Method and apparatus for transmitting and receiving signals in wireless communication system
DCFirst Claim
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1. A method for transmitting control information of a base station in a time division duplex (TDD) system using a single carrier, the method comprising:
- setting a transmit power control (TPC) command for controlling physical uplink control channel (PUCCH) transmission power of a PUCCH and acknowledgement (ACK)/not-acknowledgement (NACK) resource indicating information indicating resources for transmitting a hybrid automatic repeat request (HARQ) ACK/NACK signal on the PUCCH, in an uplink (UL) subframe; and
transmitting at least one of the TPC command and the ACK/NACK resource indicating information on a physical downlink control channel (PDCCH) in downlink (DL) subframes corresponding to the UL subframe,wherein the HARQ ACK/NACK signal for the DL subframes corresponding to the UL subframe is transmitted on the PUCCH using a PUCCH format 3,the TPC command is transmitted on the PDCCH in at least one of the DL subframes corresponding to the UL subframe, andthe ACK/NACK resource indicating information is transmitted using bits allocated in order to transmit the TPC command on the PDCCH in the DL subframes in which the TPC command is not transmitted among the DL subframes corresponding to the UL subframe.
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Abstract
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.
27 Citations
14 Claims
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1. A method for transmitting control information of a base station in a time division duplex (TDD) system using a single carrier, the method comprising:
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setting a transmit power control (TPC) command for controlling physical uplink control channel (PUCCH) transmission power of a PUCCH and acknowledgement (ACK)/not-acknowledgement (NACK) resource indicating information indicating resources for transmitting a hybrid automatic repeat request (HARQ) ACK/NACK signal on the PUCCH, in an uplink (UL) subframe; and transmitting at least one of the TPC command and the ACK/NACK resource indicating information on a physical downlink control channel (PDCCH) in downlink (DL) subframes corresponding to the UL subframe, wherein the HARQ ACK/NACK signal for the DL subframes corresponding to the UL subframe is transmitted on the PUCCH using a PUCCH format 3, the TPC command is transmitted on the PDCCH in at least one of the DL subframes corresponding to the UL subframe, and the ACK/NACK resource indicating information is transmitted using bits allocated in order to transmit the TPC command on the PDCCH in the DL subframes in which the TPC command is not transmitted among the DL subframes corresponding to the UL subframe. - View Dependent Claims (2, 3, 4)
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5. A method for transmitting a hybrid automatic repeat request (HARQ) acknowledgement (ACK)/not-acknowledgement (NACK) signal of a user equipment in a time division duplex (TDD) system using a single carrier, the method comprising:
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receiving a transmit power control (TPC) command for controlling physical uplink control channel (PUCCH) transmission power of a PUCCH and ACK/NACK resource indicating information indicating resources for transmitting the HARQ ACK/NACK signal on the PUCCH; and transmitting the PUCCH based on the TPC command and the ACK/NACK resource indicating information, wherein at least one of the TPC command and the ACK/NACK resource indicating information is received in downlink (DL) subframes corresponding to a uplink (UL) subframe in which the PUCCH is transmitted, the TPC command is received on a physical downlink control channel (PDCCH) in at least one of the DL subframes corresponding to the UL subframe, the ACK/NACK resource indicating information is received using bits allocated in order to transmit the TPC command in the DL subframes in which the TPC command is not transmitted among the DL subframes corresponding to the UL subframe, and in the transmitting of the PUCCH, the HARQ ACK/NACK signal for the DL subframes corresponding to the UL subframe is transmitted on the PUCCH using a PUCCH format 3. - View Dependent Claims (6, 7, 8)
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9. An apparatus for transmitting control information in a time division duplex (TDD) system using a single carrier, the apparatus comprising:
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a format determining unit determining a physical uplink control channel (PUCCH) format of a PUCCH in a uplink (UL) subframe; a transceiving unit performing transmission on a physical downlink control channel (PDCCH) in downlink (DL) subframes corresponding to the UL subframe; a resource allocating unit setting acknowledgement (ACK)/not-acknowledgement (NACK) resource indicating information indicating resources for transmitting a hybrid automatic repeat request (HARQ) ACK/NACK signal on the PUCCH; and a controlling unit transmitting at least one of a transmit power control (TPC) command for controlling the PUCCH transmission power of the PUCCH and the ACK/NACK resource indicating information in the UL subframe through the transceiving unit, wherein the HARQ ACK/NACK signal for the DL subframes corresponding to the UL subframe is received on the PUCCH in the UL subframe using the PUCCH format determined by the format determining unit, the controlling unit transmits the TPC command on the PDCCH in at least one of the DL subframes corresponding to the UL subframe and transmits the ACK/NACK resource indicating information using bits allocated in order to transmit the TPC command on the PDCCH in the DL subframes in which the TPC command is not transmitted among the DL subframes corresponding to the UL subframe, and the format determining unit determines that the PUCCH format is a PUCCH format 3 when at least two of the DL subframes correspond to the UL subframe. - View Dependent Claims (10, 11)
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12. An apparatus for transmitting a hybrid automatic repeat request (HARQ) acknowledgement (ACK)/not-acknowledgement (NACK) signal in a time division duplex (TDD) system using a single carrier, the apparatus comprising:
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a transceiving unit transceiving information; a resource determining unit determining resources used to transmit the HARQ ACK/NACK signal for downlink (DL) subframes corresponding to a uplink (UL) subframe on a physical uplink control channel (PUCCH) in the UL subframe; and a controlling unit controlling transmission of the UL subframe, wherein the transceiving unit receives a transmit power control (TPC) command on a physical downlink control channel (PDCCH) in at least one of the DL subframes corresponding to the UL subframe and receives ACK/NACK resource indicating information transmitted using bits allocated in order to transmit the TPC command on the PDCCH in the DL subframes in which the TPC command is not transmitted among the DL subframes corresponding to the UL subframe, the controlling unit controls transmission power of the PUCCH based on the TPC command, the resource determining unit determines that a resource indicated by the ACK/NACK resource indicating information is a resource used to transmit the HARQ ACK/NACK signal, and the ACK/NACK resource indicating information indicates a resource of a PUCCH format 3 when the number of the DL subframes corresponding to the UL subframe is two or more. - View Dependent Claims (13, 14)
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Specification