Patent Publication Number: US-2022231802-A1

Title: Method and device in nodes used for wireless communication

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is the continuation of International Patent Application No. PCT/CN2020/121054, filed on Oct. 15, 2020, which claims the priority benefit of Chinese Patent Application No. 201911039426.7, filed on Oct. 29, 2019, the full disclosure of which is incorporated herein by reference. 
    
    
     BACKGROUND 
     Technical Field 
     The present disclosure relates to transmission methods and devices in wireless communication systems, and in particular to a transmission scheme and device of feedback information in wireless communications. 
     Related Art 
     Application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios have different performance demands on systems. In order to meet different performance requirements of various application scenarios, the 3rd Generation Partner Project (3GPP) Radio Access Network (RAN) #72 plenary decided to conduct the study of New Radio (NR), or what is called fifth Generation (5G). The work Item (WI) of NR was approved at the 3GPP RAN #75 plenary to standardize the NR. 
     In response to rapidly growing Vehicle-to-Everything (V2X) traffic, 3GPP has started standards setting and research work under the framework of NR. Currently, 3GPP has completed planning work targeting 5G V2X requirements and has included these requirements into standard TS22.886, where 3GPP identifies and defines 4 major Use Case Groups, covering cases of Vehicles Platooning, supporting Extended Sensors, Advanced Driving and Remote Driving. The technical Study Item (SI) of NR V2X was approved at 3GPP RAN #80 Plenary. The WI was decided to be started for standardizing NR V2X at 3GPP RAN #83 Plenary. 
     SUMMARY 
     Compared with the existing LTE V2X system, NR V2X has a notable feature in supporting Groupcast and Unicast as well as Hybrid Automatic Repeat Request (HARQ) functions. At 3GPP RANI #95 meeting, an independent Physical Sidelink Feedback Channel (PSFCH) is agreed to be introduced. The PSFCH is used to carry a HARQ. In addition, 3GPP agrees that a User Equipment (UE) can report a HARQ feedback of sidelink to a base station. The design of UE reporting to the base station the HARQ feedback of the sidelink needs a solution. 
     In view of the problem in the design of a HARQ feedback report of the sidelink, the present disclosure provides a solution. It should be noted that though the present disclosure only took the NR V2X scenario for example in the statement above; this application is also applicable to other scenarios (such as relay networks, D2D networks, cellular networks, scenarios supporting half-duplex UE) confronting similar problems other than the NR V2X, where similar technical effects can be achieved. Additionally, the adoption of a unified solution for various scenarios, including but not limited to the NR V2X scenario and sidelink transmission, contributes to the reduction of hardcore complexity and costs. If no conflict is incurred, embodiments in a first node in the present disclosure and the characteristics of the embodiments are also applicable to a second node, and vice versa. Particularly, 
     for interpretations of the terminology, nouns, functions and variants (if not specified) in the present disclosure, refer to definitions given in TS36 series, TS38 series and TS37 series of 3GPP specifications. 
     The present disclosure provides a method in a first node for wireless communications, comprising: 
     receiving first information, the first information being used to determine a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain being a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belonging to a first frequency-domain resource pool; 
     transmitting a first signal, frequency-domain resources occupied by the first signal belonging to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool being used to determine a reference delay; 
     receiving a second signal, a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal being equal to the reference delay, the start time of the second multicarrier symbol being not earlier than the end time for receiving the second signal; and 
     when the first multicarrier symbol is not earlier than the second multicarrier symbol, transmitting second information; 
     herein, when the second information is transmitted, the target time-frequency resource set is used for a transmission of the second information; time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal; information carried by the second signal is used to determine the second information, and a transmitter of the first information is different from a transmitter of the second signal. 
     In one embodiment, a transmission of the second information is determined according to a chronological relation of the first multicarrier symbol and the second multicarrier symbol, which enables that a timing of a sidelink HARQ-ACK transmitting a report to a base station satisfies a minimum delay requirement of a UE and takes into account a processing capability of the UE, thus reducing the burden and the complexity of the UE in implementation. 
     In one embodiment, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine the reference delay, a relation between an uplink Bandwidth Part (BWP) and a sidelink BWP is taken into account when calculating a timing relation of a sidelink HARQ-ACK transmitting a report to a base station, which enables that a timing of the sidelink HARQ-ACK transmitting the report to the base station satisfies the processing capability of the UE while ensuring independent configuration of the uplink BWP and the sidelink BWP at the same time, so as to avoid a failure in the sidelink HARQ-ACK transmitting the report to the base station and avoid the implementation complexity of the UE. 
     According to one aspect of the present disclosure, the above method is characterized in that when the first multicarrier symbol is earlier than the second multicarrier symbol, the first node may drop transmitting the second information, or the first node may ignore the first information, or the first node device may assume the target time-frequency resource set invalid. 
     According to one aspect of the present disclosure, the above method is characterized in that the reference delay is not less than a first delay, and a length of a switching time between a reception and a transmission of the first node is used to determine the first delay. 
     In one embodiment, a time required by a reception-transmission switching of the UE that cannot be full duplex is taken into account when calculating the reference delay to further avoid the failure in the sidelink HARQ-ACK transmitting a report to the base station and reduce the implementation complexity of the UE at the same time. 
     According to one aspect of the present disclosure, the above method is characterized in that the reference delay is not less than a second delay; when the first frequency-domain resource pool is the same as the second frequency-domain resource pool, the second delay is equal to 0; when the first frequency-domain resource pool is different from the second frequency-domain resource pool, the second delay is greater than 0, and one of a subcarrier spacing (SCS) of a subcarrier comprised in the first time-frequency resource pool in frequency domain or an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is used to determine the second delay. 
     According to one aspect of the present disclosure, the above method is characterized in that the reference delay is not less than a third delay, an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain is equal to a first SCS, and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is equal to a second SCS, the first SCS is used to determine a first characteristic delay, the second SCS is used to determine a second characteristic delay, and one of the first characteristic delay or the second characteristic delay is used to determine the third delay. 
     According to one aspect of the present disclosure, the above method is characterized in that the second signal carries physical layer information, the physical layer information carried by the second signal is used to determine whether the first signal is correctly received, and an information format adopted by the physical layer information carried by the second signal is used to determine the third delay. 
     In one embodiment, the third delay is determined according to an information format adopted by physical layer information carried by the second signal, so that the reference delay is determined, taking into account the differences in processing complexity of UEs with different Sidelink Feedback Information (SFI) formats, especially the processing complexity of UEs between sequence decorrelation and channel decoding, and in the case that the system can support a variety of different SFI formats, a timing of a sidelink HARQ-ACK transmitting a report to a base station can still satisfy the processing capacity requirement of the UE. 
     According to one aspect of the present disclosure, the above method is characterized in comprising: 
     receiving a first signaling; 
     herein, the first signaling is used to determine time-frequency resources occupied by the first signal, the first signaling is used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling. 
     According to one aspect of the present disclosure, the above method is characterized in comprising: 
     receiving third information and fourth information; 
     herein, the third information is used to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool, and the fourth information is used to determine the second frequency-domain resource pool and an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     The present disclosure provides a method in a second node for wireless communications, comprising: 
     transmitting first information and a first signaling, the first information being used to indicate a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain being a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belonging to a first frequency-domain resource pool; and 
     receiving second information; 
     herein, the first signaling is used to indicate time-frequency resources occupied by a first signal, frequency-domain resources occupied by the first signal belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; time-frequency resources occupied by the first signal are used to indicate radio resources occupied by a second signal; a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; the target time-frequency resource set is used for a transmission of the second information; information carried by the second signal is used to determine the second information, and a transmitter of the second signal is a node other than the second node; the first multicarrier symbol is not earlier than the second multicarrier symbol. 
     According to one aspect of the present disclosure, the above method is characterized in that the reference delay is not less than a first delay, and a length of a switching time between a reception and a transmission of a transmitter of the second information is used to determine the first delay. 
     According to one aspect of the present disclosure, the above method is characterized in that the reference delay is not less than a second delay; when the first frequency-domain resource pool is the same as the second frequency-domain resource pool, the second delay is equal to 0; when the first frequency-domain resource pool is different from the second frequency-domain resource pool, the second delay is greater than 0, and one of an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain or an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is used to determine the second delay. 
     According to one aspect of the present disclosure, the above method is characterized in that the reference delay is not less than a third delay, an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain is equal to a first SCS, and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is equal to a second SCS, the first SCS is used to determine a first characteristic delay, the second SCS is used to determine a second characteristic delay, and one of the first characteristic delay or the second characteristic delay is used to determine the third delay. 
     According to one aspect of the present disclosure, the above method is characterized in that the second signal carries physical layer information, the physical layer information carried by the second signal is used to determine whether the first signal is correctly received, and an information format adopted by the physical layer information carried by the second signal is used to determine the third delay. 
     According to one aspect of the present disclosure, the above method is characterized in that the first signaling is used to indicate a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling. 
     According to one aspect of the present disclosure, the above method is characterized in also comprising: 
     transmitting third information and fourth information; 
     herein, the third information is used to indicate the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool, and the fourth information is used to indicate the second frequency-domain resource pool and an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     The present disclosure provides a first node for wireless communication, comprising: 
     a first receiver, receiving first information, the first information being used to determine a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain being a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belonging to a first frequency-domain resource pool; 
     a first transmitter, transmitting a first signal, frequency-domain resources occupied by the first signal belonging to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool being used to determine a reference delay; 
     a second receiver, receiving a second signal, a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal being equal to the reference delay, the start time of the second multicarrier symbol being not earlier than the end time for receiving the second signal; and 
     a second transmitter, when the first multicarrier symbol is not earlier than the second multicarrier symbol, transmitting second information; 
     herein, when the second information is transmitted, the target time-frequency resource set is used for a transmission of the second information; time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal; information carried by the second signal is used to determine the second information, and a transmitter of the first information is different from a transmitter of the second signal. 
     The present disclosure provides a second node for wireless communications, comprising: 
     a third transmitter, transmitting first information and a first signaling, the first information being used to indicate a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain being a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belonging to a first frequency-domain resource pool; and 
     a third receiver, receiving second information; 
     herein, the first signaling is used to indicate time-frequency resources occupied by a first signal, frequency-domain resources occupied by the first signal belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; time-frequency resources occupied by the first signal are used to indicate radio resources occupied by a second signal; a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; the target time-frequency resource set is used for a transmission of the second information; information carried by the second signal is used to determine the second information, and a transmitter of the second signal is a node other than the second node; the first multicarrier symbol is not earlier than the second multicarrier symbol. 
     In one embodiment, the method in the present disclosure is advantageous in the following aspects:
         the method in the present disclosure enables that a timing of a sidelink HARQ-ACK transmitting a report to a base station satisfies a minimum delay requirement of a UE and takes into account the processing capability of the UE, so as to reduce the burden and complexity of the UE in implementation.   the method in the present disclosure takes into account a relation between an uplink BWP and a sidelink BWP when calculating a timing relation of a sidelink HARQ-ACK transmitting a report to a base station, which enables that the timing of the sidelink HARQ-ACK transmitting the report to the base station satisfies the processing capability of the UE while ensuring independent configuration of the uplink BWP and the sidelink BWP at the same time, so as to avoid a failure in the sidelink HARQ-ACK transmitting the report to the base station, thus reducing the implementation complexity of the UE.   the method in the present disclosure takes into account a time required by a reception-transmission switching of the UE that cannot be full duplex to further avoid a failure in the sidelink HARQ-ACK transmitting the report to the base station and reduce the implementation complexity of the UE at the same time.   the method in the present disclosure takes into account the differences in processing complexity of UEs with different SFI formats, especially the processing complexity of UEs between sequence decorrelation and channel decoding, and in the case that the system can support a variety of different SFI formats, the timing of the sidelink HARQ-ACK transmitting the report to the base station can still satisfy the processing capacity requirement of the UE.       

    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Other features, objects and advantages of the present disclosure will become more apparent from the detailed description of non-restrictive embodiments taken in conjunction with the following drawings: 
         FIG. 1  illustrates a flowchart of first information, a first signal, a second signal and second information according to one embodiment of the present disclosure; 
         FIG. 2  illustrates a schematic diagram of a network architecture according to one embodiment of the present disclosure; 
         FIG. 3  illustrates a schematic diagram of a radio protocol architecture of a user plane and a control plane according to one embodiment of the present disclosure; 
         FIG. 4  illustrates a schematic diagram of a first node and a second node according to one embodiment of the present disclosure; 
         FIG. 5  illustrates a schematic diagram of a first node and another UE according to one embodiment of the present disclosure; 
         FIG. 6  illustrates a flowchart of radio signal transmission according to one embodiment of the present disclosure; 
         FIG. 7  illustrates a flowchart of radio signal transmission according to another embodiment of the present disclosure; 
         FIG. 8  illustrates a schematic diagram of a relation between a first multicarrier symbol and a second multicarrier symbol according to one embodiment of the present disclosure; 
         FIG. 9  illustrates a schematic diagram of a length of a switching time between a reception and a transmission of a first node according to one embodiment of the present disclosure; 
         FIG. 10  illustrates a schematic diagram of a second delay according to one embodiment of the present disclosure; 
         FIG. 11  illustrates a schematic diagram of a first characteristic delay and a second characteristic delay according to one embodiment of the present disclosure; 
         FIG. 12  illustrates a schematic diagram of an information format adopted by physical layer information carried by a second signal according to one embodiment of the present disclosure; 
         FIG. 13  illustrates a structure block diagram of a processing device in a first node according to one embodiment of the present disclosure; 
         FIG. 14  illustrates a structure block diagram of a processing device in second node according to one embodiment of the present disclosure. 
     
