMENTS . 29 8.2 AAA PROTOCOL INTE
17、RWORKING . 29 9 SUPPORT OF DIFFERENTIATED SERVICES . 31 9.1 9.1.1 9.1.2 9.1.3 9.1.4 9.1.5 9.2 9.2.1 9.2.2 9.2.3 VERSION 1 QoS 31 MOBILE STATION TO RN . 31 RN TO PDSN . 31 PDSN TO P NETWORK 31 PDSN TO RN . 31 RN TO MOBILE STATION . 31 VERSION 2 QoS 32 DATA LINK LAYER . 32 NETWORK LAYER 32 MOBILE STAT
18、ION TO RN . 32 10 REOUIREMENTS . 33 10.1 PDSN FUNCTIONS . 33 10.1.1 CORE PDSN FUNCTIONS . 33 10.1.2 INCREMENTAL PDSN FUNCTIONS FOR sIh4PLE P SERVICE 33 10.1.3 INCREMENTAL PDSN FUNCTIONS FORMOBILE P VERSION 1 . 33 10.1.4 INCREMENTAL PDSN FUNCTIONS FORMOBILE P VERSION 2 34 10.2 HA FUNCTIONS . 34 10.2.
19、1 HA FUNCTIONS FORVERSION 1 34 10.2.2 INCREMENTAL HA FUNCTIONS FORVERSION 2 35 10.3 AAA SERVER FUNCTIONS 35 2 TINEIPJTSBI 15 10 11 12 13 14 15 16 17 18 19 20 21 10.3.1 10.3.2 10.3.3 10.4 10.4.1 10.4.2 10.4.3 10.4.4 10.5 SIMPLE P . 35 MOBILE P VERSION 1 . 35 MOBILE P VERSION 2 . 35 MOBILE STATION FUN
20、CTIONS . 35 CORE MOBILE STATION FUNCTIONS 35 INCREMENTAL MOBILE STATION FUNCTIONS FOR MOBILE P VERSION 1 . 36 INCREMENTAL MOBILE STATION FUNCTIONS FOR MOBILE P VERSION 2 . 36 ACCOUNTING FUNCTIONS 36 INCREMENTAL MOBILE STATION FUNCTIONS FOR SIMPLE P . 36 ANNEX: FLOWS 37 A-1 SIMPLE IP SERVICE INITIATI
21、ON AND TERMINATION WITH ACCOUNTING 37 A-2: MOBILE IP SERVICE INITIATION 39 A-3 HANDOFFS BETWEEN RN WITHEY THE SAME PDSN 41 A-4 HARD HANDOFF BETWEEN PDSNS FOR MOBILE IP 43 A-5 SIMPLE IP SERVICE TERMINATED BY THE NETWORK 45 A-6 MOBILE IP SERVICE TERMINATED BY THE MOBILE STAnON 47 A-7 MOBILE IP SERVICE
22、 TERMINATED BY THE NETWORK 49 A-S DORMANT HANDOFF MAINTAINING SAME PDSN 51 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 TIA/EIA/TSBI 15 FIGURES Figure 1 : Functional Model . 17 Figure 2: IMT-2000 Architecture Model for Mobile IP . 21 Figure 3: IMT-2000 Architecture Model for Simple
23、IP 22 Figure 4: Protocol Reference Model for Simple IP . 22 Figure 5: Protocol Reference Model for Mobile IP Control and IKE . 23 Figure 6: Protocol Reference Model for Mobile IP User Data . 23 Figure 7: Logical Interfaces for Home Agent in the Home Access Provider Network 24 Figure 8: Logical Inter
24、faces Reference Model for Home Agent Dynamically Assigned in the Visited Access Provider Network (Version 2 Scenario) 25 Figure 9: Logical Interfaces Reference Model for Private Network Access with Mobile IP 25 Figure 10: Logical Interfaces Reference Model for Simple IP . 26 Figure 1 1 : Accounting
25、Architecture 28 Figure 12: AAA Protocol Interworking Architecture 30 Figure 13: A-1 Simple IP Service Initiation with AAA Accounting . 38 Figure 14: Mobile IP Service Initiation 40 Figure 15: Handoffs between RN within the Same PDSN 42 Figure 16: Hard Handoff between PDSNs for Mobile IP . 44 Figure
26、17: Simple IP Service Terminated by the Network 46 Figure 18: Mobile IP Service Terminated by the Mobile Station . 48 Figure 19: Mobile IP Service Terminated by the Network . 50 Figure 20: Dormant Handoff Maintaining Same PDSN 52 4 TINEIPJTSBI 15 1 2 5 TIA/EIA/TSBI 15 1 2 3 4 5 6 7 8 9 10 11 12 13 1
27、4 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 1 Purpose 1 .I lnfroducfion This is an informative document that describes the packet data system architecture for a third generation wireless system based on IMT-2000. The general capabi
28、lities for this system match those outlined in the ITU IMT-2000 requirements document Q.1701. As a general philosophy behind the design of this architecture, IETF protocols are employed whenever possible to minimize the number of new protocols required and to maximize the utilization of well accepte
29、d standards and hence the speed to market. This document describes an architecture with two general services, local and public data network access and Private data network access, as well as two access methods, Simple IP and Mobile IP. Several advanced features such as security associations and dyna
30、mic address assignment, as well as accounting, are accomplished using IETF protocols. The document begins by describing the services offered. It then describes a functional model and the general functions for each component. Finally, a physical model with the appropriate mappings and detailed requir
31、ements is provided. An annex attached provides general message flows. The standardization of packet data service is anticipated to occur as a phased project. While this document primarily describes features that are required for Version 1, several requirements which are targeted for Version 2 are al
32、so described. These features are not deemed reasonable to standardize in the immediate term, but are intended to be future requirements. This document will be revised at a later date to more fully describe subsequent versions. 1.2 System Design Objectives 1. Support a wide range of addressing config
33、urations Support dynamic and static home address configurations Support multiple simultaneous IP addresses Allow for dynamic assignment of the Home Agent in the service provider network as a form of route optimization, as well as in the home IP network as a form of load balancing 2. Provide seamless
