Sensing method and apparatus

Abstract

The present application relates to the technical field of wireless communications. Provided are a sensing method and apparatus, aiming to reduce resource waste. In the method, a receiving end receives a first sensing signal on a first frequency-domain resource; and the receiving end sends first information on the basis of a measurement result of the first sensing signal, wherein the first information is configured to determine a second frequency-domain resource, and the second frequency-domain resource is determined on the basis of the measurement result of the first sensing signal. On the basis of the solution, the second frequency-domain resource can be determined by means of the measurement result of the first sensing signal, that is, frequency-domain resources can be dynamically adjusted on the basis of an observation result; therefore, the frequency-domain resources can be saved on to a certain extent.

Description

A sensing method and device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on November 29, 2023, with application number 202311626578.3 and application name "A Perception Method and Device", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of wireless communication technology, and in particular to a sensing method and device. Background Art

[0004] In recent years, wireless sensing technology has attracted widespread attention in academia. Wireless sensing technology analyzes changes in a reference signal during propagation to determine the characteristics of the signal space, or channel, to achieve scene perception. Scenes can include factors such as buildings and moving vehicles. Radar is a classic wireless sensing method, widely used in fields such as agriculture and meteorology. Its basic principle is that a transmitter transmits a specific waveform signal, which is received by a receiver through a channel. The transmitter's transmitted signal and the receiver's received signal are processed to extract targets of interest in the channel.

[0005] However, the time-frequency resources of the reference signal in the current communication system are fixed and do not change after being allocated, resulting in a certain degree of resource waste. Summary of the Invention

[0006] This application provides a perception method and device to reduce resource waste.

[0007] In a first aspect, a sensing method is provided. This method can be performed by a receiving end, or by a chip or chip system. The receiving end can be a network device or a terminal device. In this method, the receiving end receives a first sensing signal on a first frequency domain resource. The receiving end transmits first information based on a measurement result of the first sensing signal. The first information is used to determine a second frequency domain resource, and the second frequency domain resource is determined based on the measurement result of the first sensing signal.

[0008] Based on this solution, since the second frequency domain resources can be determined by the measurement result of the first perception signal, that is, the frequency domain resources can be dynamically adjusted according to the measurement result, the frequency domain resources can be saved to a certain extent.

[0009] In one possible implementation, the receiving end receives the second perception signal based on the second frequency domain resource. In this solution, the second frequency domain resource is determined based on the measurement result of the first perception signal, and the second perception signal is transmitted and received on the second frequency domain resource. In other words, the frequency domain resource for the second perception can be determined based on the result of the first perception, thereby dynamically adjusting the frequency domain resource used for perception and saving resources to a certain extent.

[0010] In one possible implementation, the receiving end receives second information, where the second information is used to evaluate the accuracy of the measurement result, and sends the first information based on the measurement result of the first perception signal and the second information.

[0011] Based on this solution, the receiving end can evaluate the accuracy of the measurement result of the first perception signal based on the second information, thereby determining whether to perform perception again. Therefore, if the accuracy of the measurement result of the first perception signal is low, performing perception again can improve perception performance. If the accuracy of the measurement result of the first perception signal is high, performing perception again is not required, thus saving resources.

[0012] In one possible implementation, the first information includes range information of the target location or an estimated value of the target location or distance, where the estimated value is obtained based on a measurement result of the first perception signal, or the first information includes indication information of the second frequency domain resource.

[0013] Based on this solution, when the first information includes the range information of the target location or an estimated value of the target location or distance, the transmitting end and the receiving end can determine the second frequency domain resource according to a pre-agreed method, thereby saving transmission resources. When the first information includes indication information of the second frequency domain resource, the receiving end can determine the second frequency domain resource and indicate it to the transmitting end, so that the determined second frequency domain resource better meets the scenario requirements.

[0014] In one possible implementation, the second frequency domain resource and the first frequency domain resource are located in the same frequency band and are continuous in the frequency domain. Alternatively, the second frequency domain resource and the first frequency domain resource are located in the same frequency band and are discontinuous in the frequency domain. Alternatively, the second frequency domain resource and the first frequency domain resource are located in different frequency bands and are discontinuous in the frequency domain.

[0015] Based on the above scheme, if the second frequency domain resources and the first frequency domain resources are located in the same frequency band and are continuous in the frequency domain, they can be implemented based on the same set of hardware, such as a radio frequency unit or a baseband unit, which can reduce the impact of non-ideal factors between different frequency bands, such as carrier frequency deviation, time delay or phase difference between different frequency bands, etc. If the second frequency domain resources and the first frequency domain resources are located in the same frequency band and are discontinuous in the frequency domain, then compared with the case where the frequency band is continuous, the in-band discontinuity can achieve a larger virtual bandwidth (the difference between the maximum signal frequency and the minimum signal frequency) based on the same signal bandwidth, which is beneficial to improving the ranging resolution. If the second frequency domain resources and the first frequency domain resources are located in different frequency bands and are discontinuous in the frequency domain, a larger virtual bandwidth (the difference between the maximum signal frequency and the minimum signal frequency) can be achieved based on the same signal bandwidth, thereby improving the ranging resolution.

[0016] In a possible implementation, the first frequency domain resources include frequency domain resources of a first frequency band and / or frequency domain resources of a second frequency band. The first frequency band and the second frequency band are different.

[0017] Based on the above solution, if the first frequency domain resources include frequency domain resources of the first frequency band or frequency domain resources of the second frequency band, the impact of non-ideal factors between different frequency bands, such as carrier frequency offset, delay or phase difference between different frequency bands, etc., can be reduced. If the first frequency domain resources include frequency domain resources of the first frequency band and frequency domain resources of the second frequency band, a larger virtual bandwidth (the difference between the maximum signal frequency and the minimum signal frequency) can be achieved based on the same signal bandwidth, thereby improving ranging resolution.

[0018] In one possible implementation, before receiving the first perception signal on the first frequency domain resource, the receiving end receives request information for perception capability information, where the perception capability information includes supported frequency bands and supported bandwidths. The receiving end sends the perception capability information.

[0019] In a possible implementation, the receiving end sends a request message to the sending end, the request message being used to request the sending end's sensing capability information, the sensing capability information including the frequency band and bandwidth supported by the sending end. The receiving end receives the sensing capability information.

[0020] Based on this solution, the sending end and the receiving end can determine the frequency bands and bandwidths supported by both parties through the interaction of the perception capability information, so that the determined frequency domain resources can meet the perception capability information of both parties.

[0021] In a possible implementation, the second frequency domain resource is determined based on a column correlation between the first perception signal and the second perception signal, or the second frequency domain resource is determined based on a Fisher information matrix (FIM) of a measurement result of the first perception signal.

[0022] Based on this solution, the second frequency domain resources can be determined through the column correlation and the Fisher information matrix, and the second frequency domain resources determined through the column correlation and the Fisher information matrix are more applicable.

[0023] In one possible implementation, the second perception signal is carried on M second frequency domain resources, and the M second frequency domain resources satisfy one or more of the following: minimizing the column correlation matrix of the measurement results of the first perception signal and the measurement results of the second perception signal. Alternatively, minimizing the condition number of the Fisher information matrix. Alternatively, minimizing the sum of the inverse eigenvalues ​​of the Fisher information matrix. Alternatively, maximizing the determinant of the Fisher information matrix. Alternatively, maximizing the minimum eigenvalue of the Fisher information matrix. Alternatively, minimizing the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix. M is an integer greater than 0. The value of M may be determined by the receiving end, the control end, preconfigured, or predefined by the protocol.

[0024] Based on this solution, the second frequency domain resources are made to meet one or more of the above requirements through an optimization algorithm, so that the determined second frequency domain resources can be made more applicable.

[0025] In one possible implementation, the second information includes one or more of the following: a condition number threshold of the Fisher information matrix, a determinant threshold of the Fisher information matrix, a sum threshold of the inverse eigenvalues ​​of the Fisher information matrix, a minimum eigenvalue threshold of the Fisher information matrix, or a maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

[0026] Based on the above scheme, the accuracy of the measurement results can be evaluated by the parameter threshold of the Fisher information matrix, and the measurement results can be evaluated more accurately.

[0027] In one possible implementation, a Fisher information matrix of the measurement result is determined based on the measurement result of the first perception signal. When the condition number of the Fisher information matrix is ​​greater than or equal to the condition number threshold of the Fisher information matrix, the first information is sent. Alternatively, when the determinant of the Fisher information matrix is ​​less than or equal to the determinant threshold of the Fisher information matrix, the first information is sent. Alternatively, when the sum of the inverse eigenvalues ​​of the Fisher information matrix is ​​greater than or equal to the sum of the inverse eigenvalues ​​of the Fisher information matrix, the first information is sent. Alternatively, when the minimum eigenvalue of the Fisher information matrix is ​​less than or equal to the minimum eigenvalue threshold of the Fisher information matrix, the first information is sent. Alternatively, when the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix is ​​greater than or equal to the maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix, the first information is sent.

[0028] Based on the above solution, the receiving end can evaluate the accuracy of the measurement result of the first perception signal based on the parameters of the Fisher information matrix, thereby determining whether to perform perception again. Therefore, if the accuracy of the measurement result of the first perception signal is low, performing perception again can improve perception performance. If the accuracy of the measurement result of the first perception signal is high, performing perception again is not required, thus saving resources.

[0029] In a second aspect, a sensing method is provided. This method can be performed by a transmitter, or by a chip or chip system. The transmitter can be a network device or a terminal device. In this method, the transmitter sends a first sensing signal on a first frequency domain resource. The transmitter receives first information, which is used to determine a second frequency domain resource. The second frequency domain resource is determined based on a measurement result of the first sensing signal.

[0030] In a possible implementation manner, the transmitting end sends the second perception signal based on the second frequency domain resource.

[0031] In a possible implementation, the transmitting end sends second information, where the second information is used to evaluate the accuracy of the measurement result. The first information is sent based on the measurement result of the first perception signal and the second information.

[0032] In one possible implementation, the first information includes range information of the target location or an estimated value of the target location or distance, where the estimated value is obtained based on a measurement result of the first perception signal, or the first information includes indication information of the second frequency domain resource.

