METHOD FOR PERFORMING A HARQ OPERATION IN A RADIO COMMUNICATIONS SYSTEM, AND METHOD AND APPARATUS FOR ALLOCATION OF SUBFRAMES

摘要

A subframe allocation method in a radio communications system for performing communications by using a radio frame including multiple subframes comprises: selecting a backhaul downlink subframe for a base station to transmit a signal to a relay station; and if the selected backhaul downlink subframe is one of restricted subframes, allocating the backhaul downlink subframe to a substitute subframe, not to the restricted subframes, wherein the restricted subframes are those in which essential information to be transmitted from the relay station to a terminal is carried. In this manner, restrictions that are present in a link between a base station and a relay station are overcome to allow performance of a HARQ operation, and the efficiency of radio resource allocation can be improved.