1 DL Pilot Comparison Summary from Contributions IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/847r2 Date Submitted:

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Presentation transcript:

1 DL Pilot Comparison Summary from Contributions IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/847r2 Date Submitted: Source: Jong-kae (JK) Jiacheng Huaning Yuval Sassan Hujun Yin Venue: TGm call for comments on IEEE m-08/024. Specific topic : “DL Pilot scheme” Base Contribution: N/A Purpose: To be discussed and adopted by 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 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 Contribution Document C80216m-08_649r1.ppt & IEEE C802.16m-08/367 (Intel) C80216m-08_798.ppt (LG) C80216m-08_672r1.pdf (Samsung) C80216m-08_618.pdf (Nortel) C80216m-08_679.pdf (Huawei) C802.16m-08/253r2 (MOT) C80216m-08_762r1.doc (Ericcson) C80216m-08_716.doc (Panasonic)

3 Comparison Summary of DL Pilot Results/Sourc e LGE( C#798)Intel (C#694r1)MOT(2532r2)Samsung(C#6 72r1) Nortel(C#618)Huawei(C#679 ) Panasonic (C#716) Ericsson(C#7 62r1) 2 TX common LGE, Intel, Samsung best Similar performance. Intel’s original and Intel/ITRI/MediaTek/ Posdata best Similar performance - Huawei is the best - Others are similar - Interference case, pilot boosting gains are lower when pilot to pilot interference is present - Intel and Ericcson pattern for interference- limited case are almost the same performance - Intel, LG, Ericcson are the best for high speed, noise limited case 4Tx commonLGE best,- Intel, Samsung, Med best - Intel has additional gain for interference limited MediaTek, Intel and MOT are among the best. Intel/Samsung are the best with low pilot density - Nortel, LG high speed - Nortel, Alcatel-Lucent low speed - Huawei is the best - Others are similar 4Tx dedicated - LGE, Motorola, low/mid SNR - Samsung and high SNR - Intel original and Intel-ITRI-MediaTek- Posdata best for low SINR all channel - MOT, LG bets for PB3 and high SNR - Intel, MOT, MediaTek SNR < low and mid SNR. - Samsung high SNR - Huawei is the best - Others are similar CommentNoise limited only with testing interference limited scenarios Include noise limited, interference limited scenario. Also pilot boosting, - Noise limited - Intel, MediaTek, MOT are robust in velocity speed Noise limited only - Alcatel-Lucent, MOT have large degradation at high speed - Intel, Samsung are robust for speed - Noise limited - 1D Ch. Est which is not consistent with evaluation criteria - Noise limitedFocus on the sector- specific pilot, not different pilot pattern Pilot pattern in mulit-cell scenario should minimize collisions between cells

4 Which is the Best – 2Tx Intel (798, 694r1, 762r1) LG (798, 762r1) Samsung (798) Huawei (679) Ericsson(762r1)

5 Which is the Best – 4Tx Intel (798, 694r1, 253r2, 672r1) LG (798, 694r1, 618) MOT (798, 694r1, 253r2) MediaTek (798, 694r1, 253r2) Samsung (798, 694r1, 253r2, 672r1) Nortel (618) Alcatel-Lucent (618) Huawei (679)

6 Robustness for High Mobility Intel(694r1, 762r1, 253r2), LG(618, 762r1) Nortel(618) Ericcson (762r1) MediaTek (253r2) MOT (253r2)

7 Robustness for Interference-limited Intel (694r1, 716, 762r1) Ericsson (762r1)

8 Recommendation Adopt Intel’s 1, 2 stream pilot (C80216m- 08_648.doc) and 4 stream pilot designs (C80216m-08_121r1.doc) for their overall superb performance and its robustness under various scenarios based on members’ independent studies