Sensing method and corresponding apparatus

Abstract

Provided in the present application is a sensing method, which can be applied to an integrated sensing and communication (ISAC) communication system. The method comprises: a sensing node obtaining scanning information of a transmitted beam corresponding to a first area, wherein the scanning information of the transmitted beam comprises a parameter for indicating a scanning interval, or is determined on the basis of the scanning interval, the scanning interval is determined on the basis of a first range, the first range is determined on the basis of a first resolution, and the first resolution meets the resolution requirements of an imaging result of the first area; and transmitting a first beam on the basis of the scanning information of the transmitted beam, wherein the first beam is used for scanning the first area. In the present application, the upper limit of the first range can satisfy the sensing gain of sensing imaging, and the lower limit of the first range can avoid the infinite reduction in the scanning interval, such that the scanning overhead can be effectively reduced. Thus, determining the scanning interval on the basis of the first range can take the sensing gain into account, and can also reduce the scanning overhead.

Description

A sensing method and corresponding device

[0001] This application claims priority to Chinese Patent Application No. 202411239663.9, filed with the State Intellectual Property Office of China on September 4, 2024, entitled "A Sensing Method and Corresponding Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, specifically to a sensing method and corresponding device. Background Technology

[0003] In an integrated sensing and communication (ISAC) communication system, the transmitting end can transmit sensing signals to scan targets in the environment, and the receiving end can receive the echo signals reflected or scattered by the targets, process the echo signals to obtain the sensing results, and then make decisions or assist in decision-making based on the sensing results. In order to improve the accuracy of decision-making or decision-making assistance, higher requirements are placed on the sensing quality of the sensing results.

[0004] It has been found that by making some joint configurations to the transmitting and receiving ends and then performing joint scanning, a better sensing gain can be obtained, which can improve the sensing quality of the sensing results. Regarding the scenario of joint scanning, if the scanning parameters of the transmitting end are configured appropriately, a good sensing gain can be achieved. However, if the scanning parameters of the transmitting end are configured inappropriately, it may greatly increase the scanning overhead or result in false target points in the imaging results.

[0005] Therefore, in the scenario of joint scanning for transmitting and receiving, how to configure appropriate scanning parameters for the transmitting end has become an urgent technical problem to be solved. Summary of the Invention

[0006] This application provides a sensing method for obtaining high-quality imaging results with low scanning overhead. This application also provides corresponding apparatus, computer-readable storage media, and computer program products.

[0007] A first aspect of this application provides a sensing method, comprising: acquiring scanning information of a transmitted beam corresponding to a first region; wherein the scanning information of the transmitted beam includes parameters for indicating a scanning interval, or the scanning information of the transmitted beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region; transmitting a first beam according to the scanning information of the transmitted beam, the first beam being used to scan the first region.

[0008] The sensing method provided in this application can be applied to a first communication device, which can be a sensing node integrating transceiver or a transmitter of sensing signals. The first communication device can be a network device, a terminal device, or a chip in a network device or a chip in a terminal device; this application does not impose any restrictions on its implementation.

[0009] In this application, the first area can be a user-selected area, an area selected by a first communication device, or an area selected by a second communication device. The second communication device can be a central node, which can be a node that configures sensing parameters for the transmitting or receiving end of the sensing signal, and / or a node that aggregates sensing results. The central node can be a network device or a chip within a network device; alternatively, it can be other types of devices, such as a terminal device or a chip within a terminal device. The second communication device can also be a core network element, such as a sensing management function (SMF) network element or a location management function (LMF) network element. Finally, the second communication device can also be a receiver of the echo signal corresponding to the sensing signal.

[0010] In this application, the scanning information of the transmitted beam can be used to generate various information about the transmitted beam (first beam). Each first beam scans a sub-region within a first region, and the sub-regions scanned by different first beams do not overlap. The various information may include the scanning range in the azimuth direction, the scanning range in the elevation direction, the scanning interval, or parameters indicating the scanning interval. For example, if a minimum scanning granularity is agreed upon, the scanning interval can be indicated by a multiplier; the product of this multiplier and the minimum scanning granularity is the scanning interval for that sub-region. The scanning interval refers to the angular (or positional) interval between two adjacent transmitted beams. The scanning intervals between different adjacent transmitted beams can be the same or different. The various information may also include the transmission time of each first beam.

[0011] In this application, the first resolution can be selected by the user, and this first resolution satisfies the resolution requirements of the imaging results of the first region. In a perception scenario, resolution refers to the minimum interval in the imaging results that can distinguish adjacent targets, such as distance interval or angular interval, which determines the fineness of the imaging and the target discrimination capability. Resolution requirement refers to the minimum interval that the resolution should meet, such as the minimum distance interval or minimum angular interval required to be met.

[0012] In the first aspect described above, the first range is determined by a first resolution. Thus, the upper limit of the first range satisfies the sensing gain of the sensing image, and a better sensing quality imaging result can be obtained by using the upper limit of the first range. The lower limit of the first range avoids infinitely shrinking the scanning interval, effectively reducing scanning overhead. Therefore, the solution provided in this application, which determines the scanning information of the transmitted beam for beam scanning based on the scanning interval determined by the first range, can both obtain a high-quality sensing image result and effectively reduce scanning overhead.

[0013] In one possible implementation, the first resolution is no greater than the second resolution, which is a resolution determined by the transmitting capability of the transmitter and the receiving capability of the receiver.

[0014] In this possible implementation, the second resolution can be a theoretical value determined based on the transmitting end's transmission capability and the receiving end's receiving capability. The first resolution is no greater than the second resolution; that is, the first resolution is less than or equal to the second resolution. This maximizes the utilization of the transmitting end's transmission capability and the receiving end's receiving capability, thereby improving the resource utilization rate of both the transmitting and receiving ends.

[0015] In one possible implementation, the first scope is associated with a perception algorithm, which includes a solution-based perception algorithm or a matching-based perception algorithm.

[0016] In this possible implementation, solution-based sensing algorithms refer to those that determine the imaging result by solving a solution space, such as compressed sensing (CS) algorithms, which determine the imaging result by calculating the solution space. Matching-based sensing algorithms refer to those that determine the imaging result by matched filtering, such as digital beamforming (DBF) or fast Fourier transform (FFT) algorithms, which determine the imaging result by performing matched filtering on the echo signal. In this application, the first range is associated with the sensing algorithm, which can improve the accuracy of the first range used by different sensing algorithms, thereby improving the sensing quality of the imaging result.

[0017] In one possible implementation, the perception algorithm is a solution-based perception algorithm. The first range is determined by the first resolution, the receiving capability of the receiver, and the sparsity of the second region. The sparsity of the second region is used to characterize the number of targets in the second region, and the second region is contained within the first region.

[0018] In this application, the second region is a sub-region of the first region, and each second region corresponds to a transmission beam.

[0019] In this possible implementation, when a solution-based perception algorithm is used, the first range is not only related to the first resolution, but also to the sparsity of the second region, that is, to the number of targets in the second region. This is more conducive to determining the first range by combining the number of targets, which can improve the accuracy of the first range determination.

[0020] In one possible implementation, the first range includes a range in the azimuth direction and a range in the pitch direction, and the second region includes a dimension in the pitch direction and a dimension in the azimuth direction; wherein the relationship between the range in the pitch direction and the dimension in the pitch direction is as follows: The relationship between the range in the azimuth direction and the size in the azimuth direction is: Where, d θ The dimension is in the pitch direction. Let g be the dimension in the azimuth direction. θ The first resolution in the pitch direction, This is the first resolution in the azimuth direction. This refers to the number of receiving antenna elements in the elevation direction. Let be the number of receiving antenna elements in the azimuth direction, k be the sparsity of the second region, and β be a constant.

[0021] In this possible implementation, the size refers to the angular range. The lower limits of the first range in both the azimuth and elevation directions are related to the number of receiving antenna elements at the receiver. This allows us to determine the upper limit of the sensing capability, which is beneficial for achieving better sensing performance. The upper limit of the first range is related to the number and sparsity of the receiving elements at the receiver, which can balance scanning overhead with good sensing performance.

[0022] In one possible implementation, the perception algorithm is a matching-based perception algorithm, and the first range is determined by the product of the second resolution and the coefficients, where the coefficients range from (1 / 3 to 1).

[0023] In this possible implementation, the second resolution is a theoretical value determined by the transmitting capability of the transmitter and the receiving capability of the receiver. A suitable range is chosen from this theoretical value to determine the scanning interval, achieving both good sensing performance and manageable scanning overhead.

[0024] In one possible implementation, the above step of obtaining scanning information of the transmitted beam corresponding to the first region includes:

[0025] The first communication device receives scanning information of the transmission beam corresponding to the first region from the second communication device; wherein the scanning information of the transmission beam corresponding to the first region is determined by the size of the second region, wherein the size of each second region is determined by the second communication device based on the transmission capability of the transmitting end and the receiving capability of the receiving end and the sparsity of each second region.

[0026] In this possible implementation, the second communication device can assist the first communication device in determining the scanning information of the transmission beam corresponding to the first region, and then send the scanning information of the transmission beam corresponding to the first region to the first communication device. In this way, the first communication device can quickly perform beam scanning, and the second communication device can assist in the calculation, which can reduce the computational burden on the first communication device.

[0027] In one possible implementation, the above step of obtaining scanning information of the transmitted beam corresponding to the first region includes:

[0028] Based on the transmitting capability of the transmitter and the receiving capability of the receiver, as well as the sparsity of each second region, the size of each second region is determined; based on the size of each second region, the scanning information of the transmitting beam corresponding to the first region is determined.

[0029] In this possible implementation, the first communication device calculates the size of each second region on its own, which can reduce the dependence of the first communication device on the second communication device.

[0030] In one possible implementation, the above step of determining the scanning information of the transmitted beam corresponding to the first region based on the size of each second region includes:

[0031] The second resolution is determined based on the transmitting capability of the transmitting end and the receiving capability of the receiving end. The second resolution is used to determine the first resolution.

[0032] A first range corresponding to the second region is determined based on the first resolution, and the first range of the second region is used to determine the size of the second region.

[0033] Based on the size of the second region, the scanning interval of adjacent beams is determined. The scanning interval of adjacent beams is used to determine the scanning information of the transmitted beam corresponding to the first region.

[0034] In this possible implementation, determining the second resolution first and then the first resolution can improve the utilization of resources at the transmitting and receiving ends. Then, based on the first resolution, the first range is determined, and the scanning information of the transmitted beam is determined. This can achieve better sensing performance while also taking into account scanning overhead.

