Sensing resource indication method, sensing apparatus and system

Abstract

A sensing resource indication method, a sensing apparatus and a system, relating to the technical field of sensing. The method comprises: a first apparatus determines a first frequency band and a second frequency band, the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band being determined on the basis of a first condition, and the first frequency band and the second frequency band being used for sensing a plurality of targets; and the first apparatus sends first information to a second apparatus, the first information being used for indicating the first frequency band and the second frequency band. The bandwidths of a plurality of frequency bands used for sensing meet a certain condition, so that when these frequency bands are applied to sensing, the required sensing performance can be obtained. For example, when the sensing resolution is more important, the bandwidths of a plurality of frequency bands can be set to meet the condition of uniform allocation. For another example, when the sidelobe performance is more important, the bandwidths of a plurality of frequency bands can be set to meet the condition of non-uniform allocation.

Description

Perception resource indication method, perception device and system

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on March 29, 2024, with application number 202410386025.3 and application name “Perception Resource Indication Method, Perception Device and System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of perception technology, and more particularly, to a method, communication device, and system for perception resource indication. Background Art

[0003] Wireless sensing technology analyzes changes in wireless signals during propagation to determine the characteristics of the signal propagation space (or channel), enabling scene perception. This scene can include both biological factors (e.g., the presence of living things, their location, posture, and movements), and non-biological factors (e.g., buildings and moving vehicles).

[0004] However, in wireless sensing scenarios, how to use signals from multiple frequency bands to sense multiple targets is an urgent problem to be solved. Summary of the Invention

[0005] The present application provides a perception resource indication method, perception device and system, which can support the perception of multiple targets using signals of multiple frequency bands.

[0006] In a first aspect, a method for indicating a perceived resource is provided. The method can be performed by a first device, or by a component in the first device (e.g., a processor, chip, or chip system), or by a logic module or software that implements all or part of the functionality of the first device. Exemplarily, the first device can be a perception control terminal. For example, the first device can be a network device or a terminal device.

[0007] The method includes: a first device determines a first frequency band and a second frequency band, the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band is determined according to a first condition, and the first frequency band and the second frequency band are used to perceive multiple targets; the first device sends first information to the second device, and the first information is used to indicate the first frequency band and the second frequency band.

[0008] Through the above embodiment, the first device can determine multiple frequency bands, which can be used for the perception of multiple targets, thereby supporting the use of multiple frequency bands to perceive multiple targets. In addition, in the scenario of perceiving multiple targets, when the bandwidths of multiple frequency bands are evenly distributed, the perception resolution is better, but the sidelobe performance is poor, and multiple targets are prone to mutual interference. When the bandwidths of multiple frequency bands are unevenly distributed, the sidelobe performance is better, and multiple targets are not prone to mutual interference, but the perception resolution is poor. In an embodiment of the present application, the bandwidths of the multiple frequency bands used for perception meet certain conditions, so that these frequency bands can obtain the required perception performance when applied to perception. For example, when the perception resolution is more important, the bandwidths of the multiple frequency bands can be set to meet the condition of even distribution. For another example, when the sidelobe performance is more important, the bandwidths of the multiple frequency bands can be set to meet the condition of uneven distribution.

[0009] In some implementations, the first condition is associated with the number of the plurality of targets and the distribution range of the plurality of targets.

[0010] Through the above embodiment, the first condition can be associated with the number of targets and the target distribution range. The number of targets and the target distribution range will affect the perception performance of multiple targets. Therefore, using the first frequency band and the second frequency band determined by the first condition in the above embodiment can improve the perception performance of multiple targets.

[0011] In some implementations, the first condition includes: the larger the ratio between the number of the multiple targets and the distribution range of the multiple targets, the larger the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band.

[0012] When the number of targets increases and the target distribution range decreases, achieving better perception performance requires a more uneven distribution of multiple frequency bands. The first and second frequency bands determined according to the first condition in the above embodiment can achieve a more uneven distribution when the ratio between the number of targets and the target distribution range is greater. Therefore, the above embodiment can further improve the perception performance of multiple targets.

[0013] In some implementations, the first condition further includes:

[0014] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Represents the distribution range of the multiple targets, k is a positive real number, and m is a real number.

[0015] According to the above embodiment, the first condition can be determined by a formula. The storage space required by the formula to determine the first condition is small, so the above embodiment can save the storage space of the first device.

[0016] In some implementations, the first condition further includes:

[0017] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Indicates the distribution range of the multiple targets.

[0018] According to the above embodiment, the first condition can be determined by looking up a table. The processing overhead required for determining the first condition by looking up a table is relatively small, so the above embodiment can reduce the processing overhead of the first device.

[0019] In some implementations, the first device determines the first frequency band and the second frequency band, including: the first device determines the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band based on the first condition and the available bandwidth, wherein the available bandwidth is determined based on the capabilities supported by the transmitter and receiver of the perception signal.

[0020] Through the above embodiment, when determining the first frequency band and the second frequency band, the first device can also consider the available bandwidth determined by the capabilities supported by the transmitter and receiver of the perception signal, so that the first frequency band and the second frequency band meet the capabilities of the transmitter and receiver of the perception signal, thereby ensuring the smooth progress of perception.

[0021] In some implementations, the first information is used to indicate an index of the first frequency band and / or an index of the second frequency band.

[0022] Through the above embodiment, the first information can indicate an index with a smaller data volume, so that the second device can determine the first frequency band and the second frequency band according to the index, thereby reducing the resource overhead of transmitting information indicating the first frequency band and the second frequency band.

[0023] In some implementations, the first information is used to indicate a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band.

[0024] Through the above embodiment, the first information can indicate the bandwidth ratio with smaller data volume, so that the second device can determine the first frequency band and the second frequency band according to the bandwidth ratio, thereby reducing the resource overhead of transmitting information indicating the first frequency band and the second frequency band.

[0025] In some implementations, the first information is further used to indicate the interval between the first frequency band and the second frequency band, and / or the first information is further used to indicate the frequency of the first frequency band and / or the frequency of the second frequency band.

[0026] In some implementations, the first frequency band includes at least one first component carrier (CC), and the second frequency band includes at least one second CC.

[0027] In some implementations, the ratio of the sum of the bandwidths of the at least one first CC to the sum of the bandwidths of the at least one second CC is determined according to the first condition.

[0028] In some implementations, the first information is used to indicate the at least one first CC and the at least one second CC.

[0029] In a second aspect, a method for indicating perceived resources is provided. The method can be performed by a second device, or by a component in the second device (e.g., a processor, chip, or chip system), or by a logic module or software that implements all or part of the functionality of the second device. For example, the second device can be a perceived controlled terminal. For example, the second device can be a network device or a terminal device.

[0030] The method includes: a second device receives first information from a first device, the first information is used to indicate a first frequency band and a second frequency band, and the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band is determined according to a first condition; the second device perceives multiple targets based on the first frequency band and the second frequency band.

[0031] In some implementations, the first condition is associated with the number of the plurality of targets and the distribution range of the plurality of targets.

[0032] In some implementations, the first condition includes: the larger the ratio between the number of the multiple targets and the distribution range of the multiple targets, the larger the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band.

[0033] In some implementations, the first condition further includes:

[0034] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Represents the distribution range of the multiple targets, k is a positive real number, and m is a real number.

[0035] In some implementations, the first condition further includes:

[0036] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Indicates the distribution range of the multiple targets.

[0037] In some implementations, a ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band is determined based on the first condition and an available bandwidth, wherein the available bandwidth is determined based on capabilities supported by a transmitter and a receiver of the perception signal.

[0038] In some implementations, the first information is used to indicate an index of the first frequency band and / or an index of the second frequency band.

[0039] In some implementations, the first information is used to indicate a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band.

[0040] In some implementations, the first information is further used to indicate the interval between the first frequency band and the second frequency band, and / or the first information is further used to indicate the frequency of the first frequency band and / or the frequency of the second frequency band.

[0041] In some implementations, the first frequency band includes at least one first CC, and the second frequency band includes at least one second CC.

[0042] In some implementations, the ratio of the sum of the bandwidths of the at least one first CC to the sum of the bandwidths of the at least one second CC is determined according to the first condition.

[0043] In some implementations, the first information is used to indicate the at least one first CC and the at least one second CC.

[0044] In the third aspect, a perception device is provided, comprising a processing circuit (or processor) and an input / output interface (also referred to as an interface circuit), the input / output interface being used to input and / or output signals, the processing circuit being used to execute the first aspect and any possible method of the first aspect, or the processing circuit being used to execute the second aspect and any possible method of the second aspect.

[0045] In some implementations, the processing circuit is used to communicate with other devices through the interface circuit and execute the above-mentioned first aspect and any possible method of the first aspect, or execute the second aspect and any possible method of the second aspect.

[0046] In a fourth aspect, a sensing device is provided, which may include a device or module for performing the function of the sensing device.

[0047] In some implementations, the sensing device may include a module or unit corresponding to each of the methods / operations / steps / actions described in the first aspect and any possible implementation of the first aspect. The module or unit may be a hardware circuit, software, or a combination of hardware circuit and software.

[0048] In some implementations, the first device includes a processing unit and a transceiver unit. The processing unit may be configured to determine a first frequency band and a second frequency band, wherein a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band is determined based on a first condition, and the first frequency band and the second frequency band are used to sense multiple targets. The transceiver unit may be configured to send first information indicating the first frequency band and the second frequency band.

[0049] In some implementations, the first condition is associated with the number of the plurality of targets and the distribution range of the plurality of targets.

[0050] In some implementations, the first condition includes: the larger the ratio between the number of the multiple targets and the distribution range of the multiple targets, the larger the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band.

[0051] In some implementations, the first condition further includes:

[0052] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Represents the distribution range of the multiple targets, k is a positive real number, and m is a real number.

[0053] In some implementations, the first condition further includes:

[0054] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Indicates the distribution range of the multiple targets.

[0055] In some implementations, the processing device is specifically used to: determine the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band based on the first condition and the available bandwidth, wherein the available bandwidth is determined based on the capabilities supported by the transmitter and receiver of the perception signal.

[0056] In some implementations, the first information is used to indicate an index of the first frequency band and / or an index of the second frequency band.

[0057] In some implementations, the first information is used to indicate a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band.

[0058] In some implementations, the first information is further used to indicate the interval between the first frequency band and the second frequency band, and / or the first information is further used to indicate the frequency of the first frequency band and / or the frequency of the second frequency band.

[0059] In some implementations, the first frequency band includes at least one first CC, and the second frequency band includes at least one second CC.

[0060] In some implementations, the ratio of the sum of the bandwidths of the at least one first CC to the sum of the bandwidths of the at least one second CC is determined according to the first condition.

[0061] In some implementations, the first information is used to indicate the at least one first CC and the at least one second CC.

[0062] In some implementations, the sensing device may include a module or unit corresponding to the method / operation / step / action described in the second aspect and any possible implementation of the second aspect. The module or unit may be a hardware circuit, software, or a combination of hardware circuit and software.

[0063] In some implementations, the second device includes a transceiver unit and a processing unit. The transceiver unit may be configured to receive first information indicating a first frequency band and a second frequency band, wherein a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band is determined based on a first condition. The processing unit may be configured to sense multiple targets based on the first frequency band and the second frequency band.

[0064] In some implementations, the first condition is associated with the number of the plurality of targets and the distribution range of the plurality of targets.

[0065] In some implementations, the first condition includes: the larger the ratio between the number of the multiple targets and the distribution range of the multiple targets, the larger the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band.

[0066] In some implementations, the first condition further includes:

[0067] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, targetnum Indicates the number of multiple targets, range max Represents the distribution range of the multiple targets, k is a positive real number, and m is a real number.

[0068] In some implementations, the first condition further includes:

[0069] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Indicates the distribution range of the multiple targets.

