Method and apparatus for reporting channel state information in wireless communication system

A user equipment (UE) in a communication system, the UE comprising:

• a transceiver;
• and
• a processor coupled with the transceiver and configured to:
• receive, via a higher layer signaling, a first configuration associated with a subband non-overlapping full duplex (SBFD) and a second configuration associated with channel state information (CSI) reference signal (CSI-RS) resources,
• identify, based on the first configuration and the second configuration, CSI-RS resources corresponding to at least one SBFD symbol of an SBFD slot, wherein the CSI-RS resources corresponding to at least one SBFD symbol include at least one first CSI-RS resource overlapped with at least one downlink SBFD subband corresponding to the SBFD slot and at least one second CSI-RS resource overlapped with at least one uplink SBFD subband corresponding to the SBFD slot,
• receive, based on the at least one first CSI-RS resource, a first CSI-RS corresponding to a sequence, wherein the sequence is mapped to resource elements (REs) within resource blocks (RBs) corresponding to the at least one first CSI-RS resource and the at least one second CSI-RS resource, and
• transmit CSI associated with the first CSI-RS.

A method performed by a base station in a communication system, the method comprising:

• transmitting, via a higher layer signaling, a first configuration associated with a subband non-overlapping full duplex (SBFD) and a second configuration associated with channel state information (CSI) reference signal (CSI-RS) resources;
• identifying CSI-RS resources corresponding to at least one SBFD symbol of an SBFD slot, wherein the CSI-RS resources corresponding to at least one SBFD symbol include at least one first CSI-RS resource overlapped with at least one downlink SBFD subband corresponding to the SBFD slot and at least one second CSI-RS resource overlapped with at least one uplink SBFD subband corresponding to the SBFD slot;
• transmitting, based on the at least one first CSI-RS resource, a first CSI-RS corresponding to a sequence, wherein the sequence is mapped to resource elements (REs) within resource blocks (RBs) corresponding to the at least one first CSI-RS resource and the at least one second CSI-RS resource;
• and
• receiving CSI associated with the first CSI-RS.

A base station in a communication system, the base station comprising:

• a transceiver;
• and
• a processor coupled with the transceiver and configured to:
• transmit, via a higher layer signaling, a first configuration associated with a subband non-overlapping full duplex (SBFD) and a second configuration associated with channel state information (CSI) reference signal (CSI-RS) resources,
• identify CSI-RS resources corresponding to at least one SBFD symbol of an SBFD slot, wherein the CSI-RS resources corresponding to at least one SBFD symbol include at least one first CSI-RS resource overlapped with at least one downlink SBFD subband corresponding to the SBFD slot and at least one second CSI-RS resource overlapped with at least one uplink SBFD subband corresponding to the SBFD slot,
• transmit, based on the at least one first CSI-RS resource, a first CSI-RS corresponding to a sequence, wherein the sequence is mapped to resource elements (REs) within resource blocks (RBs) corresponding to the at least one first CSI-RS resource and the at least one second CSI-RS resource, and
• receive CSI associated with the first CSI-RS.