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“ MIN-based IMSI ” to “ True IMSI ” Migration Guidelines

“ MIN-based IMSI ” to “ True IMSI ” Migration Guidelines. Alain Bouvier alain.bouvier@ericsson.com CDG International Roaming Team Meeting Whistler, CAN, September 20-21, 2005. Table of Content. Requirements Team Composition Standards and Mobile Identity Access Channel PDUs’ Addressing

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“ MIN-based IMSI ” to “ True IMSI ” Migration Guidelines

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  1. “MIN-based IMSI” to“True IMSI” Migration Guidelines Alain Bouvier alain.bouvier@ericsson.com CDG International Roaming Team Meeting Whistler, CAN, September 20-21, 2005

  2. Table of Content • Requirements • Team Composition • Standards and Mobile Identity • Access Channel PDUs’ Addressing • VLR Addressing • Core Network Signaling • IMSI Numbering Plan “ESC Code” • Recommendations • Next Step TAKING YOU FORWARD

  3. Requirements • EDUCATE / INFORMProvide a general understanding of CDMA mobile networks in the context of the mobile station identity: • “MIN-based IMSI” – Historical and Technical Overview; • CDMA Standards Overview (IS-95/IS-2000, IOS/IS-2001, ANSI/IS-41); • Radio Access Network Overview (Access Channel Addressing); • Core Network Overview (VLR Addressing and CN Signalling); • International Roaming Issues (IRM exhaustion, Signalling/Routing, …); • GUIDEProvide guidance to operators for “True IMSI” support: • General Recommendations; • “MIN-based IMSI” Network Support for Inbound “True IMSI” Roamers; • “MIN-based IMSI” Network Support for local “True IMSI” subscribers; • “True IMSI” Network Support for Inbound “MIN-based IMSI” Roamers.

  4. Team Composition • Members: • Andrew Hunter (Qualcomm); • Alejandro Holcman (Qualcomm); • Alain Bouvier (Ericsson); • Want to contribute? • Charging & Billing System Considerations; • Testing; • Signalling and Routing; • Roaming Agreement; • Provisionning; • Other?

  5. Core Network MSID (MIN/IRM or IMSI) Radio Access Network MIN / IMSI SCPs STP HLR RBS BSC MSC/VLR Air Interface[IS-95/IS-2000] Inter-Operability Specification [IOS/IS-2001] MCs/OTAF Intersystem Operation [ANSI/IS-41] Standards and Mobile Identity

  6. 1 PROGRAMMED 2 RECEIVED STORED SENT RBS BSC 3 Mobile Station Radio Access Network Access Channel PDUs’ Addressing

  7. IMSI_M MIN / IRM BSC MSC/VLR HLR VLR Record IMSI_MAddressing MIN/IRMAddressing IMSI_T IMSI_T BSC MSC/VLR HLR VLR Record IMSI_TAddressing IMSI_TAddressing VLR Addressing

  8. HLR/AC HLR/AC MCOTAF RBS MIN/IRM MCOTAF IS-95-AMS MIN/IRM IMSI IMSI HLR/AC RBS BSC MSC/VLR IMSI IS-95-BIS-2000MS MCOTAF RBS BSC Local / Visited Network Domestic or International Foreign Network Core Network Signaling

  9. Class 0 “True IMSI” MCC MNC MSIN Class 1 “True IMSI” MCC MNC MSIN “MIN-based IMSI” MCC MNC MIN/IRM IMSI Numbering Plan “ESC Code” d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 3 or 5 DigitsESC Code

  10. Recommendations • General: • MNC assignment; • Network Code Broadcasting; • ANSI/IS-41 message routing; • Mobile Station Identity Provisioning; • Etc. • Migration Specific • Charging & Billing System; • Testing; • Signalling and Routing; • Roaming Agreement; • Provisioning; • Upgrade Scheduling; • Etc.

  11. Next Step • IMSI_T Working Group – beyond IRT.

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