WO2024051619A1

WO2024051619A1 - Switching processing method and apparatus, and device

Info

Publication number: WO2024051619A1
Application number: PCT/CN2023/116645
Authority: WO
Inventors: 李健之; 丁圣利; 姜大洁
Original assignee: 维沃移动通信有限公司
Priority date: 2022-09-09
Filing date: 2023-09-04
Publication date: 2024-03-14
Also published as: CN117729590A

Abstract

The present application relates to the field of integrated sensing and communications, and discloses a switching processing method and apparatus, and a device. The method comprises: a first device sends switching request information to at least one second candidate node and/or at least one second candidate backscatter device; the first device receives switching response information sent by the second candidate node and/or the second candidate backscatter device, the switching response information being used for indicating that the corresponding second candidate node and/or second candidate backscatter device agree to serve as a sensing node and/or a sensing backscatter device after switching; according to the switching response information, the first device determines a target node and/or a target backscatter device from candidate nodes and/or candidate backscatter devices that agree to switch; the first device sends a switching command to at least one target node and/or at least one target backscatter device, the switching command being used for notifying the target node to execute first sensing and/or notifying the target backscatter device to participate in the first sensing.

Description

Switch processing methods, devices and equipment

Cross-references to related applications

This application claims priority from Chinese Patent Application No. 202211105490.2 filed in China on September 9, 2022, the entire content of which is incorporated herein by reference.

Technical field

This application belongs to the field of communication perception integration technology, and specifically relates to a handover processing method, device and equipment.

Background technique

Integrated Sensing and Communication (ISAC) has the potential to integrate wireless sensing into mobile networks, here called Perceptive Mobile Networks (PMNs). Sensing mobile networks are capable of providing both communication and wireless sensing services, and are expected to become a ubiquitous wireless sensing solution due to their large broadband coverage and strong infrastructure. Perceptual mobile networks can be widely used in communication and sensing in the fields of transportation, communications, energy, precision agriculture, and security. It can also provide complementary sensing capabilities to existing sensor networks, with unique day and night operation capabilities and the ability to penetrate fog, foliage and even solid objects.

Point-to-point backscatter (BSC) technology has been widely used in radio frequency identification (Radio Frequency Identification, RFID) applications. Passive RFID tags can report to readers that interrogate in the near field (usually a few centimeters to one meter). Identification (ID). In its early stages, IoT mainly consisted of RFID devices used in logistics and inventory management. However, in the future, the 6th generation mobile communications technology (6G) Internet of Things is expected to connect tens of billions of devices, complete more complex and functional tasks, and have a global impact. Synaesthesia integration can give rise to a series of new 6G applications, and synaesthesia integration based on low-power communication equipment will also become an important application scenario of 6G. Wireless sensing based on Radio Frequency Identification (RFID) and Backscatter Communications technology, compared with device-free wireless sensing, can not only achieve basic sensing functions, but also obtain Additional perceptual target information is expected to further enhance perceptual/synaesthetic integration performance.

Currently, wireless sensing based on low-power backscatter devices (such as radio frequency identification tags (RFID tags) or backscatter tags) in (cellular) mobile communication networks is one of the important developments in synaesthesia integration. trend, with broader application scenarios. However, there are currently no clear regulations on how to switch sensing nodes and/or sensing backscattering devices under this technology.

Contents of the invention

Embodiments of the present application provide a switching processing method, device and equipment, which can solve the problem of how to switch sensing nodes and/or sensing backscattering devices in wireless sensing in which backscattering devices are not specified in related technologies.

The first aspect provides a switching processing method, including:

The first device sends switching request information to at least one second candidate node and/or at least one second candidate backscattering device, where the switching request information is used to request the second candidate node to serve as the first sensing switch after the switching. A sensing node, and/or, configured to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing is the sensing in which the backscattering device participates;

The first device receives switching response information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the switching response information is used to indicate the corresponding second candidate node and/or the second candidate The backscattering device agrees to serve as the sensing node and/or the sensing backscattering device after switching;

The first device determines at least one target node and/or at least one target backscattering device from the candidate nodes and/or candidate backscattering devices that agree to the handover based on the handover response information;

The first device sends a switching command to at least one target node and/or at least one target backscattering device, where the switching command is used to notify the target node to perform the first sensing, and/or to notify the target backscattering device to participate. The first perception.

The second aspect provides a switching processing method, including:

The second candidate node receives the switching request information sent by the first device, and the switching request information is used to request the second candidate node to serve as the sensing node after the first sensing switch; the first sensing is a backscattering device participating perception;

The second candidate node sends switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate node agrees to serve as the sensing node after switching;

The first candidate node receives the parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters for the first candidate node to perform first sensing; the first sensing is sensing involving the backscattering device; The first candidate node includes: a candidate node among the second candidate nodes that agrees to switch;

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

Wherein, the node receiving the first signal obtains the measured value of the first perceived perceptual measurement quantity according to the received first signal; the measured value of the perceptual measurement quantity is used to assist the first device to obtain the perceptual measurement quantity from the first signal. At least one target node for performing the first sensing is determined among at least one first candidate node.

The third aspect provides a switching processing method, including:

The second candidate backscattering device receives switching request information sent by the first device, and the switching request information is used to request the second candidate backscattering device to serve as the sensing backscattering device after the first sensing switch; the first sensing backscattering device Perception involves the participation of backscattering devices;

The second candidate backscattering device sends switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate backscattering device agrees to serve as the switched sensing backscattering device;

The first candidate backscattering device receives parameter configuration information sent by the first device; the parameter configuration information is used to configure Sensing parameters that set the first candidate backscattering device to participate in the first perception; the first perception is the perception in which the backscattering device participates; the first candidate backscattering device includes: a second candidate backscattering device Candidate backscattering devices that agree to be switched;

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 the first signal according to the received first signal. A measurement value of a sensing measurement quantity of the first perception; the measurement value of the perception measurement quantity is used to assist the first device in determining at least one participating device in the first perception from the at least one first candidate backscattering device. Target backscatter equipment.

In a fourth aspect, a switching processing device is provided, including:

A first sending module, configured to send switching request information to at least one second candidate node and/or at least one second candidate backscattering device, where the switching request information is used to request the second candidate node to serve as a first sensing switch The subsequent sensing node, and/or, is used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing is the sensing in which the backscattering device participates;

A first receiving module configured to receive switching response information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the switching response information is used to indicate the corresponding second candidate node and/or the third candidate node. The two candidate backscattering devices agree to serve as sensing nodes and/or sensing backscattering devices after switching;

A first determination 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, based on the handover response information;

A second sending module, configured to send a switching command to at least one target node and/or at least one target backscattering device, where the switching command is used to notify the target node to perform the first sensing, and/or to notify the target backscattering device. The device participates in said first perception.

In a fifth aspect, a first device is provided. The first device includes a processor and a memory. The memory stores a program or instructions executable on the processor. The program or instructions are executed by the processor. When implementing the steps of the method described in the first aspect.

In a sixth aspect, a first device is provided, including a processor and a communication interface, wherein the communication interface is used to send switching request information to at least one second candidate node and/or at least one second candidate backscattering device. , the switching request information is used to request the second candidate node to serve as the sensing node after the first sensing switch, and/or to request the second candidate backscattering device to serve as the sensing backscattering device after the first sensing switch. to the scattering device; the first perception is a perception in which the backscattering device participates; and to at least one second candidate node and/or at least one second candidate backscattering device, sending switching request information, where the switching request information is used to request The second candidate node serves as the sensing node after the first sensing switch, and/or is used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing For the perception of backscattering device participation; the processor is used in the handover response information to determine at least one target node and/or at least one target backscattering device from candidate nodes and/or candidate backscattering devices that agree to handover ; The communication interface is also used to send a switching command to at least one target node and/or at least one target backscatter device, the switching command is used to notify the target node to perform the first sensing, and/or to notify the target reverse Scattering devices participate in said first perception.

In a seventh aspect, a switching processing device is provided, including:

The second receiving module is configured to receive switching request information sent by the first device, where the switching request information is used to request the second candidate node to serve as the sensing node after the first sensing switch; the first sensing is backscattering Perception of device involvement;

A third sending module, configured to send switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate node agrees to serve as the sensing node after switching;

The third receiving module is used to receive parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters of the first candidate node to perform first sensing; the first sensing is the participation of backscattering equipment perception;

A first perception processing module, configured to send and/or receive the first signal corresponding to the first perception according to the parameter configuration information;

In an eighth aspect, a node is provided. The node includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in the second aspect.

In a ninth aspect, a node is provided, including a processor and a communication interface, wherein the communication interface is used to receive switching request information sent by the first device, and the switching request information is used to request the second candidate node as The sensing node after the first sensing switch; the first sensing is sensing involving the backscattering device; sending switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate node agrees to act as The switched sensing node; receives parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters of the first candidate node to perform first sensing; the first sensing is a backscattering device participating Sensing; sending and/or receiving the first signal corresponding to the first sensing according to the parameter configuration information;

In a tenth aspect, a switching processing device is provided, including:

The fourth receiving module is configured to receive switching request information sent by the first device, where the switching request information is used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing backscattering device Perception involves the participation of backscattering devices;

A fourth sending module, configured to send switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate backscattering device agrees to serve as the switched sensing backscattering device;

The fifth receiving module is used to receive parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters of the first candidate backscattering device to participate in the first sensing; the first sensing is reverse perception of involvement of scattering devices;

The second perception processing module is configured to perform 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 the first signal according to the received first signal. A measured value of a perceived sensing measurement quantity; the measured value of the sensing measurement quantity is used to assist the first device in determining at least one target participating in the first sensing from the at least one first candidate backscattering device Backscatter equipment.

In an eleventh aspect, a backscattering device is provided, the backscattering device comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions being processed by the When the processor is executed, the steps of the method as described in the third aspect are implemented.

In a twelfth aspect, a backscattering device is provided, including a processor and a communication interface, wherein the communication interface is used to receive switching request information sent by the first device, and the switching request information is used to request the second device. The candidate backscattering device serves as the sensing backscattering device after the first sensing switch; the first sensing is the sensing in which the backscattering device participates; and the switching response information is sent to the first device, and the switching response information is used to Instruct the corresponding second candidate backscattering device to agree to serve as the sensing backscattering device after switching; receive parameter configuration information sent by the first device; the parameter configuration information is used to configure the first candidate backscattering device to participate in the first A sensing parameter of sensing; the first sensing is sensing involving backscattering equipment; performing reflection or scattering of the first signal corresponding to the first sensing according to the parameter configuration information; receiving the first signal The node obtains a measured value of the first perceived perceptual measurement quantity according to the received first signal; the measured value of the perceptual measurement quantity is used to assist the first device from the at least one first candidate backscattering device. At least one target backscattering device participating in the first sensing is determined.

In a thirteenth aspect, a communication system is provided, including: a first device, a first candidate node, and a first candidate backscatter device, the first device being operable to perform the steps of the method described in the first aspect, The first candidate node may be used to perform the steps of the method as described in the second aspect, and the first candidate backscattering device may be used to perform the steps of the method as described in the third aspect.

