R&S CMW500 radio communication tester from Rohde & Schwarz.

Rohde & Schwarz offers a test solution for Bluetooth’s new Channel Sounding function

  • Rohde & Schwarz announces a solution for measuring Bluetooth signals that support the new Channel Sounding feature, which aims to significantly improve the positioning accuracy of Bluetooth devices.
  • The solution, which implements the R&S CMW500 series broadband radio communication tester, will be presented in Nuremberg, Germany, at the Embedded World Exhibition & Conference from April 9 to 11, 2024.

Bluetooth is widely used by electronic devices for positioning applications. The soon-to-be-released Channel Sounding functionality aims to significantly improve the accuracy of position measurement of devices via Bluetooth wireless communication technology. Their position could be determined with an accuracy of less than 50 cm.

In addition to improving location accuracy, Channel Sounding is expected to consume less energy than existing Bluetooth location services, while offering enhanced security.

This enhanced accuracy will be particularly appreciated inside buildings, for applications such as asset tracking in factories or warehouses, secure access to buildings or vehicles, real-time localization…

To exploit enhanced localization functions, hardware modifications must be made to Bluetooth devices to support a new physical layer. To develop chips and electronic devices implementing the Channel Sounding function, it is therefore necessary to carry out measurements on the signals that enable these new functionalities to be deployed. Rohde & Schwarz has therefore developed options that enable its R&S CMW500 test platform to perform the appropriate RF physical layer measurements.