Information transmission method and device, related equipment and storage medium

Abstract

The invention discloses an information transmission method and device, a first node, a second node and a storage medium. The method comprises the steps that a first node determines third information according to first information and second information, the first information comprises precision demand information of a first service, the second information represents available frequency domain resources of the first node, and the third information is used for indicating frequency domain resources of updated reference signals; the reference signal is used for sensing a target object associated with the first service; sending the third information to a second node; wherein the first node is used for measuring the reference signal, and the second node is used for sending the reference signal.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, and in particular, to an information transmission method, apparatus, related device, and storage medium. Background Art

[0002] A communication and sensing integrated system refers to a system in which radar sensing functions and mobile communication functions are integrated to share hardware and spectrum resources. In this way, operations such as detection, tracking, identification, and imaging of target objects can be completed while information is being transmitted, so as to obtain information such as azimuth, distance, or speed. The communication and sensing integrated system can sense in-network devices (which can be understood as devices deployed in a network) and non-in-network devices (which can be understood as devices deployed outside the network), breaking through the limitations of positioning in-network devices in related networks, thereby further improving spectrum and resource utilization rates and meeting the needs of different future intelligent scenarios.

[0003] In a cooperative sensing system, two sensing nodes can form a cooperative sensing cluster and participate in the sensing process. Exemplarily, as Figure 1 shown, one sensing node (i.e., node A) acts as a transmitting node to send a sensing reference signal (which can also be called a sensing signal) into space, and another sensing node (i.e., node B) acts as a receiving node to receive the sensing reference signal (which can also be called an echo signal) reflected by a target (specifically, target 1 and target 2); after signal processing of the reflected sensing reference signal, node B and the server exchange the signal processing results to determine whether the sensing process is completed.

[0004] However, with the real-time changes in the actual scenario and sensing target, related cooperative sensing schemes may not be able to meet the sensing accuracy requirements. Summary of the Invention

[0005] To solve the related technical problems, embodiments of this application provide an information transmission method, apparatus, related device, and storage medium.

[0006] The technical solution of the embodiments of this application is implemented as follows:

[0007] Embodiments of this application provide an information transmission method, which is applied to a first node and includes:

[0008] Determine third information according to first information and second information, where the first information includes accuracy requirement information of a first service, the second information represents the frequency domain resources available to the first node, and the third information is used to indicate the frequency domain resources of an updated reference signal, and the reference signal is used to sense a target object associated with the first service;

[0009] Send the third information to the second node; wherein, the first node is used to measure the reference signal, and the second node is used to send the reference signal.

[0010] In the above solution, the third information includes at least one of the following:

[0011] The accuracy level associated with the first service;

[0012] The frequency domain resources of the updated reference signal;

[0013] Fourth information, where the fourth information is used to identify the reference signal.

[0014] In the above solution, determining the third information according to the first information and the second information includes:

[0015] Determine the third information according to the first information, the second information and the fifth information, where the fifth information includes at least one accuracy level associated with the first service and resource update related information corresponding to each accuracy level.

[0016] In the above solution, the resource update related information at least includes a signal-to-interference-plus-noise ratio (SINR) range; determining the third information according to the first information, the second information and the fifth information includes:

[0017] Measure the reference signal to obtain sixth information, where the sixth information includes the SINR of the reference signal;

[0018] Match the sixth information with the SINR range corresponding to each accuracy level in the fifth information to determine the accuracy level corresponding to the reference signal;

[0019] Determine the third information according to the determined accuracy level, the first information and the second information.

[0020] In the above solution, the method further includes:

[0021] Obtain seventh information, where the seventh information includes parameters corresponding to the first service;

[0022] Generate the fifth information according to the first information and the seventh information.

[0023] In the above solution, generating the fifth information according to the first information and the seventh information includes:

[0024] Obtain eighth information, where the eighth information characterizes the accuracy characteristics of the first node;

[0025] Generate the fifth information according to the first information, the seventh information, and the eighth information.

[0026] An embodiment of the present application further provides an information transmission method, which is applied to a second node and includes:

[0027] Send a reference signal, where the reference signal is used to sense a target object associated with a first service;

[0028] Receive third information sent by a first node, where the third information is used to indicate updated frequency-domain resources of the reference signal; wherein, the first node is used to measure the reference signal.

[0029] In the above solution, the third information includes at least one of the following:

[0030] A precision level associated with the first service;

[0031] Updated frequency-domain resources of the reference signal;

[0032] Fourth information, where the fourth information is used to identify the reference signal.

[0033] In the above solution, the method further includes:

[0034] Update the frequency-domain resources of the reference signal according to the third information;

[0035] Send the updated reference signal.

[0036] An embodiment of the present application further provides an information transmission device, which is disposed in a first node and includes:

[0037] A determination unit, configured to determine third information according to first information and second information, where the first information includes precision requirement information of a first service, the second information characterizes available frequency-domain resources of the first node, the third information is used to indicate updated frequency-domain resources of the reference signal, and the reference signal is used to sense a target object associated with the first service;

[0038] A first sending unit, configured to send the third information to a second node; wherein, the first node is used to measure the reference signal, and the second node is used to send the reference signal.

[0039] An embodiment of the present application further provides an information transmission device, which is disposed in a second node and includes:

[0040] A second sending unit, configured to send a reference signal, where the reference signal is used to sense a target object associated with a first service;

[0041] A receiving unit, configured to receive third information sent by a first node, where the third information is used to indicate updated reference signal frequency-domain resources; wherein, the first node is configured to measure the reference signal.

[0042] An embodiment of this application further provides a first node, including: a first processor and a first communication interface; wherein,

[0043] The first processor is configured to determine third information according to first information and second information, where the first information includes accuracy requirement information of a first service, the second information characterizes frequency-domain resources available to the first node, the third information is used to indicate updated frequency-domain resources of a reference signal, and the reference signal is used to sense a target object associated with the first service;

[0044] The first communication interface is configured to send the third information to a second node; wherein, the first node is configured to measure the reference signal, and the second node is configured to send the reference signal.

[0045] An embodiment of this application further provides a second node, including: a second processor and a second communication interface; wherein,

[0046] The second communication interface is configured to send a reference signal, where the reference signal is used to sense a target object associated with a first service; and receive third information sent by the first node, where the third information is used to indicate updated reference signal frequency-domain resources; wherein, the first node is configured to measure the reference signal.

