# US 12,120,707 B2 · Method and apparatus for grant-free data transmission in 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 12,120,707 B2 - Document ID: US12120707B2 - Status: Granted - Kind: B2 - Application number: 18/346,519 - Filed: 2023-07-03 - Published: 2023-11-02 - Granted: 2024-10-15 - Earliest claimed: 2019-11-22 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Sungjin Park; Taehan Bae - Web page: https://patentgrep.com/patent/US12120707B2 ## CPC - H04L 1/1887: {Scheduling and prioritising arrangements} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/0003: {by switching between different modulation schemes} - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - H04W 72/11: Semi-persistent scheduling - H04W 72/1273: of downlink data flows - H04W 72/232: the control data signalling from the physical layer, e.g. DCI signalling - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A communication scheme and a system of converging an IoT technology and a 5th generation (5G) communication system for supporting a higher data transfer rate beyond a 4th generation (4G) system are provided. The communication scheme includes intelligent services (e.g. smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, and security and safety-related services), based on a 5G communication technology and an IoT-related technology. A method performed by a terminal in a communication system is provided. The method includes receiving, from a base station, a semi-persistent scheduling (SPS) configuration including an SPS configuration index; identifying at least one physical downlink shared channel (PDSCH) corresponding to the SPS configuration; identifying a PDSCH with a lowest SPS configuration index in case that the at least one PDSCH corresponding to the SPS configuration is overlapped in time in a slot; determining a PDSCH for data transmission based on excluding a PDSCH that is overlapped with the PDSCH with the lowest SPS configuration index from the at least one PDSCH; and receiving, from the base station, data based on the determined PDSCH, wherein the at least one PDSCH is not overlapped with a symbol indicated as an uplink in the slot. ## Claims ### Claim 1 A method performed by a terminal in a communication system, the method comprising: receiving, from a base station, a semi-persistent scheduling (SPS) configuration; and identifying an SPS physical downlink shared channel (PDSCH) in a slot based on the SPS configuration, wherein downlink control information (DCI) for SPS PDSCH release is received in the slot in case that hybrid automatic repeat request (HARQ)-acknowledge (ACK) information for the SPS PDSCH release and HARQ ACK information for the SPS PDSCH are mapped to a same physical uplink control channel (PUCCH). ### Claim 2 (depends on 1) The method of claim 1, wherein a location in a HARQ-ACK code book for the HARQ-ACK information for the SPS PDSCH release is same as the HARQ-ACK information for the SPS PDSCH. ### Claim 3 (depends on 1) The method of claim 1, wherein the SPS configuration further includes at least one of a periodicity, a number of hybrid automatic repeat request (HARQ) processes, a HARQ resource for the PUCCH, or a modulation and coding scheme (MCS) table, and wherein the SPS configuration is received through higher layer signaling. ### Claim 4 (depends on 1) The method of claim 1, wherein the receiving of the SPS PDSCH further comprises receiving, from the base station, DCI for activating the SPS PDSCH. ### Claim 5 A method performed by a base station in a communication system, the method comprising: transmitting, to a terminal, a semi-persistent scheduling (SPS) configuration; and identifying an SPS physical downlink shared channel (PDSCH) in a slot based on the SPS configuration, wherein downlink control information (DCI) for SPS PDSCH release is transmitted in the slot in case that hybrid automatic repeat request (HARQ) acknowledge (ACK) information for the SPS PDSCH release and HARQ ACK information for the SPS PDSCH are mapped to a same physical uplink control channel (PUCCH). ### Claim 6 (depends on 5) The method of claim 5, wherein a location in a HARQ-ACK code book for the HARQ-ACK information for the SPS PDSCH release is same as the HARQ-ACK information for the SPS PDSCH. ### Claim 7 (depends on 5) The method of claim 5, wherein the SPS configuration further includes at least one of a periodicity, a number of hybrid automatic repeat request (HARQ) processes, a HARQ resource for the PUCCH, or a modulation and coding scheme (MCS) table, and wherein the SPS configuration is transmitted through higher layer signaling. ### Claim 8 (depends on 5) The method of claim 5, wherein the transmitting of the SPS PDSCH further comprises transmitting, to the terminal, DCI for activating the SPS PDSCH. ### Claim 9 A terminal in a communication system, the terminal comprising: a transceiver; and a controller coupled with the transceiver and configured to: receive, from a base station, a semi-persistent scheduling (SPS) configuration, and identify an SPS physical downlink shared channel (PDSCH) in a slot based on the SPS configuration, wherein downlink control information (DCI) for SPS PDSCH release is received in the slot in case that hybrid automatic repeat request (HARQ)-acknowledge (ACK) information for the SPS PDSCH release and HARQ ACK information for the SPS PDSCH are mapped to a same physical uplink control channel (PUCCH). ### Claim 10 (depends on 9) The terminal of claim 9, wherein a location in a HARQ-ACK code book for the HARQ-ACK information for the SPS PDSCH release is same as the HARQ-ACK information for the SPS PDSCH. ### Claim 11 (depends on 9) The terminal of claim 9, wherein the SPS configuration further includes at least one of a periodicity, a number of hybrid automatic repeat request (HARQ) processes, a HARQ resource for the PUCCH, or a modulation and coding scheme (MCS) table, and wherein the SPS configuration is received through higher layer signaling. ### Claim 12 (depends on 9) The terminal of claim 9, wherein the controller is configured to receive, from the base station, DCI for activating the SPS PDSCH. ### Claim 13 A base station in a communication system, the base station comprising: a transceiver; and a controller coupled with the transceiver and configured to: transmit, to a terminal, a semi-persistent scheduling (SPS) configuration, and identify an SPS physical downlink shared channel (PDSCH) in a slot based on the SPS configuration, wherein downlink control information (DCI) for SPS PDSCH release is transmitted in the slot in case that hybrid automatic repeat request (HARQ) acknowledge (ACK) information for the SPS PDSCH release and HARQ ACK information for the SPS PDSCH are mapped to a same physical uplink control channel (PUCCH). ### Claim 14 (depends on 13) The base station of claim 13, wherein a location in a HARQ-ACK code book for the HARQ-ACK information for the SPS PDSCH release is same as the HARQ-ACK information for the SPS PDSCH. ### Claim 15 (depends on 13) The base station of claim 13, wherein the SPS configuration further includes at least one of a periodicity, a number of hybrid automatic repeat request (HARQ) processes, a HARQ resource for the PUCCH, or a modulation and coding scheme (MCS) table, and wherein the SPS configuration is transmitted through higher layer signaling. ### Claim 16 (depends on 13) The base station of claim 13, wherein the controller is configured to transmit, to the terminal, DCI for activating the SPS PDSCH.