    
    
     DESCRIPTION OF THE EMBODIMENTS 
     The technical scheme of the present disclosure is described below in further details in conjunction with the drawings. It should be noted that the embodiments of the present disclosure and the characteristics of the embodiments may be arbitrarily combined if no conflict is caused. 
     Embodiment 1 
     Embodiment 1 illustrates a flowchart of first information, a first signal, a second signal and second information according to one embodiment of the present disclosure, as shown in  FIG. 1 . In  FIG. 1 , each box represents a step. Particularly, the sequential order of steps in these boxes does not necessarily mean that the steps are chronologically arranged. 
     In embodiment 1, a first node in the present disclosure receives first information in step  101 , the first information is used to determine a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain is a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belong to a first frequency-domain resource pool; transmits a first signal in step  102 , frequency-domain resources occupied by the first signal belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; receives a second signaling step  103 , a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; when the first multicarrier symbol is not earlier than the second multicarrier symbol in step  104 , transmits second information; herein, when the second information is transmitted, the target time-frequency resource set is used for a transmission of the second information; time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal; information carried by the second signal is used to determine the second information, and a transmitter of the first information is different from a transmitter of the second signal. 
     In one embodiment, the first information is higher-layer information. 
     In one embodiment, the first information is transmitted through a higher-layer signaling. 
     In one embodiment, the first information is transmitted through a physical-layer signaling. 
     In one embodiment, the first information comprises all or part of a higher-layer signaling. 
     In one embodiment, the first information comprises all or part of a physical-layer signaling. 
     In one embodiment, the first information is transmitted via an air interface. 
     In one embodiment, the first information is transmitted via a radio interface. 
     In one embodiment, the first information is transmitted by the second node in the present disclosure to the first node in the present disclosure. 
     In one embodiment, the first information is transmitted through a Downlink (DL). 
     In one embodiment, the first information is transmitted via a Uu interface. 
     In one embodiment, the first information is transmitted inside the first node in the present disclosure. 
     In one embodiment, the first information is transferred from a higher layer of the first node in the present disclosure to a physical layer of the first node. 
     In one embodiment, the first information is configured. 
     In one embodiment, the first information is pre-configured. 
     In one embodiment, the first information comprises all or partial Information Elements (IEs) in a Radio Resource Control (RRC) signaling. 
     In one embodiment, the first information comprises all or partial fields in an IE in a RRC signaling. 
     In one embodiment, the first information comprises all or partial fields in a Medium Access Control (MAC) layer signaling. 
     In one embodiment, the first information is transmitted through a Downlink Shared Channel (DL-SCH). 
     In one embodiment, the first information is transmitted through a Physical Downlink Shared Channel (PDSCH). 
     In one embodiment, the first information is transmitted through a Physical Downlink Control Channel (PDCCH). 
     In one embodiment, the first information comprises all or partial fields of a Downlink Control Information (DCI) signaling. 
     In one embodiment, the first information is broadcast. 
     In one embodiment, the first information is unicast. 
     In one embodiment, the first information is Cell-Specific. 
     In one embodiment, the first information is UE-specific. 
     In one embodiment, the first information is UE group-specific. 
     In one embodiment, the first information is carried by the first signaling in the present disclosure. 
     In one embodiment, the first information is carried by a signaling other than the first signaling in the present disclosure. 
     In one embodiment, the first information comprises a field in the first signaling in the present disclosure. 
     In one embodiment, the first information comprises a “PUCCH-ResourceSet” IE. 
     In one embodiment, the first information comprises a “pucch-ResourceCommon” IE. 
     In one embodiment, the above phrase of “the first information being used to determine a target time-frequency resource set” includes the following meaning: the first information is used by the first node in the present disclosure to determine the target time-frequency resource set. 
     In one embodiment, the above phrase of “the first information being used to determine a target time-frequency resource set” includes the following meaning: the first information is used to directly indicate the target time-frequency resource set. 
     In one embodiment, the above phrase of “the first information being used to determine a target time-frequency resource set” includes the following meaning: the first information is used to indirectly indicate the target time-frequency resource set. 
     In one embodiment, the above phrase of “the first information being used to determine a target time-frequency resource set” includes the following meaning: the first information is used to explicitly indicate the target time-frequency resource set. 
     In one embodiment, the above phrase of “the first information being used to determine a target time-frequency resource set” includes the following meaning: the first information is used to implicitly indicate the target time-frequency resource set. 
     In one embodiment, the target time-frequency resource set is reserved for a Physical Uplink Control Channel (PUCCH) transmission. 
     In one embodiment, the target time-frequency resource set is reserved for Uplink Control Information (UCI). 
     In one embodiment, the target time-frequency resource set is reserved for a sidelink HARQ feedback. 
     In one embodiment, the target time-frequency resource set comprises at least one Resource Element (RE). 
     In one embodiment, the target time-frequency resource set comprises at least one time-domain continuous Orthogonal Frequency Division Multiplexing (OFDM) symbol in time domain. 
     In one embodiment, the target time-frequency resource set comprises more than one time-domain discrete OFDM symbol in time domain. 
     In one embodiment, the target time-frequency resource set comprises at least one Physical resource block (PRB) in frequency domain. 
     In one embodiment, the target time-frequency resource set comprises continuous frequency-domain resources in frequency domain. 
     In one embodiment, the target time-frequency resource set comprises discrete frequency-domain resources in frequency domain. 
     In one embodiment, the target time-frequency resource set comprises frequency-hopping frequency-domain resources in frequency domain. 
     In one embodiment, the first multicarrier symbol is an OFDM symbol. 
     In one embodiment, the first multicarrier symbol is a Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) symbol. 
     In one embodiment, the first multicarrier symbol comprises a Cyclic Prefix (CP). 
     In one embodiment, the first multicarrier symbol is an OFDM symbol corresponding to an SCS of a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, the first multicarrier symbol is a DFT-s-OFDM symbol corresponding to an SCS of a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, when the target time-frequency resource set only comprises one multicarrier symbol in time domain, the first multicarrier symbol is one multicarrier symbol comprised in the target time-frequency resource set in time domain. 
     In one embodiment, any multicarrier symbol comprised in the target time-frequency resource set in time domain is an OFDM symbol. 
     In one embodiment, any multicarrier symbol comprised in the target time-frequency resource set in time domain is a DFT-s-OFDM symbol. 
     In one embodiment, the above phrase of “an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain being a first multicarrier symbol” includes the following meaning: a start time of the first multicarrier symbol is not later than a start time of any multicarrier symbol comprised in the target time-frequency resource set in time domain. 
     In one embodiment, the above phrase of “an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain being a first multicarrier symbol” includes the following meaning: the target time-frequency resource comprises more than one multicarrier symbol in time domain, and a start time of the first multicarrier symbol is earlier than a start time of any multicarrier symbol other than the first multicarrier symbol comprised in the target time-frequency resource set in time domain. 
     In one embodiment, the first frequency-domain resource pool is a BWP. 
     In one embodiment, the first frequency-domain resource pool comprises at least one frequency-domain continuous Physical Resource Block (PRB). 
     In one embodiment, for a given SCS, the first frequency-domain resource pool comprises at least one frequency-domain continuous PRB. 
     In one embodiment, the first frequency-domain resource pool comprises continuous frequency-domain resources. 
     In one embodiment, the first frequency-domain resource pool is frequency-domain resources comprised in a PUCCH resource set. 
     In one embodiment, the first frequency-domain resource pool is an Uplink (UL) BWP. 
     In one embodiment, the first frequency-domain resource pool comprises frequency-domain resources other than frequency-domain resources comprised in the target time-frequency resource set. 
     In one embodiment, the first frequency-domain resource pool only comprises frequency-domain resources comprised in the target time-frequency resource set. 
     In one embodiment, SCSs of subcarriers comprised in the first frequency-domain resource pool are equal. 
     In one embodiment, each SCS comprised in the target time-frequency resource set in frequency domain is a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, the above phrase of “the first information being used to determine a target time-frequency resource set” includes the following meaning: the first information is used to determine frequency-domain resources comprised in the target time-frequency resource set out of the first frequency-domain resource pool, and the first information is used to indicate a start OFDM symbol and a number of OFDM symbol(s) comprised in the target time-frequency resource set. 
     In one embodiment, the first signal is a baseband signal. 
     In one embodiment, the first signal is a Radio Frequency (RF) signal. 
     In one embodiment, the first signal is transmitted via an air interface. 
     In one embodiment, the first signal is transmitted via a radio interface. 
     In one embodiment, the first signal is transmitted via a PC5 interface. 
     In one embodiment, the first signal is transmitted via a Uu interface. 
     In one embodiment, the first signal is transmitted through sidelink. 
     In one embodiment, the first signal is used to carry a sidelink Transport Block (TB). 
     In one embodiment, the first signal is transmitted through a Sidelink Shared Channel (SL-SCH). 
     In one embodiment, the first signal is transmitted through a Physical Sidelink Shared Channel (PSSCH). 
     In one embodiment, the first signal comprises a reference signal. 
     In one embodiment, the first signal comprises a PSSCH and a Demodulation Reference Signal (DMRS). 
     In one embodiment, the first signal is transmitted through a Physical Sidelink Control Channel (PSCCH). 
     In one embodiment, the first signal carries Sidelink Control Information (SCI). 
     In one embodiment, the first signal is broadcast. 
     In one embodiment, the first signal is unicast. 
     In one embodiment, the first signal is groupcast. 
     In one embodiment, all or part of a TB is used to generate the first signal. 
     In one embodiment, all or part of a TB and a reference signal are used together to generate the first radio signal. 
     In one embodiment, all or partial bits in a TB sequentially goes through CRC Calculation, Channel Coding, Rate Matching, Scrambling, Modulation, Layer Mapping, Antenna Port Mapping, Mapping to Virtual Resource Blocks, Mapping from Virtual to Physical Resource Blocks, OFDM Baseband Signal Generation and Modulation and Upconversion to acquire the first signal. 
     In one embodiment, all or partial bits in a TB sequentially goes through CRC Calculation, Channel Coding, Rate Matching, Scrambling, Modulation, Layer Mapping, Antenna Port Mapping, Mapping to Virtual Resource Blocks, Mapping from Virtual to Physical Resource Blocks and OFDM Baseband Signal Generation to acquire the first signal. 
     In one embodiment, all or partial bits in a TB sequentially goes through CRC Calculation, Code Block Segmentation and Code Block CRC attachment, Channel Coding, Rate Matching, Code Block Concatenation, Scrambling, Modulation, Layer Mapping, Antenna Port Mapping, Mapping to Virtual Resource Blocks, Mapping from Virtual to Physical Resource Blocks, OFDM Baseband Signal Generation and Modulation and Upconversion to acquire the first signal. 
     In one embodiment, all or partial bits in a TB sequentially goes through CRC Calculation, Code Block Segmentation and Code Block CRC attachment, Channel Coding, Rate Matching, Code Block Concatenation, Scrambling, Modulation, Layer Mapping, Antenna Port Mapping, Mapping to Virtual Resource Blocks, Mapping from Virtual to Physical Resource Blocks and OFDM Baseband Signal Generation to acquire the first signal. 
     In one embodiment, all or partial bits in a payload of an SCI sequentially goes through CRC Calculation, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources, OFDM Baseband Signal Generation, and Modulation and Upconversion to acquire the first signal. 
     In one embodiment, all or partial bits in a payload of an SCI sequentially goes through CRC Calculation, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources and OFDM Baseband Signal Generation to acquire the first signal. 
     In one embodiment, frequency-domain resources occupied by the first signal belong to a sidelink resource pool. 
     In one embodiment, frequency-domain resources occupied by the first signal comprise at least one PRB. 
     In one embodiment, frequency-domain resources occupied by the first signal comprise at least one subchannel. 
     In one embodiment, frequency-domain resources occupied by the first signal are continuous in frequency domain. 
     In one embodiment, frequency-domain resources occupied by the first signal are discrete in frequency domain. 
     In one embodiment, the second frequency-domain resource pool is a BWP. 
     In one embodiment, the second frequency-domain resource pool comprises at least one frequency-domain continuous PRB. 
     In one embodiment, for a given SCS, the second frequency-domain resource pool comprises at least one frequency-domain continuous PRB. 
     In one embodiment, the second frequency-domain resource pool comprises continuous frequency-domain resources. 
     In one embodiment, the second frequency-domain resource pool is a sidelink resource pool. 
     In one embodiment, the second frequency-domain resource pool is a sidelink BWP. 
     In one embodiment, the second frequency-domain resource pool comprises frequency-domain resources other than frequency-domain resources occupied by the first signal. 
     In one embodiment, SCSs of subcarriers comprised in the second frequency-domain resource pool are equal. 
     In one embodiment, an SCS of a subcarrier comprised in the second frequency-domain resource pool is equal to an SCS of any subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, there exist an SCS of a subcarrier in the second frequency-domain resource pool being not equal to an SCS of a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, the second frequency-domain resource pool only comprises frequency-domain resources occupied by the first signal. 
     In one embodiment, each subcarrier comprised in frequency-domain resources occupied by the first signal is a subcarrier in the second frequency-domain resource pool. 
     In one embodiment, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool refers to whether the first frequency-domain resource pool is the same as the second frequency-domain resource pool. 
     In one embodiment, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool refers to whether a Start and Length Indicator Value (SLIV) of the first frequency-domain resource pool is the same as an SLIV of the second frequency-domain resource pool. 
     In one embodiment, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool refers to whether a frequency-domain starting location and a bandwidth of the first frequency-domain resource pool are respectively the same as a frequency-domain starting location and a bandwidth of the second frequency-domain resource pool. 
     In one embodiment, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool refers to whether a locationAndBandwidth parameter of the first frequency-domain resource pool is the same as a locationAndBandwidth parameter of the second frequency-domain resource pool. 
     In one embodiment, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool refers to whether a lowest frequency comprised in the first frequency-domain resource pool and a bandwidth are respectively the same as a lowest frequency comprised in the second frequency-domain resource pool and a bandwidth. 
     In one embodiment, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool refers to whether an SCS of a subcarrier comprised in the first frequency-domain resource pool is the same as an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool refers to whether a center frequency point of the first frequency-domain resource pool is the same as a center frequency point of the second frequency-domain resource pool. 
     In one embodiment, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool refers to a frequency-domain interval between a center frequency point of the first frequency-domain resource pool and a center frequency point of the second frequency-domain resource pool in frequency domain. 
     In one embodiment, the above phrase of “a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool being used to determine a reference delay” includes the following meaning: a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used by the first node in the present disclosure to determine the reference delay. 
     In one embodiment, the above phrase of “a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool being used to determine a reference delay” includes the following meaning: a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used by the second node in the present disclosure to determine the reference delay. 
     In one embodiment, the above phrase of “a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool being used to determine a reference delay” includes the following meaning: a location relation between the first frequency-domain resource pool and the second frequency-domain resource pool in frequency domain is used to determine the reference delay. 
     In one embodiment, the above phrase of “a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool being used to determine a reference delay” includes the following meaning: the reference delay is in a linear relation with a length of a frequency-domain interval between a center frequency point of the first frequency-domain resource pool and a center frequency point of the second frequency-domain resource pool. 
     In one embodiment, the above phrase of “a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool being used to determine a reference delay” includes the following meaning: the reference delay is in a linear relation with a length of a frequency-domain interval between a lowest frequency of the first frequency-domain resource pool and a lowest frequency of the second frequency-domain resource pool. 
     In one embodiment, the above phrase of “a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool being used to determine a reference delay” refers to: a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine the second delay in the present disclosure. 
     In one embodiment, the reference delay is measured by s. 
     In one embodiment, the reference delay is measured by ms. 
     In one embodiment, the reference delay is equal to a time length of at least one OFDM symbol. 
     In one embodiment, the reference delay is equal to a time length of at least one slot. 
     In one embodiment, the reference delay is equal to a positive integral multiple of Tc, where Tc=1/(480000*4096) s. 
     In one embodiment, the reference delay is represented by a number of OFDM symbol(s). 
     In one embodiment, the reference delay is represented by a number of slot(s). 
     In one embodiment, the reference delay is equal to a time length of at least one OFDM symbol, and the OFDM symbol(s) corresponds(correspond) to an SCS of a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, the reference delay is equal to a time length of at least one OFDM symbol, and the OFDM symbol(s) corresponds(correspond) to an SCS of a subcarrier in the second frequency-domain resource pool. 
     In one embodiment, the reference delay is equal to a time length of a positive integral number of OFDM symbol(s) other than an earliest OFDM symbol in a slot. 
     In one embodiment, the reference delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the reference delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, the reference delay is related to a waveform adopted by a signal carrying the second information. 
     In one embodiment, the reference delay is related to whether a signal carrying the second information adopts an OFDM waveform or a DFT-s-OFDM waveform. 
     In one embodiment, the reference delay is related to whether transform precoding is adopted when a signal carrying the second information is generated. 
     In one embodiment, the second signal is a baseband signal. 
     In one embodiment, the second signal is an RF signal. 
     In one embodiment, the second signal is transmitted via an air interface. 
     In one embodiment, the second signal is transmitted via a radio interface. 
     In one embodiment, the second signal is transmitted via a PC5 interface. 
     In one embodiment, the second signal is transmitted via a Uu interface. 
     In one embodiment, the second signal is transmitted through sidelink. 
     In one embodiment, the second signal is transmitted through a PSFCH. 
     In one embodiment, all or partial a characteristic sequence is used to generate the second signal. 
     In one embodiment, all or partial a bit block is used to generate the second signal. 
     In one embodiment, all or partial a Zadoff-Chu (ZC) sequence is used to generate the second signal. 
     In one embodiment, the second signal carries all or partial Sidelink Feedback Control Information (SFCI). 
     In one embodiment, the second signal carries Channel Status Information (CSI) of sidelink. 
     In one subembodiment, the second signal carries a Channel Quality Indicator (CQI) of sidelink. 
     In one embodiment, the second signal carries a Rank Indicator (RI) of sidelink. 
     In one embodiment, the second signal carries a Reference Signal Received Power (RSRP) report of sidelink. 
     In one embodiment, the second signal carries a Reference Signal Received Quality (RSRQ) report of sidelink. 
     In one embodiment, the second signal carries a Layer 1-Reference Signal Received Power (L1-RSRP) report of sidelink. 
     In one embodiment, the second signal carries a HARQ feedback. 
     In one embodiment, the second signal carries a HARQ Non-Acknowledge (NACK) feedback. 
     In one embodiment, the second signal is used to determine whether the first signal is correctly received. 
     In one embodiment, the second signal is used to indicate whether the first signal is correctly received. 
     In one embodiment, the second signal is used to indicate that the first signal is not correctly received. 
     In one embodiment, the second signal carries a HARQ feedback carrying the first signal. 
     In one embodiment, the second signal carries a HARQ NACK feedback carrying the first signal. 
     In one embodiment, the second multicarrier symbol is an OFDM symbol. 
     In one embodiment, the second multicarrier symbol is a DFT-s-OFDM symbol. 
     In one embodiment, the second multicarrier symbol comprises a CP. 
     In one embodiment, the second multicarrier symbol is an OFDM symbol corresponding to an SCS of a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, the second multicarrier symbol is a DFT-s-OFDM symbol corresponding to an SCS of a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, the second multicarrier symbol is an OFDM symbol corresponding to an SCS of a subcarrier in the second frequency-domain resource pool. 
     In one embodiment, the second multicarrier symbol is a DFT-s-OFDM symbol corresponding to an SCS of a subcarrier in the second frequency-domain resource pool. 
     In one embodiment, the first multicarrier symbol and a second multicarrier symbol correspond to a same SCS. 
     In one embodiment, the second multicarrier symbol and the first multicarrier symbol are the same. 
     In one embodiment, the second multicarrier symbol and the first multicarrier symbol are different. 
     In one embodiment, the second multicarrier symbol is a virtual multicarrier symbol. 
     In one embodiment, the second multicarrier symbol is a multicarrier symbol actually occupied by the first node. 
     In one embodiment, the second multicarrier symbol is not occupied by the first node. 
     In one embodiment, the second multicarrier symbol is a multicarrier symbol used as a time reference. 
     In one embodiment, a start time of the second multicarrier symbol is a start time of a CP in the second multicarrier symbol. 
     In one embodiment, a start time of the second multicarrier symbol comprises an influence of a Timing Advance (TA). 
     In one embodiment, an end time for receiving the second signal is an end time for receiving a latest OFDM symbol occupied by the second signal. 
     In one embodiment, an end time for receiving the second signal is an end time for receiving a slot to which a latest OFDM symbol occupied by the second signal belongs. 
     In one embodiment, a start time of the second multicarrier symbol is later than an end time for receiving the second signal. 
     In one embodiment, a start time of the second multicarrier symbol is the same as an end time for receiving the second signal. 
     In one embodiment, the above phrase of “when the first multicarrier symbol is not earlier than the second multicarrier symbol, transmitting a second signaling” refers to: when a start time of the first multicarrier symbol is not earlier than a start time of the second multicarrier symbol, transmitting the second information. 
     In one embodiment, the above phrase of “when the first multicarrier symbol is not earlier than the second multicarrier symbol, transmitting a second signaling” refers to: when an end time of the first multicarrier symbol is not earlier than an end time of the second multicarrier symbol, transmitting the second information. 
     In one embodiment, the second information comprises physical-layer information. 
     In one embodiment, the second information comprises higher-layer information. 
     In one embodiment, the second information comprises partial or all UCI. 
     In one embodiment, the second information comprises one or a plurality of fields in UCI. 
     In one embodiment, the second information is transmitted through a Physical Uplink Control Channel. 
     In one embodiment, the second information is transmitted through a Physical Uplink Shared CHannel (PUSCH). 
     In one embodiment, the second information is piggybacked through a Physical Uplink Shared CHannel (PUSCH). 
     In one embodiment, the second information is transmitted through an Uplink Shared Channel (UL-SCH). 
     In one embodiment, the second information comprises all or partial bits in a HARQ-ACK codebook. 
     In one embodiment, the second information comprises a sidelink HARQ report. 
     In one embodiment, the second information comprises information on whether the first signal is correctly received. 
     In one embodiment, the second information comprises information on whether the first signal is not correctly received. 
     In one embodiment, the second information comprises information on whether a TB carried by the first signal needs to be retransmitted. 
     In one embodiment, the second information comprises information on whether a TB carried by the first signal needs to be re-scheduled. 
     In one embodiment, the second information comprises all or partial bits in a CSI feedback. 
     In one embodiment, the second information is carried by a baseband signal. 
     In one embodiment, the second information is carried by an RF signal. 
     In one embodiment, the second information is transmitted via an air interface. 
     In one embodiment, the second information is transmitted via a radio interface. 
     In one embodiment, the second information is transmitted via a Uu interface. 
     In one embodiment, the second information is transmitted through uplink. 
     In one embodiment, the second information is transferred from a physical layer of the first node to a higher layer of the first node. 
     In one embodiment, the second information is transmitted inside the first node. 
     In one embodiment, a sidelink HARQ feedback is used to determine the second information. 
     In one embodiment, a sidelink CSI feedback is used to determine the second information. 
     In one embodiment, a sidelink PHR feedback is used to determine the second information. 
     In one embodiment, the above phrase of “the target time-frequency resource set being used for a transmission of the second information” includes the following meaning: a radio signal occupying the target time-frequency resource set carries the second information. 
     In one embodiment, the above phrase of “the target time-frequency resource set being used for a transmission of the second information” includes the following meaning: a channel carrying the second information occupies the target time-frequency resource set. 
     In one embodiment, the above phrase of “the target time-frequency resource set being used for a transmission of the second information” includes the following meaning: the target time-frequency resource set is used by the first node in the present disclosure for a transmission of the second information. 
     In one embodiment, the above phrase of “the target time-frequency resource set being used for a transmission of the second information” includes the following meaning: time-frequency resources occupied by a channel carrying the second information belong to the target time-frequency resource set. 
     In one embodiment, radio resources occupied by the second signal comprise time-frequency resources occupied by the second signal and code-domain resources occupied by the second signal. 
     In one embodiment, radio resources occupied by the second signal comprise time-frequency resources occupied by the second signal. 
     In one embodiment, radio resources occupied by the second signal comprise code-domain resources occupied by the second signal. 
     In one embodiment, radio resources occupied by the second signal comprise time-frequency resources occupied by the second signal and sequence resources generating the second signal. 
     In one embodiment, radio resources occupied by the second signal comprise sequence resources generating the second signal. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: time-frequency resources occupied by the first signal are used by a first node in the present disclosure to determine radio resources occupied by the second signal. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: time-frequency resources occupied by the first signal are used to determine time-frequency resources occupied by the second signal. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: time-frequency resources occupied by the first signal are used to determine code-domain resources occupied by the second signal. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: time-frequency resources occupied by the first signal are used to determine sequence resources generating the second signal. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: time-frequency resources occupied by the first signal are used to determine time-frequency resources occupied by the second signal and sequence resources generating the second signal. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: time-frequency resources occupied by the first signal are used to determine time-frequency resources occupied by the second signal and code-domain resources occupied by the second signal. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal according to a mapping relation. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal according to a corresponding relation. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal according to an implicit relation. 
     In one embodiment, the above phrase of “time-frequency resources occupied by the first signal being used to determine radio resources occupied by the second signal” includes the following meaning: radio resources occupied by the second signal are associated with time-frequency resources occupied by the first signal. 
     In one embodiment, the phrase of “information carried by the second signal being used to determine the second information” includes the following meaning: the second information comprises information carried by the second signal. 
     In one embodiment, the phrase of “information carried by the second signal being used to determine the second information” includes the following meaning: the second information copies information carried by the second signal. 
     In one embodiment, the phrase of “information carried by the second signal being used to determine the second information” includes the following meaning: the second signal is used to determine whether the first signal is correctly received, and the second information comprises an indication of whether the first signal is correctly received. 
     In one embodiment, the phrase of “information carried by the second signal being used to determine the second information” includes the following meaning: information carried by the second information and information carried by the second signal are the same. 
     In one embodiment, the phrase of “information carried by the second signal being used to determine the second information” includes the following meaning: HARQ-ACK information carried by the second information and HARQ-ACK information carried by the second signal are the same. 
     In one embodiment, the phrase of “information carried by the second signal being used to determine the second information” includes the following meaning: the second information comprises HARQ-ACK information carried by the second signal. 
     In one embodiment, the phrase of “information carried by the second signal being used to determine the second information” includes the following meaning: information carried by the second signal is used to generate the second signal. 
     In one embodiment, the phrase of “information carried by the second signal being used to determine the second information” includes the following meaning: information carried by the second signal is used by the first node in the present disclosure to determine the second information. 
     In one embodiment, a transmitter of the first information is a base station. 
     In one embodiment, a transmitter of the first information is a Transmission Reception Point (TRP). 
     In one embodiment, a transmitter of the first information is a network device. 
     In one embodiment, a transmitter of the first information is gNB. 
     In one embodiment, a transmitter of the first information is eNB. 
     In one embodiment, a transmitter of the first information is a User Equipment (UE). 
     In one embodiment, a transmitter of the first information is a Road Side Unit (RSU). 
     In one embodiment, a transmitter of the first information is the first node in the present disclosure. 
     In one embodiment, a transmitter of the first information is the second node in the present disclosure. 
     In one embodiment, a transmitter of the second signal is a base station. 
     In one embodiment, a transmitter of the second signal is a network device. 
     In one embodiment, a transmitter of the second signal is a UE. 
     In one embodiment, a transmitter of the second signal is a Road Side Unit (RSU). 
     In one embodiment, a transmitter of the second signal is a node other than the second node in the present disclosure. 
     In one embodiment, a transmitter of the second signal is an OnBoard Unit (OBU). 
     In one embodiment, the above phrase of “a transmitter of the first information being different from a transmitter of the second signal” includes the following meaning: the first information and the second signal are transmitted via different air interfaces. 
     In one embodiment, the above phrase of “a transmitter of the first information being different from a transmitter of the second signal” includes the following meaning: the first information and the second signal are transmitted through different links. 
     In one embodiment, the above phrase of “a transmitter of the first information being different from a transmitter of the second signal” includes the following meaning: the first information is transmitted via a Uu interface, and the second signal is transmitted via a PC5 interface. 
     In one embodiment, the above phrase of “a transmitter of the first information being different from a transmitter of the second signal” includes the following meaning: the first information is transmitted through downlink, and the second signal is transmitted through sidelink. 
     In one embodiment, the above phrase of “a transmitter of the first information being different from a transmitter of the second signal” includes the following meaning: a transmitter of the first information and a transmitter of the second signal are non-co-located. 
     In one embodiment, the above phrase of “a transmitter of the first information being different from a transmitter of the second signal” includes the following meaning: node types of a transmitter of the first information and a transmitter of the second signal are different. 
     In one embodiment, the above phrase of “a transmitter of the first information being different from a transmitter of the second signal” includes the following meaning: a transmitter of the first information is a base station, and a transmitter of the second signal is a UE. 
     In one embodiment, the above phrase of “a transmitter of the first information being different from a transmitter of the second signal” includes the following meaning: a transmitter of the first information is a gNB/eNB, and a transmitter of the second signal is an RSU. 
     In one embodiment, also comprising: 
     transmitting a second signaling; 
     herein, the second signaling is used to indicate time-frequency resources occupied by the first signal and a Modulation Coding Scheme (MCS) adopted by the first signal. 
     Embodiment 2 
     Embodiment 2 illustrates a schematic diagram of a network architecture according to the present disclosure, as shown in  FIG. 2 .  FIG. 2  illustrates a network architecture  200  of 5G NR, Long-Term Evolution (LTE) and Long-Term Evolution Advanced (LTE-A) systems. The 5G NR or LIE network architecture  200  may be called a 5G System (5GS)/Evolved Packet System (EPS)  200  or other appropriate terms. The 5GS/EPS  200  may comprise one or more UEs  201 , an NG-RAN  202 , a 5G Core Network/Evolved Packet Core (5GC/EPC)  210 , a Home Subscriber Server (HSS)/Unified Data Management (UDM)  220  and an Internet Service  230 . The 5GS/EPS  200  may be interconnected with other access networks. For simple description, the entities/interfaces are not shown. As shown in  FIG. 2 , the 5GS/EPS  200  provides packet switching services. Those skilled in the art will readily understand that various concepts presented throughout the present disclosure can be extended to networks providing circuit switching services or other cellular networks. The NG-RAN  202  comprises an NR node B (gNB)  203  and other gNBs  204 . The gNB  203  provides UE  201 -oriented user plane and control plane protocol terminations. The gNB  203  may be connected to other gNBs  204  via an Xn interface (for example, backhaul). The gNB  203  may be called a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Base Service Set (BSS), an Extended Service Set (ESS), a Transmitter Receiver Point (TRP) or some other applicable terms. The gNB  203  provides an access point of the 5GC/EPC  210  for the UE  201 . Examples of the UE  201  include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistant (PDA), satellite Radios, non-terrestrial base station communications, Satellite Mobile Communications, Global Positioning Systems (GPS), multimedia devices, video devices, digital audio players (for example, MP3 players), cameras, game consoles, unmanned aerial vehicles (UAV), aircrafts, narrow-band Internet of Things (IoT) devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art also can call the UE  201  a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a radio communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user proxy, a mobile client, a client or some other appropriate terms. The gNB  203  is connected to the 5GC/EPC  210  via an S1/NG interface. The 5GC/EPC  210  comprises a Mobility Management Entity (MME)/Authentication Management Field (AMF)/Session Management Function (SMF)  211 , other MMEs/AMFs/SMFs  214 , a Service Gateway (S-GW)/User Plane Function (UPF)  212  and a Packet Date Network Gateway (P-GW)/UPF  213 . The MME/AMF/SMF  211  is a control node for processing a signaling between the UE  201  and the 5GC/EPC  210 . Generally, the MME/AMF/SMF  211  provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW/UPF  212 , the S-GW/UPF  212  is connected to the P-GW/UPF  213 . The P-GW provides UE IP address allocation and other functions. The P-GW/UPF  213  is connected to the Internet Service  230 . The Internet Service  230  comprises IP services corresponding to operators, specifically including Internet, Intranet, IP Multimedia Subsystem (IMS) and Packet Switching Streaming Services (PSS). 
     In one embodiment, the UE  201  corresponds to the first node in the present disclosure. 
     In one embodiment, the UE  201  supports transmission in a sidelink. 
     In one embodiment, the UE  201  supports a PC5 interface. 
     In one embodiment, the UE 201  supports Internet of Vehicles. 
     In one embodiment, the UE 201  supports V2X traffic. 
     In one embodiment, the gNB  201  corresponds to the second node in the present disclosure. 
     In one embodiment, the gNB  201  supports Internet of Vehicles. 
     In one embodiment, the gNB  201  supports V2X traffic. 
     Embodiment 3 
     Embodiment 3 illustrates a schematic diagram of an example of a radio protocol architecture of a user plane and a control plane according to one embodiment of the present disclosure, as shown in  FIG. 3 .  FIG. 3  is a schematic diagram illustrating an embodiment of a radio protocol architecture of a user plane  350  and a control plane  300 . In  FIG. 3 , the radio protocol architecture for a first node (UE, gNB or vehicle equipment or vehicle-mounted communication module in V2X) and a second node (gNB, UE or vehicle equipment or vehicle-mounted communication module in V2X), or between two UEs is represented by three layers, which are a layer 1, a layer 2 and a layer 3, respectively. The layer 1 (L1) is the lowest layer and performs signal processing functions of various PHY layers. The L1 is called PHY  301  in the present disclosure. The layer 2 (L2)  305  is above the PHY  301 , and is in charge of the link between the first node and the second node via the PHY  301 . L2  305  comprises a MAC sublayer  302 , a Radio Link Control (RLC) sublayer  303  and a Packet Data Convergence Protocol (PDCP) sublayer  304 . All the three sublayers terminate at the second node. The PDCP sublayer  304  provides multiplexing among variable radio bearers and logical channels. The PDCP sublayer  304  provides security by encrypting a packet and provides support for a first node handover between second nodes. The RLC sublayer  303  provides segmentation and reassembling of a higher-layer packet, retransmission of a lost packet, and reordering of a data packet so as to compensate the disordered receiving caused by HARQ. The MAC sublayer  302  provides multiplexing between a logical channel and a transport channel. The MAC sublayer  302  is also responsible for allocating between first nodes various radio resources (i.e., resource block) in a cell. The MAC sublayer  302  is also in charge of HARQ operation. The RRC sublayer  306  in layer 3 (L3) of the control plane  300  is responsible for acquiring radio resources (i.e., radio bearer) and configuring the lower layer with an RRC signaling between a second node and a first node. The radio protocol architecture of the user plane  350  comprises layer 1 (L1) and layer 2 (L2). In the user plane  350 , the radio protocol architecture for the first node and the second node is almost the same as the corresponding layer and sublayer in the control plane  300  for physical layer  351 , PDCP sublayer  354 , RLC sublayer  353  and MAC sublayer  352  in L2 layer  355 , but the PDCP sublayer  354  also provides a header compression for a higher-layer packet so as to reduce a radio transmission overhead. The L2 layer  355  in the user plane  350  also includes Service Data Adaptation Protocol (SDAP) sublayer  356 , which is responsible for the mapping between QoS flow and Data Radio Bearer (DRB) to support the diversity of traffic. Although not described in  FIG. 3 , the first node may comprise several higher layers above the L2 layer  355 , such as a network layer (e.g., IP layer) terminated at a P-GW of the network side and an application layer terminated at the other side of the connection (e.g., a peer UE, a server, etc.). 
     In one embodiment, the radio protocol architecture in  FIG. 3  is applicable to the first node in the present disclosure. 
     In one embodiment, the radio protocol architecture in  FIG. 3  is applicable to the second node in the present disclosure. 