[0035] A second aspect of this application provides a sensing method, comprising: acquiring scanning information of a transmitted beam corresponding to a first region; wherein the scanning information of the transmitted beam includes parameters for indicating a scanning interval, or the scanning information of the transmitted beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region; and transmitting the scanning information of the transmitted beam corresponding to the first region to a first communication device; wherein the scanning information of the transmitted beam is used by the first communication device to transmit a first beam, and the first beam is used to scan the first region.

[0036] In the second aspect described above, the first range is determined by a first resolution. Thus, the upper limit of the first range satisfies the sensing gain of the sensing image, and a better sensing quality imaging result can be obtained by using the upper limit of the first range. The lower limit of the first range avoids infinitely shrinking the scanning interval, effectively reducing scanning overhead. Therefore, the solution provided in this application, which determines the scanning information of the transmitted beam based on the scanning interval according to the first range and provides it to the first communication device for beam scanning, enables the first beam transmitted by the first communication device to obtain both a high sensing quality imaging result and effectively reduce scanning overhead.

[0037] In one possible implementation, the first resolution is no greater than the second resolution, which is a resolution determined by the transmitting capability of the transmitter and the receiving capability of the receiver.

[0038] In one possible implementation, the first scope is associated with a perception algorithm, which includes a solution-based perception algorithm or a matching-based perception algorithm.

[0039] In one possible implementation, the perception algorithm is a solution-based perception algorithm. The first range is determined by the first resolution, the receiving capability of the receiver, and the sparsity of the second region. The sparsity of the second region is used to characterize the number of targets in the second region, and the second region is contained within the first region.

[0040] In one possible implementation, the first range includes a range in the azimuth direction and a range in the pitch direction, and the second region includes a dimension in the pitch direction and a dimension in the azimuth direction; wherein the relationship between the range in the pitch direction and the dimension in the pitch direction is as follows: The relationship between the range in the azimuth direction and the size in the azimuth direction is: Where, d θ The dimension is in the pitch direction. Let g be the dimension in the azimuth direction. θ The first resolution in the pitch direction, This is the first resolution in the azimuth direction. The number of receiving elements in the pitch direction. denoted by , k represents the number of receiver elements in the azimuth direction, k represents the sparsity of the second region, and β is a constant.

[0041] In one possible implementation, the perception algorithm is a matching-based perception algorithm, and the first range is determined by the product of the second resolution and the coefficients, where the coefficients range from (1 / 3 to 1).

[0042] In one possible implementation, the above step of obtaining scanning information of the transmitted beam corresponding to the first region includes:

[0043] The size of each second region is determined based on the transmitting capability of the transmitter and the receiving capability of the receiver, as well as the sparsity of each second region; wherein the size of each second region is used to determine the scanning information of the transmitting beam corresponding to the first region.

[0044] In one possible implementation, the above steps, including determining the size of each second region based on the transmitting capability of the transmitter, the receiving capability of the receiver, and the sparsity of each second region, include:

[0045] The second resolution is determined based on the transmitting capability of the transmitting end and the receiving capability of the receiving end. The second resolution is used to determine the first resolution.

[0046] A first range corresponding to the second region is determined based on the first resolution, and the first range of the second region is used to determine the size of the second region.

[0047] Based on the size of the second region, the size of the adjacent beams is determined, and the size of the adjacent beams is used to determine the scanning information of the transmitted beam corresponding to the first region.

[0048] A third aspect of this application provides a communication device, comprising: a transceiver unit and a processing unit; wherein,

[0049] The processing unit is configured to acquire scanning information of the transmitted beam corresponding to the first region; wherein the scanning information of the transmitted beam includes parameters for indicating the scanning interval, or the scanning information of the transmitted beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region.

[0050] The transceiver unit is used to transmit a first beam based on the scanning information of the transmitted beam, and the first beam is used to scan a first region.

[0051] In one possible implementation, the first resolution is no greater than the second resolution, which is a resolution determined by the transmitting capability of the transmitter and the receiving capability of the receiver.

[0052] In one possible implementation, the first scope is associated with a perception algorithm, which includes a solution-based perception algorithm or a matching-based perception algorithm.

[0053] In one possible implementation, the perception algorithm is a solution-based perception algorithm. The first range is determined by the first resolution, the receiving capability of the receiver, and the sparsity of the second region. The sparsity of the second region is used to characterize the number of targets in the second region, and the second region is contained within the first region.

[0054] In one possible implementation, the first range includes a range in the azimuth direction and a range in the pitch direction, and the second region includes a dimension in the pitch direction and a dimension in the azimuth direction; wherein the relationship between the range in the pitch direction and the dimension in the pitch direction is as follows: The relationship between the range in the azimuth direction and the size in the azimuth direction is: Where, d θ The dimension is in the pitch direction. Let g be the dimension in the azimuth direction. θ The first resolution in the pitch direction, This is the first resolution in the azimuth direction. The number of receiving elements in the pitch direction. denoted by , k represents the number of receiver elements in the azimuth direction, k represents the sparsity of the second region, and β is a constant.

[0055] In one possible implementation, the perception algorithm is a matching-based perception algorithm, and the first range is determined by the product of the second resolution and the coefficients, where the coefficients range from (1 / 3 to 1).

[0056] In one possible implementation, the transceiver unit is further configured to receive scanning information of the transmit beam corresponding to the first region from the second communication device; wherein the scanning information of the transmit beam corresponding to the first region is determined by the size of the second region, wherein the size of each second region is determined by the second communication device based on the transmit capability of the transmitter and the receive capability of the receiver and the sparsity of each second region.

[0057] In one possible implementation, the processing unit is configured to determine the size of each second region based on the transmission capability of the transmitter and the reception capability of the receiver, as well as the sparsity of each second region; and to determine the scanning information of the transmission beam corresponding to the first region based on the size of each second region.

[0058] In one possible implementation, the processing unit is configured to determine a second resolution based on the transmission capability of the transmitter and the reception capability of the receiver, the second resolution being used to determine the first resolution; determine a first range corresponding to the second region based on the first resolution, the first range of the second region being used to determine the size of the second region; and determine the scanning interval of adjacent beams based on the size of the second region, the scanning interval of adjacent beams being used to determine the scanning information of the transmission beam corresponding to the first region.

[0059] A fourth aspect of this application provides a communication device, comprising: a transceiver unit and a processing unit; wherein,

[0060] The processing unit is configured to acquire scanning information of the transmitted beam corresponding to the first region; wherein the scanning information of the transmitted beam includes parameters for indicating the scanning interval, or the scanning information of the transmitted beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region.

[0061] The transceiver unit is used to send scanning information of the transmit beam corresponding to the first area to the first communication device; wherein the scanning information of the transmit beam is used by the first communication device to transmit a first beam, and the first beam is used to scan the first area.

[0062] In one possible implementation, the first resolution is no greater than the second resolution, which is a resolution determined by the transmitting capability of the transmitter and the receiving capability of the receiver.

[0063] In one possible implementation, the first scope is associated with a perception algorithm, which includes a solution-based perception algorithm or a matching-based perception algorithm.

[0064] In one possible implementation, the perception algorithm is a solution-based perception algorithm. The first range is determined by the first resolution and the receiving capability of the receiver, as well as the sparsity of the second region. The sparsity of the second region is used to characterize the number of targets in the second region, and the second region is contained within the first region.

[0065] In one possible implementation, the first range includes a range in the azimuth direction and a range in the pitch direction, and the second region includes a dimension in the pitch direction and a dimension in the azimuth direction; wherein the relationship between the range in the pitch direction and the dimension in the pitch direction is as follows: The relationship between the range in the azimuth direction and the size in the azimuth direction is: Where, d θ The dimension is in the pitch direction. Let g be the dimension in the azimuth direction. θ The first resolution in the pitch direction, This is the first resolution in the azimuth direction. The number of receiving elements in the pitch direction. denoted by , k represents the number of receiver elements in the azimuth direction, k represents the sparsity of the second region, and β is a constant.

[0066] In one possible implementation, the perception algorithm is a matching-based perception algorithm, and the first range is determined by the product of the second resolution and the coefficients, where the coefficients range from (1 / 3 to 1).

[0067] In one possible implementation, the processing unit is used to determine the size of each second region based on the transmission capability of the transmitter and the reception capability of the receiver, as well as the sparsity of each second region; wherein the size of each second region is used to determine the scanning information of the transmission beam corresponding to the first region.

[0068] In one possible implementation, the processing unit is configured to determine a second resolution based on the transmission capability of the transmitter and the reception capability of the receiver, the second resolution being used to determine the first resolution; determine a first range corresponding to the second region and the size of the second region based on the first resolution; and determine the scanning interval of adjacent beams based on the size of the second region, the scanning interval of adjacent beams being used to determine the scanning information of the transmission beam corresponding to the first region.

[0069] A fifth aspect of this application provides a communication device including a processor. The processor is configured to invoke and execute a computer program stored in a memory, causing the processor to implement as described in the first aspect or any of the implementations of the first aspect.

[0070] Optionally, the communication device also includes a transceiver; the processor is also used to control the transceiver to send and receive signals.

[0071] Optionally, the communication device includes a memory in which a computer program is stored.

[0072] The communication device mentioned in the fifth aspect above can be a device or a chip (system) in a device.

[0073] A sixth aspect of this application provides a communication device including a processor. The processor is configured to invoke and execute a computer program stored in a memory, causing the processor to implement as described in the second aspect or any of the implementations in the second aspect.

[0074] Optionally, the communication device also includes a transceiver; the processor is also used to control the transceiver to send and receive signals.

[0075] Optionally, the communication device includes a memory in which a computer program is stored.

[0076] The communication device described in the sixth aspect above can be a device or a chip (system) in a device.

[0077] The seventh aspect of this application provides a communication device, which may be a first communication device or a module or unit (e.g., a chip, a chip system, or a circuit) in the first communication device that performs the methods / operations / steps / actions described in the first aspect or any implementation of the first aspect.

[0078] The eighth aspect of this application provides a communication device, which may be a second communication device or a module or unit (e.g., a chip, a chip system, or a circuit) in the second communication device that performs the methods / operations / steps / actions described in the second aspect or any implementation thereof.

[0079] The ninth aspect of this application provides a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform an implementation as described in the first aspect or any of the first aspects.

