Apparatus and method for managing radio resources in mobile communication system

An operation method of a terminal in a mobile communication system, the operation method comprising:

• receiving from a base station information indicating usage patterns for a plurality of scheduling region maps, each of the plurality of scheduling region maps consisting of a plurality of resource regions;
• receiving from the base station information indicating a first usage pattern among the usage patterns;
• receiving first resource allocation information indicating a first resource region allocated to the terminal among the plurality of resource regions constituting the plurality of scheduling region maps according to the first usage pattern;
• receiving a first reference signal (RS) from the base station through the first resource region;
• generating a first channel state information (CSI) for the first resource region based on the first RS;
• and
• transmitting the first CSI to the base station,
• wherein the information indicating usage patterns indicates a plurality of different usage patterns for the plurality of scheduling region maps, the first usage pattern includes information instructing to use one of the plurality of scheduling region maps according to a preset time interval, and the plurality of resource regions constituting the plurality of scheduling region maps are different resource regions.

An operation method of a base station in a mobile communication system, the operation method comprising:

• transmitting information indicating a first scheduling region map consisting of a plurality of resource regions;
• transmitting to a first terminal first resource allocation information indicating a first resource region allocated to the first terminal among the plurality of resource regions constituting the first scheduling region map;
• transmitting a first reference signal (RS) to the terminal through the first resource region;
• and
• receiving from the first terminal a first channel state information (CSI) for the first resource region generated based on the first RS,
• wherein the information indicating the first scheduling region map includes information indicating the plurality of resource regions constituting the first scheduling region map.