[0047] An embodiment of this application further provides a first node, including: a first processor and a first memory for storing a computer program that can run on the processor,

[0048] Wherein, when the first processor is configured to run the computer program, it executes the steps of any of the methods on the first node side described above.

[0049] An embodiment of this application further provides a second node, including: a second processor and a second memory for storing a computer program that can run on the processor,

[0050] Wherein, when the second processor is configured to run the computer program, it executes the steps of any of the methods on the second node side described above.

[0051] An embodiment of this application further provides a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of any of the methods on the first node side described above, or implements the steps of any of the methods on the second node side described above.

[0052] The information transmission method, apparatus, related equipment, and storage medium provided by the embodiments of the present application. After the second node sends a reference signal, the first node determines third information according to first information and second information. The first information includes accuracy requirement information of a first service, the second information represents the frequency domain resources available to the first node, and the third information is used to indicate the frequency domain resources of the updated reference signal. The reference signal is used to sense a target object associated with the first service; the third information is sent to the second node. The technical solution provided by the embodiments of the present application enables, during the sensing process, the receiving node to feedback the frequency domain configuration information of the sensing reference signal to the sending node according to the available resources and sensing accuracy requirements, so that the sending node can update the frequency domain resources of the sensing reference signal; that is to say, the sensing node has the ability to flexibly adjust the frequency domain resources of the sensing reference signal. Thus, in the case where the actual scenario and the sensing target change, the sensing node can adjust the frequency domain resources of the reference signal to meet the collaborative sensing accuracy. Description of the Drawings

[0053] Figure 1 It is a schematic structural diagram of a cooperative sensing system;

[0054] Figure 2 It is a schematic flowchart of the first information transmission method according to the embodiments of the present application;

[0055] Figure 3 It is a schematic diagram of the accuracy characteristics of a node according to the embodiments of the present application;

[0056] Figure 4 It is a schematic flowchart of the second information transmission method according to the embodiments of the present application;

[0057] Figure 5 It is a schematic flowchart of the third information transmission method according to the embodiments of the present application;

[0058] Figure 6 It is a schematic flowchart of the method for configuring the frequency domain of the sensing reference signal in the application example of the present application;

[0059] Figure 7 It is a schematic structural diagram of the first information transmission apparatus according to the embodiments of the present application;

[0060] Figure 8 It is a schematic structural diagram of the second information transmission apparatus according to the embodiments of the present application;

[0061] Figure 9 It is a schematic structural diagram of the first node according to the embodiments of the present application;

[0062] Figure 10 It is a schematic structural diagram of the second node according to the embodiments of the present application;

[0063] Figure 11This is a schematic structural diagram of the information transmission system according to the embodiments of the present application. Detailed implementation manners

[0064] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0065] In the related art, the configuration of the sensing reference signal in the frequency domain is fixed. For example, in the 2.6 GHz frequency band, CSI-RS, DMRS, PRS, and SRS occupy fixed resource elements (REs) or resource block (RB) positions or bandwidths. In this case, the sensing node will use the sensing reference signal with a fixed bandwidth for sensing.

[0066] However, with the real-time changes of the scenario and the sensing target, the sensing node lacks the ability to flexibly configure the frequency domain resources of the sensing reference signal according to the accuracy requirements. That is to say, the related cooperative sensing schemes may not be able to meet the accuracy requirements.

[0067] Based on this, in various embodiments of the present application, in the scenario of cooperative sensing, the receiving node feeds back the frequency domain configuration information of the sensing reference signal to the sending node according to the sensing accuracy requirements and the available resources, so that the sending node can update the frequency domain resources occupied by the sensing reference signal. In this way, even if the actual scenario and the sensing target change, the sensing node can adjust the frequency domain distribution of the sensing reference signal to meet the accuracy requirements.

[0068] The embodiments of the present application provide an information transmission method, which is applied to a first node. As Figure 2 shown, the method includes:

[0069] Step 201: Determine third information according to first information and second information, where the first information includes accuracy requirement information of a first service, the second information represents the available frequency domain resources of the first node, and the third information is used to indicate the frequency domain resources of the updated reference signal, and the reference signal is used to sense a target object associated with the first service;

[0070] Step 202: Send the third information to a second node; where the first node is used to measure the reference signal, and the second node is used to send the reference signal.

[0071] In practical applications, the first node and the second node form a cooperation cluster (which can also be referred to as a sensing cooperation cluster). The first node can be referred to as a receiving node. Correspondingly, the second node can be referred to as a transmitting node, a sending node, etc. The embodiments of the present application do not limit the names of the first node and the second node, as long as their functions are realized. In addition, the first node may include a base station, a wireless access point, or a terminal, etc., and the second node may include a base station, a wireless access point, or a terminal, etc. For example, the first node and the second node are two adjacent base stations.

[0072] In practical applications, before step 201, when the first service (which can also be referred to as a sensing service) is triggered, first, the upper-layer network (such as a sensing server) can select at least two nodes to form a cooperation cluster, and designate the second node among the at least two nodes as a transmitting node for transmitting the reference signal. Correspondingly, the first node among the at least two nodes is used as a receiving node for measuring the reference signal. At the same time, clock synchronization and / or carrier synchronization are performed between the nodes. Secondly, the accuracy requirement information (i.e., the first information) and parameter information of the first service are obtained from the service requester and the obtained information is respectively sent to the first node and the second node. The parameter information may include an angle, a distance, a frequency, etc. In addition, the upper-layer network can also configure a reference signal (which can be understood as an initial reference signal) for the first node and the second node. The initial number of RBs or REs of the reference signal can be expressed as d0, such as 24. Among them, the reference signal may include a channel state information reference signal (CSI-RS, Channel State Information-Reference Signal), a demodulation reference signal (DMRS, DeModulation Reference Signal), a positioning reference signal (PRS, Positioning Reference Signal), a channel sounding reference signal (SRS, Sounding Reference Signal), etc.

[0073] Here, if the capabilities of the first node and the second node can meet the accuracy requirements of the first service, the upper-layer network can send the obtained information to the first node and the second node; if the capabilities of the first node and the second node cannot meet the accuracy requirements of the first service, the upper-layer network can reject the first service. Among them, the upper-layer network can receive the capability information actively reported by the node or determine the capability information of the node according to the node configuration information, so as to determine whether the capabilities of the first node and the second node can meet the accuracy requirements of the first service.

[0074] After the configuration is completed, the second node may send the reference signal to sense the target object associated with the first service; wherein, the second node may send the reference signal in a time-division manner, which is not limited in the embodiments of the present application.

