[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
stds-802-16: TG1 COMMENTS
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
105
[Starting Line #]
19
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Eliminate the 2 bytes of pad.
Also eliminate the 1 byte of pad in the DSD-RSP of figure 45, page 106.
[Reason for Edit]
There is no requirement for message fields to be 32-bit word aligned just to
make the pictures easier to draw.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
107
[Starting Line #]
52
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "1" to "1 byte"
[Reason for Edit]
typo
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
109
[Starting Line #]
36
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace "Modulation" with "DIUC".
Delete lines 46-57.
[Reason for Edit]
Per previous comments, we change DL burst types, not just modulation.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
110
[Starting Line #]
1
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert the following section (with updated subsection numbers) before
section 2.6.
1 Logical Channels
A logical channel is defined as a logical communication pathway between two
or more parties. The logical channels represent the interface between the
protocol and the radio subsystem. There are three categories of logical
channels: the traffic channels (TCHs) carrying speech or data information,
the control channels (CCHs) carrying signaling messages and the
synchronization channel for physical layer synchronization. The
differentiation between the channel types and user destinations is
determined through MAC header connection IDs (CIDs).
The following two TCHs are defined for IEEE 802.16.1 systems:
1. UTCH - Unicast Traffic Channel;
2. MTCH - Multicast Traffic Channel.
There is one SCH defined for IEEE 802.16.1 systems.
The following four CCHs are defined for IEEE 802.16.1 systems:
1. BCCH - Broadcast Control Channel;
2. UCCH - Unicast Control Channel;
3. RCCH - Ranging Request Channel;
4. BRCCH - Bandwidth Request Contention Channel.
1.1 Traffic CHannels (TCHs)
1.1.1 Unicast Traffic CHannel (UTCH)
The UTCHs are used to carry user information between a SS and the BS in
either the upstream or downstream directions. The length of each UTCH in a
downstream transmission and an upstream transmission is dynamically assigned
by the BS. When the PHY is operating in Mode B, a map of the assignments is
included in the BCCH.
1.1.2 Multicast Traffic CHannel (MTCH)
The MTCHs are used to carry user information between the BS and multiple SSs
in the downstream direction. The length of each MTCH in a downstream
transmission is dynamically assigned by the BS. When the PHY is operating
in Mode B, a map of the assignments is included in the BCCH at the beginning
of the downstream frame. It should be noted that a broadcast traffic
channel is a special case of the MTCH that is addressed to an entire MAC
domain.
1.2 Synchronization Channel (SCH)
The purpose of the SCH is synchronization, and it exists only in the
downlink. It is unique to the PHY mode. For example, for PHY mode B, it
consists of a preamble unique to the start of the downlink frame and appears
at the beginning of every downlink frame. The SCH carries no data
information.
1.3 Control CHannel (CCH)
The CCH shall carry signaling messages.
1.3.1 Broadcast Control CHannel (BCCH)
The BCCH is broadcast in the first slots of each downstream frame when the
PHY is operating in Mode B. The BCCH is broadcast periodically in Mode A of
the PHY. The purpose of this CCH is to carry broadcast MAC messages that
containing information such as physical characteristics of the current
downstream frame. The following MAC messages are transmitted over the BCCH:
1. Downlink Channel Descriptor (DCD) Message;
2. Uplink Channel Descriptor (UCD) Message;
3. Downlink MAP (DL-MAP) Message;
4. Uplink MAP (UL-MAP) Message;
5. Multicast Polling Assignment Request (MCA-REQ) Message.
1.3.2 Unicast Control CHannel (UCCH)
As mentioned above, a UCCH is a CCH that has a single destination. These
logical channels are used for the transport of all MAC messages on the
uplink and certain MAC messages on the downlink. The location of the UCCHs
on the uplink and downlink can be arbitrary. The following lists the MAC
messages that may be transported on a UCCH:
1. Ranging Request (RNG-REQ) Message;
2. Ranging Response (RNG-RSP) Message;
3. Registration Request (REG-REQ) Message;
4. Registration Response (REG-RSP) Message;
5. Registration Acknowledgement (REG-ACK) Message;
6. Privacy Key Management - Request (PKM-REQ) Message;
7. Privacy Key Management - Response (PKM-RSP) Message;
8. Dynamic Service Addition - Request (DSA-REQ) Message;
9. Dynamic Service Addition - Response (DSA-RSP) Message;
10. Dynamic Service Addition - Acknowledgement (DSA-ACK) Message;
11. Dynamic Service Change - Request (DSC-REQ) Message;
12. Dynamic Service Change - Response (DSC-RSP) Message;
13. Dynamic Service Change - Acknowledgement (DSC-ACK) Message;
14. Dynamic Service Deletion - Request (DSD-REQ) Message;
15. Dynamic Service Deletion - Response (DSD-RSP) Message;
16. Multicast Polling Assignment Request (MCA-REQ) Message;
17. Bandwidth Request (BW-REQ) Message (special version of MAC PDU);
18. Downlink Burst Type Change Request (DBTC-REQ) Message;
1.3.3 Ranging Request Contention CHannel (RCCH)
Periodically, a portion of the upstream channel is allocated for
registration request messages on a contention basis. The RCCH allows
unregistered users a portion of the upstream frame to attempt transmission
of registration requests without interfering with ongoing traffic. The
following MAC messages are transmitted over the RCCH:
1. Ranging Request (RNG-REQ)
1.3.4 Bandwidth Request Contention CHannel (BRCCH)
Periodically, a portion of the upstream burst may be allocated for bandwidth
or connection requests. The BRCCH allows registered users a portion of the
upstream to attempt transmission of bandwidth requests without interfering
with ongoing traffic. The following MAC messages are transmitted over the
BRCCH:
1. Bandwidth Request (BW-REQ) Message (special version of MAC PDU)
[Reason for Edit]
This section was an action item to Phil and I and supposed to get
incorporated last time, but didn't.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
112
[Starting Line #]
23
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Eliminate section 2.6.2 by moving its contents to the start of section 2.6.4
on line 54.
Delete the sentence starting towards the end of line 59.
Combine the first sentence of the paragraph starting on line 62 with the one
starting on line 56.
Delete the sentence starting on line 64 through the end of the paragraph (on
the next page).
[Reason for Edit]
Combine redundant sections, eliminate info that should be in section 2.6.3,
and remove redundant info from the combined section.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
112
[Starting Line #]
39
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Change 2.6.3 heading to "PHY Continuous FDD Mode Support".
Eliminate subheading 2.6.3.1.
[Reason for Edit]
cleaner document.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
112
[Starting Line #]
52
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Insert the sentence "A fixed modulation is used with PHY mode A." at the end
of the paragraph.
[Reason for Edit]
Move PHY mode A information from 2.6.4, where it doesn't belong, to 2.6.3,
where it does belong.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
113
[Starting Line #]
4
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "multiplexing (TDM)" to "duplexing (TDD)".
On line 6 change "structurse" to "structure".
Add "and UCD" to end of paragraph at line 12.
[Reason for Edit]
typos and completeness
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
113
[Starting Line #]
18
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "modulation order QPSK" to "robustness order. For modulations this
means"
Add the following sentence at the end of the modified sentence. "If more
than 1 FEC is defined (via DCD messages) for a given modulation, the more
robust FEC/modulation combination appears first."
Replace Figure 51 with the file TDD_DLSubframe.vsd which will be separately
mailed to the editors.
[Reason for Edit]
reflect adaptive bursts, not just modulation
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
114
[Starting Line #]
1
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Replace Figure 52 with the file BurstFDD_DLSubframe.vsd which will be
separately mailed to the editors.
Line 33, insert the sentence "As in the TDD case, the TDM portion of the
downlink is ordered by decreasing robustness."
[Reason for Edit]
Reflect adaptive bursts, not just modulation.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
114
[Starting Line #]
37 (sort of 38)
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "SSs" to "burst types".
At the end of this sentence, add the sentence "the TDMA portion does not
need to be ordered by robustness."
Delete the next sentence, which starts "This data is"
[Reason for Edit]
Make consistent with previous decision to eliminate CIDs from DL Map, and
clarify ordering of TDMA section.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
115
[Starting Line #]
23
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "modulation order QAM-4, followed by QAM-16, followed by QAM-64."
with "in robustness order in the TDM portion."
Swap the order of the last two sentences of the paragraph, changing word
"case" to "portion" and changing "SS specific" to "separately delineated".
[Reason for Edit]
Consistency with previously implemented decisions regarding combining the
two original burst FDD variants and eliminating the CID from the DL Map
entries.
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
115
[Starting Line #]
52
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Eliminate extraneous table header.
[Reason for Edit]
typo
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
115
[Starting Line #]
64
[(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"]
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "individualSSs" to " individual SSs "
[Reason for Edit]
typo
[Submitter's Last Name]
Stanwood
[Submitter's First Name]
Ken
[Membership Status: (M)ember; (O)bserver; (N)either]
M
[Starting Page #]
116
[Starting Line #]
48
[(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"]
E
[Detailed Description of Proposed Insertion, Deletion, Change]
Change "theUCD" to "the UCD".
[Reason for Edit]
typo