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stds-802-16: TG1 Comments
[Submitter's Last Name]
Klein
[Submitter's First Name]
Jay
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
314
[Starting Line #]
37
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.;
(G)eneral to identify a problem but not a solution; (TBD) for a
comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "<20% of symbol period for 16-QAM" to "<40% of symbol period for
16-QAM"
Change "<10% of symbol period for 64-QAM" to "<20% of symbol period for
64-QAM"
[Reason for Edit]
Current spec too tight (highly depends on the exact curvature of phase
distortion).
[Submitter's Last Name]
Klein
[Submitter's First Name]
Jay
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
314
[Starting Line #]
42
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.;
(G)eneral to identify a problem but not a solution; (TBD) for a
comment on a section marked "TBD"]
G
[Detailed Description of Proposed Insertion, Deletion, Change]
Must increase the "1.0 dB" ptp value
[Reason for Edit]
Current spec too tight (highly depends on the exact curvature of amplitude
distortion). May force unnecessary pre-equalization as channel distortion
will can be greater
[Submitter's Last Name]
Klein
[Submitter's First Name]
Jay
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
314
[Starting Line #]
47
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.;
(G)eneral to identify a problem but not a solution; (TBD) for a
comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Either remove "dynamic range" item or relax (30 dB???)
[Reason for Edit]
The standard is more focused on cost reducing the subscriber device. Base
station performance declarations should be made only on issues relevant to
the subscriber operation. It is assumed that a base station vendor will
design it to deal with issues like receiving more than one carrier at once
etc.
[Submitter's Last Name]
Klein
[Submitter's First Name]
Jay
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
314
[Starting Line #]
50
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.;
(G)eneral to identify a problem but not a solution; (TBD) for a
comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Delete Item (Receiver equivalent noise floor)
[Reason for Edit]
To be replaced by BER performance
[Submitter's Last Name]
Klein
[Submitter's First Name]
Jay
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
314
[Starting Line #]
49
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.;
(G)eneral to identify a problem but not a solution; (TBD) for a
comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert item "BER performance threshold"
Values:
For 1x10^-3: QPSK -89+10*log10(R), 16QAM -81+10*log10(R), 64QAM
-74+10*log10(R)
For 1x10^-6: QPSK -85+10*log10(R), 16QAM -77+10*log10(R), 64QAM
-71+10*log10(R)
Where R is the RF channel bandwidth in MHz
Values are Receiver input signal level (RSL) in dBm
[Reason for Edit]
Missing information in current draft
[Submitter's Last Name]
Klein
[Submitter's First Name]
Jay
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
315
[Starting Line #]
29
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.;
(G)eneral to identify a problem but not a solution; (TBD) for a
comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert item "BER performance threshold"
Values:
For 1x10^-3: QPSK -89+10*log10(R), 16QAM -81+10*log10(R), 64QAM
-74+10*log10(R)
For 1x10^-6: QPSK -85+10*log10(R), 16QAM -77+10*log10(R), 64QAM
-71+10*log10(R)
Where R is the RF channel bandwidth in MHz
Values are Receiver input signal level (RSL) in dBm
[Reason for Edit]
Missing information in current draft
[Submitter's Last Name]
Klein
[Submitter's First Name]
Jay
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
315
[Starting Line #]
42
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.;
(G)eneral to identify a problem but not a solution; (TBD) for a
comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "Adjacent channel interference" to "Adjacent channel interference
threshold degradation at BER=1x10^-6"
Add value: S/I=0 dB for 1 dB degradation, S/I=-4 dB for 3 dB degradation
(assuming similar modulations on adjacent channels) where S/I represents the
signal to interferer ratio
[Reason for Edit]
Missing information in current draft
[Submitter's Last Name]
Klein
[Submitter's First Name]
Jay
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
315
[Starting Line #]
44
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.;
(G)eneral to identify a problem but not a solution; (TBD) for a
comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "Co-channel interference" to "Co-channel interference threshold
degradation at BER=1x10^-6"
Add value: S/I=23 (QPSK),30 (16QAM) and 36 (64QAM) dB for 1 dB degradation,
S/I=19 (QPSK),26.5 (16QAM) and 32.5 (64QAM) dB for 3 dB degradation where
S/I represents the signal to interferer ratio
[Reason for Edit]
Missing information in current draft
[Submitter's Last Name]
Klein
[Submitter's First Name]
Jay
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
317
[Starting Line #]
47
[(T)echnical for Content-Related Material; (E)ditorial for typos, grammar,
etc.;
(G)eneral to identify a problem but not a solution; (TBD) for a
comment on a section marked "TBD"]
T
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "Propagation model" types from "Static" and "Dynamic" to "Type 0",
"Type 1", "Type 2". Models should be imported from
http://www.ieee802.org/16/phy/contrib/802161pc-00_21.pdf (Falconer & Zhang).
Add the following explanation after table:
Type 0 represents a clear Line of Sight scenario. Type 1 and Type 2
represent typical deployment scenarios with weak multi-path components, Type
1 being with better conditions.
[Reason for Edit]
Missing information in current draft. Pay attention that Type 3 is not
imported, as it does not represent a typical scenario.