[0075] Exemplarily, assume that the target objects associated with the first service are Target 1, Target 2, and Target 3, and the second node sends a set of beams {RS1, RS2, RS3} corresponding to the reference signals in an orthogonal time-division manner in different directions; where the number of RBs carried by the beam is d0.

[0076] Correspondingly, the first node may receive the reference signal reflected by the target object associated with the first service, and then determine the third information based on the received reference signal, its own capabilities, and the accuracy level of the first service.

[0077] Specifically, in one embodiment, the determining the third information according to the first information and the second information includes:

[0078] Determine the third information according to the first information, the second information, and the fifth information, where the fifth information includes at least one accuracy level associated with the first service and resource update-related information corresponding to each accuracy level.

[0079] In practical applications, before determining the third information, the first node may generate the fifth information for the first service; that is, for the first service, the first node may pre-configure the resource update information (also referred to as resource reconfiguration information) of the reference signal corresponding to different accuracy levels; where the resource update information may include the resource update method, and the resource update method can be understood as the method of adjusting the number of RBs or REs, specifically, it can be increasing, maintaining, or decreasing the number of RBs or REs; where the number of RBs or REs can be increased or decreased in a multiple or incremental manner.

[0080] Here, the first node may divide at least one accuracy level associated with the first service based on the first information, thereby generating the fifth information.

[0081] Based on this, in one embodiment, the method may further include:

[0082] Obtain the seventh information, where the seventh information includes the parameters corresponding to the first service;

[0083] Generate the fifth information according to the first information and the seventh information.

[0084] Among them, in actual application, the seventh information can be referred to as a perception parameter, which can specifically include an angle, a distance, a frequency, etc. The embodiments of the present application do not limit the content of the seventh information.

[0085] In actual application, the first node can obtain the seventh information from the upper-layer network; that is to say, when the capabilities of the first node can meet the first information, the first node can receive the seventh information sent by the upper-layer network.

[0086] Then, according to the first information and the seventh information, the first node can divide at least one accuracy level associated with the first service.

[0087] Specifically, in one embodiment, the generating the fifth information according to the first information and the seventh information includes:

[0088] Obtain an eighth information, where the eighth information characterizes the accuracy characteristics of the first node;

[0089] Generate the fifth information according to the first information, the seventh information, and the eighth information.

[0090] Among them, the eighth information can be obtained by testing the first node. For example, a test reference signal is sent to the first node to obtain the eighth information. The embodiments of the present application do not limit the method for obtaining the eighth information.

[0091] It should be noted that the accuracy characteristics of the first node are usually associated with the SINR of the reference signal and the sampling step of the perception algorithm; among them, the relationship between the perception accuracy A and the SINR can be expressed as:

[0092]

[0093] Among them, D represents the aperture, and λ represents the step.

[0094] It can be seen from formula (1) that when the value of SINR is small, the perception accuracy of the first node can converge to the statistical error mean (such as RMSE); when the value of SINR is large, the perception accuracy of the first node can converge to a value associated with the sampling step, such as 1 / 4 sampling step.

[0095] Exemplarily, assume that the parameter corresponding to the first service is an angle, the sampling step of the perception algorithm is 1°, and the accuracy requirement of the first service is 0.25°, as Figure 3As shown, the angle estimation error of the first node varies with the change of the SINR of the reference signal; wherein, the value range of the angle estimation error is from 0.25° to 40°.

[0096] In practical applications, during the process of generating the fifth information, the first node can determine a reference point according to the first information, the seventh information, and the eighth information; based on the determined reference point and a preset range, divide at least one accuracy level associated with the first service; then, for each accuracy level, generate corresponding resource update related information; wherein, the resource update related information may include the SINR range of the reference signal, the resource update method, and the update amount (which can also be referred to as the demand amount), and the update amount can be understood as the number or multiple of RBs or REs that need to be increased or decreased. For example, when the resource update method is to adjust the number of RBs or REs in a multiple manner, the update amount is the multiple by which the RBs or REs need to change. Another example is that when the resource update method is to adjust the number of RBs or REs in an incremental manner, the update amount is the number by which the RBs or REs need to change.

[0097] Exemplarily, assume that the parameter corresponding to the first service (i.e., the seventh information) is an angle, and the accuracy requirement of the first service (i.e., the first information) is 0.25°. Then, the first node combines Figure 3 the shown angle accuracy characteristics to be able to determine that the reference point is -25 dB, that is, the SINR corresponding to an angle of 0.25°; then, based on the determined reference point and a preset range (which can be set as needed, such as -3 dB), the accuracy can be divided into 5 accuracy levels L, namely L1, L2, L3, L4, and L5; then, for each accuracy level, the first node can configure the corresponding SINR range of the reference signal, the resource update method, and the update amount, so as to obtain the fifth information; wherein, the content of the fifth information is shown in Table 1:

[0098] Angle range (°) SINR (dB) L Resource update method Update amount (d) (1,10) [-31,-28) 5 Increase (multiple) {2,3,4} (0.25,1] [-28,-25) 4 Increase (increment) {1,2,…,23} 0.25 [-25,-15) 3 Remain unchanged 0 0.25 [-15,-12) 2 Decrease (increment) {1,2,…,11} 0.25 [-12,+∞) 1 Decrease (multiple) {2,3,4,6,8,12,24}

[0099] Table 1

[0100] It should be noted that during the process of generating the fifth information, the first node can preset a SINR threshold, such as -31 dB; when the SINR of the reference signal is less than the SINR threshold, it indicates that the target object associated with the first service is affected by noise or interference signals and thus cannot be accurately measured; in this case, the first node can consider that there is no such target object, and thus there is no need to feedback the resource update method and the update amount of the reference signal.

[0101] Exemplarily, for Table 1, when the SINR is less than -31 dB, the first node can determine that the target object associated with the first service is affected by noise or interference signals. Therefore, the first node does not generate the accuracy level, resource update method, and update amount corresponding to this SINR range.

[0102] In practical applications, after generating the fifth information, the first node can measure the received reference signal to determine how to update the reference signal, thereby determining the third information.

[0103] Specifically, in one embodiment, the resource update related information at least includes the SINR range; the determining of the third information according to the first information, the second information, and the fifth information includes:

[0104] Measure the reference signal to obtain the sixth information, where the sixth information includes the SINR of the reference signal;

[0105] Match the sixth information with the SINR range corresponding to each accuracy level in the fifth information to determine the accuracy level corresponding to the reference signal;

[0106] Determine the third information according to the determined accuracy level, the first information, and the second information.

