Apparatus and method for managing resource of radio unit of base station in wireless communication system

A method performed by a digital unit (DU) in a wireless communication system, the method comprising:

• receiving, from a radio unit (RU), a first message comprising a value indicating a maximum number of resource element (RE) mask for a section;
• and
• transmitting, to the RU, a second message generated based on the value,
• wherein the maximum number of the RE mask for the section is a number of at least one pair of the RE mask and a section identifier (ID), and
• wherein the RE mask indicates at least one RE associated with one beam within the section.

A radio unit (RU) in a wireless communication system, the RU comprising:

• a transceiver;
• and
• a controller coupled with the transceiver,
• and configured to:
• transmit, to a digital unit (DU), a first message comprising a value indicating a maximum number of resource element (RE) mask for a section, and
• receive, from the DU, a second message generated based on the value,
• wherein the maximum number of the RE mask for the section is a number of at least one pair of the RE mask and a section identifier (ID), and
• wherein the RE mask indicates at least one RE associated with one beam within the section.

A digital unit (DU) in a wireless communication system, the DU comprising:

• a transceiver;
• and
• a controller coupled with the transceiver, and configured to:
• receive, from a radio unit (RU), a first message comprising a value indicating a maximum number of resource element (RE) mask for a section, and
• transmit, to the RU, a second message generated based on the value,
• wherein the maximum number of the RE mask for the section is a number of at least one pair of the RE mask and a section identifier (ID), and
• wherein the RE mask indicates at least one RE associated with one beam within the section.