[0033] In one possible implementation, the second frequency domain resource and the first frequency domain resource are located in the same frequency band and are continuous in the frequency domain. Alternatively, the second frequency domain resource and the first frequency domain resource are located in the same frequency band and are discontinuous in the frequency domain. Alternatively, the second frequency domain resource and the first frequency domain resource are located in different frequency bands and are discontinuous in the frequency domain.

[0034] In a possible implementation, the first frequency domain resources include frequency domain resources of a first frequency band and / or frequency domain resources of a second frequency band. The first frequency band and the second frequency band are different.

[0035] In a possible implementation, the transmitting end sends a request message for requesting sensing capability information, where the sensing capability information includes supported frequency bands and supported bandwidths, and the transmitting end receives the sensing capability information.

[0036] In a possible implementation, the second frequency domain resources are determined according to a column correlation of a measurement result of the first perception signal, or the second frequency domain resources are determined according to a Fisher information matrix of the measurement result of the first perception signal.

[0037] In one possible implementation, the second perception signal is carried on M second frequency domain resources, and the M second frequency domain resources satisfy one or more of the following: minimizing the column correlation matrix of the measurement results of the first perception signal and the measurement results of the second perception signal. Alternatively, minimizing the condition number of the Fisher information matrix. Alternatively, minimizing the sum of the inverse eigenvalues ​​of the Fisher information matrix. Alternatively, maximizing the determinant of the Fisher information matrix. Alternatively, maximizing the minimum eigenvalue of the Fisher information matrix. Alternatively, minimizing the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix. M is an integer greater than 0. The value of M may be determined by the receiving end, the control end, preconfigured, or predefined by the protocol.

[0038] In one possible implementation, the second information includes one or more of the following: a condition number threshold of the Fisher information matrix, a determinant threshold of the Fisher information matrix, a sum threshold of the inverse eigenvalues ​​of the Fisher information matrix, a minimum eigenvalue threshold of the Fisher information matrix, or a maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

[0039] In one possible implementation, the condition number of the Fisher information matrix of the measurement result of the first sensory signal is greater than or equal to a condition number threshold of the Fisher information matrix. Alternatively, the determinant of the Fisher information matrix of the measurement result of the first sensory signal is less than or equal to a determinant threshold of the Fisher information matrix. Alternatively, the sum of the reciprocal eigenvalues ​​of the Fisher information matrix of the measurement result of the first sensory signal is greater than or equal to a sum threshold of the reciprocal eigenvalues ​​of the Fisher information matrix. Alternatively, the minimum eigenvalue of the Fisher information matrix of the measurement result of the first sensory signal is less than or equal to a minimum eigenvalue threshold of the Fisher information matrix. Alternatively, the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix of the measurement result of the first sensory signal is greater than or equal to a maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

[0040] According to a third aspect, a communication device is provided, comprising: a processing unit and a transceiver unit.

[0041] The transceiver unit is configured to receive a first perception signal on a first frequency domain resource. The processing unit is configured to generate first information based on a measurement result of the first perception signal. The first information is used to determine a second frequency domain resource, where the second frequency domain resource is determined based on the measurement result of the first perception signal. The transceiver unit is further configured to send the first information.

[0042] In a possible implementation manner, the transceiver unit is further configured to receive a second perception signal based on a second frequency domain resource.

[0043] In one possible implementation, the transceiver unit is further configured to receive second information, where the second information is used to evaluate the accuracy of the measurement result. The transceiver unit is further configured to send the first information based on the measurement result of the first perception signal and the second information.

[0044] In one possible implementation, the first information includes range information of the target location or an estimated value of the target location or distance, where the estimated value is obtained based on a measurement result of the first perception signal, or the first information includes indication information of the second frequency domain resource.

[0045] In one possible implementation, the second frequency domain resource and the first frequency domain resource are located in the same frequency band and are continuous in the frequency domain. Alternatively, the second frequency domain resource and the first frequency domain resource are located in the same frequency band and are discontinuous in the frequency domain. Alternatively, the second frequency domain resource and the first frequency domain resource are located in different frequency bands and are discontinuous in the frequency domain.

[0046] In a possible implementation, the first frequency domain resources include frequency domain resources of a first frequency band and / or frequency domain resources of a second frequency band. The first frequency band and the second frequency band are different.

[0047] In one possible implementation, the transceiver unit is further configured to, before receiving the first perception signal on the first frequency domain resource, receive request information for perception capability information, the perception capability information including supported frequency bands and supported bandwidths. The transceiver unit is further configured to send the perception capability information.

[0048] In a possible implementation, the second frequency domain resource is determined according to a column correlation between the first perception signal and the second perception signal, or the second frequency domain resource is determined according to a Fisher information matrix of a measurement result of the first perception signal.

[0049] In one possible implementation, the second perception signal is carried on M second frequency domain resources, and the M second frequency domain resources satisfy one or more of the following: minimizing the column correlation matrix of the measurement results of the first perception signal and the measurement results of the second perception signal. Alternatively, minimizing the condition number of the Fisher information matrix. Alternatively, minimizing the sum of the inverse eigenvalues ​​of the Fisher information matrix. Alternatively, maximizing the determinant of the Fisher information matrix. Alternatively, maximizing the minimum eigenvalue of the Fisher information matrix. Alternatively, minimizing the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix. M is an integer greater than 0. The value of M may be determined by the receiving end, the control end, preconfigured, or predefined by the protocol.

[0050] In one possible implementation, the second information includes one or more of the following: a condition number threshold of the Fisher information matrix, a determinant threshold of the Fisher information matrix, a sum threshold of the inverse eigenvalues ​​of the Fisher information matrix, a minimum eigenvalue threshold of the Fisher information matrix, or a maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

[0051] In one possible implementation, the processing unit is further configured to determine a Fisher information matrix of the measurement result based on the measurement result of the first perception signal. The transceiver unit is further configured to send the first information when the condition number of the Fisher information matrix is ​​greater than or equal to a condition number threshold of the Fisher information matrix. Alternatively, the transceiver unit is further configured to send the first information when the determinant of the Fisher information matrix is ​​less than or equal to a determinant threshold of the Fisher information matrix. Alternatively, the transceiver unit is further configured to send the first information when the sum of the inverse eigenvalues ​​of the Fisher information matrix is ​​greater than or equal to the sum of the inverse eigenvalues ​​of the Fisher information matrix. Alternatively, the transceiver unit is further configured to send the first information when the minimum eigenvalue of the Fisher information matrix is ​​less than or equal to a minimum eigenvalue threshold of the Fisher information matrix. Alternatively, the transceiver unit is further configured to send the first information when the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix is ​​greater than or equal to a maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

[0052] In a fourth aspect, a communication device is provided, comprising: a processing unit and a transceiver unit.

[0053] The transceiver unit is configured to transmit a first perception signal on a first frequency domain resource. The transceiver unit is further configured to receive first information, where the first information is used to determine a second frequency domain resource, where the second frequency domain resource is determined based on a measurement result of the first perception signal. The processing unit is configured to determine the second frequency domain resource based on the first information.

[0054] In a possible implementation manner, the transceiver unit is further configured to send a second perception signal based on the second frequency domain resource.

[0055] In a possible implementation, the transceiver unit is further configured to send second information, where the second information is used to evaluate the accuracy of the measurement result. The first information is sent based on the measurement result of the first perception signal and the second information.

[0056] In one possible implementation, the first information includes range information of the target location or an estimated value of the target location or distance, where the estimated value is obtained based on a measurement result of the first perception signal, or the first information includes indication information of the second frequency domain resource.

[0057] In one possible implementation, the second frequency domain resource and the first frequency domain resource are located in the same frequency band and are continuous in the frequency domain. Alternatively, the second frequency domain resource and the first frequency domain resource are located in the same frequency band and are discontinuous in the frequency domain. Alternatively, the second frequency domain resource and the first frequency domain resource are located in different frequency bands and are discontinuous in the frequency domain.

[0058] In a possible implementation, the first frequency domain resources include frequency domain resources of a first frequency band and / or frequency domain resources of a second frequency band. The first frequency band and the second frequency band are different.

[0059] In a possible implementation, the transceiver unit is further configured to send request information for requesting sensing capability information, where the sensing capability information includes supported frequency bands and supported bandwidths. The transceiver unit is further configured to receive the sensing capability information.

[0060] In a possible implementation, the second frequency domain resources are determined according to a column correlation of a measurement result of the first perception signal, or the second frequency domain resources are determined according to a Fisher information matrix of the measurement result of the first perception signal.

[0061] In one possible implementation, the second perception signal is carried on M second frequency domain resources, and the M second frequency domain resources satisfy one or more of the following: minimizing the column correlation matrix of the measurement results of the first perception signal and the measurement results of the second perception signal. Alternatively, minimizing the condition number of the Fisher information matrix. Alternatively, minimizing the sum of the inverse eigenvalues ​​of the Fisher information matrix. Alternatively, maximizing the determinant of the Fisher information matrix. Alternatively, maximizing the minimum eigenvalue of the Fisher information matrix. Alternatively, minimizing the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix. M is an integer greater than 0. The value of M may be determined by the receiving end, the control end, preconfigured, or predefined by the protocol.

[0062] In a fifth aspect, the present application provides a communication device comprising a processor coupled to a memory, the memory being configured to store computer programs or instructions, and the processor being configured to execute the computer programs or instructions to perform the respective implementation methods of the first and second aspects described above. The memory may be located within or outside the device. The number of processors may be one or more.

[0063] In a sixth aspect, the present application provides a communication device, comprising: a processor and an interface circuit, the interface circuit being used to communicate with other devices, and the processor being used to implement the various methods of the first and second aspects above.

[0064] In a seventh aspect, a communication device is provided, which includes a logic circuit and an input / output interface.

[0065] In an eighth aspect, the present application provides a communication system, comprising: a transmitting end and a receiving end for executing each implementation method of the above-mentioned first and second aspects.

[0066] In a ninth aspect, the present application also provides a chip system, comprising: a processor for executing the various implementation methods of the first and second aspects above.

