CN117729590A

CN117729590A - Switching processing method, device and equipment

Info

Publication number: CN117729590A
Application number: CN202211105490.2A
Authority: CN
Inventors: 李健之; 丁圣利; 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: 2024-03-19
Also published as: WO2024051619A1

Abstract

The application discloses a switching processing method, a switching processing device and switching processing equipment, which belong to the field of communication perception integration, and the switching processing method comprises the following steps: the first device sends switching request information to at least one second candidate node and/or at least one second candidate backscattering device; the first equipment receives switching response information sent by the second candidate node and/or the second candidate back scattering equipment, wherein the switching response information is used for indicating the corresponding second candidate node and/or the second candidate back scattering equipment to agree to serve as a switched sensing node and/or a switched sensing back scattering equipment; the first device determines a target node and/or a target backscattering device from candidate nodes and/or candidate backscattering devices which agree to switch according to the switching response information; the first device sends a handover command to the at least one target node and/or the at least one target backscatter device, the handover command being for informing the target node to perform the first perception and/or informing the target backscatter device to participate in the first perception.

Description

Switching processing method, device and equipment

Technical Field

The application belongs to the technical field of communication perception integration, and particularly relates to a switching processing method, device and equipment.

Background

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.

Point-to-point Backscatter (BSC) technology has been widely used in radio frequency identification (Radio Frequency Identification, RFID) applications, where passive RFID tags can report IDs to readers that interrogate near fields (typically a few centimeters to one 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. 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 radio frequency identification (Radio Frequency Identification, RFID) and backscatter communication (Backscatter Communications) technology, the wireless sensing based on the radio frequency identification (Radio Frequency Identification, RFID) and the backscatter communication technology can achieve basic sensing functions and acquire additional sensing target information, so that the sensing/communication integrated performance is expected to be further enhanced.

At present, wireless sensing based on low-power-consumption backscattering equipment (such as RFID tag or backscattering tag) in a (cellular) mobile communication network is one of important development trends of sense integration, and has a wider application scene. However, under this technique, there is no clear definition of how to perform the switching of the sensing node and/or the sensing backscatter device.

Disclosure of Invention

The embodiment of the application provides a switching processing method, a switching processing device and switching processing equipment, which can solve the problem that in the prior art, how to switch a sensing node and/or a sensing back scattering device in wireless sensing participated by the back scattering device is not specified.

In a first aspect, a handover processing method is provided, including:

the first device sends switching request information to at least one second candidate node and/or at least one second candidate back scattering device, wherein the switching request information is used for requesting the second candidate node to serve as a sensing node after first sensing switching, and/or is used for requesting the second candidate back scattering device to serve as a sensing back scattering device after first sensing switching; the first perception is a perception of participation of a backscatter device;

The first equipment receives switching response information sent by at least one second candidate node and/or at least one second candidate back scattering equipment, wherein the switching response information is used for indicating the corresponding second candidate node and/or the second candidate back scattering equipment to agree to serve as a switched sensing node and/or a switched sensing back scattering equipment;

the first device determines at least one target node and/or at least one target back scattering device from candidate nodes and/or candidate back scattering devices agreeing to switch according to the switching response information;

the first device sends a handover command to at least one target node and/or at least one target backscatter device, the handover command being for informing the target node to perform the first perception and/or informing the target backscatter device to participate in the first perception.

In a second aspect, a handover processing method is provided, including:

the method comprises the steps that a second candidate node receives switching request information sent by first equipment, wherein the switching request information is used for requesting the second candidate node to serve as a sensing node after first sensing switching; the first perception is a perception of participation of a backscatter device;

The second candidate node sends switching response information to the first device, wherein the switching response information is used for indicating that the corresponding second candidate node agrees to serve as a switched sensing node;

the first candidate node receives parameter configuration information sent by first equipment; the parameter configuration information is used for configuring the first candidate node to execute a first perceived perception parameter; the first perception is a perception of participation of a backscatter device; the first candidate node includes: the candidate nodes agreeing to switch in the second candidate nodes;

the first candidate node sends and/or receives the first signal corresponding to the first perception according to the parameter configuration information;

the node receiving the first signal obtains a measured value of the first perceived sensing measurement according to the received first signal; the measure of perceived measurement is used to assist the first device in determining at least one target node from the at least one first candidate node that performs the first perception.

In a third aspect, a handover processing method is provided, including:

the second candidate back scattering equipment receives switching request information sent by the first equipment, wherein the switching request information is used for requesting the second candidate back scattering equipment to serve as a perceived back scattering equipment after first perceived switching; the first perception is a perception of participation of a backscatter device;

The second candidate back scattering equipment sends switching response information to the first equipment, wherein the switching response information is used for indicating that the corresponding second candidate back scattering equipment agrees to serve as the switched perceived back scattering equipment;

the method comprises the steps that a first candidate backscattering device receives parameter configuration information sent by a first device; the parameter configuration information is used for configuring a perception parameter of the first candidate back scattering equipment to participate in first perception; the first perception is a perception of participation of a backscatter device; the first candidate backscatter device includes: candidate backscatter devices agreeing to the handover among the second candidate backscatter devices;

the first candidate back scattering equipment reflects or scatters the first signal corresponding to the first perception according to the parameter configuration information; the node receiving the first signal obtains a measured value of the first perceived sensing measurement according to the received first signal; the measure of perceived measurement is used to assist the first device in determining at least one target backscatter device from the at least one first candidate backscatter device that participates in the first perception.

In a fourth aspect, a handover processing apparatus is provided, including:

A first sending module, configured to send, to at least one second candidate node and/or at least one second candidate backscatter device, handover request information, where the handover request information is used to request the second candidate node to be a first perceptually switched sensing node, and/or is used to request the second candidate backscatter device to be a first perceptually switched sensing backscatter device; the first perception is a perception of participation of a backscatter device;

the first receiving module is used for receiving switching response information sent by at least one second candidate node and/or at least one second candidate back scattering device, and the switching response information is used for indicating the corresponding second candidate node and/or the second candidate back scattering device to agree to serve as a switched sensing node and/or a switched sensing back scattering device;

a first determining module, configured to determine at least one target node and/or at least one target backscatter device from candidate nodes and/or candidate backscatter devices that agree to switch according to the switch response information;

and the second sending module is used for sending a switching command to at least one target node and/or at least one target backscattering device, wherein the switching command is used for informing the target node to execute the first perception and/or informing the target backscattering device to participate in the first perception.

In a fifth aspect, there is provided a first 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 method as described in the first aspect.

In a sixth aspect, a first device is provided, including a processor and a communication interface, where the communication interface is configured to send handover request information to at least one second candidate node and/or at least one second candidate backscatter device, where the handover request information is configured to request the second candidate node to be a first perceptually switched sensing node, and/or is configured to request the second candidate backscatter device to be a first perceptually switched sensing backscatter device; the first perception is a perception of participation of a backscatter device; transmitting switching request information to at least one second candidate node and/or at least one second candidate back-scattering device, wherein the switching request information is used for requesting the second candidate node to serve as a sensing node after first sensing switching, and/or is used for requesting the second candidate back-scattering device to serve as a sensing back-scattering device after first sensing switching; the first perception is a perception of participation of a backscatter device; the processor is configured to determine at least one target node and/or at least one target backscatter device from candidate nodes and/or candidate backscatter devices that agree to switch on the handover response information; the communication interface is further configured to send a handover command to at least one target node and/or at least one target backscatter device, the handover command being configured to inform the target node to perform the first perception and/or to inform the target backscatter device to participate in the first perception.

In a seventh aspect, a handover processing apparatus is provided, including:

the second receiving module is used for receiving switching request information sent by the first equipment, wherein the switching request information is used for requesting the second candidate node to serve as a sensing node after the first sensing switching; the first perception is a perception of participation of a backscatter device;

the third sending module is used for sending switching response information to the first equipment, wherein the switching response information is used for indicating that the corresponding second candidate node agrees to serve as a switched sensing node;

the third receiving module is used for receiving the parameter configuration information sent by the first equipment; the parameter configuration information is used for configuring the first candidate node to execute a first perceived perception parameter; the first perception is a perception of participation of a backscatter device;

the first perception processing module is used for sending and/or receiving a first signal corresponding to the first perception according to the parameter configuration information;

In an eighth aspect, there is provided a node 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 second aspect.

A ninth aspect provides a node, including a processor and a communication interface, where the communication interface is configured to receive handover request information sent by a first device, where the handover request information is used to request the second candidate node to be a first perceptually switched aware node; the first perception is a perception of participation of a backscatter device; transmitting switching response information to the first device, wherein the switching response information is used for indicating that a corresponding second candidate node agrees to serve as a switched sensing node; receiving parameter configuration information sent by first equipment; the parameter configuration information is used for configuring the first candidate node to execute a first perceived perception parameter; the first perception is a perception of participation of a backscatter device; according to the parameter configuration information, sending and/or receiving the first signal corresponding to the first perception is carried out;

In a tenth aspect, there is provided a handover processing apparatus including:

a fourth receiving module, configured to receive switching request information sent by a first device, where the switching request information is used to request the second candidate backscatter device to serve as a first perceptually switched perceived backscatter device; the first perception is a perception of participation of a backscatter device;

a fourth sending module, configured to send, to the first device, switching response information, where the switching response information is used to instruct a corresponding second candidate backscatter device to agree to serve as a switched perceived backscatter device;

a fifth receiving module, configured to receive parameter configuration information sent by the first device; the parameter configuration information is used for configuring a perception parameter of the first candidate back scattering equipment to participate in first perception; the first perception is a perception of participation of a backscatter device;

the second perception processing module is used for reflecting or scattering the first signal corresponding to the first perception according to the parameter configuration information; the node receiving the first signal obtains a measured value of the first perceived sensing measurement according to the received first signal; the measure of perceived measurement is used to assist the first device in determining at least one target backscatter device from the at least one first candidate backscatter device that participates in the first perception.

In an eleventh aspect, there is provided 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 method as described in the third aspect.

In a twelfth aspect, a backscatter device is provided, including a processor and a communication interface, where the communication interface is configured to receive handover request information sent by a first device, where the handover request information is configured to request the second candidate backscatter device to be a first perceptually switched perceived backscatter device; the first perception is a perception of participation of a backscatter device; transmitting switching response information to the first device, wherein the switching response information is used for indicating that the corresponding second candidate back scattering device agrees to serve as a switched perceived back scattering device; receiving parameter configuration information sent by first equipment; the parameter configuration information is used for configuring a perception parameter of the first candidate back scattering equipment to participate in first perception; the first perception is a perception of participation of a backscatter device; reflecting or scattering the first signal corresponding to the first perception according to the parameter configuration information; the node receiving the first signal obtains a measured value of the first perceived sensing measurement according to the received first signal; the measure of perceived measurement is used to assist the first device in determining at least one target backscatter device from the at least one first candidate backscatter device that participates in the first perception.

In a thirteenth aspect, there is provided a communication system comprising: a first device operable to perform the steps of the method as described in the first aspect, a first candidate node operable to perform the steps of the method as described in the second aspect, and a first candidate backscatter device operable to perform the steps of the method as described in the third aspect.

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

In a fifteenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect, or to implement the method as described in the third aspect.

In a sixteenth 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 as described in the first aspect, or to perform the steps of the method as described in the second aspect, or to perform the steps of the method as described in the third aspect.

In the embodiment of the present application, the first device selects at least one target node and/or at least one target backscatter device to be switched according to the consent fed back by at least one second candidate node and/or at least one second candidate backscatter device as response information of the switched sensing node and/or sensing backscatter device, and sends a switching command to the at least one target node and/or at least one target backscatter device, so as to implement switching of the sensing node and/or sensing backscatter device.

