CN117715127A

CN117715127A - Sensing mode switching method, device and equipment

Info

Publication number: CN117715127A
Application number: CN202211105553.4A
Authority: CN
Inventors: 李健之; 姜大洁
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2024-03-15

Abstract

The application discloses a method, a device and equipment for switching a perception mode, which belong to the technical field of communication, and the method in the embodiment of the application comprises the following steps: the first equipment receives indication information of the second equipment; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device; the first device determines a first switching target from the second device and/or determines a second switching target from the third device according to the indication information and the target perception mode; wherein the second device is a candidate perception node; the third device is a candidate backscatter device.

Description

Sensing mode switching method, device and equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a sensing mode switching method, device and equipment.

Background

Currently, wireless sensing based on low-power-consumption Backscatter devices (such as radio frequency identification tags (RFID tags) or Backscatter tags (backscattering tags)) in a (cellular) mobile communication network is one of important development trends of sense of general integration, and has a wider application scene.

Thus, how to realize switching between a sensing node and a backscattering device for the technology of integrating the sense of participation of the backscattering device has become a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a sensing mode switching method, a sensing mode switching device and sensing mode switching equipment, which can realize switching of sensing nodes and/or back scattering equipment in general sense integration participated by the back scattering equipment.

In a first aspect, a method for switching a sensing mode is provided, including:

the first equipment receives indication information of the second equipment; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device;

the first device determines a first switching target from the second device and/or determines a second switching target from the third device according to the indication information and the target perception mode;

wherein the second device is a candidate perception node; the third device is a candidate backscatter device.

In a second aspect, a sensing mode switching device is provided, including:

the first receiving module is used for receiving the indication information of the second equipment; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device;

the first determining module is used for determining a first switching target from the second equipment and/or determining a second switching target from the third equipment according to the indication information and the target perception mode;

In a third aspect, a method for switching a sensing mode is provided, including:

the second device sends indication information to the first device; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device; the second device is a candidate perception node.

In a fourth aspect, a sensing mode switching device is provided, including:

the first sending module is used for sending indication information to the first equipment; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device; the second device is a candidate perception node.

In a fifth aspect, a method for switching a sensing mode is provided, including:

the third device receives second request information of the first device; the second request information is used for requesting the third device to serve as candidate back scattering devices participating in perception measurement corresponding to the target perception mode; the second request information comprises first parameter configuration information suggested by the first device; the first parameter configuration information comprises a sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device.

In a sixth aspect, a sensing mode switching device is provided, including:

The second receiving module is used for receiving second request information of the first equipment; the second request information is used for requesting the third device to serve as candidate back scattering devices participating in perception measurement corresponding to the target perception mode; the second request information comprises first parameter configuration information suggested by the first device; the first parameter configuration information comprises a sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device.

In a seventh aspect, a communication device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect, or the steps of the method as described in the third aspect.

In an eighth aspect, a communication device is provided, comprising a processor and a communication interface, wherein,

the communication interface is used for receiving the indication information of the second equipment; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device; the processor is used for determining a first switching target from the second equipment and/or determining a second switching target from the third equipment according to the indication information and the target perception mode; wherein the second device is a candidate perception node; the third device is a candidate backscatter device;

Or,

the communication interface is used for sending indication information to the first equipment; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device; the second device is a candidate perception node.

In a ninth aspect, there is provided a backscatter device comprising a processor and a memory storing a program or instructions executable on the processor, the program or instructions implementing the steps of the method as described in the fifth aspect when executed by the processor.

In a tenth aspect, a backscatter device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to receive second request information of a first device; the second request information is used for requesting the third device to serve as candidate back scattering devices participating in perception measurement corresponding to the target perception mode; the second request information comprises first parameter configuration information suggested by the first device; the first parameter configuration information comprises a sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device.

In an eleventh aspect, a sensing mode switching system is provided, including: a communication device operable to perform the steps of the method as described in the first aspect or the steps of the method as described in the third aspect, and a backscatter device operable to perform the steps of the method as described in the fifth aspect.

In a twelfth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect, or performs the steps of the method according to the fifth aspect.

In a thirteenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being adapted to run a program or instructions, to carry out the steps of the method according to the first aspect, or to carry out the steps of the method according to the third aspect, or to carry out the steps of the method according to the fifth aspect.

In a fourteenth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to perform the steps of the method according to the first aspect, or to perform the steps of the method according to the third aspect, or to perform the steps of the method according to the fifth aspect.

In this embodiment of the present application, after receiving the indication information of the second device, the first device may determine the first handover target from the candidate sensing node and/or determine the second handover target from the candidate backscatter device according to the indication information, that is, determine the handover target, because the indication information is obtained by performing sensing measurement based on the first parameter configuration information, and the indication information may be used to determine the handover target, so as to complete the handover of the target sensing mode.

Drawings

Fig. 1 is a block diagram of a wireless communication system;

FIG. 2 is a schematic flow chart of a sensing mode switching method according to an embodiment of the present application;

FIG. 3 is one of the perspective integrated scene schematics;

FIG. 4 is a second schematic view of a sense of openness integrated scene;

FIG. 5 is a third schematic view of a sense of general integration scene;

FIG. 6 is a fourth schematic view of a sense of general integrated scene;

FIG. 7 is a second flow chart of a sensing mode switching method according to the embodiment of the present application;

FIG. 8 is a third flow chart of a sensing mode switching method according to the embodiment of the present application;

FIG. 9 is a schematic diagram of a sensing mode switching device according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a sensing mode switching device according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a sensing mode switching device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a network side device according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of another network side device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm Computer, a netbook, an Ultra-mobile personal Computer (Ultra-Mobile Personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented Reality (Augmented Reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (Personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. The access network device may include a base station, a WLAN access point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission receiving point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is described by way of example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. In the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

For ease of understanding, some of the matters related to the embodiments of the present application are described below:

1. communication perception integration/communication perception integration

Wireless Communication and radar Sensing (C & S) have been developed in parallel, but with limited intersections. They share much in terms of signal processing algorithms, devices, and to some extent system architecture. In recent years, conventional radars are moving toward more general wireless perception. Wireless perception may broadly refer to retrieving information from a received radio signal. For wireless sensing related to the sensing target position, dynamic parameters such as reflection delay, arrival angle, departure angle, doppler and the like of a target signal can be estimated through a common signal processing method; for sensing target physical characteristics, this can be achieved by measuring the natural signal pattern of the device/object/activity. The two sensing modes can be respectively called sensing parameter estimation and pattern recognition. In this sense, wireless sensing refers to more general sensing techniques and applications that use radio signals.

Communication awareness integration (Integrated Sensing and Communication, ISAC) has the potential to integrate wireless awareness into mobile networks, referred to herein as aware mobile networks (Perceptive Mobile Networks, PMNs). Perceived mobile networks are capable of providing both communication and wireless perceived services and are expected to be a ubiquitous wireless sensing solution due to their large broadband coverage and powerful infrastructure. The perception mobile network can be widely applied to communication and sensing in the fields of traffic, communication, energy, precision agriculture and safety. The sensor network can also provide complementary sensing capability for the existing sensor network, has unique day and night operation function, and can penetrate fog, leaves and even solid objects.

2. Low power backscatter communications

Currently, point-to-point Backscattering (BSC) technology has been widely used in radio frequency identification (Radio Frequency Identification, RFID) applications, where passive RFID tags (tags) can report IDs to a reader (reader) that interrogates near field (typically a few centimeters to a meter). In early stages, the internet of things consisted primarily of RFID devices for logistics and inventory management. However, future 6G internet of things are expected to connect hundreds of billions of devices, accomplish more complex, more functional tasks, and have a global impact. This requires that the communication capability and range (tens of meters) between the nodes of the internet of things be far beyond the original RFID, i.e. only burst and low rate (only transmission of pre-written ID sequences of several bytes) in the range of a few meters are supported. The traditional RFID communication distance is m orders of magnitude, and the communication distance of the BSC of the next generation is generally expected to reach km orders of magnitude; conventional RFID uses binary modulation, and the communication rate is generally not more than 640Kbps; the next generation BSC may employ high order modulation with communication rates up to at least 10Mbps, and even 2Gbps. This is achieved based on existing BSC theory, using advanced communication technologies such as small cellular networks, full duplex, multi-antenna communications, large scale access and wireless power transfer, as well as micro-radios (e.g., button-sized radios) and low power electronics manufacturing.

Backscatter communication refers to the transmission of its own information by signal modulation of radio frequency signals in other devices or environments by a backscatter communication device. A backscatter communications device, which may be

The backscatter communication device in conventional RFID, typically a tag, belongs to a Passive IoT device (Passive-IoT),

-semi-passive (semi-passive) tags, the downstream reception or upstream reflection of such tags having a certain amplifying capability;

tag (active tag) with active transmission capability, such terminals can send information to the reader independent of reflection of the incoming signal.

A simple implementation is that when a tag needs to send a '1', the tag reflects the incoming carrier signal and when the tag needs to send a '0', the tag does not reflect.

The backscattering communication device controls the reflection coefficient f of the circuit by adjusting its internal impedance, thereby changing the amplitude, frequency, phase, etc. of the incident signal, and realizing the modulation of the signal.

3. Backscattering device (tag) based perception

The sense of general integration can promote a series of 6G new applications, and the sense of general integration based on low-power consumption communication equipment also becomes an important application scene of 6G. Compared with the wireless sensing of Device-free, the wireless sensing based on RFID and backscatter communication technology realizes basic sensing function and simultaneously can acquire additional sensing target information, thereby being expected to further enhance sensing/through sensing integrated performance. Because RFID and backscatter have low cost, low power consumption, do benefit to the advantage of extensive deployment, the perception based on RFID/backscatter and sense of general integration are expected to obtain wide application in 6G. For example, a Road Side Unit (RSU) with a sensing function in the internet of vehicles can communicate with road running vehicles through self-receiving and transmitting integrated signals, and meanwhile, vehicle positioning, speed measurement and track tracking are completed. When an RFID or a backscattering tag is mounted on the vehicle, the tag can additionally provide auxiliary information such as a vehicle ID, a current state of the vehicle, and the like. The RSU can accurately identify and distinguish different vehicles on the road by receiving the reflected signals of the tag while realizing high-precision vehicle positioning, speed measurement and track tracking, thereby expanding the perception capability.

Currently, many RFID-based wireless sensing studies have emerged. For example, by adding a tag to a drip box at a hospital drip site, real-time monitoring of drip speed for a plurality of patients can be achieved simultaneously. Target orientation identification, target material identification, cross-sectional imaging, and the like can be achieved with the deployment of multiple low cost tags around the perceived target. Backscatters are capable of providing higher communication rates and greater communication distances than the RFID devices currently in wide commercial use. Therefore, future wireless sensing based on backscatters is expected to become an important implementation way of sense of general integration.

4. NR communication handover

The switching is the mobile triggering of the terminal in the connected state, and the basic target of the switching is as follows: indicating that the UE can communicate with a cell with better channel quality than the current serving cell; and continuous uninterrupted communication service is provided for the UE, so that dropped calls caused by poor signal quality of cells are effectively prevented. In order to overcome the problem of end-to-end switching delay and improve the switching success rate, the communication switching technology provides the function of conditional switching (Conditional Handover, CHO).

The following describes in detail a method, an apparatus, and a device for switching a sensing mode provided in the embodiments of the present application through some embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 2, a method for switching a sensing mode in an embodiment of the present application includes:

step 201, a first device receives indication information of a second device; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a backscattering device.

The second device performs sensing measurement based on the first parameter configuration information, and informs the first device of the indication information after the indication information is obtained, so that the first device executes subsequent steps to determine a switching target, namely a switched target sensing node and/or a target backscattering device.

Step 202, the first device determines a first switching target from the second device and/or determines a second switching target from a third device according to the indication information and the target perception mode;

Here, the first switching target is the switched target-aware node and the second switching target is the switched target backscatter device. In this step, the first device completes the determination of the first switching target and/or the second switching target according to the indication information received in step 201 and in combination with the target sensing manner.

Thus, after receiving the indication information of the second device according to the steps 201 to 202, the first device can determine the first handover target from the candidate sensing node and/or determine the second handover target from the candidate backscatter device according to the indication information, that is, determine the handover target, because the indication information is obtained by performing sensing measurement based on the first parameter configuration information, and the indication information can be used to determine the handover target, so as to complete the handover of the target sensing mode.

Optionally, the first parameter configuration information may include a sensing parameter configuration used by the sensing node, so that the candidate sensing node or the target sensing node performs a sensing measurement corresponding to the target sensing mode; the first parameter configuration information may also include a perception parameter configuration used by the backscatter device such that the candidate backscatter device or the target backscatter device participates in a perception measurement corresponding to the target perception mode.