[0067] In a tenth aspect, the present application also provides a computer program product, comprising computer execution instructions, which, when executed on a computer, enable the implementation methods of the first and second aspects to be executed.

[0068] In the eleventh aspect, the present application also provides a computer-readable storage medium, in which a computer program or instruction is stored. When the instruction is executed on a computer, the implementation methods of the first and second aspects mentioned above are implemented.

[0069] The technical effects achieved in the above-mentioned second to eleventh aspects can refer to the technical effects in the first and second aspects, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] FIG1 is a schematic diagram of a communication system provided in an embodiment of the present application;

[0071] FIG2A is a schematic diagram of a perception scenario provided by an embodiment of the present application;

[0072] FIG2B is a schematic diagram of another perception scenario provided in an embodiment of the present application;

[0073] FIG2C is a schematic diagram of another perception scenario provided in an embodiment of the present application;

[0074] FIG2D is a schematic diagram of another perception scenario provided in an embodiment of the present application;

[0075] FIG2E is a schematic diagram of another perception scenario provided in an embodiment of the present application;

[0076] FIG2F is a schematic diagram of another perception scenario provided in an embodiment of the present application;

[0077] FIG2G is a schematic diagram of another perception scenario provided in an embodiment of the present application;

[0078] FIG2H is a schematic diagram of another perception scenario provided in an embodiment of the present application;

[0079] FIG3 is a schematic diagram of a time domain distribution of a PRS;

[0080] FIG4A is a schematic diagram of RB distribution of a PRS;

[0081] FIG4B is a schematic diagram of RE distribution of a PRS;

[0082] FIG5 is an exemplary flow chart of a sensing method provided in an embodiment of the present application;

[0083] FIG6A is a schematic diagram of a first sensing resource provided in an embodiment of the present application;

[0084] FIG6B is a schematic diagram of another first sensing resource provided in an embodiment of the present application;

[0085] FIG7A is a schematic diagram of a first sensing resource and a second sensing resource provided in an embodiment of the present application;

[0086] FIG7B is a schematic diagram of another first sensing resource and a second sensing resource provided in an embodiment of the present application;

[0087] FIG7C is a schematic diagram of another first sensing resource and a second sensing resource provided in an embodiment of the present application;

[0088] FIG7D is a schematic diagram of another first sensing resource and a second sensing resource provided in an embodiment of the present application;

[0089] FIG8 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0090] FIG9 is a schematic diagram of another communication device provided in an embodiment of the present application;

[0091] FIG10 is a schematic diagram of another communication device provided in an embodiment of the present application;

[0092] FIG11 is a schematic diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0093] The technical solutions of the embodiments of the present application can be applied to New Radio (NR) systems, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Worldwide Interoperability for Microwave Access (WiMAX) communication systems, and next-generation wireless communication systems such as 6G, without limitation.

[0094] FIG1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. As shown in FIG1 , the communication system includes a wireless access network 100. The wireless access network 100 may include at least one network device (such as 110a and / or 110b in FIG1 ) and may also include at least one terminal device (such as at least one of 120a-120j in FIG1 ). The terminal device is connected to the access network device wirelessly, and the access network device is connected to the core network device wirelessly or by wire. Terminal devices and network devices may be connected to each other by wire or by wireless. FIG1 is only a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG1 .

[0095] A network device is a network-side device with wireless transceiver capabilities. A network device can be a device in a radio access network (RAN) that provides wireless communication capabilities for terminal devices, and is called a RAN device. For example, a network device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a fifth-generation (5G) mobile communication system, a next-generation base station in a sixth-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. It can also be a module or unit that performs some of the functions of a base station, such as a centralized unit (CU) or a distributed unit (DU). The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete the functions of part of the physical layer or all of the physical layer. For the specific description of the above-mentioned protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The network device can be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0096] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, and different RAN nodes implement part of the functions of the base station respectively. For example, the RAN node can be a CU, DU, CU-control plane (CP), CU-user plane (UP), or radio unit (RU). The CU and DU can be set separately, or they can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0097] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (ORAN) system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application takes CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0098] A terminal device is a user-side device with wireless transceiver capabilities. A terminal device may also be referred to as user equipment (UE), a mobile station, a mobile terminal, etc. Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. The terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a robotic arm, a smart home appliance, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0099] Network devices and terminal devices can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; on water; and in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of network devices and terminal devices.

[0100] The roles of network devices and terminal devices can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile network device. To terminal devices 120j accessing the wireless access network 100 via 120i, terminal device 120i is a network device. However, to network device 110a, 120i is a terminal device, meaning that communication between 110a and 120i occurs via a wireless air interface protocol. Of course, communication between 110a and 120i can also occur via an interface protocol between network devices. In this case, 120i is also a network device relative to 110a. Therefore, both network devices and terminal devices can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be referred to as communication devices with network device functionality, while 120a-120j in Figure 1 can be referred to as communication devices with terminal device functionality.

[0101] In the embodiments of the present application, the functions of the network device may also be performed by a module (such as a chip) in the network device, or by a control subsystem that includes the network device functions. The control subsystem that includes the network device functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal device may also be performed by a module (such as a chip or a modem) in the terminal device, or by a device that includes the terminal device functions.

[0102] In recent years, wireless sensing technology has attracted widespread attention in academia. Wireless sensing technology analyzes changes in wireless signals during propagation to determine the characteristics of the signal space, or channel, to achieve scene perception. Scenes can include factors such as buildings and moving vehicles. Radar is a classic wireless sensing method, widely used in fields such as agriculture and meteorology. Its basic principle is that a transmitter transmits a specific waveform signal, which is received by a receiver through a channel. The transmitter's transmitted signal and the receiver's received signal are processed to extract targets of interest in the channel.

[0103] In one possible implementation, the perception system may include a transmitter, a control terminal, and a receiver. The transmitter can transmit signals, and the receiver can receive signals. The signal transmitted by the transmitter is received by the receiver after passing through a vehicle (or other targets such as bicycles and drones). The receiver processes the signal and obtains a perception result. The perception result may include information such as distance, speed, angle, or signal strength. The control terminal can perform resource scheduling, such as determining the time-frequency resources for transmitting signals and sending this information to the transmitter and receiver. This allows the transmitter to transmit signals on the time-frequency resources determined by the control terminal, and the receiver to receive signals on the time-frequency resources determined by the control terminal.

[0104] Referring to Figure 2A , a network device (such as a base station) can serve as a transmitter and a controller, and a terminal device (such as a UE) can serve as a receiver. Referring to Figure 2B , a UE serves as a transmitter, and a base station serves as a receiver and a controller. Referring to Figure 2C , base station 1 serves as a transmitter and a controller, and base station 2 serves as a receiver. Referring to Figure 2D , UE1 serves as a transmitter and a controller, and UE2 serves as a receiver. Referring to Figure 2E , base station 1 serves as a transmitter, base station 2 serves as a receiver, and base station 3 serves as a controller. Referring to Figure 2F , a base station serves as a transmitter, a receiver, and a controller. Referring to Figure 2G , a UE serves as a transmitter, a receiver, and a controller. Referring to Figure 2H , UE1 serves as a transmitter, UE2 serves as a controller, and a base station serves as a controller.

[0105] The primary function of wireless communication systems is to exchange information between transceivers. The fundamental principle is that a transmitter transmits a specific waveform signal, which is received by a receiver through a channel and then demodulated after signal processing. Radar and wireless communication share striking similarities in the physical processes of transmission, transmission, and reception. The integration of wireless communication and sensing technologies, enabling simultaneous communication and environmental awareness, has become a hot topic of research.

[0106] Progressive sensing is a method for gradually optimizing resources while maintaining high performance. Its basic idea is to first perform sensing based on a smaller set of resources to obtain a rough perception result. Based on this rough perception result, performance is gradually optimized by gradually increasing resource usage, rather than allocating a large amount of resources all at once. This method improves the efficiency of sensing resource use while ensuring good sensing performance.

[0107] The concept of progressive perception has already been applied to practical perception systems. For example, by first performing a coarse beam scan in the spatial domain, the target direction can be quickly determined, thereby reducing the search range and improving positioning efficiency. Furthermore, by performing a fine beam scan, the signal energy can be more concentrated in the target direction, reducing signal propagation loss and interference, thereby improving transmission quality and reliability. For another example, by first performing a coarse velocity estimation in the time domain, the approximate speed range of the target can be quickly determined, thereby reducing the target speed search range and improving computational efficiency. The reliability of the velocity measurement results can then be improved based on the fine velocity estimation.

[0108] However, there is currently no technical solution for progressive perception in the frequency domain. In other words, in the current perception process, the frequency domain resource allocation number is fixed and does not change, resulting in a certain degree of waste of frequency domain resources.

[0109] Positioning is an important function of the NR system. Its implementation relies on the positioning reference signal (PRS). Its resource allocation is mainly considered from two dimensions: time domain and frequency domain. The time domain dimension can be further divided into the slot level and the symbol level, and the frequency domain dimension can be further divided into the resource block (RB) level and the resource element (RE) level. The configuration of the positioning signal in NR can be summarized as follows:

[0110] 1. Time domain resource allocation.

[0111] (1) Slot level. As shown in Figure 3, PRS is mainly determined by four parameters: 1) PRSResourceSetPeriod, the period of PRS at the slot level; 2) PRSResourceOffset, the offset of the starting position of PRS; 3) PRSResourceRepetition, the number of times PRS is repeated in one period; and 4) PRSResourceTimeGap, the interval between two PRSs in one period.

[0112] The resource distribution on the time slot can be determined by the above four parameters.

[0113] (2) Symbol level. A time slot contains 14 symbols. For a specific time slot, it is necessary to determine which symbols are used to carry the PRS. As shown in Figure 4A, the symbol-level configuration can be determined by specifying the starting position of the PRS (SymbolStart) and the number of symbols occupied (NumPRSSymbols).

[0114] 2. Frequency Domain Resource Allocation

[0115] (1) RB level. The number of RBs (NumRB) parameter specifies how many RBs the PRS signal occupies. An RB typically contains 12 REs. The starting position is also determined by the offset (RBOffset) of the RB start position.