In a fourteenth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented. The steps of the method as described in the second aspect, or the steps of implementing the method as described in the third aspect.

In a fifteenth aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the method described in the first aspect. method, or implement the method as described in the second aspect, or implement the method as described in the third aspect.

In a sixteenth aspect, a computer program/program product is provided, 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 as described in the first aspect The steps of the method, or the steps of implementing the method as described in the second aspect, or the steps of implementing the method as described in the third aspect.

In this embodiment of the present application, the first device serves as the response information of the switched sensing node and/or sensing backscattering device based on the consent fed back by at least one second candidate node and/or at least one second candidate backscattering device, Select at least one target node and/or at least one target backscattering device to be switched, and send a switching command to the at least one target node and/or at least one target backscattering device, thereby realizing sensing nodes and/or sensing backscattering Device switching.

Description of the drawings

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied;

Figure 2 shows one of the step flow charts of the handover processing method provided by the embodiment of the present application;

Figure 3 shows the second step flow chart of the handover processing method provided by the embodiment of the present application;

Figure 4 shows the third step flow chart of the handover processing method provided by the embodiment of the present application;

Figure 5 shows one of the structural schematic diagrams of the switching processing device provided by the embodiment of the present application;

Figure 6 shows the second structural schematic diagram of the switching processing device provided by the embodiment of the present application;

Figure 7 shows the third structural schematic diagram of the switching processing device provided by the embodiment of the present application;

Figure 8 shows a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 9 shows a schematic structural diagram of a terminal provided by an embodiment of the present application;

Figure 10 shows a schematic structural diagram of a network side device provided by an embodiment of the present application;

Figure 11 shows a schematic structural diagram of the core network equipment provided by the embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

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

Figure 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 side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, or a super mobile personal computer. (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (VR) equipment, robots, wearable devices (Wearable Device) , vehicle user equipment (VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side equipment 12 may include access network equipment or core network equipment, where the access network equipment may also be called wireless access network equipment, radio access network (Radio Access Network, RAN), radio access network function or wireless access network unit. Access network equipment can include base stations, Wireless Local Area Network (WLAN) access points or WiFi nodes, etc. The base station can be called Node B, Evolved Node B (eNB), access point, base transceiver station ( Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B-node, home evolved B-node, sending and receiving point ( Transmission Reception Point (TRP) or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the NR system is used The base station is introduced as an example, and the specific type of base station is not limited. Core network equipment may include but is not limited to at least one of the following: 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 Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Services Discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data warehousing (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration ( Centralized network configuration, CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of this application, only the core network equipment in the NR system is used as an example for introduction, and the specific type of the core network equipment is not limited.

The handover processing method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios.

In a mobile communication network, a base station (including one or more transmission and reception points on the base station) Reception Point (TRP), user equipment (User Equipment, UE) (including one or more sub-arrays/panels (Panel) on the UE), can be used as sensing nodes participating in sensing/synaesthesia integrated services. Typical UEs include mobile phone terminals, portable tablet computers, etc. By sending and receiving first signals between nodes, a certain area or a certain physical target can be sensed. The first signal may be a signal that does not contain transmission information, such as existing LTE/NR synchronization and reference signals, including synchronization signals and physical broadcast channel (Synchronization Signal and PBCH block, SSB) signals, channel state information reference signals ( Channel State Information-Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS), Channel Sounding Reference Signal (SRS), Positioning Reference Signal (PRS), Phase Tracking Reference signal (Phase Tracking Reference Signal, PTRS), etc.; it can also be single-frequency continuous wave (CW), frequency modulated continuous wave (Frequency Modulated CW, FMCW) commonly used in radar, and ultra-wideband Gaussian pulse, etc.; it can also be new The designed dedicated signal has good correlation characteristics and low peak-to-average power ratio, or the newly designed synaesthesia integrated signal not only carries certain information but also has good perceptual performance. For example, the new signal is spliced/combined/superimposed on at least one dedicated sensing signal/reference signal and at least one communication signal in the time domain and/or frequency domain.

Depending on whether the sensing nodes are the same device, it can be divided into two sensing methods: A sending and B receiving, and A spontaneously receiving. "A sends and B receives" means that the sensing signal is sent and received by two devices, that is, sensing node A and sensing node B are not the same device and are physically separated; "A spontaneously receives" means that the sensing signal is sent and received by the same device. Execution, sensing node A senses by receiving the signal echo sent by itself.

In wireless sensing involving backscattering equipment (i.e., electronic tags), the backscattering equipment may be coupled to the sensing target, that is, the backscattering device may be installed on the sensing target; it may also be reversed The scattering device is decoupled from the sensing target, that is, the backscattering device is deployed in the environment around the sensing target. During the sensing process, the sensing node receives at least part of the first signal reflected/scattered by the backscattering device participating in sensing, and obtains a measurement value/sensing result of the sensing measurement quantity. The number of backscattering devices participating in sensing can be greater than or equal to 1.

In this embodiment of the present application, a node that sends and/or receives a sensing signal (ie, the first signal) is called a sensing node, and the sensing node may be a base station or a UE. The device that determines the sensing node and/or sensing backscattering device after handover can be a sensing node (such as a base station or UE), or a core network device (such as a sensing function network element (Sensing Function, SF), access and mobile Management function (Access and Mobility Management Function, AMF), aware application server in the core network, etc.).

It should be noted that in the embodiment of this application, the sensing node before switching is called the source node, the node after switching is called the target node, and the node that may be selected as the target node is called the candidate node. At the same time, the sensing backscattering device before switching is called the source backscattering device, the sensing backscattering device after switching is called the target backscattering device, and the backscattering device that may be selected as the target backscattering device is called Candidate backscattering devices.

As shown in Figure 2, this embodiment of the present application provides a handover processing method, which includes:

Step 201: The first device sends switching request information to at least one second candidate node and/or at least one second candidate backscattering device, where the switching request information is used to request the second candidate node to serve as the first sensing device. After switching The sensing node, and/or, is used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing is the sensing in which the backscattering device participates;

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

Step 202: The first device receives switching response information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the switching response information is used to indicate the corresponding second candidate node and/or The second candidate backscatter device agrees to serve as a post-switch sensing node and/or sensing backscatter device;

Step 203: The first device determines at least one target node and/or at least one target backscattering device from the candidate nodes and/or candidate backscattering devices that agree to the handover based on the handover response information;

Step 204: The first device sends a switching command to at least one target node and/or at least one target backscattering device. The switching command is used to notify the target node to perform the first sensing, and/or to notify the target backscattering device. Scattering devices participate in said first perception.

Optionally, the first candidate node that has not received the switching command stops performing the first sensing, and/or the first candidate backscattering device that has not received the switching command stops participating in the first sensing.

Optionally, the handover request information may include a soft handover request or a hard handover request. Wherein, the hard handover includes: the target node and/or the target backscattering device performs the first sensing; and the source sensing node and/or the source backscattering device ends the first sensing and releases the sensing resources; the soft handover includes: the target node and/or the source backscattering device Or the target backscattering device performs the first sensing. After the number of measurements of the sensing measurement quantity is obtained for the preset number of times or the first sensing is performed for the preset time, the source sensing node and/or the source backscattering device ends the first sensing. and release sensing resources.

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) Second candidate node antenna panel orientation information;

3) The status information of the second candidate node (including moving speed, moving direction, time period of remaining stationary/moving, etc.);

4) Sensing capability information of the second candidate node (including sensing coverage, maximum bandwidth available for sensing, maximum duration of sensing services, supported sensing signal types and frame formats, UE antenna array information (array type, antenna number, array aperture, antenna polarization characteristics, array element gain and directivity characteristics, etc.));

5) The resource information currently available for sensing by the second candidate node (including time resources (number of symbols, number of time slots, number of frames, etc.), frequency resources (number of Resource Block (RB), number of Resource Element (RE), total Bandwidth, available frequency band location, etc.), antenna resources (number of antennas/antenna sub-arrays), phase modulation resources (number of hardware phase shifters), orthogonal code resources (length and number of orthogonal codes, etc.);

6) Channel state information of the second candidate node (including channel transfer function/channel impulse response of at least one communication link, channel quality indicator (Channel Quality Indicator, CQI), precoding matrix indicator (Precoding Matrix Indicator, PMI), At least one of CSI-RS resource indication, SSB resource indication, layer indicator (Layer Indicator, LI), rank indicator (Rank Indicator, RI), and layer 1 reference signal received power (Layer 1 reference signal received power, L1-RSRP)) .

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

The first device sends parameter configuration information to at least one first candidate node and/or at least one first candidate backscattering device according to the handover response information; the parameter configuration information is used to configure the first candidate node to execute the first a sensing parameter for sensing and/or sensing parameters for configuring the first candidate backscattering device to participate in the first sensing;

The first device obtains a measurement value of a first sensing sensing measurement quantity in which the at least one first candidate node and/or the at least one first candidate backscattering device participates based on the parameter configuration information;

The first device determines 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;

Wherein, the first candidate node includes: a candidate node among the second candidate nodes that agrees to switch; and/or the first candidate backscatter device includes: a candidate backscatter device among the second candidate backscatter devices that agrees to switch. Scattering equipment.

Optionally, based on at least one measurement value of at least one perceptual measurement quantity, further calculation can obtain a perceptual result; or, at least one measurement value of at least one perceptual measurement quantity can also be called a perceptual result, which is not specifically limited here. ;

In one implementation manner, the first device obtains the actual measurement value of the perceptual measurement quantity; in another implementation manner, the first device obtains the judgment result of whether the actual measurement value of the perceptual measurement quantity meets the preset threshold.

Optionally, in a 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; or, if only the sensing backscattering device is switched, the first device only needs to select At least one target backscattering device; or, if both sensing nodes and sensing backscattering devices are switched, the first device needs to select at least one target node and at least one target backscattering device.

It should be noted that the perceptual measurement quantities mentioned in the embodiments of this application can be divided into the following four categories:

a) The first-level measurement quantity (received signal/original channel information), including: received signal/channel response complex results, amplitude/phase, I channel/Q channel and its operation results (operations include addition, subtraction, multiplication and division, matrix addition, subtraction and multiplication , matrix transposition, trigonometric relationship operations, square root operations, power operations, etc., as well as threshold detection results, maximum/minimum value extraction results of the above operation results, etc.; operations also include Fast Fourier Transform (FFT)/ Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT)/Inverse Discrete Fourier Transform (IDFT), Two-dimensional Fast Fourier Transform (Two -Dimensional Fast Fourier Transform (2D-FFT), Three-Dimensional Fast Fourier Transform (3D-FFT), matched filtering, autocorrelation operation, wavelet transform and digital filtering, etc., as well as the threshold of the above operation results Detection results, maximum/minimum value extraction results, etc.);

b) Second-level measurement quantities (basic measurement quantities), including: delay, Doppler, angle, intensity, and their multi-dimensional combination representation;

c) Third-level measurement quantities (basic attributes/status), including: distance, speed, orientation, spatial position, and acceleration;

d) The fourth level measurement quantity (advanced attributes/status), including: target existence, trajectory, movement, expression, vital signs, quantity, imaging results, weather, air quality, shape, material, composition.

