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US 12,763,800 B2Granted
Full duplex interference management based on sidelink channel reports
AssigneeKYOCERA Corporation
InventorsAmit Kalhan, Henry Chang
Life of this patent
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Abstract
A downlink-receiving device receives full duplex information from a base station where the full duplex information is based on a sidelink channel state report of the sidelink channel between the downlink-receiving device and an uplink-transmitting device. The full duplex information comprises antenna pattern parameters that are applied by the downlink-receiving device to adjust a receiving antenna pattern to have a null in the direction of the uplink transmitting device. The reception gain within the null is at least less than a reception gain of at least one other portion of the receive antenna pattern.
Claims20
A communication device comprising:
- a receive antenna;
- a receiver coupled to the receive antenna and configured to receive full duplex information from a base station, the full duplex information comprising receiver weight combiner parameters based on a sidelink channel state report of a sidelink channel between the communication device and an uplink-transmitting device, the sidelink channel state report received at the base station;
- and
- a receive antenna controller configured to adjust, based on the receiver weight combiner parameters, at least one of the receive antenna and the receiver to create a receive antenna pattern having a reception null in an uplink device direction from the communication device to the uplink-transmitting device when the receiver is receiving a downlink signal from the base station in a channel and the uplink-transmitting device is transmitting an uplink signal in the channel, a null reception gain within the reception null being less that at least one other portion of the receive antenna pattern.
1 more element
A communication device comprising:
- a receiver configured to receive full duplex information from a base station, the full duplex information comprising transmitter precoder parameters based on a sidelink channel state report of a sidelink channel between the communication device and a downlink-receiving user equipment device;
- a transmitter;
- a transmit antenna coupled to the transmitter;
- and
- a transmit antenna controller configured to adjust, based on the transmitter precoder parameters, at least one of the transmit antenna and the transmitter to create a transmit antenna pattern having a transmission null in a downlink device direction from the communication device to the downlink-receiving device when the transmitter is transmitting an uplink signal to the base station and the downlink-receiving device is receiving the downlink signal, a null transmission gain within the transmission null being less that at least one other portion of the transmission antenna pattern.
2 more elements
A base station comprising:
- a receiver configured to receive a sidelink channel state report of a sidelink channel between a downlink-receiving device and an uplink-transmitting device;
- a controller configured to schedule full duplex communication comprising transmission of a downlink signal from the base station to the downlink receiving user equipment (UE) device within a channel and transmission of an uplink signal from the uplink-transmitting device to the base station within the channel and at the same time as the transmission of the downlink signal, the controller configured to determine full duplex information based on the sidelink channel state report;
- and
- a transmitter configured to transmit full duplex information to at least one of the uplink-transmitting device and the downlink-receiving device to invoke an interference-reducing antenna pattern at the least one of the uplink-transmitting device and the downlink receiving UE device, the interference-reducing antenna pattern comprising a null in a direction,
- the direction from the uplink-transmitting device to the downlink-receiving device when the interference-reducing antenna pattern is a transmission antenna pattern at the uplink transmission UE device,
- the direction from the downlink-receiving device to the uplink-transmitting device when the interference-reducing antenna pattern is a receive antenna pattern at the downlink receiving UE device,
- when the full duplex information is transmitted to the downlink receiving UE device, the full duplex information comprising timing of the uplink signal and receiver weight combiner parameters, the receiver weight combiner parameters resulting in the reception antenna pattern when applied at the downlink receiving UE device,
- when the full duplex information is transmitted to the uplink-transmitting device, the full duplex information comprising timing of the downlink signal and transmitter precoder parameters, the transmitter precoder parameters resulting in the transmission antenna pattern when applied at the uplink-transmitting device.
5 more elements
Dependencies are inferred from the claim text.