It should be noted that, the candidate sensing node corresponding to the target sensing mode is the first sensing mode, if the candidate sensing node sends the first signal, the first parameter configuration information includes sensing parameter configuration related to sending the first signal; if the candidate sensing node receives the first signal, the first parameter configuration information comprises sensing parameter configuration related to the received first signal. The first parameter configuration information comprises sensing parameter configurations related to a first signal, and sensing parameter configurations related to the first signal are received.

Alternatively, the sensing node may also be referred to as a node participating in sensing. In a mobile communication network, a base station (including some 1 or more transmission and reception points (Transmission Reception Point, TRP) on the base station, user Equipment (UE) (including 1 or more sub-arrays/panels (panels) on the UE) may be used as a sensing node for participating in a sensing/passing integrated service.

Alternatively, the sensing node before switching is called a source node or a source sensing node, the sensing node after switching is called a target node or a target sensing node, and the node possibly selected as the target node is called a candidate node or a candidate sensing node. Likewise, the backscatter devices before switching are referred to as source backscatter devices, the backscatter devices after switching are referred to as target backscatter devices, and the backscatter devices that may be selected as target backscatter devices are referred to as candidate backscatter devices.

The first device may be a base station, a UE, or a device in a core network, for example, a Sensing Function (SF), an AMF, a Sensing application server in the core network, or the like. Of course, the first device may be a source aware node.

Optionally, the target awareness mode includes one of the following:

a first sensing mode, wherein the first sensing mode indicates that sensing nodes for sending and receiving first signals are different;

a second sensing mode, wherein the second sensing mode represents that sensing nodes for sending and receiving the first signals are the same;

the first signal is used for sensing and measuring a sensing target, and at least part of the first signal is reflected by the back scattering equipment to reach a receiving end of the first signal.

Here, the first signal is sent and received between the sensing nodes, so that sensing of a certain area or a certain entity target (sensing target) can be realized. The first Signal may be a Signal that does not contain transmission information, such as existing LTE/NR synchronization and Reference signals, including synchronization and physical broadcast channel (Synchronization Signal and PBCH Block, SSB) signals, channel state information Reference signals (Channel State Information-Reference Signal, CSI-RS), demodulation Reference signals (Demodulation Reference Signal, DMRS), channel sounding Reference signals (Sounding Reference Signal, SRS), positioning Reference signals (Positioning Reference Signal, PRS), phase tracking Reference signals (Phase Tracking Reference Signal, PTRS), etc.; it may also be a single frequency Continuous Wave (CW), a frequency modulated Continuous Wave (Frequency Modulated CW, FMCW), an ultra wideband gaussian pulse, etc. commonly used for radars; the signal can be a special signal with a new design, has good correlation characteristics and low peak-to-average power ratio, or a general sense integrated signal with a new design, not only carries certain information, but also has better perception performance. For example, the new signal is formed by splicing/combining/superposing at least one special sensing signal/reference signal and at least one communication signal in the time domain and/or the frequency domain.

Depending on whether the sensing nodes are the same or different, two sensing modes can be divided: a first perception mode and a second perception mode. Whether the sensing nodes are the same, namely whether the sensing nodes are the same device or not, can be distinguished through physical positions. Taking the sensing node A and the sensing node B as different sensing nodes as examples, the first sensing mode can be A sending and B receiving, and the second sensing mode can be A spontaneous self receiving. The A-sending B-receiving means that the sensing node A and the sensing node B are not the same equipment and are separated in physical position; a self-receiving means that the first signal transmission and reception are performed by the same device, and a perceives by receiving a signal echo transmitted by itself.

In this embodiment, the target sensing mode refers to a sensing mode after switching, for example, the source sensing node spontaneously receives before switching, that is, the source sensing mode is the second sensing mode, and the switching requirement is that the target sensing mode is the first sensing mode, that is, the sending and receiving (and/or sending and receiving) of a is achieved by determining the switching target sensing node a and the target sensing node B. Of course, the target sensing mode and the source sensing mode may be the same.

During sensing, the sensing node receives at least part of the first signal reflected/scattered by the backscatter devices involved in sensing and obtains sensing measurement result information (e.g. sensing measurement value, sensing result, etc.). The number of backscatter devices involved in perception may be equal to 1 and may be greater than 1. Taking 1 backscatter device as an example, it may be: the backscattering device shown in fig. 3 is coupled with the sensing target, and the sensing is integrated in a first sensing mode; the backscattering device shown in fig. 4 is coupled with the sensing target, and the sensing is integrated in a second sensing mode; the backscattering device shown in fig. 5 is decoupled from the sensing target and is integrated with the sense of openness in a first sensing mode; the backscatter device shown in fig. 6 is decoupled from the perceived target and is integrated with the perceived sense in a second perceived manner.

It should be noted that, the backscattering device may directly reflect/scatter the first signal during the process of reflecting/scattering the first signal, without any processing on the first signal; the first signal may be reflected/scattered after being modulated with information, and the modulation method may be amplitude modulation, phase modulation, frequency modulation, or a combination of any of the foregoing methods, which is less than 2, and is not particularly limited herein.

Optionally, in this embodiment, the indication information further includes at least one of:

identification information of the second device;

identification information of the third device;

second parameter configuration information, wherein the second parameter configuration information comprises a sensing parameter configuration used when the second device or the first switching target executes sensing measurement corresponding to a target sensing mode;

third parameter configuration information including a sensing parameter configuration used when the third device or the second handover target participates in performing sensing measurement;

and communicating measurement result information.

Wherein the sensing measurement result information includes at least one of a sensing measurement value, a sensing result, and a sensing performance evaluation index result (sensing performance evaluation index measurement value). Specifically, the sensing measurement quantity measurement includes: and when the perception measurement corresponding to the target perception mode is executed, at least one perception measurement value of at least one perception measurement quantity is obtained. Also, the perceived result includes: and executing the perception performance corresponding to the target perception mode, and at least one perception result of at least one perception measurement quantity is obtained through at least one perception measurement. Similarly, the perceptual performance evaluation index measurements include: and when the perception performance evaluation corresponding to the target perception mode is executed, at least one perception measurement value of at least one perception performance evaluation index is obtained. The perceptual measurement also includes a perceptual performance evaluation, the perceptual performance evaluation indicator measurement being calculated based on the perceptual measurement quantity.

Alternatively, the perceived measurement may be classified into the following 4 categories:

a) First-order measurement quantity (received signal/raw channel information), comprising: the method comprises the steps of receiving a signal/channel response complex result, amplitude/phase, I/Q path and operation results thereof (operations comprise addition, subtraction, multiplication, matrix addition, multiplication, matrix transposition, trigonometric relation operation, square root operation, power operation and the like, threshold detection results of the operation results, maximum/minimum value extraction results and the like, and the operations also comprise fast Fourier transform (Fast Fourier Transform, FFT)/inverse fast Fourier transform (Inverse Fast Fourier Transform, IFFT), discrete Fourier transform (Discrete Fourier Transform, DFT)/inverse discrete Fourier transform (Inverse Discrete Fourier Transform, IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform, digital filtering and the like, and threshold detection results, maximum/minimum value extraction results and the like of the operation results);

b) A second-stage measurement quantity (basic measurement quantity) including: delay, doppler, angle, intensity, and multi-dimensional combined representations thereof;

c) Third level measurement (basic properties/states), comprising: distance, speed, orientation, spatial position, acceleration;

d) Fourth level measurement (advanced property/state), comprising: whether or not the target is present, trajectory, motion, expression, vital sign, number, imaging result, weather, air quality, shape, material, composition.

Optionally, the sensing measurement quantity further includes corresponding tag information: sensing signal identification information, sensing measurement configuration identification information, sensing service information (such as sensing service ID), data subscription ID, measurement volume usage (communication, sensing, sense), time information, sensing node information (such as UE ID, node location, device orientation), sensing link information (such as sensing link sequence number, transceiving node identification), measurement volume specification information (form, e.g., magnitude value, phase value, complex value of magnitude and phase combination; resource type, e.g., time domain measurement result, frequency domain resource measurement result), measurement volume index information (such as signal to noise ratio (Signal Noise Ratio, SNR), sensing SNR).

Optionally, the perceptual performance evaluation index comprises at least one of:

1) Perceptual SNR, i.e. the ratio of the perceived signal energy reflected by a perceived target (perceived object) or perceived region to the noise signal energy in the environment and the device;

2) Perceived signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR), i.e., the ratio of perceived signal energy reflected by a perceived target or perceived region to the sum of the energies of the interfering signal and noise signal in the environment and device;

3) Statistical means, standard deviations or variances of a plurality of measurement values of the same sensing measurement quantity;

4) Deviation of a predicted value of a perceived measurement/perceived result from an actual measurement value, and a statistical mean, standard deviation, or variance of the deviation;

5) Perceptually reproducible evaluation metrics (such as the sum of Euclidean distances (Euclidean Distance) between the front and back sequence samples, or the regular path distances in dynamic time planning (Dynamic Time Warping, DTW), or other metrics that reflect the similarity of two sequences, including but not limited to: the longest common string (Longest Common Subsequence, LCSS), the real sequence edit Distance (Edit Distance on Real Sequences, EDR), the real penalty edit Distance (Edit Distance with Real Penalty, ERP), the hausdorff Distance (Hausdorff Distance), the frechet Distance (frechet Distance), the One-Way Distance (OWD), the multi-line location Distance (location In-between Polylines, LIP), and the like.

Wherein the identification information of the second device may be a candidate sensing node ID; the identification information of the third device may be a candidate backscatter device ID.

And if the second parameter configuration information comprises the sensing parameter configuration used by the first switching target when the first switching target executes the sensing measurement corresponding to the target sensing mode, the sensing parameter configuration is the sensing parameter configuration recommended by the second equipment and used by the first switching target when the first switching target executes the sensing measurement corresponding to the target sensing mode. After the first switching target is determined, the sensing parameter configuration actually used when the first switching target performs the sensing measurement corresponding to the target sensing mode may be the sensing parameter configuration used when the first switching target performs the sensing measurement corresponding to the target sensing mode and included in the second parameter configuration information, or may be the sensing parameter configuration corresponding to the first parameter configuration information.

It should be noted that, corresponding to the target sensing manner, the implementation of the second parameter configuration information is similar to the first parameter configuration information, and will not be described herein.

And if the third parameter configuration information comprises a sensing parameter configuration used by the second switching target to participate in executing the sensing measurement, the sensing parameter configuration is a sensing parameter configuration recommended by the second equipment and used by the second switching target to participate in executing the sensing measurement. After the second switching target is determined, the actual sensing parameter configuration used by the second switching target in executing the sensing measurement may be the sensing parameter configuration used by the second switching target in executing the sensing measurement, which is included in the third parameter configuration information, or may be the sensing parameter configuration corresponding to the first parameter configuration information. It should be noted that, corresponding to the target sensing manner, the implementation of the third parameter configuration information is similar to the first parameter configuration information, and will not be described herein.

Wherein the communication measurement result information comprises at least one measurement value of the communication measurement quantity of the at least one communication measurement.

Optionally, the communication measurement comprises at least one of: reference signal received power (Reference Signal Received Power, RSRP), signal-to-noise ratio (Signal Noise Ratio, SNR), signal-to-interference-and-noise ratio (Signal to Interference plus Noise Ratio, SINR), reference signal received quality (Reference Signal Received Quality, RSRQ), received signal strength indicator (Received Signal Strength Indicator, RSSI), bit error rate, block error rate, throughput, spectral efficiency, etc.

Optionally, in this embodiment, the method further includes:

in the case of determining a first switching target from the second device, the first device transmits a first switching command to the first switching target; the first switching command is used for notifying the first switching target to execute sensing measurement corresponding to the target sensing mode.

That is, after determining the target sensing node, the first device transmits a first handover command (which may also be referred to as first handover confirmation information) to the target sensing node. The receiving device of the first switching command can know that the receiving device needs to serve as a target sensing node, execute subsequent sensing measurement and realize sensing measurement corresponding to the target sensing mode.

Of course, the first device sends a first cancel handover command (may also be the first cancel handover information) to the remaining candidate sensing nodes among the candidate sensing nodes, which are candidate sensing nodes other than the first handover target. The first cancellation switching command is used for notifying the remaining candidate sensing nodes to cancel executing sensing measurement and releasing reserved sensing resources. In this way, the receiving device of the first cancel handover command can know that the receiving device is not the target sensing node, so as to cancel performing sensing measurement and release reserved sensing resources.

