Measurement gap configuration for multi-TRP antenna calibration
AssigneeQUALCOMM Incorporated
InventorsVasanthan Raghavan, Tao Luo, Junyi Li
Life of this patent
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Abstract
A base station may perform online calibration of antenna elements at two or more transmission reception points (TRPs) based on measurements by one or more user equipment (UEs). The base station may transmit a request for the one or more UEs to perform antenna calibration measurements, for the two or more TRPs, during measurement gaps. The base station may coordinate, among the two or more TRPs, transmission of reference signals during the measurement gaps. The base station may receive a report based on the antenna calibration measurements from the one or more UEs. The base station may calibrate one or more antenna elements of the two or more TRPs based on the antenna calibration measurements.
Claims28
A method of wireless communication, comprising:
- transmitting a request for one or more user equipment (UEs) to perform antenna calibration measurements, for two or more transmission reception points (TRPs), during measurement gaps, wherein the request includes a joint quasi-co-location (QCL) mapping for reception of joint transmissions of reference signals from all of the two or more TRPs to the one or more UEs;
- coordinating, among the two or more TRPs, joint transmission of reference signals from all of the two or more TRPs during the measurement gaps based on the joint QCL mapping;
- receiving a report based on the antenna calibration measurements from the one or more UEs;
- and
- calibrating one or more antenna elements of the two or more TRPs based on the antenna calibration measurements.
A method of wireless communication, comprising, by a user equipment (UE):
- receiving a request to perform antenna calibration measurements during measurement gaps, for two or more transmission reception points (TRPs), wherein the request includes a joint quasi-co-location (QCL) mapping for reception of joint transmissions of reference signals from all of the two or more TRPs to the UE;
- performing the antenna calibration measurements on joint transmissions of reference signals from all of the two or more TRPs during the measurement gaps based on the joint QCL mapping;
- and
- transmitting a report to at least one of the TRPs based on the antenna calibration measurements.
An apparatus for wireless communication, comprising:
- a memory storing computer-executable instructions;
- and
- at least one processor coupled to the memory and configured to execute the computer-executable instructions to:
- transmit a request for one or more user equipment (UEs) to perform antenna calibration measurements, for two or more transmission reception points (TRPs), during measurement gaps wherein the request includes a joint quasi-co-location (QCL) mapping for reception of joint transmissions of reference signals from all of the two or more TRPs to the one or more UEs;
- coordinate, among the two or more TRPs, joint transmission of reference signals from all of the two or more TRPs during the measurement gaps;
- receive a report based on the antenna calibration measurements from the one or more UEs;
- and
- calibrate one or more antenna elements of the two or more TRPs based on the antenna calibration measurements.
An apparatus of a user equipment (UE) for wireless communication, comprising:
- a memory storing computer-executable instructions;
- and
- at least one processor coupled to the memory and configured to execute the computer-executable instructions to:
- receive a request to perform antenna calibration measurements during measurement gaps, for two or more transmission reception points (TRPs), wherein the request includes a joint quasi-co-location (QCL) mapping for reception of joint transmissions of reference signals from all of the two or more TRPs to the UE;
- perform the antenna calibration measurements on joint transmissions of reference signals from all of the two or more TRPs during the measurement gaps based on the joint QCL mapping;
- and
- transmit a report to at least one of the TRPs based on the antenna calibration measurements.
Dependencies are inferred from the claim text.