[0107] In practical applications, by measuring the reference signal reflected by the target object associated with the first service, the first node can determine the sixth information and the fourth information, where the fourth information is used to identify the reference signal; specifically, the first node can filter the reference signal reflected by the target object associated with the first service by means of spatial filtering, target recognition association, etc., and then calculate the SINR of the reference signal, and at the same time, determine the index of the reference signal, that is, the fourth information.

[0108] Then, the first node matches the sixth information with the SINR range corresponding to each accuracy level in the fifth information, can determine the accuracy level corresponding to the reference signal, and further can determine the third information.

[0109] Exemplarily, after the first node receives the reference signal reflected by the target object (such as target 1) associated with the first service, it filters out the clutter interference or background noise of the reference signal through spatial filtering, and then calculates the angle of the target object (specifically 8.3°) and the SINR of the reference signal (specifically -27 dB). The first node determines the corresponding accuracy level (L = 4), resource update method (increasing the number of RBs or REs in an incremental manner), and update amount according to its available frequency domain resources and by matching the SINR of the reference signal with the SINR ranges corresponding to each accuracy level in Table 1; where the update amount d can be determined by the following formula:

[0110]

[0111] where SINR0 represents the SINR corresponding to the first information, and d0 represents the initial number of RBs or REs of the reference signal.

[0112] In practical applications, after determining the third information, the first node may send the third information to the second node so that the second node can update the frequency domain resources of the reference signal; where the third information can be sent through Radio Resource Control (RRC) signaling, or, alternatively, can also be sent through Downlink Control Information (DCI) signaling, or, alternatively, can also be sent through Medium Access Control (MAC) Control Element (CE) signaling, or, alternatively, can also be sent through the Xn interface. The embodiments of the present application do not limit the manner of sending the third information.

[0113] Where, in one embodiment, the third information may include at least one of the following:

[0114] The accuracy level associated with the first service;

[0115] The frequency domain resources of the updated reference signal;

[0116] Fourth information, where the fourth information is used to identify the reference signal.

[0117] Where, the accuracy level associated with the first service can be understood as the accuracy level corresponding to the reference signal; the frequency domain resources of the updated reference signal can be understood as the update amount corresponding to the accuracy level, that is, the quantity or multiple by which the frequency domain resources of the reference signal need to change, such as the number or multiple of RBs or REs that need to be increased or decreased.

[0118] It should be noted that the first node can send the accuracy level associated with the first service to the second node, so that the second node can subsequently determine the corresponding resource reallocation method based on the accuracy level, thereby updating the frequency domain resources of the reference signal. This is because: before sending the reference signal, the first node and the second node will perform information interaction to ensure that both can generate the same fifth information; in this case, the first node can send the accuracy level associated with the first service instead of the resource reallocation method, so that the number of bits occupied during information transmission can be reduced, thus saving transmission resources.

[0119] Correspondingly, an embodiment of the present application provides an information transmission method, which is applied to the second node, as Figure 4 shown, the method includes:

[0120] Step 401: Send a reference signal, where the reference signal is used to sense a target object associated with the first service;

[0121] Step 402: Receive the third information sent by the first node, where the third information is used to indicate the updated frequency domain resources of the reference signal; wherein, the first node is used to measure the reference signal.

[0122] In actual application, before step 401, the second node can receive the first information, the seventh information, and the eighth information sent by the first node, and generate the fifth information; wherein, the fifth information can be generated in the same way as the first node.

[0123] Here, after generating the fifth information, the second node can adjust the frequency domain resources of the reference signal according to the third information.

[0124] Based on this, in an embodiment, the method may further include:

[0125] Update the frequency domain resources of the reference signal according to the third information;

[0126] Send the updated reference signal.

[0127] In actual application, according to the fifth information and the accuracy level associated with the first service in the third information, the second node can determine the resource reallocation method of the reference signal, and then update the frequency domain resources of the reference signal in combination with the updated frequency domain resources of the reference signal in the third information.

[0128] Exemplarily, assume that the number of RBs of the reference signal is d0, the number of RBs of the updated reference signal is d, the accuracy level associated with the first service is L = 4, and the second node can determine, according to the fifth information and the accuracy level, that the resource reallocation method is to increase the number of RBs in an incremental manner; update the frequency-domain resources of the reference signal according to the resource reallocation method and the number of RBs of the updated reference signal; wherein, the number of RBs of the updated reference signal can be expressed as d0 + d.

[0129] After updating the frequency-domain resources of the reference signal, the second node may send the updated reference signal; correspondingly, the first node receives the updated reference signal reflected by the target object associated with the first service, and determines whether to update the frequency-domain resources of the reference signal based on the received reference signal until the first service meets the termination condition and the cooperative sensing process ends; wherein, the termination condition may include cancellation of service requirements, exceeding the expected time, node resource saturation, or completion of the first service, etc., and the embodiments of the present application do not limit this.

[0130] The embodiments of the present application also provide an information transmission method, as Figure 5 shown, the method includes:

[0131] Step 501: The second node sends a reference signal;

[0132] wherein, the reference signal is used to sense the target object associated with the first service,

[0133] Step 502: The first node determines the third information according to the first information and the second information;

[0134] wherein, the first information includes the accuracy requirement information of the first service, the second information characterizes the available frequency-domain resources of the first node, the third information is used to indicate the frequency-domain resources of the updated reference signal, and the first node is used to measure the reference signal;

[0135] Step 503: The first node sends the third information to the second node.

[0136] Here, it should be noted that: The specific processing processes of the first node and the second node have been described in detail above and will not be repeated here.

[0137] In the information transmission method provided by the embodiment of the present application, after the second node sends a reference signal, the first node determines the third information according to the first information and the second information. The first information includes the accuracy requirement information of the first service, the second information characterizes the frequency domain resources available to the first node, the third information is used to indicate the frequency domain resources of the updated reference signal, the reference signal is used to sense the target object associated with the first service, and the first node is used to measure the reference signal; and sends the third information to the second node. In the technical solution provided by the embodiment of the present application, during the sensing process, the receiving node feeds back the frequency domain configuration information of the sensing reference signal to the sending node according to the available resources and the sensing accuracy requirement, so that the sending node can update the frequency domain resources of the sensing reference signal; that is to say, the sensing node has the ability to flexibly adjust the frequency domain resources of the sensing reference signal. In this way, in the case where the actual scenario and the sensing target change, the sensing node can adjust the frequency domain resources of the reference signal to meet the collaborative sensing accuracy.

