Method and apparatus for channel quality indicator (CQI) and channel state information (CSI) reporting

A base station (BS) comprising:

• a processor configured to generate configuration information for a channel state information (CSI) reporting;
• and
• a transceiver operably connected to the processor, the transceiver configured to:
• transmit, to a UE, the configuration information;
• and
• receive, from the UE, a CSI report that includes a channel quality indicator (CQI),
• wherein:
• the configuration information includes a selection of a CQI table and a target block error rate (BLER),
• a first CQI is reported when a reported rank indicator (RI) value is 4 or less,
• when the reported RI value is greater than 4, the first CQI and a second CQI are each reported, and
• the second CQI is of a same payload size as that of the first CQI.

A method for operating a user equipment (UE), the method comprising:

• receiving and decoding configuration information for reporting channel state information (CSI);
• and
• calculating and transmitting the CSI including a channel quality indicator (CQI);
• wherein:
• the configuration information includes a selection of a CQI table and a target block error rate (BLER),
• a first CQI is reported when a reported rank indicator (RI) value is 4 or less,
• when the reported RI value is greater than 4, the first CQI and a second CQI are each reported, and
• the second CQI is of a same payload size as that of the first CQI.