Method and apparatus for relaying data in wireless communication system based on TDD

A wireless station for receiving signals, the wireless station comprising:

• a transceiver;
• and
• a processor configured to:
• control the transceiver to receive, from a base station, a control signal,
• wherein the control signal is received on a first subframe indicated as a downlink (DL) subframe by a first time division duplex (TDD) uplink-downlink (UL-DL) subframe configuration,
• wherein the control signal includes a second TDD UL-DL subframe configuration,
• wherein the second TDD UL-DL subframe configuration allows at least one UL subframe indicated by the first TDD UL-DL subframe configuration, except for one or more DL subframes indicated by the first TDD UL-DL subframe configuration, to be reconfigured as a TDD DL subframe, and
• wherein the at least one UL subframe indicated by the first TDD UL-DL subframe configuration is different from a TDD special subframe indicated by the first TDD UL-DL subframe configuration,
• control the transceiver to receive, from the base station, DL data on a second subframe which was indicated as a TDD UL subframe by the first TDD UL-DL subframe configuration but is currently reconfigured as a TDD DL subframe by the second TDD UL-DL subframe configuration of the control signal, and
• control the transceiver to transmit, to the base station, a first UL data on a first TDD UL subframe,
• wherein the first TDD UL subframe on which the first UL data is transmitted is different from the TDD UL subframe currently reconfigured as the TDD DL subframe by the second TDD UL-DL subframe configuration of the control signal,
• wherein each of the first and second TDD UL-DL subframe configurations comprises 10 subframes, and
• wherein the control signal corresponds to at least one of a physical layer signal and a radio resource control (RRC) signal.