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Transcript of 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
© 2012 Agilent Technologies
Wireless Communications
2 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
Agenda
Introduction
FDD Technology Evolution
Technology Overview
Market Overview
The Future for Multiformat UE Developers
Conclusions
© 2012 Agilent Technologies
Wireless Communications
3 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
Agenda
Introduction
FDD Technology Evolution
Technology Overview
Market Overview
The Future for Multiformat UE Developers
Conclusions
© 2012 Agilent Technologies
Wireless Communications
4 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
What
about
tomorrow?
HSPA+ and LTE: Living Together?
HSPA
HSPA+
LTE
• Higher data throughput
• More applications
HSPA+ and LTE - exciting
today
© 2012 Agilent Technologies
Wireless Communications
5 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
Agenda
Introduction
FDD Technology Evolution
Technology Overview
Market Overview
The Future for Multiformat UE Developers
Conclusions
© 2012 Agilent Technologies
Wireless Communications
6 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
© 2012 Agilent Technologies
Wireless Communications
7 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
Agenda
Introduction
FDD Technology Evolution
Technology Overview
Market Overview
The Future for Multiformat UE Developers
Conclusions
© 2012 Agilent Technologies
Wireless Communications
8 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
9 © 2012 Agilent Technologies
Wireless Communications
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
© 2012 Agilent Technologies
Wireless Communications
10 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
• Can be combined with MIMO
HSPA+
Rel-7 and Rel-8
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
8C HSDPA R11 168
8C + MIMO R11 336
DC-HSUPA R9 23
Mbps
HSPA+ Adv.
Rel-8 to Rel-11
© 2012 Agilent Technologies
Wireless Communications
11 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
12 © 2012 Agilent Technologies
Wireless Communications
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
• Can be combined with MIMO
LTE-Advanced Rel-10
Technology 3GPP DL UL
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
© 2012 Agilent Technologies
Wireless Communications
13 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
Agenda
Introduction
FDD Technology Evolution
Technology Overview
Market Overview
The Future for Multiformat UE Developers
Conclusions
© 2012 Agilent Technologies
Wireless Communications
14 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
Strong Industry Support
14
►
►
►
►
►
►
HSPA LTE
Networks
Launched 424 49
Committed 211 226
Devices 3,227 197
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
15 © 2012 Agilent Technologies
Wireless Communications
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
16 © 2012 Agilent Technologies
Wireless Communications
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
© 2012 Agilent Technologies
Wireless Communications
17 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
© 2012 Agilent Technologies
Wireless Communications
18 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
Agenda
Introduction
FDD Technology Evolution
Technology Overview
Market Overview
The Future for Multiformat UE Developers
Conclusions
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
Wireless Communications
© 2012 Agilent Technologies
Wireless Communications
20 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
21 © 2012 Agilent Technologies
Wireless Communications
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
© 2012 Agilent Technologies
Wireless Communications
22 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
23 © 2012 Agilent Technologies
Wireless Communications
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
© 2012 Agilent Technologies
Wireless Communications
24 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
25 © 2012 Agilent Technologies
Wireless Communications
Challenges: Inter-RAT, Battery Drain, Inter-Operability Operator Acceptance Test
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
26 © 2012 Agilent Technologies
Wireless Communications
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
© 2012 Agilent Technologies
Wireless Communications
27 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
Agenda
Introduction
FDD Technology Evolution
Technology Overview
Market Overview
The Future for Multiformat UE Developers
Conclusions
© 2012 Agilent Technologies
Wireless Communications
28 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
29 © 2012 Agilent Technologies
Wireless Communications
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
30 © 2012 Agilent Technologies
Wireless Communications
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
31 © 2012 Agilent Technologies
Wireless Communications
Additional Slides
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
32 © 2012 Agilent Technologies
Wireless Communications
Enabling Market Drivers – HSPA+ Advanced
Simple
upgrades
Less
battery drain
More data
Less voice
LTE
Spectrum
Existing HSPA Network HSPA+ Advanced
Network
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
33 © 2012 Agilent Technologies
Wireless Communications
Enabling Market Drivers – LTE-Advanced
Existing LTE Network LTE-Advanced
Network Higher data rates
More
user capacity
Mobile performance
like fixed Internet
© 2012 Agilent Technologies
Wireless Communications
34 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
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
© 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
35 © 2012 Agilent Technologies
Wireless Communications
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)
© 2012 Agilent Technologies
Wireless Communications
36 © 2012 Agilent Technologies
Wireless Communications
Greater insight. Greater confidence. Accelerate next-generation wireless.
Market Predictions
HSPA+ LTE
HSPA+
and
LTE
Past Now Future