[0116] (2) RE level. As shown in Figure 4B, after the number of RBs is determined, it is also necessary to determine which REs in an RB are used to carry PRS. Specifically, the resource size (CombSize) can be used to determine how many REs are contained in an RB for carrying PRS. The offset of the starting position of the RE (REOffset) is also needed to determine the offset of the first RE carrying PRS on different symbols relative to the reference RE.

[0117] As shown in Figures 3, 4A, and 4B, in the current NR system, PRSs are uniform in the time-frequency domain, and a staggered scheme is adopted on REs of different symbols. However, the time-frequency resources are fixed and do not change after allocation, resulting in a certain degree of resource waste.

[0118] In view of this, an embodiment of the present application provides a perception method. In this method, a receiving end can receive a first perception signal on a first frequency domain resource and, based on the measurement result of the first perception signal, send first information to a transmitting end. The first information can be used to determine a second frequency domain resource, where the second frequency domain resource is determined based on the measurement result of the first perception signal. Based on this solution, since the second frequency domain resource can be determined based on the measurement result of the first perception signal, that is, the frequency domain resource can be dynamically adjusted based on the observation result, resources can be saved to a certain extent.

[0119] Referring to FIG5 , which is an exemplary flowchart of a sensing method provided in an embodiment of the present application, the following operations may be included. In the embodiment shown in FIG5 , the transmitting end may be a network device or a terminal device, and the receiving end may be a network device or a terminal device. Similarly, the controlling end may be a network device or a terminal device, as shown in FIG2A through FIG2G . The embodiment shown in FIG5 may be applied to performing distance measurement, positioning, or speed measurement of a target, for example.

[0120] S501: The transmitting end sends a first perception signal on a first frequency domain resource.

[0121] Correspondingly, the receiving end receives the first perception signal on the first frequency domain resource.

[0122] The first frequency domain resource may be indicated by the control terminal, or may be pre-configured or pre-defined by the protocol, which is not specifically limited in this application. The first sensing signal in S501 may be a PRS, an uplink reference signal (SRS), or a sensing reference signal, etc.

[0123] In one example, the first frequency domain resources may belong to a single frequency band, or the first frequency domain resources may include frequency domain resources within a frequency band, as shown in FIG6A . In another example, the first frequency domain resources may belong to multiple or at least two different frequency bands, or the first frequency domain resources may include frequency domain resources of multiple or at least two different frequency bands, as shown in FIG6B . In FIG6B , the frequency bands in which the first frequency domain resources are located may be located in the same frequency range (FR).

[0124] It should be noted that a frequency range may include multiple frequency bands. For example, 401MHz to 7125MHz may belong to FR1, and 24250MHz to 52600MHz may belong to FR2. It is understood that FR1 and FR2 are shown only as examples and do not constitute a limitation on the frequency range. The first frequency domain resources involved in the embodiments of the present application may be located within one frequency range or may be located within two or more frequency ranges.

[0125] In one possible scenario, whether the first frequency domain resource belongs to a single frequency band or multiple frequency bands can be determined based on the perception capability information of the transmitting end and / or the receiving end. The perception capability information may include supported frequency bands and supported bandwidths. For example, the control end can obtain the perception capability information of the transmitting end. For example, the control end can send a request message to the transmitting end, and the request message can be used to request the perception capability information. The transmitting end can send the perception capability information to the control end. Optionally, if the control end and the transmitting end are the same device, the above process can be omitted, and the control end can directly obtain the perception capability information of the transmitting end, which will not be repeated below. Similarly, the control end can also obtain the perception capability information of the receiving end, which can be implemented with reference to the aforementioned method of obtaining the perception capability information of the transmitting end, and the repeated parts will not be repeated.

[0126] S502: The receiving end sends first information.

[0127] Correspondingly, the control terminal receives the first information.

[0128] The first information can be used to determine a second frequency domain resource, which can be used to carry the second perception signal. In one possible scenario, the first information can include indication information of the second frequency domain resource, meaning that the receiving end can determine the second frequency domain resource and send the indication information of the second frequency domain resource. The receiving end receives the perception signal and determines the second frequency domain resource to maximize the perception result and determine the second frequency domain resource.

[0129] In another possible scenario, the first information may include the range information of the target location or the estimated value of the target location or distance. It is understandable that the range information of the target location and the estimated value of the target location or distance can be determined based on the measurement result of the first perception signal. That is, the receiving end can send the range information of the target location or the estimated value of the target location or distance, and the control end determines the second frequency domain resources. The control end determines the second frequency domain resources without the need to feed back the information of the second frequency domain resources. Feedback of a small amount of the target location range or the estimated value of the target location or distance is fed back. When the number of targets is small, the resource overhead is less than feeding back the information of the second frequency domain resources.

[0130] In a possible implementation, the second frequency domain resource may be determined based on a measurement result or an observation result of the first perception signal, which is described below in two cases.

[0131] Case 1: determining the second frequency domain resource according to the column correlation between the first perception signal and the second perception signal.

[0132] In case 1, the receiving end or the control end may determine the column correlation between the first perception signal and the second perception signal. To facilitate understanding of the column correlation, the basic principle of compressed sensing is first introduced below.

[0133] Assume that there are Q candidate frequency points in the frequency domain that can be used for sensing, and select M frequency points from the total Q frequency points for sensing. Then the observation equation can be written as the following formula (1): y = ΦFx = Ψx Formula (1)

[0134] in It is an M*1 dimensional complex vector, where each value represents the response at a certain frequency point. Represents the amplitude of the signal at different delays. Specifically, x can be expressed as shown in the following formula (2):

[0135] x n Represents the corresponding delay τ n The amplitude.

[0136] Represents the Fourier transform matrix, where the rows represent the changes in the frequency dimension and the columns represent the changes in the delay dimension. Specifically, the matrix F can be expressed as shown in the following formula (3):

[0137] Δf represents the interval between two adjacent frequency points.

[0138] Represents the frequency selection matrix, that is, M frequency points are selected from Q frequency points. Specifically, the matrix Φ can be written as shown in the following formula (4):

[0139] Each row of the matrix has only one element that is 1, and the other elements are all 0. And each column has at most one element that is 1. If an element in the qth column is 1, it means that the qth frequency point is selected for perception. The M frequency points selected from the Q frequency points are numbered, that is, the frequency points used for perception can be expressed as {f1,f2,…,f M}.

[0140] Represents the observation matrix, which can be expressed as the following formula (5):

[0141] In practical applications, most elements in vector x are zero, with only a small number of non-zero elements. Assume that there are only K non-zero elements. Therefore, even if the number of measurement samples M is much smaller than the number of unknowns N, the values ​​of the K non-zero elements can still be accurately recovered.

[0142] The mathematical model of sparse observation is shown above. The purpose of sparse signal design is to achieve the best observation performance by selecting a small number of frequency resources. In order to quantitatively evaluate the quality of the observation matrix, the column correlation of the matrix is ​​introduced. For a certain matrix Its column correlation can be defined as shown in formula (6): μ(Ψ)=max i≠j |<ψ′ i ,ψ′ j >| Formula (6)

[0143] where ψ′ i is the result of ψ normalization, that is The column correlation describes the correlation between two different delay measurement bases, such as the correlation between the first perception signal and the second perception signal. Assume ψ′ i is the observation result of the first perception signal, ψ′ j is the observation result of the second perception signal.

[0144] Ideally, each column of the observation matrix is ​​orthogonal, that is, the column correlation is 0. However, in practice, when the dimension M of the matrix is ​​less than N, then the rank of the matrix rank(Ψ)≤N, which means that the columns of the matrix Ψ cannot be completely orthogonal.

[0145] Since the observation matrix can be written as shown in formula (5), [τ1,τ2,…,τ N ] is a grid pre-divided based on the measurement result of the first perception signal, or the estimated value obtained based on the measurement result of the first perception signal. It can be understood that, in the absence of transmitting and receiving the first perception signal, the target's delay may be distributed at any position, but after transmitting and receiving the first perception signal, the approximate range of the target can be determined, that is, the area with the target can be determined. Therefore, the area with the target can be divided into grids, and the density of the grid division can be finer than the grid when the first perception signal is transmitted and received. Given a set of frequencies [f1, f2, ..., f M ] can determine the matrix Ψ and calculate μ(Ψ), so the receiver can find a set of frequencies [f1,f2,…,f M ] corresponds to the smallest μ(Ψ), then [f1,f2,…,f M]The corresponding frequency domain resources can be regarded as the second frequency domain resources.

[0146] It should be noted that the above [f1,f2,…,f M The value of the subscript M in ] is given, that is, the number of second frequency domain resources determined by the receiving end or the control end is given, which can be predefined by the protocol, determined by the receiving end, determined by the control end, or preconfigured. This application does not make specific limitations and will not be repeated below. In other words, when determining the M second frequency domain resources, the receiving end or the control end can adopt the solution described in Case 1 or the solution described in Case 2 below.

[0147] Case 2: determining the second frequency domain resource according to the Fisher information matrix of the measurement result of the first perception signal.

[0148] In scenario 2, the receiving end or the control end determines a Fisher information matrix for the measurement result of the first perception signal. The receiving end or the control end can determine the second frequency domain resource based on the parameters of the Fisher information matrix. The following describes how to determine the Fisher information matrix.

[0149] Exemplarily, a method for determining a Fisher information matrix based on an orthogonal frequency division multiplexing (OFDM) signal is introduced, assuming that the first perception signal is an OFDM signal.

[0150] The OFDM signal can be expressed as shown in the following formula (7):

[0151] Where n represents the subcarrier index, N represents the total number of subcarriers, and c n represents the data modulated on the nth subcarrier, f n represents the frequency of the nth subcarrier, e represents complex additive white Gaussian noise, α m represents the amplitude of the mth multipath, τ m Indicates the delay of the mth multipath.

[0152] For the above OFDM signal, the element in the i-th row and j-th column of its FIM matrix can be expressed as shown in the following formula (8):

[0153] For the convenience of derivation, it is assumed that the modulation on each subcarrier is binary phase shift keying (BPSK) or quadrature phase shift keying (QPSK), that is, |c n | 2= 1. Also, assume that the amplitudes of all multipaths are the same and are known as A.

