Wireless-aware parameter determination method, apparatus, and device

Abstract

The application discloses a wireless sensing parameter determination method, device and equipment, and belongs to the field of communication sensing integration. The method of the application embodiment comprises the following steps: a first device determines first parameter adjustment information according to echo signal quality of a first target or parameters of the first target; the first parameter adjustment information is used for indicating signal transmission and echo signal reception at a second time; the first device detects echo signals of a first signal transmitted at a first time to obtain the echo signal quality of the first target or the parameters of the first target; or, the first device receives the echo signal quality of the first target or the parameters of the first target from a second device, wherein the echo signal quality of the first target or the parameters of the first target are obtained by detecting the echo signals of the first signal transmitted at the first time by the second device; the second time is after the first time; the value of the first parameter is determined by a first product, wherein the first product is the product of the transmission power of the first signal, the transmission end aperture gain and the receiving end aperture gain; and the parameters of the first target comprise at least one of the RCS of the first target and distance information of the first target.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and specifically relates to a method, apparatus and device for determining parameters of wireless sensing. Background Technology

[0002] Future wireless communication systems are expected to provide a variety of high-precision sensing services, such as indoor positioning for robot navigation, Wi-Fi sensing for smart homes, and radar sensing for autonomous vehicles. Sensing and communication systems are typically designed separately and occupy different frequency bands. However, due to the widespread deployment of millimeter-wave and massive MIMO technologies, communication signals in future wireless communication systems often possess high resolution in both the time and angular domains, making it possible to achieve high-precision sensing using these signals. Therefore, it is best to design sensing and communication systems jointly, enabling them to share the same frequency band and hardware to improve frequency efficiency and reduce hardware costs. This has spurred research into Integrated Sensing and Communication (ISAC). ISAC will become a key technology in future wireless communication systems to support many important application scenarios. For example, in future autonomous vehicle networks, autonomous vehicles will obtain a wealth of information from the network, including ultra-high-resolution maps and near real-time information, for navigation and to avoid impending traffic congestion. In the same context, radar sensors in autonomous vehicles should be able to provide powerful, high-resolution obstacle detection capabilities, with resolution on the centimeter scale. ISAC technology for autonomous vehicles offers the possibility of achieving high data rate communication and high-resolution obstacle detection using the same hardware and spectrum resources. Other applications of ISAC include Wi-Fi-based indoor positioning and activity recognition, communication and sensing for unmanned aerial vehicles, extended reality (XR), and radar and communication integration. Each application has different requirements, limitations, and regulatory issues.

[0003] Radar detection, which uses the reflected echo of a target to measure distance, velocity, and angle, can be considered an important use case for integrated communication and sensing. However, radar technology in integrated communication and sensing scenarios differs from traditional radar technology due to differences in constraints and application targets. Summary of the Invention

[0004] This application provides a method, apparatus, and device for determining parameters of wireless sensing, which can optimize the system performance and the use of power resources and aperture resources in a sensing-integrated scenario.

[0005] Firstly, a method for determining parameters in wireless sensing is provided, including:

[0006] The first device determines the first parameter adjustment information based on the quality of the echo signal from the first target or the parameters of the first target; the first parameter adjustment information is used to indicate the signal transmission and echo signal reception at the second moment.

[0007] Wherein, the first device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target; or, the first device receives the echo signal quality of the first target or the parameters of the first target from the second device, and the second device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target.

[0008] Wherein, the second time point is after the first time point; the value of the first parameter is determined by the first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain; the parameters of the first target include at least one of the radar cross-section (RCS) of the first target and the range information of the first target.

[0009] Secondly, a method for determining parameters of wireless sensing is provided, including:

[0010] The third device determines the initial value of the first parameter based on the radar cross-section (RCS) of the target being sensed and the maximum effective range of radar detection, which are included in the sensing requirements.

[0011] The value of the first parameter is determined by the first product, which is the product of the transmission power of the first signal, the aperture gain of the transmitting end, and the aperture gain of the receiving end.

[0012] Thirdly, a wireless sensing parameter determination device is provided, applied to a first device, comprising:

[0013] The first determining module is used to determine first parameter adjustment information based on the echo signal quality of the first target or the parameters of the first target; the first parameter adjustment information is used to indicate the signal transmission and echo signal reception at the second time.

[0014] Wherein, the first device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target; or, the first device receives the echo signal quality of the first target or the parameters of the first target from the second device, and the second device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target.

[0015] Wherein, the second time point is after the first time point; the value of the first parameter is determined by the first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain; the parameters of the first target include at least one of the radar cross-section (RCS) of the first target and the range information of the first target.

[0016] Fourthly, a wireless sensing parameter determination device is provided, applied to a third device, comprising:

[0017] The fifth determining module is used to determine the initial value of the first parameter based on the radar cross-section (RCS) of the target being sensed and the maximum effective range of radar detection, which are included in the sensing requirements.

[0018] The value of the first parameter is determined by the first product, which is the product of the transmission power of the first signal, the aperture gain of the transmitting end, and the aperture gain of the receiving end.

[0019] Fifthly, a first device is provided, the first device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0020] In a sixth aspect, a first device is provided, including a processor and a communication interface. The processor is configured to determine first parameter adjustment information based on the echo signal quality of a first target or parameters of the first target. The first parameter adjustment information is used to indicate signal transmission and echo signal reception at a second time point, wherein the second time point is after the first time point. The value of the first parameter is determined by a first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain. The parameters of the first target include at least one of the radar cross-section (RCS) of the first target and the range information of the first target.

[0021] In a seventh aspect, a third device is provided, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0022] Eighthly, a third device is provided, including a processor and a communication interface, wherein the processor is used to determine an initial value of a first parameter based on the radar cross-section (RCS) of the target being sensed and the maximum effective range of radar detection, which are included in the sensing requirements; wherein the value of the first parameter is determined by a first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain.

[0023] A ninth aspect provides a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0024] In a tenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0025] Eleventhly, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0026] In this embodiment of the application, the first device adaptively adjusts the product of the transmission power of the first signal, the transmitting aperture gain, and the receiving aperture gain according to the echo signal quality of the first target or the parameters of the first target, so as to optimize the allocation of the system's transmission power and aperture gain resources while meeting the sensing requirements, thereby optimizing the performance and power resource utilization of the integrated communication and sensing system. Attached Figure Description

[0027] Figure 1 A block diagram illustrating a wireless communication system to which embodiments of this application may be applied;

[0028] Figure 2 This is a flowchart illustrating one of the steps of the wireless sensing parameter determination method provided in an embodiment of this application;

[0029] Figure 3 This diagram illustrates an example of an antenna array element provided in an embodiment of this application.

[0030] Figure 4 This document illustrates an example of the connection relationship between the transmitting device, the receiving device, and the sensing function network element in the method for determining the transmit power provided in this application embodiment. Figure 1 ;

[0031] Figure 5 This document illustrates an example of the connection relationship between the transmitting device, the receiving device, and the sensing function network element in the method for determining the transmit power provided in this application embodiment. Figure 2 ;

[0032] Figure 6 This document illustrates an example of the connection relationship between the transmitting device, the receiving device, and the sensing function network element in the method for determining the transmit power provided in this application embodiment. Figure 3 ;

[0033] Figure 7 This is the second flowchart illustrating the steps of the wireless sensing parameter determination method provided in this application embodiment;

[0034] Figure 8 This is a schematic diagram illustrating one of the structural features of the wireless sensing parameter determination method provided in an embodiment of this application;

[0035] Figure 9 This is a second schematic diagram illustrating the structure of the wireless sensing parameter determination method provided in this application embodiment;

[0036] Figure 10 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0037] Figure 11 This is a second schematic diagram illustrating the structure of the communication device provided in the embodiments of this application. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0039] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0040] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but 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), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0041] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment 12 may also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment 12 may include base stations, WLAN access points, or WiFi nodes, etc. Base stations may be referred to as Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolved B node, Transmitting Receiving Point (TRP), or any other suitable term in the field, 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 this application embodiment, only a base station in an NR system is used as an example for description, and the specific type of base station is not limited.

[0042] The method, apparatus, and device for determining parameters of wireless sensing provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0043] In integrated wireless sensing applications, radar technology can be used in either monostation or bistation radar modes.

[0044] In monostatic radar mode, the transmitting and receiving signals share a common antenna, and the received and transmitted signals enter different radio frequency processing links through a circulator. In this mode, continuous wave signal waveforms can be used to achieve blind-zone-free detection, provided that the received and transmitted signals are well isolated, typically requiring an isolation of around 100dB, to eliminate the overwhelming effect of transmitted signal leakage on the received signal. Since the receiver of a monostatic radar has all the information of the transmitted signal, it can perform signal processing through matched filtering (pulse compression) to obtain high signal processing gain.

[0045] In bistatic radar mode, there is no isolation issue between transmitting and receiving signals, greatly simplifying hardware complexity. Since radar signal processing is based on known information, in integrated sensing applications, known information such as synchronization and reference signals can be used for radar signal processing. However, due to the periodicity of synchronization and reference signals, the signal waveform ambiguity is no longer thumbtack-shaped but rather pegboard-shaped, increasing the degree of time delay and Doppler ambiguity, and significantly reducing the main lobe gain compared to monostatic radar mode, thus decreasing the range for distance and velocity measurements. With appropriate parameter set design, the range for distance and velocity measurements can meet the requirements for measuring common targets such as cars and pedestrians. Furthermore, the measurement accuracy of bistatic radar is related to the relative positions of the transmitting and receiving stations to the target, requiring the selection of suitable transmitting and receiving station pairs to improve detection performance.

[0046] It should be noted that the first device, the second device, and the third device provided in the embodiments of this application can be a base station, a TRP (transmitter-receiver node), a UE (terminal device), an AP (wireless access point), a RIS (reconfigurable smart surface), etc.

[0047] The wireless sensing parameter determination method provided in this application embodiment can also be understood as a joint adaptive method of transmit power and aperture gain, including a joint adaptive method of transmit power and aperture gain in search mode and a joint adaptive method of transmit power and aperture gain in tracking mode.

[0048] The search mode refers to the process of discovering a target by traversing various angle intervals and / or range intervals and / or velocity intervals within the range specified by the prior information in the perception requirements at the initial stage of radar detection; the search mode ends once the target parameters are obtained. The target parameters include at least one of the following: azimuth angle, elevation angle, range, and velocity.

[0049] The tracking mode refers to the process whereby, after the radar discovers a target and obtains its parameters through the aforementioned search mode, it continuously detects the target at the target parameters or within a certain range that includes the target parameters, and updates the target parameters based on the detection results.

[0050] Please see Figure 2 , Figure 2 The parameter determination method for wireless sensing in search mode provided in this application embodiment includes:

[0051] Step 201: The third device determines the initial value of the first parameter based on the radar cross-section (RCS) of the target being sensed and the maximum effective range of radar detection, which are included in the sensing requirements. The value of the first parameter is determined by a first product, which is the product of the transmit power of the first signal, the aperture gain of the transmitting end, and the aperture gain of the receiving end.

[0052] Among them, the effective range refers to the target distance at which the radar can detect or image target parameters to meet the predetermined performance index level, and the unit can be meters.

[0053] In radar detection, the transmit power and beam gain together determine the signal power of the target's reflected echo, thus determining the maximum effective range and the SNR at a given signal-to-noise ratio (SNR). The relationship is as follows:

[0054]

[0055] SNR∝P t ·G t ·G r

[0056] In the above formula, R max P represents the maximum effective range of radar detection. t G t and G r These represent transmit power, transmitter antenna gain, and receiver antenna gain, respectively, all in real units (not dB); SNR represents the signal-to-noise ratio at a given range. Specifically, for monostatic radar, G... t =G r .

[0057] In order to optimize system performance and improve resource utilization through joint adaptive adjustment of transmit power and aperture gain, embodiments of this application set a first parameter, which is P. t ·G t ·G r Among them, P t Indicates transmission power; G t Indicates the transmitter aperture gain; G r This represents the receiver aperture gain. It should be noted that the above P... t G t and G r All values ​​are in real units (not dB). Specifically, in the case of a single-station radar, G... t =G r .

[0058] In search mode, the initial value of the first parameter is set to cover the maximum effective distance requirement and perception accuracy requirement for typical targets in the perception requirements.

[0059] For example, if the target is a vehicle, pedestrian, or drone, a typical RCS value σ for the target is set by combining the results of sensing channel measurements and channel modeling. RCS For example, a typical pedestrian RCS is -3dBm. 2 A typical RCS for a motorcycle is 0 dBm. 2 A typical RCS for a van is 13dBm. 2 Among them, dBm 2 The unit for area is square meters (m). 2 The logarithm of .

[0060] For example, the perception requirements specify the range of the target to be perceived, setting the maximum effective range R for radar detection. max .

[0061] Optionally, for a single-station radar, the initial value of the first parameter is C. i With maximum effective distance R max It is proportional to the fourth power and to the RCS value σ RCS Inversely proportional, that is:

[0062] Optionally, for bistatic radar, the initial value of the first parameter is C. i Distance R of the target relative to the launch terminal t and the distance R between the target and the receiver r The product of the two is proportional to the square of the maximum value and to the RCS value σ. RCS Inversely proportional, that is:

[0063] Furthermore, under the constraint of the first parameter, the transmit power P is set.t Transmitter aperture gain G t Receiver aperture gain G r That is, the method further includes:

[0064] The third device configures the transmission power, transmission aperture gain, and receiver aperture gain of the first signal based on the initial value of the first parameter, the capability information of the transmitting device, and the capability information of the receiving device.

[0065] The capability information includes a set of information on the current available transmit power configuration and antenna array configuration of the corresponding device.