34、 roaming Provide seamless service while requiring a formal customer-service relationship with one IMT-2000 service provider and only one data network provider (which may be the same provider) Allow IP mobility for visitors whose home network may be an IMT-2000 network, ISP, or private network Provid
35、e for secure compulsory tunneling services to home IP networks to avoid overhead on the air interface 3. Provide robust authentication and authorization services Provide separation of access resource authentication and authorization services from Provide complete AAA support services (e.g., broker s
36、ervices, key distribution, those used for IP data resource services registration optimization, address leasing, etc.) 4. Provide QoS support 5. Provide accounting services Support differentiated services Generate accounting data including information on QoS Support reliable distribution and manageme
37、nt of accounting information Support accounting mechanisms to enable roaming 6 TINEIPJTSBI 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 2 Glossary and Definitions 2.1 Acronyms AAA AH CCP COA CHAP
38、 CRL DOI ESP FA FAC HA HLR I ETF I KE I MSI I MT-2000 IP I PCP I RM ISAKMP ISP LAC LAES LCP MSlD MAC MIN MIP MS NA1 PAP PCF PDSN PL PPP QoS RADIUS RN RRC RRP RRQ R-P SA SPI SS7 TCP UDR UDP VLR Authentication, Authorization, Accounting Authentication Header Compression Control Protocol Care Of Addres
39、s Challenge Handshake Authentication Protocol Certificate Revocation List Domain of Interpretation Encapsulating Security Payload Foreign Agent Foreign Agent Challenge Home Agent Home Location Register Internet Engineering Task Force Internet Key Exchange International Mobile Station Identity Intern
40、ational Mobile Telecommunications - 2000 Internet Protocol IP Control Protocol International Roaming MIN Internet Security Association and Key Management Protocol Internet Service Provider Link Access Control Lawfully Authorized Electronic Surveillance Link Control Protocol Mobile Station Identifier
41、 Medium Access Control Mobile Identification Number Mobile IP Mobile Station Network Access Identifier Password Authentication Protocol Packet Control Function Packet Data Serving Node Physical Layer Point-to-Point Protocol Quality of Service Remote Authentication Dial In User Service Radio Network
42、Radio Resource Control Registration Reply(Mobi1e IP) Registration Request (Mobile IP) Security Association Security Parameter Index Signaling System 7 Transmission Control Protocol Usage Data Record User Datagram Protocol Visitor Location Register RN-PDSN 7 TIA/EIA/TSBI 15 10 11 12 13 14 15 16 17 18
43、 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 2.2 Definitions Access Provider Network: An IMT-2000 cellular network providing access to the mobile user. Broker AAA: An intermediate AAA server that has security relationships with the Visited AAA and the Horne AAA a
44、nd is used to securely transfer AAA messages between the Visited Access Provider Network and the Horne If Network. In some situations, there may be more than one broker AAA in the path between visited AAA and home AAA. Broker AAA Network: A network with an administrative domain that contains the Bro
45、kerAAA. Home AAA: The AAA server that resides in the Horne If Network. Home Access Provider Network: The IMT-2000 cellular network that is the home for the mobile subscriber unit. The user may have a different home (IP) network for data services. Home IP Network: The home network that provides IP ba
46、sed data services to the user. This network is where the users NA1 is homed. This network may be a private corporate network, publicly accessible ISP network or an IMT-2000 network. Local Network An IP network that is directly connected to the PDSN (nominally, the serving IMT-2000 service provider n
47、etwork). Packet data service: A general term describing a packet switched data service offered by an IMT-2000 network to a mobile subscriber (user). Packet data service option: A service option provides a means between MS and RN to establish and maintain cdma2000 traffic channels for packet data ser
48、vice. Packet data session: Describes an instance of continuous use of packet data service by the user. A packet data session begins when the user invokes packet data service. A packet data session ends when the user or the network terminates packet data service. During a particular packet data sessi
49、on, the user may change locations but the same IP address is maintained. Therefore for Simple IP service, moving from the coverage area of one PDSN to another PDSN constitutes a change in packet data session. For Simple IP service, a packet data session and a PPP session occur at the same time. For Mobile IP service, a packet data session can span several PDSNs as long as the user continuously maintains mobility bindings at the Home Agent and there is no lapse in Mobile IP registrationsh-e- registrations. PPP Session: A PPP session describes the time during which a particular PPP connection