[0080] The tenth aspect of this application provides a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform an implementation as described in the second aspect or any of the second aspects.

[0081] The eleventh aspect of this application provides a computer program product including instructions that, when run on a computer, cause the computer to perform an implementation as described in the first aspect or any of the first aspects.

[0082] The twelfth aspect of this application provides a computer program product including instructions that, when run on a computer, cause the computer to perform an implementation as described in the second aspect or any of the second aspects.

[0083] The thirteenth aspect of this application provides a chip device including a processor for calling a program stored in a memory, such that the processor executes the first aspect or any implementation thereof.

[0084] Optionally, the memory may be located inside or outside the chip device.

[0085] The fourteenth aspect of this application provides a chip device including a processor for calling a program stored in a memory, such that the processor executes the second aspect or any implementation thereof described above.

[0086] Optionally, the memory may be located inside or outside the chip device.

[0087] The fifteenth aspect of this application provides a communication system, which includes a first communication device and a second communication device. The first communication device is used to execute the first aspect or any one of the implementations of the first aspect, and the second communication device is used to execute the second aspect or any one of the implementations of the second aspect.

[0088] The technical effects of the second, third, or fourth aspects, or any possible implementation of the second, third, or fourth aspects, and the fifth to fifteenth aspects, can be found in the first aspect or the technical effects of different possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0089] Figure 1A is a schematic diagram of an example of a perception scenario provided in an embodiment of this application;

[0090] Figure 1B is another example schematic diagram of the perception scenario provided in the embodiments of this application;

[0091] Figure 2A is a schematic diagram illustrating beam configurations for different operating scenarios provided in the embodiments of this application.

[0092] Figure 2B shows the imaging results obtained using the digital beamforming algorithm at different scanning intervals provided in the embodiments of this application.

[0093] Figure 2C shows the imaging results obtained using the compressed sensing algorithm at different scanning intervals provided in the embodiments of this application;

[0094] Figure 3 is a schematic diagram of an embodiment of the sensing method provided in this application;

[0095] Figure 4 is a schematic diagram of another embodiment of the sensing method provided in this application;

[0096] Figure 5 is a schematic diagram of an example of sparsity provided in an embodiment of this application;

[0097] Figure 6 is a schematic diagram of another embodiment of the sensing method provided in this application;

[0098] Figure 7 is a schematic diagram of another embodiment of the sensing method provided in this application;

[0099] Figure 8 is a schematic diagram of another embodiment of the sensing method provided in this application;

[0100] Figures 9 to 13 are schematic diagrams of the communication device provided in the embodiments of this application. Detailed Implementation

[0101] The embodiments of this application are described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. As those skilled in the art will understand, with the development of technology and the emergence of new scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0102] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0103] This application provides a sensing method for obtaining high-quality imaging results with low scanning overhead. This application also provides corresponding apparatus, computer-readable storage media, and computer program products. These are described in detail below.

[0104] For ease of understanding, the technical terms involved in the embodiments of this application are briefly introduced below:

[0105] The technical solutions of this application can be applied to various communication systems, such as: satellite communication, 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication systems (UMTS), vehicle to everything (V2X) communication systems, and future communication networks or systems after 5G networks, etc.

[0106] In addition to having stronger communication capabilities, the aforementioned communication system can also have sensing capabilities. It can be a communication system with integrated sensing and communication (ISAC). An integrated sensing and communication system means that the communication system can communicate through communication signals (which can also be described as communication channels) and perform sensing and measurement through sensing signals (which can also be described as sensing channels).

[0107] In this application, "perception" refers to using the transmission, reflection, and scattering of radio waves (radio frequency signals) to sense the surrounding environment and detect targets. For example, in vehicle-to-everything (V2X) systems, sensing signals are used to detect other vehicles or objects around vehicles; in imaging systems, sensing signals are used to image target points (buildings, vehicles, and other tangible objects) in the environment. Of course, the communication system in this application can also be an industrial automation system or other communication systems that require sensing.

[0108] The communication system described in this application can be a communication system based on orthogonal frequency division multiplexing (OFDM) and / or time division multiplexing (TDM), or a communication system or communication and sensing system based on frequency modulated continuous waveform (FMCW).

[0109] For ease of understanding, the technical terms involved in the embodiments of this application are briefly introduced below:

[0110] 1. Sensing Node: A communication device used for sensing, which may include a transmitter (Tx), a receiver (Rx), or a transceiver integrated communication device.

[0111] 2. Transmitter: A communication device that transmits communication signals and / or sensing signals (SS), also known as a transmitting node or transmitting device.

[0112] 3. Receiver: A communication device that receives the echo signal of communication signals and / or sensing signals; it may also be called a receiving node or receiving device.

[0113] 4. Sensing Signal: This refers to the radio frequency signal used to sense the environment or target. SS can be a sensing reference signal (SERS), a positioning reference signal (PRS), or a sounding reference signal (SRS), etc. Sensing signals can be transmitted in the form of beams.

[0114] 5. Echo signal (ES): refers to the signal after the sensing signal has been transmitted, reflected or scattered. The sensing result can be determined by measuring the echo signal, which can be received by beamforming.

[0115] 6. Beam: A beam is a communication resource. A beam can be wide, narrow, or other types of beams. The technology used to form a beam can be beamforming technology or other techniques. Beamforming technology can specifically be digital beamforming technology, analog beamforming technology, and hybrid digital or analog beamforming technology. Different beams can be considered different resources. The beam used to transmit signals can be called the transmission beam (Tx beam), and the beam used to receive signals can be called the reception beam (Rx beam). The transmission beam refers to the distribution of signal strength in different directions in space after the signal is transmitted through the antenna, and the reception beam refers to the distribution of signal strength in different directions in space of the wireless signal received from the antenna.

[0116] 7. Central node: refers to the communication device that configures sensing parameters for the transmitting end or receiving end of the sensing signal, and / or the communication device that summarizes the sensing results.

[0117] 8. Perception Area: Also known as the Region of Interest (ROI), it typically refers to the area defined by the central node where perception measurements will be performed. The perception area usually includes the perception target. The perception target refers to objects in the environment, such as buildings, vehicles, or other objects.

[0118] 9. Sensing result (SR): refers to the result of sensing the target calculated from the echo signal.

[0119] 10. Imaging results: refers to the results obtained by sensing the target area through sensing signals and then processing the echo signals through imaging algorithms. It is usually represented in the form of point clouds.

[0120] 11. Image quality: refers to the performance indicators of the imaging result, such as resolution and blur-free image.

[0121] 12. Resolution: This refers to the minimum interval in an image that can distinguish adjacent targets, such as distance interval or angular interval. It determines the fineness of the image and the ability to distinguish targets. Resolution requirement refers to the minimum interval that the resolution should meet, such as the minimum distance interval or minimum angular interval required to be met.

[0122] 13. The terms "system" and "network" in the embodiments of this application can be used interchangeably. "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, 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 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 of A, B, and C" includes A, B, C, AB, AC, BC, or ABC. And, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the order, sequence, priority, or importance of multiple objects.

[0123] 14. In the embodiments of this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include sending directly via the air interface or sending indirectly via the air interface by other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which may include receiving directly from YY via the air interface or receiving indirectly from YY via the air interface by other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0124] In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, wiring, or interfaces.

[0125] It is understandable that information may undergo necessary processing, such as encoding and modulation, between the source and destination, but the destination can understand the valid information from the source. Similar statements in this application can be interpreted in a similar way and will not be elaborated further.

[0126] 15. In the embodiments of this application, "instruction" may include direct instruction and indirect instruction, as well as explicit instruction and implicit instruction. The information indicated by a certain piece of information (hereinafter referred to as instruction information) is called the information to be instructed. In the specific implementation process, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is an association between the other information and the information to be instructed; or it can only indicate a part of the information to be instructed, while the other parts of the information to be instructed are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol predefined) arrangement order of various information, thereby reducing the instruction overhead to a certain extent. This application does not limit the specific method of instruction. It is understood that for the sender of the instruction information, the instruction information can be used to indicate the information to be instructed; for the receiver of the instruction information, the instruction information can be used to determine the information to be instructed.

[0127] In this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. In the various embodiments of this application, and the various methods / designs / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various methods / designs / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various methods / designs / implementations within each embodiment can be combined to form new embodiments, methods, or implementations based on their inherent logical relationships. The following descriptions of the embodiments of this application do not constitute a limitation on the scope of protection of this application.

[0128] The sensing method provided in this application can be applied to either a single sensing scenario or a joint sensing scenario. A single sensing scenario refers to a scenario where a single sensing node obtains the required sensing result after sensing. A joint sensing scenario refers to a scenario where multiple sensing nodes sense the same sensing area, and then each sensing node sends its own determined sensing result to a central node, which then fuses the multiple sensing results to reduce sensing uncertainty and improve sensing performance.

[0129] The individual or joint sensing scenarios involved in the embodiments of this application can be single-base sensing scenarios, dual-base sensing scenarios, or hybrid single-base and dual-base sensing scenarios. A dual-base sensing scenario refers to a sensing scenario where the transmitter of the sensing signal and the receiver of the echo signal are not the same communication device. A single-base sensing scenario refers to a sensing scenario where the transmitter of the sensing signal and the receiver of the echo signal belong to the same communication device; a single-base sensing scenario can also be called a self-sensing scenario. A hybrid dual-base and single-base sensing scenario refers to a sensing scenario in which the participating communication devices include both integrated transceiver communication devices and separate transceiver communication devices.

[0130] The dual-base sensing scenario can be understood by referring to Figure 1A. As shown in Figure 1A, this dual-base sensing scenario includes two transmitters, four receivers, and multiple target objects. The two transmitters are transmitter Tx101 and transmitter Tx102; the four receivers are receivers Rx103, Rx104, Rx105, and Rx106, and a central node 107; the target objects can be various types of buildings or other objects. The central node 107 can configure the scanning information of the transmission beam for one or more transmitters. Of course, the central node 107 can also configure the receiving parameters for one or more receivers, and the central node 107 can also summarize the sensing results from multiple receivers.

[0131] The transmitter Tx101 transmits a sensing signal SS1, and the echo signal ES1 generated by SS1 after passing through the building is received by the receiver Rx103.

[0132] Transmitter Tx102 transmits SS2, and SS2 passing through a building generates ES2, which is received by receiver Rx103; transmitter Tx102 transmits SS3, and SS3 passing through a building generates ES3, which is received by receiver Rx104; transmitter Tx102 transmits SS4, and SS4 passing through a building generates ES4, which is received by receiver Rx105; SS4 passing through a building generates ES5, which is received by receiver Rx106.

[0133] It should be noted that SS2, SS3, and SS4 can be sensing signals emitted from the same transmitting beam. However, sensing signals within the range of this transmitting beam will produce echo signals in different directions when encountering buildings at different locations, such as ES2, ES3, ES4, and ES5. Echo signals in different directions can be received by different receiving terminals. Of course, SS2, SS3, and SS4 can also be sensing signals in different beams of the transmitting terminal Tx102.

[0134] In a dual-base sensing scenario, the echo signals generated by sensing signals transmitted from the same transmitter can be received by different receivers. For example, ES2 is received by receiver Rx103, ES3 by receiver Rx104, ES4 by receiver Rx105, and ES5 by receiver Rx106. Echo signals generated by sensing signals transmitted from different transmitters can also be received by the same receiver, such as ES1 and ES2 being received by receiver Rx103. Of course, the echo signals generated by sensing signals transmitted from the same transmitter can also be received by only one receiver. This application does not limit the correspondence between transmitters and receivers; it is related to the number of transmitters or receivers within a certain area. In either case, the receiver can determine the sensing result based on its received echo signals. Alternatively, the receiver can send relevant data from the received echo signals to other communication devices for them to determine the sensing result.

[0135] The single-base sensing scenario can be understood by referring to Figure 1B. As shown in Figure 1B, this single-base sensing scenario may include a central node 107, sensing nodes 108, and multiple target objects. Sensing node 108 includes a transmitter of sensing signals and a receiver of echo signals. The central node 107 can configure the scanning information of the transmitted beam for sensing nodes 108. It should be noted that this single-base sensing scenario may include multiple sensing nodes, not just the one shown in Figure 1B. When there are multiple sensing nodes, the central node 107 can also aggregate the sensing results from multiple sensing nodes.

[0136] When sensing node 108 measures targets in the environment, it can emit one or more beams. The sensing signals SS on the one or more beams can detect targets at different locations. The sensing node then receives the corresponding echo signals ES, and can determine the sensing result based on the ES. Of course, sensing node 108 can also send relevant data from the received echo signals to other communication devices, which can then determine the sensing result.

[0137] In the scenarios described in Figures 1A and 1B above, the receiver, transmitter, and sensing node can all be terminal devices or network devices, and the central node can also be a terminal device or a network device. The receiver, transmitter, sensing node, and central node shown in Figures 1A and 1B are not limited to their specific forms.

[0138] In addition, the hybrid single-base and dual-base sensing scenario refers to a scenario that includes both the sensing process of the transmitter and receiver as shown in Figure 1A, and the sensing process of the sensing node as shown in Figure 1B.

[0139] The terminal equipment and network equipment of this application are described below.

[0140] Terminal equipment: can be a wireless terminal device capable of receiving network device scheduling and instruction information. The wireless terminal device can be a device that provides voice and / or data connectivity to the user, or a handheld device with wireless connectivity, or other processing device connected to a wireless modem.

[0141] Terminal devices can communicate with one or more core networks or the Internet via a radio access network (RAN). Terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones), computers, and data cards. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets, and computers with wireless transceiver capabilities. Wireless terminal equipment can also be called subscriber unit, subscriber station, mobile station (MS), remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, subscriber station (SS), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), etc.

[0142] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices or smart wearable devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets, smart helmets, and smart jewelry for vital sign monitoring.

[0143] Terminal devices can also be drones, robots, terminals in device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in telemedicine or telehealth services, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, etc.

[0144] Furthermore, terminal devices can also be terminal devices in future communication systems beyond the fifth generation (5G) (such as 5G Advanced communication systems) or in future evolved public land mobile networks (PLMNs). For example, 5G Advanced networks can further expand the form and function of 5G communication terminals; 5G Advanced terminals include, but are not limited to, vehicles, cellular network terminals (integrating satellite terminal functions), drones, and Internet of Things (IoT) devices.

[0145] In this embodiment, the terminal device can also obtain artificial intelligence (AI) services provided by the network device. Optionally, the terminal device can also have AI processing capabilities.

[0146] Network equipment: This can be equipment within a wireless network. For example, network equipment can be a RAN node (or device) that connects terminal devices to the wireless network, and can also be called a base station. Currently, some examples of RAN equipment include: base station, evolved NodeB (eNodeB), gNB (gNodeB) in 5G communication systems, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), home base station (e.g., home evolved Node B, or home Node B, HNB), base band unit (BBU), or wireless fidelity (Wi-Fi) access point (AP), etc. Additionally, in a network architecture, network equipment can include central unit (CU) nodes, distributed unit (DU) nodes, or RAN equipment including both CU and DU nodes.

[0147] Optionally, the RAN node can also be a macro base station, micro base station, indoor station, relay node, donor node, or a radio controller in a cloud radio access network (CRAN) scenario. The RAN node can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU).

[0148] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CUs (control plane, CP), CUs (user plane, UP), or radio units (RUs). CUs and DUs can be configured separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), radio heads (RHs), or remote radio heads (RRHs).

[0149] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an open access network (open RAN, O-RAN, or ORAN) system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0150] Communication between access network devices and terminal devices follows a specific protocol layer structure. This protocol layer may include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer may include at least one of the following: radio resource control (RRC) layer, packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, media access control (MAC) layer, or physical (PHY) layer, etc. The user plane protocol layer may include at least one of the following: service data adaptation protocol (SDAP) layer, PDCP layer, RLC layer, MAC layer, or physical layer, etc.

[0151] The correspondence between network elements and their achievable protocol layer functions in the ORAN system can be found in Table 1 below.

[0152] Table 1

[0153] Network devices can be other devices that provide wireless communication functions for terminal devices. The embodiments of this application do not limit the specific technology or form of the network device. For ease of description, the embodiments of this application are not limited.

[0154] Network equipment may also include core network equipment, such as the Mobility Management Entity (MME), Home Subscriber Server (HSS), Serving Gateway (S-GW), Policy and Charging Rules Function (PCRF), and Public Data Network Gateway (PDN gateway or P-GW) in 4th generation (4G) networks; and access and mobility management function (AMF), user plane function (UPF), or session management function (SMF) in 5G networks. Furthermore, this core network equipment may also include other core network equipment in 5G networks and next-generation networks of 5G networks.

[0155] In this embodiment of the application, the network device may also be a network node with AI capabilities, which can provide AI services to terminal devices or other network devices. For example, it may be an AI node, computing node, RAN node with AI capabilities, core network element with AI capabilities, etc. on the network side (access network or core network). The network device may also be a server or virtual machine (VM) in the cloud.

[0156] In this application embodiment, the device for implementing the function of the network device can be the network device itself, or it can be a device capable of supporting the network device in implementing the function, such as a chip system. This device can be disposed within the network device. In the technical solutions provided in this application embodiment, the example of a network device being used to implement the function of the network device is used to describe the technical solutions provided in this application embodiment.

[0157] In the scenarios shown in Figures 1A and 1B above, there are a transmitter and a receiver. The transmitter can independently transmit sensing signals for scanning without considering the receiver's capabilities, and the receiver can independently process echo signals without considering the transmitter's capabilities. Alternatively, the transmitter and receiver can scan together, meaning that when the transmitter transmits a beam, it will consider the receiver's capabilities, and when the receiver processes the echo signal, it will consider the direction of the beam transmitted by the transmitter. Experimental comparisons revealed that the sensing quality obtained by joint scanning of the transmitter and receiver is better than that obtained by independent scanning of the transmitter or receiver, as shown in Figure 2A. When the number of antenna elements of both the transmitter and receiver is 31 and the antenna element spacing is half the carrier wavelength, the beams corresponding to the transmitter, receiver, and joint scanning are shown as lines 201, 202, and 203 in Figure 2A, respectively. As can be seen from Figure 2A, compared with the transmit beam (line 201) and the receive beam (line 202), the beam corresponding to the joint transmission and receiver (line 203) has a narrower main lobe and lower sidelobes. That is, the sensing resolution performance and sidelobe suppression performance, such as the peak to sidelobe ratio (PSLR) and the integrated sidelobe ratio (ISLR), are improved.

[0158] The central node can assist in determining the scanning information of the transmitting beam of the transmitting end or sensing node. Then, the transmitting end or sensing node generates a sensing signal based on the scanning information of the transmitting beam, which can sense the corresponding area. The receiving end or sensing node receives the echo signal of the corresponding area, and then determines the imaging result based on the echo signal and a sensing algorithm. The imaging result can be in the form of a point cloud.

[0159] In this application, the point cloud forms of the imaging results obtained by different sensing algorithms are different. Moreover, within the same sensing algorithm, the imaging results obtained by using different scanning intervals to determine the emission beam are also different. Figure 2B is a schematic diagram of the imaging results obtained by processing the echo signals corresponding to the emission beams determined by different scanning intervals using the digital beam forming (DBF) algorithm. Figure 2C is a schematic diagram of the imaging results obtained by processing the echo signals corresponding to the emission beams determined by different scanning intervals using the compressed sensing (CS) algorithm.

[0160] Figure 2B shows the three images obtained by the DBF algorithm when the scanning intervals of the transmitted beam in the azimuth and elevation directions are 15°, 1.5°, and 0.5°, respectively. These three images were obtained by scanning the same area using the same coordinate system. Therefore, comparing these three images, the main lobe width of the beam enclosed by the ring decreases significantly from the scanning interval [15°, 15°] to [1.5°, 1.5°], indicating an enhanced resolution. It is evident that using a scanning interval [1.5°, 1.5°] to determine the transmitted beam yields higher-quality imaging results compared to using a scanning interval [15°, 15°]. Further reducing the scanning interval from [1.5°, 1.5°] to [0.5°, 0.5°], the difference in imaging results between the two images is not significant. In fact, because the scanning interval decreased from [1.5°, 1.5°] to [0.5°, 0.5°], the scanning overhead in both the azimuth and elevation directions increased by a factor of three, and the overall scanning overhead increased by a factor of nine. This demonstrates that the scanning interval of the transmitted beam directly affects both imaging quality and scanning overhead.

