Method for reducing operation for removing self-interference in FDR environment and device therefor
AssigneeLG Electronics Inc.
InventorsDongkyu Kim, Kwangseok Noh, Sangrim Lee, Hojae Lee
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Abstract
A method by which a base station reduces an operation for removing self-interference in an FDR environment can comprise the steps of receiving estimated channel state information from a terminal, determining a beam forming value for transmission beamforming on the basis of the received channel state information, and transmitting a downlink signal by applying the determined beamforming value.
Claims5
A method for reducing an operation for self-interference cancellation by a user equipment (UE) in a full duplex radio (FDR) environment, the method comprising:
- performing channel estimation for a downlink signal transmitted from a base station (BS);
- determining a beamforming value for transmission beamforming based on channel reciprocity property as a result of the channel estimation;
- and
- transmitting an uplink signal by applying the determined beamforming value,
- wherein the determined beamforming value is a value determined to cancel a difference between reception (RX) beam gains per RX antenna of the BS.
A base station (BS) for performing communication to reduce an operation for self-interference cancellation in a full duplex radio (FDR) environment, the BS comprising:
- a receiver configured to receive estimated channel state information from a user equipment (UE);
- a processor configured to determine a beamforming value for transmission beamforming based on the received channel state information;
- and
- a transmitter configured to transmit a downlink signal by applying the determined beamforming
- wherein the determined beamforming value is a value determined to cancel a difference between reception (RX) beam gains per RX antenna of the BS.
A user equipment (UE) for performing communication to reduce an operation for self-interference cancellation in a full duplex radio (FDR) environment, the UE comprising:
- a processor configured to:
- perform channel estimation for a downlink signal transmitted from a base station (BS);
- and
- determine a beamforming value for transmission beamforming based on channel reciprocity property as a result of the channel estimation;
- and
- a transmitter configured to transmit an uplink signal by applying the determined beamforming value,
- wherein the determined beamforming value is a value determined to cancel a difference between reception (RX) beam gains per RX antenna of the BS.
Dependencies are inferred from the claim text.