[0138] The following further describes the present application in detail with application examples.

[0139] In the application example of the present application, a frequency domain configuration scheme for collaborative sensing reference signals is proposed. Specifically, the receiving node proposes a frequency domain configuration suggestion for the sensing reference signal according to its own capabilities and sensing accuracy requirements, so that the sending node can configure and update the frequency domain resources occupied by the sensing reference signal; where the frequency domain resources refer to the RBs or REs used to carry the sensing reference signal.

[0140] In actual application, during the process of collaborative sensing, the frequency domain configuration scheme of the sensing reference signal, such as Figure 6 shown, includes the following steps:

[0141] Step 601: The upper-layer network (such as a sensing server) receives a sensing service request sent by a service requester, determines that the sensing service is triggered, and then executes step 602;

[0142] Wherein, the sensing service request includes the parameters (i.e., the above-mentioned seventh information), accuracy requirements (i.e., the above-mentioned first information) specified by the sensing service (i.e., the above-mentioned first service), and the sensing area range.

[0143] Step 602: The upper-layer network designates nodes to form a collaborative cluster;

[0144] In practical applications, after the upper-layer network designates a node, clock synchronization and carrier synchronization are performed between the nodes; then, the parameters and accuracy requirements specified by the sensing service are obtained, and the obtained information is sent to each node within the cooperation cluster. The parameters specified by the sensing service include at least angle, distance, or Doppler frequency; then, the initial sensing reference signal is configured and each node within the cooperation cluster is notified. The number of RBs or REs used for the initial sensing reference signal is d0.

[0145] In addition, the upper-layer network will also designate a sensing node as the transmitting node (i.e., the second node mentioned above), designate the remaining nodes within the cooperation cluster as receiving nodes (i.e., the first node mentioned above), and can designate a node or a sensing server to aggregate the parameters obtained by node sensing.

[0146] Exemplarily, after the sensing server designates two adjacent cell base stations (nodes A and B respectively) to form a cooperation cluster according to the sensing area range, the parameters (angle) and accuracy requirements (0.25°) specified by the sensing service are obtained. When the accuracy requirements can be met by the capabilities of nodes A and B, the sensing server sends the parameters and accuracy requirements specified by the sensing service to nodes A and B, and sends the configured initial sensing reference signal to nodes A and B; among them, the number of RBs used for the initial sensing reference signal is d0 = 24. In addition, since the sensing area range is the 120° sector covered by node A, the sensing server designates node A as the transmitting node and node B as the receiving node.

[0147] Step 603: The transmitting node and the receiving node agree on resource reallocation operations;

[0148] Specifically, the transmitting node and the receiving node respectively divide the sensing accuracy into L levels according to the parameters and accuracy requirements specified by the sensing service, and agree on the frequency-domain resource reallocation method of the sensing reference signal corresponding to different levels (i.e., the fifth piece of information mentioned above). Among them, resource reallocation refers to adjusting the number of RBs or REs, specifically including increasing, maintaining, and decreasing frequency-domain resources. The expressions for increasing and decreasing frequency-domain resources include increments and multiples.

[0149] Here, the sensing accuracy is related to SINR and the sampling step size of the signal processing algorithm. The transmitting node and the receiving node can set a SINR threshold. When the SINR is less than the preset threshold, it is considered that there is no target in the space, that is, the target is affected by interference and cannot be accurately measured. Therefore, no resource reallocation operation is required.

[0150] Exemplarily, as shown in Table 1, the transmitting node and the receiving node divide the sensing accuracy into five levels L = {1, 2, 3, 4, 5} according to the parameters and accuracy requirements 0.25° specified by the sensing service, and agree on the frequency-domain resource reallocation method of the sensing reference signal within different levels.

[0151] Step 604: The transmitting node transmits the sensing reference signal (i.e., the above-mentioned reference signal).

[0152] Among them, the transmitting node can transmit a set of initial sensing reference signals in an orthogonal manner, such as {RS1, RS2, RS3}.

[0153] Step 605: After the receiving node receives the sensing reference signal reflected by the target, it calculates the SINR of the sensing service (i.e., the above-mentioned sixth piece of information).

[0154] In practical applications, after the receiving node receives the sensing reference signal reflected by the target, through signal detection and processing, it calculates the SINR value of the sensing reference signal and determines the index of the sensing reference signal covering the target (i.e., the above-mentioned fourth piece of information), and then executes Step 606.

[0155] Exemplarily, after the receiving node receives the sensing reference signals reflected by three targets (Target 1, Target 2, and Target 3 respectively), it filters out clutter interference and background noise through methods such as spatial filtering and target recognition association, and then calculates the angles of the targets {8.3°, -20.1°, 47.8°} and the SINR values of the sensing reference signals {-27dB, -20dB, -12dB}, as well as the initial sensing reference signal indexes of the targets.

[0156] Step 606: The receiving node determines whether the sensing service meets the end condition.

[0157] Here, if the sensing service meets the end condition, the current process ends; otherwise, Step 607 is executed.

[0158] Among them, the end conditions include: cancellation of service requirements, service exceeding the expected time, node resource saturation, completion of the sensing service, etc.

[0159] Step 607: The receiving node determines whether the frequency-domain resources of the current sensing reference signal need to be increased.

[0160] Among them, if the frequency-domain resources of the sensing reference signal need to be increased, Step 608 is executed; if the frequency-domain resources of the sensing reference signal do not need to be increased, Step 609 is executed.

[0161] Specifically, when the SINR of the sensing service is greater than the SINR threshold, the receiving node determines the accuracy level L corresponding to the current SINR according to the agreed resource reallocation operation, and further obtains the frequency-domain resource reallocation method, that is, the method of changing the frequency-domain resources of the sensing reference signal.

[0162] Exemplarily, the receiving node determines the corresponding precision level L value {L = 4, L = 3, L = 1} according to the SINR value, and further obtains the frequency-domain resource reallocation method of the sensing reference signal {increasing the number of RBs (increment), the number of RBs remains unchanged, decreasing the number of RBs (multiple)}.

