Sensing processing method and device based on backscattering equipment and related equipment

Abstract

The invention discloses a sensing processing method and device based on backscattering equipment and related equipment, and belongs to the technical field of communication, and the sensing processing method based on the backscattering equipment comprises the steps that target equipment obtains target information; the target device determines a target configuration parameter based on target information, wherein the target configuration information comprises first configuration information for communication based on the backscattering device and second configuration information for sensing based on the backscattering device; wherein the target information comprises at least one of first information, second information, third information and fourth information, the first information is related information of the backscattering equipment, the second information is related information of a sensing node, the third information is measurement related information, and the fourth information is measurement related information. The fourth information comprises at least one of quality of service and perceptual priori information.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a sensing processing method, apparatus, and related equipment based on backscatter devices. Background Art

[0002] With the development of communication technologies, in a communication system, passive objects can be measured and sensed based on sensing signals or integrated communication and sensing signals. Currently, wireless sensing based on low-power backscatter devices (such as Radio Frequency Identification (RFID) tags or Backscatter tags) in a mobile communication network is an important development trend of integrated communication and sensing, with broad application scenarios. However, how to execute the interaction process and interaction content of integrated communication and sensing based on backscatter devices is not clear and urgently needs to be solved. Summary of the Invention

[0003] Embodiments of this application provide a sensing processing method, apparatus, and related equipment based on backscatter devices, which can achieve integrated communication and sensing based on backscatter devices.

[0004] In a first aspect, a sensing processing method based on a backscatter device is provided, including:

[0005] A target device obtains target information;

[0006] The target device determines target configuration parameters based on the target information, where the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0007] Wherein, the target information includes at least one of first information, second information, third information, and fourth information, the first information is information related to the backscatter device, the second information is information related to a sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0008] In a second aspect, a sensing processing method based on a backscatter device is provided, including:

[0009] A target sensing node receives target configuration parameters from a target device, where the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0010] Wherein, when the target device is a sensing functional network element, the target sensing node includes at least one of a first sensing node and a second sensing node; when the target device is the first sensing node, the target sensing node includes the second sensing node; the first sensing node is a sending node corresponding to a first signal for performing integrated communication and sensing operations; the second sensing node is a receiving node corresponding to the first signal for performing integrated communication and sensing operations.

[0011] Wherein, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0012] In a third aspect, a sensing processing method based on a backscatter device is provided, including:

[0013] The backscatter device receives target configuration parameters from a target device, and the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device.

[0014] Wherein, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0015] In a fourth aspect, a sensing processing apparatus based on a backscatter device is provided, including:

[0016] An acquisition module, configured to acquire target information;

[0017] A determination module, configured to determine target configuration parameters based on the target information, where the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0018] Wherein, the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0019] Fifth aspect, there is provided a sensing processing device based on a backscatter device, including:

[0020] A first receiving module, configured to receive target configuration parameters from a target device by a target sensing node, where the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0021] Wherein, when the target device is a sensing functional network element, the target sensing node includes at least one of a first sensing node and a second sensing node; when the target device is the first sensing node, the target sensing node includes the second sensing node; the first sensing node is a sending node corresponding to a first signal for performing integrated communication and sensing operations; the second sensing node is a receiving node corresponding to the first signal for performing integrated communication and sensing operations;

[0022] Wherein, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information, the first information is information related to the backscatter device, the second information is information related to a sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0023] Sixth aspect, there is provided a sensing processing device based on a backscatter device, including:

[0024] A second receiving module, configured to receive target configuration parameters from a target device, where the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0025] Wherein, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information, the first information is information related to the backscatter device, the second information is information related to a sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0026] Seventh aspect, there is provided a terminal, where the terminal includes a processor and a memory, and the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect, the second aspect, or the third aspect are implemented.

[0027] Eighth aspect, there is provided a terminal, including a processor and a communication interface, wherein,

[0028] When the terminal is the target device, the communication interface is used to obtain target information; the processor is used to determine target configuration parameters based on the target information, and the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0029] Wherein, the target information includes at least one of first information, second information, third information, and fourth information, the first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0030] When the terminal is the target sensing node, the communication interface is used to receive target configuration parameters from the target device, and the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0031] Wherein, in the case where the target device is a sensing functional network element, the target sensing node includes at least one of a first sensing node and a second sensing node; in the case where the target device is the first sensing node, the target sensing node includes the second sensing node; the first sensing node is the sending node corresponding to the first signal for performing the integrated communication and sensing operation; the second sensing node is the receiving node corresponding to the first signal for performing the integrated communication and sensing operation;

[0032] Wherein, the target configuration information is determined based on the target information, and the target information includes at least one of first information, second information, third information, and fourth information, the first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0033] When the terminal is the backscatter device, the communication interface is used to receive target configuration parameters from the target device, and the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0034] Wherein, the target configuration information is determined based on the target information, and the target information includes at least one of first information, second information, third information, and fourth information, the first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0035] In a ninth aspect, a network-side device is provided. The network-side device includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the first aspect or the second aspect are implemented.

[0036] In a tenth aspect, a network-side device is provided, including a processor and a communication interface. Among them,

[0037] when the network-side device is a target device, the communication interface is used to obtain target information; the processor is used to determine target configuration parameters based on the target information. The target configuration information includes first configuration information for communication based on backscatter devices and second configuration information for sensing based on backscatter devices;

[0038] wherein the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0039] when the network-side device is a target sensing node, the communication interface is used to receive target configuration parameters from the target device. The target configuration information includes first configuration information for communication based on backscatter devices and second configuration information for sensing based on backscatter devices;

[0040] wherein, in the case where the target device is a sensing functional network element, the target sensing node includes at least one of a first sensing node and a second sensing node; in the case where the target device is a first sensing node, the target sensing node includes a second sensing node; the first sensing node is a sending node corresponding to a first signal for performing integrated communication and sensing operations; the second sensing node is a receiving node corresponding to the first signal for performing integrated communication and sensing operations;

[0041] wherein the target configuration information is determined based on the target information. The target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0042] In the eleventh aspect, a readable storage medium is provided, on which a program or instructions are stored. When the program or instructions are executed by a processor, the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect are implemented.

[0043] In the twelfth aspect, a wireless communication system is provided, including: a target device, a target sensing node, and a backscatter device. The target device can be used to execute the steps of the method described in the first aspect, the target sensing node can be used to execute the steps of the method described in the second aspect, and the backscatter device can be used to execute the steps of the method described in the third aspect.

[0044] In the thirteenth aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instructions to implement the method described in the first aspect, or the method described in the second aspect, or the steps of the method described in the third aspect.

[0045] In the fourteenth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the method described in the first aspect, or the method described in the second aspect, or the steps of the method described in the third aspect.

[0046] In the embodiments of the present application, the target device obtains target information; the target device determines target configuration parameters based on the target information. The target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device; wherein, the target information includes at least one of first information, second information, third information, and fourth information. The first information is related information of the backscatter device, the second information is related information of the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information. In this way, the process of realizing communication and sensing integration based on the backscatter device is clarified in the embodiments of the present application. Description of the Drawings

[0047] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0048] Figure 2 is a flowchart of a sensing processing method based on a backscatter device provided by the present application;

[0049] Figure 3It is a multipath schematic diagram of the channel response in the first dimension in a sensing and processing method based on a backscatter device provided by this application;

[0050] Figure 4 It is a flowchart of another sensing and processing method based on a backscatter device provided by this application;

[0051] Figure 5 It is a flowchart of yet another sensing and processing method based on a backscatter device provided by this application;

[0052] Figure 6 It is a schematic structural diagram of a sensing and processing device based on a backscatter device provided by this application;

[0053] Figure 7 It is a schematic structural diagram of another sensing and processing device based on a backscatter device provided by this application;

[0054] Figure 8 It is a schematic structural diagram of yet another sensing and processing device based on a backscatter device provided by this application;

[0055] Figure 9 It is a schematic structural diagram of a communication device provided by this application;

[0056] Figure 10 It is a schematic structural diagram of a terminal provided by this application;

[0057] Figure 11 It is a schematic structural diagram of a network-side device provided by this application;

[0058] Figure 12 It is a schematic structural diagram of another network-side device provided by this application. Detailed implementation manners

[0059] The terms "first", "second", etc. in this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in this application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0060] The term "indication" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0061] It should be noted that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only in the systems and radio technologies mentioned above, but also in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses NR terms in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0062] Figure 1The block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip, or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node, etc.Among them, the base station may be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0063] The core network device may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0064] For ease of understanding, some content related to the embodiments of this application is described below:

[0065] I. Integrated Sensing and Communication (ISAC).

[0066] Wireless communication and radar sensing (Communication & Sensing, C&S) have been developing in parallel, but with limited intersection. They have many commonalities in signal processing algorithms, devices, and to some extent, system architectures. In recent years, traditional radar has been evolving towards more general wireless sensing. Wireless sensing can broadly refer to retrieving information from received radio signals. For wireless sensing related to the location of a target, common signal processing methods can be used to estimate dynamic parameters such as the reflection delay, angle of arrival, angle of departure, and Doppler of the target signal; for sensing the physical characteristics of a target, it can be achieved by measuring the inherent signal patterns of the device / object / activity. These two sensing methods can be respectively called sensing parameter estimation and pattern recognition. In this sense, wireless sensing refers to more general sensing technologies and applications using radio signals.

[0067] Communication-sensing integration can also be called communication and sensing integration. ISAC has the potential to integrate wireless sensing into mobile networks, which are called Perceptive Mobile Networks (PMNs) here. Perceptive Mobile Networks can provide both communication and wireless sensing services simultaneously, and due to their large broadband coverage and powerful infrastructure, are expected to become an omnipresent wireless sensing solution. Perceptive Mobile Networks can be widely applied to communication and sensing in the fields of transportation, communication, energy, precision agriculture, and security. It can also provide complementary sensing capabilities to existing sensor networks, with unique day-night operation functions and the ability to penetrate fog, leaves, and even solid objects.

[0068] II. Low-power backscatter communication technology.

[0069] The Point-to-Point Backscatter (BSC) technology has been widely applied in Radio Frequency Identification (RFID) applications. Passive RFID tags can report their IDs to a reader interrogating in the near field (usually a few centimeters to one meter). In the early stage, the Internet of Things (IoT) mainly consisted of RFID devices for logistics and inventory management. However, the future 6G IoT is expected to connect tens of billions of devices, complete more complex and multifunctional tasks, and have a global impact. This requires the communication capabilities and ranges (tens of meters) between IoT nodes to far exceed those of the original RFID, which only supports burst and low rates (only transmitting a pre-written ID sequence of several bytes) within a few meters. The communication range of traditional RFID is in the order of meters, while the communication range of the next-generation BSC is generally expected to reach the order of kilometers. Traditional RFID uses binary modulation, and the communication rate is generally no more than 640 Kbps. The next-generation BSC can use higher-order modulation, and the communication rate can reach at least 10 Mbps, or even 2 Gbps. Based on the existing BSC theory, by using advanced communication technologies such as small cell networks, full duplex, multi-antenna communication, massive access, and wireless power transfer, as well as the manufacturing of micro radios (such as button-sized radios) and low-power electronic devices, the above goals can be achieved.

[0070] Backscatter communication refers to the backscatter communication device using radio frequency signals in other devices or the environment for signal modulation to transmit its own information. The backscatter communication device can include:

[0071] In traditional RFID, the backscatter communication device is generally a tag, which belongs to a Passive Internet of Things (IoT) device (Passive-IoT);

[0072] Semi-Passive tags, which have a certain amplification ability for downlink reception or uplink reflection;

[0073] Tags with active transmission capabilities (Active Tags), which can send information to the reader without relying on the reflection of the incident signal.

[0074] Optionally, a simple implementation is that when the tag needs to send '1', the tag reflects the incident carrier signal, and when the tag needs to send '0', it does not reflect.

[0075] The backscatter communication device controls the reflection coefficient Γ of the circuit by adjusting its internal impedance, thereby changing the amplitude, frequency, phase, etc. of the incident signal to achieve signal modulation. The reflection coefficient of the signal can be characterized as:

[0076]

[0077] Among them, Z0 is the antenna characteristic impedance, and Z1 is the load impedance. Assuming the incident signal is S in (t), then the output signal is Therefore, by reasonably controlling the reflection coefficient, corresponding amplitude modulation, frequency modulation, or phase modulation can be achieved.

[0078] III. Sensing or integrated communication and sensing based on backscatter tags.

[0079] Integrated communication and sensing can give rise to a series of new 6G applications. In addition to several typical sensing use cases, integrated communication and sensing based on low-power communication devices will also become an important application scenario for 6G. Wireless sensing based on Radio Frequency Identification (RFID) and Backscatter Communications technology can obtain additional information about the sensing target, assist in eliminating non-ideal factors in sensing, and further enhance the performance of integrated sensing / communication and sensing. Due to the advantages of low cost, low power consumption, and being conducive to large-scale deployment of RFID and backscatter, sensing and integrated communication and sensing based on RFID / backscatter are expected to be widely used in 6G.

[0080] In a mobile communication network, base stations (including one or more Transmission Reception Points (TRPs) on the base station) and user equipment (UE) (including one or more sub-arrays / panels (Panels) on the UE) can serve as sensing nodes participating in integrated sensing / communication and sensing services. Typical UEs include mobile phone terminals, portable tablets, etc. By sending and receiving between nodes The first signal (i.e., the signal for performing integrated communication and sensing operations), it is possible to achieve the perception of a certain area or a certain entity target. The first signal may be a signal that does not contain transmission information, such as LTE / NR synchronization and reference signals, including synchronization signals and physical broadcast channel (Synchronization Signal and PBCH block, SSB) signals, channel state information reference signals (Channel State Information-Reference Signal, CSI-RS), demodulation reference signals (Demodulation Reference Signal, DMRS), channel sounding reference signals (Sounding Reference Signal, SRS), positioning reference signals (Positioning Reference Signal, PRS), phase tracking reference signals (Phase Tracking Reference Signal, PTRS), etc.; it may also be the single-frequency continuous wave (Continuous Wave, CW), frequency-modulated continuous wave (Frequency Modulated CW, FMCW) commonly used in radar, as well as ultra-wideband Gaussian pulses, etc.; it may also be a newly designed dedicated signal with good correlation characteristics and low peak-to-average power ratio, or a newly designed integrated communication and sensing signal that not only carries certain information but also has good sensing performance. For example, the new signal is formed by splicing, combining, or superimposing at least one dedicated sensing signal or reference signal and at least one communication signal in the time domain or frequency domain.

[0081] The node that sends or receives the sensing signal is called the node participating in sensing (or sensing node). The sensing node can be a base station or a UE. The device that determines the sensing node after handover and the sensing method of the sensing node after handover can be a base station, a UE, or a device in the core network, such as a sensing function network element (Sensing Function, SF), an access and mobility management function (Access and Mobility Management Function, AMF), a sensing application server in the core network, etc.

[0082] In wireless sensing with tags participating, the tag may be coupled to the sensing target, that is, the tag may be installed on the sensing target; it is also possible that the tag is decoupled from the sensing target, that is, the tag is deployed in the environment around the sensing target. During the sensing process, the sensing node receives at least part of the first signal reflected / scattered by the tag participating in sensing and obtains the measured value of the sensing measurement quantity / sensing result. The number of tags participating in sensing can be greater than 1.

[0083] The following will, in conjunction with the accompanying drawings, elaborate in detail on the perception processing method based on backscatter devices provided by the embodiments of the present application through some embodiments and their application scenarios.

[0084] Referring to Figure 2 , the embodiments of the present application provide a perception processing method based on backscatter devices. As Figure 2 shown, the perception processing method based on backscatter devices includes:

[0085] Step 201, the target device obtains target information;

[0086] In the embodiments of the present application, the above-mentioned target device can be understood as a core network function or a first perception node, and the first perception node can be understood as the sending node corresponding to the first signal, and the first signal is used to perform integrated communication and sensing operations.

[0087] Optionally, when the target device is a perception function network element, the target device can obtain at least part of the target information from the first perception node and the second perception node, or can also obtain at least part of the target information from the information stored locally. When the above-mentioned target device is the first perception node, the target device can obtain at least part of the target information from the perception function network element and the second perception node, or can also obtain at least part of the target information from the information stored locally.

[0088] Step 202, the target device determines target configuration parameters based on the target information. The target configuration information includes first configuration information for communication based on backscatter devices and second configuration information for sensing based on backscatter devices;

[0089] Among them, the target information includes at least one of first information, second information, third information, and fourth information. The first information is the related information of the backscatter device, the second information is the related information of the perception node, the third information is the measurement related information, and the fourth information includes at least one of quality of service and perception prior information.

[0090] In the embodiments of the present application, the above-mentioned backscatter device can be a tag. After the target device obtains the above-mentioned target information, it can determine the target configuration parameters based on the above-mentioned target information, and then perform integrated communication and sensing operations based on the target configuration parameters. For example, in some embodiments, the method further includes:

[0091] The target device sends the target configuration information to at least one of the target perception nodes;

[0092] The target device sends the first configuration information to the backscatter device;

[0093] Wherein, when the target device is a sensing function network element, the target sensing nodes include a first sensing node and a second sensing node; when the target device is the first sensing node, the target sensing nodes include the second sensing node; the first sensing node is the sending node corresponding to the first signal for performing integrated communication and sensing operations; the second sensing node is the receiving node corresponding to the first signal for performing integrated communication and sensing operations.

[0094] Optionally, the above-mentioned target configuration parameters can be understood as configuration information for performing integrated communication and sensing operations based on backscatter devices.

[0095] Optionally, in some embodiments, the target device may also send the second configuration information to the backscatter device. In this way, the first sensing node, the second sensing node, and the backscatter device can perform integrated communication and sensing services based on the first configuration information and the second configuration information.

[0096] It should be noted that the backscatter device for performing integrated communication and sensing operations may be composed of at least 1 tag. A backscatter device may be composed of more than 1 tag arranged in a tag array. For any 1 tag, it may have at least 1 transmitting antenna and at least 1 receiving antenna.

[0097] In the embodiments of the present application, the target device obtains target information; the target device determines target configuration parameters based on the target information, and the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device; wherein, the target information includes at least one of first information, second information, third information, and fourth information, the first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information. In this way, the process of implementing integrated communication and sensing based on the backscatter device is clarified in the embodiments of the present application.

[0098] Optionally, in some embodiments, the first configuration information includes at least one of the following:

[0099] A first set, the first set includes the modulation frequencies of pulse width modulation (PWM) of at least one backscatter device;

[0100] A second set, the second set includes the modulation periods of PWM of at least one backscatter device;

[0101] The PWM duty cycle of at least one backscatter device;

[0102] The minimum step value of the modulation frequency of the PWM of at least one backscatter device;

[0103] The mapping relationship between the modulation frequency of the PWM of at least some of the backscatter devices in the first set and the communication information backscattered and transmitted by the backscatter devices;

[0104] The mapping relationship between the modulation period of the PWM of at least some of the backscatter devices in the second set and the communication information backscattered and transmitted by the backscatter devices;

[0105] A third set, where the third set includes the frequency shift keying (FSK) modulation frequency of at least one backscatter device;

[0106] A fourth set, where the third set includes the FSK modulation period of at least one backscatter device;

[0107] The mapping relationship between the FSK modulation frequency of at least some of the backscatter devices in the third set and the communication information backscattered and transmitted by the backscatter devices;

[0108] The mapping relationship between the FSK modulation period of at least some of the backscatter devices in the fourth set and the communication information backscattered and transmitted by the backscatter devices;

[0109] A fifth set, where the fifth set includes the phase shift keying (PSK) modulation phase of at least one backscatter device;

[0110] The mapping relationship between the PSK modulation phase of at least some of the backscatter devices in the fifth set and the communication information backscattered and transmitted by the backscatter devices;

[0111] The backscatter communication coding rule based on the target dimension of at least one backscatter device;

[0112] Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension, and a joint dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

[0113] In the embodiments of the present application, the above PWM can be applied to implement FSK or PSK modulation of the backscatter device.

[0114] It should be noted that when the backscatter device performing the integrated communication and sensing operation has 1 tag, when obtaining the power spectrum of the target dimension based on the first signal backscattered and transmitted by the backscatter device, the backscatter device can transmit different information according to different first configuration information in different preset time periods, and the transmitted information is reflected on the power spectrum of the target dimension, where the power spectrum information of the target dimension within a continuous time and within a different number of preset time periods can be encoded;

[0115] When the backscatter device performing the integrated communication and sensing operation has more than 1 tag, when obtaining the power spectrum of the target dimension based on the first signal backscattered and transmitted by the backscatter device, different tags in the backscatter device can simultaneously transmit different information according to the corresponding first configuration information received within a preset time period, and the transmitted information is reflected on the power spectrum of the target dimension, where the spectral information of different target dimension regions on the same target dimension power spectrum can be encoded;

[0116] Optionally, the backscatter communication coding rule at least includes the coding length, the mapping relationship between the coding symbol and the height and / or position of the power spectrum peak of the target dimension, the mapping relationship between the coding and the communication transmission information, etc.

[0117] Optionally, use f m,1 to represent the communication information "0", and use f m,2 to represent the communication information "1", where f m,1 and f m,2 are two different PWM modulation frequencies; or, different PWM modulation frequencies f m,1 , f m,2 , …, f m,26 are sequentially mapped to the letters of the alphabet "A" - "Z"; for the modulation period T m , the FSK modulation frequency f FSK , and the PSK modulation phase have the same mapping principle with the communication information, which will not be elaborated here.

[0118] Optionally, the above azimuth dimension can include the departure azimuth dimension (relative to the sender of the first signal); the arrival azimuth dimension (relative to the receiver of the first signal); the elevation angle dimension includes the departure elevation angle dimension (relative to the sender of the first signal); the arrival elevation angle dimension (relative to the receiver of the first signal).

[0119] Optionally, the above second configuration information can include at least one of the following:

[0120] Waveform type, such as OFDM, SC - FDMA, OTFS, frequency - modulated continuous wave FMCW, pulse signal, etc.;

[0121] Sub - carrier spacing: For example, the sub - carrier spacing of an OFDM system is 30KHz;

[0122] Guard interval: The time interval between the end of the signal transmission time and the time when the latest echo signal of the signal is received; this parameter is proportional to the maximum sensing distance; for example, it can be calculated by 2dmax / c, where dmax is the maximum sensing distance (belonging to the sensing requirement). For example, for a self - transmitting and self - receiving sensing signal, dmax represents the maximum distance from the sensing signal transceiver point to the signal emission point; in some cases, the cyclic prefix CP of the OFDM signal can act as the minimum guard interval;

[0123] Bandwidth: This parameter is inversely proportional to the range resolution and can be obtained by c / 2 / delta_d, where delta_d is the range resolution (belonging to the sensing requirement); c is the speed of light;

[0124] Burst duration: This parameter is inversely proportional to the rate resolution (belonging to the sensing requirement). This parameter is the time span of the sensing signal, mainly for calculating the Doppler frequency shift; this parameter can be calculated by c / 2 / delta_v / fc; where, delta_v is the velocity resolution; fc is the carrier frequency of the sensing signal;

[0125] Time domain interval: This parameter can be calculated by c / 2 / fc / v_range; where, v_range is the maximum speed minus the minimum speed (belonging to the sensing requirement); this parameter is the time interval between two adjacent sensing signals;

[0126] Transmitted signal power, for example, taking values every 2dBm from - 20dBm to 23dBm;

[0127] Signal format, such as SRS, DMRS, PRS, etc., or other predefined signals, as well as information such as related sequence formats, etc.;

[0128] Signal direction; for example, the direction of the sensing signal or beam information;

[0129] Time resource, such as the time slot index or symbol index of the time slot where the sensing signal is located; among them, time resources are divided into two types. One is a one - time time resource, for example, sending an omnidirectional sensing signal in one symbol. The other is a non - one - time time resource, such as multiple groups of periodic time resources or discontinuous time resources (which can include start time and end time). Each group of periodic time resources sends sensing signals in the same direction, and the beam directions on different groups of periodic time resources are different;

[0130] Frequency resource, including the center frequency point of the sensing signal, bandwidth, RB or sub - carrier, Point A, starting bandwidth position, etc.

[0131] Quasi co-location (QCL) relationship. For example, the sensing signal includes multiple resources, each resource is associated with an SSB QCL, and the QCL includes Type A, B, C, or D

[0132] Antenna configuration information, including:

[0133] The antenna element ID or antenna port ID used for transmitting and / or receiving the sensing signal

[0134] The panel ID and element ID used for transmitting and / or receiving the sensing signal

[0135] The position information of the antenna element used for transmitting and / or receiving the sensing signal relative to a local reference point on the antenna array (which can be represented by Cartesian coordinates (x, y, z) or spherical coordinates ( ))

[0136] The position information of the panel used for transmitting and / or receiving the sensing signal relative to a local reference point on the antenna array (which can be represented by Cartesian coordinates (x, y, z) or spherical coordinates ( )) and the position information of the antenna elements used for transmitting the sensing signal within these selected panels relative to a unified reference point of the panel (such as the center point of the panel) (which can be represented by Cartesian coordinates (x, y, z) or spherical coordinates ( ))

[0137] The bitmap information of the antenna element. For example: this bitmap uses "1" to indicate that the element is selected for transmitting and / or receiving the sensing signal, and uses "0" to indicate that the element is not selected (it can also be the other way around);

[0138] The bitmap information of the array panel. For example: this bitmap uses "1" to indicate that the element is selected for transmitting and / or receiving the sensing signal, and uses "0" to indicate that the element is not selected (it can also be the other way around). And the element bitmap information within these selected panels.

[0139] Optionally, in some embodiments, the first information includes at least one of the following:

[0140] The list of backscatter device identifiers corresponding to the sensing area;

[0141] The list of backscatter device identifiers corresponding to the sensing target;

[0142] The status information of the backscatter device;

[0143] The sensing capability information of the backscatter device;

[0144] The encryption algorithm type of the backscatter device;

[0145] The type of forward error correction code (FEC) for channel coding;

[0146] The corresponding coding rate.

[0147] In the embodiments of the present application, the identification list of the above backscatter device may be the Electronic Product Code (EPC) of RFID or the ID of a new device.

[0148] Optionally, the status information of the above backscatter device may include at least one of the following:

[0149] Location information, for example, two-dimensional or three-dimensional location information, including the Cartesian coordinates or polar coordinates of the reference frame origin of the backscatter device;

[0150] Velocity information, for example, magnitude and direction;

[0151] Antenna orientation information.

[0152] Optionally, in some embodiments, the sensing capability information of the backscatter device includes at least one of the following: sensing range; operating bandwidth; operating frequency of each channel; modulation method; supported read / write frequency; number of antennas; antenna array information; array arrangement information; error statistical distribution parameters of the reflected signal phase; power supply method; power information; energy storage capacity; amplitude modulation ability; phase modulation ability; frequency modulation ability; duplex ability; amplification ability; frequency shift ability; sideband suppression ability; carrier generation ability; measurement ability; self-sensing ability.

[0153] In the embodiments of the present application, the operating frequency of each channel can be understood as the subcarrier frequency within the bandwidth; the above antenna data may include the number of transmit antennas and the number of receive antennas; the above antenna array information can be understood as the antenna array information of a single backscatter device, for example, it may include antenna spacing, antenna array pattern, etc.; the array arrangement information can be understood as the backscatter device array formed by multiple backscatter devices, where 1 backscatter device serves as 1 array element, including backscatter device spacing, backscatter device array pattern, etc.; the above functional modes may include passive, semi-passive, and active, etc.; the above energy storage capacity can be understood as the maximum energy storage capacity; the above amplitude modulation ability can be understood as the amplitude information of the adjustable reflected signal supported, continuous amplitude modulation or discrete amplitude modulation, and the number of states of the corresponding continuous or discrete characteristics; the above phase modulation ability can be understood as the phase information of the adjustable reflected signal supported, continuous phase modulation or discrete phase modulation, and the number of states of the corresponding continuous or discrete characteristics; the above frequency modulation ability can be understood as the frequency information of the adjustable reflected signal supported, continuous frequency modulation or discrete frequency modulation, and the number of states of the corresponding continuous or discrete characteristics; the above duplex ability may include supporting half-duplex, supporting full-duplex, and supporting sub-band full-duplex; the above amplification ability can be understood as the amplification factor; the above frequency shifting ability may include frequency shifting at the levels of KHz and MHz; the above sideband suppression ability may include having, not having, only having the upper sideband suppression ability, only having the lower sideband suppression ability, etc.; the above measurement ability can be understood as the ability to obtain perception measurement quantities, for example, it includes whether there is a measurement ability and what kind of perception measurement quantity measurement ability; the above self-perception ability may include whether the antenna and circuit impedance change information of the backscatter device can be obtained, whether the microcontroller unit (MCU) of the backscatter device can obtain the measurement information of the dedicated sensor, etc.

[0154] Optionally, in some embodiments, the second information includes at least one of the following: available resource information; hardware information; detection ability indication information; status information.

[0155] In the embodiments of the present application, the above available resource information can be understood as the resource information available for the second sensing node to perform sensing or integrated sensing and communication, including at least one of the following:

[0156] Available bandwidth resources, for example, including: the number of physical resource blocks (PRBs), the number of subcarriers, the number of resource elements (REs) in the frequency domain, and the number of bandwidth parts (BWPs);

[0157] Available time resources, for example, including: the number of OFDM frames, the number of OFDM time slots, the number of OFDM symbols, and the number of time domain resource units;

[0158] The available antenna resources, for example, include: the number of antenna ports (including the number in the horizontal and vertical directions, and the total number), the number of physical antennas (including the number in the horizontal and vertical directions, and the total number), the antenna port index, and the physical antenna index.

[0159] Optionally, the above hardware information can be understood as the hardware information of the second sensing node, and can include, for example, at least one of the following:

[0160] Antenna port information, for example, includes: the position coordinates of the equivalent phase center of the antenna port relative to a certain predetermined reference point on the antenna array, the antenna port formation, and the number of physical antennas of the sub-array connected to the antenna port;

[0161] Physical antenna information, such as the position coordinates of the physical antenna relative to a certain predetermined reference point on the antenna array, the physical antenna formation, and the formation of the sub-array connected to the antenna port; wherein, the formation can include: linear array, planar array, circular array, cylindrical array, L-shaped array, and non-uniform array, etc.

