CHANNEL EXTRAPOLATION FROM ONE FREQUENCY AND TIME TO ANOTHER
First Claim
1. A method implemented by a wireless device of characterizing a wireless communication channel, the method comprising:
- determining a first set of scatterer parameters based on signal samples received by a wireless receiver via a first communication channel associated with a first frequency and a first time, wherein the first set of scatterer parameters comprises a set of scattering coefficients for each of a plurality of path delays, and wherein each scattering coefficient corresponds to a scattering object; and
determining a second set of scatterer parameters for a second communication channel associated with a second frequency and a second time by calculating extrapolated scattering coefficients for the second set of scatterer parameters based on the first set of scatterer parameters, the first and second frequencies, and the first and second times.
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Abstract
An improved channel estimation technique is provided herein that determines accurate scatterer parameters for the scattering objects in the wireless channel, and extrapolates the scatterer parameters in both time and frequency to characterize the scattering objects for a different time and a different frequency. In one embodiment, a wireless device determines scatterer parameters that characterizes the scattering objects of a reception channel, and extrapolates the scatterer parameters in both time and frequency to predict the scatterer parameters for a future time and frequency, e.g., a future transmission time and frequency.
107 Citations
26 Claims
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1. A method implemented by a wireless device of characterizing a wireless communication channel, the method comprising:
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determining a first set of scatterer parameters based on signal samples received by a wireless receiver via a first communication channel associated with a first frequency and a first time, wherein the first set of scatterer parameters comprises a set of scattering coefficients for each of a plurality of path delays, and wherein each scattering coefficient corresponds to a scattering object; and determining a second set of scatterer parameters for a second communication channel associated with a second frequency and a second time by calculating extrapolated scattering coefficients for the second set of scatterer parameters based on the first set of scatterer parameters, the first and second frequencies, and the first and second times. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A wireless device configured to characterize a wireless communication channel, the wireless device comprising:
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a first processing element configured to determine a first set of scatterer parameters based on signal samples received by a wireless receiver via a first communication channel associated with a first frequency and a first time, wherein the first set of scatterer parameters comprises a set of scattering coefficients for each of a plurality of path delays, and wherein each scattering coefficient corresponds to a scattering object; and a second processing element configured to determine a second set of scatterer parameters for a second communication channel associated with a second frequency and a second time by calculating extrapolated scattering coefficients for the second set of scatterer parameters based on the first set of scatterer parameters, the first and second frequencies, and the first and second times. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification