Signal transmission method, apparatus, and storage medium

Abstract

Provided are a signal transmission method, an apparatus, and a storage medium. The method comprises: sending a first command signal; and on the basis of K transmission resources, receiving a first signal in response to the first command signal, K being a positive integer.

Description

Signal transmission methods, devices and storage media

[0001] This disclosure claims priority to Chinese patent application No. 202510108768.9, filed on January 21, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a signal transmission method, apparatus and storage medium. Background Technology

[0003] In passive IoT communication technologies, readers and devices typically communicate in a question-and-answer manner. For example, after the reader sends a trigger signal to the device, the device sends a response signal back to the reader. Due to the simple structure and low processing power of devices, a certain time interval needs to be reserved between adjacent signals during signal transmission and reception for signal processing, transmission / reception switching, and other operations.

[0004] In communication involving multiple devices, the reader's signal transmission and reception processes with each device are performed independently and sequentially. The process proceeds only after one device's signal transmission and reception is completed, with time intervals required between signals. This results in low transmission efficiency and long processing time. To improve communication efficiency, a method can be considered to schedule multiple uplink signals using a single downlink signal, enabling the uplink signals from multiple devices to be transmitted using time division multiplexing (TDM), frequency division multiplexing (FDM), or code division multiplexing (CDM).

[0005] However, in one-to-many communication based on the aforementioned TDM, FDM, or CDM, the timing relationship between signal transmission and reception, and how the device determines the signal transmission and reception times, require further research. Summary of the Invention

[0006] On the one hand, a signal transmission method is provided, applied to a first node, the method comprising:

[0007] Send the first command signal;

[0008] A first signal in response to a first command signal is received based on K transmission resources, where K is a positive integer.

[0009] On the other hand, a signal transmission method is provided for application to a second node, the method comprising:

[0010] Receive the first command signal;

[0011] Based on the transmission resource with sequence number h among the K transmission resources, a first signal in response to the first command signal is sent, where K is a positive integer and h is a non-negative integer less than or equal to K-1.

[0012] On another front, a signal transmission device is provided for use at a first node, the device comprising:

[0013] The first communication module is used to send the first command signal;

[0014] The second communication module is used to receive a first signal in response to the first command signal based on K transmission resources, where K is a positive integer.

[0015] On another front, a signal transmission device is provided for use in a second node, the device comprising:

[0016] The first communication module is used to receive the first command signal;

[0017] The second communication module is used to send a first signal in response to the first command signal based on the transmission resource with sequence number h among the K transmission resources, where K is a positive integer and h is a non-negative integer less than or equal to K-1.

[0018] In another aspect, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store computer program instructions executable by the processor; and the processor implements the signal transmission method of any of the above embodiments when executing the computer program instructions.

[0019] In another aspect, a computer-readable storage medium is provided, including a non-transitory computer-readable storage medium storing computer program instructions that, when executed on a computer (e.g., a communication device or a signal transmission device), implement the signal transmission method of any of the above embodiments.

[0020] In another aspect, a computer program product is provided, which includes computer program instructions that, when executed, implement the signal transmission method of any of the above embodiments. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are merely drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings.

[0022] Figure 1 is a schematic diagram of the architecture of a communication system according to some embodiments.

[0023] Figure 2 is a flowchart of a signal transmission method according to some embodiments.

[0024] Figure 3 is a schematic diagram of the timing relationship of a signal according to some embodiments.

[0025] Figure 4 is a schematic diagram of the timing relationship of another signal provided according to some embodiments.

[0026] Figure 5 is a schematic diagram of the timing relationship of another signal provided according to some embodiments.

[0027] Figure 6 is a schematic diagram of the timing relationship of another signal provided according to some embodiments.

[0028] Figure 7 is a schematic diagram of the timing relationship of another signal provided according to some embodiments.

[0029] Figure 8 is a flowchart of another signal transmission method provided according to some embodiments.

[0030] Figure 9 is a block diagram of a signal transmission device according to some embodiments.

[0031] Figure 10 is a block diagram of another signal transmission device according to some embodiments.

[0032] Figure 11 is a block diagram of a communication device according to some embodiments. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions of the embodiments of this disclosure, the technical solutions of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0034] In this disclosure, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. The terms "first," "second," etc., do not limit the quantity or order of execution, and "first," "second," etc., do not necessarily imply differences.

[0035] It should be noted that in this disclosure, "exemplary" means that there are examples, illustrations, or descriptions. The phrase " / B" in this disclosure can represent A or B. The words "and / or" in this document are merely exemplary means that there are examples, illustrations, or descriptions.

[0036] In related passive IoT communication technologies, readers and devices typically communicate in a question-and-answer manner. For example, after the reader sends a trigger signal to the device, the device sends a response signal to the reader. Due to the simple structure and low processing power of the device, a certain time interval needs to be reserved between adjacent signals during signal transmission and reception for signal processing, transmission and reception switching, and other operations.

[0037] In communication involving multiple devices, the reader's signal transmission and reception processes with each device are performed independently and sequentially. The transmission and reception process for one device is completed before proceeding to the next, and a time interval must be reserved between signals. This results in low transmission efficiency and a long transmission time. To improve communication efficiency, a method can be considered that uses one downlink signal to schedule multiple uplink signals, enabling transmission in multiple TD, FDM, or CDM modes.

[0038] However, in one-to-many communication based on the aforementioned TDM, FDM, or CDM, the timing relationship between signal transmission and reception, and how the device determines the signal transmission and reception times, require further research.

[0039] In view of this, the present disclosure provides a signal transmission method, which includes: sending a first command signal; and receiving a first signal in response to the first command signal based on K transmission resources. This method can be used to determine the signal transmission and reception times in a one-to-many transmission mode, improving transmission efficiency and reducing communication latency.

[0040] The signal transmission method provided in this disclosure can be applied to systems with various communication standards. For example, the systems to which the signal transmission method provided in this disclosure is applicable include, but are not limited to, long-term evolution (LTE) systems, various versions based on LTE evolution, 5th generation (5G) communication systems, wireless fidelity (Wi-Fi) systems, 3GPP-related communication systems, ambient internet of things (Ambient IoT) systems, or systems integrating multiple systems. Furthermore, the signal transmission method provided in this disclosure can also be applied to future-oriented communication systems (such as 6th generation mobile communication networks (6G) communication systems), and this disclosure does not limit its application in this regard.

[0041] In this embodiment of the disclosure, the network architecture of the mobile communication network (including but not limited to existing mobile communication networks and future mobile communication networks) may include at least a first communication node and a second communication node. In the uplink, the first communication node may be a terminal-side device (e.g., including but not limited to a terminal), and the second communication node may be a network-side device (e.g., including but not limited to a base station). In the downlink, the second communication node may be a terminal-side device (e.g., including but not limited to an Ambient IoT terminal device), and the first communication node may be a network-side device (e.g., including but not limited to a base station and user equipment (UE)). Here, the first communication node may be referred to as the first node, and the second communication node may be referred to as the second node.

[0042] For example, taking a reader as the first node and a terminal as the second node, Figure 1 is a schematic diagram of the architecture of a communication system according to some embodiments. The communication system includes a terminal 10 and a reader 20. The terminal 10 and the reader 20 are communicatively connected. There can be one or more terminals 10 and readers 20, and the number is not limited.

[0043] Here, terminal 10 can be a terminal-side device (such as, but not limited to, a terminal), an IoT device, etc., and reader 20 can be a network-side device (such as, but not limited to, a base station), an access network device, a relay, an auxiliary communication node, etc.

[0044] In some embodiments, the terminal can be a device with wireless transceiver capabilities. The terminal can be a passive device, an ambient IoT device, a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of this disclosure do not limit the application scenarios. The terminal may also be referred to as a user, UE, access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, or UE device, etc., and the embodiments of this disclosure do not limit these terms.

[0045] In some embodiments, the base station may be a base station in LTE, long term evolution advanced (LTEA) or an evolved Node B (eNB or eNodeB), a base station device in a 5G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (RISs), routers, relays, transmit receive points (TRPs), wireless fidelity (WIFI) devices, UEs and other network-side devices. This disclosure does not limit this aspect.

[0046] It should be noted that Figure 1 is only an exemplary framework diagram. The number of devices included in Figure 1 and the names of each device are not limited. In addition to the devices shown in Figure 1, the communication system may also include other devices, such as core network devices. This disclosure does not impose any restrictions on this.

[0047] The application scenarios of the embodiments disclosed herein are not limited. The system architecture and business scenarios described in the embodiments of this disclosure are for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of this disclosure. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this disclosure are also applicable to similar technical problems.

[0048] This disclosure provides a signal transmission method applied to a first node. As shown in Figure 2, the method includes the following steps:

[0049] S101, Send the first command signal.

[0050] In some embodiments, a first command signal triggers an access occasion. Each time a first node sends a first command signal, it indicates the start of a new access occasion. A second node can select an access occasion from the range of access occasions, and send a first signal on that access occasion to initiate initial access. For example, a second node selects an access occasion, and after receiving the trigger signal (i.e., the first command signal) corresponding to the selected access occasion, sends the first signal to initiate initial access.

[0051] In some examples, the first command signal is a paging signal in Ambient IoT, or an access timing trigger signal. Here, the paging signal can be used to indicate the number or range of access timings, and it can also be used to trigger the first access timing in the access timing range, i.e., access timing index 0; the access timing trigger signal is used to trigger an access timing, for example, to trigger an access timing in the access timing range other than the first access timing.

[0052] In some embodiments, the first command signal can also be other command signals, such as a "read" command signal, a "write" command signal, etc. The first command signal may contain the identification information of the second node, and the second node corresponding to the identification information responds to the first command signal, that is, sends the first signal.

[0053] S102. Receive a first signal in response to the first command signal based on K transmission resources, where K is a positive integer.

[0054] In some embodiments, after sending a first command signal, the first node can receive M first signals based on K transmission resources, where M is greater than or equal to 0. Here, M equal to 0 indicates that no first signal was detected based on the K transmission resources. This could be because no second node sent a first signal at the time of transmission triggered by the first command signal, or one or more second nodes sent first signals but none of them were correctly decoded by the first node. M greater than 0 indicates that M first signals were detected based on the K transmission resources. The M first signals may have been transmitted based on one or more of the K transmission resources and were correctly decoded by the first node.

[0055] In some embodiments, the transmission resources include at least one of time-domain resources, frequency-domain resources, and code-domain resources. For example, when the transmission resources include time-domain resources, the first node receives the first signal on K time-domain resources; when the transmission resources include frequency-domain resources, the first node receives the first signal on K frequency-domain resources, where the frequency-domain resources may be transmission subbands, subchannels, subcarriers, or physical resource blocks in the frequency domain; when the transmission resources include code-domain resources, the first node receives the first signal using K spreading codes.

[0056] In some embodiments, the K transmission resources include K time-domain resources. The K time-domain resources are numbered from 0 to K-1.

[0057] In some embodiments, the delay value of the time-domain resource with index i among the K time-domain resources is determined based on at least one of the time-domain resource index i, the duration of the time-domain resource, and the interval duration between two adjacent time-domain resources among the K time-domain resources; or, the delay value of the time-domain resource with index i among the K time-domain resources is indicated by first indication information. Here, the delay value of the time-domain resource with index i is used to determine the start time of the time-domain resource with index i, where i is a positive integer less than or equal to K-1.

[0058] In this disclosure, the delay value of the time-domain resource can be understood as the interval between the end time of the first command signal and the time-domain resource. Alternatively, the delay value of the time-domain resource can be understood as the interval between the end time of the first command signal and the end time of the time-domain resource. Therefore, the start time of the time-domain resource can be determined based on the end time of the first command signal and the delay value of the time-domain resource. For example, the start time of the time-domain resource is t after the end time of the first command signal. i At time t i This represents the latency value of the time-domain resource, for example, t. i = 10 milliseconds.

[0059] In some embodiments, the latency value of the time-domain resource with sequence number i is calculated using the following formula:

[0060] Here, T i Let T be the latency value of the time-domain resource with index i. A T is the interval between the end time of the first command signal and the first time-domain resource (i.e., the time-domain resource with sequence number 0) among the K time-domain resources. A Let T be the latency value of the first time-domain resource among K time-domain resources. B,n Let T be the interval duration between time-domain resource with index n and time-domain resource with index n+1 among K time-domain resources. 1,n Let n be the duration of the time-domain resource with index n out of K time-domain resources.