[0070] In some implementations, a ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band is determined based on the first condition and an available bandwidth, wherein the available bandwidth is determined based on capabilities supported by a transmitter and a receiver of the perception signal.

[0071] In some implementations, the first information is used to indicate an index of the first frequency band and / or an index of the second frequency band.

[0072] In some implementations, the first information is used to indicate a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band.

[0073] In some implementations, the first information is further used to indicate the interval between the first frequency band and the second frequency band, and / or the first information is further used to indicate the frequency of the first frequency band and / or the frequency of the second frequency band.

[0074] In some implementations, the first frequency band includes at least one first CC, and the second frequency band includes at least one second CC.

[0075] In some implementations, the ratio of the sum of the bandwidths of the at least one first CC to the sum of the bandwidths of the at least one second CC is determined according to the first condition.

[0076] In some implementations, the first information is used to indicate the at least one first CC and the at least one second CC.

[0077] In a fifth aspect, a computer-readable storage medium is provided, on which a computer program or instruction is stored. When the computer program or the instruction is run on a computer, the first aspect and any possible method of the first aspect are executed, or the second aspect and any possible method of the second aspect are executed.

[0078] In the sixth aspect, a computer program product is provided, comprising a computer program or instructions, which, when run on a computer, causes the first aspect and any possible method of the first aspect to be executed (or implemented), or causes the second aspect and any possible method of the second aspect to be executed (or implemented).

[0079] In the seventh aspect, a perception device is provided, comprising a processor, for causing the device to execute any possible method of the first aspect mentioned above, or causing the device to execute any possible method of the second aspect mentioned above, by executing a computer program (or computer executable instructions) stored in a memory, and / or through a logic circuit.

[0080] In one possible implementation, the device further includes a memory. In another possible implementation, the processor and the memory are integrated together. In another possible implementation, the memory is located outside the sensing device. The processor may include one or more.

[0081] In one possible implementation, the sensing device further includes a communication interface for transmitting information between the sensing device and other devices, such as sending or receiving data and / or signals. Exemplarily, the communication interface can be a transceiver, circuit, bus, module, or other type of communication interface.

[0082] In one implementation, the sensing device of the third aspect, fourth aspect or seventh aspect may be a chip or a chip system.

[0083] In an eighth aspect, a chip is provided, comprising a processor for calling a computer program or computer instruction in a memory so that the processor executes any one of the implementation methods of the above-mentioned first aspect, or so that the processor executes any one of the implementation methods of the above-mentioned second aspect.

[0084] In some implementations, the processor is coupled to the memory through an interface.

[0085] In the ninth aspect, a perception system is provided, comprising a first device and a second device, wherein the first device is used to execute the above-mentioned first aspect and any possible implementation method of the first aspect, and the second device is used to execute the above-mentioned second aspect and any possible implementation method of the second aspect.

[0086] The description of the advantageous effects of any of the second to ninth aspects etc. may refer to the description of the advantageous effects of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] FIG1 is a schematic diagram of a communication system.

[0088] Figure 2 is a schematic block diagram of some perception systems.

[0089] FIG3 is a schematic diagram of perceptual ranging.

[0090] FIG4 is a schematic diagram of a multi-band allocation provided in an embodiment of the present application.

[0091] FIG5 is a schematic flowchart of a perception resource indication method provided in an embodiment of the present application.

[0092] FIG6 is a schematic diagram of signal frequency and simulation data provided by an embodiment of the present application.

[0093] FIG7 is a schematic flowchart of another perception resource indication method provided in an embodiment of the present application.

[0094] FIG8 is a schematic flowchart of another perception resource indication method provided in an embodiment of the present application.

[0095] FIG9 is a schematic flowchart of another perception resource indication method provided in an embodiment of the present application.

[0096] FIG10 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0097] FIG11 is a schematic block diagram of another communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0098] The technical solution in this application will be described below with reference to the accompanying drawings.

[0099] This application will present various aspects, embodiments, or features in the context of systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that each system may include additional devices, components, modules, etc., and / or may not include all of the devices, components, modules, etc. discussed in conjunction with the figures. Furthermore, combinations of these aspects may also be used.

[0100] Additionally, in the embodiments of this application, words such as "exemplary" and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of the word "exemplary" is intended to present concepts in a concrete manner.

[0101] The business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field will know that with the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0102] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically stated. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically stated.

[0103] The first, second, etc. descriptions appearing in the embodiments of this application are only used for illustration and distinction of the description objects. There is no order, nor does it indicate a special limitation on the number in the embodiments of this application, and cannot constitute any limitation on the embodiments of this application.

[0104] It should be understood that in the various embodiments of the present application, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0105] It should be understood that the term "and / or" in this document simply describes an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0106] The technical solutions of the embodiments of the present application can be applied to various communication systems, including but not limited to: Long Term Evolution (LTE) system, New Radio (NR) system and other fifth generation (5G) systems. th generation (5G) mobile communication systems, narrowband internet of things (NB-IoT) systems, enhanced machine-type communication (eMTC) systems, enhanced mobile broadband (eMBB) systems, ultra-reliable low latency communications (URLLC) systems, satellite communication systems, LTE-machine-to-machine (LTE-M) systems, or sixth generation (6 thgeneration, 6G) mobile communication systems and other systems that have evolved after 5G.

[0107] It should be noted that in the embodiments of this application, the term "communication" can also be described as "data transmission," "signal transmission," "information transmission," or "transmission." In the embodiments of this application, transmission can include sending or receiving. For example, transmission can be uplink transmission, such as a terminal device sending a signal to a network device; transmission can also be downlink transmission, such as a network device sending a signal to a terminal device.

[0108] Figure 1 is a schematic diagram of a communication system 100. As shown in Figure 1 , the communication system 100 includes a radio access network 110 and a core network 120. Optionally, the communication system 100 may also include the Internet 130. The radio access network 110 may include at least one network device (such as 111a and 111b in Figure 1 ) and at least one terminal device (such as 112a-112j in Figure 1 ). The terminal device is wirelessly connected to the network device. The network device is wirelessly or wiredly connected to the core network 120. The core network 120 may include one or more core network devices. The core network devices and the network devices may be independent, distinct physical devices, or they may integrate the functions of the core network device and the logical functions of the network device into the same physical device. Alternatively, a single physical device may integrate some of the functions of the core network device and some of the functions of the network device. Terminal devices and network devices may be connected to each other via wired or wireless connections. Terminal devices, network devices, and terminal devices may communicate wirelessly using air interface resources. Exemplarily, air interface resources may include at least one of time domain resources, frequency domain resources, code resources, and space resources. It should be noted that FIG1 is merely a schematic diagram, and the communication system 100 may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG1 .

[0109] A network device may be any device with wireless transceiver functions. For example, a network device may be a base station for accessing a terminal device to a radio access network (RAN). A network device may sometimes also be referred to as an access network device or an access network node. It is understandable that in systems using different wireless access technologies, the names of devices with network device functions may be different. For ease of description, the embodiments of the present application will collectively refer to devices that provide wireless communication access functions for terminal devices as base stations. In the embodiments of the present application, network devices include but are not limited to: various forms of macro base stations (111a in Figure 1), micro base stations or indoor stations (111b in Figure 1), pico base stations, small stations, balloon stations, relay stations, access points, etc. Network devices may include evolved node Bs (eNBs or eNodeBs) in LTE, access points (APs) in wireless fidelity (WiFi) systems, wireless relay nodes, wireless backhaul nodes, transmission points (TPs), or transmission reception points (TRPs). They may also include next-generation NodeBs (gNBs) or transmission points (TRPs or TPs) in 5G or 5.5G systems, one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, network nodes constituting a gNB or transmission point, such as a baseband unit (BBU) or distributed unit (DU), and network devices, servers, or vehicle-mounted devices in networks evolved beyond 5G, such as 6G. Network devices may also be modules or units that perform some of the functions of a base station, for example, a centralized unit (CU) or a DU. APs may include WiFi 5, WiFi 6, or future WiFi APs. However, this application is not limited thereto. For example, the AP may also include an ultra wide band (UWB) AP.

[0110] In the embodiments of the present application, the apparatus for implementing the functions of the network device may be the network device, or may be an apparatus capable of supporting the network device in implementing the functions, such as a chip system, which may be installed in the network device. The chip system may be composed of a chip or may include a chip and other discrete components.

[0111] In another possible scenario, multiple network devices collaborate to assist the terminal in achieving wireless access, with different network devices implementing parts of the base station's functionality. For example, the network devices may be a CU, DU, CU-control plane (CP), CU-user plane (UP), or radio unit (RU). The CU and DU may be separate devices or included in the same network element, such as a BBU. The RU may be included in a radio frequency device or radio unit, such as an RRU, active antenna unit (AAU), or remote radio head (RRH).

[0112] 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 (O-RAN) 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 may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The embodiments of this application do not limit the specific technology and specific device form adopted by the network device.

[0113] A terminal device can be a device that provides voice and / or data connectivity to a user; a terminal device can also be a device with wireless connection capabilities. Terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water (such as ships); and can also be deployed in the air (for example, on airplanes, balloons, and satellites). A terminal device can also be called user equipment (UE), access terminal, terminal, subscriber unit (subscriber unit), user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, wireless network device, user agent, or user device. In the embodiments of the present application, the terminal device includes, but is not limited to, a cellular phone, a mobile phone, a wireless data card, a wireless modem, a tablet computer, a laptop computer, a notebook computer, a PDA, a mobile internet device (MID), a computer with wireless transceiver function, a cordless phone, a Session Initiation Protocol (SIP) phone, a smart phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device (handset) with wireless communication function, a computing device or other device connected to a wireless modem, an in-vehicle device (e.g., a car, a bicycle, an electric car, an airplane, a ship, a train, a high-speed train, etc.), a wearable device (e.g., a smart watch, a smart bracelet, a pedometer, smart glasses, etc.), a satellite terminal, a terminal device in the Internet of Things or the Internet of Vehicles, and any form of terminal in a future network, a relay user device, or a terminal in a future-evolved public land mobile network (PLMN), etc.The terminal device may also be a virtual reality (VR) device, an augmented reality (AR) device, a smart point of sale (POS) machine, customer-premises equipment (CPE), a light UE, a reduced capability UE (REDCAP UE), a machine type communication (MTC) terminal, a terminal device in industrial control, a terminal device in self-driving, a terminal device in remote medical, a terminal device in a smart grid, a wireless terminal in transportation safety, a terminal device in a smart city, a terminal device in a smart home, a tactile terminal device, a smart home device (for example, a refrigerator, a television, an air conditioner, an electric meter, etc.), an intelligent robot, a robotic arm, workshop equipment, a wireless terminal in self-driving, or a flying device (for example, an intelligent robot, a hot air balloon, a drone, an airplane), etc. The terminal device may also be a vehicle device, such as a complete vehicle device, an onboard module, an onboard chip, an onboard unit (OBU), or a telematics box (T-BOX). The terminal device may also be other devices with terminal functions, for example, a terminal device may also be a device that functions as a terminal in device-to-device (D2D) communication. The terminal device may also be a terminal in a WiFi system, for example, a UWB terminal, etc. The embodiments of the present application are not limited to terminal devices.

[0114] In the embodiment of the present application, the device for realizing the function of the terminal device may be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip or a chip system, which may be installed in the terminal device. The chip system may be composed of chips, or may include chips and other discrete devices. In the technical solution of the embodiment of the present application, the device for realizing the function of the terminal device is a terminal device, which may also be referred to as a terminal (terminal). The technical solution provided by the embodiment of the present application may be described below by taking the terminal device as a UE as an example. In addition, the terminal device may also be a user end (UE). The UE mentioned in this application may be a user device or a user end.