Drawings

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 shows one of the step flowcharts of the handover processing method provided in the embodiment of the present application;

FIG. 3 is a second flowchart illustrating a handover processing method according to an embodiment of the present disclosure;

FIG. 4 is a third flowchart illustrating a step of a handover processing method according to an embodiment of the present disclosure;

fig. 5 shows one of schematic structural diagrams of a switching processing device provided in an embodiment of the present application;

FIG. 6 is a second schematic diagram of a switching device according to an embodiment of the present disclosure;

FIG. 7 is a third schematic diagram of a switching device according to an embodiment of the present disclosure;

Fig. 8 shows a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 9 shows a schematic structural diagram of a terminal provided in an embodiment of the present application;

fig. 10 shows a schematic structural diagram of a network side device according to an embodiment of the present application;

fig. 11 shows a schematic structural diagram of a core network 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 top, 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 a core network device, wherein the access network device 12 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. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which 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 and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiments of the present application, only a base station in an NR system is described as an 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.

The switching processing method provided by the embodiment of the application is described in detail below by some embodiments and application scenarios thereof with reference to the accompanying drawings.

In a mobile communication network, a base station (including 1 or more transmission and reception points (Transmission Reception Point, TRP) on the base station, user Equipment (User Equipment), UE (including 1 or more subarrays/panels (Panel) on the UE) can be used as a sensing node participating in a sensing/passing integrated service. And at least one communication signal is spliced/combined/overlapped on the time domain and/or the frequency domain.

Depending on whether the sensing node is the same device, two sensing modes can be divided: a sends out B receives, and A spontaneously receives. "A-transmitting-B-receiving" means that the sensing signal transmission and reception are performed by two devices, i.e., sensing node A and sensing node B are not the same device and are physically separated; "a self-receiving" means that the sensing signal transmission and reception are performed by the same device, and the sensing node a senses by receiving a signal echo transmitted by itself.

In wireless sensing with the participation of a backscatter device (i.e., tag), the backscatter device may be coupled to the sensing target, i.e., the backscatter device may be mounted on the sensing target; it is also possible that the backscatter device is decoupled from the perceived object, i.e. the backscatter device is deployed in the environment surrounding the perceived object. During sensing, the sensing node receives at least part of the first signal reflected/scattered by the backscatter devices involved in sensing and obtains a measurement/sensing result of the sensing measurement. The number of backscatter devices involved in sensing may be greater than or equal to 1.

In the embodiment of the present application, a node that sends and/or receives a sensing signal (i.e., a first signal) is referred to as a sensing node, and the sensing node may be a base station or a UE. The device for determining the switched Sensing node and/or the Sensing backscatter device may be a Sensing node (such as a base station or UE), or may be a core network device (such as a Sensing Function (SF), an access and mobility management Function (Access and Mobility Management Function, AMF), a Sensing application server in a core network, etc.).

In the embodiment of the present application, the sensing node before switching is referred to as a source node, the node after switching is referred to as a target node, and the node that may be selected as the target node is referred to as a candidate node. While the perceived backscatter device before switching is referred to as a source backscatter device, the perceived backscatter device after switching is referred to as a target backscatter device, and the backscatter devices that may be selected as target backscatter devices are referred to as candidate backscatter devices.

As shown in fig. 2, an embodiment of the present application provides a handover processing method, including:

step 201, the first device sends switching request information to at least one second candidate node and/or at least one second candidate back scattering device, where the switching request information is used to request the second candidate node to be a first perceptually switched sensing node, and/or is used to request the second candidate back scattering device to be a first perceptually switched sensing back scattering device; the first perception is a perception of participation of a backscatter device;

alternatively, the first device may be a source node or a core network device, which is not specifically limited herein.

Step 202, the first device receives switching response information sent by at least one second candidate node and/or at least one second candidate back scattering device, where the switching response information is used to indicate that the corresponding second candidate node and/or second candidate back scattering device agrees to be a switched sensing node and/or sensing back scattering device;

Step 203, the first device determines at least one target node and/or at least one target backscatter device from candidate nodes and/or candidate backscatter devices agreeing to switch according to the switch response information;

step 204, the first device sends a handover command to at least one target node and/or at least one target backscatter device, the handover command being for informing the target node to perform the first perception and/or informing the target backscatter device to participate in the first perception.

Optionally, the first candidate node that did not receive the handover command stops performing the first perception and/or the first candidate backscatter device that did not receive the handover command stops participating in the first perception.

Alternatively, the handover request information may include a soft handover request, or a hard handover request. Wherein the hard handoff comprises: the target node and/or the target backscatter device perform a first perception; and the source-aware node and/or the source backscatter device end the first awareness and release the awareness resources; soft handoff includes: and the target node and/or the target backscatter device perform first sensing, and after the number of times of obtaining the measured value of the sensing measurement quantity reaches a preset number of times or the first sensing reaches a preset time, the source sensing node and/or the source backscatter device end the first sensing and release the sensing resource.

The determination of the second candidate node is based on at least one of the following information:

1) Position information of the second candidate node;

2) The second candidate node antenna panel orientation information;

3) Status information of the second candidate node (including information of moving speed, moving direction, time period of holding still/moving, etc.);

4) Sensing capability information of the second candidate node (including sensing coverage, maximum bandwidth available for sensing, maximum sustainable time of sensing service, type of sensing signal capable of being 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) The second candidate node may be currently used to perform perceived Resource information (including time resources (symbol number, 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 sub-array), phase modulation resources (hardware phase shifter number), orthogonal code resources (orthogonal code length and number), etc.;

6) Channel state information (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 the at least one communication link) of the second candidate node.

In at least one embodiment of the present application, step 203 includes:

the first equipment sends parameter configuration information to at least one first candidate node and/or at least one first candidate backscattering equipment according to the switching response information; the parameter configuration information is used for configuring the first candidate node to execute a first perceived perception parameter and/or configuring the first candidate backscattering device to participate in the first perceived perception parameter;

the first device obtains a measured value of a first perceived measurement that the at least one first candidate node and/or the at least one first candidate backscatter device participates in based on the parameter configuration information;

the first device determining at least one target node and/or at least one target backscatter device from the at least one first candidate node and/or at least one first candidate backscatter device based on the measurement;

wherein the first candidate node comprises: the candidate nodes agreeing to switch in the second candidate nodes; and/or, the first candidate backscatter device comprises: and agreeing to the candidate backscatter device of the handover in the second candidate backscatter device.

Optionally, further computing may obtain a perception result based on at least one measurement of the at least one perception measurement; alternatively, at least one measurement of at least one perceived measurement may also be referred to as a perceived result, and is not specifically limited herein;

in one implementation, the first device obtains an actual measurement of the perceived measurement; in another implementation manner, the first device obtains a decision result of whether an actual measurement value of the sensing measurement quantity meets a preset threshold.

Optionally, in the one-time switching process in the embodiment of the present application, if only the sensing node is switched, the first device only needs to select at least one target node; alternatively, if only the perceived backscatter devices are switched, the first device need only select at least one target backscatter device; alternatively, if both the sensing node and the sensing backscatter devices are switched, the first device needs to select at least one target node and at least one target backscatter device.

It should be noted that the sensing measurement amounts mentioned in the embodiments of the present application can be classified into the following 4 types:

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;

awareness traffic information (e.g., awareness traffic ID);

a data subscription ID;

measurement volume usage (communication, perception, sense of openness);

time information;

sensing node information (e.g., UE ID, node location, device orientation);

sensing link information (such as sensing link sequence number, receiving-transmitting node identification);

measurement quantity specification information (in the form of, for example, amplitude values, phase values, complex values of amplitude and phase combinations; resource types, for example, time domain measurements, frequency domain resource measurements);

measurement quantity index information (e.g., signal-to-Noise Ratio, SNR), perceptual SNR).

It should be further noted that, the parameter configuration information mentioned in the embodiments of the present application is perceptually relevant parameter configuration information, where the perceptually relevant parameter configuration information includes at least one of the following (for simplicity of expression, the backscatter device will be simply referred to as Tag in the following description):

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

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

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;

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;

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;

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;

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

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

a signal direction; such as direction of the sense signal or beam information;

time resources, such as a slot index where the sense signal is located or a 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;

frequency resources including a center frequency Point of a sensing signal, bandwidth, RB or subcarrier, point A, a starting bandwidth position and the like;

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

sensing node (base station or UE) antenna configuration information, including 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;

information about the position of an antenna element for transmitting and/or receiving a sensor signal relative to a local reference point on the antenna array (Cartesian coordinates (x, y, z) or spherical coordinates may be used)A representation);

position information (which may be in Cartesian coordinates (x, y, z) or in spherical coordinates) of a panel for transmitting and/or receiving a perceived signal relative to a local reference point on an antenna arrayRepresentation) and the location information of the antenna elements within these selected panels for transmitting the perceived signal with respect to a certain uniform reference point of the panel (e.g. the panel center point) (which may be in cartesian coordinates (x, y, z) or in spherical coordinates)>A representation);

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. For example: 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;

threshold information, namely, threshold value used for judging whether the obtained sensing measurement value meets the first condition or not for any one of the source node, the core network equipment and the candidate node. The threshold value may be different for different candidate nodes and/or candidate tags; for any one candidate node and/or candidate tag, the sensing measurement quantity and the corresponding threshold value thereof can be more than 1; the first condition is: the corresponding candidate node/candidate tag of the obtained perception measurement value can be used as a target node/target tag;

the backscattering tag ID participating in sensing and the information related to the sensing signal configuration thereof, wherein the tag ID is not limited to the EPC of RFID, and can be the ID of a new device;

the Tag working bandwidth, the working frequency, the channel number and the subcarrier frequency corresponding to each channel;

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

Tag antenna configuration information comprising at least one of: tag antenna element ID or tag antenna port ID for receiving and transmitting sensing signals, tag panel ID+element ID for receiving and transmitting sensing signals, and location information (Cartesian coordinates (x, y, z) or spherical coordinates of tag antenna element for receiving and transmitting sensing signals relative to a local reference point on an antenna arrayRepresentation), location information of the tag panel for receiving and transmitting the sense signal with respect to a certain local reference point on the antenna array (cartesian coordinates (x, y, z) or spherical coordinates>Representation) and the location information of the antenna elements within these selected panels for transmitting the perceived signal with respect to a certain uniform reference point of the panel (e.g. the panel center point) (which may be in cartesian coordinates (x, y, z) or in spherical coordinates)>Representation), bitmap information of tag antenna elements (e.g.: the bitmap indicates that an array element is selected for receiving and transmitting a sense signal using "1", and indicates that an array element is not selected (or vice versa) using "0"), bitmap information of tag array panel (for example: the bitmap indicates that panels are selected for receiving and transmitting the sense signal using a "1", and that the array elements are not selected (or vice versa) using a "0" and the array element bitmap information within the selected panels;

Location information (Cartesian coordinates (x, y, z) or spherical coordinates may be used) of Tag antenna array local reference point relative to at least one sensing node (base station or UE)A representation);

the modulation scheme indication information applicable to the Tag indicates that the modulation scheme adopted by the Tag comprises: amplitude modulation, phase modulation, frequency modulation, and combinations of any of the above at least 2 modes, such as amplitude-phase modulation, etc.;

the Tag amplitude modulation configuration information, namely amplitude configuration information for Tag to adjust the reflected signal, comprises an amplitude range of continuous amplitude modulation or a discrete state corresponding to discrete amplitude modulation;

tag phase modulation configuration information, i.e. phase configuration information for the Tag to adjust the reflected signal, including the phase range of continuous phase modulation, or the discrete state corresponding to discrete phase modulation

The Tag frequency modulation configuration information, namely frequency configuration information for Tag to adjust the reflected signal, comprises a frequency range of continuous frequency modulation or a discrete state corresponding to discrete frequency modulation;

the signal modulation method related to tag communication part in the sensing signal comprises DSB-ASK, SSB-ASK, PR-ASK (Phase-reverse ASK), FSK, BPSK, QPSK, QAM method, etc

The sensing signal relates to the data coding mode and frame format of the tag communication part. 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 the determination of a preamble or a frame-sync, etc.;

The type of Tag encryption algorithm, such as CRC16 or CRC 24;

the type of Tag channel coding FEC and the corresponding coding rate.