Optionally, the above-mentioned perceptual measurement quantity also includes corresponding label information:

Perception signal identification information;

Perceptual measurement configuration identification information;

Sensing business information (such as sensing business ID);

Data subscription ID;

Measurement purposes (communication, perception, synaesthesia);

time information;

Sensing node information (such as UE ID, node location, device orientation);

Sensing link information (such as sensing link sequence number, sending and receiving node identification);

Measurement quantity description information (form, such as amplitude value, phase value, complex value combining amplitude and phase; resource type, such as time domain measurement results, frequency domain resource measurement results);

Measurement quantity indicator information (such as Signal-to-Noise Ratio (SNR), perceived SNR).

It should be further noted that the parameter configuration information mentioned in the embodiments of the present application is perception-related parameter configuration information, where the perception-related parameter configuration information includes at least one of the following (for simplicity of expression, the following description will be reversed: Scattering equipment is referred to as Tag):

Waveform types, such as Orthogonal Frequency Division Multiplexing (OFDM), SC-FDMA, Orthogonal Time Frequency Space (OTFS), FMCW, pulse signals, etc.;

Subcarrier spacing: For example, the subcarrier spacing of OFDM system is 30KHz;

Guard interval: the time interval from the time when the signal ends sending to the time when the latest echo signal of the signal is received; this parameter is proportional to the maximum sensing distance; for example, it can be calculated by 2d _max /c, d _max is the maximum Sensing distance (belonging to sensing requirements), for example, for spontaneous self-received sensing signals, d _max represents the maximum distance from the sensing signal transceiving point to the signal transmitting point; in some cases, OFDM signal cyclic prefix (CP) can play a role to the role of the minimum guard interval;

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

Burst duration: This parameter is inversely proportional to the rate resolution (belongs to sensing requirements). This parameter is the time span of the sensing signal, mainly for calculating the Doppler frequency offset; this parameter can be calculated by c/(2f _c Δv ) is calculated; where Δv is the velocity resolution; f _c is the carrier frequency of the sensing signal;

Time domain interval: This parameter can be calculated by c/(2f _c v _range ); where v _range is the maximum rate minus the minimum speed (belonging to the sensing requirements); this parameter is the time between two adjacent sensing signals interval;

Transmit signal power, for example, take a value every 2dBm from -20dBm to 23dBm;

Signal format, such as SRS, DMRS, PRS, etc., or other predefined signals, as well as related sequence format and other information;

Signal direction; such as sensing signal direction or beam information;

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

Frequency resources include the center frequency point of the sensing signal, bandwidth, RB or subcarrier, A node (Point A), starting bandwidth position, etc.;

Quasi-Co location (QCL) relationship, for example, the sensing signal includes multiple resources, each resource is associated with an SSB QCL, and the QCL includes Type A, B, C or D;

Antenna configuration information of the sensing node (base station or UE), including at least one of the following:

Antenna element ID or antenna port ID used to send and/or receive sensing signals;

Panel ID + array element ID used to send and/or receive sensing signals;

The position information of the antenna element used to send and/or receive sensing signals relative to a local reference point on the antenna array (can use Cartesian coordinates (x, y, z) or spherical coordinates express);

The position information of the panel used to send and/or receive sensing signals relative to a local reference point on the antenna array (can use Cartesian coordinates (x, y, z) or spherical coordinates Represented), and the position information of these antenna elements used to send sensing signals in the selected panel relative to a unified reference point in the panel (such as the center point of the panel) (can use Cartesian coordinates (x, y, z) or spherical coordinate express);

The bitmap information of the antenna array element. For example: the bitmap uses "1" to indicate that the array element is selected for sending and/or receiving sensing signals, and uses "0" to indicate that the array element is not selected (and vice versa);

The bitmap information of the array panel. For example: the bitmap uses "1" to indicate that the panel is selected for sending and/or receiving sensing signals, and uses "0" to indicate that the array element is not selected (the reverse can also be true). And the bitmap information of these array elements in the selected panel;

Threshold information is a threshold value used for at least one of the source node, the core network device, and the candidate node to determine whether the obtained sensing measurement value meets the first condition. For different candidate nodes and/or candidate tags, the threshold values may be different; for any candidate node and/or candidate tag, the sensing measurement quantity and its corresponding threshold value may be greater than 1; the first condition is: obtaining sensing The corresponding candidate node/candidate tag of the measurement value can be used as the target node/target tag;

The backscatter tag ID involved in sensing and its associated information related to the sensing signal configuration. The tag ID here is not limited to the RFID Evolved Packet Core (EPC), but can also be a new device. ID;

Tag working bandwidth, working frequency, number of channels, and subcarrier frequencies corresponding to each channel;

The initial phase of the sensed signal, including the initial phase of the signal on each channel (applicable to tags based on phase modulation);

Tag antenna configuration information, including at least one of the following: tag antenna element ID or tag antenna port ID used to receive and send sensing signals, tag panel ID+array element ID used to receive and send sensing signals, tag antenna element ID used to receive and send sensing signals, The position information of the tag antenna element that senses the signal relative to a local reference point on the antenna array (can be calculated using Descartes Coordinates (x, y, z) or spherical coordinates represents), the position information of the tag panel used to receive and transmit sensing signals relative to a local reference point on the antenna array (can use Cartesian coordinates (x, y, z) or spherical coordinates Represented), and the position information of these antenna elements used to send sensing signals in the selected panel relative to a unified reference point in the panel (such as the center point of the panel) (can use Cartesian coordinates (x, y, z) or spherical coordinate indicates), the bitmap information of the tag antenna element (for example: the bitmap uses "1" to indicate that the array element is selected for receiving and transmitting sensing signals, and uses "0" to indicate that the array element is not selected (or vice versa)), The bitmap information of the tag array panel (for example: the bitmap uses "1" to indicate that the panel is selected for receiving and transmitting sensing signals, and uses "0" to indicate that the array element is not selected (it can also be reversed)) and the contents of these selected panels The array element bitmap information;

The position information of the local reference point of the Tag antenna array relative to at least one sensing node (base station or UE) (can use Cartesian coordinates (x, y, z) or spherical coordinates express);

The modulation mode indication information applicable to the tag indicates that the modulation mode adopted by the tag includes: amplitude modulation mode, phase modulation mode, frequency modulation, and any combined modulation mode of at least two of the above modes, such as amplitude-phase modulation, etc.;

Tag amplitude modulation configuration information, that is, the amplitude configuration information used to adjust the reflected signal by the tag, including the amplitude range of continuous amplitude modulation, or the discrete state corresponding to discrete amplitude modulation;

Tag phase modulation configuration information, that is, the phase configuration information used to adjust the reflected signal by the tag, including the phase range of continuous phase modulation, or the discrete state corresponding to discrete phase modulation

Tag frequency modulation configuration information, that is, frequency configuration information used for tag adjustment of reflected signals, including the frequency range of continuous frequency modulation, or the discrete state corresponding to discrete frequency modulation;

The signal modulation method involved in the tag communication part of the sensing signal includes Double Side Band Amplitude-shift keying (DSB-ASK) and Single Side Band Amplitude-shift keying. SSB-ASK), Phase-reversal ASK (PR-ASK), Frequency-shift keying (FSK), Binary Phase Shift Keying (BPSK), Positive Quadrature Phase Shift Keying (QPSK), Quadrature Amplitude Modulation (QAM), etc.

The sensing signal involves the data encoding method and frame format of the tag communication part. For example, the coding method that needs to be determined may be binary coding, Manchester code, Bi-Phase Space Coding (FM0), delayed modulation code (The Miller code), non-return-to-zero code (Non-return- to-zero Code, NRZ), Bipolar Nonreturn-to-zero Coding (BNRZ), Non-return Zero-Inverted, NRZ-I), pulse width coding, etc. are currently Adopt and may adopt digital coding for backscatter communication in the future; the frame format that needs to be determined includes the determination of the leader preamble or frame synchronization (Frame Synchronization, frame-sync), etc.;

Tag encryption algorithm type, such as 16-bit cyclic redundancy check (Cyclic Redundancy Check 16, CRC16) or 24-bit cyclic redundancy check (Cyclic Redundancy Check 24, CRC24), etc.;

The type of Tag channel coding forward error correction (FEC) and the corresponding coding rate.

In an optional embodiment of the present application, the first sensing includes: a first sensing node sends a first signal, and a second sensing node receives at least part of the first signal reflected or scattered by the backscattering device;

Wherein, the at least one first candidate node includes: 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 is that the first sensing node sends a first signal and the second sensing node receives the first signal, and at least part of the received signal is the first signal reflected/scattered by the backscattering device. The first sensing switching in this scenario includes: only sensing node switching, only sensing backscattering device switching, and switching of both sensing nodes and sensing backscattering devices;

The switching of sensing nodes includes: switching of only the first sensing node, switching of only the second sensing node, and switching of the first sensing node and the second sensing node.

In another optional embodiment of the present application, the first sensing includes: a third sensing node sends a first signal, and the third sensing node receives at least part of the first signal reflected or scattered by the backscattering device;

Wherein, the at least one first candidate node includes: at least one first candidate node of the third sensing node.

In other words, the first sensing is that the third sensing node sends the first signal and the third sensing node receives the first signal, that is, the third sensing node spontaneously receives the first signal, and at least part of the received signal is reflected/scattered by the backscattering device. the first signal. The first sensing switching in this scenario includes: only sensing node switching, only sensing backscattering device switching, and switching of both sensing nodes and sensing backscattering devices;

Among them, the switching of the sensing node includes: switching of the third sensing node.

As another optional embodiment, the method further includes:

The first device receives rejection information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the rejection information is used to indicate the corresponding second candidate node and/or the second candidate backscattering device. The scattering device does not agree to act as a switched sensing node and/or sensing backscattering device;

Wherein, the second candidate node and/or the second candidate backscattering device that sends the rejection information does not participate in the sensing measurement of the first sensing.

In another implementation, if the second candidate node and/or the second candidate backscattering device does not agree to serve as the sensing node and/or the sensing backscattering device after switching, no information is sent to the first device, If the first device does not receive 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, the second candidate node and/or the second candidate backscattering device will default to Scatter devices are rejected as sense nodes and/or sense backscatter devices after switching.

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

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

ii. Maintain the current first perception;

iii. End the current first perception.

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

The first device determines, from the at least one first candidate node and/or at least one first candidate backscattering device, the first candidate node and/or the first candidate backscattering device whose measurement value satisfies a preset threshold condition. The forward scattering device is the target node and/or the target backscattering device.

In one implementation, the first device determines whether the actual measured value of the perceptual measurement quantity satisfies a preset threshold condition, and selects the target node and/or the target backscattering device from the first candidate node and/or the first candidate backscattering device. equipment;

In another implementation, the candidate node that receives the first signal reflected or scattered by the backscattering device determines by itself whether the actual measured value of the perceptual measurement quantity meets the preset threshold condition, and feeds back the judgment result to the first device (that is, whether it satisfies the Preset threshold conditions), the first device selects the target node and/or the target backscatter device from the first candidate node and/or the first candidate backscatter device according to the judgment result.

