Communication method and apparatus

Abstract

A communication method and apparatus, which relate to the field of communications. A network device obtains the state of a terminal device in a sensing process, and performs sensing imaging on the basis of the state of the terminal device, so as to improve the clarity of sensing imaging. In the method, the terminal device reports to a network device the state of the terminal device in a sensing process by means of first information, such that the network device obtains state information of the terminal device in the sensing process, and thus an echo signal can be processed on the basis of the state of the terminal device in the sensing process, so as to obtain echo data, and sensing imaging can be performed on the basis of the echo data, thereby improving the clarity of sensing imaging.

Description

Communication methods and devices

[0001] This application claims priority to Chinese Patent Application No. 202510202403.2, filed on February 22, 2025, entitled "Communication Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communications, and more particularly to communication methods and apparatus. Background Technology

[0003] In mobile communication systems, Integrated Sensing and Communication (ISAC) imaging technology can utilize radio waves traditionally used for data transmission to capture and analyze environmental features, achieving high-resolution imaging of the physical world. Therefore, it can integrate communication and sensing functions into the same system without adding extra hardware. Specifically, ISAC technology can use existing communication facilities to send sensing signals and receive reflected echo signals, thereby constructing an image or model of the surrounding environment. However, due to factors such as the diffraction limit of electromagnetic waves and antenna size, ISAC imaging technology still faces some challenges and limitations in terms of image clarity.

[0004] Therefore, how to improve the imaging clarity of ISAC imaging technology in order to obtain higher precision sensing capabilities is an urgent problem to be solved. Summary of the Invention

[0005] This application provides a signal processing method and apparatus that can improve the clarity of sensor imaging.

[0006] Firstly, this application provides a communication method that can be executed by a terminal device. Unless otherwise specified, "terminal device" in this application can refer to the terminal device itself, or a component in the terminal device (e.g., a circuit or chip responsible for communication functions (such as a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip containing a modem core) or a system-in-package (SIP) chip), or a logic module or software that can implement all or part of the functions of the terminal device.

[0007] Taking the application of this method to a terminal device as an example, in this method: the terminal device sends first information, which indicates the state of the terminal device during the sensing process. In the sensing imaging implementation, the echo signals of the sensing signal are weighted and / or filtered according to the first information to obtain echo data for sensing imaging. The echo signal is either the original echo signal reflected by the sensing imaging target or a second echo signal after preprocessing the original echo signal. By filtering the echo data corresponding to a terminal device with a stable motion state to participate in the sensing imaging calculation, and / or increasing the weight of the echo data corresponding to a terminal device with a stable motion state in the sensing imaging calculation, the accumulated phase error and / or distance error of the echo signals of the sensing signal during the sensing imaging process is reduced, thereby improving the clarity of the sensing imaging.

[0008] In one possible design, the first information sent by the terminal device includes its acceleration information during the sensing process. It is understandable that if the terminal device's acceleration during sensing is too large, its actual trajectory will deviate from the pre-designed ideal path. This deviation will lead to geometric distortion of the perceived imaging target and ultimately affect the clarity of the generated image. Furthermore, excessive acceleration during sensing (such as speed fluctuations or attitude changes) will introduce random phase errors into the echo signal of the sensing signal. These phase errors will affect the azimuth compression effect during sensing imaging, resulting in defocusing in the generated image. Therefore, by selecting echo data from terminal devices with stable motion states for participation in the sensing imaging calculation, and / or increasing the weight of echo data from stable terminal devices in the calculation, geometric distortion of the generated image can be reduced and defocusing can be suppressed, thereby improving the clarity of the sensing image.

[0009] In one possible design, the acceleration information of the terminal device includes at least one of the following: linear acceleration value and angular acceleration value. The linear acceleration value of the terminal device includes at least one of the following: linear acceleration measurement value, linear acceleration metric value, and linear acceleration quantization index. The angular acceleration value of the terminal device includes at least one of the following: angular acceleration measurement value, angular acceleration metric value, and angular acceleration quantization index. The acceleration metric value of the terminal device includes at least one of the following: the average value of the acceleration measurement value, the maximum absolute value of the acceleration measurement value, the average absolute value of the acceleration measurement value, the variance of the acceleration measurement value, the projection of the acceleration measurement value in a certain direction, and the component of the acceleration measurement value in a certain direction. The acceleration quantization index of the terminal device is the result of comparing the acceleration measurement value or acceleration metric value of the terminal device with a quantization and grading threshold. The coordinate system corresponding to the acceleration measurement value of the terminal device is either the global coordinate system or the local coordinate system in which the terminal device is located. The local coordinate system in which the terminal device is located is a coordinate system relative to the terminal device, and this coordinate system changes as the terminal device moves or rotates. The linear acceleration values ​​of the terminal device include at least one of the following: linear acceleration values ​​along the x-axis, linear acceleration values ​​along the y-axis, and linear acceleration values ​​along the z-axis. The angular acceleration values ​​of the terminal device include at least one of the following: angular acceleration values ​​for roll, pitch, and yaw.

[0010] In one possible design, weighting and / or filtering the echo signals of the sensed signal includes: applying a corresponding weighting coefficient to the echo signal corresponding to the acceleration information to obtain echo data, wherein the weighting coefficient is calculated based on the acceleration information according to the mapping function; and / or filtering the echo signals corresponding to acceleration information less than a first threshold as echo data, wherein the echo signal is the original echo signal reflected by the sensed imaging target or the second echo signal after preprocessing the original echo signal.

[0011] In one possible design, the first information sent by the terminal device also includes directional information of the terminal device during the sensing process. This directional information indicates the direction of the terminal device relative to the sensing imaging target, i.e., the direction corresponding to the line connecting the terminal device and the sensing imaging target. The network device calculates the projection value of the linear acceleration value in the direction indicated by the directional information, and uses this projection value as a new metric to process the echo signal based on a mapping function or threshold. The network device calculates the roll angle acceleration component and / or pitch angle acceleration component of the angular acceleration value in a local coordinate system with the direction indicated by the z-axis as the z-axis, and processes this metric value in the echo signal based on a mapping function or threshold. The echo signal is either the original echo signal reflected by the sensing signal from the sensing imaging target or a second echo signal after preprocessing the original echo signal. Because the projection of the linear acceleration in the direction indicated by the directional information, as well as the roll angle and pitch angle components of the angular acceleration in a local coordinate system with the direction indicated by the z-axis as the z-axis, can more accurately reflect their impact on the sensing imaging result, the accuracy of the sensing imaging is improved.

[0012] In one possible design, the first information sent by the terminal device indicates its state at the moment of sending or receiving the raw echo signal of the sensing signal. That is, the terminal device only acquires its state information during the sensing process and sends its state information at that moment, thus minimizing the air interface signaling overhead for sending the sensing state information. Furthermore, before reporting the echo signal of the sensing signal to the network device, the raw echo signal can be preprocessed to obtain a second echo signal. Preprocessing methods for the raw echo signal include, but are not limited to, pulse compression, filtering, denoising, and Fourier transform. By preprocessing the raw echo signal of the sensing signal, the terminal device reduces the signaling overhead of the reported raw echo signal and the computational resource overhead of the network device.

[0013] In one possible design, the terminal device receives second information about sensing resources used to configure the sensing signals. Consequently, the terminal device transmits sensing signals or receives raw echo signals of sensing signals based on the sensing resources. By performing sensing and imaging using the configured time-frequency resources, the terminal device can effectively avoid conflicts between the electromagnetic wave signals of the sensing and imaging and other signals, and avoid the influence of external electromagnetic interference on the sensing and imaging process.

[0014] In one possible design, the terminal device receives third information instructing it to report and / or measure first information. Upon receiving the third information, the terminal device measures and / or uploads the first information. This reduces the terminal device's energy consumption compared to periodically reporting the first information. Furthermore, compared to the terminal device automatically triggering the reporting of the first information upon sending or receiving the raw echo signal of the sensing signal, this improves the flexibility of first information reporting.

[0015] In one possible design, the terminal device receives fourth information indicating the type and / or dimension of the acceleration information reported by the terminal device. The type of acceleration information indicates the type of acceleration information in the first information that the terminal device needs to report, such as linear acceleration information and / or angular acceleration information; the dimension information indicates the dimension included in the acceleration information in the first information reported by the terminal device, such as the x-axis or pitch angle. Since the terminal device can measure and / or report the type and / or dimension of acceleration information according to the needs of the network device, the measurement load and reporting overhead of the terminal device are reduced.

[0016] In one possible design, the terminal device receives a fifth piece of information—a quantization grading threshold—used to indicate the state information of the terminal device's sensing process. The terminal device can generate a quantization grading index for the acceleration information based on the acceleration information and the quantization grading threshold. The quantization grading threshold is sent from the network device to the terminal device via the fifth piece of information, improving the flexibility of the acceleration information quantization grading index.

[0017] In one possible design, the terminal device transmits sensing signals and / or receives raw echo signals of the sensing signals during the sensing process. Terminal devices at different locations transmit sensing signals to the sensing imaging target and / or receive raw echo signals of the sensing signals during the sensing process, or terminal devices transmit sensing signals of different frequency bands to the sensing imaging target and / or receive raw echo signals of different frequency bands of the sensing signals during the sensing process. The terminal devices at different locations can be the same terminal device at different times, or different terminal devices at different locations.

[0018] In one possible design, the terminal device sends a sensing signal to the sensing imaging target, and the network device receives the original echo signal of the sensing signal sent by the terminal device reflected by the sensing imaging target.

[0019] In one possible design, the terminal device receives the raw echo signal reflected from the sensing imaging target by the sensing signal emitted by the network device. Since the sensing signal is emitted by the network device, which has greater power than the terminal device, the sensing coverage is improved.

[0020] In one possible design, the terminal device transmits sensing signals and receives the raw echo signals of the sensing signals. Since the terminal device can move freely, this self-transmitting and self-receiving single-base sensing mode, in which the terminal device transmits sensing signals and receives the raw echo signals of the sensing signals, can improve the sensing coverage.

[0021] In one possible design, the access network device receives first information and, based on this information, weights and / or filters the echo signals of the sensed signal to obtain echo data. The access network device then performs sensing imaging based on the echo data. The echo signal is either the original echo signal or a second echo signal obtained after preprocessing the original echo signal. Since the echo data processing for sensing imaging is implemented in the access network device closer to the terminal device, latency can be reduced, network bandwidth pressure can be alleviated, and privacy protection can be improved.

[0022] In one possible design, the core network device receives first information and, based on this information, weights and / or filters the echo signals of the sensed signal to obtain echo data. The core network device then performs sensing and imaging based on the echo data. The echo signal is either the original echo signal or a second echo signal obtained after preprocessing the original echo signal. Since core network devices typically have stronger signal processing capabilities, they can achieve better imaging performance. Furthermore, the centralized computing architecture reduces the hardware investment requirements on edge devices, thus lowering the overall hardware deployment cost.

[0023] Secondly, embodiments of this application provide a communication method that can be executed by a network device. Unless otherwise specified, "network device" in this application can refer to the network device itself, a component within the network device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the network device. Taking the application of this method to a network device as an example, in this method: first information sent by a terminal device is received, the first information indicating the state of the terminal device during the sensing process; the echo signals of the sensing signals are weighted and / or filtered according to the first information to obtain echo data for sensing imaging, wherein the echo signals are the original echo signals reflected by the sensing imaging target or a second echo signal after preprocessing the original echo signals. In this method, the network device receives the first information sent by the terminal device indicating the state of the terminal device during the sensing process, enabling the network device to know the state of the terminal device during the sensing process, and weights and / or filters the echo signals of the corresponding sensing signals according to the state of the terminal device during the sensing process. By selecting echo data from stable motion devices for use in sensing and imaging calculations, and / or increasing the weight of echo data from stable motion devices in these calculations, the cumulative phase error and / or distance error of the original echo signal in the sensing and imaging process is reduced, thereby improving the clarity of the sensing and imaging.