[0154] Therefore, the unknown parameters are composed of the delay formula (9): θ=[τ1,τ2,…,τ M ] T Formula (9)

[0155] Then, with respect to the mean μ of the unknown parameters y The first derivative of (θ) is given by formula (10):

[0156] The elements in the Fisher information matrix can be expressed as shown in formula (11):

[0157] For the parameter θ, it satisfies the relationship shown in formula (12):

[0158] F -1 The main diagonal elements of (θ) are also called the Cramér-Rao lower bound (CRLB) of parameter estimation. The measurement results of the first perception signal can be used to obtain a rough position of the target or an estimate of the target position. Assume that a total of N targets are determined, and the time delay of each target is [τ1,τ2,…,τ N ], then according to [τ1,τ2,…,τ N ], noise power, and a set of frequencies [f1,f2,…,f M ] can calculate the Fisher information matrix. Among them, a set of frequencies [f1,f2,…,f M ] satisfies the parameters of the corresponding Fisher information matrix, then [f1,f2,…,f M ]The corresponding frequency domain resources are regarded as the second frequency domain resources.

[0159] It is understood that the parameters of the Fisher information matrix may include one or more of the following:

[0160] 1) Condition number refers to the ratio of the largest eigenvalue to the smallest eigenvalue of the Fisher information matrix.

[0161] 2) Determinant, which refers to the product of all eigenvalues ​​of the Fisher information matrix.

[0162] 3) The sum of the reciprocals of the eigenvalues ​​refers to the sum of the reciprocals of the eigenvalues ​​of the Fisher information matrix.

[0163] 4) Minimum eigenvalue refers to the eigenvalue with the smallest value among the eigenvalues ​​of the Fisher information matrix.

[0164] 5) The maximum value of the main diagonal elements of the inverse matrix refers to the maximum value of the main diagonal elements in the inverse matrix of the Fisher information matrix.

[0165] It is understandable that the parameter names of the above-mentioned Fisher information matrix are only shown as examples and are not intended to limit the parameter names. Those skilled in the art may use other names to name the parameters of the Fisher information matrix.

[0166] The receiving end or the control end needs to find a set of frequencies [f1,f2,…,f M ] Satisfy the parameters of the above-mentioned Fisher information matrix, such as minimizing the condition number of the Fisher information matrix of the measurement result of the first perception signal, or maximizing the determinant of the Fisher information matrix of the measurement result of the first perception signal, or minimizing the sum of the inverses of the eigenvalues ​​of the Fisher information matrix of the measurement result of the first perception signal, or maximizing the minimum eigenvalue of the Fisher information matrix of the measurement result of the first perception signal, or minimizing the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix of the measurement result of the first perception signal.

[0167] In an embodiment of the present application, the second frequency domain resources and the first frequency domain resources may be continuous or discontinuous. For example, in the case where the first frequency domain resources include frequency domain resources of the first frequency band, the second frequency domain resources may also include frequency domain resources of the first frequency band, and may be continuous with the first frequency domain resources within the first frequency band, as shown in FIG7A . The above-mentioned first frequency domain resources and second frequency domain resources that are continuous within the frequency band can be implemented based on the same set of hardware, such as a radio frequency unit or a baseband unit, which can reduce the impact of non-ideal factors between different frequency bands, such as carrier frequency deviation, time delay or phase difference between different frequency bands, etc.

[0168] For another example, when the first frequency domain resources include frequency domain resources of the first frequency band, the second frequency domain resources may also include frequency domain resources of the first frequency band, and may be discontinuous with the first frequency domain resources within the first frequency band, as shown in Figure 7B. Compared with the case where the frequency band is continuous, the discontinuous within the band can achieve a larger virtual bandwidth (the difference between the maximum signal frequency and the minimum signal frequency) based on the same signal bandwidth, which is beneficial to improving the ranging resolution.

[0169] For another example, when the first frequency domain resources include frequency domain resources of the first frequency band and the second frequency band, the second frequency domain resources may also include frequency domain resources within the first frequency band and the second frequency band, and be discontinuous with the first frequency domain resources within the first frequency band and the second frequency band, as shown in FIG7C . Compared with the case of discontinuity within a frequency band, discontinuity between frequency bands can achieve a larger virtual bandwidth (the difference between the maximum frequency and the minimum frequency of the signal) based on the same signal bandwidth, further improving the ranging resolution. However, it requires the ability to coherently process signals that span a large frequency band, requires strict synchronization of the RF, and places very high demands on the acquisition capability of the analog to digital converter (ADC) and the baseband processing capability.

[0170] For another example, the first frequency domain resources include frequency domain resources within the first frequency band, the first frequency domain resources used for the second perception include frequency domain resources within the first frequency band, and the first frequency domain resources used for the second perception include the first frequency domain resources used for the first perception. Similarly, the second perception signal can be sent twice, that is, two perceptions are performed. And these two perceptions may not be coherently synthesized, as shown in Figure 7D. In some cases, such as when the target movement causes the radar cross section (RCS) to change during the two measurements, the signals of the two measurements cannot be coherently synthesized, but the signal-to-noise ratio of the measurement can be improved by incoherent synthesis. The first frequency domain resources and the second frequency domain resources in Figure 7D may be located in the same frequency band, or they may be located in different frequency bands, and this application does not make specific limitations.

[0171] In one possible implementation, the receiving end may determine whether a second perception is required based on the measurement result of the first perception signal. If the second perception is required, the receiving end may execute S502. If the second perception is not required, the receiving end may not execute S502 and use the estimated value obtained from the measurement result of the first perception signal as the perception result.

[0172] In one possible scenario, the receiving end may receive second information from the control end, and the second information may be used to evaluate the accuracy of the measurement result. The receiving end may determine whether a second perception is required based on the measurement result of the first perception signal and the second information. For example, if the receiving end evaluates that the measurement result of the first perception signal is highly accurate based on the second information, the receiving end may determine that a second perception is not required. For another example, if the receiving end evaluates that the measurement result of the first perception signal is less accurate based on the second information, the receiving end may determine that a second perception is required.

[0173] In one example, the second information may include a parameter threshold of the Fisher information matrix, which may be determined based on an empirical value. The parameter threshold may also be preconfigured or protocol-predefined, which is not specifically limited in this application. For example, the second information may include one or more of a condition number threshold of the Fisher information matrix, a determinant threshold of the Fisher information matrix, a sum threshold of the inverse eigenvalues ​​of the Fisher information matrix, a minimum eigenvalue threshold of the Fisher information matrix, or a maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

[0174] The receiving end can then determine the Fisher information matrix of the measurement result of the first perception signal. This can be implemented with reference to the relevant description in Case 2 and will not be repeated here. For example, if the condition number of the Fisher information matrix of the measurement result of the first perception signal is greater than or equal to the condition number threshold of the Fisher information matrix, the receiving end can determine that a second perception is required and can execute S502. For another example, if the determinant of the Fisher information matrix of the measurement result of the first perception signal is less than or equal to the determinant threshold of the Fisher information matrix, the receiving end can determine that a second perception is required and can execute S502. For another example, if the sum of the inverse eigenvalues ​​of the Fisher information matrix of the measurement result of the first perception signal is greater than or equal to the sum of the inverse eigenvalues ​​of the Fisher information matrix, the receiving end can determine that a second perception is required and can execute S502. For another example, if the minimum eigenvalue of the Fisher information matrix of the measurement result of the first perception signal is less than or equal to the minimum eigenvalue threshold of the Fisher information matrix, the receiving end can determine that a second perception is required and can execute S502. For another example, if the maximum value of the main diagonal element of the inverse matrix of the Fisher information matrix of the measurement result of the first perception signal is greater than or equal to the maximum value threshold of the main diagonal element of the inverse matrix of the Fisher information matrix, the receiving end can determine that a second perception is required, and the receiving end can execute S502.

[0175] It should be noted that the second information may also include other parameter thresholds. The parameter thresholds of the Fisher information matrix described above are shown for example only. Those skilled in the art will appreciate that other parameter thresholds capable of evaluating the accuracy of measurement results may also be used to determine whether a second perception is required. For example, the second information may include a variance threshold. The receiving end may determine a perception result based on the measurement result of the first perception signal, that is, determine an estimated value of the target's distance or position, and determine the variance of the perception result. If the variance of the perception result is greater than or equal to the variance threshold, the receiving end may determine that a second perception is required and may execute S502. Optionally, in addition to the variance threshold, a peak threshold of the perception result may also be used to determine whether a second perception is required. This will not be described in detail here.

[0176] Optionally, the implementation shown in FIG5 may further include S503.

[0177] S503: The transmitting end sends a second perception signal on a second frequency domain resource.

[0178] Correspondingly, the receiving end receives the second perception signal on the second frequency domain resource.

[0179] In one possible scenario, if the first information includes indication information of the second frequency domain resource, the control end can send the indication information of the second frequency domain resource to the transmitting end, the transmitting end sends the second perception signal on the second frequency domain resource, and the receiving end can receive the second perception signal on the second frequency domain resource.

[0180] In another possible scenario, if the first information includes the range information of the target location or an estimated value of the target location or distance, the control end can determine the second frequency domain resource based on the method shown in the above case 1 or case 2, and send the indication information of the second frequency domain resource to the transmitting end and the receiving end. The transmitting end sends the second perception signal on the second frequency domain resource, and the receiving end can receive the second perception signal on the second frequency domain resource. Optionally, the control end may not send the indication information of the second frequency domain resource to the receiving end, and the receiving end may determine the second frequency domain resource by itself based on the measurement result of the first perception signal. It can be understood that the way the receiving end determines the second frequency domain resource needs to be the same as the way the control end determines the second frequency domain resource. That is, if the control end uses case 1 to determine the second frequency domain resource, then the receiving end also needs to use case 1 to determine the second frequency domain resource.