As an optional embodiment, the method further includes:

If the measured values of the sensing measurement quantities of the at least one first candidate node and/or the at least one first candidate backscattering device do not meet the preset threshold condition, the first device performs a first operation; The first action includes any of the following:

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

stop said first perception;

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

In at least one optional embodiment of the present application, when switching of sensing backscattering devices is required, the first device sends switching request information to at least one second candidate backscattering device, including:

The first device sends handover request information to at least one second candidate backscatter device through the first aware backscatter device inventory process.

For example, when the first device is node A that sends the first signal, node A can use a select command to select at least some backscattering devices within the coverage of the first signal for inventory. Node A sends handover request information to any at least one second candidate backscattering device through the 16-bit Random Number (RN16) and command field of the Acknowledgment message (ACK).

Optionally, before sending the switching request information to the second candidate backscattering device, the method further includes:

The first device determines at least one second candidate backscattering device based on the first information of the backscattering device within the coverage of the first signal; the first information includes at least one of the following:

Location information of backscatter equipment;

Backscatter equipment antenna panel orientation information;

Movement status information of backscattering equipment, including movement speed, movement direction, time period of remaining stationary/moving, etc.;

Sensing capability information of backscattering equipment, including sensing coverage, maximum bandwidth available for sensing, maximum duration of sensing services, supported sensing signal types and frame formats, backscattering device antenna array information (including array type , number of antennas, array aperture, antenna polarization characteristics, array element gain and directivity characteristics, etc.);

The resource information that the backscattering device can currently use for sensing, including time resources (number of symbols, number of time slots, frames number, etc.), frequency resources (number of RBs (Resource Blocks, resource blocks), number of REs (Resource Elements, resource units), total bandwidth, available frequency band locations, etc.), antenna resources (number of antennas/antenna sub-arrays), phase modulation resources (Number of hardware phase shifters), orthogonal code resources (length and quantity of orthogonal codes), etc.;

Channel status information of backscatter equipment, including channel transfer function/channel impulse response of at least one communication link, channel quality indicator (Channel Quality Indicator, CQI), precoding matrix indicator (Precoding Matrix Indicator, PMI), channel status Information reference signal (Channel State Information Reference Signal, CSI-RS) resource indication, synchronization signal/physical broadcast channel signal block (Synchronization Signal and PBCH block, SSB) resource indication, layer indication (LI), rank indication (RI) and L1 Reference signal received power (Layer 1 reference signal received power, L1-RSRP) and at least one other item.

Obtaining the first information can be achieved through a backscattering device inventory process. For example, the backscattering device feeds back the first information of the backscattering device to node A by checking RN16 in the ACK sent by node A.

Optionally, the second candidate backscattering device may be a sensing backscattering device deployed on the sensing target, or may be a sensing backscattering device deployed at any position in the sensing environment.

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

The target node and/or the target backscattering device performs the first sensing; and the source sensing node and/or the source backscattering device ends the first sensing and releases sensing resources; this can be called a hard handover;

or,

The target node and/or the target backscattering device performs the first sensing. After the number of measurements of the sensing measurement quantity has been obtained for a preset number of times or the first sensing has been performed for a preset time, the source sensing node and/or the source backscattering device Ending the first sensing and releasing sensing resources; it can be called soft handover.

In other words, after determining the target node and/or target backscattering device, the network performs a handover operation. Specifically, two methods, hard handover and soft handover, can be used:

If the hard handover method is adopted, the source sensing node and/or the source backscattering device ends the first sensing and releases sensing resources; at the same time or after this, the target node and/or the target backscattering device performs the first sensing;

If the soft handover method is used, the target node and/or the target backscattering device performs the first sensing. After the number of measurements of the sensing measurement quantity is obtained reaches the preset number or the first sensing is performed for the preset time, the source sensing node and/or the target backscattering device perform the first sensing. Or the source backscatter device ends the first sensing and releases sensing resources.

Optionally, the method also includes:

The first device sends a sensing end command to the first sensing source sensing node and/or source backscatter device, where the sensing end command is used to indicate the end of the corresponding source sensing node and/or source backscattering device. Participate in said first perception. That is, after receiving the sensing end command, the source sensing node and/or the source backscattering device ends participating in the first sensing and releases sensing resources.

Wherein, the first device sends a sensing end command to the first sensed source backscattering device, including:

The first device sends a sensing end command to the source backscatter device through the first sensed backscatter device inventory process. For example, when the first device is node A that sends the first signal, node A passes the ACK message RN16 and the command field, send a sensing end command to any at least one source backscattering device.

As an optional embodiment, the method further includes:

The first device sends at least part of the historical information of the first perception to the target node; wherein the historical information includes at least one of the following:

Historical measurements of perceptual measurements;

Historical perception results; wherein, based on at least one measurement value of at least one perception measurement quantity, further calculation can obtain the perception result; or, at least one measurement value of at least one perception measurement quantity can also be called a perception result, which will not be done here. Specific limitations;

Perceive target or region prior information.

It should be noted that in this embodiment of the present application, before the first device sends handover request information to the second candidate node and/or the second candidate backscattering device, the method further includes: the network performs handover measurement, and the first device According to the measurement report obtained from the handover measurement, decide whether to initiate a handover; if the handover is not initiated, the current first sensing can be maintained or ended; if the handover is initiated, a handover request is sent to the second candidate node and/or the second candidate backscattering device. information.

Optionally, when node A sends the first signal and node B receives the first signal, the network performs handover measurement steps including:

Node A sends a handover measurement request to node B. After receiving the handover measurement request, node B performs handover measurement and feeds back a handover measurement report to node A;

Alternatively, the core network device (such as the sensing function network element) sends a handover measurement request to Node B. After receiving the handover measurement request, Node B performs handover measurement and feeds back the handover measurement report to the core network device; optionally, Node B or the core The network device sends a handover measurement report to node A.

Before Node B performs handover measurement, the core network device or Node A sends handover measurement configuration information necessary for handover measurement to Node B. Alternatively, the handover measurement configuration information is included in the handover measurement request.

Optionally, when node A spontaneously receives the first signal, the network performs handover measurement steps including:

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

Alternatively, node A actively performs handover measurement and obtains 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 the following:

1) Measurement object: one or more first signals indicating source nodes and/or candidate nodes that need to be measured, as well as sensing measurement quantities and sensing parameter configuration information related to the first signals;

2) Switch measurement report configuration: including reporting principles, such as periodic reporting or event triggering principles; measurement report format, such as the maximum number of reported cells and number of beams;

3) Measurement events and related parameters: including measurement event definitions, event-related parameters, switching decision conditions, etc.;

4) Measurement ID: Measurement ID. Each measurement ID corresponds to a measurement object and a switching measurement report configuration;

The handover measurement report at least includes the measurement results of the sensing measurement quantities required for the handover measurement; the sensing measurement quantities required for the handover measurement may include the sensing measurement quantities of the current sensing service.

Optionally, the triggering events for the network to perform handover measurement include:

1) Perceive the target’s status to change (status includes position, speed, orientation, etc.);

2) The status of node A or node B that performs sensing changes (state includes position, speed, orientation, power, etc.);

3) Sensing changes in the regional environment (such as obstructions);

4) The status of node A or node B changes (status includes position, speed, orientation, power, available bandwidth, etc.);

5) The sensing measurement amount obtained by node A or node B reaches the preset threshold. For example, at least one of the sensing signal received power, sensing SNR, sensing SINR, distance/speed/angle measurement value, etc. satisfies the preset switching threshold.

6) The communication measurement volume obtained by node A or node B reaches the preset threshold. The communication measurement quantity includes at least one of the following: Reference Signal Received Power (RSRP), Signal Noise Ratio (SNR), Signal to Interference plus Noise Ratio (SINR), Reference Signal Received Quality (RSRQ), Received Signal Strength Indicator (RSSI), bit error rate, block error rate, throughput, spectrum efficiency, etc.

7) The available sensing resources of node A and/or node B change. For example, if other high-priority integrated sensing/communication/synaesthesia services burst out, it is necessary to evaluate whether to initiate a sensing handover process based on the remaining available sensing resources.

In short, when the perceived service performance is degraded or even interrupted due to changes in the perceived target state or changes in the perceived environment, the network is triggered to perform handover measurements.

To sum up, in the embodiment of the present application, the first device selects based on the measurement value of the first sensing measurement quantity of the at least one first candidate node and/or the at least one first candidate backscatter device based on the parameter configuration information. At least one target node and/or at least one target backscattering device to be switched, and sending a switching command to the at least one target node and/or at least one target backscattering device, thereby realizing the sensing node and/or the sensing backscattering device switch.

As shown in Figure 3, this embodiment of the present application also provides a handover processing method, including:

Step 301: The second candidate node receives the switching request information sent by the first device. The switching request information is used to request the second candidate node to serve as the sensing node after the first sensing switch; the first sensing is backscattering. Perception of device involvement;

Optionally, the handover request information may include a soft handover request or a hard handover request. The hard handover includes: the target node and/or the target backscattering device performs the first sensing; and the source sensing node and/or the source backscattering device ends the first sensing and releases sensing resources; the soft handover includes: the target node and/or the source backscattering device Or the target backscattering device performs the first sensing. After the number of times of obtaining the measurement value of the sensing measurement quantity reaches the preset number or the first sensing reaches the preset time, the source sensing node and/or the source backscattering device ends the first sensing. and release sensing resources;

Step 302: The second candidate node sends switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate node agrees to serve as the sensing node after switching;

Step 303: The first candidate node receives the parameter configuration information sent by the first device; the parameter configuration information is used to Configuring the sensing parameters of the first candidate node to perform first sensing; the first sensing is sensing involving backscattering equipment; the first candidate node includes: a candidate node among the second candidate nodes that agrees to switch;

Step 304: The first candidate node sends and/or receives the first signal corresponding to the first perception according to the parameter configuration information;

Optionally, what the first device obtains is the actual measurement value of the perceptual measurement quantity; or, what the first device obtains is the judgment result of whether the actual measurement value of the perceptual measurement quantity satisfies the preset threshold condition.

As an optional embodiment, if the second candidate node that receives the handover request information sent by the first device does not switch, it sends rejection information to the first device, where the rejection information is used to indicate that the corresponding second candidate node does not agree to act as a switch. Sensing node after switching;

Wherein, the second candidate node that sends the rejection information does not participate in the sensing measurement of the first sensing.

In another implementation, if the second candidate node does not agree to serve as the sensing node after switching, it does not send any information to the first device. The first device does not receive the switching request information within the preset time period after sending it. If the information fed back by the second candidate node is received, the second candidate node will be rejected as the sensing node after switching by default.

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

The first candidate node receives the switching command sent by the first device and determines the first candidate node to be the target node; the switching command is used to notify the target node to perform the first sensing;

The first sensing is continued according to the switching command.

