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stds-802-16: TG1 COMMENT:

To: stds-802-16@ieee.org
Subject: stds-802-16: TG1 COMMENT:
From: moshe ran <mran@telescicom.co.il>
Date: Sat, 02 Sep 2000 21:09:10 +0200
Reply-To: mran@telescicom.co.il
Sender: owner-stds-802-16@ieee.org

Subject: stds-802-16: TG1 COMMENT:
Date: Fri, 1 Sep 2000 17:01:23 +0300
From: mran@telescicom.com
To: stds-802-16@ieee.org

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
268


[Starting Line #]
16
[(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]
Change the sentence " The continuous downstream mode has a higher coding

due to the presence of a..."
to "The continuous downstream mode is based on a..."



[Reason for Edit]
The statement “The continuous downstream mode has a higher coding gain
due
to ….”   is not true when using the optional BTC.

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
271

[Starting Line #]
43
[(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]
Insertion of a word modulation.

[Reason for Edit]
the title of the Fig. should be “N physical slots, 4*N modulation
symbols”    [ instead of : N physical slots, 4*N symbols ]

.

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
284

[Starting Line #]
40

[(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]
Insertion of a missing sentence
" ...last codeword, based upon  the allowable shortened codewords for
the particular code type.

[Reason for Edit]
Missing (typo) sentence

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
282

[Starting Line #]
8
[(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]
Change N to K

[Reason for Edit]
Consistency

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
284

[Starting Line #]
40

[(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]
  add a field description for interleaving options-
                      1 - non
                      2- block
                      3- reserved


[Reason for Edit]
BTC has ineherent interleaving capability. It is simply stated in
terms of how we write the data into the array and how it is read out.




[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
285

[Starting Line #]
30

[(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]
Change P to K

[Reason for Edit]
Inconsistency. Packet size are the information block size and thus
should be denoted by K. The same remark applies all over the document.
[ e.g., p.285 line:43, p.285 line:53, p.286 line:17]



[Reason for Edit]
Consistency. In this page it seems that what is ment by MAC blocks
should be denoted as the dimension of the data. i.e., K.

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
287

[Starting Line #]
31

[(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]
Deletion of extra  sequence of "p"

[Reason for Edit]
When shortening a line or a column the parity checks are reset to zero.

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
286

[Starting Line #]
18

[(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]
Change the sentence , " MSB first" into "LSB first".
denotes


[Reason for Edit]
Using the RS options and RS + parity the first
 symbol out  should be the LSB (i.e., the information part first
then the parity check part)



[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
 287

[Starting Line #]
18

[(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]
 Change g(x) to g1(x) in line 18
 Change g(x) to g2(x) in line 23
 Insertion of a paragraph: in line 56.
 "The preferred encoder will have the same code for the columns and for
the rows.
  Thus the constituent codes are the same, that is, (n1,k1) = (n2,k2).
This symmetric case will reduce the decoder complexity."


[Reason for Edit]
The generator polynomial for the columns code (n1,k1)
is not necessarily identical to the generator polynomial of rows code
(n2,k2), as illustrated in the Fig. in lines 31-50.However, the
symmetric case is
preferred to reduce decoder complexity.



[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]


[Starting Line #]


[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc., (TBD) for a comment on a section marked "TBD"]


[Detailed Description of Proposed Insertion, Deletion, Change]


[Reason for Edit]

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
288

[Starting Line #]
24

[(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]
 Change the code rate from 73 into 0.673
 Change the code rate from 17 into 0.717
 Change the code rate from 90 into 0.790
 Change the code rate from 08 into 0.608
[Reason for Edit]
These are the correct figures for the code rates.

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]
 292

[Starting Line #]
 8

[(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]
 Change Table 75 16-QAM constelltion and Table 76 to be consistent with
4,64QAM.
 The new table should be constructed according to the following rules:
 -  +1 is 00, -1 is 10, +3 is 01 and -3 is 11
 -  The pairing of the I and Q should be I1,Q1,I2,Q2

[Reason for Edit]
Consistency. The final results is that in all the constellation the
points
for I>0, Q>0 start with 00
for I<0, Q>0 start with 10
for I<0, Q<0 start with 11
for I>0, Q<0 start with 01

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

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[Detailed Description of Proposed Insertion, Deletion, Change]


[Reason for Edit]


[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]


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[Detailed Description of Proposed Insertion, Deletion, Change]


[Reason for Edit]

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

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[Detailed Description of Proposed Insertion, Deletion, Change]


[Reason for Edit]


[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]


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[(T)echnical for Content-Related Material; (E)ditorial for typos,
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[Detailed Description of Proposed Insertion, Deletion, Change]


[Reason for Edit]


[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]


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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"]


[Detailed Description of Proposed Insertion, Deletion, Change]


[Reason for Edit]

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]


[Starting Line #]


[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc., (TBD) for a comment on a section marked "TBD"]


[Detailed Description of Proposed Insertion, Deletion, Change]


[Reason for Edit]


[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]


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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"]


[Detailed Description of Proposed Insertion, Deletion, Change]


[Reason for Edit]

[Submitter's Last Name]
Ran

[Submitter's First Name]
Moshe

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

[Starting Page #]


[Starting Line #]


[(T)echnical for Content-Related Material; (E)ditorial for typos,
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[Detailed Description of Proposed Insertion, Deletion, Change]


[Reason for Edit]
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