[0161] Figure 2C shows three images corresponding to the imaging results obtained by the CS algorithm when the scanning intervals of the transmitted beam in the azimuth and elevation directions are 15°, 10°, and 4°, respectively. These three images were obtained by scanning the same area using the same coordinate system. Therefore, comparing these three images, the main lobe width of the beam decreases significantly from the scanning interval [15°, 15°] to [10°, 10°], indicating an enhanced resolution. It is evident that using a scanning interval [10°, 10°] to determine the transmitted beam yields higher-quality imaging results compared to using [15°, 15°]. Further reducing the scanning interval from [10°, 10°] to [4°, 4°], a comparison of the two images shows that strong scattering points appear in directions without targets at 4°, indicating an error in the perception results obtained by CS. This is because when the scanning interval is too small, the underdetermined equation problem in the CS algorithm becomes an overdetermined equation problem during the solution process, potentially leading to unstable CS results. Therefore, it can be seen that when using the CS algorithm, the scanning interval of the transmitted beam directly affects the imaging quality and the accuracy of the imaging results.

[0162] As can be seen from the above introduction, although the combined transceiver scanning scenario can achieve a certain perception gain, if the scanning parameters are not selected properly, it will reduce the scanning overhead, or cause incorrect target points to appear in the imaging results.

[0163] For the reasons stated above, embodiments of this application provide a sensing method that can obtain high-quality imaging results with lower scanning overhead. The sensing method provided in the embodiments of this application will be explained below.

[0164] As shown in Figure 3, the sensing method provided in this application embodiment includes:

[0165] S301. The first communication device acquires scanning information of the transmitted beam corresponding to the first region; wherein the scanning information of the transmitted beam includes parameters for indicating the scanning interval, or the scanning information of the transmitted beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region.

[0166] The first communication device can be a transceiver integrated sensing node or a transmitter of sensing signals. The first communication device can be a network device, a terminal device, or a chip in a network device or a chip in a terminal device; this application does not impose any restrictions on its implementation.

[0167] In this application, the scanning information of the transmitted beam corresponding to the first region can be received by the first communication device from the second communication device, or it can be determined by the first communication device. The first region can be a user-selected region, a region selected by the first communication device, or a region selected by the second communication device. The second communication device can be a central node, which can be a node that configures sensing parameters for the transmitting end or receiving end of the sensing signal, and / or a node that summarizes the sensing results. The central node can be a network device or a chip within a network device; of course, the central node can also be other types of devices, such as a terminal device or a chip within a terminal device. The second communication device can also be a core network element, such as a sensing management function (SMF) network element or a location management function (LMF) network element. The second communication device can also be a receiving end of the echo signal corresponding to the sensing signal.

[0168] In this application, the scanning information of the transmitted beam can be used to generate various information about the transmitted beam (first beam). Each first beam scans a sub-region within a first region, and the sub-regions scanned by different first beams do not overlap. The various information may include the scanning range in the azimuth direction, the scanning range in the elevation direction, the scanning interval, or parameters indicating the scanning interval. For example, if a minimum scanning granularity is agreed upon, the scanning interval can be indicated by a multiplier; the product of this multiplier and the minimum scanning granularity is the scanning interval for that sub-region. The scanning interval refers to the angular (or positional) interval between two adjacent transmitted beams. The scanning intervals between different adjacent transmitted beams can be the same or different. The various information may also include the transmission time of each first beam.

[0169] In this application, the first resolution can be selected by the user, and this first resolution satisfies the resolution requirements of the imaging results of the first region. In a perception scenario, resolution refers to the minimum interval in the imaging results that can distinguish adjacent targets, such as distance interval or angular interval, which determines the fineness of the imaging and the target discrimination capability. Resolution requirement refers to the minimum interval that the resolution should meet, such as the minimum distance interval or minimum angular interval required to be met.

[0170] S302. The first communication device transmits a first beam according to the scanning information of the transmitted beam, and the first beam is used to scan a first area.

[0171] The echo signal generated by the first beam scanning the first region is processed by the receiving end using a sensing algorithm to obtain the imaging result. This receiving end can be a first communication device or other communication devices.

[0172] The solution provided in this application, because the first range is determined by the first resolution, ensures that the upper limit of the first range satisfies the sensing gain of the sensing imaging, and that a better sensing quality imaging result can be obtained by using the upper limit of the first range. The lower limit of the first range avoids infinitely shrinking the scanning interval, effectively reducing scanning overhead. Therefore, the solution provided in this application, which determines the scanning information of the transmitted beam for beam scanning based on the scanning interval determined by the first range, can obtain a high-quality sensing imaging result while effectively reducing scanning overhead.

[0173] Optionally, the first resolution is no greater than the second resolution, which is a resolution determined by the transmitting capability of the transmitting end and the receiving capability of the receiving end.

[0174] In this embodiment, the second resolution can be a theoretical value determined based on the transmitting capability of the transmitter and the receiving capability of the receiver. The first resolution is not greater than the second resolution, meaning the first resolution is less than or equal to the second resolution. This maximizes the utilization of the transmitting and receiving capabilities of both ends, improving resource utilization.

[0175] In some scenarios, the above-mentioned S301 may be determined by the second communication device before being sent to the first communication device. The interaction process between the first and second communication devices is described below in different scenarios.

[0176] As shown in Figure 4, taking a single-base sensing scenario where the first communication device is a sensing node and the second communication device is a central node as an example, the sensing method provided in this application embodiment includes:

[0177] S401. The first communication device sends a request for joint sensing imaging service to the second communication device. Correspondingly, the second communication device receives the request for joint sensing imaging service.

[0178] This transceiver integrated sensing imaging service request is used to request the central node to assist the integrated transceiver sensing node in configuring the scanning information of the transmission beam.

[0179] S402. The first communication device sends capability information to the second communication device. Correspondingly, the second communication device receives the capability information.

[0180] In this application, the capability information to be transmitted may include information such as the number, location, and direction of antenna elements. The antenna elements may include the number and direction of antenna elements used for transmitting signals, or the number and direction of antenna elements used for receiving signals. The capability information may also include information such as time-frequency resources, such as bandwidth, carrier wave, and time slot.

[0181] S403. The first communication device sends the imaging results of a large area to the second communication device. Correspondingly, the second communication device receives the imaging results of the large area.

[0182] This large area can be the first region or a region that includes the first region. The imaging result of this large area can be understood as the imaging result of this area before the scanning information of the transmitted beam is configured, and the imaging quality is relatively low.

[0183] S404. The second communication device determines the scanning information of the transmission beam of the first area based on the imaging results of the large area, the configuration of the transmitting and receiving antennas, and the required resolution.

[0184] This process may include:

[0185] S4041. Based on the imaging results of the large area, select one or more second areas to be scanned.

[0186] S4042. Determine the second resolution of the second region based on the transmitting capability of the transmitting end and the receiving capability of the receiving end.

[0187] The second resolution can include the second resolution in the pitch direction and the second resolution in the azimuth direction. The second resolution in these two directions can be determined by the following two relationships.

[0188] in, The second resolution represents the pitch angle direction, α represents a constant, and λ represents the wavelength. This indicates the number of antenna elements at the transmitting end in the elevation direction. This indicates the spacing between the two antenna elements at the transmitting end in the elevation direction. This indicates the aperture length of the antenna array at the transmitting end in the elevation direction; This indicates the number of antenna elements at the receiver in the elevation direction. This indicates the spacing between the two antenna elements at the receiver in the elevation direction. This indicates the aperture length of the antenna array at the receiving end in the elevation direction.

[0189] in, The second resolution represents the azimuth direction, α represents a constant, and λ represents the wavelength. This indicates the number of antenna elements at the transmitting end in the azimuth direction. This indicates the spacing between the two antenna elements at the transmitting end in the azimuth direction. This indicates the aperture length of the antenna array at the transmitting end in the azimuth direction; This indicates the number of antenna elements at the receiver in the azimuth direction. This indicates the spacing between the two antenna elements at the receiver in the azimuth direction. This indicates the aperture length of the antenna array at the receiving end in the azimuth direction.

[0190] S4043. Determine the first resolution of the second region based on the second resolution of the second region.

[0191] To make the best use of the transmitting end's transmitting capability and the receiving end's receiving capability, the first resolution can be determined according to the following relationship.

[0192] Among them, g θ This represents the first resolution in the pitch direction. This indicates the first resolution in the azimuth direction. Additionally, g... θ and The resolution requirements of the imaging results in the first region must also be met.

[0193] S4044. Determine the first range corresponding to the second region based on the first resolution.

[0194] In this embodiment, the first range is associated with a sensing algorithm, which includes a solution-based sensing algorithm or a matching-based sensing algorithm. A solution-based sensing algorithm refers to a sensing algorithm that determines the imaging result by solving a solution, such as a compressed sensing algorithm, which determines the imaging result by calculating a solution space. A matching-based sensing algorithm refers to a sensing algorithm that determines the imaging result by matched filtering, such as DBF or Fast Fourier Transform (FFT), which determines the imaging result by performing matched filtering on the echo signal. Because the first range is associated with a sensing algorithm, the accuracy of the first range used by different sensing algorithms can be improved, thereby improving the sensing quality of the imaging result.

[0195] The perception algorithm can be a solution-based perception algorithm. The first range is determined by the first resolution, the receiving capability of the receiver, and the sparsity of the second region. The sparsity of the second region is used to characterize the number of targets in the second region. The second region is contained within the first region.

[0196] In this embodiment, the relationship between the second region and the first region, as well as the sparsity, can be understood by referring to Figure 5. As shown in Figure 5, the first region includes four second regions: region 1, region 2, region 3, and region 4. Region 1 contains two targets and has a sparsity of 2; region 2 contains one target and has a sparsity of 1; region 3 contains three targets and has a sparsity of 3; and region 4 contains two targets and has a sparsity of 2. It should be noted that the sparsity of the multiple second regions illustrated in Figure 5 is not all the same. In fact, the sparsity of the multiple second regions included in the first region can also be all the same. It should also be noted that the first region can be composed of multiple second regions, which together constitute the entire set of the first region. Alternatively, the multiple second regions can be selected regions from the first region, which are subsets of the first region. This application does not limit this.

[0197] In this embodiment of the application, the first range of the second region includes a range in the azimuth direction and a range in the elevation direction; the range in the elevation direction can be represented as... The range in the azimuth direction can be represented as: Among them, g θ The first resolution in the pitch direction, This is the first resolution in the azimuth direction. This refers to the number of receiving antenna elements in the elevation direction. Let be the number of receiving antenna elements in the azimuth direction, k be the sparsity of the second region, and β be a constant.

