1. Comments on Idle mode termination (16.2.18.3) IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-10/0663 Date Submitted: 2010-4-30 Source: Shih-Yuan Cheng, Whai-En Chen wechen@niu.edu.tw National Ilan University Shiann-Tsong Sheu, Chih-Cheng Yang stsheu@ce.ncu.edu.tw National Central University Kanchei(Ken) Loa, Yi-Ting Lin, Tsung-Yu Tsai, Youn-Tai Lee, Chun-Yen Hsu, Chiu-Wen Chen loa@iii.org.tw Institute for Information Industry Yang-Han Lee, Yih Guang Jan Tamkang University * http://standards.ieee.org/faqs/affiliationFAQ.html Venue: IEEE Session#67, Bangalore, India. Re: IEEE 802.16-10/0011, “IEEE 802.16 Working Group Letter Ballot#31a”, on P802.16m/D5 Base Contribution: This is base contribution. Purpose: To be discussed and adopted by TGm for 802.16m LB#31a. Notice: 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. 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 802.1 Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and.http://standards.ieee.org/guides/bylaws/sect6-7.html#6http://standards.ieee.org/guides/opman/sect6.html#6.3 Further information is located at and.http://standards.ieee.org/board/pat/pat-material.htmlhttp ://standards.ieee.org/board/pat

2. Introduction In current D5 page 389 line 19 : – If the preferred ABS has Cell Bar bit=1 in its S- SFH, the AMS should re-select other ABS for network re-entry.

3. Motivate – In page 366 line 37 states that If the AMS reads cell_bar=1 in SFH, this which means this cell does not allow access of new AMS and the AMS shall select a different cell to restart network entry procedure. – In page 387 line 17 states that If an idle mode AMS is paged by an ABS whose Cell Bar bit=1, then the AMS shall not perform network re-entry to this ABS. – In page 529 line 28 states that If Cell Bar bit = 1, this cell is not allowed for network entry or re-entry

4. Problem Statement In page 529, the AMS shall not perform network entry or re-entry to the cell when cell bar bit set to 1. Since the cell is not allowed for network entry or re- entry by operator or the ABS is out of service. Therefore, in order to avoid unnecessary HO, network entry or re-entry failure whether the AMS shall not perform HO network entry or re-entry to a cell with Cell Bar bit=1 in its S-SFH.

5. Proposed Text [Modify the following text in section 16.2.18.3 “Idle mode termination”] If the preferred ABS has Cell Bar bit=1 in its S-SFH, the AMS shouldshall re-select other ABS for network re-entry.