Patent ID: 11870567
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An operation method of a base station in a communication system, the operation method comprising:
transmitting first indication information to a terminal, the first indication information indicating use of a first channel quality information (CQI) table among CQI tables;
transmitting a first reference signal to the terminal; and
receiving first channel state information (CSI) from the terminal, the first CSI including a first CQI index selected within the first CQI table based on the first reference signal,
wherein the CQI tables include the first CQI table and a second CQI table, and a spectral efficiency indicated by at least one CQI index within the first CQI table is identical to a spectral efficiency indicated by at least one CQI index within the second CQI table, and
wherein the first indication information further includes triggering information indicating scheme of changing a CQI table used for CSI reporting.