# US 12,193,055 B2 · Method and device in nodes used for wireless communication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,193,055 B2 - Document ID: US12193055B2 - Status: Granted - Kind: B2 - Application number: 17/696,879 - Filed: 2022-03-17 - Published: 2022-06-30 - Granted: 2025-01-07 - Earliest claimed: 2019-09-26 - Assignees: Shanghai Langbo Communication Technology Company Limited - Applicants: Zheng Liu; Xiaobo Zhang - Inventors: Zheng Liu; Xiaobo Zhang - Web page: https://patentgrep.com/patent/US12193055B2 ## CPC - H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)} - H04W 74/0816: with collision avoidance - H04L 1/0041: {Arrangements at the transmitter end} - H04L 1/0045: {Arrangements at the receiver end} - H04L 1/0073: {Special arrangements for feedback channel} - H04L 27/0006: {Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio (for spectrum sharing between different networks H04W16/14)} - H04L 27/26025: {Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003)} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 72/20: Control channels or signalling for resource management - 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 The present disclosure provides a method and device in nodes used for wireless communication. A node receives a first signaling; transmits a first signal; receives a second signaling; and transmits a second signal; the first signaling is used to determine time-frequency resources occupied by the first signal, the first signaling is used to determine radio resources occupied by the second signal, and time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signaling; a length of a time interval between an end time for receiving the second signaling and a start time for transmitting the second signal is equal to a first delay; the first delay is not less than a reference delay, and the reference delay is related to a subcarrier spacing (SCS) occupied by the second signal in frequency domain. The application ensures the correct reception of the feedback. ## Claims ### Claim 1 A first node for wireless communications, comprising: a first receiver, receiving a first signaling; a first transmitter, transmitting a first signal; a second receiver, receiving a second signaling; and a second transmitter, transmitting a second signal; wherein the first signaling is used to determine time-frequency resources occupied by the first signal, the first signaling is used to determine radio resources occupied by the second signal, and time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signaling; a length of a time interval between an end time for receiving the second signaling and a start time for transmitting the second signal is equal to a first delay, and the end time for receiving the second signaling is earlier than the start time for transmitting the second signal; the first delay is not less than a reference delay, and the reference delay is related to a subcarrier spacing (SCS) of a subcarrier occupied by the second signal in frequency domain; the second signaling is used to determine information carried by the second signal, information carried by the second signal is the same as HARQ-ACK (Hybrid Automatic Repeat Request-Acknowledgement) information carried by the second signaling, and a transmitter of the first signaling is different from a transmitter of the second signaling; the first signaling carries DCI (Downlink Control Information), the first signal is transmitted through a PSSCH (Physical Sidelink Shared Channel), the second signaling is transmitted through a PSFCH (Physical Sidelink Feedback Channel), and the second signal is transmitted through a PUCCH (Physical Uplink Control Channel) or a PUSCH (Physical Uplink Shared Channel). ### Claim 2 (depends on 1) The first node according to claim 1, wherein the first transmitter transmits third information; wherein the third information is used to indicate the reference delay, the reference delay is also related to an SCS of a subcarrier occupied by the second signaling in frequency domain, and the third information is transmitted via an air interface. ### Claim 3 (depends on 1) The first node according to claim 1, wherein the first signaling is used to determine a second delay, a first slot is an earliest slot comprising time-domain resources occupied by the first signal, and a start time of the first slot is not earlier than an end time for receiving the first signaling; for an SCS of a subcarrier occupied by the first signal in frequency domain, the first slot is an earliest slot satisfying that a length of a time interval between the start time of the first slot and the end time for receiving the first signaling is not less than the second delay. ### Claim 4 (depends on 3) The first node according to claim 3, wherein the first signaling is used to indicate a target delay, a difference value of the target delay and half of a second timing offset is equal to the second delay, the second timing offset is equal to a Timing Advance (TA), and the first slot is a sidelink slot. ### Claim 5 (depends on 1) The first node according to claim 1, wherein the first signaling is used to determine a third delay, a second slot is an earliest slot comprising time-domain resources occupied by the second signal, for an SCS of a subcarrier occupied by the second signal in frequency domain, the second slot is an earliest slot satisfying that a length of a time interval between its start time and a reference time is not less than the third delay; the reference time is an end time for receiving the second signaling. ### Claim 6 (depends on 1) The first node according to claim 1, wherein the reference delay is equal to an integral number of Orthogonal Frequency Division Multiplexing (OFDM) symbol(s) other than an earliest OFDM symbol in a slot; an index of an SCS of a subcarrier occupied by the second signal in frequency domain is a first index, an index of an SCS of a subcarrier occupied by the second signaling in frequency domain is a second index, the first index is a non-negative integer, the second index is a non-negative integer, and the reference delay is related to a smaller one between the first index and the second index. ### Claim 7 (depends on 1) The first node according to claim 1, wherein the first delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier occupied by the second signal in frequency domain, and the first delay is represented by a number of slot(s). ### Claim 8 A second node for wireless communications, comprising: a third transmitter, transmitting a first signaling; and a third receiver, receiving a second signal; wherein the first signaling is used to indicate time-frequency resources occupied by a first signal, the first signaling is used to indicate radio resources occupied by the second signal, and time-frequency resources occupied by the first signal are used to determine radio resources occupied by a second signaling; a length of a time interval between an end time for receiving the second signaling and a start time for transmitting the second signal is equal to a first delay, and the end time for receiving the second signaling is earlier than the start time for transmitting the second signal; the first delay is not less than a reference delay, and the reference delay is related to an SCS of a subcarrier occupied by the second signal in frequency domain; the second signaling is used to determine information carried by the second