analyze assure accelerate tm spirent communications overview
TRANSCRIPT
Analyze Assure AccelerateTM
Spirent Communications Overview
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Who We Are… The Value We Add
• Spirent Communications is a worldwide provider of integrated performance analysis and service assurance systems for next-generation network technologies
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Spirent Business Portfolio
LSE / NYSE Listed 2004 revenue: £475 million ($870 million)
BroadbandBroadbandBroadbandBroadband
Wireless and PositioningWireless and PositioningWireless and PositioningWireless and Positioning
Performance AnalysisPerformance AnalysisSolutions DivisionSolutions Division
Performance AnalysisPerformance AnalysisSolutions DivisionSolutions Division Service Service
AssuranceAssuranceSolutions DivisionSolutions Division
Service Service AssuranceAssurance
Solutions DivisionSolutions Division
Field TestField TestField TestField Test
BroadbandBroadbandBroadbandBroadband
Network ProductsNetwork ProductsNetwork ProductsNetwork Products SystemsSystemsSystemsSystemsSpirent CommunicationsSpirent CommunicationsSpirent CommunicationsSpirent Communications
Spirent plcSpirent plcSpirent plcSpirent plc
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Spirent Communications
• One of the top 3 global telecom test companies
• 1,700 employees worldwide
• £252 million ($460 million) in annual revenue (2004)
• Headquartered in Rockville, Maryland, USA
• Parent company: Spirent plc LSE: SPT / NYSE: SPM
• More than 1,500 customers worldwide
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Spirent Communications’ Market Focus
3G wireless deployment
Wireless location based services
Broadband access
xDSL
Cable
Fiber
3G wireless deployment
Wireless location based services
Broadband access
xDSL
Cable
Fiber
Access NetworksAccess Networks
IPv6
Metro Ethernet
VoIP
IP/MPLS core switching & routing
3G wireless infrastructure
IPv6
Metro Ethernet
VoIP
IP/MPLS core switching & routing
3G wireless infrastructure
Metro/Core NetworksMetro/Core Networks
10/100 to Gigabit Ethernet upgrade
eCommerce & Web applications - performance & security
Storage area networks
IP telephony
Wireless LANs
IPv6
10/100 to Gigabit Ethernet upgrade
eCommerce & Web applications - performance & security
Storage area networks
IP telephony
Wireless LANs
IPv6
Enterprise NetworksEnterprise Networks
3G wireless deployment 3G wireless deployment
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ApplicationsApplicationsR&D,
Design VerificationField TrialsDeployment
ApplicationsApplicationsR&D,
Design VerificationField TrialsDeployment
CustomersCustomersMobile and Infrastructure Manufacturers
Network OperatorsTechnology Suppliers (ASICs/stacks)
Test Labs
CustomersCustomersMobile and Infrastructure Manufacturers
Network OperatorsTechnology Suppliers (ASICs/stacks)
Test Labs
Spirent Wireless & Positioning
TechnologiesTechnologiesUMTS / WCDMA
IS-95 / CDMA2000 1X / 1xEV-DOWLAN
GPS / Positioning
TechnologiesTechnologiesUMTS / WCDMA
IS-95 / CDMA2000 1X / 1xEV-DOWLAN
GPS / Positioning
ExperienceExperienceA decade of leadership
in RF and wireless test
ExperienceExperienceA decade of leadership
in RF and wireless test
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• UMTS 3GPP
• RAN 4
• RAN 5
• GERAN 3
• CDMA CDG. Member since 1996 3GPP2. Chair of (IS-2000) Signaling Conformance Working
Group
Spirent Wireless & Positioning
• Others PTCRB OMA Ad-hocs
• GCF SG CAG
Spirent is a key contributor to industry standards:
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Enabling 3G Success - In Practice
Leading Carriers
Leading Test Houses
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Air Access for HSDPA
Rev. 1.0
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The information contained in this presentation is considered to be confidential and proprietary
information of Spirent Communications Inc. and is subject to the terms and conditions of the Non-
disclosure agreement (NDA) between the recipient(s) or recipient's organization and Spirent
Communications Inc.
Notice of Confidential Information
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High Speed Data Market Snapshot
• To fulfill the “promise of 3G,” carriers must deliver high speed data User experience that far exceeds 2G
• HSDPA is what the market is waiting for …
… and it’s right around the corner!
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Getting to HSDPA
• Carriers are just starting meaningful commercialization of R99…
• …but there are still a lot of challenges related to R99: Inter-RAT handovers
Handset performance characterization
Energy management
• At the same time, HSDPA deployment schedules are accelerating.
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HSDPA Functional Testing
• HSDPA is significantly different from R99
R99 HSDPA
Largely focused on dedicated channel (DCH)
Shared channel (HS-DSCH)
Fast power control Fast rate control
QPSK modulation Adaptive modulation
Slow retransmissions, high latency Fast retransmissions, low latency
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HSDPA Functional Testing
• There are a limited number of HSDPA RF Conformance tests TS34.121 Section 9 – six minimum performance tests (6/05)
• BUT… Key HSDPA aspects are not conducive towards conformance testing MAC-hs scheduler – not defined in the standard
Performance is highly dependent on traffic load
Mobility management
• HS ↔ HS handovers (intra and inter-cell)
• HS ↔ R99, 2G handovers
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HSDPA Functional Testing
• Conformance comprises 10-20% of an HSDPA test plan Static conditions for basic functional verification
• For the rest, a flexible network emulator is required Capable of capturing true real-world scenarios
Maintaining ease-of-use
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HSDPA Functional Testing
Demodulation of HS-DSCH
Demodulation of HS-DSCH HS-SCCH
Detection
HS-SCCH Detection
Reporting of CQIReporting of CQI
Parametric testsParametric tests
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HSDPA Functional Testing
Demodulation of HS-DSCH
Demodulation of HS-DSCH HS-SCCH
Detection
HS-SCCH Detection
Reporting of CQIReporting of CQI
Adversarial Testing
Adversarial Testing
Dynamic environment
testing
Dynamic environment
testing
R99 upshift/downshift
R99 upshift/downshift
HSDPA ↔ HSDPA handovers
HSDPA ↔ HSDPA handovers
HARQ TestingHARQ Testing
Throughput testing
Throughput testing
Client/Application Testing
Client/Application Testing
Inter-TTI Distance
Inter-TTI Distance
MAC-d TestingMAC-d Testing
MAC-hs Testing
MAC-hs Testing
Energy Management Testing
Energy Management Testing
HSDPA ↔ R99 handovers
HSDPA ↔ R99 handovers
Parametric testsParametric tests
HSDPA RAB reconfiguration
HSDPA RAB reconfiguration
Multi-RAB – PS+CS (HSDPA+voice)
Multi-RAB – PS+CS (HSDPA+voice) Cell loading tests
Cell loading tests
Vary scheduler algorithm
Vary scheduler algorithm
High layer interaction
High layer interaction
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Spirent’s HSDPA Expertise
• First-to-market with EV-DO test solutions
• Industry leader in handset performance testing
• Flexible network emulator platforms
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SR3420 WCDMA Network Emulator
• SR3420 is our new WCDMA network emulator platform designed specifically for HSDPA
• High fidelity RF (based on SR5500) Covers all operating bands
• Rich roadmap of field upgradeable features 14 Mbps (Category 10)
HSUPA (Release 6)
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Moving to HSDPA
SR3410 SR3420Phase 1
Up to six R99 cells One HSDPA cell
One HSDPA cell + five additional R99 cells
Phase 2 (2Q06)SR3420
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Air Access for HSDPA
• AirAccess provides a single common interface to SR3410 (R99) and SR3420 (HSDPA) Build upon familiar and flexible GUI
Seamless addition of HSDPA functionality
SR3410
SR3420
ETH Hub
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Air Access for HSDPA
• HS-DSCH programmability Transport block size
Number of HS-PDSCH codes
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Air Access for HSDPA
• HSDPA Code Settings
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Air Access for HSDPA
• MAC-hs configuration CQI override
Scheduler selection (future)
Multi-user traffic simulation (future)
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Air Access for HSDPA
• MAC-hs statistics
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Air Access HSDPA Roadmap
• Release 1 Single cell support for 3.6 Mbps (Categories 1-6, 11, 12)
Test Themes: Functional verification, throughput testing
• HS-DSCH and HS-SCCH programmability
• Transport block, inter-TTI distance, HARQ configurability
• MAC-hs and CQI statistics
Interactive mode Section 9 testing (and beyond!)
• Full support for Fixed Reference Channels
Automated Section 9 testing to follow in December ’05 (U-ATS)
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Air Access HSDPA Roadmap
• Release 2 - January 2006 Adds multi-RAB configurations
Test Themes: R99 coexistence, L2 test, Adversarial, Dynamic Environment
• Release 3 - April 2006 Adds multi-cell R99
Supports 7.2 Mbps (Category 8)
Test Themes: Mobility testing, Application testing, Energy management
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Summary
• HSDPA is fundamentally different from R99 Unique set of test requirements
• Conformance covers only 10-20% of an HSDPA test plan Air Access for HSDPA is also designed to address the rest
• Functionality constructed around key test themes Functional verification, throughput, mobility, adversarial, …
• Release 2 - January 2006
• Release 3 - April 2006
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All trademarks mentioned herein are the property of their respective owners
Copyright © 2004 Spirent Communications Inc.
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