Terrestrial positioning system calibration
First Claim
1. A method on a Mobile Station (MS) comprising:
- obtaining location assistance data comprising a map with a first plurality of map layers, wherein each map layer in the first plurality of map layers associates location entries in a Base Station Almanac (BSA) with spatially variable Forward Link Calibration (FLC) values for an antenna;
performing, based on the location assistance data, measurements to obtain a measurement set comprising signal measurements for the antenna, wherein a calibration comprising at least one spatially variable FLC value in the location assistance data is applied to at least one measurement in the measurement set; and
sending the measurement set to a BSA server.
1 Assignment
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Accused Products
Abstract
Embodiments disclosed aggregate a plurality of crowdsourced measurement sets for antennas received from a plurality of Mobile Stations (MS) with a Base Station Almanac (BSA), based on a measurement location estimate and a measurement location uncertainty estimate associated with each measurement set. A map comprising a plurality of map layers may be obtained, where each map layer associates locations in the BSA with spatially variable Forward Link Calibration (FLC) values for the antenna derived from the updated BSA data, wherein each spatially variable FLC value is associated with a corresponding location in the updated BSA data. Map layers, which may also include multipath map and/or received signal strength layers, may be provided to MS′ as location assistance data.
44 Citations
30 Claims
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1. A method on a Mobile Station (MS) comprising:
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obtaining location assistance data comprising a map with a first plurality of map layers, wherein each map layer in the first plurality of map layers associates location entries in a Base Station Almanac (BSA) with spatially variable Forward Link Calibration (FLC) values for an antenna; performing, based on the location assistance data, measurements to obtain a measurement set comprising signal measurements for the antenna, wherein a calibration comprising at least one spatially variable FLC value in the location assistance data is applied to at least one measurement in the measurement set; and sending the measurement set to a BSA server. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A Mobile Station (MS) comprising:
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a processor, wherein the processor is configured to; obtain location assistance data comprising a map with a first plurality of map layers, wherein each map layer in the first plurality of map layers associates location entries in a Base Station Almanac (BSA) with spatially variable Forward Link Calibration (FLC) values for an antenna, and perform, based on the location assistance data, measurements to obtain a measurement set comprising signal measurements for the antenna, wherein a calibration comprising at least one spatially variable FLC value in the location assistance data is applied to at least one measurement in the measurement set; and a transceiver coupled to the processor, the transceiver to send the measurement set to a BSA server. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A Mobile Station (MS) comprising:
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means for obtaining location assistance data comprising a map with a first plurality of map layers, wherein each map layer in the first plurality of map layers associates location entries in a Base Station Almanac (BSA) with spatially variable Forward Link Calibration (FLC) values for an antenna; means for performing measurements based on the location assistance data to obtain a measurement set comprising signal measurements for the antenna, wherein a calibration comprising at least one spatially variable FLC value in the location assistance data is applied to at least one measurement in the measurement set; and transceiver means coupled to the means for performing measurements, the transceiver means to send the measurement set to a BSA server. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A non-transitory computer-readable medium comprising instructions, which, when executed by a processor, perform steps in a method on a Mobile Station (MS), the steps comprising:
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obtaining location assistance data comprising a map with a first plurality of map layers, wherein each map layer in the first plurality of map layers associates location entries in a Base Station Almanac (BSA) with spatially variable Forward Link Calibration (FLC) values for an antenna; performing, based on the location assistance data, measurements to obtain a measurement set comprising signal measurements for the antenna, wherein a calibration comprising at least one spatially variable FLC value in the location assistance data is applied to at least one measurement in the measurement set; and sending the measurement set to a BSA server. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification