1. ABSTRACT: This contribution provides a proposal for 3GPP2 Network evolution. TITLE: 3GPP2 Network Evolution Architecture Proposal TSG-X WG3 RECOMMENDATION: Review and Adopt Samsung Electronics grant a free, irrevocable license to 3GPP2 and its Organizational 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 all or portions of this contribution; and at the Organizational Partner's sole discretion to permit others to reproduce in whole or in part such contribution or the resulting Organizational Partner's standards publication. Samsung Electronics 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 Samsung Electronics 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 Samsung Electronics. Samsung Electronics specifically reserves the right to amend or modify the material contained herein and to any intellectual property of Samsung Electronics other than provided in the copyright statement above. X30-20061204-xxx DATE: December 04, 2006 SOURCE: Kyungjoo Grace Suh, Bill Semper, B.S. Bae, Veronika Kondratieva, Naehyun Lim, Daegyun Kim Tel. +82-31-279-5123 Mobile +82-16-9530-5123 joo.suh@samsung.com Notice

2. 2/6 Samsung’s Design Principles  Network architectures of 3GPP2 and non-3GPP2 (e.g. 3GPP, WiMAX) should be similarly evolved to be easily harmonized in the future. The architecture composed of ATE-GW (Advanced Technology Evolution Gateway) and Evolved BS is common architecture to 3GPP, 3GPP2 and WiMAX. The proposed functionalities of network entities are almost the same as those of 3GPP SAE and WiMAX network architecture. ATE-GW includes paging control, location update, and idle mode management functions. The common hardware platform can be used for supporting various access technologies.  The evolved network shall provide the handoff performance improvements for inter-technology L2 handoff (HRPD Rev’A and Rev’C, 3GPP, M-WiMAX, WLAN). Existing air handoff messages are modified and/or new air handoff messages are introduced in order to enable inter-technology L2 handoff. Inter-access gateway interface for transferring inter-technology context is to be provided in order to improve the inter-technology L2 handoff performance

3. 3/6 Proposed Network Architecture PDSN DO AN PDIF WLAN AP HA DHCP Server AAA DO AN ATE-GW Rev’C E-BS Rev’C E-BS Rev’C E-BS Rev’C E-BS PCF ATE-GW BS IPGW IP Network Core IP Network P- P’ A10/A11R6 PDSN DO AN PCF P- P’ 3GPP2 ATE N/W3GPP2 Legacy N/W Non 3GPP2 N/W (e.g. 3GPP, WiMAX) Non 3GPP2 N/W (WLAN) 3GPP2 Legacy N/W Ax Key Features Similar Network Topology over multiple accesses Inter-technology L2 HO Cell ACell BCell CCell DCell ECell HCell FCell G MS (DO, Rev’C, 3GPP, WiMAX, WLAN)

4. 4/6 Proposed Network Entity Function FunctionsATE GWE-BS IP Address Management (CoA)O Foreign Agent (FA) for MIPv4O DHCP RelayO PMIP ClientO IP Packet ClassificationO IP Header Compression (ROHC)O QoS EnforcementO Paging ControllerO Location ManagementO AAA ClientO Accounting Consolidation/AggregationO EAP AuthenticatorO L2 CipheringO (optional)O PHY/MACO ARQ/HARQO Radio Resource ManagementO Radio Channel Allocation/ ManagementsO

5. 5/6 Interface Description InterfaceCharacteristicsOther technology 1ATE GW –- E-BS Paging, Location/Session update Tunneling Management (Bearer Plane) Legacy: A10/11, A8/A9 WiMAX: R6 2ATE GW –- ATE GW pp’ for active handoff Proxy MIP Context transfer Legacy: P-P WiMAX: R4 3ATE GW –- PDSN pp’ for active handoff Proxy MIP Context transfer Legacy: P-P WiMAX: R4 4ATE GW –- IPGW pp’ for active handoff Proxy MIP Context transfer Legacy: P-P WiMAX: R4 5ATE GW –- HA Client MIP/Proxy MIP Support Legacy: MIP WiMAX: R3

6. 6/6 Advantages of Proposed Architecture  The proposed architecture is almost the same as those of 3GPP and WiMAX architecture. Also, common H/W platform can be provided for supporting various access technologies  Handoff performance with legacy 3GPP2 network and other access technologies (e.g. 3GPP, WiMAX, WLAN) ATE GW provides the interface to support Layer 2 handoff with legacy PDSN and other access technologies  Light BS (comparing to Flat) and intelligent ATE GW Light BS with essential air-dependent functions can be simple and inexpensive  Various IP and security functions in ATE GW IP and security functions can be easily integrated in ATE GW