Support for Reconfigurations of ABS in IEEE 802.16m Document Number: IEEE C80216m-09_2598r1 Date Submitted: 2009-11-12 Source: Ying Li, Zhouyue Pi, Baowei.

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Presentation transcript:

Support for Reconfigurations of ABS in IEEE m Document Number: IEEE C80216m-09_2598r1 Date Submitted: Source: Ying Li, Zhouyue Pi, Baowei Ji Phone: Anshuman Nigam, Jaehyuk Jang, Jung Je Son Samsung Electronics Venue:IEEE Session #64 Base Contributions: Re: Contribution in support of a comment on LB30a Purpose: Discussion and Approval Notice: This document does not represent the agreed views of the IEEE 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. Release: 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 Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and. Further information is located at and.

BS reconfiguration SON: support reconfiguration For some configuration, the reconfiguration may cause call-drops, or service discontinuity. AAI_SON_ADV message in current D2 is not clear enough. AAI_SON_ADV message needs to be elaborated more. Some operations related to femto reliability need to be elaborated.

Proposed text (1/2) In HO-CMD, add fields – Target ABS FA index: the FA index of the target BS – Target ABS Cell ID: the A-preamble index of the target BS In Support of Reconfigurations and Restart, add new text in blue – SON may trigger ABS(s) to reconfigure and/or restart. The ABS may announce the upcoming action of its reconfiguration and/or restart in advance using AAI_SON_ADV message. – If ABS reconfigures FA, it may also need to reconfigure Cell ID. Before ABS changes its FA, it may send AAI_SON-ADV message which including the new FA and its effective time to AMS. AMS may request to HO to the serving ABS itself at the new FA. ABS may command MS in its coverage to handover to the ABS itself at the new FA. The MAC context (such as station ID, connection ID, etc.) keeps the same, for MS to perform simplified network re-entry. Base station should inform MS the new FA and the new cell ID if applicable (as the target ABS FA, target ABS cell ID) in AAI_HO-CMD, and set the action time in AAI_HO- CMD to be no sooner than the effective time of new FA.

Proposed text (2/2) AAI_SON-ADV message This message is used by an ABS to broadcast relevant SON information for action types as defined below. [delete text in red] Action types 1 and 2 can be sent by any ABS. Action types 3 and 4 are specific to Femto ABS only. This message contains the following parameters: Action type – "1st value: ABS Reconfiguration – "2nd value: ABS Restart – "3rd value: ABS Scanning – "4th value: ABS Reliability If(Action type == 1st, 2nd, or 3rd value) – Unavailability start time (UST) – Unavailable Time Interval (UTI) of the ABS If(Action type == 4th value) – Reason "0b0: Power down change to: 0b00: power down "0b1: Power reduction change to: 0b01: power reduction Add: 0b10: FA change Add: 0b11: reserved – If(Reason == 0b01), dB value of Tx power reduction – Add: if (reason==0b10), new FA index; new cell ID (if applicable) – Expected down time change to: expected resource adjustment time – Expected uptime – Recommended BSID list Note: This can be for the MS who may want to choose BS to HO.