# US 2014/0153531 A1 · Method and apparatus for transmitting control information in a wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153531 A1 - Document ID: US20140153531A1 - Status: Published application - Kind: A1 - Application number: 14/233,450 - Filed: 2012-07-26 - Published: 2014-06-05 - Earliest claimed: 2011-07-26 - Assignees: LG Electronics Inc. - Inventors: Hyunsoo Ko; Kitae Kim; Jaehoon Chung - Web page: https://patentgrep.com/patent/US20140153531A1 ## CPC - H04L 5/0092: {Indication of how the channel is divided} - H04L 1/1819: {with retransmission of additional or different redundancy} - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract One embodiment of the present invention relates to a method for transmitting control information by a base station, comprising the steps of: transmitting data through a physical downlink shared channel (PDSCH); and receiving a receipt acknowledgement in response to said data in the 4th subframe following the subframe in which said data is transmitted. When downlink control information that indicates said PDSCH is transmitted in a resource region not including a resource indicated by a physical control format indication channel, the downlink control information is transmitted in kth subframe prior to the subframe in which the PDSCH is transmitted. ## Claims ### Claim 1 A method of transmitting control information, which is transmitted by an eNode B in a wireless communication system, comprising the steps of: transmitting a data on a physical downlink shared channel (PDSCH); and receiving a reception confirmation response for the data in a 4th following subframe from a subframe in which the data is transmitted, wherein if downlink control information (DCI) indicating the PDSCH is transmitted in a resource region except a resource indicated by a physical control format indication channel, the DCI is transmitted in a kth preceding subframe of a subframe in which the PDSCH is transmitted. ### Claim 2 (depends on 1) The method of claim 1, wherein the k is determined in consideration of at least one selected from the group consisting of a cell size, a processing time of a user equipment (UE), and a position of the UE within a cell. ### Claim 3 (depends on 1) The method of claim 1, wherein the DCI comprises allocation information of a resource block to which the PDSCH is transmitted thereto. ### Claim 4 (depends on 1) The method of claim 1, wherein the DCI is valid until a subframe to which the PDSCH is transmitted thereto. ### Claim 5 (depends on 1) The method of claim 1, wherein the DCI is transmitted in a manner of being precoded together with a UE-specific reference signal. ### Claim 6 A method of receiving control information, which is received by a user equipment (UE) in a wireless communication system, comprising the steps of: receiving a data on a physical downlink shared channel (PDSCH); and transmitting a reception confirmation response for the data in a 4th following subframe from a subframe in which the data is transmitted, wherein if downlink control information (DCI) indicating the PDSCH is transmitted in a resource region except a resource indicated by a physical control format indication channel, the DCI is received in a subframe immediately before a subframe in which the PDSCH is received. ### Claim 7 An eNode B in a wireless communication system, comprising: a transmission module; and a processor, the processor configured to transmit a data a data on a physical downlink shared channel (PDSCH), the processor configured to receive a reception confirmation response for the data in a 4th following subframe from a subframe in which the data is transmitted, wherein if downlink control information (DCI) indicating the PDSCH is transmitted in a resource region except a resource indicated by a physical control format indication channel, the DCI is transmitted in a kth preceding subframe of a subframe in which the PDSCH is transmitted. ### Claim 8 A method of transmitting control information, which is transmitted by an eNode B in a wireless communication system, comprising the steps of: transmitting a physical downlink control channel (PDCCH); and receiving a data in a 4th following subframe from a subframe in which the PDCCH is transmitted, wherein if downlink control information (DCI) on a resource to which the data is transmitted thereto is transmitted in a resource region except a resource indicated by a physical control format indication channel, the DCI is transmitted in a kth preceding subframe of a subframe in which the PDCCH is transmitted. ### Claim 9 (depends on 8) The method of claim 8, wherein the k is determined in consideration of at least one selected from the group consisting of a cell size, a processing time of a user equipment (UE), and a position of the UE within a cell. ### Claim 10 (depends on 8) The method of claim 8, wherein the DCI comprises grant information of a resource block to which the data is transmitted thereto. ### Claim 11 (depends on 10) The method of claim 10, wherein the grant information of the resource block indicates contiguous resource blocks. ### Claim 12 (depends on 8) The method of claim 8, wherein the DCI is transmitted in a manner of being precoded together with a UE-specific reference signal. ### Claim 13 An eNode B in a wireless communication system, comprising: a transmission module; and a processor, the processor configured to transmit a physical downlink control channel (PDCCH), the processor configured to receive a data in a 4th following subframe from a subframe in which the PDCCH is transmitted, wherein if downlink control information (DCI) on a resource to which the data is transmitted thereto is transmitted in a resource region except a resource indicated by a physical control format indication channel, the DCI is transmitted in a kth preceding subframe of a subframe in which the PDCCH is transmitted.