[0162] Optionally, the above detection capability indication information can include at least one of the following:

[0163] The background noise level (Noise Floor Level, NFL) in the delay domain of at least one antenna port;

[0164] The background noise level in the Doppler domain of at least one antenna port;

[0165] The background noise level in the angle domain of multiple antenna ports;

[0166] The detection dynamic range in the delay domain of at least one antenna port;

[0167] The detection dynamic range in the Doppler domain of at least one antenna port;

[0168] The detection dynamic range in the angle domain of multiple antenna ports.

[0169] Optionally, the above state information of the sensing node can include at least one of the following:

[0170] The position information of the sensing node, which can be, for example, two-dimensional or three-dimensional position information, including the Cartesian coordinates or polar coordinates of the origin of the reference system of the sensing node;

[0171] The speed information of the sensing node, such as magnitude and direction;

[0172] The orientation information of the antenna or antenna array of the sensing node.

[0173] Optionally, in some embodiments, the third information includes at least one of the following: the measured value of the target metric, the measured value of the sensed measurement quantity, the sensing result, the measured value of the first target metric, the measured value of the second target metric;

[0174] Wherein, the first target metric is a sensing performance metric other than the target metric, and the second target metric is a communication performance metric other than the target metric.

[0175] It should be noted that the transmission of the above first information, second information, third information, and fourth information may include at least one of the following situations:

[0176] Sent from the second sensing node to the first sensing node;

[0177] Sent from the second sensing node to the sensing functional network element, and then sent from the sensing functional network element to the first sensing node;

[0178] Sent from the sensing functional network element to the first sensing node;

[0179] Sent from at least one of the first sensing node and the second sensing node to the sensing functional network element.

[0180] It should be noted that after performing the integrated communication and sensing operation based on the target configuration parameters, the second sensing node can obtain at least one of the measured value of the target metric, the measured value of the sensed measurement quantity, the measured value of the first target metric, and the measured value of the second target metric.

[0181] Optionally, the second sensing node sends at least one of the obtained measured value of the target metric, the measured value of the sensed measurement quantity, the measured value of the first target metric, and the measured value of the second target metric to the target device, and the target device can update at least one of the first configuration information and the second configuration information based on at least one of the obtained measured value of the target metric, the measured value of the sensed measurement quantity, the measured value of the first target metric, and the measured value of the second target metric.

[0182] Optionally, in some embodiments, the target metric includes at least one of the following:

[0183] The target metric includes at least one of the following: metrics related to received power; metrics related to interference and noise power; metrics related to both received power and interference or noise power.

[0184] Optionally, the metrics related to received power include at least one of the following:

[0185] The first indicator, which is used to represent the linear average value of the first power on the first resource. The first power is the received power of the first target path in the channel response measured for the first signal, and the first resource is the resource unit carrying the first signal;

[0186] The second indicator, which is used to represent the linear average value of the second power on the second resource. The second power is the received power of the second target path in the channel response measured for the second signal, and the second signal is the signal after the first signal propagates through the second target path, and the second resource is the resource unit carrying the second signal;

[0187] The third indicator, which is used to represent the linear average value of the third power on the third resource. The third power is the received power of the third target path in the channel response measured for the third signal, and the third signal is the signal after the first signal propagates through the third target path, and the third resource is the resource unit carrying the third signal;

[0188] Wherein, the first target path is the path only associated with the sensing target; the second target path is the path associated with both the sensing target and the backscatter device participating in sensing; the third target path is the path only associated with the backscatter device participating in sensing.

[0189] In the embodiments of the present application, the above first indicator can be understood as the received power of the first target path.

[0190] It should be noted that in the embodiments of the present application, the first signal can be a dedicated signal for performing integrated communication and sensing services, or a general term for communication signals, such as reference signals, synchronization signals, etc.

[0191] The above second indicator can be understood as the received power of the second target path. For at least one backscatter device on the propagation path of the second target path, at least one of the following is satisfied:

[0192] In the case where the backscatter device reflects the signal, it can be that the backscatter device frequency-shifts the first signal and then reflects it; or it can be a direct total reflection of the first signal. When all backscatter devices on the propagation path of the second target path are in total reflection, the resource unit carrying the second signal is the same as the resource unit carrying the first signal;

[0193] In the case where the backscatter device transmits the signal, the second signal is transmitted by the backscatter device.

[0194] The above third indicator can be understood as the received power of the third target path. For at least one backscatter device on the propagation path of the third target path, at least one of the following is satisfied:

[0195] In the case where the backscatter device reflects a signal, it may be that the backscatter device shifts the frequency of the first signal and then reflects it; or it may directly perform total reflection on the first signal. In the case where all backscatter devices on the second target path are in total reflection, the resource unit carrying the third signal is the same as the resource unit carrying the first signal;

[0196] In the case where the backscatter device transmits a signal, the third signal is transmitted by the backscatter device.

[0197] Optionally, in some embodiments, the metrics related to interference and noise power include at least one of the following:

[0198] The fourth metric, where the fourth metric is the sum of a fourth power and a fifth power. The fourth power represents the linear average of the power of the fourth target path in the channel response of the first signal on the first resource, where the fourth target path is other paths except the first target path. The fifth power represents the linear average of the interference and noise power from the fourth signal on the first resource, and the fourth signal is other signals except the first signal;

[0199] The fifth metric, where the fifth metric is used to represent the sum of a sixth power and a seventh power. The sixth power represents the linear average of the power of the fifth target path in the channel response of the fifth signal on the second resource, where the fifth target path is other paths except the second target path. The seventh power represents the linear average of the interference and noise power from the fourth signal on the second resource, and the fifth signal is other signals except the second signal;

[0200] The sixth metric, where the sixth metric is used to represent the sum of an eighth power and a ninth power. The eighth power represents the linear average of the power of the sixth target path in the channel response of the sixth signal on the third resource, where the sixth target path is other paths except the third target path. The sixth power represents the linear average of the interference and noise power from the sixth signal on the third resource, and the sixth signal is other signals except the third signal;

[0201] The seventh metric, where the seventh metric is used to represent the sum of the linear average of the power of the first interference path on the fourth resource and a tenth power. The tenth power is the linear average of the interference and noise from the seventh signal on the fourth resource, where the seventh signal is a signal other than the first signal and the second signal. The fourth resource is the set of resource units carrying the first signal and the second signal, and the first interference path is other multipaths except the first target path and the second target path;

[0202] The eighth metric, which is used to represent the sum of the linear average of the power of the second interfering path on the fifth resource and the eleventh power, where the eleventh power is the linear average of the interference and noise from the eighth signal on the fifth resource, the eighth signal is a signal other than the second signal and the third signal, the fifth resource is a set of resource units carrying the second signal and the third signal, and the second interfering path is other multipaths other than the second target path and the third target path;

[0203] The ninth metric, which is used to represent the sum of the linear average of the power of the third interfering path on the sixth resource and the twelfth power, where the twelfth power is the linear average of the interference and noise from the ninth signal on the sixth resource, the ninth signal is a signal other than the first signal and the third signal, the sixth resource is a set of resource units carrying the first signal and the third signal, and the third interfering path is other multipaths other than the first target path and the third target path;

[0204] The tenth metric, which is used to represent the sum of the linear average of the power of the fourth interfering path on the seventh resource and the thirteenth power, where the thirteenth power is the linear average of the interference and noise from the tenth signal on the seventh resource, the tenth signal is a signal other than the first signal, the second signal and the third signal, the seventh resource is a set of resource units carrying the first signal, the second signal and the third signal, and the fourth interfering path is other multipaths other than the first target path, the second target path and the third target path;

[0205] The eleventh metric, which is used to represent the linear average of the interference and noise power from the eleventh signal on the first resource, where the eleventh signal is a signal other than the first signal;

[0206] The twelfth metric, which is used to represent the linear average of the interference and noise power from the fifth signal on the second resource;

[0207] The thirteenth metric, which is used to represent the linear average of the interference and noise power from the sixth signal on the third resource;

[0208] The fourteenth metric, which is used to represent the linear average of the interference and noise power from the seventh signal on the fourth resource;

[0209] The fifteenth metric, which is used to represent the linear average of the interference and noise power from the eighth signal on the fifth resource;

[0210] The sixteenth metric, which is used to represent the linear average of the interference and noise power from the ninth signal on the fourth resource;

[0211] The seventeenth metric, which is used to represent the linear average of the interference and noise power from the tenth signal on the fourth resource;

[0212] The eighteenth metric, which is used to represent the linear average of the power of the fourth target path in the channel response of the first signal on the first resource;

[0213] The nineteenth metric, which is used to represent the linear average of the power of the fifth target path in the channel response of the second signal on the second resource;

[0214] The twentieth metric, which is used to represent the linear average of the power of the sixth target path in the channel response of the third signal on the third resource.

[0215] In the embodiments of the present application, the above fourth metric may be equal to the first total received power minus the first metric, where the first total received power may represent the linear average of the total received power on the first resource (for example, including the received power of signals from serving cells and non-serving cells, adjacent channel interference, and thermal noise, etc.), or the first total received power may be equal to the Received Signal Strength Indication (RSSI) * K1, where K1 is a coefficient greater than 0, and the measurement resource of RSSI is the first resource or other resources (such as resources configured by high-layer signaling).

[0216] Optionally, the above fifth metric may be equal to the second total received power minus the second metric. Wherein, the second total received power may represent the linear average of the total received power on the second resource (for example, including the received power of signals from serving cells and non-serving cells, adjacent channel interference, and thermal noise, etc.).

[0217] Optionally, the above sixth metric may be equal to the third total received power minus the third metric. Wherein, the third total received power may represent the linear average of the total received power on the third resource (for example, including the received power of signals from serving cells and non-serving cells, adjacent channel interference, and thermal noise, etc.).

[0218] Optionally, the above seventh metric may be equal to the fourth total received power minus the first metric and then minus the second metric. Wherein, the fourth total received power may represent the linear average of the total received power on the fourth resource.

[0219] Optionally, the above eighth metric may be equal to the fifth total received power minus the second metric and then minus the third metric. Wherein, the fifth total received power may represent the linear average of the total received power on the fifth resource.

[0220] Optionally, the above-mentioned ninth metric may be equal to the sixth total received power minus the first metric and then minus the third metric. The sixth total received power may represent the linear average of the total received power on the sixth resource.

[0221] Optionally, the above-mentioned tenth metric may be equal to the seventh total received power minus the first metric, then minus the second metric, and then minus the third metric. The seventh total received power may represent the linear average of the total received power on the seventh resource.

[0222] Optionally, the above-mentioned eleventh metric may be equal to the first total received power minus the received power of the first signal, where the received power of the first signal may be understood as the reference signal received power (RSRP) of the first signal.

[0223] Optionally, the above-mentioned twelfth metric may be equal to the second total received power minus the received power of the second signal, where the received power of the second signal may be understood as the RSRP of the second signal.

[0224] Optionally, the above-mentioned thirteenth metric may be equal to the third total received power minus the received power of the third signal, where the received power of the third signal may be understood as the RSRP of the third signal.

[0225] Optionally, the above-mentioned fourteenth metric may be equal to the fourth total received power minus the received power of the first signal and then minus the received power of the second signal.

[0226] Optionally, the above-mentioned fifteenth metric may be equal to the fifth total received power minus the received power of the second signal and then minus the received power of the third signal.

[0227] Optionally, the above-mentioned sixteenth metric may be equal to the sixth total received power minus the received power of the first signal and then minus the received power of the third signal.

[0228] Optionally, the above-mentioned seventeenth metric may be equal to the seventh total received power minus the received power of the first signal, then minus the received power of the second signal, and then minus the received power of the third signal.

[0229] Optionally, the above-mentioned eighteenth metric may be equal to the received power of the first signal minus the first metric.

[0230] Optionally, the above-mentioned nineteenth metric may be equal to the received power of the second signal minus the second metric.

[0231] Optionally, the above-mentioned twentieth metric may be equal to the received power of the third signal minus the third metric.

[0232] Optionally, in some embodiments, the metrics related to both the received power and the interference or noise power include at least one of the following:

[0233] An index for evaluating the signal quality of the first target path;

[0234] An index for evaluating the signal quality of the second target path;

[0235] An index for evaluating the signal quality of the third target path;

[0236] An index for comprehensively evaluating the signal quality of the useful signal.

[0237] Optionally, the index for evaluating the signal quality of the first target path includes at least one of the following:

[0238] The twenty - first index, where the twenty - first index is equal to the first index divided by the fourth index;

[0239] The twenty - second index, where the twenty - second index is equal to the first index divided by the eleventh index;

[0240] The twenty - third index, where the twenty - third index is equal to the first index divided by the eighteenth index.

[0241] Optionally, the index for evaluating the signal quality of the second target path includes at least one of the following:

[0242] The twenty - fourth index, where the twenty - fourth index is equal to the second index divided by the fifth index;

[0243] The twenty - fifth index, where the twenty - fifth index is equal to the second index divided by the twelfth index;

[0244] The twenty - sixth index, where the twenty - sixth index is equal to the second index divided by the nineteenth index.

[0245] Optionally, the index for evaluating the signal quality of the third target path includes at least one of the following:

[0246] The twenty - seventh index, where the twenty - seventh index is equal to the third index divided by the sixth index;

[0247] The twenty - eighth index, where the twenty - eighth index is equal to the third index divided by the thirteenth index;

[0248] The twenty - ninth index, where the twenty - ninth index is equal to the third index divided by the twentieth index.

[0249] Optionally, the index for comprehensively evaluating the signal quality of the useful signal includes at least one of the following:

[0250] The thirtieth index, where the thirtieth index = K2 * the twenty - first index+K3 * the twenty - fourth index+K4 * the twenty - seventh index; where K2, K3, and K4 are coefficients greater than 0;

[0251] The thirty-first index, where the thirty-first index = K5 * the twenty-second index + K6 * the twenty-fifth index + K7 * the twenty-eighth index; where K5, K6, and K7 are coefficients greater than 0;

[0252] The thirty-second index, where the thirty-second index = K8 * the twenty-third index + K9 * the twenty-sixth index + K 10 * the twenty-ninth index; where K8, K9, K 10 are coefficients greater than 0;

[0253] The thirty-third index, where the thirty-third index = K 11 * (the first index / the tenth index) + K 12 * (the second index / the tenth index) + K 13 * (the third index / the tenth index); where K 11 , K 12 , K 13 are coefficients greater than 0;

[0254] The thirty-fourth index, where the thirty-fourth index = K 14 * (the first index / the seventeenth index) + K 15 * (the second index / the seventeenth index) + K 16 * (the third index / the seventeenth index); where K 14 , K 15 , K 16 are coefficients greater than 0;

[0255] The thirty-fifth index, where the thirty-fifth index = K 17 * (the first index / the seventh index) + K 18 * (the second index / the seventh index); where K 17 , K 18 are coefficients greater than 0;

[0256] The thirty-sixth index, where the thirty-sixth index = K 19 * (the second index / the eighth index) + K 20 * (the third index / the eighth index); where K 19 , K 20 are coefficients greater than 0;

[0257] The thirty-seventh index, where the thirty-seventh index = K 21 * (the first index / the ninth index) + K 22 * (the third index / the ninth index); where K 21 , K 22 are coefficients greater than 0;

[0258] The thirty-eighth index, where the thirty-eighth index = K23 *(First Index / Ninth Index) + K 24 *(Second Index / Ninth Index); where K 23 , K 24 is a coefficient greater than 0;

[0259] Thirty - ninth Index, where the Thirty - ninth Index = K 25 *(Second Index / Fifteenth Index) + K 26 *(Third Index / Fifteenth Index); where K 25 , K 26 is a coefficient greater than 0;

[0260] Fortieth Index, where the Fortieth Index = K 27 *(First Index / Sixteenth Index) + K 28 *(Third Index / Sixteenth Index); where K 27 , K 28 is a coefficient greater than 0;

[0261] Forty - first Index, where the Forty - first Index = K 29 *(First Index / Eighteenth Index) + K 30 *(Second Index / Nineteenth Index) + K 31 *(Third Index / Twentieth Index); where K 29 , K 30 , K 31 is a coefficient greater than 0.

