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Brock Butler

Brock Butler

Brock Butler is director of Spirent’s Wireless Location Technologies, part of a team that has made major contributions to development of the LBS standards in the 3GPP: Spirent filled the editor and rapporteur roles for the TS 51.010 and TS 34.171 A-GPS Terminal Conformance Specifications, as well as the editor role for the Enabler Test Specification for SUPL in the OMA. Butler holds a BSc in electrical engineering from Villanova University.
 

Article
Expert Advice: Getting to Accurate Everywhere Location   February 1, 2012
By: Brock Butler

In the next two to four years, mobile device location platforms will be able to provide positioning performance that enables emergency call (E911) and location-based services (LBS) with excellent accuracy (5–10 meters) in all locations. We call this accurate everywhere location, and it will be a...more >>

Article
A-GPS Antenna Performance: Over-the-Air Test Method   September 1, 2009
By: Brock Butler,Hakan Alparslan,Michael D. Foegelle,Ronald Borsato

Traditional testing of A-GPS device performance over a cabled RF connection, bypassing the GPS antenna and associated circuitry, does not give a complete picture of real-world performance and user experience. The OTA methodology described here ensures that all GPS antenna and device design factors...more >>




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