     In one embodiment, the first information in the present disclosure is generated by the RRC  306 . 
     In one embodiment, the first information in the present disclosure is generated by the MAC  302  or the MAC  352 . 
     In one embodiment, the first information in the present disclosure is generated by the PHY  301  or the PHY  351 . 
     In one embodiment, the first signal in the present disclosure is generated by the RRC  306 . 
     In one embodiment, the first signal in the present disclosure is generated by the MAC  302  or the MAC  352 . 
     In one embodiment, the first signal in the present disclosure is generated by the PHY  301  or the PHY  351 . 
     In one embodiment, the second signal in the present disclosure is generated by the RRC  306 . 
     In one embodiment, the second signal in the present disclosure is generated by the MAC  302  or the MAC  352 . 
     In one embodiment, the second signal in the present disclosure is generated by the PHY  301  or the PHY  351 . 
     In one embodiment, the second information in the present disclosure is generated by the RRC  306 . 
     In one embodiment, the second information in the present disclosure is generated by the MAC  302  or the MAC  352 . 
     In one embodiment, the second information in the present disclosure is generated by the PHY  301  or the PHY  351 . 
     In one embodiment, the first signaling in the present disclosure is generated by the RRC  306 . 
     In one embodiment, the first signaling in the present disclosure is generated by the MAC  302  or the MAC  352 . 
     In one embodiment, the first signaling in the present disclosure is generated by the PHY  301  or the PHY  351 . 
     In one embodiment, the third information in the present disclosure is generated by the RRC  306 . 
     In one embodiment, the third information in the present disclosure is generated by the MAC  302  or the MAC  352 . 
     In one embodiment, the third information in the present disclosure is generated by the PHY  301  or the PHY  351 . 
     In one embodiment, the fourth information in the present disclosure is generated by the RRC  306 . 
     In one embodiment, the fourth information in the present disclosure is generated by the MAC  302  or the MAC  352 . 
     In one embodiment, the fourth information in the present disclosure is generated by the PHY  301  or the PHY  351 . 
     Embodiment 4 
     Embodiment 4 illustrates a schematic diagram of a first node and a second node according to the present disclosure, as shown in  FIG. 4 . 
     The first node ( 450 ) may comprise a controller/processor  490 , a data source/buffer  480 , a receiving processor  452 , a transmitter/receiver  456  and a transmitting processor  455 , wherein the transmitter/receiver  456  comprises an antenna  460 . 
     The second node ( 410 ) may comprise a controller/processor  440 , a data source/buffer  430 , a receiving processor  412 , a transmitter/receiver  416  and a transmitting processor  415 , wherein the transmitter/receiver  416  comprises an antenna  420 . 
     In Downlink, a higher-layer packet, such as high-layer information comprised in the first information, the first signaling (if higher-layer information is comprised in the first signaling), the third information and the fourth information in the present disclosure, is provided to the controller/processor  440 . The controller/processor  440  implements the functionality of the L2 layer and the higher layer. In DL transmission, the controller/processor  440  provides header compression, encryption, packet segmentation and reordering and multiplexing between a logical channel and a transport channel, as well as radio resource allocation for the first node  450  based on varied priorities. The controller/processor  440  is also in charge of HARQ operation, retransmission of a lost packet, and a signaling to the first node  450 , for instance, the first information, the first signaling (if higher layer information is comprised in the first signaling), the third information and the fourth information are all generated in the controller/processor  440 . The transmitting processor  415  implements various signal processing functions on the L1 layer (i.e., physical layer), including coding, interleaving, scrambling, modulation, power control/distribution, precoding, and generation of a physical-layer control signaling, etc. The generation of physical-layer signals of the first information, the first signaling, the third information and the fourth information in the present disclosure are completed by the transmitting processor  415 , and the transmitting processor  415  divides the generated modulation symbols into parallel streams and maps each stream to a corresponding multi-carrier subcarrier and/or a multi-carrier symbol, which are then transmitted in the form of a radio-frequency signal by the transmitting processor  415  mapping to the antenna  420  via the transmitter  416 . At the receiving side, each receiver  456  receives an RF signal via a corresponding antenna  460 , each receiver  456  recovers baseband information modulated to the RF carrier and provides the baseband information to the receiving processor  452 . The receiving processor  452  provides various signal receiving functions for the L1 layer. The signal receiving processing functions include reception of physical layer signals of the first information, the first signaling, the third information and the fourth information of the present disclosure, demodulation of multicarrier symbols in multicarrier symbol streams based on each modulation scheme (e.g., BPSK, QPSK), and then descrambling, decoding and de-interleaving of the demodulated symbols so as to recover data or control signals transmitted by the second node  410  on a physical channel, and the data or control signals are later provided to the controller/processor  490 . The controller/processor  490  is in charge of the function of L2 layer and above layers, and the controller/processor  490  interprets the first information, the first signaling (if higher layer information is comprised in the first signaling), the third information and the fourth information in the present disclosure. The controller/processor can be connected to a memory  480  that stores program code and data. The memory  480  may be called a computer readable medium. 
     In UL transmission, the data source/memory  480  provides higher-layer data to the controller/processor  490 . The data source/buffer  480  represents all protocol layers of the L2 layer and above the L2 layer. The controller/processor  490  performs the L2 layer protocol for the user plane and the control plane by providing header compression, encryption, packet segmentation and reordering, as well as multiplexing between a logic channel and a transport channel through radio resources allocation based on the second node  410 . The controller/processor  490  is also in charge of HARQ operation, retransmission of a lost packet, and a signaling to the second node  410 . The transmitting processor  455  provides various signal transmitting processing functions for the L1 layer (that is, PHY). The generation of the second information in the present disclosure is completed at the transmitting processor  415 . The signal transmission processing functions include coding and interleaving so as to facilitate Forward Error Correction (FEC) at the UE  450  as well as modulation of baseband signals based on various modulation schemes (i.e., BPSK, QPSK). The modulated symbols are divided into parallel streams and each stream is mapped onto a corresponding multicarrier subcarrier and/or multicarrier symbol, which is later mapped from the transmitting processor  455  to the antenna  460  via the transmitter  456  to be transmitted in the form of RF signal. The receiver  416  receives a radio-frequency signal via its corresponding antenna  420 , and each receiver  416  recovers baseband information modulated to a radio-frequency carrier, and supplies the baseband information to the receiving processor  412 . The receiving processor  412  provides various signal receiving and processing functions for the L1 layer (i.e., PHY), including receiving and processing the second information in the present disclosure, the signal receiving and processing function includes acquisition of multi-carrier symbol streams, demodulation based on each modulation scheme (i.e., BPSK, QPSK), then the decoding and de-interleaving to recover data and/or node  450  on the PHY. The data and the control signal are then provided to the controller/processor  440 . The controller/processor  440  implements functions of L2 layer. The controller/processor can be connected to a buffer  430  that stores program code and data. The buffer  430  may be called a computer readable medium. 
     In one embodiment, the first node  450  comprises at least one processor and at least one memory. The at least one memory comprises computer program codes; the at least one memory and the computer program codes are configured to be used in collaboration with the at least one processor. The first node  450  at least: receives first information, the first information is used to determine a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain is a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belong to a first frequency-domain resource pool; transmits a first signal, frequency-domain resources occupied by the first signal belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; receives a second signal, a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; when the first multicarrier symbol is not earlier than the second multicarrier symbol, transmits second information; herein, when the second information is transmitted, the target time-frequency resource set is used for a transmission of the second information; time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal; information carried by the second signal is used to determine the second information, and a transmitter of the first information is different from a transmitter of the second signal. 
     In one embodiment, the first node  450  comprises a memory that stores a computer readable instruction program. The computer readable instruction program generates an action when executed by at least one processor. The action includes: receiving first information, the first information being used to determine a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain being a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belonging to a first frequency-domain resource pool; transmitting a first signal, frequency-domain resources occupied by the first signal belonging to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool being used to determine a reference delay; receiving a second signal, a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal being equal to the reference delay, the start time of the second multicarrier symbol being not earlier than the end time for receiving the second signal; when the first multicarrier symbol is not earlier than the second multicarrier symbol, transmitting second information; herein, when the second information is transmitted, the target time-frequency resource set is used for a transmission of the second information; time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal; information carried by the second signal is used to determine the second information, and a transmitter of the first information is different from a transmitter of the second signal. 
     In one embodiment, the second node  410  comprises at least one processor and at least one memory. The at least one memory comprises computer program codes; the at least one memory and the computer program codes are configured to be used in collaboration with the at least one processor. The second node  410  at least: transmits first information and a first signaling, the first information is used to indicate a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain is a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belong to a first frequency-domain resource pool; receives second information; wherein the first signaling is used to indicate time-frequency resources occupied by a first signal, frequency-domain resources occupied by the first signal belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; time-frequency resources occupied by the first signal are used to indicate radio resources occupied by a second signal; a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; the target time-frequency resource set is used for a transmission of the second information; information carried by the second signal is used to determine the second information, and a transmitter of the second signal is a node other than the second node; the first multicarrier symbol is not earlier than the second multicarrier symbol. 
     In one embodiment, the second node  410  comprises a memory that stores a computer readable instruction program. The computer readable instruction program generates an action when executed by at least one processor. The action includes: transmitting first information and a first signaling, the first information being used to indicate a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain being a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belonging to a first frequency-domain resource pool; and receiving second information; wherein the first signaling is used to indicate time-frequency resources occupied by a first signal, frequency-domain resources occupied by the first signal belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; time-frequency resources occupied by the first signal are used to indicate radio resources occupied by a second signal; a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; the target time-frequency resource set is used for a transmission of the second information; information carried by the second signal is used to determine the second information, and a transmitter of the second signal is a node other than the second node; the first multicarrier symbol is not earlier than the second multicarrier symbol. 
     In one embodiment, the first node  450  is a UE. 
     In one embodiment, the first node  450  is a UE that supports V2X. 
     In one embodiment, the first node  450  is a vehicle equipment. 
     In one embodiment, the first node  450  is a Road Side Unit (RSU) device. 
     In one embodiment, the second node  410  is a base station (gNB/eNB). 
     In one embodiment, the second node  410  is a base station that supports V2X. 
     In one embodiment, the receiver  456  (including the antenna  460 ), the receiving processor  452  and the controller/processor  490  are used to receive the first information in the present disclosure. 
     In one embodiment, the transmitter  456  (including the antenna  460 ), the transmitting processor  455  and the controller/processor  490  are to transmit the second information in the present disclosure. 
     In one embodiment, the receiver  456  (including the antenna  460 ), the receiving processor  452  and the controller/processor  490  are used to receive the first signaling in the present disclosure. 
     In one embodiment, the receiver  456  (including the antenna  460 ), the receiving processor  452  and the controller/processor  490  are used to receive the third information in the present disclosure. 
     In one embodiment, the receiver  456  (including the antenna  460 ), the receiving processor  452  and the controller/processor  490  are used to receive the fourth information in the present disclosure. 
     In one embodiment, the transmitter  416  (including the antenna  420 ), the transmitting processor  415  and the controller/processor  440  are used to transmit the first information in the present disclosure. 
     In one embodiment, the receiver  416  (including the antenna  420 ), the receiving processor  412  and the controller/processor  440  are used to receive the second information in the present disclosure. 
     In one embodiment, the transmitter  416  (including the antenna  420 ), the transmitting processor  415  and the controller/processor  440  are used to transmit the first signaling in the present disclosure. 
     In one embodiment, the transmitter  416  (including the antenna  420 ), the transmitting processor  415  and the controller/processor  440  are used to transmit the third information in the present disclosure. 
     In one embodiment, the transmitter  416  (including the antenna  420 ), the transmitting processor  415  and the controller/processor  440  are used to transmit the fourth information in the present disclosure. 
     Embodiment 5 
     Embodiment 5 illustrates a schematic diagram of a first node and another UE according to the present disclosure, as shown in  FIG. 5 . 
     The first node ( 550 ) comprises a controller/processor  590 , a memory  580 , a receiving processor  552 , a transmitter/receiver  556 , and a transmitting processor  555 , the transmitter/receiver  556  comprising an antenna  560 . Composition in the another UE ( 500 ) is the same as that in the first node  550 . 
     In sidelink transmission, a higher layer packet (comprising a first signal in the present disclosure) is provided to the controller/processor  590 , which implements function of L2 layer. In sidelink transmission, the controller/processor  590  provides header compression, encryption, packet segmentation and reordering, and multiplexing between a logical channel and a transport channel. The controller/processor  590  is also responsible for HARQ operation (if supported), repeated transmission, and a signaling to the first-type communication node  500 . The transmitting processor  555  implements various signal processing functions for L1 layer (that is, physical layer), comprising coding, interleaving, scrambling, modulation, power control/distribution, precoding and generation of physical layer control signaling, generation of the first signal in the present disclosure is completed at the transmitting processor  555 . The modulated symbols are divided into parallel streams and each stream is mapped onto a corresponding multicarrier subcarrier and/or multicarrier symbol, which is later mapped from the transmitting processor  555  to the antenna  560  via the transmitter  556  to be transmitted in the form of RF signal. At the receiving side, each receiver  516  receives an RF signal via a corresponding antenna  520 , each receiver  516  recovers baseband information modulated to the RF carrier and provides the baseband information to the receiving processor  512 . The receiving processor  512  performs signal receiving processing functions of the L1 layer. The signal receiving and processing function includes receiving a first signal in the present disclosure, demodulating based on various modulation schemes (e.g., BPSK, and QPSK) via a multicarrier symbol in a multicarrier symbol stream, then descrambling, decoding and de-interleaving to recover a data or a control signal transmitted by the first communication node  550  on a physical channel, and providing the data and the control signal to the controller/processor  540 . The controller/processor  540  implements the functionality of the L2 layer, the controller/processor  540  interprets the first signal of the present disclosure. The controller/processor can be connected to a memory  530  that stores program code and data. The memory  530  may be called a computer readable medium. In particular, the second signal in the present disclosure, is generated at the transmitting processor  515  in the UE  500 , which is later mapped to the antenna  520  via the transmitter  516  to be transmitted in the form of an RF signal. At the receiving end, each receiver  556  receives the RF signal of the second signal via its corresponding antenna  560 , each receiver  556  recovers the baseband information modulated onto the RF carrier and provides the baseband information to the receiving processor  552 , and the receiving processor  552  interprets the second signal in the present disclosure. 
     In one embodiment, the transmitter  556  (including the antenna  560 ), the transmitting processor  555  and the controller/processor  590  are to transmit the first signal in the present disclosure. 
     In one embodiment, the receiver  556  (including the antenna  560 ) and the receiving processor  552  are used to receive the second signal in the present disclosure. 
     In one embodiment, the receiver  516  (including the antenna  520 ), the receiving processor  512  and the controller/processor  540  are used to receive the first signal in the present disclosure. 
     In one embodiment, the transmitter  516  (including the antenna  520 ), the transmitting processor  515  and the controller/processor  540  are used to transmit the second signal in the present disclosure. 
     Embodiment 6 
     Embodiment 6 illustrates a flowchart of radio signal transmission according to one embodiment of the present disclosure, as shown in  FIG. 6 . In  FIG. 6 , a second node N 1  is a maintenance base station of a serving cell of a first node U 2 , the first node U 2  and another UE U 3  are in communications via sidelink, and steps in dotted boxes are optional. It is particularly underlined that the order illustrated in the embodiment does not put constraints over sequences of signal transmissions and implementations. 
     The second node N 1  transmits third information in step S 11 , transmits fourth information in step S 12 , transmits first information in step S 13 , transmits a first signaling in step S 14 , and receives second information in step S 15 . 
     The first node U 2  receives third information in step S 21 , receives fourth information in step S 22 , receives first information in step S 23 , receives a first signaling in step S 24 , transmits a first signal in step S 25 , receives a second signal in step S 26 , and transmits second information in step S 27 . 
     Another UE U 3  receives a first signal in step S 31  and transmits a second signal in step S 32 . 
     In embodiment 6, the first information in the present disclosure is used to determine a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain is a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belong to a first frequency-domain resource pool; frequency-domain resources occupied by the first signal in the present disclosure belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal in the present disclosure is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; the target time-frequency resource set is used for a transmission of the second information in the present disclosure; time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal; information carried by the second signal is used to determine the second information, and a transmitter of the first information is different from a transmitter of the second signal; the first signaling is used to determine time-frequency resources occupied by the first signal, the first signaling is used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling; the third information is used to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool, and the fourth information is used to determine the second frequency-domain resource pool and an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, the third information is higher-layer information. 
     In one embodiment, the third information is transmitted through a higher-layer signaling. 
     In one embodiment, the third information is transmitted through a physical-layer signaling. 
     In one embodiment, the third information comprises all or part of a higher-layer signaling. 
     In one embodiment, the third information comprises all or part of a physical-layer signaling. 
