User's Manual Part 1

Nomad User’s Manual
Copyright © Spirent Communications, Inc. 2013 5
8.10 Troubleshooting Incomplete Data ........................................................................................................... 103
8.11 Offline Scoring (Voice Quality Testing) .................................................................................................. 106
8.11.1 Creating a New Logging Session Using Offline Scoring .......................................................... 107
8.11.2 Retrieving Complementary Uplink Data for an Existing Logging Session ..................... 108
8.12 Scoring PESQ and POLQA............................................................................................................................. 109
8.12.1 Re-Score Files .......................................................................................................................................... 109
8.12.2 Batch Scoring ........................................................................................................................................... 111
8.12.3 Offline Scoring ......................................................................................................................................... 113
9 Voice Quality Configuration Options ................................................................................................................ 114
9.1 Voice Quality Test Calibration ................................................................................................................... 115
9.2 Audio Server Testing ..................................................................................................................................... 116
9.3 IMS Client Testing ........................................................................................................................................... 117
9.4 Mobile-to-Mobile Testing ............................................................................................................................. 117
9.5 Remote Unit Testing ...................................................................................................................................... 120
9.6 Landline Module Testing .............................................................................................................................. 122
9.7 Base Station Simulator Testing.................................................................................................................. 123
9.8 Head and Torso Simulator ........................................................................................................................... 125
9.8.1 HATS Three Channel Configuration ............................................................................................... 125
9.8.2 HATS Two Channel Configuration .................................................................................................. 127
9.9 Wideband Testing ........................................................................................................................................... 128
9.10 Multi-RAB Testing ........................................................................................................................................... 129
9.11 Voice Delay Testing ........................................................................................................................................ 131
10 Call Performance Configuration Options ................................................................................................... 135
10.1 Mobile Originated Testing ........................................................................................................................... 135
10.2 Mobile Terminated Testing ......................................................................................................................... 138
10.3 Mobile-to-Mobile Testing ............................................................................................................................. 141
Appendix A – Glossary ...................................................................................................................................................... 144
General Testing Terms ................................................................................................................................................ 144
Voice Quality Testing Terms ..................................................................................................................................... 144
Call Performance Testing Terms ............................................................................................................................. 145
Appendix B – Call Performance Events ..................................................................................................................... 146
Call Outcome Events ..................................................................................................................................................... 146
Device State Events ....................................................................................................................................................... 147
Appendix C – Confidence Interval Calculation ....................................................................................................... 148
Appendix D – PESQ Tools GUI Case Study ................................................................................................................ 149
Appendix E – Introduction to POLQA ......................................................................................................................... 153