[0061] In some embodiments, the K transmission resources include K time-domain resources; the interval between the time-domain resource with index n and the time-domain resource with index n+1 is greater than or equal to the (n+1)th preset duration; here, n is an integer greater than or equal to 0 and less than or equal to K-2. For example, if n = 0, the interval between the time-domain resource with index 0 and the time-domain resource with index 1 is greater than or equal to a first preset duration; or if n = 1, the interval between the time-domain resource with index 1 and the time-domain resource with index 2 is greater than or equal to a second preset duration; or if n = 2, the interval between the time-domain resource with index 2 and the time-domain resource with index 3 is greater than or equal to a third preset duration; and so on, without further details.

[0062] In some embodiments, when n equals 0, the (n+1)th preset duration (i.e., the first preset duration) is determined based on the duration of one of the K time-domain resources; when n is greater than 0, the (n+1)th preset duration is determined based on the durations of n time-domain resources among the K time-domain resources and the nth preset duration. Here, the nth preset duration is the interval duration between the time-domain resource with index n-1 and the time-domain resource with index n among the K time-domain resources.

[0063] For example, when n equals 0, the interval duration G0 between the time-domain resource with index 0 and the time-domain resource with index 1 is greater than or equal to 0.21*T1; or, when n is greater than 0, the interval duration G0 between the time-domain resource with index n and the time-domain resource with index n+1 is greater than or equal to 0.21*T1. n Greater than or equal to 0.21*(n*T1+G) n-1 Here, n is greater than or equal to 0 and less than or equal to K-2, T1 is the duration of one of the K time-domain resources, and G... n-1 This is the interval duration between the time-domain resource with sequence number n-1 and the time-domain resource with sequence number n.

[0064] In some embodiments, the duration of one of the K time-domain resources is equal to a pre-configured first signal transmission duration. The pre-configured first signal transmission duration is a predefined duration, or the pre-configured first signal transmission duration is determined according to first signal configuration indication information, where the first signal configuration indication information is sent by a first node. For example, the first signal configuration indication information indicates the transmission duration of the first signal, or the first signal configuration indication information indicates at least one of the following configuration information: the data block size, data rate, code rate, repetition times of the first signal, and the first signal transmission duration is determined according to the configuration information. The end time of a time-domain resource is equal to the start time of the time-domain resource plus the duration of the time-domain resource.

[0065] In some embodiments, the K transmission resources include K time-domain resources; in the case where the first signal is not detected based on the last time-domain resource among the K time-domain resources, the second signal is started to be transmitted within the time range of S1 to S2 or (1 + e)*S1 to (1 + e)*S2 after the end time of the last time-domain resource among the K time-domain resources. Exemplarily, FIG. 3 gives an example of the timing relationship in this case, where S1 ≤ T D2R ≤ S2, or (1 + e)*S1 ≤ T D2R ≤ (1 + e)*S2.

[0066] In some embodiments, the K transmission resources include K time-domain resources; in the case where the first signal is detected based on the last time-domain resource among the K time-domain resources and the end time of the first signal is earlier than or equal to the end time of the last time-domain resource, the second signal is started to be transmitted within the time range of S1 to S2 or (1 + e)*S1 to (1 + e)*S2 after the end time of the last time-domain resource among the K time-domain resources. Exemplarily, FIG. 4 gives a schematic diagram of the timing relationship of a signal in this case, where S1 ≤ T D2R ≤ S2, or (1 + e)*S1 ≤ T D2R ≤ (1 + e)*S2.

[0067] In some embodiments, the K transmission resources include K time-domain resources; the first node starts to transmit the second signal within the time range of a + S1 to a + S2 or (1 + e)*(a + S1) to (1 + e)*(a + S2) after the end time of the last time-domain resource among the K time-domain resources.

[0068] Here, the second signal includes acknowledgment information of one or more first signals, S1 is the first interval duration, S2 is the second interval duration, 0 < e < 1, and a is greater than or equal to 0. Exemplarily, FIG. 5 gives a schematic diagram of the timing relationship of a signal in this case, where a + S1 ≤ T D2R ≤ a + S2, or (1 + e)*(a + S1) ≤ TD2R ≤(1+e)*(a+S1).

[0069] In some embodiments, the value of a is determined based on at least one of the following: the interval between the end time of the first command signal and the first time domain resource among the K time domain resources, the interval between adjacent time domain resources among the K time domain resources, and the sum of the durations of the K time domain resources.

[0070] In some embodiments, the value of a is determined by the following formula:

[0071] Here, T A T is the interval between the end time of the first command signal and the first time-domain resource (i.e., the time-domain resource with sequence number 0) among the K time-domain resources. A Let T be the latency value of the first time-domain resource among K time-domain resources. B,j Let T be the interval duration between time-domain resource with index j and time-domain resource with index j+1 among K time-domain resources. 1,j Let j be the duration of the time-domain resource with index j among the K time-domain resources.

[0072] In some embodiments, the K transmission resources include K time-domain resources; when a first signal is detected based on the last time-domain resource among the K time-domain resources, the first node begins transmitting a second signal within a time range of S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the first signal. For example, Figure 6 shows a schematic diagram of the timing relationship of a signal in this case, where S1≤T D2R ≤S2, or (1+e)*S1≤T D2R ≤(1+e)*S2.

[0073] In some embodiments, the K transmission resources include K time-domain resources; when a first signal is detected based on the last time-domain resource among the K time-domain resources, and the end time of the first signal is later than the end time of the last time-domain resource, the first node begins to transmit a second signal within a time range of S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the first signal. For example, Figure 7 shows a schematic diagram of the timing relationship of a signal in this case, where S1≤T D2R ≤S2, or (1+e)*S1≤T D2R ≤(1+e)*S2.