     In one embodiment, the third information comprises all or partial IEs in an RRC signaling. 
     In one embodiment, the third information comprises all or partial fields in an IE in an RRC signaling. 
     In one embodiment, the third information comprises all or partial fields in a MAC layer signaling. 
     In one embodiment, the third information comprises all or part of a MAC Control Element (CE). 
     In one embodiment, the third information comprises all or part of a MAC Header. 
     In one embodiment, the third information comprises all or part of a Random Access Response (RAR) MAC payload. 
     In one embodiment, the third information comprises all or part of Msg2 in random access procedure. 
     In one embodiment, the third information comprises all or part of MsgB in random access procedure. 
     In one embodiment, the third information is transmitted through a Downlink Shared Channel (DL-SCH). 
     In one embodiment, the third information is transmitted through a Physical Downlink Shared Channel (PDSCH). 
     In one embodiment, the third information is broadcast. 
     In one embodiment, the third information is unicast. 
     In one embodiment, the third information is Cell-Specific. 
     In one embodiment, the third information is UE-specific. 
     In one embodiment, the third information is UE group-specific. 
     In one embodiment, the third information is transmitted through a PDCCH. 
     In one embodiment, the third information comprises all or partial fields of a DCI signaling. 
     In one embodiment, the third information comprises a “BWP-Uplink” IE. 
     In one embodiment, the third information comprises an “initialUplinkBWP” IE. 
     In one embodiment, the above phrase of “the third information being used to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool” includes the following meaning: the third information is used by the first node in the present disclosure to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the above phrase of “the third information being used to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool” includes the following meaning: the third information is used to directly indicate the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the above phrase of “the third information being used to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool” includes the following meaning: the third information is used to indirectly indicate the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the above phrase of “the third information being used to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool” includes the following meaning: the third information is used to explicitly indicate the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the above phrase of “the third information being used to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool” includes the following meaning: the third information is used to implicitly indicate the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the fourth information is higher-layer information. 
     In one embodiment, the fourth information is transmitted through a higher-layer signaling. 
     In one embodiment, the fourth information is transmitted through a physical-layer signaling. 
     In one embodiment, the fourth information comprises all or part of a higher-layer signaling. 
     In one embodiment, the fourth information comprises all or part of a physical-layer signaling. 
     In one embodiment, the fourth information comprises all or partial IEs in an RRC signaling. 
     In one embodiment, the fourth information comprises all or partial fields in an IE in a RRC signaling. 
     In one embodiment, the fourth information comprises all or partial fields in a MAC layer signaling. 
     In one embodiment, the fourth information comprises all or part of a MAC Control Element (CE). 
     In one embodiment, the fourth information comprises all or part of a MAC Header. 
     In one embodiment, the fourth information is transmitted through a Downlink Shared Channel (DL-SCH). 
     In one embodiment, the fourth information is transmitted through a Physical Downlink Shared Channel (PDSCH). 
     In one embodiment, the fourth information is broadcast. 
     In one embodiment, the fourth information is unicast. 
     In one embodiment, the fourth information is Cell-Specific. 
     In one embodiment, the fourth information is UE-specific. 
     In one embodiment, the fourth information is UE group-specific. 
     In one embodiment, the fourth information is transmitted through a PDCCH. 
     In one embodiment, the fourth information comprises all or partial fields of a DCI signaling. 
     In one embodiment, the fourth information comprises a “BWP-Sidelink” IE. 
     In one embodiment, the fourth information comprises an “initialSidelinkBWP” IE. 
     In one embodiment, the fourth information comprises a “BWP-SidelinkCommon” IE. 
     In one embodiment, the fourth information comprises a “BWP-UplinkDedicated” IE. 
     In one embodiment, the third information and the fourth information are carried by two different RRC signalings. 
     In one embodiment, the third information and the fourth information are carried by a same RRC signaling. 
     In one embodiment, two IEs of a same RRC signaling respectively carry the third information and the fourth information. 
     In one embodiment, two fields in a same IE of a same RRC signaling respectively carry the third information and the fourth information. 
     Embodiment 7 
     Embodiment 7 illustrates a flowchart of radio signal transmission according to one embodiment of the present disclosure, as shown in  FIG. 7 . In  FIG. 7 , a second node N 4  is a maintenance base station of a serving cell of a first node U 5 , the first node U 5  and another UE U 6  are in communications via sidelink, and steps in dotted boxes are optional. It is particularly underlined that the order illustrated in the embodiment does not put constraints over sequences of signal transmissions and implementations. 
     The second node N 4  transmits third information in step S 41 , transmits fourth information in step S 42 , transmits first information in step S 43 , and transmits a first signaling in step S 44 . 
     The first node U 5  receives third information in step S 51 , receives fourth information in step S 52 , receives first information in step S 53 , receives a first signaling in step S 54 , transmits a first signal in step S 55  and receives a second signal in step S 56 . 
     Another UE U 6  receives a first signal in step S 61 , and transmits a second signal in step S 62 . 
     In embodiment 7, the first information in the present disclosure is used to determine a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain is a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belong to a first frequency-domain resource pool; frequency-domain resources occupied by the first signal in the present disclosure belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal in the present disclosure is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal; a transmitter of the first information is different from a transmitter of the second signal; the first signaling is used to determine time-frequency resources occupied by the first signal, the first signaling is used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling; the third information is used to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool, and the fourth information is used to determine the second frequency-domain resource pool and an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, the first signaling is a baseband signal. 
     In one embodiment, the first signaling is an RF signal. 
     In one embodiment, the first signaling is transmitted via an air interface. 
     In one embodiment, the first signaling is transmitted via a radio interface. 
     In one embodiment, the first signaling is transmitted via a PC5 interface. 
     In one embodiment, the first signaling is transmitted via a Uu interface. 
     In one embodiment, the first signaling is transmitted through sidelink. 
     In one embodiment, the first signaling is transmitted through downlink. 
     In one embodiment, the first signaling is a physical-layer signaling. 
     In one embodiment, the first signaling is a dynamic signaling. 
     In one embodiment, the first signaling carries DCI. 
     In one embodiment, the first signaling carries SCI. 
     In one embodiment, the first signaling is a PDCCH. 
     In one embodiment, the first signaling is a PSCCH. 
     In one embodiment, the first signaling is UE-specific. 
     In one embodiment, the first signaling is Cell-Specific. 
     In one embodiment, the first signaling is transmitted through a PDCCH scrambled by a UE-Specific Radio Network Temporary Identity (RNTI). 
     In one embodiment, the first signaling is transmitted through a PDCCH scrambled by an SL-SPS-V-RNTI. 
     In one embodiment, the first signaling is transmitted through a PDCCH scrambled by an SL-V-RNTI. 
     In one embodiment, the first signaling is transmitted via an air interface. 
     In one embodiment, the first signaling is transmitted via a radio interface. 
     In one embodiment, the first signaling is transmitted via a PC5 interface. 
     In one embodiment, the first signaling is transmitted via a Uu interface. 
     In one embodiment, the first signaling is transmitted through sidelink. 
     In one embodiment, the first signaling is carried by a baseband signal. 
     In one embodiment, the first signaling is carried by an RF signal. 
     In one embodiment, the first signaling is an RRC signaling. 
     In one embodiment, the first signaling is a higher-layer signaling. 
     In one embodiment, a DCI format adopted by the first signaling is format  3 . 
     In one embodiment, the first signaling is used to configure sidelink transmission. 
     In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meaning: the first signaling is used by the first node in the present disclosure to determine time-frequency resources occupied by the first signal. 
     In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meaning: the first signaling is used to directly indicate time-frequency resources occupied by the first signal. 
     In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meaning: the first signaling is used to indirectly indicate time-frequency resources occupied by the first signal. 
     In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meaning: the first signaling is used to explicitly indicate time-frequency resources occupied by the first signal. 
     In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meaning: the first signaling is used to implicitly indicate time-frequency resources occupied by the first signal. 
     In one embodiment, the first signaling is also used to determine a Modulation Coding Scheme (MCS) adopted by the first signal. 
     In one embodiment, the first signaling is also used to determine a HARQ process to which the first signal belongs. 
     In one embodiment, the above phrase of “the first signaling being used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling” includes the following meaning: the first signaling is used by the first node in the present disclosure to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling. 
     In one embodiment, the above phrase of “the first signaling being used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling” includes the following meaning: the first signaling is used to directly indicate a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling. 
     In one embodiment, the above phrase of “the first signaling being used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling” includes the following meaning: the first signaling is used to indirectly indicate a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling. 
     In one embodiment, the above phrase of “the first signaling being used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling” includes the following meaning: the first signaling is used to explicitly indicate a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling. 
     In one embodiment, the above phrase of “the first signaling being used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling” includes the following meaning: the first signaling is used to implicitly indicate a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling. 
     In one embodiment, the above phrase of “the first signaling being used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling” includes the following meaning: the first signaling is used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time of a latest multicarrier symbol occupied by the first signaling. 
     In one embodiment, the above phrase of “the first signaling being used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling” includes the following meaning: the first signaling is used to determine a length of a time interval between a start time of a slot to which the first multicarrier symbol belongs and an end time of a slot to which a latest multicarrier symbol occupied by the first signaling belongs. 
     Embodiment 8 
     Embodiment 8 illustrates a schematic diagram of a relation between a first multicarrier symbol and a second multicarrier symbol according to one embodiment of the present disclosure, as shown in  FIG. 8 . In  FIG. 8 , in each case, the horizontal axis represents time, the vertical axis represents frequency, the cross-line filled rectangle represents time-frequency resources occupied by a second signal, each dot-filled rectangle represents a multicarrier symbol in a target time-frequency resource set, and the slash-filled rectangle represents a second multicarrier symbol; in case A, a first multicarrier symbol is not earlier than a second multicarrier symbol; and in case B, a first multicarrier symbol is earlier than a second multicarrier symbol. 
     In embodiment 8, when the first multicarrier symbol in the present disclosure is earlier than the second multicarrier symbol in the present disclosure, the first node in the present disclosure may drop transmitting the second information, or the first node may ignore the first information, or the first node device may assume the target time-frequency resource set in the present disclosure invalid. 
     In one embodiment, the above phrase of “the first node may drop transmitting the second information” includes the following meaning: not excluding a possibility of the first node transmitting the second information. 
     In one embodiment, the above phrase of “the first node may drop transmitting the second information” includes the following meaning: the first node is allowed to drop transmitting the second information. 
     In one embodiment, the above phrase of “the first node may drop transmitting the second information” includes the following meaning: the first node is allowed to drop transmitting the second information, and whether the first node finally drops transmitting the second information is left to an implementation of the first node. 
     In one embodiment, the above phrase of “the first node may drop transmitting the second information” includes the following meaning: the first node is allowed to drop transmitting the second information, and whether the first node finally drops transmitting the second information is left to a capability of the first node. 
     In one embodiment, the above phrase of “the first node may drop transmitting the second information” includes the following meaning: the first node may not be able to provide valid the second information. 
     In one embodiment, the above phrase of “the first node may drop transmitting the second information” includes the following meaning: the first node may not be able to provide correct the second information. 
     In one embodiment, the above phrase of “the first node may drop transmitting the second information” includes the following meaning: a receiver of the second information cannot expect to receive valid the second information. 
     In one embodiment, when the first node drops transmitting the second information, the first node may use resources in the target time-frequency resource set to transmit information other than the second information. 
     In one embodiment, when the first node drops transmitting the second information, the first node may not use resources in the target time-frequency resource set to transmit any information. 
     In one embodiment, when the first node drops transmitting the second information, the first node may still use time-frequency resources in the target time-frequency resource set to transmit a PUCCH. 
     In one embodiment, when the first node drops transmitting the second information, the first node may still use time-frequency resources in the target time-frequency resource set to transmit a PUSCH. 
     In one embodiment, when the first node drops transmitting the second information, the first node may still use time-frequency resources in the target time-frequency resource set to transmit a radio signal. 
     In one embodiment, the above phrase of “the first node may ignore the first information” includes the following meaning: the first node may not follow an indication of the first information. 
     In one embodiment, the above phrase of “the first node may ignore the first information” includes the following meaning: the first node may assume that the first information is not correctly received. 
     In one embodiment, the above phrase of “the first node may ignore the first information” includes the following meaning: the first node may assume that the first information is not transmitted. 
     In one embodiment, the above phrase of “the first node may ignore the first information” includes the following meaning: the first node may assume the first node invalid. 
     In one embodiment, the above phrase of “the first node may ignore the first information” includes the following meaning: whether the first node finally ignores the first information is left to an implementation of the first node. 
     In one embodiment, the above phrase of “the first node may ignore the first information” includes the following meaning: whether the first node finally ignores the first information is left to a capability of the first node. 
     In one embodiment, the above phrase of “the first node may ignore the first information” includes the following meaning: a transmitter of the first information may not expect that the first node in the present disclosure follows an indication of the first information. 
     In one embodiment, the above phrase of “the first node may assume that the target time-frequency resource set is invalid” includes the following meaning: the first node may not use the target time-frequency resource set to transmit a signal. 
     In one embodiment, the above phrase of “the first node may assume that the target time-frequency resource set is invalid” includes the following meaning: the first node may assume that the target time-frequency resource set is not used to transmit the second information. 
     In one embodiment, the above phrase of “the first node may assume that the target time-frequency resource set is invalid” includes the following meaning: the first node may assume that the target time-frequency resource set can only be used to transmit information other than the second information. 
     In one embodiment, the above phrase of “the first node may assume that the target time-frequency resource set is invalid” includes the following meaning: the first node may assume that the target time-frequency resource set is not reserved for the second information. 
     In one embodiment, the above phrase of “the first node may assume that the target time-frequency resource set is invalid” includes the following meaning: whether the first node finally assumes the target time-frequency resource valid is left to an implementation of the first node. 
     In one embodiment, the above phrase of “the first node may assume that the target time-frequency resource set is invalid” includes the following meaning: whether the first node finally assumes the target time-frequency resource valid is left to a capability of the first node. 
     In one embodiment, the above phrase of “the first node may assume that the target time-frequency resource set is invalid” includes the following meaning: a transmitter of the first information does not expect that the first node uses resources in the target time-frequency resource set to transmit the second information. 
     Embodiment 9 
     Embodiment 9 illustrates a schematic diagram of a length of a switching time between a reception and a transmission of a first node according to one embodiment of the present disclosure, as shown in  FIG. 9 . In  FIG. 9 , the first column on the left represents types of lengths of switching time between a reception and a transmission of the first node, the second column on the left represents lengths of switching time in Frequency Range 1 (FR1), and the third column on the left represents lengths of switching time in FR2, and a value of lengths of all switching time is measured by Tc. 
     In embodiment 9, the reference delay in the present disclosure is not less than a first delay, and a length of a switching time between a reception and a transmission of the first node in the present disclosure is used to determine the first delay. 
     In one embodiment, the reference delay is equal to the first delay. 
     In one embodiment, the reference delay is greater than the first delay. 
     In one embodiment, the first delay is measured by s. 
     In one embodiment, the first delay is measured by ms. 
     In one embodiment, the first delay is equal to a time length of at least one OFDM symbol. 
     In one embodiment, the first delay is equal to a time length of at least one slot. 
     In one embodiment, the first delay is equal to a positive integral multiple of Tc, where Tc=1/(480000*4096) s. 
     In one embodiment, the first delay is represented by a number of OFDM symbol(s). 
     In one embodiment, the first delay is represented by a number of slot(s). 
     In one embodiment, the first delay is represented by a number of Tc(s), where Tc=1/(480000*4096) s. 
     In one embodiment, the first delay is equal to a time length of at least one OFDM symbol, and the OFDM symbol(s) corresponds(correspond) to an SCS of a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, the first delay is equal to a time length of at least one OFDM symbol, and the OFDM symbol(s) corresponds(correspond) to an SCS of a subcarrier in the second frequency-domain resource pool. 
     In one embodiment, the first delay is equal to a time length of a positive integral number of OFDM symbol(s) other than an earliest OFDM symbol in a slot. 
     In one embodiment, the first delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the first delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, the first delay is related to an FR to which frequency-domain resources comprised in the first frequency-domain resource pool belong. 
     In one embodiment, the first delay is related to an FR to which frequency-domain resources comprised in the second frequency-domain resource pool belong. 
     In one embodiment, the first delay is equal to 25600Tc, or the first delay is equal to 13792Tc, where Tc=1/(480000*4096) s. 
     In one embodiment, when an FR to which frequency-domain resources comprised in the first frequency-domain resource pool belong is FR1, the first delay is equal to 25600Tc; and when an FR to which frequency-domain resources comprised in the first frequency-domain resource pool belong is FR2, the first delay is equal to 13792Tc; where Tc=1/(480000*4096) s. 
