-----Original Message-----
From: Roger B. Marks [SMTP:r.b.marks@ieee.org]
Sent: Tuesday, August 29, 2000 9:55 PM
To: ken@ensemblecom.com
Subject: Re: BOUNCE stds-802-16@majordomo.ieee.org:
Ken:
I formatted your comments. If this is what you meant, please re-post it.
Roger
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[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
18
[Starting Line #]
17
[(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]
Delete last sentence of the paragraph.
[Reason for Edit]
The stated action never happens in any of the described primitive and
message sequences and never should happen.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
18
[Starting Line #]
17
[(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]
Delete last sentence of the paragraph.
[Reason for Edit]
The stated action never happens in any of the described primitive and
message sequences and never should happen.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
30
[Starting Line #]
29 - approximately (the line number don't line up)
[(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]
The second sentence of the paragraph should be changed to:
"The Basic Connection IDs, assigned to a CPE at registration, are
used by the BS MAC and the CPE MAC to exchange MAC control messages.
The secondary management connection IDs, also assigned to a CPE at
registration, are used by the BS MAC and the CPE MAC to exchange
provisioning and higher level management information."
[Reason for Edit]
As the first sentence and other parts of the document point out, we
have two control connections to allow differentiation of QoS between
MAC Control and NMS type traffic.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
40
[Starting Line #]
19
[(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 sentence to: "The minimum number of CIDs a Modem can support is 3."
[Reason for Edit]
A modem is required to support 1) a basic CID, 2) a secondary
management CID, 3) at least 1 user data CID.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
47
[Starting Line #]
34
[(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 "CRC" to "MAC PDU Payload" and delete associated footnote.
[Reason for Edit]
This was an Ethernet based concept that went away with the merge.
The MAC layer doesn't expect higher layers to have a CRC. If the
higher layer protocol does include a CRC, it's just data to the MAC.
MAC level error detection uses the HCS and the TC layer CRC.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
48
[Starting Line #]
32
[(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]
In line 32, change "CRC" to "MAC PDU Payload" and delete associated footnote.
Do the same in line 54.
In line 35, the value 1522 should be 1600, to allow for L2TP/PPP tunneling.
[Reason for Edit]
This was an Ethernet based concept that went away with the merge.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
49
[Starting Line #]
12
[(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]
In line 12, change "CRC" to "MAC PDU Payload" and delete associated
footnote on line 64.
[Reason for Edit]
This was an Ethernet based concept that went away with the merge.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
49
[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]
delete the 2 words "and admitted"
[Reason for Edit]
The timeout in this paragraph should only govern active QoS
parameters. The timeout in paragraph 2.3.5.5.9 on line 44 of page 49
governs admitted QoS parameters.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
50
[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]
Replace this section with one that properly describes the concept of
Maximum Burst Length:
Change the section title to:
"2.3.5.6.1 Maximum Burst Duration"
Change lines 20-23 to:
"The value of this parameter specifies the maximum burst duration (in
bytes) which a Service Flow is allowed."
Delete line 27-28 (line numbers don't line up correctly)
Delete Note on lines 36-38.
[Reason for Edit]
This is a DOCSIS concept that was modified by the merge.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
51
[Starting Line #]
35
[(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]
Bit #2 and Bit #3 should be changed to reserved.
[Reason for Edit]
Request/Data opportunities went away. See Table 11 on page 83.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
51
[Starting Line #]
62
[(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]
The default behavior must be changed to one which works with the
current system. I.E., dropping versus fragmenting.
[Reason for Edit]
There are no longer "Primary Service Flows". Additionally, the
behavior described can violate the concept of sending data in order.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
52
[Starting Line #]
42
[(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 second sentence to "The grant size includes the entire MAC PDU.
[Reason for Edit]
"Frame Control byte" and "MAC frame", as used here, are concepts that
went away with the merge.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
57
[Starting Line #]
51
[(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]
Delete the note on lines 51-52.
[Reason for Edit]
This concept goes away with the merge.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
71
[Starting Line #]
11
[(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]
The IUC concept needs to be broken into uplink IUC (UIUC) and
downlink IUC (DIUC).
Also page 75, line 27; page 78, line 43; page 79 line 15; page 80 line 31.
[Reason for Edit]
With the expanded PHY parameters (FEC) the UL and DL bursts can be
very different and should have different IUCs. Also, some of the UL
IUCs don't make sense for the DL (request, etc.).
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
79
[Starting Line #]
37
[(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]
There should be a table of DL IUCs like table 11.
