Backhaul downlink signal decoding method of relay station and relay station using same

摘要

A method of decoding a backhaul downlink signal of a relay station is provided. The method includes: receiving by the relay station a transmission rank value for a backhaul downlink from a base station through a high-layer signal; receiving control information from the base station through a control region; and decoding the control information, wherein the transmission rank value for the backhaul downlink is a transmission rank value assumed when the relay station decodes the control information, and wherein the control information is mapped to a resource element which does not overlap with a dedicated reference signal resource element mapped to the control region by assuming the transmission rank value for the backhaul downlink.

主权项

1. A method of decoding a backhaul downlink signal of a relay node (RN), the method comprising:
receiving a higher layer signal indicating a maximum transmission rank from a base station (BS); receiving control information through a relay control channel from the BS; and decoding the control information, wherein the control information is mapped to resource elements which do not overlap with user equipment-specific reference signal (URS) resource elements in a control region which is used for the relay control channel transmission of the BS, and wherein the URS resource elements are reserved resource elements for URSs according to the maximum transmission rank.