In an alternative embodiment of the present application, the first perception comprises: the first sensing node transmits a first signal and the second sensing node receives at least part of the first signal reflected or scattered by the backscatter device;

wherein the at least one first candidate node comprises: at least one first candidate node of the first sensing node and/or at least one first candidate node of the second sensing node.

In other words, the first sensing node transmits a first signal and the second sensing node receives the first signal, at least part of the received signal being the first signal reflected/scattered by the backscatter device. The switching of the first perception in the scene comprises: only sensing node switching, only sensing backscatter device switching, and both sensing node and sensing backscatter device switching;

the switching of the sensing node comprises the following steps: only the first sensing node switches, only the second sensing node switches, and the switching of the first sensing node and the second sensing node.

In another alternative embodiment of the present application, the first perception comprises: the third sensing node transmits the first signal, and the third sensing node receives at least part of the first signal reflected or scattered by the back scattering device;

Wherein the at least one first candidate node comprises: at least one first candidate node of the third aware node.

In other words, the first sensing node transmits the first signal to the third sensing node and the third sensing node receives the first signal, i.e. the third sensing node spontaneously receives the first signal, and at least part of the received signal is the first signal reflected/scattered by the backscatter device. The switching of the first perception in the scene comprises: only sensing node switching, only sensing backscatter device switching, and both sensing node and sensing backscatter device switching;

the switching of the sensing node comprises the following steps: and the third sensing node switches.

As another alternative embodiment, the method further comprises:

the first device receives rejection information sent by at least one second candidate node and/or at least one second candidate back-scattering device, wherein the rejection information is used for indicating that the corresponding second candidate node and/or second candidate back-scattering device does not agree to serve as a switched sensing node and/or sensing back-scattering device;

wherein the second candidate node and/or the second candidate backscatter device sending the rejection information does not participate in the perceived measurement of the first perception.

In another implementation manner, under the condition that the second candidate node and/or the second candidate backscattering device does not agree to serve as the switched sensing node and/or the switched sensing backscattering device, no information is sent to the first device, the first device does not receive the information fed back by the second candidate node and/or the second candidate backscattering device within a preset time period after sending the switching request information, and then the second candidate node and/or the second candidate backscattering device defaults to refuse to serve as the switched sensing node and/or the switched sensing backscattering device.

As an alternative embodiment, if all the second candidate nodes and/or all the second candidate reverse devices do not agree to the handover, the subsequent processing may be one of the following:

i. the first device re-determines the second candidate node and/or the second candidate backscatter device

Maintaining the current first perception;

ending the current first perception.

In at least one embodiment of the present application, step 203 includes:

the first device determines the first candidate node and/or the first candidate back scattering device, of which the measured value meets a preset threshold condition, from the at least one first candidate node and/or the at least one first candidate back scattering device as the target node and/or the target back scattering device.

In one implementation, the first device determines whether an actual measurement value of the perceived measurement quantity meets a preset threshold condition, and selects a target node and/or a target backscatter device from the first candidate nodes and/or the first candidate backscatter devices;

in another implementation manner, a candidate node receiving the first signal reflected or scattered by the back-scattering device automatically determines whether the actual measurement value of the perceived measurement value meets a preset threshold condition, and feeds back a determination result to the first device (i.e. whether the actual measurement value meets the preset threshold condition), where the first device selects the target node and/or the target back-scattering device from the first candidate node and/or the first candidate back-scattering device according to the determination result.

In an alternative embodiment, the method further comprises:

if none of the measured values of the perceived measurement quantity of the at least one first candidate node and/or the at least one first candidate backscatter device meets the preset threshold condition, the first device performs a first operation; the first operation includes any one of:

re-determining at least one first candidate node and/or at least one first candidate backscatter device;

stopping the first perception;

Continuing to perform the first perception may also be understood as maintaining the current first perception.

In at least one optional embodiment of the present application, in a case where a handover of the perceived backscatter device is required, the first device sends handover request information to at least one second candidate backscatter device, including:

the first device sends a handover request message to at least one second candidate backscatter device via the first perceived backscatter device inventory process.

For example, when the first device is node a that transmits the first signal, node a may Select at least a portion of the backscatter devices within the coverage area of the first signal for inventory through a Select command. Node a sends handover request information to any of the at least 1 second candidate backscatter devices via RN16 and command field of the ACK message.

Optionally, before sending the handover request information to the second candidate backscatter device, the method further comprises:

the first device determines at least one second candidate back-scattering device according to first information of the back-scattering devices in the first signal coverage area; the first information includes at least one of:

Position information of the backscatter device;

back scattering device antenna panel orientation information;

the movement state information of the backscatter device includes information of movement speed, movement direction, period of time to remain stationary/moving, and the like;

the sensing capability information of the back scattering device comprises sensing coverage, maximum bandwidth available for sensing, maximum sustainable time of sensing service, type and frame format of sensing signals which can be supported, and back scattering device antenna array information (comprising array type, antenna number, array aperture, antenna polarization characteristic, array element gain, directivity characteristic and the like);

the backscattering device may be currently used to perform perceived Resource information, including time resources (symbol number, slot number, frame number, etc.), frequency resources (RB (Resource Block) number, RE (Resource Element) 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.;

channel state information for a backscatter device includes at least one of a channel transfer function/channel impulse response, a channel quality indication (Channel Quality Indicator, CQI), a precoding matrix indication (Precoding Matrix Indicator, PMI), a channel state information reference signal (Channel State Information Reference Signal, CSI-RS) resource indication, a synchronization signal/physical broadcast channel signal block (Synchronization Signal and PBCH block, SSB) resource indication, a Layer Indication (LI), a Rank Indication (RI), and an L1 reference signal received power (Layer 1reference signal received power,L1-RSRP) of at least one communication link.

The first information may be acquired through a process of checking by the backscatter device, for example, the backscatter device feeds back the first information of the backscatter device to the node a by checking the RN16 in the ACK sent by the node a.

Alternatively, the second candidate backscatter device may be a perceived backscatter device deployed on the perceived target, or may be a perceived backscatter device deployed anywhere in the perceived environment.

In at least one optional embodiment of the present application, the first perceived switching process includes:

the target node and/or the target backscatter device perform a first perception; and the source-aware node and/or the source backscatter device end the first awareness and release the awareness resources; may be referred to as a hard handoff;

or,

the target node and/or the target backscatter device perform first sensing, and after the number of times of obtaining the measured value of the sensing measurement quantity reaches a preset number of times or the first sensing reaches a preset time, the source sensing node and/or the source backscatter device end the first sensing and release the sensing resource; may be referred to as soft handoff.

In other words, after determining the target node and/or the target backscatter device, the network performs a handover operation, and specifically, 2 methods of hard handover and soft handover may be adopted:

If a hard switching method is adopted, the source sensing node and/or the source backscattering device end the first sensing and release the sensing resources; at the same time or after that, the target node and/or the target backscatter device make a first perception;

if a soft handover method is adopted, the target node and/or the target backscatter device perform first sensing, and after the number of times of obtaining the measurement value of the sensing measurement quantity reaches a preset number of times or the first sensing reaches a preset time, the source sensing node and/or the source backscatter device end the first sensing and release the sensing resource.

Optionally, the method further comprises:

the first device sends a perception ending command to the first perceived source perception node and/or the source back scattering device, wherein the perception ending command is used for indicating the corresponding source perception node and/or the source back scattering device to end participating in the first perception. Namely, after receiving a sensing ending command, the source sensing node and/or the source backscattering device end participating in the first sensing and release the sensing resources.

Wherein the first device sending a perception ending command to the first perceived source backscatter device, comprising:

the first device sends a sensing end command to the source backscatter device through the first sensing backscatter device inventory process. For example, when the first device is node a transmitting the first signal, node a transmits a sensing end command to any at least 1 source backscatter device through RN16 and command field of the ACK message.

As an alternative embodiment, the method further comprises:

the first device sending at least part of the first perceived history information to the target node; wherein the history information includes at least one of:

sensing a historical measurement of the measurement quantity;

historical perception results; wherein the further calculation may result in a perception result based on at least one measurement of the at least one perception measurement; alternatively, at least one measurement of at least one perceived measurement may also be referred to as a perceived result, and is not specifically limited herein;

sensing target or region prior information.

It should be noted that, in this embodiment of the present application, before the first device sends the handover request information to the second candidate node and/or the second candidate backscatter device, the method further includes: the network executes switching measurement, and the first equipment decides whether to initiate switching according to a measurement report obtained by the switching measurement; if the switching is not initiated, the current first perception can be maintained or ended; and if the switching is initiated, sending switching request information to the second candidate node and/or the second candidate backscattering equipment.

Optionally, the step of performing the handover measurement by the network in the case that the node a transmits the first signal and the node B receives the first signal comprises:

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

or, the core network device (for example, a sensing function network element) sends a handover measurement request to the node B, and the node B performs handover measurement after receiving the handover measurement request and feeds back a handover measurement report to the core network device; optionally, the node B or the core network device sends a handover measurement report to the node a.

Before the node B performs the handover measurement, the core network device or node a transmits handover measurement configuration information necessary for the handover measurement to the node B. Alternatively, the handover measurement configuration information is included in a handover measurement request.

Optionally, in the case that the node a autonomously receives the first signal, the step of the network performing handover measurement includes:

the core network equipment (such as a sensing function network element) sends a switching measurement request to the node A (such as a base station or UE), and the node A performs switching measurement after receiving the switching measurement request and feeds back a switching measurement report to the core network equipment;

or the node A actively performs handover measurement to acquire a handover measurement report. Optionally, node a sends a handover measurement report to the core network device.

Wherein the handover measurement configuration information includes at least one of:

1) Measuring object: one or more first signals indicating source nodes and/or candidate nodes to be measured, and sensing measurement quantity and sensing parameter configuration information related to the first signals;

2) Handover measurement report configuration: the reporting principle can be a periodic reporting principle or an event triggering principle; measurement report formats such as the maximum number of cells reported, the number of beams, etc.;

3) Measuring events and related parameters: including measurement event definition, event related parameters, handover decision conditions, etc.;

4) Measurement ID: measurement identities, each measurement ID corresponding to a measurement object and a handover measurement report configuration;

the handover measurement report includes at least measurement results of the perceived measurement quantity required for handover measurement; the perceived measurement quantity required for the handover measurement may comprise a current perceived traffic perceived measurement quantity.

Optionally, the triggering event of the network performing the handover measurement includes:

1) The state of the perceived target changes (the state includes position, speed, orientation, etc.);

2) The state of the node A or the node B for executing sensing changes (the state comprises position, speed, direction, electric quantity and the like);

3) A change in the perceived area environment (e.g., a blockage);

4) The state of node a or node B changes (states include position, speed, orientation, power, available bandwidth, etc.);

5) The sensing measurement quantity obtained by the node A or the node B reaches a preset threshold. For example, at least one of the perceived signal received power, perceived SNR, perceived SINR, distance/speed/angle measurements, etc., meets a preset handoff threshold.

