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[802SEC] Mobile Broadband Wireless Access--distinction between the ECSG and 802.16 SG

Dear SEC,


In the past week, so far Mat Sherman has been the only one to weigh in on the minimal distinction between the ECSG and 802.16 SG projects on Mobility.  This is an important topic – one that will benefit from discussion on the SEC reflector.  I’m sure there are more opinions on this subject than just Mat’s—let’s air them on the reflector so that we are better prepared to make an informed decision on how to proceed during our plenary session. 


Remember, the major reasons for requiring PARs to be submitted 30 days in advance of the plenary was to permit enough time for discussion and debate.  Let’s take advantage of the time.




--Paul Nikolich


-----Original Message-----
From: Matthew Sherman []
Sent: Saturday, October 12, 2002 12:37 AM
To: ''; IEEE802
Subject: RE: [802SEC] Mobile Broadband Wireless Access--distinction between the ECSG and 802.16 SG project authorization requests


Hi Paul & Everyone,


I actually have a lot of strong opinions here, but prefer to be brief for now.  Perhaps I'll get boo'd, but I've always been very pro "let the market decide".  In a perfect world, I think only the ECSG PAR should go forward, since in my mind it has the broader scope (allows solutions other than 802.16), and then the 802.16 folks should propose a solution within the ECSG group based on 802.16.  The ECSG PAR might require a few small updates to absorb any minor outages from the 802.16 PAR but I doubt that's an issue.   However, I recognize that if people don't find an outlet in 802, they will probably take it somewhere else.  Even if we force them to merge, they would either try to split later, or (as seems to be the rule these days) come up with a let's do both standard.  So procedurally, I think we should make sure the PARs are distinct it their goals (usually it's not that hard to find some trivial distinction).  We should probably encourage them to have close ties and consider merging if at all possible along the way.  But I feel we should let both go forward if at all possible.



Matthew Sherman
Vice Chair, IEEE 802
Technology Consultant
Communications Technology Research
AT&T Labs - Shannon Laboratory
Room B255, Building 103
180 Park Avenue
P.O. Box 971
Florham Park, NJ 07932-0971
Phone: +1 (973) 236-6925
Fax: +1 (973) 360-5877

-----Original Message-----
From: Paul Nikolich []
Sent: Friday, October 11, 2002 6:35 PM
To: IEEE802
Subject: [802SEC] Mobile Broadband Wireless Access--distinction between the ECSG and 802.16 SG project authorization requests

Dear SEC members,


Both the Executive Committee Study Group on Mobile Broadband Wireless Access and the 802.16 Mobile Wireless Access Study Group have submitted Project Authorization Requests for projects that, as far as I can tell from the PARs, address the same market and application space.  This concerns me.


The only substantive difference in the PARs that I can see is that the 802.16 SG proposes to amend the 802.16 MAC/PHY to enable mobile operation, while the ECSG does not presume using the 802.16 standard as a starting point.  This confuses me-when we approved the 802.16 SG in July, it was to focus on enhancements to the 802.16a PHY/MAC for 'limited mobility' in the 2-11GHz band, whilst the ECSG was targeting 'high mobility' in the sub 3.5GHz band.  This established some, albeit small, distinction between the ECSG (0-3.5GHz, up to 250km/h) and 802.16 SGs (2-11GHz, limited mobility) activities.  Now, the gap has narrowed-narrowed to the point that I think the SEC must consider whether or not it makes sense to have two projects with such similar scope. 


I would like to hear what other members of the SEC think about the overlap between these two PARs-any opinions out there?




--Paul Nikoich