     In one embodiment, the first delay is related to an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the first delay is related to an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, the first delay is related to a waveform adopted by a signal carrying the second information. 
     In one embodiment, the first delay is related to whether a signal carrying the second information adopts an OFDM waveform or a DFT-s-OFDM waveform. 
     In one embodiment, the first delay is related to whether transform precoding is adopted when a signal carrying the second information is generated. 
     In one embodiment, the above phrase of “a length of a switching time between a reception and a transmission of the first node being used to determine the first delay” includes the following meaning: a length of a switching time between a reception and a transmission of the first node is used by the first node in the present disclosure to determine the first delay. 
     In one embodiment, the above phrase of “a length of a switching time between a reception and a transmission of the first node being used to determine the first delay” includes the following meaning: a length of a switching time between a reception and a transmission of the first node is equal to the first delay. 
     In one embodiment, the above phrase of “a length of a switching time between a reception and a transmission of the first node being used to determine the first delay” includes the following meaning: the first delay is not less than a length of a switching time between a reception and a transmission of the first node. 
     In one embodiment, the above phrase of “a length of a switching time between a reception and a transmission of the first node being used to determine the first delay” includes the following meaning: a length of a switching time between a reception and a transmission of the first node determines the first delay according to a mapping relation. 
     In one embodiment, the above phrase of “a length of a switching time between a reception and a transmission of the first node being used to determine the first delay” includes the following meaning: a length of a switching time between a reception and a transmission of the first node determines the first delay according to a functional relation. 
     In one embodiment, the above phrase of “a length of a switching time between a reception and a transmission of the first node being used to determine the first delay” includes the following meaning: a sum of a length of a switching time between a reception and a transmission of the first node and a length of a first offset time is equal to the first delay, a length of the first offset time is fixed, or a length of the first offset time is pre-defined. 
     In one embodiment, “a length of a switching time between a reception and a transmission of the first node” refers to a length of a switching time from a reception to a transmission of the first node 
     In one embodiment, “a length of a switching time between a reception and a transmission of the first node” refers to a length of a switching time from a transmission to a reception of the first node 
     In one embodiment, a length of a switching time from a reception to a transmission of the first node is equal to a length of a switching time from a transmission to a reception of the first node. 
     In one embodiment, a transmission of the first node in sidelink is half-duplex. 
     In one embodiment, a transmission of the first node between sidelink and uplink is half-duplex. 
     In one embodiment, the first node does not support full-duplex. 
     In one embodiment, a band to which the first frequency-domain resource pool belongs is a TDD frequency band. 
     In one embodiment, a band to which the first frequency-domain resource pool belongs is an FDD frequency band. 
     In one embodiment, a band to which the second frequency-domain resource pool belongs is a TDD frequency band. 
     In one embodiment, a band to which the second frequency-domain resource pool belongs is an FDD frequency band. 
     Embodiment 10 
     Embodiment 10 illustrates a schematic diagram of a second delay according to one embodiment of the present disclosure, as shown in  FIG. 10 . In  FIG. 10 , when a first frequency-domain resource pool is different from a second frequency-domain resource pool, the first column on the left represents SCSs of subcarriers comprised in a first time-frequency resource pool in frequency domain, the second column on the left represents SCSs of subcarriers comprised in the second time-frequency resource pool in frequency domain, the third column on the left represents time lengths of slots of different SCSs, and the fourth column on the left represents second delays measured by slot. 
     In embodiment 10, the reference delay in the present disclosure is not less than a second delay; when the first frequency-domain resource pool in the present disclosure is the same as the second frequency-domain resource pool in the present disclosure, the second delay is equal to 0; when the first frequency-domain resource pool in the present disclosure is different from the second frequency-domain resource pool in the present disclosure, the second delay is greater than 0, and one of an SCS of a subcarrier comprised in the first time-frequency resource pool in the present disclosure in frequency domain and an SCS of a subcarrier comprised in the second time-frequency resource pool in the present disclosure in frequency domain is used to determine the second delay. 
     In one embodiment, the reference delay is equal to the second delay. 
     In one embodiment, the reference delay is greater than the second delay. 
     In one embodiment, the second delay is measured by s. 
     In one embodiment, the second delay is measured by ms. 
     In one embodiment, the second delay is equal to a time length of at least one OFDM symbol. 
     In one embodiment, the second delay is equal to a time length of at least one slot. 
     In one embodiment, the second delay is equal to a positive integral multiple of Tc, where Tc=1/(480000*4096) s. 
     In one embodiment, the second delay is represented by a number of OFDM symbol(s). 
     In one embodiment, the second delay is represented by a number of slot(s). 
     In one embodiment, the second delay is represented by a number of Tc(s), where Tc=1/(480000*4096) s. 
     In one embodiment, the second delay is equal to a time length of at least one OFDM symbol, and the OFDM symbol(s) corresponds(correspond) to an SCS of a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, the second delay is equal to a time length of at least one OFDM symbol, and the OFDM symbol(s) corresponds(correspond) to an SCS of a subcarrier in the second frequency-domain resource pool. 
     In one embodiment, the second delay is equal to a time length of a positive integral number of OFDM symbol(s) other than an earliest OFDM symbol in a slot. 
     In one embodiment, the second delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the second delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, the reference delay is not less than the second delay, and a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine the second delay. 
     In one embodiment, the second delay is equal to an interruption length. 
     In one embodiment, whether the first frequency-domain resource pool and the second frequency-domain resource pool are the same is judged according to whether an SLIV of the first frequency-domain resource pool is the same as an SLIV of the second frequency-domain resource pool. 
     In one embodiment, whether the first frequency-domain resource pool is the same as the second frequency-domain resource pool is judged according to whether a locationAndBandwidth parameter of the first frequency-domain resource pool is the same as a locationAndBandwidth parameter of the second frequency-domain resource pool. 
     In one embodiment, whether the first frequency-domain resource pool is the same as the second frequency-domain resource pool is judged according to whether an SCS of a subcarrier comprised in the first frequency-domain resource pool is the same as an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, whether the first frequency-domain resource pool is the same as the second frequency-domain resource pool is judged according to whether an SLIV of the first frequency-domain resource pool is the same as an SLIV of the second frequency-domain resource pool and whether an SCS of a subcarrier comprised in the first frequency-domain resource pool is the same as an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, when an SCS of a subcarrier comprised in the first frequency-domain resource pool is the same as an SCS of a subcarrier comprised in the second frequency-domain resource pool, and when a frequency-domain starting location and a bandwidth of the first frequency-domain resource pool are respectively the same as a frequency-domain starting location and a bandwidth of the second frequency-domain resource pool, the first frequency-domain resource pool is the same as the second frequency-domain resource pool; otherwise, the first frequency-domain resource pool is different from the second frequency-domain resource pool. 
     In one embodiment, “the first frequency-domain resource pool being the same as the second frequency-domain resource pool” refers to: frequency-domain resources comprised in the first frequency-domain resource pool are the same as frequency-domain resources comprised in the second frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool is equal to an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, the above phrase of “one of an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain or an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain being used to determine the second delay” includes the following meaning: M SCSs respectively correspond to M candidate delays, and any two of the M SCSs are not equal, M being a positive integer greater than 1; an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain corresponds to a first candidate delay, and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain corresponds to a second candidate delay, the first candidate delay is one of the M candidate delays, the second candidate delay is one of the M candidate delays, an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain is one of the M SCSs, and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is one of the M SCSs; the second delay is equal to a greater one between the first candidate delay and the second candidate delay. 
     In one embodiment, the above phrase of “one of an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain or an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain being used to determine the second delay” includes the following meaning: M SCSs respectively correspond to M candidate delays, and any two of the M SCSs are not equal, M being a positive integer greater than 1; when an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain is not equal to an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain, a target SCS is equal to a greater one between an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain; when an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain is equal to an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain, a target SCS is equal to an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain; the target SCS is equal to one of the M SCSs, and the second delay is equal to one of the M candidate delays corresponding to the target SCS. 
     In one embodiment, the above phrase of “one of an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain or an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain being used to determine the second delay” includes the following meaning: one of an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain or an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is used by the first node in the present disclosure to determine the second delay. 
     In one embodiment, the above phrase of “one of an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain or an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain being used to determine the second delay” includes the following meaning: a greater one between an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is used to determine the second delay. 
     In one embodiment, when the second delay is greater than 0, the second delay is equal to one of a time length of one slot corresponding to 15 kHz SCS, a time length of one slot corresponding to 30 kHz SCS, a time length of three slots corresponding to 60 kHz SCS, and a time length of five slots corresponding to 120 kHz SCS. 
     In one embodiment, the second delay is related to a waveform adopted by a signal carrying the second information. 
     In one embodiment, the second delay is related to whether a signal carrying the second information adopts an OFDM waveform or a DFT-s-OFDM waveform. 
     In one embodiment, the second delay is related to whether transform precoding is adopted when a signal carrying the second information is generated. 
     Embodiment 11 
     Embodiment 11 illustrates a schematic diagram of a first characteristic delay and a second characteristic delay according to one embodiment of the present disclosure, as shown in  FIG. 11 . In  FIG. 11 , the first column on the left represents first SCSs, the second column on the left represents first characteristic delays respectively corresponding to different first SCSs, the third column on the left represents second SCSs, and the fourth column on the left represents second characteristic delays respectively corresponding different second SCSs. 
     In embodiment 11, the reference delay in the present disclosure is not less than a third delay, an SCS of a subcarrier comprised in the first time-frequency resource pool in the present disclosure in frequency domain is equal to a first SCS, and an SCS of a subcarrier comprised in the second time-frequency resource pool in the present disclosure in frequency domain is equal to a second SCS, the first SCS is used to determine a first characteristic delay, the second SCS is used to determine a second characteristic delay, and one of the first characteristic delay or the second characteristic delay is used to determine the third delay. 
     In one embodiment, the reference delay is equal to the third delay. 
     In one embodiment, the reference delay is greater than the third delay. 
     In one embodiment, the third delay is related to a processing capability of the first node. 
     In one embodiment, the third delay is linearly related to a processing delay of the first node. 
     In one embodiment, the third delay is measured by s. 
     In one embodiment, the third delay is measured by ms. 
     In one embodiment, the third delay is equal to a time length of at least one OFDM symbol. 
     In one embodiment, the third delay is equal to a time length of at least one slot. 
     In one embodiment, the third delay is equal to a positive integral multiple of Tc, where Tc=1/(480000*4096) s. 
     In one embodiment, the third delay is represented by a number of OFDM symbol(s). 
     In one embodiment, the third delay is represented by a number of slot(s). 
     In one embodiment, the third delay is represented through a number of Tc(s), where Tc=1/(480000*4096) s. 
     In one embodiment, the third delay is equal to a time length of at least one OFDM symbol, and the OFDM symbol(s) corresponds(correspond) to an SCS of a subcarrier in the first frequency-domain resource pool. 
     In one embodiment, the third delay is equal to a time length of at least one OFDM symbol, and the OFDM symbol(s) corresponds(correspond) to an SCS of a subcarrier in the second frequency-domain resource pool. 
     In one embodiment, the third delay is equal to a time length of a positive integral number of OFDM symbol(s) other than an earliest OFDM symbol in a slot. 
     In one embodiment, the third delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier comprised in the first frequency-domain resource pool. 
     In one embodiment, the third delay is equal to a time length of at least one slot corresponding to an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     In one embodiment, the third delay is related to a waveform adopted by a signal carrying the second information. 
     In one embodiment, the third delay is related to whether a signal carrying the second information adopts an OFDM waveform or a DFT-s-OFDM waveform. 
     In one embodiment, the third delay is related to whether transform precoding is adopted when a signal carrying the second information is generated. 
     In one embodiment, the first SCS is equal to one of 15 kHz, 30 kHz, 60 kHz, 120 kHz or 240 kHz. 
     In one embodiment, the second SCS is equal to one of 15 kHz, 30 kHz, 60 kHz, 120 kHz or 240 kHz. 
     In one embodiment, the above phrase of “the first SCS being used to determine a first characteristic delay” includes the following meaning: the first SCS is used by the first node in the present disclosure to determine the first characteristic delay. 
     In one embodiment, the above phrase of “the second SCS being used to determine a second characteristic delay” includes the following meaning: the second SCS is used by the first node in the present disclosure to determine the second characteristic delay. 
     In one embodiment, the above phrase of “the first SCS being used to determine a first characteristic delay” includes the following meaning: the first SCS is used by the second node in the present disclosure to determine the first characteristic delay. 
     In one embodiment, the above phrase of “the second SCS being used to determine a second characteristic delay” includes the following meaning: the second SCS is used by the second node in the present disclosure to determine the second characteristic delay. 
     In one embodiment, the above phrase of “the first SCS being used to determine a first characteristic delay” includes the following meaning: P SCSs respectively correspond to P characteristic delays, P is a positive integer greater than 1, the first SCS is equal to one of the P SCSs, the first characteristic delay is equal to one of the P characteristic delays corresponding to the first SCS, and the P characteristic delays are pre-defined. 
     In one embodiment, the above phrase of “the first SCS being used to determine a first characteristic delay” includes the following meaning: P SCSs respectively correspond to P characteristic delays, P is a positive integer greater than 1, the first SCS is equal to one of the P SCSs, the first characteristic delay is equal to one of the P characteristic delays corresponding to the first SCS, and the P characteristic delays are configurable. 
     In one embodiment, the above phrase of “the second SCS being used to determine a second characteristic delay” includes the following meaning: P SCSs respectively correspond to P characteristic delays, P is a positive integer greater than 1, the second SCS is equal to one of the P SCSs, the second characteristic delay is equal to one of the P characteristic delays corresponding to the second SCS, and the P characteristic delays are pre-defined. 
     In one embodiment, the above phrase of “the second SCS being used to determine a second characteristic delay” includes the following meaning: P SCSs respectively correspond to P characteristic delays, P is a positive integer greater than 1, the second SCS is equal to one of the P SCSs, the second characteristic delay is equal to one of the P characteristic delays corresponding to the second SCS, and the P characteristic delays are configurable. 
     In one embodiment, the above phrase of “one of the first characteristic delay or the second characteristic delay being used to determine the third delay” includes the following meaning: one of the first characteristic delay or the second characteristic delay is used by the first node in the present disclosure to determine the third delay. 
     In one embodiment, the above phrase of “one of the first characteristic delay or the second characteristic delay being used to determine the third delay” includes the following meaning: a greater one between the first characteristic delay and the second characteristic delay is used to determine the third delay. 
     In one embodiment, the above phrase of “one of the first characteristic delay or the second characteristic delay being used to determine the third delay” includes the following meaning: the third delay is equal to a greater one between the first characteristic delay and the second characteristic delay. 
     In one embodiment, the above phrase of “one of the first characteristic delay or the second characteristic delay being used to determine the third delay” includes the following meaning: the third delay is linearly associated with one of the first characteristic delay or the second characteristic delay. 
     In one embodiment, the above phrase of “one of the first characteristic delay or the second characteristic delay being used to determine the third delay” includes the following meaning: a characteristic delay that can obtain a maximum the reference delay between the first characteristic delay and the second characteristic delay is used to determine the third delay. 
     In one embodiment, the above phrase of “one of the first characteristic delay or the second characteristic delay being used to determine the third delay” includes the following meaning: the third delay is linearly associated with a characteristic delay that can obtain a maximum the reference delay between the first characteristic delay and the second characteristic delay. 
     In one embodiment, the third delay and the second delay in the present disclosure are calculated separately. 
     In one embodiment, the reference delay is equal to a greater one among the first delay in the present disclosure, the second delay in the present disclosure and the third delay in the present disclosure. 
     In one embodiment, the reference delay is equal to a greater one between the first delay in the present disclosure and the third delay in the present disclosure. 
     In one embodiment, the reference delay is equal to a greater one between the first delay in the present disclosure and the second delay in the present disclosure. 
     In one embodiment, the reference delay is equal to a greater one between the second delay in the present disclosure and the third delay in the present disclosure. 
     In one embodiment, the reference delay is calculated by the following formula: 
         T   PSFCH-PUCCH =max( t   4,1   ,t   4,2   ,t   4,3 ) 
     herein, T PSFCH-PUCCH  represents the reference delay, t 4,1  represents the first delay in the present disclosure, t 4,2  represents the second delay in the present disclosure, and t 4,3  represents the third delay in the present disclosure. 
     In one embodiment, the reference delay is calculated by the following formula: 
         T   PSFCH-PUCCH =max( t   4,1   ,t   4,2   ,t   4,3 ), 
     herein, T PSFCH-PUCCH  represents the reference delay, t 4,1  represents the first delay in the present disclosure, t 4,2  represents the second delay in the present disclosure, t 4,3  represents the third delay in the present disclosure, and the above phrase of “one of the first characteristic delay or the second characteristic delay being used to determine the third delay” is implemented through the following formula: 
     
