1. Analyse Assure Accelerate TM Testing WCDMA mobiles under real-life network conditions Rev 2.12

2. Analyse Assure Accelerate TM Agenda Spirent Communications Overview Spirent WCDMA Test Solutions Overview Operator Challenges and Solutions  WCDMA vs GSM  Beyond Minimum Conformance Testing  Real-life UE test requirements  Fully automated testing with no scripting  Inter-Operability Testing  Applications and Services Testing Summary

3. Analyse Assure Accelerate TM Spirent Communications Overview

4. Analyse Assure Accelerate TM 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

5. Analyse Assure Accelerate TM Spirent Business Portfolio LSE / NYSE Listed 2004 revenue: £475 million ($870 million) Broadband Wireless and Positioning Performance Analysis Solutions Division Service Assurance Solutions Division Field Test Broadband Network Products Systems Spirent Communications Spirent plc

6. Analyse Assure Accelerate TM 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

7. Analyse Assure Accelerate TM Spirent Communications’ Market Focus 3G wireless deployment Wireless location based services Broadband access xDSL Cable Fiber Access Networks IPv6 Metro Ethernet VoIP IP/MPLS core switching & routing 3G wireless infrastructure Metro/Core Networks 10/100 to Gigabit Ethernet upgrade eCommerce & Web applications - performance & security Storage area networks IP telephony Wireless LANs IPv6 Enterprise Networks  3G wireless deployment  3G wireless deployment

8. Analyse Assure Accelerate TM Applications R&D Design Verification Field Trials DeploymentApplications R&D Design Verification Field Trials Deployment Customers Technology Suppliers (ASICs/stacks) Mobile and Infrastructure Manufacturers Network Operators Test LabsCustomers Technology Suppliers (ASICs/stacks) Mobile and Infrastructure Manufacturers Network Operators Test Labs Spirent Wireless & Positioning Technologies IS-95 / CDMA2000 1X / 1xEV-DO UMTS / WCDMA GPS / Positioning WLANTechnologies IS-95 / CDMA2000 1X / 1xEV-DO UMTS / WCDMA GPS / Positioning WLAN Experience A decade of leadership in RF and wireless testExperience

9. Analyse Assure Accelerate TM 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:

10. Analyse Assure Accelerate TM Enabling 3G Success - In Practice Leading Carriers Leading Test Houses

11. Analyse Assure Accelerate TM Spirent WCDMA Test Solutions Overview

12. Analyse Assure Accelerate TM Spirent WCDMA Test Solutions U-ATS fully-automated Conformance Testing and Performance Analysis System  TS 34.121 RF and RRM conformance testing  UE performance characterization AirAccess WCDMA network emulator  Real-time state machine  6 cells  GSM capability for inter-RAT handover testing

13. Analyse Assure Accelerate TM Spirent U-ATS A single turnkey system that can provide both RF, RRM and HSDPA conformance and performance testing Multi Region (Operating Band) test system (I, II, V and VI) #1 in validated tests available for Region 2 Provides a wide variety of performance and automation tools for quick and easy UE benchmarking Unique Attributes A WCDMA test solution which addresses the needs of both conformance and performance testing markets

14. Analyse Assure Accelerate TM U-ATS Performance features Flexibility to create a wide variety of user-defined real world tests for UE benchmarking:  Ability to adjust and vary parameters, levels and test criteria  Characterize UE performance over a sweep of parameters (sweep to graph feature for each test)  Ability to seek and identify performance breakpoints using characterization tests Industry leading automation capability for easy UE benchmarking  UE remote control  External equipment control  Fine tuning of execution parameters

15. Analyse Assure Accelerate TM Operator Challenges and Solutions WCDMA is not GSM!

16. Analyse Assure Accelerate TM WCDMA is not GSM! Most operators deploying 3G networks have a strong GSM background GSM cells have a fixed capacity  GSM mobiles do not impact network capacity or other users WCDMA cells have a variable capacity  A badly-performing WCDMA mobile adversely impacts cell capacity and the experience of other users

17. Analyse Assure Accelerate TM WCDMA is not GSM! In order to successfully deploy 3G networks and services it is vital to ensure that network performance is not impaired by poor mobile performance The only way to do this is thorough mobile performance analysis – way beyond minimum 34.121 conformance testing!

