stds-802-16-tg4: TG4 PHY STRAWMAN COMMENT:
[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
4
[Section #]
3.1.1.
[Starting line in Section #]
3
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert
"This allows for a total of 48 data sub-carriers, 4 pilot carriers and
1 DC carrier, for a total of 53 carriers. The other 11 carriers (-32 to
-27 and 27 to 31) serve as guard-band"
[Reason for Edit]
For clarification
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
4
[Section #]
3.1.2.
[Starting line in Section #]
4
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace "-103 and below, as well as 104 and above" with "-128 to -103
and 103 to 127"
[Reason for Edit]
Clarification and correction
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
5
[Section #]
3.1.2.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T/E
[Detailed Description of Proposed Insertion, Deletion, Change]
Sentence must be clarified
[Reason for Edit]
Meaning not clear (I don't exactly understand what is ment)
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
11
[Section #]
3.3.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace section with:
"In the optional mesh mode, slots for several PHY maps are allocated and
the frame structure is built from node transmissions. The cell radius is
dependent on the Transition GAP (TG), which is inserted before every and
after the last PHY map. Between data-transmissions of different nodes, no
delay need to be inserted. Random access uses the same method as the PMP
mode. The number of PHY maps in the mesh mode shall be a network management
variable."
map"
Replace every "control packet" or "control slot" with "PHY map"
[Reason for Edit]
Clarification
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
11
[Section #]
3.3.1.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Illustrative picture to be included defining the burst structure for
the various types.
[Reason for Edit]
Necessary for avoiding errors/discrepancies/misunderstandings
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
11
[Section #]
3.3.1.
[Starting line in Section #]
23
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
In section for mesh burst, delete all "downlink"
[Reason for Edit]
Mesh doesn't distinguish between up- and downlink, every link is
just a link.
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
12
[Section #]
3.3.2.1.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace paragraph with:
"The PHY map must include the knowledge of the power used in the
PHY map burst transmission (TxP_PHYmap). The power used for transmitting
the network entry burst is thus TxP_NetworkEntry = TxP_PHYmap -
RSSI_max + Rx_sensitivity + M, in which RSSI_max is the maximum
signal level received from the basestation and Rx_sensitivity is the
receiver sensitivity of the modulation to be used (BPSK, rate TBD)
and M is a margin factor, or the maximum available which one is less.
In the first attempt M is TBD dB (proposal 3dB) and if the attempt
fails, the output power may be increased by 3dB per retry.
For the mesh mode the procedure is similar with the exception that
the used output power is chosen according to the furthest neigbor
(from path loss perspective) to be reached."
[Reason for Edit]
An alternative more accurete method to define the transmit power.
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
14
[Section #]
3.3.2.3.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert new subheader 3.3.2.3.1 OFDM and replace 3.3.3. with
3.3.2.3.2 Optional OFDMA. 3.3.3.1 and 3.3.3.2 becomes 3.3.2.3.2.1
and 3.3.2.3.2.2 respectively
[Reason for Edit]
Structural
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
15
[Section #]
4.1.1.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Alternative method to initialize the randomizer:
The randomizer can be intialized with the frame number or a
function of the frame number (fraction, punctured or something more
intelligent). There must be a frame number entry in the PHY map and
this would be placed next to the preamble (unrandomized). Everything
after the frame number would then be randomized.
This is actually necessary only for network entry since once a device
is part of the network it will automatically have the knowledge of the
frame number (counter running). Thus normal bursts wouldn't need the
frame number knowledge but the seed would be known at both ends.
[Reason for Edit]
Fixed intialization makes randomizer useless. Sacrificing bits for
randomizer initialization in every burst doesn't make sense when there
is another method to use mandatory changing fields in the burst for
the same function.
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
35
[Section #]
5.1.
[Starting line in Section #]
Figure 30
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace "QPSK" with "BPSK" in first picture
[Reason for Edit]
Editorial
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
35
[Section #]
5.1
[Starting line in Section #]
Figure 30
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace proposed constellation diagrams with the ones defined
for 802.11a
[Reason for Edit]
802.16b is based on enhancing 802.11a/HiperLAN II to fit FBWA
needs and there is no justification for changing the constellation.
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
38
[Section #]
6.2.2.
[Starting line in Section #]
Table 16
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T/E
[Detailed Description of Proposed Insertion, Deletion, Change]
Change U-NII-middle channelization on 20 MHz to be 108, 116, 124
and 132 mandatory
Change U-NII-upper channelization on 20 MHz, channel "198" to "298"
[Reason for Edit]
Consistency with 10 MHz raster (another alternative is to change
the 10 and 5 Mhz rasters)
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
39
[Section #]
6.3.3.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace "40 dB minimum" with "45 dB" and "2 dB" with "3 dB"
[Reason for Edit]
45 dB dynamic range is feasible to accomodate the considered link
ranges.
3 dB resolution is enough taking into account that better than -+1 dB
accuracy in RSSI measurements is hard to obtain.
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
41
[Section #]
6.4.6.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete section
[Reason for Edit]
The receiver sensitivity, dynamic range and RSSI accuracy sets the
AGC requirements and thus this becomes an implementation issue not
to be defined in the standard.
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
42
[Section #]
6.6.3.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete the section
[Reason for Edit]
There is no reason for such a requirement even if it is just a
recommended practice. The only practical reason for this kind
of item is support for Type Approval or similar activities but
in the current state 802.16b doesn't have to consider these.
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
42
[Section #]
6.6.4.
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete the section
[Reason for Edit]
It is not forseen that an Indoor-Outdoor unit split will be
obvious to each manufacturer and thus there is no value in
recommending such an interface.
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
47
[Section #]
9
[Starting line in Section #]
1
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert a note:
"Note: Two additional ranging and access schemes have been proposed
as additional to the ones defined in 802.16 MAC"
[Reason for Edit]
This is not a final section and there is no decision whether any
subcarrier-polling schemes will be included in the standard.
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
53
[Section #]
12
[Starting line in Section #]
0
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
The MAC-PHY interface shall be specified
[Reason for Edit]
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
Whole document
[Section #]
All applicable sections
[Starting line in Section #]
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace all "down-stream" with "down-link", all "up-stream" with "up-
link", all "DS" with "DL" and all "US" with "UL"
[Reason for Edit]
Consistency
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[Submitter's Last Name]
Arrakoski
[Submitter's First Name]
Jori
[Starting Page #]
General
[Section #]
All sections
[Starting line in Section #]
[(T)echnical for Content-Related Material; (E)ditorial for typos,
grammar, etc.]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Include a list of abbreviations
[Reason for Edit]
Readability