RE: [Seamoby] Minutes for Meeting at IETF 53

Hello Bachet,
I did not mean that Mobile/IP handover occurs at 
BTS. But some inter-BTS handover causes Mobile/IP handover.
Suppose you have BTS 1 to 5 mapped to FA1 and BTS 5 to 10 mapped 
to FA2. When L2 trigger indicates that MN is moving from BTS 1 to 
BTS 5, the trigger handler knows that it has to initiate 
Mobile/IP handover. Similarly, when trigger indicates that
MN is moving from BTS 1 to BTS 2,  the trigger handler knows 
that there is no need to initiate Mobile/IP handover.
Hope this helps. 
regards,
ajoy

-----Original Message-----
From: Behcet Sarikaya [mailto:behcet.sarikaya@alcatel.com]
Sent: Friday, April 26, 2002 9:31 AM
To: seamoby@ietf.org
Subject: Re: [Seamoby] Minutes for Meeting at IETF 53

Hello Ajoy,
  Do you mean to say that BTS is where Mobile IP handover occurs, i.e. 
BTS of 1xRTT was where FA was placed in your experiment? If yes then how 
do you reconcile this with the standard architecture?
  Can you please provide more details so that we can better understand 
what you did?

Regards,

Singh Ajoy-ASINGH1 wrote:

>Eunsoo/James,
>
>We implemented both source as well as target trigger scenarios 
>of Low latency handoff draft. In case of source trigger, the 
>Pre-trigger indication at source FA provides the BTS id of the 
>target BTS to which MN is moving to. The L2 trigger 
>handler at the oFA resolves BTS-ID to obtain the IP address
>of the nFA. We used static table to resolve IP address from the 
>given BTS-ID. Similarly, in case of target trigger, the 
>Pre-trigger indication at nFA provides the BTS-ID of 
>the source BTS from which the MN is moving from. The L2 trigger
>handler at nFA resolves source BTS-ID to obtain the IP address 
>of the source FA. Pre-trigger indication is sent from 
>radio network controller to foreign agent as soon 
>as link layer handoff is detected based upon power
>measurement. Hope this helps. 
>
>regards,
>ajoy 
>
--behcet

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