[0024] In one possible design, the network device is either a core network device or an access network device.

[0025] In one possible design, the first information received by the network device includes acceleration information of the terminal device during the sensing process.

[0026] In one possible design, the acceleration information received by the network device from the terminal device includes at least one of the following: linear acceleration value and angular acceleration value. The linear acceleration value of the terminal device includes at least one of the following: linear acceleration measurement value, linear acceleration metric value, and linear acceleration quantization index. The angular acceleration value of the terminal device includes at least one of the following: angular acceleration measurement value, angular acceleration metric value, and angular acceleration quantization index. The acceleration metric value of the terminal device includes at least one of the following: the average value of the acceleration measurement value, the maximum absolute value of the acceleration measurement value, the average absolute value of the acceleration measurement value, the variance of the acceleration measurement value, the projection of the acceleration measurement value in a certain direction, and the component of the acceleration measurement value in a certain direction. The acceleration quantization index of the terminal device is the result of comparing the acceleration measurement value or acceleration metric value of the terminal device with a quantization classification threshold. The coordinate system corresponding to the acceleration measurement value of the terminal device is either a global coordinate system or a local coordinate system in which the terminal device is located. The local coordinate system in which the terminal device is located is a coordinate system relative to the terminal device, and this coordinate system changes as the terminal device moves or rotates. The linear acceleration measurement values ​​include at least one of the following: linear acceleration values ​​along the x-axis, linear acceleration values ​​along the y-axis, and linear acceleration values ​​along the z-axis. The angular acceleration values ​​of the terminal device include at least one of the following: angular acceleration values ​​for roll, pitch, and yaw.

[0027] In one possible design, the network device weights and / or filters the echo signals acquired by the terminal device during the sensing process, including: applying a corresponding weighting coefficient to the echo signal corresponding to the acceleration information to obtain echo data, wherein the weighting coefficient is calculated based on the acceleration information according to the mapping function; and / or filtering the echo signals corresponding to acceleration information less than a first threshold as echo data, wherein the echo signal is the original echo signal reflected by the sensing imaging target or the second echo signal after preprocessing the original echo signal.

[0028] In one possible design, the first information received by the network device also includes orientation information of the terminal device during the sensing process. This orientation information indicates the direction of the terminal device relative to the sensing imaging target, i.e., the direction corresponding to the line connecting the terminal device and the sensing imaging target. The network device calculates the projection value of the linear acceleration value in the direction indicated by the orientation information, and uses this projection value as a new metric to process the echo signal based on a mapping function or a threshold. The network device calculates the roll angle acceleration component and the pitch angle acceleration component of the angular acceleration value in a local coordinate system with the z-axis as the orientation information indication direction, and processes this metric value based on a mapping function or a threshold to process the echo signal. The echo signal is either the original echo signal reflected by the sensing imaging target or a second echo signal after preprocessing the original echo signal.

[0029] In one possible design, the first information received by the network device indicates the state of the terminal device at the moment of sending or receiving the raw echo signal of the sensing signal.

[0030] In one possible design, the network device sends second information about sensing resources for configuring sensing signals.

[0031] In one possible design, the network device sends third information to instruct the terminal device to report and / or measure the first information.

[0032] In one possible design, the network device sends a fourth piece of information indicating the type and / or dimension of the acceleration information reported by the terminal device.

[0033] In one possible design, the network device sends a fifth piece of information—a quantized grading threshold—to indicate the state information of the terminal device's sensing process.

[0034] In one possible design, the network device receives either the original echo signal reflected back from the sensing imaging target by the sensing signal sent by the terminal device, or the echo signal of the sensing signal reported by the terminal device. The echo signal of the sensing signal sent or reported by the terminal device can be the echo signal of sensing signals sent or reported by terminal devices at different locations, or the echo signal of sensing signals sent or reported by the terminal device at different frequency bands. The echo signal is either the original echo signal reflected from the sensing imaging target or a second echo signal after preprocessing the original echo signal. The terminal devices at different locations can be the same terminal device at different times, or different terminal devices at different locations.

[0035] In one possible design, the terminal device sends a sensing signal to the sensing imaging target. The network device receives the raw echo signal reflected back from the sensing imaging target.

[0036] In one possible design, the network device sends a sensing signal to the sensing imaging target. The terminal device receives the raw echo signal reflected back from the sensing imaging target and reports the echo signal to the network device. Here, the echo signal is either the raw echo signal reflected by the sensing imaging target or a second echo signal after preprocessing the raw echo signal.

[0037] In one possible design, the network device receives the echo signal of the sensing signal reported by the terminal device. The echo signal is either the original echo signal reflected by the sensing imaging target or a second echo signal after preprocessing the original echo signal. The sensing signal is also sent by the terminal device.

[0038] In one possible design, the network device receives first information and weights and / or filters the echo signal of the sensing signal according to the first information to obtain echo data. The network device realizes sensing imaging based on the echo data. The echo signal is the original echo signal reflected by the sensing imaging target or the second echo signal after preprocessing the original echo signal.

[0039] The technical effects of the method described in the second aspect can be found in the description of the technical effects of the method described in the first aspect above, and will not be repeated here.

[0040] Thirdly, embodiments of this application provide a communication device that can be applied to the terminal device described in the first aspect to realize the functions performed by the terminal device. The communication device can be the terminal device itself, or it can be a chip, chip system, or system-on-a-chip (SoC) of the terminal device. The communication device can execute the functions performed by the transmitting device via hardware, or it can execute corresponding software via hardware. The hardware or software includes one or more modules corresponding to the functions described above. For example, a transceiver module and a processing module. The transceiver module can independently complete the following transceiver operations, or it can cooperate with the processing module to complete the following transceiver operations; correspondingly, the processing module can independently complete the following processing operations, or it can cooperate with the transceiver module to complete the following processing operations, without limitation. Optionally, the communication device further includes a storage module. This storage module is used to store computer programs and is coupled to the processing module and the transceiver module. When the processing module reads the computer program or instructions, it causes the communication device to execute any of the methods executed by the terminal device in the first aspect described above. The transceiver module is used to send first information, which is used to indicate the status of the terminal device during the sensing process. The first information is also used to weight and / or filter the echo signal of the sensing signal. The echo signal is the original echo signal reflected by the sensing imaging target or the second echo signal after preprocessing the original echo signal.

[0041] In one possible design, the terminal device sends first information to the network device through a transceiver module, wherein the first information is used to indicate the state of the terminal device during the sensing process.

[0042] In one possible design, the first information sent by the terminal device through the transceiver module includes the acceleration information of the terminal device during the sensing process.

[0043] In one possible design, the terminal device uses a first message sent by the transceiver module to indicate the state of the terminal device at the moment of sending or receiving the raw echo signal of the sensing signal.

[0044] In one possible design, the first information transmitted by the terminal device through the transceiver module also includes the terminal device's orientation information during the sensing process. This orientation information indicates the direction of the terminal device relative to the sensing imaging target, that is, the direction corresponding to the line connecting the terminal device and the sensing imaging target.

[0045] In one possible design, the terminal device receives second information through a transceiver module, and the second information is used to configure the sensing resources of the sensing signal.

[0046] In one possible design, the terminal device receives third information through a transceiver module. The third information is used to instruct the terminal device to report and / or measure the first information.

[0047] In one possible design, the terminal device receives fourth information through a transceiver module. This fourth information is used to indicate the type and / or dimension of the acceleration information reported by the terminal device.

[0048] In one possible design, the terminal device receives fifth information through a transceiver module. The fifth information is used to indicate the quantization and grading threshold of the state information of the terminal device's sensing process.

[0049] In one possible design, the terminal device sends sensing signals to the sensing imaging target through a transceiver module.

[0050] In one possible design, the terminal device receives the raw echo signal of the sensing signal reflected by the sensing imaging target through a transceiver module.

[0051] In one possible design, the terminal device reports the echo signal of the sensing signal to the network device through the transceiver module. The echo signal is either the original echo signal reflected by the sensing imaging target or a second echo signal after preprocessing the original echo signal.

[0052] In one possible design, the terminal device sends the first information to the network device via a transceiver module. The network device can be either an access network device or a core network device.

[0053] In one possible design, the processing module of the terminal device is used to preprocess the original echo signal of the sensed signal to obtain a second echo signal.

[0054] In one possible design, the processing module of the terminal device is used to process the first information.

[0055] In one possible design, the transceiver module may include a receiving module and a sending module. The sending module implements the sending function of the communication device described in the third aspect, and the receiving module implements the receiving function of the communication device described in the third aspect.

[0056] In one possible design, the communication device described in the third aspect may further include a storage module storing programs or instructions. When the processing module executes the program or instructions, the communication device described in the third aspect can perform the method described in the first aspect.

[0057] Fourthly, embodiments of this application provide a communication device that can be applied to the network device described in the second aspect to realize the functions performed by the network device. The communication device can be a network device, or a chip, chip system, or system-on-a-chip of the network device. The communication device can execute the functions performed by the transmitting device via hardware, or it can execute corresponding software via hardware. The hardware or software includes one or more modules corresponding to the functions described above. For example, a transceiver module and a processing module. The transceiver module can independently complete the following transceiver operations, or it can cooperate with the processing module to complete the following transceiver operations; correspondingly, the processing module can independently complete the following processing operations, or it can cooperate with the transceiver module to complete the following processing operations, without limitation. Optionally, the communication device further includes a storage module. This storage module is used to store computer programs and is coupled to the processing module and the transceiver module. When the processing module reads the computer program or instructions, it causes the communication device to execute any of the methods performed by the network device in the second aspect described above. The transceiver module receives first information, which indicates the state of the terminal device during the sensing process. The processing module weights and / or filters the echo signal of the sensing signal according to the first information to obtain echo data. The echo signal is the original echo signal reflected by the sensing imaging target or the second echo signal after preprocessing the original echo signal. The processing module realizes sensing imaging based on the echo data.

[0058] In one possible design, the network equipment is either a core network device or an access network device.

[0059] In one possible design, the first information received by the network device through the transceiver module is used to indicate the state of the terminal device during the sensing process.

[0060] In one possible design, the network device receives first information through a transceiver module, wherein the first information includes acceleration information of the terminal device during the sensing process.

[0061] In one possible design, the network device uses the first information received by the transceiver module to indicate the state of the terminal device at the moment of sending or receiving the raw echo signal of the sensing signal.

[0062] In one possible design, the network device receives first information via a transceiver module. This first information also includes directional information of the terminal device during the sensing process. This directional information indicates the direction of the terminal device relative to the sensing imaging target, i.e., the direction corresponding to the line connecting the terminal device and the sensing imaging target.

[0063] In one possible design, the network device sends second information through a transceiver module, which is used to configure the sensing resources for the sensing signal.

[0064] In one possible design, the network device sends third information through a transceiver module. This third information is used to instruct the terminal device to report and / or measure the first information.

[0065] In one possible design, the network device sends a fourth message through a transceiver module. This fourth message is used to indicate the type and / or dimension of the acceleration information reported by the terminal device.

[0066] In one possible design, the network device sends a fifth piece of information through a transceiver module. This fifth piece of information is used to indicate the quantization and grading threshold of the state information of the terminal device's sensing process.

[0067] In one possible design, the network device sends sensing signals to the sensing imaging target via a transceiver module.

[0068] In one possible design, the network device receives the raw echo signal of the sensing signal reflected back from the sensing imaging target via a transceiver module.

[0069] In one possible design, the network device receives the echo signal of the sensing signal reported by the terminal device through the transceiver module. The echo signal is either the original echo signal reflected by the sensing imaging target or a second echo signal after preprocessing the original echo signal.

[0070] In one possible design, the network device instructs a second network device to send sensing signals to the sensing imaging target via a transceiver module.

[0071] In one possible design, the processing module of the network device is used to process the first information.

[0072] In one possible design, the transceiver module may include a receiving module and a sending module. The sending module implements the sending function of the communication device described in the fourth aspect, and the receiving module implements the receiving function of the communication device described in the fourth aspect.

[0073] In one possible design, the communication device described in the fourth aspect may further include a storage module storing programs or instructions. When the processing module executes the program or instructions, the communication device described in the fourth aspect can perform the method described in the second aspect.

[0074] Fifthly, embodiments of this application provide a communication device including one or more processors; the one or more processors are configured to execute the method described in any one of the first to second aspects by means of logic circuits and / or by running a computer program or instructions.

[0075] In one possible design, the communication device further includes one or more memories coupled to one or more processors, the memories used to store the aforementioned computer programs or instructions. In one possible implementation, the memories are located outside the communication device. In another possible implementation, the memories are located inside the communication device. In embodiments of this application, the processor and memory may also be integrated into a single device, i.e., the processor and memory may be integrated together. In one possible implementation, the communication device further includes a transceiver for receiving and / or transmitting information.

[0076] In one possible design, the communication device further includes one or more communication interfaces coupled to one or more processors, and the communication interfaces are used to communicate with other modules outside the communication device.

[0077] In one possible design, the communication device is a chip or chip system.

[0078] In a sixth aspect, embodiments of this application provide a communication device, which includes an interface circuit and a logic circuit; the interface circuit is used to input and / or output information; the logic circuit is used to perform the method described in either the first or second aspect, processing and / or generating information based on the information.

[0079] In one possible design, the communication device is a chip or chip system.

[0080] In a seventh aspect, embodiments of this application provide a computer-readable storage medium storing computer instructions or programs that, when executed on a computer, cause the methods described in either the first or fourth aspect to be performed.

[0081] Eighthly, embodiments of this application provide a computer program product containing computer instructions that, when run on a computer, cause the methods described in either the first or fourth aspect to be executed.

[0082] Ninthly, embodiments of this application provide a computer program that, when run on a computer, causes the methods described in either the first or fourth aspect to be executed.

[0083] In a tenth aspect, embodiments of this application provide a chip, including: a processor coupled to a memory, the memory being used to store programs or instructions, which, when executed by the processor, cause the method described in either the first or second aspect to be performed.

[0084] The technical effects of any of the design methods in aspects five through ten are similar to those in aspects one and two above, and will not be elaborated upon further.

[0085] Eleventhly, embodiments of this application provide a communication system, which may include communication devices for performing the communication described in the first aspect or any possible design of the first aspect, and communication devices for performing the communication described in the second aspect or any possible design of the second aspect. Attached Figure Description

[0086] Figure 1(a) is a schematic diagram of a sensing scene based on terminal devices and network devices for sensing imaging;

[0087] Figure 1(b) is a schematic diagram of another sensing scenario based on terminal devices and network devices for sensing imaging;

[0088] Figure 1(c) is a schematic diagram of another sensing scenario based on terminal devices and network devices for sensing imaging;

[0089] Figure 2 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0090] Figure 3 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0091] Figure 4 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0092] Figure 5 is a flowchart illustrating a perceptual imaging algorithm provided in an embodiment of this application;

[0093] Figure 6 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0094] Figure 7 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0095] Figure 8 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0096] Figure 9 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0097] Figure 10 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0098] Figure 11 is a schematic diagram of another communication device provided in an embodiment of this application;

[0099] Figure 12 is a schematic diagram of another communication device provided in an embodiment of this application;

[0100] Figure 13 is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0101] Before describing the embodiments of this application, the technical terms involved in the embodiments of this application will be described.

[0102] Real aperture: A radar system that operates with an antenna of actual physical size. Its angular resolution depends primarily on the antenna's physical size and the operating wavelength—it is directly proportional to the antenna's physical size and inversely proportional to the operating wavelength. This means that to improve angular resolution, either the antenna size must be increased or the operating wavelength must be decreased.

[0103] Virtual Aperture (VA): A radar system that uses the motion of a platform (such as a satellite, aircraft, or drone) and signal processing technology to synthesize the echo signals received by a small antenna at different locations, thus creating an equivalent antenna aperture that is much larger than the actual antenna aperture. It does not rely on increasing the physical size, but rather uses signal processing technology to achieve higher resolution or other performance improvements.

[0104] Distributed Radar Imaging (DRI): A distributed radar imaging system typically consists of multiple radar nodes with real or virtual apertures. These nodes achieve high-resolution imaging of the target by receiving reflected signals from the target and performing data fusion.

[0105] Synthetic Aperture Radar (SAR): As a radar platform moves along a defined trajectory, it continuously transmits short pulses of microwave signals towards the target area. As the platform's position changes, these pulses illuminate the same imaging target from different angles. The received echo signals are recorded and stored for subsequent processing. By processing these echo signals, a virtual "synthetic" antenna much longer than the actual physical antenna can be simulated, thereby improving azimuth resolution.

[0106] Multiband Bandwidth Coherent Synthetic (MBCS): This technique utilizes multiple signals with different frequency bandwidths. By using a wider frequency band, the amount of information in the signal is increased, thereby improving distance resolution.

[0107] Raw echo signal: The signal reflected by the sensing imaging target after the sensing signal is received.

[0108] Echo signal: The original echo signal reflected by the sensing imaging target, or the second echo signal after preprocessing the original echo signal.

[0109] Echo data: obtained by weighting and / or filtering the echo signal, and can be processed by sensing imaging algorithms to achieve sensing imaging.

[0110] The embodiments of this application will be described in detail with reference to the accompanying drawings.

[0111] Currently, in integrated sensing and communication (ISAC) scenarios, terminal devices or network devices emit electromagnetic waves as sensing signals. These signals are reflected when they encounter a target during propagation. The receiving end captures the echo signals and analyzes the target's location, shape, and other information to create an image. Because the sensing target occupies only a small portion of the wireless propagation environment, its echo signal power is low, resulting in low signal-to-noise ratio and poor accuracy in a single sensing operation. Multiple sensing results need to be fused to improve the signal-to-noise ratio and sensing accuracy. For example, in an integrated sensing scenario, as shown in Figure 1(a), a mobile terminal device sends a sensing signal to a target (such as a vehicle or building), and the network device receives the echo signal of the sensing signal reflected by the target, thus achieving sensing imaging services. As shown in Figure 1(b), terminal devices at different locations send sensing signals to a target (such as a vehicle or building), and the network device receives the echo signal of the sensing signal reflected by the target, thus achieving sensing imaging services. As shown in Figure 1(c), the terminal device that is ultimately moving sends sensing signals of different frequency bands to the target (such as a vehicle or building), and the network device receives the echo signal of the sensing signal reflected by the target, thereby realizing the sensing imaging service. However, when the terminal device performs sensing imaging with excessive acceleration (such as speed fluctuations, attitude changes, etc.), it will cause geometric distortion or defocusing of the sensing imaging result.

[0112] Therefore, this application provides a signal processing method and apparatus. By defining the state of the terminal device during the sensing process, the network device can obtain the motion state information of the terminal device during the sensing process, so as to process the original echo signal of the corresponding sensing signal to obtain echo data, and then use the echo data to realize sensing imaging to improve the clarity of sensing imaging.

[0113] The information processing method provided in this application embodiment can be used in any communication system, such as a third-generation partnership project (3GPP) communication system, for example, a long-term evolution (LTE) system; or a fifth-generation (5G) mobile communication system, a hybrid LTE and 5G network system, a new radio (NR) system, an NR vehicle-to-everything (V2X) system, a device-to-device (D2D) communication system, a machine-to-machine (M2M) communication system, an internet of things (IoT) system, a narrow band internet of things (NB-IoT) system, enhanced mobile broadband (eMBB), ultra-reliable and low-latency communication (URLLC), enhanced machine-type communication (eMTC), and various types of future communication systems; or a non-terrestrial communication network. This invention does not limit the scope of network (NTN) systems (such as satellite communication systems) and non-3GPP communication systems.

[0114] The communication system provided in the embodiments of this application will be described below using Figure 2 as an example.

[0115] Figure 2 is a schematic diagram of a communication system provided in an embodiment of this application. As shown in Figure 2, the communication system 1000 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 1000 may also include an Internet 300. The RAN 100 includes at least one access network device (110a and 110b in Figure 2, collectively referred to as 110) and at least one terminal device (120a-120j in Figure 2, collectively referred to as 120). The RAN 100 may also include other access network devices, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 2). The terminal device 120 is wirelessly connected to the access network device 110. The access network device 110 is wirelessly or wiredly connected to the core network 200. The core network equipment in the core network 200 and the access network equipment 110 in the RAN 100 can be different physical devices, or they can be the same physical device that integrates core network logical functions and radio access network logical functions.

[0116] In Figure 2, the terminal device can be located within the beam / cell coverage area of ​​the network device, which can provide communication services to the terminal device. For example, the terminal device can send sensing signals or receive the raw echo signals of sensing signals, and transmit its own status information and / or the raw echo signals of the sensing signals to the network device via the air interface. The network device can receive the echo signals of the sensing signals and the status information of the terminal device during the sensing process, process the echo signals of the sensing signals according to the status information of the terminal device during the sensing process to obtain echo data, and finally realize sensing imaging based on the echo data.

[0117] The terminal device 120 in Figure 2 can be a device with wireless transceiver capabilities or a chip or chip system that can be installed on the device. It allows users to access the network and is used to provide voice and / or data connectivity to users. The terminal device 120 can also be referred to as user equipment (UE), subscriber unit, terminal, mobile station (MS), or mobile terminal (MT), etc.

[0118] For example, the terminal device 120 in Figure 2 can be a mobile phone, a tablet computer, or a computer with wireless transceiver capabilities. Terminal equipment can also be user stations, mobile stations, remote stations, remote terminal equipment, mobile terminal equipment, user terminal equipment, wireless communication equipment, user agents, user devices, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices, processing devices connected to wireless modems, in-vehicle equipment, wearable devices, terminal equipment in the Internet of Things (IoT), home appliances, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, customer-premises equipment (CPE), light user equipment (Light UE), reduced capability user equipment (REDCAP UE), wireless terminal equipment in industrial control, wireless terminal equipment in autonomous driving, wireless terminal equipment in telemedicine, wireless terminal equipment in smart grids, wireless terminal equipment in smart cities, and wireless terminal equipment in smart homes. Wireless terminal devices in the home, vehicles with vehicle-to-everything (V2X) communication capabilities, intelligent connected vehicles, vehicle devices (such as vehicle devices, vehicle modules, vehicle chips, on-board units (OBUs) or telematics boxes (T-BOXs), etc.), drones with UAV-to-UAV (U2U) communication capabilities, terminal devices in future networks, or terminal devices in future evolved public land mobile networks (PLMNs) are not restricted.

[0119] In Figure 2, the access network device 110 can be any device deployed in the access network capable of wireless communication with terminal devices. It can also be a chip or chip system that can be configured within such a device, a logical node or logical module, or a function implemented in software. Its main responsibilities include air interface-side wireless physical control, resource scheduling, wireless resource management, quality of service management, data compression and encryption, wireless access control, and mobility management. Specifically, the access network device 110 can be a device supporting wired access or a device supporting wireless access.

[0120] For example, the access network device 110 may consist of one or more access network (AN) / radio access network (RAN) nodes. AN / RAN nodes may be various types of base stations, such as: satellite base stations, evolved Node Bs (gNBs), transmission reception points (TRPs), evolved Node Bs (eNBs), radio network controllers (RNCs), Node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved Node Bs, or home Node Bs (HNBs), macro base stations, micro base stations, pico base stations, small cells, relay stations, balloon stations, unmanned aerial vehicle (UAV) stations, wireless backhaul nodes, base band units (BBUs), or wireless fidelity (Wi-Fi) access points (APs), etc. It is understood that the access network device 110 can be a ground-based device or a non-ground-based device (such as a satellite, drone, or high-altitude communication device). Furthermore, in communication systems employing different wireless access technologies, the names of network devices with base station functions may differ, and this application does not impose any restrictions on this.

[0121] In another example, the access network device 110 may include a BBU and a remote radio unit (RRU). The BBU and RRU can be placed in different locations; for example, the RRU can be moved remotely to a high-traffic area, while the BBU is placed in a central equipment room. The BBU and RRU can also be placed in the same equipment room. The BBU and RRU can also be different components under the same rack.

[0122] In another example, the access network device 110 can also be a device that includes centralized unit (CU) nodes, distributed unit (DU) nodes, or CU nodes and one or more DU nodes. For example, the access network device 110 can be logically divided into CUs and DUs, with some protocol layer functions centrally controlled by the CU, and the remaining part or all of the protocol layer functions distributed in the DU, which is centrally controlled by the CU. CUs and DUs can be set up separately, or they can be included in the same network element, such as in a BBU. Furthermore, the centralized unit CU can also be divided into a control plane (CU-CP) and a user plane (CU-UP).

[0123] In another example, the access network device 110 may also be a device that includes a radio unit (RU), or a device that includes a CU, a DU, and a RU. The RU may be included in a radio frequency device or radio frequency unit, such as an RRU, an active antenna unit (AAU), or a remote radio head (RRH).

[0124] It is understood that CU (or CU-CP and CU-UP), DU, or RU may have different names in different systems, but those skilled in the art will understand their meaning. For example, in an open radio access network (O-RAN) 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 modules and hardware modules.

[0125] The core network 200 in Figure 2 also includes core network equipment. This core network equipment is based on a service-based architecture and consists of various functions or components coupled together via a service-based interface (SBI) bus. These functions or components include Access and Mobility Management Function (AMF) network elements, User Plane Function (UPF) network elements, Location Management Function (LMF) network elements, and Sensing Management Function (SMF) network elements. The AMF network element primarily performs mobility management and access authentication / authorization functions. It is also responsible for transmitting user policies between the UE and the PCF. The UPF network element, as the interface with the data network, performs user plane data forwarding, session / flow-based billing statistics, and bandwidth limiting functions. The LMF network element initiates the terminal device's location process to obtain the terminal device's location information. The SMF network element is responsible for end-to-end enabling of sensing services. For example, the SMF network element obtains sensing requirements based on internal network needs or the needs of the sensing service's requester. After receiving a sensing request, the SMF network element triggers access network devices or terminal devices to detect and / or collect sensing data. In this application, the SMF network element can communicate with other network elements, such as RAN, AMF, LMF, etc. It should be noted that the SMF network element can be one of the core network elements. Alternatively, the SMF network element can be a non-core network element. Alternatively, the SMF network element can be deployed independently. Alternatively, the SMF network element can be a sub-network element or module within the 5GC network elements. For example, the SMF network element can be deployed in conjunction with AMF, UPF, or LMF network elements; this application does not impose any particular limitation on this. Any unit among AMF, UPF, LMF, and SMF in this application can be implemented through a software module, a hardware module, or a combination of software and hardware modules.

[0126] Based on the above description of the terminal device and network device, optionally, the information transmission method provided in the embodiments of this application can be implemented by the aforementioned terminal device or network device, or by components of the terminal device or network device, such as by application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or software (such as program code in memory) deployed in the terminal device or network device, without limitation.

[0127] In specific implementation, as shown in Figure 2, each terminal device and network device can adopt the composition structure shown in Figure 3, or include the components shown in Figure 3. Figure 3 is a schematic diagram of the structure of a communication device 300 provided in an embodiment of this application. The communication device 300 can be a terminal device or a chip or system-on-a-chip in a terminal device; it can also be a network device or a chip or system-on-a-chip in a network device. As shown in Figure 3, the communication device 300 includes a processor 301, a transceiver 302, and a communication line 303.

[0128] Furthermore, the communication device 300 may also include a memory 304. The processor 301, memory 304, and transceiver 302 can be connected via a communication line 303.

[0129] The processor 301 can be a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a programmable logic device (PLD), a microprocessor unit (MPU), a microcontroller unit (MCU), a graphics processing unit (GPU), a field-programmable gate array (FPGA), an artificial intelligence processor (AI processor), or a neural processing unit (NPU), or any combination thereof. The processor 301 can also be other devices with processing capabilities, such as circuits, devices, or software modules, without limitation.

[0130] Transceiver 302 is used to communicate with other communication devices or other communication networks. These other communication networks can be Ethernet, radio access network (RAN), wireless local area network (WLAN), etc. Transceiver 302 can be a communication module, interface circuit, input / output interface, chip pin, transceiver, or any device capable of enabling communication.

[0131] Communication line 303 is used to transmit information between the components included in communication device 300.

[0132] Memory 304 is used to store instructions. These instructions can be computer programs.

[0133] The memory 304 can be a read-only memory (ROM) or other type of static storage device that can store static information and / or instructions; it can also be a random access memory (RAM) or other type of dynamic storage device that can store information and / or instructions; it can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, etc., without limitation.

[0134] It is understood that the memory 304 can exist independently of the processor 301 or can be integrated with the processor 301. The memory 304 can be used to store instructions, program code, or some data, etc. The memory 304 can be located inside or outside the communication device 300, without limitation. The processor 301 is used to execute the instructions stored in the memory 304 to implement the information transmission method provided in the following embodiments of this application.

[0135] In one example, processor 301 may include one or more CPUs, such as CPU0 and CPU1 in Figure 3.

[0136] As an optional implementation, the communication device 300 includes multiple processors. For example, in addition to processor 301 in FIG. 3, it may also include processor 307. Processors 301 and 307 shown in FIG. 3 only include two processor cores, CPU0 and CPU1. This is only an example. Those skilled in the art will understand that in specific implementations, the processor may include one or more processor cores. The embodiments of the present invention are not limited.

[0137] As an optional implementation, the communication device 300 also includes an output device 305 and an input device 306. For example, the input device 306 is a device such as a keyboard, mouse, microphone, or joystick, and the output device 305 is a device such as a display screen or speaker.

[0138] It is understood that the communication device 300 can be any of the aforementioned terminal devices, network devices, such as desktop computers, portable computers, network servers, mobile phones, tablet computers, wireless terminal devices, embedded devices, chip systems, or devices with a similar structure to that shown in Figure 3. Furthermore, the structural composition shown in Figure 3 does not constitute a limitation on the communication device. In addition to the components shown in Figure 3, the specific implementation of this communication device may include more or fewer components than shown, or combine certain components, or have different component arrangements. The embodiments of this application do not impose any limitations on this.

[0139] In this embodiment of the application, the chip system may be composed of chips or may include chips and other discrete devices.

[0140] Furthermore, the actions, terms, etc., involved in the various embodiments of this application can be referenced interchangeably without limitation. The message names or parameter names in the messages exchanged between the various devices in the embodiments of this application are merely examples, and other names may be used in specific implementations without limitation.

[0141] The communication method provided in the embodiments of this application will be described below with reference to the communication system shown in Figure 2 and Figure 4. The terminal device and network device described in the following embodiments may include the components shown in Figure 3.

[0142] Figure 4 is a flowchart illustrating a communication method provided in an embodiment of this application. As shown in Figure 4, the method may include the following steps:

[0143] S401. The terminal device sends the first information to the network device. Correspondingly, the network device receives the first information from the terminal device.

[0144] For example, the network device is an access network device or a core network device.

[0145] The first information is used to indicate the state of the terminal device during the sensing process of the imaging target. It can be understood as an indication of the state of the terminal device during the sensing process. For example, the first information can be the acceleration information of the terminal device during the sensing process. The embodiments of this application do not limit the name of the first information.

[0146] For example, the sensing and imaging process of terminal devices and network devices includes three stages: sensing, signal processing, and imaging. The sensing process refers to the terminal device sending sensing signals for sensing and imaging, and / or receiving echo signals from these sensing signals to sense the target. The signal processing process refers to the network device processing the echo signals based on the first information to obtain corresponding echo data. Finally, the imaging process refers to the network device performing sensing and imaging based on the processed echo data and obtaining the final sensing and imaging result.

[0147] For example, network devices can perform sensing imaging based on different terminal devices at different locations, such as distributed multi-terminal device collaborative sensing imaging by fusing the echo signals of sensing signals from different terminal devices during the sensing process; network devices can also perform sensing imaging based on the same terminal devices at different locations, such as synthetic aperture radar imaging by fusing the echo signals of sensing signals from terminal devices during motion; network devices can also perform multi-bandwidth coherent synthetic sensing imaging by fusing the echo signals of sensing signals from the same terminal devices at the same location through different frequency bands. For example, network devices can perform fused sensing imaging based on the sensing signals of real aperture or virtual aperture from terminal devices uniformly distributed in spatial location to reduce the complexity of sensing imaging algorithms.

[0148] For example, the acceleration information of the terminal device during the sensing process may include at least one of the following: linear acceleration value and angular acceleration value. The linear acceleration value of the terminal device includes at least one of the following: linear acceleration measurement value, linear acceleration metric value, and linear acceleration quantization index. The angular acceleration value of the terminal device includes at least one of the following: angular acceleration measurement value, angular acceleration metric value, and angular acceleration quantization index. The acceleration metric value of the terminal device includes at least one of the following: average acceleration measurement value, maximum absolute value of acceleration measurement value, average absolute value of acceleration measurement value, variance of acceleration measurement value, projection of acceleration measurement value in a certain direction, and component of acceleration measurement value in a certain direction. The linear acceleration value of the terminal device includes at least one of the following: linear acceleration value along the x-axis, linear acceleration value along the y-axis, and linear acceleration value along the z-axis. The angular acceleration value of the terminal device includes at least one of the following: angular acceleration value for roll, angular acceleration value for pitch, and angular acceleration value for yaw.

[0149] The acceleration quantification index of a terminal device is the result of comparing the terminal device's acceleration measurement value or acceleration metric value with a quantization and grading threshold. The coordinate system corresponding to the terminal device's acceleration measurement value is either the global coordinate system or the local coordinate system in which the terminal device is located. The local coordinate system in which the terminal device is located is a coordinate system relative to the terminal device, and this coordinate system changes as the terminal device moves or rotates.

[0150] The linear acceleration measurement value of the terminal device includes at least one of the following: linear acceleration measurement value along the x-axis, linear acceleration measurement value along the y-axis, and linear acceleration measurement value along the z-axis. For example, when the terminal device is performing sensing, the linear acceleration measurement value can be the average of its linear acceleration measurement values ​​over a period of time before and after the sensing moment. Another example is when the linear acceleration measurement value of the terminal device along the x-axis in a global coordinate system relative to the ground is 3 m / s². 2 The measured linear acceleration along the y-axis is -4 m / s². 2 The measured linear acceleration along the z-axis is 0 m / s². 2 Then its linear acceleration metric value can be the combined value of the acceleration measurements of the terminal device along the x-axis, y-axis, and z-axis, which is 5 m / s². 2 For example, if the threshold for motion stability level 1 (indicating that the terminal device is stationary or moving at a constant speed) is defined as <0.1 m / s 2 The threshold for motion stability level 2 (indicating that the speed of the terminal device changes slightly, but still shows a smooth overall trend) is 1-3 m / s. 2 The threshold for motion stability level 3 (indicating frequent and drastic changes in the speed of the terminal device) is >3 m / s. 2 If the measurement value of the terminal device performing perception imaging at the current moment is compared with the preset quantization and grading threshold, it can be determined that the motion stability of the terminal device performing perception imaging at the current moment is 3.

[0151] The angular acceleration values ​​of the terminal device include at least one of the following: angular acceleration measurements of roll, pitch, and yaw. For example, the angular acceleration measurement of the terminal device during sensing can be the average of its angular acceleration measurements over a period of time before and after the sensing moment. For example, when the terminal device is performing sensing imaging, its roll angular acceleration measurement relative to its own local coordinate system is 1 rad / s². 2 The pitch angle angular acceleration value is -0.5 rad / s². 2 The yaw angle angular acceleration value is 0 rad / s². 2Its angular acceleration measurement value can be obtained by combining its roll angle angular acceleration, pitch angle angular acceleration, and yaw angle angular acceleration measurements, which is 1.18 rad / s². 2 If the threshold for motion stability level 1 (indicating that the terminal device is stationary or moving at a constant speed) is defined as <0.05 rad / s 2 The threshold for motion stability level 2 (indicating slight changes in the speed of the terminal device, but still showing a relatively smooth overall trend) is 0.05-0.5 rad / s. 2 The threshold for motion stability level 3 (indicating frequent and drastic changes in the speed of the terminal device) is >0.5 rad / s. 2 If the angular acceleration measurement value of the terminal device performing perception imaging at the current moment is compared with the preset quantization grading threshold, it can be determined that the motion stability of the terminal device performing perception imaging at the current moment is 3.

[0152] For example, the linear acceleration measurement value of the terminal device is obtained by one of the following methods: the measurement result of the accelerometer or speedometer equipped in the terminal device, or the conversion result of the measurement result of the ranging unit or positioning unit equipped in the terminal device; the angular acceleration measurement value of the terminal device is obtained by one of the following methods: the measurement result of the gyroscope, inertial measurement unit (IMU), magnetometer equipped in the terminal device, or the conversion result of the measurement result of the vision-based attitude measurement unit equipped in the terminal device.

[0153] For example, when a terminal device meets one or more of the following conditions: its acceleration is greater than a preset acceleration threshold, and / or its angular acceleration is greater than a preset angular acceleration threshold, the motion state of the terminal device is defined as unstable. In some possible scenarios, the first information can also be used to indicate the identifier of the terminal device participating in sensing imaging, such as terminal device ID, IMSI (International Mobile Subscriber Identity), MEID (Mobile Equipment Identifier), MEID (Mobile Equipment Identifier), terminal device MAC address, virtual antenna index, bitmap, virtual aperture identifier, frequency domain identifier of the sensing signal, etc. The above examples illustrate the indication method of the first information, and the specific indication method of the first information is not limited in the embodiments of this application.

[0154] Optionally, the first information sent by the terminal device may also include directional information of the terminal device during the sensing process. This directional information indicates the direction of the terminal device relative to the sensing imaging target, that is, the direction corresponding to the line connecting the terminal device and the sensing imaging target.

[0155] For example, the terminal device obtains the direction corresponding to the line connecting the terminal device and the sensing imaging target based on data from a satellite navigation system, an electronic compass (digital compass), a Bluetooth beacon, Wi-Fi fingerprinting, computer vision technologies (such as feature matching and object recognition), an inertial measurement unit (IMU), and deployed ultra-wideband (UWB) anchor points. Optionally, the sensing imaging requester determines the sensing imaging target, the terminal device obtains the position of the sensing imaging target from the requester, and then the terminal device determines the direction corresponding to the line connecting the terminal device and the sensing imaging target based on its own position and the position of the sensing imaging target. This application embodiment does not limit the method of obtaining the direction information of the terminal device.

[0156] S403. The network device receives the first information and the echo signal of the sensing signal sent by the terminal device. The network device processes the echo signal of the sensing signal according to the first information to obtain echo data.

[0157] Optionally, the echo signal received by the network device from the sensing signal can be the original echo signal reflected back from the sensing imaging target by the sensing signal emitted by the terminal device, or it can be the echo signal of the sensing signal received by the terminal device or the second network device uploaded by the terminal device. When the network device receives the first information and echo signal reported by the terminal device, this embodiment of the application does not limit the reporting order of the first information and echo signal or the number and type of signaling used for reporting.

[0158] For example, a terminal device sends a sensing signal to a sensing imaging target, and a network device receives the original echo signal reflected back from the sensing imaging target and first information about the state of the terminal device when it sends the sensing signal; the network device sends a sensing signal to the sensing imaging target, the terminal device receives the original echo signal reflected back from the sensing imaging target and reports the echo signal to the network device, and the network device also receives the first information about the state of the terminal device when it receives the original echo signal; a second network device sends a sensing signal to the sensing imaging target, the terminal device receives the original echo signal reflected back from the target and reports the echo signal to the network device, and the network device also receives the first information about the state of the terminal device when it receives the original echo signal.

[0159] For example, the terminal device can report the first information to the network device through signaling in the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH). This application embodiment does not limit the signaling used for reporting the first information.

[0160] Optionally, the network device may obtain echo data by weighting and / or filtering the echo signals of the sensed signal based on the first information.

[0161] For example, the network device filters echo signals whose acceleration information is less than a first threshold as echo data—for instance, the network device filters terminal devices with linear acceleration less than 1 m / s² in sensing imaging. 2 and / or angular acceleration less than 0.5 rad / s² 2 Alternatively, the echo signal corresponding to a motion stability level less than 2 can be used as echo data; the network device maps the acceleration information of the terminal device based on a mapping function to obtain weighting coefficients, and then applies the corresponding weighting coefficients to the echo signal to obtain the corresponding echo data—for example, the echo data S′ corresponding to the i-th sensing signal. i =S i ·W i , among which, S i W is the echo signal corresponding to the i-th sensing signal. i W represents the weighting coefficient corresponding to the terminal device sending the i-th sensing signal or receiving the echo signal of the i-th sensing signal during the sensing process. i Mapping function W with weighted coefficients i =1 / a i or W i =1 / (a i ) 2 The calculation yields, where a i This refers to the acceleration information corresponding to the terminal device sending the i-th sensing signal or receiving the echo signal of the i-th sensing signal during the sensing process. For example, network devices may filter terminal devices whose linear acceleration is less than 1 m / s² during the sensing and imaging process. 2 and / or angular acceleration less than 0.5 rad / s² 2 Alternatively, after receiving echo signals corresponding to motion stability levels less than 2, the network device applies corresponding weighting coefficients to the echo signals of the filtered terminal devices to obtain the corresponding echo data. For example, the network device applies corresponding weighting coefficients to the echo signals of the terminal devices to obtain the corresponding echo data; where, for echo signals with acceleration information greater than a first threshold, their corresponding weighting coefficients are directly set to 0.

[0162] Optionally, the network device preprocesses the first information reported by the terminal device based on the orientation information of the terminal device. For example, the network device performs noise filtering, zero-drift calibration, and / or data standardization / normalization on the first information reported by the terminal device. This application embodiment does not limit the preprocessing methods used by the network device for the first information reported by the terminal device.

[0163] Optionally, the first information sent by the terminal device may also include orientation information of the terminal device during the sensing process. For example, the orientation information of the terminal device indicates the direction of the terminal device relative to the sensing imaging target, i.e., the direction corresponding to the line connecting the terminal device and the sensing imaging target. The network device calculates the projection value of the linear acceleration value onto the direction indicated by the orientation information, and uses this projection value as a new metric and processes the echo signal based on a mapping function or threshold. The network device calculates the roll angle acceleration value and pitch angle acceleration value in the local coordinate system with the orientation information indicating the z-axis, and uses these metric values ​​as a new metric and processes the echo signal based on a mapping function or threshold. In the local coordinate system of the terminal device, after defining the orientation information indicating the z-axis, the direction pointing due east and orthogonal to the z-axis can be defined as the x-axis, and the direction orthogonal to both the z-axis and x-axis can be defined as the y-axis. For example, when the terminal device is performing sensing imaging, its linear acceleration measurements on the x-axis, y-axis, and z-axis in the global coordinate system relative to the ground... The direction corresponding to the line connecting the center of the sensing area and the terminal device. Then the projection value a of the linear acceleration measurement value of the terminal device in the direction indicated by the direction information is... d for

[0164] S405, Network equipment performs sensing and imaging on echo data.

[0165] For example, the imaging algorithm used by a network device in the sensing imaging process may include at least one of the following: Range-Doppler Algorithm (RDA), Polar Format Algorithm (PFA), Chirp Scaling Algorithm (CSA), Omega-K algorithm, Matched Filter algorithm, Back Projection (BP) algorithm, Range Migration Algorithm (RMA), Distributed Fusion Algorithm based on Compressed Sensing, Distributed Fusion Algorithm based on Kalman Filter, Band Fusion Algorithm, etc. The above examples illustrate imaging algorithms for sensing imaging; however, this application does not limit the specific imaging method used in sensing imaging.

[0166] Referring to Figure 5, it is a schematic diagram of a perceptual imaging process using the back projection (BP) algorithm provided in an embodiment of this application.

[0167] The main steps for network devices to perform sensing imaging on echo data include:

[0168] Step 1: For each echo signal in the echo data, pulse compression is performed along the distance dimension to obtain a pulse-compressed signal, or simply pulse compression signal. The template signal used for pulse compression is the sensing signal sent by the terminal or network device. The amplitude of the pulse compression signal reflects the distance distribution of target objects in the environment.

[0169] Step 2: For each pulse compression signal, determine the locations of its corresponding transmitter and receiver, and then calculate the signal propagation delay for each data point of the pulse compression signal. The locations of the transmitter and receiver for each pulse compression signal are the locations of the transmitter and receiver corresponding to the echo signal used to obtain that pulse compression signal.

[0170] Step 3: Spatialize the area of ​​interest into a grid, obtaining a set of grid points in two-dimensional or three-dimensional space. Based on the coordinates of each grid point, the signal propagation delay corresponding to that grid point can be calculated given the transmitter and receiver positions. Each pulse compression signal has a corresponding transmitter and receiver position; that is, for each grid point, a set of signal propagation delays can be calculated, with each signal propagation delay corresponding to a pulse compression signal.

[0171] Step 4: For each grid point, based on the set of signal propagation delays corresponding to that grid point in Step 3, sample multiple pulse compression signals, generating a set of sampled values. The signal propagation delays used for sampling correspond one-to-one with the pulse compression signals. In the specific implementation of sampling, the pulse compression signals can be upsampled and smoothed first to improve the accuracy of the sampling results, thereby improving the accuracy of the imaging results.

[0172] Step 5: For each grid point, based on the signal propagation delay corresponding to that grid point in Step 3, perform carrier phase compensation on the set of sampling points obtained in Step 4 to obtain a set of phase-compensated sampling points. The purpose of carrier phase compensation is to eliminate the difference in carrier phase caused by the signal propagation delay, thereby facilitating coherent signal accumulation and improving the accuracy of the imaging results.

[0173] Step 6: For each grid point, sum the phase-compensated sampling points from Step 5 to obtain the image value corresponding to that grid point. The image values ​​corresponding to all grid points together constitute the imaging result of the sensing area.

[0174] Referring to Figure 6, which is a flowchart illustrating another communication method provided in an embodiment of this application, the terminal device performs uplink sensing based on the sensing resources configured by the access network device. As shown in Figure 6, the method may include the following steps:

[0175] As shown in Figure 6, the method may include the following steps:

[0176] S601a: Access network equipment sends configuration information to terminal equipment.

[0177] The access network device sends second information to the terminal device. This second information is used to configure the sensing resources for the sensing signal. For example, sensing resources refer to the time-domain and frequency-domain resources used by the terminal device to transmit the sensing signal during the sensing process. For instance, it can be a region on a two-dimensional time-frequency resource grid defined by the combination of frequency-domain subcarriers and time-domain symbols in wireless communication. Furthermore, resources may also include spatial-domain resources and code-domain resources, and can be considered as resource pairs formed by time-domain resources, frequency-domain resources, spatial-domain resources, and code-domain resources. This application embodiment does not limit the configuration of the sensing resources for the sensing signal.

[0178] Optionally, the access network device sends third information to the terminal device, which instructs the terminal device to report and / or measure the first information. For example, the terminal device can measure and / or report its state during the sensing process based on the third information.