[0066] As an optional embodiment, the third device configures the transmission power, transmitting aperture gain, and receiving aperture gain of the first signal based on the initial value of the first parameter, including:

[0067] The third device configures the transmission power, transmission aperture gain, and receiver aperture gain of the first signal according to the initial value of the first parameter, the capability information of the transmitting device, and the capability information of the receiving device, either in a power-priority mode or an aperture-priority mode.

[0068] The power priority method includes: prioritizing the configuration of the transmission power to meet the requirements of the first parameter; if the transmission power reaches the upper limit of the configured power range but still cannot meet the requirements of the first parameter, then the requirements of the first parameter are met by configuring the aperture gain of the transmitting end and / or the aperture gain of the receiving end.

[0069] The aperture priority method includes: prioritizing the configuration of the transmitter aperture gain and / or receiver aperture gain to meet the requirements of the first parameter; if the transmitter aperture gain and / or receiver aperture gain reach the upper limit of the aperture gain but still cannot meet the requirements of the first parameter, then the transmission power is configured to meet the requirements of the first parameter.

[0070] It should be noted that the third device determines whether to use a power-priority method or an aperture-priority method to set the transmission power, transmitter aperture gain, and receiver aperture gain of the first signal based on the resource occupancy of the sensing node and / or the indication of the sensing function network element.

[0071] For bistatic radar, the methods for configuring the transmitter aperture gain and / or receiver aperture gain include: prioritizing the transmitter aperture gain or prioritizing the receiver aperture gain.

[0072] The preferred method for transmitting aperture gain includes: prioritizing the configuration of transmitting aperture gain; if the configuration of transmitting aperture gain reaches the upper limit of transmitting aperture gain but still cannot meet the requirements of the first parameter, then the receiving aperture gain is configured to meet the requirements of the first parameter.

[0073] The priority of receiver aperture gain includes: prioritizing the configuration of receiver aperture gain; if the configuration of receiver aperture gain reaches the upper limit of receiver aperture gain but still cannot meet the requirements of the first parameter, then the requirement of the first parameter is met by configuring transmitter aperture gain.

[0074] Optionally, the third device may determine whether to configure the aperture gain in a transmitter-end aperture gain priority manner or a receiver-end aperture gain priority manner based on resource occupancy and / or the indication of the sensing function network element.

[0075] For example, for a monostation radar, the configuration priorities for transmit power and aperture gain, from highest to lowest, are as follows:

[0076] ① Transmit power, aperture gain; or,

[0077] ②Aperture gain and transmit power.

[0078] For example, in a bistatic radar, aperture gain is divided into transmitter aperture gain and receiver aperture gain. Therefore, the configuration priority from high to low is as follows:

[0079] ① Transmit power, transmitter aperture gain, receiver aperture gain;

[0080] ② Transmit power, receiver aperture gain, and transmitter aperture gain;

[0081] ③ Transmitter aperture gain, transmit power, receiver aperture gain;

[0082] ④ Transmitter aperture gain, receiver aperture gain, and transmit power;

[0083] ⑤ Receiver aperture gain, transmit power, and transmitter aperture gain;

[0084] ⑥ Receiver aperture gain, transmitter aperture gain, and transmitter power.

[0085] Optionally, the above-mentioned transmission power can be set continuously, that is, any value within the pre-configured power range can be set to the above-mentioned transmission power value; or, the above-mentioned transmission power can be set in steps, that is, the corresponding transmission power value is set at a certain step interval within the pre-configured power range.

[0086] The aperture gain configuration method can be as follows: adding or reducing several array elements in the azimuth and / or elevation directions of the two-dimensional antenna array. Taking an 8×8 antenna array as an example, the number of configurable antenna elements is as follows: Figure 3 As shown, the configurable aperture gain is Figure 3 The aperture gain corresponding to the number of configurable antenna array elements.

[0087] Optionally, during the aperture configuration process, the angular resolution requirements of the sensing needs should also be met, especially the aperture configuration of the receiving end should meet the angular resolution requirements; that is, the configured aperture gain should be greater than or equal to the aperture gain required for the angular resolution, which will not be elaborated further below.

[0088] Optionally, the transmission power configuration should also consider the transmission power requirements of the communication function and the relevant regulations limiting the maximum transmission power; specifically, the transmission power should be greater than or equal to the transmission power required for the communication function, and less than or equal to the maximum transmission power. Optionally, different transmitting devices can be set with different maximum transmission powers, which are not specifically limited here.

[0089] Alternatively, the setting of the transmission power also needs to take into account the large-scale and small-scale fading of signal transmission in the integrated sensing scenario; a certain power margin, such as 3dB, needs to be reserved on the basis of the transmission power obtained according to the above relationship. The actual power margin needs to be set according to the channel modeling situation, and no specific limitation is made here.

[0090] It should be noted that the transmission power settings in the subsequent description of this application must meet the transmission power requirements of the communication function, the maximum transmission power requirements of relevant regulations, and the power margin for large-scale and small-scale fading, which will not be repeated here.

[0091] Optionally, the aforementioned third device is a transmitting device for the first signal, a receiving device for the first signal, or a sensing function network element. The sensing function network element mentioned in this application refers to a network node in the core network and / or radio access network responsible for at least one function such as sensing request processing, sensing resource scheduling, sensing information interaction, and sensing data processing. It can be an upgrade based on the existing Access and Mobility Management Function (AMF) or Location Management Function (LMF) in the 5G network, or it can be other existing or newly defined network nodes. For ease of description, it is uniformly referred to as a sensing function network element in this application.

[0092] In the scenario of bistatic radar (or bi-static radar), where the transmitting and receiving devices are different devices, the connection relationship and corresponding information interaction methods among the sensing network element, the transmitting device, and the receiving device can be divided into the following three cases:

[0093] 1) Any two of the sensing function network element, transmitting equipment, and receiving equipment have a direct communication connection, such as... Figure 4 As shown; at this point, any two can directly exchange information.

[0094] 2) The sensing network element has direct communication connections with both the transmitting and receiving devices, but there is no direct communication connection between the transmitting and receiving devices, such as... Figure 5 As shown; at this time, the sensing function network element can directly interact with the transmitting or receiving device, while the information interaction between the transmitting and receiving devices needs to be forwarded through the sensing function network element.

[0095] 3) The sensing function network element is only directly connected to either the transmitting or receiving device, and there is a direct communication connection between the transmitting and receiving devices, such as... Figure 6 As shown, devices with direct communication with the sensing function network element can directly interact with the sensing function network element; devices without direct communication with the sensing function network element need to be forwarded through devices with direct communication with the sensing function network element.

[0096] For scenarios involving monostatic radar (or single-base radar), where the transmitting and receiving devices are the same device, the connection between the sensing network element and the transmitting device (i.e., the receiving device) is generally a direct communication connection, meaning they can directly exchange information; or, the connection is established through a third-party device, allowing them to exchange information.

[0097] In at least one embodiment of this application, the third device that determines the initial value of the first parameter in step 201 can be a transmitting device, a receiving device, or a sensing function network element.

[0098] In another optional embodiment of this application, the device configuring the transmit power, transmit aperture gain, and receive aperture gain of the first signal can be a transmitter device, a receiver device, or a sensing function network element. Optionally, the device determining the initial value of the first parameter and the device configuring the transmit power, transmit aperture gain, and receive aperture gain can be the same device or different devices; if they are different devices, the device determining the initial value of the first parameter sends the initial value of the first parameter to other devices, which then configure the transmit power, transmit aperture gain, and receive aperture gain.

[0099] As an optional embodiment, when the third device is a transmitting device, the method further includes:

[0100] The transmitting device sends the configured receiver aperture gain to the receiving device; correspondingly,

[0101] The transmitting device transmits the first signal according to the configured transmission power of the first signal and the transmitting aperture gain;

[0102] The receiving device receives the echo signal of the first signal according to the configured receiving aperture gain.

[0103] As another optional embodiment, when the third device is a receiving device, the method further includes:

[0104] The receiving device sends the configured first signal's transmit power and transmit aperture gain to the transmitting device; correspondingly,

[0105] The transmitting device transmits the first signal according to the configured transmission power of the first signal and the transmitting aperture gain;

[0106] The receiving device receives the echo signal of the first signal according to the configured receiving aperture gain.

[0107] As another optional embodiment, when the third device is a sensing function network element, the method further includes:

[0108] The sensing network element sends the configured transmit power and transmit aperture gain of the first signal to the transmitting device, and sends the configured receive aperture gain to the receiving device; correspondingly,

[0109] The transmitting device transmits the first signal according to the configured transmission power of the first signal and the transmitting aperture gain;

[0110] The receiving device receives the echo signal of the first signal according to the configured receiving aperture gain.

[0111] Optionally, if the radar signal processing result of the receiver or sensing function network element indicates that the first target has been found after the transmitting equipment sends the first signal, then the transmission power and aperture gain joint adaptation method in tracking mode is adopted. If the first target is not found, it is assumed that there is no target with a corresponding RCS within the range described in the sensing requirements.

[0112] In summary, in the embodiments of this application, the third device adaptively adjusts the product of the transmission power, the transmitting aperture gain, and the receiving aperture gain of the first signal according to the sensing requirements in the search mode, so as to optimize the allocation of the system's transmission power and aperture gain resources while meeting the sensing requirements, thereby optimizing the performance and power resource utilization of the integrated communication and sensing system.

[0113] Please see Figure 7 , Figure 7 The parameter determination method for wireless sensing in tracking mode provided in this application embodiment includes:

[0114] Step 701: The first device determines first parameter adjustment information based on the echo signal quality of the first target or the parameters of the first target; the first parameter adjustment information is used to indicate signal transmission and echo signal reception at the second time.

[0115] Wherein, the first device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target; or, the first device receives the echo signal quality of the first target or the parameters of the first target from the second device, and the second device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target.

[0116] Wherein, the second time point is after the first time point; the value of the first parameter is determined by the first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain; the parameters of the first target include at least one of the radar cross-section (RCS) of the first target and the range information of the first target.

[0117] Optionally, in this embodiment, the first signal can be sent by a first device or a second device. For example, in a monostatic radar scenario, the first device sends the first signal, and the first device detects the echo signal of the first signal sent at a first moment to obtain the echo signal quality of the first target or the parameters of the first target; or, in a monostatic radar scenario, the first device sends the first signal, and the first device detects the echo signal of the first signal sent at a first moment to obtain echo data, and sends the echo data to the second device, which then obtains the echo signal quality of the first target or the parameters of the first target based on the echo data. As another example, in a bistatic radar scenario, the second device sends the first signal, and the first device detects the echo signal of the first signal sent at a first moment to obtain the echo signal quality of the first target or the parameters of the first target; or, in a bistatic radar scenario, the second device sends the first signal, and the first device detects the echo signal of the first signal sent at a first moment to obtain echo data, and sends the echo data to a sensing function network element, which then obtains the echo signal quality of the first target or the parameters of the first target based on the echo data.

[0118] In tracking mode, the first device adaptively adjusts the first parameter based on the signal processing results of the target echo, and then performs joint adaptive adjustment of the transmit power and aperture gain.

[0119] The first parameter is P. t ·G t ·G r Among them, P tIndicates transmission power; G t Indicates the transmitter aperture gain; G r This represents the receiver aperture gain. It should be noted that the above P... t G t and G r All values ​​are in real units (not dB). Specifically, in the case of a single-station radar, G... t =G r .

[0120] Optionally, the device that detects the first target can be a receiving device or a sensing function network element. For example, the receiving device acquires the echo data of the first signal and directly detects the first target; or, after acquiring the echo data of the first signal, the receiving device transmits the echo data to the sensing function network element, which then detects the first target; or, after acquiring the echo data of the first signal, the receiving device performs some calculations in radar signal processing to obtain intermediate measurements, and then transmits the intermediate measurements to the sensing function network element, which then detects the first target.

[0121] Optionally, in the embodiments of this application, the device that determines the first parameter adjustment information can be a transmitting device, a receiving device, or a sensing function network element.

[0122] Alternatively, the device that detects the first target and the device that determines the first parameter adjustment information can be the same device or different devices, without specific limitations here.

[0123] As an optional embodiment, when the device determining the first parameter adjustment information is a transmitting device, the transmitting device can directly configure the transmission power, transmitting aperture gain, and receiving aperture gain of the first signal according to the first parameter adjustment information; or, the method further includes: the transmitting device sending the first parameter adjustment information to the receiving device or sensing function network element; and the receiving device or sensing function network element configuring the transmission power, transmitting aperture gain, and receiving aperture gain of the first signal according to the first parameter adjustment information.

[0124] As another optional embodiment, when the device that determines the first parameter adjustment information is a receiving device, the receiving device can directly configure the transmission power, transmitting aperture gain, and receiving aperture gain of the first signal according to the first parameter adjustment information; or, the method further includes: the receiving device sending the first parameter adjustment information to the transmitting device or the sensing function network element; and the transmitting device or the sensing function network element configuring the transmission power, transmitting aperture gain, and receiving aperture gain of the first signal according to the first parameter adjustment information.

[0125] As another optional embodiment, when the first device is a sensing function network element, the sensing function network element can directly configure the transmission power, transmitting aperture gain, and receiving aperture gain of the first signal according to the first parameter adjustment information; or, the method further includes: the sensing function network element sending the first parameter adjustment information to the transmitting device or the receiving device; and the transmitting device or the receiving device configuring the transmission power, transmitting aperture gain, and receiving aperture gain of the first signal according to the first parameter adjustment information.

[0126] The first parameter adjustment information includes any one of the following:

[0127] The first value of the first parameter;

[0128] The ratio of the first value of the first parameter to the second value of the first parameter;

[0129] The difference between the first value of the first parameter and the second value of the first parameter;

[0130] The second value of the first parameter is determined by the transmit power and transmit aperture gain corresponding to the signal transmission at the first moment, and the receive aperture gain corresponding to the echo signal reception.

