First 5G assisted GNSS certified OTA test system

First 5G assisted GNSS certified OTA test system

New Products |
By Nick Flaherty

Rohde & Swarz has received the first certification for a test system for 5G assisted GNSS navigation.

The R&S TS8991 over-the-air (OTA) test system is the first to be approved by CTIA Certification for testing 5G A-GNSS antenna performance, measuring the performance of the global navigation satellite system (GNSS) receiver in a wireless device.

This is critical because Assisted-GNSS is used for E911 emergency calls over 5G but has also been  difficult to certify the testing of all the different constellations in a smartphone.

The latest Test Plan for Wireless Device Over-the-Air (OTA) Performance Version 4.0.x from CTIA Certification added 5G FR1 EN-DC to the existing A-GPS L1 OTA specification. The previously published Version 6.0.x added 5G FR1 SA, A-GPS L5 and A-Galileo E1, which are soon to start the CTIA Certification validation process.

The testing required access to smartphone firmware and dedicated GNSS modes that allowed the L1 and L5 satellite links to be tested independently.

The certification marks a significant milestone that establishes the R&S TS8991 as the first 5G FR1 A-GNSS OTA test system to be approved by CTIA Certification.

The bespoke system consists of the R&S CMX500 5G one-box signaling tester, the R&S SMBV100B satellite simulator and an anechoic wireless performance test chamber (WPTC). It features a high degree of system integration and is easily upgradeable. Every component is controlled using the R&S CONTEST software, allowing for fully automated OTA measurements in compliance with CTIA Certification Test Plans.

The R&S CMX500 is a one-box solution for all mobile device testing applications. It supports transmitter and receiver RF parametric measurements as well as testing for data throughput, audio quality and battery life. This solution is integrated into the R&S TS8991 antenna performance test system to provide signaling capabilities to a device under test (DUT) as well as measure the receive sensitivity and transmit power. The R&S CMX500 covers the most advanced requirements for wireless communications testing and supports the latest 3GPP and IEEE technologies.

The R&S SMBV100B is a satellite simulator that supports all major satellite navigation technologies and satellite constellations. With the CMX500 location-based services, it supports all 3GPP-based Assisted GNSS technologies.

The R&S WPTC OTA Test Chamber is a high-performance OTA anechoic test chamber available in a range of chamber sizes for different testing needs.

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