Subject: RE: [seamoby] cart-before-seamoby

From: "Michael A. Ramalho" <[email-masked]>
Date: Wed, 03 Jan 2001 20:08:41 -0500

At 05:49 PM 1/3/01 -0500, Gary Kenward wrote: 
>
> Someone at the CRAPS BOF was adamant - and I agree - that
> seamless mobility should support handover between access 
> networks (full stop).
>  
> By definition, some of these access networks may be wired. Some
> of these access networks may involve wireless links where the
> sensing and calculation of RSSI is either meaningless, or uneconomical.
> The origin of the "handoff trigger" as someone called it, is the 
> purview of the access network designer, not SeaMoby.

Our draft agrees ... for the case of a "network generated handoff trigger".
Our draft also admits the possibility of a "mobile node generated handoff
trigger". The "handoff decision" could be made by the access network
or the mobile node or either ... depending on the particular technology
involved.

>
>  
> Gary
>>
>> -----Original Message-----
>> From: Kulwinder Atwal [mailto:[email-masked]]
>> Sent: Wednesday, January 03, 2001 12:46 PM
>> To: 'Michael A. Ramalho'; Kenward, Gary [WDLN2:AN10:EXCH];
>> [email-masked]
>> Subject: RE: [seamoby] cart-before-seamoby
>>
>>
>> These seem to be related to a particular network technology, right?
>>
>> That is ... given a network (radio/spectrum) design ... then "network
>> handoff triggers" are determined by the network designers ... and these
>> triggers can use such information to help determine when the
>> "triggering events" should be requested, right?
>>  
>> Is this not for wireless networks?
>>  
>> If so, then EVERY wireless network has a RF signal.  Not just Bluetooth.
>> And every radio I have ever put my hands in has had a RSSI.
>> This includes Shortwave, VHF, UHF, Microwave, Bluetooth and yes even cell
>> phones.
>> This is how a radio measures the signal strength.  Some radios called it the
>> Recieve Signal 
>> Strength Indicator, while others call it the Radio Signal Strength
>> Indicator.
>> This is fundemental.   Fundemental wireless terminology.
>> Look on your cell phone display, you will see it.
>>  
>> If you want to come up with a wireless protocol you must be willing and able
>> to learn and use some basic wireless terminology.
>>  
>> If you are working on a wired protocol then you should say so.
>>  
>>  
>>  
>> - Kulwinder
>>  
>>  
>

Michael A. Ramalho, Ph.D.
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