IEEE C802.16m-09/2672r1
Project
IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16>
Title
UMAC HO Ad-Hoc Report
Date
Submitted
2009-11-18
Source(s)
Mary Chion
Kelvin Chou
Re:
Letter Ballot #30a on the Draft Amendment (IEEE P802.16m/D2)
Abstract
UMAC HO Ad-Hoc Report
Purpose
To be discussed and adopted
Notice
Release
Patent
Policy
This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It
represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion.
It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein.
The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution,
and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any
IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion
to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also
acknowledges and accepts that this contribution may be made public by IEEE 802.16.
The contributor is familiar with the IEEE-SA Patent Policy and Procedures:
<http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and
<http://standards.ieee.org/guides/opman/sect6.html#6.3>.
Further information is located at <http://standards.ieee.org/board/pat/pat-material.html> and
<http://standards.ieee.org/board/pat>.
1
IEEE C802.16m-09/2672r1
UMAC HO Ad-Hoc Report
Mary Chion
Kelvin Chou
1. Summary
Resolved Comments
81
Deferred Comments
18
Comment moved to other
5 Femto (267, 282); Security (486);
Group
MC (521, 522); TGM ( 459)
2. Resolved Comments
No.
First
Last
Dis Page Subclause
Recommendation by ad-hoc group
255 Jaehyuk
Jang
46
15.231 Accept-Modified (2361r3)
256 Jaehyuk
Jang
46
15.231 Accept
257 Whai-En
Chen
46
15.231 Accept
258 Nader
Zein
47
260 Xiangying
Yang
47
262 Yang
Liu
1
48
15.2311 Reject: lack of specific remedy
263 Zhaohua
Lu
1
48
15.2311 Reject: lack of specific remedy
265 Herbert
Ruck
48
15.2311 Accept
274 Phillip
Barber
1
49
15.2312 Accept
275 Eunkyung
Kim
1
50
15.2312 Accept
276 I-Kang
Fu
1
50
15.2312 Accept
279 Zhaohua
Lu
1
51
15.2313 Accept
281 Eunkyung
Kim
1
51
15.2313 Accept
284 Eunkyung
Kim
1
53
15.2314 Accept
414 Phillip
Barber
1
120
416 Whai-En
Chen
121
421 Whai-En
Chen
121
Reject: lack of specific remedy
15.231 Accept-Modified (2649r2)
15.26 Reject: lack of specific remedy
15.262 Accept-Modified (2647r2)
15.2611 Reject: proposed text change is already included
in D2
2
IEEE C802.16m-09/2672r1
425 Whai-En
Chen
121
15.2612 Accept
426 Whai-En
Chen
121
15.2612 withdraw
428 Jaehyuk
Jang
Change from Editorial to Technical, and
superceded by A0416
430 Kiseon
Ryu
431 Ming-Hung
1
123
15.262 Accept
Tao
123
15.262 Accept
433 Kiseon
Ryu
123
15.262 Accept
434 Kiseon
Ryu
123
15.262 Accepted-modified
When performing measurements, the AMS shall
use the averaging parameters defined in DCD the
AAI_SCD message with TLV "Default HO RSSI
and CINR averaging parameters", Type 121 as
defined in section 11.4.1 and Table 574'
435 Joseph
Schumacher
1
124
437 Joseph
Schumacher
1
124
15.262 Accept
15.2632 Accepted-modified
The handover initiation may originate either at
Either the AMS or the serving ABS may initiated
handover. The serving ABS shall define the trigger
conditions based on which the AMS initiates a
handover. If Serving ABS defines trigger
conditions for initiating handover, the AMS shall
initiate a handover when one of the trigger
conditions is met.
438 Whai-En
Chen
124
15.2632 Accepted-modifided (2645r3)
439 Whai-En
Chen
125
15.2631 Accept
441 Xiangying
Yang
125
15.2633 Accepted-modifed
Information regarding AMS identity (e.g.STID) or
and security context (e.g., nonce), may should be
pre-updated during HO preparation. Any
mismatched system information between AMS
and the target ABS, if detected, may be provided
to the AMS by the Serving ABS during HO
preparation. If pre-allocated at target ABS, the
serving ABS shall include an STID to be used at
target ABS in the AAI_HO-CMD message. The
pre-allocated STID shall be used in the target ABS
by the AMS to communicate with the target ABS.