[0262] Optionally, for the calculation methods of the above - mentioned First Index, Second Index, or Third Index, the First Index will be taken as an example for illustration below.

[0263] The terminal performs channel estimation on the basis of the transmitted first signal X(k) and the received signal Y(k) corresponding to the first signal to obtain the channel response H(k)=Y(k) / X(k), where k = 0, 1, 2, …, K - 1, representing the resource element index. After the terminal obtains the channel response X(k), it transforms it to the target dimension and determines the first target path in the target dimension. Then, the power of the first target path is calculated as the First Index. If the first target path includes multiple paths, the sum of the powers of the multiple paths is calculated as the First Index.

[0264] Among them, the target dimension includes one of the following: delay dimension; Doppler dimension; azimuth dimension; elevation dimension; a dimension jointly composed of at least two of the delay dimension, Doppler dimension, azimuth dimension, and elevation dimension, for example, delay - Doppler dimension, delay - Doppler - angle dimension, etc.

[0265] For example, if H(f) is the channel response, where f = 0, 1, 2, …, N - 1 represents the frequency-domain sampling points (such as subcarrier indices), then by performing an inverse Fourier transform on H(f), it can be transformed into the delay dimension (the target dimension); for another example, if H(f, t) is the channel response, where f = 0, 1, 2, …, N - 1 represents the frequency-domain sampling points (such as subcarrier indices) and t = 0, 1, 2, …, M - 1 represents the time-domain sampling points (such as OFDM symbol indices), then by performing an inverse Fourier transform along the frequency domain dimension and a Fourier transform along the time domain dimension on H(f, t), it can be transformed into the delay-Doppler dimension (the target dimension); for another example, if H(f, t, s) is the channel response, where f = 0, 1, 2, …, N - 1 represents the frequency-domain sampling points (such as subcarrier indices), t = 0, 1, 2, …, M - 1 represents the time-domain sampling points (such as OFDM symbol indices), and s = 0, 1, 2, …, P - 1 represents the spatial domain sampling points (antenna indices or port indices), then by performing an inverse Fourier transform along the frequency domain dimension, a Fourier transform along the time domain dimension, and a Fourier transform along the antenna domain dimension on H(f, t, s), it can be transformed into the delay-Doppler-angle dimension (the target dimension).

[0266] The method for determining the first target path in the channel response measured from the first signal is as follows:

[0267] Determine the first path set. The paths in the first path set include the paths among all the paths whose amplitude / power / intensity / energy exceed a certain threshold after the channel response is transformed into the target dimension. (For example Figure 3 in which, paths 0, 1, 2, 3 are the paths in the first path set); the certain threshold can be set to be higher than the noise threshold or higher than the noise interference threshold. Among them, in Figure 3 the horizontal axis is the target dimension and the vertical axis is the normalized amplitude / power / intensity / energy. It should be understood that this step (determining the first path set) is optional, and the first target path can be determined only according to the next step.

[0268] Select the paths that meet the target conditions from the first path set or from all the paths as the first target path.

[0269] The target conditions include at least one of the following:

[0270] The amplitude / power / intensity / energy of the path exceeds a preset threshold or is within a preset interval range; for example, the preset threshold is 5 times higher than the noise threshold;

[0271] The Doppler of the path exceeds a preset threshold or is within a preset interval range;

[0272] The delay of the path exceeds a preset threshold or is within a preset interval range;

[0273] The angle of the path exceeds a preset threshold or lies within a preset range;

[0274] The difference in amplitude / power / intensity / energy between the path and the first-arrival path (such as the LOS path) or the reference path (such as the signal path reflected by a known target (such as a Reconfigurable Intelligent Surface (RIS) / Backscatter device / other known passive target, etc.)) exceeds a preset threshold or lies within a preset range;

[0275] The Doppler difference between the path and the first-arrival path (such as the LOS path) or the reference path (such as the signal path reflected by a known target (such as RIS / Backscatter device / other known passive target, etc.)) exceeds a preset threshold or lies within a preset range;

[0276] The time-delay difference between the path and the first-arrival path (such as the LOS path) or the reference path (such as the signal path reflected by a known target (such as RIS / Backscatter device / other known passive target, etc.)) exceeds a preset threshold or lies within a preset range;

[0277] The angle difference between the path and the first-arrival path (such as the LOS path) or the reference path (such as the signal path reflected by a known target (such as RIS / Backscatter device / other known passive target, etc.)) exceeds a preset threshold or lies within a preset range;

[0278] The amplitude / power / intensity / energy or phase of the path satisfies a specific modulation rule, and the specific modulation rule is the modulation rule of the Tag / Backscatter device / RIS, that is, the first target path can be the path modulated and reflected by the Tag / Backscatter device / RIS.

[0279] It should be understood that the above target conditions can also be based on the results of statistics over a period of time; for example, the proportion of the above indicators (such as the Doppler of the path, the time delay of the path, etc.) exceeding the preset threshold or lying within the preset range reaches the preset proportion within a preset time window, or the number of times the above indicators (such as the Doppler of the path, the time delay of the path, etc.) exceed the preset threshold or lie within the preset range reaches the preset number within a preset time window;

[0280] Among them, the preset threshold or the set range is sent by other devices to the receiving device and determined by other devices according to the perception prior information or perception requirements. Or, the preset threshold or the set range is determined by the receiving device according to the perception prior information or perception requirements.

[0281] Among them, the perception prior information or perception requirements include the following information:

[0282] Perception services or perception service types. The perception services can be, for example, detecting the presence of a target, positioning, speed detection, distance detection, angle detection, acceleration detection, material analysis, component analysis, shape detection, category classification, radar cross section (RCS) detection, polarization scattering characteristic detection, fall detection, intrusion detection, quantity statistics, indoor positioning, gesture recognition, lip reading recognition, gait recognition, expression recognition, face recognition, breathing monitoring, heart rate monitoring, pulse monitoring, humidity / brightness / temperature / atmospheric pressure monitoring, air quality monitoring, weather condition monitoring, environment reconstruction, terrain and landform, building / vegetation distribution detection, pedestrian or vehicle flow detection, crowd density / vehicle density detection, etc. The perception service types can classify multiple different perception services according to certain characteristics. For example, they can be classified into detection-type perception services (such as intrusion detection, fall detection), parameter estimation-type perception services (distance, angle, speed calculation), recognition-type perception services (action recognition, identity recognition), etc. according to function. They can also be classified according to the perception range (close-range perception, medium-range perception, long-range perception), according to the perception fineness (coarse-grained perception, fine-grained perception, etc.), according to power consumption / energy consumption, according to resource occupancy, etc. If the perception service is breathing monitoring, the corresponding normal breathing frequency can be judged according to the gender and age of a person (for example, male: 13 - 21 times per minute, female: 15 - 20 times per minute; adult: 12 - 20 times per minute, child: about 30 - 40 times per minute), which can be used as perception prior information;

[0283] Perceived target area: It refers to the position area of the perception object, or the position area that needs to be imaged or reconstructed. For example, determine the preset interval range of the time delay of the first target path according to the approximate position / distance of the perception object;

[0284] Perception object type: Classify the perception objects according to their possible motion characteristics. Each perception object type contains information such as the motion speed range, motion acceleration range, and typical RCS range of typical perception objects;

[0285] The number of perceived targets; for example, as a kind of perception prior information, the perception result of a camera can obtain the number of perceived targets.

[0286] For example Figure 3 In [example], paths 0, 1, 2, 3 are paths in the first path set, where paths 2, 3 are the perception paths that meet the target conditions (for example, their time delays meet the preset threshold), and paths 0, 1 are the paths associated with other scatterers.

[0287] For frequency range 1, the reference point of the first metric can be the antenna connector of a receiving device such as a terminal. For frequency range 1, if the receiving device has multiple receiving channels, the first metric measured and reported by the receiving device shall not be lower than that of any single receiving channel. For frequency range 2, the first metric measured for a certain receiving channel needs to be obtained by measuring the combined signal on multiple antenna elements corresponding to that receiving channel.

[0288] Another optional calculation method for the first metric is as follows:

[0289] When calculating the received power of the first target path, it can also be the difference between the power of the first target path in the target dimension and N1P σ avr as the first metric, where N1 represents the number of first target paths. N1P σ avr is the average power of multiple paths outside the first path set in the target dimension.

[0290] The calculation method for the received power of the first signal is as follows:

[0291] The received power of the first signal can be that after the receiving device obtains the channel response H(k), it transforms it into the target dimension, determines the first path set in the target dimension, and then calculates the sum of the powers of all paths in the first path set.

[0292] It should be noted that for the calculation of the second metric, only the information associated with the first metric needs to be replaced with the information associated with the second metric. For example, replace the above first signal with the second signal, the first target path with the second target path, and the first metric with the second metric. In addition, for the calculation of the third metric, only the information associated with the first metric needs to be replaced with the information associated with the third metric. For example, replace the above first signal with the third signal, the first target path with the third target path, and the first metric with the third metric.

[0293] Optionally, for the calculation methods of the fourth to tenth metrics, the calculation method of the fourth metric will be described below as an example, specifically as follows:

[0294] The channel response H(k) is subjected to the first filtering process to obtain H filter1 (k), and then the received signal Y filter1 after the first filtering process is calculated based on H filter1 (k) and the first signal X(k), that is, Y filter1 (k) = Hfilter1 (k)X(k). Then subtract the received signal Y filter1 (k) from the received signal Y(k) to obtain the interference and noise signal Y σ1 (k), that is, Y σ1 (k) = Y(k) - Y filter1 (k), and then calculate the fourth index

[0295] Among them, the first filtering process is used to eliminate the noise, interference, and non-first target paths in the target dimension. For example, the first filtering process sets Figure 3 the amplitude / power / intensity / energy of the paths other than the first target path in to zero. The channel response H filter1 (k) after the first filtering process does not contain noise, interference, and non-first target paths, and only contains the first target path.

[0296] It should be noted that for the calculation of the fifth index to the tenth index, only the information associated with the fourth index needs to be replaced with the information associated with the fifth index to the tenth index, and will not be elaborated here.

[0297] Optionally, for the calculation methods of the eleventh index to the seventeenth index, the following will take the eleventh index as an example for illustration. The calculation method of the eleventh index is as follows:

[0298] Perform a second filtering process on the channel response H(k) to obtain H filter2 (k), and then calculate the received signal Y filter2 (k) after the second filtering process according to H filter2 (k) and the first signal X(k), that is, Y filter2 (k) = H filter2 (k)X(k). Then subtract the received signal Y(k) from the received signal Y filter2 (k) to obtain the interference and noise signal Y σ2 (k), that is, Y σ2 (k) = Y(k) - Y filter2 (k), and then calculate the eleventh index

[0299] The second filtering process can be a noise interference suppression process in the target dimension (for example Figure 3 setting the amplitude / power / intensity / energy of the paths other than the first path set in to zero), or a minimum mean square error MMSE filter. The channel response H filter2 (k) after the second filtering process does not contain noise and interference, and only contains the paths in the first path set.

[0300] Another optional calculation method of the eleventh index:

[0301] According to the average power P of multiple paths outside the first path set in the target dimension σ avr the eleventh index P is calculated σ2 That is where N represents the number of sampling points in the target dimension.

[0302] Optionally, the above first target index can be calculated based on the perception measurement quantity, and is used to evaluate the perception performance of the second perception node on the perception area or the perception target, including at least one of the following:

[0303] The statistical mean, standard deviation or variance of multiple measurement results of the same perception measurement quantity;

[0304] The deviation between the predicted value and the actual measured value of the perception measurement quantity / perception result, and the statistical mean, standard deviation or variance of the deviation;

[0305] Evaluation indexes related to the Ambiguity Function, including the Normalized Sidelobe Level (NSL), that is, the height of the highest sidelobe of the normalized ambiguity function; or the ratio of the main lobe to the highest sidelobe of the ambiguity function (it can also be the ratio of the highest sidelobe to the main lobe); in addition, it can also include the number of normalized ambiguity function sidelobes / total power / total energy with peak higher than a given threshold, the main lobe width (3dB width) of the ambiguity function, etc.;

[0306] The Cramér-Rao Lower Bound (CRLB) is the lowest variance that all unbiased estimators can achieve, which is mathematically equal to the reciprocal of the Fisher information, and this evaluation index is related to the perception SNR;

[0307] The Capacity-Distortion Tradeoff quantitatively gives the maximum achievable rate of reliable transmission of the integrated communication and sensing system under a given distortion constraint;

[0308] The Equivalent-MSE converts the spectral efficiency of communication into an equivalent radar mean square error, and is comprehensively calculated in combination with the perception Cramér-Rao lower bound;

[0309] The Estimation-Communication Rate takes the perception channel as a non-cooperative communication channel, and the mutual information between the perception system and the target is the estimation rate;

[0310] The Welch Bound;

[0311] Perceptible reproducible evaluation metrics (such as the sum of Euclidean distances between two consecutive sequence samples, or the alignment path distance in Dynamic Time Warping (DTW), or other metrics that can reflect the similarity between two sequences, including but not limited to: Longest Common Subsequence (LCSS), Edit Distance on Real Sequences (EDR), Edit Distance with Real Penalty (ERP), Hausdorff Distance, Fréchet Distance, One Way Distance (OWD), Locality In-between Polylines (LIP), etc.);

[0312] The calculation result obtained by performing at least one operation of addition, subtraction, multiplication, or division on at least one of the target metrics, any at least two of the evaluation metrics related to the Ambiguity Function, the Cramer-Rao Lower Bound (CRLB), etc.

[0313] Optionally, the second target metric can be calculated based on the perceptible measurement quantity and is used to evaluate the communication performance of the backscatter device, including at least one of the following:

[0314] The Bit Error Rate (BER) / Block Error Ratio (BLER) of backscatter communication using the first signal of at least one port;

[0315] The spectral efficiency of backscatter communication using the first signal of at least one port;

[0316] The transmission capacity of backscatter communication using the first signal of at least one port.

[0317] Wherein, the backscatter communication is that the backscatter device modulates the communication information onto the first signal and reflects it. The first signal modulated and reflected by the backscatter device is received by the second sensing node, and the second sensing node detects the first harmonic of the modulated first signal in the target dimension and demodulates the communication information. The communication information includes: the communication data information between the backscatter device and the second sensing node, the measurement information of the dedicated sensor associated with the backscatter device, and the ID information of the backscatter device.

