Presentation is loading. Please wait.

Presentation is loading. Please wait.

E-MBS Zone Specific Pilot Patterns for MBSFN

Published byTracey Young Modified over 6 years ago

Similar presentations

Presentation on theme: "E-MBS Zone Specific Pilot Patterns for MBSFN"— Presentation transcript:

1 E-MBS Zone Specific Pilot Patterns for MBSFN
Document Number: IEEE C80216m-09/0929 Date Submitted: Source: Debdeep Chatterjee, Huaning Niu, Jong-kae (JK) Fwu, Hujun Yin Intel Corporation Venue: IEEE Session #61, Cairo, Egypt. Re: Category: SDD CR / Area: Chapter (E-MBS zone specific pilot patterns for MBSFN) “Comments on SDD section E-MBS zone specific pilot patterns for MBSFN” Purpose: To discuss and adopt the proposed text in the revision of the 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 Overview E-MBS content is to be transmitted in the SFN mode, with multiple BSs transmitting the same information for a particular MBS zone Delay spread is higher than typical unicast scenarios, and is dependent on the ISD and the MBSFN channel model Unicast pilot patterns are not sufficient Need new pilot pattern designs for E-MBS

3 Simulation Parameters
OFDM parameters 10 MHz (1024 subcarriers) Number of OFDM symbols per subframe 6 Data burst size 4 PRUs distributed uniformly over 48 PRUs Permutation Tone based LDRU Number of total RU in one subframe 48 Number of Antennas 2 transmitter antennas, 2 receiver antennas [2Tx,2Rx] 1 transmitter antenna, 2 receiver antennas [1Tx,2Rx] Transmission mode Rate 1 transmission scheme: SFBC, SIMO Rate 2 transmission scheme: Spatial Multiplexing (SM) Channel coding LTE FEC with 8 Turbo decoding iterations Modulation/Coding QPSK ½, QPSK ¾, 16QAM ½, and 16QAM ¾ (for rate-1 transmission) 16QAM ½, and 16QAM ¾, 64QAM ½, and 64QAM ¾ (for rate-2 transmission) Channel model MBSFN channel models for 1.5km ISD and 5km ISD with MS speeds of 3kmph and 120kmph Channel estimation 2-D MMSE channel estimator with 3 PRU level CE Delay Spread perfectly known Actual PDP unknown, assumed to be flat at receiver MIMO detector LMMSE for SFBC and SM MRC for SIMO Scenarios Noise limited

4 Pilot Patterns Evaluated (1 of 3)
= pilot tone (ant. 1); = pilot tone (ant. 2); = data tone

5 Pilot Patterns Evaluated (2 of 3)
= pilot tone (ant. 1); = pilot tone (ant. 2); = data tone

6 Pilot Patterns Evaluated (3 of 3)
= pilot tone (ant. 1); = pilot tone (ant. 2); = data tone

7 Power Delay Profile: MBSFN, 1.5km ISD

8 Throughput: 1.5km ISD, Speed=120kmph, 2x2SFBC
INTC 5.5% pattern is the best choice, with very similar performances by MediaTek 5.56% and Samsung 5.56% patterns

9 Throughput: 1.5km ISD, Speed=120kmph, 1x2SIMO
INTC 5.5% pattern is the best choice, with very similar performances by MediaTek 5.56% and Samsung 5.56% patterns

10 Throughput: 1.5km ISD, Speed=120kmph, SFBC & SIMO Comparison
1x2 SIMO is a better option as compared to 2x2 SFBC as a rate-1 scheme (Also check C.E. MSE on slide # 20)

11 Throughput: 1.5km ISD, Speed=120kmph, 2x2 SM
INTC 5.5% pattern is the best choice, and slightly outperforms MediaTek 5.56% and Samsung 5.56% patterns ITRI 8.33% pattern slightly outperforms INTC 8.33%

12 5km ISD

13 Throughput: 5km ISD, Speed = 120kmph, 1x2 SIMO
INTC 11.11% pattern appears to be the optimal choice INTC 8.33% pattern also provides a decent tradeoff, and outperforms LGE 7.41%, ITRI 8.33%, and Samsung A pattern (8.33%)