[0131] In at least one embodiment of this application, the method further includes:

[0132] The first device determines the first value of the first parameter based on the first parameter adjustment information;

[0133] The first device configures the transmission power, transmission aperture gain, and receiving aperture gain of the first signal based on the first value of the first parameter, the capability information of the transmitting device, and the capability information of the receiving device.

[0134] The capability information includes a set of information on the current available transmit power configuration and antenna array configuration of the corresponding device.

[0135] As an optional embodiment, when the device configuring the transmit power, transmit aperture gain, and receive aperture gain of the first signal is a transmitter device, the method further includes:

[0136] The transmitting device sends the configured receiver aperture gain to the receiving device; correspondingly,

[0137] The transmitting device transmits the first signal according to the configured transmission power and transmitting aperture gain of the first signal;

[0138] The receiving device receives the echo signal of the first signal according to the configured receiving aperture gain.

[0139] As another optional embodiment, when the device configuring the transmit power, transmit aperture gain, and receive aperture gain of the first signal is a receive device, the method further includes:

[0140] The receiving device sends the configured first signal's transmit power and transmit aperture gain to the transmitting device; correspondingly,

[0141] The transmitting device transmits the first signal according to the configured transmission power and transmitting aperture gain of the first signal;

[0142] The receiving device receives the echo signal of the first signal according to the configured receiving aperture gain.

[0143] As another optional embodiment, when the device configuring the transmit power, transmit aperture gain, and receive aperture gain of the first signal is a sensing network element, the method further includes:

[0144] The sensing network element sends the transmission power and transmitter aperture gain of the configured first signal to the transmitting device, and sends the receiver aperture gain to the receiving device; correspondingly,

[0145] The transmitting device transmits the first signal according to the configured transmission power and transmitting aperture gain of the first signal;

[0146] The receiving device receives the echo signal of the first signal according to the configured receiving aperture gain.

[0147] In at least one embodiment of this application, the first device configures the transmission power, transmitting aperture gain, and receiving aperture gain of the first signal according to a first value of the first parameter, including:

[0148] The first device configures the transmission power, transmission aperture gain, and receiver aperture gain of the first signal according to the first value of the first parameter, the capability information of the transmitting device, and the capability information of the receiving device, in either a power-priority mode or an aperture-priority mode.

[0149] The power priority method includes: prioritizing the configuration of the transmission power to meet the requirements of the first parameter; if the transmission power reaches the upper limit of the configured power range but still cannot meet the requirements of the first parameter, then the requirements of the first parameter are met by configuring the aperture gain of the transmitting end and / or the aperture gain of the receiving end.

[0150] The aperture priority method includes: prioritizing the configuration of the transmitter aperture gain and / or receiver aperture gain to meet the requirements of the first parameter; if the transmitter aperture gain and / or receiver aperture gain reach the upper limit of the aperture gain but still cannot meet the requirements of the first parameter, then the transmission power is configured to meet the requirements of the first parameter.

[0151] It should be noted that the first device determines whether to use a power-priority method or an aperture-priority method to set the transmission power, transmission aperture gain, and receiver aperture gain of the first signal based on the resource occupancy of the sensing node and / or the indication of the sensing function network element.

[0152] For bistatic radar, the methods for configuring the transmitter aperture gain and / or receiver aperture gain include: prioritizing the transmitter aperture gain or prioritizing the receiver aperture gain.

[0153] The preferred method for transmitting aperture gain includes: prioritizing the configuration of transmitting aperture gain; if the configuration of transmitting aperture gain reaches the upper limit of transmitting aperture gain but still cannot meet the requirements of the first parameter, then the receiving aperture gain is configured to meet the requirements of the first parameter.

[0154] The priority of receiver aperture gain includes: prioritizing the configuration of receiver aperture gain; if the configuration of receiver aperture gain reaches the upper limit of receiver aperture gain but still cannot meet the requirements of the first parameter, then the requirement of the first parameter is met by configuring transmitter aperture gain.

[0155] Optionally, the first device determines whether to configure the aperture gain using a transmitter aperture gain priority method or a receiver aperture gain priority method based on resource occupancy and / or the indication of the sensing function network element.

[0156] For example, for a monostation radar, the configuration priorities for transmit power and aperture gain, from highest to lowest, are as follows:

[0157] ① Transmit power, aperture gain; or,

[0158] ②Aperture gain and transmit power.

[0159] For example, in a bistatic radar, aperture gain is divided into transmitter aperture gain and receiver aperture gain. Therefore, the configuration priority from high to low is as follows:

[0160] ① Transmit power, transmitter aperture gain, receiver aperture gain;

[0161] ② Transmit power, receiver aperture gain, and transmitter aperture gain;

[0162] ③ Transmitter aperture gain, transmit power, receiver aperture gain;

[0163] ④ Transmitter aperture gain, receiver aperture gain, and transmit power;

[0164] ⑤ Receiver aperture gain, transmit power, and transmitter aperture gain;

[0165] ⑥ Receiver aperture gain, transmitter aperture gain, and transmitter power.

[0166] Optionally, the above-mentioned transmission power can be set continuously, that is, any value within the pre-configured power range can be set to the above-mentioned transmission power value; or, the above-mentioned transmission power can be set in steps, that is, the corresponding transmission power value is set at a certain step interval within the pre-configured power range.

[0167] The aperture gain configuration method can be: adding or reducing several array elements in the azimuth and / or elevation directions of the two-dimensional antenna array.

[0168] Optionally, during the aperture configuration process, the angular resolution requirements of the sensing needs should also be met, especially the aperture configuration of the receiving end should meet the angular resolution requirements; that is, the configured aperture gain should be greater than or equal to the aperture gain required for the angular resolution, which will not be elaborated further below.

[0169] Among them, angular resolution refers to the smallest angle between two targets that radar can distinguish, and the unit can be degrees or radians.

[0170] Optionally, the transmission power configuration should also consider the transmission power requirements of the communication function and the relevant regulations limiting the maximum transmission power; specifically, the transmission power should be greater than or equal to the transmission power required for the communication function, and less than or equal to the maximum transmission power. Optionally, different transmitting devices can be set with different maximum transmission powers, which are not specifically limited here.

[0171] Alternatively, the setting of the transmission power also needs to take into account the large-scale and small-scale fading of signal transmission in the integrated sensing scenario; a certain power margin, such as 3dB, needs to be reserved on the basis of the transmission power obtained according to the above relationship. The actual power margin needs to be set according to the channel modeling situation, and no specific limitation is made here.

[0172] It should be noted that the transmission power settings in the subsequent description of this application must meet the transmission power requirements of the communication function, the maximum transmission power requirements of relevant regulations, and the power margin for large-scale and small-scale fading, which will not be repeated here.

[0173] In at least one embodiment of this application, the echo signal quality of the first target includes at least one of the following:

[0174] The echo signal power of the first target;

[0175] The echo signal-to-noise ratio (SNR) of the first target;

[0176] The interference-to-noise ratio (SINR) of the echo signal of the first target;

[0177] The reference signal received power RSRP of the echo signal of the first target;

[0178] The reference signal reception quality (RSRQ) of the echo signal of the first target.

[0179] Optionally, the echo signal power of the first target includes at least one of the following:

[0180] If the first signal is a sensing-dominant signal or a communication-sensing integrated signal, then the echo signal power of the first target is the total power of the echo signal.

[0181] If the first signal is a communication-dominant signal or a sensing-enhanced communication-dominant signal, such as a 5G NR signal or a Wi-Fi signal, then the echo signal power of the first target is the power of the preamble, and / or synchronization signal, and / or reference signal in the echo signal; the reference signal may be a demodulation reference signal (DM-RS), a phase-tracking reference signal (PT-RS), a channel state information reference signal (CSI-RS), a positioning reference signal (P-RS), a sounding reference signal (SRS), etc.

[0182] In at least one embodiment of this application, in step 701, the first device determines the first parameter adjustment information based on the echo signal quality of the first target;

[0183] The first device determines the first parameter adjustment information based on the quality of the echo signal from the first target at the first moment;

[0184] or,

[0185] The first device determines the first parameter adjustment information based on the predicted distance of the first target at the second time moment and the quality of the echo signal of the first target at the first time moment.

[0186] In at least one embodiment of this application, the objective of adaptively adjusting the first parameter based on the echo signal quality of the first target includes:

[0187] Objective 1: To maintain the echo signal quality of the first target near a first preset echo quality. This can be expressed as P... r0 ±ΔP r , where P r0 The first preset echo quality, ΔP rThis is the allowable echo quality error.

[0188] Alternatively, objective 2 is to maintain the echo signal quality of the first target within a first echo quality range. The pre-defined first echo quality range can be expressed as [P] rmin ,P rmax ], where P rmin The lower limit of the first echo quality range, P rmax The upper limit of the preset echo signal power range is set.

[0189] Optionally, the method further includes:

[0190] Based on a first condition, determine the first preset echo quality or the first echo quality range; the first condition includes at least one of the following:

[0191] The quality of the echo signal required by the sensing indicators in the sensing needs;

[0192] The quality of the echo signal corresponding to the required transmit signal power for the communication function in a synergistic application;

[0193] In applications of integrated induction and communication, the interference level of the communication function limits the required echo signal quality.

[0194] For example, when the first preset echo quality is a preset echo signal power value, the method for determining the preset echo signal power value includes:

[0195] a) The echo signal power value that meets the requirements of the sensing indicators in the sensing needs, or the echo signal power value that meets the requirements of the sensing indicators in the sensing needs and leaves a certain margin. The sensing indicators may be: sensing accuracy, detection probability / false alarm probability.

[0196] b) The echo signal power value corresponding to the transmit signal power required to meet the communication quality of the communication function in the application of inductive integration, and the echo signal power value required by the interference level limit.

[0197] For example, when the first echo quality range is the echo signal power range, the method for determining the lower limit of this echo signal power range includes:

[0198] a) The minimum echo signal receiving power that meets the sensing index requirements in the sensing requirements, wherein the sensing index requirements may be: sensing accuracy, detection probability / false alarm probability.

[0199] b) The echo signal power value corresponding to the critical transmit signal power value that causes the communication function beam to fail in the application of inductive and sensor integration.

[0200] The method for determining the upper limit of the echo signal power range includes:

[0201] a) The echo signal power corresponding to a certain level of the sensing index, wherein the sensing index requirements may be: sensing accuracy, detection probability / false alarm probability;

[0202] b) The echo signal power value must meet the interference level limit for communication functions in integrated induction and communication applications.

[0203] In at least one embodiment of this application, the first device determines first parameter adjustment information based on the quality of the echo signal of the first target at a first moment, including:

[0204] If it is determined that the echo signal quality of the first target will be maintained near the first preset echo quality, the first parameter adjustment information is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, and the first preset echo quality.

[0205] or,

[0206] If it is determined that the echo signal quality of the first target will be maintained within the first echo quality range, the first parameter adjustment information is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, and the first echo quality range.

[0207] Specifically, the adjustment information for the first parameter is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, and the first preset echo quality, including:

[0208] Based on the first formula, determine the first value of the first parameter; the first formula is:

[0209]

[0210] Where C′ is the first value of the first parameter; C is the second value of the first parameter; P r0 P is the first preset echo quality; r The quality of the echo signal at the first moment for the primary target.

[0211] Specifically, the adjustment information for the first parameter is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, and the range of the first echo quality, including:

[0212] Based on the second formula, determine the first value of the first parameter; the second formula is:

[0213]

[0214] Where C′ is the first value of the first parameter; C is the second value of the first parameter; P rThe quality of the echo signal at the first moment for the primary target;

[0215] If the echo signal quality of the first target at the first moment is greater than the upper limit echo quality of the first echo quality range, then P is the upper limit echo quality of the first echo quality range; therefore, the second formula is: P rmax This is the upper limit echo quality of the first echo quality range.

[0216] Alternatively, if the echo signal quality of the first target at a first moment is less than the lower limit echo quality of the first echo quality range, then P is the lower limit echo quality of the first echo quality range; therefore, the second formula is... P rmin The lower limit of the echo quality within the first echo quality range.

[0217] Alternatively, in any case, P is the arithmetic or geometric mean of the upper and lower echo qualities of the first echo quality range; then the second formula is: P rmid This is the arithmetic or geometric mean of the upper and lower echo qualities within the first echo quality range. The arithmetic mean is understood as (P... rmax +P rmin ) / 2; the geometric mean can be understood as

[0218] In at least one embodiment of this application, the first device determines first parameter adjustment information based on the predicted distance value of the first target at a second time moment and the echo signal quality of the first target at a first time moment, including:

[0219] If it is determined that the echo signal quality of the first target should be maintained near the first preset echo quality, the first parameter adjustment information is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, the first preset echo quality, and the distance prediction value of the first target at the second moment.

[0220] or,

[0221] If it is determined that the echo signal quality of the first target will be maintained within the first echo quality range, the first parameter adjustment information is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, the first echo quality range, and the distance prediction value of the first target at the second moment.

[0222] Optionally, the distance prediction for the first target at the second moment is based on maintaining the trajectory of the first target and obtaining the distance prediction value at the second moment by predicting the position of the first target at the second moment.

[0223] The prediction method is based on the following assumptions: When tracking the first target, the typical target in a sensor-integrated application (e.g., vehicles, pedestrians) moves at a low speed relative to the sensing update rate, resulting in minimal change in the target state between adjacent radar detections. This minimal change in target state primarily refers to minimal change in the target's RCS (Radar Cross Section); the target's RCS can be considered almost constant across two or more consecutive radar detections. This is satisfied under two conditions: first, the target's maneuverability is minimal, i.e., its acceleration is small, and the target's position and velocity do not change significantly, allowing for the use of linear filtering algorithms such as Kalman filtering; second, the sensing channel characteristics (large-scale and small-scale fading characteristics) do not change significantly, especially the small-scale fading characteristics. The prediction method is implemented using equipment, and no restrictions are imposed here.

