Location Determination
First Claim
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1. A method comprising:
- obtaining power information indicating a detected power of respective signals received in a mobile device from multiple transmitters;
determining, using at least the obtained power information, respective probability values for a plurality of positions, each probability value indicating a probability that the mobile device is in a corresponding position; and
identifying an estimated position of the mobile device based at least in part on the determined probability values.
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Abstract
Systems, methods, and computer program products obtain power information indicating a detected power of respective signals received in a mobile device from multiple transmitters. Using at least the obtained power information, respective probability values for a plurality of positions are determined, each probability value indicating a probability that the mobile device is in a corresponding position. An estimated position of the mobile device is identified based at least in part on the determined probability values.
270 Citations
19 Claims
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1. A method comprising:
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obtaining power information indicating a detected power of respective signals received in a mobile device from multiple transmitters; determining, using at least the obtained power information, respective probability values for a plurality of positions, each probability value indicating a probability that the mobile device is in a corresponding position; and identifying an estimated position of the mobile device based at least in part on the determined probability values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A computer program product, encoded on a tangible program carrier, operable to cause a portable device to perform operations comprising:
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obtaining power information indicating a detected power of respective signals received in a mobile device from multiple transmitters; determining, using at least the obtained power information, respective probability values for a plurality of positions, each probability value indicating a probability that the mobile device is in the corresponding position; and identifying an estimated position of the mobile device based at least in part on the determined probability values.
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19. A mobile device comprising:
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a processor-accessible medium containing power information that indicates a detected power of respective signals received in a mobile device from multiple transmitters; and a position estimator that
1) determines, using at least the obtained power information, respective probability values for a plurality of positions, each probability value indicating a probability that the mobile device is in the corresponding position; and
2) identifies an estimated position of the mobile device based at least in part on the determined probability values.
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Specification