Partially synchronized multilateration or trilateration method and system for positional finding using RF
First Claim
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1. A method for determining a location of a user equipment (UE) in a wireless system, the method comprising:
- receiving reference signals via two or more co-located channels;
synchronizing timings of the two or more co-located channels within a standard deviation of less than or equal to a predetermined time based on a distance location accuracy for the wireless system; and
utilizing the received reference signals to calculate the location of the UE.
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Abstract
Systems and methods for determining a location of user equipment (UE) in a wireless system can comprise receiving reference signals via a location management unit (LMU) having two or more co-located channels, wherein the two or more co-located channels are tightly synchronized with each other and utilizing the received reference signals to calculate a location of the UE. Some systems may include multichannel synchronization with a standard deviation of less than or equal 10 ns. Some systems may include two LMUs, with each LMU having internal synchronization, or one LMU with tightly synchronized signals.
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Citations
42 Claims
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1. A method for determining a location of a user equipment (UE) in a wireless system, the method comprising:
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receiving reference signals via two or more co-located channels; synchronizing timings of the two or more co-located channels within a standard deviation of less than or equal to a predetermined time based on a distance location accuracy for the wireless system; and utilizing the received reference signals to calculate the location of the UE. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for determining a location of a user equipment (UE) in a wireless system, the method comprising:
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receiving reference signals via a first location management unit having a first plurality of co-located channels; synchronizing timings of the first plurality of co-located channels within a first standard deviation of less than or equal to a first predetermined time based on a distance location accuracy for the wireless system; receiving reference signals via a second location management unit having a second plurality of co-located channels; synchronizing timings of the second plurality of co-located channels of the second location management unit within a second standard deviation of less than or equal to a second predetermined time based on the distance location accuracy for the wireless system; and utilizing the received reference signals from the first location management unit and the received reference signals from the second location management unit to calculate the location of the UE. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method for determining a location of a user equipment (UE) in a wireless system, the method comprising:
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receiving reference signals via a stationary location management unit having two or more co-located receive channels comprising one or more of software and hardware-implemented signal processing components, wherein the two or more co-located receive channels are tightly time synchronized with each other; and utilizing the received reference signals to calculate a location of the UE. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification