A communication method and related apparatus

Abstract

The application relates to the technical field of wireless communication, in particular to a communication method and related devices. The method comprises: determining first scattering characteristic information. The first scattering characteristic information is used to represent the reflection characteristic of a sensing environment on a sensing signal. The first scattering characteristic information is transmitted. The first scattering characteristic information is used to determine a first environment reconstruction result. The first environment reconstruction result can comprise at least one of the first scattering characteristic information or an environment reflection parameter reconstructed based on the first scattering characteristic information. The first environment reconstruction result can also comprise at least one of first space characteristic information or a space structure parameter reconstructed based on the first space characteristic information. Here, the first space characteristic information can be used to represent the space geometric structure characteristic of the sensing environment. The method provided by the application can improve the effectiveness and practicability of the sensing result in communication performance optimization.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a communication method and related apparatus. Background Technology

[0002] With the continuous evolution of communication technology, a new research direction has been proposed: using sensing results to optimize the communication performance of wireless communication networks. For example, in integrated sensing and communication (ISAC) networks, environmental reconstruction can be performed based on sensing results to obtain an environmental map, and then channel state prediction and other processing can be performed based on the environmental map to improve communication performance.

[0003] Existing sensing results mainly include spatial feature information characterizing the spatial geometry of the sensing environment, such as scattering point information corresponding to the sensing signal (which may include the three-dimensional coordinates, angle information, path power, etc. of the scattering point) or polygon information corresponding to the sensing signal (such as the center coordinates and boundary point coordinates of the polygon). The environment reconstruction results obtained based on existing sensing results can only reflect the spatial geometry of obstacles such as buildings within the sensing environment. While they can play a significant role in channel state prediction, their effectiveness in beamforming, beam tracking, and base station deployment is limited. Therefore, how to further improve the effectiveness of sensing results in communication performance optimization has become one of the current research hotspots. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a communication method and related apparatus that can enhance the effectiveness and practicality of sensing results in communication performance optimization.

[0005] The following sections introduce this application from multiple perspectives. It is easy to understand that the implementation methods of these multiple aspects can be referenced from each other.

[0006] In a first aspect, embodiments of this application provide a communication method. This method is applicable to a first device or a device within the first device responsible for sensing functions (such as modules, communication modules, circuits, processors, chips, or chip systems within the first device). Alternatively, the method is applicable to logic nodes, logic modules, or software capable of implementing all or part of the functions of the first device. The following description uses the application of this method to a first device as an example.

[0007] The method includes: a first device determining first scattering feature information. The first scattering feature information is used to characterize the reflection characteristics of the sensing environment to the sensing signal; the first device sending the first scattering feature information to a second device, wherein the first scattering feature information can be used to determine a first environment reconstruction result. Here, the first environment reconstruction result includes at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information, and at least one of first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information. Here, the first spatial feature information can be used to characterize the spatial geometric structure characteristics of the sensing environment.

[0008] In the above implementation, the first device can provide the second device with a novel sensing result different from spatial feature information, namely, first scattering feature information, thereby enabling the second device to determine a more informative first environment reconstruction result. This first environment reconstruction result includes at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information, and at least one of the first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information. Since the first scattering feature information can effectively reflect the impact of the sensing environment on the transmission of wireless signals, and the first spatial feature information can reflect the spatial geometric characteristics of the wireless signal transmission environment, this first environment reconstruction result can not only be used for channel state prediction, which helps optimize communication performance, but also for processes such as beamforming, beam tracking, and base station deployment, which also help optimize communication performance. Therefore, using the communication method provided in this application can improve the effectiveness of the sensing result in optimizing communication performance.

[0009] In conjunction with the first aspect, in one possible implementation, the first perception reconstruction result can be used for communication performance optimization or positioning enhancement. Here, the enhancement effect of the first perception reconstruction result on positioning is added, which can further enhance the application potential of the perception result.

[0010] In conjunction with the first aspect, in one possible implementation, the first scattering feature information is obtained based on measurements of the first sensing signal, and the first polygon is reconstructed from the N1 first scattering points corresponding to the first sensing signal. Here, N1 is a positive integer greater than or equal to 2. It can be understood that the N1 first scattering points can be all scattering points corresponding to the first sensing signal, or only a portion of the scattering points corresponding to the first sensing signal. The first scattering feature information may include the first scattering feature data corresponding to the first polygon, and at least one of the following: the first signal frequency of the first sensing signal or the main beam direction of the first polygon.

[0011] In the above implementation, using the scattering feature data corresponding to the polygon as the scattering feature information can reduce the amount of scattering feature information data, thereby reducing the transmission overhead caused by the scattering feature information.

[0012] In conjunction with the first aspect, in one possible implementation, the first scattering feature data may include the first signal reflection type corresponding to N1 first scattering points and / or the first reflection loss parameter corresponding to N1 first scattering points.

[0013] Optionally, the signal reflection types involved in this application mainly refer to the reflection mode of the sensed signal at the scattering point. The signal reflection types provided in this application include, but are not limited to, specular reflection and diffuse reflection.

[0014] In conjunction with the first aspect, in one possible implementation, the first reflection loss parameter may include at least one of the following: the average reflection loss of N1 first scattering points or the reflection loss range of N1 first scattering points.

[0015] In the above implementation, using the average reflection loss or the reflection loss range as the reflection loss parameter can further reduce the transmission overhead caused by scattering characteristic information.

[0016] In conjunction with the first aspect, in one possible implementation, the lower limit of the reflection loss range of the N1 first scattering points is a first reflection loss threshold, and the upper limit is a second reflection loss threshold. Here, the first reflection loss threshold is the x-th percentile of the N1 first reflection loss values ​​corresponding to the N1 first scattering points, and the second reflection loss threshold is the y-th percentile of the N1 first reflection loss values. Both x and y are greater than 0 and less than 1, and x is less than y. Alternatively, the first reflection loss threshold is the minimum reflection loss value among the N1 first reflection loss values ​​corresponding to the N1 first scattering points, and the second reflection loss threshold is the maximum reflection loss value among the N1 first reflection loss values.

[0017] In conjunction with the first aspect, in one possible implementation, let's take any one of the N1 first scattering points (hereinafter referred to as first scattering point i2 for ease of distinction) as an example. The first reflection loss value of the first scattering point i2 can be determined based on the signal transmission constant corresponding to the first sensing signal, the path loss of the first sensing signal, and the received signal strength of the first sensing signal. It should be understood that, in this embodiment, for the first device, the signal transmission constant corresponding to all the sensing signals it receives is the same.

[0018] In conjunction with the first aspect, in one possible implementation, the first reflection loss value of the first scattering point i2, the signal transmission constant corresponding to the first sensing signal, the path loss of the first sensing signal, and the received signal strength of the first sensing signal satisfy the following formula:

[0019] RL = C-DL-RSS

[0020] Wherein, RL is the first reflection loss value of the first scattering point i2, C is the signal transmission constant corresponding to the first sensing signal, DL is the path loss of the first sensing signal, and RSS is the received signal strength of the first sensing signal.

[0021] In conjunction with the first aspect, in one possible implementation, the signal transmission constant C can be determined based on the signal reception strength and path loss of N2 reference signals. These N2 reference signals can be transmitted by N2 anchor devices and received by the first device. N2 is a positive integer greater than or equal to 1. Furthermore, the propagation paths of these N2 reference signals are all direct paths.

[0022] In the above implementation, the signal transmission constant C is obtained in real time by measuring the direct signal transmitted between the anchor point device and the first device, which can ensure the accuracy of the value of the signal transmission constant C, and thus ensure the accuracy and reliability of the calculated reflection loss value.

[0023] In conjunction with the first aspect, in one possible implementation, when the difference between the average first incident angle and the average first reflection angle is less than a first angle threshold, the first signal reflection type corresponding to the N1 first scattering points is specular reflection. When the difference between the average first incident angle and the average first reflection angle is equal to or greater than the first angle threshold, the first signal reflection type corresponding to the N1 first scattering points is diffuse reflection. Here, the average first incident angle is the average of the incident angles of the first sensed signal at the N1 first scattering points, and the average first reflection angle is the average of the reflection angles of the first sensed signal at the N1 first scattering points.

[0024] In the above implementation, the first signal reflection type corresponding to the first scattering point N1 is determined by the difference between the average incident angle and the average exit angle. The scheme is simple and reliable, and can reduce the complexity of the signal reflection type determination process.

[0025] In conjunction with the first aspect, in one possible implementation, the method may further include: a first device receiving a first measurement request from a second device. Here, the first measurement request indicates at least one of the following: first information, second information, third information, or fourth information. Specifically, the first information may be used to indicate that the data type of the first scattering feature information is polygonal data. The second information may be used to indicate that the data type of the reflection loss parameter in the first scattering feature information is a mean value or a range value. Alternatively, the second information may be used to indicate whether the reflection loss parameter included in the first scattering feature information is a mean reflection loss or a reflection loss range. The third information is used to identify the first polygon. The fourth information is used to indicate the first signal frequency of the first sensing signal.

[0026] In this case, determining the first scattering feature information may include: the first device measuring the first scattering feature information based on the first measurement request and the first sensing signal.

[0027] For example, suppose the second information is used to indicate that the data type of the reflection loss parameter in the scattering feature information reported by the first device is the mean. After receiving the first measurement request, the first device can determine, based on the first measurement request, that the first scattering feature information should include the first scattering feature data corresponding to the first polygon, wherein the reflection loss parameter included in the first scattering feature information is implemented as the mean reflection loss, and the first scattering feature information is obtained based on a first sensing signal measured at a first signal frequency. Then, the first device can measure the required first scattering feature information based on the first sensing signal.

[0028] In conjunction with the first aspect, in one possible implementation, the first spatial feature information may include the first polygon information corresponding to the first polygon. For example, the first polygon information may include the center coordinates, boundary point (or vertex) coordinates, the normal direction corresponding to the first polygon, and the velocity of the first polygon. That is, the first spatial feature information and the first scattering feature information use the same data type. This ensures data format consistency, thereby facilitating subsequent environment reconstruction.

[0029] In conjunction with the first aspect, in one possible implementation, the first scattering feature information can be obtained based on the measurement of the first sensing signal, and the first scattering feature information includes the second scattering feature data of N2 second scattering points corresponding to the first sensing signal. N2 is a positive integer greater than or equal to 1. Alternatively, the first scattering feature information includes the scattering feature data of each second scattering point corresponding to the first sensing signal.

[0030] In the above implementation, the scattering feature data of each scattering point corresponding to the first sensing signal is used as the first scattering feature information. This allows the first scattering feature information to more clearly and completely reflect the impact of the sensing environment on the transmission of the wireless signal, thereby making the reliability of the first environment reconstruction result stronger.

[0031] In conjunction with the first aspect, in one possible implementation, the second scattering characteristic data corresponding to any one of the N2 second scattering points (hereinafter referred to as second scattering point i1 for ease of distinction) may include the second signal reflection type and / or the second reflection loss value of the second scattering point i1.

[0032] In conjunction with the first aspect, in one possible implementation, the method further includes: a first device receiving a second measurement request from a second device. The second measurement request indicates at least one of the following: fourth information or fifth information. The fourth information indicates a first signal frequency of the first sensed signal. The fifth information indicates that the data type of the first scattering feature information is scattering point data. Alternatively, the fifth information instructs the first device to report the first scattering feature information at the granularity of scattering points.

[0033] In this case, determining the first scattering feature information may include: the first device measuring the first scattering feature information based on the second measurement request and the first sensing information.

[0034] For example, after receiving a second measurement request, the first device can determine, based on the first measurement request, that the first scattering feature information is obtained by measuring a first sensing signal based on a first signal frequency, and should be measured at the scattering point level. Then, the first device can measure the aforementioned first scattering feature information based on the first sensing signal.

[0035] In conjunction with the first aspect, in one possible implementation, the first spatial feature information may include the first scattering point information of the aforementioned N2 second scattering points. Optionally, the first scattering point information of the second scattering point i1 may include the three-dimensional coordinates of the second scattering point i1, the angle information of the second scattering point i1, the confidence level of the second scattering point i1, the path power of the second scattering point i1, etc.

[0036] In conjunction with the first aspect, in one possible implementation, the method further includes: the first device determining and sending first spatial feature information to the second device.

[0037] In conjunction with the first aspect, in one possible implementation, the method may further include: receiving a third measurement request from a second device. The third measurement request indicates at least one of the following: a sixth message or a seventh message, wherein the sixth message indicates that the first device reports second spatial feature information and second scattering feature information corresponding to all measured scattering points, and the seventh message indicates that the data type of the second spatial feature information and the second scattering feature information is scattering point data. Then, the first device can measure the corresponding second spatial feature information and second scattering feature information according to the third measurement request and the second sensing signal. The second spatial feature information includes second scattering point information of all third scattering points measured by the first device based on the second sensing signal, and the second scattering feature data includes third scattering feature data of all third scattering points measured by the first device based on the second sensing signal. Then, the first device can send the second spatial feature information and the second scattering feature information to the second device. The second spatial feature information and the second scattering feature information are used to determine a second environment reconstruction result, wherein the second environment reconstruction result includes at least one of the second scattering feature information or environmental reflection parameters reconstructed based on the second scattering feature information, and at least one of the second spatial feature information or spatial structure parameters reconstructed based on the second spatial feature information.

[0038] Optionally, the second sensing signal can be any sensing signal that the first device can receive, or it can be at least one sensing signal specified by the second device. If the second sensing signal is at least one sensing signal specified by the second device, the third measurement request can also indicate eighth information, which is used to indicate the at least one first sensing signal. Alternatively, the eighth information is used to indicate that the first device measures second spatial feature information and second scattering feature information based on at least one first sensing signal.

[0039] Optionally, the results of this second environment reconstruction can also be used for communication performance optimization and / or positioning enhancement.

[0040] In conjunction with the first aspect, in one possible implementation, the result of environmental reconstruction is an environmental map.

[0041] Secondly, embodiments of this application provide a communication method. This method is applicable to a second device or a device within the second device responsible for sensing functions (such as modules, communication modules, circuits, processors, chips, or chip systems within the second device). Alternatively, it is applicable to logic nodes, logic modules, or software capable of implementing all or part of the functions of the second device. The following description uses the application of this method to a second device as an example.

[0042] The method includes: a second device acquiring first scattering feature information. The first scattering feature information is used to characterize the reflection characteristics of the sensing environment to the sensing signal; the second device determining a first environment reconstruction result, wherein the first environment reconstruction result includes at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information, and at least one of first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information. Here, the first spatial feature information is used to characterize the spatial geometric structure characteristics of the sensing environment.

[0043] In the above implementation, the second device can determine a more informative first environment reconstruction result based on the new sensing result of the first scattering feature information. This first environment reconstruction result includes not only at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information, but also at least one of the first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information. Since the first scattering feature information can effectively reflect the impact of the sensing environment on the transmission of wireless signals, and the first spatial feature information can effectively reflect the spatial geometric characteristics of the wireless signal transmission environment, the first environment reconstruction result can be used not only for channel state prediction, which helps optimize communication performance, but also for processes such as beamforming, beam tracking, and base station deployment, which also help optimize communication performance. Therefore, using the communication method provided in this application can improve the effectiveness of the sensing result in optimizing communication performance.

[0044] In conjunction with the second aspect, in one possible implementation, the second device acquires the first scattering feature information by: the second device receiving the first scattering feature information from the first device.

[0045] In conjunction with the second aspect, in one possible implementation, the result of the first perception reconstruction can be used by the second device to optimize communication performance or enhance positioning.

[0046] In conjunction with the second aspect, in one possible implementation, the first scattering feature information is obtained based on measurements of the first sensing signal, and the first polygon is reconstructed from the N1 first scattering points corresponding to the first sensing signal. Here, N1 is a positive integer greater than or equal to 2. The first scattering feature information may include first scattering feature data corresponding to the first polygon, and at least one of the following: the first signal frequency of the first sensing signal or the main beam direction of the first polygon.

[0047] In conjunction with the second aspect, in one possible implementation, the first scattering feature data may include the first signal reflection type corresponding to N1 first scattering points and / or the first reflection loss parameter corresponding to N1 first scattering points.

[0048] In conjunction with the second aspect, in one possible implementation, the first reflection loss parameter may include at least one of the following: the average reflection loss of N1 first scattering points or the reflection loss range of N1 first scattering points.

[0049] In conjunction with the second aspect, in one possible implementation, the lower limit of the reflection loss range of the N1 first scattering points is a first reflection loss threshold, and the upper limit is a second reflection loss threshold. The first reflection loss threshold is the x-th percentile of the N1 first reflection loss values ​​corresponding to the N1 first scattering points, and the second reflection loss threshold is the y-th percentile of the N1 first reflection loss values. Both x and y are greater than 0 and less than 1, and x is less than y. Alternatively, the first reflection loss threshold is the minimum reflection loss value among the N1 first reflection loss values ​​corresponding to the N1 first scattering points, and the second reflection loss threshold is the maximum reflection loss value among the N1 first reflection loss values.

[0050] In conjunction with the second aspect, in one possible implementation, let's take any one of the N1 first scattering points, i2, as an example. The first reflection loss value of the first scattering point i2 can be determined based on the signal transmission constant corresponding to the first sensing signal, the path loss of the first sensing signal, and the received signal strength of the first sensing signal.

[0051] In conjunction with the second aspect, in one possible implementation, the first reflection loss value of the first scattering point i2, the signal transmission constant corresponding to the first sensing signal, the path loss of the first sensing signal, and the received signal strength of the first sensing signal satisfy the following formula:

[0052] RL = C-DL-RSS

[0053] Wherein, RL is the first reflection loss value of the first scattering point i2, C is the signal transmission constant corresponding to the first sensing signal, DL is the path loss of the first sensing signal, and RSS is the received signal strength of the first sensing signal.

[0054] In conjunction with the second aspect, in one possible implementation, the signal transmission constant C can be determined based on the signal reception strength and path loss of N2 reference signals. These N2 reference signals can be transmitted by N2 anchor devices and received by the first device. N2 is a positive integer greater than or equal to 1. Furthermore, the propagation paths of these N2 reference signals are all direct paths, meaning that these N2 reference signals do not undergo reflection or refraction during transmission and are directly received by the first device after being transmitted by the N2 anchor devices.

[0055] In conjunction with the second aspect, in one possible implementation, when the difference between the average first incident angle and the average first reflection angle is less than a first angle threshold, the first signal reflection type corresponding to the N1 first scattering points is specular reflection. When the difference between the average first incident angle and the average first reflection angle is equal to or greater than the first angle threshold, the first signal reflection type corresponding to the N1 first scattering points is diffuse reflection. Here, the average first incident angle is the average of the incident angles of the first sensed signal at the N1 first scattering points, and the average first reflection angle is the average of the reflection angles of the first sensed signal at the N1 first scattering points.

[0056] In conjunction with the second aspect, in one possible implementation, the method may further include: the second device sending a first measurement request to the first device. Here, the first measurement request indicates at least one of the following: first information, second information, third information, or fourth information. Specifically, the first information may be used to indicate that the data type of the first scattering feature information is polygonal data. The second information may be used to indicate that the data type of the reflection loss parameter in the first scattering feature information is a mean or range value. The third information is used to identify the first polygon. The fourth information is used to indicate the first signal frequency of the first sensing signal.

[0057] In conjunction with the second aspect, in one possible implementation, the second device may determine to send a first measurement request to the first device based on at least one of the following: the acquisition status of scattering feature data, its current sensing task requirements, and its load quantity.

[0058] In conjunction with the second aspect, in one possible implementation, the second device determines to send a first measurement request to the first device based on at least one of the following: the acquisition status of scattering feature data, its current sensing task requirements, and its load quantity. This may include: the second device sending a first measurement request to the first device if it has not acquired scattering feature data of the first polygon and its load quantity is greater than a first load quantity threshold. Alternatively, the second device sending a first measurement request to the first device if its sensing task requirements are to acquire scattering feature data of a polygon within a target area, the first polygon is a polygon within the target area, and its load quantity is less than the first load quantity threshold but equal to or greater than a second load quantity threshold.

[0059] In the above implementation, when the load is large or moderate but there is a need for scattering feature information, a first measurement request is sent to the first device. On the one hand, this can avoid information redundancy caused by frequent reporting of scattering feature information. On the other hand, it can also adapt the load of the second device to low-overhead scattering feature information (at this time, the data type of the first scattering feature information is polygon data), thereby avoiding excessive load pressure on the second device.

[0060] In conjunction with the second aspect, in one possible implementation, the first spatial feature information may include the first polygon information corresponding to the first polygon. For example, the first polygon information may include the center coordinates, boundary point (or vertex) coordinates, the normal direction corresponding to the first polygon, and the velocity of the first polygon. That is, the first spatial feature information and the first scattering feature information use the same data type. This ensures data format consistency, thereby facilitating subsequent environment reconstruction.

[0061] In conjunction with the second aspect, in one possible implementation, the first scattering feature information can be obtained based on the measurement of the first sensing signal, and the first scattering feature information includes the second scattering feature data of N2 second scattering points corresponding to the first sensing signal. N2 is a positive integer greater than or equal to N1. Alternatively, the first scattering feature information includes the scattering feature data of each second scattering point corresponding to the first sensing signal.

[0062] In conjunction with the second aspect, in one possible implementation, the second scattering characteristic data corresponding to any one of the N2 second scattering points i1 may include the second signal reflection type and / or the second reflection loss value of that second scattering point i1.

[0063] In conjunction with the second aspect, in one possible implementation, the method further includes: the second device sending a second measurement request to the first device. The second measurement request indicates at least one of the following: fourth information or fifth information. The fourth information indicates a first signal frequency of the first sensed signal. The fifth information indicates that the data type of the first scattering feature information is scattering point data.

[0064] In conjunction with the second aspect, in one possible implementation, the second device may determine to send a second measurement request to the first device based on at least one of the following: the acquisition status of scattering feature data, its current sensing task requirements, and its load quantity.

[0065] In conjunction with the second aspect, in one possible implementation, the second device determines to send a second measurement request to the first device based on at least one of the following: the acquisition status of scattering feature data, its current sensing task requirements, and its load quantity. This includes: the second device sending a second measurement request to the first device when it has not acquired scattering feature data for any scattering point and the load quantity is less than a second load quantity threshold. Alternatively, the second device sends a second measurement request to the first device when the sensing task requirements are to acquire scattering feature data for scattering points with a confidence level equal to or greater than a first confidence threshold, the confidence levels of N2 second scattering points are all equal to or greater than the first confidence threshold, and the load quantity is less than the first load quantity threshold but equal to or greater than the second load quantity threshold.

[0066] In the above implementation, when the load is small or moderate but there is a need for scattering feature information, a second measurement request is sent to the first device. On the one hand, this can avoid information redundancy caused by frequent reporting of scattering feature information. On the other hand, if the load condition allows, the first device can be instructed to report more detailed first scattering feature information (at this time, the data type of the first scattering feature information is scattering point data), thereby ensuring the reliability of the first environment reconstruction result.

[0067] In conjunction with the second aspect, in one possible implementation, the method may further include: a second device sending a third measurement request to a first device, wherein the third measurement request indicates at least one of the following: a sixth message or a seventh message. The sixth message indicates that the first device should report second spatial feature information and second scattering feature information corresponding to all scattering points it has measured, and the seventh message indicates that the data type of the second spatial feature information and the second scattering feature information is scattering point data. The second device receives the second spatial feature information and the second scattering feature information from the first device. The second spatial feature information includes second scattering point information for all third scattering points corresponding to the second sensing signal, and the second scattering feature information includes third scattering feature data for all third scattering points. The second device determines a second environment reconstruction result based on the second spatial feature information and the second scattering feature information. The second environment reconstruction result includes at least one of the second scattering feature information or environmental reflection parameters reconstructed based on the second scattering feature information, and at least one of the second spatial feature information or spatial structure parameters reconstructed based on the second spatial feature information.

[0068] Optionally, the second device may send a third measurement request to the first device if it has not obtained the spatial feature information and scattering feature information corresponding to any scattering point. For example, the second device may send the third measurement request when it first requests the first device to provide spatial feature information and scattering feature information.

[0069] In conjunction with the second aspect, in one possible implementation, the second device determining the first environment reconstruction result may include: the second device acquiring first spatial feature information. The second device performs environment reconstruction based on the first scattering feature information and the first spatial feature information to obtain the first environment reconstruction result. Here, the first spatial feature information may be existing to the second device or provided by the first device.

[0070] In conjunction with the second aspect, in one possible implementation, the second device determining the first environment reconstruction result may include: the second device updating the second environment reconstruction result based on the first scattering feature information to obtain the first environment reconstruction result, wherein the second environment reconstruction result includes at least one of the first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information. That is, by adding at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information to the second environment reconstruction result, the first environment reconstruction result can be obtained.

[0071] In conjunction with the second aspect, in one possible implementation, the result of environmental reconstruction is an environmental map.

[0072] Thirdly, embodiments of this application provide a communication device, which includes modules, units, or means for implementing the communication method described in any of the foregoing aspects or any possible implementations of the communication method described in any of the foregoing aspects. These modules, units, or means can be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the aforementioned functions.

[0073] It should be understood that the communication device may be the first device involved in the first aspect or any possible implementation of the first aspect, or the second device involved in the second aspect or any possible implementation of the second aspect.

[0074] Fourthly, this application provides a communication device. The communication device may include at least one processor. This at least one processor is configured to execute the communication method provided by the first aspect or any possible implementation thereof, or to execute the communication method provided by the second aspect or any possible implementation thereof.

[0075] Optionally, the communication device also includes a memory for storing necessary program instructions and data. Furthermore, the memory may be coupled to the processor, or it may be independent of the processor.

[0076] Optionally, the communication device may further include a transceiver for transmitting and / or receiving information involved in the communication method provided by the first aspect or any possible implementation thereof, or for performing the communication method provided by the second aspect or any possible implementation thereof.

[0077] Optionally, the communication device may also include a bus system through which at least one processor, memory, and transceiver can be coupled.

[0078] Fifthly, this application provides a computer program product including instructions that, when executed on a computer, cause the computer to perform the communication method described in any of the foregoing aspects or any possible implementation thereof.

[0079] Sixthly, this application provides a computer-readable storage medium storing a computer program, wherein when the computer program is executed, the communication method provided by the first aspect or any possible implementation thereof, or the communication method provided for executing the second aspect or any possible implementation thereof, is implemented.

[0080] In a seventh aspect, this application provides a chip system that includes at least a processor. The processor executes computer execution instructions to cause a device equipped with the chip system to perform the communication method provided by the first aspect or any possible implementation thereof, or to perform the communication method provided by the second aspect or any possible implementation thereof.

[0081] In conjunction with the seventh aspect, in one possible implementation, the chip system may further include interface circuitry. This interface circuitry is used to receive computer execution instructions and transmit them to the processor.

[0082] Eighthly, this application provides a communication device, which may include a processor and an interface circuit. The interface circuit is configured to receive signals from other communication devices besides the communication device and transmit them to the processor, or to send signals from the processor to other communication devices besides the communication device. The processor is configured to implement the communication method provided by the first aspect or any possible implementation thereof through logic circuits or by executing computer programs or instructions, or to implement the communication method provided by the second aspect or any possible implementation thereof.

[0083] It should be understood that the communication device can be a first device involved in the communication method provided by the first aspect or any possible implementation of the first aspect, or an apparatus containing the first device, or an apparatus contained in the first device, such as a chip system. Alternatively, the communication device can be a second device involved in the communication method provided by the second aspect or any possible implementation of the second aspect, or an apparatus containing the second device, or an apparatus contained in the second device, such as a chip system.

[0084] Ninthly, this application provides a communication system. This communication system may include the first device and the second device described above.

[0085] The first device is used to implement the communication method provided by the first aspect or any possible implementation thereof. The second device is used to implement the communication method provided by the second aspect or any possible implementation thereof. Attached Figure Description

[0086] Figure 1 This is a schematic diagram of the structure of a communication system provided in this application;

[0087] Figure 2 This is a flowchart illustrating a communication method provided in this application;

[0088] Figure 3 This is another flowchart illustrating a communication method provided in this application;

[0089] Figure 4 This is another flowchart illustrating a communication method provided in this application;

[0090] Figure 5 This is another flowchart illustrating a communication method provided in this application;

[0091] Figure 6 This is a schematic diagram of the structure of a communication device provided in this application;

[0092] Figure 7 This is a schematic diagram of the structure of another communication device provided in this application;

[0093] Figure 8 This is a schematic diagram of another communication device provided in this application. Detailed Implementation

[0094] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0095] It should be understood that the technical solutions provided in this application can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5th Generation (5G) systems, or New Radio (NR) systems. In addition, they can also be applied to future evolution systems.

[0096] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a communication system provided in this application. The communication method provided in this application is applicable to... Figure 1 The communication system shown. (As shown) Figure 1 As shown, the communication system 10 may include a first device and a second device, which cooperate to implement the communication method provided in this application. Wherein:

[0097] The first device can be used to measure and obtain corresponding sensing results based on received sensing signals, including scattering feature information and / or spatial feature information. That is, the first device is a device, network element, or functional entity that provides sensing functionality. It should be understood that the network element can also be referred to as an entity, device, apparatus, or module, etc., and this application does not specifically limit its usage. In some possible implementations, the first device can be a network device or terminal device capable of sensing calculation. It should be understood that in future communication systems, the first device can still be a terminal device or network device, or it can be other devices with sensing calculation functions, or it can have other names; this application does not specifically limit its usage. Furthermore, this application does not specifically limit the product form of the first device.

[0098] It should be understood that the sensing function involved in this application can refer to the function of inferring environmental information by analyzing wireless signals reflected, diffracted, or scattered by the environment. This environmental information may include information such as the position, motion state, and shape of objects in the environment. In this application, the device with sensing function can measure various environmental information based on received wireless signals reflected, diffracted, or scattered by the environment.

[0099] The second device is a apparatus, network element, or functional entity capable of reconstructing the environment based on the sensing results to obtain the reconstructed environment result. Furthermore, the second device can also optimize communication performance or enhance positioning based on the reconstructed environment result. In some possible implementations, the second device can be a network device or a sensing management function (SeMF) network element. Here, the sensing management function network element can be used for network control, management, and scheduling of sensing service processes such as sensing measurement and sensing reporting. It should be understood that this application does not impose specific limitations on the product form of the second device.

[0100] It should be understood that the radio access network (RAN) provided in this application can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as 4G, 5G mobile communication systems, or future-oriented evolution systems. The radio access network can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. Alternatively, the radio access network can also be a communication system that integrates two or more of the above systems.

[0101] It should be noted that the naming of network elements in this application embodiment is exemplary and not limiting. As technology evolves, entities with the corresponding functions of each network element may adopt other naming methods, and no specific restrictions are imposed on this.

[0102] It should be understood that in the embodiments of this application, network devices may sometimes be referred to as RAN nodes, access network devices, radio access network devices, RAN entities, or access nodes, etc. For ease of understanding, the embodiments of this application will uniformly use the term "network device" to describe them. In actual work, network devices are mainly used to help terminal devices achieve wireless access.

[0103] In one possible scenario, the network device can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a base station in a future mobile communication system, or an access node in a WiFi system. Optionally, the network device can also be a macro base station, a micro base station, an indoor station, a relay node, or a donor node. Optionally, the network device can also be a server, a wearable device, a vehicle, or in-vehicle equipment. For example, the access network device in vehicle-to-everything (V2X) technology can be a roadside unit (RSU). All or part of the functions of the network device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (e.g., a cloud platform). The network device can also be equipped with communication modules, circuits, or chips that perform corresponding communication functions. The network device can also be configured with program instructions for performing corresponding communication functions and corresponding program instructions. The network device in this application may also be a logical node, logical module, or software that can implement all or part of the functions of a network device.

[0104] In another possible scenario, multiple network devices can collaborate to assist the terminal in achieving wireless access, with each network device performing a portion of the base station's functions. For example, the network devices can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU can be configured separately or included in the same network element, such as a baseband unit (BBU). The RU can be included in radio equipment or radio units, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0105] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0106] It should be understood that in the embodiments of this application, the terminal device can be a device or module with corresponding communication functions. The terminal device can also be called a terminal, user equipment, mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), V2X communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, transportation vehicles with wireless communication capabilities, communication modules, etc. It should be understood that the embodiments of this application do not limit the device form of the terminal device. In addition, the terminal device typically contains a communication module, circuit, or chip that performs the corresponding communication function. The terminal device can also be configured with program instructions for performing the corresponding communication function.

[0107] The preceding text is based on Figure 1 The structure of the communication system 10 to which the communication method provided in this application is applicable has been described below, in conjunction with... Figure 1 The structure of the communication system 10 shown herein will be described in detail to illustrate the implementation process of the communication method provided in this application.

[0108] Currently, the sensing results acquired by sensing devices mainly include spatial feature information characterizing the spatial geometric structure of the sensing environment, such as scattering point information corresponding to the sensing signal (which may include the three-dimensional coordinates, angle information, path power, etc. of the scattering point) or polygon information corresponding to the sensing signal (such as the center coordinates and boundary point coordinates of the polygon). The environmental reconstruction results obtained based on existing sensing results can only reflect the spatial geometric structure of obstacles such as buildings within the sensing environment. While they can play a significant role in channel state prediction, their effectiveness in beamforming, beam tracking, and base station deployment is limited. Therefore, how to further improve the effectiveness of sensing results in communication performance optimization has become one of the current research hotspots.

[0109] Therefore, the technical problem to be solved by this application is: how to improve the effectiveness of perception results in communication performance optimization.

[0110] Please see Figure 2 , Figure 2 This is a flowchart illustrating a communication method provided in this application. This communication method is applicable to... Figure 1 The communication system shown. (As shown) Figure 2 As shown, the communication method may include the following steps:

[0111] S201, the first device determines the first scattering characteristic information.

[0112] In some possible implementations, the first device may determine first scattering characteristic information. This first scattering characteristic information can be used to characterize the reflection characteristics of the sensing environment on the sensing signal. Here, the sensing environment can be understood as the physical space through which the sensing signal received by the first device travels, containing various objects that have scattering or reflecting effects on the sensing signal; these objects can also be understood as obstacles within the sensing environment. It should be understood that the first scattering characteristic information is measured by the first device based on the sensing signal it receives. Furthermore, in this embodiment, the echo signal of the sensing signal is obtained after the sensing signal has passed through a sensing target (e.g., reflection or scattering), and this echo signal can also be understood as the sensing signal. Therefore, in this embodiment, the echo signal obtained after the sensing signal has been reflected or scattered is still referred to as the sensing signal.

[0113] It should be noted that the data types of spatial feature information and scattering feature information involved in this application include, but are not limited to, polygon data or scattering point data. When the data type is polygon data, the spatial feature information and scattering point feature information can be based on polygons as the basic granularity. For example, the spatial feature information may include polygon information corresponding to each polygon in at least one polygon. Here, polygon information may include at least one of the following: the center, size, normal line direction (or nordirection), category, or velocity of the polygon. Correspondingly, the scattering point feature information may include scattering feature data corresponding to each polygon in at least one polygon. When the data type is scattering point data, the spatial feature information and scattering point feature information can be based on scattering points as the basic granularity. For example, the spatial feature information may include scattering point information corresponding to each scattering point in at least one scattering point. Here, the scattering point information corresponding to any scattering point may include at least one of the following: the coordinates, power, or velocity of the scattering point. The coordinates of the scattering point include, but are not limited to, Cartesian coordinates, polar coordinates, etc., and other coordinate systems that can represent position information are also applicable. Correspondingly, the scattering point feature information may include scattering feature data corresponding to each scattering point in at least one scattering point.