Optionally, in this embodiment, before the first device receives the indication information of the second device, the method further includes:

the first device sends first request information to the second device; the first request information is used for requesting the second device to serve as a candidate sensing node for executing sensing measurement corresponding to the target sensing mode; the first request information includes the first parameter configuration information suggested by the first device.

Here, the first device initiates switching of the sensing manner through the first request information. The first device sends first request information to the candidate sensing node, and requests a first request information receiver as the candidate sensing node, wherein the first request information receiver comprises one or more. The first request information includes the first parameter configuration information suggested by the first device, so that the second device can execute the sensing measurement corresponding to the target sensing mode according to the first parameter configuration information suggested by the first device after receiving the first request information. Of course, after receiving the first request information, the second device may perform the sensing parameter configuration actually used in the sensing measurement corresponding to the target sensing manner, or may not be the first parameter configuration information suggested by the first device, such as the predefined or configured first parameter configuration information.

It should be noted that, if the candidate sensing node sends the first signal, the first parameter configuration information suggested by the first device included in the first request information includes sensing parameter configuration related to sending the first signal; if the candidate sensing node receives the first signal, the first request message includes first parameter configuration information suggested by the first device, including sensing parameter configuration related to the received first signal.

The candidate sensing node decides whether to agree to the handover after receiving the first request information. That is, the candidate sensing node that receives the first request information does not necessarily need to transmit the indication information.

If the candidate sensing node agrees to switch, the candidate sensing node (i.e. the second device) executes sensing measurement corresponding to the target sensing mode based on the first parameter configuration information. At this time, the first parameter configuration information may be first parameter configuration information suggested in the first request information, and/or first parameter configuration information predefined or configured. The second device informs the first device of the obtained indication information after performing at least one sensing measurement. If the candidate sensing node does not agree with the handover, the candidate sensing node may further send first rejection information to the first device, and notify the first device that the first rejection information sender does not perform sensing measurement.

Alternatively, the first request information may be soft handover request information.

Optionally, the first parameter configuration information includes soft handover parameter configuration information. The first parameter configuration information suggested by the first device in the first request information comprises soft handover parameter configuration information.

Optionally, before the first device sends the first request information, the first device may determine the candidate aware node based on at least one of:

1) Sensing the position of the node;

2) Sensing the antenna panel orientation of the node;

3) Sensing the motion state of the node (including information such as moving speed, moving direction, and time period for keeping still/moving);

4) Sensing capabilities of sensing nodes (including sensing coverage, maximum bandwidth available for sensing, maximum sustainable time of sensing service, type of sensing signal which can be supported, frame format, UE antenna array information (array type, number of antennas, array aperture, antenna polarization characteristics, array element gain and directivity characteristics, etc.);

5) Sensing resources of the sensing node are, for example, resources (including time resources (symbol number, time slot number, frame number, etc.), frequency resources (Resource Block (RB) number, resource Element (RE) number, total bandwidth, available frequency band position, etc.), antenna resources (antenna/antenna subarray number), phase modulation resources (hardware phase shifter number), orthogonal code resources (orthogonal code length and number), etc.) which are currently available for sensing;

6) The channel state of the node is perceived (including at least one of channel transfer function/channel impulse response, channel quality indication (Channel Quality Indicator, CQI), precoding matrix indication (Precoding Matrix Indicator, PMI), CSI-RS resource indication, SSB resource indication, layer Indication (LI), rank Indication (RI), and L1-RSRP of at least one communication link).

Alternatively, in this embodiment, in a case where all candidate sensing nodes do not agree to the handover, the subsequent processing may be one of the following: the first device re-determines candidate sensing nodes; maintaining a current perception measurement; ending the current perception measurement.

Optionally, the method further comprises:

and under the condition that a second switching target is determined from the third equipment, the first equipment sends a second switching command to the second switching target, wherein the second switching command is used for notifying the third equipment to participate in the perception measurement corresponding to the target perception mode.

That is, after the first device determines the target backscatter device, a second handover command (which may also be referred to as second handover confirmation information) is sent to the backscatter device. The receiving device of the second switching command can know that the receiving device needs to serve as the target back scattering device and participate in subsequent perception measurement, so as to realize the perception measurement corresponding to the target perception mode.

Of course, the first device transmits a second cancel handover command (may also become second cancel handover information) to the remaining candidate backscatter devices among the candidate backscatter devices, which are devices other than the first handover target. The second cancel handover command is used for notifying the remaining candidate backscatter devices to cancel participating in the sensing measurement and releasing the reserved sensing resources. In this way, the receiving device of the second cancel handover command can know that the receiving device is not the target backscatter device, so as to cancel performing the sensing measurement and release the reserved sensing resource.

Optionally, the first device sends a second handover command to the second handover target, including:

and the first device sends the second switching command through a back scattering device checking flow.

That is, the first device sends the second handover command and/or the second cancel handover command may be implemented by a backscatter device inventory procedure. For example, the first device selects at least part of the backscatter devices in the first signal coverage area for inventory through a Select command; thereafter, the first device sends a second handover command and/or a second cancel handover command to at least 1 target backscatter device of the at least partial backscatter device through RN16 and command field of the ACK message.

Optionally, before the first device receives the indication information of the second device, the method further includes:

the first device sends second request information to the third device; the second request information is used for requesting the third device to serve as candidate back scattering devices participating in perception measurement corresponding to the target perception mode; the second request information includes the first parameter configuration information suggested by the first device.

Here, the first device initiates switching of the sensing mode through the second request information. The first device sends second request information to the candidate backscatter devices, requesting a second request information recipient as candidate backscatter devices, the first request information recipient comprising one or more. The second request information includes the first parameter configuration information suggested by the first device, so that the third device can participate in the sensing measurement corresponding to the target sensing mode according to the first parameter configuration information suggested by the first device after receiving the first request information. Of course, after receiving the second request information, the third device participates in the actual configuration of the sensing parameters used in the sensing measurement corresponding to the target sensing mode, and may not be the first parameter configuration information suggested by the first device, such as the predefined or configured first parameter configuration information.

The candidate backscatter device, upon receiving the second request information, decides whether to approve the handover. If the candidate backscatter device agrees to switch, the candidate backscatter device (i.e. the third device) participates in the perception measurement corresponding to the target perception mode based on the first parameter configuration information. At this time, the first parameter configuration information may be first parameter configuration information suggested in the second request information, and/or first parameter configuration information predefined or configured. If the candidate backscatter device does not agree to the handoff, the candidate backscatter device may also send a second rejection message to the first device informing the first device that the second rejection message sender is not engaged in the perceptual measurement.

Optionally, the first device sends the second request information through a back-scattering device inventory procedure. For example, the first device selects at least part of the backscatter devices in the first signal coverage area for inventory through a Select command; thereafter, the first device transmits second request information to at least 1 candidate backscatter devices of the at least partial backscatter devices through RN16 and a command field of the ACK message.

Alternatively, the second request information may be soft handover request information.

Optionally, the first parameter configuration information includes soft handover parameter configuration information. The first parameter configuration information suggested by the first device in the second request information comprises soft handover parameter configuration information.

Optionally, before the first device sends the second request information to the third device, the method further includes:

the first equipment acquires equipment information of a back scattering equipment in a first signal range;

the first device determines the third device according to the device information;

wherein the device information includes at least one of:

the position of the backscatter device;

the antenna panel of the backscatter device faces;

a state of motion of the backscatter device;

sensing capability of the backscatter device;

a perceived resource of the backscatter device;

channel state of the backscatter device.

Here, the first device determines a candidate backscatter device from the device information to send second request information to the candidate backscatter device.

Wherein the motion state of the backscatter device includes information of moving speed, moving direction, time period of holding still/moving, etc. The sensing capabilities of the backscatter device include sensing coverage, maximum bandwidth available for sensing, maximum sustainable time of sensing traffic, type of sensing signal and frame format that can be supported, backscatter device antenna array information (array type, number of antennas, array aperture, antenna polarization characteristics, array element gain and directivity characteristics, etc.). The sensing resources of the backscatter device include, as currently available resources for sensing, time resources (symbol number, slot number, frame number, etc.), frequency resources (RB number, RE number, total bandwidth, available frequency band position, etc.), antenna resources (antenna/antenna sub-array), phase modulation resources (hardware phase shifter number), orthogonal code resources (orthogonal code length and number), etc. The channel state of the backscatter device includes at least one of a channel transfer function/channel impulse response, CQI, PMI, CSI-RS resource indication, SSB resource indication, layer Indication (LI), rank Indication (RI), and L1-RSRP of the at least one communication link.

Optionally, the first device determines a first switching target from the second device and/or determines a second switching target from a third device according to the indication information and the target perception mode, including:

the first device uses the second device corresponding to the indication information meeting the target switching condition as the first switching target, and/or uses the third device corresponding to the indication information meeting the target switching condition as the second switching target based on the target switching condition and the target sensing mode.

In this way, when the indication information meets the target switching condition, the first device takes the second device corresponding to the indication information as a target sensing node and/or takes the third device corresponding to the indication information as a target backscattering device.

The first device may set a preset time for receiving the indication information, so that the first device receives the indication information within the preset time, and once the indication information sent by one or more candidate sensing nodes is received and meets a target switching condition, the one or more candidate sensing nodes are immediately selected as target sensing nodes, and one or more candidate backscatter devices corresponding to the indication information are selected as target backscatter devices.

In this embodiment, the target handover condition refers to a condition that needs to be satisfied for handover to occur.

Optionally, the target handover condition includes at least one of:

in a preset time period, the measured value obtained by each measurement of at least one sensing measured quantity meets a first measurement threshold;

in a preset time period, the number of first target measured values obtained by measuring at least one sensing measured quantity is larger than or equal to a second threshold value, wherein the first target measured values are measured values meeting the first measurement threshold;

in a preset time period, each evaluation result of at least one perception performance evaluation index is larger than or equal to a third threshold value;

in a preset time period, the number of target evaluation results of at least one perception performance evaluation index is larger than or equal to a fourth threshold value, wherein the target evaluation results are the evaluation results larger than or equal to the third threshold value;

in a preset time period, the measured value obtained by each measurement of at least one communication measured quantity meets a second measurement threshold;

the number of second target measured values obtained by measuring at least one communication measured quantity is larger than or equal to a sixth threshold value in a preset time period, wherein the second target measured values are measured values meeting the second measurement threshold;

In a preset time period, the quality of at least one sensing result is higher than that of a reference sensing result;

the parameter configuration information used for the measurement meets the minimum configuration requirements for perceived quality of service.

The first measurement threshold may include a first threshold, so that, in a preset period of time, a measured value obtained by each measurement of the at least one sensing measurement quantity meets the first measurement threshold, it may be understood that: and in a preset time period, the measured value obtained by each measurement of at least one perception measured quantity is larger than or equal to a first threshold value. The first threshold may be a first preset threshold of the sensing measurement value, and the sensing measurement value obtained by the source sensing node. That is, in the preset time period, the measured value obtained by each measurement of at least one sensing measurement quantity is greater than or equal to a first threshold value, and the measured value of at least one sensing measurement quantity corresponding to the candidate sensing node and/or the candidate backscattering device can be characterized to be maintained at or above the first preset threshold value in the preset time period; the measurement value of at least one sensing measurement corresponding to the candidate sensing node and/or the candidate backscatter device may also be characterized as being greater than or equal to the measurement value of the sensing measurement obtained by the source sensing node within a preset time period. Here, the first threshold belongs to a lower limit of the measured value, and the first measurement threshold may further include an upper limit, which is not described herein.

The second threshold may be a first preset number of times, and a number of times related to a sensing measurement value obtained by the source node. That is, in the preset time period, the number of the first target measured values obtained by measuring at least one sensing measurement quantity is greater than or equal to the second threshold value, which can characterize that the number of times that the candidate sensing node and/or the candidate backscatter device exceeds the first preset threshold value (for example, the number of times that the measured value of at least one sensing measurement quantity is greater than or equal to the first threshold value) reaches the first preset number of times in the preset time period; the number of perceptual measurement measurements made by the candidate perceptual nodes and/or the candidate backscatter devices beyond the source node within a preset time period may also be characterized.

The third threshold may be a second preset threshold of the perceptual performance evaluation index result (the evaluation result of the perceptual performance evaluation index), and the evaluation result of the perceptual performance evaluation index obtained by the source node. That is, in the preset time period, each evaluation result of at least one perception performance evaluation index is greater than or equal to a third threshold value, and the index result of at least one perception performance evaluation index corresponding to the candidate perception node and/or the candidate backscatter device can be characterized to be maintained at or above a second preset threshold value in the preset time period; the method can also represent that the index result of at least one perception performance evaluation index corresponding to the candidate perception node and/or the candidate backscattering device is larger than or equal to the index result of the perception performance evaluation index obtained by the source perception node in a preset time period.