[0074] Here, the second signal contains confirmation information for one or more of the first signals, S1 is the first interval duration, S2 is the second interval duration, and 0 <e<1。

[0075] In some embodiments, S1 is a first interval duration, S2 is a second interval duration, and S1 is less than S2. Exemplarily, S1 and S2 are predefined values; e is the clock error coefficient of the second node, 0. <e<1。

[0076] In some examples, the signal sent from the second node to the first node is a D2R (Device to Reader) signal or an uplink signal, and the signal sent from the first node to the second node is an R2D (Reader to Device) signal or a downlink signal. The first interval is the minimum time interval between a D2R signal and a subsequent adjacent R2D signal, or the first interval is the minimum time interval between an uplink signal and a subsequent adjacent downlink signal. The second interval is the maximum time interval between a D2R signal and a subsequent adjacent R2D signal, or the second interval is the maximum time interval between an uplink signal and a subsequent adjacent downlink signal.

[0077] In some embodiments, the first signal sent by the second node includes a second node identifier, and the second node identifier corresponds one-to-one with the second node. In one possible implementation, a second node identifier is a random number containing L binary bits, for example, L = 16; in another possible implementation, a second node identifier is a product identification code or a part of a product identification code of the second node.

[0078] In some embodiments, the second signal includes confirmation information of the first signal. For example, the second signal includes a second node identifier from the first signal, where the second node identifier in the second signal is the confirmation information of the first signal.

[0079] In some embodiments, the first node begins detecting the first signal at a first moment no later than the end time of the first command signal; the interval between the first moment and the end time of the first command signal is a duration of S3 or S3*(1-e), where e is greater than 0 and less than 1. S3 is a third interval duration, which is a predefined value or indicated by second indication information.

[0080] In some embodiments, when N first signals are received, the first node starts sending a second signal within a time range of S1 to S2 after the end time of the latest first signal among the N first signals; or, when N first signals are received, the first node starts sending a second signal within a time range of S1*(1+e) to S2*(1+e) after the end time of the latest first signal among the N first signals.

[0081] This disclosure provides a signal transmission method applied to a second node. As shown in Figure 8, the method includes the following steps:

[0082] S201, Receive the first command signal.

[0083] In some embodiments, a first command signal triggers an access opportunity. Each time a first node sends a first command signal, it indicates the start of a new access opportunity. A second node can select an access opportunity within the access time range, and send a first signal at that access opportunity to initiate initial access. For example, a second node selects an access opportunity, and after receiving the trigger signal (i.e., the first command signal) corresponding to the selected access opportunity, sends the first signal to initiate initial access.

[0084] In some examples, the first command signal is a paging signal in Ambient IoT, or an access timing trigger signal. Here, the paging signal can be used to indicate the number or range of access timings, and it can also be used to trigger the first access timing in the access timing range, i.e., access timing index 0; the access timing trigger signal is used to trigger an access timing, for example, to trigger an access timing in the access timing range other than the first access timing.

[0085] In some embodiments, the first command signal may also be other command signals, such as a "read" command signal, a "write" command signal, etc. The first command signal may include a second node identifier, and the second node corresponding to the second node identifier responds to the first command signal, that is, sends the first signal.

[0086] S202. Based on the transmission resource with sequence number h among the K transmission resources, send a first signal in response to the first command signal.

[0087] K is a positive integer, and h is a non-negative integer less than or equal to K-1.

[0088] In some embodiments, if the access timing triggered by the first command signal is the access timing selected by the second node, the second node sends the first signal; or, if the first command signal contains the identifier of the second node, the second node sends the first signal.

[0089] In some embodiments, the transmission resources include at least one of time-domain resources, frequency-domain resources, and code-domain resources.

[0090] In some embodiments, when the transmission resources include time-domain resources, the second node transmits the first signal on one of the K time-domain resources; when the transmission resources include frequency-domain resources, the second node transmits the first signal on one of the K frequency-domain resources, where the frequency-domain resources may be transmission sub-bands, sub-channels, subcarriers, or physical resource blocks in the frequency domain; when the transmission resources include code-domain resources, the second node extends the first signal using one of the K spreading codes and transmits the extended first signal.

[0091] In some embodiments, the K transmission resources include K time-domain resources. The K time-domain resources are numbered from 0 to K-1.

[0092] In some embodiments, sending a first signal in response to a first command signal based on a transmission resource with sequence number h among K transmission resources includes: determining the delay value t of the time-domain resource with sequence number h among the K time-domain resources. h ; t after the end time of the first command signal h The first signal is sent at the start of the time; or, at (1-e)*t after the end time of the first command signal. h up to (1+e)*t h The first signal is sent within the time frame, 0 <e<1。

[0093] In some embodiments, the delay value of the time-domain resource with sequence number h is determined based on at least one of the sequence number h of the time-domain resource, the duration of the time-domain resource, and the interval duration between two adjacent time-domain resources among the K time-domain resources; or, the delay value of the time-domain resource with sequence number h is indicated by the first indication information.

[0094] In some examples, when h=0, the delay value of the time-domain resource with index 0 (i.e., the first time-domain resource) is T. A When 1 ≤ h ≤ K-1, the time delay value of the time-domain resource with index h is... Here, T A T is the interval between the end time of the first command signal and the first time-domain resource among the K time-domain resources (i.e., the time-domain resource with sequence number 0). A Let T be the latency value of the first time-domain resource among K time-domain resources. B,n Let T be the interval duration between time-domain resource with index n and time-domain resource with index n+1 among K time-domain resources. 1,n Let n be the duration of the time-domain resource with sequence number n.

[0095] In some embodiments, after the second node sends a first signal in response to the first command signal based on transmission resource with sequence number h among K transmission resources, it detects a second signal sent by the first node. Here, the second signal contains acknowledgment information for one or more of the first signals. The second node's detection of the second signal sent by the first node can be implemented in two possible ways:

[0096] Method 1: Transmission resources include time-domain resources; the first delay value R1 of the second signal is determined based on the sequence number h and the quantity K of the time-domain resources; the second signal is detected starting at a time R1 or (1-e)*R1 after the end time of the first signal, 0 <e<1。

[0097] In some examples, the first time delay value R1 of the second signal is determined in the following way:

[0098] When h equals K-1, the first time delay value R1 of the second signal equals S1; or,

[0099] When h is less than K-1, the first time delay value R1 of the second signal is calculated using the following formula:

[0100] or,

[0101] Here, T1 is the duration of one of the K time-domain resources, T B,n Let S1 be the interval duration between the time-domain resource with index n and the time-domain resource with index n+1 among K time-domain resources, where S1 is the first interval duration, and e is greater than 0 and less than 1.