14 Summary 1x2 SIMO is a better option than 2x2 SFBC for rate-1 transmission Better overall channel estimation with less overhead Transmit diversity of SFBC not sufficient to overcome the increased overhead penalty We recommend two pilot patterns for different scenarios INTC 5.56% pattern for small cell sizes (e.g. 1.5km ISD) INTC 11.11% pattern for larger cell sizes (e.g. 5km ISD) The following patterns may also be considered (with loss of optimality) LGE 7.41% INTC 8.33% ITRI 8.33% INTC 11.11% may be more suitable for larger cell sizes, like 5km ISD, especially, if 2x2 SM is considered for these scenarios Samsung’s and MediaTek’s 5.56% pilot density patterns perform very close to the INTC 5.56% pattern, with the latter slightly outperforming the former two. More importantly, the 5.56% pilot density patterns fail to provide acceptable performance for the 5km ISD scenario

15 Proposed SDD Text Change:
Replace the following text in red on page 81, line 17 of Section : “The definitions of the E-MBS zone specific pilots are FFS” with the following text in blue: “The E-MBS zone specific pilot patterns are specified within a PRU. Pattern 1, shown in Fig. xxx, is to be used for small cell sizes (e.g. 1.5km ISD), whereas Pattern 2, shown in Fig. yyy, is to be used for larger cell sizes (e.g. 5km ISD), with the subcarrier indices increasing from top to bottom, and OFDM symbol indices increasing from left to right.” Fig. xxx: E-MBS zone specific pilot Pattern 1 Fig. yyy: E-MBS zone specific pilot Pattern 2 = pilot tone (ant. 1); = pilot tone (ant. 2); = data tone

16 Appendix 3kmph Speed Throughput vs. SNR Results
1.5km ISD, 2x2 SFBC and 1x2 SIMO 1.5km ISD, 2x2 SM 5km ISD, 1x2 SIMO Channel Estimation MSE vs. SNR Results 1.5km ISD, 2x2 SFBC & SIMO

17 Throughput: 1.5km ISD, Speed = 3kmph, SFBC & SIMO

18 Throughput: 1.5km ISD, Speed = 3kmph, 2x2 SM

19 Throughput: 5km ISD, Speed = 3kmph, 1x2 SIMO

20 Channel Estimation MSE: 1
Channel Estimation MSE: 1.5km ISD, Speed=120kmph, SFBC & SIMO Comparison

21 Channel Estimation MSE: 1.5km ISD, Speed=120kmph, 2x2 SM

22 Channel Estimation MSE: 5km ISD, Speed=120kmph, 1x2 SIMO

Download ppt "E-MBS Zone Specific Pilot Patterns for MBSFN"

Similar presentations

Modified pilot patterns for 8 data streams IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-09/1724 Date Submitted:

Modified pilot patterns for 8 data streams IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-09/1724 Date Submitted:
Proposed Amendment Text for 8-Stream Pilot Pattern Document Number: IEEE C802.16m-09/0570 Date Submitted: 2009-03-02 Source: Chih-Yuan Lin

Proposed Amendment Text for 8-Stream Pilot Pattern Document Number: IEEE C802.16m-09/0570 Date Submitted: Source: Chih-Yuan Lin
1 UL Pilot Evaluation Results Document Number: IEEE C802.16m-08/1098r1 Date Submitted: 09-12-2008 Source: Jiacheng Huaning.

1 UL Pilot Evaluation Results Document Number: IEEE C802.16m-08/1098r1 Date Submitted: Source: Jiacheng Huaning.
8Tx Dedicated Pilot Pattern Simulation Results IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0805 Date Submitted:

8Tx Dedicated Pilot Pattern Simulation Results IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0805 Date Submitted:
8Tx Pilot Pattern Performance for IEEE 802.16m IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0544 Date Submitted:

8Tx Pilot Pattern Performance for IEEE m IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0544 Date Submitted:
Pilot Patterns for 16m 4x6 PUSC Tile Document Number: IEEE C802.16m-09/0139r1 Date Submitted: 2009-01-05 Source: Chih-Yuan Lin

Pilot Patterns for 16m 4x6 PUSC Tile Document Number: IEEE C802.16m-09/0139r1 Date Submitted: Source: Chih-Yuan Lin
Performance Comparison of CDM and FDM for Sounding Channel of 802.16m AWD IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-0850.