[0224] The step of determining the first parameter adjustment information based on the second value of the first parameter, the echo signal quality of the first target at the first moment, the first preset echo quality, and the distance prediction value of the first target at the second moment includes:

[0225] The first value of the first parameter is determined according to the third formula; the third formula includes:

[0226] or,

[0227] Where C′ is the first value of the first parameter; C is the second value of the first parameter; P r0 P is the first preset echo quality; r R represents the echo signal quality of the first target at the first moment; R' represents the distance between the first target and the signal transceiver at the first moment in a monostatic radar scenario; R' represents the predicted distance between the first target and the signal transceiver at the second moment in a monostatic radar scenario; R t R represents the distance between the first target and the transmitting device at the first moment in a bistatic radar scenario. t ′ represents the predicted distance between the first target and the transmitting equipment at the second time point in a bistatic radar scenario; R r R represents the distance between the first target and the receiving device at the first moment in a bistatic radar scenario. r ′ represents the predicted distance between the first target and the receiving device at the second time point in a bistatic radar scenario.

[0228] Specifically, based on the second value of the first parameter, the echo signal quality of the first target at the first moment, the range of the first echo quality, and the predicted distance of the first target at the second moment, the adjustment information of the first parameter is determined, including:

[0229] According to the fourth formula, the first value of the first parameter is determined; the fourth formula includes:

[0230] or,

[0231] Where C′ is the first value of the first parameter; C is the second value of the first parameter; P r R represents the echo signal quality of the first target at the first moment; R' represents the distance between the first target and the signal transceiver at the first moment in a monostatic radar scenario; R' represents the predicted distance between the first target and the signal transceiver at the second moment in a monostatic radar scenario; R t R represents the distance between the first target and the transmitting device at the first moment in a bistatic radar scenario. t ′ represents the predicted distance between the first target and the transmitting equipment at the second time point in a bistatic radar scenario; R r R represents the distance between the first target and the receiving device at the first moment in a bistatic radar scenario. r ′ represents the predicted distance between the first target and the receiving device at the second time point in a bistatic radar scenario;

[0232] If the echo signal quality of the first target at the first moment is greater than the upper limit echo quality of the first echo quality range, then P is the upper limit echo quality of the first echo quality range; therefore, the fourth formula is... or, P rmax This is the upper limit echo quality of the first echo quality range.

[0233] Alternatively, if the echo signal quality of the first target at the first moment is less than the lower limit echo quality of the first echo quality range, then P is the lower limit echo quality of the first echo quality range; therefore, the fourth formula is... or, P rmin The lower limit of the echo quality within the first echo quality range.

[0234] Alternatively, in any case, P is the arithmetic or geometric mean of the upper and lower echo qualities of the first echo quality range; then the fourth formula is: or, P rmid This is the arithmetic or geometric mean of the upper and lower echo qualities within the first echo quality range. The arithmetic mean is understood as (P... rmax +P rmin ) / 2; the geometric mean can be understood as

[0235] In at least one embodiment of this application, before determining the first parameter adjustment information at the second time moment based on the parameters of the first target in step 701, the method further includes:

[0236] The RCS of the first target is determined based on the echo signal power of the first target and the first distance of the first target relative to the transceiver device.

[0237] or,

[0238] The RCS of the first target is determined based on the echo signal power of the first target, the second distance of the first target relative to the transmitting device, and the third distance of the first target relative to the receiving device.

[0239] In this embodiment, the RCS of the first target is specifically the real-time RCS of the first target. The real-time RCS of the first target is calculated based on the real-time echo power of the target signal and the real-time distance of the target. In the integrated sensing application scenario, the real-time RCS of the first target changes with the relative position of the first target and the radar. When the same target is detected from different angles, the RCS has a certain range of variation. For example, when a van is detected from different angles, its RCS range is approximately -5dBm2 to 25dBm2 (carrier frequency 26GHz); when a pedestrian is detected from different angles, its RCS range is approximately -10dBm2 to 0dBm2 (carrier frequency 26GHz). After the radar intercepts the first target, the actual RCS value of the first target under the current observation can be calculated from the echo signal power of the first target and the distance of the first target relative to the radar.

[0240] For example, in a monostatic radar scenario, the real-time RCS of the target is calculated based on the echo signal power and the target distance R; in a bistatic radar scenario, the real-time RCS of the target is calculated based on the echo signal power, the target distance relative to the transmitter, and the target distance relative to the receiver.

[0241] It should be noted that when the echo signal contains reflected echoes from multiple targets, the echo signal component corresponding to the currently tracked target is identified by filtering in the time delay domain and angle domain, and the echo signal power of the currently tracked target is calculated based on this, thereby deriving the RCS of the current target.

[0242] Accordingly, in step 701, determining the first parameter adjustment information based on the parameters of the first target includes:

[0243] In a single-station radar scenario, the first value of the first parameter is directly proportional to the fourth power of the first distance and inversely proportional to the RCS of the first target.

[0244] or,

[0245] In a bistatic radar scenario, the first value of the first parameter is proportional to the square of the product of the second and third distances and inversely proportional to the RCS of the first target.

[0246] It should be noted that the transmitting and receiving devices mentioned in the embodiments of the present invention are one device in a monostatic radar scenario and different devices in a bistatic radar scenario.

[0247] It should be further noted that the first moment and the second moment mentioned in the embodiments of the present invention can be understood as at least one first sensing frame and at least one second sensing frame. The transmission, reception and signal processing of the signal are all based on the sensing frame as the time unit. That is to say, the value of the first parameter of the signal remains unchanged within the same sensing frame. The adaptive adjustment method of transmission power and aperture gain provided in the embodiments of this application adjusts the transmission power and aperture gain of the transmitted signal in the next sensing frame.

[0248] In summary, in the embodiments of this application, the first device adaptively adjusts the product of the transmission power of the first signal, the transmitting end aperture gain, and the receiving end aperture gain according to the echo signal quality of the first target or the parameters of the first target, so as to optimize the allocation of the system's transmission power and aperture gain resources while meeting the sensing requirements, thereby optimizing the performance and power resource utilization of the integrated communication and sensing system.

[0249] To more clearly describe the parameter determination method for wireless sensing provided in the embodiments of this application, two examples are given below.

[0250] Example 1: Joint adaptive control of transmit power and aperture gain of a single-station radar

[0251] 1. At the initial moment of sensing, the transmitting device or sensing function network element sets the sensing signal configuration parameters based on the sensing target parameters, sensing index requirements and sensing prior information in the sensing requirements, combined with the capability information of the transmitting device;

[0252] The capability information of the transmitting device includes: the hardware configuration, software configuration, current hardware and software resource usage, and the service type and priority information currently occupying the hardware and software resources of the transmitting device;

[0253] The sensing target parameters include at least one of the following:

[0254] Distance / Delay;

[0255] Velocity / Doppler;

[0256] angle.

[0257] The perception indicators include at least one of the following:

[0258] Distance / angle / velocity resolution;

[0259] Distance / angle / velocity measurement accuracy;

[0260] Distance / angle / velocity measurement range;

[0261] Target RCS requirements;

[0262] Sensing the target's maneuvering characteristics (acceleration);

[0263] Sensing data rate (the rate at which the parameters of the sensed target are updated per unit time, in Hz);

[0264] Detection probability / False alarm probability;

[0265] The purpose of the prior information in perception is to narrow the temporal / spatial operating range of perception, including at least one of the following:

[0266] The target parameters are the same, but the perception indicators are different: the perception indicators of prior information are worse than those of the perception requirements; for example, the target parameter is distance, and the ranging accuracy required in the perception indicators is on the order of cm, while the distance accuracy in the prior information is on the order of m.

[0267] Different target parameters: The information given in the prior information is not the information corresponding to the target parameter; for example, the target parameter is distance, but the prior information gives the target angle.

[0268] The sensing signal configuration parameters include at least one of the following:

[0269] Signal frequency and operating bandwidth; if the first signal is an OFDM signal, it also includes the OFDM signal subcarrier spacing, the number of REs in the frequency domain of the sensing signal, and the number of OFDM symbols in the time domain of the sensing signal.

[0270] Transmit / receive beamwidth, beam pointing, beam scanning range;

[0271] The duration of the perceived frame (also known as the perceived burst);

[0272] Duty cycle and pulse period of the pulse signal;

[0273] Transmission power;

[0274] The process of setting the sensing signal configuration parameters according to the sensing index requirements includes at least one of the following:

[0275] Set the operating bandwidth according to the ranging resolution requirements;

[0276] Set the transmit beamwidth and receive beamwidth according to the angle measurement resolution requirements;

[0277] Set the duration of the sensing burst according to the speed measurement resolution requirements;

[0278] The number of OFDM symbols in the time domain of the OFDM signal can be set according to the ranging range requirements, or the duty cycle and pulse period of the pulse signal.

[0279] Set the transmit power and transmit / receive beam gain according to the ranging range, target RCS, and ranging / angle / velocity accuracy requirements;

[0280] Set the beam scanning range according to the angle measurement range requirements;

[0281] Set the subcarrier spacing of the OFDM signal, the number of frequency domain intervals (REs), or the pulse period of the pulse signal according to the speed measurement range requirements.

[0282] 2. The transmitting equipment or sensing function network element sets the first parameter based on the sensing accuracy requirements and the typical RCS of the sensing target in the sensing requirements, combined with the sensing resolution, and then sets the transmission power and aperture gain.

[0283] In the joint link adaptive adjustment method of transmit power and aperture gain of the monostation radar, since the transmit and receive share the same aperture, it is only necessary to configure the transmit power and transmit / receive aperture gain according to the initial first parameter.

[0284] After the first parameter is determined, the transmitting device or sensing function network element configures the transmission power and aperture gain according to the resource configuration priority information and the capability information of the transmitting device;

[0285] The resource configuration priority information is selected by the transmitting device or sensing function network element from the resource configuration priority information table based on information such as the transmitting power and antenna array configuration of the transmitting device, the current existing service occupancy, and the priority of sensing services in the sensing requirements.

[0286] The resource allocation priority information table includes two cases: power priority and aperture priority.

[0287] Power priority: Prioritize setting a larger transmit power, and then configure the aperture gain to meet the first parameter;

[0288] Aperture priority: Prioritize setting a larger aperture gain, and then configure the transmit power to meet the first parameter;

[0289] The lower limit of the transmission power configuration is the transmission power that meets the communication function requirements, and the upper limit of the transmission power configuration is the smaller value between the maximum transmission power specified in the relevant regulations and the maximum transmission power of the transmitter hardware.

[0290] The lower limit of the aperture gain configuration is the aperture gain of the antenna aperture that meets the angular resolution requirements; the upper limit of the aperture gain configuration is the maximum aperture gain of the antenna array hardware, or, based on the currently available antenna array hardware resources, in the following two cases:

[0291] If the priority information of the sensing service indicated in the sensing requirement is higher than the priority of all other services of the transmitting device, then the upper limit of the aperture gain configuration is the maximum aperture gain of the antenna array hardware.

[0292] If the priority information of the sensing service indicated in the sensing requirement is not higher than the priority of all other services of the transmitting end device, then the upper limit of the aperture gain configuration is the aperture gain of the currently available antenna array hardware resources; the currently available antenna array hardware resources are the antenna array hardware resources remaining after other services with higher priority than the sensing service priority have occupied them.

[0293] 3. The transmitting device generates and transmits the first signal according to the sensing signal configuration parameters, transmission power and aperture gain settings, and receives the target reflected echo signal of the first signal to obtain target echo data; if the sensing signal configuration parameters, transmission power and aperture gain are set by the sensing function network element, the transmitting device also needs to receive the sensing signal configuration parameters, transmission power and aperture gain settings before generating the first signal.

[0294] The first signal can be any of the following:

[0295] Dominant communication signals: such as NR signals, LTE signals, Wi-Fi signals, etc.

[0296] Sensing dominant signals: such as radar signals, including: OFDM (Orthogonal Frequency Division Multiplexing) radar signals (including phase-coded OFDM radar signals), LFM (Linear Frequency Modulation) signals, simple pulse train signals, phase-coded radar signals, etc.

[0297] Dominant signals for sensing-enhanced communication: for example, NR signals with redesigned time-frequency domain density of reference signals for sensing functions;

[0298] Integrated communication and sensing signals: These refer to signal waveforms newly designed specifically for integrated communication and sensing scenarios. They may include: signal waveforms designed for reference signal applicability based on NR signals, multi-symbol OFDM pulse signal waveforms, etc.

[0299] The waveform of the first signal can be a continuous wave or a pulse waveform.

[0300] 4. After the transmitting equipment receives the target echo data, the radar signal processing of the target echo data includes one of the following three cases:

[0301] 1) The transmitting equipment performs radar signal processing on the target echo data to obtain the measured quantity;

[0302] 2) The transmitting equipment sends the target echo data to the sensing function network element, which then processes the radar signal to obtain the measurement quantity;

[0303] 3) The transmitting equipment performs some calculations on the radar signal to obtain low-level measurement quantities, and sends the low-level measurement quantities to the sensing function network element. The sensing function network element then performs the remaining calculations on the radar signal to obtain high-level measurement quantities.

[0304] The radar signal processing includes at least one of the following options:

[0305] a) Matched filtering (pulse compression) processing, including:

[0306] ①Segment the known transmitted signal sequence to generate matched filters, and perform matched filtering on the target reflected echo signal segment by segment;

[0307] ② Perform sliding window correlation processing on the known transmitted signal and the target reflected echo signal.

[0308] b) One-dimensional FFT (Fast Fourier Transform) processing: If the sensing requirement only requires distance or velocity information of the target, then only one-dimensional FFT processing is needed; including:

[0309] ① Fast time one-dimensional FFT processing to extract target distance information;

[0310] ② Slow-time one-dimensional FFT processing to extract target velocity information;

[0311] c) Two-dimensional FFT processing: If the sensing requirement requires sensing the distance and velocity information of the target, then two-dimensional FFT processing is required, namely fast time dimension FFT and slow time dimension FFT.

[0312] d) 3D FFT processing: If the perception requirement requires sensing the distance, velocity and angle information of the target, then 3D FFT processing is required, namely fast time dimension FFT, slow time dimension FFT and angle dimension FFT.

[0313] e) Angle filtering processing improves angle sensing accuracy;

[0314] The measured quantities and their classification include one or more of the following:

[0315] a) Level 1 measurement quantities: These are the measurement quantities that the receiver of the sensing node can directly obtain after processes such as antenna coupling, amplification, down-conversion, filtering, AGC (automatic gain control), A / D (analog / digital) sampling, digital down-conversion, and digital filtering. These include: complex signals (including I-channel and Q-channel), signal amplitude, signal phase, signal power, polarization information, and threshold detection results and maximum / minimum value extraction results of the above measurement quantities.

[0316] b) Secondary measurement quantities: These are the measurement quantities that can be obtained after the primary measurement quantities have undergone simple operations (including addition, subtraction, multiplication, division, matrix addition, subtraction, multiplication, matrix transpose, trigonometric operations, square root operations, power operations, etc., as well as threshold detection results and maximum / minimum value extraction results of the above operations). These include: amplitude ratio, phase difference, angle of arrival (AOA), angle of departure (AOD), time delay (distance) information, distance difference, angle difference, etc.

[0317] c) Level 3 Measurements: These are measurements that can be obtained after Level 1 and / or Level 2 measurements have undergone complex operations (including FFT / IFFT, DFT / IDFT, 2D-FFT, 3D-FFT, matched filtering, autocorrelation, wavelet transform, digital filtering, and threshold detection and maximum / minimum value extraction results from the above operations). These include: the result of FFT (or IFFT) of a complex signal (or signal amplitude, or signal phase) or its maximum data point, power spectrum or its maximum data point, Doppler frequency shift (velocity), Doppler spread, velocity difference, time delay Doppler two-dimensional map or its maximum data point, radar one-dimensional imaging map or its maximum data point, radar two-dimensional imaging map or its maximum data point, SAR imaging map or its maximum data point, etc.

[0318] The measured quantity has at least one of the following characteristics:

[0319] a) In different perception use cases, depending on the different perception target parameters, the first-level measurement, second-level measurement, and third-level measurement may all be the final perception result, or they may not be the final perception result and require further processing to obtain the final perception result.

[0320] b) In different perception use cases, depending on the perception target parameters and perception methods, only a first-level measurement may be required (e.g., pedestrian / vehicle flow monitoring based on simplified information aggregation RSS), or only a first-level and second-level measurement may be required (e.g., radar ranging), or a first-level, second-level, and third-level measurement may be required simultaneously (e.g., radar imaging).

[0321] c) In different sensing scenarios, depending on the computing power of the sensing nodes, sensing functional network elements, core network, application servers, and other devices executing the sensing process, as well as the requirements for sensing indicators, the measurement quantities at each level can be calculated in the same device, or in different devices within the sensing nodes, sensing functional network elements, core network, and application servers; for example:

[0322] ① If the sensing node performing the sensing process has strong computing power (such as a base station), and the amount of data of the sensing measurement is large (the transmission time overhead is large), and the sensing requirements have high requirements for sensing latency, then the calculation of the secondary and / or tertiary measurement can be completed at the sensing node, and the calculation results can be sent to the sensing function network element, core network, and application server.

[0323] ② If the computing power of the sensing node executing the sensing process is weak (such as an IoT terminal), and the amount of data of the sensing measurement is large (with large transmission time overhead), and the sensing requirements are not high in terms of sensing latency but high in terms of sensing accuracy, then the calculation of the first-level measurement can be completed at the sensing node, and the calculation results can be sent to the sensing function network element, core network, and application server, and the calculation of the second-level and / or third-level measurement can be performed by the sensing function network element, core network, and application server.

[0324] ③ If the amount of data for the sensing measurement is small (and the transmission time overhead is small), then under the scheduling of the core network or application server, the calculation of any level of measurement can be completed at the sensing node, sensing function network element, core network, or application server.

[0325] 5. If the transmitting device or sensing network element detects a target during the radar signal processing, the first parameter adjustment information is obtained through a joint adaptive method of transmit power and aperture gain in tracking mode. The method may be:

[0326] 1) Adaptive adjustment of the first parameter based on the quality of the target echo signal;

[0327] The target echo signal quality can be: target echo signal power, target echo signal noise ratio (SNR), target echo signal interference noise ratio (SINR), reference signal received power (RSRP), and reference signal received quality (RSRQ);

[0328] The method for obtaining the signal power of the echo can be:

[0329] Constant false alarm rate (CFAR) detection is performed based on the one-dimensional time delay map obtained by fast time dimension FFT processing of echo signal. The maximum amplitude sample point of CFAR crossing the threshold is taken as the target sample point and its amplitude is taken as the target signal amplitude.

[0330] CFAR is performed on the Doppler one-dimensional map obtained by slow-time FFT processing of the echo signal. The sample point with the largest amplitude when the CFAR crosses the threshold is taken as the target sample point and its amplitude is taken as the target signal amplitude.

[0331] Based on the time-delay-Doppler two-dimensional map obtained by 2D-FFT processing of the echo signal, CFAR is performed, with the maximum amplitude sample point of CFAR crossing the threshold as the target sample point and its amplitude as the target signal amplitude;

[0332] CFAR is performed based on the time delay-Doppler-angle three-dimensional map obtained by 3D-FFT processing of echo signal. The maximum amplitude sample point of CFAR that crosses the threshold is taken as the target sample point and its amplitude is taken as the target signal amplitude.

[0333] In addition to using the maximum amplitude sample point of CFAR crossing the threshold as the target sample point, the target signal amplitude can also be determined by using the average of the maximum amplitude sample point of CFAR crossing the threshold and its nearest several threshold sample points as the target signal amplitude.

[0334] The method for obtaining the SNR / SINR can be:

[0335] Constant false alarm rate (CFAR) detection is performed based on the one-dimensional time delay map obtained by fast time dimension FFT processing of echo signal. The sample point with the largest amplitude of CFAR exceeding the threshold is taken as the target sample point, and its amplitude is taken as the target signal amplitude. All sample points in the one-dimensional map other than ±ε sample points away from the target sample point are taken as interference / noise sample points, and their average interference / amplitude is calculated as the interference / noise signal amplitude. Finally, SNR / SINR is calculated based on the target signal amplitude and the interference / noise signal amplitude.

[0336] CFAR is performed on the one-dimensional Doppler image obtained by slow-time FFT processing of the echo signal. The sample point with the largest amplitude that crosses the threshold in CFAR is taken as the target sample point, and its amplitude is taken as the target signal amplitude. All sample points in the one-dimensional image other than ±η sample points away from the target sample point are taken as interference / noise sample points, and their average amplitude is calculated as the interference / noise signal amplitude. Finally, SNR / SINR is calculated based on the target signal amplitude and the interference / noise signal amplitude.

[0337] Based on the time-delay-Doppler two-dimensional map obtained by 2D-FFT processing of the echo signal, CFAR is performed. The sample point with the largest amplitude that crosses the threshold in CFAR is taken as the target sample point, and its amplitude is taken as the target signal amplitude. All sample points in the two-dimensional map other than ±ε (fast time dimension) and ±η (slow time dimension) sample points away from the target sample point are taken as interference / noise sample points, and their average amplitude is calculated as the interference / noise signal amplitude. Finally, SNR / SINR is calculated based on the target signal amplitude and the interference / noise signal amplitude.

[0338] CFAR is performed based on the time-delay-Doppler-angle 3D map obtained from the 3D-FFT processing of the echo signal. The sample point with the largest amplitude that crosses the threshold in CFAR is taken as the target sample point, and its amplitude is taken as the target signal amplitude. All sample points in the 3D map that are outside the target sample point by ±ε (fast time dimension), ±η (slow time dimension), and ±δ (angle dimension) are taken as interference / noise sample points, and their average amplitude is calculated as the interference / noise signal amplitude. Finally, SNR / SINR is calculated based on the target signal amplitude and the interference / noise signal amplitude.

[0339] In addition to using the maximum amplitude sample point of CFAR crossing the threshold as the target sample point, the method for determining the target signal amplitude can also be the average of the maximum amplitude sample point of CFAR crossing the threshold and its nearest several threshold-crossing sample points.

[0340] The method for determining interference / noise sample points can also be to further filter the interference / noise sample points determined above. The filtering method is as follows: For a one-dimensional time delay map, remove several sample points near the time delay of 0, and use the remaining interference / noise sample points as noise sample points; For a one-dimensional Doppler map, remove several sample points near the Doppler value of 0, and use the remaining interference / noise sample points as interference / noise sample points; For a two-dimensional time delay-Doppler map, remove the interference / noise sample points in the strip-shaped range formed by several points near the time delay of 0 and the entire Doppler range, and use the remaining noise sample points as interference / noise sample points; For a three-dimensional time delay-Doppler-angle map, remove the interference / noise sample points in the slice-shaped range formed by several points near the time dimension of 0, the entire Doppler range, and the entire angle range, and use the remaining interference / noise sample points as interference / noise sample points.

[0341] 2) Adaptively adjust the first parameter based on the target's real-time parameters;

[0342] The real-time parameters of the target include: the real-time distance of the target and the real-time RCS of the target;

[0343] The real-time RCS of the target is calculated based on the real-time echo power of the target signal and the real-time distance of the target.

[0344] The calculation process for the target RCS can be completed by the transmitting equipment; alternatively, the transmitting equipment can report the sensed measurement to the sensing function network element, which will then execute the calculation process.

[0345] Optionally, if the radar tracks multiple targets simultaneously, the transmitting device or sensing function network element performs the aforementioned adaptive process of the first parameter for each target and obtains the first parameter adjustment information corresponding to each target; or, the transmitting device or sensing function network element integrates the parameters of each target to obtain a comprehensive first parameter adjustment information applicable to multiple targets.

[0346] 6. The transmitting equipment or sensing network element adjusts the transmit power and aperture gain for the next moment based on the first parameter adjustment information, using one of the following methods:

[0347] Power priority: As mentioned in step 2, if the larger transmit power resource is used first, the aperture gain resource will be adjusted first when the first parameter increases or decreases until the configurable upper and lower limits are reached.

[0348] Aperture priority: As mentioned in step 2, if a larger aperture gain resource is preferred, the transmit power resource will be adjusted first when the first parameter increases or decreases until the configurable upper and lower limits are reached.

[0349] The lower limit of the configurable transmission power is the transmission power that meets the communication function requirements, and the upper limit of the configurable transmission power is the smaller value between the maximum transmission power specified in the relevant regulations and the maximum transmission power of the transmitter hardware.

[0350] The lower limit of the configurable antenna aperture is the aperture gain of the antenna aperture that meets the angular resolution requirements, and the upper limit of the configurable aperture gain is the maximum aperture gain of the antenna array hardware.

[0351] 7. In tracking mode, the transmitting device generates a first signal based on the transmission power and aperture gain at the next moment and executes the sensing process at the next moment, repeating steps 3 to 7 until the sensing process ends;

[0352] The method for ending the sensing process includes:

[0353] a) End of sensing time: The sensing process ends when the sensing time reaches the required sensing duration in the sensing needs.

[0354] b) Perception index meets the requirements: The perception process ends when the specific perception index in the perception requirements is met; for example, in a radar imaging scenario, the radar imaging operation of the imaging range in the perception requirements is completed according to the imaging resolution requirements in the perception requirements.

[0355] c) Beam failure: The sensing process ends because the target is blocked or the target is moving within the sensing range required by the sensing requirements, the power of the sensing echo signal or the SNR of the sensing echo signal cannot meet the relevant requirements of the sensing requirements.

[0356] d) Target loss: Due to the target's motion characteristics (such as frequent acceleration and deceleration, or frequent turning), the radar is unable to establish stable tracking of the target, the radar loses tracking of the target, and the sensing process ends.

[0357] Example 2: Joint Adaptive Transmit Power and Aperture Gain of Bistatic Radar

[0358] 1. At the initial moment of sensing, based on the sensing target parameters, sensing index requirements, and prior sensing information in the sensing requirements, combined with the capability information of the transmitting and receiving devices, the sensing signal configuration parameters are set; including the following options:

[0359] 1) The sensing function network element sets the sensing signal configuration parameters based on the sensing target parameters, sensing index requirements and sensing prior information in the sensing requirements, combined with the acquired capability information of the transmitting and receiving devices, and sends them to the transmitting and receiving devices.

[0360] 2) The transmitting and receiving equipment set the relevant parts of the sensing signal configuration parameters according to the sensing target parameters, sensing index requirements and sensing prior information in the sensing requirements, combined with their respective capability information.

[0361] 3) One of the transmitting and receiving devices sets the sensing signal configuration parameters based on the sensing target parameters, sensing index requirements, and sensing prior information in the sensing requirements, combined with its own capability information and the acquired capability information of the other device, and sends them to the other device.

[0362] Before the transmitting or receiving device sets up a configuration that includes sensing signals related to the other device, the transmitting or receiving device needs to exchange information with the other device to obtain the other device's capability configuration information.

[0363] The sensing function network element acquires capability information of the transmitting and receiving devices in the following two ways:

[0364] 1) The sensing function network element, or other network nodes accessible to the sensing function network element, has pre-stored the capability information of the transmitting and receiving devices;

[0365] 2) The sensing function network element interacts with the transmitting and receiving devices, and the transmitting and receiving devices report their own capability information to the sensing function network element.