6) The communication measurement quantity obtained by the node A or the node B reaches a preset threshold. The communication measurements include 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.

7) Node a and/or node B may change the available perceived resources. For example, other high priority awareness/communication/sense of presence integrated traffic is bursty and it is necessary to evaluate whether to initiate an awareness handoff procedure based on the remaining available awareness resources.

In short, the network is triggered to perform handover measurements in case of degradation or even interruption of perceived traffic performance caused by perceived target state changes or perceived environment changes.

In summary, in the embodiment of the present application, the first device selects at least one target node and/or at least one target backscatter device to be switched according to the measured value of the first perceived measurement quantity that the at least one first candidate node and/or the at least one first candidate backscatter device participates in based on the parameter configuration information, and sends a switching command to the at least one target node and/or the at least one target backscatter device, so as to implement switching of the perceived node and/or the perceived backscatter device.

As shown in fig. 3, the embodiment of the present application further provides a handover processing method, including:

step 301, a second candidate node receives switching request information sent by a first device, where the switching request information is used to request the second candidate node to serve as a sensing node after a first sensing switch; the first perception is a perception of participation of a backscatter device;

alternatively, the handover request information may include a soft handover request, or a hard handover request. Wherein the hard handoff comprises: the target node and/or the target backscatter device perform a first perception; and the source-aware node and/or the source backscatter device end the first awareness and release the awareness resources; soft handoff includes: the target node and/or the target backscatter device perform first sensing, and after the number of times of obtaining the measured value of the sensing measurement quantity reaches a preset number of times or the first sensing reaches a preset time, the source sensing node and/or the source backscatter device end the first sensing and release the sensing resource;

Step 302, the second candidate node sends switching response information to the first device, where the switching response information is used to instruct the corresponding second candidate node to agree to serve as a switched sensing node;

step 303, the first candidate node receives parameter configuration information sent by the first device; the parameter configuration information is used for configuring the first candidate node to execute a first perceived perception parameter; the first perception is a perception of participation of a backscatter device; the first candidate node includes: the candidate nodes agreeing to switch in the second candidate nodes;

Step 304, the first candidate node performs transmission and/or reception of the first signal corresponding to the first perception according to the parameter configuration information;

optionally, the first device obtains an actual measurement value of the perceived measurement quantity; or the first device obtains a judgment result of whether the actual measured value of the sensing measurement quantity meets a preset threshold condition.

as an optional embodiment, if the second candidate node receiving the switching request information sent by the first device switches differently, sending rejection information to the first device, where the rejection information is used to indicate that the corresponding second candidate node does not agree to be a switched sensing node;

wherein the second candidate node sending the rejection information does not participate in the first perceived perception measurement.

In another implementation manner, under the condition that the second candidate node does not agree to serve as the switched sensing node, no information is sent to the first device, and the first device does not receive the information fed back by the second candidate node in a preset time period after sending the switching request information, so that the second candidate node is defaulted to reject serving as the switched sensing node.

In one embodiment of the present application, the method further comprises:

the first candidate node receives a switching command sent by the first device, and determines the first candidate node as a target node; the switch command is used for notifying a target node to execute the first perception;

and continuing to execute the first sensing according to the switching command.

Optionally, the method further comprises:

and if the first candidate node does not receive the switching command sent by the first device, stopping executing the first sensing.

In summary, in the embodiment of the present application, the first device selects at least one target node to be switched according to a measured value of a first perceived measurement quantity that at least one first candidate node participates in based on parameter configuration information, and sends a switching command to the at least one target node, so as to implement switching of the perceived node.

As shown in fig. 4, the embodiment of the present application further provides a handover processing method, including:

step 401, a second candidate back-scattering device receives a first device and sends switching request information, where the switching request information is used to request the second candidate back-scattering device to serve as a first perceived-switched perceived back-scattering device; the first perception is a perception of participation of a backscatter device;

step 402, the second candidate backscattering device sends switching response information to the first device, where the switching response information is used to instruct the corresponding second candidate backscattering device to agree to be a switched perceived backscattering device;

step 403, the first candidate backscattering device receives parameter configuration information sent by the first device; the parameter configuration information is used for configuring a perception parameter of the first candidate back scattering equipment to participate in first perception; the first perception is a perception of participation of a backscatter device; the first candidate backscatter device includes: candidate backscatter devices agreeing to the handover among the second candidate backscatter devices;

Step 404, the first candidate backscattering device performs reflection or scattering of the first signal corresponding to the first perception according to the parameter configuration information; the node receiving the first signal obtains a measured value of the first perceived sensing measurement according to the received first signal; the measure of perceived measurement is used to assist the first device in determining at least one target backscatter device from the at least one first candidate backscatter device that participates in the first perception.

It should be noted that, in the process of reflecting/scattering the first signal, the first candidate back-scattering device may directly reflect/scatter, 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.

As an optional embodiment, if the second candidate backscatter devices that receive the handover request information sent by the first device are different in handover, sending rejection information to the first device, where the rejection information is used to indicate that the corresponding second candidate backscatter devices do not agree to be a perceived backscatter device after handover;

Wherein the second candidate backscatter device that sent the rejection information does not participate in the perceived measurement of the first perception.

In another implementation manner, under the condition that the second candidate backscatter device does not agree to serve as the switched perception candidate backscatter device, no information is sent to the first device, the first device does not receive the information fed back by the second candidate backscatter device within a preset time period after sending the switching request information, and then the second candidate backscatter device defaults to reject serving as the switched perception candidate backscatter device.

In one embodiment of the present application, the method further comprises:

the first candidate back scattering equipment receives a switching command sent by the first equipment and determines the first candidate back scattering equipment as target back scattering equipment; the switch command is used for notifying a target backscatter device to participate in the first perception;

and continuing to participate in the first perception according to the switching command.

Optionally, the method further comprises:

and if the first candidate back scattering equipment does not receive the switching command sent by the first equipment, stopping participating in the first perception.

In summary, in the embodiment of the present application, the first device selects at least one target backscatter device to be switched according to a measured value of a first perceived measurement that the at least one first candidate backscatter device participates in based on parameter configuration information, and sends a switching command to the at least one target backscatter device, so as to implement switching of the perceived backscatter device.

In order to more clearly describe the handover processing method provided in the embodiments of the present application, a complete handover procedure is described in detail below with reference to several examples, and the backscatter device is simply referred to as Tag in the following examples.

Example one, a first sense mode (node A sends a first signal and node B receives a first signal reflected or scattered by a Tag), senses only node-switching

Step 1: the network performs handover measurements.

Step 2: based on the handover measurement report, a decision is made whether to initiate a handover.

Optionally, the node a reports a handover measurement report to the core network device, and the core network device decides whether to initiate a handover request. Or the core network equipment decides whether to initiate a handover request according to the handover measurement report received from the node B. Or the node B decides whether to initiate the switching request according to the switching measurement report.

If a handover is not initiated, the subsequent processing may be to maintain or end the current first perception.

If the switching is initiated, according to different switching nodes, the method is specifically divided into one of the following cases:

case 1: only node B switches.

The node A or the node B or the core network equipment sends first request information to at least one second candidate node B, wherein the first request information is a request first request information receiver serving as a switched sensing node, and receives a first signal reflected/scattered by a tag.

Case 2: only node a switches.

The source node A or the node B or the core network equipment sends second request information to at least one second candidate node A, wherein the second request information is a request second request information receiver serving as a switched sensing node, and sends a first signal.

Case 3: both node a and node B switch.

The core network device sends the first request information to at least one second candidate node B and the second request information to at least one second candidate node a.

Optionally, the first request information and/or the second request information may include a soft handover request.

Step 3: the second candidate node (a and/or B) decides whether to agree to the handover. Discussion separately from the switching node:

case 1: only node B switches.

And agreeing that the second candidate node B transmits first response information to the first request information transmitter, wherein the first response information indicates that the first request information transmitter agrees to switch, and the first response information transmitter receives the first signal reflected/scattered by the tag after switching.

Optionally, the second candidate node B feeds back the suggested first parameter configuration information in the first response information. The first parameter configuration information is used for the candidate node to execute the first perceived perception parameter configuration.

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

And if not, optionally, the second candidate node B sends first rejection information to the first request information sender, wherein the first rejection information indicates the first request information sender, and the first rejection information sender does not sense.

If all the second candidate nodes do not agree to switch, the subsequent processing may be one of the following: i. the node A or the core network equipment re-determines a first candidate node B; maintaining the current perception; ending the current perception;

case 2: only node a switches.

And agreeing that the second candidate node A transmits second response information to the second request information transmitter, wherein the second response information indicates the second request information transmitter, and the second response information transmitter agrees to switch and transmits the first signal after switching.

Optionally, the second candidate node a feeds back the suggested first parameter configuration information in the second response information. If the second request information includes a soft handover request and the first candidate node agrees with and supports soft handover, optionally, the first parameter configuration information includes soft handover parameter configuration information.

And if not, optionally, the second candidate node A sends second rejection information to the second request information sender, wherein the second rejection information indicates the second request information sender, and the second rejection information sender does not sense.

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

Case 3: and if both the node A and the node B are switched, the operation of the case 1 and the case 2 is carried out simultaneously.

Step 4: the node A/core network equipment determines at least one target node in the second candidate nodes (A and/or B) based on the received first response information, or the source node A/node B/core network equipment based on the received second response information, or the core network equipment based on the received first response information and the second response information, and the target node is used as a sensing node for executing first sensing after switching.

The specific procedure for determining the target node from the second candidate node (a and/or B) is as follows:

case 1: only node B switches.

(1) The node a or the core network device determines a first candidate node B from the second candidate node bs based on the received first response information. Wherein the first candidate node B is a node B agreeing to handover among the second candidate node bs;

(2) The node a or the core network device sends the second parameter configuration information to the first candidate node B. The second parameter configuration information is used for the first candidate node to execute the first perceived perception parameter configuration. Optionally, the second parameter configuration information includes soft handover parameter configuration information;

(3) Node a transmits a first signal, at least a portion of which is reflected by at least 1 perceived tag and received by at least 1 first candidate node B;

(4) The first candidate node B obtains a measurement value of a perception measurement quantity based on the received reflected first signal of the tag;

(5) The first candidate node B feeds back the measured value of the sensing measurement quantity to the node A or the core network equipment, and the node A or the core network equipment judges whether the measured value meets a preset threshold condition or not and determines the target node B from the first candidate node B. Or the first candidate node B automatically judges whether the measured value meets a preset threshold condition or not, the judgment result is fed back to the node A or the core network equipment, and the node A or the core network equipment determines the target node B from the first candidate node B. If all the measured values of the sensing measurement values of the first candidate node bs do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the node A or the core network equipment re-determines a first candidate node B; maintaining the current perception; ending the current perception;

(6) The node a or the core network device sends a handover command to the target node B. The switch command is used for notifying the target sensing node to execute the first sensing operation.

Case 2: only node a switches.

(1) The source node a or the node B or the core network device determines a first candidate node a from the second candidate nodes a based on the received second response information. The first candidate node A is a node A agreeing to switch in the second candidate node A;

(2) The source node a or node B or core network device sends second parameter configuration information to the first candidate node a.

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

(4) The node B obtains a measurement of the perceived measurement based on the received reflected first signal of the tag. Optionally, the node B sends the measured value to the source node a or the core network device; and judging whether the measured value meets a preset threshold condition by the source node A or the node B or core network equipment, and determining the target node A from the first candidate node A. If all the measurement values of the sensing measurement values corresponding to the first candidate nodes a do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the source node A or the node B or the core network equipment re-determines a first candidate node A; maintaining the current perception; ending the current perception;

(5) The source node a or node B or core network device sends a handover command to the target node a.