[0163] Step 608: The receiving node feeds back the operation and indication information for increasing resources (i.e., the above-mentioned third information);

[0164] Here, in the case of determining that the frequency-domain resources of the sensing reference signal need to be increased, the receiving node determines the required quantity d of the frequency-domain resource reallocation based on its own available frequency-domain resources (i.e., the above-mentioned second information), the precision requirement, and the precision level; where the required quantity is defined as the number or multiple of RBs or REs that need to be increased. When the resource reallocation method uses an incremental expression, the required quantity is the number of RBs or REs that need to be increased, that is, the number of RBs or REs of the updated reference signal is d0 + d. When the resource reallocation method uses a multiple expression, the required quantity is the multiple by which the number of RBs or REs needs to be increased, that is, the number of RBs or REs of the updated reference signal is d0 * d.

[0165] Exemplarily, when the precision requirement is 0.25°, and the available resources of the receiving node are 272 RBs, in combination with the angle precision characteristic, the receiving node can determine the corresponding SINR0 as [-25, -15) and the precision level as L = 3. In this case, for target 1, L = 4 means that the number of RBs needs to be increased in an incremental manner, and the required quantity d can be calculated as 15 through formula (2), that is, the number of RBs that need to be increased; where SINR0 = -25 dB, SINR = -27 dB, therefore, the value range of the required quantity can be set as [15, 20] according to the need.

[0166] Then, the receiving node feeds back the sensing reference signal index, the L value, and the required quantity d to the sending node. Exemplarily, the receiving node can send {(RS1, L = 4, [15, 20]).

[0167] Step 609: The receiving node feeds back the operation and indication information for reducing or maintaining resources;

[0168] In the case of determining that the frequency-domain resources of the sensing reference signal need to be reduced, the receiving node determines the required quantity d of the frequency-domain resource reallocation based on its own available frequency-domain resources, the precision requirement, and the precision level; where the required quantity is defined as the number or multiple of RBs or REs that need to be reduced. When the resource reallocation method uses an incremental expression, the required quantity is the number of RBs or REs that need to be reduced, that is, the number of RBs or REs of the updated reference signal is d0 - d. When the resource reallocation method uses a multiple expression, the required quantity is the multiple by which the number of RBs or REs needs to be reduced, that is, the number of RBs or REs of the updated reference signal is d0 / d.

[0169] Exemplarily, when the accuracy requirement is 0.25°, and the available resources of the receiving node are 272 RBs, in combination with the angle accuracy characteristic, the receiving node can determine the corresponding SINR0 to be [-25, -15) and the accuracy level to be L = 3. In this case, for Target 3, L = 1 indicates that the number of RBs needs to be reduced in a multiple manner. The receiving node can calculate the required quantity d to be 2 through the following formula, that is, the multiple that needs to change; where, SINR0 = -15 dB, SINR = -12 dB; the formula can be expressed as:

[0170]

[0171] For Target 3, the number of RBs is reduced in a multiple manner. Therefore, the receiving node does not need to transmit the changed number of RBs, but transmits the changed multiple. After determining the required quantity d, in combination with the available resources (272 RBs) of the receiving node, the receiving node can set the value range of the required quantity to [2, 4].

[0172] In addition, when it is determined to maintain the frequency-domain resources of the current sensing reference signal, the required quantity d for frequency-domain resource reallocation is 0.

[0173] Exemplarily, when the accuracy requirement is 0.25°, and the available resources of the receiving node are 272 RBs, in combination with the angle accuracy characteristic, the receiving node can determine the corresponding SINR0 to be [-25, -15) and the accuracy level to be L = 3. In this case, for Target 2, L = 3 indicates that the number of RBs needs to be maintained. Therefore, the receiving node can determine that the required quantity is 0.

[0174] Then, the receiving node feeds back the sensing reference signal index, the L value, and the required quantity d to the sending node. Among them, when maintaining the resources of the sensing reference signal, the receiving node can not feed back the required quantity d. Exemplarily, for Target 2 and Target 3, the receiving node can send {(RS2, L = 3), (RS3, L = 1, (2, 4)}.

[0175] Step 610: The sending node reconfigures the sensing reference signal resources according to the feedback information and notifies the receiving node of the configuration information.

[0176] In actual application, the sending node reconfigures the number of RBs or REs of the sensing reference signal according to the L value, the required quantity d fed back by the receiving node, and its own available frequency-domain resources, and sends the reconfigured sensing reference signal to the sending node.

[0177] Exemplarily, based on the L value, demand quantity d feedback by the receiving node and its own available frequency domain resources, the sending node can determine that the number of reconfigured RBs corresponding to the target is {RS1: 44, RS2: 24, RS3: 6}. Then, based on the number of reconfigured RBs, it reconfigures the frequency domain resources of the sensing reference signal and sends the reconfigured sensing reference signal to the receiving node.

[0178] In the application example of this application, by dividing the sensing accuracy into levels and binding them to the configuration method of the frequency domain resources of the sensing reference signal, the sensing node can flexibly adjust the frequency domain resources of the sensing reference signal during the sensing process, so as to meet the sensing accuracy requirements while using appropriate frequency domain resource overhead of the sensing reference signal.

[0179] To implement the method of the embodiments of this application, the embodiments of this application also provide an information transmission device, which is set on the first node, as Figure 7 shown. This device includes:

[0180] A determination unit 701, configured to determine third information according to first information and second information, where the first information includes accuracy requirement information of a first service, the second information represents the available frequency domain resources of the first node, and the third information is used to indicate the frequency domain resources of the updated reference signal, and the reference signal is used to sense a target object associated with the first service;

[0181] A first sending unit 702, configured to send the third information to a second node; where the first node is used to measure the reference signal, and the second node is used to send the reference signal.

[0182] Wherein, in one embodiment, the determination unit 701 is configured to determine the third information according to the first information, the second information and fifth information, and the fifth information includes at least one accuracy level associated with the first service and resource update related information corresponding to each accuracy level.

[0183] In one embodiment, the resource update related information at least includes an SINR range, and the determination unit 701 is configured to:

[0184] Measure the reference signal to obtain sixth information, where the sixth information includes the SINR of the reference signal;

[0185] Match the sixth information with the SINR range corresponding to each accuracy level in the fifth information to determine the accuracy level corresponding to the reference signal;

[0186] Determine the third information according to the determined accuracy level, the first information and the second information.

[0187] In one embodiment, the determining unit 701 is further configured to:

[0188] Obtain seventh information, where the seventh information includes parameters corresponding to the first service;

[0189] Generate the fifth information according to the first information and the seventh information.

[0190] In one embodiment, the determining unit 701 is configured to:

[0191] Obtain eighth information, where the eighth information characterizes the precision characteristics of the first node;

[0192] Generate the fifth information according to the first information, the seventh information, and the eighth information.

[0193] In actual application, the determining unit 701 may be implemented by a communication interface in the information transmission device in combination with a processor, and the first sending unit 702 may be implemented by a communication interface in the information transmission device.

[0194] To implement the method of the embodiments of the present application, the embodiments of the present application further provide an information transmission device, which is disposed on a second node, as Figure 8 shown, and the device includes:

[0195] A second sending unit 801, configured to send a reference signal, where the reference signal is used to sense a target object associated with the first service;

[0196] A receiving unit 802, configured to receive third information sent by a first node, where the third information is used to indicate updated reference signal frequency domain resources; wherein, the first node is used to measure the reference signal.

[0197] In one embodiment, the second sending unit 801 is further configured to:

[0198] Update the frequency domain resources of the reference signal according to the third information;

[0199] Send the updated reference signal.

[0200] In actual application, the second sending unit 801 may be implemented by a communication interface in the information transmission device in combination with a processor, and the receiving unit 802 may be implemented by a communication interface in the information transmission device.

[0201] It should be noted that: when the information transmission device provided in the above embodiments performs information transmission, only the division of the above program modules is used for illustration. In actual applications, the above processing can be allocated to different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the above-described processing. In addition, the information transmission device provided in the above embodiments and the embodiments of the information transmission method belong to the same concept. For the specific implementation process, please refer to the method embodiments and will not be elaborated here.

[0202] Based on the hardware implementation of the above program modules, and in order to implement the method on the terminal side of the embodiments of the present application, the embodiments of the present application further provide a first node, as Figure 9 shown. The first node 900 includes:

[0203] A first communication interface 901 capable of performing information interaction with a second node;

[0204] A first processor 902, connected to the first communication interface 901 to implement information interaction with the second node, and when running a computer program, execute the method provided by one or more technical solutions on the side of the first node;

[0205] A first memory 903, on which the computer program is stored.

[0206] Specifically, the first processor 902 is configured to determine third information according to first information and second information, where the first information includes accuracy requirement information of a first service, the second information represents frequency domain resources available to the first node, and the third information is used to indicate the frequency domain resources of an updated reference signal, and the reference signal is used to sense a target object associated with the first service;

[0207] The first communication interface 901 is configured to send the third information to the second node; wherein, the first node is used to measure the reference signal, and the second node is used to send the reference signal.

[0208] Wherein, in one embodiment, the first processor 902 is configured to determine the third information according to the first information, the second information and fifth information, and the fifth information includes at least one accuracy level associated with the first service and resource update related information corresponding to each accuracy level.

[0209] In one embodiment, the resource update related information at least includes an SINR range, and the first processor 902 is configured to:

[0210] Measure the reference signal to obtain sixth information, where the sixth information includes the SINR of the reference signal;

[0211] Match the SINR ranges corresponding to each accuracy level in the sixth information and the fifth information to determine the accuracy level corresponding to the reference signal;

[0212] Determine the third information according to the determined accuracy level, the first information, and the second information.

[0213] In one embodiment, the first processor 902 is further configured to:

[0214] Obtain seventh information through the first communication interface 901, where the seventh information includes parameters corresponding to the first service;

[0215] Generate the fifth information according to the first information and the seventh information.

[0216] In one embodiment, the first processor 902 is configured to:

[0217] Obtain eighth information, where the eighth information characterizes the accuracy characteristics of the first node;

[0218] Generate the fifth information according to the first information, the seventh information, and the eighth information.

[0219] It should be noted that: The specific processing procedures of the first communication interface 901 and the first processor 902 can be understood with reference to the above method.

[0220] Of course, in actual application, each component in the first node 900 is coupled together through the bus system 904. It can be understood that the bus system 904 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 904 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, in Figure 9 all kinds of buses are labeled as the bus system 904.

[0221] The first memory 903 in the embodiment of the present application is used to store various types of data to support the operation of the first node 900. Examples of these data include: any computer program for operating on the first node 900.

[0222] The method disclosed in the embodiments of the present application can be applied to or implemented by the first processor 902. The first processor 902 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method can be completed by the integrated logic circuit of the hardware in the first processor 902 or the instructions in the form of software. The above-mentioned first processor 902 may be a general-purpose processor, DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 902 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. Combining the steps of the method disclosed in the embodiments of the present application, it can be directly embodied as being completed by the hardware decoding processor, or completed by a combination of the hardware and software modules in the decoding processor. The software module may be located in a storage medium, and this storage medium is located in the first memory 703. The first processor 902 reads the information in the first memory 903 and combines its hardware to complete the steps of the foregoing method.

[0223] In an exemplary embodiment, the first node 900 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the foregoing method.

[0224] Based on the hardware implementation of the above program module, and in order to implement the method on the second node side in the embodiments of the present application, the embodiments of the present application also provide a second node, as Figure 10 shown. The second node 1000 includes:

[0225] A second communication interface 1001 capable of interacting with the first node for information;

[0226] A second processor 1002 connected to the second communication interface 1001 to achieve information interaction with the first node. When running a computer program, it is used to execute the method provided by one or more technical solutions on the second node side;

[0227] A second memory 1003, where the computer program is stored on the second memory 1003.

[0228] Specifically, the second communication interface 1001 is used to send a reference signal for sensing a target object associated with the first service, and receive the third information sent by the first node, where the third information is used to indicate the updated reference signal frequency domain resource; wherein, the first node is used to measure the reference signal.

[0229] In one embodiment, the second processor 1002 is configured to:

[0230] Update the frequency-domain resources of the reference signal according to the third information;

[0231] Send the updated reference signal through the second communication interface 1001.

[0232] It should be noted that: The specific processing procedures of the second communication interface 1001 and the second processor 1002 can be understood with reference to the above method.

[0233] Of course, in actual application, each component in the second node 1000 is coupled together through the bus system 1004. It can be understood that the bus system 1004 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1004 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear illustration, in Figure 10 all kinds of buses are labeled as the bus system 1004.

[0234] The second memory 1003 in the embodiment of the present application is used to store various types of data to support the operation of the second node 1000. Examples of these data include: any computer program for operating on the second node 1000.

