A method by a base station (610, 780, 870) of a plurality of base stations in a wireless communication system, the method comprising: receiving, from a terminal, a sounding reference signal, the sounding reference signal being received by neighboring base stations(620, 630, 640, 770) of the plurality of base stations; obtaining a reception power of the sounding reference signal received at each of the base station (610, 780, 870) and the neighboring base stations (620, 630, 640, 770); ordering the reception power for each of the base station (610, 780, 870) and the neighboring base stations (620, 630, 640, 770) from highest to lowest reception power based on the comparison of the reception powers; generating (530, 540) channel status information, CSI, configuration information based on a result of the order; transmitting the CSI configuration information to the terminal; and receiving channel quality information, CQI, based on the CSI configuration information from the terminal, wherein the CSI configuration information comprises CSI reference signal configurations, CSI interference measurement configurations, and CSI process configurations, wherein the CSI reference signal configurations comprise N CSI reference signal configurations which are configured for measuring transmission signal powers of N base stations with highest reception power of the sounding reference signal among the base station (610, 780, 870) and neighboring base stations (620, 630, 640, 770) based on the result of comparison of each reception power of the sounding reference signal, and wherein the CSI interference measurement configurations comprise one CSI interference measurement configuration which is configured for measuring transmission signal powers of all of the base station (610, 780, 870) and neighboring base stations (620, 630, 640, 770),wherein the CSI process configurations comprise N CSI process configurations as combinations of the CSI reference signal configurations and the CSI interference measurement configurations, and wherein the CQI generated by the terminal is based on a signal-to-interference-plus-noise ratio measured by the terminal based on the CSI configuration information. receiving, from a terminal, a sounding reference signal, the sounding reference signal being received by neighboring base stations(620, 630, 640, 770) of the plurality of base stations; obtaining a reception power of the sounding reference signal received at each of the base station (610, 780, 870) and the neighboring base stations (620, 630, 640, 770); ordering the reception power for each of the base station (610, 780, 870) and the neighboring base stations (620, 630, 640, 770) from highest to lowest reception power based on the comparison of the reception powers; generating (530, 540) channel status information, CSI, configuration information based on a result of the order; transmitting the CSI configuration information to the terminal; and wherein the CSI configuration information comprises CSI reference signal configurations, CSI interference measurement configurations, and CSI process configurations, wherein the CSI reference signal configurations comprise N CSI reference signal configurations which are configured for measuring transmission signal powers of N base stations with highest reception power of the sounding reference signal among the base station (610, 780, 870) and neighboring base stations (620, 630, 640, 770) based on the result of comparison of each reception power of the sounding reference signal, and wherein the CSI interference measurement configurations comprise one CSI interference measurement configuration which is configured for measuring transmission signal powers of all of the base station (610, 780, 870) and neighboring base stations (620, 630, 640, 770),wherein the CSI process configurations comprise N CSI process configurations as combinations of the CSI reference signal configurations and the CSI interference measurement configurations, and wherein the CQI generated by the terminal is based on a signal-to-interference-plus-noise ratio measured by the terminal based on the CSI configuration information.