[0115] The roles of base stations and terminals can be relative. For example, the helicopter or drone 112i in Figure 1 can be configured as a mobile base station. For terminals 112j accessing the wireless access network 110 via 112i, terminal 112i is a base station. However, for base station 111a, 112i is a terminal, meaning that communication between 111a and 112i occurs via a wireless air interface protocol. Of course, communication between 111a and 112i can also occur via a base station-to-base station interface protocol. In this case, 112i is also a base station relative to 111a. Therefore, base stations and terminals can be collectively referred to as communication devices. 111a and 111b in Figure 1 can be referred to as communication devices with base station functionality, and 112a-112j in Figure 1 can be referred to as communication devices with terminal functionality.

[0116] The network device and the terminal device can communicate through a wireless link. The transmission link from the network device to the terminal device can be called a downlink (DL) or a downlink channel, which is used to transmit downlink signals. The transmission link from the terminal device to the network device can be called an uplink (UL) or an uplink channel, which is used to transmit uplink signals. Exemplarily, the network device can send a downlink reference signal, such as a cell-specific reference signal (CRS) and a UE-specific reference signal (UE-specific reference signal), to the terminal device through a downlink channel for measurement of channel state information, data demodulation, beam training, time-frequency parameter tracking, etc. The terminal device can send an uplink reference signal to the network device through an uplink channel for uplink and downlink channel measurement, data demodulation, etc. The network device and the terminal device can also perform downlink data transmission through a downlink channel and uplink data transmission through an uplink channel.

[0117] Wireless communication can also be performed between network devices and other network devices, and between terminal devices and other terminal devices.

[0118] The primary function of a wireless communication system involves information exchange between transceivers. The basic principle of a wireless communication system is that a transmitter transmits a specific waveform signal, which is received by a receiver after passing through a wireless channel. After signal processing, the received waveform signal can be demodulated to reveal the signal transmitted by the transmitter.

[0119] As an example of a perception system, radar can be applied to wireless perception systems. The basic principle of radar is that a transmitter transmits a specific waveform signal, which travels through a wireless channel and is received by a receiver. Signal processing is performed on the combined transmitted and received signals to extract targets of interest (also called perception targets or targets) in the wireless channel.

[0120] From the perspective of the physical processes of emission, transmission, and reception, wireless sensing and wireless communication are very similar. For example, integrated sensing and communication (ISAC) can achieve the integration of wireless communication and sensing technology (for example, using radar for sensing), that is, to achieve simultaneous perception of the surrounding environment while achieving communication.

[0121] It should be noted that the communication system shown in Figure 1 can also be applied to perception scenarios. When applied to perception scenarios, the communication system shown in Figure 1 can also be referred to as a perception system or a communication perception system. For example, the terminal device and network device shown in Figure 1 can perceive a perception target.

[0122] Figure 2 is a schematic block diagram of some perception systems. The dashed line circle represents the perception area. In the perception scenario, the control end can control the perception process, such as determining the frequency of the signal used for perception. The transmitting end can transmit a signal. The signal transmitted by the transmitting end can be received by the receiving end after being reflected by the perception target. The receiving end can process the received signal to obtain a perception result (or perception report). Exemplarily, the perception target may include a car, a bicycle, a drone, etc., but this application is not limited to this, and the perception target may also include other targets.

[0123] As an example, referring to (a) in Figure 2 , a network device (e.g., a BS) can serve as a transmitter and controller, and a terminal device (e.g., a UE) can serve as a receiver. The signal transmitted by the network device (indicated by a solid arrow) is reflected by a sensing target (e.g., a car) and can be received by the terminal device. The terminal device can perform signal processing on the received signal to obtain a sensing result. Optionally, the terminal device can perform signal processing at a processing node. The processing node can be inside or outside the terminal device. For example, the processing node can be in a network device, a core network device, or other device.

[0124] For example, the perception result may include information such as the distance, speed, angle, and strength of the perceived target. The distance of the perceived target may include the distance between the perceived target and the transmitter, the distance between the perceived target and the receiver, or the distance between the perceived target and other targets. The speed of the perceived target may include the linear velocity of the perceived target, or the angular velocity of the perceived target relative to the transmitter, receiver, or other targets. The angle of the perceived target may include the angle of the perceived target relative to the transmitter, receiver, or other targets. The strength of the perceived target may include the mechanical strength of the perceived target, etc.

[0125] As an example, referring to (b) in Figure 2, a terminal device can serve as a transmitter, and a network device can serve as a receiver and controller. The signal transmitted by the terminal device, after being reflected by the sensing target, can be received by the network device. The network device can then process the received signal to obtain a sensing result. Optionally, the network device can perform signal processing at a processing node. The processing node can be internal or external to the network device, for example, in a core network device or other device.

[0126] As an example, referring to (c) in Figure 2, network device #1 can serve as both the transmitter and controller, and network device #2 can serve as the receiver. The signal transmitted by network device #1 is reflected by the sensing target and then received by network device #2. Network device #2 can process the received signal to obtain a sensing result. Optionally, network device #2 can perform signal processing at a processing node. The processing node can be internal or external to network device #2, for example, in network device #1 or a core network device.

[0127] As an example, referring to (d) in Figure 2, terminal device #1 can serve as both the transmitter and controller, and terminal device #2 can serve as the receiver. The signal transmitted by terminal device #1 is reflected by the sensing target and then received by terminal device #2. Terminal device #2 can process the received signal to obtain a sensing result. Optionally, terminal device #2 can perform signal processing at a processing node. The processing node can be internal to terminal device #2 or external to terminal device #2. For example, the processing node can be located in a network device or core network device.

[0128] As an example, referring to (e) in Figure 2, network device #1 can serve as a transmitter, network device #2 can serve as a receiver, and network device #3 can serve as a controller. Network device #3 can send information for controlling the perception process to network device #1 and network device #2, as indicated by the dotted line arrows. The signal transmitted by network device #1 can be received by network device #2 after being reflected by the perception target. Network device #2 can perform signal processing on the received signal to obtain a perception result. Optionally, network device #2 can perform signal processing at a processing node. The processing node can be inside network device #2 or outside network device #2. For example, the processing node can be in network device #1, network device #3, or a core network device.

[0129] As an example, referring to (f) in Figure 2 , a network device can function as a transmitter, receiver, and controller. The signal transmitted by the network device, after being reflected by the sensing target, can be received by the network device. The network device can then process the received signal to obtain a sensing result. Optionally, the network device can perform signal processing at a processing node. This processing node can be internal or external to the network device, for example, in a core network device or other device.

[0130] As an example, referring to (g) in Figure 2 , a terminal device can function as a transmitter, receiver, and controller. The signal transmitted by the terminal device, after being reflected by the sensing target, can be received by the terminal device. The terminal device can process the received signal to obtain a sensing result. Optionally, the terminal device can perform signal processing at a processing node. The processing node can be internal or external to the terminal device, for example, in a network device or core network device.

[0131] Perceptual performance may include perceptual resolution, etc. Perceptual resolution may be related to signal bandwidth. The larger the bandwidth, the smaller the perceptual resolution and the better the perceptual performance.

[0132] Figure 3 is a schematic diagram of perceptual ranging. Perceptual resolution can include example resolution. The following uses perceptual ranging as an example to describe how to calculate distance resolution.

[0133] Perception ranging uses wireless signals to measure the distance from a transmitter to a perceived target and then to a receiver. Depending on whether the receiver and transmitter are co-located, perception ranging can be divided into two modes: dual-base and single-base, as shown in Figure 3 (a) and (b), respectively.

[0134] As shown in Figure 3(a), in bistatic ranging mode, the transmitter and receiver are not in the same location. The distance measured in bistatic ranging mode is the sum of d1 and d2, i.e., distance d = d1 + d2. The corresponding distance resolution of bistatic ranging is c / B, where c represents the speed of light in a vacuum and B represents the signal bandwidth.

[0135] As shown in Figure 3(b), in monostatic ranging mode, the transmitter and receiver are located in the same location, represented by the transmitter / receiver in Figure 3(b). The distance measured in monostatic ranging mode is d. The range resolution corresponding to monostatic ranging is c / 2B, where c represents the speed of light in a vacuum and B represents the signal bandwidth.

[0136] It can be seen that for perception ranging, whether it is dual-base ranging mode or single-base ranging mode, the larger the bandwidth, the smaller the distance resolution value, and thus the stronger the resolution ability, and thus the better the perception performance.

[0137] However, due to factors such as the scarcity of wireless spectrum resources, the spectrum resources used by operators for communications are almost always non-contiguous. That is, the entire spectrum resource is divided into multiple continuous frequency-domain portions, each of which is referred to as an available frequency band. The available frequency bands may not be continuous. For example, in an NR system, the identifier of an available frequency band may be a frequency band number, such as n3 and n5.

[0138] Applying these non-contiguous available frequency bands to sensing scenarios results in non-contiguous available frequency bands within the sensing scenario. Using only one available frequency band for sensing would be difficult to meet sensing performance requirements. For example, insufficient bandwidth in a single available frequency band results in high range resolution and poor resolution.

[0139] In the communication scenario, in order to solve the problem that a single available frequency band cannot meet the communication bandwidth demand, the 3rd Generation Partnership Project (3GPP) rd The 3GPP (3rd Generation Partner Project) introduced carrier aggregation (CA). CA can aggregate multiple contiguous or non-contiguous CCs into a larger bandwidth to meet 3GPP requirements. Two contiguous CCs mean that the two CCs are contiguous in the frequency domain; two non-contiguous CCs mean that the two CCs are discontinuous in the frequency domain, or in other words, there is a gap between the two CCs in the frequency domain. The above-mentioned available frequency band may include one or more CCs.

[0140] CA can aggregate multiple CCs into a larger bandwidth. However, since CA is primarily designed to improve communication throughput, applying it directly to perception presents some challenges. For example, when the total bandwidth of multiple CCs is the same, bandwidth allocation between them does not affect the final communication performance. However, in perception scenarios, different bandwidth allocation methods between CCs can affect perception performance.

[0141] The perception performance also includes the peak-to-side lobe ratio (PSLR), where PSLR can characterize the sidelobe performance. PSLR can be the ratio of the peak intensity of the main lobe of the perception signal to the peak intensity of the sidelobe with the largest peak intensity of the perception signal. The larger the PSLR, the greater the difference between the peak intensity of the main lobe of the perception signal and the peak intensity of the sidelobe. In the scenario of perceiving multiple targets, the larger the PSLR, the less likely the main lobe of the perception signal for one target will be confused by the sidelobe of the perception signal of the neighboring targets of the target, and thus the better it can distinguish different targets, and thus the better the perception performance.

[0142] Figure 4 is a schematic diagram of a multi-band allocation provided by an embodiment of the present application. Referring to Figure 4, the rightward solid arrow represents the frequency, and the further to the right along the arrow, the larger the frequency. Figure 4 shows three frequency bands, namely, frequency band B1, frequency band B2, and the interval between B1 and B2. It should be noted that the frequency bands B1 and B2 shown in Figure 4 may belong to one of the multiple available frequency bands divided by the entire spectrum resources, or may belong to different available frequency bands. For example, frequency bands B1 and B2 may belong to an available frequency band with a frequency band number of n3. For another example, frequency band B1 may belong to an available frequency band with a frequency band number of n3, and frequency band B2 may belong to an available frequency band with a frequency band number of n5.

[0143] Assume that the sum of frequency bands B1 and B2 is a constant. In other words, assume that the sum of frequency bands B1 and B2 is fixed. Alternatively, assume that B = B1 + B2, where B is a constant. For example, B = 200 megahertz (MHz). Assume that the spacing between frequency bands B1 and B2 is a constant, for example, 100 MHz. This results in a full bandwidth of 300 MHz, meaning that the spacing between frequency bands B1 and B2 can also be used for sensing. The following three scenarios are considered.

