# US 12,004,204 B2 · Method for transmitting and receiving uplink data by using PUR in wireless communication system, and device for same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,204 B2 - Document ID: US12004204B2 - Status: Granted - Kind: B2 - Application number: 17/267,458 - Filed: 2019-08-08 - Published: 2021-10-14 - Granted: 2024-06-04 - Earliest claimed: 2018-08-09 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Seokmin Shin; Seonwook Kim; Changhwan Park; Hanjun Park; Joonkui Ahn; Suckchel Yang; Seunggye Hwang - Web page: https://patentgrep.com/patent/US12004204B2 ## CPC - H04W 72/53: based on regulatory allocation policies - H04W 56/0045: {compensating for timing error by altering transmission time} - H04W 56/0055: {determining timing error of reception due to propagation delay} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 76/27: Transitions between radio resource control [RRC] states - 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 specification provides a method for transmitting uplink data by using a preset uplink resource (PUR) in a wireless communication system. More specifically, the method, which is performed by a terminal, includes: a step for receiving setting information from a base station in an RRC connected state, the setting information being for transmitting uplink data by using the PUR in an RRC idle state; a step for transitioning from the RRC connected state to the RRC idle state; and a step for using the PUR to transmit the uplink data to the base station in the RRC idle state on the basis of the setting information. ## Claims ### Claim 1 A method of transmitting uplink data using a preconfigured uplink resource (PUR) in a wireless communication system, the method performed by a terminal and comprising: receiving in a radio resource control (RRC) connected state, from a base station, configuration information for transmitting the uplink data using the PUR in an RRC idle state, wherein the configuration information includes first information regarding a timing advance (TA) validity timer and second information regarding a reference signal received power (RSRP) level; transitioning from the RRC connected state to the RRC idle state; and transmitting, to the base station, the uplink data using the PUR based on the configuration information in the RRC idle state, wherein, based on i) the TA validity timer not being expired and ii) a RSRP measurement value being greater than or equal to the RSRP level, a TA for transmitting the uplink data using the PUR is determined to be valid, and wherein there is only one hybrid automatic repeat request (HARQ) process for transmitting the uplink data using the PUR. ### Claim 2 (depends on 1) The method of claim 1, wherein the configuration information includes information on a transmission interval of the uplink data and information on a number of repetitions of transmission of the uplink data. ### Claim 3 (depends on 1) The method of claim 1, further comprising: performing a random access procedure for updating the TA when the TA is not valid as a result of determining the validity of the TA. ### Claim 4 (depends on 1) The method of claim 1, further comprising: receiving, from the base station, downlink control information (DCI) including resource information related to retransmission of the uplink data. ### Claim 5 (depends on 4) The method of claim 4, wherein the DCI is received in a new search space that is distinguished from a legacy search space. ### Claim 6 (depends on 5) The method of claim 5, wherein the configuration information further includes information related to the new search space. ### Claim 7 A terminal configured to transmit uplink data using a preconfigured uplink resource (PUR) in a wireless communication system, the terminal comprising: a transmitter configured to transmit a radio signal; a receiver configured to receive a radio signal; and a processor configured to perform operations comprising: receiving in a radio resource control (RRC) connected state, from a base station, configuration information for transmitting the uplink data using the PUR in an RRC idle state, wherein the configuration information includes first information regarding a timing advance (TA) validity timer and second information regarding a reference signal received power (RSRP) level; transitioning from the RRC connected state to the RRC idle state; and transmitting, to the base station, the uplink data using the PUR based on the configuration information in the RRC idle state, wherein, based on i) the TA validity timer not being expired and ii) a RSRP measurement value being greater than or equal to the RSRP level, a TA for transmitting the uplink data using the PUR is determined to be valid, and wherein there is only one hybrid automatic repeat request (HARQ) process for transmitting the uplink data using the PUR. ### Claim 8 (depends on 7) The terminal of claim 7, wherein the configuration information includes information regarding a transmission interval of the uplink data and information regarding a number of repetitions of transmission of the uplink data. ### Claim 9 (depends on 7) The terminal of claim 7, wherein the operations further comprise: performing a random access procedure for updating the TA when the TA is not valid as a result of determining the validity of the TA. ### Claim 10 (depends on 7) The terminal of claim 7, wherein the operations further comprise: receiving, from the base station, downlink control information (DCI) including resource information related to retransmission of the uplink data. ### Claim 11 (depends on 10) The terminal of claim 10, wherein the DCI is received in a new search space that is distinguished from a legacy search space. ### Claim 12 (depends on 11) The terminal of claim 11, wherein the configuration information further includes information related to the new search space. ### Claim 13 A base station configured to receive uplink data using a preconfigured uplink resource (PUR) in a wireless communication system, the base station comprising: a transmitter configured to transmit a radio signal; a receiver configured to receive a radio signal; and a processor configured to perform operations comprising: transmitting, to a terminal in a radio resource control (RRC) connected state, configuration information for receiving the uplink data using the PUR from the terminal in an RRC idle state, wherein the configuration information includes first information regarding a timing advance (TA) validity timer and second information regarding a reference signal received power (RSRP) level; and receiving, from the terminal in the RRC idle state, the uplink data using the PUR based on the configuration information, wherein, based on i) the TA validity timer not being expired and ii) a RSRP measurement value being greater than or equal to the RSRP level, a TA for transmitting the uplink data using the PUR is determined to be valid, and wherein there is only one hybrid automatic repeat request (HARQ) process for transmitting the uplink data using the PUR.