The fourth threshold may be a second preset number of times, which is related to an evaluation result of the perceptual performance evaluation obtained by the source node. That is, in the preset time period, the number of target evaluation results of at least one perceptual performance evaluation index is greater than or equal to the fourth threshold, which may represent that the number of times that the candidate perceptual node and/or the candidate backscatter device exceeds the second preset threshold (i.e., the number of times that the index result of at least one perceptual performance evaluation index is greater than or equal to the second preset threshold) reaches the second preset number of times in the preset time period; the number of times that the candidate sensing node and/or the candidate backscatter device exceeds the sensing performance evaluation result obtained by the source node in a preset time period can also be characterized.

Wherein the second measurement threshold may include a fifth threshold, so that, in a preset period of time, the measured value obtained by each measurement of the at least one communication measurement quantity meets the second measurement threshold, it may be understood that: and in the preset time period, the measured value obtained by each measurement of at least one communication measured quantity is larger than or equal to a fifth threshold value. The fifth threshold may be a third preset threshold, a measured value of the traffic measurement obtained by the source node. That is, in the preset time period, the measured value of at least one communication measurement quantity obtained by each measurement is greater than or equal to a fifth threshold value, and the measured value of at least one communication measurement quantity corresponding to the candidate sensing node and/or the candidate backscattering device can be characterized to be maintained at or above a third preset threshold value in the preset time period; the measurement value of the communication measurement quantity corresponding to the candidate sensing node and/or the candidate back-scattering device can be characterized as being greater than or equal to the measurement value of the communication measurement quantity obtained by the source sensing node in a preset time period. Here, the fifth threshold belongs to a lower limit of the measured value, and the second measurement threshold may further include an upper limit, which is not described herein.

The sixth threshold may be a third preset number of times, which is related to the measured value of the communication measurement quantity obtained by the source node. That is, in the preset time period, the number of second target measurement values obtained by measuring at least one communication measurement quantity is greater than or equal to a sixth threshold value, which may indicate that the number of times the candidate sensing node and/or the candidate backscatter device exceeds a third preset threshold value (for example, the number of times the measurement value of at least one communication measurement quantity is greater than or equal to a fifth threshold value) reaches a third preset number of times in the preset time period; the number of communication measurement measurements made by the candidate sensing node and/or the candidate backscatter device beyond the source node within a preset time period may also be characterized.

The reference sensing result may be a sensing result of the source node. That is, the quality of the at least one perceived result is higher than the quality of the reference perceived result for a preset period of time, and the quality of the at least one perceived result is higher than the quality of the perceived result of the source node for the preset period of time may be characterized by the candidate perceived node and/or the candidate backscatter device.

Wherein the minimum configuration requirements for perceived quality of service are predetermined. The parameter configuration information used for measurement meets the minimum configuration requirement of the perceived service quality, and can characterize that the parameter configuration information used for the perceived measurement corresponding to the candidate perceived node and/or the candidate backscattering device meets the minimum configuration requirement of the perceived service quality.

In addition, the first device may also determine the switch target in conjunction with a change in a state of at least one of the sensing target, the sensing node, and the backscatter device.

under the condition that the state of a sensing node and/or a backscattering device changes, the first device acquires a handover measurement report;

and the first equipment determines whether to initiate the switching of the sensing mode according to the switching measurement report.

Here, the state of the sensing node changes, including changes in position, speed, orientation, electric quantity, etc.; the state of the backscatter device changes, including position, speed, orientation, power, available bandwidth, etc. In addition, the first device may further obtain a handover measurement report when a preset event occurs, where the preset event includes at least one of the following:

the state (such as position, speed, orientation, etc.) of the perceived target changes;

the sensing area environment changes (such as blocking occurs);

the measured value of the sensing measurement quantity of the sensing node reaches a preset switching threshold value (for example, at least one of the sensing signal receiving power, the sensing SNR, the sensing SINR, the distance/speed/angle measured value and the like meets the preset switching threshold value);

The communication measurement quantity obtained by the sensing node reaches a preset threshold;

the available sensing resources of the sensing node change (e.g., other high priority sensing/communication/sense of general integrated services are bursty, and whether to initiate a sensing handover procedure needs to be evaluated based on the remaining available sensing resources).

In this embodiment, the handover measurement report may be generated by a source aware node receiving the first signal. Thus, if the first device is a source sensing node and receives the first signal, the first device autonomously generates a handover measurement report; if the first device is a source sensing node and does not receive the first signal, the first device receives a handover measurement report generated and sent by the source sensing node receiving the first signal, or receives a handover measurement report forwarded by a non-source sensing node (such as a sensing function network element); if the first device is a non-source aware node (e.g., a aware function network element), the first device receives a handover measurement report generated and sent by a source aware node that receives the first signal, or receives a handover measurement report forwarded via a source aware node that does not receive the first signal.

Optionally, the source sensing node receiving the first signal may autonomously perform handover measurement to generate a handover measurement report; the handover measurement may also be performed in response to a handover measurement request sent by a source-aware node that does not receive the first signal or by a non-source-aware node (e.g., a network element of a sensing function) to generate a handover measurement report.

Wherein the handover measurement is performed based on the handover measurement configuration information. Optionally, the handover measurement configuration information is sent by a source-aware node that does not receive the first signal, or by a non-source-aware node (e.g. a aware-function network element). Optionally, the handover measurement configuration information is included in a handover measurement request.

Optionally, the handover measurement configuration information includes at least one of:

1) The measurement object indicates one or more first signals of the source node and/or the candidate node to be measured, and the sensing measurement quantity and sensing parameter configuration information related to the first signals;

2) Switching measurement report configuration, including reporting principle (for example, may be periodic reporting or event triggering principle), and measurement report format (for example, reporting cell maximum number and beam number, etc.);

3) Measuring event and related parameters, including measurement event definition, event related parameters, switching judgment conditions and the like;

4) Measurement IDs, i.e. measurement identities, each corresponding to a measurement object and a handover measurement report configuration.

Optionally, the handover measurement report comprises at least a measurement value of the perceived measurement quantity required for the handover measurement.

Alternatively, the perceived measurement quantity required for the handover measurement may include the current perceived traffic perceived measurement quantity.

Optionally, in this embodiment, the first parameter configuration information includes at least one of:

relevant configuration information of the backscatter device;

related configuration information of the first signal.

Wherein the relevant configuration information of the backscatter device includes at least one of:

1) The backscatter device ID and its associated information related to the perceived signal configuration, where the backscatter device ID is not limited to the EPC of the RFID, but may be the ID of a new device;

2) The working parameters of the back scattering equipment, such as working bandwidth, working frequency, channel number and subcarrier frequency corresponding to each channel;

3) Antenna configuration information for a backscatter device, comprising at least one of: the backscattering device antenna array element ID or backscattering device antenna port ID for receiving and transmitting the sense signal, the backscattering device panel (panel) ID for receiving and transmitting the sense signal, the position information (which may be represented by cartesian coordinates (x, y, z) or spherical coordinates (ρ, Φ, θ)) of the backscattering device antenna array element for receiving and transmitting the sense signal with respect to a local reference point on the antenna array, and the position information (which may be represented by cartesian coordinates (x, y, z) or spherical coordinates (ρ, Φ, θ)) of the backscattering device antenna array element for transmitting the sense signal with respect to a uniform reference point (e.g., panel center point) within these selected panel, the bit map information (e.g., the bit map 1 for receiving the sense signal may be represented by cartesian coordinates (x, y, z) or spherical coordinates (ρ, Φ, θ)), the bit map information (which may be represented by the bit map 1 for receiving the sense signal with respect to a local reference point on the antenna array) within these selected panel elements, and the sensor array may be represented by the backscattering device (e.g., the sensor array) may be represented by the map information (map) and the backscattering map information (which may be represented by the backscattering map 1 or may be represented by the backscattering map information (map information);

4) Position information (which may be expressed in cartesian coordinates (x, y, z) or spherical coordinates (ρ, Φ, θ)) of a local reference point of the backscatter device antenna array relative to at least one sensing node (base station or UE);

5) The modulation mode indication information applicable to the back scattering equipment indicates that the modulation mode adopted by the back scattering equipment comprises: amplitude modulation, phase modulation, frequency modulation, and combinations of any of the above at least 2 modes, such as amplitude-phase modulation, etc.;

6) Amplitude modulation configuration information of the back scattering equipment, namely amplitude configuration information for adjusting the reflected signal by the back scattering equipment, comprises an amplitude range of continuous amplitude modulation or a discrete state corresponding to discrete amplitude modulation;

7) The phase modulation configuration information of the back scattering device, namely the phase configuration information for adjusting the reflected signal by the back scattering device, comprises a phase range of continuous phase modulation or a discrete state corresponding to discrete phase modulation;

8) The frequency modulation configuration information of the back scattering equipment, namely the frequency configuration information for adjusting the reflected signal by the back scattering equipment, comprises a frequency range of continuous frequency modulation or a discrete state corresponding to discrete frequency modulation;

9) The type of backscatter device encryption algorithm, such as CRC16 or CRC 24;

10 The type of backscatter device channel coded FEC and the corresponding code rate.

Wherein the associated configuration information of the first signal comprises at least one of:

1) Sensing initial phases of signals, including initial phases of signals on each channel (applicable to tags based on phase modulation);

2) The signal modulation modes of the communication part of the backscattering device in the sensing signal comprise DSB-ASK, SSB-ASK, PR-ASK (Phase-reverse ASK), FSK, BPSK, QPSK, QAM mode and the like

3) The data encoding mode and frame format of the communication part of the backscatter device are involved in the perceived signal. For example, the coding mode to be determined may be a currently adopted and future possible backscatter communication digital code such as binary code, manchester code, FM0 code, miller code (delay modulation code), NRZ non-return-to-zero code, BNRZ bipolar non-return-to-zero code, NRZ-I code, pulse width code and the like; the frame format to be determined includes a preamble or a determination of a frame-sync, etc.

In addition, the first parameter configuration information may further include at least one of:

1) Waveform types such as OFDM, SC-FDMA, OTFS, frequency modulated continuous wave FMCW, pulse signals, etc.;

2) Subcarrier spacing: for example, the subcarriers of an OFDM system are spaced 30KHz apart;

3) Guard interval: a time interval from a signal end transmission time to a time when a latest echo signal of the signal is received; the parameter is proportional to the maximum perceived distance; for example, it can be achieved by 2d _max Calculated by/c, d _max Is the maximum perceived distance (belonging to the perceived need), e.g. d for a perceived signal that is spontaneously self-received _max Representing the maximum distance from the sensing signal receiving point to the signal transmitting point; in some cases, the OFDM signal cyclic prefix CP may function as a minimum guard interval;

4) Bandwidth: this parameter is inversely proportional to the distance resolution, which can be obtained by c/(2Δd), where Δd is the distance resolution (belonging to the perception requirement); c is the speed of light;

5) Burst duration: the parameter is inversely proportional to the rate resolution (belonging to the sensing requirement), the parameter is the time span of the sensing signal, and the parameter is mainly used for calculating Doppler frequency offset; the parameter can be calculated by c/(2 f) _c Deltav) is calculated; where Δv is the velocity resolution; f (f) _c Is the carrier frequency of the sense signal;

6) Time domain interval: the parameter can be calculated by c/(2 f) _c v _range ) Calculating to obtain; wherein v is _range Is the maximum rate minus the minimum rate (belonging to perceived demand); the parameter is the time interval between two adjacent perceptual signals;

7) The transmit signal power takes a value every 2dBm, for example, from-20 dBm to 23 dBm;

8) Signal formats, such as SRS, DMRS, PRS, etc., or other predefined signals, and related sequence formats, etc.;

9) A signal direction; such as direction of the sense signal or beam information;

10 Time resources such as slot index where the sense signal is located or symbol index of the slot; the time resource is divided into two types, one is a disposable time resource, for example, one symbol transmits one omni-directional sensing signal; a non-disposable time resource, such as multiple sets of periodic time resources or discontinuous time resources (which may include a start time and an end time), each set of periodic time resources transmitting a perception signal in the same direction, the beam directions on the periodic time resources of different sets being different;

11 Frequency resources including a center frequency Point of a sensing signal, bandwidth, RB or subcarrier, point a, a start bandwidth position, etc.;

12 QCL relationships, e.g., the sense signal includes a plurality of resources, each resource associated with an SSB QCL, the QCL including Type a, B, C or D;

13 -sensing node (base station or UE) antenna configuration information, comprising at least one of:

An antenna array element ID or an antenna port ID for transmitting and/or receiving a sensing signal;

panel ID+array element ID for transmitting and/or receiving a sensing signal;

the position information of the antenna elements for transmitting and/or receiving the sensing signal relative to a certain local reference point on the antenna array (which may be expressed in cartesian coordinates (x, y, z) or spherical coordinates (ρ, Φ, θ);

the position information of the panel for transmitting and/or receiving the sensing signal relative to a certain local reference point on the antenna array (which may be expressed in cartesian coordinates (x, y, z) or spherical coordinates (ρ, Φ, θ)), and the position information of the antenna array elements within the selected panel for transmitting the sensing signal relative to a certain uniform reference point of the panel (e.g. a panel center point) (which may be expressed in cartesian coordinates (x, y, z) or spherical coordinates (ρ, Φ, θ);

bitmap information of antenna array elements. For example: the bitmap indicates that an element is selected for transmitting and/or receiving a sense signal using a "1" and that an element is not selected using a "0" (or vice versa);

bitmap information of array panel, such as: the bitmap indicates that a panel is selected for transmitting and/or receiving a sense signal using a "1" and that an element is not selected using a "0" (or vice versa); and bit information of array elements in the selected panel;

14 Threshold information, i.e. a threshold value for deciding for at least one of the source node, the non-source node (e.g. the sensing function network element), the candidate node whether the obtained sensing measurement value meets the first condition. The threshold value may be different for different candidate nodes and/or candidate backscatter devices; for any one candidate node and/or candidate backscatter device, the perceived measurement quantity and its corresponding threshold value may be greater than 1; the first condition is: the corresponding candidate node/candidate backscatter device that obtained the perception measurement may be the target node/target backscatter device.

Of course, in this embodiment, the contents of the second parameter configuration information and the third parameter configuration information are the same as those of the first parameter configuration information, which is not described herein.

Optionally, in this embodiment, the method further includes:

before the perception measurement corresponding to the target perception mode occurs, the first device ends the self-executed perception measurement and releases the perception resource; or,

and under the condition that the sensing measurement corresponding to the target sensing mode occurs and the number of times of measurement is larger than a seventh threshold value or the measurement time is larger than an eighth threshold value, the first equipment ends the self-executed sensing measurement and releases the sensing resources.

Here, the first device is a source aware node. That is, the network performs a handover operation, and particularly, 2 methods of hard handover and soft handover may be adopted.

For hard switching, the source sensing node ends the sensing measurement executed by itself and releases the sensing resources, and at this time, if the back scattering equipment needs to be switched, the source back scattering equipment ends the sensing measurement participated by itself and releases the sensing resources. At the same time or after this, the target sensing node performs a sensing measurement corresponding to the target sensing mode, while the target backscatter device participates in the sensing measurement corresponding to the target sensing mode.

If soft switching is adopted, the target sensing node executes sensing measurement corresponding to the target sensing mode, and if the back scattering equipment needs to be switched, the target back scattering equipment participates in the sensing measurement corresponding to the target sensing mode. After the measurement times are larger than the seventh threshold or the measurement time is larger than the eighth threshold, the source sensing node ends the sensing measurement executed by itself and releases the sensing resources, and the source backscattering device ends the sensing measurement participated by itself and releases the sensing resources. Here, the seventh threshold value, the eighth threshold value are predefined or configured.

Optionally, in this embodiment, at least one of the source-aware node and the source backscatter device ends the sensing measurement and releases the sensing resource after receiving a sensing end command sent by at least one of the target-aware node and the first device of the non-source-aware node.

Optionally, in this embodiment, after determining the first switching target from the second device and/or determining the second switching target from the third device according to the indication information and the target awareness mode, the method further includes:

the first device sends at least one of the following information to the first and/or second handover targets:

at least part of the historical perceptual measurement information;

sensing target priori information;

sensing region prior information.

Optionally, at least one of the source-aware node, the source backscatter device, the first device of the non-source-aware node sends the above information to the target-aware node and/or the target backscatter device.

Alternatively, the candidate backscatter devices may be deployed on the perceived target or at any location in the perceived environment.

Alternatively, the candidate aware node may comprise a source aware node. The candidate backscatter devices may include source backscatter devices.

The application of the embodiment of the present invention is described below in conjunction with specific scenarios:

scene one: the first perceived mode is switched to the second perceived mode and the backscatter device is not switched. Before switching, a source sensing node A sends a first signal, and a source sensing node B receives the first signal; after the switching, the target sensing node A spontaneously receives the first signal. In the scene, the backscatter device is a tag; the core network device such as the network element of the sensing function determines the sensing node after switching and determines the sensing mode of the sensing node after switching. At least one of the source sensing node A, the source sensing node B and the sensing function network element can be first equipment, the candidate sensing node A is second equipment, and the target sensing node A is a first switching target.

Step 1: the network performs handover measurements.

The source sensing node A sends a switching measurement request to the source sensing node B, and the source sensing node B performs switching measurement after receiving the switching measurement request and feeds back a switching measurement report to the source sensing node A;

or,

the sensing function network element sends a switching measurement request to the source sensing node B, and the source sensing node B performs switching measurement after receiving the switching measurement request and feeds back a switching measurement report to the sensing function network element; optionally, the source-aware node B or the aware-capable network element sends a handover measurement report to the source-aware node a.

Before the source sensing node B performs handover measurement, the sensing function network element or the source sensing node a transmits handover measurement configuration information necessary for handover measurement to the source sensing node B. Alternatively, the handover measurement configuration information is included in a handover measurement request.

Step 2: the source-aware node a decides whether to initiate a handover or not based on the handover measurement report.

Optionally, the source sensing node a reports a handover measurement report to the sensing function network element, and the sensing function network element decides whether to initiate a handover request. Or the sensing function network element decides whether to initiate a handover request according to the handover measurement report received from the source sensing node B.

If the handover is not initiated, the subsequent processing may be to maintain or end the first signal sent by the source-aware node a, and the source-aware node B receives a first-aware-mode sensing measurement of the first signal.

If the switching is initiated and the tag is not switched, the following flow is executed:

the source sensing node A or the sensing function network element sends first request information to at least one candidate sensing node A, wherein the first request information is to request a first request information receiver to serve as the candidate sensing node (the sensing node after switching), sends a first signal and receives the first signal reflected/scattered by the tag.

The candidate sensing node a may include a source sensing node a and a source sensing node B (if the source sensing node a is the candidate sensing node a, the source sensing node a does not need to send the first request information to itself, or the sensing function network element sends the first request information to the source sensing node a).

Optionally, the candidate sensing node a is determined before sending the first request information, and the determination manner is described above and is not described herein.

Step 3: the candidate node decides whether to agree to the handover.

1. And (3) agreeing, sequentially executing the following steps:

3-1) the candidate sensing node a performs a sensing measurement corresponding to the second sensing means based on at least one item of the first parameter configuration information. Here, the first parameter configuration information includes a sensing parameter configuration related to transmitting the first signal, and a sensing parameter configuration related to receiving the first signal.

3-2) after at least one sensing measurement is performed, the candidate sensing node a sends indication information to the source sensing node a or the sensing function network element. The indication information comprises at least one of the following: sensing measurement result information; ID information of the candidate perception node A; second parameter configuration information; and communicating measurement result information.

3-3) the source sensing node A or the sensing function network element waits for the indication information of the candidate sensing node A within the preset time, and once the indication information sent by one or more candidate sensing nodes A is received and meets the target switching condition, the one or more candidate sensing nodes A are immediately selected as the target sensing node A, and sensing measurement corresponding to the second sensing mode is executed after switching.

The sensing measurement flow of the candidate sensing node a is as follows:

(1) The candidate sensing node A sends a first signal, and at least part of the first signal is reflected by at least 1 tag and is received by the candidate sensing node A;

(2) The candidate sensing node A obtains sensing measurement result information, such as sensing measurement values and/or sensing performance evaluation index measurement values, based on the received first signals reflected by the tags.

2. And if not agreeing, optionally, the candidate perception node A sends first rejection information to the first request information sender, wherein the first rejection information indicates a first rejection information receiver, and the first rejection information sender does not perceive.

If all candidate sensing nodes a do not agree to switch, the subsequent processing may be one of the following: the source sensing node A or the sensing function network element re-determines the candidate sensing node A; maintaining the current perception; ending the current perception.

Step 4: after the source sensing node A or the sensing function network element determines the target sensing node A, the source sensing node A or the sensing function network element sends first switching confirmation information to the target sensing node A. The first handover confirmation information is used for informing the first handover confirmation information receiver that the second handover confirmation information receiver executes the sensing measurement corresponding to the second sensing mode.

Optionally, the source sensing node a or the sensing function network element sends the first cancellation handover information to other candidate sensing nodes a except the target sensing node a. The first cancellation switching information is used for notifying other candidate nodes to cancel executing the sensing measurement and releasing reserved sensing resources. And after receiving the first handover elimination information, the other candidate nodes cancel executing the sensing measurement and release the reserved sensing resources.

Step 5: the handover is accomplished using either hard or soft handover.

If hard switching is adopted, the source sensing node A and the source sensing node B finish sensing measurement corresponding to the first sensing mode, and sensing resources are released; at the same time or after that, the target sensing node a performs a sensing measurement corresponding to the second sensing mode;

if soft handoff is adopted, the target sensing node A performs sensing measurement corresponding to the second sensing mode, and after the obtained sensing measurement value/sensing result number reaches the preset number, or the sensing measurement corresponding to the second sensing mode is performed for a preset time, the source sensing node A and the source sensing node B end the sensing measurement corresponding to the first sensing mode and release sensing resources.

Optionally, after receiving a sensing end command sent by the target sensing node a or the sensing function network element, the source sensing node a and/or the source sensing node B ends sensing measurement corresponding to the first sensing mode, and releases sensing resources.

Step 6: optionally, at least one of the source sensing node a, the source sensing node B, the sensing function network element, and the tag transmits at least one of at least part of historical sensing measurement result information (a historical sensing measurement value and/or a historical sensing result), sensing target prior information, and sensing region prior information to the target sensing node a.

Scene II: the first sensing mode is switched to the second sensing mode and the backscatter device is switched. Before switching, a source sensing node A sends a first signal, and a source sensing node B receives the first signal; after the switching, the target sensing node spontaneously receives the first information. In the scene, the backscatter device is a tag; the core network device such as the network element of the sensing function determines the sensing node after switching and determines the sensing mode of the sensing node after switching. At least one of the source sensing node a, the source sensing node B and the sensing function network element may be a first device, the candidate sensing node a is a second device, the target sensing node a is a first switching target, the candidate tag is a third device, and the target tag is a second switching target.

Step 1: the network performs handover measurements as in scenario one.

If the handover is not initiated, the subsequent processing may be to maintain or end the current sensing manner in which the source sensing node a transmits the first signal, and the source sensing node B receives the sensing measurement of the first sensing manner of the first signal.

If the switching is initiated and the tag is also switched at the same time, the following flow is executed:

the source sensing node A or the sensing function network element sends first request information to at least one candidate sensing node A, and the source sensing node A or the sensing function network element sends second request information to at least one candidate tag. The first request information is the same as that of the first embodiment, and the second request information is the first signal sent by the reflection/scattering candidate sensing node a, where the second request information receiver is requested to be the candidate tag (the sensing tag after switching).

The source sensing node a or the sensing function network element sends the second request information to at least one candidate tag, which can be realized through a tag checking process: the source sensing node A can Select at least part of tags in the first signal coverage range for checking through a Select command; then, the source node a sends second request information to at least 1 candidate tag in the at least part of the tags through the RN16 and the command field of the ACK message.

Optionally, before step 2, the source-aware node a acquires device information of the tag in the first signal coverage area, where the device information is used to determine candidate tags. The device information acquisition can be realized through a tag checking process: the tag feeds back the device information of the tag to the source sensing node A by checking the RN16 in the ACK sent by the source sensing node A.

The candidate sensing node a may include a source sensing node a and a source sensing node B (if the source sensing node a is the candidate sensing node a, the source sensing node a does not need to send the first request information to itself, or the sensing function network element sends the first request information to the source sensing node a), and the candidate tag may include a source tag.

Step 3: the candidate node and the candidate tag decide whether to agree to the handover.

