Method and apparatus for transmission and reception of information

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

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• receive, from a base station, configuration information on a channel state information (CSI) report, wherein the configuration information includes information on one or more sub-configurations for the CSI report,
• receive, from the base station, a medium access control (MAC) control element (CE) for activating at least one sub-configuration among the one or more sub-configurations, and
• transmit, to the base station, the CSI report for the at least one sub-configuration based on the MAC CE.

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

• transmitting, to a user equipment (UE), configuration information on a channel state information (CSI) report, wherein the configuration information includes information on one or more sub-configurations for the CSI report;
• transmitting, to the UE, a medium access control (MAC) control element (CE) for activating at least one sub-configuration among the one or more sub-configurations;
• and
• receiving, from the UE, the CSI report for the at least one sub-configuration based on the MAC CE.

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

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• transmit, to a user equipment (UE), configuration information on a channel state information (CSI) report, wherein the configuration information includes information on one or more sub-configurations for the CSI report,
• transmit, to the UE, a medium access control (MAC) control element (CE) for activating at least one sub-configuration among the one or more sub-configurations, and
• receive, from the UE, the CSI report for the at least one sub-configuration based on the MAC CE.