Slides in support of the Proposed Text for Section 16.9.3.1 E-MBS Configuration Indicators Document Number: IEEE S80216m-09_2779 Date Submitted: 2009-12-30.

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Slides in support of the Proposed Text for Section E-MBS Configuration Indicators Document Number: IEEE S80216m-09_2779 Date Submitted: Source: Kaushik Josiam, Qi Taeyoung Seonghyeon Hai Jaejeong Venue: Re: Contribution in support of a comment on P802.16m/D3 currently under LB#30b Purpose: For review and adoption by IEEE m TGm 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 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 Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and. Further information is located at and.

Zone Indication by Triangle Method Resources are split between zones only in the frequency domain Contiguous sub-bands per zone Worst case scenario considered Max 21 subbands in 20MHz Need 231 nodes to index contiguous subbands 8 bits per zone for supporting FDM Bit overhead : 8N N is the number of E-MBS zones Should inform the total number of E-MBS zones explicitly 20MHz case

Zone Indication by Bit-MAP Method Zone Allocation Bit-MAP : No need to inform the number of E-MBS zones explicitly through the control message Zone Allocation Bit-MAP AMS can know the zone configuration through the Bit-MAP. Bit 0 means No Changing of the Zone. Bit 1 means Changing of the Zone regardless of the kind of zones. The number of zones : the number of bit 1 in the Bit-MAP + 1 Bit overhead : (Total number of Subbands – 1) Bits No increase even if the number of E-MBS zones increases ZI (Zone_Indicator) Used for distinguishing between E-MBS zones and unicast zones Bit 0 means Unicast Zone. Bit 1 means E-MBS Zone. 20MHz case

Comparison Between Two Methods Triangle method Bit overhead : 8N In previous example, bit overhead is 24 bits. Bit overhead is increased as the number of E-MBS zones increases. Additional information bits for the number of E-MBS zones are needed. 3 bits are already being used in the AAI-E-MBS-CFG_Message in current P802.16m/D3. Bit-MAP method Bit overhead : Total number of Subbands – 1 In previous example, bit overhead for RI is 20 bits. Bit overhead is fixed regardless of the number of E-MBS zones. The number of zones can be known implicitly. Additional information bits for the number of E-MBS zones are no needed. E-MBS zone is distinguished from the unicast zone by ZI

Bit overhead comparison for zone indication in freq. domain BW The number of E-MBS zones *TriangleFolding Bit-MAP 20 MHz 18 Bits 20 Bits 216 Bits 324 Bits 432 Bits 10 MHz 16 Bits 9 Bits 212 Bits 318 Bits 424 Bits 5 MHz 14 Bits 3 Bits 28 Bits 312 Bits 416 Bits * Triangle method : Bits for informing the number of E-MBS zones are additionally needed. Comparison Between Two Methods

Bit overhead comparison for resource indexing in freq. domain * Triangle method : Bits for informing the number of E-MBS zones are additionally needed.

Proposed Text Adopt the proposed text in the latest revision of contribution C80216m-09/2779