METHOD FOR COMMUNICATING USING LARGE-SCALE ANTENNA IN MULTIPLE CELL ENVIRONMENT

摘要

Disclosed is a communication method using a large-scale antenna in a multi-cell environment. A base station classifies a plurality of terminals within a cell into a cell-centered terminal group and a cell-boundary terminal group according to a preset reference, transmits downlink pilot signals to each of the classified groups, receives a first precoding matrix indicator (PMI) regarding a cell to which each terminal belongs from each terminal belonging to the cell-boundary terminal group and a second PMI regarding an interference signal from an adjacent cell, and subsequently generates interference information between multiple cells on the basis of the first PMI and the second PMI. Thus, information exchange through controlling interference between base stations can be minimized.