Case 3: both node a and node B switch.

(1) The core network equipment determines a first candidate node B from second candidate node Bs based on the received first response information, wherein the first candidate node B is the node B agreeing to switch in the second candidate node B; determining a first candidate node A from the second candidate nodes A based on the received second response information, wherein the first candidate node A is the node A agreeing to switch in the second candidate nodes A;

(2) The core network device sends second parameter configuration information to the first candidate node A and the first candidate node B.

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

(5) The first candidate node B feeds back the measured value of the sensing measurement quantity to the core network equipment, the core network equipment judges whether the measured value meets a preset threshold condition, the target node B is determined from the first candidate node B, and the target node A is determined from the first candidate node A. Or the first candidate node B automatically judges whether the measured value meets a preset threshold condition or not, the judgment result is fed back to the core network equipment, the core network equipment determines the target node B from the first candidate node B, and the target node A is determined from the first candidate node A. If all the sensing measurement values of the first candidate node bs do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the core network equipment re-determines a first candidate node A and/or a first candidate node B; maintaining the current perception; ending the current perception;

(6) And the core network equipment sends a switching command to the target node A and the target node B.

Step 5: after determining the target node (a and/or B), the network performs a handover operation, specifically, 2 methods of hard handover and soft handover may be adopted:

case 1: only node B switches.

If a hard switching method is adopted, the source node B finishes the first perception and releases the perception resource; at the same time or after that, the target node B performs a first perception;

if a soft handover method is adopted, the target node B performs first sensing, and after the number of times of obtaining sensing measurement value/sensing result reaches a preset number of times or the first sensing reaches a preset time, the source node B finishes the first sensing and releases sensing resources;

optionally, after receiving the sensing end command sent by the node a or the core network device, the source node B ends the first sensing and releases the sensing resource.

Case 2: only node a switches.

If a hard switching method is adopted, the source node A finishes the first perception and releases the perception resource; at the same time or after that, the target node a makes a first perception;

if a soft handover method is adopted, the target node A performs first sensing, and after the number of times of obtaining sensing measurement value/sensing result reaches a preset number of times or the first sensing reaches a preset time, the source node A finishes the first sensing and releases sensing resources;

Optionally, after receiving the sensing end command sent by the node B or the core network device, the source node a ends the first sensing and releases the sensing resource.

Case 3: both node a and node B switch.

If a hard switching method is adopted, the source node A and the source node B finish the first perception and release the perception resource; simultaneously or after that, the target node A and the target node B perform first perception;

if a soft handover method is adopted, the target node A and the target node B perform first sensing, and after the times of obtaining sensing measurement values/sensing results reach preset times or the first sensing reaches preset time, the source node A and the source node B end the first sensing and release sensing resources;

optionally, after receiving the sensing end command sent by the core network device, the source node a and the source node B end the first sensing and release the sensing resource.

Step 6: optionally, the source node and/or the core network device and/or the sensing tag send at least part of the historical sensing measurement value and/or the historical sensing result, sensing target/region prior information to the target node.

Example two, a first sense mode (node A sends a first signal and node B receives a first signal reflected or scattered by the Tag), senses only the Tag switch

Step 1: the network performs handover measurements.

If the switching is initiated, switching is only performed on the sensing tag:

the node A or the core network equipment sends third request information to at least one second candidate tag, wherein the third request information is a first signal sent by the reflection/scattering node A, wherein the third request information is used for requesting a third request information receiver to serve as a switched sensing tag. Optionally, the third request information may include a soft handover request.

The node a or the core network device sends the third request information to at least one second candidate tag, which can be implemented through a tag checking process: the node A can Select at least part of tags in the first signal coverage range for checking through a Select command. Node a sends third request information to any at least 1 second candidate tag through RN16 and command field of ACK message.

Optionally, before step 2, the node a acquires first information of perceived tags within the first signal coverage, where the first information is used to determine a second candidate tag. The first information acquisition can be realized through a tag checking process: the tag feeds back the first information of the tag to the node a by checking the RN16 in the ACK sent by the node a.

The first information includes at least one of:

1) Position information of candidate tags;

2) Candidate tag antenna panel orientation information;

3) Status information of candidate tags;

4) Perception capability information of candidate tags;

5) The candidate tag can be used for sensing resource information currently;

6) Channel state information of candidate tags.

Step 3: the second candidate tag feeds back second information to the node A, wherein the second information indicates whether the first candidate tag of the node A agrees with the switching or whether the first candidate tag has a switching condition. The second information includes third response information or third rejection information. Specifically:

and agreeing or providing a switching condition, the second candidate tag feeds back third response information to a third request information sender (node A), wherein the third response information indicates the third request information sender, and the third response information sender agrees to switch the first signal sent by the reflection/scattering node A after switching the switching condition.

Optionally, the second candidate tag feeds back suggested third parameter configuration information in the first response information. The third parameter configuration information is used for sensing the sensing nodes (A and B) and executing the sensing parameter configuration of the first sensing by the second candidate tag.

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

And if the switching condition is not agreed or not met, optionally, the second candidate tag sends third rejection information to a third request information sender (node A), wherein the third rejection information indicates the third request information sender, and the third rejection information sender does not participate in sensing.

If all the second candidate tags do not agree to switch or do not have a switching condition, the subsequent processing may be one of the following: i. the node A or the core network equipment re-determines a second candidate tag; maintaining the current perception; ending the current perception;

the second candidate tag feeds back the second information to the node a, which can be realized through a tag checking process: the tag feeds back the second information of the tag to the node a by checking the RN16 in the ACK sent by the node a.

Step 4: and the node A/core network equipment determines at least one target tag from the second candidate tags based on the received third response information, and takes the target tag as a sensing tag which participates in the first sensing after switching.

The specific process of determining the target tag from the second candidate tag is as follows:

(1) The node A or the core network equipment determines a first candidate tag from the second candidate tags based on the received third response information. The first candidate tag is a sensing tag agreeing to switch or having a switching condition in the second candidate tag;

(2) And the node A or the core network equipment sends fourth parameter configuration information to the first candidate tag. The fourth parameter configuration information is used for the first candidate tag to participate in the first perceived sensing parameter configuration. Optionally, the fourth parameter configuration information includes soft handover parameter configuration information;

(3) Node a transmits a first signal, at least a portion of which is reflected by at least 1 first candidate tag and received by node B;

(4) The node B obtains a measurement value of the perception measurement based on the received first signal reflected by the first candidate tag.

(5) And the node B judges whether the measured value meets a preset threshold condition or not, and determines at least 1 target tag from the first candidate tags. Or the node B feeds back the measured value of the sensing measurement quantity to the node A or the core network equipment, and the node A or the core network equipment judges whether the measured value meets a preset threshold condition or not and determines at least 1 target tag from the first candidate tags. Or the node B judges whether the measured value meets a preset threshold condition or not, feeds back a judgment result to the node A or the core network equipment, and determines at least 1 target tag from the first candidate tags. If all the measurement values of the sensing measurement values corresponding to the first candidate tags do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the node A or the core network equipment re-determines a first candidate tag; ii, switching sensing nodes; maintaining the current perception; iv, ending the current perception;

(6) The node A or the core network equipment sends a switching command to the target tag. The switching command is used for notifying the target tag to participate in the first sensing operation.

Step 5: after determining the target tag, the network executes a switching operation, and specifically, 2 methods of hard switching and soft switching can be adopted:

if a hard switching method is adopted, the source tag finishes participating in the first perception and releases the perception resource; at the same time or after that, the target tag participates in the first perception;

if a soft handover method is adopted, the target tag participates in the first sensing, and after the times of obtaining sensing measurement values/sensing results by the node B reach the preset times or the first sensing reaches the preset time, the source tag finishes participating in the first sensing and releases sensing resources;

optionally, after receiving the sensing end command sent by the node a or the core network device to the source tag, the source tag ends participating in the first sensing and releases the sensing resource. The node A or the core network device sends a sensing ending command to the source tag, and the sensing ending command can be realized through a tag checking process: node a sends a sense termination command to any at least 1 source tag through RN16 and command field of the ACK message.

Step 6: optionally, the source tag sends at least part of the measured value of the historical sensing measurement quantity and/or the historical sensing result, the sensing target/region prior information to any one of the node a, the node B and the core network equipment.

Example three, first sensing mode (node A sends first signal and node B receives first signal reflected or scattered by Tag), sensing node and sensing Tag are switched

Step 1: the network performs handover measurements.

If the switching is initiated, at least one sensing node and the sensing tag are switched, and according to the difference of the switching nodes, the switching is specifically divided into one of the following cases:

case 1: only node B switches with the perceived tag.

The node a or the core network device sends first request information to at least one second candidate node B and sends third request information to at least one second candidate tag.

The node a or the core network device sends the third request information to at least one second candidate tag, which can be implemented through a tag checking process: the node A can Select at least part of tags in the first signal coverage range for checking through a Select command. Node a sends third request information to any at least 1 first candidate tag through RN16 and command field of ACK message.

Case 2: only node a switches with the sense tag.

The source node a or the node B or the core network device sends second request information to at least one second candidate node a, and the source node a sends third request information to at least one second candidate tag.

The source node a or the core network device sends the third request information to at least one second candidate tag, which can be implemented through a tag checking process: the source node A can Select at least part of tags in the first signal coverage range for counting through a Select command. The source node a sends third request information to any at least 1 first candidate tag through RN16 and command field of the ACK message.

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

Case 3: node A, node B and sensing tag are all switched.

The core network device sends the first request information to the at least one second candidate node B, sends the second request information to the at least one second candidate node a, and sends the third request information to the at least one second candidate tag.

The core network device sends the third request information to at least one second candidate tag, which can be realized through a tag checking process: the core network equipment instructs the source node A to Select at least part of tags in the first signal coverage range for counting through a Select command. The source node a sends third request information to any at least 1 first candidate tag through RN16 and command field of the ACK message.

Optionally, any one of the first request information, the second request information, and the third request information may include a soft handover request.

The determination of the second candidate node (a and/or B) is the same as example one.

The content of the first information is the same as in example two.

Step 3, the second candidate node decides whether to agree to the handover, and the second candidate tag feeds back the second information to the node a (or the source node a).

Wherein the second candidate node decides whether to agree to a handover: step 3 is the same as example.

Wherein the second candidate tag feeds back second information to node a (or source node a): two steps 3 are illustrated in the same example.

And 4, the node A/core network equipment determines at least one target node in the second candidate node based on the received first response information or the source node A/node B/core network equipment based on the received second response information or the core network equipment based on the received first response information and the second response information, and the target node is used as a sensing node for executing the first sensing after switching.

And the node A/source node A/core network equipment determines at least one target tag from the second candidate tags based on the received third response information, and the target tag is used as a sensing tag which participates in the first sensing after switching.

The specific flow of determining the target node from the second candidate node and the target tag from the second candidate tag is as follows:

case 1: only node B switches with the perceived tag.

(1) The node A or the core network equipment determines a first candidate node B from second candidate node Bs based on the received first response information; determining a first candidate tag from the second candidate tags based on the received third response information;

(2) The node A or the core network equipment sends second parameter configuration information to the first candidate node B and fourth parameter configuration information to the first candidate tag;

(3) Node a transmits a first signal, at least a portion of which is reflected by at least 1 first candidate tag and received by at least 1 first candidate node B;

(4) The first candidate node B obtains a measurement of the perceived measurement based on the received reflected first signal of the tag.