[0102] Method 2: Determine the second delay value R2 of the second signal based on the quantity K and duration of the time-domain resources. Begin detecting the second signal after a time interval R2 or (1-e)*R2 that is earlier than or equal to the end time of the first command signal. <e<1。

[0103] In some examples, the second time delay value R2 of the second signal is determined by the following formula:

[0104] or,

[0105] Here, T A T is the interval between the end time of the first command signal and the first time-domain resource among the K time-domain resources (i.e., the time-domain resource with sequence number 0). A Let T be the latency value of the first time-domain resource among the K time-domain resources, and T1 be the duration of a time-domain resource among the K time-domain resources. B,n Let S1 be the interval duration between the time-domain resource with index n and the time-domain resource with index n+1 among K time-domain resources, where S1 is the first interval duration, and e is greater than 0 and less than 1.

[0106] In some embodiments, S1 is a first interval duration, S2 is a second interval duration, and S1 is less than S2. Exemplarily, S1 and S2 are predefined values; e is the clock error coefficient of the second node, 0. <e<1。

[0107] In some examples, the signal sent from the second node to the first node is a D2R signal or an uplink signal, and the signal sent from the first node to the second node is an R2D signal or a downlink signal. The first interval duration is the minimum time interval between a D2R signal and a subsequent adjacent R2D signal, or the minimum time interval between an uplink signal and a subsequent adjacent downlink signal; the second interval duration is the maximum time interval between a D2R signal and a subsequent adjacent R2D signal, or the maximum time interval between an uplink signal and a subsequent adjacent downlink signal.

[0108] In some embodiments, the K transmission resources include K time-domain resources; the interval between the time-domain resource with index n and the time-domain resource with index n+1 is greater than or equal to the (n+1)th preset duration. Here, n is an integer greater than or equal to 0 and less than or equal to K-2. For example, if n = 0, the interval between the time-domain resource with index 0 and the time-domain resource with index 1 is greater than or equal to a first preset duration; or if n = 1, the interval between the time-domain resource with index 1 and the time-domain resource with index 2 is greater than or equal to a second preset duration; or if n = 2, the interval between the time-domain resource with index 2 and the time-domain resource with index 3 is greater than or equal to a third preset duration; and so on, without further details.

[0109] In some embodiments, when n equals 0, the (n+1)th preset duration (i.e., the first preset duration) is determined based on the duration of one of the K time-domain resources; or, when n is greater than 0, the (n+1)th preset duration is determined based on the durations of n time-domain resources among the K time-domain resources and the nth preset duration. Here, the nth preset duration is the interval duration between the time-domain resource with index n-1 and the time-domain resource with index n among the K time-domain resources.

[0110] For example, when n equals 0, the interval duration G0 between the time-domain resource with index n and the time-domain resource with index n+1 is greater than or equal to 0.21*T1; or, when n is greater than 0, the interval duration G0 between the time-domain resource with index n and the time-domain resource with index n+1 is greater than or equal to 0.21*T1. n Greater than or equal to 0.21*(n*T1+G) n-1 Here, n is greater than or equal to 0 and less than or equal to K-2. T1 is the duration of one of the K time-domain resources. G n-1 This is the interval duration between the time-domain resource with sequence number n-1 and the time-domain resource with sequence number n.

[0111] In some examples, the duration of a time-domain resource is equal to a preconfigured first signal transmission duration. The preconfigured first signal transmission duration is a predefined duration. Alternatively, the preconfigured first signal transmission duration is determined according to first signal configuration indication information. For example, the first signal configuration indication information indicates the transmission duration of the first signal, or the first signal configuration indication information indicates at least any one of the following configuration information: the data block size of the first signal, the data rate, the code rate, and the number of repetitions, and the first signal transmission duration is determined according to the configuration information.

[0112] In some embodiments, the second node transmits a first signal in response to a first command signal based on a time-domain resource with the serial number h among K time-domain resources, including: the second node starts to transmit the first signal within the time range from S3 to S4 or from S3*(1 - e) to S4*(1 + e) after the end time of the first command signal; or, starts to transmit the first signal within the time range from S3 or from S3*(1 - e) to S3*(1 + e) after the end time of the first command signal. Here, S3 is a third interval duration, S4 is a fourth interval duration, and <e<1.

[0113] In some examples, S3 is a third interval duration, S4 is a fourth interval duration, S3 is less than S4. Exemplarily, S3 and S4 are predefined values; e is the clock error coefficient of the second node, and <e<1. In some other examples, S3 is indicated by second indication information sent by the first node.

[0114] In some examples, the signal sent by the first node to the second node is an R2D (Reader to device) signal or a downlink signal, and the signal sent by the second node to the first node is a D2R (Device to reader) signal or an uplink signal. The third interval duration is the minimum time interval between an R2D signal and the subsequent adjacent D2R signal, or the minimum time interval between a downlink signal and the subsequent adjacent uplink signal; the fourth interval duration is the maximum time interval between an R2D signal and the subsequent adjacent D2R signal, or the maximum time interval between a downlink signal and the subsequent adjacent uplink signal. Exemplarily, the third interval duration and the fourth interval duration are predefined values.

[0115] In some embodiments, the second node starts to detect a second signal at S1 or S1*(1 - e) after or equal to the end time of the first signal; here, the second signal includes confirmation information of one or more first signals, S1 is a first interval duration, and <e<1. Exemplarily, e is the clock error coefficient of the second node.

[0116] Based on this, it can be used to determine the signal transmission and reception time in a one-to-multiple transmission mode, improve the transmission efficiency, and reduce the communication delay.

[0117] For further detailed descriptions of S201-S202 in this disclosure, as well as more detailed descriptions of the various technical features and beneficial effects, please refer to the corresponding method embodiment sections above, which will not be repeated here.

[0118] The foregoing primarily describes the solutions of the embodiments of this disclosure from a methodological perspective. The following also illustrates a signal transmission apparatus for executing the signal transmission methods in any of the above embodiments and their possible implementations. It is understood that, in order to implement the signal transmission method, the signal transmission apparatus includes hardware structures and / or software modules corresponding to the execution of various functions; those skilled in the art should readily recognize that, in conjunction with the algorithm steps of the various examples described in the embodiments of this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0119] This disclosure embodiment can divide the signal transmission device into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. It should be noted that the module division in this disclosure embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.