[0366] The capability information of the transmitting and receiving devices includes: the hardware configuration and software configuration of the transmitting and receiving devices, the current hardware and software resource usage, and the service types and service priorities currently occupying the hardware and software resources of the transmitting and receiving devices.

[0367] The parameters of the sensing target are the same as in Example 1;

[0368] The perception indicators are the same as in Example 1;

[0369] The prior information of perception is the same as in Example 1;

[0370] The configuration parameters for the sensing signal are the same as in Example 1:

[0371] The process of setting the sensing signal configuration parameters according to the sensing index requirements is the same as in Example 1.

[0372] 2. The sensing function network element, or transmitting equipment, or receiving equipment, sets the first parameter based on the sensing accuracy requirements and the typical RCS of the sensing target, combined with the sensing resolution, and then sets the transmission power and aperture gain.

[0373] For situations where there is a direct communication connection between the transmitting and receiving devices, the path loss per unit length of the sensing channel can be estimated from the communication signal between the transmitting and receiving devices. The first parameter can then be set using this path loss, sensing accuracy requirements, typical target RCS, and operating distance.

[0374] After determining the first parameter, the sensing function network element, or the transmitting end device, or the receiving end device, configures the transmission power and aperture gain resources according to the resource configuration priority information and the capability information of the transmitting end device and the receiving end device.

[0375] The main body for determining the first parameter, configuring the transmit power and aperture gain in this step is the same as the main body for setting the sensing signal configuration parameters in step 1, that is:

[0376] 1) If the sensing signal configuration parameters are set by the sensing function network element in step 1, then in this step the sensing function network element will still determine the first parameter, configure the transmit power and aperture gain, and send them to the transmitting end device and the receiving end device.

[0377] 2) If the sensing signal configuration parameters are set by the transmitting device in step 1, then in this step the transmitting device still determines the first parameter, configures the transmission power and aperture gain, and sends them to the receiving device;

[0378] 3) If the receiving device sets the sensing signal configuration parameters in step 1, then in this step the receiving device still determines the first parameter, configures the transmit power and aperture gain, and sends them to the transmitting device;

[0379] 4) If the sensing signal configuration is jointly set by the transmitting and receiving devices in step 1, then in this step either the transmitting or receiving device can determine the first parameter, configure the transmission power and aperture gain, and send them to the other device.

[0380] The resource configuration priority information is selected by the entity executing the configuration of transmit power and aperture gain from the resource configuration priority information table based on the capability information of the transmitting and receiving devices and the priority information of sensing services in the sensing requirements.

[0381] Resource allocation priority is divided into two cases: power priority and aperture priority.

[0382] Power priority: Prioritize setting a larger transmit power, and then configure aperture gain resources to meet the initial first parameter;

[0383] Aperture priority: Prioritize setting a larger aperture gain, and then configure the transmit power resources to meet the initial first parameter;

[0384] In a bistatic radar scenario, aperture gain is divided into transmitter aperture gain and receiver aperture gain. Therefore, the resource configuration priority information table contains the following 6 items, sorted from highest to lowest configuration priority:

[0385] ① Transmit power, transmitter aperture gain, receiver aperture gain;

[0386] ② Transmit power, receiver aperture gain, transmitter aperture gain;

[0387] ③ Transmitter aperture gain, transmit power, receiver aperture gain;

[0388] ④ Transmitter aperture gain, receiver aperture gain, and transmit power;

[0389] ⑤ Receiver aperture gain, transmit power, and transmitter aperture gain;

[0390] ⑥ Receiver aperture gain, transmitter aperture gain, and transmit power;

[0391] The lower limit of the transmission power configuration is the transmission power that meets the communication function requirements, and the upper limit of the transmission power configuration is the smaller value between the maximum transmission power specified in the relevant regulations and the maximum transmission power of the transmitter hardware.

[0392] The lower limit of the receiving antenna aperture configuration is the aperture gain of the antenna aperture that meets the angular resolution requirements; the upper limit of the transmitting aperture gain configuration and the upper limit of the receiving aperture gain configuration are the maximum aperture gain of the antenna array hardware, or, currently available antenna array hardware resources, which can be divided into the following two cases:

[0393] If the priority information of the sensing service indicated in the sensing requirement is higher than the priority of all other services, then the upper limit of the aperture gain configuration is the maximum aperture gain of the antenna array hardware.

[0394] If the priority information of the sensing service indicated in the sensing requirement is not higher than the priority of all other services, then the upper limit of the aperture gain configuration is the aperture gain of the currently available antenna array hardware resources; the currently available antenna array hardware resources are the antenna array hardware resources remaining after other services with a priority higher than the sensing service priority have occupied them.

[0395] 3. The transmitting device generates and transmits the first signal based on the information related to the transmitting device, the transmission power, and the transmitting aperture gain settings in the sensing signal configuration parameters;

[0396] The receiving device configures the receiving beam according to the information related to the receiving device in the sensing signal configuration parameters and the receiving aperture gain, and receives the target reflected echo signal of the first signal to obtain the target echo data.

[0397] The first signal is the same as in Example 1.

[0398] 4. After the receiving equipment obtains the target echo data, the radar signal processing includes one of the following three cases:

[0399] 1) The receiving equipment performs radar signal processing on the target echo data to obtain the measured quantity;

[0400] 2) The receiving equipment sends the target echo data to the sensing function network element, which then processes the radar signal to obtain the measurement quantity.

[0401] 3) The receiving device performs some calculations on the radar signal to obtain low-level measurement quantities, and sends the low-level measurement quantities to the sensing function network element. The sensing function network element then performs the remaining calculations on the radar signal to obtain high-level measurement quantities.

[0402] The method by which the receiving device sends the target echo data or low-level measurement to the sensing function network element is the same as the method in step 1.

[0403] The radar signal processing is the same as in Example 1;

[0404] The measurement quantities and their classification are the same as in Example 1;

[0405] The measurement classification is the same as in Example 1.

[0406] 5. If the receiving device or sensing network element detects a target during radar signal processing, the adaptive method in tracking mode obtains first parameter adjustment information, including one of the following options:

[0407] 1) The receiving device detects the target and executes the link adaptive method to obtain the first parameter adjustment information;

[0408] 2) The receiving device detects the target and sends the target parameters (distance, speed, angle, target echo signal quality, etc.) to the transmitting device. The transmitting device executes the link adaptive method to obtain the first parameter adjustment information.

[0409] 3) The receiving device detects the target and sends the target parameters (distance, speed, angle, target echo signal quality, etc.) to the sensing function network element. The sensing function network element executes the link adaptive method to obtain the first parameter adjustment information.

[0410] 4) The sensing function network element detects the target and executes the link adaptive method to obtain the first parameter adjustment information.

[0411] The method by which the receiving device sends the target parameters to the sensing function network element is the same as the method in step 1.

[0412] The first parameter adjustment information includes one of the following options:

[0413] 1) The first parameter value at the next moment;

[0414] 2) The ratio of the first parameter value at the next time step to the first parameter value at the current time step;

[0415] 3) The difference between the first parameter value at the next time step and the first parameter value at the current time step.

[0416] One of the following options is a specific method for obtaining the first parameter adjustment information through link adaptation:

[0417] 1) Adaptive link adjustment of the first parameter based on the quality of the target echo signal;

[0418] The target echo signal quality can be: target echo signal power, target echo signal noise ratio (SNR), target echo signal interference noise ratio (SINR), reference signal received power (RSRP), and reference signal received quality (RSRQ);

[0419] The method for obtaining the echo signal power is the same as in Example 1;

[0420] The method for obtaining the SNR is the same as in Example 1.

[0421] 2) Perform joint link adaptive adjustment of transmit power and aperture gain based on real-time target parameters;

[0422] The target's real-time parameters include: target real-time distance and target real-time RCS;

[0423] The target's real-time RCS is calculated based on the target signal's real-time echo power and the target's real-time distance.

[0424] Optionally, if the radar tracks multiple targets simultaneously, the receiving device, the transmitting device, or the sensing function network element performs the link adaptation process of the first parameter described above for each target and obtains the first parameter adjustment information corresponding to each target; or, the receiving device, the transmitting device, or the sensing function network element integrates the parameters of each target to obtain a comprehensive first parameter adjustment information applicable to multiple targets.

[0425] 6. The receiving device, or transmitting device, or sensing network element, according to the first parameter adjustment information, and based on the resource configuration priority information, the capability information of the transmitting device and the receiving device, adjusts the transmit power and aperture gain from low to high according to the priority of transmit power, transmit aperture gain, and receive aperture gain in the resource configuration priority information, similar to the method described in step 2, including one of the following options:

[0426] 1) After receiving the first parameter adjustment information, the receiving device configures the transmit power and aperture gain and then sends it to the transmitting device:

[0427] 2) The receiving device receives the first parameter adjustment information and sends the first parameter adjustment information to the transmitting device. The transmitting device configures the transmission power and aperture gain and then sends it to the receiving device.

[0428] 3) The receiving device receives the first parameter adjustment information and sends the first parameter adjustment information to the sensing function network element. The sensing function network element configures the transmit power and aperture gain and then sends it to the transmitting device and the receiving device.

[0429] 4) The transmitting device receives the first parameter adjustment information, configures the transmission power and aperture gain, and then sends it to the receiving device;

[0430] 5) The transmitting device receives the first parameter adjustment information and sends the first parameter adjustment information to the sensing function network element. The sensing function network element configures the transmission power and aperture gain and then sends it to the transmitting device and the receiving device.

[0431] 6) The sensing function network element obtains the first parameter adjustment information, configures the transmit power and aperture gain, and then sends it to the transmitting end equipment and the receiving end equipment.

[0432] The method for transmitting information by the transmitting and receiving devices is the same as that in step 3.

[0433] 7. The transmitting device adjusts the transmission of the first signal according to the transmission power and aperture gain at the next moment, and the receiving device adjusts the reception of the echo signal of the first signal according to the aperture gain at the next moment. The transmitting device and the receiving device execute the sensing process at the next moment, and repeat steps 3 to 7 until the sensing process ends.

[0434] The method for ending the perception process is the same as in Example 1.

[0435] The wireless sensing parameter determination method provided in this application can be executed by a wireless sensing parameter determination device. This application uses an example of a wireless sensing parameter determination device executing the wireless sensing parameter determination method to illustrate the wireless sensing parameter determination device provided in this application.

[0436] Please see Figure 8 , Figure 8 This is a schematic diagram of the structure of the wireless sensing parameter determination device 800 provided in an embodiment of this application. The device applied to the first device includes:

[0437] The first determining module 801 is used to determine first parameter adjustment information based on the echo signal quality of the first target or the parameters of the first target; the first parameter adjustment information is used to indicate the signal transmission and echo signal reception at the second time.

[0438] Wherein, the first device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target; or, the first device receives the echo signal quality of the first target or the parameters of the first target from the second device, and the second device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target.

[0439] Wherein, the second time point is after the first time point; the value of the first parameter is determined by the first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain; the parameters of the first target include at least one of the radar cross-section (RCS) of the first target and the range information of the first target.

[0440] As an optional embodiment, when the first device is a transmitting device, the apparatus further includes:

[0441] The first transmitting module is used to send the first parameter adjustment information to the receiving device or the sensing function network element;

[0442] Alternatively, if the first device is a receiving device, the apparatus further includes:

[0443] The second transmitting module is used to send the first parameter adjustment information to the transmitting end device or the sensing function network element;

[0444] Alternatively, if the first device is a sensing network element, the device further includes:

[0445] The third sending module is used to send the first parameter adjustment information to the transmitting end device or the receiving end device.

[0446] As an optional embodiment, the first parameter adjustment information includes any one of the following:

[0447] The first value of the first parameter;

[0448] The ratio of the first value of the first parameter to the second value of the first parameter;

[0449] The difference between the first value of the first parameter and the second value of the first parameter;

[0450] The second value of the first parameter is determined by the transmit power and transmit aperture gain corresponding to the signal transmission at the first moment, and the receive aperture gain corresponding to the echo signal reception.

[0451] As an optional embodiment, the apparatus further includes:

[0452] The second determining module is used to determine the first value of the first parameter based on the first parameter adjustment information;

[0453] The first configuration module is used to configure the transmission power, transmission aperture gain and receiving aperture gain of the first signal according to the first value of the first parameter, the capability information of the transmitting device and the capability information of the receiving device.

[0454] The capability information includes a set of information on the current available transmit power configuration and antenna array configuration of the corresponding device.

[0455] As an optional embodiment, when the first device is a transmitting device, the apparatus further includes:

[0456] The fourth transmitting module is used to send the configured receiver aperture gain to the receiving device;

[0457] Alternatively, if the first device is a receiving device, the apparatus further includes:

[0458] The fifth transmitting module is used to transmit the transmission power and transmitting aperture gain of the configured first signal to the transmitting device;

[0459] Alternatively, if the first device is a sensing network element, the device further includes:

[0460] The sixth transmitting module is used to send the transmission power and transmitting aperture gain of the configured first signal to the transmitting end device, and to send the receiving aperture gain to the receiving end device.

[0461] As an optional embodiment, when the first device is a transmitting device, the apparatus further includes:

[0462] The seventh transmitting module is used to transmit the first signal according to the configured transmission power and transmitter aperture gain of the first signal.

[0463] As an optional embodiment, when the first device is a receiving device, the apparatus further includes:

[0464] The first receiving module is used to receive the echo signal of the first signal according to the configured receiver aperture gain.

[0465] As an optional embodiment, the first configuration module includes:

[0466] The first configuration submodule is used to configure the transmission power, transmission aperture gain and receiving aperture gain of the first signal according to the first value of the first parameter, the capability information of the transmitting device and the capability information of the receiving device, in a power-priority mode or an aperture-priority mode.