[0198] In this embodiment, the lower limits of the first range in both the azimuth and elevation directions are related to the number of receiver elements at the receiving end. This allows us to determine the upper limit of the sensing capability, thus facilitating better sensing performance. The upper limit of the first range is related to the number and sparsity of the receiver elements at the receiving end, which allows us to balance scanning overhead while achieving good sensing performance.

[0199] The above describes the case where the perception algorithm is a solution-based perception algorithm. If the perception algorithm is a matching-based perception algorithm, then the first range is determined by the product of the second resolution and the coefficients, and the range of the coefficients determines the first range; the relationship between the size of the second region and the first range can be expressed as:

[0200] and

[0201] Where c1 represents the lower limit of the coefficient and c2 represents the upper limit of the coefficient. If the range of the coefficient is (1 / 3, 1), then c1 is 1 / 3 and c2 is 1. Of course, the range of the coefficient in this application can be set according to the requirements and is not limited to (1 / 3, 1) in the example here. The second resolution indicates the direction of the pitch angle; d represents the second resolution in the azimuth direction. θ This represents the dimension of the second region in the pitch direction. This represents the size of the second region in the azimuth direction.

[0202] In this application, size refers to the angular range.

[0203] S4045. Determine the size of the corresponding second region based on the first range.

[0204] In this embodiment of the application, the second region based on the solved perception algorithm includes the size in the pitch direction and the size in the azimuth direction; if d θ The dimension is in the pitch direction. Let d be the dimension in the azimuth direction. θ , The relationship with the first range mentioned above can be expressed as follows:

[0205] From the relationship between the above dimensions and the first range, it can be seen that dimension d can be selected from the first range. θ and

[0206] S4046. Determine the scanning information of the transmitted beam corresponding to the first region based on the size of the second region.

[0207] In this application, if each second region has the same size, and the second regions are adjacent and do not overlap, then the scanning interval between adjacent transmitted beams is the size of the second region, i.e.: d θ ,

[0208] If the dimensions of each second region are different, but the second regions are adjacent and do not overlap, the scanning interval of the beams corresponding to the two adjacent second regions can be determined by the dimensions of the two adjacent second regions, such as: 1 / 2(d θ1 +d θ2 );

[0209] The scanning information of the transmitted beam corresponding to the first region can be represented in various ways, such as:

[0210] 1. Specify the first region, scan interval, and scan order: and [t1,t2,…,t] mn This applies when the dimensions of each second region are equal.

[0211] in, This indicates the lower boundary of the first region in both the elevation and azimuth directions. This indicates the upper boundary of the first region in both the elevation and azimuth directions. This indicates the scanning interval of the first region in the elevation and azimuth directions; [t1, t2, ..., t mn [] indicates the scanning order in time, such as: in t mn The center of the time beam can be represented as:

[0212] 2. Specify the scan angle and time set in the second region: [θ1, θ2, ..., θ n ], and [t1,t2,…,t] mn ].

[0213] Where, [θ1,θ2,…,θ n ] represents the n scanning angles from 1 to n in the pitch direction of the second region; The second region has m scanning angles from 1 to m in the azimuth direction; [t1, t2, ..., t mn ] represents the mn scan times of a combination of n scan angles in the pitch direction and m scan angles in the azimuth direction.

[0214] 3. Specify the scan angle and time set in the second region: [θ1, θ2, ..., θ k ], and [t1,t2,…,t] k ].

[0215] Where, [θ1,θ2,…,θ k ] represents the k scanning angles from 1 to k in the pitch direction of the second region; This represents the k scanning angles from 1 to k in the azimuth direction of the second region; [t1, t2, ..., t k [] represents the k scan times that are scanned together in the pitch and azimuth directions.

[0216] Of course, the scanning information of the corresponding transmission beam in the first region can also be given in other forms, which are not limited in this application.

[0217] S405. The second communication device sends scanning information of the corresponding transmission beam of the first region to the first communication device. Correspondingly, the first communication device receives the scanning information of the corresponding transmission beam of the first region.

[0218] S406. The first communication device transmits a first beam based on the scanning information of the transmission beam of the first region, the first beam being used to scan the first region.

[0219] In this application, there can be multiple first beams, and these multiple first beams can be transmitted in a time-division multiplexing manner. The first communication device can first transmit a first beam for a second region, and after scanning the second region is completed, it can then scan the next second region. It is also possible to scan multiple second regions simultaneously, and this application does not limit this.

[0220] S407. The first communication device obtains the imaging result of the first region based on the echo signal of the first region.

[0221] S408. The first communication device sends the imaging results of the first area to the second communication device. Correspondingly, the second communication device receives the imaging results of the first area.

[0222] S409. The second communication device determines whether to proceed with the next round of imaging sensing based on the imaging results of the first area.

[0223] If yes, then based on the second region selection of the second communication device in this round, the process from S404 to S409 will be re-executed; otherwise, S410 will be executed.

[0224] S410. End perception.

[0225] If multiple sensing nodes work together to sense, the sensing results can be fused after the sensing ends.

[0226] As can be seen from the above sensing process, in the sensing scheme provided by this application, the first range is determined by the first resolution. Thus, the upper limit of the first range can satisfy the sensing gain of the sensing image, and a better sensing quality imaging result can be obtained through the upper limit of the first range. The lower limit of the first range avoids infinitely shrinking the scanning interval, effectively reducing scanning overhead. Therefore, in the scheme provided by this application, the second communication device determines the scanning information of the transmitted beam based on the scanning interval determined by the first range and provides it to the first communication device for beam scanning. This allows the first beam transmitted by the first communication device to obtain both a high-quality sensing image result and effectively reduce scanning overhead.

[0227] In the scheme described in Figure 4 above, if the central node stores the imaging results of a large area, then S403 above need not be executed.

[0228] As shown in Figure 6, in a single-base sensing scenario, taking the first communication device as sensing node 1, the second communication device as the central node, and a third communication device, namely sensing node 2, as an example, another sensing method provided by the embodiments of this application includes:

[0229] S601. The first communication device sends a request for joint sensing imaging service to the second communication device. Correspondingly, the second communication device receives the request for joint sensing imaging service.

[0230] S602. The first communication device sends capability information to the second communication device. Correspondingly, the second communication device receives the capability information.

[0231] For a better understanding of S601 and S602, please refer to the introductions in the previous sections on S401 and S402.

[0232] S603. The second communication device sends an auxiliary sensing request to the third communication device. Correspondingly, the third communication device receives the auxiliary sensing request.

[0233] The assisted perception request includes information about the second region. This information can be the upper and lower boundary information of the second region in the pitch direction, or the upper and lower boundary information in the azimuth direction. Of course, the information about the second region can also be represented in other forms.

[0234] S604. The third communication device performs auxiliary measurements to determine the sparsity of each second region.

[0235] The sparsity representation of each second region can be: [k1, k2, ..., k n ], where 1 to n are the numbers of the second region, k i Let represent the sparsity of the i-th second region, which is the number of target points within that second region.

[0236] S605. The third communication device sends the sparsity of each second region to the second communication device. Correspondingly, the second communication device receives the sparsity of each second region.

[0237] S606. The second communication device determines the scanning information of the transmit beam of the first region based on the sparsity of each second region, the configuration of the transmit and receive antennas, and the required resolution.

[0238] The process of S606 can be understood by referring to the relevant introduction in section S404.

[0239] The process from S607 to S612 can be understood by referring to the introduction in sections S405 to S410 above.

[0240] The sensing scheme provided in this application embodiment, compared to the sensing scheme shown in Figure 4 above, involves the central node coordinating sensing node 2 to assist sensing node 1 in performing high-quality imaging. This eliminates the need for sensing node 1 to send large-area imaging results to the central node, saving air interface overhead in addition to the advantages described in the embodiment corresponding to Figure 4.

[0241] In another possible solution, after the second communication device receives the sparsity of each second region, it can send the sparsity of the second region to the first communication device, which can then perform the steps of S606 described above.

[0242] The above Figures 4 and 6 illustrate the single-base sensing scenario. In the dual-base sensing scenario, the sensing process of this application can be understood by referring to Figure 7.

[0243] As shown in Figure 7, in a dual-base sensing scenario, taking the first communication device as the transmitting node, the second communication device as the central node, and a receiving node as an example, another sensing method provided by the embodiments of this application includes:

[0244] S701. The first communication device sends a request for joint sensing imaging service to the second communication device. Correspondingly, the second communication device receives the request for joint sensing imaging service.

[0245] The joint sensing imaging service request is used to request the central node to assist the transmitting and receiving nodes in configuring the scanning information of the transmitting beam.

[0246] S702. The first communication device and the receiving node send capability information to the second communication device. Correspondingly, the second communication device receives the capability information.

[0247] The capability information transmitted by the first communication device includes the number and direction of the antenna array of the transmitting node, as well as information on the time and frequency resources of the transmitting node, such as bandwidth, carrier, and time slot.

[0248] The receiving node transmits capability information such as the number and direction of its antenna arrays, as well as time and frequency resources such as bandwidth, carrier, and time slots.

[0249] S703. The second communication device determines the scanning information of the transmission beam of the first area based on the imaging results of the large area, the configuration of the transmitting and receiving antennas, and the required resolution.

[0250] The imaging results for this large area can be either stored by the central node or sent to the central node by the receiving node.

[0251] For a better understanding of S703, please refer to the introduction in section S404.

[0252] S704. The second communication device sends scanning information of the transmission beam of the first area to the first communication device. Correspondingly, the first communication device receives the scanning information of the transmission beam of the first area.

[0253] S705. The second communication device sends scanning information of the transmit beam of the first area to the receiving node. Correspondingly, the receiving node receives the scanning information of the transmit beam of the first area.

[0254] The receiving node can determine the angle for receiving the echo signal based on the scanning information of the transmitted beam in the first region.

[0255] S706. The first communication device transmits a first beam based on the scanning information of the transmission beam of the first region, the first beam being used to scan the first region.

[0256] S707. The receiving node obtains the imaging result of the first region based on the echo signal of the first region.

[0257] S708. The receiving node sends the imaging results of the first area to the second communication device. Correspondingly, the second communication device receives the imaging results of the first area.

[0258] S709. The second communication device determines whether to proceed with the next round of imaging sensing based on the imaging results of the first area.

[0259] If yes, then based on the second region selection of the second communication device in this round, the process from S704 to S709 is re-executed; otherwise, S710 is executed.

[0260] S710. End of perception.

[0261] If multiple sensing nodes work together to sense, the sensing results can be fused after the sensing ends.