[0120] Figure 9 is a block diagram of a signal transmission device according to some embodiments, applied to a first node. The signal transmission device 30 includes: a first communication module 31, a second communication module 32, and a detection module 33.

[0121] Here, the first communication module 31 is used to send the first command signal;

[0122] The second communication module 32 is used to receive a first signal in response to the first command signal based on K transmission resources, where K is a positive integer.

[0123] In some embodiments, the K transmission resources include K time-domain resources; the delay value of the time-domain resource with sequence number i among the K time-domain resources is determined based on at least one of the sequence number i of the time-domain resource, the duration of the time-domain resource, and the interval duration between two adjacent time-domain resources among the K time-domain resources; or, the delay value of the time-domain resource with sequence number i among the K time-domain resources is indicated by first indication information; here, the delay value of the time-domain resource with sequence number i is used to determine the start time of the time-domain resource with sequence number i, where i is a positive integer less than or equal to K-1.

[0124] In some embodiments, the latency value of the time-domain resource with sequence number i is calculated using the following formula:

[0125] Here, T i Let T be the latency value of the time-domain resource with index i. A T is the interval between the end time of the first command signal and the first time-domain resource among the K time-domain resources. B,n Let T be the interval duration between time-domain resource with index n and time-domain resource with index n+1 among K time-domain resources. 1,n Let n be the duration of the time-domain resource with index n out of K time-domain resources.

[0126] In some embodiments, the K transmission resources include K time-domain resources; the interval between the time-domain resource with sequence number n and the time-domain resource with sequence number n+1 is greater than or equal to the (n+1)th preset duration.

[0127] Here, n is an integer greater than or equal to 0 and less than or equal to K-2.

[0128] In some embodiments, when n equals 0, the (n+1)th preset duration is determined based on the duration of one of the K time-domain resources; when n is greater than 0, the (n+1)th preset duration is determined based on the durations of n time-domain resources among the K time-domain resources and the nth preset duration.

[0129] In some embodiments, the K transmission resources include K time-domain resources; the first communication module 31 is specifically used for:

[0130] If the first signal is not detected in the last time domain resource among the K time domain resources, the second signal is transmitted within the time range of S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the last time domain resource among the K time domain resources; or,

[0131] If a first signal is detected based on the last time-domain resource among K time-domain resources, and the end time of the first signal is earlier than or equal to the end time of the last time-domain resource, then a second signal is transmitted within the time range S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the last time-domain resource among the K time-domain resources; or,

[0132] The first node begins sending the second signal within the time range of a+S1 to a+S2 or (1+e)*(a+S1) to (1+e)*(a+S2) after the end time of the last time domain resource among the K time domain resources;

[0133] Here, the second signal contains confirmation information of one or more first signals, S1 is the first interval duration, S2 is the second interval duration, e is greater than 0 and less than 1, and a is greater than or equal to 0.

[0134] In some embodiments, the value of a is determined based on at least one of the following: the interval between the end time of the first command signal and the first time domain resource among the K time domain resources, the interval between adjacent time domain resources among the K time domain resources, and the sum of the durations of the K time domain resources.

[0135] In some embodiments, the value of a is determined by the following formula:

[0136] Here, T A T is the interval between the end time of the first command signal and the first time-domain resource among the K time-domain resources. B,j Let T be the interval duration between time-domain resource with index j and time-domain resource with index j+1 among K time-domain resources. 1,j Let j be the duration of the time-domain resource with index j among the K time-domain resources.

[0137] In some embodiments, the K transmission resources include K time-domain resources; the first communication module 31 is specifically used for:

[0138] If a first signal is detected based on the last time-domain resource among K time-domain resources, the first node begins transmitting a second signal within the time range of S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the first signal; or,

[0139] If a first signal is detected in the last time domain resource among K time domain resources, and the end time of the first signal is later than the end time of the last time domain resource, the first node starts to send a second signal within the time range of S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the first signal.

[0140] Here, the second signal contains confirmation information of one or more first signals, S1 is the first interval duration, S2 is the second interval duration, and e is greater than 0 and less than 1.

[0141] In some embodiments, the detection module 33 is configured to start detecting the first signal at a first moment no later than the end time of the first command signal; the interval between the first moment and the end time of the first command signal is a duration of S3 or a duration of S3*(1-e), where S3 is the third interval duration and e is greater than 0 and less than 1.

[0142] For a more detailed description of the first communication module 31, the second communication module 32, and the detection module 33, as well as a more detailed description of the various technical features and the beneficial effects, please refer to the corresponding method embodiment section above, which will not be repeated here.

[0143] Figure 10 is a block diagram of a signal transmission device according to some embodiments, applied to a second node. The signal transmission device 40 includes: a first communication module 41, a second communication module 42, and a processing module 43.

[0144] Here, the first communication module 41 is used to receive the first command signal;

[0145] The second communication module 42 is used to send a first signal in response to the first command signal based on the transmission resource with sequence number h among the K transmission resources, where K is a positive integer and h is a non-negative integer less than or equal to K-1.

[0146] In some embodiments, the transmission resources include time-domain resources, and the processing module 43 is used to determine the delay value t of the time-domain resource with index h among the K time-domain resources. h The second communication module 42 is used for communication after the end time of the first command signal. h The first signal is sent at the start of the time; or, at (1-e)*t after the end time of the first command signal. h up to (1+e)*t h The first signal is sent within the time frame, where e is greater than 0 and less than 1.

[0147] In some embodiments, the delay value of the time-domain resource with sequence number h is determined based on at least one of the sequence number h of the time-domain resource, the duration of the time-domain resource, and the interval duration between two adjacent time-domain resources among the K time-domain resources; or, the delay value of the time-domain resource with sequence number h is indicated by the first indication information.