[0467] The power priority method includes: prioritizing the configuration of the transmission power to meet the requirements of the first parameter; if the transmission power reaches the upper limit of the configured power range but still cannot meet the requirements of the first parameter, then the requirements of the first parameter are met by configuring the aperture gain of the transmitting end and / or the aperture gain of the receiving end.

[0468] The aperture priority method includes: prioritizing the configuration of the transmitter aperture gain and / or receiver aperture gain to meet the requirements of the first parameter; if the transmitter aperture gain and / or receiver aperture gain reach the upper limit of the aperture gain but still cannot meet the requirements of the first parameter, then the transmission power is configured to meet the requirements of the first parameter.

[0469] As an optional embodiment, the method of configuring the transmitter aperture gain and / or receiver aperture gain includes: prioritizing the transmitter aperture gain or prioritizing the receiver aperture gain;

[0470] The preferred method for transmitting aperture gain includes: prioritizing the configuration of transmitting aperture gain; if the configuration of transmitting aperture gain reaches the upper limit of transmitting aperture gain but still cannot meet the requirements of the first parameter, then the receiving aperture gain is configured to meet the requirements of the first parameter.

[0471] The priority of receiver aperture gain includes: prioritizing the configuration of receiver aperture gain; if the configuration of receiver aperture gain reaches the upper limit of receiver aperture gain but still cannot meet the requirements of the first parameter, then the requirement of the first parameter is met by configuring transmitter aperture gain.

[0472] As an optional embodiment, the echo signal quality of the first target includes at least one of the following:

[0473] The echo signal power of the first target;

[0474] The echo signal-to-noise ratio of the first target;

[0475] The interference-to-noise ratio of the echo signal of the first target;

[0476] The reference signal received power of the echo signal of the first target;

[0477] The quality of the reference signal received from the echo signal of the first target.

[0478] As an optional embodiment, the first determining module includes:

[0479] The first determining submodule is used to determine the first parameter adjustment information based on the quality of the echo signal of the first target at the first moment;

[0480] or,

[0481] The second determining submodule is used to determine the first parameter adjustment information based on the predicted distance value of the first target at the second time moment and the echo signal quality of the first target at the first time moment.

[0482] As an optional embodiment, the first determining submodule includes:

[0483] The first determining unit is configured to determine first parameter adjustment information based on a second value of the first parameter, the first moment echo signal quality of the first target, and the first preset echo quality when it is determined that the echo signal quality of the first target should be maintained near the first preset echo quality.

[0484] or,

[0485] The second determining unit is used to determine the first parameter adjustment information based on the second value of the first parameter, the first moment echo signal quality of the first target, and the first echo quality range, when it is determined that the echo signal quality of the first target will be maintained within the first echo quality range.

[0486] As an optional embodiment, the first determining unit includes:

[0487] The first determining subunit is used to determine the first value of the first parameter according to the first formula; the first formula is:

[0488]

[0489] Where C′ is the first value of the first parameter; C is the second value of the first parameter; P r0 P is the first preset echo quality; rThe quality of the echo signal at the first moment for the primary target.

[0490] As an optional embodiment, the second determining unit includes:

[0491] The second determining subunit is used to determine the first value of the first parameter according to the second formula; the second formula is:

[0492]

[0493] Where C′ is the first value of the first parameter; C is the second value of the first parameter; P r The quality of the echo signal at the first moment for the primary target;

[0494] If the echo signal quality of the first target at a first moment is greater than the upper limit echo quality of the first echo quality range, then P is the upper limit echo quality of the first echo quality range; or,

[0495] If the echo signal quality of the first target at a first moment is less than the lower limit echo quality of the first echo quality range, then P is the lower limit echo quality of the first echo quality range; or...

[0496] P is the arithmetic or geometric mean of the upper and lower echo quality limits of the first echo quality range.

[0497] As an optional embodiment, the second determining submodule includes:

[0498] The third determining unit is used to determine the first parameter adjustment information based on the second value of the first parameter, the first moment echo signal quality of the first target, the first preset echo quality, and the distance prediction value of the first target at the second moment, when it is determined that the echo signal quality of the first target should be maintained near the first preset echo quality.

[0499] or,

[0500] The fourth determining unit is used to determine the first parameter adjustment information based on the second value of the first parameter, the first moment echo signal quality of the first target, the first echo quality range, and the distance prediction value of the first target at the second moment, when it is determined that the echo signal quality of the first target will be maintained within the first echo quality range.

[0501] As an optional embodiment, the third determining unit includes:

[0502] The third determining subunit is used to determine the first value of the first parameter according to the third formula; the third formula includes:

[0503] or,

[0504] Where C′ is the first value of the first parameter; C is the second value of the first parameter; P r0 P is the first preset echo quality; r R represents the echo signal quality of the first target at the first moment; R' represents the distance between the first target and the signal transceiver at the first moment in a monostatic radar scenario; R' represents the predicted distance between the first target and the signal transceiver at the second moment in a monostatic radar scenario; R t R represents the distance between the first target and the transmitting device at the first moment in a bistatic radar scenario. t ′ represents the predicted distance between the first target and the transmitting equipment at the second time point in a bistatic radar scenario; R r R represents the distance between the first target and the receiving device at the first moment in a bistatic radar scenario. r ′ represents the predicted distance between the first target and the receiving device at the second time point in a bistatic radar scenario.

[0505] As an optional embodiment, the fourth determining unit includes:

[0506] The fourth determining subunit is used to determine the first value of the first parameter according to the fourth formula; the fourth formula includes:

[0507] or,

[0508] Where C′ is the first value of the first parameter; C is the second value of the first parameter; P r R represents the echo signal quality of the first target at the first moment; R' represents the distance between the first target and the signal transceiver at the first moment in a monostatic radar scenario; R' represents the predicted distance between the first target and the signal transceiver at the second moment in a monostatic radar scenario; R t R represents the distance between the first target and the transmitting device at the first moment in a bistatic radar scenario. t ′ represents the predicted distance between the first target and the transmitting equipment at the second time point in a bistatic radar scenario; R r R represents the distance between the first target and the receiving device at the first moment in a bistatic radar scenario. r ′ represents the predicted distance between the first target and the receiving device at the second time point in a bistatic radar scenario;

[0509] If the echo signal quality of the first target at a first moment is greater than the upper limit echo quality of the first echo quality range, then P is the upper limit echo quality of the first echo quality range; or,

[0510] If the echo signal quality of the first target at a first moment is less than the lower limit echo quality of the first echo quality range, then P is the lower limit echo quality of the first echo quality range; or...

[0511] P is the arithmetic or geometric mean of the upper and lower echo quality limits of the first echo quality range.

[0512] As an optional embodiment, the apparatus further includes:

[0513] The third determining module is used to determine the RCS of the first target based on the echo signal power of the first target and the first distance of the first target relative to the transceiver device.

[0514] Alternatively, it can be used to determine the RCS of the first target based on the echo signal power of the first target, the second distance of the first target relative to the transmitting device, and the third distance of the first target relative to the receiving device.

[0515] As an optional embodiment, the apparatus further includes:

[0516] The fourth determining module is configured to determine the first preset echo quality or the first echo quality range based on a first condition; the first condition includes at least one of the following:

[0517] The quality of the echo signal required by the sensing indicators in the sensing needs;

[0518] The quality of the echo signal corresponding to the required transmit signal power for the communication function in a synergistic application;

[0519] In applications of integrated induction and communication, the interference level of the communication function limits the required echo signal quality.

[0520] In this embodiment of the application, the first device adaptively adjusts the product of the transmission power of the first signal, the transmitting aperture gain, and the receiving aperture gain according to the echo signal quality of the first target or the parameters of the first target, so as to optimize the allocation of the system's transmission power and aperture gain resources while meeting the sensing requirements, thereby optimizing the performance and power resource utilization of the integrated communication and sensing system.

[0521] It should be noted that the wireless sensing parameter determination device provided in this application embodiment is a device capable of executing the above-described wireless sensing parameter determination method. Therefore, all embodiments of the above-described wireless sensing parameter determination method are applicable to this device and can achieve the same or similar beneficial effects.

[0522] Please see Figure 9 , Figure 9This is a schematic diagram of the structure of the wireless sensing parameter determination device 900 provided in an embodiment of this application. The device applied to a third device includes:

[0523] The fifth determining module 901 is used to determine the initial value of the first parameter based on the radar cross-section (RCS) of the target being sensed and the maximum effective range of radar detection, which are included in the sensing requirements.

[0524] The value of the first parameter is determined by the first product, which is the product of the transmission power of the first signal, the aperture gain of the transmitting end, and the aperture gain of the receiving end.

[0525] As an optional embodiment, the apparatus further includes:

[0526] The second configuration module is used to configure the transmission power, transmission aperture gain and receiving aperture gain of the first signal based on the initial value of the first parameter, the capability information of the transmitting device and the capability information of the receiving device.

[0527] The capability information includes a set of information on the current available transmit power configuration and antenna array configuration of the corresponding device.

[0528] As an optional embodiment, the second configuration module includes:

[0529] The second configuration submodule is used to configure the transmission power, transmission aperture gain and receiving aperture gain of the first signal according to the initial value of the first parameter, the capability information of the transmitting device and the capability information of the receiving device, in either a power-priority mode or an aperture-priority mode.

[0530] The power priority method includes: prioritizing the configuration of the transmission power to meet the requirements of the first parameter; if the transmission power reaches the upper limit of the configured power range but still cannot meet the requirements of the first parameter, then the requirements of the first parameter are met by configuring the aperture gain of the transmitting end and / or the aperture gain of the receiving end.

[0531] The aperture priority method includes: prioritizing the configuration of the transmitter aperture gain and / or receiver aperture gain to meet the requirements of the first parameter; if the transmitter aperture gain and / or receiver aperture gain reach the upper limit of the aperture gain but still cannot meet the requirements of the first parameter, then the transmission power is configured to meet the requirements of the first parameter.

[0532] As an optional embodiment, the method of configuring the transmitter aperture gain and / or receiver aperture gain includes: prioritizing the transmitter aperture gain or prioritizing the receiver aperture gain;

[0533] The preferred method for transmitting aperture gain includes: prioritizing the configuration of transmitting aperture gain; if the configuration of transmitting aperture gain reaches the upper limit of transmitting aperture gain but still cannot meet the requirements of the first parameter, then the receiving aperture gain is configured to meet the requirements of the first parameter.

[0534] The priority of receiver aperture gain includes: prioritizing the configuration of receiver aperture gain; if the configuration of receiver aperture gain reaches the upper limit of receiver aperture gain but still cannot meet the requirements of the first parameter, then the requirement of the first parameter is met by configuring transmitter aperture gain.

[0535] As an optional embodiment, when the third device is a transmitting device, the apparatus further includes:

[0536] The eighth transmitting module is used to send the configured receiver aperture gain to the receiving device;

[0537] Alternatively, if the third device is a receiving device, the apparatus further includes:

[0538] The ninth transmitting module is used to transmit the transmission power and transmitting aperture gain of the configured first signal to the transmitting device;

[0539] Alternatively, if the third device is a sensing network element, the device further includes:

[0540] The tenth transmitting module is used to send the transmission power and transmitting aperture gain of the configured first signal to the transmitting end device, and to send the configured receiving aperture gain to the receiving end device.

[0541] As an optional embodiment, when the first device is a transmitting device, the apparatus further includes:

[0542] The eleventh transmitting module is used to transmit the first signal according to the configured transmission power of the first signal and the aperture gain of the transmitting end.

[0543] As an optional embodiment, when the third device is a receiving device, the apparatus further includes:

[0544] The second receiving module is used to receive the echo signal of the first signal according to the configured receiver aperture gain.

[0545] In the embodiments of this application, the third device adaptively adjusts the product of the transmission power of the first signal, the transmitter aperture gain, and the receiver aperture gain according to the sensing requirements in the search mode, so as to optimize the allocation of the system's transmission power and aperture gain resources while meeting the sensing requirements, thereby optimizing the performance and power resource utilization of the integrated communication and sensing system.

[0546] It should be noted that the wireless sensing parameter determination device provided in this application embodiment is a device capable of executing the above-described wireless sensing parameter determination method. Therefore, all embodiments of the above-described wireless sensing parameter determination method are applicable to this device and can achieve the same or similar beneficial effects.

[0547] The wireless sensing parameter determination device in this application embodiment 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 besides a terminal. For example, the terminal can include, but is not limited to, the type of terminal 11 listed above; other devices can be servers, network attached storage (NAS), etc., and this application embodiment does not specifically limit the type.

[0548] The wireless sensing parameter determination device provided in this application embodiment can achieve... Figures 1 to 7 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0549] Optional, such as Figure 10 As shown, this application embodiment also provides a communication device 1000, including a processor 1001 and a memory 1002. The memory 1002 stores a program or instructions that can run on the processor 1001. For example, when the communication device 1000 is a first device, when the program or instructions are executed by the processor 1001, they implement the various steps of the above-described wireless sensing parameter determination method embodiment and achieve the same technical effect. When the communication device 1000 is a third device, when the program or instructions are executed by the processor 1001, they implement the various steps of the above-described wireless sensing parameter determination method embodiment and achieve the same technical effect. To avoid repetition, this will not be described again here.

[0550] This application embodiment also provides a communication device, including a processor and a communication interface. The processor is configured to determine first parameter adjustment information based on the echo signal quality of the first target or the parameters of the first target. The first parameter adjustment information is used to indicate signal transmission and echo signal reception at a second time point, wherein the second time point is after the first time point. The value of the first parameter is determined by a first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain. The parameters of the first target include at least one of the radar cross-section (RCS) of the first target and the distance information of the first target. Alternatively, the processor is configured to determine an initial value of the first parameter based on the RCS of the target being sensed and the maximum effective range of radar detection included in the sensing requirements. The value of the first parameter is determined by a first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain. This communication device embodiment corresponds to the above-described first device method embodiment or third device method embodiment. All implementation processes and methods of the above method embodiments can be applied to this communication device embodiment and can achieve the same technical effects.