[0114] Here, the polygons involved in this application refer to the geometric shapes reconstructed from scattering points. Since the number of scattering points is generally large, the information overhead associated with each scattering point is significant and may contain redundancy. To address this issue, the scattering point information can be compressed, such as by voxelizing the scattering points or performing polygon fitting to reconstruct the corresponding polygons, thereby obtaining polygon information with relatively low overhead. It should also be noted that in the embodiments of this application, multiple scattering points of a reconstructed polygon can correspond to the same sensing signal or multiple different sensing signals. In the embodiments of this application, the difference between sensing signal A and sensing signal B can refer to: sensing signal A and sensing signal B having different signal frequencies, and / or, sensing signal A and sensing signal B having different beam directions.

[0115] The process of the first device determining the first scattering feature information will be explained below, taking two scenarios as examples: the first scattering feature information is of polygonal data and the first scattering point data.

[0116] Scenario 1: The data type of the first scattering feature information is polygon data.

[0117] In some optional implementations, the first scattering feature information can be obtained based on the measurement of the first sensing signal, and the first polygon can be reconstructed from the N1 first scattering points corresponding to the first sensing signal. Here, N1 is a positive integer greater than or equal to 2. The N1 first scattering points can be all scattering points corresponding to the first sensing signal, or only a portion of the scattering points corresponding to the first sensing signal; this application does not impose specific limitations on this. In the embodiments of this application, the scattering points corresponding to the sensing signal can also be described as the scattering points that the sensing signal passes through during transmission. In other words, the scattering points corresponding to the sensing signal are the spatial locations that have a reflection or scattering effect on the sensing signal.

[0118] In this case, the first scattering feature information may include the first scattering feature data corresponding to the first polygon, and at least one of the following: the first signal frequency of the first sensing signal or the main beam direction of the first polygon. Here, the main beam of the first polygon may also be referred to as the guided beam of the first polygon.

[0119] For example, the first device can measure the scattering point information of each of the N1 first scattering points based on the first sensing signal. Then, the first device can perform polygon fitting based on these N1 first scattering points to reconstruct a first polygon. Further, the first device can measure the first scattering feature data corresponding to the first polygon based on the first sensing signal. Then, the first device can generate the first scattering feature information based on the first scattering feature data.

[0120] In the above implementation, using the scattering feature data corresponding to the polygon as the scattering feature information can reduce the amount of scattering feature information data, thereby reducing the transmission overhead caused by the scattering feature information.

[0121] In one optional implementation, the first scattering feature data may include the first signal reflection type corresponding to the aforementioned N1 first scattering points and / or the first reflection loss parameter corresponding to the N1 first scattering points. Alternatively, the first scattering feature data may include the first signal reflection type corresponding to the first polygon and / or the first reflection loss parameter corresponding to the first polygon. Optionally, the signal reflection type involved in this application mainly refers to the reflection mode of the sensed signal at the scattering point, and this signal reflection type includes, but is not limited to, specular reflection, diffuse reflection, etc.

[0122] For example, after determining the first polygon, the first device can determine the first signal reflection type corresponding to N1 first scattering points based on the first sensing signal, and can also determine the first reflection loss parameter corresponding to these N1 first scattering points based on the first sensing signal. Then, the first device can determine the first scattering feature data corresponding to the first polygon based on the first signal reflection type and the first reflection loss parameter.

[0123] In one optional implementation, when the difference between the average first incident angle and the average first reflection angle is less than a first angle threshold, the first signal reflection type corresponding to the N1 first scattering points is specular reflection. When the difference between the average first incident angle and the average first reflection angle is equal to or greater than the first angle threshold, the first signal reflection type corresponding to the N1 first scattering points is diffuse reflection. Here, the average first incident angle is the average of the incident angles of the first sensed signal at the N1 first scattering points, and the average first reflection angle is the average of the reflection angles of the first sensed signal at the N1 first scattering points.

[0124] For example, in determining the first signal reflection type, the first device can acquire N1 incident angles of the first sensed signal at N1 first scattering points, and determine the average value of these N1 incident angles as the first incident angle average. Correspondingly, the first device can also acquire N1 reflection angles of the first sensed signal at the N1 first scattering points, and determine the average value of these N1 reflection angles as the first reflection angle mean. Then, the first device can calculate the difference between the first incident angle mean and the first reflection angle mean. Further, if the first device determines that the difference between the first incident angle mean and the first reflection angle mean is less than a first angle threshold, then the first signal reflection type can be determined to be specular reflection. If the first device determines that the difference between the first incident angle mean and the first reflection angle mean is equal to or greater than the first angle threshold, then the first signal reflection type can be determined to be diffuse reflection.

[0125] In the above implementation, the first signal reflection type corresponding to the first scattering point N1 is determined by the difference between the average incident angle and the average exit angle. The scheme is simple and reliable, and can reduce the complexity of the signal reflection type determination process.

[0126] In one alternative implementation, the first reflection loss parameter may include at least one of the following: the average reflection loss of N1 first scattering points or the reflection loss range of N1 first scattering points.

[0127] In the above implementation, using the average reflection loss or the reflection loss range as the reflection loss parameter can further reduce the transmission overhead caused by scattering characteristic information.

[0128] Optionally, the average reflection loss of the N1 first scattering points can be the average of the N1 first reflection loss values ​​corresponding to the N1 first scattering points. For example, the first device can calculate the average of the N1 first reflection loss values ​​corresponding to the N1 first scattering points and determine it as the first reflection loss parameter.

[0129] Optionally, the lower limit of the reflection loss range of the N1 first scattering points is a first reflection loss threshold, and the upper limit is a second reflection loss threshold. The first reflection loss threshold is the x-th percentile of the N1 first reflection loss values ​​corresponding to the N1 first scattering points, and the second reflection loss threshold is the y-th percentile of the N1 first reflection loss values. Both x and y are greater than 0 and less than 1, and x is less than y.

[0130] For example, after obtaining N1 first reflection loss values ​​corresponding to N1 first scattering points, the first device can calculate the x-th percentile of the N1 first reflection loss values ​​and determine it as a first reflection loss threshold. Then, the first device can calculate the y-th percentile of the N1 first reflection loss values ​​and determine it as a second reflection loss threshold. Then, the first device can determine the reflection loss range of the N1 first scattering points based on the first reflection loss threshold and the second reflection loss threshold.

[0131] Alternatively, the first reflection loss threshold can be the minimum reflection loss value among the N1 first reflection loss values ​​corresponding to the N1 first scattering points, and the second reflection loss threshold can be the maximum reflection loss value among the N1 first reflection loss values.

[0132] In this embodiment, the process of determining the first reflection loss value corresponding to each of the N1 first scattering points is similar. To avoid redundancy, the following description uses the calculation process of the first reflection loss value corresponding to any one of the N1 first scattering points (hereinafter referred to as first scattering point i2 for ease of distinction) as an example. The calculation process of other scattering points besides first scattering point i2 can be referred to the calculation process corresponding to first scattering point i2, and will not be repeated here.

[0133] In one optional implementation, the first reflection loss value of the first scattering point i2 can be determined based on the signal transmission constant corresponding to the first sensing signal, the path loss of the first sensing signal, and the received signal strength of the first sensing signal. It should be understood that, in this embodiment, for the first device, the signal transmission constant corresponding to all the sensing signals it receives is the same.

[0134] For example, the first reflection loss value of the first scattering point i2, the signal transmission constant corresponding to the first sensing signal, the path loss of the first sensing signal, and the received signal strength of the first sensing signal satisfy the following formula (1):

[0135] RL = C - DL - RSS (1)

[0136] Wherein, RL is the first reflection loss value of the first scattering point i2, C is the signal transmission constant corresponding to the first sensing signal, DL is the path loss of the first sensing signal, and RSS is the received signal strength of the first sensing signal.

[0137] In other words, the first device can obtain the signal transmission constant C corresponding to the first sensing signal, the path loss DL of the first sensing signal, and the received signal strength RSS of the first sensing signal, and then calculate the first reflection loss value of the first scattering point i2 according to formula (1).

[0138] It should be noted that when there is only one first sensing signal (i.e., N1 first scattering points correspond to the same sensing signal), the aforementioned N1 first scattering points correspond to the same first reflection loss value.

[0139] Optionally, the signal transmission constant C corresponding to the first sensing signal can be used to characterize the influence of the transmission power of the first sensing signal, the transmitting antenna gain corresponding to the first sensing signal, the receiving antenna gain corresponding to the first sensing signal, and the air loss corresponding to the first sensing signal on the reflection loss of the first scattering point i2. Specifically, the signal transmission constant C can satisfy the following formula (2):

[0140] C = P1 + G1 + G2 - OL (2)

[0141] Wherein, P1 is the transmission power of the first sensing signal, G1 is the transmission antenna gain corresponding to the first sensing signal, G2 is the receiving antenna gain corresponding to the first sensing signal, and OL is the air loss corresponding to the first sensing signal.

[0142] In the above implementation, the air loss OL changes relatively little and can generally be considered a constant. Therefore, while ensuring that the reflection power, transmitting antenna gain, and receiving antenna gain corresponding to each sensed signal remain unchanged, the calculation result P1+G1+G2-OL can be regarded as a constant. This simplifies the calculation process of the reflection loss value at each scattering point, thereby reducing the complexity of the process of determining the first scattering characteristic information.

[0143] Optionally, the signal transmission constant C can be determined based on the signal reception strength and path loss of N2 reference signals. These N2 reference signals can be transmitted by N2 anchor devices and received by a first device used to receive the first sensing signal. N2 is a positive integer greater than or equal to 1. Furthermore, the propagation paths of these N2 reference signals are all direct paths, meaning that these N2 reference signals do not undergo reflection or refraction during transmission and are directly received by the first device after being transmitted by the N2 anchor devices. It should be understood that since the air loss OL can be considered a constant, the signal transmission constant is the same for all sensing signals received by the first device, provided that the reflection power, transmitting antenna gain, and receiving antenna gain of each sensing signal remain unchanged. Therefore, the signal transmission constant C can be calculated from the reception results of the aforementioned N2 reference signals.

[0144] For example, the first device can acquire and receive N2 reference signals transmitted from N2 reference anchor points, and measure the corresponding N2 signal reception strengths and N2 path losses of these N2 reference signals. Then, the first device can determine the aforementioned signal transmission constant C based on these N2 signal reception strengths and N2 path losses.

[0145] It should be further clarified that the anchor device involved in this application refers to a device capable of providing a wireless signal along a direct path to the first device, enabling the first device to measure the signal transmission constant C based on the provided wireless signal. Alternatively, the anchor device involved in this application mainly refers to a device whose transmitted wireless signal can reach the first device through a direct path and be received by the first device. For example, the anchor device involved in this application may be a base station, terminal device, etc., that is communicatively connected to the first device. It should be understood that this application does not limit the specific implementation form of the anchor device.

[0146] In the above implementation, the signal transmission constant C is obtained in real time by measuring the direct signal transmitted between the anchor point device and the first device, which can ensure the accuracy of the value of the signal transmission constant C, and thus ensure the accuracy and reliability of the calculated reflection loss value.

[0147] Optionally, the signal transmission constant C can be equal to the sum of the average signal received strength of N2 reference signals and the average path loss of N2 reference signals. That is, the signal transmission constant C can satisfy the following formula (3):

[0148]

[0149] Among them, RSS m Let RSS be the received signal strength of the m-th reference signal among the N2 reference signals mentioned above. In other words, RSS. mLet d be the signal reception strength of the m-th anchor point among N2 anchor point devices. m Let d be the propagation distance of the m-th reference signal among the N2 reference signals mentioned above. Or, d m Let be the length of the transmission path of the m-th reference signal among the N2 reference signals mentioned above. 10 (d m Let be the path loss of the m-th reference signal. m is a positive integer greater than or equal to 1 and less than or equal to N².

[0150] In the above implementation, the signal transmission constant C is determined by the average signal received strength of N2 reference signals and the average path loss of N2 reference signals. The method is simple and reliable, and can reduce the computational complexity of the reflection loss value.

[0151] The preceding description used the first scattering feature information as including first scattering feature data corresponding to a first polygon. In actual implementation, the first scattering feature information may include multiple first scattering feature data corresponding to multiple first polygons. Each of these multiple first polygons may correspond to a main beam direction. The main beam direction corresponding to any first polygon includes the main beam directions of multiple sensing signals corresponding to multiple scattering points constituting that polygon. For example, if the main beam direction corresponding to any first polygon (for ease of distinction, it will be referred to as first polygon j1 ​​below) includes main beam direction 1 and main beam direction 2, then the first polygon j1 ​​can be reconstructed from multiple scattering points corresponding to multiple first sensing signals whose main beam directions are main beam direction 1 and main beam direction 2. In addition, when only considering scattering points on a single ejection path, one sensing signal corresponds to one scattering point.

[0152] For example, the aforementioned first scattering feature information can be obtained based on N3 first sensing signals. N4 first polygons are reconstructed from some or all of the scattering points corresponding to these N3 first sensing signals, and these N3 first sensing signals correspond to N5 first signal frequencies. N3, N4, and N5 are positive integers greater than or equal to 2. The aforementioned first scattering feature information may include N4*N5 first scattering feature data corresponding to the N4 first polygons, and one first polygon is associated with N5 first scattering feature data. Taking any first polygon j1 ​​among the N4 first polygons as an example, any first polygon j1 ​​is associated with N5 first scattering feature data corresponding to the N5 first signal frequencies. N6 first sensing signals at any of the N5 first signal frequencies (for ease of distinction, they will be described as first signal frequency j2 below) pass through N6 first scattering points. N6 is a positive integer greater than or equal to 1. These N6 first scattering points are used to reconstruct the first polygon j1. It should be understood that the transmitted beams of these N6 first sensing signals are the main beams of the first polygon j1, or in other words, the main beam direction corresponding to the first polygon j1 ​​includes the main beam directions corresponding to these N6 first sensing signals. In this case, the first scattering characteristic data corresponding to the first signal frequency j2 can include the first signal reflection type and / or the first reflection loss parameter corresponding to these N6 first scattering points.

[0153] In other words, among the N3 first sensing signals, N6 of them have a signal frequency of the first signal frequency j2 among the N5 first signal frequencies, and the N6 main beam directions corresponding to these N6 first sensing signals are consistent with the main beam direction of the first polygon j2. Therefore, the N6 first scattering points corresponding to these N6 first sensing signals can be reconstructed to obtain the first polygon j2. Then, the first signal reflection type and / or first reflection loss parameter corresponding to these N6 first sensing signals constitute a first scattering feature data corresponding to the first polygon j2 at the first signal frequency j2. Similarly, among the N3 first sensing signals, N6 of them may also have a signal frequency of the first signal frequency j3 among the N5 first signal frequencies, and the N6 main beam directions corresponding to these N6 first sensing signals are consistent with the main beam direction of the first polygon j2. Therefore, the N6 first scattering points corresponding to these N6 first sensing signals at the first signal frequency j3 can be reconstructed to obtain the first polygon j2. Then, the first signal reflection type and / or first reflection loss parameter corresponding to these N6 first sensing signals constitute a first scattering feature data corresponding to the first polygon j2 at the first signal frequency j3.

[0154] For example, please refer to Table 1-1, which illustrates a first scattering feature information. As shown in Table 1-1, the first scattering feature information may include a first polygon 1 corresponding to eight first scattering feature data points from the first signal frequency F1 to the first signal frequency F8. Specifically, the first polygon 1 is reconstructed from multiple first scattering points corresponding to multiple first sensing signals with a signal frequency of the first signal frequency F1 and main beam directions of main beam directions 1 and 2. Similarly, the first polygon 1 is also reconstructed from multiple first scattering points corresponding to multiple first sensing signals with a signal frequency of the first signal frequency F2 and main beam directions of main beam directions 1 and 2, and so on. Likewise, the first polygon 2 is reconstructed from multiple first scattering points corresponding to multiple first sensing signals with a signal frequency of the first signal frequency F1 and main beam directions of main beam directions 3 and 4. The first polygon 2 is also reconstructed from multiple first scattering points corresponding to multiple first sensing signals with a signal frequency of the first signal frequency F2 and main beam directions of main beam directions 3 and 4, and so on.

[0155] Furthermore, the first scattering feature data corresponding to the first polygon 1 at the first signal frequency F1 may include the signal reflection type of multiple scattering points corresponding to the first polygon 1 at the first signal frequency F1, which is specular reflection in this case. The first scattering feature data corresponding to the first polygon 1 at the first signal frequency F1 may also include the reflection loss value of multiple scattering points corresponding to the first polygon 1 at the first signal frequency F1, which is 30 dB in this case. Similarly, the first scattering feature data corresponding to the first polygon 2 at the first signal frequency F1 may include the signal reflection type of multiple scattering points corresponding to the first polygon 2 at the first signal frequency F1, which is specular reflection in this case. The first scattering feature data corresponding to the first polygon 2 at the first signal frequency F1 may also include the reflection loss value of multiple scattering points corresponding to the first polygon 2 at the first signal frequency F1, which is 27 dB in this case. The specific implementation of other first scattering feature data corresponding to the first polygon 1 and other first scattering feature data corresponding to the second polygon 2 can be found in Table 1-1, and will not be repeated here. In addition, the first scattering feature information may also include the main beam direction corresponding to the first polygon 1, including main beam direction 1 and main beam direction 2. The first scattering feature information may also include the main beam direction corresponding to the first polygon 2, including main beam direction 3 and main beam direction 4. It should be understood that Table 1-1 is merely exemplary. In actual implementation, the first scattering feature information may also include scattering feature data corresponding to other polygons at various signal frequencies, and may also include the main beam direction corresponding to other polygons. This application does not impose specific limitations in this regard. Furthermore, the values ​​shown in Table 1-1 are also merely exemplary and do not have a limiting effect.

[0156] Table 1-1 Information on a First Type of Scattering Characteristics

[0157]

[0158] Scenario 2: The data type of the first scattering feature information is scattering point data.

[0159] In some optional implementations, the first scattering feature information can be obtained based on measurements of the first sensing signal, and the first scattering feature information includes second scattering feature data of N2 second scattering points corresponding to the first sensing signal. Here, N2 is a positive integer greater than or equal to 1. The aforementioned N2 second scattering points can be all scattering points corresponding to the first sensing signal. That is, the first scattering feature information may include scattering feature data of each second scattering point corresponding to the first sensing signal. Optionally, the first scattering feature information may also include the first signal frequency of the first sensing signal.

[0160] For example, the first device can measure the second scattering characteristic data of each second scattering point in the aforementioned N2 second scattering points based on the first sensing signal. Then, the first device can generate first scattering characteristic information based on the second scattering characteristic data of each second scattering point.

[0161] In the above implementation, the scattering feature data of each scattering point corresponding to the first sensing signal is used as the first scattering feature information. This allows the first scattering feature information to more clearly and completely reflect the impact of the sensing environment on the transmission of the wireless signal, thereby making the reliability of the first environment reconstruction result stronger.

[0162] In one optional implementation, the second scattering characteristic data corresponding to any one of the N2 second scattering points i1 may include the second signal reflection type and / or the second reflection loss value of the second scattering point i1.

[0163] For example, the first device can measure the second signal reflection type and the second reflection loss value of each of the N2 second scattering points based on the first sensing signal, and then determine the first scattering feature data corresponding to each second scattering point based on the second signal reflection type and the second reflection loss value of each second scattering point.

[0164] Here, the process for determining the second signal reflection type of the second scattering point i1 and the process for calculating the second reflection loss value of the second scattering point i1 can be found in the preceding sections on determining the first signal reflection type of the first scattering point i2 and calculating the first reflection loss value of the first scattering point i2. Since the processes are similar, they will not be repeated here to avoid redundancy.

[0165] Optionally, there can be one or more first sensing signals. In particular, when there are multiple first sensing signals, the frequencies of the first signals corresponding to these multiple first sensing signals are different.

[0166] For example, please refer to Table 1-2, which shows another type of first scattering characteristic information. As shown in Table 1-2, this first scattering characteristic information may include four second reflection characteristic data corresponding to four second scattering points. These four second scattering points include second scattering point 1, second scattering point 2, second scattering point 3, and second scattering point 4. The signal frequencies of the first sensing signals corresponding to second scattering points 1 to 3 are all first signal frequencies F1. It should be understood that in this case, the main beam directions of the first sensing signals corresponding to second scattering points 1 to 3 are different. The signal frequency of the first sensing signal corresponding to second scattering point 4 is the first signal frequency F2, and the main beam direction of this second sensing signal may or may not be the same as the main beam directions of the first sensing signals corresponding to second scattering points 1 to 3. The second reflection characteristic data corresponding to second scattering point 1 includes the second reflection signal type and the second reflection loss value, which are specular reflection and 30 dB, respectively. The second reflection characteristic data corresponding to second scattering point 2 includes the second reflection signal type and the second reflection loss value, which are specular reflection and 29 dB, respectively. Other similar cases will not be described again. Additionally, the first scattering feature information may also include the first signal frequency of the first sensing signal corresponding to each second scattering point. For example, the first scattering feature information may also include the first signal frequency F1 corresponding to second scattering points 1 to 3 and the first signal frequency F2 corresponding to second scattering point 4. It should be understood that Table 1-2 is merely exemplary; in actual implementation, the first scattering feature information may also include scattering feature data corresponding to other second scattering points, and may also include the first signal frequency corresponding to other scattering points. This application does not impose specific limitations in this regard. Furthermore, the values ​​shown in Table 1-2 are merely exemplary and do not have a limiting effect.

[0167] Table 1-2 Another type of first scattering characteristic information

[0168]

[0169] S202, the first device sends first scattering characteristic information to the second device. Correspondingly, the second device receives the first scattering characteristic information.

[0170] In some feasible implementations, after obtaining the aforementioned first scattering feature information, the first device can send the first scattering feature information to the second device. Correspondingly, the second device can receive the first scattering feature information from the first device. Here, this application does not limit the specific implementation method of transmitting the first scattering feature information between the first device and the second device, as long as it ensures that the second device can correctly receive the first scattering feature information.

[0171] S203, the second device determines the first environment reconstruction result, which includes at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information.

[0172] In some feasible implementations, after acquiring the first scattering feature information, the second device can determine a first environment reconstruction result. This first environment reconstruction result includes at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information. Furthermore, the first environment reconstruction result may also include at least one of first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information. Here, the first spatial feature information is used to characterize the spatial geometric structure properties of the perceived environment.

[0173] In one possible implementation, the first environment reconstruction result can be used by the second device to optimize communication performance or enhance positioning. That is, after determining the first environment reconstruction result, the second device can use it to optimize communication performance or enhance positioning. Here, communication performance optimization includes, but is not limited to: optimizing beamforming, optimizing beam tracking, optimizing base station location deployment, and predicting channel states. Positioning enhancement mainly refers to the second device's ability to optimize the positioning results obtained from its positioning process based on the first environment reconstruction result, thereby improving positioning accuracy.

[0174] In one possible implementation, after obtaining the first environment reconstruction result, the second device can also send the first environment reconstruction result to the first device to ensure information synchronization.

[0175] In one possible implementation, the environmental reflection parameters obtained based on scattering feature information processing include, but are not limited to, the reflectivity of the sensing environment to the sensing signal and the loss coefficient of the sensing signal in the sensing environment. For example, the environmental reflection parameters reconstructed based on the first scattering feature information may include the reflectivity of the sensing environment to the first sensing signal and the loss coefficient of the first sensing signal in the sensing environment.

[0176] In one possible implementation, the spatial structure parameters obtained based on spatial feature information processing include, but are not limited to, the volume of obstacles in the sensing environment and the occlusion range of the sensing signals by the obstacles. For example, the spatial structure parameters reconstructed based on the first spatial feature information may include, for instance, the volume of the first obstacle in the sensing environment and the occlusion range of the first obstacle.

[0177] In one possible implementation, the environmental reconstruction result involved in this application can be an environmental map. For example, the first environmental reconstruction result can be a first environmental map.

[0178] In the above implementation, the first device can provide the second device with a novel sensing result, distinct from spatial feature information, namely, first scattering feature information, thereby enabling the second device to determine a more informative first environment reconstruction result. This first environment reconstruction result includes not only at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information, but also at least one of the first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information. Since the first scattering feature information effectively reflects the impact of the sensing environment on the transmission of wireless signals, and the first spatial feature information effectively reflects the spatial geometric characteristics of the wireless signal transmission environment, this first environment reconstruction result can be used not only for channel state prediction, which helps optimize communication performance, but also for processes such as beamforming, beam tracking, and base station deployment, which also contribute to communication performance optimization. Therefore, using the communication method provided in this application can improve the effectiveness of the sensing result in optimizing communication performance.

[0179] In some feasible implementations, the second device determining the first environment reconstruction result may include: the second device acquiring first spatial feature information. The second device performs environment reconstruction based on the first scattering feature information and the first spatial feature information to obtain the first environment reconstruction result. Here, the first spatial feature information may be existing to the second device, or it may be provided to the second device by the first device together with the first scattering feature information.

[0180] In some feasible implementations, when the first spatial feature information is already available to the second device, the process by which the second device determines the first environment reconstruction result may include: the second device updating the second environment reconstruction result based on the first scattering feature information to obtain the first environment reconstruction result. The second environment reconstruction result includes at least one of the first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information. That is, the second device may add at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information to the second environment reconstruction result, thereby updating and obtaining the first environment reconstruction result.

[0181] In some feasible implementations, under the above scenario one, the first spatial feature information may include the first polygon information corresponding to the first polygon. Here, the first polygon information may include the center coordinates, boundary point (or vertex) coordinates, normal direction, and velocity of the first polygon. Under the above scenario two, the first spatial feature information may include the first scattering point information of the N2 second scattering points. Optionally, the first scattering point information of the second scattering point i1 may include the three-dimensional coordinates, angle information, confidence level, and path power of the second scattering point i1. The first spatial feature information and the first scattering feature information use the same data type, which ensures data type consistency and facilitates subsequent environment reconstruction.

[0182] See also: [Information on possible implementations] Figure 3 , Figure 3 This is another flowchart illustrating a communication method provided in this application. Figure 3 The method shown is applicable to scenario one above. For example... Figure 3 As shown, the method may further include:

[0183] S204, the second device determines the first measurement request.

[0184] In some feasible implementations, the second device may first determine a first measurement request. This first measurement request indicates or includes at least one of the following: first information, second information, third information, or fourth information. The first information may indicate that the data type of the first scattering feature information is polygonal data. The second information may indicate that the data type of the reflection loss parameter in the first scattering feature information is a mean or range value. The third information is used to identify the aforementioned first polygon. The fourth information is used to indicate the first signal frequency of the first sensing signal. In other words, the second device can use the first measurement request to indicate the information structure or format of the first scattering feature information that the first device will report. It should be understood that whether the first measurement request indicates the aforementioned first, second, third, or fourth information can be determined by actual design requirements, and this application does not impose any restrictions on this.

[0185] In one possible implementation, the second device may determine to send a first measurement request to the first device based on at least one of its current scattering feature data acquisition status, its current sensing task requirements, and its load quantity.

[0186] For example, the second device determines that it has not acquired scattering feature data of the first polygon. For instance, the second device determines that its saved environmental map does not include scattering feature data of the first polygon. Simultaneously, the second device also determines that its load count exceeds a first load count threshold. In this case, the second device can generate and send a first measurement request to the first device. Here, the situation where the load count exceeds the first load count threshold can be considered a high-load state for the second device.

[0187] For example, the second device determines that its current sensing task requires acquiring scattering feature data of polygons within a target area, and identifies the first polygon as a polygon within the target area. Here, the target area is a preset area, such as a circular area with radius R centered around the second device. Simultaneously, the second device also determines that its current load quantity is less than a first load quantity threshold but equal to or greater than a second load quantity threshold. In this case, the second device can generate and send a first measurement request to the first device. Here, the situation where the load quantity is less than the first load quantity threshold but equal to or greater than the second load quantity threshold can be considered a medium load state for the second device.

[0188] In the above implementation, when the load is large or moderate but there is a need for scattering feature information, a first measurement request is sent to the first device. On the one hand, this can avoid information redundancy caused by frequent reporting of scattering feature information. On the other hand, it can also adapt the load of the second device to low-overhead scattering feature information (at this time, the data type of the first scattering feature information is polygon data), thereby avoiding excessive load pressure on the second device.

[0189] S205, the second device sends a first measurement request to the first device. Correspondingly, the first device receives the first measurement request.

[0190] In some feasible implementations, after determining the first measurement request, the second device may send the first measurement request to the first device. Correspondingly, the first device receives the first measurement request from the second device.

[0191] In this case, step S201 can be replaced by step S2011.

[0192] S2011, the first device measures and obtains the first scattering feature information based on the first measurement request and the first sensing signal.

[0193] In some possible implementations, after receiving a first measurement request from the second device, the first device can measure the first scattering feature information based on the first measurement request and the first sensing signal.

[0194] For example, when the first device determines that the first measurement request indicates first information, it can determine the data type of the first scattering feature information as polygonal data based on the first information, that is, determine the granularity of the scattering feature data in the first scattering feature information as polygonal. When the first device determines that the first measurement request indicates second information, it can determine the data type of the reflection loss parameter in the first scattering feature information as a mean or range value based on the second information, that is, determine whether the reflection loss parameter in the first scattering feature information is a mean reflection loss or a reflection loss range. When the first device determines that the first measurement request indicates third information, it can determine that the first scattering feature information should include scattering feature data of the first polygon. When the first device determines that the first measurement request indicates fourth information, it can determine the signal frequency of the first sensing signal from which the first scattering feature information is measured as the first signal frequency based on the fourth information. Further, after determining at least one of the data type of the first scattering feature information, the data type of the reflection loss parameter in the first scattering feature information, the number of scattering features of which polygon should be included in the first scattering feature information, and the signal frequency of the first sensing signal, the first device can measure and generate the corresponding first scattering feature information based on the first sensing signal.

[0195] Here, the specific process by which the first device measures the first scattering feature information based on the first sensing signal can be referred to in the corresponding description in step S201 above, and will not be repeated here.

[0196] See also: [Information on possible implementations] Figure 4 , Figure 4 This is another flowchart illustrating a communication method provided in this application. Figure 4 The method shown is applicable to scenario two above. For example... Figure 4 As shown, the method may further include:

[0197] S206, the second device determines the second measurement request.

[0198] In some feasible implementations, before step S201, the second device may first determine a second measurement request. The second device sends the second measurement request to the first device. This second measurement request indicates at least one of the following: fourth information or fifth information. The fourth information indicates the first signal frequency of the first sensed signal. The fifth information indicates that the data type of the first scattering feature information is scattering point data. That is, the second device can instruct the first device, through the second measurement request, on the information structure or format of the first scattering feature information to be reported. It should be understood that whether the first measurement request indicates the aforementioned fourth or fifth information can be determined by the actual needs involved, and this application does not impose any restrictions on this.

[0199] In one possible implementation, the second device may determine to send a first measurement request to the first device based on at least one of its current scattering feature data acquisition status, its current sensing task requirements, and its load quantity.

[0200] For example, the second device determines that it has not acquired scattering feature data for any scattering point. For instance, the second device determines that its stored environmental map does not include scattering feature data for any scattering point. Simultaneously, the second device also determines that its load count is less than a second load count threshold. In this case, the second device can generate and send a second measurement request to the first device. Here, the situation where the load count is less than the second load count threshold can be considered as the second device being in a low-load state.

[0201] For example, if the sensing task requires obtaining scattering feature data of scattering points with a confidence level equal to or greater than a first confidence threshold, and if the second device determines that the confidence levels of all N2 second scattering points are equal to or greater than the first confidence threshold, and also determines that their load count is less than a first load count threshold but equal to or greater than a second load count threshold, then it can send a second measurement request to the first device. Here, the situation where the load count is less than the first load count threshold but equal to or greater than the second load count threshold can be considered as a medium load state for the second device.

[0202] In the above implementation, when the load is small or moderate but there is a need for scattering feature information, a second measurement request is sent to the first device. On the one hand, this can avoid information redundancy caused by frequent reporting of scattering feature information. On the other hand, if the load condition allows, the first device can be instructed to report more detailed first scattering feature information (at this time, the data type of the first scattering feature information is scattering point data), thereby ensuring the reliability of the first environment reconstruction result.

[0203] S207, the second device sends a second measurement request to the first device. Correspondingly, the first device receives the second measurement request from the second device.

[0204] In some feasible implementations, after determining the second measurement request, the second device may send the second measurement request to the first device. Correspondingly, the first device receives the second measurement request from the second device.

[0205] In this case, step S201 can be replaced by step S2012.

[0206] S2012, the first device obtains the first scattering feature information based on the second measurement request and the first sensing signal.

[0207] In some possible implementations, after receiving a first measurement request from the second device, the first device can measure the first scattering feature information based on the first measurement request and the first sensing signal.

[0208] For example, when the first device determines that the second measurement request indicates fourth information, it can determine the signal frequency of the first sensing signal from which the first scattering feature information is measured as the first signal frequency based on the fourth information. When the first device determines that the second measurement request indicates fifth information, it can determine the data type of the first scattering feature information as scattering point data based on the fifth information, that is, determine the granularity of the scattering feature data in the first scattering feature information as scattering points. Further, after determining at least one of the data type of the first scattering feature information and the signal frequency of the first sensing signal, the first device can measure and generate the corresponding first scattering feature information based on the first sensing signal.

[0209] Here, the specific process by which the first device measures the first scattering feature information based on the first sensing signal can be referred to in the corresponding description in step S201 above, and will not be repeated here.

[0210] For some feasible implementation methods, please refer to Figure 5 , Figure 5 This is another flowchart illustrating a communication method provided in this application. For example... Figure 5 As shown, the method also includes the following steps:

[0211] S208, the second device sends a third measurement request to the first device. Accordingly, the first device receives the third measurement request.

[0212] In some feasible implementations, prior to step S201, the second device may also send a third measurement request to the first device. Accordingly, the first device receives the third measurement request.

[0213] The third measurement request may indicate at least one of the following: a sixth message or a seventh message. The sixth message may be used to instruct the first device to report the second spatial feature information and second scattering feature information corresponding to all the scattering points it has measured. Alternatively, the sixth message may be used to instruct the first device to determine the scattering point information and scattering feature data of all the scattering points it has measured as the second spatial feature information and the second scattering feature information, respectively, and report them to the second device. The seventh message may be used to indicate that the data type of the second spatial feature information and the second scattering feature information is scattering point data. It can be understood that the second device can use the third measurement request to instruct the first device to report the scattering point information and scattering feature data of all the scattering points it has measured, respectively, at the scattering point granularity, to the second device.

[0214] Optionally, the second device may generate and send the aforementioned third measurement request to the first device if it determines that it does not contain scattering point information and scattering characteristic data of any scattering point (e.g., it has not yet stored any environment map, or the content of its stored environment map is empty).

[0215] Optionally, the second device may send a third measurement request to the first device if it has not obtained the spatial feature information and scattering feature information corresponding to any scattering point. For example, the second device may send the aforementioned third measurement request when it first requests the first device to provide spatial feature information and scattering feature information.

[0216] S209, the first device determines the second spatial feature information and the second scattering feature information according to the third measurement request.

[0217] In some feasible implementations, after receiving a third measurement request from the second device, the first device can measure the first scattering feature information based on the third measurement request and the first sensing signal.

[0218] For example, when the first device determines that the third measurement request indicates sixth information, it can determine, based on the sixth information, that it needs to measure the scattering point information and scattering characteristic data of all scattering points corresponding to all sensing signals it can receive. When the first device determines that the third measurement request indicates seventh information, it can determine, based on the seventh information, that the data type of the second spatial feature information and the second scattering feature information it will report is scattering point data, that is, that the second spatial feature information includes the scattering point information of all scattering points corresponding to all sensing signals it can receive, and that the granularity of the scattering feature data in the second scattering feature information is scattering points. Further, the first device can determine the scattering point information and scattering characteristic data of each scattering point corresponding to all sensing signals it can receive. Then, the first device can generate the second spatial feature information based on the scattering point information of each scattering point corresponding to these sensing signals, and generate the second scattering feature information based on the scattering characteristic data of each scattering point corresponding to these sensing signals. Here, the specific process of the first device determining the second scattering feature information can be referred to the process of the first device determining the first scattering feature information described above, and will not be repeated here.

[0219] S210, the first device sends the second spatial feature information and the second scattering feature information to the second device. Correspondingly, the second device receives the second spatial feature information and the second scattering feature information.

[0220] In some feasible implementations, after determining the second spatial feature information and the second scattering feature information, the first device can also send the second spatial feature information and the second scattering feature information to the second device. Correspondingly, the second device receives the second spatial feature information and the second scattering feature information.

[0221] S211, the second device determines the second environment reconstruction result based on the second spatial feature information and the second scattering feature information.

[0222] In some feasible implementations, after acquiring the second spatial feature information and the second scattering feature information, the second device can determine the second environment reconstruction result based on the second spatial feature information and the second scattering feature information. The second environment reconstruction result may include at least one of the second scattering feature information or environmental reflection parameters reconstructed based on the second scattering feature information, and at least one of the second spatial feature information or spatial structure parameters reconstructed based on the second spatial feature information.

[0223] In one possible implementation, the results of the second environment reconstruction can also be used by the second device to optimize communication performance or enhance positioning.

[0224] It should be understood that Figure 5 Therefore Figure 3 The method shown is an example; in actual implementation, the method described in steps S208 to S211 can also be... Figure 4 The methods shown are combined. The specific implementation method is as follows: Figure 5 The content shown is similar, so it will not be repeated here.

[0225] It should be noted that the signal frequencies of the various sensing signals involved in this application can also be referred to as the sampling frequency, measurement frequency, etc., of the various scattering characteristic information and / or spatial characteristic information.

[0226] It should also be noted that, in the embodiments of this application, the sensing signal received by the first device can be transmitted by the second device, or by other devices besides the first and second devices, or by the first device itself. This application does not impose any specific restrictions on this.

[0227] It should also be noted that the preceding explanation used the example of the first device providing the first scattering feature information to the second device. In actual implementation, if the second device has sensing capabilities, it can also measure the first scattering feature information itself. That is, the second device can directly measure the aforementioned first scattering feature information based on the received sensing signal and further determine the aforementioned first environment reconstruction result. The process by which the second device determines the first scattering feature information can be referred to in conjunction with the process by which the first device determines the first scattering feature information, and will not be elaborated upon here.

[0228] The above, combined with Figures 2 to 5 The communication method provided in the embodiments of this application is described in detail below. Figures 6 to 8 The communication device provided in the embodiments of this application is described in detail. It should be understood that the description of the embodiments of the communication device corresponds to the description of the embodiments of the communication method; therefore, any parts not described in detail can be referred to the foregoing method embodiments.

[0229] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a communication device provided in this application. Figure 6 As shown, the communication device 60 may include a transceiver unit 61 and a processing unit 62. Here, the transceiver unit 61 may also be referred to as a transceiver module, and the processing unit 62 may also be referred to as a processing module.

[0230] In some feasible implementations, the communication device 60 can correspond to Figures 2 to 5 The first device shown, or a component (such as a circuit, processor, chip, or chip system) configured in the first device. The communication device 60 may include implementations of... Figures 2 to 5 The module, unit, or means corresponding to the method performed by the first device shown can be implemented in hardware, software, or by hardware executing corresponding software. The software or hardware includes one or more modules or units corresponding to the aforementioned functions.

[0231] In a specific implementation, processing unit 62 can be used to determine first scattering feature information, wherein the first scattering feature information is used to characterize the reflection characteristics of the sensing environment to the sensing signal. Transceiver unit 61 can be used to transmit the first scattering feature information. The first scattering feature information is used to determine a first environment reconstruction result, which includes at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information, and at least one of first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information. The first spatial feature information is used to characterize the spatial geometric structure characteristics of the sensing environment.

[0232] For example, the first scattering feature information is obtained based on the measurement of the first sensing signal, and the first polygon is reconstructed from the N1 first scattering points corresponding to the first sensing signal, where N1 is a positive integer greater than or equal to 3. The first scattering feature information includes the first scattering feature data corresponding to the first polygon, and at least one of the following: the first signal frequency of the first sensing signal or the main beam direction of the first polygon.

[0233] For example, the first scattering feature data includes the first signal reflection type corresponding to N1 first scattering points and / or the first reflection loss parameter corresponding to N1 first scattering points.

[0234] For example, the first reflection loss parameter includes at least one of the following: the average reflection loss of N1 first scattering points, and the reflection loss range of N1 first scattering points.

[0235] For example, the transceiver unit 61 is configured to receive a first measurement request, wherein the first measurement request indicates at least one of the following: first information, second information, third information, or fourth information; the first information indicates that the data type of the first scattering feature information is polygonal data; the second information indicates that the data type of the reflection loss parameter in the first scattering feature information is a mean or range value; the third information identifies the first polygon; and the fourth information indicates the first signal frequency of the first sensing signal. The processing unit 62 is configured to measure the first scattering feature information according to the first measurement request and the first sensing information.

[0236] For example, the first scattering feature information is obtained based on the measurement of the first sensing signal. The first scattering feature information includes the second scattering feature data of N2 second scattering points corresponding to the first sensing signal, where N2 is a positive integer greater than or equal to 1.

[0237] For example, the second scattering feature data corresponding to any one of the N2 second scattering points i1 includes the second signal reflection type and / or the second reflection loss value of the second scattering point i1.

[0238] For example, the transceiver unit 61 is configured to receive a second measurement request, wherein the second measurement request indicates at least one of the following: fourth information or fifth information, wherein the fourth information is used to indicate a first signal frequency of the first sensing signal, and the fifth information is used to indicate that the data type of the first scattering feature information is scattering point data. The processing unit 62 is configured to measure the first scattering feature information according to the second measurement request and the first sensing information.

[0239] For example, transceiver unit 61 can be used to receive a third measurement request, wherein the third measurement request indicates at least one of the following: a sixth message or a seventh message, wherein the sixth message indicates that the second spatial feature information and the second scattering feature information corresponding to all measured scattering points should be reported, and the seventh message indicates that the data type of the second spatial feature information and the second scattering feature information is scattering point data. Processing unit 62 can be used to measure the second spatial feature information and the second scattering feature information according to the third measurement request and the second sensing signal, wherein the second spatial feature information includes the second scattering point information of all third scattering points corresponding to the second sensing signal, and the second scattering feature information includes the third scattering feature data of all third scattering points. Transceiver unit 61 can be used to transmit the second spatial feature information and the second scattering feature information, wherein the second spatial feature information and the second scattering feature information are used to determine a second environment reconstruction result, the second environment reconstruction result including at least one of the second scattering feature information or environmental reflection parameters reconstructed based on the second scattering feature information, and at least one of the second spatial feature information or spatial structure parameters reconstructed based on the second spatial feature information.

[0240] In some feasible implementations, the communication device 60 can correspond to Figures 2 to 5 The second device shown, or a component (such as a circuit, processor, chip, or chip system) configured in the second device. The communication device 60 may include implementations of... Figures 2 to 5 The modules, units, or means corresponding to the method performed by the second device shown can be implemented in hardware, software, or by hardware executing corresponding software. The software or hardware includes one or more modules or units corresponding to the aforementioned functions.

[0241] For example, the transceiver unit 61 is used to acquire first scattering feature information, wherein the first scattering feature information is used to characterize the reflection characteristics of the sensing environment to the sensing signal. The processing unit 62 is used to determine a first environment reconstruction result, wherein the first environment reconstruction result includes at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information, and at least one of the first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information, wherein the first spatial feature information is used to characterize the spatial geometric structure characteristics of the sensing environment.

[0242] For example, the first scattering feature information is obtained based on the measurement of the first sensing signal, and the first polygon is reconstructed from the N1 first scattering points corresponding to the first sensing signal, where N1 is a positive integer greater than or equal to 3;

[0243] The first scattering feature information includes the first scattering feature data corresponding to the first polygon, and at least one of the following: the first signal frequency of the first sensing signal or the main beam direction of the first polygon.

[0244] For example, the first scattering feature data includes the first signal reflection type corresponding to N1 first scattering points and / or the first reflection loss parameter corresponding to N1 first scattering points.

[0245] For example, the first reflection loss parameter includes at least one of the following: the average reflection loss corresponding to N1 first scattering points, and the reflection loss range corresponding to N1 first scattering points.

[0246] For example, the transceiver unit 61 is used to send a first measurement request, wherein the first measurement request indicates at least one of the following: first information, second information, third information or fourth information, the first information is used to indicate that the data type of the first scattering feature information is polygon data, the second information is used to indicate that the data type of the reflection loss parameter in the first scattering feature information is mean or range value, the third information is used to identify the first polygon, and the fourth information is used to indicate the first signal frequency of the first sensing signal.

[0247] For example, the processing unit 62 is used to trigger the transceiver unit 61 to send a first measurement request when no scattering feature data of the first polygon is acquired and the number of loads is greater than the first load number threshold, or when the perception task requires acquiring scattering feature data of polygons in the target area, the first polygon is a polygon in the target area, and the number of loads is less than the first load number threshold and equal to or greater than the second load number threshold.

[0248] For example, the first scattering feature information is obtained based on the measurement of the first sensing signal. The first scattering feature information includes the second scattering feature data of N2 second scattering points corresponding to the first sensing signal, where N2 is a positive integer greater than or equal to 1.

[0249] For example, the second scattering feature data corresponding to any one of the N2 second scattering points i1 includes the second signal reflection type and / or the second reflection loss value of the second scattering point i1.

[0250] For example, the transceiver unit 61 is configured to send a second measurement request, wherein the second measurement request indicates at least one of the following: a fourth information or a fifth information, wherein the fourth information is used to indicate a first signal frequency of the first sensing signal, and the fifth information is used to indicate that the data type of the first scattering feature information is scattering point data.

[0251] For example, the processing unit 62 is used to trigger the transceiver unit 61 to send a second measurement request when no scattering feature data of any scattering point is acquired and the number of loads is less than the second load number threshold, or when the perception task requires acquiring scattering feature data of scattering points with a confidence level equal to or greater than the first confidence level threshold, the confidence levels of N2 second scattering points are all equal to or greater than the first confidence level threshold, and the number of loads is less than the first load number threshold but equal to or greater than the second load number threshold.

[0252] For example, transceiver unit 61 is configured to send a third measurement request, wherein the third measurement request indicates at least one of the following: a sixth message or a seventh message, wherein the sixth message indicates that the second spatial feature information and the second scattering feature information corresponding to all measured scattering points are reported, and the seventh message indicates that the data type of the second spatial feature information and the second scattering feature information is scattering point data. Transceiver unit 61 is configured to receive the second spatial feature information and the second scattering feature information, wherein the second spatial feature information includes the second scattering point information of all third scattering points corresponding to the second sensing signal, and the second scattering feature information includes the third scattering feature data of all third scattering points. Processing unit 62 determines a second environment reconstruction result based on the second spatial feature information and the second scattering feature information, wherein the second environment reconstruction result includes at least one of the second scattering feature information or environmental reflection parameters reconstructed based on the second scattering feature information, and at least one of the second spatial feature information or spatial structure parameters reconstructed based on the second spatial feature information.

[0253] Please see Figure 7 , Figure 7 This is a schematic diagram of another communication device provided in this application. The communication device 70 can be used for... Figures 2 to 5 The operations performed by the first device or the second device in the communication method shown. The communication device 70 includes: a processor 71.

[0254] Optionally, the communication device may also include a memory 72.

[0255] Memory 72 is used to store related instructions and data. Memory 72 stores the following elements: executable modules or data structures, or subsets thereof, or extended sets thereof:

[0256] Operation instructions: This includes various operation instructions used to perform various operations.

[0257] Operating system: includes various system programs used to implement various basic business functions and handle hardware-based tasks.

[0258] Figure 7Only one memory is shown in the image; of course, multiple memory can be configured as needed.

[0259] Optionally, the communication device 70 may further include a transceiver 74. The transceiver 74 may be a communication module or a transceiver circuit. In the embodiments of this application, the transceiver 74 is used to perform the above-described... Figures 2 to 5 The message or information sending and receiving operations involved in the communication method shown.

[0260] Processor 71 can be a controller, a general-purpose processor, a digital signal processor (DSP), 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. Processor 71 can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0261] Optionally, the communication device may also include a bus system 73. In specific applications, the various components of the communication device 70 are coupled together through the bus system 73, which, in addition to a data bus, may also include a power bus, a control bus, and a status signal bus, etc. However, for the sake of clarity, in... Figure 7 The various buses are all labeled as Bus System 73. For ease of representation, Figure 7 The image shown is only schematic.

[0262] In specific implementation, the communication device 70 can perform... Figures 2 to 5 The steps performed by the first device or the second device in the illustrated communication method. Specifically, when the communication device 70 is used to implement the above... Figures 2 to 5 In the communication method shown, when each step is performed by the first device or the second device, the processor 71 can implement the function of the processing unit 62, and the transceiver 74 is used to implement the function of the transceiver unit 61.

[0263] It should be noted that in practical applications, the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed by the integrated logic circuits in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.

[0264] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memory.

[0265] This application also provides a computer-readable medium having a computer program stored thereon, which, when executed by a computer, implements... Figures 2 to 5 The steps of the method performed by the first device or the second device in the communication method shown.

[0266] This application also provides a computer program product that, when executed by a computer, performs the above-described functions. Figures 2 to 5 The steps of the method performed by the first device or the second device in the communication method shown.

[0267] This application also provides a chip, which includes at least a processor. The processor is used to execute computer execution instructions to cause a device on which the chip is mounted to perform... Figures 2 to 5 The steps of the method performed by the first device or the second device in the communication method shown.

[0268] Optionally, the chip may also include interface circuitry. This interface circuitry is used to receive computer execution instructions and transmit them to the processor.

[0269] This application also provides a chip system including a processor for supporting the implementation of the above-described embodiments by means of a device mounted on the chip system. Figures 2 to 5 The steps of the communication method described herein, performed by the first or second device, include, for example, generating or processing the data and / or information involved in the method. In one possible design, the chip system further includes a memory for storing program instructions and data necessary for the data transmitting device. The chip system may be composed of chips or may include chips and other discrete components.

[0270] Please see Figure 8 , Figure 8 This is a schematic diagram of another communication device provided in this application. The communication device 80 may include a processor 81 and an interface circuit 82. The interface circuit 82 can be used to receive signals from other communication devices besides the communication device 80 and transmit them to the processor, or to send signals from the processor to other communication devices besides the communication device 80. The processor 81 can be used to implement the communication method described in the preceding embodiments through logic circuits or by executing computer programs or instructions.

[0271] In some possible designs, the communication device 80 can be Figures 2 to 5 The first or second device in the communication method shown includes a device, such as a chip system.

[0272] This application also provides a communication system. This communication system includes at least the first device and the second device described above. The first device and the second device work together to implement the communication method described in the preceding embodiments.

[0273] In the above method embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital video disc (DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0274] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions between different embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0275] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

[0276] The above description is merely a preferred embodiment of the technical solution of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A communication method, characterized in that, The method, applicable to a first device or a means within a first device, comprises: Determine the first scattering feature information, wherein the first scattering feature information is used to characterize the reflection characteristics of the sensing environment to the sensing signal; Send the first scattering feature information, wherein the first scattering feature information is used to determine a first environment reconstruction result, the first environment reconstruction result includes at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information, and at least one of the first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information, wherein the first spatial feature information is used to characterize the spatial geometric structure characteristics of the perceived environment.

2. The method according to claim 1, characterized in that, The first scattering feature information is obtained based on the measurement of the first sensing signal, and the first polygon is reconstructed from the N1 first scattering points corresponding to the first sensing signal, where N1 is a positive integer greater than or equal to 3; The first scattering feature information includes first scattering feature data corresponding to the first polygon, and at least one of the following: the first signal frequency of the first sensing signal or the main beam direction of the first polygon.

3. The method according to claim 2, characterized in that, The first scattering feature data includes the first signal reflection type corresponding to the N1 first scattering points and / or the first reflection loss parameter corresponding to the N1 first scattering points.

4. The method according to claim 2 or 3, characterized in that, The first reflection loss parameter includes at least one of the following: the average reflection loss of the N1 first scattering points, and the reflection loss range of the N1 first scattering points.

5. The method according to any one of claims 2-4, characterized in that, The method further includes: Receive a first measurement request, wherein the first measurement request indicates at least one of the following: first information, second information, third information or fourth information, the first information is used to indicate that the data type of the first scattering feature information is polygon data, the second information is used to indicate that the data type of the reflection loss parameter in the first scattering feature information is mean or range value, the third information is used to identify the first polygon, and the fourth information is used to indicate the first signal frequency of the first sensing signal. The determination of the first scattering feature information includes: The first scattering feature information is obtained by measuring the first measurement request and the first sensing information.

6. The method according to claim 1, characterized in that, The first scattering feature information is obtained based on the measurement of the first sensing signal. The first scattering feature information includes the second scattering feature data of N2 second scattering points corresponding to the first sensing signal, where N2 is a positive integer greater than or equal to 1.

7. The method according to claim 6, characterized in that, The second scattering characteristic data corresponding to any one of the N2 second scattering points i1 includes the second signal reflection type and / or the second reflection loss value of the second scattering point i1.

8. The method according to claim 6 or 7, characterized in that, The method further includes: Receive a second measurement request, wherein the second measurement request indicates at least one of the following: a fourth information or a fifth information, wherein the fourth information is used to indicate a first signal frequency of the first sensed signal, and the fifth information is used to indicate that the data type of the first scattering feature information is scattering point data; The determination of the first scattering feature information includes: The first scattering feature information is obtained by measuring the second measurement request and the first sensing information.

9. The method according to any one of claims 1-8, characterized in that, The method further includes: Receive a third measurement request, wherein the third measurement request indicates at least one of the following: a sixth information or a seventh information, wherein the sixth information is used to indicate the second spatial feature information and the second scattering feature information corresponding to all the measured scattering points reported, and the seventh information is used to indicate that the data type of the second spatial feature information and the second scattering feature information is scattering point data; The second spatial feature information and the second scattering feature information are obtained according to the third measurement request and the second sensing signal, wherein the second spatial feature information includes the second scattering point information of all third scattering points corresponding to the second sensing signal, and the second scattering feature information includes the third scattering feature data of all third scattering points; Send the second spatial feature information and the second scattering feature information, wherein the second spatial feature information and the second scattering feature information are used to determine the second environment reconstruction result, the second environment reconstruction result includes at least one of the second scattering feature information or environmental reflection parameters reconstructed based on the second scattering feature information, and at least one of the second spatial feature information or spatial structure parameters reconstructed based on the second spatial feature information.

10. A communication method, characterized in that, The method is applicable to a second device or a device within a second device, and the method includes: Acquire first scattering feature information, wherein the first scattering feature information is used to characterize the reflection characteristics of the sensing environment to the sensing signal; A first environment reconstruction result is determined, wherein the first environment reconstruction result includes at least one of the first scattering feature information or environmental reflection parameters reconstructed based on the first scattering feature information, and at least one of the first spatial feature information or spatial structure parameters reconstructed based on the first spatial feature information, wherein the first spatial feature information is used to characterize the spatial geometric structure characteristics of the perceived environment.

11. The method according to claim 10, characterized in that, The first scattering feature information is obtained based on the measurement of the first sensing signal, and the first polygon is reconstructed from the N1 first scattering points corresponding to the first sensing signal, where N1 is a positive integer greater than or equal to 3; The first scattering feature information includes first scattering feature data corresponding to the first polygon, and at least one of the following: the first signal frequency of the first sensing signal or the main beam direction of the first polygon.

12. The method according to claim 11, characterized in that, The first scattering feature data includes the first signal reflection type corresponding to the N1 first scattering points and / or the first reflection loss parameter corresponding to the N1 first scattering points.

13. The method according to claim 11 or 12, characterized in that, The first reflection loss parameter includes at least one of the following: the average reflection loss corresponding to the N1 first scattering points, and the reflection loss range corresponding to the N1 first scattering points.

14. The method according to any one of claims 11-13, characterized in that, The method further includes: Send a first measurement request, wherein the first measurement request indicates at least one of the following: first information, second information, third information, or fourth information, the first information indicating that the data type of the first scattering feature information is polygon data, the second information indicating that the data type of the reflection loss parameter in the first scattering feature information is mean or range value, the third information identifying the first polygon, and the fourth information indicating the first signal frequency of the first sensing signal.

15. The method according to claim 14, characterized in that, Sending the first measurement request includes: If the scattering feature data of the first polygon is not acquired and the number of loads is greater than the first load number threshold, or if the perception task requires acquiring the scattering feature data of polygons within the target area, where the first polygon is a polygon within the target area, and the number of loads is less than the first load number threshold but equal to or greater than the second load number threshold, a first measurement request is sent.

16. The method according to claim 10, characterized in that, The first scattering feature information is obtained based on the measurement of the first sensing signal. The first scattering feature information includes the second scattering feature data of N2 second scattering points corresponding to the first sensing signal, where N2 is a positive integer greater than or equal to 1.

17. The method according to claim 16, characterized in that, The second scattering characteristic data corresponding to any one of the N2 second scattering points i1 includes the second signal reflection type and / or the second reflection loss value of the second scattering point i1.

18. The method according to claim 17, characterized in that, The method further includes: Send a second measurement request, wherein the second measurement request indicates at least one of the following: a fourth information or a fifth information, wherein the fourth information is used to indicate a first signal frequency of the first sensed signal, and the fifth information is used to indicate that the data type of the first scattering feature information is scattering point data.

19. The method according to claim 18, characterized in that, Sending the second measurement request includes: If no scattering feature data is acquired for any scattering point and the number of loads is less than the second load number threshold, or if the sensing task requires acquiring scattering feature data for scattering points with a confidence level equal to or greater than the first confidence threshold, the confidence levels of the N2 second scattering points are all equal to or greater than the first confidence threshold, and the number of loads is less than the first load number threshold but equal to or greater than the second load number threshold, a second measurement request is sent.

20. The method according to any one of claims 10-19, characterized in that, The method further includes: Send a third measurement request, wherein the third measurement request indicates at least one of the following: a sixth message or a seventh message, wherein the sixth message is used to indicate the reporting of second spatial feature information and second scattering feature information corresponding to all measured scattering points, and the seventh message is used to indicate that the data type of the second spatial feature information and the second scattering feature information is scattering point data; Receive second spatial feature information and second scattering feature information, wherein the second spatial feature information includes second scattering point information of all third scattering points corresponding to the second sensing signal, and the second scattering feature information includes third scattering feature data of all third scattering points; A second environment reconstruction result is determined based on the second spatial feature information and the second scattering feature information, wherein the second environment reconstruction result includes at least one of the second scattering feature information or environmental reflection parameters reconstructed based on the second scattering feature information, and at least one of the second spatial feature information or spatial structure parameters reconstructed based on the second spatial feature information.

21. A communication device, characterized in that, The communication device includes a unit for implementing the communication method as described in any one of claims 1-9 or 10-20.

22. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed, implements the communication method as described in any one of claims 1-9 or 10-20.

23. A chip system, characterized in that, Including the processor; The processor is configured to execute computer execution instructions to cause a device equipped with the chip system to perform the communication method as described in any one of claims 1-9 or 10-20.

24. The chip system according to claim 23, characterized in that, The chip system also includes an interface circuit, which is used to receive computer execution instructions and transmit them to the processor.

25. A computer program product, said computer program product being executed by a computer using the communication method as described in any one of claims 1-9 or 10-20.

26. A communication device, characterized in that, include: At least one processor and memory; The memory is used to store computer programs; The processor is configured to execute a computer program stored in the memory, so that the communication device performs the communication method as described in any one of claims 1-9 or 10-20.

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