The FIDs which are used to distinguish different
3
IEEE C802.16m-09/2672r1
connections are not updated during the handover
procedure. Rejection of each service flow shall
also be indicated in the AAI_HO-CMD message.
442 Phillip
Barber
443 Jaehyuk
Jang
444 Joseph
Schumacher
446 Zhaohua
Lu
448 Jaehyuk
Jang
1
125
15.2633 Reject: EBB HO is useful
125
15.2633 Accept
1
125
15.2633 Superceded by A0254
1
126
15.2634 Accept
126
15.2634 Accepted modified
If all the target ABSs that are included in the
AAI_HO-CMD message are unreachable, and if
the AMS has a preferred target ABS not included
in the AAI_HO-CMD message, the AMS informs
the serving ABS of its preferred target ABS by
sending AAI_HO-IND message with code 2 0b01
before the expiration of Disconnect Time, and the
AMS performs network re-entry at the new target
ABS as indicated in the AAI_HO-IND message.
The AMS shall also indicate the BSID of its old
serving ABS and previous used STID to the new
target ABS during network entry at the new target
ABS. If the AMS has no preferred target ABS, it
may perform HO cancellation as described in
section 15.2.6.3.6.
449 Inuk
Jung
126
15.2634 withdraw
450 Jaehyuk
Jang
126
15.2634 withdraw
451 Inuk
Jung
126
15.2634 Reject (strawpoll: 1yes, 6no)(the remedy is not
1
appropriate. If this case happens, coverage loss
detection behavior should be applied.)
452 Yih Guang
Jan
453 Xiangying
Yang
127
15.26351 superceded by A0454
Change from Editorial to Technical, and
superceded by A0454
454 Jaehyuk
Jang
1
127
15.26351 Accepted modified by 2360r2
455 Zhaohua
Lu
1
127
15.26351 superceded by 454
4
IEEE C802.16m-09/2672r1
456 Ron
Murias
Change from Editorial to Technical, and
superceded by A0454
457 Youngsoo
Yuk
1
127
15.26351 Reject (3yes 7no) (RNG-ACK can also be omitted
when the status is 'success'. If BS always sends
RNG-ACK in the next DL frame, RNG-ACK shall
be sent in any case, and this wastes bandwidth.)
458 Jaesun
Cha
128
15.26351 Accepted-modified by Jaehyuk's reply comment:
[Add the following text at the end of the 3rd
paragraph on page 128]
If the 'CDMA_RNG_FLAG' is set to 0, the target
ABS shall allocate the UL resource for
AAI_RNG-REQ after the Action Time. The
Ranging_Initiation_Deadline - Action Time
provides a bounded interval during which the MS
may expect UL resource allocation for
AAI_RNG-REQ.
459 Inuk
Jung
128
15.26351 Already resolved in TGm B
460 Kelvin
Chou
128
15.26351 Accept
461 Jaesun
Cha
128
15.26352 Reject (commenter self rejected)
462 Kelvin
Chou
1
128
15.263 Reject (commenter self rejected)
464 Stavros
Tzavidas
1
131
466 Jaehyuk
Jang
1
131
1
15.26352 Accept
15.2636 Accepted Modified
An AMS requests HO cancellation to the serving
ABS by sending the AAI_HO-IND with HO Event
Code 0b11 (HO cancel) with its current
CMAC_KEY_COUNT after Disconnect Time.
467 Ron
Murias
1
131
15.2637 Reject (lack of specific text)
468 Kelvin
Chou
1
132 15.264111 Accept
469 Fang-Ching
Ren
1
132 15.264111 Superceded by A0468
Barber
1
132 15.264111 Reject (definition of 'WirelessMAN-OFDMA TDD
(Frank)
471 Phillip
Release 1’ is not clear)
472 Xiangying
Yang
133 15.264121 Reject (6yes, 8no) (The AMS shall be able to
initiate the Zone Switch. Otherwise, the AMS is
always forced to perform zone switch, even if data
path is establised in LZone.
