stds-802-16: TG1 COMMENT:

[Mike Hamilton <mikeh@winnet-corp.com>]

[Submitter's Last Name]
Hamilton
[Submitter's First Name]
Michael
[Membership Status: (M)ember; (O)bserver; (N)either]
O
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E
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace "bandwidth" with "time"
"The frame is divided into an integer number of physical slots (PS), which
help to partition the time easily.  
The TDD framing is adaptive in that the time allocated to the downstream
versus the upstream can vary."
[Reason for Edit]
Use of the word "bandwidth" is confusing when referring to allocated time
rather than frequency.

[Submitter's Last Name]
Hamilton
[Submitter's First Name]
Michael
[Membership Status: (M)ember; (O)bserver; (N)either]
O
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271
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T
[Detailed Description of Proposed Insertion, Deletion, Change]
Define PS as a period of 4 symbols, not a multiple thereof.

[Reason for Edit]
Elsewhere is seems a PS is assumed to be an "atom" of 4 symbol. 



[Submitter's Last Name]
Hamilton
[Submitter's First Name]
Michael
[Membership Status: (M)ember; (O)bserver; (N)either]
O
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TBD
[Detailed Description of Proposed Insertion, Deletion, Change]
Define if preambles are fixed or variable. If variable, are they programmed
via the MAC layer?

[Reason for Edit]
Important detail.



[Submitter's Last Name]
Hamilton
[Submitter's First Name]
Michael
[Membership Status: (M)ember; (O)bserver; (N)either]
O
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T
[Detailed Description of Proposed Insertion, Deletion, Change]
change 15 bit seed to 16 bit

[Reason for Edit]
From diagram it looks like number of taps is equal to number of delay
registers. 

[Submitter's Last Name]
Hamilton
[Submitter's First Name]
Michael
[Membership Status: (M)ember; (O)bserver; (N)either]
O
[Starting Page #]
297
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[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc., (TBD) for a comment on a section marked "TBD"]
TBD
[Detailed Description of Proposed Insertion, Deletion, Change]
Define burst profiles and method for transfer to CPE

[Reason for Edit]
If burst profile to be transmitted via MAC, mechanism needs to be defined,
or is "USER PROFILE" to be used as in DOCSIS?



[Submitter's Last Name]
Hamilton
[Submitter's First Name]
Michael
[Membership Status: (M)ember; (O)bserver; (N)either]
O
[Starting Page #]
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grammar, etc., (TBD) for a comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Define guard time in units of PS
[Reason for Edit]
PS should be the unit of all time.

[Submitter's Last Name]
Hamilton
[Submitter's First Name]
Michael
[Membership Status: (M)ember; (O)bserver; (N)either]
O
[Starting Page #]
310
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T
[Detailed Description of Proposed Insertion, Deletion, Change]
Change rolloff factor to reflect rest of document.

[Reason for Edit]
Rolloff is called out as 5.

[Submitter's Last Name]
Hamilton
[Submitter's First Name]
Michael
[Membership Status: (M)ember; (O)bserver; (N)either]
O
[Starting Page #]
311
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[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc., (TBD) for a comment on a section marked "TBD"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Table missing column headings

[Reason for Edit]
Table incomplete

[Submitter's Last Name]
Hamilton
[Submitter's First Name]
Michael
[Membership Status: (M)ember; (O)bserver; (N)either]
O
[Starting Page #]
313
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[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc., (TBD) for a comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Allow for twice the jitter on the upstream channel as on the downstream.
 
[Reason for Edit]
Table 81 specifies the BS Tx max peak-to-peak jitter at 0.02 Tsym, 
bu also specifies the same parameter for the CPE; if the CPE is deriving 
its timing reference from the downstream, the Tx symbol jitter in the CPE is
going to be at least as great as the reference plus the results of some
Jitter Transfer Function. 
Also, since the BS and CPE may be operating at different baud rates, this
parameter should ideally 
be specified relative to the Base Station symbol rate.