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S S ~ ` cf `= ? Qa ? 0 Ԁ d | Ό x Z Ό cf cf \ Ό f R f t X R R R y y 6 R R R Ԁ Ό R R R R R R R R R : ProjectIEEE 802.16 Broadband Wireless Access Working Group < HYPERLINK "http://ieee802.org/16"http://ieee802.org/16>TitleProposed Text of Clarification for Coverage Detection and Recovery (16.2.26)Date Submitted2010-08-18Source(s)Kiseon Ryu
LG Electronics
Yeongmoon Son
Samsung Electronics
Lei Wang
InterDigital Communications
kiseon.ryu@lge.com
HYPERLINK "mailto:ym1004.son@samsung.com" ym1004.son@samsung.com
leiw@billeigean.comRe:Comment on IEEE P802.16m/D7 for Sponsor BallotAbstractThe contribution provides the proposed text of clarification for update of the AAI_SCD message to be included in IEEE 802.16m amendment document.PurposeTo be discussed and adopted by TGm for the 802.16m amendment.NoticeThis 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.ReleaseThe 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 IEEEs name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEEs 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.Patent PolicyThe contributor is familiar with the IEEE-SA Patent Policy and Procedures:
< HYPERLINK "http://standards.ieee.org/guides/bylaws/sect6-7.html#6" http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and < HYPERLINK "http://standards.ieee.org/guides/opman/sect6.html" \l "6.3" http://standards.ieee.org/guides/opman/sect6.html#6.3>.
Further information is located at < HYPERLINK "http://standards.ieee.org/board/pat/pat-material.html" http://standards.ieee.org/board/pat/pat-material.html> and < HYPERLINK "http://standards.ieee.org/board/pat" http://standards.ieee.org/board/pat>.Proposed Text of Clarification for Coverage Detection and Recovery (16.2.26)
Kiseon Ryu
LG Electronics
Yeongmoon Son
Samsung Electronics
Lei Wang
InterDigital Communications
Introduction/Rationale
In this contribution, we propose the remedies to resolve the comments related to coverage loss and detection.
The related comments are #A039, #A096, #A10134, #A10135, #A10137.
References
[1] IEEE C802.16m/D7, Advanced Air Interface (Draft)
[2] IEEE C802.16m-07/0034r2, 802.16m System Requirements
[3] IEEE C802.16m-08/043, Style guide for writing the IEEE 802.16m amendment
Text proposal for inclusion in the 802.16m amendment
Proposed text has been underlined in blue and deleted text has been struck through in red. Existing draft text is shown in black.
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Remedy 1. (#A039, #A10135)
[Change the paragraph in line 1 page 434 as follows:]
Once the serving ABS receives a MAC control message PDU (i.e. bandwidth request) from the AMS that is assumed to handover to a neighbor ABS (i.e. T-ABS), the serving ABS shall initiate the coverage loss detection procedure (i.e. described in 16.2.26.2) by starting active_ABS_timer for the AMS.
Remedy 2. (#A096)
[Modify section 16.2.26.2 on page 434, line 1, as follows]
In case of a HO, if the ABS identifies the AAI_HO_CMD message is successfully sent to the AMS, the ABS shall stop the coverage loss detection procedure (i.e. described in 16.2.26.2) for the AMS at the frame specified by Disconnect Time in the AAI_HO-CMD message.
Remedy 3. (#A10134)
[Modify the sentence in page 433, line 32 as follows]
The ABS shallmay send a unicast AAI_RNG-ACK message with status "success" to the AMS with or without adjustment parameters based on the measurement on the received UL burst from the AMS.
Remedy 4. (#A10137)
[Modify section 16.2.26.3 on page 434, line 31, as follows]
16.2.26.3 Coverage loss recovery procedure
Upon detection of a coverage loss, the AMS scans for a new channel. After achieving PHY synchronization and DL synchronization with the discovered ABS, which could be its previous serving ABS before the coverage loss, the AMS shall perform network reentrywith CRID if the AMS has been getting information about previous Serving ABS (e.g., serving ABS) as indicated below. Otherwise, the AMS shall perform initial network entry .
[Modify texts in page 383 line 48 as follows:]
Systems shall support the applicable procedures for entering and registering a new AMS to the network. When the AMS powers on and it has no context information of any ABS, the AMS shall perform the initial network entry procedure The procedure for initialization of an AMS shall be divided into with the following steps:
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IEEE C802.16m-10/1088
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