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HOW to EVALUATE FIELD TEST PERFORMANCE of a CDMA2000 HANDSET Jeffrey Lai, P.Eng

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HOW to EVALUATE FIELD TEST PERFORMANCE of a CDMA2000 HANDSET Jeffrey Lai, P.Eng HOW TO EVALUATE FIELD TEST PERFORMANCE OF A CDMA2000 HANDSET by Jeffrey Lai, P.Eng. B.A.Sc., University of British Columbia, 1995 PROJECT SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF ENGINEERING In the School of Engineering Science © Jeffrey Lai 2003 SIMON FRASER UNIVERSITY May 2003 All rights reserved. This work may not be reproduced in whole or in part, by photocopy or other means, without permission of the author. APPROVAL Name: Jeffrey Lai Degree: Master of Engineering Title of Project: How to Evaluate Field Performance of a CDMA2000 Handset Examining Committee: Chair: Dr. Glenn Chapman Professor School of Engineering Science Simon Fraser University Dr. Ljiljana Trajkovic Senior Supervisor Associate Professor School of Engineering Science Simon Fraser University Dr. Steve Hardy Supervisor Professor School of Engineering Science Simon Fraser University Mr. Aries Wong External Examiner Project Manager – Hardware Design Nokia Mobile Phones Vancouver Date Approved: ii ABSTRACT With the ever-increasing demand of high-speed wireless data from the mobile users in North America, a wide range of Third Generation (3G) Code Division Multiple Access 2000 (CDMA2000) mobile phones will be launched. It is important that all CDMA2000 mobile stations go through a well defined, complete, and thorough test before launching out into the market. One critical test activity for this purpose is field test. The goal of this project is to discuss the importance of field test activities, to demonstrate the evaluation of CDMA2000 mobile phone field performance, to implement four field test cases for verifying the CDMA2000 voice service, and, finally, to execute the field test cases. We analyze the four field test cases, and illustrate the methodology of test case design for the research and development (R&D) field test. In this project, we introduce the CDMA technology and the added benefits provided by the 3G CDMA2000. We discuss the testing methodology within a software engineering model, and differentiate the field test from other testing activities. We also show that field test is an important and high priority task in R&D projects. It is mandatory to include field test in any handset development project. We elaborate on the details of field test activities, which include test planning, test tools application, test sites selection, test case design, and test results analysis. We illustrate the typical field test analysis required for the R&D iii field test. In particular, the R&D field test results confirm that the message flow complies with the IS-2000.5 Rev.0 Upper Layer (L3) Signaling Standard [1]. iv DEDICATION This project is dedicated to my coworkers and supervisors who have worked with me for the past few years, to the companies that I have worked for and their sponsorship of my Master degree, and to my family and friends who have encouraged me for pursuing my degree. v ACKNOWLEDGEMENTS I would like to thank my senior supervisor, Dr. Ljiljana Trajkovic, for being my advisor, and for her continuous support, guidance, and supervision. Thank you to those who have supported and encouraged me, especially to those who have introduced me to the R&D testing, and CDMA technology. I would like to thank Dr. Glenn Chapman, Dr. Stephen Hardy, and Mr. Aries Wong for serving on the examining committees for my M.Eng. project. Last, but not least, I would like to thank all the professors whose classes I attended, at both SFU and UBC. vi TABLE OF CONTENTS Approval.................................................................................................ii Abstract ................................................................................................iii Dedication...............................................................................................v Acknowledgements.................................................................................vi Table of Contents..................................................................................vii List of Figures....................................................................................... ix List of Tables......................................................................................... xi Acronyms and Abbreviations................................................................ xii 1. Introduction .....................................................................................1 2. CDMA technologies..........................................................................4 2.1 CDMAOne................................................................................4 2.1.1 IS-95 based 2G network.......................................................4 2.1.2 2G services...........................................................................5 2.1.3 2G limitations.......................................................................6 2.2 CDMA2000..............................................................................7 2.3 3G handsets............................................................................9 3. Verification and validation..............................................................11 3.1 Verification process implementation......................................12 3.1.1 Test the requirements.........................................................13 3.1.2 Test the functional design ..................................................13 3.1.3 Test the internal design......................................................13 3.2 Validation process implementation........................................14 3.2.1 Unit testing: level 0.............................................................14 3.2.2 Module testing: level 1........................................................14 3.2.3 Integration testing: level 2 ..................................................15 3.2.4 Component testing: level 3 .................................................15 3.2.5 Release testing: level 4........................................................15 3.2.6 System testing: level 5........................................................16 3.3 Field test in W-model.............................................................16 4. Field test activities..........................................................................18 4.1 Purpose of field test (what and why?) ....................................18 4.2 Time phase for field test (when?) ...........................................19 4.3 Field test engineers (who?).....................................................20 4.4 Focus of field test (how?) .......................................................21 4.4.1 R&D field test.....................................................................21 4.4.2 Pre-acceptance field test.....................................................23 4.5 Choosing test sites for field test (where?)...............................25 4.5.1 Target market and carrier...................................................25 4.5.2 Network infrastructure .......................................................26 4.5.3 Band selection....................................................................27 4.5.4 Protocol in use....................................................................27 4.5.5 Test cities ...........................................................................28 vii 4.5.6 Selection of drive routes.....................................................31 5. Data collection and test results analysis........................................34 5.1 Test Case 1: Mobile originated voice call................................35 5.1.1 Objective.............................................................................35 5.1.2 Test steps ...........................................................................35 5.1.3 Expected results and diagrams ..........................................36 5.1.4 Results and loggings...........................................................38 5.2 Test Case 2: Soft handoff – add to active set..........................47 5.2.1 Soft handoff background....................................................47 5.2.2 Objective.............................................................................51 5.2.3 Test steps ...........................................................................51 5.2.4 Expected results and diagrams ..........................................52 5.2.5 Results and loggings...........................................................54 5.3 Test Case 3: Soft handoff – drop from active set....................62 5.3.1 Objective.............................................................................62 5.3.2 Test steps ...........................................................................62 5.3.3 Expected results and diagrams ..........................................63 5.3.4 Results and loggings...........................................................64 5.4 Test Case 4: Soft handoff – maximum active set....................64 5.4.1 Objective.............................................................................64 5.4.2 Test steps ...........................................................................65 5.4.3 Expected results and diagrams ..........................................65 5.4.4 Results and loggings...........................................................65 6. Conclusions....................................................................................66 References............................................................................................68
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