[0148] In some embodiments, the transmission resources include time-domain resources; the processing module 43 is specifically used for:

[0149] The first time delay value R1 of the second signal is determined based on the sequence number h of the time-domain resource and the quantity K of the time-domain resource. The detection of the second signal begins at a time R1 or (1-e)*R1 that is earlier than or equal to the end time of the first signal; or,

[0150] The second delay value R2 of the second signal is determined based on the quantity K of the time domain resources and the duration of the time domain resources. The detection of the second signal begins at a time R2 or (1-e)*R2 after the end time of the first command signal, which is earlier than or equal to the end time of the first command signal.

[0151] Here, the second signal contains confirmation information for one or more of the first signals, where e is greater than 0 and less than 1.

[0152] In some embodiments, the first time delay value R1 of the second signal is determined in the following manner:

[0153] When h equals K-1, the first time delay value R1 of the second signal equals S1; or,

[0154] When h is less than K-1, the first time delay value R1 of the second signal is calculated using the following formula:

[0155] or,

[0156] Here, T1 is the duration of one of the K time-domain resources, T B,n Let S1 be the interval duration between the time-domain resource with index n and the time-domain resource with index n+1 among K time-domain resources, where S1 is the first interval duration, and e is greater than 0 and less than 1.

[0157] In some embodiments, the second time delay value R2 of the second signal is determined by the following formula:

[0158] or,

[0159] Here, T A T1 is the duration of the interval between the first command signal and the first time-domain resource among the K time-domain resources, and T1 is the duration of one time-domain resource among the K time-domain resources. B,n Let e ​​be the interval duration between the time-domain resource with index n and the time-domain resource with index n+1 among K time-domain resources, where e is greater than 0 and less than 1.

[0160] In some embodiments, the second communication module 42 is specifically used for:

[0161] The first signal is transmitted within the time range of S3 to S4 or S3*(1-e) to S4*(1+e) after the end time of the first command signal; or,

[0162] The first signal is sent at time S3 or within the time range of S3*(1-e) to S3*(1+e) after the end time of the first command signal;

[0163] Here, S3 is the duration of the third interval, S4 is the duration of the fourth interval, and e is greater than 0 and less than 1.

[0164] In some embodiments, the processing module 43 is configured to start detecting the second signal at a time S1 or S1*(1-e) earlier than or equal to the end time of the first signal; here, the second signal contains confirmation information of one or more first signals, S1 is the first interval duration, and e is greater than 0 and less than 1.

[0165] For a more detailed description of the first communication module 41, the second communication module 42, and the processing module 43, as well as a more detailed description of the various technical features and the beneficial effects, please refer to the corresponding method embodiment section above, which will not be repeated here.

[0166] It should be noted that the modules in Figures 9 and 10 can also be called units; for example, a communication module can be called a communication unit. Furthermore, in the embodiments shown in Figures 9 and 10, the names of the modules may not be those shown in the figures; for example, a communication module can also be called a transmitting module or a receiving module.

[0167] If the units or modules in Figures 9 and 10 are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this disclosure, or the parts that contribute to related technologies, or all or part of the technical solutions, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this disclosure. Storage media for storing computer software products include various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0168] In the case of implementing the functions of the integrated modules described above in hardware, embodiments of this disclosure also provide a possible structure for a communication device used to execute the signal transmission method provided in embodiments of this disclosure. As shown in FIG11, the communication device 500 includes: a communication interface 503, a processor 502, and a bus 504. In some embodiments, the communication device may further include a memory 501.

[0169] Processor 502 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 502 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 502 may also be a combination that implements computational functions, such as a combination of one or more microprocessors, a digital signal processor (DSP), and a microprocessor, etc.

[0170] Communication interface 503 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0171] The memory 501 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0172] In some embodiments, the memory 501 may exist independently of the processor 502. The memory 501 may be connected to the processor 502 via a bus 504 and is used to store instructions or program code. When the processor 502 calls and executes the instructions or program code stored in the memory 501, it can implement the signal transmission method provided in the embodiments of this disclosure.

[0173] In other embodiments, memory 501 may also be integrated with processor 502.

[0174] Bus 504 can be an extended industry standard architecture (EISA) bus, etc. Bus 504 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in Figure 11, but this does not mean that there is only one bus or one type of bus.

[0175] Some embodiments of this disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) storing computer program instructions that, when executed on a computer, cause the computer to perform a signal transmission method as described in any of the above embodiments.

[0176] In some embodiments, the computer may be the aforementioned signal transmission device, and this disclosure does not limit the specific form of the computer.

[0177] In some examples, the aforementioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in this disclosure may represent one or more devices for storing information and / or other machine-readable storage media. The term "machine-readable storage media" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0178] This disclosure provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the signal transmission method described in any of the above embodiments.

[0179] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A signal transmission method, wherein, Applied to the first node, the method includes: Send the first command signal; A first signal in response to the first command signal is received based on K transmission resources, where K is a positive integer.

2. The method according to claim 1, wherein, The K transmission resources include K time-domain resources; the delay value of the time-domain resource with sequence number i among the K time-domain resources is determined based on at least one of the sequence number i of the time-domain resource, the duration of the time-domain resource, and the interval duration between two adjacent time-domain resources among the K time-domain resources; or, the delay value of the time-domain resource with sequence number i among the K time-domain resources is indicated by the first indication information; The delay value of the time-domain resource with sequence number i is used to determine the start time of the time-domain resource with sequence number i, where i is a positive integer less than or equal to K-1.

3. The method according to claim 2, wherein, The latency value of the time-domain resource with sequence number i is calculated using the following formula: Among them, T i T is the delay value of the time-domain resource with index i. A T is the interval between the end time of the first command signal and the first time-domain resource among the K time-domain resources. B,n T is the interval duration between the time-domain resource with index n and the time-domain resource with index n+1 among the K time-domain resources. 1,n Let n be the duration of the time-domain resource with index n among the K time-domain resources.

4. The method according to claim 1, wherein, The K transmission resources include K time-domain resources; the interval between the time-domain resource with index n and the time-domain resource with index n+1 is greater than or equal to the (n+1)th preset duration. Where n is an integer greater than or equal to 0 and less than or equal to K-2.

5. The method according to claim 4, wherein, When n equals 0, the (n+1)th preset duration is determined based on the duration of one of the K time-domain resources; when n is greater than 0, the (n+1)th preset duration is determined based on the durations of n time-domain resources among the K time-domain resources and the nth preset duration.