[0318] Refer toFigure 4 , embodiments of the present application also provide a perception processing method based on a backscatter device, as Figure 4 shown, the perception processing method based on the backscatter device includes:

[0319] Step 401, the target perception node receives target configuration parameters from the target device, and the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for perception based on the backscatter device;

[0320] Among them, when the target device is a perception functional network element, the target perception node includes at least one of a first perception node and a second perception node; when the target device is a first perception node, the target perception node includes a second perception node; the first perception node is a sending node corresponding to a first signal for performing integrated communication and sensing operations; the second perception node is a receiving node corresponding to the first signal for performing integrated communication and sensing operations;

[0321] Among them, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the perception node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and perception prior information.

[0322] Refer to Figure 5 , embodiments of the present application also provide a perception processing method based on a backscatter device, as Figure 5 shown, the perception processing method based on the backscatter device includes:

[0323] Step 501, the backscatter device receives target configuration parameters from the target device, and the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for perception based on the backscatter device;

[0324] Among them, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the perception node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and perception prior information.

[0325] In the corresponding method embodiments of the above Figure 4 and Figure 5 , the definitions of each noun can refer to the following description:

[0326] Optionally, the first configuration information includes at least one of the following:

[0327] A first set, the first set including the modulation frequency of pulse width modulation (PWM) of at least one backscatter device;

[0328] A second set, the second set including the modulation period of PWM of at least one backscatter device;

[0329] The PWM duty cycle of at least one backscatter device;

[0330] The minimum step value of the modulation frequency of PWM of at least one backscatter device;

[0331] The mapping relationship between the modulation frequency of PWM of at least some of the backscatter devices in the first set and the communication information transmitted by the backscatter devices through backscattering;

[0332] The mapping relationship between the modulation period of PWM of at least some of the backscatter devices in the second set and the communication information transmitted by the backscatter devices through backscattering;

[0333] A third set, the third set including the frequency shift keying (FSK) modulation frequency of at least one backscatter device;

[0334] A fourth set, the fourth set including the FSK modulation period of at least one backscatter device;

[0335] The mapping relationship between the FSK modulation frequency of at least some of the backscatter devices in the third set and the communication information transmitted by the backscatter devices through backscattering;

[0336] The mapping relationship between the FSK modulation period of at least some of the backscatter devices in the fourth set and the communication information transmitted by the backscatter devices through backscattering;

[0337] A fifth set, the fifth set including the phase shift keying (PSK) modulation phase of at least one backscatter device;

[0338] The mapping relationship between the PSK modulation phase of at least some of the backscatter devices in the fifth set and the communication information transmitted by the backscatter devices through backscattering;

[0339] The backscatter communication coding rule based on the target dimension of at least one backscatter device;

[0340] Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension; a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

[0341] Optionally, the first information includes at least one of the following:

[0342] A list of backscatter device identifiers corresponding to the sensing area;

[0343] A list of backscatter device identifiers corresponding to the sensing target;

[0344] The status information of the backscatter device;

[0345] The sensing capability information of the backscatter device;

[0346] The encryption algorithm type of the backscatter device;

[0347] The type of forward error correction code (FEC) for channel coding;

[0348] The corresponding coding rate.

[0349] Optionally, the sensing capability information of the backscatter device includes at least one of the following: sensing range; operating bandwidth; operating frequency of each channel; modulation method; supported read and write frequencies; number of antennas; antenna array information; array arrangement information; error statistical distribution parameters of the reflected signal phase; power supply method; power information; energy storage capacity; amplitude modulation ability; phase modulation ability; frequency modulation ability; duplex ability; amplification ability; frequency shifting ability; sideband suppression ability; carrier generation ability; measurement ability; self-sensing ability.

[0350] Optionally, the second information includes at least one of the following: available resource information; hardware information; detection capability indication information; status information.

[0351] Optionally, the third information includes at least one of the following: measured value of the target index, measured value of the sensed measurement quantity, sensing result, measured value of the first target index, measured value of the second target index;

[0352] Wherein, the first target index is a sensing performance index other than the target index, and the second target index is a communication performance index other than the target index.

[0353] Optionally, the target index includes at least one of the following:

[0354] The target index includes at least one of the following: an index related to received power; an index related to interference and noise power; an index related to both received power and interference or noise power.

[0355] Optionally, the index related to received power includes at least one of the following:

[0356] The first indicator, which is used to represent the linear average value of the first power on the first resource. The first power is the received power of the first target path in the channel response measured for the first signal, and the first resource is the resource unit carrying the first signal;

[0357] The second indicator, which is used to represent the linear average value of the second power on the second resource. The second power is the received power of the second target path in the channel response measured for the second signal, and the second signal is the signal after the first signal propagates through the second target path. The second resource is the resource unit carrying the second signal;

[0358] The third indicator, which is used to represent the linear average value of the third power on the third resource. The third power is the received power of the third target path in the channel response measured for the third signal, and the third signal is the signal after the first signal propagates through the third target path. The third resource is the resource unit carrying the third signal;

[0359] Among them, the first target path is the path only associated with the sensing target; the second target path is the path associated with both the sensing target and the backscatter device participating in sensing; the third target path is the path only associated with the backscatter device participating in sensing.

[0360] Optionally, the indicators related to the interference and noise power include at least one of the following:

[0361] The fourth indicator, which is the sum of the fourth power and the fifth power. The fourth power represents the linear average value of the power of the fourth target path in the channel response of the first signal on the first resource. The fourth target path is the other path except the first target path. The fifth power represents the linear average value of the interference and noise power from the fourth signal on the first resource, and the fourth signal is the other signal except the first signal;

[0362] The fifth indicator, which is used to represent the sum of the sixth power and the seventh power. The sixth power represents the linear average value of the power of the fifth target path in the channel response of the fifth signal on the second resource. The fifth target path is the other path except the second target path. The seventh power represents the linear average value of the interference and noise power from the fourth signal on the second resource, and the fifth signal is the other signal except the second signal;

[0363] The sixth metric, which is used to represent the sum of the eighth power and the ninth power. The eighth power represents the linear average of the power of the sixth target path in the channel response of the sixth signal on the third resource. The sixth target path is other paths except the third target path. The sixth power represents the linear average of the interference and noise power from the sixth signal on the third resource. The sixth signal is other signals except the third signal;

[0364] The seventh metric, which is used to represent the sum of the linear average of the power of the first interference path on the fourth resource and the tenth power. The tenth power is the linear average of the interference and noise from the seventh signal on the fourth resource. The seventh signal is a signal other than the first signal and the second signal. The fourth resource is the set of resource units carrying the first signal and the second signal. The first interference path is other multipaths except the first target path and the second target path;

[0365] The eighth metric, which is used to represent the sum of the linear average of the power of the second interference path on the fifth resource and the eleventh power. The eleventh power is the linear average of the interference and noise from the eighth signal on the fifth resource. The eighth signal is a signal other than the second signal and the third signal. The fifth resource is the set of resource units carrying the second signal and the third signal. The second interference path is other multipaths except the second target path and the third target path;

[0366] The ninth metric, which is used to represent the sum of the linear average of the power of the third interference path on the sixth resource and the twelfth power. The twelfth power is the linear average of the interference and noise from the ninth signal on the sixth resource. The ninth signal is a signal other than the first signal and the third signal. The sixth resource is the set of resource units carrying the first signal and the third signal. The third interference path is other multipaths except the first target path and the third target path;

[0367] The tenth metric, which is used to represent the sum of the linear average of the power of the fourth interference path on the seventh resource and the thirteenth power. The thirteenth power is the linear average of the interference and noise from the tenth signal on the seventh resource. The tenth signal is a signal other than the first signal, the second signal and the third signal. The seventh resource is the set of resource units carrying the first signal, the second signal and the third signal. The fourth interference path is other multipaths except the first target path, the second target path and the third target path;

[0368] The eleventh metric, which is used to represent the linear average of the interference and noise power from the eleventh signal on the first resource. The eleventh signal is a signal other than the first signal;

[0369] The twelfth indicator, which is used to represent the linear average of the interference and noise power from the fifth signal on the second resource;

[0370] The thirteenth indicator, which is used to represent the linear average of the interference and noise power from the sixth signal on the third resource;

[0371] The fourteenth indicator, which is used to represent the linear average of the interference and noise power from the seventh signal on the fourth resource;

[0372] The fifteenth indicator, which is used to represent the linear average of the interference and noise power from the eighth signal on the fifth resource;

[0373] The sixteenth indicator, which is used to represent the linear average of the interference and noise power from the ninth signal on the fourth resource;

[0374] The seventeenth indicator, which is used to represent the linear average of the interference and noise power from the tenth signal on the fourth resource;

[0375] The eighteenth indicator, which is used to represent the linear average of the power of the fourth target path in the channel response of the first signal on the first resource;

[0376] The nineteenth indicator, which is used to represent the linear average of the power of the fifth target path in the channel response of the second signal on the second resource;

[0377] The twentieth indicator, which is used to represent the linear average of the power of the sixth target path in the channel response of the third signal on the third resource.

[0378] Optionally, the indicator related to both the received power and the interference or noise power includes at least one of the following:

[0379] An indicator for evaluating the signal quality of the first target path;

[0380] An indicator for evaluating the signal quality of the second target path;

[0381] An indicator for evaluating the signal quality of the third target path;

[0382] An indicator for comprehensively evaluating the signal quality of the useful signal.

[0383] Optionally, the indicator for evaluating the signal quality of the first target path includes at least one of the following:

[0384] The twenty - first indicator, which is equal to the first indicator divided by the fourth indicator;

[0385] The twenty-second indicator, where the twenty-second indicator is equal to the first indicator divided by the eleventh indicator;

[0386] The twenty-third indicator, where the twenty-third indicator is equal to the first indicator divided by the eighteenth indicator.

[0387] Optionally, the indicators for evaluating the signal quality of the second target diameter include at least one of the following:

[0388] The twenty-fourth indicator, where the twenty-fourth indicator is equal to the second indicator divided by the fifth indicator;

[0389] The twenty-fifth indicator, where the twenty-fifth indicator is equal to the second indicator divided by the twelfth indicator;

[0390] The twenty-sixth indicator, where the twenty-sixth indicator is equal to the second indicator divided by the nineteenth indicator.

[0391] Optionally, the indicators for evaluating the signal quality of the third target diameter include at least one of the following:

[0392] The twenty-seventh indicator, where the twenty-seventh indicator is equal to the third indicator divided by the sixth indicator;

[0393] The twenty-eighth indicator, where the twenty-eighth indicator is equal to the third indicator divided by the thirteenth indicator;

[0394] The twenty-ninth indicator, where the twenty-ninth indicator is equal to the third indicator divided by the twentieth indicator.

[0395] Optionally, the indicators for comprehensively evaluating the useful signal quality include at least one of the following:

[0396] The thirtieth indicator, where the thirtieth indicator = K2 * the twenty-first indicator + K3 * the twenty-fourth indicator + K4 * the twenty-seventh indicator; where K2, K3, and K4 are coefficients greater than 0;

[0397] The thirty-first indicator, where the thirty-first indicator = K5 * the twenty-second indicator + K6 * the twenty-fifth indicator + K7 * the twenty-eighth indicator; where K5, K6, and K7 are coefficients greater than 0;

[0398] The thirty-second indicator, where the thirty-second indicator = K8 * the twenty-third indicator + K9 * the twenty-sixth indicator + K 10 * the twenty-ninth indicator; where K8, K9, K 10 are coefficients greater than 0;

[0399] The thirty-third indicator, where the thirty-third indicator = K 11 * (the first indicator / the tenth indicator) + K 12 * (the second indicator / the tenth indicator) + K 13 * (the third indicator / the tenth indicator); where K11 , K 12 , K 13 is a coefficient greater than 0;

[0400] The thirty - fourth index, the thirty - fourth index = K 14 *(the first index / the seventeenth index)+K 15 *(the second index / the seventeenth index)+K 16 *(the third index / the seventeenth index); where K 14 , K 15 , K 16 is a coefficient greater than 0;

[0401] The thirty - fifth index, the thirty - fifth index = K 17 *(the first index / the seventh index)+K 18 *(the second index / the seventh index); where K 17 , K 18 is a coefficient greater than 0;

[0402] The thirty - sixth index, the thirty - sixth index = K 19 *(the second index / the eighth index)+K 20 *(the third index / the eighth index); where K 19 , K 20 is a coefficient greater than 0;

[0403] The thirty - seventh index, the thirty - seventh index = K 21 *(the first index / the ninth index)+K 22 *(the third index / the ninth index); where K 21 , K 22 is a coefficient greater than 0;

[0404] The thirty - eighth index, the thirty - eighth index = K 23 *(the first index / the ninth index)+K 24 *(the second index / the ninth index); where K 23 , K 24 is a coefficient greater than 0;

[0405] The thirty - ninth index, the thirty - ninth index = K 25 *(the second index / the fifteenth index)+K 26 *(the third index / the fifteenth index); where K 25 , K 26 is a coefficient greater than 0;

[0406] The fortieth index, the fortieth index = K 27 *(the first index / the sixteenth index)+K 28*(Third Index / Sixteenth Index); where K 27 , K 28 is a coefficient greater than 0;

[0407] Forty - first Index, the Forty - first Index = K 29 *(First Index / Eighteenth Index)+K 30 *(Second Index / Nineteenth Index)+K 31 *(Third Index / Twentieth Index); where K 29 , K 30 , K 31 is a coefficient greater than 0.

[0408] In the embodiment of the present application, the execution subject of the perception processing method based on the backscatter device can be the perception processing device based on the backscatter device. In the embodiment of the present application, taking the perception processing device based on the backscatter device executing the perception processing method based on the backscatter device as an example, the perception processing device based on the backscatter device provided by the embodiment of the present application is described.

[0409] Refer to Figure 6 , the embodiment of the present application also provides a perception processing device based on the backscatter device. As Figure 6 shown, the perception processing device 600 based on the backscatter device includes:

[0410] An acquisition module 601, configured to acquire target information;

[0411] A determination module 602, configured to determine target configuration parameters based on the target information, where the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for perception based on the backscatter device;

[0412] Wherein, the target information includes at least one of first information, second information, third information, and fourth information. The first information is the related information of the backscatter device, the second information is the related information of the perception node, the third information is the measurement - related information, and the fourth information includes at least one of quality of service and perception prior information.

[0413] Optionally, the perception processing device 600 based on the backscatter device further includes

[0414] A sending module, configured to send the target configuration information to at least one of the target perception nodes; and send the first configuration information to the backscatter device;

[0415] Wherein, when the target device is a sensing function network element, the target sensing node includes a first sensing node and a second sensing node; when the target device is the first sensing node, the target sensing node includes the second sensing node; the first sensing node is the sending node corresponding to the first signal for performing integrated communication and sensing operations; the second sensing node is the receiving node corresponding to the first signal for performing integrated communication and sensing operations.

