hspa+ and lte test challenges for multiformat ue …€¦ · hspa+ and lte test challenges for...

© 2012 Agilent Technologies

Wireless Communications

Greater insight. Greater confidence. Accelerate next-generation wireless.

HSPA+ and LTE Test Challenges for Multiformat UE Developers

Presented by: Jodi Zellmer, Agilent Technologies



2 © 2012 Agilent Technologies



Agenda

Introduction

FDD Technology Evolution

Technology Overview

Market Overview

The Future for Multiformat UE Developers

Conclusions






Agenda

Introduction


Technology Overview

Market Overview


Conclusions






What

about

tomorrow?

HSPA+ and LTE: Living Together?

HSPA

HSPA+

LTE

• Higher data throughput

• More applications

HSPA+ and LTE - exciting

today






Agenda

Introduction


Technology Overview

Market Overview


Conclusions






3GPP Standards Evolution – FDD

Rel-7

HSPA+, MIMO Rel-99

W-CDMA

Rel-5

HSDPA

Rel-6

HSUPA

42 Mbps 84 Mbps 168 Mbps 336+ Mbps DL

11 Mbps 23 Mbps 23 Mbps 46+ Mbps UL

150 Mbps 303 Mbps 1.2 Gbps 1.2+ Gbps DL

51 Mbps 86 Mbps 600 Mbps 600+ Mbps UL

DC-HSDPA

Rel-8

LTE 2 x 2

DC+MIMO, DC-HSUPA

Rel-9

LTE 4 x 4 MIMO

4C-HSDPA

Rel-10

LTE-Advanced

HSPA+ Advanced

Rel-11

LTE-Advanced

DL 384 kbps 14.4 Mbps 14.4 Mbps 28.8 Mbps

UL 384 kbps 384 kbps 5.8 Mbps 11 Mbps






Agenda

Introduction


Technology Overview

Market Overview


Conclusions






HSPA and HSPA+ Overview

WCDMA Wideband CDMA Rel-99

HSPA High-speed packet access Rel-5 and Rel-6

HSPA+ Enhanced HSPA Rel-7

• HSDPA and HSUPA (DL and UL)

• 2 ms vs. 10 ms transmission times

• New DL modulation type: 16QAM

• UE Acknowledgements and CQI

• MAC real-time scheduling

• Flexible UL power grants

• New DL modulation type: 64QAM

• New UL modulation type: 16QAM

• DL flexible packet sizes

DL 384 kbps

UL 384 kbps

DL 14.4 Mbps

UL 5.6 Mbps

DL 21 Mbps

UL 11 Mbps






MIMO and Multi-Carrier Overview

MIMO Multiple input

multiple output

2 to 4 carriers

HSPA+

Rel-7

MIMO

• Two DL data streams, 2 DL antennas

• Two UL antennas

• One 5 MHz channel

Two to four carriers

• DC is two carriers

• Multiple 5 MHz channels

• DL and/or UL

• Multiple antennas not required

HSPA+ Rel-7 to Rel-10

Technology 3GPP DL UL

HSPA+ R7 21

MIMO R7/8 42

2C HSDPA R9 42

4C HSDPA R10 84

2C + MIMO R9 84

4C + MIMO R10 168

DC-HSUPA R9 23

Mbps






HSPA+ Advanced: Overview

MIMO

2 to 8 carriers

HSPA+

Rel-7

Multi-

point

Five to eight carriers

• Up to 40 MHz aggregate bandwidth

• Downlink only

• Can be combined with MIMO

Multi-point transmission

• Data sent from multiple cells

• Requires multiple carriers

• UE must support Rx diversity


HSPA+

Rel-7 and Rel-8


HSPA+ R7 21

MIMO R7/8 42

2C HSDPA R9 42

4C HSDPA R10 84

2C + MIMO R9 84

4C + MIMO R10 168

8C HSDPA R11 168

8C + MIMO R11 336

DC-HSUPA R9 23

Mbps

HSPA+ Adv.

Rel-8 to Rel-11






LTE Overview Rel-8 and Rel-9

Long Term Evolution of UMTS

EPC is all-IP

DL 100 to 303 Mbps

UL 51 to 86 Mbps

RB = 0.5 ms in 180 kHz

Subcarriers

MIMO

UL SC-FDMA

DL OFDMA






LTE-Advanced Overview A 4G Technology According to IMT-Advanced

Carrier aggregation

Interference management

Enhanced MIMO

LTE

Rel-8 and

Rel-9

Enhanced MIMO

• Up to 8x8 in the DL

• Up to 4x4 in the UL

• Multi-user MIMO (MU-MIMO)

Carrier Aggregation

• Component carriers (CCs)