[0144] Case 1: Bands B1 and B2 are evenly allocated. For example, B1 = B2 = 100 MHz. When simulating signals using the frequency band allocation scheme of Case 1, the PSLR of the ranging response function obtained in Case 1 is -3.5 decibels (dB), while the resolution (i.e., the main lobe width at 3 dB) remains unchanged. In other words, using a signal with evenly allocated bandwidth for perception can achieve the same range resolution as the full bandwidth, but the PSLR level is higher, making it difficult to distinguish adjacent targets in scenarios where multiple targets are being perceived.

[0145] Case 2: Bands B1 and B2 are unevenly allocated, but the degree of unevenness is low. For example, B1 = 150 MHz; B2 = 50 MHz. When simulating the signal using the frequency band allocation method of Case 2, the PSLR of the ranging response function obtained in Case 2 is -5.7 dB compared to the simulation results of the full-bandwidth signal, and the resolution remains unchanged. In other words, using a signal with a relatively uneven bandwidth allocation for perception can achieve the same range resolution as the full bandwidth. The PSLR level is still high, and in scenarios where multiple targets are being perceived, it may be difficult to distinguish adjacent targets. However, compared to Case 1 with uniform allocation, the sidelobe performance of Case 2 is improved.

[0146] Case 3: Frequency bands B1 and B2 are unevenly allocated, and the degree of unevenness is high. For example, B1 = 195 MHz; B2 = 5 MHz. Simulating the signal using the frequency band allocation scheme in Case 2 reveals a PSLR of -12.5 dB compared to the full-bandwidth signal, resulting in poorer resolution. In other words, sensing using a signal with a very uneven bandwidth allocation results in a lower range resolution than the full-bandwidth signal. This lower PSLR makes it easier to distinguish adjacent targets when sensing multiple targets.

[0147] Based on the three scenarios above, it can be seen that evenly distributing the bandwidth of the two frequency bands can maintain good range resolution, but the PSLR level is high and the sidelobe performance is poor. If the two frequency bands are unevenly distributed, the PSLR level can be reduced and the sidelobe performance can be improved, but the range resolution may be lost.

[0148] Therefore, in perception scenarios, how to use signals from multiple frequency bands to perceive multiple targets is an urgent problem to be solved.

[0149] Figure 5 is a schematic flowchart of a sensing resource indication method 500 provided in an embodiment of the present application. Method 500 can support sensing multiple targets using signals in multiple frequency bands. The operations indicated by the dashed lines in Figure 5 represent optional operations in method 500. Method 500 is described below in conjunction with Figure 5.

[0150] S530: The first device determines a first frequency band and a second frequency band.

[0151] Optionally, the first device may be a control end of perception (or referred to as a control node or a control device, etc.). In some possible implementations, the first device may also be a transmitter of a perception signal (or referred to as a transmitting node or a transmitting device, etc.), so that the first device may transmit the perception signal. In other possible implementations, the first device may also be a receiver of a perception signal (or referred to as a receiving node or a receiving device, etc.), so that the first device may receive the perception signal. In yet other possible implementations, the first device is neither a transmitter nor a receiver of a perception signal. In this case, the first device may be regarded as a third-party device other than the transmitter and the receiver.

[0152] Exemplarily, the first device may be a terminal device or a network device, for example, the terminal device or the network device in FIG1 .

[0153] Optionally, the first frequency band may include at least one first CC. Optionally, the second frequency band may include at least one second CC. The first CC here is different from the second CC; the first CC is a CC in the first frequency band, and the second CC is a CC in the second frequency band. If the first frequency band includes multiple first CCs, these first CCs may be continuous or discontinuous. If the second frequency band includes multiple second CCs, these second CCs may be continuous or discontinuous. In some implementations, the ratio of the sum of the bandwidths of the at least one first CC to the sum of the bandwidths of the at least one second CC is determined based on the first condition. In some implementations, the first information is used to indicate the at least one first CC and the at least one second CC. Optionally, the first frequency band may be the first CC, and the second frequency band may be the second CC.

[0154] It should be noted that the first frequency band and the second frequency band may belong to the same available frequency band. For example, the first frequency band and the second frequency band may belong to an available frequency band with a frequency band number of n40, where n40 may be defined in technical specification (TS) 38.101. However, this application is not limited to this. The first frequency band and the second frequency band may also belong to different available frequency bands. For example, the first frequency band may belong to an available frequency band with a frequency band number of n40; the second frequency band may belong to an available frequency band with a frequency band number of n48. In addition, the first frequency band and the second frequency band may also belong to newly defined available frequency bands, for example, available frequency bands defined by the 6G standard.

[0155] This application does not limit the name of the first frequency band, for example, the first frequency band can also be called a perception frequency band or have other names. This application does not limit the name of the second frequency band, for example, the second frequency band can also be called a perception frequency band or have other names.

[0156] Optionally, the first frequency band and the second frequency band are used to sense multiple targets. Optionally, a ratio (or ratio) of a bandwidth of the first frequency band to a bandwidth of the second frequency band is determined according to a first condition.

[0157] It should be noted that the embodiments of the present application are aimed at scenarios with multiple targets. As mentioned above, for scenarios with multiple targets, although uniform distribution can maintain distance resolution, its sidelobe performance is poor; although non-uniform distribution has better sidelobe performance, it may lose distance resolution. The relevant technical solutions are aimed at scenarios with a single target, which are different from the scenarios of the present application. In scenarios with a single target, the sidelobe performance has little impact on the overall perception performance because there is no mutual interference between multiple targets. Therefore, in scenarios with a single target, even if it is necessary to determine the first frequency band and the second frequency band, it is not necessary to require that the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band meet certain conditions.

[0158] Optionally, a target can correspond to a physical entity. For example, a target could be a truck or a basketball. Assigning a target to a physical entity facilitates the process of perceptual ranging. Alternatively, a target can correspond to a range resolution unit. A larger physical entity, such as a truck, can correspond to multiple range resolution units. These range resolution units can be distributed continuously in space. Assigning a target to a range resolution unit allows for more refined analysis of the perception signal, thereby improving the accuracy of the perception results.

[0159] For example, sensing multiple targets may include measuring the distance of each of the multiple targets. By measuring the distance of each of the multiple targets, information such as the distance, speed, angle, or intensity of the multiple targets may be obtained.

[0160] When the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band (hereinafter referred to as the "bandwidth ratio") is greater than 1, the larger the bandwidth ratio, the more uneven the bandwidth allocation between the first and second frequency bands. When the bandwidth ratio is less than 1, the smaller the bandwidth ratio, the more uneven the bandwidth allocation between the first and second frequency bands. When the bandwidth ratio is 1, the bandwidth allocation between the first and second frequency bands is even.

[0161] The first condition can be used to allocate the bandwidth of the first frequency band and the bandwidth of the second frequency band. For example, the first condition may include the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band. In some possible implementations, S530 includes: the first device determines the first frequency band and the second frequency band according to the first condition. It should be noted that the present application does not exclude the scheme of determining the first frequency band and the second frequency band according to the first condition and other conditions. In addition, the embodiment of the present application does not limit the name of the first condition, and the first condition can also be called bandwidth condition, ratio condition, bandwidth ratio condition or have other names. For other descriptions of the first condition, please refer to the following text and will not be repeated here.

[0162] In some possible implementations, determining the first frequency band includes determining both the bandwidth of the first frequency band and the position of the first frequency band in the frequency domain. The position of the first frequency band in the frequency domain can be represented by the start frequency and / or end frequency of the first frequency band in the frequency domain, for example, 3.55 GHz, 3.65 GHz, or 3.55 GHz to 3.65 GHz; or by the center frequency of the first frequency band, for example, 3.6 GHz.

[0163] S540: The first device sends the first information to the second device. Correspondingly, the second device receives the first information from the first device.

[0164] Optionally, the second device may be a controlled side of the perception (or referred to as a controlled device or a controlled node). In some possible implementations, the second device may also be a transmitter of the perception signal. In other possible implementations, the second device may also be a receiver of the perception signal.

[0165] Exemplarily, the first information can be carried in downlink control information (DCI), uplink control information (UCI) or media access control (MAC) control element (CE), but this application is not limited to this, and the first information can also be carried in other messages.

[0166] This application does not limit the name of the first information. The first information may also be called indication information, frequency band indication information, frequency configuration information or have other names.

[0167] Optionally, the first information is used to indicate the first frequency band and the second frequency band. It should be noted that the first information may directly indicate the first frequency band and the second frequency band. For example, the first information may include the starting frequency and ending frequency of the first frequency band, and the first information may also include the starting frequency and ending frequency of the second frequency band. For another example, the first information may include the starting frequency and bandwidth of the first frequency band, and the first information may also include the starting frequency and bandwidth of the second frequency band. In this way, the second device may directly determine the first frequency band and the second frequency band based on the content of the first information. However, this application is not limited to this. For example, the first information may also indirectly indicate the first frequency band and / or the second frequency band. For example, the first information may include the index of the first frequency band and the index of the second frequency band. In this way, the second device may determine the index of the first frequency band and the index of the second frequency band based on the content of the first information, rather than directly determining the first frequency band and the second frequency band. The second device may then determine the first frequency band based on the index of the first frequency band and the second frequency band based on the index of the second frequency band. For other embodiments of how the first information indicates the first frequency band and the second frequency band, please refer to the following text and will not be discussed here.

[0168] In some possible implementations, the method 500 further includes: the second device determining the first frequency band and the second frequency band according to the first information.

[0169] S550: The second device senses multiple targets according to the first frequency band and the second frequency band.

[0170] In some other possible implementations, the above S550 may be replaced by: the second device senses the multiple targets according to the first information. In other words, the second device may sense the multiple targets according to frequency configuration.

[0171] In some possible implementations, when the second device is a transmitter of the perception signal, S550 includes: the second device transmitting the perception signal to the multiple targets respectively on the first frequency band and the second frequency band. In other words, the second device may transmit the perception signal to the multiple targets respectively based on the first information.

[0172] In some other possible implementations, when the second device is the receiving end of the perception signal, S550 includes: the second device receives the perception signal in the first frequency band and the second frequency band. Alternatively, the second device may receive the perception signal based on the first information. The perception signal received by the second device may be a signal reflected by multiple targets. In some possible implementations, S550 includes: the second device processes the received perception signal to obtain a perception result; alternatively, the second device determines the perception result based on the received perception signal. The above-mentioned perception result may be called a multi-band perception result or have other names, and this application does not limit the name of the perception result.

[0173] Through the above embodiment, the first device can determine multiple frequency bands, which can be used for the perception of multiple targets, thereby supporting the use of multiple frequency bands to perceive multiple targets. In addition, in the scenario of perceiving multiple targets, when the bandwidths of multiple frequency bands are evenly distributed, the perception resolution is better, but the sidelobe performance is poor, and multiple targets are prone to mutual interference. When the bandwidths of multiple frequency bands are unevenly distributed, the sidelobe performance is better, and multiple targets are not prone to mutual interference, but the perception resolution is poor. In an embodiment of the present application, the bandwidths of the multiple frequency bands used for perception meet certain conditions, so that these frequency bands can obtain the required perception performance when applied to perception. For example, when the perception resolution is more important, the bandwidths of the multiple frequency bands can be set to meet the condition of even distribution. For another example, when the sidelobe performance is more important, the bandwidths of the multiple frequency bands can be set to meet the condition of uneven distribution.

[0174] The following is a more detailed derivation of the first condition. Based on the multi-objective parameter estimation theory, we obtain Formula 1 as follows.