1. And (3) agreeing, sequentially executing the following steps:

3-1) the candidate sensing node a performs sensing measurements corresponding to the second sensing mode based on at least one item of first parameter configuration information, where the first parameter configuration information includes sensing parameter configurations related to the sending of the first signal, and receiving the sensing parameter configurations related to the first signal; and the candidate tag participates in a perception measurement corresponding to the second perception mode based on at least one item of first parameter configuration information, wherein the first parameter configuration information comprises a perception parameter configuration related to reflecting the first signal.

3-2) after at least one sensing measurement is performed, the candidate sensing node a sends indication information to the source sensing node a or the sensing function network element.

Optionally, the content of the indication information may include at least one of the following in addition to the content of the indication information including the scene one: ID information of the candidate tag; third parameter configuration information.

If the first request information is a soft handover request and the candidate node agrees with and supports soft handover, optionally, the second parameter configuration information includes soft handover parameter configuration information. If the second request information includes a soft handover request and the candidate tag agrees with and supports soft handover, optionally, the third parameter configuration information includes soft handover parameter configuration information.

3-3) the source sensing node A or the sensing function network element waits for the indication information of the candidate sensing node A within a preset time, once the indication information sent by one or more candidate sensing nodes A is received and meets a target switching condition, the one or more candidate sensing nodes A are immediately selected as target sensing nodes A, sensing measurement corresponding to a second sensing mode is executed after switching, one or more candidate tags corresponding to the indication information are selected as target tags, and sensing measurement corresponding to the second sensing mode is participated after switching.

The sensing measurement flow of the candidate sensing node a is as follows:

(1) The candidate sensing node A sends a first signal, and at least part of the first signal is reflected by at least 1 candidate tag and is received by the candidate sensing node A;

2. And if not agreeing, optionally, the candidate perception node A sends first rejection information to the first request information sender, wherein the first rejection information indicates a first rejection information receiver, and the first rejection information sender does not perceive. Optionally, the candidate tag sends second rejection information to the second request information sender, where the second rejection information indicates the second rejection information receiver, and the second rejection information sender does not participate in sensing.

If all candidate sensing nodes a and/or candidate tags do not agree to switch, the subsequent processing may be one of the following: i. the source sensing node A or the sensing function network element re-determines candidate sensing nodes A and/or candidate tags; maintaining the current perception; ending the current perception.

Optionally, the source sensing node a or the sensing function network element sends the first cancellation handover information to other candidate sensing nodes a except the target sensing node. And after receiving the first cancel switching information, the other candidate sensing nodes cancel executing sensing measurement and release reserved sensing resources.

After the source sensing node A or the sensing function network element determines the target tag, second switching confirmation information is sent to the target tag. The second switching confirmation information is used for informing the second switching confirmation information receiver that the second switching confirmation information receiver participates in the sensing measurement corresponding to the second sensing mode.

Optionally, the source aware node a or the aware function network element sends second cancel handover information to other candidate tags except the target tag. And after receiving the second cancel switching information, the other candidate tags cancel participation in the perception measurement, and release the reserved perception resources.

The source sensing node a or the sensing function network element sends second switching confirmation information to the target tag, and/or the node source sensing node a or the sensing function network element sends second switching cancellation information to other candidate tags, which can be realized through a tag checking process: the source sensing node A can Select at least part of tags in the first signal coverage range for checking through a Select command; then, the source aware node a sends second handover confirmation information to at least 1 target tag of the at least part of tags and/or sends second handover cancellation information to at least 1 candidate tag of the at least part of tags through RN16 and command field of the ACK message.

Step 5: the handover is accomplished using either hard or soft handover.

If hard switching is adopted, the source sensing node A and the source sensing node B end sensing measurement corresponding to the first sensing mode and release sensing resources, and the source tag ends participating in sensing measurement corresponding to the first sensing mode and releases sensing resources; at the same time or after that, the target sensing node A performs sensing measurement corresponding to the second sensing mode, and the target tag participates in the sensing measurement corresponding to the second sensing mode;

if soft handoff is adopted, the target sensing node A performs sensing measurement corresponding to the second sensing mode, and the target tag participates in sensing measurement corresponding to the second sensing mode, after the number of times of obtaining sensing measurement value/sensing result reaches a preset number of times or the sensing measurement corresponding to the second sensing mode reaches a preset time, the source sensing node A and the source sensing node B end the sensing measurement corresponding to the first sensing mode and release sensing resources, and the source tag ends participating in the sensing measurement corresponding to the first sensing mode and release sensing resources.

Optionally, after receiving a sensing end command sent by at least one of the target sensing node a, the target tag, and the sensing function network element, at least one of the source sensing node a, the source sensing node B, and the source tag ends sensing measurement corresponding to the first sensing mode, and releases sensing resources.

Step 6: optionally, at least one of the source sensing node a, the source sensing node B, the sensing function network element, and the source tag transmits at least one of at least part of historical sensing measurement result information (a historical sensing measurement value and/or a historical sensing result), sensing target prior information, and sensing region prior information to the target sensing node a and/or the target tag.

Scene III: the second sensing mode is switched to the first sensing mode and the backscatter device is switched. Before switching, the source sensing node A spontaneously receives a first signal; after the handover, the target sensing node a sends a first signal, and the target sensing node B receives the first signal. In the scene, the backscatter device is a tag; the core network device such as the network element of the sensing function determines the sensing node after switching and determines the sensing mode of the sensing node after switching. At least one of the source sensing node A and the sensing function network element can be first equipment, the candidate sensing node A and the candidate sensing node B are second equipment, and the target sensing node A and the target sensing node B are first switching targets.

Step 1: the network performs handover measurements.

The sensing function network element sends a switching measurement request to a source sensing node A (such as a base station or UE), the source sensing node A receives the switching measurement request and then performs switching measurement, and a switching measurement report is fed back to the sensing function network element;

Or,

and the source sensing node A actively performs switching measurement to acquire a switching measurement report. Optionally, the source aware node a sends a handover measurement report to the aware-feature network element.

Optionally, before the source-aware node a performs the handover measurement, the aware-capable network element sends handover measurement configuration information necessary for the handover measurement to the source-aware node a. Alternatively, the handover measurement configuration information is included in a handover measurement request.

Optionally, the source sensing node a reports a handover measurement report to the sensing function network element, and the sensing function network element decides whether to initiate a handover request.

If no handover is initiated, the subsequent processing may be to maintain or end the sensing measurement of the second sensing manner of the current source sensing node a autonomously self-receiving the first signal.

the method comprises the steps that a source sensing node A or a sensing function network element sends first request information to at least one candidate sensing node A, wherein the first request information is a request for a first request information receiver to serve as a candidate sensing node (a sensing node after switching), and a first signal is sent;

The source sensing node A or the sensing function network element sends first request information to at least one candidate sensing node B, wherein the first request information is to request a first request information receiver as the candidate sensing node (the sensing node after switching), and receives a first signal reflected/scattered by a tag.

The candidate sensing node a may include a source sensing node a (if the source sensing node a is the candidate sensing node a, the source sensing node a does not need to send the first request information to itself, or the sensing function network element sends the first request information to the source sensing node a), and the candidate sensing node B may include the source sensing node a.

Optionally, the candidate sensing nodes (a and B) are determined before sending the first request information, and the determination manner is described above and is not described herein.

Step 3: the candidate aware nodes (a and B) decide whether to agree to the handover.

1. And (3) agreeing, sequentially executing the following steps:

3-1) the candidate sensing node a performs a sensing measurement corresponding to the first sensing means based on at least one item of first parameter configuration information, where the first parameter configuration information comprises sensing parameter configurations related to transmitting the first signal; the candidate sensing node B performs a sensing measurement corresponding to the first sensing mode based on at least one item of first parameter configuration information, where the first parameter configuration information includes sensing parameter configurations associated with receiving the first signal.

3-2) after at least one sensing measurement is performed, the candidate sensing node B sends indication information to the source sensing node a or the sensing function network element.

Optionally, the indication information includes at least one of: sensing measurement result information; ID information of the candidate perception node A; ID information of candidate sensing node B; second parameter configuration information; and communicating measurement result information.

3-3) the source sensing node A or the sensing function network element waits for the indication information of the candidate sensing node B in the preset time, and once the indication information sent by one or more candidate sensing node B meets the target switching condition is received, the one or more candidate sensing node B is immediately selected as the target sensing node B, and sensing measurement corresponding to the first sensing mode is executed after switching. And selecting one or more candidate sensing nodes A corresponding to the indication information as target sensing nodes A, and executing sensing measurement corresponding to the first sensing mode after switching.

The sensing measurement flow of the candidate sensing node is as follows:

(1) At least 1 candidate sensing node A transmits a first signal, and at least part of the first signal is reflected by at least 1 tag and received by at least 1 candidate sensing node B;

(2) The candidate sensing node B senses measurement result information, such as a sensing measurement value and/or a sensing performance evaluation index measurement value, based on the received first signal reflected by the tag.

2. If not, optionally, the candidate sensing node a sends the first rejection information to the first request information sender, and/or the candidate sensing node B sends the first rejection information to the first request information sender.

If all candidate sensing nodes a and/or candidate sensing nodes B do not agree to switch, the subsequent processing may be one of the following: i. the source perception node A or the perception function network element re-determines the candidate perception node A and/or the candidate perception node B; maintaining the current perception; ending the current perception.

Step 4: after the source sensing node A or the sensing function network element determines the target sensing node A and/or the target sensing node B, the source sensing node A or the sensing function network element sends first switching confirmation information to the target sensing node A and/or the target sensing node B.

Optionally, the source sensing node a or the sensing function network element sends the first cancel handover information to other candidate sensing nodes a and/or candidate sensing nodes B except the target sensing node. And the other candidate sensing nodes release reserved sensing resources after receiving the first handover elimination information.

Step 5: the handover is accomplished using either hard or soft handover.

If hard switching is adopted, the source perception node A ends perception measurement corresponding to the second perception mode and releases perception resources; simultaneously or afterwards, the target sensing node A and the target sensing node B perform sensing measurement corresponding to the first sensing mode;

if soft handoff is adopted, the target sensing node A and the target sensing node B perform sensing measurement corresponding to the first sensing mode, and after the obtained sensing measurement value/sensing result number reaches the preset number or the sensing measurement corresponding to the first sensing mode reaches the preset time, the source sensing node A finishes the sensing measurement corresponding to the second sensing mode and releases sensing resources.

Optionally, after receiving a sensing end command sent by at least one of the target sensing node B, the target sensing node a, and the sensing function network element, the source sensing node a ends sensing measurement corresponding to the second sensing mode, and releases sensing resources.

Step 6: optionally, at least one of the source sensing node a, the sensing function network element, and the tag sends at least one of at least part of historical sensing measurement result information (a historical sensing measurement value and/or a historical sensing result), sensing target prior information, and sensing region prior information to the target sensing node a and/or the target sensing node B.

Scene four: the second sensing mode is switched to the first sensing mode and the backscatter device is switched. Before switching, the source perception node A spontaneously receives first information; after the handover, the target sensing node a sends a first signal, and the target sensing node B receives the first signal. In the scene, the backscatter device is a tag; the core network device such as the network element of the sensing function determines the sensing node after switching and determines the sensing mode of the sensing node after switching. At least one of the source sensing node a and the sensing function network element may be a first device, the candidate sensing node a and the candidate sensing node B are second devices, the target sensing node a and the target sensing node B are first switching targets, the candidate tag is a third device, and the target tag is a second switching target.

Step 1: the network performs handover measurements as in scenario three.

the source aware node a or the aware function network element sends a first request message to at least one candidate aware node a, sends the first request message to at least one candidate aware node B, and also sends a second request message to at least one candidate tag.

The source sensing node a or the sensing function network element sends first request information to at least one candidate tag, which can be realized through a tag checking process: the source sensing node A can Select at least part of tags in the first signal coverage range for checking through a Select command; then, the source node a sends the first request information to at least 1 candidate tag of the at least part of the tags through the RN16 and the command field of the ACK message.

The candidate sensing node a may include a source sensing node a (if the source sensing node a is the candidate sensing node a, the source sensing node a does not need to send the first request information to itself, or the sensing function network element sends the third request information to the source sensing node a), and the candidate sensing node B may include the source sensing node a.

Step 3: candidate nodes (a and B) and candidate tags decide whether to agree to a handover.