       
         
           
             
               
                 t 
                 
                   4 
                   , 
                   3 
                 
               
               = 
               
                 
                   ( 
                   
                     
                       N 
                       
                         4 
                         , 
                         μ 
                       
                     
                     + 
                     
                       d 
                       
                         4 
                         , 
                         1 
                       
                     
                   
                   ) 
                 
                 ⁢ 
                 
                   
                     ( 
                     
                       
                         2 
                         ⁢ 
                         0 
                         ⁢ 
                         4 
                         ⁢ 
                         8 
                       
                       + 
                       
                         1 
                         ⁢ 
                         4 
                         ⁢ 
                         4 
                       
                     
                     ) 
                   
                   · 
                   K 
                 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 
                   
                     2 
                     
                       - 
                       μ 
                     
                   
                   · 
                   
                     T 
                     c 
                   
                 
               
             
             , 
             
               μ 
               = 
               
                 arg 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 
                   
                     max 
                     
                       μϵ 
                       ⁢ 
                       
                         { 
                         
                           
                             μ 
                             1 
                           
                           , 
                           
                             μ 
                             2 
                           
                         
                         } 
                       
                     
                   
                   ⁢ 
                   
                     ( 
                     
                       T 
                       
                         PSFCH 
                         - 
                         PUCCH 
                       
                     
                     ) 
                   
                 
               
             
           
         
       
     
     herein, N 4,μ     1    represents the first characteristic delay, N 4,μ     2    represents the second characteristic delay, d 4,1  is a configurable value, κ=64, μ represents an index of an SCS, T c =1/(480000*4096) s, μ 1  represents an index of the first SCS, and μ 2  represents an index of the second SCS. 
     In one embodiment, the reference delay is calculated by the following formula: 
         T   PSFCH-PUCCH =max( t   4,2   ,t   4,3 ), 
     herein, T PSFCH-PUCCH  represents the reference delay, t 4,2  represents the second delay in the present disclosure, t 4,3  represents the third delay in the present disclosure, and the above phrase of “one of the first characteristic delay or the second characteristic delay being used to determine the third delay” is implemented through the following formula: 
     
       
         
           
             
               
                 t 
                 
                   4 
                   , 
                   3 
                 
               
               = 
               
                 
                   ( 
                   
                     
                       N 
                       
                         4 
                         , 
                         μ 
                       
                     
                     + 
                     
                       d 
                       
                         4 
                         , 
                         1 
                       
                     
                   
                   ) 
                 
                 ⁢ 
                 
                   
                     ( 
                     
                       
                         2 
                         ⁢ 
                         0 
                         ⁢ 
                         4 
                         ⁢ 
                         8 
                       
                       + 
                       
                         1 
                         ⁢ 
                         4 
                         ⁢ 
                         4 
                       
                     
                     ) 
                   
                   · 
                   K 
                 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 
                   
                     2 
                     
                       - 
                       μ 
                     
                   
                   · 
                   
                     T 
                     c 
                   
                 
               
             
             , 
             
               μ 
               = 
               
                 arg 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 
                   
                     max 
                     
                       μϵ 
                       ⁢ 
                       
                         { 
                         
                           
                             μ 
                             1 
                           
                           , 
                           
                             μ 
                             2 
                           
                         
                         } 
                       
                     
                   
                   ⁢ 
                   
                     ( 
                     
                       T 
                       
                         PSFCH 
                         - 
                         PUCCH 
                       
                     
                     ) 
                   
                 
               
             
           
         
       
     
     herein, N 4,μ     1    represents the first characteristic delay, N 4,μ     2    represents the second characteristic delay, d 4,1  is a configurable value, κ=64, μ represents an index of an SCS, T c =1/(480000*4096) s, μ 1  represents an index of the first SCS, and μ 2  represents an index of the second SCS. 
     In one embodiment, the reference delay is calculated by the following formula: 
         T   PSFCH-PUCCH =max( t   4,1   ,t   4,2   ,t   4,3 ), 
     herein, T PSFCH-PUCCH  represents the reference delay, t 4,1  represents the first delay in the present disclosure, t 4,2  represents the second delay in the present disclosure, t 4,3  represents the third delay in the present disclosure, and the above phrase of “one of the first characteristic delay or the second characteristic delay being used to determine the third delay” is implemented through the following formula: 
     
       
         
           
             
               
                 t 
                 
                   4 
                   , 
                   3 
                 
               
               = 
               
                 
                   ( 
                   
                     
                       N 
                       
                         4 
                         , 
                         μ 
                       
                     
                     + 
                     
                       d 
                       
                         4 
                         , 
                         1 
                       
                     
                   
                   ) 
                 
                 ⁢ 
                 
                   
                     ( 
                     
                       
                         2 
                         ⁢ 
                         0 
                         ⁢ 
                         4 
                         ⁢ 
                         8 
                       
                       + 
                       
                         1 
                         ⁢ 
                         4 
                         ⁢ 
                         4 
                       
                     
                     ) 
                   
                   · 
                   K 
                 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 
                   
                     2 
                     
                       - 
                       μ 
                     
                   
                   · 
                   
                     T 
                     c 
                   
                 
               
             
             , 
             
               μ 
               = 
               
                 arg 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 
                   
                     max 
                     
                       μϵ 
                       ⁢ 
                       
                         { 
                         
                           
                             μ 
                             1 
                           
                           , 
                           
                             μ 
                             2 
                           
                         
                         } 
                       
                     
                   
                   ⁢ 
                   
                     ( 
                     
                       T 
                       
                         PSFCH 
                         - 
                         PUCCH 
                       
                     
                     ) 
                   
                 
               
