Re: stds-80220-requirements: Comment on Functional requirements document.
Dave,
I agree with your assessment and I more or less had the same
comment in our previous submission to the group. Here is the
proposed change:
Section 3.1.1
"To aid the discussion in this document and in the 802.20 specifications, a straw man Reference Partitioning of the 802.20 functionality is shown in Figure 1. This reference partitioning model is similar to those used in other 802 groups...."
Proposal: Delete entire text in section.
Replace with the following text which defines the limits of 802.20's responsibilities to define the MAC and PHY layers:
"To facilitate a layered approach, the 802.20 specification shall incorporate a reference partitioning model consisting of the MAC and PHY. This layered approach shall be generally consistent with other IEEE 802 standards and shall remain generally within the scope of other IEEE 802 standards as shown in figures 1 &2."
Delete Figure 1 and insert two new figures consisting of slides 8 & 9
of the slide deck sent by Alan Chickinsky to the requirements group on
Jun 21 2003.
Reason: This section is currently overly detailed and proposes a specific division of capabilities within the MAC and PHY layers that is best addressed in the specification itself. Alan's breakdown and slides are far more instructive in terms of what reference model we should follow.
I have attached Alan's Slides to this email.
Footnote the new figure 1 with: "Source: IEEE Std 802-2001, IEEE Standards for Local and Metropolitan Area Networks: Overview and Architecture, IEEE Std 802 -2001"
Footnote the new figure 2 with: "Source: IEEE Standard for Information technology, Telecommunications and information exchange between systems, Local and metropolitan area networks: Specific requirements Part 2: Logical Link Control, ANSI/IEEE Std 802.2, 1998 Edition, .Introduction to ANSI/IEEE Std 802.2, 1998 Edition"
Mike
On Tue, Jul 15, 2003 at 01:24:03PM -0500, Mcginniss, Dave S [GMG] wrote:
> I have had some comments indicating that section 3.1.1 MBWA-Specific
> Reference Model is to detailed and make the assumption that the MAC and
> PHY should be separate allowing different MAC/PHY to be used in
> combination. It has been discussed that the layers would be so tightly
> coupled that this model is not appropriate. I for one agree with this
> assessment and suggest striking this diagram and reducing
>
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>
> David S. McGinniss
>
> Sprint Broadband Wireless Group
>
> Principal Engineer II
>
> (630) 926-3184
> david.s.mcginniss@mail.sprint.com
>
>
>
>
>
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>
Reference Model.doc