Optionally, the method also includes:

If the first candidate node does not receive the switching command sent by the first device, it stops performing the first sensing.

To sum up, in the embodiment of the present application, the first device selects at least one target node to be switched based on the measurement value of the first sensing measurement quantity in which the at least one first candidate node participates based on the parameter configuration information, and sends the signal to at least one The target node sends a switching command to realize switching of the sensing node.

As shown in Figure 4, this embodiment of the present application also provides a handover processing method, including:

Step 401: The second candidate backscattering device receives switching request information sent by the first device, where the switching request information is used to request the second candidate backscattering device to serve as the sensing backscattering device after the first sensing switch; so The first perception is the perception involving the backscattering device;

Step 402: The second candidate backscattering device sends switching response information to the first device. The switching response information is used to indicate that the corresponding second candidate backscattering device agrees to serve as the sensing backscattering device after switching. ;

Step 403: The first candidate backscattering device receives the parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters of the first candidate backscattering device to participate in the first sensing; the first sensing It is the perception of the participation of backscattering devices; the first candidate backscattering device includes: a candidate backscattering device among the second candidate backscattering devices that agrees to switch;

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 performs reflection or scattering according to the received first signal. Obtain the measured value of the first perceived perceptual measurement quantity; the measured value of the perceptual measurement quantity is used to assist the first device from the to At least one target backscattering device participating in the first sensing is determined from among the at least one first candidate backscattering device.

Optionally, based on at least one measurement value of at least one sensory measurement quantity, further calculation can obtain the perception result; or, at least one measurement value of at least one perception measurement quantity can also be called a perception result, which will not be specified here. limited;

It should be noted that during the process of reflecting/scattering the first signal, the first candidate backscattering device can directly reflect/scatter without performing any processing on the first signal; it can also perform information modulation on the first signal before performing reflection/scattering. , the modulation method can be amplitude modulation, phase modulation, frequency modulation, or any combination of at least two of the above methods, which is not specifically limited here.

As an optional embodiment, if the second candidate backscattering device that receives the switching request information sent by the first device does not switch, it sends rejection information to the first device, where the rejection information is used to indicate the corresponding second candidate backscattering device. The backscatter device does not agree as a perceptual backscatter device after switching;

Wherein, the second candidate backscattering device that sends the rejection information does not participate in the sensing measurement of the first sensing.

In another implementation, if the second candidate backscattering device does not agree to be the sensing candidate backscattering device after switching, no information is sent to the first device. The first device sends the switching request information in advance. If no feedback information from the second candidate backscattering device is received within the time period, the second candidate backscattering device will be rejected as the sensing selected backscattering device after switching by default.

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

The first candidate backscattering device receives the switching command sent by the first device, and determines the first candidate backscattering device to be the target backscattering device; the switching command is used to notify the target backscattering device to participate said first perception;

Continue to participate in the first perception according to the switching command.

Optionally, the method also includes:

If the first candidate backscattering device does not receive the switching command sent by the first device, it stops participating in the first sensing.

To sum up, in the embodiment of the present application, the first device selects at least one target backscatter to be switched based on the measured value of the first sensed sensing measurement quantity in which the at least one first candidate backscattering device participates based on the parameter configuration information. device, and sends a switching command to at least one target backscatter device, thereby realizing switching of the sensing backscatter device.

In order to describe the handover processing method provided by the embodiment of the present application more clearly, the following is a complete handover with several examples. The process is explained in detail, and the backscattering device is referred to as Tag in the following examples.

Example 1, the first sensing mode (node A sends the first signal and node B receives the first signal reflected or scattered by the Tag), only sensing node switching

Step 1: The network performs handover measurements.

Step 2: Based on the handover measurement report, decide whether to initiate handover.

Optionally, node A reports a handover measurement report to the core network device, and the core network device decides whether to initiate a handover request. Alternatively, the core network device decides whether to initiate a handover request based on the handover measurement report received from the node B. Alternatively, Node B decides whether to initiate a handover request based on the handover measurement report.

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

If a handover is initiated, it will be divided into one of the following situations depending on the switching node:

Case 1: Only node B switches.

Node A or node B or core network equipment sends first request information to at least one second candidate node B. The first request information requests the first request information recipient to serve as a sensing node after switching and receive tag reflection/scattering. the first signal.

Case 2: Only node A switches.

The source node A or node B or the core network device sends second request information to at least one second candidate node A, where the second request information requests the recipient of the second request information to serve as a post-switched sensing node and send 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 sends 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. Discuss separately according to different switching nodes:

Case 1: Only node B switches.

Agree, the second candidate node B sends the first response information to the first request information sender. The first response information indicates the first request information sender. The first response information sender agrees to switch. After the switch, it receives the tag reflection /Scattered first signal.

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 configure sensing parameters for performing first sensing.

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

If not agreed, then optionally, the second candidate node B sends the first rejection information to the first request information sender, where the first rejection information indicates the first request information sender, and the first rejection information sender does not sense .

If all second candidate nodes do not agree to the handover, the subsequent processing can be one of the following: i. Node A or the core network device re-determines the first candidate node B; ii. Maintain the current perception; iii. End the current perception;

Case 2: Only node A switches.

Agree, the second candidate node A sends second response information to the second request information sender, the second response information is to indicate the second request information sender, the second response information sender agrees to switch, and sends 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 and supports the soft handover, optionally, the first parameter configuration information includes soft handover parameter configuration information.

If not agreed, then optionally, the second candidate node A sends second rejection information to the second request information sender, where the second rejection information indicates the second request information sender, and the second rejection information sender does not sense .

If all second candidate nodes do not agree to the handover, the subsequent processing can be one of the following: i. Source node A or node B or the core network device re-determines the second candidate node A; ii. Maintain the current perception; iii. End the current perception;

Case 3: Both node A and node B are switched, then case 1 and case 2 operations are performed at the same time.

Step 4: Node A/core network device based on the received first response information, or source node A/node B/core network device based on the received second response information, or core network device based on the received first response information , the second response information determines at least one target node among the second candidate nodes (A and/or B) as the sensing node that performs the first sensing after switching.

The specific process of determining the target node from the second candidate node (A and/or B) is as follows:

Case 1: Only node B switches.

(1) Node A or the core network device determines the first candidate node B from the second candidate node B based on the received first response information. The first candidate node B is the node B among the second candidate nodes B that agrees to switch;

(2) 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 configure sensing parameters for performing first sensing. Optionally, the second parameter configuration information includes soft handover parameter configuration information;

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

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

(5) The first candidate node B feeds back the measurement value of the sensing measurement quantity to the node A or the core network device. The node A or the core network device determines whether the measurement value meets the preset threshold conditions and determines the target from the first candidate node B. Node B. Or, the first candidate node B determines by itself whether the measurement value meets the preset threshold condition, and sends the request to node A or the core network device. After feedback of the judgment result, node A or core network equipment determines the target node B from the first candidate node B. If the measurement values of the sensing measurement quantities of all first candidate nodes B do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. Node A or the core network device re-determines the first candidate node B; ii. Maintain the current perception; iii. End the current perception;

(6) Node A or the core network device sends a handover command to the target node B. The switching command is used to notify the target sensing node to perform a first sensing operation.

Case 2: Only node A switches.

(1) Source node A or node B or the core network device determines the first candidate node A from the second candidate node A based on the received second response information. The first candidate node A is the node A among the second candidate nodes A that agrees to switch;

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

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

(4) Node B obtains the measurement value of the perceptual measurement quantity based on the first signal reflected by the received tag. Optionally, node B sends the measured value to source node A or core network equipment; source node A, node B, or core network equipment determines whether the measured value meets the preset threshold condition and determines it from the first candidate node A. Target node A. If the measurement values of the sensing measurement quantities corresponding to all first candidate nodes A do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. Source node A or node B or the core network device re-determines the first candidate Node A; ii. Maintain current perception; iii. End current perception;

(5) Source node A or node B or core network equipment sends a handover command to target node A.

Case 3: Both node A and node B switch.

(1) Based on the received first response information, the core network device determines the first candidate node B from the second candidate node B, where the first candidate node B is the node B among the second candidate node B that agrees to switch; After receiving the second response information, determine the first candidate node A from the second candidate node A, where the first candidate node A is the node A among the second candidate nodes A that agrees to switch;

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

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

(5) The first candidate node B feeds back the measurement value of the sensing measurement quantity to the core network equipment. The core network equipment determines whether the measurement value meets the preset threshold condition, determines the target node B from the first candidate node B, and determines the target node B from the first candidate node B. Determine target node A among candidate nodes A. Alternatively, the first candidate node B determines by itself whether the measurement value meets the preset threshold condition, and feeds back the judgment result to the core network device. The core network device determines the target node B from the first candidate node B, and determines the target node B from the first candidate node A. Target node A. If the sensing measurement values of all first candidate nodes B do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. The core network device re-determines the first candidate node A and/or The first candidate node B; ii. Maintain the current perception; iii. End the current perception;

(6) The core network device sends a handover command to target node A and target node B.

Step 5: After determining the target node (A and/or B), the network performs a handover operation. Specifically, two methods, hard handover and soft handover, can be used:

Case 1: Only node B switches.

If the hard handover method is adopted, the source node B ends the first sensing and releases the sensing resources; at the same time or after this, the target node B performs the first sensing;

If the soft handover method is used, the target node B performs the first sensing. After the number of sensing measurement values/sensing results obtained reaches the preset number of times, or the first sensing reaches the preset time, the source node B ends the first sensing and Release sensing resources;

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

Case 2: Only node A switches.

If the hard handover method is adopted, the source node A ends the first sensing and releases the sensing resources; at the same time or after this, the target node A performs the first sensing;

If the soft handover method is used, the target node A performs the first sensing. After the number of sensing measurement values/sensing results obtained reaches the preset number of times, or the first sensing reaches the preset time, the source node A ends the first sensing, and Release sensing resources;

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

Case 3: Both node A and node B switch.

If the hard handover method is adopted, source node A and source node B end the first sensing and release sensing resources; at the same time or after this, target node A and target node B perform the first sensing;

If the soft handover method is used, the target node A and the target node B perform the first sensing. After the number of sensing measurement values/sensing results obtained reaches the preset number, or the first sensing reaches the preset time, the source node A and the source node B perform the first sensing. Node B ends the first sensing and releases sensing resources;

Optionally, source node A and source node B end the first sensing and release sensing resources after receiving the sensing end command sent by the core network device.

Step 6: Optionally, the source node and/or core network equipment and/or sensing tag send at least part of the historical sensing measurement values and/or historical sensing results, and sensing target/area prior information to the target node.

Example 2, the first sensing method (node A sends the first signal and node B receives the first signal reflected or scattered by the Tag), only sensing Tag switching

Step 1: The network performs handover measurements.

If switching is initiated, and only the sensing tag is switched:

Node A or the core network device sends third request information to at least one second candidate tag. The third request information requests the recipient of the third request information to serve as a sensing tag after switching and reflects/scatters the first signal sent by node A. . Optionally, the third request information may include a soft handover request.

