PUCCH Reporting of Reciprocity-Based Type-II Codebook

A network entity apparatus for channel state information (“CSI”) reporting, the apparatus comprising:

• a transceiver that:
• transmits, to a user equipment (“UE”), a channel state information (“CSI”) reporting configuration comprising a codebook type associated with a precoding matrix;
• transmits, to the UE, CSI reference signals (“CSI-RS”) over a set of CSI-RS resources based on the CSI reporting configuration;
• and
• receives, from the UE, a CSI report on a physical uplink control channel (“PUCCH”) or a physical uplink shared channel (“PUSCH”) and based on the codebook type, the CSI report comprising CSI and a set of coefficients associated with the codebook, wherein to receive the CSI report on the PUCCH is based on a value of a sub-configuration of the CSI reporting configuration.

A method of a user equipment (“UE”) for channel state information (“CSI”) reporting, the method comprising:

• receiving, from a network entity, a channel state information (“CSI”) reporting configuration comprising a codebook type associated with a precoding matrix;
• receiving, from the network entity, CSI reference signals (“CSI-RS”) over a set of CSI-RS resources based on the CSI reporting configuration;
• identifying a set of coefficients associated with the codebook based on the received set of CSI-RS resources;
• and
• transmitting, to the network entity, a CSI report on a physical uplink control channel (“PUCCH”) or a physical uplink shared channel (“PUSCH”) and based on the codebook type, the CSI report comprising CSI and the set of coefficients, wherein to transmit the CSI report on the PUCCH is based on a value of a sub-configuration of the CSI reporting configuration.

A processor for channel state information (“CSI”) reporting in a user equipment (“UE”), the processor comprising:

• at least one controller coupled with at least one memory and configured to cause the UE to:
• receive, from a network entity, a channel state information (“CSI”) reporting configuration comprising a codebook type associated with a precoding matrix;
• receive, from the network entity, CSI reference signals (“CSI-RS”) over a set of CSI-RS resources based on the CSI reporting configuration;
• and
• identify a set of coefficients associated with the codebook based on the received set of CSI-RS resources, and
• transmit, to the network entity, a CSI report on a physical uplink control channel (“PUCCH”) or a physical uplink shared channel (“PUSCH”), and based on the codebook type, the CSI report comprising CSI and the set of coefficients, wherein to transmit the CSI report on the PUCCH is based on a value of a sub-configuration of the CSI reporting configuration.