1. And (3) agreeing, sequentially executing the following steps:

3-1) the candidate sensing node a performs a sensing measurement corresponding to the first sensing mode based on at least one item of first parameter configuration information, where the first parameter configuration information includes sensing parameter configurations related to transmitting the first signal; the candidate sensing node B executes sensing measurement corresponding to a first sensing mode based on at least one of fourth request information and fifth parameter configuration information, wherein the first parameter configuration information comprises sensing parameter configuration related to receiving a first signal; and the candidate tag participates in a perception measurement corresponding to the first perception mode based on at least one item of first parameter configuration information, wherein the first parameter configuration information comprises a perception parameter configuration related to reflecting the first signal.

Optionally, the indication information content may include ID information of the candidate tag in addition to the content including the indication information of the third scene; third parameter configuration information.

3-3) the source sensing node A or the sensing function network element waits for the indication information of the candidate sensing node B in the preset time, and once the indication information sent by one or more candidate sensing node B meets the target switching condition is received, the one or more candidate sensing node B is immediately selected as the target sensing node B, and sensing measurement corresponding to the first sensing mode is executed after switching. And selecting one or more candidate sensing nodes A corresponding to the indication information as target sensing nodes A, and executing first sensing after switching. And selecting one or more candidate tags corresponding to the indication information as target tags, and participating in the sensing measurement corresponding to the first sensing mode after switching.

The sensing measurement flow of the candidate sensing node is as follows:

(1) At least 1 candidate sensing node A transmits a first signal, and at least part of the first signal is reflected by at least 1 candidate tag and received by at least 1 candidate sensing node B;

(2) The candidate sensing node B obtains a sensing measurement value and/or a sensing performance evaluation index measurement value based on the received first signal reflected by the tag.

2. If not, optionally, the candidate sensing node a sends first rejection information to the first request information sender, and/or the candidate sensing node B sends first rejection information to the first request information sender, and/or the candidate tag sends second rejection information to the second request information sender.

If all the candidate sensing nodes a and/or candidate sensing nodes B and/or candidate tags do not agree with the handover, the subsequent processing may be one of the following: i. the source perception node A or the perception function network element re-determines candidate perception nodes A and/or candidate perception nodes B and/or candidate tags; maintaining the current perception; ending the current perception.

Optionally, the source sensing node a or the sensing function network element sends the first cancel handover information to other candidate sensing nodes a and/or candidate sensing nodes B except the target sensing node. And the other candidate nodes release the reserved sensing resources after receiving the first handover elimination information.

After the source sensing node A or the sensing function network element determines the target tag, second switching confirmation information is sent to the target tag.

Optionally, the source aware node a or the aware function network element sends second cancel handover information to other candidate tags except the target tag.

The source sensing node a or the sensing function network element sends second switching confirmation information to the target tag, and/or the node source sensing node a or the sensing function network element sends second switching cancellation information to other candidate tags, which can be realized through a tag checking process: the source sensing node A can Select at least part of tags in the first signal coverage range for checking through a Select command; then, the source aware node a sends second handover confirmation information to at least 1 target tag of the at least part of tags and/or sends second handover cancellation information to at least 1 candidate tag of the at least 1 target tag of the at least part of tags through RN16 and command field of the ACK message.

Step 5: the handover is accomplished using either hard or soft handover.

If hard switching is adopted, the source sensing node A finishes sensing measurement corresponding to the second sensing mode and releases sensing resources, and the source tag finishes participating in sensing measurement corresponding to the second sensing mode and releases the sensing resources; simultaneously or afterwards, the target sensing node A and the target sensing node B perform sensing measurement corresponding to the first sensing mode, and the target tag participates in the sensing measurement corresponding to the first sensing mode;

if soft handoff is adopted, the target sensing node A and the target sensing node B perform sensing measurement corresponding to the first sensing mode, and the target tag participates in the sensing measurement corresponding to the first sensing mode, after the number of times of obtaining the sensing measurement value/sensing result reaches a preset number of times or the sensing measurement corresponding to the first sensing mode reaches a preset time, the source sensing node A finishes the sensing measurement corresponding to the second sensing mode and releases sensing resources, and the source tag finishes participating in the sensing measurement corresponding to the second sensing mode and releases the sensing resources.

Optionally, after receiving a sensing end command sent by at least one of the target sensing node B, the target sensing node a, the target tag, and the sensing function network element, the source sensing node a and/or the source tag ends sensing measurement corresponding to the second sensing mode, and releases sensing resources.

Step 6: optionally, at least one of the source sensing node a, the sensing function network element and the source tag transmits at least one of at least part of historical sensing measurement result information (a historical sensing measurement value and/or a historical sensing result), sensing target prior information and sensing region prior information to at least one of the target sensing node a, the target sensing node B and the target tag.

In summary, the first device determines the target sensing node and/or the target backscattering device, so as to realize the switching of the target sensing mode, and solve the problem of reduced or even interrupted sensing service performance caused by the change of the sensing target state or the sensing environment.

As shown in fig. 7, a method for switching a sensing mode in an embodiment of the present application includes:

step 701, the second device sends indication information to the first device; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device; the second device is a candidate perception node.

Here, since the indication information is obtained by performing the sensing measurement based on the first parameter configuration information, and the indication information may be used to determine the handover target, the first device may determine the first handover target from the candidate sensing nodes and/or determine the second handover target from the candidate backscatter devices according to the indication information, that is, determine the handover target, so as to complete the handover of the target sensing mode.

Optionally, the second device that sends the indication information is a sensing node that receives the first signal.

Optionally, the method further comprises:

the second device receives a first switching command of the first device; the first switching command is used for notifying the second device to execute the sensing measurement corresponding to the target sensing mode.

At this time, the second device is the first switching target, i.e., the target sensing node among the first candidate sensing nodes.

Optionally, before the second device sends the indication information to the first device, the method further includes:

the second device receives first request information of the first device; the first request information is used for requesting the second device to serve as a candidate sensing node for executing sensing measurement corresponding to the target sensing mode; the first request information includes the first parameter configuration information suggested by the first device.

After agreeing to be the candidate sensing node according to the first request information, the second device executes one of the following according to the first parameter configuration information:

transmitting or receiving a first signal under the condition that the target sensing mode is a first sensing mode;

transmitting and receiving the first signal under the condition that the target sensing mode is a second sensing mode;

the first signal is used for sensing and measuring a sensing target, and at least part of the first signal is reflected by the back scattering equipment to reach a first signal receiving end.

The first equipment sends first request information to the candidate sensing node, and after the candidate sensing node receives the first request information, second equipment in the candidate sensing node obtains indication information and informs the first equipment; the remaining candidate sensing nodes of the candidate sensing nodes send first rejection information to the first device.

Optionally, the first parameter configuration information includes at least one of:

relevant configuration information of the backscatter device;

related configuration information of the first signal.

Optionally, the method further comprises:

the second device receives at least one of the following information sent by the first device:

At least part of the historical perceptual measurement information;

sensing target priori information;

sensing region prior information.

Optionally, the indication information further includes at least one of:

identification information of the second device;

identification information of the third device;

the second parameter configuration information comprises sensing parameter configuration used when the second equipment or the first switching target executes sensing measurement corresponding to a target sensing mode;

third parameter configuration information, which includes a sensing parameter configuration used when the third device or the second handover target participates in performing sensing measurement;

and communicating measurement result information.

It should be noted that, the method executed by the second device is implemented in cooperation with the method executed by the first device, and the implementation manner of the embodiment of the method executed by the first device is applicable to the method, which can achieve the same technical effects.

As shown in fig. 8, a method for switching a sensing mode in an embodiment of the present application includes:

step 801, a third device receives second request information of a first device; the second request information is used for requesting the third device to serve as candidate back scattering devices participating in perception measurement corresponding to the target perception mode; the second request information comprises first parameter configuration information suggested by the first device; the first parameter configuration information comprises a sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device.

Here, the first device sends second request information to the candidate backscatter device, the second request information including first parameter configuration information suggested by the first device, and the first parameter configuration information including a sensing parameter configuration used when the sensing node performs a sensing measurement corresponding to the target sensing manner through the backscatter device, the third device can be caused to participate in the sensing measurement corresponding to the target sensing manner, so that the second device obtains the indication information including sensing measurement result information.

Alternatively, the third device is a determined candidate backscatter device, and may be a candidate backscatter device agreeing to handover among the candidate backscatter devices.

Optionally, the target awareness mode includes one of the following:

Optionally, the method further comprises:

The third device receives a second switching command of the first device; the second switching command is used for notifying the third device to participate in the perception measurement corresponding to the target perception mode.

At this time, the third device determines a second switching target, i.e., a target backscatter device, for the first device.

relevant configuration information of the backscatter device;

related configuration information of the first signal.

Optionally, the method further comprises:

the third device receives at least one of the following information sent by the first device:

at least part of the historical perceptual measurement information;

sensing target priori information;

sensing region prior information.

It should be noted that, the method executed by the third device is implemented in cooperation with the method executed by the first device, and the implementation manner of the embodiment of the method executed by the first device is applicable to the method, which can achieve the same technical effects.

According to the sensing mode switching method provided by the embodiment of the application, the execution main body can be a sensing mode switching device. In the embodiment of the present application, a sensing mode switching device performs a sensing mode switching method as an example, and the sensing mode switching device provided in the embodiment of the present application is described.

As shown in fig. 9, a sensing mode switching device 900 according to an embodiment of the present application includes:

a first receiving module 910, configured to receive indication information of a second device; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device;

a first determining module 920, configured to determine a first handover target from the second device and/or determine a second handover target from a third device according to the indication information and the target awareness;

Optionally, the target awareness mode includes one of the following:

Optionally, the indication information further includes at least one of:

identification information of the second device;

identification information of the third device;

and communicating measurement result information.

Optionally, the apparatus further comprises:

a first switching command transmitting module configured to transmit a first switching command to a first switching target in a case where the first switching target is determined from the second device; the first switching command is used for notifying the first switching target to execute sensing measurement corresponding to the target sensing mode.

Optionally, the apparatus further comprises:

the first request information sending module is used for sending first request information to the second equipment; the first request information is used for requesting the second device to serve as a candidate sensing node for executing sensing measurement corresponding to the target sensing mode; the first request information includes the first parameter configuration information suggested by the first device.

Optionally, the apparatus further comprises:

and the second switching command sending module is used for sending a second switching command to the second switching target under the condition that the second switching target is determined from the third equipment, and the second switching command is used for informing the third equipment to participate in the perception measurement corresponding to the target perception mode.

Optionally, the apparatus further comprises:

the second request information sending module is used for sending second request information to the third equipment; the second request information is used for requesting the third device to serve as candidate back scattering devices participating in perception measurement corresponding to the target perception mode; the second request information includes the first parameter configuration information suggested by the first device.

Optionally, the apparatus further comprises:

the first acquisition module is used for acquiring equipment information of the backscatter equipment in the first signal range by the first equipment;

a second determining module, configured to determine the third device according to the device information;

wherein the device information includes at least one of:

the position of the backscatter device;

the antenna panel of the backscatter device faces;

A state of motion of the backscatter device;

sensing capability of the backscatter device;

a perceived resource of the backscatter device;

channel state of the backscatter device.

Optionally, the first determining module is further configured to:

and taking the second equipment corresponding to the indication information meeting the target switching condition as the first switching target and/or taking the third equipment corresponding to the indication information meeting the target switching condition as the second switching target based on the target switching condition and the target perception mode.

Optionally, the target handover condition includes at least one of:

Optionally, the apparatus further comprises:

the second acquisition module is used for acquiring a handover measurement report under the condition that the state of the sensing node and/or the backscattering equipment is changed;

and the third determining module is used for determining whether to initiate the switching of the sensing mode according to the switching measurement report.

Optionally, the second handover command sending module is further configured to:

and sending the second switching command through a back scattering equipment checking flow.

relevant configuration information of the backscatter device;

related configuration information of the first signal.

Optionally, the apparatus further comprises:

the first processing module is used for ending the self-executed perception measurement and releasing the perception resource before the perception measurement corresponding to the target perception mode occurs; or,

and when the sensing measurement corresponding to the target sensing mode occurs and the number of times of measurement is larger than a seventh threshold value or the measurement time is larger than an eighth threshold value, ending the sensing measurement executed by the sensing device and releasing the sensing resource.

Optionally, the apparatus further comprises:

the second sending module is used for sending at least one of the following information to the first switching target and/or the second switching target:

at least part of the historical perceptual measurement information;

sensing target priori information;

sensing region prior information.

The device can be applied to the first equipment, after receiving the indication information of the second equipment, the device can determine the first switching target from the candidate sensing nodes and/or determine the second switching target from the candidate back scattering equipment according to the indication information, namely, determine the switching target, because the indication information is obtained by sensing based on the first parameter configuration information and can be used for determining the switching target.