[0181] It should be noted that whether the receiving end adopts case 1 or case 2 to determine the second frequency domain resource can be predefined or preconfigured by the protocol, or can also be instructed by the control end, and this application does not make specific restrictions. When the receiving end adopts case 2 to determine the second frequency domain resource, which Fisher information parameter is used to determine the second frequency domain resource can be predefined or preconfigured by the protocol, or can also be instructed by the control end, and this application does not make specific restrictions.

[0182] Similarly, whether the control end adopts case 1 or case 2 to determine the second frequency domain resource can be predefined or preconfigured by the protocol, or can also be indicated by the receiving end, and this application does not make specific restrictions. In the case where the control end adopts case 2 to determine the second frequency domain resource, which Fisher information parameter is used to determine the second frequency domain resource can be predefined or preconfigured by the protocol, or can also be indicated by the receiving end, and this application does not make specific restrictions.

[0183] For example, the method of determining the second frequency domain resource can be called an optimization criterion, and each optimization criterion has an index. The control end or the receiving end can indicate the optimization criterion by sending the index of the optimization criterion. See Table 1, which shows an index table of an optimization criterion.

[0184] Table 1: Example of an index table for an optimization criterion

[0185] As shown in Table 1, if the control end or the receiving end sends index 1, the second frequency domain resource can be determined in the manner shown in Case 1. If the control end or the receiving end sends index 2, the manner shown in Case 2 can be used, and the second frequency domain resource can be determined by the condition number of the Fisher information matrix, and so on.

[0186] In one example, assuming that the transmitting end is a network device, the processing operation of the network device can be performed by the CU, and the transceiver operation of the network device can be performed by the DU or RU. For example, the DU can receive indication information of the first frequency domain resource, or the RU can receive indication information of the first frequency domain resource and send the indication information of the first frequency domain resource to the DU. The DU can send the indication information of the first frequency domain resource to the CU, and the CU can generate a first perception signal based on the first frequency domain resource and send the first perception signal to the DU. The DU can send the first perception signal to the receiving end, or the DU can send the first perception signal to the RU, and the RU can send the first perception signal to the receiving end.

[0187] In one possible scenario, the processing operation of the network device can be performed by the CU-CP, and the transceiver operation of the network device can be performed by the DU or RU. For example, the DU can receive indication information of the first frequency domain resource, or the RU can receive indication information of the first frequency domain resource and send the indication information of the first frequency domain resource to the DU. The DU can send the indication information of the first frequency domain resource to the CU-CP, and the CU-CP can generate a first perception signal based on the first frequency domain resource and send the first perception signal to the DU. The DU can send the first perception signal to the receiving end, or the DU can send the first perception signal to the RU, and the RU can send the first perception signal to the receiving end.

[0188] In another example, assuming the receiving end is a network device, the processing operations of the network device can be performed by the CU, and the transceiver operations of the network device can be performed by the DU or RU. For example, the DU can receive the first perception signal, or the RU can receive the first perception signal and send the first perception signal to the DU. The DU can send the first perception signal to the CU, and the CU can determine the measurement result of the first perception signal and generate first information. The CU can send the first information to the DU, and the DU can send the first information to the control end, or the DU can send the first information to the RU, and the RU can send the first information to the control end.

[0189] In one possible scenario, the processing operation of the network device can be performed by the CU-CP, and the transceiver operation of the network device can be performed by the DU or RU. For example, the DU can receive the first perception signal, or the RU can receive the first perception signal and send the first perception signal to the DU. The DU can send the first perception signal to the CU-CP, and the CU-CP can determine the measurement result of the first perception signal and generate the first information. The CU-CP can send the first information to the DU, and the DU can send the first information to the control end, or the DU can send the first information to the RU, and the RU can send the first information to the control end.

[0190] In another example, assuming that the control end is a network device, the processing operation of the network device can be performed by the CU, and the transceiver operation of the network device can be performed by the DU or the RU. For example, the DU can receive the first information, or the RU can receive the first information and send the first information to the DU. The DU can send the first information to the CU, and the CU can determine the second frequency domain resources and generate indication information of the second frequency domain resources. The CU can send the indication information of the second frequency domain resources to the DU, and the DU can send the indication information of the second frequency domain resources to the transmitting end and the receiving end, or the DU can send the indication information of the second frequency domain resources to the RU, and the RU can send the indication information of the second frequency domain resources to the transmitting end and the receiving end.

[0191] In one possible scenario, the processing operation of the network device can be performed by the CU-CP, and the transceiver operation of the network device can be performed by the DU or the RU. For example, the DU can receive the first information, or the RU can receive the first information and send the first information to the DU. The DU can send the first information to the CU-CP, and the CU-CP can determine the second frequency domain resources and generate indication information of the second frequency domain resources. The CU-CP can send the indication information of the second frequency domain resources to the DU, and the DU can send the indication information of the second frequency domain resources to the transmitter and the receiver, or the DU can send the indication information of the second frequency domain resources to the RU, and the RU can send the indication information of the second frequency domain resources to the transmitter and the receiver.

[0192] In the O-RAN scenario, the operations performed by the above CU can be performed by the O-CU, the operations performed by the DU can be performed by the O-DU, the operations performed by the RU can be performed by the O-RU, and the operations performed by the CU-CP can be performed by the O-CU-CP.

[0193] Based on the following embodiments, the communication device provided by the embodiment of the present application is introduced. Figure 8 is a schematic block diagram of a communication device 800 provided by an embodiment of the present application. The communication device 800 can correspond to the functions or steps implemented by the transmitting end or the receiving end in the above-mentioned various method embodiments. The communication device may include a processing unit 810 and a transceiver unit 820. Optionally, it may also include a storage unit, which can be used to store instructions (codes or programs) and / or data. The processing unit 810 and the transceiver unit 820 can be coupled with the storage unit. For example, the processing unit 810 can read the instructions (codes or programs) and / or data in the storage unit to implement the corresponding method. The above-mentioned units can be set independently or partially or fully integrated.

[0194] Optionally, the transceiver unit 820 may include a sending unit and a receiving unit, wherein the sending unit may be used to perform all sending operations performed by the communication device 800, and the receiving unit may be used to perform all receiving operations performed by the communication device 800.

[0195] In some possible implementations, the communication device 800 can implement the behaviors and functions of the transmitter, etc. in the above-mentioned method embodiments. For example, the communication device 800 can be a transmitter, or a component (such as a chip or circuit) used in the transmitter. The transceiver unit 820 can be used to perform all receiving or sending operations performed by the transmitter in the embodiment shown in Figure 5. For example, S501 in the embodiment shown in Figure 5, and / or other processes used to support the technology described herein; wherein the processing unit 810 is used to perform all operations performed by the transmitter in the embodiment shown in Figure 5 except for the transceiver operations.

[0196] For example, the transceiver unit 820 is configured to receive a first perception signal on a first frequency domain resource. The processing unit 810 is configured to generate first information based on a measurement result of the first perception signal. The first information is used to determine a second frequency domain resource, where the second frequency domain resource is determined based on the measurement result of the first perception signal. The transceiver unit 820 is further configured to transmit the first information.

[0197] In some possible implementations, the communication device 800 can implement the behaviors and functions of the receiving end in the above-mentioned method embodiments. For example, the communication device 800 can be a receiving end, or a component (such as a chip or circuit) used in the receiving end. The transceiver unit 820 can be used to perform all receiving or sending operations performed by the receiving end in the embodiment shown in Figure 5. For example, S502 in the embodiment shown in Figure 5, and / or other processes used to support the technology described herein; wherein the processing unit 810 is used to perform all operations performed by the receiving end in the embodiment shown in Figure 5 except for the sending and receiving operations.

[0198] For example, the transceiver unit 820 is configured to transmit a first perception signal on a first frequency domain resource. The transceiver unit 820 is further configured to receive first information, where the first information is used to determine a second frequency domain resource, where the second frequency domain resource is determined based on a measurement result of the first perception signal. The processing unit 810 is configured to determine the second frequency domain resource based on the first information.

[0199] For the operations performed by the processing unit 810 and the transceiver unit 820, reference may be made to the relevant description of the aforementioned method embodiment.

[0200] It should be understood that the processing unit 810 in the embodiment of the present application can be implemented by a processor or a processor-related circuit component, and the transceiver unit 820 can be implemented by a transceiver or a transceiver-related circuit component or a communication interface.

[0201] Based on the same concept, as shown in FIG9 , an embodiment of the present application provides a communication device 900. The communication device 900 includes a processor 910. Optionally, the communication device 900 may further include a memory 920 for storing instructions executed by the processor 910, or storing input data required by the processor 910 to execute instructions, or storing data generated after the processor 910 executes instructions. The processor 910 can implement the method shown in the above method embodiment through the instructions stored in the memory 920.

[0202] Based on the same concept, as shown in Figure 10, an embodiment of the present application provides a communication device 10000, which can be a chip or a chip system. Optionally, in the embodiment of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0203] Communication device 10000 may include at least one processor 1010, coupled to a memory. Optionally, the memory may be located within or outside the device. For example, communication device 10000 may also include at least one memory 1020. Memory 1020 stores the necessary computer programs, configuration information, computer programs or instructions, and / or data for implementing any of the aforementioned embodiments. Processor 1010 may execute the computer programs stored in memory 1020 to perform the method in any of the aforementioned embodiments.

[0204] The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, and is used for information exchange between devices, units, or modules. The processor 1010 may operate in conjunction with the memory 1020. The specific connection medium between the transceiver 1030, the processor 1010, and the memory 1020 is not limited in the embodiments of the present application.

[0205] The communication device 10000 may also include a transceiver 1030, and the communication device 10000 may exchange information with other devices through the transceiver 1030. The transceiver 1030 may be a circuit, a bus, a transceiver, or any other device that can be used for information exchange, or may be referred to as a signal transceiver unit. As shown in FIG10 , the transceiver 1030 includes a transmitter 1031, a receiver 1032, and an antenna 1033. In addition, when the communication device 10000 is a chip-type device or circuit, the transceiver in the communication device 10000 may also be an input / output circuit and / or a communication interface that can input data (or receive data) and output data (or send data). The processor is an integrated processor or microprocessor or integrated circuit, and the processor can determine output data based on the input data.

