analyze assure accelerate tm spirent communications overview

Analyze Assure AccelerateTM

Spirent Communications Overview


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


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


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


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


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


• 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:


Enabling 3G Success - In Practice

Leading Carriers

Leading Test Houses


Air Access for HSDPA

Rev. 1.0


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


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!


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.


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



• 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



• 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



Demodulation of HS-DSCH

Demodulation of HS-DSCH HS-SCCH

Detection

HS-SCCH Detection

Reporting of CQIReporting of CQI

Parametric testsParametric tests



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


Spirent’s HSDPA Expertise

• First-to-market with EV-DO test solutions

• Industry leader in handset performance testing

• Flexible network emulator platforms


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)


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



• 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



• HS-DSCH programmability Transport block size

Number of HS-PDSCH codes



• HSDPA Code Settings



• MAC-hs configuration CQI override

Scheduler selection (future)

Multi-user traffic simulation (future)



• MAC-hs statistics


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)


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


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

analyze assure accelerate tm spirent communications overview

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