1 Proposed Text on Relay A-MAP for IEEE 802.16m IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/439 Date Submitted:

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1 Proposed Text on Relay A-MAP for IEEE m IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/439 Date Submitted: Source: Aeran Youn, Jong Young Han, Dongguk Lim Voice: Doo-hyun Sung, Kiseon Ryu, Jin Sam Kwak LG Electronics LG R&D Complex, 533 Hogye-1dong, Dongan-gu, Anyang, , Korea Venue: TGmSDD Change Request for 16m SDD (C80216m-08_003r7) Base Contribution: N/A Purpose: To be discussed and adopted in IEEE m SDD 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.

2 Proposed Text on Relay A-MAP for IEEE m

3 Motivation  In the current SDD, one A-MAP (N-USCI + USCI) region is defined within a subframe.  Regarding relay system, there are 3 categories of A-MAP recipients.  AMSs communicating with ABS/nTrARS directly  ARSs, which are TrARSs (Transparent ARS) or nTrARSs (Non-transparent ARS)  AMSs communicating with ABS/nTrARS via TrARS indirectly  If all A-MAP IEs are transmitted through one A-MAP region, the overhead of blind decoding of A-MAP IEs by A-MAP recipients would be huge.

4 Proposed Relay Advanced-MAP (1/2)  Define a ‘Relay A-MAP region’ in case of relay support.  R_N-USCI (Relay Non-User Specific Control Information) + R_USCI (Relay User Specific Control Information)  Two A-MAP regions within a subframe  A-MAP region containing A-MAP IEs  For AMSs communicating with ABS/nTrARS directly  Relay A-MAP region containing A-MAP IEs  For ARSs which are TrARSs (Transparent ARS) or nTrARSs (Non-transparent ARS)  For AMSs communicating with ABS/nTrARS via TrARS indirectly

5 Proposed Relay Advanced-MAP (2/2)  Advantages of proposed Relay A-MAP  Reduce blind decoding overhead for 3 types of A-MAP recipients significantly.  No explicit signaling needed for indicating Relay A-MAP.  No impact on normal AMS’s A-MAP decoding  How to decode Relay A-MAP without explicit information  1. Decoding N-USCI of A-MAP  2. Extract USCI end position from N-USCI  Implicitly acquire the starting position of R_N-USCI  3. Decoding R_N-USCI of Relay A-MAP  4. Decoding R_USCI  After decoding N_USCI, Relay A-MAP can be decoded without explicit signaling

6 Text proposal 15. Support for multi-hop relay 15.4 Data and Control Functions 15.4.x Downlink Control Structure 15.4.x.y Advanced MAPs (A-MAP) 15.4.x.y.z Relay Advanced MAPs (R_A-MAP) When ABS or ARS has subordinate ARSs within its coverage, two A-MAP regions are defined, i.e., A-MAP and Relay A-MAP regions. Relay A-MAP consists of Relay N-USCI and Relay USCI. Relay A-MAP region is FDMed with A-MAP region and is located after A-MAP region. Through A-MAP region, A-MAP IEs are transmitted for AMSs communicating with ABS or non-transparent ARS directly. Through Relay A-MAP region in superordinate stations (ABSs or ARSs), A-MAP IEs are transmitted for subordinated ARSs or AMSs subject to transparent ARS Start of the Text End of the Text

7 References [1] IEEE m-08/003r7, “The Draft IEEE m System Description Document”, Jan [2] IEEE P802.16j/D7, “Draft Amendment to IEEE Standard for Local and Metropolitan Area Networks: Air Interface for Broadband Wireless Access Systems Multihop Relay Specification,” Oct. 2008