[0416] Referring to Figure 7 , an embodiment of the present application further provides a sensing processing device based on a backscatter device, as Figure 7 shown. The sensing processing device 700 based on the backscatter device includes:

[0417] A first receiving module 701, configured to receive, by a target sensing node, target configuration parameters from a target device, where the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0418] Wherein, when the target device is a sensing function network element, the target sensing node includes at least one of a first sensing node and a second sensing node; when the target device is the first sensing node, the target sensing node includes the second sensing node; the first sensing node is the sending node corresponding to the first signal for performing integrated communication and sensing operations; the second sensing node is the receiving node corresponding to the first signal for performing integrated communication and sensing operations;

[0419] Wherein, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0420] Referring to Figure 8 , an embodiment of the present application further provides a sensing processing device based on a backscatter device, as Figure 8 shown. The sensing processing device 800 based on the backscatter device includes:

[0421] A second receiving module 801, configured to receive target configuration parameters from a target device, where the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device;

[0422] Among them, the target configuration information is determined based on target information, where the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0423] In the above Figures 6 to 8 corresponding apparatus embodiments, the definitions of the various terms can be referred to the following description:

[0424] Optionally, the first configuration information includes at least one of the following:

[0425] A first set, where the first set includes the modulation frequencies of pulse width modulation (PWM) of at least one backscatter device;

[0426] A second set, where the second set includes the modulation periods of PWM of at least one backscatter device;

[0427] The PWM duty cycle of at least one backscatter device;

[0428] The minimum step value of the modulation frequency of PWM of at least one backscatter device;

[0429] The mapping relationship between the modulation frequencies of PWM of at least some of the backscatter devices in the first set and the communication information transmitted by the backscatter devices through backscattering;

[0430] The mapping relationship between the modulation periods of PWM of at least some of the backscatter devices in the second set and the communication information transmitted by the backscatter devices through backscattering;

[0431] A third set, where the third set includes the frequency shift keying (FSK) modulation frequencies of at least one backscatter device;

[0432] A fourth set, where the third set includes the FSK modulation periods of at least one backscatter device;

[0433] The mapping relationship between the FSK modulation frequencies of at least some of the backscatter devices in the third set and the communication information transmitted by the backscatter devices through backscattering;

[0434] The mapping relationship between the FSK modulation periods of at least some of the backscatter devices in the fourth set and the communication information transmitted by the backscatter devices through backscattering;

[0435] A fifth set, where the fifth set includes the phase shift keying (PSK) modulation phases of at least one backscatter device;

[0436] The mapping relationship between the PSK modulation phase of at least some of the backscatter devices in the fifth set and the communication information backscattered and transmitted by the backscatter devices;

[0437] The backscatter communication coding rule based on the target dimension for at least one backscatter device;

[0438] Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension, and a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

[0439] Optionally, the first information includes at least one of the following:

[0440] The list of backscatter device identifiers corresponding to the sensing area;

[0441] The list of backscatter device identifiers corresponding to the sensing target;

[0442] The status information of the backscatter device;

[0443] The sensing capability information of the backscatter device;

[0444] The encryption algorithm type of the backscatter device;

[0445] The type of the forward error correction code FEC for channel coding;

[0446] The corresponding coding rate.

[0447] Optionally, the sensing capability information of the backscatter device includes at least one of the following: sensing range; operating bandwidth; operating frequency of each channel; modulation method; supported read and write frequencies; number of antennas; antenna array information; array layout information; error statistical distribution parameters of the reflected signal phase; power supply method; power information; energy storage capacity; amplitude modulation ability; phase modulation ability; frequency modulation ability; duplex ability; amplification ability; frequency shifting ability; sideband suppression ability; carrier generation ability; measurement ability; self-sensing ability.

[0448] Optionally, the second information includes at least one of the following: available resource information; hardware information; detection ability indication information; status information.

[0449] Optionally, the third information includes at least one of the following: the measured value of the target index, the measured value of the sensed measurement quantity, the sensing result, the measured value of the first target index, the measured value of the second target index;

[0450] Wherein, the first target index is a sensing performance index other than the target index, and the second target index is a communication performance index other than the target index.

[0451] Optionally, the target metric includes at least one of the following:

[0452] The target metric includes at least one of the following: a metric related to received power; a metric related to interference and noise power; a metric related to both received power and interference or noise power.

[0453] Optionally, the metric related to received power includes at least one of the following:

[0454] A first metric, which is used to represent the linear average value of a first power on a first resource, where the first power is the received power of a first target path in the channel response measured for a first signal, and the first resource is a resource unit carrying the first signal;

[0455] A second metric, which is used to represent the linear average value of a second power on a second resource, where the second power is the received power of a second target path in the channel response measured for a second signal, the second signal is the signal after the first signal propagates through a second target path, and the second resource is a resource unit carrying the second signal;

[0456] A third metric, which is used to represent the linear average value of a third power on a third resource, where the third power is the received power of a third target path in the channel response measured for a third signal, the third signal is the signal after the first signal propagates through the third target path, and the third resource is a resource unit carrying the third signal;

[0457] Wherein, the first target path is a path only associated with the sensing target; the second target path is a path associated with both the sensing target and the backscatter device participating in sensing; the third target path is a path only associated with the backscatter device participating in sensing.

[0458] Optionally, the metric related to interference and noise power includes at least one of the following:

[0459] A fourth metric, which is the sum of a fourth power and a fifth power. The fourth power represents the linear average value of the power of a fourth target path in the channel response of a first signal on a first resource, where the fourth target path is other paths except the first target path, and the fifth power represents the linear average value of the interference and noise power from a fourth signal on the first resource, and the fourth signal is other signals except the first signal;

[0460] The fifth metric, where the fifth metric is used to represent the sum of the sixth power and the seventh power. The sixth power represents the linear average of the power of the fifth target path in the channel response of the fifth signal on the second resource. The fifth target path is other paths except the second target path. The seventh power represents the linear average of the interference and noise power from the fourth signal on the second resource. The fifth signal is other signals except the second signal;

[0461] The sixth metric, where the sixth metric is used to represent the sum of the eighth power and the ninth power. The eighth power represents the linear average of the power of the sixth target path in the channel response of the sixth signal on the third resource. The sixth target path is other paths except the third target path. The sixth power represents the linear average of the interference and noise power from the sixth signal on the third resource. The sixth signal is other signals except the third signal;

[0462] The seventh metric, where the seventh metric is used to represent the sum of the linear average of the power of the first interference path on the fourth resource and the tenth power. The tenth power is the linear average of the interference and noise from the seventh signal on the fourth resource. The seventh signal is a signal except the first signal and the second signal. The fourth resource is a set of resource units carrying the first signal and the second signal. The first interference path is other multipaths except the first target path and the second target path;

[0463] The eighth metric, where the eighth metric is used to represent the sum of the linear average of the power of the second interference path on the fifth resource and the eleventh power. The eleventh power is the linear average of the interference and noise from the eighth signal on the fifth resource. The eighth signal is a signal except the second signal and the third signal. The fifth resource is a set of resource units carrying the second signal and the third signal. The second interference path is other multipaths except the second target path and the third target path;

[0464] The ninth metric, where the ninth metric is used to represent the sum of the linear average of the power of the third interference path on the sixth resource and the twelfth power. The twelfth power is the linear average of the interference and noise from the ninth signal on the sixth resource. The ninth signal is a signal except the first signal and the third signal. The sixth resource is a set of resource units carrying the first signal and the third signal. The third interference path is other multipaths except the first target path and the third target path;

[0465] The tenth indicator is used to represent the sum of the linear average of the power of the fourth interference path on the seventh resource and the thirteenth power. The thirteenth power is the linear average of the interference and noise from the tenth signal on the seventh resource. The tenth signal is a signal other than the first signal, the second signal, and the third signal. The seventh resource is a set of resource units carrying the first signal, the second signal, and the third signal. The fourth interference path is other multipaths other than the first target path, the second target path, and the third target path;

[0466] The eleventh indicator is used to represent the linear average of the interference and noise power from the eleventh signal on the first resource. The eleventh signal is a signal other than the first signal;

[0467] The twelfth indicator is used to represent the linear average of the interference and noise power from the fifth signal on the second resource;

[0468] The thirteenth indicator is used to represent the linear average of the interference and noise power from the sixth signal on the third resource;

[0469] The fourteenth indicator is used to represent the linear average of the interference and noise power from the seventh signal on the fourth resource;

[0470] The fifteenth indicator is used to represent the linear average of the interference and noise power from the eighth signal on the fifth resource;

[0471] The sixteenth indicator is used to represent the linear average of the interference and noise power from the ninth signal on the fourth resource;

[0472] The seventeenth indicator is used to represent the linear average of the interference and noise power from the tenth signal on the fourth resource;

[0473] The eighteenth indicator is used to represent the linear average of the power of the fourth target path in the channel response of the first signal on the first resource;

[0474] The nineteenth indicator is used to represent the linear average of the power of the fifth target path in the channel response of the second signal on the second resource;

[0475] The twentieth indicator, the eighteenth indicator is used to represent the linear average of the power of the sixth target path in the channel response of the third signal on the third resource.

[0476] Optionally, the indicators related to both the received power and the interference or noise power include at least one of the following:

[0477] Indicators for evaluating the signal quality of the first target diameter;

[0478] Indicators for evaluating the signal quality of the second target diameter;

[0479] Indicators for evaluating the signal quality of the third target diameter;

[0480] Indicators for comprehensively evaluating the signal quality of useful signals.

[0481] Optionally, the indicators for evaluating the signal quality of the first target diameter include at least one of the following:

[0482] The twenty-first indicator, where the twenty-first indicator is equal to the first indicator divided by the fourth indicator;

[0483] The twenty-second indicator, where the twenty-second indicator is equal to the first indicator divided by the eleventh indicator;

[0484] The twenty-third indicator, where the twenty-third indicator is equal to the first indicator divided by the eighteenth indicator.

[0485] Optionally, the indicators for evaluating the signal quality of the second target diameter include at least one of the following:

[0486] The twenty-fourth indicator, where the twenty-fourth indicator is equal to the second indicator divided by the fifth indicator;

[0487] The twenty-fifth indicator, where the twenty-fifth indicator is equal to the second indicator divided by the twelfth indicator;

[0488] The twenty-sixth indicator, where the twenty-sixth indicator is equal to the second indicator divided by the nineteenth indicator.

[0489] Optionally, the indicators for evaluating the signal quality of the third target diameter include at least one of the following:

[0490] The twenty-seventh indicator, where the twenty-seventh indicator is equal to the third indicator divided by the sixth indicator;

[0491] The twenty-eighth indicator, where the twenty-eighth indicator is equal to the third indicator divided by the thirteenth indicator;

[0492] The twenty-ninth indicator, where the twenty-ninth indicator is equal to the third indicator divided by the twentieth indicator.

[0493] Optionally, the indicators for comprehensively evaluating the signal quality of useful signals include at least one of the following:

[0494] The thirtieth indicator, where the thirtieth indicator = K2 * the twenty-first indicator + K3 * the twenty-fourth indicator + K4 * the twenty-seventh indicator; where K2, K3, and K4 are coefficients greater than 0;

[0495] The thirty-first index, where the thirty-first index = K5 * the twenty-second index + K6 * the twenty-fifth index + K7 * the twenty-eighth index; K5, K6, and K7 are coefficients greater than 0;

[0496] The thirty-second index, where the thirty-second index = K8 * the twenty-third index + K9 * the twenty-sixth index + K 10 * the twenty-ninth index; K8, K9, and K 10 are coefficients greater than 0;

[0497] The thirty-third index, where the thirty-third index = K 11 * (the first index / the tenth index) + K 12 * (the second index / the tenth index) + K 13 * (the third index / the tenth index); K 11 , K 12 , K 13 are coefficients greater than 0;

[0498] The thirty-fourth index, where the thirty-fourth index = K 14 * (the first index / the seventeenth index) + K 15 * (the second index / the seventeenth index) + K 16 * (the third index / the seventeenth index); K 14 , K 15 , K 16 are coefficients greater than 0;

[0499] The thirty-fifth index, where the thirty-fifth index = K 17 * (the first index / the seventh index) + K 18 * (the second index / the seventh index); K 17 , K 18 are coefficients greater than 0;

[0500] The thirty-sixth index, where the thirty-sixth index = K 19 * (the second index / the eighth index) + K 20 * (the third index / the eighth index); K 19 , K 20 are coefficients greater than 0;

[0501] The thirty-seventh index, where the thirty-seventh index = K 21 * (the first index / the ninth index) + K 22 * (the third index / the ninth index); K 21 , K 22 are coefficients greater than 0;

[0502] The thirty-eighth index, where the thirty-eighth index = K 23*(First Index / Ninth Index) + K 24 *(Second Index / Ninth Index); where K 23 , K 24 is a coefficient greater than 0;

[0503] Thirty - ninth Index, the thirty - ninth Index = K 25 *(Second Index / Fifteenth Index) + K 26 *(Third Index / Fifteenth Index); where K 25 , K 26 is a coefficient greater than 0;

[0504] Fortieth Index, the fortieth Index = K 27 *(First Index / Sixteenth Index) + K 28 *(Third Index / Sixteenth Index); where K 27 , K 28 is a coefficient greater than 0;

[0505] Forty - first Index, the forty - first Index = K 29 *(First Index / Eighteenth Index) + K 30 *(Second Index / Nineteenth Index) + K 31 *(Third Index / Twentieth Index); where K 29 , K 30 , K 31 is a coefficient greater than 0.

[0506] The perception processing device based on the backscatter device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices other than the terminal. Exemplarily, the terminal can include but is not limited to the types of the above - listed terminal 11, and other devices can be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0507] The perception processing device based on the backscatter device provided in the embodiments of the present application can implement Figures 2 to 5 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0508] Such as Figure 9As shown in the figure, an embodiment of the present application further provides a communication device 900, including a processor 901 and a memory 902. A program or instruction that can run on the processor 901 is stored on the memory 902. When the program or instruction is executed by the processor 901, each step of the above-mentioned embodiment of the perception processing method based on the backscatter device is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0509] An embodiment of the present application further provides a terminal, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps in the method embodiment as Figures 2 to 5 shown. This terminal embodiment corresponds to the above-mentioned target device, target perception node or backscatter device-side method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this terminal embodiment, and the same technical effect can be achieved. Specifically, Figure 10 FIG. is a schematic hardware structure diagram of a terminal according to an embodiment of the present application.

[0510] The terminal 1000 includes, but is not limited to, at least some components such as a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.

[0511] Those skilled in the art can understand that the terminal 1000 may further include a power source (such as a battery) for supplying power to each component. The power source can be logically connected to the processor 1010 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 10 The terminal structure shown in does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine some components, or have different component arrangements, which will not be elaborated here.

[0512] It should be understood that in the embodiments of the present application, the input unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042. The graphics processor 10041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of, for example, a liquid crystal display, an organic light emitting diode, etc. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. The other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0513] In the embodiments of the present application, after receiving downlink data from a network side device, the radio frequency unit 1001 may transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 may send uplink data to the network side device. Generally, the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0514] The memory 1009 can be used to store software programs or instructions and various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1009 can include volatile memory or non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 1009 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0515] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 1010.

[0516] Among them, when the terminal is a target device, the radio frequency unit 1001 is used to obtain target information; the processor 1010 is used to determine target configuration parameters based on the target information, and the target configuration information includes first configuration information for communicating based on a backscatter device and second configuration information for sensing based on a backscatter device;

[0517] Wherein, the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0518] When the terminal is a target sensing node, the radio frequency unit 1001 is configured to receive target configuration parameters from a target device. The target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device.

