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US 12,375,187 B2Granted
Adaptation of transmit and receive antennas
AssigneeQUALCOMM Incorporated
InventorsWanshi Chen, Peter Gaal
Life of this patent
Estimating the term…
Abstract
An antenna adaptation is provided for a communication node as controlled by an antenna adaptation command. The antenna adaptation command adjusts the number of active transmit antennas and/or the number of active receive antennas in the communication node such as for reducing interference at the communication node.
Claims5
A method of wireless communication for a user equipment, comprising:
- during a first antenna adaptation period, transmitting from the user equipment over a first number of transmit antennas according to a first data rate and receiving over a second number of receive antennas;
- transitioning from the first antenna adaptation period to a second antenna adaptation period responsive to an antenna adaptation command to address interference to downlink reception at the user equipment, wherein the antenna adaptation command comprises at least one of a downlink control information (DCI) message, a media access control (MAC) control element (CE) message, and a radio resource control (RRC) message, and wherein the first antenna adaptation period and the second antenna adaptation period comprise one of a time slot, a portion of a time slot, a plurality of time slots, and a bandwidth part switching period;
- and
- during the second antenna adaptation period, transmitting from the user equipment over a third number of transmit antennas according to a second data rate that is lower than the first data rate and receiving over a fourth number of receive antennas, wherein the first number of transmit antennas is greater than the third number of transmit antennas, and wherein the fourth number of receive antennas is greater than the second number of receive antennas.
1 more element
A user equipment, comprising:
- a set of transmit antennas;
- a set of receive antennas;
- a processor configured to process an antenna adaptation command to select a first number of transmit antennas from the set of transmit antennas and a second number of receive antennas from the set of receive antennas to address interference to downlink reception at the user equipment, wherein the antenna adaptation command comprises at least one of a downlink control information (DCI) message, a media access control (MAC) control element (CE) message, and a radio resource control (RRC) message;
- and
- a transceiver configured to transmit at a first data rate through a second number of transmit antennas from the set of transmit antennas during a first antenna adaptation period and to receive over a third number of receive antennas from the set of receive antennas, the transceiver being further configured to transmit at a second data rate through the first number of transmit antennas during a second antenna adaptation period and to receive over the second number of receive antennas, wherein the first data rate is greater than the second data rate, the second number of receive antennas is larger than the third number of receive antennas, the first number of transmit antennas is less than the second number of transmit antennas, and the first antenna adaptation period and second antenna adaptation period each comprise one of a time slot, a portion of a time slot, a plurality of time slots, and a bandwidth part switching period.
2 more elements
Dependencies are inferred from the claim text.