罗德与施瓦茨RSCMWrun-Batterylifemeasurements-罗德与施瓦茨RS

罗德与施瓦茨R&S

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罗德与施瓦茨RSCMWrun-Batterylifemeasurements

With more and more apps running on smartphones, there is a risk that voice calls could totally drain

T&M solution

With more and more apps running on smartphones, there is a risk that voice calls could totally drain the batteries of these mobile devices. Features such as DRX (the power saving mode in LTE) should greatly improve power consumption, but the application behavior needs to be tested and analyzed in a controlled emulated network environment.

Battery life testing with IP analysis, fully automated with R&S®CMWrun

The R&S®CMWrun CMW-KT051 collects samples from the R&S®NGMO2 power supply and displays the current drain on the phone over time. The x-axis shows the momentary current that the phone is drawing, and the y-axis represents the time. Specific signaling trigger events (e.g. LTE attach or IMS registration) have been implemented, providing more details (i.e. more samples). These are displayed in the current drain diagram. The current drain diagram is also correlated to events at the IP level by using IP traffic analysis (R&S®CMW-KM051), which indicates which app or IP flow impacts the battery lifetime.

The setup shown here can also be extended to include the R&S®UPV audio analyzer. It is then possible to monitor the power consumption by establishing a VoLTE call, and to measure audio quality with and without DRX.

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