[0175] Among them, E{} represents the expectation of the variables in “{}”. Parameters θ=[τ1,τ2,…,τ M ] T Represents the multipath delay, where M represents the number of active paths and T represents the transpose of the matrix. Denotes the estimated value of parameter θ. C(θ) denotes the lower bound of the variance of parameter θ. F -1 (θ) represents the inverse matrix of the Fisher information matrix F(θ). The action path may include a reflection path or a diffraction path, etc. The intensities of the M action paths may be the same. More specifically, the Fisher information matrix F(θ) can be expressed by Formula 2.

[0176] Where [F(θ)] ij Represents the element in the i-th row and j-th column of the matrix F(θ), where i is a positive integer less than or equal to the total number of rows of the matrix F(θ), and j is a positive integer less than or equal to the total number of columns of the matrix F(θ). Indicates taking the real part of the number in “[]”. μ y (θ) represents the mean value of the signal y received by the receiving end, and the signal y is related to the parameter θ. Wherein, H represents the conjugate transpose operation of the matrix. Represents the inverse matrix of the variance matrix of the signal y with respect to the parameters θ. represents μ y (θ) versus θ j Find the partial differential. σ 2 Represents the noise power.

[0177] Some parameters in Formula 2 can be expressed according to Formula 3.

[0178] Where A represents the strength of the action path, and it can be assumed that the strength of all action paths is the same. N can represent the number of frequency bands used for sensing. For example, in an orthogonal frequency division multiplexing (OFDM) system, N can represent the number of subcarriers. n Indicates the nth frequency band used for sensing among N frequency bands. For example, in OFDM system, f n It can represent the nth subcarrier among N subcarriers. Those skilled in the art will understand that the frequency of the subcarrier here can be the baseband frequency instead of the radio frequency frequency. p It can represent the delay of the pth action path among M action paths, where p is a positive integer less than or equal to M, and q is a positive integer less than or equal to M.

[0179] Combining Equations 1 to 3, we can calculate the Cramér–Rao lower bound (CRLB) for multiple targets, which is the main diagonal element of C(θ) in Equation 1. Smaller CRLB values ​​indicate better perceptual performance. It is important to note that perceptual performance here includes both perceptual resolution and sidelobe performance. In other words, smaller CRLB values ​​indicate better perceptual performance, which combines both perceptual resolution and sidelobe performance.

[0180] Figure 6 is a schematic diagram of the signal frequency and simulation data provided by the embodiment of the present application. After the signal of a certain frequency band is moved to the baseband, the baseband signal is obtained as shown in Figure 6 (a). The baseband signal is symmetrical about the position of zero frequency (f0=0), that is, the bandwidth on both sides of the zero frequency is The difference from FIG4 is that the interval between the frequency band B1 and the frequency band B2 in FIG6 (a) is not fixed at 100 MHz, but is a variable frequency band B1. s .

[0181] Referring to (a) in FIG6 , the band gap ratio can be expressed as The parameter α can be That is, parameter α can represent the ratio of frequency band B1 to the total frequency band. The total frequency band is the sum of frequency band B1 and frequency band B2. For the sake of simplicity, let us assume that parameter α is between 0 and 0.5. Correspondingly, parameter β can be, The value of parameter β can be 0.5 to 1.

[0182] Fix B1+B2=200MHz, set the parameter α to 0.1, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45 and 0.5, the target distribution range is 100 meters (m), and change the number of different targets to obtain (b) to (e) in Figure 6. Among them, the parameter α is 0.1, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45 and 0.5, and correspondingly, the parameter β is 0.9, 0.8, 0.75, 0.7, 0.65, 0.6, 0.55 and 0.5. Among them, assuming that the sum of the distance between the transmitter and the target and the distance between the target and the receiving device is R1, and assuming that the distance between the transmitter and the receiving device is R2, then the target distribution range can be expressed as the difference between R1 and R2. The target distribution range can also be called the distance distribution range of the target distribution or has other names, which is not limited in this application.

[0183] In Figures 6 (b) through (e), the horizontal axis represents the value of parameter α, and the vertical axis represents the value of CRLB, with the unit of CRLB being seconds (s). It should be noted that when the number of targets ranges from 1 to 60, the CRLB value decreases as the band gap ratio increases. Figures 6 (b) through (e) are schematic diagrams for a band gap ratio of 0.6.

[0184] Figure 6(b) shows a simulation diagram when the number of targets is 1. As shown in Figure 6(b), the CRLB value is lowest when the parameter α is 0.5. Therefore, for a single target, while the total bandwidth (i.e., B1 + B2) remains unchanged, the more evenly the bandwidth is distributed across the two frequency bands, the better the perceptual performance.

[0185] Figure 6(c) shows a simulation plot for 10 targets. As shown in Figure 6(c), when the parameter α is between 0.3 and 0.45, the CRLB value is low. Therefore, for 10 targets, while the total bandwidth (i.e., B1 + B2) remains unchanged, better perception performance is achieved when one of the two frequency bands accounts for 0.3 to 0.45 of the total bandwidth.

[0186] Figure 6(d) shows a simulation plot for 30 targets. As shown in Figure 6(d), when the parameter α is between 0.3 and 0.4, the CRLB value is low. Therefore, for 30 targets, while the total bandwidth (i.e., B1 + B2) remains unchanged, better perception performance is achieved when one of the two frequency bands accounts for 0.3 to 0.4 of the total bandwidth.

[0187] Figure 6(e) shows a simulation plot for 60 targets. As shown in Figure 6(e), when the parameter α is between 0.24 and 0.4, the CRLB value is low. Therefore, for 60 targets, while the total bandwidth (i.e., B1 + B2) remains unchanged, better perception performance is achieved when one of the two frequency bands accounts for 0.24 to 0.4 of the total bandwidth.

[0188] Fixing B1 + B2 = 200 MHz, setting the parameter α to 0.1, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, and 0.5, and the number of targets to 30, and changing the target distribution range, we can obtain Figures 6 (f) to (h). The parameter α is 0.1, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, and 0.5, and the parameter β is 0.9, 0.8, 0.75, 0.7, 0.65, 0.6, 0.55, and 0.5, respectively. The horizontal axis of Figures 6 (f) to (h) is the value of the parameter α, and the vertical axis is the value of the CRLB, with the unit of CRLB being seconds. It should be noted that when the target distribution range is between 50 and 100 meters, the CRLB value decreases as the band gap ratio increases. (f) to (h) in FIG6 are schematic diagrams when the band gap ratio is 0.6.

[0189] Figure 6(f) shows a simulation diagram when the target distribution range is 50 (meters). As can be seen from Figure 6(f), when the parameter α is 0.24 to 0.4, the CRLB value is low. Therefore, for the case where the target distribution range is 50 (meters), when the total bandwidth (i.e., B1+B2) remains unchanged, the perception performance is better when one of the two frequency bands accounts for 0.24 to 0.4 of the total bandwidth. It should be noted that the simulation results of Figure 6(e) are consistent with those of Figure 6(f). The conditions of Figure 6(f) are: the number of targets is 60 and the target distribution range is 100 meters; the conditions of Figure 6(e) are: the number of targets is 30 and the target distribution range is 50 meters. It can be seen that the target density of Figure 6(e) and Figure 6(f) is the same.

[0190] Figure 6(g) shows a simulation plot for a target distribution range of 80 meters. As shown in Figure 6(g), when the parameter α is between 0.27 and 0.4, the CRLB value is low. Therefore, for a target distribution range of 80 meters, with the total bandwidth (i.e., B1 + B2) unchanged, better perception performance is achieved when one of the two frequency bands accounts for 0.27 to 0.4 of the total bandwidth.

[0191] Figure 6(h) shows a simulation plot for a target distribution range of 100 meters. Figure 6(g) shows that when the parameter α is between 0.3 and 0.4, the CRLB value is lower. Therefore, for a target distribution range of 100 meters, and with the total bandwidth (i.e., B1 + B2) unchanged, better perception performance is achieved when one of the two frequency bands accounts for 0.3 to 0.4 of the total bandwidth.

[0192] Therefore, based on the simulation results of Figure 6, we can conclude that within a certain target distribution range, the greater the number of targets, the smaller the target distribution range, the smaller the value of parameter α, and accordingly, the larger the value of parameter β. The simulation of Figure 6 fixed the target distribution range and the number of targets, but those skilled in the art will understand that the increased number of targets and the smaller target distribution range in Figure 6 are essentially an increase in the target density. In other words, Figure 6 shows that the greater the target density, the smaller the value of parameter α, and accordingly, the larger the value of parameter β.

[0193] In some possible implementations, the first condition is associated with the number of the multiple targets and the distribution range of the multiple targets.

[0194] As shown in the simulation diagram of FIG6 , as the density of targets changes, that is, the number of targets and the distribution range of targets change, the proportion of the bandwidth of B1 to the total bandwidth of B1 and B2 also changes. Those skilled in the art will appreciate that the rules governing frequency bands B1 and B2 can also apply to the first and second frequency bands in method 500 . Therefore, the first condition in method 500 can be associated with the number of targets and the distribution range of targets.

[0195] As an example, the first condition may include the above parameter α. The bandwidth of the first frequency band may be represented by B1; the bandwidth of the second frequency band may be represented by B2. The correlation between the parameter α and the number of multiple targets and the distribution range of the multiple targets may be expressed as in Formula 4. α = g(target num ,range max ) (Formula 4)

[0196] Among them, the function g() can represent certain operations on the parameters in the brackets. num Can represent the number of targets, range max It can represent the distribution range of the target.

[0197] As another example, the first condition may include a ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band. For example, parameter γ = B1 / B2. The relationship between parameter γ and the number of multiple targets and the distribution range of the multiple targets can be expressed as formula 4. γ = h(target num ,range max ) (Formula 5)

[0198] Among them, the function h() can represent a certain operation on the parameters in the brackets. Those skilled in the art will understand that the parameters α and γ can be converted to each other, for example, For example, Therefore, based on the equation 4 obtained in FIG6 , the simulation diagram shown in FIG6 can also obtain the equation 5.

[0199] The above uses Formula 4 and Formula 5 as examples to describe the association between the first condition and the number of multiple targets and the distribution range of the multiple targets. However, this application does not limit the association to be in the form of a formula. For example, the above association can also be in the form of a table.

[0200] Optionally, the first condition is determined according to the number of the multiple targets and the distribution range of the multiple targets. In some possible implementations, the method 500 further includes: the first device determines the first condition according to the number of the multiple targets and the distribution range of the multiple targets.

[0201] Through the above embodiment, the first condition can be associated with the number of targets and the target distribution range. The number of targets and the target distribution range will affect the perception performance of multiple targets. Therefore, using the first frequency band and the second frequency band determined by the first condition in the above embodiment can improve the perception performance of multiple targets.

[0202] In some possible implementations, the first condition includes: the greater the ratio between the number of the multiple targets and the distribution range of the multiple targets, the greater the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band.

[0203] Optionally, the bandwidth of the first frequency band is greater than or equal to the bandwidth of the second frequency band. Thus, a larger ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band indicates a more uneven distribution of the bandwidth of the first frequency band and the bandwidth of the second frequency band.

[0204] The larger the ratio between the number of multiple targets and the distribution range of the multiple targets, it can also be expressed as: the larger the number of multiple targets, the smaller the distribution range of the multiple targets; or, the greater the density of the multiple targets; or, when the distribution range of the multiple targets is constant, the larger the number of multiple targets; or, when the number of multiple targets is constant, the distribution range of the multiple targets is smaller.

[0205] The larger the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band, it can also be expressed as: the larger the difference between the bandwidth of the first frequency band and the bandwidth of the second frequency band; or, the larger the absolute value of the difference between the bandwidth of the first frequency band and the bandwidth of the second frequency band; or, the larger the parameter α; or, the smaller the parameter β; or, the larger the difference between the ratio of the bandwidth of the first frequency band and the bandwidth of the second frequency band and 1; or, the larger the absolute value of the difference between the ratio of the bandwidth of the first frequency band and the bandwidth of the second frequency band and 1; or, the more the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band deviates from 1.