)
5
IEEE C802.16m-09/2672r1
473 Inuk
Jung
133 15.264121 Accept
474 Yang
Liu
1
133 15.264121 Accept
477 Kelvin
Chou
1
133 15.264121 Accepted modified (2307r1)
478 Yang
Liu
1
133 15.264121 superceded by A0477
480 Yih Guang
Jan
134 15.264121 superceded by A0477
481 Jaehyuk
Jang
134 15.264121 Accepted modified (2358r3)
482 Kiseon
Ryu
Change from Editorial to Technical, and
superceded by A0477
484 Kiseon
Ryu
1
134 15.264121 Reject (6yes, 7no) (action time is needed to
control the ZS procedure)
485 Kiseon
Ryu
135 15.264121 Accept
487 Kiseon
Ryu
135 15.264121 Accept-modified
If UL grant is provided in the MZone at
Zone_Switch_Action_time, the AMS uses the
grant to send AAI_RNG-REQ message with
Ranging Purpose Indication set to "Zone Switch".
Otherwise, tThe AMS shall request UL bandwidth
to send the AAI_RNG-REQ by using the
pre-assigned STID if it is provided while in LZone.
Upon reception of such BR, the ABS provides a
UL grant for AMS to send AAI_RNG-REQ
message.
489 Yang
Liu
1
135 15.264122 Accept
490 Xiangying
Yang
491 Ron
Murias
1
135 15.264131 Reject (lack of specific text)
492 Zhaohua
Lu
1
135
15.26414 Accept
493 Zhaohua
Lu
1
135
15.26414 Accept
494 Zhaohua
Lu
1
136
15.2642 Accept
495 Ron
Murias
1
137 15.264231 Reject (lack of specific text)
496 Yang
Liu
1
137
500 Herbert
Ruck
501 Ron
Murias
135 15.264122 Reject (7yes, 8no) (direct HO is needed)
15.2642 Accepted Modified (2397r2)
140 15.2652123 Accept
1
141
15.26522 Accept-Modified
The WirelessMAN-OFDMA Advanced system
provides mechanisms for conducting inter-RAT
measurements and reporting; they are FFS.
Further, it may forward handover related
messages with other access technologies such as
6
IEEE C802.16m-09/2672r1
IEEE 802.11, 3GPP and 3GPP2. The specifics of
these handover messages may be defined
elsewhere, e.g. IEEE 802.21.'
695 Stavros
Tzavidas
1
221
15.21531 Reject (7yes, 7no) (Regardless of cell bar, Initial
backoff window can be changed in SP3. )
7
IEEE C802.16m-09/2672r1
3. Deferred Comments
No.
First
Last
Dis
Page
Subclause
Recommendation by ad-hoc group
254
Stavros
Tzavidas
1
46
15.231 Deferred (Stavros)
259
Inuk
Jung
1
47
15.231 Deferred
264
Xiangying
Yang
48
15.2311 Deferred (XiangYing) AAI_NBR-ADV
266
Jaesun
Cha
48
15.2311 Deferred (XiangYing)
268
Xiangying
Yang
49
15.2311 Deferred (XiangYing)
269
Jaehyuk
Jang
49
15.2311 Deferred (XiangYing)
270
Jaejeong
Shim
49
15.2311 Deferred (XiangYing)
15.2611 Deferred (XiangYing)
1
(Brian)
422
Zhaohua
Lu
1
121
271
Soojung
Jung
1
49
15.2312 Deferred (Harmonized contribution
2356r2 & 2357r2 needed to be
reviewed)
272
Jaehyuk
Jang
1
49
15.2312 superceded by A0271
283
Jaehyuk
Jang
1
53
15.2314 superceded by A0271
277
Kelvin
Chou
1
51
15.2313 Deferred (Kelvin)
278
Zhaohua
Lu
1
51
15.2313 Deferred (Kelvin)
420
Jaehyuk
Jang
121
15.2611 Deferred (Jack)
423
Inuk
Jung
121
15.2612 Deferred (Inuk)
427
I-Kang
Fu
1
121
15.2612 Deferred (Kelvin)
470
Phillip
Barber
1
132
15.264111 Deferred
497
Zhaohua
Lu
1
137
15.265 Deferred
8