             
           
         
       
     
     herein, N 4,μ     1   (2048+144)·κ2 −μ ·T c  represents the first characteristic delay, N 4,μ     2   (2048+144)·κ2 −μ ·T c  represents the second characteristic delay, d 4,1  is a configurable value, κ=64, μ represents an index of an SCS, T c =1/(480000*4096) s, μ 1  represents an index of the first SCS, and μ 2  represents an index of the second SCS. 
     Embodiment 12 
     Embodiment 12 illustrates a schematic diagram of an information format adopted by physical layer information carried by a second signal according to one embodiment of the present disclosure, as shown in  FIG. 12 . In  FIG. 12 , the first column on the left represents an index of an information format adopted by physical layer information carried by a second signal, the second column on the left represents a number of multicarrier symbol(s) occupied a second signal, the third column on the left represents a number of bit(s) of physical layer information carried by a second signal, and the fourth column on the left represents a channel coding scheme adopted by a second signal. 
     In embodiment, the second signal in the present disclosure carries physical layer information, physical layer information carried by the second signal in the present disclosure is used to determine whether the first signal in the present disclosure is correctly received, and an information format adopted by physical layer information carried by the second signal in the present disclosure is used to determine the third delay in the present disclosure. 
     In one embodiment, physical layer information carried by the second signal comprises HARQ-ACK information. 
     In one embodiment, physical layer information carried by the second signal comprises SFI. 
     In one embodiment, physical layer information carried by the second signal comprises CSI information. 
     In one embodiment, physical layer information carried by the second signal comprises L1-RSRP information. 
     In one embodiment, the above phrase of “the second signal being used to determine whether the first signal is correctly received” includes the following meaning: physical layer information carried by the second signal is used by a first node in the present disclosure to determine whether the first signal is correctly received. 
     In one embodiment, the above phrase of “the second signal being used to determine whether the first signal is correctly received” includes the following meaning: physical layer information carried by the second signal is used to determine that the first signal is not correctly received. 
     In one embodiment, the above phrase of “the second signal being used to determine whether the first signal is correctly received” includes the following meaning: physical layer information carried by the second signal is used to determine whether the first signal is correctly decoded. 
     In one embodiment, the above phrase of “the second signal being used to determine whether the first signal is correctly received” includes the following meaning: physical layer information carried by the second signal is used to determine whether a CRC check is passed when the first signal is decoding. 
     In one embodiment, “an information format adopted by physical layer information carried by the second signal” includes a number of bit(s) comprised in physical layer information carried by the second signal. 
     In one embodiment, “an information format adopted by physical layer information carried by the second signal” includes a type of channel coding adopted by physical layer information carried by the second signal when generating the second signal. 
     In one embodiment, “an information format adopted by physical layer information carried by the second signal” includes whether physical layer information carried by the second signal adopts a sequence to generate the second signal. 
     In one embodiment, “an information format adopted by physical layer information carried by the second signal” includes a format of an SFI carried by the second signal. 
     In one embodiment, an information format and a PUCCH format adopted by physical layer information carried by the second signal adopts a same division method. 
     In one embodiment, the above phrase of “an information format adopted by physical layer information carried by the second signal being used to determine the third delay” includes the following meaning: an information format adopted by physical layer information carried by the second signal is used by the first node in the present disclosure to determine the third delay. 
     In one embodiment, the above phrase of “an information format adopted by physical layer information carried by the second signal being used to determine the third delay” includes the following meaning: an information format adopted by physical layer information carried by the second signal is used to determine the third delay according to a corresponding relation. 
     In one embodiment, the above phrase of “an information format adopted by physical layer information carried by the second signal being used to determine the third delay” includes the following meaning: an information format adopted by physical layer information carried by the second signal is used to determine a target delay offset according to a corresponding relation, and the target delay is used to determine the third delay. 
     In one embodiment, the above phrase of “an information format adopted by physical layer information carried by the second signal being used to determine the third delay” is implemented through the following formula: 
     
       
         
           
             
               
                 t 
                 
                   4 
                   , 
                   3 
                 
               
               = 
               
                 
                   ( 
                   
                     
                       N 
                       
                         4 
                         , 
                         μ 
                       
                     
                     + 
                     
                       d 
                       
                         4 
                         , 
                         1 
                       
                     
                   
                   ) 
                 
                 ⁢ 
                 
                   
                     ( 
                     
                       
                         2 
                         ⁢ 
                         0 
                         ⁢ 
                         4 
                         ⁢ 
                         8 
                       
                       + 
                       
                         1 
                         ⁢ 
                         4 
                         ⁢ 
                         4 
                       
                     
                     ) 
                   
                   · 
                   K 
                 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 
                   
                     2 
                     
                       - 
                       μ 
                     
                   
                   · 
                   
                     T 
                     c 
                   
                 
               
             
             , 
             
               μ 
               = 
               
                 arg 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 
                   
                     max 
                     
                       μϵ 
                       ⁢ 
                       
                         { 
                         
                           
                             μ 
                             1 
                           
                           , 
                           
                             μ 
                             2 
                           
                         
                         } 
                       
                     
                   
                   ⁢ 
                   
                     ( 
                     
                       T 
                       
                         PSFCH 
                         - 
                         PUCCH 
                       
                     
                     ) 
                   
                 
               
             
           
         
       
     
     herein, t 4,3  represents the third delay, N 4,μ     1    represents the first characteristic delay in the present disclosure, N 4,μ     2   , represents the second characteristic delay in the present disclosure, d u  represents a target delay offset, and an information adopted by physical layer information carried by the second signal is used to determine a target delay offset according to a corresponding relation, κ=64, μ represents an index of an SCS, T c =1/(480000*4096) s, μ 1  represents an index of the first SCS in the present disclosure, and μ 2  represents an index of the second SCS in the present disclosure. 
     In one embodiment, an information format adopted by physical layer information carried by the second signal is used to determine a target delay offset according to a corresponding relation, the target delay is used to determine the third delay, and the target delay offset is also related to a waveform adopted by a signal (or channel) carrying the second information. 
     In one embodiment, an information format adopted by physical layer information carried by the second signal is used to determine a target delay offset according to a corresponding relation, the target delay is used to determine the third delay, and the target delay offset is also related to an OFDM waveform or a DFT-s-ofdm waveform adopted by a signal (or channel) carrying the second information. 
     Embodiment 13 
     Embodiment 13 illustrates a structure diagram of a processing device in a first node of an embodiment, as shown in  FIG. 13 . In  FIG. 13 , a processing device  1300  of a first node comprises a first receiver  1301 , a first transmitter  1302 , a second receiver  1303  and a second transmitter  1304 . The first receiver  1301  comprises the transmitter/receiver  456  (including the antenna  460 ), the receiving processor  452  and the controller/processor  490  in  FIG. 4  of the present disclosure; or the first receiver  1301  comprises the transmitter/receiver  556  (including the antenna  560 ), the receiving processor  552  and the controller/processor  590  in  FIG. 5  of the present disclosure; the first transmitter  1302  comprises the transmitter/receiver  456  (including the antenna  460 ), the transmitting processor  455  and the controller/processor  490  in  FIG. 4  of the present disclosure; or the first transmitter  1302  comprises the transmitter/receiver  556  (including the antenna  560 ), the transmitting processor  555  and the controller/processor  590  in  FIG. 5  of the present disclosure; the second receiver  1303  comprises the transmitter/receiver  456  (including the antenna  460 ) and the receiving processor  452  in  FIG. 4  in the present disclosure; or the second receiver  1303  comprises the transmitter/receiver  556  (including the antenna  560 ) and the receiving processor  552  in  FIG. 5  in the present disclosure; the second transmitter  1304  comprises the transmitter/receiver  456  (including the antenna  460 ), the transmitting processor  455  and the controller/processor  490  in  FIG. 4  of the present disclosure; or the second transmitter  1304  comprises the transmitter/receiver  556  (including the antenna  560 ), the transmitting processor  555  and the controller/processor  590  in  FIG. 5  of the present disclosure; 
     In embodiment 13, the first receiver  1301  receives first information, the first information is used to determine a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain is a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belong to a first frequency-domain resource pool; the first transmitter  1302  transmits a first signal, frequency-domain resources occupied by the first signal belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; the second receiver  1303  receives a second signal, a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; the second transmitter  1304 , when the first multicarrier symbol is not earlier than the second multicarrier symbol, transmits second information; when the second information is transmitted, the target time-frequency resource set is used for a transmission of the second information; time-frequency resources occupied by the first signal are used to determine radio resources occupied by the second signal; information carried by the second signal is used to determine the second information, and a transmitter of the first information is different from a transmitter of the second signal. 
     In one embodiment, when the first multicarrier symbol is earlier than the second multicarrier symbol, the first node may drop transmitting the second information, or the first node may ignore the first information, or the first node device may assume the target time-frequency resource set invalid. 
     In one embodiment, the reference delay is not less than a first delay, and a length of a switching time between a reception and a transmission of the first node is used to determine the first delay. 
     In one embodiment, the reference delay is not less than a second delay; when the first frequency-domain resource pool is the same as the second frequency-domain resource pool, the second delay is equal to 0; when the first frequency-domain resource pool is different from the second frequency-domain resource pool, the second delay is greater than 0, and one of an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain or an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is used to determine the second delay. 
     In one embodiment, the reference delay is not less than a third delay, an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain is equal to a first SCS, and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is equal to a second SCS, the first SCS is used to determine a first characteristic delay, the second SCS is used to determine a second characteristic delay, and one of the first characteristic delay or the second characteristic delay is used to determine the third delay. 
     In one embodiment, the reference delay is not less than a third delay, an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain is equal to a first SCS, and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is equal to a second SCS, the first SCS is used to determine a first characteristic delay, the second SCS is used to determine a second characteristic delay, and one of the first characteristic delay or the second characteristic delay is used to determine the third delay; the second signal carries physical layer information, the physical layer information carried by the second signal is used to determine whether the first signal is correctly received, and an information format adopted by the physical layer information carried by the second signal is used to determine the third delay. 
     In one embodiment, the first receiver  1301  receives a first signaling; herein, the first signaling is used to determine time-frequency resources occupied by the first signal, the first signaling is used to determine a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling. 
     In one embodiment, the first receiver  1301  receives the third information and the fourth information; herein, the third information is used to determine the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool, and the fourth information is used to determine the second frequency-domain resource pool and an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     Embodiment 14 
     Embodiment 14 illustrates a structure block diagram of a processing device in a second node according to one embodiment of the present disclosure, as shown in  FIG. 14 . In  FIG. 14 , a processing device in a second node  1400  comprises a third transmitter  1401  and a third receiver  1402 . The third transmitter  1401  comprises the transmitter/receiver  416  (including the antenna  460 ), the transmitting processor  415  and the controller/processor  440  in  FIG. 4  of the present disclosure; and the third receiver  1402  comprises the transmitter/receiver  416  (including the antenna  420 ), the receiving processor  412  and the controller/processor  440  in  FIG. 4  of the present disclosure. 
     In embodiment 14, the third transmitter  1401  transmits first information and a first signaling, the first information is used to indicate a target time-frequency resource set, an earliest multicarrier symbol comprised in the target time-frequency resource set in time domain is a first multicarrier symbol, frequency-domain resources comprised in the target time-frequency resource set belong to a first frequency-domain resource pool; the third receiver  1402  receives second information; herein, the first signaling is used to indicate time-frequency resources occupied by a first signal, frequency-domain resources occupied by the first signal belong to a second frequency-domain resource pool, a frequency-domain relation between the first frequency-domain resource pool and the second frequency-domain resource pool is used to determine a reference delay; time-frequency resources occupied by the first signal are used to indicate radio resources occupied by a second signal; a length of a time interval between a start time of a second multicarrier symbol and an end time for receiving the second signal is equal to the reference delay, the start time of the second multicarrier symbol is not earlier than the end time for receiving the second signal; the target time-frequency resource set is used for a transmission of the second information; information carried by the second signal is used to determine the second information, and a transmitter of the second signal is a node other than the second node; the first multicarrier symbol is not earlier than the second multicarrier symbol. 
     In one embodiment, the reference delay is not less than a first delay, and a length of a switching time between a reception and a transmission of a transmitter of the second information is used to determine the first delay. 
     In one embodiment, the reference delay is not less than a second delay; when the first frequency-domain resource pool is the same as the second frequency-domain resource pool, the second delay is equal to 0; when the first frequency-domain resource pool is different from the second frequency-domain resource pool, the second delay is greater than 0, and one of an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain or an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is used to determine the second delay. 
     In one embodiment, the reference delay is not less than a third delay, an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain is equal to a first SCS, and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is equal to a second SCS, the first SCS is used to determine a first characteristic delay, the second SCS is used to determine a second characteristic delay, and one of the first characteristic delay or the second characteristic delay is used to determine the third delay. 
     In one embodiment, the reference delay is not less than a third delay, an SCS of a subcarrier comprised in the first time-frequency resource pool in frequency domain is equal to a first SCS, and an SCS of a subcarrier comprised in the second time-frequency resource pool in frequency domain is equal to a second SCS, the first SCS is used to determine a first characteristic delay, the second SCS is used to determine a second characteristic delay, and one of the first characteristic delay or the second characteristic delay is used to determine the third delay; the second signal carries physical layer information, the physical layer information carried by the second signal is used to determine whether the first signal is correctly received, and an information format adopted by the physical layer information carried by the second signal is used to determine the third delay. 
     In one embodiment, the first signaling is used to indicate a length of a time interval between a start time of the first multicarrier symbol and an end time for receiving the first signaling. 
     In one embodiment, the third transmitter  1401  transmits third information and fourth information; herein, the third information is used to indicate the first frequency-domain resource pool and an SCS of a subcarrier comprised in the first frequency-domain resource pool, and the fourth information is used to indicate the second frequency-domain resource pool and an SCS of a subcarrier comprised in the second frequency-domain resource pool. 
     The ordinary skill in the art may understand that all or part of steps in the above method may be implemented by instructing related hardware through a program. The program may be stored in a computer readable storage medium, for example Read-Only Memory (ROM), hard disk or compact disc, etc. Optionally, all or part of steps in the above embodiments also may be implemented by one or more integrated circuits. Correspondingly, each module unit in the above embodiment may be realized in the form of hardware, or in the form of software function modules. The first node or the second node in the present disclosure includes but is not limited to mobile phones, tablet computers, notebooks, network cards, low-consumption equipment, enhanced MTC (eMTC) terminals, NB-IOT terminals, vehicle-mounted communication equipment, aircrafts, diminutive airplanes, unmanned aerial vehicles, telecontrolled aircrafts and other wireless communication devices. The base station or network side equipment in the present disclosure includes but is not limited to macro-cellular base stations, micro-cellular base stations, home base stations, relay base station, eNB, gNB, Transmitter Receiver Point (TRP), relay satellites, satellite base stations, space base stations and other radio communication equipment. 
     The above are merely the preferred embodiments of the present disclosure and are not intended to limit the scope of protection of the present disclosure. Any modification, equivalent substitute and improvement made within the spirit and principle of the present disclosure are intended to be included within the scope of protection of the present disclosure.