[0262] As shown in Figure 8, in a dual-base sensing scenario, with the first communication device as the transmitting node and the second communication device as the receiving node, another sensing method provided by the embodiments of this application includes:

[0263] S801. The first communication device sends a request for joint sensing imaging service to the second communication device. Correspondingly, the second communication device receives the request for joint sensing imaging service.

[0264] The transceiver joint sensing imaging service request is used to request the receiving node to assist in configuring the scanning information of the transmit beam.

[0265] S802. The first communication device sends capability information to the second communication device. Correspondingly, the second communication device receives the capability information.

[0266] The capability information transmitted by the first communication device includes the number and direction of the antenna array of the transmitting node, as well as information on the time and frequency resources of the transmitting node, such as bandwidth, carrier, and time slot.

[0267] S803. The second communication device determines the scanning information of the transmission beam of the first area based on the imaging results of the large area, the configuration of the transmitting and receiving antennas, and the required resolution.

[0268] The imaging results for this large area can be those already stored by the receiving node.

[0269] S804. The second communication device sends scanning information of the corresponding transmission beam of the first region to the first communication device. Correspondingly, the first communication device receives the scanning information of the corresponding transmission beam of the first region.

[0270] S805. The first communication device transmits a first beam based on the scanning information of the transmission beam in the first region.

[0271] S806. The second communication device obtains the imaging result of the first region based on the echo signal of the first region.

[0272] The sensing process provided in this application embodiment does not require the participation of a central node. The transmitting and receiving nodes can complete the sensing process on their own, obtaining high-quality imaging results with low scanning overhead.

[0273] The communication system and communication method in the embodiments of this application have been described above. The communication device provided in the embodiments of this application will be described below.

[0274] Referring to Figure 9, this application embodiment provides a communication device 900. This communication device 900 can implement the functions of the first or second communication device in the above method embodiments, and therefore also achieves the beneficial effects of the above method embodiments. In this application embodiment, the communication device 900 can be the first or second communication device, or it can be an integrated circuit or component within the first or second communication device, such as a chip, baseband chip, modem chip, SoC chip (e.g., an SoC chip containing a modem core), SIP chip, communication module, chip system, processor, etc.

[0275] It should be noted that the transceiver unit 902 may include a transmitting unit and a receiving unit, which are used to perform transmitting and receiving respectively.

[0276] In one possible implementation, when the device 900 is used to execute the method performed by the first communication device in FIG3 and related embodiments, the device 900 includes a processing unit 901 and a transceiver unit 902. The transceiver unit 902 is used to receive scanning information of a transmission beam corresponding to the first region. The scanning information of the transmission beam includes parameters for indicating the scanning interval, or the scanning information of the transmission beam is determined by the scanning interval. The scanning interval is determined by a first range, and the first range is determined by a first resolution, which satisfies the resolution requirements of the imaging result of the first region. The processing unit 901 can independently determine the scanning information of the transmission beam corresponding to the first region. The transceiver unit 902 is also used to transmit a first beam according to the scanning information of the transmission beam, the first beam being used to scan the first region.

[0277] In one possible implementation, when the device 900 is used to execute the method performed by the second communication device in FIG4 and related embodiments, the device 900 includes a processing unit 901 and a transceiver unit 902; the processing unit 901 is used to acquire scanning information of the transmission beam corresponding to the first region; wherein the scanning information of the transmission beam includes parameters for indicating the scanning interval, or the scanning information of the transmission beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region; the transceiver unit 902 is used to send the scanning information of the transmission beam corresponding to the first region to the first communication device; wherein the scanning information of the transmission beam is used by the first communication device to transmit a first beam, and the first beam is used to scan the first region.

[0278] In one possible design, when the communication device 900 is a terminal device or a communication module within a terminal, the function of the processing unit 901 can be implemented by one or more processors. Specifically, the processor may include a modem chip, a SoC chip (such as a SoC chip containing a modem core), or a SIP chip. The function of the transceiver unit 902 can be implemented by transceiver circuitry.

[0279] In one possible design, when the communication device 900 is a circuit or chip responsible for communication functions in a terminal device, such as a modem chip, a SoC chip, or a SoC chip or SIP chip containing a modem core, the function of the processing unit 901 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the transceiver unit 902 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.

[0280] It should be noted that the information execution process of the unit of the above-mentioned communication device 900 can be specifically described in the method embodiment shown above in this application, and will not be repeated here.

[0281] Please refer to Figure 10, which is another schematic structural diagram of the communication device 1000 provided in this application. The communication device 1000 includes a logic circuit 1001 and an input / output interface 1002. The communication device 1000 can be a chip or an integrated circuit.

[0282] In Figure 9, the transceiver unit 902 can be a communication interface, which can be the input / output interface 1002 in Figure 10. The input / output interface 1002 can include an input interface and an output interface. Alternatively, the communication interface can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0283] In one possible implementation, when the device 1000 is used to execute the method performed by the first communication device in FIG3 and related embodiments, the input / output interface 1002 is used to receive scanning information of the transmitted beam corresponding to the first region. The scanning information of the transmitted beam includes parameters for indicating the scanning interval, or the scanning information of the transmitted beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region. Alternatively, the logic circuit 1001 may be used to determine the scanning information of the transmitted beam corresponding to the first region. The scanning information of the transmitted beam includes parameters for indicating the scanning interval, or the scanning information of the transmitted beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region. The input / output interface 1002 is also used to transmit a first beam according to the scanning information of the transmitted beam, and the first beam is used to scan the first region.

[0284] In one possible implementation, when the device 1000 is used to execute the method performed by the second communication device in FIG4 and related embodiments, the logic circuit 1001 is used to acquire scanning information of the transmission beam corresponding to the first region; wherein, the scanning information of the transmission beam includes parameters for indicating the scanning interval, or, the scanning information of the transmission beam is determined by the scanning interval; wherein, the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region. The input / output interface 1002 is used to send the scanning information of the transmission beam corresponding to the first region to the first communication device; wherein, the scanning information of the transmission beam is used by the first communication device to transmit a first beam, and the first beam is used to scan the first region.

[0285] The logic circuit 1001 and the input / output interface 1002 can also perform other steps performed by the first or second communication device in any embodiment and achieve corresponding beneficial effects, which will not be elaborated here.

[0286] In one possible implementation, the processing unit 901 shown in FIG9 can be the logic circuit 1001 in FIG10.

[0287] Optionally, the logic circuit 1001 can be a processing device, the functions of which can be partially or entirely implemented in software.

[0288] Optionally, the processing apparatus may include a memory and a processor, wherein the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory to perform the corresponding processing and / or steps in any of the method embodiments.

[0289] Optionally, the processing device may consist of only a processor. A memory for storing computer programs is located outside the processing device, and the processor is connected to the memory via circuitry / wires to read and execute the computer programs stored in the memory. The memory and processor may be integrated together or physically independent of each other.

[0290] Optionally, the processing device may be one or more chips, or one or more integrated circuits. For example, the processing device may be one or more field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), system-on-chips (SoCs), central processing units (CPUs), network processors (NPs), digital signal processors (DSPs), microcontroller units (MCUs), programmable logic controllers (PLDs), or other integrated chips, or any combination of the above chips or processors.

[0291] Please refer to Figure 11, which shows the communication device 1100 involved in the above embodiments provided in the embodiments of this application. Specifically, the communication device 1100 can be the communication device as a terminal device in the above embodiments. The example shown in Figure 11 is that the terminal device is implemented through the terminal device (or the components in the terminal device).

[0292] The present invention provides a possible logical structure diagram of the communication device 1100, which may include, but is not limited to, at least one processor 1101 and a communication port 1102.

[0293] In Figure 9, the transceiver unit 902 can be a communication interface, which can be the communication port 1102 in Figure 11. The communication port 1102 can include an input interface and an output interface. Alternatively, the communication port 1102 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0294] Further optionally, the device may also include at least one of a memory 1103 and a bus 1104. In the embodiments of this application, the at least one processor 1101 is used to control the operation of the communication device 1100.

[0295] Furthermore, the processor 1101 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, etc. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0296] It should be noted that the communication device 1100 shown in Figure 11 can be used to implement the steps implemented by the terminal device in the aforementioned method embodiment and achieve the corresponding technical effects of the terminal device. The specific implementation of the terminal device shown in Figure 11 can be referred to the description of the first communication device or the second communication device in the aforementioned method embodiment, and will not be repeated here.

[0297] Please refer to Figure 12, which is a schematic diagram of the structure of the communication device 1200 involved in the above embodiments provided in the embodiments of this application. The communication device 1200 can specifically be a communication device as a network device in the above embodiments. The example shown in Figure 12 is that the network device is implemented through a network device (or a component in the network device). The structure of the communication device can refer to the structure shown in Figure 12.

[0298] The communication device 1200 includes at least one processor 1211 and at least one network interface 1214. Optionally, the communication device further includes at least one memory 1212, at least one transceiver 1213, and one or more antennas 1215. The processor 1211, memory 1212, transceiver 1213, and network interface 1214 are connected, for example, via a bus. In this embodiment, the connection may include various interfaces, transmission lines, or buses, etc., and this embodiment is not limited thereto. The antenna 1215 is connected to the transceiver 1213. The network interface 1214 enables the communication device to communicate with other communication devices through a communication link. For example, the network interface 1214 may include a network interface between the communication device and core network equipment, such as an S1 interface; the network interface may also include a network interface between the communication device and other communication devices (e.g., other network devices or core network equipment), such as an X2 or Xn interface.

[0299] In Figure 9, the transceiver unit 902 can be a communication interface, which can be the network interface 1214 in Figure 12. The network interface 1214 can include an input interface and an output interface. Alternatively, the network interface 1214 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0300] The processor 1211 is primarily used to process communication protocols and communication data, control the entire communication device, execute software programs, and process data from these programs, for example, to support the actions described in the embodiments of the communication device. The communication device may include a baseband processor and a central processing unit (CPU). The baseband processor is primarily used to process communication protocols and communication data, while the CPU is primarily used to control the entire terminal device, execute software programs, and process data from these programs. The processor 1211 in Figure 12 can integrate the functions of both a baseband processor and a CPU. Those skilled in the art will understand that the baseband processor and CPU can also be independent processors interconnected via technologies such as buses. Those skilled in the art will understand that a terminal device may include multiple baseband processors to adapt to different network standards, and multiple CPUs to enhance its processing capabilities. Various components of the terminal device can be connected via various buses. The baseband processor can also be described as a baseband processing circuit or a baseband processing chip. The CPU can also be described as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored in memory as a software program, which is then executed by the processor to implement the baseband processing function.