• Use any existing bandwidth

• Up to 5 CCs in the DL and UL


LTE-Advanced Rel-10


DL 2x2 MIMO R8 150

UL SISO R8 75

UL 2x2 MIMO R9 150

DL 4x4 MIMO R9 303

DL 8x8 MIMO R10 606

DL 5 CCs R10 750

DL 5C + 2x2 R10 1500

UL 4x4 MIMO R10 300

UL 5 CCs R10 375

UL 5C + 2x2 R10 750

Mbps






Agenda

Introduction


Technology Overview

Market Overview


Conclusions






Strong Industry Support

14

►

►

►

►

►

►

HSPA LTE

Networks

Launched 424 49

Committed 211 226

Devices 3,227 197






It’s All About Data Rates…Especially in the Downlink

20 MHz

10 MHz

5 MHz

• HSPA+ 168 Mbps

• LTE 172 Mbps

• HSPA+ 84 Mbps

• LTE 73 Mbps

• HSPA+ 42 Mbps

• LTE 37 Mbps

Using 2x2 MIMO






LTE Wins - Later

0

100

200

300

400

500

600

700

800

900

1000

2007 2008 2009 2010 2011 2012 2013 2014 2015

Millio

ns o

f U

nit

s

Annual Handset Shipments by Technology Source: Deutsche Bank, July 2011

CDMA

GSM

WCDMA

HSPA

TD

LTE

WiMAX

HSPA

LTE






HSPA+ and LTE - Now

Installed base

New investment

L

T

E

H

S

P

A

A wary truce?

Or a comfortable balance?

Either way, more challenges for wireless developers






Agenda

Introduction


Technology Overview

Market Overview


Conclusions




The Future for Device Developers

HSPA+

WCDMA

WiFi

GSM

LTE

Cost Flexibility

A successful multiple-technology device

must balance cost and flexibility

19 19 © 2012 Agilent Technologies







UE Design Testing

So many tests, so little time…

Mech …etc

CE Marking

FCC

Field Tests

PRODUCT

Test List

X2000?

Test List

X100?

REF DESIGN

Validation

Report Failures

and replicate

issues for platform

team Test House Certification

Physical

Signalling

App Enabler

GCF

Conformance

Type

Approval

Report

Failures to

Validation

Report

Failures to

Validation

Add new

test Certification

and IOT fails

Operator Acceptance

Protocol Tests

RF Tests

Lab IOT Testing

Report

Failures to

Validation

Field Tests

PTCRB

GCF FT on

FTQ Net

Report

Failures to

Validation

PRODUCT

PRODUCT

PRODUCT

REF DESIGN

REF DESIGN

REF DESIGN

Relationships

Managed by

Validation Team

Lab IOT Testing

Live Network Testing

Multiple loops with

different testing as

the platform

matures

Initially func/perf,

then conformance

then IOT

External Testing

NEM Infra Lab

Report

Failures to

Validation

PRODUCT

REF DESIGN

Lab IOT Infr

Testing

RF Signalling

Modem Func/Perf

Inter-RAT Test

IOT Scenarios

RF Conf

Signalling Conf

UE Func/Perf

Inter-RAT

IOT

Apps Conf

Stress Test






CQI Value

Absolute

Grant

Start Uplink

FTP

Stop

Downlink

FTP

Graphical results are useful for observing

throughput performance over time

But statistics are useful too, to observe

the UE’s perceived channel quality

Challenge: Data Throughput Validation UE Functional and Performance Test






Challenge: Data Throughput Validation Automated Test

50

150

250

350

450

550

650

750

-100 -90 -80 -70 -60 -50 -40

Da

ta T

hro

ug

hp

ut (k

Byte

s/S

ec)

Cell Power (dBm)

Cell power vs. Data throughput rates - phone 2Ch 10562

Ch 10585

Ch 10608

Ch 10631

Ch 10654

Ch 10677

Ch 10700

Ch 10723

Ch 10746

Ch 10769

Ch 10792

Ch 10815

Ch 10838

Data rate

decreases

sharply for

high cell

power

Data rate

drop-outs






Challenge: Voice and Data Continuity Across Technologies UE Design Validation -

Inter-RAT Test

Many types of

handovers defined

between all

technologies IDLE

CONNECTED

Connection

establish/ release

Handover

Cell Re-selection

E-UTRA Handover

(eNodeB decision)

Cell Re-selection (UE decision)

3G LTE

RRC_Release handover

(eNodeB decision)

Connection

establish/ release SERVING

CELL

TARGET

CELL

3G LTE

LTE / 3G example






Challenge: Simultaneous UE Activities UE Design Validation – Stress Test

FTP

SMS

Cell

Power

Protocol Log Failure

Failure

Time

Failure caused

by SMS buffer

limitations in UE Failure caused

by unique

combination of

activities






Challenges: Inter-RAT, Battery Drain, Inter-Operability Operator Acceptance Test






Agilent: A Full Portfolio for the Wireless UE life-cycle

Fast, High-Performance Instruments

Results You Can Trust

MCD/ MBO

MWC 2012

EXT (E6607A)

8960 (E5515C)

GS8800

Next Generation Manufacturing

Industry Benchmark for 2G/3G/3.5G

PXT (E6621A)

8960 (E5515E)

New Power Unleashed for

2G / 3G / 3.5G R&D

Complete LTE R&D

2G/3G/LTE

DVT & RCT






Agenda

Introduction


Technology Overview

Market Overview


Conclusions






Conclusions

LTE

HSPA+ Adv.

