stds-802-16: TG1 COMMENT:

[David Trinkwon <trinkwon@compuserve.com>]

Brian

These are my TG1 comments that went astray in the reflector somewhere. They are 
primarily viewed from a TG3 perspective. Please work with Roger, Jim, Jay and 
Carl to see how they can be included within this week's TG1 discussion - also 
bearing in mind that I will be in the TG3 sessions and would need to know when 
these are being reviewed by TG1 in order to be there. Please confirm that you 
received the comments this time.

David Trinkwon
e-mail : trinkwon@compuserve.com
Telephone :  UK  (+44) (0) 7802 538315   USA   (+1) 972 345 5226
Fax :                UK (+44) (0) 20 7681 1695   USA   (+1) 602 532 7013

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From: 	David Trinkwon [SMTP:trinkwon@compuserve.com]
Sent: 	Friday, September 01, 2000 17:23
To: 	stds-802-16@ieee.org
Subject: 	stds-802-16: TG1 COMMENT:



[Submitter's Last Name]
Trinkwon

[Submitter's First Name]
David

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[Detailed Description of Proposed Insertion, Deletion, Change]
Add "(10 - 66GHz)" to the document title

[Reason for Edit]
To differentiate from TG3 standard (when available)



[Submitter's Last Name]
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[Submitter's First Name]
David

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[Detailed Description of Proposed Insertion, Deletion, Change]
Add "Definition of Terms" sub-section, either under Chapter 1 or with / after 
Chapter 4

[Reason for Edit]
Completeness. See similar section in TG3 draft FRD.



[Submitter's Last Name]
Trinkwon

[Submitter's First Name]
David

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[Detailed Description of Proposed Insertion, Deletion, Change]
Change "Bandwidth", "Bandwidth Request" and "BR" to "Capacity", "throughput", 
"data rate" or similar more appropriate term, throughout the document.

[Reason for Edit]
Bandwidth is defined in Hertz and refers to a range of frequencies. Capacity 
can be increased / reduced by several techniques other than just bandwidth 
manipulation. Although the wireline industry has effectively hijacked the term 
bandwidth to mean throughput in bits / sec, a radio standard should be more 
careful / precise.  Any change to a standard term would need to be agreed with 
ANSI, ISO/IEC and ITU.



[Submitter's Last Name]
Trinkwon

[Submitter's First Name]
David

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[Detailed Description of Proposed Insertion, Deletion, Change]
Original text: "2.6 Framing and Scheduling Intervals"
Change: Add after line 39 the text "The MAC functions described in this section 
is
applicable only to the TG1 PHY proposals described later in this document."


[Reason for Edit]
 It is expected that TG3 will consider PHY options that are very different
from those of TG1. It is vitally important that we separate those parts of the 
MAC
that are tied to the TG1 PHY from those parts that are more generally 
applicable.





[Submitter's Last Name]
Trinkwon

[Submitter's First Name]
David

[Membership Status: (M)ember; (O)bserver; (N)either]
M

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[Detailed Description of Proposed Insertion, Deletion, Change]
Original text: "scheduling intervals are chosen by the MAC to optimize system
performance."
Change: Change the period to comma and add a clause ", which can be up to 4 
ms."


[Reason for Edit]
For clarification. The change is consistent with Section 2.6.5, which
recommends US-MAP be transmitted 250 times a second.



[Submitter's Last Name]
Trinkwon

[Submitter's First Name]
David

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[Detailed Description of Proposed Insertion, Deletion, Change]
Original text = Figure 50.
Change: Modify Figure 50 to show the Tx/Rx gap.


[Reason for Edit]
It is an error not to show the Tx/Rx gap in Figure 50.



[Submitter's Last Name]
Trinkwon

[Submitter's First Name]
David

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M

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[Detailed Description of Proposed Insertion, Deletion, Change]
Original text: "2.6.6.3 Upstream Interval Definition"
Change: Change heading to "Upstream Channel Definition"


[Reason for Edit]
Channel is more general than interval. For example, in an OFDM system,
the registration and access may be on different frequency channels rather than
different time intervals in the same frequency channel. Again, this is to 
benefit
TG3 which is expected to study other PHY options.

David Trinkwon
e-mail : trinkwon@compuserve.com
Telephone :  UK  (+44) (0) 7802 538315   USA   (+1) 972 345 5226
Fax :                UK (+44) (0) 20 7681 1695   USA   (+1) 602 532 7013