Testing the antenna performance of GNSS signals such as GPS, GLONASS, Beidou, Galileo and MBS is key to location accuracy performance of a mobile device. To address the testing need for A-GNSS services, Rohde & Schwarz and Bluetest partner in creating test concepts for OTA antenna measurements. The two companies integrate the R&S LBS Server, a Software component running on the R&S CMW500 wideband radio communication tester, and the Bluetest OTA test solution for A-GNSS systems based on Bluetest’s RTS65 reverberation chamber and Bluetest’s Flow measurement software.

In this test setup, the R&S LBS  Server controls the Rohde & Schwarz base station simulator R&S CMW500 for LTE, WCDMA and GSM and uses the R&S SMBV100B vector signal generator for simulation of GNSS and MBS signals. A simple and straightforward upgrade of the setup for 5G will be available soon, making sure that investments are protected and most relevant standards can be tested with the same system.

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The R&S LBS Server is an essential part of the R&S TS8991 OTA Performance Test System. This cooperation between Rohde & Schwarz and Bluetest marks the first time that the R&S LBS Server, used here as a software tool on R&S CMW500, is available also for third parties.

Alexander Pabst, Vice President Systems and Projects at Rohde & Schwarz, says: “We are delighted to collaborate with Bluetest to contribute with our test and measurement expertise to OTA 4G/3G/GSM and GNSS technology development. With a strong global footprint for location based services LBS and close cooperation with partners, Rohde & Schwarz is committed to accompanying the evolution path from OTA testing for GPS, GLONASS, BeiDou and Galileo with innovative test and measurement solutions.”

Robert Rehammar, Bluetest CTO, confirms; “The addition of A-GNSS measurements means that the full range of wireless technology in a modern cellular device can be verified with just one test solution. Bluetest has enjoyed the close cooperation with Rohde & Schwarz on this project, leading to a very strong joint solution and customer offering.”