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3GPP2 TSG-C WG3

TITLE : UMB performance results

SOURCE:

TSG-C WG3 EMAH

Contact to: Satoshi Konishi, Vice-chair of EMAH sa-konishi@kddi.com

ABSTRACT: This contribution provides performance results of UMB (Ultra Mobile Broadband) system. In addition, the EMAH (Evaluation Methodology Ad-Hoc) activities for the UMB characterization are also summarized in this contribution.

RECOMMENDATION: Review and adopt for the submission from TSG-C

©2008 3GPP2. All rights reserved.

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Outline

1. Introduction2. Background

Activities in TSG-C WG3 EMAH for performance evaluation of UMB system

Calibration process among companies

3. Simulation conditions for UMB performance evaluation4. Simulation results5. Conclusion6. Appendix:

A. Examples of link level simulation results B. System level simulation results for calibrationC. Backup slides for simulation results under NGMN setup

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Introduction

Standardization of UMB system March 2006 to February 2007: Decision of framework and components April, 2007: Publication of UMB Air Interface Specification Version 1.0 May to August, 2007: Revision of UMB Air Interface Specification September, 2007: Publication of UMB Air Interface Specification Version

2.0

However, UMB characterization has not been completed yet …

Necessity of Performance evaluation for UMB system!

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Background (1)~ History on Activities for Performance Evaluation of UMB ~

History: June, 2007: agreed upon to start UMB characterization July to August, 2007: preparatory work (e.g. outline of

simulation setting, parameters, timeline) August to December, 2007: Calibration of link curves December 2007 until now: Calibration of system level

simulation results

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Background (2)~ Calibration Processes for UMB Performance Evaluation ~

Link level simulations: From Aug., 2007, each company began to provide simulation

results Oct, 2007: confirmed that three companies (Samsung, Huawe

i, and KDDI) were aligned Nov. to Dec., 2007: another two companies (Qualcomm and

Alcatel-Lucent) were also aligned with the three companies

Appendix A: examples of link level simulation results

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Background (3)~ Calibration Processes for UMB Performance Evaluation ~

System level simulations: From Dec., 2007, companies (KDDI, Samsung, Nortel, Qualcomm, Huawe

i, and Alcatel-Lucent) began to provide simulation results In total, five rounds have been performed for calibration among companie

s so far March, 2008: confirmed that all the companies involved in the calibration

(KDDI, Samsung, Nortel, Qualcomm, and Huawei) were aligned on the full-buffer traffic model in the forward link (FL-FB)

April, 2008: confirmed that all the companies involved in the calibration were aligned on the VoIP traffic model in the forward link (FL-VoIP)

Up to now: most of the companies have been aligned in the remaining simulation scenarios as follows

• Full-buffer traffic model in the reverse link (RL-FB)

• VoIP traffic model in the reverse link (RL-FB)

• Full-buffer traffic model in the forward link with MIMO (FL-MIMO)

Appendix B: examples of system level simulation results

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Toward UMB Performance Evaluation

For the purpose of calibrations among companies, we use a set of simplified simulation models such as Simplified power control model compared to the UMB air inter

face specification No power control in the forward link No rank adaptation in the FL-MIMO simulations Etc.

This presentation provides actual performances both taking account of the realistic scenarios as in above and using simulation parameters in the NGMN’s evaluation metho

dology document

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Simulation Parameters

ValueWrap-around model190.52.0

Path Loss ModelShadowing ModelFading Channel ModelBS Antenna PatternMS Antenna Pattern

-115204624-1745910

Noise Figure of MS [dB]

70 deg @ 3 dB beamwidth, 20 dB max.

