Aeroflex's A-GPS (Assisted-Global Positioning System) test solution for mobile handsets is based on the company's 6103 AIME and 6103 AIME/CT test systems.
It eliminates the need for costly field trials and reducing time-to-market. The solution is designed to support the development lifecycle of A-GPS devices from initial R&D through to conformance test.
It provides full GSM/(E)GPRS and UMA/GAN network emulation.
To create the A-GPS mobile handset test solution, Aeroflex has fully integrated Navigation Laboratories' 12-channel NLC"L1"AGPS Constellation Simulator with the 6103 AIME and AIME/CT platforms.
The simulator emulates the entire 24-satellite GPS constellation and enables high-performance modeling of all associated GPS satellite and vehicle effects, to provide a complete environment for developing and testing A-GPS devices.
The tester supports both MS-Based and MS-Assisted positioning methods, as well as conventional GPS, and provides analysis of the pseudo-range as well as latitude/longitude location response for the unit under test.
The support of RRLP messaging allows simulation of the standard A-GPS call flow location requests for the control plane. For the user plane it provides the ability to support TCP/IP and the SUPL (Secure User Plane).
RF minimum performance testing of the GPS receiver is also a key test requirement. Aeroflex is currently participating at 3GPP GERAN meetings as the minimum performance test specifications are being developed.
Example test scripts allow access to each layer of the protocol structure, including the RRLP messaging and the ability to define any RRLP protocol message, even non-compliant messaging to test error conditions.
Auto-assistance data is generated from the GPS simulator, sent through the AIME system and delivered over the control or user plane to the mobile terminal without any need for manual intervention.
The system currently supports all 33 of the A-GPS test cases listed in TS51.010 at both GCF work item 16 and PTCRB RFT 34. Formal validation and submission will occur before the end of the year and will be submitted on GCF/PTCRB platform 69 (6103 AIME/CT + Navigation Laboratories GPS satellite simulator).
The A-GPS test platform is available for immediate delivery. The Aeroflex 6103 AIME and 6103 AIME/CT mobile handset test systems are highly configurable. More information is available at www.aeroflex.com.