[0519] Wherein, when the target device is a sensing functional network element, the target sensing node includes at least one of a first sensing node and a second sensing node; when the target device is the first sensing node, the target sensing node includes the second sensing node; the first sensing node is a sending node corresponding to a first signal for performing integrated communication and sensing operations; the second sensing node is a receiving node corresponding to the first signal for performing integrated communication and sensing operations.

[0520] Wherein, the target configuration information is determined based on target information, which includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0521] When the terminal is a backscatter device, the radio frequency unit 1001 is configured to receive target configuration parameters from a target device. The target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device.

[0522] Wherein, the target configuration information is determined based on target information, which includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

[0523] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment may refer to the relevant descriptions of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, they are not elaborated here.

[0524] An embodiment of the present application further provides a network-side device, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement as Figure 2 or Figure 4 the steps of the method embodiment shown. This network-side device embodiment corresponds to the above-mentioned target device or target sensing node-side method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this network-side device embodiment, and the same technical effects can be achieved.

[0525] Specifically, an embodiment of the present application further provides a network-side device. As Figure 11 shown, the network-side device 1100 includes: an antenna 1101, a radio frequency device 1102, a baseband device 1103, a processor 1104, and a memory 1105. The antenna 1101 is connected to the radio frequency device 1102. In the uplink direction, the radio frequency device 1102 receives information through the antenna 1101 and sends the received information to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes the information to be sent and sends it to the radio frequency device 1102. After processing the received information, the radio frequency device 1102 sends it out through the antenna 1101.

[0526] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1103, and the baseband device 1103 includes a baseband processor.

[0527] The baseband device 1103 may include, for example, at least one baseband board, and a plurality of chips are arranged on the baseband board. As Figure 11 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1105 through a bus interface to call the program in the memory 1105 and execute the operations of the network-side device shown in the above method embodiments.

[0528] The network-side device may further include a network interface 1106, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0529] Specifically, the network-side device 1100 in the embodiment of the present application further includes: instructions or programs stored on the memory 1105 and executable on the processor 1104. The processor 1104 calls the instructions or programs in the memory 1105 to execute Figure 6 or Figure 7 the methods executed by the respective modules shown, and the same technical effects are achieved. To avoid repetition, it will not be elaborated here.

[0530] Specifically, an embodiment of the present application further provides a network-side device. As Figure 12As shown, the network-side device 1200 includes: a processor 1201, a network interface 1202, and a memory 1203. Among them, the network interface 1202 is, for example, a common public radio interface (CPRI).

[0531] Specifically, the network-side device 1200 in the embodiments of the present application further includes: instructions or programs stored on the memory 1203 and executable on the processor 1201. The processor 1201 invokes the instructions or programs in the memory 1203 to execute Figure 6 the methods executed by the respective modules shown, and achieves the same technical effects. To avoid repetition, they will not be elaborated here.

[0532] The embodiments of the present application further provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the respective processes of the above-described embodiments of the perception processing method based on backscatter devices are implemented, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0533] Among them, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks, or optical discs, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0534] The embodiments of the present application further provide a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the respective processes of the above-described embodiments of the perception processing method based on backscatter devices, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0535] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.

[0536] The embodiments of the present application further provide a computer program / program product. The computer program / program product is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the respective processes of the above-described embodiments of the perception processing method based on backscatter devices, and the same technical effects can be achieved. To avoid repetition, they will not be elaborated here.

[0537] The embodiments of the present application further provide a wireless communication system, including: a target device, a target sensing node, and a backscatter device. The target device can be used to execute the steps of the sensing processing method based on the backscatter device on the target device side as described above. The target sensing node can be used to execute the steps of the sensing processing method based on the backscatter device on the target sensing node side as described above. The backscatter device can be used to execute the steps of the sensing processing method based on the backscatter device on the backscatter device side as described above.

[0538] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0539] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, they can also be implemented by hardware. This computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0540] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A sensing and processing method based on a backscatter device, characterized in that Including: The target device acquires target information; The target device determines target configuration parameters based on the target information, and the target configuration information includes first configuration information for communication based on backscatter devices and second configuration information for sensing based on backscatter devices; Wherein, the target information includes at least one of first information, second information, third information, and fourth information, the first information is related information of the backscatter device, the second information is related information of the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

2. The method according to claim 1, characterized in that, The first configuration information includes at least one of the following: A first set, the first set includes the modulation frequencies of pulse width modulation (PWM) of at least one backscatter device; A second set, the second set includes the modulation periods of PWM of at least one backscatter device; The PWM duty cycle of at least one backscatter device; The minimum step value of the modulation frequency of PWM of at least one backscatter device; The mapping relationship between the modulation frequencies of PWM of at least some of the backscatter devices in the first set and the communication information transmitted by the backscatter devices through backscattering; The mapping relationship between the modulation periods of PWM of at least some of the backscatter devices in the second set and the communication information transmitted by the backscatter devices through backscattering; A third set, the third set includes the frequency shift keying (FSK) modulation frequencies of at least one backscatter device; A fourth set, the third set includes the FSK modulation periods of at least one backscatter device; The mapping relationship between the FSK modulation frequencies of at least some of the backscatter devices in the third set and the communication information transmitted by the backscatter devices through backscattering; The mapping relationship between the FSK modulation periods of at least some of the backscatter devices in the fourth set and the communication information transmitted by the backscatter devices through backscattering; A fifth set, the fifth set includes the phase shift keying (PSK) modulation phases of at least one backscatter device; The mapping relationship between the PSK modulation phases of at least some of the backscatter devices in the fifth set and the communication information transmitted by the backscatter devices through backscattering; The backscatter communication coding rules of at least one backscatter device based on the target dimension; Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension; a joint dimension composed of at least two of power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

3. The method according to claim 1 or 2, characterized in that, The first information includes at least one of the following: A list of backscatter device identifiers corresponding to the sensing area; A list of backscatter device identifiers corresponding to the sensing target; The status information of the backscatter device; The sensing capability information of the backscatter device; The encryption algorithm type of the backscatter device; The type of forward error correction code (FEC) for channel coding; The corresponding coding rate.

4. The method according to claim 3, wherein The sensing capability information of the backscatter device includes at least one of the following: sensing range; working bandwidth; operating frequencies of each channel; modulation method; supported read and write frequencies; number of antennas; antenna array information; Array arrangement information; Error statistical distribution parameters of the reflection signal phase; Power supply method; Power information; Energy storage capacity; Amplitude modulation ability; Phase modulation ability; Frequency modulation ability; Duplex ability; Amplification ability; Frequency shift ability; Sideband suppression ability; Carrier generation ability; Measurement ability; Self-sensing ability.

5. The method according to any one of claims 1 to 4, characterized in that, The second information includes at least one of the following: Available resource information; Hardware information; Detection ability indication information; Status information.

6. The method according to any one of claims 1 to 5, characterized in that, The third information includes at least one of the following: Measured value of the target index, Measured value of the sensed measurement quantity, Sensing result, Measured value of the first target index, Measured value of the second target index; Wherein, the first target index is a sensing performance index other than the target index, and the second target index is a communication performance index other than the target index.

7. The method according to claim 6, characterized in that, The target index includes at least one of the following: The target index includes at least one of the following: Indices related to received power; Indices related to interference and noise power; Indices related to both received power and interference or noise power.

8. The method according to claim 7, characterized in that The indices related to received power include at least one of the following: The first index, which is used to represent the linear average value of the first power on the first resource, the first power is the received power of the first target path in the channel response measured for the first signal, and the first resource is the resource unit carrying the first signal; The second index, which is used to represent the linear average value of the second power on the second resource, the second power is the received power of the second target path in the channel response measured for the second signal, the second signal is the signal after the first signal propagates through the second target path, and the second resource is the resource unit carrying the second signal; The third index, which is used to represent the linear average value of the third power on the third resource, the third power is the received power of the third target path in the channel response measured for the third signal, the third signal is the signal after the first signal propagates through the third target path, and the third resource is the resource unit carrying the third signal; Wherein, the first target path is the path only associated with the sensing target; the second target path is the path associated with both the sensing target and the backscatter device participating in the sensing; the third target path is the path only associated with the backscatter device participating in the sensing, and the first signal is used to perform integrated communication and sensing operations.

9. The method according to claim 7 or 8, characterized in that, The indices related to interference and noise power include at least one of the following: The fourth index, which is the sum of the fourth power and the fifth power, the fourth power represents the linear average value of the power of the fourth target path in the channel response of the first signal on the first resource, the fourth target path is the path other than the first target path, and the fifth power represents the linear average value of the interference and noise power from the fourth signal on the first resource, and the fourth signal is the signal other than the first signal; The fifth indicator, which is used to represent the sum of the sixth power and the seventh power. The sixth power represents the linear average of the power of the fifth target path in the channel response of the fifth signal on the second resource. The fifth target path is other paths except the second target path. The seventh power represents the linear average of the interference and noise power from the fourth signal on the second resource. The fifth signal is other signals except the second signal; The sixth indicator, which is used to represent the sum of the eighth power and the ninth power. The eighth power represents the linear average of the power of the sixth target path in the channel response of the sixth signal on the third resource. The sixth target path is other paths except the third target path. The sixth power represents the linear average of the interference and noise power from the sixth signal on the third resource. The sixth signal is other signals except the third signal; The seventh indicator, which is used to represent the sum of the linear average of the power of the first interference path on the fourth resource and the tenth power. The tenth power is the linear average of the interference and noise from the seventh signal on the fourth resource. The seventh signal is a signal other than the first signal and the second signal. The fourth resource is a set of resource units carrying the first signal and the second signal. The first interference path is other multipaths except the first target path and the second target path; The eighth indicator, which is used to represent the sum of the linear average of the power of the second interference path on the fifth resource and the eleventh power. The eleventh power is the linear average of the interference and noise from the eighth signal on the fifth resource. The eighth signal is a signal other than the second signal and the third signal. The fifth resource is a set of resource units carrying the second signal and the third signal. The second interference path is other multipaths except the second target path and the third target path; The ninth indicator, which is used to represent the sum of the linear average of the power of the third interference path on the sixth resource and the twelfth power. The twelfth power is the linear average of the interference and noise from the ninth signal on the sixth resource. The ninth signal is a signal other than the first signal and the third signal. The sixth resource is a set of resource units carrying the first signal and the third signal. The third interference path is other multipaths except the first target path and the third target path; The tenth indicator, which is used to represent the sum of the linear average of the power of the fourth interference path on the seventh resource and the thirteenth power. The thirteenth power is the linear average of the interference and noise from the tenth signal on the seventh resource. The tenth signal is a signal other than the first signal, the second signal, and the third signal. The seventh resource is a set of resource units carrying the first signal, the second signal, and the third signal. The fourth interference path is other multipaths except the first target path, the second target path, and the third target path; The eleventh indicator, which is used to represent the linear average of the interference and noise power from the eleventh signal on the first resource. The eleventh signal is a signal other than the first signal; The twelfth indicator, which is used to represent the linear average of the interference and noise power from the fifth signal on the second resource; The thirteenth indicator, which is used to represent the linear average of the interference and noise power from the sixth signal on the third resource; The fourteenth indicator, which is used to represent the linear average of the interference and noise power from the seventh signal on the fourth resource; The fifteenth indicator, which is used to represent the linear average of the interference and noise power from the eighth signal on the fifth resource; The sixteenth indicator, which is used to represent the linear average of the interference and noise power from the ninth signal on the fourth resource; The seventeenth indicator, which is used to represent the linear average of the interference and noise power from the tenth signal on the fourth resource; The eighteenth indicator, which is used to represent the linear average of the power of the fourth target path in the channel response of the first signal on the first resource; The nineteenth indicator, which is used to represent the linear average of the power of the fifth target path in the channel response of the second signal on the second resource; The twentieth indicator, which is used to represent the linear average of the power of the sixth target path in the channel response of the third signal on the third resource.

10. The method according to any one of claims 7 to 9, characterized in that, The indicators related to both the received power and the interference or noise power include at least one of the following: An indicator for evaluating the signal quality of the first target path; An indicator for evaluating the signal quality of the second target path; An indicator for evaluating the signal quality of the third target path; An indicator for comprehensively evaluating the signal quality of the useful signal.

11. The method according to claim 10, wherein The indicator for evaluating the signal quality of the first target path includes at least one of the following: The twenty-first indicator, which is equal to the first indicator divided by the fourth indicator; The twenty-second indicator, which is equal to the first indicator divided by the eleventh indicator; The twenty-third indicator, which is equal to the first indicator divided by the eighteenth indicator.

12. The method according to claim 10 or 11, characterized in that, The indicator for evaluating the signal quality of the second target path includes at least one of the following: The twenty-fourth indicator, which is equal to the second indicator divided by the fifth indicator; The twenty-fifth indicator, which is equal to the second indicator divided by the twelfth indicator; The twenty-sixth indicator, which is equal to the second indicator divided by the nineteenth indicator.

13. The method according to any one of claims 10 to 12, characterized in that, The indicator for evaluating the signal quality of the third target path includes at least one of the following: The twenty-seventh indicator, which is equal to the third indicator divided by the sixth indicator; The twenty-eighth indicator, which is equal to the third indicator divided by the thirteenth indicator; The twenty-ninth indicator, which is equal to the third indicator divided by the twentieth indicator.

14. The method according to any one of claims 10 to 13, characterized in that, The indicator for comprehensively evaluating the signal quality of the useful signal includes at least one of the following: The thirtieth indicator, where the thirtieth indicator = K2 * the twenty-first indicator + K3 * the twenty-fourth indicator + K4 * the twenty-seventh indicator; where K2, K3, and K4 are coefficients greater than 0; The thirty-first indicator, where the thirty-first indicator = K5 * the twenty-second indicator + K6 * the twenty-fifth indicator + K7 * the twenty-eighth indicator; where K5, K6, and K7 are coefficients greater than 0; Thirty-second indicator, where the thirty-second indicator = K8 * twenty-third indicator + K9 * twenty-sixth indicator + K 10 * twenty-ninth indicator; where K8, K9, K 10 are coefficients greater than 0; Thirty-third indicator, where the thirty-third indicator = K 11 *(First indicator / Tenth indicator) + K 12 *(Second indicator / Tenth indicator) + K 13 *(Third indicator / Tenth indicator); where K 11 , K 12 , K 13 is a coefficient greater than 0; Thirty-fourth indicator, the thirty-fourth indicator = K 14 *(First indicator / Seventeenth indicator)+K 15 *(Second indicator / Seventeenth indicator)+K 16 *(Third indicator / Seventeenth indicator); where K 14 , K 15 , K 16 is a coefficient greater than 0; The thirty-fifth indicator, the thirty-fifth indicator = K 17 *(the first indicator / the seventh indicator) + K 18 *(the second indicator / the seventh indicator); where K 17 , K 18 is a coefficient greater than 0; Thirty-sixth indicator, the thirty-sixth indicator = K 19 *(Second indicator / Eighth indicator) + K 20 *(Third indicator / Eighth indicator); where K 19 , K 20 is a coefficient greater than 0; Thirty-seventh index, the thirty-seventh index = K 21 *(First index / Ninth index) + K 22 *(Third index / Ninth index); where K 21 , K 22 is a coefficient greater than 0; Thirty-eighth indicator, the thirty-eighth indicator = K 23 *(First indicator / Ninth indicator) + K 24 *(Second indicator / Ninth indicator); where K 23 , K 24 is a coefficient greater than 0; Thirty-ninth indicator, the thirty-ninth indicator = K 25 *(Second indicator / Fifteenth indicator) + K 26 *(Third indicator / Fifteenth indicator); where K 25 , K 26 is a coefficient greater than 0; Fortieth Index, where the Fortieth Index = K 27 *(First Index / Sixteenth Index) + K 28 *(Third Index / Sixteenth Index); where K 27 , K 28 is a coefficient greater than 0; The forty-first index, where the forty-first index = K 29 *(the first index / the eighteenth index) + K 30 *(the second index / the nineteenth index) + K 31 *(the third index / the twentieth index); where K 29 , K 30 , K 31 is a coefficient greater than 0.

