Method and apparatus for beam management

A base station (BS) for receiving channel state information (CSI) in a wireless communication system, the BS comprising:

• a processor configured to generate CSI reporting configuration information and resource configuration information, the resource configuration information including configuration on a plurality of channel state information reference signal (CSI-RS) resources;
• and
• a transceiver operably connected to the processor, the transceiver configured to receive, from a user equipment (UE), the CSI based on the CSI reporting configuration information and the resource configuration information, the CSI including beam state information,
• wherein the resource configuration information further includes beam sweeping pattern information, and
• wherein the beam sweeping pattern information indicates whether the plurality of CSI-RS resources correspond to different transmission beams or a same transmission beam.

A method of reporting channel state information (CSI) in a wireless communication system, the method comprising:

• receiving CSI reporting configuration information and resource configuration information from a base station (BS), the resource configuration information including configuration on a plurality of channel state information reference signal (CSI-RS) resources;
• generating the CSI based on the CSI reporting configuration information and the resource configuration information;
• and
• transmitting the CSI including beam state information to the BS,
• wherein the resource configuration information further includes beam sweeping pattern information, and
• wherein the beam sweeping pattern information indicates whether the plurality of CSI-RS resources correspond to different transmission beams or a same transmission beam.