Frequency Reuse Factor

Omni

Pilot Format ID

Thermal Noise Density [dBm/Hz]Noise Figure of BS [dB]

Penetration Loss [dB]

Total Transmission Power of MS [dBm]Total Transmission Power of BS [dBm]

TU6 model with 3km/h

MS Antenna Gain [dBi]BS Antenna Gain [dBi]

Carrier Frequency [GHz]128.15+37.6log10(d ) [dB], d in kilometersLog-normal distribution with standard

No. of 3-sector cellsSite-to-Site Distance [km]

ParameterCell Structure Model in Simulations

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Simulation Conditions for Full Queue Traffic Model

System bandwidth – 992 subcarriers over 10MHz Overhead

Guard band – 32 subcarriers CP - 6.51 us Control overhead – 6 tiles (96 subcarriers) in FL with 10% power

overhead, one CDMA subsegment (128 subcarriers) every 8 frames and 2 tiles (32 subcarriers) for R-ACKCH every frame

Superframe preamble – one out of 26 frames (3.85%) Scheduler – Equal resource scheduler (similar to proportional

fair) Power control – No power control for FL. OSI-based power

control for RL with DataCtoI range [-3dB,10dB] and IoTtarget 7.5dB Antenna configurations

SIMO1x2 for FL and RL MIMO2x2 with precoding (64 precoding matrices used) and rank selection

for FL

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~ Full Queue Traffic Model ~ Simulation Results

Average sector throughput and

spectrum efficiency

Average user throughput and

spectrum efficiency

Cell-edge user throughput and

spectrum efficiency

Non-MIMO

(1x2)

12.5 Mbps 1.25 Mbps 0.38 Mbps

MIMO

(2x2)

13.3 Mbps 1.33 Mbps 0.50 Mbps

Forward link (Downlink)

Average sector throughput and

spectrum efficiency

Average user throughput and

spectrum efficiency

Cell-edge user throughput and

spectrum efficiency

Non-MIMO

(1x2)

9.46 Mbps 0.95 Mbps 0.36 Mbps

Reverse link (Uplink)

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Simulation Conditions for VoIP Traffic Model

System bandwidth – 480 subcarriers over 5MHz Overhead

Guard band – 32 subcarriers CP - 6.51 us Control overhead – 4 tiles (64 subcarriers) in FL with 26%

power overhead, 160 subcarriers in RL, including one CDMA subsegment (128 subcarriers) and 2 tiles (32 subcarriers) for R-ACKCH

Superframe preamble – one out of 26 frames (3.85%)

Power control – Target termination based power control.

Antenna configurations – SIMO1x2 for FL and RL

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~ VoIP Traffic Model ~ Simulation Results

VoIP capacity Average latency 95 percent tile of 98% packet delay

Non-MIMO

(1x2)

350+ 12ms 45ms

Forward link (Downlink)

VoIP capacity Average latency 95 percent tile of 98% packet delay

Non-MIMO

(1x2)

300 15ms 50ms

Reverse link (Uplink)

* Since the VoIP system is RL limited, though the FL VoIP capacity is far more than 350, we did not simulate to find the actual number.

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Conclusions

This contribution summarizes activities in TSG-C WG3 EMAH for UMB characterization Calibration of both link- and system-level simulations has

been almost completed

UMB performance results are provided using NGMN simulation conditions.

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References

[1] 3GPP2, “Ultra Mobile Broadband (UMB) Air Interface Specification,” C.S0084-000~009 v.2.0, Sep. 2007.

[2] NGMN Alliance, “NGMN Performance Evaluation Methodology” Version 1.2, June 2007.

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Appendix A~ Examples of link level simulation results ~

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Link level results (1)

FL, BRCH, 8 tiles, PF#10

1.E-03

1.E-02

1.E-01

1.E+00

0 5 10 15 20 25

Es/No [dB]

FE

R

H 1 H 2 H 3 H 4 H 5 H 6S 1 S 2 S 3 S 4 S 5 S 6K 1 K 2 K 3 K 4 K 5 K 6Q 1 Q 2 Q 3 Q 4 Q 5 Q 6A1 A2 A3 A4 A5 A6AV1 AV2 AV3 AV4 AV5 AV6

H: HuaweiS: SamsungK: KDDIQ: QualcommA: Alcatel-LucentAV: Averaged values

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Link level results (2)

RL, 1 tiles, PF#5

1.E-03

1.E-02

1.E-01

1.E+00

-4 -2 0 2 4 6 8 10 12Es/No [dB]

FE

R

H 1 H 2 H 3 H 4 H 5 H 6S 1 S 2 S 3 S 4 S 5 S 6K 1 K 2 K 3 K 4 K 5 K 6Q 1 Q 2 Q 3 Q 4 Q 5 Q 6A1 A2 A3 A4 A5 A6AV1 AV2 AV3 AV4 AV5 AV6