6. The method according to claim 1, wherein, The method further includes: The K transmission resources include K time-domain resources; If the first signal is not detected in the last time domain resource among the K time domain resources, the second signal is transmitted within the time range of S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the last time domain resource among the K time domain resources; or, If a first signal is detected based on the last time-domain resource among the K time-domain resources, and the end time of the first signal is earlier than or equal to the end time of the last time-domain resource, a second signal is transmitted within the time range of S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the last time-domain resource among the K time-domain resources; or, The first node begins to send the second signal within the time range of a+S1 to a+S2 or (1+e)*(a+S1) to (1+e)*(a+S2) after the end time of the last time domain resource among the K time domain resources; The second signal contains confirmation information for one or more first signals, S1 is the first interval duration, S2 is the second interval duration, e is greater than 0 and less than 1, and a is greater than or equal to 0.

7. The method according to claim 6, wherein, The value of 'a' is determined based on at least one of the following: the interval between the end time of the first command signal and the first time domain resource among the K time domain resources, the interval between adjacent time domain resources among the K time domain resources, and the sum of the durations of the K time domain resources.

8. The method according to claim 7, wherein, The value of 'a' is determined by the following formula: Among them, T A T is the interval between the end time of the first command signal and the first time-domain resource among the K time-domain resources. B,j T is the interval duration between the time-domain resource with index j and the time-domain resource with index j+1 among the K time-domain resources. 1,j Let j be the duration of the time-domain resource with index j among the K time-domain resources.

9. The method according to claim 1, wherein, The method further includes: The K transmission resources include K time-domain resources; If a first signal is detected based on the last time-domain resource among the K time-domain resources, the first node begins transmitting a second signal within a time range of S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the first signal; or, If a first signal is detected based on the last time domain resource among the K time domain resources, and the end time of the first signal is later than the end time of the last time domain resource, the first node shall start sending a second signal within the time range of S1 to S2 or (1+e)*S1 to (1+e)*S2 after the end time of the first signal. The second signal contains confirmation information for one or more first signals, S1 is the first interval duration, S2 is the second interval duration, and e is greater than 0 and less than 1.

10. The method according to claim 1, wherein, include: The detection of the first signal begins at a first moment no later than the end time of the first command signal; the interval between the first moment and the end time of the first command signal is S3 or S3*(1-e) time, where S3 is the third interval, and e is greater than 0 and less than 1.

11. A signal transmission method, wherein, Applied to the second node, the method includes: Receive the first command signal; Based on the transmission resource with sequence number h among the K transmission resources, a first signal in response to the first command signal is sent, where K is a positive integer and h is a non-negative integer less than or equal to K-1.

12. The method according to claim 11, wherein, The transmission resources include time-domain resources, and the transmission of the first signal in response to the first command signal based on the transmission resource with sequence number h among the K transmission resources includes: Determine the time delay value t of the time-domain resource with index h among K time-domain resources. h ; t after the end time of the first command signal h The first signal is sent at the start of the time; or, at (1-e)*t after the end time of the first command signal. h up to (1+e)*t h The first signal is sent within the time frame, where e is greater than 0 and less than 1.

13. The method according to claim 12, wherein, The delay value of the time-domain resource with sequence number h is determined based on at least one of the sequence number h of the time-domain resource, the duration of the time-domain resource, and the interval duration between two adjacent time-domain resources among the K time-domain resources; or, the delay value of the time-domain resource with sequence number h is indicated by the first indication information.

14. The method according to claim 11, wherein, The method further includes: The transmission resources include time-domain resources; The first delay value R1 of the second signal is determined based on the sequence number h of the time-domain resource and the quantity K of the time-domain resource. The detection of the second signal begins at a time R1 or (1-e)*R1 that is earlier than or equal to the end time of the first signal; or... The second delay value R2 of the second signal is determined based on the number K of the time-domain resources and the duration of the time-domain resources. The detection of the second signal begins at a time R2 or (1-e)*R2 that is earlier than or equal to the end time of the first command signal. The second signal contains confirmation information for one or more first signals, where e is greater than 0 and less than 1.

15. The method according to claim 14, wherein, The first time delay value R1 of the second signal is determined in the following way: When h equals K-1, the first time delay value R1 of the second signal equals S1; or, When h is less than K-1, the first time delay value R1 of the second signal is calculated by the following formula: or, Where T1 is the duration of one of the K time-domain resources, T B,n S1 is the interval duration between the time-domain resource with index n and the time-domain resource with index n+1 among the K time-domain resources, where S1 is the first interval duration and e is greater than 0 and less than 1.

16. The method of claim 14, wherein, The second time delay value R2 of the second signal is determined by the following formula: or, Among them, T A T1 is the duration of the interval between the first command signal and the first time-domain resource among the K time-domain resources, and T1 is the duration of one of the K time-domain resources. B,n e is the interval between the time-domain resource with index n and the time-domain resource with index n+1 among the K time-domain resources, where e is greater than 0 and less than 1.

17. The method according to claim 11, wherein, The first signal sent in response to the first command signal based on the time-domain resource with sequence number h among the K time-domain resources includes: The first signal is transmitted within the time range of S3 to S4 or S3*(1-e) to S4*(1+e) after the end time of the first command signal; or, The first signal is sent at time S3 or within the time range of S3*(1-e) to S3*(1+e) after the end time of the first command signal; Where S3 is the duration of the third interval, S4 is the duration of the fourth interval, and e is greater than 0 and less than 1.

18. The method according to claim 11, wherein, The method further includes: The second node begins detecting the second signal at a time S1 or S1*(1-e) earlier than or equal to the end time of the first signal; wherein the second signal contains confirmation information of one or more first signals, S1 is the first interval duration, and e is greater than 0 and less than 1.

19. A communication device, wherein, include: Memory and processor; The memory and the processor are coupled; The memory is used to store instructions that can be executed by the processor; When the processor executes the instructions, it performs the method as described in any one of claims 1 to 18.

20. A computer-readable storage medium, wherein, The computer-readable storage medium includes a non-transitory computer-readable storage medium storing computer instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1 to 18.

21. A computer program product, wherein, When the computer program product is executed, it implements the method as described in any one of claims 1 to 18.

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