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US 10,383,125 B2Granted
Terminal device and wireless communication device
AssigneeSony Corporation
InventorNishiki Mizusawa
Life of this patent
Estimating the term…
Abstract
To provide a terminal device which can make communication processing efficient by a reference signal being beamformed in FD-MIMO. Provided is a terminal device including a control unit configured to select part of antenna ports among antenna ports of a reference signal beamformed with a plurality of beams from a wireless communication device and generate a channel state report which reports states of channels at the selected antenna ports to the wireless communication device.
Claims20
A terminal device comprising:
- processing circuitry is configured to
- while in an Radio Resource Control (RRC) connected state, receive Channel State Information (CSI) reporting mode notification indicating a UE-selected-beamform-CSI-RS mode;
- receive CSI process information and Channel State information Reference Signal (CSI-RS) configuration information associated with antenna ports of beamformed CSI-RS;
- measure the beamformed CSI-RS;
- judge whether the received reporting mode is the UE-selected-beamform-CSI-RS mode;
- in accordance with the mode notification indicating the UE-selected-beamform-CSI-RS mode, select part of antenna ports among antenna ports of a reference signal beamformed with a plurality of beams from a wireless communication device andgenerate a channel state report which reports states of channels at the selected antenna ports to the wireless communication device.
3 more elements
A wireless communication device comprising:
- processing circuitry is configured to
- determine when a terminal device is in an Radio Resource Control (RRC) connected state,
- while the terminal device is in the RRC connected state, transmit a Channel State Information (CSI) reporting mode notification indicating UE-selected-beamform-Channel State information Reference Signal (CSI-RS) to the terminal device;
- transmit CSI process information and CSI-RS configuration information associated with antenna ports of beamformed CSI-RS;
- acquire from the terminal device a channel state report reporting states of channels at part of antenna ports among all antenna ports of a reference signal beamformed with a plurality of beams and cause downlink data to the terminal device to be beamformed using antenna ports selected by the terminal device.
2 more elements
A wireless communication device including:
- processing circuitry configured to
- determine when a terminal device is in an Radio Resource Control (RRC) connected state;
- while the terminal device is in the RRC connected state, transmit a Channel State Information (CSI) reporting mode notification indicating UE-selected-beamform-Channel State information Reference Signal (CSI-RS) to the terminal device;
- transmit CSI process information and CSI-RS configuration information associated with antenna ports of beamformed CSI-RS;
- notify the terminal device, in the RRC connected state, of configuration information of a reference signal beamformed by the wireless communication device with a plurality of beams and configuration information of a reference signal to be beamformed by an adjacent cell with a plurality of beams.
2 more elements
Dependencies are inferred from the claim text.