H: HuaweiS: SamsungK: KDDIQ: QualcommA: Alcatel-LucentAV: Averaged values

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Appendix B~ System level simulation results

for calibration~

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System level simulation results (1)~ FL, Full-buffer Traffic, Ped-B w/ 3km/h ~

Sector throughput

9

9.5

10

10.5

11

11.5

12

1

Mb

ps

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

5% edge user throughput

0

50

100

150

200

250

300

350

400

1

kbp

s

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

Packet format distribution

0

0.05

0.1

0.15

0.2

0.25

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Packet form at

pd

f

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

Mobile throughput vs geometry

0

500

1000

1500

2000

2500

3000

3500

-15 -10 -5 0 5 10 15 20 25

geom etry (dB)

Mo

bile

th

rou

gh

pu

t (k

bp

s)

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

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System level simulation results (2) ~ FL, VoIP Traffic, Ped-B w/ 3km/h ~

98% delay distribution

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0 0.05 0.1 0.15

98% delay (sec)

cdf

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

Packet error rate cdf

0

0.2

0.4

0.6

0.8

1

1.2

0.0001 0.001 0.01 0.1 1

per

cdf

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

Loading distribution

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0 0.2 0.4 0.6 0.8 1

Loading (%)

cdf

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

HARQ distribution

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1 2 3 4 5 6 7

Transm ission

pd

f

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

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System level simulation results (3) ~ RL, VoIP Traffic, Ped-B w/ 3km/h ~

98% latency distribution

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0 0.02 0.04 0.06 0.08 0.1

98% latency (sec)

cdf

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

Packet error rate cdf

0.9

0.91

0.92

0.93

0.94

0.95

0.96

0.97

0.98

0.99

1

0.0001 0.001 0.01 0.1 1

per

cdf

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

HARQ distribution

0

0.1

0.2

0.3

0.4

0.5

0.6

1 2 3 4 5 6 7

Transm ission

pd

f

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

Loading distribution

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0 0.2 0.4 0.6 0.8 1

Partial loading factor

cdf

KDDI

Samsung

Nortel

Qualcomm

Huaw ei

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Appendix C~ Backup slides for simulation

results under NGMN setup~

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~ Full Queue Traffic Model ~ Simulation Results (1)

0 1000 2000 3000 4000 50000

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Mobile Throughput (Kbps)

CD

F

FL, mobile throughput distribution

SIMO1x2

MIMO2x2

0 0.5 1 1.5 2 2.5 30

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Network Normalized Mobile Throughput

CD

F

FL, fairness

SIMO1x2

MIMO2x2

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~ Full Queue Traffic Model ~ Simulation Results (2)

0 500 1000 1500 2000 25000

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Mobile Throughput (Kbps)

CD

F

RL, mobile throughput distribution

SIMO1x2

0 0.5 1 1.5 2 2.50

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Network Normalized Mobile Throughput

CD

F

RL, fairness

SIMO1x2

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~ Full Queue Traffic Model ~ Simulation Results (2)

0 2 4 6 8 10 12 1410

-2

10-1

100

IoT distribution

IoT (dB)

CC

DF

SIMO1x2

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~ VoIP Traffic Model ~ Simulation Results (1)

0 0.02 0.04 0.06 0.08 0.10

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1FL VoIP, packet delay distribution

Packet Latency (sec)

CD

F

350 user/sector

0 0.02 0.04 0.06 0.08 0.10

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1FL VoIP, 98% packet delay distribution

98% Packet Latency (sec)

CD

F

350 user/sector

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~ VoIP Traffic Model ~ Simulation Results (2)

0 0.02 0.04 0.06 0.08 0.10

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1RL VoIP, packet delay distribution

Packet Latency (sec)

CD

F

300 user/sector

0 0.02 0.04 0.06 0.08 0.10

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1RL VoIP, 98% packet delay distribution

98% Packet Latency (sec)

CD

F

300 user/sector

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~ VoIP Traffic Model ~ Simulation Results (2)

0 2 4 6 8 10 1210

-2

10-1

100

RL VoIP, IoT distribution

IoT (dB)

CC

DF

300 user/sector