The device in the embodiment of the application may be a base station, a terminal, or a core network device. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, and embodiments of the present application are not particularly limited.

The device provided in the embodiment of the present application can implement each process implemented by the embodiment of the method of fig. 2, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

As shown in fig. 10, a sensing mode switching device 1000 according to an embodiment of the present application includes:

a first transmitting module 1010, configured to transmit indication information to a first device; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device; the second device is a candidate perception node.

Optionally, the apparatus further comprises:

a first switching command receiving module, configured to receive a first switching command of the first device; the first switching command is used for notifying the second device to execute the sensing measurement corresponding to the target sensing mode.

Optionally, the apparatus further comprises:

a first request information receiving module, configured to receive first request information of the first device; the first request information is used for requesting the second device to serve as a candidate sensing node for executing sensing measurement corresponding to the target sensing mode; the first request information includes the first parameter configuration information suggested by the first device.

The signal receiving and transmitting module is used for executing one of the following according to the first parameter configuration information after agreeing to serve as the candidate sensing node according to the first request information:

relevant configuration information of the backscatter device;

related configuration information of the first signal.

Optionally, the apparatus further comprises:

the third receiving module is used for receiving at least one of the following information sent by the first device:

at least part of the historical perceptual measurement information;

sensing target priori information;

sensing region prior information.

Optionally, the indication information further includes at least one of:

identification information of the second device;

identification information of the third device;

and communicating measurement result information.

The device is applied to the second equipment, and the indication information is obtained by performing sensing measurement based on the first parameter configuration information and can be used for determining a switching target, so that the first equipment can determine the first switching target from the candidate sensing nodes and/or determine the second switching target from the candidate backscattering equipment, namely determine the switching target according to the indication information, so as to complete switching of a target sensing mode.

The apparatus in the embodiments of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The device provided in this embodiment of the present application can implement each process implemented by the method embodiment of fig. 7, and achieve the same technical effects, so that repetition is avoided, and details are not repeated here.

As shown in fig. 11, a sensing mode switching device 1100 according to an embodiment of the present application includes:

a second receiving module 1110, configured to receive second request information of the first device; the second request information is used for requesting the third device to serve as candidate back scattering devices participating in perception measurement corresponding to the target perception mode; the second request information comprises first parameter configuration information suggested by the first device; the first parameter configuration information comprises a sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device.

Optionally, the target awareness mode includes one of the following:

Optionally, the apparatus further comprises:

a second switching command receiving module, configured to receive a second switching command of the first device; the second switching command is used for notifying the third device to participate in the perception measurement corresponding to the target perception mode.

relevant configuration information of the backscatter device;

related configuration information of the first signal.

Optionally, the apparatus further comprises:

a fourth receiving module, configured to receive at least one of the following information sent by the first device:

at least part of the historical perceptual measurement information;

sensing target priori information;

Sensing region prior information.

The device is applied to third equipment, the second request information is received from the first equipment and sent to the candidate back scattering equipment, the second request information comprises first parameter configuration information suggested by the first equipment, the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through the back scattering equipment, the third equipment can participate in the sensing measurement corresponding to the target sensing mode, and therefore the second equipment can obtain indication information to determine a switching target.

The apparatus in the embodiment of the present application is a backscatter device, and the embodiment of the present application is not specifically limited.

The device provided in this embodiment of the present application can implement each process implemented by the method embodiment of fig. 8, and achieve the same technical effects, so that repetition is avoided, and details are not repeated here.

Optionally, as shown in fig. 12, the embodiment of the present application further provides a communication device 1200, including a processor 1201 and a memory 1202, where the memory 1202 stores a program or an instruction that can be executed on the processor 1201, and the program or the instruction implements each step of the embodiment of the method for switching a sensing manner executed by the first device when executed by the processor 1201, or implements each step of the embodiment of the method for switching a sensing manner executed by the second device, and can achieve the same technical effect, so that repetition is avoided and no further description is given here.

The communication device 1200 is a base station, a terminal, or a core network device.

The embodiment of the application also provides a communication device, which comprises a processor and a communication interface, wherein,

or,

If the communication device is a terminal, the terminal embodiment corresponds to the first device or the second device side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 13 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1300 includes, but is not limited to: at least some of the components of the radio frequency unit 1301, the network module 1302, the audio output unit 1303, the input unit 1304, the sensor 1305, the display unit 1306, the user input unit 1307, the interface unit 1308, the memory 1309, the processor 1310, and the like.

Those skilled in the art will appreciate that the terminal 1300 may further include a power source (e.g., a battery) for supplying power to the various components, and the power source may be logically connected to the processor 1310 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system. The terminal structure shown in fig. 13 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown in the drawings, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1304 may include a graphics processing unit (Graphics Processing Unit, GPU) 13041 and a microphone 13042, with the graphics processor 13041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1307 includes at least one of a touch panel 13071 and other input devices 13072. The touch panel 13071 is also referred to as a touch screen. The touch panel 13071 can include two parts, a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 1301 may transmit the downlink data to the processor 1310 for processing; in addition, the radio frequency unit 1301 may send uplink data to the network side device. Typically, the radio unit 1301 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1309 may be used to store software programs or instructions and various data. The memory 1309 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1309 may include volatile memory or nonvolatile memory, or the memory 1309 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 1309 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 1310 may include one or more processing units; optionally, processor 1310 integrates an application processor that primarily handles operations related to the operating system, user interface, and applications, and a modem processor that primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1310.

When the terminal implements the first device-side method,

the radio frequency unit 1301 is configured to receive indication information of the second device; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device;

a processor 1310, configured to determine a first handover target from the second device and/or determine a second handover target from a third device according to the indication information and the target awareness mode; wherein the second device is a candidate perception node; the third device is a candidate backscatter device.

When the terminal implements the second device-side method,

the radio frequency unit 1301 is configured to send indication information to the first device; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device; the second device is a candidate perception node.

If the communication device is a network side device (such as a base station or a core network device), the network side device embodiment corresponds to the first device or the second device side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effect can be achieved.

Specifically, the embodiment of the present application further provides a network side device, as shown in fig. 14, where the network side device 1400 includes: an antenna 141, a radio frequency device 142, a baseband device 143, a processor 144, and a memory 145. The antenna 141 is connected to the radio frequency device 142. In the uplink direction, the radio frequency device 142 receives information via the antenna 141, and transmits the received information to the baseband device 143 for processing. In the downlink direction, the baseband device 143 processes information to be transmitted, and transmits the processed information to the radio frequency device 142, and the radio frequency device 142 processes the received information and transmits the processed information through the antenna 141.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 143, where the baseband apparatus 143 includes a baseband processor.

The baseband device 143 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 14, where one chip, for example, a baseband processor, is connected to the memory 145 through a bus interface, so as to call a program in the memory 145 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 146, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1400 of the embodiment of the present invention further includes: instructions or programs stored in the memory 145 and executable on the processor 144, the processor 144 invokes the instructions or programs in the memory 145 to perform the methods performed by the modules shown in fig. 9 or 10, and achieve the same technical effects, and are not repeated here.

Specifically, the embodiment of the present application further provides a network side device, as shown in fig. 15, where the network side device 1500 includes: a processor 1501, a network interface 1502 and a memory 1503. The network interface 1502 is, for example, a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1500 of the embodiment of the present invention further includes: instructions or programs stored in the memory 1503 and capable of being executed by the processor 1501, the processor 1501 calls the instructions or programs in the memory 1503 to execute the method executed by each module shown in fig. 9 or 10, and achieve the same technical effect, so that repetition is avoided and therefore, the description is omitted here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, where the program or the instruction when executed by a processor implements each process of the embodiment of the sensing mode switching method performed by the first device, or implements each process of the embodiment of the sensing mode switching method performed by the second device, or implements each process of the embodiment of the sensing mode switching method performed by the third device, and the same technical effects can be achieved, so that repetition is avoided and no redundant description is provided herein.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, where the processor is configured to execute a program or an instruction, implement each process of the foregoing embodiment of the sensing mode switching method performed by the first device, implement each process of the foregoing embodiment of the sensing mode switching method performed by the second device, or implement each process of the foregoing embodiment of the sensing mode switching method performed by the third device, and achieve the same technical effect, so that repetition is avoided and no further description is given here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the foregoing embodiment of the sensing mode switching method performed by the first device, or implement each process of the foregoing embodiment of the sensing mode switching method performed by the second device, or implement each process of the foregoing embodiment of the sensing mode switching method performed by the third device, and achieve the same technical effects, so that repetition is avoided and details are not repeated herein.

The embodiment of the application also provides a sensing mode switching system, which comprises: a communication device operable to perform the steps of the method performed by the first device or the steps of the method performed by the second device, and a backscatter device operable to perform the steps of the method performed by the third device.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. The sensing mode switching method is characterized by comprising the following steps of:

2. The method of claim 1, wherein the target awareness mode comprises one of:

3. The method of claim 1, wherein the indication information further comprises at least one of:

identification information of the second device;

identification information of the third device;

and communicating measurement result information.

4. The method as recited in claim 1, further comprising:

5. The method of claim 1, wherein prior to the first device receiving the indication of the second device, further comprising:

6. The method as recited in claim 1, further comprising:

7. The method of claim 1, wherein prior to the first device receiving the indication of the second device, further comprising:

8. The method of claim 7, wherein before the first device sends the second request information to the third device, further comprising:

wherein the device information includes at least one of:

the position of the backscatter device;

the antenna panel of the backscatter device faces;

a state of motion of the backscatter device;

sensing capability of the backscatter device;

a perceived resource of the backscatter device;

channel state of the backscatter device.

9. The method of claim 7, wherein the first device determining a first handover target from the second device and/or determining a second handover target from a third device according to the indication information and the target awareness, comprises:

10. The method of claim 9, wherein the target handover condition comprises at least one of:

11. The method of claim 1, wherein prior to the first device receiving the indication of the second device, further comprising:

12. The method of claim 6, wherein the first device sending a second handover command to the second handover target comprises:

13. The method of claim 1, wherein the first parameter configuration information comprises at least one of:

relevant configuration information of the backscatter device;

related configuration information of the first signal.

14. The method as recited in claim 1, further comprising:

15. The method according to claim 1, wherein the first device determines a first switching target from the second device according to the indication information and the target awareness mode, and/or after determining a second switching target from a third device, further comprises:

at least part of the historical perceptual measurement information;

sensing target priori information;

sensing region prior information.

16. The sensing mode switching method is characterized by comprising the following steps of:

17. The method as recited in claim 16, further comprising:

18. The method of claim 16, wherein before the second device sends the indication information to the first device, further comprising:

19. The method of claim 16, wherein the first parameter configuration information comprises at least one of:

relevant configuration information of the backscatter device;

related configuration information of the first signal.

20. The method as recited in claim 16, further comprising:

at least part of the historical perceptual measurement information;

sensing target priori information;

sensing region prior information.

21. The method of claim 16, wherein the indication information further comprises at least one of:

sensing measurement result information;

identification information of the second device;

identification information of the third device;

And communicating measurement result information.

22. The sensing mode switching method is characterized by comprising the following steps of:

23. The method of claim 22, wherein the target awareness mode comprises one of:

24. The method as recited in claim 22, further comprising:

25. The method of claim 22, wherein the first parameter configuration information comprises at least one of:

relevant configuration information of the backscatter device;

related configuration information of the first signal.

26. The method as recited in claim 22, further comprising:

at least part of the historical perceptual measurement information;

sensing target priori information;

sensing region prior information.

27. A sensing mode switching device, comprising:

28. A sensing mode switching device, comprising:

the first sending module is used for sending indication information to the first equipment; the indication information comprises sensing measurement result information, the indication information is obtained by sensing measurement based on first parameter configuration information, and the first parameter configuration information comprises sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a backscattering device.

29. A sensing mode switching device, comprising:

the second receiving module is used for receiving second request information of the first equipment; the second request information is used for requesting the third equipment to serve as candidate back scattering equipment participating in the perception measurement corresponding to the target perception mode; the second request information comprises first parameter configuration information suggested by the first device; the first parameter configuration information comprises a sensing parameter configuration used when a sensing node executes sensing measurement corresponding to a target sensing mode through a back scattering device.

30. A communication device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the perceptual mode switching method of any one of claims 1 to 15, or performs the steps of the perceptual mode switching method of any one of claims 16 to 21.

31. A backscatter device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the perceptual mode switching method of any one of claims 22 to 26.

32. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the method of switching a perception mode according to any one of claims 1 to 15, or the steps of the method of switching a perception mode according to any one of claims 16 to 21, or the steps of the method of switching a perception mode according to any one of claims 22 to 26.