Method and apparatus for acquiring control information in wireless communication system
First Claim
1. A method for acquiring control information of a user equipment (UE) in a wireless communication system, the method comprising:
- receiving Enhanced-Physical Downlink Control Channel (E-PDCCH) configuration information from a base station (BS); and
transmitting an acknowledgement/negative acknowledgment (ACK/NACK) response to the E-PDCCH configuration information,wherein, during a predetermined time after the transmission of the ACK/NACK response, the user equipment (UE) performs blind decoding for downlink control information (DCI) in a common search space of a physical downlink control channel (PDCCH) resource region and in a search space of an E-PDCCH resource region,wherein the DCI is received through the search space of the E-PDCCH resource region, andwherein the predetermined time starts from a next subframe of a subframe in which the ACK/NACK response is transmitted, and ends at a subframe in which a response to the received DCI is transmitted.
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Abstract
A method for acquiring control information in a wireless communication system according to one embodiment of the present invention includes the steps of: receiving E-PDCCH (Enhanced-Physical Downlink Control Channel) configuration information from a base station (BS); and transmitting a confirmation response for the E-PDCCH configuration information. The terminal performs blind decoding for downlink control information in a common search space on a PDCCH (Physical Downlink Control Channel) resource region and a search space on the E-PDCCH during a predetermined period after transmitting the confirmation response.
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Citations
12 Claims
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1. A method for acquiring control information of a user equipment (UE) in a wireless communication system, the method comprising:
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receiving Enhanced-Physical Downlink Control Channel (E-PDCCH) configuration information from a base station (BS); and transmitting an acknowledgement/negative acknowledgment (ACK/NACK) response to the E-PDCCH configuration information, wherein, during a predetermined time after the transmission of the ACK/NACK response, the user equipment (UE) performs blind decoding for downlink control information (DCI) in a common search space of a physical downlink control channel (PDCCH) resource region and in a search space of an E-PDCCH resource region, wherein the DCI is received through the search space of the E-PDCCH resource region, and wherein the predetermined time starts from a next subframe of a subframe in which the ACK/NACK response is transmitted, and ends at a subframe in which a response to the received DCI is transmitted. - View Dependent Claims (2, 3, 4, 5)
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6. A method for transmitting control information of a base station (BS) in a wireless communication system, the method comprising:
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transmitting Enhanced-Physical Downlink Control Channel (E-PDCCH) configuration information; and receiving an acknowledgement/negative acknowledgement (ACK/NACK) response to the E-PDCCH configuration information, wherein, during a predetermined time after the reception of the ACK/NACK response, the base station (BS) transmits downlink control information (DCI) in a common search space of a physical downlink control channel (PDCCH) resource region and in a search space of an E-PDCCH resource region, and wherein the predetermined time starts from a next subframe of a subframe in which the ACK/NACK response is received, and ends at a subframe in which a response to the transmitted DCI is received.
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7. A method for acquiring control information of a user equipment (UE) in a wireless communication system, the method comprising:
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receiving Enhanced-Physical Downlink Control Channel (E-PDCCH) configuration information from a base station (BS); and transmitting an acknowledgement/negative acknowledgement (ACK/NACK) response to the E-PDCCH configuration information, wherein, during a predetermined time after the transmission of the ACK/NACK response, the user equipment (UE) performs blind decoding for downlink control information (DCI) in a common search space of a physical downlink control channel (PDCCH) resource region and in a search space of an E-PDCCH resource region, wherein the DCI is received through the search space of the PDCCH resource region, wherein the predetermined time starts from a next subframe of a subframe in which the ACK/NACK response is transmitted, and ends at a subframe in which a response to the received DCI is transmitted. - View Dependent Claims (8, 9, 10, 11)
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12. A method for transmitting control information of a base station (BS) in a wireless communication system, the method comprising:
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transmitting Physical Downlink Control Channel (PDCCH) configuration information; and receiving an acknowledgement/negative acknowledgement (ACK/NACK) response to the PDCCH configuration information, wherein, during a predetermined time after the reception of the ACK/NACK response, the base station (BS) transmits downlink control information (DCI) in a common search space of an E-PDCCH resource region and in a search space of a PDCCH resource region, and wherein the predetermined time starts from a next subframe of a subframe in which the ACK/NACK response is received, and ends at a subframe in which a response to the transmitted DCI is received.
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Specification