[0206] In one possible implementation, the communication device 10000 can be applied to a transmitter. Specifically, the communication device 10000 can be a transmitter or a device capable of supporting the transmitter in implementing the functions of the transmitter in any of the above-mentioned embodiments. The memory 1020 stores the necessary computer programs, computer programs, instructions, and / or data to implement the functions of the communication device in any of the above-mentioned embodiments. The processor 1010 can execute the computer program stored in the memory 1020 to perform the method performed by the transmitter in any of the above-mentioned embodiments.

[0207] In one possible implementation, the communication device 10000 can be applied to a receiving end. Specifically, the communication device 10000 can be a receiving end, or a device capable of supporting the receiving end in implementing the functions of the receiving end in any of the aforementioned embodiments. The memory 1020 stores the necessary computer programs, computer programs, instructions, and / or data for implementing the functions of the receiving end in any of the aforementioned embodiments. The processor 1010 can execute the computer program stored in the memory 1020 to perform the method performed by the receiving end in any of the aforementioned embodiments.

[0208] Since the communication device 10000 provided in this embodiment can be applied to a transmitting end to implement the method executed by the transmitting end, or can be applied to a receiving end to implement the method executed by the receiving end, the technical effects that can be obtained can be referred to the above method embodiments and will not be repeated here.

[0209] In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0210] In an embodiment of the present application, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM). The memory may also be any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory in an embodiment of the present application may also be a circuit or any other device that can implement a storage function, for storing computer programs, computer programs or instructions and / or data.

[0211] Based on the above embodiments, referring to FIG11 , an embodiment of the present application also provides another communication device 1100, including: an input / output interface 1110 and a logic circuit 1120; the input / output interface 1110 is used to receive code instructions and transmit them to the logic circuit 1120; the logic circuit 1120 is used to run code instructions to execute the method executed by the transmitter or the receiver in any of the above embodiments.

[0212] Optionally, the input / output interface 1110 may be an interface on a chip, and the logic circuit 1120 may be one or more processors. Optionally, the one or more processors may be located inside or outside the device.

[0213] The following describes in detail the operations performed by the communication device when applied to a transmitting end or a receiving end.

[0214] In an optional implementation, the communication device 1100 may be applied to a transmitter to execute the method executed by the aforementioned transmitter, for example, the method executed by the transmitter in the embodiment shown in FIG. 5 .

[0215] For example, input / output interface 1110 is configured to receive a first perception signal on a first frequency domain resource. Logic circuit 1120 is configured to generate first information based on a measurement result of the first perception signal. The first information is used to determine a second frequency domain resource, where the second frequency domain resource is determined based on the measurement result of the first perception signal. Input / output interface 1110 is also configured to transmit the first information.

[0216] Since the communication device 1100 provided in this embodiment can be applied to a transmitter to implement the method performed by the transmitter, the technical effects that can be obtained can be referred to the above method embodiments and will not be described in detail here.

[0217] In an optional implementation, the communication device 1100 may be applied to a receiving end to execute the method executed by the aforementioned receiving end, for example, the method executed by the receiving end in the embodiment shown in FIG. 5 .

[0218] For example, input / output interface 1110 is configured to transmit a first perception signal on a first frequency domain resource. Input / output interface 1110 is further configured to receive first information, where the first information is used to determine a second frequency domain resource, where the second frequency domain resource is determined based on a measurement result of the first perception signal. Logic circuit 1120 is configured to determine the second frequency domain resource based on the first information.

[0219] Since the communication device 1100 provided in this embodiment can be applied to a receiving end to implement the above-mentioned method executed by the receiving end, the technical effects that can be obtained can be referred to the above-mentioned method embodiment and will not be described in detail here.

[0220] Based on the above embodiments, embodiments of the present application further provide a communication system. The communication system includes at least one communication device applied to a transmitting end and at least one communication device applied to a receiving end. The technical effects achievable can be referenced with reference to the above method embodiments and will not be further described here.

[0221] Based on the above embodiments, the present application also provides a system. The communication system includes at least one receiving end and a transmitting end.

[0222] Based on the above embodiments, embodiments of the present application further provide a computer-readable storage medium storing a computer program or instructions. When the instructions are executed, the method executed by the transmitting end or the method executed by the receiving end in any of the above embodiments is implemented. The computer-readable storage medium may include various media capable of storing program code, such as a USB flash drive, a mobile hard drive, a read-only memory, a random access memory, a magnetic disk, or an optical disk.

[0223] To implement the functions of the communication devices shown in Figures 8 to 11 , embodiments of the present application further provide a chip including a processor for supporting the communication device in implementing the functions of the transmitter or receiver in the above method embodiments. In one possible design, the chip is connected to or includes a memory, which is used to store computer programs, instructions, and data necessary for the communication device.

[0224] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0225] The present application is described with reference to the flow chart and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present application. It should be understood that each flow process and / or box in the flow chart and / or block diagram and the combination of the flow process and / or box in the flow chart and / or block diagram can be realized by a computer program or instruction. These computer programs or instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processing machine or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one flow chart flow or multiple flows and / or one box or multiple boxes of the block diagram.

[0226] These computer programs or instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0227] These computer programs or instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0228] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the scope of the embodiments of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A sensing method, characterized in that: include: Receiving a first perception signal on a first frequency domain resource; Based on the measurement result of the first perception signal, first information is sent, where the first information is used to determine second frequency domain resources, and the second frequency domain resources are determined according to the measurement result of the first perception signal.

2. The method according to claim 1, characterized in that Also includes: Based on the second frequency domain resources, a second perception signal is received.

3. The method according to claim 1 or 2, characterized in that: Also includes: receiving second information, wherein the second information is used to evaluate the accuracy of the measurement result; The sending, based on the measurement result of the first perception signal, indication information of the second frequency domain resource includes: The first information is sent based on a measurement result of the first perception signal and the second information.

4. The method according to any one of claims 1 to 3, characterized in that: The first information includes range information of the target location or an estimated value of the target location or distance, where the estimated value is obtained based on a measurement result of the first perception signal; or the first information includes indication information of the second frequency domain resource.

5. The method according to any one of claims 1 to 4, characterized in that: The second frequency domain resources and the first frequency domain resources are located in the same frequency band and are continuous in the frequency domain; or, the second frequency domain resources and the first frequency domain resources are located in the same frequency band and are discontinuous in the frequency domain; or, the second frequency domain resources and the first frequency domain resources are located in different frequency bands and are discontinuous in the frequency domain.

6. The method according to any one of claims 1 to 5, characterized in that: The first frequency domain resources include frequency domain resources of a first frequency band and / or frequency domain resources of a second frequency band; the first frequency band and the second frequency band are different.

7. The method according to any one of claims 1 to 6, characterized in that: Before receiving the first perception signal on the first frequency domain resource, the method further includes: receiving a request message, the request message being used to request sensing capability information, the sensing capability information including a supported frequency band and a supported bandwidth; The sensing capability information is sent.

8. The method according to any one of claims 1 to 7, characterized in that: The second frequency domain resources are determined according to a column correlation between the first perception signal and the second perception signal, or the second frequency domain resources are determined according to a Fisher information matrix of a measurement result of the first perception signal.

9. The method according to claim 8, characterized in that The second frequency domain resource satisfies one or more of the following: Minimize a column correlation matrix of a measurement result of the first perception signal and a measurement result of the second perception signal; and carry the second perception signal on the second frequency domain resource; or Minimizing the condition number of the Fisher information matrix; or Minimize the sum of the inverse eigenvalues ​​of the Fisher information matrix; or Maximizing the determinant of the Fisher information matrix; or Maximizing the minimum eigenvalue of the Fisher information matrix; or Minimize the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix.

10. The method according to claim 3, characterized in that: The second information includes one or more of the following: The condition number threshold of the Fisher information matrix, the determinant threshold of the Fisher information matrix, the sum threshold of the inverse eigenvalues ​​of the Fisher information matrix, the minimum eigenvalue threshold of the Fisher information matrix, or the maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

11. The method according to claim 10, characterized in that The sending the first information based on the measurement result of the first perception signal and the first information includes: Determining a Fisher information matrix of the measurement result based on the measurement result of the first perception signal; The first information is sent when the condition number of the Fisher information matrix is ​​greater than or equal to the condition number threshold of the Fisher information matrix; or, the first information is sent when the determinant of the Fisher information matrix is ​​less than or equal to the determinant threshold of the Fisher information matrix; or, the first information is sent when the sum of the inverses of the eigenvalues ​​of the Fisher information matrix is ​​greater than or equal to the sum of the inverses of the eigenvalues ​​of the Fisher information matrix; or, the first information is sent when the minimum eigenvalue of the Fisher information matrix is ​​less than or equal to the minimum eigenvalue threshold of the Fisher information matrix; or, the first information is sent when the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix is ​​greater than or equal to the maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

12. A sensing method, characterized in that: include: Sending a first perception signal on a first frequency domain resource; First information is received, where the first information is used to determine second frequency domain resources, where the second frequency domain resources are determined according to a measurement result of the first perception signal.

13. The method according to claim 12, characterized in that Also includes: Based on the second frequency domain resources, a second perception signal is sent.

14. The method according to claim 12 or 13, characterized in that Also includes: sending second information, wherein the second information is used to evaluate the accuracy of the measurement result; The first information is sent based on a measurement result of the first perception signal and the second information.

15. The method according to any one of claims 12 to 14, characterized in that: The first information includes range information of the target location or an estimated value of the target location or distance, where the estimated value is obtained based on a measurement result of the first perception signal, or the first information includes indication information of the second frequency domain resource.

16. The method according to any one of claims 12 to 15, characterized in that: The second frequency domain resources and the first frequency domain resources are located in the same frequency band and are continuous in the frequency domain; or, the second frequency domain resources and the first frequency domain resources are located in the same frequency band and are discontinuous in the frequency domain; or, the second frequency domain resources and the first frequency domain resources are located in different frequency bands and are discontinuous in the frequency domain.

17. The method according to any one of claims 12 to 16, characterized in that: The first frequency domain resources include frequency domain resources of a first frequency band and / or frequency domain resources of a second frequency band; the first frequency band and the second frequency band are different.