LTE-Adv.

More LTE,

still HSPA+

Tomorrow:

more mobile

than fixed? Optim

al te

st

effic

iency

More data

applications

Flexible

Repeatable

Reliable

TEST






References

4G Mobile Broadband Evolution: 3GPP Release 10 and Beyond, February 2011, 4G Americas, http://www.4gamericas.org/documents/4G%20Americas_3GPP_Rel-10_Beyond_2.1.11%20.pdf

Overview of 3GPP Release 10 V0.1.3 (2012-01), 3GPP, http://www.3gpp.org/ftp/Information/WORK_PLAN/Description_Releases/Rel-10_description_20120124.zip

Overview of 3GPP Release 11 V0.0.9 (2012-01), 3GPP, http://www.3gpp.org/ftp/Information/WORK_PLAN/Description_Releases/Rel-11_description_20120124.zip

3GPP Long Term Evolution: System Overview, Product Development and Test Challenges, Agilent Technologies, September 9 2009, www.agilent.com/find/pxt

HSPA+ Evolution: Enhanced Mobile Broadband for All, Qualcomm, October 2011, http://www.qualcomm.com/media/documents/files/hspa-evolution-enhanced-mobile-broadband-for-all.pdf

http://www.4gamericas.org/documents/4G Americas_3GPP_Rel-10_Beyond_2.1.11 .pdf



http://www.3gpp.org/ftp/Information/WORK_PLAN/Description_Releases/Rel-10_description_20120124.zip






http://www.agilent.com/find/pxt

http://www.qualcomm.com/media/documents/files/hspa-evolution-enhanced-mobile-broadband-for-all.pdf


















Agilent Product References

E5515E (8960) and E6703H W-CDMA/HSPA lab application software

with 42 Mbps DC-HSDPA throughput www.agilent.com/find/e5515e

www.agilent.com/find/e6703h

E6621A PXT combined with 8960 for reliable inter-RAT handovers

between all technologies www.agilent.com/find/pxt

Interactive functional test (IFT) software for stress tests with

simultaneous UE activities and operator acceptance tests www.agilent.com/find/ift

http://www.agilent.com/find/e5515e

http://www.agilent.com/find/e6703h

http://www.agilent.com/find/pxt

http://www.agilent.com/find/ift






Additional Slides






Enabling Market Drivers – HSPA+ Advanced

Simple

upgrades

Less

battery drain

More data

Less voice

LTE

Spectrum

Existing HSPA Network HSPA+ Advanced

Network






Enabling Market Drivers – LTE-Advanced

Existing LTE Network LTE-Advanced

Network Higher data rates

More

user capacity

Mobile performance

like fixed Internet






Benefits and Goals from 3GPP

Benefit MC MIMO CPC ECF

Improved spectral

efficiency X X

More capacity X

Higher data rates X X

Improved user

experience X

Improved battery

life X X X

Benefit RxD LB MP

Improved spectral efficiency X

More capacity when needed X

Enhanced user experience X

HSPA+ (Rel-7, 8, 9, 10)

HSPA+ Advanced (Rel-11)

LTE (Rel-8, 9)

• Competitive 3G system

• IP-only data traffic

• 4x increased spectral efficiency

• 10x users per cell

• DL / UL data rates: > 100 Mbps / 50 Mbps

• Latency comparable with fixed broadband Internet

• Interworking with other radio access systems

• Flexible frequency band allocations

LTE-Advanced (Rel-10)

• Align with the requirements of IMT-Advanced

• Global functionality and roaming

• Interworking with other radio access systems

• Enhanced peak data rates: 100 Mbps for high mobility and 1 Gbps for low mobility

MC: Multi-carrier, CPC: Continuous Packet Connectivity, ECF: Enhanced CELL_FACH, RxD: 4 Receiver Diversity, LB: Load Balancing between NodeBs, MP: Multipoint transmission






Deployment Challenges

HSPA+ Advanced

• Continuous add-ons to improve existing technologies sometimes result in more complex technical implementation due to the need for backwards compatibility with existing network behavior

• Several improvements beyond HSPA are required before data rates comparable to LTE are achievable

• Existing backhaul can limit actual data rates

LTE-Advanced

• Capital to build new infrastructure

• Spectrum bundles > 10 MHz

• Learning curve for a new technology

• Interworking with existing technologies (i.e. inter-RAT handovers)






Market Predictions

HSPA+ LTE

HSPA+

and

LTE

Past Now Future

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