1. Clarifications on Work Split among TSG-X/A for 3GPP2 Network Evolution March 26, 2007 Airvana/Alcatel-Lucent/CTC/Fujitsu/ Hitachi/KDDI/NEC/Qualcomm/ZTE Notice Contributors grant a free, irrevocable license to 3GPP2 and its Organization Partners to incorporate text or other copyrightable material contained in the contribution and any modifications thereof in the creation of 3GPP2 publications; to copyright and sell in Organizational Partner’s name any Organizational Partner’s standards publication even though it may include portions of the contribution; and at the Organization Partner’s sole discretion to permit others to reproduce in whole or in part such contributions or the resulting Organizational Partner’s standards publication. Contributors are also willing to grant licenses under such contributor copyrights to third parties on reasonable, non-discriminatory terms and conditions for purpose of practicing an Organizational Partner’s standard which incorporates this contribution. This document has been prepared by the contributors to assist the development of specifications by 3GPP2. It is proposed to the Committee as a basis for discussion and is not to be construed as a binding proposal on the contributors. Contributors specifically reserve the right to amend or modify the material contained herein and nothing herein shall be construed as conferring or offering licenses or rights with respect to any intellectual property of the contributors other than provided in the copyright statement above.

2. Terms of Reference (ToR) TSG-A: –The TSG Access Network Interfaces (TSG-A) is responsible for the specifications of interfaces between the radio access network and core network, as well as within the Access Network. TSG-X: –The TSG Core Networks (TSG-X) is responsible for the specifications of the Core network part of systems, based on 3GPP2 specifications.

3. 3GPP2 Evolved Network for UMB access AT PCRF Ty AAA Internet Intranet PDSN IMS Tx eBS HA AGW SRNC RNCBS Ty ? TSG-A DomainTSG-X Domain A8/A9A10/A11 A12

4. TSG-A Work Based on ToR The Interface between SRNC and eBS Inter eBS Interface Inter SRNC Interface The interface between eBS and AGW: –AAA protocol for accounting and accounting procedures –Tunneling Protocol (e.g., PMIP) and procedures –Protocol and procedures for policy and session QoS delivery (e.g., Ty relay) The Interface between SRNC and AGW: –AAA protocol and procedures for proxy of the EAP-based Access Authentication and Authorization (optional) –Protocol and procedures for policy and session QoS delivery (e.g., Ty relay) –Tunneling Protocol (e.g., PMIP) and procedures (if any) The Interface between SRNC and AAA: –AAA protocol and procedures for the EAP-based Access Authentication and Authorization

5. UDR carried in AAA protocol from eBS to AGW Policy and Session QoS carried in AAA protocol from AGW to S- RNC/eBS Inter AGW Handoff Any interfaces between AGW and other Core IP network entities (for example, HA, AAA, PCRF etc) IP Address Assignment IP Services Operations –Simple IPv4 –Simple IPv6 –MIPv4 –MIPv6 Other IP Services: –Hot lining –NFCC etc –… UMB and non-3GPP2 network Data Roaming TSG-X Work Based on ToR

6. Conclusion There is no confusion at all on the work distribution between TSG-A and TSG-X –This is just a Clarification and FYI contribution! TSG-A and X must be responsible for their specifications based on current Terms of Reference Unless Terms of Reference of TSG-A and TSG-X are changed by SC, TSG-A and X work for network evolution must be progressed –Note that the schedules for completing network specifications in both TSG-A and TSG-X are very tight –We should not spend too much time on work distribution discussions