18. The method according to any one of claims 12 to 17, characterized in that: Also includes: Sending a request message, where the request message is used to request sensing capability information, where the sensing capability information includes supported frequency bands and supported bandwidths; The sensory capability information is received.

19. The method according to any one of claims 12 to 18, characterized in that: The second frequency domain resources are determined according to a column correlation of a measurement result of the first perception signal, or the second frequency domain resources are determined according to a Fisher information matrix of the measurement result of the first perception signal.

20. The method according to claim 19, characterized in that The second frequency domain resource satisfies one or more of the following: Minimize a column correlation matrix of a measurement result of the first perception signal and a measurement result of the second perception signal; and carry the second perception signal on the second frequency domain resource; or Minimizing the condition number of the Fisher information matrix; or Minimize the sum of the inverse eigenvalues ​​of the Fisher information matrix; or Maximizing the determinant of the Fisher information matrix; or Maximizing the minimum eigenvalue of the Fisher information matrix; or Minimize the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix.

21. The method according to claim 14, characterized in that The second information includes one or more of the following: The condition number threshold of the Fisher information matrix, the determinant threshold of the Fisher information matrix, the sum threshold of the inverse eigenvalues ​​of the Fisher information matrix, the minimum eigenvalue threshold of the Fisher information matrix, or the maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

22. The method according to claim 21, characterized in that The condition number of the Fisher information matrix of the measurement result of the first perception signal is greater than or equal to the condition number threshold of the Fisher information matrix; or, the determinant of the Fisher information matrix of the measurement result of the first perception signal is less than or equal to the determinant threshold of the Fisher information matrix; or, the sum of the inverses of the eigenvalues ​​of the Fisher information matrix of the measurement result of the first perception signal is greater than or equal to the sum threshold of the inverses of the eigenvalues ​​of the Fisher information matrix; or, the minimum eigenvalue of the Fisher information matrix of the measurement result of the first perception signal is less than or equal to the minimum eigenvalue threshold of the Fisher information matrix; or, the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix of the measurement result of the first perception signal is greater than or equal to the maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

23. A communication device, characterized in that: include: A transceiver unit, configured to receive a first perception signal on a first frequency domain resource; a processing unit, configured to generate first information based on a measurement result of the first perception signal; wherein the first information is used to determine a second frequency domain resource, and the second frequency domain resource is determined according to the measurement result of the first perception signal; The transceiver unit is further used to send the first information.

24. The device according to claim 23, characterized in that The transceiver unit is further used for: Based on the second frequency domain resources, a second perception signal is received.

25. The device according to claim 23 or 24, characterized in that The transceiver unit is further used for: receiving second information, wherein the second information is used to evaluate the accuracy of the measurement result; The transceiver unit is specifically used for: The first information is sent based on a measurement result of the first perception signal and the second information.

26. The device according to any one of claims 23 to 25, characterized in that: The first information includes range information of the target location or an estimated value of the target location or distance, where the estimated value is obtained based on a measurement result of the first perception signal; or the first information includes indication information of the second frequency domain resource.

27. The device according to any one of claims 23 to 26, characterized in that: The second frequency domain resources and the first frequency domain resources are located in the same frequency band and are continuous in the frequency domain; or, the second frequency domain resources and the first frequency domain resources are located in the same frequency band and are discontinuous in the frequency domain; or, the second frequency domain resources and the first frequency domain resources are located in different frequency bands and are discontinuous in the frequency domain.

28. The device according to any one of claims 23 to 27, characterized in that: The first frequency domain resources include frequency domain resources of a first frequency band and / or frequency domain resources of a second frequency band; the first frequency band and the second frequency band are different.

29. The device according to any one of claims 23 to 28, characterized in that: Before receiving the first perception signal on the first frequency domain resource, the transceiver unit is further configured to: receiving a request message, the request message being used to request sensing capability information, the sensing capability information including a supported frequency band and a supported bandwidth; The sensing capability information is sent.

30. The device according to any one of claims 23 to 29, characterized in that: The second frequency domain resources are determined according to a column correlation between the first perception signal and the second perception signal, or the second frequency domain resources are determined according to a Fisher information matrix of a measurement result of the first perception signal.

31. The device according to claim 30, characterized in that The second frequency domain resource satisfies one or more of the following: Minimize a column correlation matrix of a measurement result of the first perception signal and a measurement result of the second perception signal; and carry the second perception signal on the second frequency domain resource; or Minimizing the condition number of the Fisher information matrix; or Minimize the sum of the inverse eigenvalues ​​of the Fisher information matrix; or Maximizing the determinant of the Fisher information matrix; or Maximizing the minimum eigenvalue of the Fisher information matrix; or Minimize the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix.

32. The device according to claim 25, characterized in that The second information includes one or more of the following: The condition number threshold of the Fisher information matrix, the determinant threshold of the Fisher information matrix, the sum threshold of the inverse eigenvalues ​​of the Fisher information matrix, the minimum eigenvalue threshold of the Fisher information matrix, or the maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

33. The device according to claim 32, characterized in that The processing unit is further used for: Determining a Fisher information matrix of the measurement result based on the measurement result of the first perception signal; The transceiver unit is specifically used for: When the condition number of the Fisher information matrix is ​​greater than or equal to the condition number threshold of the Fisher information matrix, the first information is sent; or, when the determinant of the Fisher information matrix is ​​less than or equal to the determinant threshold of the Fisher information matrix, the first information is sent; or, when the sum of the inverses of the eigenvalues ​​of the Fisher information matrix is ​​greater than or equal to the sum of the inverses of the eigenvalues ​​of the Fisher information matrix, the first information is sent; or, when the minimum eigenvalue of the Fisher information matrix is ​​less than or equal to the minimum eigenvalue threshold of the Fisher information matrix, the first information is sent; Alternatively, the first information is sent when the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix is ​​greater than or equal to a threshold value of the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix.

34. A communication device, characterized in that: include: A transceiver unit, configured to send a first perception signal on a first frequency domain resource; The transceiver unit is further used to receive first information, where the first information is used to determine a second frequency domain resource, where the second frequency domain resource is determined according to a measurement result of the first perception signal; A processing unit is used to determine the second frequency domain resources based on the first information.

35. The device according to claim 34, characterized in that The transceiver unit is further used for: Based on the second frequency domain resources, a second perception signal is sent.

36. The device according to claim 34 or 35, characterized in that The transceiver unit is further used for: Sending second information, where the second information is used to evaluate the accuracy of the measurement result; the first information is sent based on the measurement result of the first perception signal and the second information.

37. The device according to any one of claims 34 to 36, characterized in that: The first information includes range information of the target location or an estimated value of the target location or distance, where the estimated value is obtained based on a measurement result of the first perception signal, or the first information includes indication information of the second frequency domain resource.

38. The device according to any one of claims 34 to 37, characterized in that: The second frequency domain resources and the first frequency domain resources are located in the same frequency band and are continuous in the frequency domain; or, the second frequency domain resources and the first frequency domain resources are located in the same frequency band and are discontinuous in the frequency domain; or, the second frequency domain resources and the first frequency domain resources are located in different frequency bands and are discontinuous in the frequency domain.

39. The device according to any one of claims 34 to 38, characterized in that: The first frequency domain resources include frequency domain resources of a first frequency band and / or frequency domain resources of a second frequency band; the first frequency band and the second frequency band are different.

40. The device according to any one of claims 34 to 39, characterized in that: The transceiver unit is further used for: Sending a request message, where the request message is used to request sensing capability information, where the sensing capability information includes supported frequency bands and supported bandwidths; The sensory capability information is received.

41. The device according to any one of claims 34 to 40, characterized in that The second frequency domain resources are determined according to a column correlation of a measurement result of the first perception signal, or the second frequency domain resources are determined according to a Fisher information matrix of the measurement result of the first perception signal.

42. The device according to claim 41, characterized in that The second frequency domain resource satisfies one or more of the following: Minimize a column correlation matrix of a measurement result of the first perception signal and a measurement result of the second perception signal; and carry the second perception signal on the second frequency domain resource; or Minimizing the condition number of the Fisher information matrix; or Minimize the sum of the inverse eigenvalues ​​of the Fisher information matrix; or Maximizing the determinant of the Fisher information matrix; or Maximizing the minimum eigenvalue of the Fisher information matrix; or Minimize the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix.

43. The device according to claim 36, characterized in that The second information includes one or more of the following: The condition number threshold of the Fisher information matrix, the determinant threshold of the Fisher information matrix, the sum threshold of the inverse eigenvalues ​​of the Fisher information matrix, the minimum eigenvalue threshold of the Fisher information matrix, or the maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

44. The device according to claim 43, characterized in that The condition number of the Fisher information matrix of the measurement result of the first perception signal is greater than or equal to the condition number threshold of the Fisher information matrix; or, the determinant of the Fisher information matrix of the measurement result of the first perception signal is less than or equal to the determinant threshold of the Fisher information matrix; or, the sum of the inverses of the eigenvalues ​​of the Fisher information matrix of the measurement result of the first perception signal is greater than or equal to the sum threshold of the inverses of the eigenvalues ​​of the Fisher information matrix; or, the minimum eigenvalue of the Fisher information matrix of the measurement result of the first perception signal is less than or equal to the minimum eigenvalue threshold of the Fisher information matrix; or, the maximum value of the main diagonal elements of the inverse matrix of the Fisher information matrix of the measurement result of the first perception signal is greater than or equal to the maximum value threshold of the main diagonal elements of the inverse matrix of the Fisher information matrix.

45. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which, when called by an electronic device, enable the electronic device to execute the method as claimed in any one of claims 1 to 11, or enable the electronic device to execute the method as claimed in any one of claims 12 to 22.

46. ​​A communication system, characterized in that: The invention comprises an apparatus for executing the method according to any one of claims 1 to 11 and an apparatus for executing the method according to any one of claims 12 to 22.

47. A chip system, characterized in that: The chip system comprises: Communication interface; A processor, used to call and run the instruction through the communication interface, so that the device equipped with the chip system executes the method as described in any one of claims 1 to 11, or so that the device equipped with the chip system executes the method as described in any one of claims 12 to 22.

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