Wherein, the node A or the core network device sends the third request information to at least one second candidate tag, which can be realized through the tag inventory process: the node A can use the Select command to select at least some tags within the coverage of the first signal for inventory. . Node A sends the third request information to any at least one second candidate tag through the RN16 and command fields of the ACK message.

Optionally, before step 2, node A obtains first information about sensing tags within the coverage of the first signal, and the first information is used to determine the second candidate tag. Among them, obtaining the first information can be realized through the tag inventory 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 the following:

1) Position information of candidate tags;

2) Candidate tag antenna panel orientation information;

3) Status information of candidate tags;

4) Perceptual ability information of candidate tags;

5) Resource information that candidate tags can currently use for sensing;

6) Channel status information of candidate tags.

Step 3: The second candidate tag feeds back second information to node A. The second information indicates whether node A's first candidate tag agrees to switch, or whether it meets the switching conditions. The second information includes third response information or third rejection information. specifically:

Agree or meet the switching conditions, the second candidate tag feeds back the third response information to the third request information sender (node A), the third response information is to indicate the third request information sender, and the third response information sender agrees to switch The switching conditions are met, and the first signal sent by node A is reflected/scattered after switching.

Optionally, the second candidate tag feeds back the suggested third parameter configuration information in the first response information. The third parameter Configuration information for sensing nodes (A and B) and second candidate tags to perform sensing parameter configuration for first sensing.

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

does not agree or does not meet the switching conditions, then optionally, the second candidate tag sends third rejection information to the third request information sender (node A), and the third rejection information indicates the third request information sender. 3. The sender of rejection information does not participate in sensing.

If all the second candidate tags do not agree to switch or do not meet the switching conditions, the subsequent processing can be one of the following: i. Node A or the core network device re-determines the second candidate tag; ii. Maintain the current perception; iii. End current perception;

Wherein, the second candidate tag feeds back the second information to the node A, which can be realized through the tag inventory 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: Node A/core network equipment determines at least one target tag among the second candidate tags based on the received third response information as a sensing tag that participates in the first sensing after handover.

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

(1) Node A or the core network device determines the first candidate tag from the second candidate tag based on the received third response information. The first candidate tag is the sensing tag among the second candidate tags that agrees to switch or has switching conditions;

(2) Node A or the core network device sends the fourth parameter configuration information to the first candidate tag. The fourth parameter configuration information is used to configure the sensing parameters for the first candidate tag to participate in the first sensing. Optionally, the fourth parameter configuration information includes soft handover parameter configuration information;

(3) Node A sends the first signal, and at least part of the first signal is reflected by at least one first candidate tag and is received by node B;

(4) Node B obtains the measurement value of the perceptual measurement quantity based on the received first signal reflected by the first candidate tag.

(5) Node B determines whether the measurement value meets the preset threshold condition and determines at least one target tag from the first candidate tag. Alternatively, Node B feeds back the measurement value of the sensing measurement quantity to Node A or the core network device. Node A or the core network device determines whether the measurement value meets the preset threshold condition and determines at least one target tag from the first candidate tag. Alternatively, Node B determines whether the measurement value meets the preset threshold condition and feeds back the judgment result to Node A or the core network device. Node A or the core network device determines at least one target tag from the first candidate tag. If the measurement values of the sensing measurement quantities corresponding to all the first candidate tags do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. Node A or the core network device re-determines the first candidate tag; ii. Switching of sensing nodes; iii. Maintain current sensing; iv. End current sensing;

(6) Node A or the core network device sends a switching command to the target tag. The switching command is used to notify the target tag to participate in the first sensing operation.

Step 5: After determining the target tag, the network performs a handover operation. Specifically, two methods, hard handover and soft handover, can be used:

If the hard switching method is used, the source tag ends participating in the first sensing and releases sensing resources; at the same time or after this, the target tag participates in the first sensing;

If the soft handover method is used, the target tag participates in the first sensing, and the sensing measurement value/sensing result is obtained at node B. If the number of times reaches the preset number, or the first sensing reaches the preset time, the source tag ends participating in the first sensing and releases the sensing resources;

Optionally, after receiving the sensing end command sent by node A or the core network device to the source tag, the source tag ends participating in the first sensing and releases sensing resources. The node A or core network device sends a sensing end command to the source tag, which can be implemented through the tag inventory process: node A sends a sensing end command to any at least one source tag through the RN16 and command fields of the ACK message.

Step 6: Optionally, the source tag sends at least part of the measurement values of the historical sensing measurement quantities and/or historical sensing results and sensing target/area prior information to at least one of node A, node B, and core network equipment.

Example 3, the first sensing mode (node A sends the first signal and node B receives the first signal reflected or scattered by the tag), the sensing node and the sensing tag are both switched

Step 1: The network performs handover measurements.

If a handover is initiated and at least one sensing node and sensing tag are switched, it will be divided into one of the following situations depending on the switching node:

Case 1: Only node B switches with the sensing tag.

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.

Wherein, the node A or the core network device sends the third request information to at least one second candidate tag, which can be realized through the tag inventory process: the node A can use the Select command to select at least some tags within the coverage of the first signal for inventory. . Node A sends the third request information to any at least one first candidate tag through the RN16 and command fields of the ACK message.

Case 2: Only node A switches with the sensing tag.

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

Wherein, 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 inventory process: the source node A can select at least some tags within the coverage of the first signal through the Select command. Take stock. Source node A sends the third request information to any at least one first candidate tag through the RN16 and command fields of the ACK message.

Optionally, before step 2, source node A obtains first information about sensing tags within the coverage of the first signal, and the first information is used to determine the second candidate tag. Wherein, obtaining the first information can be realized through the tag inventory 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 tags are all switched.

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

Wherein, the core network device sends the third request information to at least one second candidate tag, which can be implemented through a tag inventory process: the core network device instructs the source node A to select at least some tags within the coverage of the first signal through the Select command. inventory. Source node A sends the third request information to any at least one first candidate tag through the RN16 and command fields of the ACK message.

Optionally, at least 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 1.

The content of the first information is the same as Example 2.

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

Wherein, the second candidate node decides whether to agree to the handover: the same as step 3 in Example 1.

Wherein, the second candidate tag feeds back the second information to node A (or source node A): the same as step 3 in Example 2.

Step 4: Node A/core network device based on the received first response information, or source node A/node B/core network device based on the received second response information, or core network device based on the received first response information . The second response information determines at least one target node among the second candidate nodes as the sensing node that performs the first sensing after switching.

Furthermore, node A/source node A/core network equipment determines at least one target tag among the second candidate tags based on the received third response information as a sensing tag that participates in the first sensing after handover.

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

Case 1: Only node B switches with the sensing tag.

(1) Node A or the core network device determines the first candidate node B from the second candidate node B based on the received first response information; determines the first candidate node B from the second candidate tag based on the received third response information. candidate tag;

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

(3) Node A sends the first signal, and at least part of the first signal is reflected by at least one first candidate tag and received by at least one first candidate node B;

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

(5) The first candidate node B feeds back the measurement value of the sensing measurement quantity to the node A or the core network device. The node A or the core network device determines whether the measurement value meets the preset threshold conditions and determines the target from the first candidate node B. Node B, and determines the target tag from the first candidate tag. Or, the first candidate node B determines by itself whether the measurement value meets the preset threshold condition, and feeds back the judgment result to the node A or the core network device. The node A or the core network device determines the target node B from the first candidate node B, and from Determine the target tag among the first candidate tags. If all the sensing measurement values fed back by the first candidate node B do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. Node A or the core network device re-determines the first candidate node B and/or The second candidate tag; ii. Maintain the current perception; iii. End the current perception;

(6) Node A or the core network device sends a handover command to the target node B and the target tag.

Case 2: Only node A switches with the sensing tag.

(1) The source node A or node B or the core network device determines the first candidate node A from the second candidate node A based on the received second response information; the source node A or the core network device determines the first candidate node A based on the received third response information. Information, determine the first candidate tag from the second candidate tag;

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

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

(4) Node B obtains the measurement value of the perceptual measurement quantity based on the first signal reflected by the received tag. Optionally, node B sends the measured value to source node A or core network equipment; source node A, node B, or core network equipment determines whether the measured value meets the preset threshold condition and determines it from the first candidate node A. Target node A, and determine the target tag from the first candidate tag. If the measurement values of the sensing measurement quantities fed back by all first candidate nodes A do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. Source node A or node B or the core network device re-determines the first candidate Node A and/or the first candidate tag; ii. Maintain the current perception; iii. End the current perception;

(5) Source node A or node B or the core network device sends a switching command to the target node A and the target tag.

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

(1) The core network device determines the first candidate node from the second candidate node B based on the received first response information. B; Based on the received second response information, determine the first candidate node A from the second candidate node A; Based on the received third response information, determine the first candidate tag from the second candidate tag;

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

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

(5) The first candidate node B feeds back the measurement value of the sensing measurement quantity to the core network equipment. The core network equipment determines whether the measurement value meets the preset threshold condition, determines the target node B from the first candidate node B, and determines the target node B from the first candidate node B. The target node A is determined from the candidate nodes A, and the target tag is determined from the first candidate tag. Alternatively, the first candidate node B determines whether the measurement value meets the preset threshold condition by itself, and feeds back the determination result to node A or the core network device. If the measurement values of the sensing measurement quantities of all first candidate nodes B do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. The core network device re-determines the first candidate node A and the first candidate node B , at least one of the first candidate tags; ii. Maintain the current perception; iii. End the current perception;

(6) The core network device sends a handover command to target node A, target node B, and target tag.

Step 5: After determining the target node (A and/or B) and target tag, the network performs a handover operation. Specifically, two methods, hard handover and soft handover, can be used:

Case 1: Only node B switches with the sensing tag.

If the hard handover method is used, the source node B ends the first sensing and releases the sensing resources, and the source tag ends participating in the first sensing and releases the sensing resources; at the same time or after this, the target node B performs the first sensing, and The target tag participates in the first perception;

If the soft handover method is used, the target node B performs the first sensing, and the target tag participates in the first sensing. After the number of sensing measurement values/sensing results obtained reaches the preset number, or the first sensing reaches the preset time, the source Node B ends the first sensing and releases sensing resources, and the source tag ends participating in the first sensing and releases sensing resources;

Optionally, source node B and/or source tag end the first sensing and release sensing resources after receiving the sensing end command sent by node A or the core network device.

Case 2: Only node A switches and senses tag switching.

If the hard handover method is used, the source node A ends the first sensing and releases the sensing resources, and the source tag ends participating in the first sensing and releases the sensing resources; at the same time or after this, the target node A performs the first sensing, and The target tag participates in the first perception;

If the soft handover method is used, the target node A performs the first sensing, and the target tag participates in the first sensing. After the number of sensing measurement values/sensing results obtained reaches the preset number, or the first sensing reaches the preset time, the source Node A ends the first sensing and releases sensing resources, and the source tag ends participating in the first sensing and releases sensing resources;

Optionally, after source node A and/or source tag receive the sensing end command sent by node B or the core network device, Then end the first perception and release the perception resources.

Case 3: Both node A and node B switch.

