The value of A-GNSS OTA testing for wireless devices

With the huge growth in usage of Location-Based Services (LBS), the number of wireless devices supporting Assisted Global Navigation Satellite System (A-GNSS) is steadily on the rise. As one of the enabling LBS technologies, A-GNSS offers its customers higher position accuracy, quicker location fixes, and improved coverage of service in difficult locations, such as urban environments.  A-GNSS OTA testing gives a complete picture of real-world GNSS antenna performance and its impact on the end-user experience.

Are your wireless devices compliant with the new CTIA OTA mandate?

In February 2016, the CTIA expanded the OTA testing mandate scope to consider both GPS and GLONASS satellite constellations and require all location-enabled wireless devices—including laptops, tablets, and M2M devices, to undergo A-GNSS testing as part of the certification process.

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What to test


GNSS antennas

Characterization and performance for both TDD-LTE and FDD-LTE devices


Multiple antenna configurations

GNSS, cellular, Wi-Fi, Bluetooth



Test for CTIA mandates and operator-specific A-GNSS OTA performance requirements

A-GNSS OTA Test Methodology

A-GNSS OTA testing is performed in a controlled radiated environment and includes all relevant components (antennas, “phantom” head and hand, etc.).  This ensures that all interaction factors between the radio and the rest of the wireless platform, including radiation pattern and platform interference, are taken into account when determining overall wireless performance.

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Features & Benefits

Fully automated
Automates CTIA’s mandated OTA Test Plan for A-GNSS-enabled devices (CDMA/GSM/UMTS/LTE)
Easy integration
Integrates with third-party software and testing systems (anechoic chambers, antennas, other hardware); open API enables easy custom test development
Realistic simulations
Accounts for RF circuitry between antenna & receiver; antenna patterns & performance; impacts of human head & hand; free space configurations
Modular, customizable solutions range from bench-top systems to full racks that support multiple cellular technologies

Data Sheet

8100 LTE Location Technology

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Data Sheet

8100 A-GNSS Over The Air Test Solutions

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White Paper

LTE Positioning Technology for Mobile Devices: Test Challenges and Solutions

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