# US 12,764,744 B2 · Method and apparatus for time domain resource allocation (TDRA) of physical downlink shared channel (PDSCH) 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 12,764,744 B2 - Document ID: US12764744B2 - Status: Granted - Kind: B2 - Application number: 18/775,594 - Filed: 2024-07-17 - Published: 2024-11-07 - Granted: 2026-10-13 - Earliest claimed: 2018-07-31 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Duckhyun Bae; Yunjung Yi - Web page: https://patentgrep.com/patent/US12764744B2 ## CPC - H04W 72/1273: of downlink data flows - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present disclosure provides a method of being allocated, by a user equipment (UE), a resource via downlink control information (DCI) in a wireless communication system. Specifically, a UE receives, from a base station, a radio resource control (RRC) message including list information associated with a plurality of time-domain resource allocation (TDRA) tables, and receives, from the base station, a DCI in order to be allocated a resource on a time domain. Here, the resource on the time-domain is allocated according to one TDRA table among the plurality of TDRA tables, based on the DCI and the one TDRA table is selected among the plurality of TDRA tables, based on a configuration of the DCI and/or a specific field included in the DCI. ## Claims ### Claim 1 A method performed by a base station (BS) in a wireless communication system, the method comprising: transmitting, to a user equipment (UE), downlink control information (DCI) for allocation of a resource for a physical downlink shared channel (PDSCH) in time-domain, wherein the DCI includes a field for an entry among entries included in a time-domain resource allocation (TDRA) table, wherein a value of the field is related to an index value of the entry based on the field, wherein a location of a first symbol of the resource for the PDSCH in the time-domain is relative to (i) a first symbol of a physical downlink control channel (PDCCH) related to the PDSCH, based on that the value of the field is included in a specific value range, and wherein the location of the first symbol of the resource for the PDSCH in the time-domain is relative to (ii) a first symbol in a slot related to the PDSCH, based on that the value of the field is included in a range other than the specific value range. ### Claim 2 (depends on 1) The method of claim 1, wherein the first symbol of the PDCCH is a symbol from which a resource for the PDCCH in the time-domain starts. ### Claim 3 (depends on 2) The method of claim 2, wherein each of the entries included in the TDRA table is related to at least one of (i) start symbol information related to the symbol from which the resource for the PDSCH in the time-domain starts, (ii) duration information related to a symbol duration of the resource for the PDSCH in the time-domain, or (iii) mapping type information related to a type in which a demodulation reference signal (DMRS) is mapped on a resource. ### Claim 4 (depends on 1) The method of claim 1, wherein the field included in the DCI indicates one of (i) the entries included in the TDRA table or (ii) entries included in another TDRA table configured differently from the TDRA table, and wherein the resource for the PDSCH in the time-domain is allocated based on one TDRA table which is from among (i) the TDRA table and (ii) the another TDRA table, based on whether the value of the field is included in a specific value range. ### Claim 5 (depends on 4) The method of claim 4, wherein the resource for the PDSCH in the time-domain is allocated based on the another TDRA table, based on that the value of the field is included in the specific value range, and wherein the resource in the time-domain is allocated based on the TDRA table, based on that the value of the field is included in a range other than the specific value range. ### Claim 6 (depends on 5) The method of claim 5, wherein entries included in the another TDRA table are related to information different from information related to entries included in the TDRA table. ### Claim 7 (depends on 6) The method of claim 6, wherein each of the entries included in the another TDRA table is related to at least one of (i) symbol offset information related to a time offset value from a last symbol of the PDCCH, (ii) duration information related to a symbol duration of the resource in the time-domain, or (iii) mapping type information related to a type in which a DMRS is mapped on a resource. ### Claim 8 (depends on 1) The method of claim 1, wherein the resource in the time-domain is allocated further based on (i) a Radio Network Temporary Identifier (RNTI) for scheduling the resource in the time-domain or (ii) a Modulation Coding Scheme (MCS) for scheduling the resource in the time-domain. ### Claim 9 A base station (BS) in a wireless communication system, the BS comprising: a radio frequency (RF) module configured to transmit and receive a radio signal; and a processor functionally connected to the RF module, wherein the processor is configured to control the RF module to: transmit, to a user equipment (UE), downlink control information (DCI) for allocation of a resource for a physical downlink shared channel (PDSCH) in time-domain, wherein the DCI includes a field for an entry among entries included in a time-domain resource allocation (TDRA) table, wherein a value of the field is related to an index value of the entry based on the field, wherein a location of a first symbol of the resource for the PDSCH in the time-domain is relative to (i) a first symbol of a physical downlink control channel (PDCCH) related to the PDSCH, based on that the value of the field is included in a specific value range, and wherein the location of the first symbol of the resource for the PDSCH in the time-domain is relative to (ii) a first symbol in a slot related to the PDSCH, based on that the value of the field is included in a range other than the specific value range. ### Claim 10 (depends on 9) The BS of claim 9, wherein the first symbol of the PDCCH is a symbol from which a resource for the PDCCH in the time-domain starts. ### Claim 11 (depends on 10) The BS of claim 10, wherein each of the entries included in the TDRA table is related to at least one of (i) start symbol information related to the symbol from which the resource for the PDSCH in the time-domain starts, (ii) duration information related to a symbol duration of the resource for the PDSCH in the time-domain, or (iii) mapping type information related to a type in which a demodulation reference signal (DMRS) is mapped on a resource. ### Claim 12 (depends on 9) The BS of claim 9, wherein the field included in the DCI indicates one of (i) the entries included in the TDRA table or (ii) entries included in another TDRA table configured differently from the TDRA table, and wherein the resource for the PDSCH in the time-domain is allocated based on one TDRA table which is from among (i) the TDRA table and (ii) the another TDRA table, based on whether the value of the field is included in a specific value range. ### Claim 13 (depends on 12) The BS of claim 12, wherein the resource for the PDSCH in the time-domain is allocated based on the another TDRA table, based on that the value of the field is included in the specific value range, and wherein the resource in the time-domain is allocated based on the TDRA table, based on that the value of the field is included in a range other than the specific value range. ### Claim 14 (depends on 13) The BS of claim 13, wherein entries included in the another TDRA table are related to information different from information related to entries included in the TDRA table. ### Claim 15 (depends on 14) The BS of claim 14, wherein each of the entries included in the another TDRA table is related to at least one of (i) symbol offset information related to a time offset value from a last symbol of the PDCCH, (ii) duration information related to a symbol duration of the resource in the time-domain, or (iii) mapping type information related to a type in which a DMRS is mapped on a resource. ### Claim 16 (depends on 9) The BS of claim 9, wherein the resource in the time-domain is allocated further based on (i) a Radio Network Temporary Identifier (RNTI) for scheduling the resource in the time-domain or (ii) a Modulation Coding Scheme (MCS) for scheduling the resource in the time-domain.