If the hard handover method is used, source node A and source node B end the first sensing and release sensing resources, and the source tag ends participating in the first sensing and releases sensing resources; at the same time or after this, target node A and target Node B performs the first perception, and the target tag participates in the first perception;

If the soft handover method is used, target node A and target node B perform the first sensing, and the target tag participates in the first sensing. The number of sensing measurement values/sensing results reached the preset number, or the first sensing reaches the preset number. After time, source node A and source node B end the first sensing and release the sensing resources, and the source tag ends participating in the first sensing and releases the sensing resources;

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

Among them, any one of the node A (or source node A), node B, and core network equipment sends a sensing end command to the source tag, which can be realized through the tag inventory process: the former uses the RN16 and command fields of the ACK message to any at least 1 source tag sends the sensing end command.

Step 6: Optionally, the source node and/or core network equipment and/or source tag send at least part of the historical sensing measurement values and/or historical sensing results, sensing target/area prior information to the target node, node A , at least one of node B and core network equipment.

Example 4, second sensing mode (node A sends the first signal and node A receives the first signal reflected or scattered by the Tag), only sensing node switching

Step 1: The network performs handover measurements.

The core network device (such as the sensing function network element) sends a handover measurement request to the source node A (such as the base station or UE). After receiving the handover measurement request, the source node A performs the handover measurement and feeds back the handover measurement report to the core network device;

Alternatively, source node A actively performs handover measurement and obtains a handover measurement report. Optionally, source node A sends a handover measurement report to the core network device;

Optionally, before source node A performs handover measurement, the core network device sends handover measurement configuration information necessary for handover measurement to source node A. Alternatively, the handover measurement configuration information is included in the handover measurement request.

The handover measurement configuration information is the same as Example 1.

The trigger event of step 1 is the same as Example 1.

Optionally, 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 switching is initiated, perform the following operations:

The source node A or the core network device sends fourth request information to at least one second candidate node A, where the fourth request information requests the recipient of the fourth request information to serve as the sensing node after switching, send the first signal, and receive the tag Reflected/scattered first signal.

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

The determination of the second candidate node A is the same as Example 1.

Step 3: The second candidate node decides whether to agree to the switch:

Agree, the second candidate node A sends the fourth response information to the fourth request information sender. The fourth response information is to indicate the fourth request information sender. The fourth response information sender agrees to switch and sends the first signal after the switch. , and receive 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 and supports soft handover, optionally, the first parameter configuration information includes soft handover parameter configuration information.

If not agreed, then optionally, the second candidate node A sends fourth rejection information to the fourth request information sender, where 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 the handover, the subsequent processing can be one of the following: i. The source node A or the core network device re-determines the second candidate node A; ii. Maintain the current perception; iii. End the current perception;

Step 4: Based on the received fourth response information, the source node A/core network device determines at least one target node among the second candidate nodes as the sensing node that performs the first sensing after handover.

The specific process 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 node A based on the received fourth response information. The first candidate node A is the node A among the second candidate nodes A that agrees to switch;

(2) The source node A or the core network device sends the 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 sends the first signal, and at least part of the first signal is reflected by at least one sensing tag and is received by the first candidate node A;

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

(5) The first candidate node A feeds back the measurement value of the sensing measurement quantity to the source node A or the core network device. The source node A or the core network device determines whether the measurement value meets the preset threshold condition, and obtains the value from the first candidate node A. Determine target node A. Alternatively, the first candidate node A determines by itself whether the measurement value meets the preset threshold condition, and feeds back the judgment result to the source node A or the core network device. The source node A or the core network device determines the target node A from the first candidate node A. If the measurement values of the sensing measurement quantities of all first candidate nodes A do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. The source node A or the core network device re-determines the first candidate node A; ii. .Maintain the current perception; iii.End the current perception;

(6) Source node A or core network equipment sends a handover command to target node A. The switching command is used to notify the target sensing node to perform a first sensing operation.

Step 5: After determining the target node A, the network performs a handover operation. Specifically, two methods, hard handover and soft handover, can be used. Law:

If the hard handover method is used, the source node A ends the first sensing and releases the sensing resources; at the same time or after this, the target node A performs the first sensing;

Optionally, after receiving the sensing end command sent by the core network device, source node A ends the first sensing and releases sensing resources.

Example 5, second sensing mode (node A sends the first signal and node A receives the first signal reflected or scattered by the tag), only sensing tag switching

Step 1: The network performs handover measurements.

The handover measurement configuration information is the same as Example 1.

The trigger event of step 1 is the same as Example 1.

If switching is initiated, and only the sensing tag is switched:

Node A or the core network device 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 2.

Step 3: The second candidate tag feeds back the second information to node A, the same as step 3 in Example 2.

(2) Node A or the core network device sends the fifth parameter configuration information to the first candidate tag. The fifth parameter configuration information is used to configure the sensing parameters for the first candidate tag to participate in the first sensing. Optionally, the fifth parameter configuration information includes soft handover parameter configuration information;

(3) Node A sends the first signal, and at least part of the first signal is reflected by at least one first candidate tag and is received by node A;

(4) Node A obtains the measurement value of the perceptual measurement quantity based on the first signal reflected by the received first candidate tag.

(5) Node A determines whether the measurement value meets the preset threshold condition and determines at least one target tag from the first candidate tag. Alternatively, node A feeds back the measurement value of the sensing measurement quantity to the core network device, and the core network device determines whether the measurement value meets the preset threshold condition, and determines at least one target tag from the first candidate tag. Alternatively, node A determines whether the measurement value meets the preset threshold condition and feeds back the judgment result to the core network device. The core network device determines at least one target tag from the first candidate tag. If the measurement values of the sensing measurement quantities corresponding to all the first candidate tags do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. Node A or the core network device re-determines the first candidate tag; ii. Switching of sensing nodes; iii. Maintain current sensing; iv. End current sensing;

If the soft handover method is used, the target tag participates in the first sensing. After node A obtains the sensing measurement value/sensing result for a preset number of times, or performs the first sensing for a preset time, the source tag ends participating in the first sensing. and release sensing resources;

Step 6: Optionally, the source tag sends at least part of the historical sensing measurement values and/or historical sensing results, and sensing target/area prior information to node A and/or core network equipment.

Example 6, second sensing mode (Node A sends the first signal and Node A receives the third signal reflected or scattered by the Tag (one signal), both the sensing node and sensing tag are switched

Step 1: The network performs handover measurements.

The handover measurement configuration information is the same as Example 1.

The trigger event of step 1 is the same as Example 1.

If switching is initiated, perform the following operations:

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

Wherein, 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 inventory process: the source node A can select at least some tags within the coverage of the first signal through the Select command. Take stock. Source node A sends the third request information to any at least one second candidate tag through the RN16 and command fields of the ACK message.

Optionally, before step 2, source node A obtains first information about sensing tags within the coverage of the first signal, and the first information is used to determine the first candidate tag. Wherein, obtaining the first information can be realized through the tag inventory 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 1.

The first information is the same as Example 2.

Step 3: The second candidate node A decides whether to agree to the handover, and the second candidate tag feeds back the second information to the source node A.

The second candidate node A decides whether to agree to the handover: the same as step 3 in Example 4.

Wherein, the second candidate tag feeds back the second information to the source node A: the same as step 3 in Example 2.

Furthermore, the source node A/core network device determines at least one target tag among the second candidate tags based on the received third response information as a sensing tag that participates in the first sensing after the handover.

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

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

(2) Source node A or the core network device sends the second parameter configuration information to the first candidate node A; sends the fifth parameter configuration information to the first candidate tag;

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

(5) The first candidate node A feeds back the measurement value of the sensing measurement quantity to the source node A or the core network device. The source node A or the core network device determines whether the measurement value meets the preset threshold condition, and obtains the value from the first candidate node A. Determine target node A. Alternatively, the first candidate node A determines by itself whether the measurement value meets the preset threshold condition, and feeds back the judgment result to the source node A or the core network device. The source node A or the core network device determines the target node A from the first candidate node A. If the measurement values of the sensing measurement quantities of all first candidate nodes A do not meet the preset threshold conditions, the subsequent processing may be one of the following: i. The source node A or the core network device re-determines the first candidate node A and/or or the second candidate tag; ii. Maintain the current perception; iii. End the current perception;

(6) Source node A or core network equipment sends a handover command to target node A and target tag.

Step 5: After determining the target node A and the target tag, the network performs a handover operation. Specifically, two methods, hard handover and soft handover, can be used:

If the soft handover method is used, the target node A performs the first sensing, the target tag participates in the first sensing, and after the number of sensing measurement values/sensing results obtained reaches the preset number, or the first sensing reaches the preset time, the source Node A ends the first sensing and releases sensing resources, and the source tag ends participating in the first sensing and releases sensing resources;

Optionally, source node A and/or source tag end the first sensing and release sensing resources after receiving the sensing end command sent by the core network device.

Step 6: Optionally, source node A and/or core network equipment and/or source tag send at least part of the historical sensing measurement values and/or historical sensing results, sensing target/area prior information to target node A, At least one of the target tag and core network equipment.

For the handover processing method provided by the embodiment of the present application, the execution subject may be a handover processing device. In the embodiment of the present application, the switching processing device executing the handover processing method is taken as an example to illustrate the switching processing device provided by the embodiment of the present application.

As shown in Figure 5, this embodiment of the present application also provides a switching processing device 500, which includes:

The first sending module 501 is configured to send switching request information to at least one second candidate node and/or at least one second candidate backscattering device, where the switching request information is used to request the second candidate node to serve as the first sensing device. The sensing node after switching, and/or, is used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing is the sensing in which the backscattering device participates;

The first receiving module 502 is configured to receive switching response information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the switching response information is used to indicate the corresponding second candidate node and/or The second candidate backscatter device agrees to serve as a post-switch sensing node and/or sensing backscatter device;

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

The second sending module 504 is configured to send a switching command to at least one target node and/or at least one target backscattering device, where the switching command is used to notify the target node to perform the first sensing, and/or to notify the target backscattering device. Scattering devices participate in said first perception.

As an optional embodiment, the first determination module includes:

The first sub-module is configured to send parameter configuration information to at least one first candidate node and/or at least one first candidate backscatter device according to the handover response information; the parameter configuration information is used to configure the first Sensing parameters for the candidate node to perform the first sensing and/or sensing parameters for configuring the first candidate backscattering device to participate in the first sensing;

The second sub-module is used to obtain the measurement value of the first sensing sensing measurement quantity in which the at least one first candidate node and/or the at least one first candidate backscattering device participates based on the parameter configuration information;

A third submodule, determine 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 according to the measurement value;

As an optional embodiment, the first sensing includes: the first sensing node sends a first signal, and the second sensing node receives at least part of the first signal reflected or scattered by the backscattering device;

As an optional embodiment, the first sensing includes: a third sensing node sends a first signal, and the third sensing node receives at least part of the first signal reflected or scattered by the backscattering device;

As an optional embodiment, the device further includes:

A third sending module, configured to send signals to at least one second candidate node and/or at least one second candidate backscatter device Send switching request information, the switching request information is used to request the second candidate node to serve as a sensing node after switching, and/or, to request the second candidate backscattering device to serve as a sensing backscattering device after switching. equipment;

The third receiving module is configured to receive switching response information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the switching response information is used to indicate the corresponding second candidate node and/or the third candidate node. The two candidate backscattering devices agree to serve as sensing nodes and/or sensing backscattering devices after switching;

As an optional embodiment, the device further includes:

A seventh receiving module, configured to receive rejection information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the rejection information is used to indicate the corresponding second candidate node and/or second candidate The backscatter device does not agree to act as a post-switch sensing node and/or a sensing backscatter device;

As an optional embodiment, the first determining module includes:

A first determination sub-module, configured to determine, from the at least one first candidate node and/or at least one first candidate backscattering device, the first candidate node and/or the first candidate node whose measurement value satisfies the preset threshold condition. A candidate backscatter device is the target node and/or target backscatter device.