[Reason for Edit]
Clarity, missing information.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
78
[Starting Line #]
7
[(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]
The reserved bits between the PHY Type and the Hyperframe number
should be delineated with a dark line separating fields.
[Reason for Edit]
The Hyperframe field is only 15 bits long.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
79
[Starting Line #]
15
[(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]
The connection identifier in the downlink TDMA map can be eliminated,
allowing the DL map size to be reduced.
[Reason for Edit]
Saves bandwidth. The terminals know, via unsolicited ranging
responses, which burst types to listen to. Terminals can listen to
all bursts which match their capabilities (including exclusion due to
half-duplex operation) just as they would in TDM mode. This decrease
the DL map size and decreases the differences between TDM and TDMA
operation.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
80
[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]
A "cell size", described in PS or minislots, should be broadcast to
the CPEs either here in the UL MAP or in the UCD message.
[Reason for Edit]
During an uncorrelated rain fade, a CPE might attempt to register on
a BS in a different cell. The extra round trip delay could cause the
CPE to trash the uplink by transmitting beyond the ranging
opportunity. This field would allow the CPE to error check the
cumulative Tx Time Advances it was given to help it determine that it
is beyond the edge of the cell in which it's attempting registration.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
81
[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]
Data Backoff Start and Data Backoff End should be changed to request
Backoff Start and Request Backoff End, respectively. the two words
"data and" should be deleted from line 42 and line 48.
This also affects the Figure on page 80 at line 28.
[Reason for Edit]
The concept of contention based data transfer was eliminated in the merge.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
83
[Starting Line #]
3
[(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]
Need to add a "empty" IUC (different from NULL). This is
particularly true for the DL TDMA map.
[Reason for Edit]In case the BS needs to schedule gaps.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
83
[Starting Line #]
49
[(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]
Ranging request needs a status code parameter.
[Reason for Edit]
CPE needs to be able to inform BS "I'm at max power, I'm at min
power, my Tx advance is larger than the advertised cell size".
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
84
[Starting Line #]
22
[(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]
"IUC Type" should be replaced with "Requested DL Modulation".
Alternatively, the values for this field should not be 1, 2, 3, but
should be the DL IUC requested for optimal performance from the set
advertised in the DCD messages.
This affects line 49 also.
[Reason for Edit]
The modulation is what is being requested if the values are 1, 2, 3.
If an IUC were requested, the values wold be different. This needs
to be consistent.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
84
[Starting Line #]
32
[(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 first sentence to: "A required parameter until the
Temporary CID has been received in the Ranging Response message".
[Reason for Edit]
After the receipt of the Temporary CID, the Temporary CID is a
deterministic indication of which CPE sent the message, eliminating
the need to repeat this field.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
86
[Starting Line #]
27
[(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]
The thresholds need to be better associated with the IUCs. According
to Table 11 on page 83, IUCs 4-9 indicating data grant types 1-6
require thresholds, not IUCs 1-6. Also, Figure 76 on page 155 needs
expanding to allow change via IUC, not just modulation. This concept
needs to be for both uplink and downlink, and should probably be in
the UCD and DCD messages, not the ranging responses.
[Reason for Edit]
Clarity and compatibility of requirements.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
87
[Starting Line #]
1
[(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 first sentence to: "A required parameter when the CID in the
MAC header is the initialization CID".
[Reason for Edit]
Clarification of requirement and efficiency of protocol.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
88
[Starting Line #]
25
[(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]
Thresholds should be present for IUCs 4-9 and DL IUCs and probably
should be moved to UCD and DCD messages.
[Reason for Edit]
Parameters are no longer sufficient given additional flexibility added to PHY.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
92
[Starting Line #]
53
[(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]
The basic CID needs to be returned, too.
[Reason for Edit]
This is where it was supposed to happen, but it got lost in the editing.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
111
[Starting Line #]
53
[(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 word millisecond to microsecond.
[Reason for Edit]
Millisecond accuracy is not sufficient to synchronize the TDD frame
start and the TDD split across a network.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
114
[Starting Line #]
52
[(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]
MAC Version identifier and whether registration is allowed on this
physical channel need to be added to some message, possibly the
UL-MAP message.
[Reason for Edit]
Inconsistency in specification.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
119
[Starting Line #]
11
[(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]
This section should be reworded to discuss Data Grants 1-6 rather
than Short and Long.
[Reason for Edit]
We now have an expanded definition of data grants compared to when
this section was written.