(5) The first candidate node B feeds back the measured value of the sensing measurement quantity to the node A or the core network equipment, the node A or the core network equipment judges whether the measured value meets a preset threshold condition, the target node B is determined from the first candidate node B, and the target tag is determined from the first candidate tag. Or the first candidate node B automatically judges whether the measured value meets a preset threshold condition, feeds back a judgment result to the node A or the core network equipment, determines the target node B from the first candidate node B, and determines the target tag from the first candidate tag. If all the sensing measurement values fed back by the first candidate node B do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the node A or the core network equipment re-determines a first candidate node B and/or a second candidate tag; maintaining the current perception; ending the current perception;

(6) The node A or the core network equipment sends a switching command to the target node B and the target tag.

Case 2: only node a switches with the sense tag.

(1) The source node A or the node B or the core network equipment determines a first candidate node A from second candidate nodes A based on the received second response information; the source node A or the core network equipment determines a first candidate tag from the second candidate tags based on the received third response information;

(2) The source node A or the node B or the core network equipment sends second parameter configuration information to the first candidate node A; the source node A or the core network equipment sends fourth parameter configuration information to the first candidate tag;

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

(4) The node B obtains a measurement of the perceived measurement based on the received reflected first signal of the tag. Optionally, the node B sends the measured value to the source node a or the core network device; the source node A or the node B or the core network equipment judges whether the measured value meets a preset threshold condition, determines the target node A from the first candidate node A, and determines the target tag from the first candidate tag. If all the measured values of the sensing measurement values fed back by the first candidate node a do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the source node A or the node B or the core network equipment re-determines a first candidate node A and/or a first candidate tag; maintaining the current perception; ending the current perception;

(5) And the source node A or the node B or the core network equipment sends a switching command to the target node A and the target tag.

Case 3: node A and node B, the perceived tag are switched.

(1) The core network equipment determines a first candidate node B from second candidate node Bs based on the received first response information; determining a first candidate node A from the second candidate nodes A based on the received second response information; determining a first candidate tag from the second candidate tags based on the received third response information;

(2) The core network equipment sends second parameter configuration information to the first candidate node A and the first candidate node B; sending fourth parameter configuration information to the first candidate tag;

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

(5) The first candidate node B feeds back a measured value of the sensing measurement quantity to the core network equipment, the core network equipment judges whether the measured value meets a preset threshold condition, the target node B is determined from the first candidate node B, the target node A is determined from the first candidate node A, and the target tag is determined from the first candidate tag. Or the first candidate node B automatically judges whether the measured value meets a preset threshold condition or not, and feeds back a judgment result to the node A or core network equipment. If all the measured values of the sensing measurement values of the first candidate node bs do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the core network equipment redetermines any one of the first candidate node A, the first candidate node B and the first candidate tag; maintaining the current perception; ending the current perception;

(6) And the core network equipment sends a switching command to the target node A, the target node B and the target tag.

Step 5: after determining the target node (A and/or B) and the target tag, the network executes a switching operation, and specifically, 2 methods of hard switching and soft switching can be adopted:

case 1: only node B switches with the perceived tag.

If a hard switching method is adopted, the source node B finishes the first perception and releases the perception resources, and the source tag finishes participating in the first perception and releases the perception resources; at the same time or after that, the target node B performs a first perception, and the target tag participates in the first perception;

if a soft handover method is adopted, the target node B performs first perception, and the target tag participates in the first perception, and after the obtained perception measurement value/perception result number reaches the preset number, or the first perception is performed for the preset time, the source node B finishes the first perception, releases the perception resources, and the source tag finishes participating in the first perception, and releases the perception resources;

optionally, after receiving the sensing end command sent by the node a or the core network device, the source node B and/or the source tag end the first sensing and release the sensing resource.

Case 2: only node a switches and perceives tag switches.

If a hard switching method is adopted, the source node A finishes the first perception and releases the perception resources, and the source tag finishes participating in the first perception and releases the perception resources; at the same time or after that, the target node a performs a first perception, and the target tag participates in the first perception;

if a soft handover method is adopted, the target node A performs first perception, and the target tag participates in the first perception, and after the obtained perception measurement value/perception result number reaches the preset number, or the first perception reaches the preset time, the source node A finishes the first perception, releases the perception resources, and the source tag finishes participating in the first perception, and releases the perception resources;

optionally, after receiving the sensing end command sent by the node B or the core network device, the source node a and/or the source tag ends the first sensing and releases the sensing resource.

Case 3: both node a and node B switch.

If a hard switching method is adopted, the source node A and the source node B end the first perception, and release the perception resources, and the source tag ends to participate in the first perception, and release the perception resources; at the same time or after that, the target node A and the target node B perform first perception, and the target tag participates in the first perception;

If a soft handover method is adopted, the target node A and the target node B perform first perception, and the target tag participates in the first perception, and after the obtained perception measurement value/perception result number reaches the preset number or the first perception reaches the preset time, the source node A and the source node B end the first perception, release the perception resource, and the source tag ends participating in the first perception, and release the perception resource;

optionally, at least one of the source node a, the source node B and the source tag ends the first sensing and releases the sensing resource after receiving the sensing end command sent by the core network device.

Wherein, any one of the node A (or the source node A), the node B and the core network device sends a sensing end command to the source tag, which can be realized by a tag checking process: the former sends a sense end command to any at least 1 source tag through the RN16 and command field of the ACK message.

Step 6: optionally, the source node and/or the core network device and/or the source tag send at least part of the historical perception measurement value and/or the historical perception result, the perception target/region prior information to any one of the target node, the node a, the node B and the core network device.

Example four, second sense mode (node A sends the first signal and node A receives the first signal reflected or scattered by the Tag), sense node switch only

Step 1: the network performs handover measurements.

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

or the source node A actively performs handover measurement to acquire a handover measurement report. Optionally, the source node a sends a handover measurement report to the core network device;

optionally, before the source node a performs the handover measurement, the core network device transmits handover measurement configuration information necessary for the handover measurement to the source node a. Alternatively, the handover measurement configuration information is included in a handover measurement request.

The handover measurement configuration information is the same as in example one.

The triggering event of step 1 is the same as example one.

Optionally, the node a reports a handover measurement report to the core network device, and the core network device decides whether to initiate a handover request.

If a handover is initiated, the following operations are performed:

the source node A or the core network equipment sends fourth request information to at least one second candidate node A, wherein the fourth request information is a request fourth request information receiver serving as a switched sensing node, sends a first signal and receives the first signal reflected/scattered by the tag.

Optionally, the fourth request information may include a soft handover request.

The determination of the second candidate node a is the same as example one.

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

and agreeing that the second candidate node A transmits fourth response information to the fourth request information transmitter, wherein the fourth response information indicates that the fourth request information transmitter agrees to switch, transmits a first signal after switching, and receives the first signal reflected/scattered by the tag.

Optionally, the second candidate node a feeds back the suggested first parameter configuration information in the first response information.

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

And if not, optionally, the second candidate node A sends fourth rejection information to a fourth request information sender, wherein the fourth rejection information indicates the fourth request information sender, and the fourth rejection information sender does not sense.

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

step 4: the source node A/core network equipment determines at least one target node in the second candidate nodes based on the received fourth response information, and the target node is used as a sensing node for executing the first sensing after switching.

The specific flow of determining the target node a from the second candidate node a is as follows:

(1) The source node a or the core network device determines the first candidate node a from the second candidate nodes a based on the received fourth response information. The first candidate node A is a node A agreeing to switch in the second candidate node A;

(2) The source node a or the core network device sends second parameter configuration information to the first candidate node a. Optionally, the second parameter configuration information includes soft handover parameter configuration information;

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

(4) The first candidate node A obtains a measurement value of the perception measurement quantity based on the received reflected first signal of the tag.

(5) The first candidate node A feeds back the measured value of the sensing measurement quantity to the source node A or the core network equipment, and the source node A or the core network equipment judges whether the measured value meets a preset threshold condition or not and determines the target node A from the first candidate node A. Or the first candidate node A automatically judges whether the measured value meets a preset threshold condition, the judgment result is fed back to the source node A or the core network equipment, and the source node A or the core network equipment determines the target node A from the first candidate node A. If all the measured values of the sensing measurement values of the first candidate node a do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the source node A or the core network equipment re-determines a first candidate node A; maintaining the current perception; ending the current perception;

(6) The source node a or the core network device sends a handover command to the target node a. The switch command is used for notifying the target sensing node to execute the first sensing operation.

Step 5: after determining the target node a, the network performs a handover operation, specifically, 2 methods of hard handover and soft handover may be adopted:

optionally, after receiving the sensing end command sent by the core network device, the source node a ends the first sensing and releases the sensing resource.

Example five, second sensing mode (node A sends first signal and node A receives first signal reflected or scattered by Tag), sensing only Tag switch

Step 1: the network performs handover measurements.

The triggering event of step 1 is the same as example one.

If the switching is initiated, switching is only performed on the sensing tag:

and the node A or the core network equipment sends third request information to at least one second candidate tag. Optionally, the third request information may include a soft handover request.

The first information is the same as example two.

Step 3: the second candidate tag feeds back second information to the node a, as in step 3 of example two.

(2) And the node A or the core network equipment sends fifth parameter configuration information to the first candidate tag. The fifth parameter configuration information is used for the first candidate tag to participate in the first perceived sensing parameter configuration. Optionally, the fifth parameter configuration information includes soft handover parameter configuration information;

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

(4) The node A obtains a measurement value of the perception measurement quantity based on the received first signal reflected by the first candidate tag.

(5) And the node A judges whether the measured value meets a preset threshold condition or not, and determines at least 1 target tag from the first candidate tags. Or the node A feeds back the measured value of the sensing measurement quantity to the core network equipment, and the core network equipment judges whether the measured value meets a preset threshold condition or not and determines at least 1 target tag from the first candidate tags. Or the node A judges whether the measured value meets a preset threshold condition or not, feeds back a judgment result to the core network equipment, and the core network equipment determines at least 1 target tag from the first candidate tags. If all the measurement values of the sensing measurement values corresponding to the first candidate tags do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the node A or the core network equipment re-determines a first candidate tag; ii, switching sensing nodes; maintaining the current perception; iv, ending the current perception;

if a soft handover method is adopted, the target tag participates in the first sensing, and after the sensing measurement value/sensing result number obtained by the node A reaches the preset number, or the first sensing is carried out for the preset time, the source tag finishes participating in the first sensing, and the sensing resource is released;

Step 6: optionally, the source tag sends at least part of the historical perception measurement values and/or the historical perception results, the perception target/region prior information to the node a and/or the core network device.

Example six, second sensing mode (node A sends first signal and node A receives first signal reflected or scattered by Tag), sensing node and sensing Tag are switched

Step 1: the network performs handover measurements.

The triggering event of step 1 is the same as example one.

If a handover is initiated, the following operations are performed:

the source node a or the core network device sends fourth request information to the at least one second candidate node a and sends third request information to the at least one second candidate tag.

The source node a or the core network device sends the third request information to at least one second candidate tag, which can be implemented through a tag checking process: the source node A can Select at least part of tags in the first signal coverage range for counting through a Select command. The source node a sends third request information to any at least 1 second candidate tag through the RN16 and the command field of the ACK message.

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

Optionally, the third request information and/or the fourth request information may include a soft handover request.

The determination of the first candidate node a is the same as example one.

The first information is the same as example two.

Step 3: the second candidate node A decides whether to agree to the handover or not, and the second candidate tag feeds back second information to the source node A.

Wherein the second candidate node a decides whether to agree to a handover: and the same example is as in step 3.

The second candidate tag feeds back second information to the source node A: two steps 3 are illustrated in the same example.