18. Analyse Assure Accelerate TM Operator Challenges and Solutions Going Beyond Minimum Conformance Testing…

19. Analyse Assure Accelerate TM … of little use in characterizing UE performance under real network conditions. Beyond Minimum Conformance … Challenge: A traditional validated Conformance Test System must be “locked” & inflexible for Conformance testing…

20. Analyse Assure Accelerate TM Spirent Solution Spirent Solution: Spirent’s U-ATS uses a single hardware platform to run two separate application modes. Validated Conformance Testing Flexible, configurable Performance testing Beyond Minimum Conformance …

21. Analyse Assure Accelerate TM Spirent Solution Spirent Solution: Spirent’s U-ATS uses a single hardware platform to run two separate application modes. Validated Conformance Testing Beyond Minimum Conformance …

22. Analyse Assure Accelerate TM Spirent Solution Spirent Solution: Spirent’s U-ATS uses a single hardware platform to run two separate application modes. Flexible, configurable Performance testing Beyond Minimum Conformance …

23. Analyse Assure Accelerate TM Beyond Minimum Conformance … Isn’t 34.121 testing enough? No!

24. Analyse Assure Accelerate TM Example:Conformance Example: In Conformance mode, you might run the Reference Sensitivity Test from the 34.121 test spec… Beyond Minimum Conformance …

25. Analyse Assure Accelerate TM Performance …but in Performance mode, you can characterize a UE’s Reference Sensitivity as a function of DPCH... Beyond Minimum Conformance …

26. Analyse Assure Accelerate TM …then store the results in a database and graph them… Beyond Minimum Conformance …

27. Analyse Assure Accelerate TM … and include them in an Adobe Acrobat report… Beyond Minimum Conformance …

28. Analyse Assure Accelerate TM Beyond Minimum Conformance … …automatically!

29. Analyse Assure Accelerate TM About Minimum Conformance… My phone may not work properly, but I’m happy because it passed Minimum Conformance Tests!

30. Analyse Assure Accelerate TM Operator Challenges and Solutions Real-life UE test requirements

31. Analyse Assure Accelerate TM Real-life UE test requirements Operators are on a steep WCDMA deployment learning curve New problems are being found outside traditional GSM experience. Testing on live or trial networks does not allow the fine control needed to ascertain the root causes of these problems Operators are looking for test tools to help them identify these root causes. Conformance tests do not help! Detailed UE evaluation and benchmarking is critical to WCDMA network capacity and performance Information gained directly from 3G operators:

32. Analyse Assure Accelerate TM Create performance tests focusing on characterizing the RF performance of terminals in real-life conditions Allow an operator to quantify the performance difference between various UE implementations Provide the flexibility to tailor tests for different operator’s specific requirements Real-life UE test requirements Spirent Solution

33. Analyse Assure Accelerate TM Demodulation with a single radio link Demodulation with soft handover Adjacent Channel Interference Receiver Sensitivity Maximum Output Power Measurement Accuracy Downlink Outer Loop Power Control Real-life UE test requirements Some test areas of concern:

34. Analyse Assure Accelerate TM Real-life UE test requirements Asymmetric data rate testing (e.g. 384 DL, 64 UL) to match real networks Typical Urban multi-path propagation channels  More sophisticated 12-path fading models Enable Downlink Power control for tests based on TS 34.121 Section 7  Measure average downlink DPCH Ec/Ior as a test result  See which UEs require the lowest average DL DPCH levels to maintain a specified quality level Vary Ior/Ioc (signal/noise ratio) Define own pass/fail limits for tests Divergences from TS 34.121

35. Analyse Assure Accelerate TM Real-life UE test requirements How do you determine: Which UE will perform best when far from the base station? U-ATS Reference sensitivity characterization test! Which UE will perform best in the presence of interference? U-ATS Interferer characterization tests! Which UE will impact network capacity least? U-ATS Downlink Power Control average DPCH_Ec/Ior tests! Which UE will perform best in real-life fading conditions? U-ATS customized fading tests! Which UE will give the longest battery life in standby and talk time? U-ATS Energy Management tests!

36. Analyse Assure Accelerate TM Operator Challenges and Solutions Fully automated testing with no scripting

37. Analyse Assure Accelerate TM Designed with Efficiency in mind Challenge: Some equipment and systems require an “expert” a steep learning curve system maintenance that quickly becomes an exercise in code control

38. Analyse Assure Accelerate TM Designed with Efficiency in mind Spirent Solution TestDrive UMTS Spirent Solution: U-ATS is automated by TestDrive UMTS software…an intuitive, “quick and easy-to-learn” test executive. It requires no scripting, even for automation. Time is used testing, rather than developing, debugging and maintaining test scripts.

39. Analyse Assure Accelerate TM Designed with Efficiency in mind Spirent Solution Spirent Solution: Spirent’s X-API feature allows control of environmental equipment…no matter what brand or model. …and automates control of the UE if resets are necessary.

40. Analyse Assure Accelerate TM Designed with Efficiency in mind TestDrive Application is controlled remotely using a well-defined protocol over the TCP/IP socket connection TestDrive Application

41. Analyse Assure Accelerate TM Inter-Operability Testing Applications and Services Test

42. Analyse Assure Accelerate TM IOT, Applications & Services Testing Interoperability testing (IOT):  Network, cell, broadcast and radio channel configuration is a delicate combination that varies from operator to operator  UE interoperability with different network conditions and configurations needs to be tested in the lab prior to deployment Applications and services testing:  Test tools need to help identify issues with end-to-end applications to help manufacturers and operators identify field issues in the lab prior to deployment  A wide variety of circuit and high-speed packet services (over an IP connection) need to be tested

43. Analyse Assure Accelerate TM UE Performance Benchmarking Benchmarking UE functional performance:  With UEs at various stages - from early development to field trials and deployment, UE manufacturers need to test updated firmware and software of current models quickly  Network operators want to benchmark performance and functions of multiple UE models (and often multiple versions of each model) accurately and repeatably to help understand deployment issues  Regional and country-specific variations require a high degree of flexibility in the test system

44. Analyse Assure Accelerate TM A real-time “active” state machine with response times representative of real networks Emulation of virtually any multi- cell deployment scenario (up to 6 cells, 3 nodeBs and 2 RNCs) Spirent Solution - AirAccess WCDMA AirAccess WCDMA is fully-configurable, multi-cell “network in a box” that provides: Quick and easy setup without the need for scripts or programming Emulates circuit and high-speed packet services, including QoS testing

45. Analyse Assure Accelerate TM AirAccess WCDMA Internet Core Network RNC2 UE Cell 1 RNC1 NodeB Cell 2 Cell 1 Cell 2 NodeB Cell 1 Cell 2 AirAccess WCDMA

46. Analyse Assure Accelerate TM AirAccess WCDMA GUI

47. Analyse Assure Accelerate TM AirAccess WCDMA For IOT:  AirAccess WCDMA creates a real-time, multi-cell, multi- frequency network in the lab with simple setup and recall of complex network configurations, call processing scenarios, channel setup and signalling sequences For testing new applications and services:  AirAccess WCDMA provides comprehensive emulation of high- speed data services (including QoS testing) without need for scripting or programming For benchmarking UE performance in the lab:  AirAccess WCDMA enables manufacturers and network operators to test under user-defined proprietary network conditions  AirAccess is easy to configure for regression testing and establishing a baseline of UE software/firmware versions

48. Analyse Assure Accelerate TM Summary

49. Analyse Assure Accelerate TM Summary Beyond Minimum Conformance testing Conformance Mode AND Performance Mode testing UE performance analysis under real-life network conditions Flexible TS 34.121-based tests Custom tests aimed at quantifying UE performance differences Full automation with no scripting or programming UE inter-operability testing Applications and Services testing

50. Analyse Assure Accelerate TM All trademarks mentioned herein are the property of their respective owners Copyright © 2004 Spirent Communications Inc. Analyse |Assure |Accelerate ™