[0301] The memory is primarily used to store software programs and data. The memory 1212 can exist independently or be connected to the processor 1211. Optionally, the memory 1212 can be integrated with the processor 1211, for example, integrated within a single chip. The memory 1212 can store program code that executes the technical solutions of the embodiments of this application, and its execution is controlled by the processor 1211. The various types of computer program code being executed can also be considered as drivers for the processor 1211.

[0302] Figure 12 shows only one memory and one processor. In actual terminal devices, there may be multiple processors and multiple memories. Memory can also be called storage medium or storage device, etc. Memory can be a storage element on the same chip as the processor, i.e., an on-chip storage element, or it can be a separate storage element; this application does not limit this.

[0303] Transceiver 1213 can be used to support the reception or transmission of radio frequency signals between a communication device and a terminal. Transceiver 1213 can be connected to antenna 1215. Transceiver 1213 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1215 can receive radio frequency signals. The receiver Rx of transceiver 1213 is used to receive the radio frequency signals from the antennas, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to processor 1211 so that processor 1211 can perform further processing on the digital baseband signals or digital intermediate frequency signals, such as demodulation and decoding. In addition, the transmitter Tx in transceiver 1213 is also used to receive the modulated digital baseband signals or digital intermediate frequency signals from processor 1211, convert the modulated digital baseband signals or digital intermediate frequency signals into radio frequency signals, and transmit the radio frequency signals through one or more antennas 1215. Specifically, the receiver Rx can selectively perform one or more stages of downmixing and analog-to-digital conversion on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency (IF) signal. The order of these downmixing and IF conversion processes is adjustable. The transmitter Tx can selectively perform one or more stages of upmixing and digital-to-analog conversion on the modulated digital baseband signal or digital IF signal to obtain a radio frequency signal. The order of these upmixing and IF conversion processes is also adjustable. The digital baseband signal and the digital IF signal can be collectively referred to as digital signals.

[0304] The transceiver 1213 can also be called a transceiver unit, transceiver, transceiver device, etc. Optionally, the device in the transceiver unit that performs the receiving function can be regarded as the receiving unit, and the device in the transceiver unit that performs the transmitting function can be regarded as the transmitting unit. That is, the transceiver unit includes a receiving unit and a transmitting unit. The receiving unit can also be called a receiver, input port, receiving circuit, etc., and the transmitting unit can be called a transmitter, transmitter, or transmitting circuit, etc.

[0305] It should be noted that the communication device 1200 shown in Figure 12 can be used to implement the steps implemented by the network device in the aforementioned method embodiment and achieve the corresponding technical effects of the network device. The specific implementation of the communication device 1200 shown in Figure 12 can be referred to the description of the first communication device or the second communication device in the aforementioned method embodiment, and will not be repeated here.

[0306] Please refer to Figure 13, which is a schematic diagram of the structure of the communication device involved in the above embodiments provided in the embodiments of this application.

[0307] It is understood that the communication device 1300 includes, for example, modules, units, elements, circuits, or interfaces, which are appropriately configured together to execute the technical solutions provided in this application. The communication device 1300 may be the terminal device or network device described above, or a component (e.g., a chip) within these devices, used to implement the methods described in the following method embodiments. The communication device 1300 includes one or more processors 1301. The processor 1301 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (e.g., RAN node, terminal, or chip), execute software programs, and process data from the software programs.

[0308] Optionally, in one design, processor 1301 may include program 1303 (sometimes also referred to as code or instructions), which may be executed on processor 1301 to cause communication device 1300 to perform the methods described in the following embodiments. In yet another possible design, communication device 1300 includes circuitry (not shown in FIG13).

[0309] Optionally, the communication device 1300 may include one or more memories 1302 storing a program 1304 (sometimes referred to as code or instructions), which can be run on the processor 1301 to cause the communication device 1300 to perform the methods described in the above method embodiments.

[0310] Optionally, the processor 1301 and / or memory 1302 may include AI modules 1307 and 1308, which are used to implement AI-related functions. The AI ​​modules can be implemented through software, hardware, or a combination of both. For example, the AI ​​module may include a radio intelligence control (RIC) module. For example, the AI ​​module may be a near real-time RIC or a non-real-time RIC.

[0311] Optionally, the processor 1301 and / or memory 1302 may also store data. The processor and memory may be configured separately or integrated together.

[0312] Optionally, the communication device 1300 may further include a transceiver 1305 and / or an antenna 1306. The processor 1301, sometimes referred to as a processing unit, controls the communication device (e.g., a RAN node or terminal). The transceiver 1305, sometimes referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, is used to realize the transmission and reception functions of the communication device through the antenna 1306.

[0313] In Figure 9, the processing unit 901 can be a processor 1301. The transceiver unit 902 shown in Figure 9 can be a communication interface, which can be the transceiver 1305 in Figure 13. The transceiver 1305 can include an input interface and an output interface. Alternatively, the transceiver 1305 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0314] This application also provides a computer-readable storage medium for storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor performs the method described in the possible implementations of the first or second communication device in the foregoing embodiments.

[0315] This application also provides a computer program product (or computer program) that, when executed by a processor, executes the method described above for the possible implementation of the first or second communication device.

[0316] This application also provides a chip system including at least one processor for supporting a communication device in implementing the functions involved in the possible implementations of the communication device described above. Optionally, the chip system further includes an interface circuit that provides program instructions and / or data to the at least one processor. In one possible design, the chip system may also include a memory for storing the program instructions and data necessary for the communication device. The chip system may be composed of chips or may include chips and other discrete devices, wherein the communication device may specifically be the first communication device or the second communication device in the aforementioned method embodiments.

[0317] This application also provides a communication system, which includes the first communication device in any of the above embodiments.

[0318] Optionally, the communication system may also include a second communication device.

[0319] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only 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 system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms. Whether a function is implemented in hardware or software 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.

[0320] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0321] 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. 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 computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) 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, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

Claims

1. A perception method, comprising: include: Acquire scanning information of the transmitted beam corresponding to the first region; wherein the scanning information of the transmitted beam includes parameters for indicating the scanning interval, or the scanning information of the transmitted beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region. A first beam is emitted according to the scanning information of the emitted beam, and the first beam is used to scan the first region.

2. A perception method, comprising: include: Acquire scanning information of the transmitted beam corresponding to the first region; wherein the scanning information of the transmitted beam includes parameters for indicating the scanning interval, or the scanning information of the transmitted beam is determined by the scanning interval; wherein the scanning interval is determined by a first range, the first range is determined by a first resolution, and the first resolution satisfies the resolution requirements of the imaging result of the first region. The scanning information of the transmission beam corresponding to the first region is sent to the first communication device; wherein the scanning information of the transmission beam is used by the first communication device to transmit a first beam, and the first beam is used to scan the first region.

3. The method according to claim 1 or 2, characterized in that, The first resolution is no greater than the second resolution, which is a resolution determined by the transmitting capability of the transmitting end and the receiving capability of the receiving end.

4. The method of claim 3, wherein, The first range is associated with a perception algorithm, which includes a solution-based perception algorithm or a matching-based perception algorithm.

5. The method of claim 4, wherein, The perception algorithm is the solution-based perception algorithm. The first range is determined by the first resolution, the receiving capability of the receiving end, and the sparsity of the second region. The sparsity of the second region is used to characterize the number of targets in the second region. The second region is contained within the first region.

6. The method of claim 5, wherein, The first range includes a range in the azimuth direction and a range in the pitch direction, and the second region includes a dimension in the pitch direction and a dimension in the azimuth direction; wherein, the relationship between the range in the pitch direction and the dimension in the pitch direction is as follows: The relationship between the range in the azimuth direction and the size in the azimuth direction is: Where, d θ The dimension is in the pitch direction. Let g be the dimension in the azimuth direction. θ The first resolution in the pitch direction, This is the first resolution in the azimuth direction. The number of receiving elements in the pitch direction. denoted by , k represents the number of receiver elements in the azimuth direction, k represents the sparsity of the second region, and β is a constant.

7. The method of claim 4, wherein, The perception algorithm is the matching-based perception algorithm, and the first range is determined by the product of the second resolution and the coefficient, wherein the coefficient ranges from (1 / 3, 1).

8. The method according to claim 5 or 6, characterized in that, The step of acquiring the scanning information of the transmitted beam corresponding to the first region includes: The first communication device receives scanning information of the transmit beam corresponding to the first region from the second communication device; wherein the scanning information of the transmit beam corresponding to the first region is determined by the size of the second region, wherein the size of each second region is determined by the second communication device based on the transmit capability of the transmitting end and the receive capability of the receiving end and the sparsity of each second region.

9. The method according to claim 5 or 6, characterized in that, The step of acquiring the scanning information of the transmitted beam corresponding to the first region includes: The size of each second region is determined based on the transmission capability of the transmitting end and the reception capability of the receiving end, as well as the sparsity of each second region; Based on the size of each second region, the scanning information of the transmitted beam corresponding to the first region is determined.

10. The method of claim 9, wherein, The step of determining the scanning information of the transmitted beam corresponding to the first region based on the size of each second region includes: The second resolution is determined based on the transmission capability of the transmitting end and the reception capability of the receiving end, and the second resolution is used to determine the first resolution; The first range corresponding to the second region is determined based on the first resolution, and the first range of the second region is used to determine the size of the second region; Based on the size of the second region, the scanning interval of adjacent beams is determined, and the scanning interval of adjacent beams is used to determine the scanning information of the transmitted beam corresponding to the first region.

11. A communications device, characterized by include: Includes a module for performing the method as described in any one of claims 1 to 10.

12. A communications device, characterized by Includes at least one processor coupled to memory; The memory is used to store programs or instructions; The at least one processor is used to execute the program or instructions to cause the apparatus to implement the method as described in any one of claims 1 to 10.

13. A chip device, characterized by Includes a processor for invoking a program stored in memory, such that the processor performs the method as described in any one of claims 1 to 10.

14. The chip device of claim 13, wherein, The chip device also includes the memory.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores program instructions that, when executed, cause the method as described in any one of claims 1 to 10 to be performed.

16. A computer program product comprising program instructions, characterized in that, When the program instructions are executed on a computer, the computer causes the computer to perform the method as described in any one of claims 1 to 10.

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