Method and apparatus for transmitting and receiving signals in wireless communication system
An apparatus and a method for allocating resources for transmitting an HARQ ACK/NACK signal for a downlink subframe using a PUCCH format 3 in a time division duplex (TDD) system using a single carrier are provided. Since the resources are allocated through a resource indicator transmitted using a power control field transmitted on a PDCCH of the downlink subframe, the resources for transmitting the HARQ ACK/NACK signal may be allocated by effectively using resources allocated to a duplicately transferred control signal.
1. A transmitting method comprising:
setting a first transmit power control (TPC) command associated with controlling of transmission power of physical uplink control channel (PUCCH) to be transmitted in an uplink subframe and a second TPC command which indicates resources for the PUCCH to be transmitted in the uplink (UL) subframe;
transmitting first physical downlink control channel (PDCCH) and first physical downlink shared channel (PDSCH) in a first downlink (DL) subframe, the first PDCCH including the first TPC command; and
transmitting second PDCCH and second PDSCH in a second downlink (DL) subframe, the second PDCCH including the second TPC command,
wherein the transmission of the first and second PDSCHs and a reception of the PUCCH are performed on a single carrier.
2. The method of claim 1 , wherein the first and the second DL subframes associated with the UL subframe.
3. The method of claim 1 , wherein the second TPC command indicates a resource to be used for the PUCCH among allocated resources by a higher layer signaling.
4. The method of claim 1 , wherein the second TPC command is configured to indicate resources for the PUCCH in format 3.
5. A receiving method comprising:
receiving first physical downlink control channel (PDCCH) and first physical downlink shared channel (PDSCH) in a first downlink (DL) subframe, the first PDCCH including a first transmit power control (TPC) command associated with controlling of transmission power of physical uplink control channel (PUCCH); and
receiving second PDCCH and second PDSCH in a second downlink (DL) subframe, the second PDCCH including a second TPC command which indicates resources for the PUCCH in an uplink (UL) subframe,
wherein the reception of the first and second PDSCHs and a transmission of the PUCCH are performed on a single carrier, and
wherein the first and the second DL subframes are associated with the UL subframe.
6. The method of claim 5 , wherein the second TPC command indicates a resource to be used for the PUCCH among allocated resources by a higher layer signaling.
7. The method of claim 5 , wherein the second TPC command is configured to indicate resources for the PUCCH in format 3.
8. A user equipment (UE) comprising:
a transceiver to receive first physical downlink control channel (PDCCH) and first physical downlink shared channel (PDSCH) in a first downlink (DL) subframe, the first PDCCH including a first transmit power control (TPC) command associated with controlling of transmission power of physical uplink control channel (PUCCH), and to receive second PDCCH and second PDSCH in a second DL subframe, the second PDCCH including a second TPC command which indicates resources for the PUCCH in an uplink (UL) subframe;
a resource determining unit to determine resources used to transmit the PUCCH in the UL subframe; and
a controller to control a transmission of the PUCCH in the UL subframe,
wherein the reception of the first and second PDSCHs and the transmission of the PUCCH in the UL subframe are performed on a single carrier, and
wherein the first and the second DL subframes are associated with the UL subframe.
9. The UE of claim 8 , wherein the second TPC command indicates a resource to be used for the PUCCH among allocated resources by a higher layer signaling.
10. The UE of claim 8 , wherein the second TPC command is configured to indicate resources for the PUCCH in format 3.