A-GNSSAssisted Global Navigation Satellite System (also seen as AGNSS)
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In addition, Rohde & Schwarz announced that CETECOM, a specialist in test and certification for wireless communications devices, has selected the R&S TS8980FTA-2 and R&S CMW500 wireless test platforms for conformance and network-operators acceptance testing for LTE RIO CA, IMS, VoLTE, RCS, E911 over IMS, A-GNSS, OTDOA, and eCID.
Both organizations will use the platforms to support technologies such as CA, VoLTE/IMS, RCS, A-GNSS, OTDOA, eCID, and E911 over IMS.
In part one, we provided results from the industry's first independent performance benchmark study of the leading A-GNSS platforms.
A Protective Case can Severely Degrade A-GNSS Performance
Based on the performance criteria that were used to conduct the analysis, the report indicates that the performance of today's A-GNSS chipset platforms is largely comparable.
However, a key finding in the report is that the overall performance consistency of A-GNSS platforms does not extend to their commercial implementations in leading smartphone models.
Although established technologies such as A-GNSS (A-GPS and A-GLONASS) provides excellent performance in environments with a clear view of the sky, performance is often poor indoors, where detection of satellite signals is limited.
The R&S TS-LBS test system from Rohde & Schwarz provides the right solutions for this requirement: appropriate protocol tests for transmitting the caller s position, minimum performance tests for A-GNSS as well as network-based positioning methods such as OTDOA and eCID.
Mobile radio networks transmit location-specific information to wireless devices via A-GNSS so that they can determine the current position faster.
How can Assisted-GPS, A-GNSS and hybrid location technologies benefit handset manufacturers, network operators and end-users?