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US 10,651,890 B2Granted
Device and method for wireless communication and communication terminal
AssigneeSony Corporation
InventorsZaichen Zhang, Rong Zeng
Life of this patent
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Abstract
The present disclosure provides a device and method for wireless communication and a communication terminal. The device comprises: a spatial filtering unit, configured to perform spatial filtering on a signal received by each antenna in a receiving antenna array, and combine filtered signals, wherein all coefficients adopted by spatial filtering are configured to reduce an equivalent channel time-variant degree of a combined signal.
Claims7
An apparatus for wireless communications, comprising:
- circuitry configured to
- perform spatial filtering on signals received by each of antennas in a receiving antenna array, and combine the filtered signals to generate a combined signal, wherein coefficients used by the spatial filtering are configured such that an equivalent channel time-variant degree for the combined signal is decreased;
- and
- receive a trigger signal from a device from which the signals are received, the trigger signal triggering the circuitry to perform the spatial filtering processing, wherein
- the trigger signal is generated based on a relative speed between the device from which the signals are received and the apparatus, and
- the relative speed is determined by the device according to a speed of the apparatus, which is acquired from the apparatus, wherein the circuitry is further configured to
- determine, based on a root-mean-square wavenumber spread of the signal which is spatial filtered and combined, the coefficients used by the spatial filtering
- determine a corresponding wavenumber spectrum according to a configuration of the receiving antenna array;
- calculate, based on the wavenumber spectrum, the root-mean-square wavenumber spread of the wavenumber spectrum, and calculate, based on a principle that the spatial filtered signals are orthogonal to each other in an angle domain, the root-mean-square wavenumber spread of the combined signal;
- and
- obtain optimal coefficients for the spatial filtering by minimizing the root-mean-square wavenumber spread of the combined signal.
8 more elements
A method for wireless communications at an apparatus, comprising:
- performing spatial filtering on signals received by each of antennas in a receiving antenna array, and combining the filtered signals to generate a combined signal, wherein coefficients used by the spatial filtering are configured such that an equivalent channel time-variant degree for the combined signal is decreased;
- and
- receiving a trigger signal from a device from which the signals are received, the trigger signal triggering the spatial filtering unit to perform the spatial filtering processing, wherein
- the trigger signal is generated based on a relative speed between the device from which the signals are received and the apparatus, and
- the relative speed is determined by the device according to a speed of the apparatus, which is acquired from the apparatus. the method further comprising
- determining, based on a root-mean-square wavenumber spread of the signal which is spatial filtered and combined, the coefficients used by the spatial filtering
- determining a corresponding wavenumber spectrum according to a configuration of the receiving antenna array,
- calculating, based on the wavenumber spectrum, the root-mean-square wavenumber spread of the wavenumber spectrum, and calculate, based on a principle that the spatial filtered signals are orthogonal to each other in an angle domain, the rood-mean-square wavenumber spread of the combined signal, and
- obtaining optimal coefficients for the spatial filtering by minimizing the root-mean-square wavenumber spread of the combined signal.
6 more elements
Dependencies are inferred from the claim text.