[0179] Optionally, the access network device sends a fourth piece of information to the terminal device. This fourth piece of information indicates the type and / or dimension of the acceleration information reported by the terminal device. For example, the type of acceleration information indicates the type of acceleration information in the first information that the terminal device needs to report, such as linear acceleration information and / or angular acceleration information; the dimension information indicates the dimension included in the acceleration information in the first information reported by the terminal device, such as the x-axis or pitch angle.

[0180] Optionally, the access network device sends a fifth piece of information to the terminal device. The fifth piece of information is used to indicate the quantification and grading threshold of the state information of the terminal device's sensing process.

[0181] For example, access network devices can send configuration information to terminal devices via a Physical Downlink Shared Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), or a Physical Broadcast Channel (PBCH). This application embodiment does not limit the number or type of signaling used for sending configuration information.

[0182] S601b: The terminal device sends sensing signals based on the sensing resources.

[0183] In this process, the terminal device sends a sensing signal to the sensing imaging target based on the sensing resources indicated by the second information.

[0184] For example, terminal devices distributed in different locations send sensing signals to the sensing and imaging target according to the configuration information sent by the access network device; terminal devices in motion send sensing signals to the sensing and imaging target at different times according to the configuration information sent by the access network device; and terminal devices send sensing signals of different frequency bands to the sensing and imaging target according to the configuration information sent by the access network device.

[0185] S601c: The terminal device reports status information to the access network device.

[0186] Specifically, the status information reported by the terminal device to the access network device is its status information when it sent the sensing signal, thereby ensuring the correspondence between the terminal device's status information and the sensing signal it sent. For example, the terminal device reports its status information when sending the sensing signal to the access network device based on the second information.

[0187] Optionally, the terminal device collects and reports its status information during the sensing process based on the third information; or the terminal device reports its pre-collected status information during the sensing process based on the third information.

[0188] Optionally, the terminal device may report the type and / or dimension of its state during the sensing process based on the fourth information.

[0189] Optionally, a quantification and grading index for the acceleration information reported by the terminal device can be provided. This index is a comparison between the terminal device's acceleration information and a quantification and grading threshold. The quantification and grading threshold can be stored locally on the terminal device or sent to the terminal device by the network device via the fifth information.

[0190] S603. The access network device receives the status information reported by the terminal device, receives the original echo signal of the sensing signal, and processes the original echo signal of the sensing signal according to the status information to obtain echo data.

[0191] For example, the access network device receives the raw echo signal of the sensing signal reported by the sensing resource indicated by the second information from the sensing resource of the terminal device, and the access network device also receives the raw echo signal of the sensing signal sent by the terminal device reflected back from the sensing imaging target. The access network device then weights and / or filters the raw echo signal of the sensing signal according to the status information to obtain echo data.

[0192] S605, Access network equipment performs sensing and imaging based on echo data.

[0193] Referring to Figure 7, which is a flowchart illustrating another communication method provided in an embodiment of this application, the terminal device performs downlink sensing based on the sensing resources configured by the access network device. As shown in Figure 7, the method may include the following steps:

[0194] As shown in Figure 7, the method may include the following steps:

[0195] S701a: Access network equipment sends configuration information to terminal equipment.

[0196] The access network device sends second information to the terminal device. This second information is used to configure the sensing resources of the sensing signal. For example, sensing resources refer to the time-domain and frequency-domain resources used by the terminal device to receive the original echo signal of the sensing signal during the sensing process. For instance, it can be a region on a two-dimensional time-frequency resource grid defined by the combination of frequency-domain subcarriers and time-domain symbols in wireless communication. Furthermore, resources can also include spatial-domain resources and code-domain resources, and can be considered as resource pairs formed by time-domain resources, frequency-domain resources, spatial-domain resources, and code-domain resources. This application embodiment does not limit the configuration of sensing resources for the sensing signal.

[0197] Optionally, the access network device sends third information to the terminal device, which instructs the terminal device to report and / or measure the first information. For example, the terminal device can measure and / or report its state during the sensing process based on the third information.

[0198] Optionally, the access network device sends a fourth piece of information to the terminal device. This fourth piece of information indicates the type and / or dimension of the acceleration information reported by the terminal device. For example, the type of acceleration information indicates the type of acceleration information in the first information that the terminal device needs to report, such as linear acceleration information and / or angular acceleration information; the dimension information indicates the dimension included in the acceleration information in the first information reported by the terminal device, such as the x-axis or pitch angle.

[0199] Optionally, the access network device sends a fifth piece of information to the terminal device. The fifth piece of information is used to indicate the quantification and grading threshold of the state information of the terminal device's sensing process.

[0200] For example, access network devices can send configuration information to terminal devices via a Physical Downlink Shared Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), or a Physical Broadcast Channel (PBCH). This application embodiment does not limit the number or type of signaling used for sending configuration information.

[0201] S701b: Access network devices send sensing signals based on sensing resources.

[0202] For example, the access network device sends a sensing signal to the sensing imaging target based on sensing resources.

[0203] For example, steps S701a and S701b can be executed simultaneously or sequentially. This application embodiment does not limit the order of distributing configuration information and sending sensing signals.

[0204] S701c: The terminal device receives the raw echo signal of the sensing signal based on the sensing resources.

[0205] The terminal device receives the original echo signal of the sensing signal according to the sensing resources indicated by the second information.

[0206] For example, terminal devices distributed in different locations receive the raw echo signals of the sensing signals according to the configuration information sent by the access network device; terminal devices in motion receive the raw echo signals of the sensing signals at different times according to the configuration information sent by the access network device; and terminal devices receive the raw echo signals of sensing signals in different frequency bands according to the configuration information sent by the access network device.

[0207] S701d: The terminal device reports status information and echo signals to the access network device.

[0208] Specifically, the status information reported by the terminal device to the access network device is its status information at the moment it receives the original echo signal of the sensed signal, thereby ensuring the correspondence between the terminal device's status information and the original echo signal it receives. For example, the terminal device reports its status information when receiving the original echo signal to the access network device based on the second information.

[0209] When a terminal device reports status information and echo signals to an access network device, this application embodiment does not limit the reporting order of status information and echo signals or the number and type of signaling used for reporting.

[0210] Optionally, the terminal device collects and reports its status information during the sensing process based on the third information; or the terminal device reports its pre-collected status information during the sensing process based on the third information.

[0211] Optionally, the terminal device may report the type and / or dimension of its state during the sensing process based on the fourth information.

[0212] Optionally, a quantification and grading index for the acceleration information reported by the terminal device can be provided. This index is a comparison between the terminal device's acceleration information and a quantification and grading threshold. The quantification and grading threshold can be stored locally on the terminal device or sent to the terminal device by the network device via the fifth information.

[0213] Optionally, before reporting the echo signal, the terminal device may preprocess the original echo signal of the sensed signal to obtain a second echo signal. Preprocessing of the original echo signal by the terminal device includes, but is not limited to, pulse compression, filtering, noise reduction, and Fourier transform. This application embodiment does not limit the preprocessing methods for the original echo signal.

[0214] S703. The access network device receives the status information reported by the terminal device, and receives the echo signal of the sensing signal reported by the terminal device. The access network device processes the echo signal of the sensing signal according to the status information to obtain echo data.

[0215] For example, the access network device receives the echo signal of the sensing signal reported by the terminal device according to the sensing resources indicated by the second information. The access network device weights and / or filters the raw echo signal of the sensing signal according to the status information to obtain echo data.

[0216] S705, access network equipment performs sensing and imaging based on echo data.

[0217] Referring to Figure 8, which is a flowchart illustrating another communication method provided in an embodiment of this application, the terminal device performs self-transmitting and self-receiving single-base sensing based on the sensing resources configured by the network device. As shown in Figure 8, the method may include the following steps:

[0218] S801a: Network devices send configuration information to terminal devices.

[0219] Among them, network equipment can be access network equipment or core network equipment.

[0220] The network device sends second information to the terminal device, which is used to configure the sensing resources of the sensing signal. For example, sensing resources refer to the time-domain and frequency-domain resources used by the terminal device to transmit or receive the original echo signal of the sensing signal during the sensing process. For instance, it can be a region on a two-dimensional time-frequency resource grid defined by the combination of frequency-domain subcarriers and time-domain symbols in wireless communication. Furthermore, resources can also include spatial-domain resources and code-domain resources, and can be considered as resource pairs formed by time-domain resources, frequency-domain resources, spatial-domain resources, and code-domain resources. This application embodiment does not limit the configuration of sensing resources for the sensing signal.

[0221] Optionally, the network device sends third information to the terminal device, which instructs the terminal device to report and / or measure the first information. For example, the terminal device can measure and / or report its state during the sensing process based on the third information.

[0222] Optionally, the network device sends a fourth piece of information to the terminal device. This fourth piece of information indicates the type and / or dimension of the acceleration information reported by the terminal device. For example, the type of acceleration information indicates the type of acceleration information in the first piece of information that the terminal device needs to report, such as linear acceleration information and / or angular acceleration information; the dimension information indicates the dimension included in the acceleration information in the first piece of information reported by the terminal device, such as the x-axis or pitch angle.

[0223] Optionally, the network device sends a fifth piece of information to the terminal device, which is used to indicate the quantification and grading threshold of the state information of the terminal device's sensing process.

[0224] For example, access network devices can send configuration information to terminal devices via the Physical Downlink Shared Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), or Physical Broadcast Channel (PBCH); core network devices can send configuration information to terminal devices via the Public Land Mobile Network (PLMN). This application embodiment does not limit the number or type of signaling used for sending configuration information.

[0225] S801b: The terminal device sends sensing signals based on sensing resources and receives the corresponding raw echo signals of the sent sensing signals.

[0226] Specifically, the terminal device sends a sensing signal to the sensing imaging target according to the sensing resources indicated by the second information, and the terminal device receives the original echo signal reflected back from the sensing imaging target according to the sensing resources indicated by the second information.

[0227] For example, terminal devices distributed in different locations send sensing signals to the sensing and imaging target and receive the original echo signals of the sensing signals according to the configuration information sent by the network device; terminal devices in motion send sensing signals to the sensing and imaging target at different times according to the configuration information sent by the network device and receive the original echo signals of the sensing signals; terminal devices send sensing signals of different frequency bands to the sensing and imaging target according to the configuration information sent by the network device and receive the original echo signals of the sensing signals.

[0228] S801c, the terminal device reports status information and the echo signal of the sensing signal to the network device.

[0229] Specifically, the status information reported by the terminal device to the access network device is its status information when it sends the sensing signal or receives the original echo signal of the sensing signal, thereby ensuring the correspondence between the terminal device's status information and the original echo signal of the sensing signal it sends or receives. For example, the terminal device reports its status information to the network device at the moment it sends the sensing signal or receives the original echo signal of the sensing signal, based on the second information.

[0230] When a terminal device reports status information and echo signals to a network device, this embodiment of the application does not limit the reporting order of status information and echo signals or the number and type of signaling used for reporting.

[0231] Optionally, when a terminal device reports status information and echo signals to the core network device, it can report the information directly to the core network device via the NAS layer protocol, or it can report the information through the access network device. This application embodiment does not limit the means by which the terminal device reports information to the core network device.

[0232] Optionally, the terminal device collects and reports its status information during the sensing process based on the third information; or the terminal device reports its pre-collected status information during the sensing process based on the third information.

[0233] Optionally, the terminal device may report the type and / or dimension of its state during the sensing process based on the fourth information.

[0234] Optionally, a quantification and grading index for the acceleration information reported by the terminal device can be provided. This index is a comparison between the terminal device's acceleration information and a quantification and grading threshold. The quantification and grading threshold can be stored locally on the terminal device or sent to the terminal device by the network device via the fifth information.

[0235] Optionally, before reporting the echo signal, the terminal device may preprocess the original echo signal of the sensed signal to obtain a second echo signal. Preprocessing of the original echo signal by the terminal device includes, but is not limited to, pulse compression, filtering, noise reduction, and Fourier transform. This application embodiment does not limit the preprocessing methods for the original echo signal.

