Inter-AGW HO Notice Contributors grant a free, irrevocable license to 3GPP2 and its Organization Partners to incorporate text or other copyrightable material.

Inter-AGW HO

NoticeContributors 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.

October 18, 2007

Qualcomm Inc.

Handoff scenarios with different LinkID

3

C-MIPv4 FA-CoA

AT

HA

AGW1FA

AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID2

IP_eBS1{GRE[IP_ATHoA(Payload)]}

IP_AGW1[IP_ATHoA(Payload)]

IP_ATHoA(Payload)

AT

HA

AGW1FA

AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID2

IP_eBS1{GRE[IP_ATHoA(Payload)]}

IP_AGW1[IP_ATHoA(Payload)]

IP_eBS2{L2TPv3[IP_ATHoA(Payload)]}

IRTP[IP_ATHoA(Payload)]

AT

HA

AGW1 AGW2FA

eBS1 eBS2

Route1LinkID1

Route2LinkID2

IP_eBS2{GRE[IP_ATHoA(Payload)]}

IP_AGW2[IP_ATHoA(Payload)]

IP_ATHoA(Payload)

•No interface required between AGWs

•Each Route presents different LinkIDbecause same LinkID from both Routeswould require MIPv4 FA in LMA

4

PMIP

AT

LMA

AGW1 AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID2

IP_eBS1{GRE[IP_AT(Payload)]}

IP_AGW1[IP_AT(Payload)]

IP_AT(Payload)

AT

LMA

AGW AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID2

IP_eBS1{GRE[IP_AT(Payload)]}

IP_AGW1[IP_AT(Payload)]

IP_eBS2{L2TPv3[IP_AT(Payload)]}

IRTP[IP_AT(Payload)]

AT

LMA

AGW1 AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID2

IP_eBS2{GRE[IP_AT(Payload)]}

IP_AGW2[IP_AT(Payload)]

IP_AT(Payload)

•No interface required between AGWs

Handoff scenarios with same LinkID

6

C-MIPv4 FA-CoA

AT

HA

AGW1FA

AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP_eBS1{GRE[IP_ATHoA(Payload)}

IP_AGW1[IP_ATHoA(Payload)]

IP_ATHoA(Payload)

AT

HA

AGW1FA

AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP_eBS1{GRE[IP_ATHoA(Payload)]}

IP_AGW1[IP_ATHoA(Payload)]

IP_eBS2{L2TPv3[IP_ATHoA(Payload)]}

IRTP[IP_ATHoA(Payload)]

AT

HA

AGW1FA

AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP_eBS2{GRE[IP_ATHoA(Payload)]}

IP_AGW1[IP_ATHoA(Payload)]

IP_ATHoA(Payload)

IP_eBS2{GRE[IP_ATHoA(Payload)]}

•No custom 3GPP2 interface requiredbetween AGWs

•AGW2 simply acts as a router betweenAGW1 and eBS2

•Packets may flow through a routernear AGW2 rather than

through AGW2

FA anchored in source AGWinstead of custom interface between AGWs

7

PMIP

AT

LMA

AGW1MAG

AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP_eBS1{GRE[IP_AT(Payload)]}

IP_AGW1[IP_AT(Payload)]

IP_AT(Payload)

AT

LMA

AGWMAG

AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP_eBS1{GRE[IP_AT(Payload)]}

IP_AGW1[IP_AT(Payload)]

IP_eBS2{L2TPv3[IP_AT(Payload)]}

IRTP[IP_AT(Payload)]

AT

LMA

AGW1MAG

AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP_eBS2{GRE[IP_AT(Payload)]}

IP_AGW1[IP_AT(Payload)]

IP_AT(Payload)

IP_eBS2{GRE[IP_AT(Payload)]}

•No interface required between AGWs

•AGW2 simply routes packets betweenAGW1 and eBS2

•Packets may flow through a routernear AGW2 rather thanthrough AGW2

MAG anchored in source AGWinstead of custom interface between AGWs

8

Pure Simple IP

AT

CN

AGW1 AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP_eBS1{GRE[IP_AT(Payload)]}

IP_AT(Payload)]

IP_AT(Payload)

AT

CN

AGW1 AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP_eBS1{GRE[IP_AT(Payload)]}

IP_AT(Payload)

IP_eBS2{L2TPv3[IP_AT(Payload)]}

IRTP[IP_AT(Payload)]

AT

CN

AGW1 AGW2

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP_eBS2{GRE[IP_AT(Payload)]}

IP_AT(Payload)

IP_AT(Payload)

IP_eBS2{GRE[IP_AT(Payload)]}

•No interface required between AGWs

•AGW2 simply routes packets betweenAGW1 and eBS2

•Packets may flow through a routernear AGW2 rather thanthrough AGW2

Handoff scenarios with Dual Anchor

10

Dual Anchor Handoff

AT

AGW1FA/LMA

AGW2FA

eBS1 eBS2

Route1LinkID1

Route2LinkID1

IP1

HACNHoA

PMIP Binding for IP1

CMIP Binding for HoA/CoA

(1) (1)

(2)

(2)

(3)

(3)

•No special interface required between AGWs other than PMIP interface

•AGW1 serves as LMA when the AT moves to the AGW2

•AGW2 serves as a FA for CMIP

•Both IP addresses (IP1 and HoA) remains same before and after inter-AGW HO

11

No need for Inter-AGW interface

• Seamless inter-AGW handoff for all scenarios

• Less and faster standardization

• Less development

• No change to DO PDSN (in case of UMB-DO handoff)

• Faster, smoother, lower cost upgrade path from DO to UMB