RE: stds-80220-requirements: 802.20 Reference Model

["Joanne Wilson" <joanne@arraycomm.com>]

Mariana,

Unfortunately, you were not able to participate in the Requirements
conference call that occurred on Friday, July 19th prior to last week's
802.20 meeting.  The concensus on the call was in favor of the more
general MBWA System Reference Architecture.  While the eventual standard
may contain various sub-layers, there appears to be no benefit to
constraining
a priori future proposals to a specific sub-layering.  The main objective
of the section, in my humble opinion, was to express a requirement for the
802.20 AI to be specified in a well-defined layered MAC/PHY architecture
consistent with the OSI/ISO model and with other 802 systems.  To express
the agreement on the conference call, Mark Klerer and I were assigned
to redraft this section.  We did this on the margins of last week's meeting
and it was sent to the 802.20 requirements CG last Thursday.  I have
attached
that proposal again, which I continue to support.

Best regards,

Joanne

-----Original Message-----
From: owner-stds-80220-requirements@majordomo.ieee.org
[mailto:owner-stds-80220-requirements@majordomo.ieee.org]On Behalf Of
Marianna Goldhammer
Sent: Tuesday, July 29, 2003 2:05 PM
To: Stds-80220-Requirements (E-mail)
Subject: stds-80220-requirements: 802.20 Reference Model



Hi,

I propose to adopt the MBWA-Specific Reference Model and its
 explanation from the attachment, that will replace  5.1.1.

Reasons for that are:

- 802.1 bridging, in Fig. 2,  is actually beyond the standard;
 including it in the standard scope will make the radio behave
 as a Ethernet bridge and will have implications in frame
 headers (look at 802.11 MAC, carrying if I remember well,
 up to four Ethernet addresses in the frame header);

- 802.1 Management, in Fig. 2 is actually insufficient for access
 systems, being suitable only for LAN and WLAN systems;

- Security functions are not shown;

- Management functions and their interaction with
   MAC/PHY/Security is not shown;

- PHY interaction with the radio deployment is not shown.

Marianna

 <<Reference Model.doc>>

      Marianna Goldhammer
       Director - Strategic Technologies

    Alvarion, Ltd.
10 years of wireless expertise

       21 HaBarzel Street
       P.O.Box 13139, Tel Aviv 61131, Israel
       Tel: (972)- 3 -6456241/6262
       Fax: (972) -3 -6456204

      Email: marianna.goldhammer@alvarion.com

       www.alvarion.com

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Reference Model-mk+jcw proposal.doc