# US 12,120,044 B2 · Data transmission method for ultra-low latency and highly-reliable communication in wireless communication system, and apparatus therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,120,044 B2 - Document ID: US12120044B2 - Status: Granted - Kind: B2 - Application number: 18/192,424 - Filed: 2023-03-29 - Published: 2023-07-27 - Granted: 2024-10-15 - Earliest claimed: 2019-08-09 - Assignees: Uucom Co., Ltd - Applicants: Uucom Co., Ltd - Inventors: Su Han Choi - Web page: https://patentgrep.com/patent/US12120044B2 ## CPC - H04L 5/0012: {Hopping in multicarrier systems} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04B 1/7143: Arrangements for generation of hop patterns - H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)} - H04L 1/0026: {Transmission of channel quality indication} - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04L 1/1825: Adaptation of specific ARQ protocol parameters according to transmission conditions - H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)} - H04L 1/189: {Transmission or retransmission of more than one copy of a message} - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/0057: {Physical resource allocation for CQI} - H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - 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) - H04B: TRANSMISSION ## Abstract Provided are a repetitive transmission method for ultra-low latency and highly-reliable communication in a wireless communication system, and an apparatus therefor. A method for transmitting data by a terminal according to an embodiment of the present invention comprises the steps of: receiving information on the repetition number of transmission for a physical uplink shared channel (PUSCH) from a base station; receiving, from the base station, information on frequency hopping applied to the the PUSCH repetition configuring the the PUSCH repetition; determining a frequency resource for the PUSCH repetition based on the information on the frequency hopping; and performing the the PUSCH repetition. ## Claims ### Claim 1 A method of transmitting data by a user equipment in a wireless communication system comprising: receiving, from a base station, downlink control information including a number of repetitions to be applied in a physical uplink shared channel (PUSCH) transmission on frequency hopping; determining PUSCH repetitions corresponding to the number of repetitions; performing the frequency hopping according to the determined PUSCH repetitions, wherein the performing the frequency hopping includes: a first PUSCH repetition, using a plurality of resource blocks (RBs) including a first basic resource block (RB), and a second PUSCH repetition, using a plurality of RBs including a second basic RB which is apart from the first basic RB with an offset, and wherein the offset between the first basic RB and the second basic RB is determined based on a size of bandwidth part (BWP) which is activated for an uplink data transmission. ### Claim 2 (depends on 1) The method of claim 1, wherein the plurality of RBs including the first basic RB and the plurality of RBs including the second basic RB are frequency resources corresponding to both ends of the activated BWP respectively. ### Claim 3 (depends on 1) The method of claim 1, further comprising: transmitting channel quality information to the base station, wherein the downlink control information for the frequency hopping is determined based on the channel quality information. ### Claim 4 (depends on 1) The method of claim 1, wherein a different demodulation reference signal (DM-RS) is applied to each PUSCH. ### Claim 5 (depends on 1) The method of claim 1, further comprising: receiving from the base station information on a default number of repetitions of the uplink data, wherein the downlink control information includes information on a difference value between the default number of repetitions and an actual number of repetitions of the PUSCHs. ### Claim 6 A user equipment transmitting data in a wireless communication system, the user equipment comprising: a Radio Frequency (RF) unit configured to receive, from a base station, downlink control information including a number of repetitions to be applied in a physical uplink shared channel (PUSCH) transmission on frequency hopping; and a processor configured to determine PUSCH repetitions corresponding to the number of repetitions and perform the frequency hopping according to the determined PUSCH repetitions, wherein the performing the frequency hopping includes: a first PUSCH repetition, using a plurality of resource blocks (RBs) including a first basic resource block (RB), and a second PUSCH repetition, using a plurality of RBs including a second basic RB which is apart from the first basic RB with an offset, and wherein the offset between the first basic RB and the second basic RB is determined based on a size of bandwidth part (BWP) which is activated for an uplink data transmission. ### Claim 7 (depends on 6) The user equipment of claim 6, wherein the plurality of RBs including the first basic RB and the plurality of RBs including the second basic RB are frequency resources corresponding to both ends of the activated BWP respectively. ### Claim 8 (depends on 6) The user equipment of claim 6, wherein the RF unit transmits channel quality information to the base station, and wherein the downlink control information for the frequency hopping is determined based on the channel quality information. ### Claim 9 (depends on 6) The user equipment of claim 6, wherein a different demodulation reference signal (DM-RS) is applied to each PUSCH repetition. ### Claim 10 (depends on 6) The user equipment of claim 6, wherein the RF unit receives from the base station information on a default number of repetitions of the uplink data, and wherein the downlink control information includes information on a difference value between the default number of repetitions and an actual number of repetitions of the uplink data. ### Claim 11 A method of receiving data by a base station in a wireless communication system comprising: transmitting, to a user equipment, downlink control information including a number of repetitions to be applied in a physical uplink shared channel (PUSCH) transmission on frequency hopping; and determining PUSCH repetitions corresponding to the number of repetitions, receiving, from the user equipment, a first PUSCH repetition, using a plurality of resource blocks (RBs) including a first basic resource block (RB), and a second PUSCH repetition, using a plurality of RBs including a second basic RB which is apart from the first basic RB with an offset, and wherein the offset between the first basic RB and the second basic RB is determined based on a size of bandwidth part (BWP) which is activated for an uplink data transmission. ### Claim 12 (depends on 11) The method of claim 11, wherein the plurality of RBs including the first basic RB and the plurality of RBs including the second basic RB are frequency resources corresponding to both ends of the activated BWP respectively. ### Claim 13 (depends on 11) The method of claim 11, further comprising: receiving channel quality information from the user equipment, wherein the downlink control information on the frequency hopping is determined based on the channel quality information. ### Claim 14 (depends on 11) The method of claim 11, wherein a different demodulation reference signal (DM-RS) is applied to each PUSCH repetition. ### Claim 15 (depends on 11) The method of claim 11, further comprising: transmitting to the user equipment information on a default number of repetitions of the uplink data, wherein the downlink control information includes information on a difference value between the default number of repetitions and an actual number of repetitions of the uplink data. ### Claim 16 A base station receiving data in a wireless communication system, the base station comprising: a Radio Frequency (RF) unit configured to transmit to a user equipment downlink control information including a number of repetitions to be applied in a physical uplink shared channel (PUSCH) transmission on frequency hopping; and a processor configured to determine PUSCH repetitions corresponding to the number of repetitions, wherein the RF unit is further configured to receive, from the user equipment, a first PUSCH repetition, using a plurality of resource blocks (RBs) including a first basic resource block (RB), and a second PUSCH repetition, using a plurality of RBs including a second basic RB which is apart from the first basic RB with an offset, and wherein the offset between the first basic RB and the second basic RB is determined based on a size of bandwidth part (BWP) which is activated for an uplink data transmission. ### Claim 17 (depends on 16) The base station of claim 16, wherein the plurality of RBs including the first basic RB and the plurality of RBs including the second basic RB are frequency resources corresponding to both ends of the activated BWP respectively. ### Claim 18 (depends on 16) The base station of claim 16, wherein the RF unit receives channel quality information from the user equipment, wherein the downlink control information on the frequency hopping is determined based on the channel quality information. ### Claim 19 (depends on 16) The base station of claim 16, wherein a different demodulation reference signal (DM-RS) is applied to each PUSCH repetition. ### Claim 20 (depends on 16) The base station of claim 16, wherein the RF unit transmits to the user equipment information on a default number of repetition of the uplink data, and wherein the downlink control information includes information on a difference value between the default number of repetitions and an actual number of repetitions of the uplink data.