signal, information carried by the second signal is the same as HARQ-ACK (Hybrid Automatic Repeat Request-Acknowledgement) information carried by the second signaling, and a transmitter of the second signaling is a node other than the second node; the first signaling carries DCI (Downlink Control Information), the first signal is transmitted through a PSSCH (Physical Sidelink Shared Channel), the second signaling is transmitted through a PSFCH (Physical Sidelink Feedback Channel), and the second signal is transmitted through a PUCCH (Physical Uplink Control Channel) or a PUSCH (Physical Uplink Shared Channel). ### Claim 9 (depends on 8) The second node according to claim 8, wherein the third receiver receives third information; wherein the third information is used to indicate the reference delay, the reference delay is also related to an SCS of a subcarrier occupied by the second signaling in frequency domain, and the third information is transmitted via an air interface. ### Claim 10 (depends on 8) The second node according to claim 8, wherein the first signaling is used to indicate a target delay, a difference value of the target delay and half of a second timing offset is equal to a second delay, and the second timing offset is equal to a TA; a first slot is an earliest slot comprising time-domain resources occupied by the first signal, a start time of the first slot is not earlier than an end time for receiving the first signaling, and the first slot is a sidelink slot; for an SCS of a subcarrier occupied by the first signal in frequency domain, the first slot is an earliest slot satisfying that a length of a time interval between the start time of the first slot and the end time for receiving the first signaling is not less than the second delay. ### Claim 11 (depends on 8) The second node according to claim 8, wherein the first signaling is used to determine a third delay, a second slot is an earliest slot comprising time-domain resources occupied by the second signal, for an SCS of a subcarrier occupied by the second signal in frequency domain, the second slot is an earliest slot satisfying that a length of a time interval between its start time and a reference time is not less than the third delay; the reference time is an end time for receiving the second signaling. ### Claim 12 (depends on 8) The second node according to claim 8, wherein the reference delay is equal to an integral number of OFDM symbol(s) other than an earliest OFDM symbol in a slot; an index of an SCS of a subcarrier occupied by the second signal in frequency domain is a first index, an index of an SCS of a subcarrier occupied by the second signaling in frequency domain is a second index, the first index is a non-negative integer, the second index is a non-negative integer, and the reference delay is related to a smaller one between the first index and the second index. ### Claim 13 (depends on 8) The second node according to claim 8, wherein the first delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier occupied by the second signal in frequency domain, and the first delay is represented by a number of slot(s). ### Claim 14 A method in a first node for wireless communications, comprising: receiving a first signaling; transmitting a first signal; receiving a second signaling; and transmitting a second signal; wherein the first signaling is used to determine time-frequency resources occupied by the first signal, the first signaling is used to determine radio resources occupied by the second signal, and time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signaling; a length of a time interval between an end time for receiving the second signaling and a start time for transmitting the second signal is equal to a first delay, and the end time for receiving the second signaling is earlier than the start time for transmitting the second signal; the first delay is not less than a reference delay, and the reference delay is related to an SCS of a subcarrier occupied by the second signal in frequency domain; the second signaling is used to determine information carried by the second signal, information carried by the second signal is the same as HARQ-ACK (Hybrid Automatic Repeat Request-Acknowledgement) information carried by the second signaling, and a transmitter of the first signaling is different from a transmitter of the second signaling; the first signaling carries DCI (Downlink Control Information), the first signal is transmitted through a PSSCH (Physical Sidelink Shared Channel), the second signaling is transmitted through a PSFCH (Physical Sidelink Feedback Channel), and the second signal is transmitted through a PUCCH (Physical Uplink Control Channel) or a PUSCH (Physical Uplink Shared Channel). ### Claim 15 (depends on 14) The method in a first node according to claim 14, comprising: transmitting third information; wherein the third information is used to indicate the reference delay, the reference delay is also related to an SCS of a subcarrier occupied by the second signaling in frequency domain, and the third information is transmitted via an air interface. ### Claim 16 (depends on 14) The method in a first node according to claim 14, wherein the first signaling is used to determine a second delay, a first slot is an earliest slot comprising time-domain resources occupied by the first signal, and a start time of the first slot is not earlier than an end time for receiving the first signaling; for an SCS of a subcarrier occupied by the first signal in frequency domain, the first slot is an earliest slot satisfying that a length of a time interval between a start time of the first slot and an end time for receiving the first signaling is not less than the second delay. ### Claim 17 (depends on 16) The method in a first node according to claim 16, wherein the first signaling is used to indicate a target delay, a difference value of the target delay and half of a second timing offset is equal to the second delay, the second timing offset is equal to a TA, and the first slot is a sidelink slot. ### Claim 18 (depends on 14) The method in a first node according to claim 14, wherein the first signaling is used to determine a third delay, a second slot is an earliest slot comprising time-domain resources occupied by the second signal, for an SCS of a subcarrier occupied by the second signal in frequency domain, the second slot is an earliest slot satisfying that a length of a time interval between its start time and a reference time is not less than the third delay; the reference time is an end time for receiving the second signaling. ### Claim 19 (depends on 14) The method in a first node according to claim 14, wherein the reference delay is equal to an integral number of OFDM symbol(s) other than an earliest OFDM symbol in a slot; an index of an SCS of a subcarrier occupied by the second signal in frequency domain is a first index, an index of an SCS of a subcarrier occupied by the second signaling in frequency domain is a second index, the first index is a non-negative integer, the second index is a non-negative integer, and the reference delay is related to a smaller one between the first index and the second index. ### Claim 20 (depends on 14) The method in a first node according to claim 14, wherein the first delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier occupied by the second signal in frequency domain, and the first delay is represented by a number of slot(s).