Polarization handling of beam-formed signals
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorAndreas NILSSON
Life of this patent
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Abstract
There is provided mechanisms for polarization handling of received beam-formed signals. A method is performed by a receiving radio transceiver device. The method comprises collecting statistics of received power of a beam-formed signal transmitted in two orthogonal polarizations from a transmitting radio transceiver device. The method comprises determining a similarity measure value of the beam-formed signal between the two orthogonal polarizations using the collected statistics. The method comprises signalling to the transmitting radio transceiver device, when the similarity measure value is equal to, or larger than, a similarity threshold value, to use rank one for subsequent transmission of the beam-formed signal to the receiving radio transceiver device.
Claims23
A method for polarization handling of received beam-formed signals, the method being performed by a receiving radio transceiver device, the method comprising:
- collecting statistics of received power of a beam-formed signal transmitted in two orthogonal polarizations from a transmitting radio transceiver device;
- determining a similarity measure value of the beam-formed signal between the two orthogonal polarizations using the collected statistics;
- determining whether the similarity measure value is not less than a similarity threshold value;
- and
- as a result of determining that the similarity measure value is not less than the similarity threshold value, signaling to the transmitting radio transceiver device to use rank one for subsequent transmission of the beam-formed signal to the receiving radio transceiver device.
A method for polarization handling of transmitted beam-formed signals, the method being performed by a transmitting radio transceiver device, the method comprising:
- transmitting a beam-formed signal in two orthogonal polarizations;
- and
- receiving signalling from a receiving radio transceiver device, the signalling indicating for the transmitting radio transceiver device to use rank one for subsequent transmission of the beam-formed signal to the receiving radio transceiver device.
A radio transceiver device acting as a receiving radio transceiver device for polarization handling of received beam-formed signals, the radio transceiver device comprising processing circuitry, the processing circuitry being configured to cause the radio transceiver device to:
- collect statistics of received power of a beam-formed signal transmitted in two orthogonal polarizations from a transmitting radio transceiver device;
- determine a similarity measure value of the beam-formed signal between the two orthogonal polarizations using the collected statistics;
- and
- signal to the transmitting radio transceiver device, when the similarity measure value is equal to, or larger than, a similarity threshold value, to use rank one for subsequent transmission of the beam-formed signal to the receiving radio transceiver device.
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A radio transceiver device acting as a transmitting radio transceiver device for polarization handling of transmitted beam-formed signals, the radio transceiver device comprising processing circuitry, the processing circuitry being configured to cause the radio transceiver device to:
- transmit a beam-formed signal in two orthogonal polarization;
- and
- receive signalling from a receiving radio transceiver device, the signalling indicating for the transmitting radio transceiver device to use rank one for subsequent transmission of the beam-formed signal to the receiving radio transceiver device.
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A computer program product comprising a non-transitory computer readable medium comprising a computer program for polarization handling of received beam-formed signals, the computer program comprising computer code which, when run on processing circuitry of a radio transceiver device acting as a receiving radio transceiver device, causes the radio transceiver device to:
- collect statistics of received power of a beam-formed signal transmitted in two orthogonal polarizations from a transmitting radio transceiver device;
- determine a similarity measure value of the beam-formed signal between the two orthogonal polarizations using the collected statistics;
- and
- signal to the transmitting radio transceiver device, when the similarity measure value is equal to, or larger than, a similarity threshold value, to use rank one for subsequent transmission of the beam-formed signal to the receiving radio transceiver device.
A computer program product comprising a non-transitory computer readable medium comprising a computer program for polarization handling of transmitted beam-formed signals, the computer program comprising computer code which, when run on processing circuitry of a radio transceiver device acting as a transmitting radio transceiver device, causes the radio transceiver device to:
- transmit a beam-formed signal in two orthogonal polarizations;
- and
- receive signalling from a receiving radio transceiver device, the signalling indicating for the transmitting radio transceiver device to use rank one for subsequent transmission of the beam-formed signal to the receiving radio transceiver device.
(canceled)
Dependencies are inferred from the claim text.