R&S®CMWrun - Audio performance testing solution

Sequencer Software Tool

T&M solution

The R&S®CMWrun software is the right overall automation tool for audio/speech performance testing of VoLTE and legacy standards. In this setup, the R&S®CMW500 callbox tester acts as a 2G/3G and LTE network emulator. It provides integrated IMS service support plus an audio board with the standard specific speech codecs for voice calls. The R&S®UPV audio analyzer supports PESQ/POLQA algorithms for objective audio analysis.

Research and development testing

With just a few mouse clicks, the user can define a testing campaign that includes the key signaling parameters and conditions in an LTE network with their possible impact on the audio quality and user experience. Signaling parameters that are integrated into the R&S®CMW500 and can be configured via R&S®CMWrun include: integrated IMS server to establish a voice or video call, RoHC, SPS, TTI bundling, dedicated bearer and QoS, IP environment (IPv4 and IPv6) delay, jitter, packet losses and fading profiles.

The audio testing solution is available in the following standard-specific R&S®CMWrun packages:

  • R&S®CMW-KT053: for WCDMA and GSM
  • R&S®CMW-KT055: for LTE/VoLTE
  • R&S®CMW-KT058: for CDMA2000®

The following option is mandatory:

  • R&S®CMW-KT051: to remotely control the R&S®UPV audio analyzer

Carrier acceptance testing

The R&S®CMWrun also covers carrier acceptance testing, extending the R&D test coverage beyond the industry standards’ test plans.

The following R&S®CMWrun packages are available as turnkey solutions for audio performance acceptance testing:

  • VZW, requires R&S®CMW-KTF11
  • AT&T, requires R&S®CMW-KTF12
  • CMCC, requires R&S®CMW-KTF13 (Validation ongoing)
  • ICHU, requires R&S®CMW-KTF15

At a glance

R&S®CMWrun concept, features, interfaces and applications

Today the R&S®CMW500 is the leading, most popular multistandard platform for UE testing. It is used by network operators, test houses, handset vendors and chipset manufacturers alike. The R&S®CMWrun automation software meets all requirements for executing remote control test sequences on the R&S®CMW500 in R & D, quality assurance, production and service for both current and future wireless equipment.

The software engine is based on the execution of test DLLs (plug-in assemblies). This architecture allows easy and straightforward configuration of test sequences without requiring specific programming knowledge of how to remotely control the instrument. It also provides full flexibility when configuring parameters and limits for the test items provided in the standard-specific R&S®CMWrun package options.

The intuitive graphical user interface makes it simple for users to test wireless devices for compliance with the 3GPP protocols for various technologies.

The applications are diverse. For example, in combined user experience tests, synchronized markers show the IP throughput and current drain at a glance. During analysis, event markers help the user optimize IP throughput and battery life.

At the end of the test, an easy-to-read test report containing limits, test results and verdict is generated. The report is available in csv, txt, xml and pdf format.

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