[0236] S803. The network device receives the status information and echo signal of the sensing signal from the terminal device during the sensing process, and processes the echo signal of the sensing signal according to the status information to obtain echo data.

[0237] For example, the network device receives the echo signal and status information of the sensing signal reported by the terminal device based on the sensing resources indicated by the second information. The network device then weights and / or filters the echo signal of the sensing signal according to the status information to obtain echo data.

[0238] S805, network devices perform sensing and imaging based on echo data.

[0239] Referring to Figure 9, which is a flowchart illustrating another communication method provided in an embodiment of this application, the terminal device performs uplink sensing based on the sensing resources configured by the core network equipment. As shown in Figure 9, the method may include the following steps:

[0240] 901a~b, the core network equipment sends configuration information to the access network equipment and terminal equipment respectively.

[0241] Optionally, the core network device sends second information to both the terminal device and the access network device, the second information being used to configure the sensing resources for the sensing signal. Optionally, the core network device sends the second information to the access network device, the second information being used to configure the sensing resources for the sensing signal, and the access network device receives and forwards the second information to the terminal device. This application embodiment does not limit the order in which the configuration information is sent to the terminal device and the access network device.

[0242] For example, sensing resources refer to the time-domain and frequency-domain resources used by the terminal device to transmit sensing signals or receive the original echo signals of sensing signals during the sensing process. For instance, it can be a region on a two-dimensional time-frequency resource grid defined by the combination of frequency-domain subcarriers and time-domain symbols in wireless communication. Furthermore, resources can also include spatial-domain resources and code-domain resources, and can be considered as resource pairs formed by time-domain resources, frequency-domain resources, spatial-domain resources, and code-domain resources. This application does not limit the sensing resources used to configure sensing signals in its embodiments.

[0243] Optionally, the core network device sends third information to the terminal device, which instructs the terminal device to report and / or measure the first information. For example, the terminal device can measure and / or report its state during the sensing process based on the third information.

[0244] Optionally, the network device sends a fourth piece of information to the terminal device. This fourth piece of information indicates the type and / or dimension of the acceleration information reported by the terminal device. For example, the type of acceleration information indicates the type of acceleration information in the first piece of information that the terminal device needs to report, such as linear acceleration information and / or angular acceleration information; the dimension information indicates the dimension included in the acceleration information in the first piece of information reported by the terminal device, such as the x-axis or pitch angle.

[0245] Optionally, the network device sends a fifth piece of information to the terminal device, which is used to indicate the quantification and grading threshold of the state information of the terminal device's sensing process.

[0246] For example, access network devices can send configuration information to terminal devices via the Physical Downlink Shared Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), or Physical Broadcast Channel (PBCH); core network devices can send configuration information to terminal devices via the Public Land Mobile Network (PLMN); core network devices can send configuration information via access network devices under the N2 and N3 interfaces. This application embodiment does not limit the number and type of signaling for sending configuration information.

[0247] S901c: The terminal device sends sensing signals based on sensing resources.

[0248] In this process, the terminal device sends a sensing signal to the sensing imaging target based on the sensing resources indicated by the second information.

[0249] For example, terminal devices distributed in different locations send sensing signals to the target based on configuration information sent by the access network device; terminal devices in motion send sensing signals to the target at different times based on configuration information sent by the access network device; and terminal devices send sensing signals of different frequency bands to the target based on configuration information sent by the access network device.

[0250] S901d: Access network devices receive the raw echo signal of sensing signals based on sensing resources.

[0251] In this process, the access network equipment receives the original echo signal reflected back from the sensing imaging target based on the sensing resources indicated by the second information, and the sensing signal is sent by the terminal equipment.

[0252] S901e, the echo signal of the sensing signal reported by the access network device.

[0253] The access network device reports the echo signal of the received sensing signal to the core network device. Optionally, before reporting the echo signal, the access network device may preprocess the original echo signal of the sensing signal to obtain a second echo signal. The preprocessing of the original echo signal by the access network device includes, but is not limited to, pulse compression, filtering, noise reduction, and Fourier transform. This application embodiment does not limit the preprocessing method for the original echo signal.

[0254] S901f: The terminal device reports status information to the access network device.

[0255] Specifically, the status information reported by the terminal device to the access network device is its status information at the time it sends the sensing signal, thereby ensuring the correspondence between the terminal device's status information and the sensing signal it sends. For example, the terminal device reports its status information at the time of sending the sensing signal to the access network device based on the second information.

[0256] Optionally, the terminal device collects and reports its status information during the sensing process based on the third information; or the terminal device reports its pre-collected status information during the sensing process based on the third information.

[0257] Optionally, the terminal device may report the type and / or dimension of its state during the sensing process based on the fourth information.

[0258] Optionally, a quantification and grading index for the acceleration information reported by the terminal device can be provided. This index is a comparison between the terminal device's acceleration information and a quantification and grading threshold. The quantification and grading threshold can be stored locally on the terminal device or sent to the terminal device by the network device via the fifth information.

[0259] When a terminal device reports status information to the core network device, it can do so directly through the NAS layer protocol or by transmitting the information through the access network device. This application does not limit the method by which the terminal device reports information to the core network device.

[0260] For example, steps S901e and S901f can be executed simultaneously or sequentially. This application embodiment does not limit the reporting order of the status information and the echo signal of the sensing signal.

[0261] S903. The core network equipment receives the echo signal of the sensing signal reported by the access network equipment, the core network equipment receives the status information reported by the terminal equipment, and the core network equipment processes the echo signal of the sensing signal according to the status information to obtain echo data.

[0262] For example, the core network device receives the echo signal of the sensing signal reported by the access network device according to the sensing resources indicated by the second information, and the core network device receives the status information reported by the terminal device according to the sensing resources indicated by the second information. The core network device weights and / or filters the echo signal of the sensing signal according to the status information to obtain echo data.

[0263] S905, core network equipment performs sensing and imaging based on echo data.

[0264] Referring to Figure 10, which is a flowchart illustrating another communication method provided in an embodiment of this application, the terminal device performs downlink sensing based on the sensing resources configured by the core network equipment. As shown in Figure 10, the method may include the following steps:

[0265] S1001a and the core network equipment respectively send configuration information to the access network equipment and the terminal equipment.

[0266] Optionally, the core network device sends second information to both the terminal device and the access network device, the second information being used to configure the sensing resources for the sensing signal. Optionally, the core network device sends the second information to the access network device, the second information being used to configure the sensing resources for the sensing signal, and the access network device receives and forwards the second information to the terminal device. This application embodiment does not limit the order in which the configuration information is sent to the terminal device and the access network device.

[0267] For example, sensing resources refer to the time-domain and frequency-domain resources used by the terminal device to transmit sensing signals or receive the original echo signals of sensing signals during the sensing process. For instance, it can be a region on a two-dimensional time-frequency resource grid defined by the combination of frequency-domain subcarriers and time-domain symbols in wireless communication. Furthermore, resources can also include spatial-domain resources and code-domain resources, and can be considered as resource pairs formed by time-domain resources, frequency-domain resources, spatial-domain resources, and code-domain resources. This application does not limit the sensing resources used to configure sensing signals in its embodiments.

[0268] Optionally, the core network device sends third information to the terminal device, which instructs the terminal device to report and / or measure the first information. For example, the terminal device can measure and / or report its state during the sensing process based on the third information.

[0269] Optionally, the network device sends a fourth piece of information to the terminal device. This fourth piece of information indicates the type and / or dimension of the acceleration information reported by the terminal device. For example, the type of acceleration information indicates the type of acceleration information in the first piece of information that the terminal device needs to report, such as linear acceleration information and / or angular acceleration information; the dimension information indicates the dimension included in the acceleration information in the first piece of information reported by the terminal device, such as the x-axis or pitch angle.

[0270] Optionally, the network device sends a fifth piece of information to the terminal device, which is used to indicate the quantification and grading threshold of the state information of the terminal device's sensing process.

[0271] For example, access network devices can send configuration information to terminal devices via the Physical Downlink Shared Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), or Physical Broadcast Channel (PBCH); core network devices can send configuration information to terminal devices via the Public Land Mobile Network (PLMN); core network devices can send configuration information via access network devices under the N2 and N3 interfaces. This application embodiment does not limit the number and type of signaling for sending configuration information.

[0272] S1001b: Access network devices send sensing signals based on sensing resources.

[0273] In this process, the access network equipment sends sensing signals to the sensing imaging target based on the sensing resources indicated by the second information.

[0274] S1001c: The terminal device receives the raw echo signal of the sensing signal based on the sensing resources.

[0275] The terminal device receives the original echo signal reflected back from the sensing imaging target based on the sensing resources indicated by the second information.

[0276] For example, terminal devices distributed in different locations receive the raw echo signals reflected back from the sensing imaging target based on sensing resources; terminal devices in motion receive the raw echo signals reflected back from the sensing imaging target based on sensing resources at different times; and terminal devices receive raw echo signals reflected back from the sensing imaging target based on sensing signals of different frequency bands based on sensing resources.

[0277] S1001d: The echo signal of the terminal equipment reporting status information and sensing signals to the core network equipment.

[0278] Specifically, the status information reported by the terminal device to the core network device is its status information at the time of receiving the original echo signal of the sensed signal, thereby ensuring the correspondence between the terminal device's status information and the original echo signal of the sensed signal it received. For example, the terminal device reports its status information at the moment of receiving the original echo signal of the sensed signal to the core network device based on the second information.

[0279] When a terminal device reports status information and echo signals to a core network device, this application embodiment does not limit the reporting order of status information and echo signals or the number and type of signaling used for reporting.

[0280] For example, a terminal device can use one signaling message to report status information and echo signals to the core network device simultaneously, or the terminal device can use two signaling messages to report status information and echo signals to the core network device sequentially or simultaneously.

[0281] When a terminal device reports status information and echo signals to the core network device, it can report the information directly to the core network device through the NAS layer protocol, or it can report the information through the access network device. This application embodiment does not limit the means by which the terminal device reports information to the core network device.

[0282] Optionally, the terminal device collects and reports its status information during the sensing and imaging process based on the third information; or the terminal device reports its pre-collected status information during the sensing and imaging process based on the third information.

[0283] Optionally, the terminal device may report the type and / or dimension of its state during the sensing and imaging process based on the fourth information.

[0284] Optionally, a quantification and grading index for the acceleration information reported by the terminal device can be provided. This index is a comparison between the terminal device's acceleration information and a quantification and grading threshold. The quantification and grading threshold can be stored locally on the terminal device or sent to the terminal device by the network device via the fifth information.

[0285] Optionally, the terminal device may preprocess the raw echo signal of the sensed signal before reporting the echo signal. Preprocessing of the raw echo signal by the terminal device includes pulse compression, filtering, noise reduction, and Fourier transform. This application embodiment does not limit the preprocessing methods for the raw echo signal.

[0286] S1003. The core network equipment receives the status information and the echo signal of the sensing signal reported by the terminal equipment, and processes the echo signal of the sensing signal according to the status information to obtain echo data.

[0287] For example, the core network device receives the echo signal and status information of the sensing signal reported by the terminal device based on the sensing resources indicated by the second information. The core network device then weights and / or filters the echo signal of the sensing signal according to the status information to obtain echo data.

[0288] S1005, The first network device performs sensing imaging based on echo data.

[0289] The various embodiments of this application can be implemented independently or in combination, without limitation. Unless otherwise specified or in conflict of logic, the terminology and / or descriptions between the different embodiments provided in this application are consistent and can be referenced mutually. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0290] It is understood that in the embodiments of this application, the executing entity may perform some or all of the steps in the embodiments of this application. These steps or operations are examples, and the embodiments of this application may also perform other operations or variations of various operations. In addition, the steps may be performed in different orders as presented in the embodiments of this application, and it is not necessary to perform all the operations in the embodiments of this application.

[0291] The foregoing primarily describes the solutions provided in this application from the perspective of device-to-device interaction. It is understood that each device, in order to achieve the aforementioned functions, includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0292] This application embodiment can divide each device into functional modules according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. The module division in this application embodiment is illustrative and represents a logical functional division; in actual implementation, there may be other division methods.

[0293] With each function divided into a functional module, Figure 11 shows a communication device 1100. This communication device 1100 can perform the actions performed by the terminal device or network device in the methods shown in Figures 4 to 10. All relevant content of each step involved in the above method embodiments can be referred to the functional description of the corresponding functional module. The technical effects that can be obtained can be referred to the above method embodiments, and will not be repeated here.

[0294] The transmitting device 1100 may include a transceiver module 1102 and a processing module 1101. Exemplarily, the transmitting device 1100 may be a communication device, or a chip or other combination device or component having the aforementioned transmitting device functions applied in a communication device. When the transmitting device 1100 is a communication device, the transceiver module 1102 may be a transceiver, which may include an antenna and radio frequency circuits, etc.; the processing module 1101 may be a processor (or processing circuit), such as a baseband processor, which may include one or more CPUs. When the transmitting device 1100 is a component having the aforementioned transmitting device functions, the transceiver module 1102 may be a radio frequency unit; the processing module 1101 may be a processor (or processing circuit), such as a baseband processor. When the transmitting device 1100 is a chip system, the transceiver module 1102 may be an input / output interface of a chip (e.g., a baseband chip); the processing module 1101 may be a processor (or processing circuit) of the chip system, and may include one or more central processing units. It should be understood that the transceiver module 1102 in the embodiments of this application can be implemented by a transceiver or transceiver-related circuit components; the processing module 1101 can be implemented by a processor or processor-related circuit components (or, referred to as processing circuit).

[0295] For example, the transceiver module 1102 can be used to perform all the transceiver operations performed by the terminal device or network device in the embodiments shown in Figures 4 to 10, and / or to support other processes of the technology described herein; the processing module 1101 can be used to perform all operations other than the transceiver operations performed by the terminal device or network device in the embodiments shown in Figures 4 to 10, and / or to support other processes of the technology described herein.

[0296] As another possible implementation, the transceiver module 1102 in Figure 11 can be replaced by a transceiver unit that integrates the functions of the transceiver module 1102; the processing module 1101 can be replaced by a processor that integrates the functions of the processing module 1101. Furthermore, the transmitting end device 1100 shown in Figure 11 may also include a memory. Alternatively, when the processing module 1101 is replaced by a processor and the transceiver module 1102 is replaced by a transceiver unit,

[0297] The communication device involved in the embodiments of this application may also be the communication device 1200 shown in FIG12.

[0298] The processor can be logic circuit 1201, and the transceiver can be interface circuit 1202. Furthermore, the communication device 1200 shown in FIG120 may also include a memory 1203.

[0299] This application also provides a communication device, as shown in FIG13. This communication device can be applied to the methods shown in the embodiments of FIG4 to FIG10. As shown in FIG13, the communication device includes a processing module and a transceiver module. The processing module may be one or more processors, and the transceiver module may be a transceiver or a communication interface. This communication device can be used to implement the terminal device or network device involved in any of the above method embodiments, or to implement the functions of the device involved in any of the above method embodiments. The device or device function may be a network component in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (e.g., a cloud platform). Optionally, the communication device may further include a storage module for storing the program code and data of the communication device.

[0300] To achieve the above functions, the chip of this application may include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art will readily recognize that, based on the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0301] In one possible implementation, when the transmitting or receiving device is a chip, the transceiver module can be a communication interface, pins, or circuits. The communication interface can be used to input data to be processed to the processor and can output the processor's processing results. Specifically, the communication interface can be a general purpose input / output (GPIO) interface, which can connect to multiple peripheral devices (such as LCD displays, cameras, radio frequency (RF) modules, antennas, etc.). The communication interface is connected to the processor via a bus.

[0302] The processing module can be a processor, which can execute computer execution instructions stored in the storage module to cause the chip to execute the methods involved in the embodiments shown in Figures 4 to 8. Further, the processor may include a controller, an arithmetic logic unit (ALU), and registers. For example, the controller is mainly responsible for instruction decoding and issuing control signals for the operations corresponding to the instructions. The ALU is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations, and can also perform address operations and conversions. The registers are mainly responsible for storing register operands and intermediate operation results temporarily stored during instruction execution. In specific implementations, the processor's hardware architecture can be an ASIC architecture, a microprocessor without interlocked piped stages architecture (MIPS), an advanced reduced instruction set machine (RISC) machine (ARM) architecture, or a network processor (NP) architecture, etc. The processor can be single-core or multi-core. The storage module can be an internal storage module of the chip, such as registers or caches. The storage module can also be an external storage module, such as ROM or other types of static storage devices that can store static information and instructions, RAM, etc.

[0303] It should be noted that the functions of the processor and interface can be implemented through hardware design, software design, or a combination of both; no restrictions are imposed here.

[0304] This application also provides a computer program product that, when executed by a computer, can implement the functions of any of the above method embodiments.

[0305] This application also provides a computer program that, when executed by a computer, can implement the functions of any of the above method embodiments.

[0306] This application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be implemented by a computer program instructing related hardware. This program can be stored in the computer-readable storage medium, and when executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be an internal storage unit of the terminal device (including a data transmitter and / or a data receiver) in any of the foregoing embodiments, such as the hard disk or memory of the terminal device. The computer-readable storage medium can also be an external storage device of the terminal device, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the terminal device. Further, the computer-readable storage medium can include both internal storage units and external storage devices of the terminal device. The computer-readable storage medium is used to store the computer program and other programs and data required by the terminal device. The computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0307] The terms "first" and "second," etc., used in the specification, claims, and drawings of this application are used to distinguish different objects, not to describe a specific order. "First" and "second" are for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this embodiment, unless otherwise stated, "a plurality of" means two or more.

[0308] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0309] It should be understood that in this application, "at least one (item)" means one or more. "More than one" means two or more. "At least two (items)" means two or three or more. "And / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple. Both "...when" and "if" indicate that a corresponding action will be taken under certain objective circumstances. They are not time limits, nor do they require a judgment action to be taken when the action is taken, nor do they imply any other limitations.

[0310] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0311] In this application, "sending information to... (terminal device or network device)" can be understood as the destination of the information being a terminal device or network device. This can include sending information directly or indirectly to a terminal device or network device. "Receiving information from... (terminal device or network device)" can be understood as the source of the information being a terminal device or network device, and can include receiving information directly or indirectly from a terminal device or network device. Information may undergo necessary processing between the source and destination, such as format changes, but the destination can understand the valid information from the source.

[0312] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0313] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are illustrative. For instance, the division of modules or units is a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0314] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units; that is, it can be located in one place or distributed in multiple different locations. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0315] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0316] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of this application embodiment, or all or part of the technical solution, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

Claims

1. A communication method, characterized in that, Applied to a terminal device, the method includes: Send a first message, which is used to indicate the state of the terminal device during the process of sensing the imaging target.

2. The method according to claim 1, characterized in that, The state of the terminal device during the process of sensing the imaging target includes: the acceleration information of the terminal device, which includes at least one of the following: linear acceleration information and angular acceleration information.

3. The method according to claim 1 or 2, characterized in that, The first information also includes the orientation information of the terminal device during the sensing process, wherein the orientation information is the direction corresponding to the line connecting the terminal device and the sensing imaging target.

4. The method according to claim 3, characterized in that, The acceleration information is the projection value of the linear acceleration information onto the indicated direction of the directional information, or the acceleration information is the angular acceleration component of the roll angle and / or pitch angle in a local coordinate system, wherein the local coordinate system is a coordinate system with the z-axis as the indicated direction of the directional information.

5. The method according to any one of claims 1-4, characterized in that, Before sending the first information, the method further includes: Receive second information, which is used to configure the sensing resources of the sensing signal.

6. The method according to any one of claims 1-4, characterized in that, Before sending the first information, the method further includes: Receive third information, which is used to instruct the terminal device to report and / or measure the first information.

7. The method according to any one of claims 1-4, characterized in that, Before sending the first information, the method further includes: Receive fourth information, which is used to indicate the type and / or dimension of the acceleration information reported by the terminal device.

8. The method according to any one of claims 1-4, characterized in that, Before sending the first information, the method further includes: The fifth information is received, which is used to indicate the quantization and grading threshold of the state information of the terminal device's sensing process.

9. A communication method, characterized in that, Applied to network devices, the method includes: Receive first information, which is used to indicate the state of the terminal device during the process of sensing the imaging target. Based on the first information, the echo signals of the sensed signal are weighted and / or filtered to obtain echo data. The echo data is used to achieve sensing imaging.

10. The method according to claim 9, characterized in that, The state of the terminal device during the process of sensing the imaging target includes: the acceleration information of the terminal device.

11. The method according to claim 10, characterized in that, The acceleration information includes linear acceleration values, and the weighting and / or filtering of the echo signal of the sensed signal based on the first information includes: The echo signal of the sensing signal is weighted and / or filtered based on the projection value of the linear acceleration value in the first direction, where the first direction is the direction corresponding to the line connecting the terminal device and the sensing imaging target.

12. The method according to claim 10 or 11, characterized in that, The acceleration information includes angular acceleration values, and the weighting and / or filtering of the echo signal of the sensed signal based on the first information includes: Based on the angular acceleration values ​​in the local coordinate system, specifically the roll angle acceleration value and / or pitch angle acceleration value, the echo signal of the sensing signal is weighted and / or filtered. The local coordinate system is a coordinate system in which the direction of the terminal device relative to the sensing imaging target is the z-axis.

13. The method according to any one of claims 10-12, characterized in that, Weighting the echo signal of the sensed signal includes: The echo data is obtained by applying a corresponding weighting coefficient to the echo signal corresponding to the acceleration information. The weighting coefficient is calculated based on the acceleration information according to the mapping function.

14. The method according to any one of claims 10-12, characterized in that, Filtering the echo signal of the sensed signal includes: The echo signals corresponding to acceleration information less than a first threshold are selected as echo data.

15. The method according to any one of claims 9-14, characterized in that, Before receiving the first information, the method further includes: Send a second message, which is used to configure the sensing resources of the sensing signal.

16. The method according to any one of claims 9-15, characterized in that, The network device is a core network device or an access network device.

17. A communication device, characterized in that, include: A module for performing the method as described in any one of claims 1-8, or a module for performing the method as described in any one of claims 9-16.

18. A communication device, characterized in that, include: processor; The processor is configured to execute a computer program or instructions via logic circuitry and / or by means of any one of claims 1-8 or 9-16, such that the method described in any one of claims 9-16 is performed.

19. A communication device, characterized in that, include: At least one processor; The processor is configured to execute a computer program or instructions via logic circuitry and / or by means of any one of claims 1-8 or 9-16, such that the method described in any one of claims 9-16 is performed.

20. The apparatus according to claim 19, characterized in that, The communication device further includes a memory for storing computer programs or instructions.

21. A communication device, characterized in that, The communication device includes an interface circuit and a logic circuit; the interface circuit is used for inputting and / or outputting information; the logic circuit is used to perform the method as described in any one of claims 1-8 or 9-16.

22. A communication chip, characterized in that, It stores instructions that, when the chip is running on a communication device, cause the method as described in any one of claims 1-8 or claims 9-16 to be executed.

23. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a computer, cause the method as claimed in any one of claims 1-8 or 9-16 to be performed.

24. A computer program product, characterized in that, The computer program product includes: a computer program or instructions that, when some or all of the computer program or instructions are run on a computer, cause the method as claimed in any one of claims 1-8 or claims 9-16 to be performed.

25. A communication system, characterized in that, include: A terminal device for performing the method as described in any one of claims 1-8, and a network device for performing the method as described in any one of claims 9-16.

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