[0206] In some other possible implementations, the first condition includes: the smaller the ratio between the number of the multiple targets and the distribution range of the multiple targets, the smaller the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band.

[0207] The smaller the ratio between the number of multiple targets and the distribution range of the multiple targets, it can also be expressed as: the smaller the number of multiple targets, the larger the distribution range of the multiple targets; or, the smaller the density of the multiple targets; or, when the distribution range of the multiple targets is constant, the smaller the number of multiple targets; or, when the number of multiple targets is constant, the distribution range of the multiple targets is larger.

[0208] The smaller the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band, it can also be expressed as: the smaller the difference between the bandwidth of the first frequency band and the bandwidth of the second frequency band; or, the smaller the absolute value of the difference between the bandwidth of the first frequency band and the bandwidth of the second frequency band; or, the smaller the parameter α; or, the larger the parameter β; or, the smaller the difference between the ratio of the bandwidth of the first frequency band and the bandwidth of the second frequency band and 1; or, the smaller the absolute value of the difference between the ratio of the bandwidth of the first frequency band and the bandwidth of the second frequency band and 1; or, the closer the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band is to 1.

[0209] When the number of targets increases and the target distribution range decreases, achieving better perception performance requires a more uneven distribution of multiple frequency bands. The first and second frequency bands determined according to the first condition in the above embodiment can achieve a more uneven distribution when the ratio between the number of targets and the target distribution range is greater. Therefore, the above embodiment can further improve the perception performance of multiple targets.

[0210] In some possible implementations, the first condition further includes Table 1, which is as follows.

[0211] Table 1

[0212] In Table 1, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Indicates the distribution range of the multiple targets.

[0213] In some possible implementations, method 500 further includes: the first device determining parameter α based on the number of the multiple targets and the distribution range of the multiple targets. For example, the first device can determine parameter α by looking up the table according to the above table.

[0214] In some possible implementations, the first condition further includes Table 2, which is as follows.

[0215] Table 2

[0216] In Table 2, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Indicates the distribution range of the multiple targets.

[0217] In some possible implementations, method 500 further includes: the first device determining parameter β based on the number of the multiple targets and the distribution range of the multiple targets. For example, the first device can determine parameter β by looking up the table according to the above table.

[0218] In some other possible implementations, the first condition also includes Table 3, which is as follows.

[0219] Table 3

[0220] In Table 3, γ = B1 / B2, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Indicates the distribution range of the multiple targets.

[0221] In some other possible implementations, method 500 further includes: the first apparatus determining, based on the number of the multiple targets and the distribution range of the multiple targets, a ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band. For example, determining γ in Table 3.

[0222] In some possible implementations, the first condition also includes Table 4, which is as follows.

[0223] Table 4

[0224] In Table 4, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, and target num Indicates the number of multiple targets, range max Indicates the distribution range of the multiple targets.

[0225] In some other possible implementations, method 500 further includes: the first apparatus determining, based on the number of the multiple targets and the distribution range of the multiple targets, a ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band, for example, determining B2 / B1 in Table 4.

[0226] According to the above embodiment, the first condition can be determined by looking up a table. The processing overhead required for determining the first condition by looking up a table is relatively small, so the above embodiment can reduce the processing overhead of the first device.

[0227] In some possible implementations, the first condition also includes Formula 6.

[0228] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Represents the distribution range of the multiple targets, k is a positive real number, and m is a real number.

[0229] For example, the above Table 1 can be determined according to Formula 6. Wherein k can be 0.35, and m can be 0.66. Therefore, the value of the parameter α not shown in the above Table 1 and satisfying the above Formula 6 is also within the scope of the embodiment of the present application. Those skilled in the art can directly and unambiguously expand Table 1 according to Formula 6. In addition, the sum of the parameter β and the corresponding parameter α in Table 2 is 1, so Table 2 can also be expanded according to Formula 6. In addition, the relationship between the parameter γ and the parameter α in Table 3 is Therefore, Table 3 can also be expanded according to Formula 6. In addition, the parameter B2 / B1 and the parameter γ in Table 4 are reciprocals of each other, so Table 4 can also be expanded according to Formula 6.

[0230] In addition, Formula 6 can also be used to calculate parameter γ. For example, according to Formula 6 in this application and the relationship between parameter γ and parameter α, a calculation formula for parameter γ can be obtained. This formula can be used to directly calculate parameter γ based on the number of multiple targets and the distribution range of multiple targets. For another example, according to Formula 6 in this application, parameter α can be calculated, and according to the relationship between parameter γ and parameter α, parameter γ can be further obtained. The method for calculating parameter B2 / B1 according to Formula 6 is similar to the method for calculating parameter γ according to Formula 6 above, and will not be repeated here.

[0231] In some possible implementations, the first condition further includes Formula 7.

[0232] in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of multiple targets, range max Represents the distribution range of the multiple targets, k is a positive real number, and m is a real number.

[0233] In addition, Formula 7 can also be used to calculate the parameter γ and the parameter B2 / B1 in a manner similar to the above-mentioned calculation of the parameter γ and the parameter B2 / B1 according to Formula 6. For example, Formula 7' is as follows.

[0234] According to the above embodiment, the first condition can be determined by a formula. The storage space required by the formula to determine the first condition is small, so the above embodiment can save the storage space of the first device.

[0235] It should be noted that determining the first condition by formula and by table lookup can be used in combination. For example, when the formula calculation is relatively complex, the first condition can be determined by table lookup. For another example, when a table (such as Table 1) does not contain the corresponding target quantity or target distribution range, the first condition can be determined by a formula (such as Formula 6 or Formula 7).

[0236] The following derivation is a generalized form of Formula 6. The derivation of Formula 7 can be found in the following derivation and will not be repeated here.

[0237] The constraint between the product of the side lobe and the target and the distribution range of the target is shown in Formula 8.

[0238] Wherein, sidelobedifference may represent the sidelobe difference between the ranging response functions of multiple frequency bands under non-uniform configuration and the ranging response functions of multiple frequency bands under full bandwidth configuration. For example, the full bandwidth in FIG6 may be B1+B s +B2. The product of sidelobedifference and the number of targets can be understood as the energy leakage of the target relative to the full bandwidth. sidelobedifference×target num Divide by range max It can be understood as the average value k1 of energy leakage over distance.

[0239] Among them, sidelobedifference is related to parameter α, and the relationship between sidelobedifference and parameter α can be expressed by function "t()", thereby obtaining formula 9.

[0240] Formula 6 and Formula 7 can be regarded as a more specific form of Formula 9.

[0241] In some possible implementations, the first condition further includes Formula 9.

[0242] In some possible implementations, S510 includes: the first device determines a ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band according to the first condition and the available bandwidth.

[0243] Optionally, the available bandwidth is determined based on the capabilities supported by the transmitter and receiver of the perception signal. The capabilities supported by the transmitter and receiver of the perception signal may include, for example, the hardware capabilities of the transmitter and receiver of the perception signal. For example, if the hardware capabilities of the transmitter of the perception signal can support a bandwidth of 100 MHz, and the hardware capabilities of the receiver of the perception signal can support a bandwidth of 70 MHz, then the available bandwidth may be determined to be 70 MHz. The transmitter may also be referred to as a transmitting device, and the receiver may also be referred to as a receiving device.

[0244] In some possible implementations, method 500 further includes: the first device determining the available bandwidth based on the capabilities supported by the transmitter and receiver of the perception signal. In some possible implementations, method 500 further includes: the first device receiving information indicating the available bandwidth. The information indicating the available bandwidth may be direct, i.e., the information indicating the available bandwidth includes information about the available bandwidth; or the information indicating the available bandwidth may be indirect, and the first device may determine the available bandwidth based on the information indicating the available bandwidth.

[0245] It can be understood that the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band can be preliminarily determined based on the first condition, and the determined ratio may be supported by the available bandwidth or may not be supported by the available bandwidth. When the available bandwidth supports the determined ratio, the determined ratio can be directly used to allocate the bandwidth of the first frequency band and the bandwidth of the second frequency band. When the available bandwidth does not support the determined ratio, the supported ratio can be further determined based on the determined ratio. For example, the determined ratio can be approximated so that the approximate ratio can be supported by the available bandwidth. The supported ratio (or approximate ratio) can be used to allocate the bandwidth of the first frequency band and the bandwidth of the second frequency band. For example, when the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band is 1.9, the ratio can be approximated to obtain a supported ratio of 2.

[0246] Through the above embodiment, when determining the first frequency band and the second frequency band, the first device can also consider the available bandwidth determined by the capabilities supported by the transmitter and receiver of the perception signal, so that the first frequency band and the second frequency band meet the capabilities of the transmitter and receiver of the perception signal, thereby ensuring the smooth progress of perception.

[0247] In some possible implementations, the first information is used to indicate the index of the first frequency band and / or the index of the second frequency band. The first information may be direct indication information, i.e., the first information includes the index of the first frequency band and / or the index of the second frequency band; or the first information may be indirect indication information, and the second device may determine the index of the first frequency band and / or the index of the second frequency band based on the first information.

[0248] For example, Table 5 shows some possible combinations of the bandwidth of the first frequency band and the bandwidth of the second frequency band.

[0249] Table 5

[0250] It should be noted that there are certain constraints between the bandwidths of the first and second frequency bands. For example, if the first frequency band corresponds to band n5 with a CC bandwidth of 10 MHz, and the second frequency band corresponds to a CC in band n3, the CC bandwidth can only be 5 MHz or 15 MHz.

[0251] Exemplarily, Table 6 shows some possible indices of the first frequency band and the second frequency band.

[0252] Table 6

[0253] For example, for the frequency band n5 with a bandwidth of 20 MHz and the frequency band n40 with a bandwidth of 30 MHz in Table 5, the index of the first frequency band may be C11; the index of the second frequency band may be C21 or C22. Among them, C11 may correspond to a CC within the frequency range of 869 MHz to 889 MHz; C21 may correspond to a CC within the frequency range of 2.30 GHz to 2.31 GHz; and C22 may correspond to a CC within the frequency range of 2.31 GHz to 2.33 GHz. Optionally, the first information may indicate the index of the first frequency band and the index of the second frequency band, for example, including the index of the CC corresponding to the frequency band n3 with a bandwidth of 10 MHz and the index of the CC corresponding to the frequency band n5 with a bandwidth of 5 MHz. Optionally, the first information may indicate the index of the first frequency band without indicating the index of the second frequency band. For example, the first information only includes the index of the CC corresponding to the frequency band n3 with a bandwidth of 10 MHz. The second device may determine, according to Table 5, that when the first frequency band is a CC with a frequency band n3 and a bandwidth of 10 MHz, the second frequency band is a CC with a frequency band n5 and a bandwidth of 5 MHz.

[0254] In the case where the first information indicates the index of the first frequency band and / or the index of the second frequency band, the first information may also be referred to as a table lookup parameter or have other names.

[0255] Through the above embodiment, the first information can indicate an index with a smaller data volume, so that the second device can determine the first frequency band and the second frequency band according to the index, thereby reducing the resource overhead of transmitting information indicating the first frequency band and the second frequency band.

[0256] In some possible implementations, the first information is used to indicate the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band. The first information may be direct indication information, i.e., the first information includes the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band; or the first information may be indirect indication information, and the second device may determine the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band based on the first information.

[0257] Through the above embodiment, the first information can indicate the bandwidth ratio with smaller data volume, so that the second device can determine the first frequency band and the second frequency band according to the bandwidth ratio, thereby reducing the resource overhead of transmitting information indicating the first frequency band and the second frequency band.

