TR 123 923 : 3.0.0

Foreword
Introduction
1 Scope
2 References
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 Working Assumptions
5 Requirements on UMTS Packet Domain
6 Current Status of Mobile IP, March 1999
   6.1 Mobile IP RFC's
   6.2 Mobile IP+ Drafts
   6.3 Basic Principles of Mobile IPv4
   6.4 Differences between IPv4 and IPv6
   6.5 Reverse tunnels
   6.6 Use of Route Optimisation
7 Stepwise introduction of Mobile IP in the CN
   7.1 Step 1 - Offering Mobile IP(+) service
   7.2 Step 2 - Intermediate GPRS-MIP(+) system
   7.3 Step 3 - Using Mobile IP+ for Intra System Mobility
8 General Considerations and Explanations
   8.1 The Care-of address
   8.2 The Home Address
   8.3 Location of the HA and the FA
   8.4 Terminal aspects
   8.5 Need for Broadcasting over Radio
   8.6 Security
   8.7 AAA (Authentication, Authorisation and Accounting) and
        Roaming issues
   8.8 UMTS/GPRS Charging
9 First Step: MIP(+) in overlay to GPRS
   9.1 General Design Criteria
   9.2 Assumptions
   9.3 Using the APN to Find a GGSN/FA
   9.4 Detailed Description of Mobile IP(+) Registration in a
        UMTS/GPRS PLMN
   9.5 The UMTS/GPRS Detach Procedure
   9.6 Summary of Alterations of and Additions to Current GPRS
        Standards for Step 1
10 Second Step: Intermediate UMTS/GPRS-MIP(+) System
   10.1 The GGSN/FA Change
   10.2 GGSN/FA denial of service
11 Third Step: Target Architecture
   11.1 General Design Criteria for step 3
   11.2 Assumptions
   11.3 Using the APN to select MIP service
   11.4 Session activation for ME requesting MIP(+) service and
        equipped with a MIP(+) client
   11.5 User mobility support for ME requesting MIP(+) service
        and equipped with a MIP(+) client (GPRS)
   11.6 User mobility support for ME requesting MIP(+) service
        and equipped with a MIP(+) client (UMTS)
   11.7 Traffic Cases
   11.8 Service Support
12 Compatibility Issues
   12.1 IPv4 - IPv6
   12.2 UMTS/GPRS - Mobile
13 Driving Forces
   13.1 Mobile IP+ is standardised by the IETF
   13.2 Mobile IP(+) is an end-to-end solution
   13.3 Mobile IP(+) can support cellular and non cellular
        access
   13.4 Mobile IP(+) does not impact location registers
14 Open Issues
15 Conclusions
Annex A: Mobile IP
      A.1 Basic architecture
      A.2 Route optimisation
      A.3 Security aspects
Annex B: Document change history

Specifies and evaluate an architecture that uses Mobile IP+ for mobility management and tunnelling within the CN.