Performance Comparison of CDM and FDM for Sounding Channel of m AWD IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-0850.
SFH PHY Structure for IEEE 802.16m Amendment Document Number: IEEE S802.16m-09/0977 Date Submitted: 2009-04-27 Source: Pei-Kai Liao

SFH PHY Structure for IEEE m Amendment Document Number: IEEE S802.16m-09/0977 Date Submitted: Source: Pei-Kai Liao
1 MIMO Supports for IEEE 802.16m Broadcast Channel IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/1416r1 Date.

1 MIMO Supports for IEEE m Broadcast Channel IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/1416r1 Date.
1 Pilot Pattern for 8-Stream Transmission Document Number: IEEE C80216m-09/1138 Date Submitted: 2009-05-01 Source: Debdeep Chatterjee, Jong-kae (JK) Fwu,

1 Pilot Pattern for 8-Stream Transmission Document Number: IEEE C80216m-09/1138 Date Submitted: Source: Debdeep Chatterjee, Jong-kae (JK) Fwu,
Title: Evaluation of DL MIMO Schemes: OL SU Spatial Multiplexing with 2-D MMSE channel estimation Document Number: IEEE C802.16m-08/1043r2 Date Submitted:

Title: Evaluation of DL MIMO Schemes: OL SU Spatial Multiplexing with 2-D MMSE channel estimation Document Number: IEEE C802.16m-08/1043r2 Date Submitted:
Performance Evaluation of Pilots for MIMO Mode 5 (CDR) IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE S80216m-09_2253 Date.

Performance Evaluation of Pilots for MIMO Mode 5 (CDR) IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S80216m-09_2253 Date.
Resource granularity for unicast and E-MBS FDM multiplexing IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-09_0405r1.

Resource granularity for unicast and E-MBS FDM multiplexing IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-09_0405r1.
1 Comparison of DL Pilot Patterns IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/798r1 Date Submitted: 2008-07-07.

1 Comparison of DL Pilot Patterns IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-08/798r1 Date Submitted:
MLD Performance for CL MU-MIMO with ZF precoding (AWD -15.3.6) IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-09/1312.

MLD Performance for CL MU-MIMO with ZF precoding (AWD ) IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C80216m-09/1312.
1 Miniband Permutation Formula Update for DL/UL PHY IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0886r1 Date.

1 Miniband Permutation Formula Update for DL/UL PHY IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE C802.16m-09/0886r1 Date.
IEEE 802.16m Sounding Channel Designs Document Number: IEEE C802.16m-09/0140r1 Date Submitted: 2009-01-08 Source: Chih-Yuan Lin

IEEE m Sounding Channel Designs Document Number: IEEE C802.16m-09/0140r1 Date Submitted: Source: Chih-Yuan Lin
Results on Downlink Pilot Structures IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-08/762 Date Submitted: 2008-07-16.

Results on Downlink Pilot Structures IEEE Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-08/762 Date Submitted:
Simulation Results for 8 Tx Antenna Pilots Document Number: IEEE C802.16m-09/0786 Date Submitted: 2009-04-24 Source: Jie Zhang

Simulation Results for 8 Tx Antenna Pilots Document Number: IEEE C802.16m-09/0786 Date Submitted: Source: Jie Zhang
Title: Improvements in System Performance with spatial multiplexing for MBS Document Number: IEEE C802.16m-08/609r1 Date Submitted: 2008 – 10 - 31 Source:

Title: Improvements in System Performance with spatial multiplexing for MBS Document Number: IEEE C802.16m-08/609r1 Date Submitted: 2008 – Source:

Similar presentations

Ads by Google