[0258] In some cases, the second device can determine the first frequency band and the second frequency band solely by the bandwidth ratio. For example, if the first condition indicates that the ratio between the bandwidth of the first frequency band and the bandwidth of the second frequency band is 1.5, assuming that in Table 5, only one CC, frequency band n40 with a bandwidth of 30 MHz, and one CC, frequency band n5 with a bandwidth of 20 MHz, meet the bandwidth ratio. In this way, the first information does not need to indicate any further information; it only needs to indicate that the ratio between the bandwidth of the first frequency band and the bandwidth of the second frequency band is 1.5. The second device can then determine the first frequency band and the second frequency band based on the first information.

[0259] In some other implementations, the first information may be used to indicate parameter α or parameter β.

[0260] In some implementations, the first information is further used to indicate the interval between the first frequency band and the second frequency band, and / or the first information is further used to indicate the frequency of the first frequency band and / or the frequency of the second frequency band.

[0261] The first information may be direct indication information of the interval between the first frequency band and the second frequency band, that is, the first information includes the interval between the first frequency band and the second frequency band; or, the first information may be indirect indication information, and the second device may determine the interval between the first frequency band and the second frequency band based on the first information.

[0262] The first information may be direct indication information that the first information is also used to indicate the frequency of the first frequency band and / or the frequency of the second frequency band, that is, the first information contains the first information that is also used to indicate the frequency of the first frequency band and / or the frequency of the second frequency band; or, the first information may be indirect indication information, and the second device can determine, based on the first information, that the first information is also used to indicate the frequency of the first frequency band and / or the frequency of the second frequency band.

[0263] As an example, the interval between the first frequency band and the second frequency band may be the frequency distance between the first frequency band and the second frequency band. For example, the first frequency band is B1 in (a) of FIG6 , the second frequency band is B2 in (a) of FIG6 , and the interval between the first frequency band and the second frequency band may be expressed as B in (a) of FIG6 s As another example, the interval between the first frequency band and the second frequency band may also be a frequency band interval ratio.

[0264] As an example, the frequency of the first frequency band can be represented by the absolute value of the center frequency of the first frequency band, for example, 2120 MHz. As another example, the frequency of the first frequency band can be represented by an absolute radio frequency channel number (ARFCN), for example, 424000.

[0265] In some cases, the first information indicating only the bandwidth ratio is insufficient for the second device to determine the first frequency band and the second frequency band. For example, Table 5 shows a variety of cases for a first frequency band and a second frequency band with a bandwidth ratio of 2. For example, if the first information also indicates that the frequency of the first frequency band is 1820 MHz and / or that the frequency of the second frequency band is 880 MHz, the second device can determine, based on the frequency of the first frequency band and / or the frequency of the second frequency band, that the first frequency band is frequency band n3 with a 10 MHz bandwidth CC, and that the second frequency band is frequency band n5 with a 5 MHz bandwidth CC.

[0266] In some possible implementations, when the second device is capable of determining the first frequency band and the second frequency band according to the bandwidth ratio, the first information is used to indicate the bandwidth ratio.

[0267] In some other possible implementations, when the second device is unable to determine the first frequency band and the second frequency band based on the bandwidth ratio, the first information is used to indicate the bandwidth ratio. Furthermore, the first information is used to indicate the interval between the first frequency band and the second frequency band, and / or the first information is used to indicate the frequency of the first frequency band and / or the frequency of the second frequency band.

[0268] Figure 7 is a schematic flow chart of another method 700 for sensing resource indication provided in an embodiment of the present application. Method 700 can be combined with method 500. In Figure 7, the operations represented by the dotted lines are optional operations in method 700. In method 700, the first device is a control device. Method 700 takes the second device as a transmitting device and the third device as a receiving device as an example. It should be noted that for the embodiment in which the second device is a receiving device and the third device is a transmitting device, it is only necessary to interchange the second device and the third device in method 700, and the details will not be repeated.

[0269] S705: The first device sends first query information to the second device. The second device receives the first query information from the first device.

[0270] Optionally, the first query information is used to query whether the multi-band sensing function is supported. The multi-band sensing function may be the ability to sense multiple targets on multiple frequency bands. Optionally, the first query information is used to query (or request) the frequency points and bandwidths supported by the second device.

[0271] This application does not limit the specific name of the first query information. The first query information may also be called request information or have other names.

[0272] S710: A first device receives first feedback information from a second device. The second device sends the first feedback information to the first device.

[0273] Optionally, the first feedback information is used to indicate that the second device supports a multi-band sensing function. Optionally, the first feedback information is used to indicate a frequency point and a bandwidth supported by the second device.

[0274] This application does not limit the specific name of the first feedback information. The first feedback information may also be called response information or have other names.

[0275] It should be noted that S710 may be executed in response to S705, but this application is not limited thereto, and S710 may also be executed independently of S705. For example, the second apparatus may periodically send the first feedback information to the first apparatus.

[0276] S715: The first device sends second query information to the third device. The third device receives the second query information from the first device.

[0277] Optionally, the second query information is used to query whether the multi-band sensing function is supported. Optionally, the second query information is used to query (or request) the frequency and bandwidth supported by the third device.

[0278] This application does not limit the specific name of the second query information. The second query information can also be called request information or have other names.

[0279] S720: The first device receives second feedback information from the third device. The third device sends the second feedback information to the first device.

[0280] Optionally, the second feedback information is used to indicate that the third device supports a multi-band sensing function. Optionally, the second feedback information is used to indicate a frequency point and a bandwidth supported by the third device.

[0281] It should be noted that S720 may be executed in response to S715, but this application is not limited thereto, and S720 may also be executed independently of S715. For example, the third apparatus may periodically send the second feedback information to the first apparatus.

[0282] In addition, it should be noted that this application does not limit the execution order of S705, S710, S715, and S720.

[0283] In some possible implementations, method 700 further includes S530.

[0284] In some possible implementations, method 700 further includes S540. In some possible implementations, method 700 further includes: (S740) the first device sends the first information to the third device. Correspondingly, the third device receives the first information from the first device. For a description of the first information, refer to the above description of the first information, for example, see S540, and will not be repeated here.

[0285] In some possible implementations, the method 700 further includes S550. S550 may include: the second apparatus transmitting, in the first frequency band and the second frequency band, respectively, sensing signals to a plurality of targets.

[0286] At S750, the third device receives a sensing signal in the first and second frequency bands. The sensing signal is a signal reflected by multiple targets. In other words, combining S550 and S750, it can be understood that the second device transmits a sensing signal to the third device, and the sensing signal travels through multiple targets toward the third device.

[0287] S760: The third device determines a perception result based on the received perception signal.

[0288] S770: The third device sends information indicating the perception result to the first device. Correspondingly, the first device receives the information indicating the perception result from the third device.

[0289] Optionally, the information indicating the perception result may be direct indication information, that is, the information indicating the perception result contains information about the perception result; or, the information indicating the perception result may be indirect indication information, and the first device may determine the information about the perception result based on the information indicating the perception result.

[0290] Figure 8 is a schematic flowchart of another method 800 for sensing resource indication provided in an embodiment of the present application. Method 800 can be combined with method 500 or method 700. In method 800, the first device is a control device and a transmitting device, and the second device is a receiving device. In Figure 8, the operations indicated by the dashed line are optional operations in method 800.

[0291] In some possible implementations, method 800 may include S705 , S710 , S530 , or S540 .

[0292] In some possible implementations, the method 800 further includes S550. S550 may include: the first device transmitting perception signals to multiple targets respectively in the first frequency band and the second frequency band.

[0293] At S810, the second device receives a sensing signal in the first frequency band and the second frequency band. The sensing signal is a signal reflected by multiple targets. In other words, the combination of S550 and S810 can be understood as the first device transmitting a sensing signal to the second device. The sensing signal travels through multiple targets toward the second device.

[0294] S820: The second device determines a perception result based on the received perception signal.

[0295] S830: The second device sends information indicating the perception result to the first device. Correspondingly, the first device receives the information indicating the perception result from the second device.

[0296] Optionally, the information indicating the perception result may be direct indication information, that is, the information indicating the perception result contains information about the perception result; or, the information indicating the perception result may be indirect indication information, and the first device may determine the information about the perception result based on the information indicating the perception result.

[0297] Figure 9 is a schematic flowchart of another method 900 for sensing resource indication provided in an embodiment of the present application. Method 900 can be combined with method 500 or method 700. In method 900, the first device is a control device and a receiving device, and the second device is a transmitting device. In Figure 9, the operations indicated by the dashed line are optional operations in method 900.

[0298] In some possible implementations, method 900 may include S705 , S710 , S530 , or S540 .

[0299] S910: The second device transmits a sensing signal to a plurality of targets in a first frequency band and a second frequency band respectively.

[0300] In some possible implementations, method 700 further includes S550. S550 may include: the first device receiving a perception signal in the first frequency band and the second frequency band, where the perception signal is a signal reflected by multiple targets. In other words, the combination of S550 and S910 can be understood as the second device transmitting the perception signal to the first device, where the perception signal travels through the multiple targets toward the first device.

[0301] S920: The first device determines a perception result based on the received perception signal.

[0302] The following is an introduction to the device embodiment corresponding to the method embodiment of the present application. The following is only a brief introduction to the device, and the specific implementation steps and details of the solution can be referred to the method embodiment above.

[0303] To implement the various functions of the method provided herein, the communication device may include hardware structures and / or software modules, and the aforementioned functions may be implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular one of the aforementioned functions is implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.

[0304] Figure 10 is a schematic block diagram of a communication device 1000 according to an embodiment of the present application. Communication device 1000 includes a processor 1010 and a communication interface 1020. Optionally, processor 1010 and communication interface 1020 may be interconnected via a bus. Communication device 1000 may be a first device or a second device. For example, the first device may be a terminal device or a network device; the second device may be a terminal device or a network device. Communication device 1000 may also be referred to as a sensing device.

[0305] Optionally, the communication device 1000 may further include a memory 1040. The memory 1040 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), cache, erasable programmable read-only memory (EPROM), synchronous dynamic random access memory (SDRAM), hard disk drive (HDD), solid-state drive (SSD), or portable compact disc read-only memory (CD-ROM). The memory 1040 is used to store relevant instructions and / or data. The memory 1040 can be integrated with the processor 1010 or set separately.

[0306] The processor 1010 may be one or more central processing units (CPUs). In the case where the processor 1010 is a CPU, the CPU may be a single-core CPU or a multi-core CPU. The processor 1010 may be a signal processor, a chip, or other integrated circuit that can implement the method of the present application, or a portion of the circuitry used for processing functions in the aforementioned processor, chip, or integrated circuit. In addition, the communication interface 1020 may also be an input / output interface, which is used for inputting or outputting signals or data, or may be an input / output circuit.

[0307] Exemplarily, the communication device 1000 is a first device, and the processor 1010 is used to perform the following operations: determine a first frequency band and a second frequency band, the ratio of the bandwidth of the first frequency band and the bandwidth of the second frequency band is determined according to a first condition, and the first frequency band and the second frequency band are used to perceive multiple targets; send first information, and the first information is used to indicate the first frequency band and the second frequency band.

[0308] Exemplarily, the communication device 1000 is a second device, and the processor 1010 is used to perform the following operations: receive first information, where the first information is used to indicate a first frequency band and a second frequency band, and the ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band is determined according to a first condition; and perceive multiple targets based on the first frequency band and the second frequency band.

[0309] The above content is only for exemplary description. The communication device 1000 is responsible for executing the methods or steps related to the first device or the second device in the above method embodiments.

[0310] In one possible implementation, the communication interface 1020 may be a transceiver. The transceiver may include a transmitter and a receiver, where the transmitter is configured to perform a sending operation and the receiver is configured to perform a receiving operation. For example, the processor 1010 is configured to control the transceiver to receive and / or send signals.

[0311] In a possible implementation, the communication interface 1020 may also be a communication circuit, a pin, an input / output interface, a bus, etc.