And the source node A/core network equipment determines at least one target tag from the second candidate tags based on the received third response information, and the target tag is used as a sensing tag participating in the first sensing after switching.

The specific flow of determining the target node A from the second candidate node A and the target tag from the second candidate tag is as follows:

(1) The source node A or the core network equipment determines a first candidate node A from the second candidate node A based on the received fourth response information; determining a first candidate tag from the second candidate tags based on the received third response information;

(2) The source node A or the core network equipment sends second parameter configuration information to the first candidate node A; sending fifth parameter configuration information to the first candidate tag;

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

(5) The first candidate node A feeds back the measured value of the sensing measurement quantity to the source node A or the core network equipment, and the source node A or the core network equipment judges whether the measured value meets a preset threshold condition or not and determines the target node A from the first candidate node A. Or the first candidate node A automatically judges whether the measured value meets a preset threshold condition, the judgment result is fed back to the source node A or the core network equipment, and the source node A or the core network equipment determines the target node A from the first candidate node A. If all the measured values of the sensing measurement values of the first candidate node a do not meet the preset threshold condition, the subsequent processing may be one of the following: i. the source node A or the core network equipment re-determines a first candidate node A and/or a second candidate tag; maintaining the current perception; ending the current perception;

(6) And the source node A or the core network equipment sends a switching command to the target node A and the target tag.

Step 5: after determining the target node A and the target tag, the network executes switching operation, and specifically, 2 methods of hard switching and soft switching can be adopted:

if a hard switching method is adopted, the source node A finishes the first perception and releases the perception resources, and the source tag finishes participating in the first perception and releases the perception resources; at the same time or after that, the target node A performs first perception, and the target tag participates in the first perception;

If a soft handover method is adopted, the target node A performs first perception, the target tag participates in the first perception, and after the obtained perception measurement value/perception result number reaches the preset number, or the first perception is performed for a preset time, the source node A finishes the first perception and releases the perception resource, and the source tag finishes participating in the first perception and releases the perception resource;

optionally, after receiving the sensing end command sent by the core network device, the source node a and/or the source tag end the first sensing and release the sensing resource.

Step 6: optionally, the source node a and/or the core network device and/or the source tag send at least part of the historical sensing measurement value and/or the historical sensing result, sensing target/region prior information to any one of the target node a, the target tag and the core network device.

In the handover processing method provided in the embodiment of the present application, the execution body may be a handover processing apparatus. In the embodiment of the present application, a method for executing a handover processing by a handover processing apparatus is taken as an example, and the handover processing apparatus provided in the embodiment of the present application is described.

As shown in fig. 5, the embodiment of the present application further provides a handover processing apparatus 500, including:

a first sending module 501, configured to send handover request information to at least one second candidate node and/or at least one second candidate backscatter device, where the handover request information is used to request the second candidate node to be a first perceptually switched sensing node, and/or is used to request the second candidate backscatter device to be a first perceptually switched sensing backscatter device; the first perception is a perception of participation of a backscatter device;

a first receiving module 502, configured to receive handover response information sent by at least one second candidate node and/or at least one second candidate backscatter device, where the handover response information is used to indicate that the corresponding second candidate node and/or second candidate backscatter device agrees to serve as a switched sensing node and/or a sensing backscatter device;

A first determining module 503, configured to determine at least one target node and/or at least one target backscatter device from candidate nodes and/or candidate backscatter devices that agree to switch according to the switch response information;

a second sending module 504 is configured to send a handover command to at least one target node and/or at least one target backscatter device, where the handover command is configured to inform the target node to perform the first perception and/or inform the target backscatter device to participate in the first perception.

As an alternative embodiment, the first determining module includes:

the first sub-module is used for sending parameter configuration information to at least one first candidate node and/or at least one first candidate backscattering device according to the switching response information; the parameter configuration information is used for configuring the first candidate node to execute a first perceived perception parameter and/or configuring the first candidate backscattering device to participate in the first perceived perception parameter;

a second sub-module, configured to obtain a measured value of a first perceived measurement that the at least one first candidate node and/or the at least one first candidate backscatter device participates in based on the parameter configuration information;

A third sub-module for determining at least one target node and/or at least one target backscatter device from the at least one first candidate node and/or at least one first candidate backscatter device based on the measurement;

As an alternative embodiment, the first perception comprises: the first sensing node transmits a first signal and the second sensing node receives at least part of the first signal reflected or scattered by the backscatter device;

As an alternative embodiment, the first perception comprises: the third sensing node transmits the first signal, and the third sensing node receives at least part of the first signal reflected or scattered by the back scattering device;

As an alternative embodiment, the apparatus further comprises:

a third sending module, configured to send, to at least one second candidate node and/or at least one second candidate backscatter device, handover request information, where the handover request information is used to request the second candidate node to be a switched sensing node, and/or is used to request the second candidate backscatter device to be a switched sensing backscatter device;

the third receiving module is used for receiving switching response information sent by at least one second candidate node and/or at least one second candidate back scattering device, and the switching response information is used for indicating the corresponding second candidate node and/or the second candidate back scattering device to agree to serve as a switched sensing node and/or a switched sensing back scattering device;

As an alternative embodiment, the apparatus further comprises:

a seventh receiving module, configured to receive rejection information sent by at least one second candidate node and/or at least one second candidate backscatter device, where the rejection information is used to indicate that the corresponding second candidate node and/or second candidate backscatter device does not agree to be a switched sensing node and/or sensing backscatter device;

As an alternative embodiment, the first determining module includes:

a first determining submodule, configured to determine, from the at least one first candidate node and/or the at least one first candidate backscatter device, that the first candidate node and/or the first candidate backscatter device for which the measurement value meets a preset threshold condition is the target node and/or the target backscatter device.

As an alternative embodiment, the apparatus further comprises:

a first execution module, configured to execute a first operation if none of the measured values of the perceived measurement quantities of the at least one first candidate node and/or the at least one first candidate backscatter device satisfy the preset threshold condition; the first operation includes any one of:

stopping the first perception;

continuing to perform the first sensing.

As an alternative embodiment, the third transmitting module includes:

and the third sending submodule is used for sending switching request information to at least one second candidate back-scattering device through the checking process of the first perceived back-scattering device.

As an alternative embodiment, the apparatus further comprises:

a second determining module, configured to determine at least one second candidate backscatter device according to first information of the backscatter devices within the first signal coverage area; the first information includes at least one of:

position information of the backscatter device;

back scattering device antenna panel orientation information;

the movement state information of the backscatter device;

sensing capability information of the backscatter device;

the backscatter device is currently available for making perceived resource information;

channel state information of the backscatter device.

As an alternative embodiment, the apparatus further comprises:

a seventh sending module, configured to send a sensing end command to the first sensing source sensing node and/or the source backscatter device, where the sensing end command is used to instruct the corresponding source sensing node and/or the source backscatter device to end participating in the first sensing.

As an alternative embodiment, the seventh transmitting module includes:

and a seventh sending submodule, configured to send a sensing end command to the source backscatter device through the first sensing backscatter device inventory process.

As an alternative embodiment, the first perceived switching process includes:

the target node and/or the target backscatter device perform a first perception; and the source-aware node and/or the source backscatter device end the first awareness and release the awareness resources;

or,

and the target node and/or the target backscatter device perform first sensing, and after the number of times of obtaining the measured value of the sensing measurement quantity reaches a preset number of times or the first sensing reaches a preset time, the source sensing node and/or the source backscatter device end the first sensing and release the sensing resource.

As an alternative embodiment, the apparatus further comprises:

an eighth sending module, configured to send at least part of the first perceived history information to the target node; wherein the history information includes at least one of:

sensing a historical measurement of the measurement quantity;

historical perception results;

sensing target or region prior information.

In the embodiment of the application, the first device selects at least one target node and/or at least one target backscatter device to be switched according to the measured value of the first perceived measurement quantity of the at least one first candidate node and/or the at least one first candidate backscatter device, which is participated in based on the parameter configuration information, and sends a switching command to the at least one target node and/or the at least one target backscatter device, so as to realize switching of the perceived node and/or the perceived backscatter device.

It should be noted that, the switching processing device provided in the embodiments of the present application is a device capable of executing the above-mentioned switching processing method, and all embodiments of the above-mentioned switching processing method are applicable to the device, and can achieve the same or similar beneficial effects, and repeated descriptions are omitted herein.

As shown in fig. 6, the embodiment of the present application further provides a handover processing apparatus 600, including:

a second receiving module 601, configured to receive switching request information sent by a first device, where the switching request information is used to request the second candidate node to be a first perceptually switched sensing node; the first perception is a perception of participation of a backscatter device;

a third sending module 602, configured to send handover response information to the first device, where the handover response information is used to instruct a corresponding second candidate node to agree to serve as a switched sensing node;

a third receiving module 603, configured to receive parameter configuration information sent by the first device; the parameter configuration information is used for configuring the first candidate node to execute a first perceived perception parameter; the first perception is a perception of participation of a backscatter device;

the first sensing processing module 604 is configured to send and/or receive a first signal corresponding to the first sensing according to the parameter configuration information;

As an alternative embodiment, the apparatus further comprises:

the second receiving module is used for receiving a switching command sent by the first equipment and determining the first candidate node as a target node; the switch command is used for notifying a target node to execute the first perception;

And the first execution module is used for continuing to execute the first perception according to the switching command.

As an alternative embodiment, the apparatus further comprises:

and the first stopping module is used for stopping executing the first perception if the first candidate node does not receive the switching command sent by the first equipment.

In the embodiment of the application, the first device selects at least one target node to be switched according to the measured value of the first perceived measurement quantity of the at least one first candidate node based on the parameter configuration information, and sends a switching command to the at least one target node, so that the perceived node is realized.

As shown in fig. 7, the embodiment of the present application further provides a handover processing apparatus 700, including:

a fourth receiving module 701, configured to receive handover request information sent by a first device, where the handover request information is used to request the second candidate backscatter device to be a first perceptually handed over perceived backscatter device; the first perception is a perception of participation of a backscatter device;

A fourth sending module 702, configured to send handover response information to the first device, where the handover response information is used to instruct a corresponding second candidate backscatter device to agree to be a switched perceived backscatter device;

a fifth receiving module 703, configured to receive parameter configuration information sent by the first device; the parameter configuration information is used for configuring a perception parameter of the first candidate back scattering equipment to participate in first perception; the first perception is a perception of participation of a backscatter device;

the second sensing processing module 704 is configured to perform reflection or scattering of the first signal corresponding to the first sensing according to the parameter configuration information; the node receiving the first signal obtains a measured value of the first perceived sensing measurement according to the received first signal; the measure of perceived measurement is used to assist the first device in determining at least one target backscatter device from the at least one first candidate backscatter device that participates in the first perception.

As an alternative embodiment, the apparatus further comprises:

a fifth receiving module, configured to receive a handover command sent by the first device, and determine that the first candidate backscatter device is a target backscatter device; the switch command is used for notifying a target backscatter device to participate in the first perception;

And the first participation module is used for continuing to participate in the first perception according to the switching command.

As an alternative embodiment, the apparatus further comprises:

and the second stopping module is used for stopping participating in the first perception if the first candidate back scattering equipment does not receive the switching command sent by the first equipment.

In the embodiment of the application, the first device selects at least one target backscatter device to be switched according to the measured value of the first perceived measurement quantity of the at least one first candidate backscatter device based on the parameter configuration information, and sends a switching command to the at least one target backscatter device, so as to realize switching of the perceived backscatter device.

