CMX500 allows users to add 5G to LTE TS-LBS systems

Rohde & Schwarz says that users can add 5G to existing LTE TS-LBS (Location Based Services test systems) by adding the CMX500.

It has been introduced as wireless network operators roll out 5G NR in the mmWave spectrum, which is critical to ensure continued reliability of E911 calls and accurate determination of location in mobile devices.

Rohde & Schwarz has verified assisted-GPS (AGPS) performance in a commercial mobile device while simultaneously transferring data using 5G millimeter wave (mmW).

5G NR uses frequencies in the FR1 frequency range (less than 7.125GHz) and in the FR2 mmW frequency range (above 24GHz). FR2 creates challenges for mobile devices in terms of power consumption and heat, but  performance of critical services such as E911 emergency calls cannot be allowed to degrade when using this mmW spectrum.

When used together in the TS-LBS test system, the R&S CMX500 radio communication tester and R&S CMW500 wideband radio communication tester provide a seamless test platform for testing LTE, 5G NR FR1 and FR2. The R&S SMBV100B vector signal generator simulates the GPS L1 and L5, Galileo, GLONASS and BEIDOU satellite constellations for A-GNSS. Other positioning technologies that use barometric pressure sensors, Wi-Fi and/or Bluetooth are also available. Legacy technologies like GSM, WCDMA and LTE are all supported using the same hardware.

“The addition of FR2 mmW to our TS-LBS test solution gives customers the latest capabilities needed to continue certifying their mobile devices to evolving 5G standards,” said Bryan Helmick, of Rohde & Schwarz. AS well as adding 5G to existing LTE TS-LBS systems with the simple addition of an R&S CMX500, FR2 support only requires some hardware on the R&S CMX500 and an R&S CMQ500 mmW shield cube, he added.

5G NR in the sub-6GHz frequency range (FR1) can be seen as a natural evolution of LTE to achieve higher bandwidth and more flexibility on the physical layer, says Rohde & Schwarz.

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