[0312] It should be noted that the communication device 1000 may include a transmitter but not a receiver. Alternatively, the communication device 1000 may include a receiver but not a transmitter. The specific implementation depends on whether the above solution executed by the communication device 1000 includes a sending action and a receiving action.

[0313] The above description is merely exemplary. For details, please refer to the contents of the above method embodiments. The implementation of each operation in FIG10 may also correspond to the corresponding description of the method embodiments shown in FIG5 to FIG9.

[0314] For example, the communication device 1000 may be used to implement the solutions shown in FIG. 5 to FIG. 9 .

[0315] Exemplarily, the communication device 1000 is a first device, and the communication interface 1020 can be used to send first information.

[0316] Exemplarily, the communication device 1000 is a second device, and the communication interface 1020 can be used to receive the first information.

[0317] For other implementations, please refer to the detailed description of the embodiments shown in Figures 5 to 9 above, which will not be repeated here. It should be understood that the specific process of each component performing the above corresponding process has been detailed in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0318] Figure 11 is a schematic block diagram of another communication device 1100 according to an embodiment of the present application. Communication device 1100 can be the second device, the first device, or a chip or module within the second device or the first device, and is configured to implement the methods described in the embodiments of Figures 5 through 9. For details, please refer to the relevant descriptions of the aforementioned method embodiments. Communication device 1100 can also be referred to as a sensing device.

[0319] The communication device 1100 includes a transceiver unit 1110. The transceiver unit 1110 is described below by way of example.

[0320] The transceiver unit 1110 may include a transmitting unit and a receiving unit. The transmitting unit is used to perform the transmitting operation of the communication device, and the receiving unit is used to perform the receiving operation of the communication device. For ease of description, the embodiments of the present application combine the transmitting unit and the receiving unit into a single transceiver unit. This is described here for a unified explanation and will not be repeated later. The transceiver unit 1110 can implement corresponding communication functions. The transceiver unit 1110 can also be referred to as a communication interface or a communication module.

[0321] It should be noted that the communication device 1100 may include a sending unit but not a receiving unit. Alternatively, the communication device 1100 may include a receiving unit but not a sending unit. The specific implementation depends on whether the above solution executed by the communication device 1100 includes a sending action and a receiving action.

[0322] Exemplarily, the transceiver unit 1110 is used to send first information, etc.

[0323] Optionally, the communication device 1100 may further include a processing unit 1120, which is configured to execute the contents of steps related to processing, coordination, etc. of the communication device 1100. Exemplarily, the processing unit 1120 is configured to determine the first frequency band and the second frequency band.

[0324] Exemplarily, the transceiver unit 1110 is used to receive first information and the like.

[0325] Optionally, the communication device 1100 may further include a processing unit 1120, which is configured to execute the contents of the communication device 1100 involving processing, coordination, and other steps. Exemplarily, the processing unit 1120 is configured to sense multiple targets according to the first frequency band and the second frequency band.

[0326] The above contents are merely exemplary descriptions, and the communication device 1100 is responsible for executing the relevant methods or steps in the above method embodiments.

[0327] Optionally, the communication device 1100 further includes a storage unit 1130, which is configured to store a program or code for executing the aforementioned method. Alternatively, the storage unit 1130 may be configured to store instructions and / or data, and the processing unit 1120 may read the instructions and / or data in the storage unit 1130 to enable the communication device 1100 to implement the aforementioned method embodiments. For example, the communication device 1100 may be configured to execute the solutions illustrated in Figures 5 to 9.

[0328] Exemplarily, the processing unit 1120 may be configured to determine a first frequency band and a second frequency band; the transceiver unit 1110 may be configured to send first information, where the first information is configured to indicate the first frequency band and the second frequency band.

[0329] Exemplarily, the transceiver unit 1110 may be configured to receive first information; and the processing unit 1120 may be configured to sense multiple targets based on the first frequency band and the second frequency band.

[0330] For other implementations, please refer to the detailed description of the embodiments shown in Figures 5 to 9 above, which will not be repeated here. It should be understood that the specific process of each component performing the above corresponding process has been detailed in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0331] When the communication device 1000 in FIG10 is a chip, the communication interface 1020 may be a transceiver, input / output circuit, or communication interface of the chip. The processor 1010 may be a processor, microprocessor, or integrated circuit integrated on the chip. The sending operation of the first device or the second device in the above method embodiment can be understood as the output of the chip, and the receiving operation of the first device or the second device in the above method embodiment can be understood as the input of the chip.

[0332] When the communication device 1100 in FIG11 is a chip, the transceiver unit 1110 may be a transceiver, input / output circuit, or communication interface of the chip. The processing unit 1120 may be a processor, microprocessor, or integrated circuit integrated on the chip. The sending operation of the first device or the second device in the above method embodiment can be understood as the output of the chip, and the receiving operation of the first device or the second device in the above method embodiment can be understood as the input of the chip.

[0333] The present application also provides a chip, including a processor, for calling and executing instructions stored in a memory from the memory, so that a sensing device equipped with the chip executes the methods in the above examples.

[0334] The present application also provides another chip, comprising: an input interface, an output interface, and a processor, wherein the input interface, the output interface, and the processor are connected via an internal connection path, and the processor is configured to execute code in a memory. When the code is executed, the processor is configured to execute the methods in the above examples. Optionally, the chip also includes a memory, which is configured to store computer programs or code.

[0335] The present application also provides a processor for coupling with a memory, for executing the methods and functions involving the sensing device or the communication device in any of the above embodiments, or for executing the methods and functions involving the first device or the second device in any of the above embodiments.

[0336] In another embodiment of the present application, a computer program product including a computer program or instructions is provided. When the computer program product is run on a computer, the method of the aforementioned embodiment is implemented.

[0337] The present application also provides a computer program. When the computer program is executed in a computer, the method of the aforementioned embodiment is implemented.

[0338] In another embodiment of the present application, a computer-readable storage medium is provided, which stores a computer program. When the computer program is executed by a computer, the method described in the above embodiment is implemented.

[0339] The present application further provides a perception system, which includes a first device and a second device. The first device and the second device are respectively used to execute the methods executed by the first device and the second device in the above embodiments.

[0340] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0341] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0342] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0343] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0344] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0345] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0346] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for indicating a perceived resource, characterized in that: The method comprises: determining a first frequency band and a second frequency band, where a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band is determined according to a first condition, and the first frequency band and the second frequency band are used for sensing multiple targets; First information is sent, where the first information is used to indicate the first frequency band and the second frequency band.

2. The method according to claim 1, characterized in that The first condition is associated with the number of the plurality of targets and the distribution range of the plurality of targets.

3. The method according to claim 1 or 2, characterized in that The first condition includes: the greater the ratio between the number of the multiple targets and the distribution range of the multiple targets, the greater the ratio between the bandwidth of the first frequency band and the bandwidth of the second frequency band.

4. The method according to any one of claims 1 to 3, characterized in that The first condition also includes: in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of the multiple targets, range max represents the distribution range of the multiple targets, k is a positive real number, and m is a real number.

5. The method according to any one of claims 1 to 4, characterized in that The first condition also includes: in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of the multiple targets, range max Indicates the distribution range of the multiple targets.

6. The method according to any one of claims 1 to 5, characterized in that The determining of the first frequency band and the second frequency band includes: According to the first condition and the available bandwidth, a ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band is determined, wherein the available bandwidth is determined according to capabilities supported by a transmitter and a receiver of the perception signal.

7. The method according to any one of claims 1 to 6, characterized in that The first information is used to indicate an index of the first frequency band and / or an index of the second frequency band.

8. The method according to any one of claims 1 to 6, characterized in that The first information is used to indicate a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band.

9. The method according to claim 8, characterized in that The first information is further used to indicate the interval between the first frequency band and the second frequency band, and / or the first information is further used to indicate the frequency point of the first frequency band and / or the frequency point of the second frequency band.

10. The method according to any one of claims 1 to 9, characterized in that The first frequency band includes at least one first component carrier CC, and the second frequency band includes at least one second CC.

11. The method according to claim 10, characterized in that The ratio of the sum of the bandwidths of the at least one first CC to the sum of the bandwidths of the at least one second CC is determined by the first condition.

12. The method according to claim 10 or 11, characterized in that The first information is used to indicate the at least one first CC and the at least one second CC.

13. A method for indicating perceived resources, characterized in that: The method comprises: receiving first information, where the first information is used to indicate a first frequency band and a second frequency band, where a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band is determined according to a first condition; A plurality of targets are sensed according to the first frequency band and the second frequency band.

14. The method according to claim 13, characterized in that The first condition is associated with the number of the plurality of targets and the distribution range of the plurality of targets.

15. The method according to claim 13 or 14, characterized in that The first condition includes: the greater the ratio between the number of the multiple targets and the distribution range of the multiple targets, the greater the ratio between the bandwidth of the first frequency band and the bandwidth of the second frequency band.

16. The method according to any one of claims 13 to 15, characterized in that The first condition also includes: in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of the multiple targets, range max represents the distribution range of the multiple targets, k is a positive real number, and m is a real number.

17. The method according to any one of claims 13 to 16, characterized in that The first condition also includes: in, B1 represents the bandwidth of the first frequency band, B2 represents the bandwidth of the second frequency band, target num Indicates the number of the multiple targets, range max Indicates the distribution range of the multiple targets.

18. The method according to any one of claims 13 to 17, characterized in that The ratio of the bandwidth of the first frequency band to the bandwidth of the second frequency band is determined according to the first condition and the available bandwidth, wherein the available bandwidth is determined according to the capabilities supported by the transmitter and receiver of the perception signal.

19. The method according to any one of claims 13 to 18, characterized in that The first information is used to indicate an index of the first frequency band and / or an index of the second frequency band.

20. The method according to any one of claims 13 to 18, characterized in that The first information is used to indicate a ratio of a bandwidth of the first frequency band to a bandwidth of the second frequency band.

21. The method according to claim 20, characterized in that The first information is further used to indicate the interval between the first frequency band and the second frequency band, and / or the first information is further used to indicate the frequency point of the first frequency band and / or the frequency point of the second frequency band.

22. The method according to any one of claims 13 to 21, characterized in that The first frequency band includes at least one first component carrier CC, and the second frequency band includes at least one second CC.

23. The method according to claim 22, characterized in that The ratio of the sum of the bandwidths of the at least one first CC to the sum of the bandwidths of the at least one second CC is determined according to the first condition.

24. The method according to claim 22 or 23, characterized in that The first information is used to indicate the at least one first CC and the at least one second CC.

25. A sensing device, characterized in that: The method comprises at least one module or at least one unit, wherein the at least one module or the at least one unit is used to execute the method according to any one of claims 1 to 12, or the at least one module or the at least one unit is used to execute the method according to any one of claims 13 to 24.

26. A sensing device, characterized in that: include: A processor, wherein the processor is configured to cause the sensing device to perform the method according to any one of claims 1 to 12 by executing a computer program or instruction, or to cause the sensing device to perform the method according to any one of claims 13 to 24.

27. The sensing device according to claim 25, characterized in that The sensing device further comprises a memory, wherein the memory is configured to store the computer program or the instructions.

28. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instructions, which, when executed on a computer, causes the method according to any one of claims 1 to 12 to be executed, or causes the method according to any one of claims 13 to 24 to be executed.

29. A computer program product, characterized in that The method comprises a computer program or an instruction. When the computer program or the instruction is executed, the method according to any one of claims 1 to 12 is implemented, or the method according to any one of claims 13 to 24 is implemented.

30. A chip, characterized in that: include: A processor, wherein the processor is configured to cause the sensing device to perform the method according to any one of claims 1 to 12 by executing a computer program or instruction, or to cause the sensing device to perform the method according to any one of claims 13 to 24.

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