Cdma gprs data roaming proposals
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CDMA/GPRS Data Roaming Proposals. 2004/3/11 Masa Shirota, Raymond Hsu and Jack Nasielski QUALCOMM Inc. Outline. Status in 3GPP2 QUALCOMM’s proposal Requirements and Principles Reference Model Roaming Scenario. Status in 3GPP2.

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CDMA/GPRS Data Roaming Proposals

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Cdma gprs data roaming proposals

CDMA/GPRS Data Roaming Proposals

2004/3/11

Masa Shirota, Raymond Hsu and Jack Nasielski

QUALCOMM Inc.


Outline

Outline

  • Status in 3GPP2

  • QUALCOMM’s proposal

    • Requirements and Principles

    • Reference Model

    • Roaming Scenario


Status in 3gpp2

Status in 3GPP2

  • QUALCOMM, VZW, Ericsson, ZTE, and Bridgewater jointly proposed a work item ‘CDMA/GPRS Data Roaming Support’ toTSG-X in December 2003.

  • It has been approved as a work item by the group.

  • QUALCOMM brought a high level design for CDMA/GPRS Data Roaming to TSG-X in February 2004. But, due to lack of time in the meeting, it was not discussed in detail yet.

  • QUALOMM and interested companies will bring a contribution for the Workplan of CDMA/GPRS Data Roaming in TSG-X March meeting.


Way forward in 3gpp2

Way Forward in 3GPP2

  • QUALCOMM provides a contribution (X30-20040209-007) which describes technical details for CDMA/GSM data roaming high level design to CDG IRT as FYI.

  • CDG IRT should send a liaison to indicate their interest (if the team agrees) to TSG-X. It will expedite the process of standardization.

  • Carriers inputs toTSG-X are highly required to move forward.


Qualcomm s proposal overview

QUALCOMM’s Proposal Overview


Requirements

Requirements

  • Roaming Direction

    • Both directions (CDMA2000 <-> GPRS> will be supported.

  • Authentication and Authorization

    • The roaming MS shall be authenticated and authorized by the home network.

  • Roaming Connectivity

    • The roaming MS will establish connectivity to the Internet through the serving system directly, or through the serving and home systems.

  • Data Integrity and Privacy of signaling and bearer data will be supported.

  • Accounting

    • The accounting information for the MS’s roaming access will be made available to the home system.

    • A set of accounting record types will be defined for CDMA2000/GPRS data roaming.


Principles

Principles

  • Enhance the current Interworking and Interoperability Function (IIF) [J-STD-038] to support CDMA2000/GPRS packet data roaming.

  • No change is required to the GPRS standards

  • Minimize changes to the CDMA2000 packet data standards [IS-835].


Reference network model

Reference Network Model


Interworking and interoperability function

Interworking and Interoperability Function

  • IIF provides service access when a subscriber operates in a visited network whose signaling and network protocols are different from the home network’s protocols.

  • Functions are:

    • GSM HLR/VLR and ANSI-41 HLR/VLR emulation for registration

    • GGSN/SGSN and HA/FA emulation for bearer connectivity in Mobile IP

    • GGSN/SGSN and LAC/LNS emulation for bearer connectivity in Simple IP

    • AAA emulation for accounting

  • Required functions are different in each roaming scenario.


Roaming scenarios

Roaming Scenarios

  • Mobile IPv4 in the GPRS foreign mode

    • CDMA2000 packet data native subscriber operates Mobile IPv4 in a visited GPRS system

  • Simple IP in the GPRS foreign mode

    • CDMA2000 packet data native subscriber operates Simple IP in a visited GPRS system

  • Mobile IPv4 in the CDMA2000 packet data foreign mode

    • GPRS native subscriber operates Mobile IPv4 in a visited CDMA2000 packet data system

  • Simple IP in the CDMA2000 packet data foreign mode

    • GPRS native subscriber operates Simple IP in a visited CDMA2000 packet data system


Annex definitions

Annex: Definitions

  • Follow J-STD-038 notation style

  • CDMA2000 Packet Data Native Subscriber

    • User whose home subscription resides in a CDMA2000 packet data system.

  • GPRS Native Subscriber

    • User whose home subscription resides in a GPRS system.

  • CDMA2000 Packet Data Foreign Mode

    • GPRS native subscriber accessing a CDMA2000 packet data system.

  • GPRS Foreign Mode

    • CDMA2000 packet data native subscriber accessing a GPRS system.

  • CDMA2000 Packet Data Native Mode (outside the scope)

    • CDMA2000 packet data native subscriber accessing a CDMA2000 packet data system.

  • GPRS Native Mode (outside the scope)

    • GPRS native subscriber accessing a GPRS system.


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