IEEE C802.16m-09/0002 Project IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16> Title Error Recovery for MAC Management Messages Date Submitted 2009-01-05 Source(s) Yair Bourlas, Lei Wang, Erik Colban, ybourlas@nextwave.com Ken Stanwood NextWave Wireless Inc. Sean McBeath, Jin Lei Huawei Technologies smcbeath@huawei.com Sung Kyung Kim ETRI cyrano@etri.re.kr Mo-Han Fong Nortel Networks mhfong@nortel.com Yih-Shen Chen, Kelvin Chou, I-Kang yihshen.chen@mediatek.com kelvin.chou@mediatek.com Fu, Paul Cheng ik.fu@mediatek.com MediaTek Inc. yb.chang@samsung.com Youngbin Chang Samsung Electronics Re: IEEE 802.16m-08/052: Abstract This contribution proposes support of error recovery for MAC management messages Purpose For review and adoption of proposed text in SDD Notice Release Patent Policy MAC, MAC Management 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>. Error Recovery for MAC Management Messages 1 IEEE C802.16m-09/0002 Yair Bourlas, Lei Wang, Erik Colban, Ken Stanwood NextWave Wireless Sean McBeath, Jin Lei Huawei Technologies Sung Kyung Kim ETRI Mo-Han Fong Nortel Networks Yih-Shen Chen, Kelvin Chou, I-Kang Fu, Paul Cheng MediaTek Inc. Youngbin Chang Samsung Electronics 1 Introduction Certain large MAC management messages require fragmentation, especially for UL transmission for cell edge users. Without an error recovery mechanism which can handle individual fragments, the entire message must be retransmitted after the message timer expires, which reduces the efficiency of the system. In this contribution, we propose to extend the functionality of the ARQ-HARQ interaction mechanism (see 10.2.3 in SDD) to management messages. 2 Text Proposal ================= Start of Proposed Text ======================== 10.11 MAC Management To meet the latency requirements for aspects of network entry, handover, state transition and so on, 802.16m supports the fast and reliable transmission of MAC management messages.. 2 IEEE C802.16m-09/0002 To provide reliable transmission of MAC management messages, message timers for retransmission are defined for all the unicast MAC management messages. The message timers may be different for different MAC management messages. If HARQ is applied during the transmission of a MAC management message and if the HARQ process is terminated with an unsuccessful outcome before the expiration of the message timer, the MAC message management entity in the transmitter may initiate retransmission of the complete message or the message fragment of the failed HARQ burst. ============================== End of Proposed Text =============== 3