1. X00-20110328-xxx China Telecom Requirements on Accounting at HA/LMA Title: Accounting at HA/LMA for cdma2000 (Work Item # 3GPP2-00279) Sources: China Telecom Contact: Peirong Xie (xiepr@gsta.com) Zhang Lan (zhangl@gsta.com) Wenyi Li (liwenyi@gsta.com Sun Hai ( sunhai@sttri.com.cn) Recommendation: China Telecom presents requirements for Accounting at HA/LMA. TSG-X / PDS WG is requested to take action for early completion of the Approved Work Item. China Telecom (CTC) grants 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. CTC is 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 CTC 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 contributors. CTC specifically reserves the right to amend or modify the material contained herein and to any intellectual property of contributors other than provided in the copyright statement above.

2. 2 3GPP2 Work Item # 00279 Work Item Title:  Accounting at HA/LMA for cdma2000 Networks Abbreviated Work Item Description:  For operator’s requirement, in cdma2000 networks, HA (Home Agent)/LMA (Local Mobility Anchor) needs to support accounting functionality.  In order to support accounting at the HA/LMA, MIPv4 and PMIPv4/v6 procedures between the PDSN and the HA/LMA must be enhanced through the use of 3GPP2 Organization Specific Mobility Extensions/Options. This work item may not address accounting at the HA/LMA for MIPv6 mode of operation. Work Item Approval:  The work item has been supported by several companies and approved during November, 2010

3. Accounting Policy  China Telecom Accounting Policy based on:  Time-of-day considerations  MS Location considerations  Packet Content considerations  All combinations of the above 3

4. Accounting Policy Implementation  Accounting Policy and information derived thereof is China Telecom Privileged Information  Such information cannot be distributed to entities that cannot be secured per China Telecom operational and business requirements  Theoretically Accounting Policy may be hosted at:  PDSN –PDSN could be in the visited domain - so cannot be trusted to host accounting policy and the information derived thereof  HA/LMA in Visited Domain –China Telecom network does not support dynamic HA/LMA selection in the visited domain, so no HA/LMA in the visited domain  HA/LMA in Home Domain –Accounting policy at the HA/LMA in the home domain meets China Telecom operational and business requirements 4

5. IP Address Modes of Operation  Simple IP Address mode of operation  China Telecom network supports Simple IPv4 and Simple IPv6 modes of operation with network PMIPv4/v6 support (per X.S0061) between the PDSN and the HA/LMA  MIPV4 Address mode of operation  China Telecom network does not support MIPv4 address mode of operation  MIPv6 Address mode of operation  China Telecom network does not support MIPv6 address mode of operation 5

6. Immediate Requirements  HA/LMA based Accounting for Simple IPv4/v6 addressing mode with network-PMIPv4/v6 mode of operation  Accounting Policy at HA/LMA  China Telecom has made significant investments on MIP based protocols  R-P Interface, P-P Interface and network-PMIPv4/v6 Interface  Investments for the validation of above stated interfaces and associated protocols  Preservation of investments and resources is an important consideration for China Telecom in the selection of a solution for implementing Accounting at HA/LMA 6

7. X.S0011 Accounting Architecture 7 Accounting Architecture with Fast Handoff Accounting Architecture

8. China Telecom Vision of Architecture with Accounting at HA/LMA 8

9. China Telecom Vision of: Architecture with Accounting at HA/LMA with Fast Handoff 9

10. Request to TSG-X PDS Working Group 3GPP2-00279 Work Item Description:  In order to support accounting at the HA/LMA, MIPv4 and PMIPv4/v6 procedures between the PDSN and the HA/LMA must be enhanced through the use of 3GPP2 Organization Specific Mobility Extensions/Options. This work item may not address accounting at the HA/LMA for MIPv6 mode of operation.  TSG-X PDS Working Group is requested to put focus on early development of specifications based on the Approved Work Item # 3GPP2-00279 10

11. Thanks 11