G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 5/00 (2006.01) H04W 52/02 (2009.01) H04W 64/00 (2009.01) G01S 19/23 (2010.01)
Patent
CA 2701472
A method and a mobile device configured to obtain position information from a position broadcast system, the position broadcast system comprising a plurality of transmitters that each broadcast a respective signal containing position information for the respective transmitter. The method comprising: measuring signal strengths of signals from a plurality of the transmitters of the position broadcast system; and determining that the mobile device is out of range of the position broadcast system if the measured signals strengths satisfy at least one out of range criterion.
Research In Motion Limited
Smart & Biggar
LandOfFree
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