[0235] The method disclosed in the above embodiment of the present application can be applied to the second processor 1002 or implemented by the second processor 1002. The second processor 1002 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit in the hardware of the second processor 1002 or by instructions in the form of software. The above-mentioned second processor 1002 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 1002 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. Combining the steps of the method disclosed in the embodiments of the present application, it can be directly embodied as being executed and completed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and this storage medium is located in the second memory 1003. The second processor 1002 reads the information in the second memory 1003 and combines its hardware to complete the steps of the foregoing method.

[0236] In an exemplary embodiment, the second node 1000 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the foregoing method.

[0237] It can be understood that the memories (the first memory 903 and the second memory 1003) in the embodiments of the present application can be volatile memories or non-volatile memories, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory), an electrically erasable programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), a ferromagnetic random access memory (FRAM, ferromagnetic random access memory), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM, Compact Disc Read-Only Memory); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as a static random access memory (SRAM, Static Random Access Memory), a synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), a dynamic random access memory (DRAM, Dynamic Random Access Memory), a synchronous dynamic random access memory (SDRAM, Synchronous Dynamic Random Access Memory), a double data rate synchronous dynamic random access memory (DDR SDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), an enhanced synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), a sync link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and a direct rambus random access memory (DRRAM, Direct Rambus Random Access Memory).The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0238] To implement the method provided by the embodiments of the present application, the embodiments of the present application also provide an information transmission system, as Figure 11 shown, the system includes: a first node 1101 and a second node 1102.

[0239] Here, it should be noted that: the specific processing procedures of the first node 1101 and the second node 1102 have been described in detail above and will not be elaborated here.

[0240] In an exemplary embodiment, the embodiments of the present application also provide a storage medium, namely a computer storage medium, specifically a computer-readable storage medium. For example, it includes a first memory 903 storing a computer program, and the above computer program can be executed by a first processor 902 of a first node 900 to complete the steps of the method on the first node side described above. Another example is a second memory 1003 storing a computer program, and the above computer program can be executed by a second processor 1002 of a second node 1000 to complete the steps of the method on the second node side described above. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0241] It should be noted that: "first", "second", etc. are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence.

[0242] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0243] The above is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application.

Claims

1. An information transmission method, characterized in that, Applied to the first node, including: Determine third information according to first information and second information, where the first information includes accuracy requirement information of a first service, the second information characterizes the frequency domain resources available to the first node, and the third information is used to indicate the frequency domain resources of an updated reference signal, and the reference signal is used to sense a target object associated with the first service; Send the third information to a second node; wherein, the first node is used to measure the reference signal, and the second node is used to send the reference signal.

2. The method according to claim 1, wherein The third information includes at least one of the following: An accuracy level associated with the first service; The frequency domain resources of the updated reference signal; Fourth information, where the fourth information is used to identify the reference signal.

3. The method according to claim 1, wherein The determining the third information according to the first information and the second information includes: Determine the third information according to the first information, the second information and fifth information, where the fifth information includes at least one accuracy level associated with the first service and resource update related information corresponding to each accuracy level.

4. The method according to claim 3, wherein The resource update related information at least includes a signal-to-interference-plus-noise ratio (SINR) range; the determining the third information according to the first information, the second information and the fifth information includes: Measure the reference signal to obtain sixth information, where the sixth information includes the SINR of the reference signal; Match the sixth information with the SINR range corresponding to each accuracy level in the fifth information to determine the accuracy level corresponding to the reference signal; Determine the third information according to the determined accuracy level, the first information and the second information.

5. The method according to claim 3, characterized in that The method further includes: Obtain seventh information, where the seventh information includes parameters corresponding to the first service; Generate the fifth information according to the first information and the seventh information.

6. The method according to claim 5, characterized in that The generating the fifth information according to the first information and the seventh information includes: Obtain eighth information, where the eighth information characterizes the accuracy characteristics of the first node; Generate the fifth information according to the first information, the seventh information and the eighth information.

7. An information transmission method, characterized in that, Applied to the second node, including: Send a reference signal, where the reference signal is used to sense a target object associated with a first service; Receive third information sent by the first node, where the third information is used to indicate the frequency domain resources of an updated reference signal; wherein, the first node is used to measure the reference signal.

8. The method according to claim 7, wherein The third information includes at least one of the following: An accuracy level associated with the first service; The frequency domain resources of the updated reference signal; Fourth information, where the fourth information is used to identify the reference signal.

9. The method according to claim 7, wherein The method further includes: Update the frequency domain resources of the reference signal according to the third information; Send the updated reference signal.

10. An information transmission device, characterized in that, Disposed in the first node, including: A determination unit, configured to determine third information according to first information and second information, where the first information includes accuracy requirement information of a first service, the second information characterizes frequency-domain resources available to the first node, and the third information is used to indicate the frequency-domain resources of an updated reference signal, and the reference signal is used to sense a target object associated with the first service; A first sending unit, configured to send the third information to a second node; where the first node is configured to measure the reference signal, and the second node is configured to send the reference signal.

11. An information transmission device, characterized in that, It is disposed on the second node and includes: A second sending unit, configured to send a reference signal, where the reference signal is used to sense a target object associated with a first service; A receiving unit, configured to receive the third information sent by the first node, where the third information is used to indicate the frequency-domain resources of an updated reference signal; where the first node is configured to measure the reference signal.

12. A first node, characterized in that, It includes: A first processor and a first communication interface; where the first processor is configured to determine third information according to first information and second information, where the first information includes accuracy requirement information of a first service, the second information characterizes frequency-domain resources available to the first node, and the third information is used to indicate the frequency-domain resources of an updated reference signal, and the reference signal is used to sense a target object associated with the first service; the first communication interface is configured to send the third information to a second node; where the first node is configured to measure the reference signal, and the second node is configured to send the reference signal.

13. A second node, characterized in that, It includes: A second processor and a second communication interface; where the second communication interface is configured to send a reference signal, where the reference signal is used to sense a target object associated with a first service; and receive the third information sent by the first node, where the third information is used to indicate the frequency-domain resources of an updated reference signal; where the first node is configured to measure the reference signal.

14. A first node, characterized in that, It includes: A first processor and a first memory for storing a computer program that can run on the processor, where when the first processor is configured to run the computer program, it executes the steps of the method according to any one of claims 1 to 6.

15. A second node, characterized in that, It includes: A second processor and a second memory for storing a computer program that can run on the processor, where when the second processor is configured to run the computer program, it executes the steps of the method according to any one of claims 7 to 9.

16. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method according to any one of claims 1 to 6, or implements the steps of the method according to any one of claims 7 to 9.

Images