Method and device for multiantenna parameter configuration in wireless communications

A base station, comprising:

• a transmitter configured to transmit:
• a radio resource control (RRC) information indicating a Transmission Configuration Indicator (TCI) state group that includes a first TCI state that indicates a first quasi co-location (QCL) relationship of a first type for a first reference signal and a second TCI state that indicates a second QCL relationship of a second type for a second reference signal;
• downlink control information (DCI) that indicates time-frequency resources;
• and
• a physical downlink shared channel (PDSCH) in the time-frequency resources,
• wherein the PDSCH is received based on a TCI state of the TCI state group, and wherein the TCI state is determined based on comparing a time difference between a reception time of the DCI and a reception time of the PDSCH with a threshold.

A method, comprising:

• receiving radio resource control (RRC) information indicating a Transmission Configuration Indicator (TCI) state group that includes a first TCI state that indicates a first quasi co-location (QCL) relationship of a first type for a first reference signal and a second TCI state that indicates a second QCL relationship of a second type for a second reference signal;
• receiving downlink control information (DCI) that indicates time-frequency resources;
• and
• receiving a physical downlink shared channel (PDSCH) in the time-frequency resources,
• wherein the PDSCH is received based on a TCI state of the TCI state group, wherein the TCI state is determined based on comparing a time difference between a reception time of the DCI and a reception time of the PDSCH with a threshold.