15. The method according to any one of claims 1 to 14, characterized in that, The method further includes: The target device sends the target configuration information to at least one of the target sensing nodes; The target device sends the first configuration information to the backscatter device; Wherein, when the target device is a sensing functional network element, the target sensing nodes include a first sensing node and a second sensing node; when the target device is the first sensing node, the target sensing nodes include the second sensing node; the first sensing node is the sending node corresponding to the first signal for performing integrated communication and sensing operations; the second sensing node is the receiving node corresponding to the first signal for performing integrated communication and sensing operations.

16. A perception processing method based on a backscatter device, characterized in that, It includes: The target sensing node receives target configuration parameters from the target device, and the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device; Wherein, when the target device is a sensing functional network element, the target sensing nodes include at least one of the first sensing node and the second sensing node; when the target device is the first sensing node, the target sensing nodes include the second sensing node; the first sensing node is the sending node corresponding to the first signal for performing integrated communication and sensing operations; the second sensing node is the receiving node corresponding to the first signal for performing integrated communication and sensing operations; Wherein, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information, the first information is the related information of the backscatter device, the second information is the related information of the sensing node, the third information is the measurement related information, and the fourth information includes at least one of quality of service and sensing prior information.

17. The method according to claim 16, characterized in that The first configuration information includes at least one of the following: A first set, the first set includes the modulation frequencies of pulse width modulation (PWM) of at least one backscatter device; A second set, the second set includes the modulation periods of PWM of at least one backscatter device; The PWM duty cycle of at least one backscatter device; The minimum step value of the modulation frequency of PWM of at least one backscatter device; The mapping relationship between the modulation frequencies of PWM of at least some of the backscatter devices in the first set and the communication information backscattered and transmitted by the backscatter device; The mapping relationship between the modulation periods of PWM of at least some of the backscatter devices in the second set and the communication information backscattered and transmitted by the backscatter device; A third set, the third set includes the frequency shift keying (FSK) modulation frequencies of at least one backscatter device; A fourth set, the third set includes the FSK modulation periods of at least one backscatter device; The mapping relationship between the FSK modulation frequencies of at least some of the backscatter devices in the third set and the communication information backscattered and transmitted by the backscatter device; The mapping relationship between the FSK modulation periods of at least some of the backscatter devices in the fourth set and the communication information backscattered and transmitted by the backscatter device; The fifth set, where the fifth set includes the phase shift keying (PSK) modulation phases of at least one backscatter device; The mapping relationship between the PSK modulation phases of at least some of the backscatter devices in the fifth set and the communication information backscattered and transmitted by the backscatter devices; The backscatter communication coding rules of at least one backscatter device based on the target dimension; Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension, and a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

18. The method according to claim 16 or 17, characterized in that The first information includes at least one of the following: The list of backscatter device identifiers corresponding to the sensing area; The list of backscatter device identifiers corresponding to the sensing target; The status information of the backscatter device; The sensing capability information of the backscatter device; The type of encryption algorithm of the backscatter device; The type of forward error correction code (FEC) for channel coding; The corresponding coding rate.

19. The method according to claim 18, characterized in that, The sensing capability information of the backscatter device includes at least one of the following: sensing range; operating bandwidth; operating frequency of each channel; modulation method; supported read and write frequencies; number of antennas; antenna array information; Array arrangement information; error statistical distribution parameters of the reflection signal phase; power supply method; power information; energy storage capacity; amplitude modulation ability; phase modulation ability; frequency modulation ability; duplex ability; amplification ability; frequency shift ability; sideband suppression ability; carrier generation ability; measurement ability; self-sensing ability.

20. The method according to any one of claims 16 to 19, characterized in that, The second information includes at least one of the following: available resource information; hardware information; detection ability indication information; status information.

21. The method according to any one of claims 16 to 20, characterized in that, The third information includes at least one of the following: the measured value of the target index, the measured value of the sensed measurement quantity, the sensing result, the measured value of the first target index, the measured value of the second target index; Wherein, the first target index is a sensing performance index other than the target index, and the second target index is a communication performance index other than the target index.

22. The method according to claim 21, wherein The target index includes at least one of the following: The target index includes at least one of the following: indicators related to received power; indicators related to interference and noise power; indicators related to both received power and interference or noise power.

23. A perception processing method based on a backscatter device, characterized in that, Including: The backscatter device receives target configuration parameters from the target device, and the target configuration information includes first configuration information for communication based on the backscatter device and second configuration information for sensing based on the backscatter device; Wherein, the target configuration information is determined based on target information, and the target information includes at least one of the first information, the second information, the third information, and the fourth information. The first information is the relevant information of the backscatter device, the second information is the relevant information of the sensing node, the third information is the measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

24. The method according to claim 23, wherein The first configuration information includes at least one of the following: The first set, where the first set includes the modulation frequencies of pulse width modulation (PWM) of at least one backscatter device; The second set, where the second set includes the modulation periods of PWM of at least one backscatter device; The PWM duty cycle of at least one backscatter device; The minimum step value of the modulation frequency of the PWM of at least one backscatter device; The mapping relationship between the modulation frequency of the PWM of at least some of the backscatter devices in the first set and the communication information transmitted by the backscatter devices through backscattering; The mapping relationship between the modulation period of the PWM of at least some of the backscatter devices in the second set and the communication information transmitted by the backscatter devices through backscattering; A third set, where the third set includes the frequency shift keying (FSK) modulation frequencies of at least one backscatter device; A fourth set, where the third set includes the FSK modulation periods of at least one backscatter device; The mapping relationship between the FSK modulation frequencies of at least some of the backscatter devices in the third set and the communication information transmitted by the backscatter devices through backscattering; The mapping relationship between the FSK modulation periods of at least some of the backscatter devices in the fourth set and the communication information transmitted by the backscatter devices through backscattering; A fifth set, where the fifth set includes the phase shift keying (PSK) modulation phases of at least one backscatter device; The mapping relationship between the PSK modulation phases of at least some of the backscatter devices in the fifth set and the communication information transmitted by the backscatter devices through backscattering; The backscatter communication coding rule based on the target dimension of at least one backscatter device; Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension, and a joint dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

25. The method according to claim 23 or 24, characterized in that The first information includes at least one of the following: The list of backscatter device identifiers corresponding to the sensing area; The list of backscatter device identifiers corresponding to the sensing target; The status information of the backscatter device; The sensing capability information of the backscatter device; The type of encryption algorithm of the backscatter device; The type of forward error correction code (FEC) for channel coding; The corresponding coding rate.

26. The method according to claim 25, wherein The sensing capability information of the backscatter device includes at least one of the following: sensing range; operating bandwidth; operating frequency of each channel; modulation method; supported read and write frequencies; number of antennas; antenna array information; Array arrangement information; error statistical distribution parameters of the reflection signal phase; power supply method; power information; energy storage capacity; amplitude modulation ability; phase modulation ability; frequency modulation ability; duplex ability; amplification ability; frequency shift ability; sideband suppression ability; carrier generation ability; measurement ability; self-sensing ability.

27. The method according to any one of claims 22 to 26, characterized in that The second information includes at least one of the following: available resource information; hardware information; detection ability indication information; status information.

28. The method according to any one of claims 22 to 27, characterized in that, The third information includes at least one of the following: the measured value of the target index, the measured value of the sensed measurement quantity, the sensing result, the measured value of the first target index, the measured value of the second target index; Wherein, the first target index is a sensing performance index other than the target index, and the second target index is a communication performance index other than the target index.

29. The method according to claim 28, wherein The target index includes at least one of the following: The target metrics include at least one of the following: metrics related to received power; metrics related to interference and noise power; metrics related to both received power and interference or noise power.

30. A perception processing device based on a backscatter device, characterized in that, including: an acquisition module, configured to acquire target information; a determination module, configured to determine target configuration parameters based on the target information, where the target configuration information includes first configuration information for communication based on backscatter devices and second configuration information for sensing based on backscatter devices; wherein the target information includes at least one of first information, second information, third information, and fourth information, the first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

31. The device according to claim 30, characterized in that, The first configuration information includes at least one of the following: a first set, the first set includes the modulation frequencies of pulse width modulation (PWM) of at least one backscatter device; a second set, the second set includes the modulation periods of PWM of at least one backscatter device; the PWM duty cycle of at least one backscatter device; the minimum step value of the modulation frequency of PWM of at least one backscatter device; the mapping relationship between the modulation frequencies of PWM of at least some of the backscatter devices in the first set and the communication information transmitted by the backscatter devices through backscattering; the mapping relationship between the modulation periods of PWM of at least some of the backscatter devices in the second set and the communication information transmitted by the backscatter devices through backscattering; a third set, the third set includes the frequency shift keying (FSK) modulation frequencies of at least one backscatter device; a fourth set, the third set includes the FSK modulation periods of at least one backscatter device; the mapping relationship between the FSK modulation frequencies of at least some of the backscatter devices in the third set and the communication information transmitted by the backscatter devices through backscattering; the mapping relationship between the FSK modulation periods of at least some of the backscatter devices in the fourth set and the communication information transmitted by the backscatter devices through backscattering; a fifth set, the fifth set includes the phase shift keying (PSK) modulation phases of at least one backscatter device; the mapping relationship between the PSK modulation phases of at least some of the backscatter devices in the fifth set and the communication information transmitted by the backscatter devices through backscattering; the backscatter communication coding rules of at least one backscatter device based on a target dimension; wherein the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension; a joint dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

32. A perception processing device based on a backscatter device, characterized in that, including: a first receiving module, configured for a target sensing node to receive target configuration parameters from a target device, where the target configuration information includes first configuration information for communication based on backscatter devices and second configuration information for sensing based on backscatter devices; Wherein, when the target device is a sensing function network element, the target sensing node includes at least one of a first sensing node and a second sensing node; when the target device is the first sensing node, the target sensing node includes the second sensing node; the first sensing node is a sending node corresponding to a first signal for performing integrated communication and sensing operations; the second sensing node is a receiving node corresponding to the first signal for performing integrated communication and sensing operations. Wherein, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information. The first information is information related to the backscatter device, the second information is information related to the sensing node, the third information is measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

33. The device according to claim 32, characterized in that, The first configuration information includes at least one of the following: A first set, where the first set includes the modulation frequencies of pulse width modulation (PWM) of at least one backscatter device; A second set, where the second set includes the modulation periods of PWM of at least one backscatter device; The PWM duty cycle of at least one backscatter device; The minimum step value of the modulation frequency of PWM of at least one backscatter device; The mapping relationship between the modulation frequencies of PWM of at least some of the backscatter devices in the first set and the communication information backscattered and transmitted by the backscatter devices; The mapping relationship between the modulation periods of PWM of at least some of the backscatter devices in the second set and the communication information backscattered and transmitted by the backscatter devices; A third set, where the third set includes the frequency shift keying (FSK) modulation frequencies of at least one backscatter device; A fourth set, where the third set includes the FSK modulation periods of at least one backscatter device; The mapping relationship between the FSK modulation frequencies of at least some of the backscatter devices in the third set and the communication information backscattered and transmitted by the backscatter devices; The mapping relationship between the FSK modulation periods of at least some of the backscatter devices in the fourth set and the communication information backscattered and transmitted by the backscatter devices; A fifth set, where the fifth set includes the phase shift keying (PSK) modulation phases of at least one backscatter device; The mapping relationship between the PSK modulation phases of at least some of the backscatter devices in the fifth set and the communication information backscattered and transmitted by the backscatter devices; The backscatter communication coding rule of at least one backscatter device based on a target dimension; Wherein, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension; a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

34. A perception processing device based on a backscatter device, characterized in that, Including: A second receiving module, configured to receive target configuration parameters from a target device, where the target configuration information includes first configuration information for communication based on a backscatter device and second configuration information for sensing based on a backscatter device. Among them, the target configuration information is determined based on target information, and the target information includes at least one of first information, second information, third information, and fourth information. The first information is the relevant information of the backscatter device, the second information is the relevant information of the sensing node, the third information is the measurement-related information, and the fourth information includes at least one of quality of service and sensing prior information.

35. The device according to claim 34, characterized in that, The first configuration information includes at least one of the following: A first set, where the first set includes the modulation frequencies of pulse width modulation (PWM) of at least one backscatter device; A second set, where the second set includes the modulation periods of PWM of at least one backscatter device; The PWM duty cycle of at least one backscatter device; The minimum step value of the modulation frequency of PWM of at least one backscatter device; The mapping relationship between the modulation frequencies of PWM of at least some of the backscatter devices in the first set and the communication information transmitted by the backscatter devices through backscattering; The mapping relationship between the modulation periods of PWM of at least some of the backscatter devices in the second set and the communication information transmitted by the backscatter devices through backscattering; A third set, where the third set includes the frequency shift keying (FSK) modulation frequencies of at least one backscatter device; A fourth set, where the third set includes the FSK modulation periods of at least one backscatter device; The mapping relationship between the FSK modulation frequencies of at least some of the backscatter devices in the third set and the communication information transmitted by the backscatter devices through backscattering; The mapping relationship between the FSK modulation periods of at least some of the backscatter devices in the fourth set and the communication information transmitted by the backscatter devices through backscattering; A fifth set, where the fifth set includes the phase shift keying (PSK) modulation phases of at least one backscatter device; The mapping relationship between the PSK modulation phases of at least some of the backscatter devices in the fifth set and the communication information transmitted by the backscatter devices through backscattering; The backscatter communication coding rules of at least one backscatter device based on the target dimension; Among them, the target dimension includes any one of the following: power dimension; time delay dimension; Doppler dimension; direction angle dimension; elevation angle dimension; a combined dimension composed of at least two of the power dimension, time delay dimension, Doppler dimension, direction angle dimension, and elevation angle dimension.

36. A terminal, characterized in that, It includes a processor and a memory, and the memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, it implements the steps of the sensing processing method based on the backscatter device according to any one of claims 1 to 29.

37. A network-side device, characterized in that, It includes a processor and a memory, and the memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, it implements the steps of the sensing processing method based on the backscatter device according to any one of claims 1 to 22.

38. A readable storage medium, characterized in that, The program or instruction is stored on the readable storage medium. When the program or instruction is executed by the processor, it implements the steps of the sensing processing method based on the backscatter device according to any one of claims 1 to 29.

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