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AssigneeBlackBerry Limited
InventorsMohammad Shafiq Bani Hani, Bruce Allen Bernhardt, Arnold Sheynman
Estimating the term…
A method, apparatus and computer-readable medium for determining a frequency drift of clock of a mobile communication device is disclosed. A first positioning signal, such as M-LMS signals, is received at a first positioning engine of the mobile communication device controlled by the clock. A second positioning signal, such as GNSS signals, is received at a second positioning engine of the mobile communication device controlled by the clock. A first position is determined from the first positioning signal, and a second position is determined from the second positioning signal. A difference between the first position and the second position is determined, and the frequency drift of the clock is determined from the difference between the first position and the second position. The frequency drift determined may be subsequently applied to the clock, and thus enhance the accuracy of M-LMS positioning when GNSS signals are unreliable.
A computer-implemented method of determining a frequency drift of clock of a mobile communication device, comprising:
An apparatus for determining a frequency drift of clock of a mobile communication device, comprising:
A non-transitory computer-readable medium having stored thereon a set of instructions that when accessed by a processor enable the processor to perform a method for determining a frequency drift of clock in a mobile communication device, the method comprising:
Dependencies are inferred from the claim text.