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RE: stds-802-16-mobile: Creating Unique Identities for the two mobility PARs

Dear Mark,

I think that we disagree on the 802.16 scope. We are not looking for 
"backward compatibility" with our existing 802.16a standard.

We are looking to improve the existing 802.16a standard, to support 
high speed, high data rates mobility.

We think that we can take advantage of > 80% of 802.16 MAC, by adapting
 it to support mobility.

And we do not target "pedestrian mobility". We know, due to work done
 within 802.16 SG, that even the existing 802.16a OFDM and OFDMA
 PHY work at very high speeds.

I think that a key difference issue is the data rate. We look to converge
fixed and mobile wireless service, based on high data rates provided by
both BS and CPE equipment. We will be able to target mobile terminals,
 as well as to provide mobile symmetrical feeding for moving "Hot Spots".



-----Original Message-----
From: Mark Klerer []
Sent: Sunday, November 03, 2002 1:44 AM
To: 'Kiernan, Brian G.'; ''
Cc: ''; '';
Subject: stds-802-16-mobile: Creating Unique Identities for the two mobility

Roger, Brian 
In response to the SEC chair's request that we work toward defining unique
identities of the two mobility PARs, I would like to suggest the following.
The 802.16 Study Group has the charter of allowing the evolution of 802.16
compliant systems toward supporting mobility. To that end it would appear
logical that changes to the PHY and MAC be fully backward compatible with
the existing specification and that no a priori statement be made about the
station speed that can be supported by such a system. I would like to
suggest that the PAR therefore focus on these aspects and that the project
scope be described as:
To amend the 802.16 standard to support combined fixed and mobile operation
from within a single system. The extension will address PHY and MAC changes,
that are fully backward compatible, while supporting mobile subscriber
operation and roaming between 802.16 base-stations or their sectors. This
amendment will allow high spectral efficiency (3~4 bits/s/Hz), macrocell
sizes and NLOS operation.
The ECSG PAR's objective, on the other hand, is to develop a standard that
is optimized for broadband wireless data mobility without any a priori
assumptions about the technologies used to realize that objective. The PAR,
therefore, states the design objective of developing a spectrally efficient
solution that will support mobility classes up to 250 Km/h. I believe that
there are no changes required in the wording of that PAR.
In essence we then have two PARs with, one addressing the need for a
solution optimized for full vehicular mobility and the other the need for
extending the capabilities of 802.16 systems to support a level of mobility.

This is a new proposal that I believe should allow the SEC to approve both
PARs. I am copying the two mobility groups in order to get their reaction to
this proposal and see if they will agree to such PARs. If this is acceptable
we could formally revise the PAR on Monday or Tuesday and approach the SEC
on Friday with a consensus position.
Mark Klerer
135 Route 202/206 South
Bedminster, NJ 07921
. E-mail: 
(    Phone: 908-997-2069          
6    Fax:     908-997-2050
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