The switching processing device in the embodiment 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 switching processing device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 1 to fig. 4, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Optionally, as shown in fig. 8, the embodiment of the present application further provides a communication device 800, including a processor 801 and a memory 802, where the memory 802 stores a program or an instruction that can be executed on the processor 801, for example, when the communication device 800 is a first device, the program or the instruction implements the steps of the above-mentioned embodiment of the handover processing method when executed by the processor 801, and the same technical effects can be achieved. When the communication device 800 is a candidate node or a candidate backscatter device, the program or the instruction, when executed by the processor 801, implements the steps of the above-described embodiment of the handover processing method, and can achieve the same technical effects, and for avoiding repetition, will not be described herein.

The embodiment of the application also provides first equipment, which comprises a processor and a communication interface, wherein the communication interface is used for sending switching request information to at least one second candidate node and/or at least one second candidate back scattering equipment, and the switching request information is used for requesting the second candidate node to serve as a sensing node after first sensing switching and/or is used for requesting the second candidate back scattering equipment to serve as a sensing back scattering equipment after first sensing switching; the first perception is a perception of participation of a backscatter device; transmitting switching request information to at least one second candidate node and/or at least one second candidate back-scattering device, wherein the switching request information is used for requesting the second candidate node to serve as a sensing node after first sensing switching, and/or is used for requesting the second candidate back-scattering device to serve as a sensing back-scattering device after first sensing switching; the first perception is a perception of participation of a backscatter device; the processor is configured to determine at least one target node and/or at least one target backscatter device from candidate nodes and/or candidate backscatter devices that agree to switch on the handover response information; the communication interface is further configured to send a handover command to at least one target node and/or at least one target backscatter device, the handover command being configured to inform the target node to perform the first perception and/or to inform the target backscatter device to participate in the first perception. Or, the embodiment of the application also provides a node, which comprises a processor and a communication interface, wherein the communication interface is used for receiving switching request information sent by the first device, and the switching request information is used for requesting the second candidate node to serve as a sensing node after the first sensing switching; the first perception is a perception of participation of a backscatter device; transmitting switching response information to the first device, wherein the switching response information is used for indicating that a corresponding second candidate node agrees to serve as a switched sensing node; receiving parameter configuration information sent by first equipment; the parameter configuration information is used for configuring the first candidate node to execute a first perceived perception parameter; the first perception is a perception of participation of a backscatter device; according to the parameter configuration information, sending and/or receiving the first signal corresponding to the first perception is carried out; the node receiving the first signal obtains a measured value of the first perceived sensing measurement according to the received first signal; the measure of perceived measurement is used to assist the first device in determining at least one target node from the at least one first candidate node that performs the first perception. In the case that the first device or the node is a terminal, the terminal embodiment corresponds to the terminal-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. 9 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 900 includes, but is not limited to: at least some of the components of the radio frequency unit 901, the network module 902, the audio output unit 903, the input unit 904, the sensor 905, the display unit 906, the user input unit 907, the interface unit 908, the memory 909, and the processor 910, etc.

Those skilled in the art will appreciate that the terminal 900 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 910 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 9 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, 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 904 may include a graphics processing unit (Graphics Processing Unit, GPU) 9041 and a microphone 9042, with the graphics processor 9041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 907 includes at least one of a touch panel 9071 and other input devices 9072. Touch panel 9071, also referred to as a touch screen. The touch panel 9071 may include two parts, a touch detection device and a touch controller. Other input devices 9072 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, after receiving downlink data from a network side device, the radio frequency unit 901 may transmit the downlink data to the processor 910 for processing; in addition, the radio frequency unit 901 may send uplink data to the network side device. Typically, the radio frequency unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 909 may be used to store software programs or instructions as well as various data. The memory 909 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage 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 909 may include a volatile memory or a nonvolatile memory, or the memory 909 may include both volatile and nonvolatile memories. 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 909 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 910 may include one or more processing units; optionally, the processor 910 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes 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 910.

The radio frequency unit 901 is configured to send handover request information to at least one second candidate node and/or at least one second candidate backscatter device, where the handover request information is used to request the second candidate node to be a first perceptually switched sensing node, and/or is used to request the second candidate backscatter device to be a first perceptually switched sensing backscatter device; the first perception is a perception of participation of a backscatter device; receiving switching response information sent by at least one second candidate node and/or at least one second candidate back scattering device, wherein the switching response information is used for indicating that the corresponding second candidate node and/or the second candidate back scattering device agrees to serve as a switched sensing node and/or a switched sensing back scattering device;

A processor 910, configured to determine at least one target node and/or at least one target backscatter device from candidate nodes and/or candidate backscatter devices agreeing to handover according to the handover reply information;

the radio frequency unit 901 is further configured to send a handover command to at least one target node and/or at least one target backscatter device, where the handover command is configured to inform the target node to perform the first perception and/or inform the target backscatter device to participate in the first perception.

Or,

the radio frequency unit 901 is configured to receive switching request information sent by a first device, where the switching request information is used to request the second candidate node to be a first perceived switched perceived node; the first perception is a perception of participation of a backscatter device; transmitting switching response information to the first device, wherein the switching response information is used for indicating that a corresponding second candidate node agrees to serve as a switched sensing node; receiving parameter configuration information sent by first equipment; the parameter configuration information is used for configuring the first candidate node to execute a first perceived perception parameter; the first perception is a perception of participation of a backscatter device; according to the parameter configuration information, sending and/or receiving the first signal corresponding to the first perception is carried out;

It should be noted that, the terminal provided in the embodiment of the present application is a terminal capable of executing the above-mentioned switching processing method, and all embodiments of the above-mentioned switching processing method are applicable to the terminal, and can achieve the same or similar beneficial effects, and repeated descriptions are omitted herein.

In the case that the first device provided in the embodiment of the present application is a network side device, or the candidate node is a network side device, the embodiment of the present application further provides a network side device. The network side device embodiment corresponds to the network side device 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 effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 10, the network side device 1000 includes: antenna 101, radio frequency device 102, baseband device 103, processor 104, and memory 105. Antenna 101 is coupled to radio frequency device 102. In the uplink direction, the radio frequency device 102 receives information via the antenna 101, and transmits the received information to the baseband device 103 for processing. In the downlink direction, the baseband device 103 processes information to be transmitted, and transmits the processed information to the radio frequency device 102, and the radio frequency device 102 processes the received information and transmits the processed information through the antenna 101.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 103, where the baseband apparatus 103 includes a baseband processor.

The baseband apparatus 103 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 10, where one chip, for example, a baseband processor, is connected to the memory 105 through a bus interface, so as to call a program in the memory 105 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 106, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1000 of the embodiment of the present invention further includes: instructions or programs stored in the memory 105 and executable on the processor 104, the processor 104 invokes the instructions or programs in the memory 105 to perform the methods performed by the modules shown in fig. 5 or fig. 6, and achieve the same technical effects, and are not repeated here.

In the case that the first device is a core network device, the embodiment of the application further provides the core network device. As shown in fig. 11, the core network device 1100 includes: a processor 1101, a network interface 1102, and a memory 1103. The network interface 1102 is, for example, a common public radio interface (common public radio interface, CPRI).

Specifically, the core network device 1100 of the embodiment of the present invention further includes: instructions or programs stored in the memory 1103 and capable of running on the processor 1101, the processor 1101 calls the instructions or programs in the memory 1103 to execute the method executed by each module shown in fig. 5, and achieve the same technical effects, so that repetition is avoided, and therefore, the description is omitted herein.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the embodiment of the switching processing method, 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 application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or an instruction, so as to implement each process of the above embodiment of the switching processing method, and achieve the same technical effect, so that repetition is avoided, and no redundant description is provided 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 above-mentioned embodiments of the handover processing method, and the same technical effects are achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides a communication system, which comprises: a first device operable to perform the steps of the method as described above, a first candidate node operable to perform the steps of the method as described above, and a first candidate backscatter device operable to perform the steps of the method as described above.

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. A handover processing method, comprising:

2. The method according to claim 1, wherein the first device determines at least one target node and/or at least one target backscatter device from candidate nodes and/or candidate backscatter devices agreeing to handover according to the handover reply information, comprising:

3. The method of claim 1, wherein the first perception comprises: the first sensing node transmits a first signal and the second sensing node receives at least part of the first signal reflected or scattered by the backscatter device;

4. The method of claim 1, wherein the first perception comprises: the third sensing node transmits the first signal, and the third sensing node receives at least part of the first signal reflected or scattered by the back scattering device;

5. The method according to claim 1, wherein the method further comprises:

6. The method according to claim 2, wherein the first device determining at least one target node and/or at least one target backscatter device from the at least one first candidate node and/or at least one first candidate backscatter device based on the measurement value, comprises:

7. The method of claim 6, wherein the method further comprises:

Stopping the first perception;

continuing to perform the first sensing.

8. The method of claim 1, wherein the first device transmitting handover request information to at least one second candidate backscatter device, comprises:

9. The method according to claim 1, wherein the method further comprises:

position information of the backscatter device;

back scattering device antenna panel orientation information;

the movement state information of the backscatter device;

sensing capability information of the backscatter device;

channel state information of the backscatter device.

10. The method according to any one of claims 1-9, wherein the method further comprises:

the first device sends a perception ending command to the first perceived source perception node and/or the source back scattering device, wherein the perception ending command is used for indicating the corresponding source perception node and/or the source back scattering device to end participating in the first perception.

11. The method of claim 10, wherein the first device sending a perception end command to the first perceived source backscatter device, comprises:

the first device sends a sensing end command to the source backscatter device through the first sensing backscatter device inventory process.

12. The method of claim 1, wherein the first perceived handoff procedure comprises:

or,

13. The method according to claim 1, wherein the method further comprises:

Sensing a historical measurement of the measurement quantity;

historical perception results;

sensing target or region prior information.

14. A handover processing method, comprising:

15. The method of claim 14, wherein the first perception comprises: the first sensing node transmits a first signal and the second sensing node receives at least part of the first signal reflected or scattered by the backscatter device;

16. The method of claim 14, wherein the first perception comprises: the third sensing node transmits the first signal, and the third sensing node receives at least part of the first signal reflected or scattered by the back scattering device;

17. The method of claim 14, wherein the method further comprises:

and continuing to execute the first sensing according to the switching command.

18. The method of claim 14, wherein the method further comprises:

19. A handover processing method, comprising:

20. The method of claim 19, wherein the method further comprises:

21. The method of claim 19, wherein the method further comprises:

22. A switching processing apparatus, comprising:

23. A first 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 handover processing method of any one of claims 1 to 13.

24. A switching processing apparatus, comprising:

the second receiving module is used for receiving switching request information sent by the first equipment, wherein the switching request information is used for requesting a second candidate node to serve as a sensing node after the first sensing switching; the first perception is a perception of participation of a backscatter device;

the third receiving module is used for receiving the parameter configuration information sent by the first equipment; the parameter configuration information is used for configuring a first candidate node to execute a first perceived perception parameter; the first perception is a perception of participation of a backscatter device;

25. A node 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 handover processing method of any of claims 14 to 18.

26. A switching processing apparatus, comprising:

a fourth receiving module, configured to receive switching request information sent by the first device, where the switching request information is used to request the second candidate backscatter device to serve as a perceived backscatter device after the first perceived switching; the first perception is a perception of participation of a backscatter device;

A fifth receiving module, configured to receive parameter configuration information sent by the first device; the parameter configuration information is used for configuring a first candidate backscattering device to participate in a first perceived perception parameter; the first perception is a perception of participation of a backscatter device;

27. 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 handover processing method of any one of claims 19 to 21.

28. 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 steps of the handover processing method according to any one of claims 1-13, or the steps of the handover processing method according to any one of claims 14 to 18, or the steps of the handover processing method according to any one of claims 19 to 21.