[0551] Specifically, embodiments of this application also provide a communication device. For example... Figure 11 As shown, the network-side device 1100 includes: an antenna 111, a radio frequency (RF) device 112, a baseband device 113, a processor 114, and a memory 115. The antenna 111 is connected to the RF device 112. In the uplink direction, the RF device 112 receives information through the antenna 111 and transmits the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes the information to be transmitted and sends it to the RF device 112. The RF device 112 processes the received information and transmits it through the antenna 111.

[0552] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 113, which includes a baseband processor.

[0553] Baseband device 113 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 11 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 115 via a bus interface to call the program in the memory 115 and execute the network device operation shown in the above method embodiment.

[0554] The network-side device may also include a network interface 116, such as a common public radio interface (CPRI).

[0555] Specifically, the network-side device 1100 of this embodiment further includes: instructions or programs stored in memory 115 and executable on processor 114, wherein processor 114 calls the instructions or programs in memory 115 to execute. Figure 8 or Figure 9 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0556] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described wireless sensing parameter determination method embodiment and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0557] 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 disk, or optical disk.

[0558] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described wireless sensing parameter determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0559] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0560] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described wireless sensing parameter determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0561] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0562] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0563] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for determining parameters in wireless sensing, characterized in that, include: The first device determines the first parameter adjustment information based on the quality of the echo signal from the first target or the parameters of the first target; the first parameter adjustment information is used to indicate the signal transmission and echo signal reception at the second moment. Wherein, the first device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target; or, the first device receives the echo signal quality of the first target or the parameters of the first target from the second device, and the second device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target. Wherein, the second time point is after the first time point; the value of the first parameter is determined by the first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain; the parameters of the first target include at least one of the radar cross-section (RCS) of the first target and the range information of the first target. The first device determines the first parameter adjustment information based on the echo signal quality of the first target, including: The first device determines the first parameter adjustment information based on the quality of the echo signal from the first target at the first moment; or, The first device determines the first parameter adjustment information based on the predicted distance value of the first target at the second time moment and the echo signal quality of the first target at the first time moment; The first device determines the first parameter adjustment information based on the quality of the echo signal from the first target at a first moment, including: If it is determined that the echo signal quality of the first target will be maintained near the first preset echo quality, the first parameter adjustment information is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, and the first preset echo quality. Alternatively, if it is determined that the echo signal quality of the first target will be maintained within the first echo quality range, the first parameter adjustment information is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, and the first echo quality range; wherein, the second value of the first parameter is determined by the transmit power and transmit aperture gain corresponding to the signal transmission at the first moment and the receive aperture gain corresponding to the echo signal reception. The first device determines the first parameter adjustment information based on the predicted distance to the first target at the second time moment and the echo signal quality of the first target at the first time moment, including: If it is determined that the echo signal quality of the first target should be maintained near the first preset echo quality, the first parameter adjustment information is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, the first preset echo quality, and the distance prediction value of the first target at the second moment. Alternatively, if it is determined that the echo signal quality of the first target will be maintained within the first echo quality range, the first parameter adjustment information is determined based on the second value of the first parameter, the echo signal quality of the first target at the first moment, the first echo quality range, and the distance prediction value of the first target at the second moment.

2. The method according to claim 1, characterized in that, When the first device is a transmitting device, the method further includes: The transmitting device sends the first parameter adjustment information to the receiving device or sensing function network element; Alternatively, if the first device is a receiving device, the method further includes: The receiving device sends the first parameter adjustment information to the transmitting device or sensing function network element; Alternatively, if the first device is a sensing network element, the method further includes: The sensing function network element sends the first parameter adjustment information to the transmitting or receiving device.

3. The method according to claim 1 or 2, characterized in that, The first parameter adjustment information includes any one of the following: The first value of the first parameter; The ratio of the first value of the first parameter to the second value of the first parameter; The difference between the first value of the first parameter and the second value of the first parameter; The second value of the first parameter is determined by the transmit power and transmit aperture gain corresponding to the signal transmission at the first moment, and the receive aperture gain corresponding to the echo signal reception.

4. The method according to claim 3, characterized in that, The method further includes: The first device determines the first value of the first parameter based on the first parameter adjustment information; The first device configures the transmission power, transmission aperture gain, and receiving aperture gain of the first signal based on the first value of the first parameter, the capability information of the transmitting device, and the capability information of the receiving device. The capability information includes a set of information on the current available transmit power configuration and antenna array configuration of the corresponding device.

5. The method according to claim 4, characterized in that, When the first device is a transmitting device, the method further includes: The transmitting device sends the configured receiver aperture gain to the receiving device; Alternatively, if the first device is a receiving device, the method further includes: The receiving device sends the transmission power and transmitting aperture gain of the configured first signal to the transmitting device; Alternatively, if the first device is a sensing network element, the method further includes: The sensing function network element sends the transmission power and transmitter aperture gain of the configured first signal to the transmitting device, and sends the receiver aperture gain to the receiving device.

6. The method according to claim 5, characterized in that, When the first device is a transmitting device, the method further includes: The transmitting device transmits the first signal according to the configured transmission power and the transmitting aperture gain of the first signal.

7. The method according to claim 5, characterized in that, When the first device is a receiving device, the method further includes: The receiving device receives the echo signal of the first signal according to the configured receiving aperture gain.

8. The method according to claim 4, characterized in that, The first device configures the transmission power, transmitting aperture gain, and receiving aperture gain of the first signal according to a first value of the first parameter, including: The first device configures the transmission power, transmission aperture gain, and receiver aperture gain of the first signal according to the first value of the first parameter, the capability information of the transmitting device, and the capability information of the receiving device, in either a power-priority mode or an aperture-priority mode. The power priority method includes: prioritizing the configuration of the transmission power to meet the requirements of the first parameter; if the transmission power reaches the upper limit of the configured power range but still cannot meet the requirements of the first parameter, then the requirements of the first parameter are met by configuring the aperture gain of the transmitting end and / or the aperture gain of the receiving end. The aperture priority method includes: prioritizing the configuration of the transmitter aperture gain and / or receiver aperture gain to meet the requirements of the first parameter; if the transmitter aperture gain and / or receiver aperture gain reach the upper limit of the aperture gain but still cannot meet the requirements of the first parameter, then the transmission power is configured to meet the requirements of the first parameter.

9. The method according to claim 8, characterized in that, The methods for configuring the transmitter aperture gain and / or receiver aperture gain include: prioritizing the transmitter aperture gain or prioritizing the receiver aperture gain; The preferred method for transmitting aperture gain includes: prioritizing the configuration of transmitting aperture gain; if the configuration of transmitting aperture gain reaches the upper limit of transmitting aperture gain but still cannot meet the requirements of the first parameter, then the receiving aperture gain is configured to meet the requirements of the first parameter. The priority of receiver aperture gain includes: prioritizing the configuration of receiver aperture gain; if the configuration of receiver aperture gain reaches the upper limit of receiver aperture gain but still cannot meet the requirements of the first parameter, then the requirement of the first parameter is met by configuring transmitter aperture gain.

10. The method according to claim 1, characterized in that, The echo signal quality of the first target includes at least one of the following: The echo signal power of the first target; The echo signal-to-noise ratio of the first target; The interference-to-noise ratio of the echo signal of the first target; The reference signal received power of the echo signal of the first target; The reference signal reception quality of the echo signal of the first target.

11. The method according to claim 1, characterized in that, Based on the second value of the first parameter, the echo signal quality of the first target at the first moment, and the first preset echo quality, the adjustment information of the first parameter is determined, including: Based on the first formula, determine the first value of the first parameter; the first formula is: in, C represents the first value of the first parameter; C represents the second value of the first parameter. The first preset echo quality; The quality of the echo signal at the first moment for the primary target.

12. The method according to claim 1, characterized in that, Based on the second value of the first parameter, the echo signal quality of the first target at the first moment, and the range of the first echo quality, the adjustment information of the first parameter is determined, including: Based on the second formula, determine the first value of the first parameter; the second formula is: in, C represents the first value of the first parameter; C represents the second value of the first parameter. The quality of the echo signal at the first moment for the primary target; If the echo signal quality of the first target at a first moment is greater than the upper limit echo quality of the first echo quality range, then P is the upper limit echo quality of the first echo quality range; or, If the echo signal quality of the first target at a first moment is less than the lower limit echo quality of the first echo quality range, then P is the lower limit echo quality of the first echo quality range; or... P is the arithmetic or geometric mean of the upper and lower echo quality limits of the first echo quality range.

13. The method according to claim 1, characterized in that, The step of determining the first parameter adjustment information based on the second value of the first parameter, the echo signal quality of the first target at the first moment, the first preset echo quality, and the distance prediction value of the first target at the second moment includes: The first value of the first parameter is determined according to the third formula; the third formula includes: ,or, in, C represents the first value of the first parameter; C represents the second value of the first parameter. The first preset echo quality; R represents the echo signal quality of the first target at the first moment; R is the distance between the first target and the signal transceiver at the first moment in a monostation radar scenario. This is the predicted distance between the first target and the signal transceiver at the second time point in a single-station radar scenario. This represents the distance between the first target and the transmitting equipment at the first moment in a dual-station radar scenario. This is the predicted distance between the first target and the transmitting equipment at the second time point in a bistatic radar scenario. This represents the distance between the first target and the receiving device at the first moment in a dual-station radar scenario. This represents the predicted distance between the first target and the receiving device at the second time point in a bistatic radar scenario.

14. The method according to claim 1, characterized in that, Based on the second value of the first parameter, the echo signal quality of the first target at the first moment, the range of the first echo quality, and the predicted distance of the first target at the second moment, the adjustment information of the first parameter is determined, including: According to the fourth formula, the first value of the first parameter is determined; the fourth formula includes: ,or, in, C represents the first value of the first parameter; C represents the second value of the first parameter. R represents the echo signal quality of the first target at the first moment; R is the distance between the first target and the signal transceiver at the first moment in a monostation radar scenario. This is the predicted distance between the first target and the signal transceiver at the second time point in a single-station radar scenario. This represents the distance between the first target and the transmitting equipment at the first moment in a dual-station radar scenario. This is the predicted distance between the first target and the transmitting equipment at the second time point in a bistatic radar scenario. This represents the distance between the first target and the receiving device at the first moment in a dual-station radar scenario. This is the predicted distance between the first target and the receiving device at the second time point in a bistatic radar scenario. If the echo signal quality of the first target at a first moment is greater than the upper limit echo quality of the first echo quality range, then P is the upper limit echo quality of the first echo quality range; or, If the echo signal quality of the first target at a first moment is less than the lower limit echo quality of the first echo quality range, then P is the lower limit echo quality of the first echo quality range; or... P is the arithmetic or geometric mean of the upper and lower echo quality limits of the first echo quality range.

15. The method according to claim 1, characterized in that, Before determining the first parameter adjustment information based on the parameters of the first target, the method further includes: The RCS of the first target is determined based on the echo signal power of the first target and the first distance of the first target relative to the transceiver device. or, The RCS of the first target is determined based on the echo signal power of the first target, the second distance of the first target relative to the transmitting device, and the third distance of the first target relative to the receiving device.

16. The method according to claim 1, characterized in that, The method further includes: Based on a first condition, determine the first preset echo quality or the first echo quality range; the first condition includes at least one of the following: The quality of the echo signal required by the sensing indicators in the sensing needs; The quality of the echo signal corresponding to the required transmit signal power for the communication function in a synergistic application; In applications of integrated induction and communication, the interference level of the communication function limits the required echo signal quality.

17. A parameter determination device for wireless sensing, applied to a first device, characterized in that, include: The first determining module is used to determine first parameter adjustment information based on the echo signal quality of the first target or the parameters of the first target; the first parameter adjustment information is used to indicate the signal transmission and echo signal reception at the second time. Wherein, the first device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target; or, the first device receives the echo signal quality of the first target or the parameters of the first target from the second device, and the second device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality of the first target or the parameters of the first target. Wherein, the second time point is after the first time point; the value of the first parameter is determined by the first product, which is the product of the transmit power of the first signal, the transmit aperture gain, and the receive aperture gain; the parameters of the first target include at least one of the radar cross-section (RCS) of the first target and the range information of the first target. The first determining module includes: The first determining submodule is used to determine the first parameter adjustment information based on the quality of the echo signal of the first target at the first moment; or, The second determining submodule is used to determine the first parameter adjustment information based on the predicted distance value of the first target at the second time moment and the echo signal quality of the first target at the first time moment. The first determining submodule includes: The first determining unit is configured to determine first parameter adjustment information based on a second value of the first parameter, the first moment echo signal quality of the first target, and the first preset echo quality when it is determined that the echo signal quality of the first target should be maintained near the first preset echo quality. or, The second determining unit is used to determine the first parameter adjustment information based on the second value of the first parameter, the first moment echo signal quality of the first target, and the first echo quality range when it is determined that the echo signal quality of the first target will be maintained within the first echo quality range. The second determining submodule includes: The third determining unit is used to determine the first parameter adjustment information based on the second value of the first parameter, the first moment echo signal quality of the first target, the first preset echo quality, and the distance prediction value of the first target at the second moment, when it is determined that the echo signal quality of the first target should be maintained near the first preset echo quality. or, The fourth determining unit is used to determine the first parameter adjustment information based on the second value of the first parameter, the first moment echo signal quality of the first target, the first echo quality range, and the distance prediction value of the first target at the second moment, when it is determined that the echo signal quality of the first target will be maintained within the first echo quality range.

18. A first device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the wireless sensing parameter determination method as described in any one of claims 1 to 16.

19. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the wireless sensing parameter determination method as described in any one of claims 1-16.

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