Rohde & Schwarz Supports Wake Up Signal Test for Power Efficiency in NB-IoT Devices

March 19, 2020 Perry Cohen

Rohde & Schwarz, along with CommSolid, a cellular IoT company, have developed tests and measurement equipment to show the effectiveness of NB-IoT devices. The new test features wake up signal to reduce the power consumption of the devices.

Wake up signal is a special paging signal sent from an NB-IoT base station to specific NB-IoT devices, informing the devices to wake up the main receiver, in preparation for receiving paging data. Devices remain in an idle mode until asked to decode the a downlink control channel for paging.

The test functions have recently been implemented on an R&S CMW290 functional radio communication tester, according to the company.

Per the company, the reduction of power consumption in the NB-IoT devices is imperative to increase a device’s reliable active life.

Only Rohde & Schwarz radio communication testers have implemented the many new NB-IoT features introduced with 3GPP Releases 14 and 15, R&S noted in a press release. The R&S CMW500 and R&S CMW290 both introduced wake up signal support, among other Release 15 features, with the most recent firmware releases.

For more information, visit

About the Author

Perry Cohen

Perry Cohen, associate editor for Embedded Computing Design, is responsible for web content editing and creation in addition to podcast production. He also assists with the publication’s social media efforts which include strategic posting, follower engagement, and social media analysis. Before joining the ECD editorial team, Perry has been published on both local and national news platforms including (Phoenix), (Phoenix),, Cronkite News, and MLB/MiLB among others. Perry received a BA in Journalism from the Walter Cronkite School of Journalism and Mass Communications at Arizona State university. He can be reached by email at <a href=""></a>. Follow Perry’s work and ECD content on his twitter account @pcohen21.

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