# US 12,184,427 B2 · Method and apparatus for transmitting and receiving downlink data corresponding to resource allocation information and indicator in mobile communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,427 B2 - Document ID: US12184427B2 - Status: Granted - Kind: B2 - Application number: 16/320,858 - Filed: 2017-07-28 - Published: 2019-05-30 - Granted: 2024-12-31 - Earliest claimed: 2016-07-29 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Seunghoon Choi; Jeongho Yeo; Youngwoo Kwak; Taehyoung Kim; Donghan Kim; Jinyoung Oh; Hoondong Noh; Yongjun Kwak - Web page: https://patentgrep.com/patent/US12184427B2 ## CPC - H04L 1/1854: {Scheduling and prioritising arrangements} - H04B 17/24: with feedback of measurements to the transmitter - H04J 11/00: Orthogonal multiplex systems, {e.g. using WALSH codes}(H04J13/00 takes precedence) - H04L 1/0067: {Rate matching (H04L1/0013 and H04L1/08 take precedence)} - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1887: {Scheduling and prioritising arrangements} - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 72/1273: of downlink data flows - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 72/535: {based on resource usage policies} - H04L 27/2602: {Signal structure} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Disclosed are a communication method for merging, with an IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure can be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. The present embodiment provides a method and an apparatus for a delay reduction mode operation of a base station and a terminal, and the base station of the present invention can: transmit, to the terminal, first information related to hybrid ARQ (HARQ) timing by means of higher layer signaling; transmit, to the terminal, scheduling information and second information related to the HARQ timing; transmit, to the terminal, data scheduled by the scheduling information; and receive, from the terminal, positive reception acknowledgement or negative reception acknowledgement (ACK/NACK) information with respect to the data according to the HARQ timing, which is determined on the basis of the first information and the second information. ## Claims ### Claim 1 A method performed by a base station in a wireless communication system, the method comprising: transmitting information on a plurality of control channel resources on radio resource control (RRC) signaling, the information on the plurality of control channel resources indicating a specific pattern on a frequency domain and on a time domain of each control channel resource; transmitting, to a terminal, downlink control information (DCI), the DCI including resource allocation information indicating a resource for downlink data and an indicator for a rate matching of the downlink data, wherein the indicator indicates whether a control channel resource which overlaps with the resource for the downlink data is unavailable for the downlink data, and wherein the control channel resource is one of the plurality of control channel resources and is for another terminal; and transmitting the downlink data corresponding to the resource allocation information and the indicator, wherein in case that the indicator indicates that the control channel resource is unavailable for the downlink data, the downlink data is rate-matched not to be mapped on the control channel resource. ### Claim 2 (depends on 1) The method of claim 1, wherein in case that the indicator indicates the control channel resource is available for the downlink data, the downlink data is mapped on the control channel resource. ### Claim 3 (depends on 1) The method of claim 1, wherein the downlink data is not mapped on other control channel resources. ### Claim 4 A method performed by a terminal in a wireless communication system, the method comprising: receiving information on a plurality of control channel resources on radio resource control (RRC) signaling, the information on the plurality of control channel resources indicating a specific pattern on a frequency domain and on a time domain of each control channel resource; receiving, from a base station, downlink control information (DCI), the DCI including resource allocation information indicating a resource for downlink data and an indicator for a rate matching of the downlink data, wherein the indicator indicates whether a control channel resource which overlaps with the resource for the downlink data is unavailable for the downlink data, and wherein the control channel resource is one of the plurality of control channel resources and is for another terminal; and receiving the downlink data based on the resource allocation information and the indicator, wherein in case that the indicator indicates that the control channel resource is unavailable for the downlink data, the downlink data is rate-matched not to be mapped on the control channel resource. ### Claim 5 (depends on 4) The method of claim 4, wherein in case that the indicator indicates that the control channel resource is available for the downlink data, the downlink data is mapped on the control channel resource. ### Claim 6 (depends on 4) The method of claim 4, wherein the downlink data is not mapped on other control channel resources. ### Claim 7 A base station in a wireless communication system, the base station comprising: a transceiver; and a controller coupled with the transceiver and configured to: transmit information on a plurality of control channel resources on radio resource control (RRC) signaling, the information on the plurality of control channel resources indicating a specific pattern on a frequency domain and on a time domain of each control channel resource, transmit, to a terminal, downlink control information (DCI), the DCI including resource allocation information indicating a resource for downlink data and an indicator for a rate matching of the downlink data, wherein the indicator indicates whether a control channel resource which overlaps with the resource for the downlink data is unavailable for the downlink data, and wherein the control channel resource is one of the plurality of control channel resources and is for another terminal, and transmit the downlink data corresponding to the resource allocation information and the indicator, wherein in case that the indicator indicates that the control channel resource is unavailable for the downlink data, the downlink data is rate-matched not to be mapped on the control channel resource. ### Claim 8 (depends on 7) The base station of claim 7, wherein in case that the indicator indicates the control channel resource is available for the downlink data, the downlink data is mapped on the control channel resource. ### Claim 9 (depends on 7) The base station of claim 7, wherein the downlink data is not mapped on other control channel resources. ### Claim 10 A terminal for receiving downlink data in a wireless communication system, the terminal comprising: a transceiver; and a controller coupled with the transceiver and configured to: receive information on a plurality of control channel resources on radio resource control (RRC) signaling, the information on the plurality of control channel resources indicating a specific pattern on a frequency domain and on a time domain of each control channel resource, receive, from a base station, downlink control information (DCI), the DCI including resource allocation information indicating a resource for downlink data and an indicator for a rate matching of the downlink data, wherein the indicator indicates whether a control channel resource which overlaps with the resource for the downlink data is unavailable for the downlink data, and wherein the control channel resource is one of the plurality of control channel resources and is for another terminal, and receive the downlink data based on the resource allocation information and the indicator, wherein in case that the indicator indicates that the control channel resource is unavailable for the downlink data, the downlink data is rate-matched not to be mapped on the control channel resource. ### Claim 11 (depends on 10) The terminal of claim 10, wherein in case that the indicator indicates that the control channel resource is available for the downlink data, the downlink data is mapped on the control channel resource. ### Claim 12 (depends on 10) The terminal of claim 10, wherein the downlink data is not mapped on other control channel resources.