As an optional embodiment, the device further includes:

A first execution module configured to perform a first operation if the measured values of the sensing measurement quantities of the at least one first candidate node and/or the at least one first candidate backscattering device do not meet the preset threshold condition; The first operation includes any of the following:

stop said first perception;

Continue with the first perception.

As an optional embodiment, the third sending module includes:

The third sending sub-module is configured to send switching request information to at least one second candidate backscattering device through the first perceived backscattering device inventory process.

As an optional embodiment, the device further includes:

A second determination module, configured to determine at least one second candidate backscattering device based on the first information of the backscattering device within the coverage of the first signal; the first information includes at least one of the following:

Location information of backscatter equipment;

Backscatter equipment antenna panel orientation information;

Movement status information of backscattering equipment;

Sensing capability information of backscatter devices;

Information about the resources currently available to the backscatter device for sensing;

Channel status information for backscatter devices.

As an optional embodiment, the device further includes:

A seventh sending module, configured to send a sensing end command to the first sensing source sensing node and/or source backscatter device, where the sensing end command is used to indicate the corresponding source sensing node and/or source backscattering device. The device ends participating in the first perception.

As an optional embodiment, the seventh sending module includes:

A seventh sending sub-module is configured to send a sensing end command to the source backscatter device through the first sensed backscatter device inventory process.

As an optional embodiment, the first sensing switching process includes:

The target node and/or the target backscattering device performs the first sensing; and the source sensing node and/or the source backscattering device ends the first sensing and releases sensing resources;

or,

The target node and/or the target backscattering device performs the first sensing. After the number of measurements of the sensing measurement quantity has been obtained for a preset number of times or the first sensing has been performed for a preset time, the source sensing node and/or the source backscattering device End the first perception and release perception resources.

As an optional embodiment, the device further includes:

The eighth sending module is used to send at least part of the historical information of the first perception to the target node; wherein the historical information includes at least one of the following:

Historical measurements of perceptual measurements;

historical perception results;

Perceive target or region prior information.

In this embodiment of the present application, the first device selects the node to be switched based on the measurement value of the first sensing sensing measurement quantity in which at least one first candidate node and/or at least one first candidate backscattering device participates based on parameter configuration information. At least one target node and/or at least one target backscattering device, and sending a switching command to at least one target node and/or at least one target backscattering device, thereby realizing switching of the sensing node and/or the sensing backscattering device.

It should be noted that the switching processing device provided by the embodiment 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 this device, and can achieve the same or similar beneficial effects. This will not be repeated here.

As shown in Figure 6, this embodiment of the present application also provides a switching processing device 600, which includes:

The second receiving module 601 is configured to receive switching request information sent by the first device, where the switching request information is used to request the second candidate node to serve as the sensing node after the first sensing switch; the first sensing is reverse perception of involvement of scattering devices;

The third sending module 602 is configured to send switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate node agrees to serve as the sensing node after switching;

The third receiving module 603 is used to receive parameter configuration information sent by the first device; the parameter configuration information is used to Configuring the sensing parameters of the first candidate node to perform first sensing; the first sensing is sensing involving backscattering equipment;

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

As an optional embodiment, the device further includes:

The second receiving module is configured to receive the switching command sent by the first device and determine the first candidate node as the target node; the switching command is used to notify the target node to perform the first sensing;

The first execution module is configured to continue to execute the first sensing according to the switching command.

As an optional embodiment, the device further includes:

A first stopping module, configured to stop performing the first sensing if the first candidate node does not receive the switching command sent by the first device.

In this embodiment of the present application, the first device selects at least one target node to be switched based on the measurement value of the first sensing measurement quantity in which the at least one first candidate node participates based on parameter configuration information, and sends a message to the at least one target node. Switch commands to achieve sensing nodes.

As shown in Figure 7, this embodiment of the present application also provides a switching processing device 700, which includes:

The fourth receiving module 701 is configured to receive switching request information sent by the first device, where the switching request information is used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; One perception is the perception involving the participation of backscatter equipment;

The fourth sending module 702 is configured to send switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate backscattering device agrees to serve as the switched sensing backscattering device;

The fifth receiving module 703 is used to receive parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters of the first candidate backscattering device to participate in the first sensing; the first sensing is reverse scattering equipment perception of participation;

The second perception processing module 704 is configured to perform 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 the first signal according to the received first signal. A measurement value of a sensing measurement quantity of the first perception; the measurement value of the perception measurement quantity is used to assist the first device in determining at least one participating device in the first perception from the at least one first candidate backscattering device. Target backscatter equipment.

As an optional embodiment, the device further includes:

The fifth receiving module is used to receive the switching command sent by the first device and determine that the first candidate backscattering device is the target backscattering device; the switching command is used to notify the target backscattering device to participate in the first perception;

The first participation module is configured to continue to participate in the first perception according to the switching command.

As an optional embodiment, the device further includes:

The second stopping module is configured to stop participating in the first sensing if the first candidate backscattering device does not receive the switching command sent by the first device.

In this embodiment of the present application, the first device selects at least one target backscattering device to be switched based on the measurement value of the first sensing sensing measurement quantity in which the at least one first candidate backscattering device participates based on parameter configuration information, and A switching command is sent to at least one target backscattering device, thereby realizing switching of the sensing backscattering device.

The switching processing device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. For example, terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.

The switching processing device provided by the embodiment of the present application can implement each process implemented by the method embodiments of Figures 1 to 4, and achieve the same technical effect. To avoid duplication, details will not be described here.

Optionally, as shown in Figure 8, this embodiment of the present application also provides a communication device 800, which includes a processor 801 and a memory 802. The memory 802 stores programs or instructions that can be run on the processor 801, for example. , when the communication device 800 is the first device, when the program or instruction is executed by the processor 801, each step of the above handover processing method embodiment is implemented, and the same technical effect can be achieved. When the communication device 800 is a candidate node or a candidate backscattering device, when the program or instruction is executed by the processor 801, each step of the above handover processing method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the steps are not included here. Again.

An embodiment of the present application also provides a first device, including a processor and a communication interface, wherein the communication interface is used to send switching request information to at least one second candidate node and/or at least one second candidate backscattering device. , the switching request information is used to request the second candidate node to serve as the sensing node after the first sensing switch, and/or to request the second candidate backscattering device to serve as the sensing backscattering device after the first sensing switch. scattering device; the first sense Known as the perception of participation of a backscattering device; sending switching request information to at least one second candidate node and/or at least one second candidate backscattering device, the switching request information being used to request the second candidate node to serve as the third candidate node. A sensing node after sensing switching, and/or, used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switching; the first sensing is sensing in which the backscattering device participates ; The processor is used to determine at least one target node and/or at least one target backscatter device from the candidate nodes and/or candidate backscatter devices that agree to switch according to the handover response information; the communication interface is also used to Send a switching command to at least one target node and/or at least one target backscattering device, the switching command being used to notify the target node to perform the first sensing, and/or to notify the target backscattering device to participate in the first sensing . Alternatively, an embodiment of the present application further provides a node including a processor and a communication interface, wherein the communication interface is used to receive switching request information sent by the first device, and the switching request information is used to request the second device. The candidate node serves as the sensing node after the first sensing switch; the first sensing is the sensing involving the backscattering device; sends switching response information to the first device, and the switching response information is used to indicate the corresponding second candidate The node agrees to serve as a sensing node after switching; receives parameter configuration information sent by the first device; the parameter configuration information is used to configure sensing parameters for the first candidate node to perform first sensing; the first sensing is backscattering Perception in which the device participates; according to the parameter configuration information, send and/or receive the first signal corresponding to the first perception; wherein the node receiving the first signal obtains the first signal according to the received first signal. The measurement value of the sensing measurement quantity of the first sensing; the measurement value of the sensing measurement quantity is used to assist the first device in determining at least one target node for performing the first sensing from the at least one first candidate node. In the case where the first device or node is a terminal, the terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to the terminal embodiment, and can achieve Same technical effect. Specifically, FIG. 9 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.

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

Those skilled in the art can understand that the terminal 900 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 910 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 9 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or may combine certain components, or arrange different components, which will not be described again here.

It should be understood that in the embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042. The graphics processor 9041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras). The display unit 906 may include a display panel 9061, which 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 a touch panel 9071 and at least one of other input devices 9072 . Touch panel 9071, also known as 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 physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.

In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 901 can transmit it to the processor 910 for processing; in addition, the radio frequency unit 901 can send uplink data to the network side device. Generally, 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, etc.

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 for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc. Additionally, memory 909 may include volatile memory or nonvolatile memory, or memory 909 may include both volatile and nonvolatile memory. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM). Memory 909 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 910 may include one or more processing units; optionally, the processor 910 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 910.

Wherein, the radio frequency unit 901 is used to send switching request information to at least one second candidate node and/or at least one second candidate backscattering device, where the switching request information is used to request the second candidate node to serve as the first sensing device. The sensing node after switching, and/or, is used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing is the sensing in which the backscattering device participates; receive Handover response information sent by at least one second candidate node and/or at least one second candidate backscattering device, the handover response information is used to indicate that the corresponding second candidate node and/or the second candidate backscattering device agrees to serve as Switched sensing nodes and/or sensing backscatter devices;

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 that agree to switch, according to the handover response information;

The radio frequency unit 901 is also configured to send a switching command to at least one target node and/or at least one target backscattering device, where the switching command is used to notify the target node to perform the first sensing, and/or to notify the target backscattering device. The device participates in said first perception.

or,

Radio frequency unit 901, configured to receive switching request information sent by the first device, where the switching request information is used to request The second candidate node serves as the sensing node after the first sensing switch; the first sensing is sensing involving backscattering equipment; and the switching response information is sent to the first device, and the switching response information is used to indicate the corresponding The second candidate node agrees to serve as the sensing node after switching; receives the parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters of the first candidate node to perform the first sensing; the first sensing Sensing involving backscattering equipment; sending and/or receiving the first signal corresponding to the first sensing according to the parameter configuration information;

It should be noted that the terminal provided by the embodiments of the present application is a terminal that can perform the above-mentioned handover processing method, and all embodiments of the above-mentioned handover processing method are applicable to this terminal, and can achieve the same or similar beneficial effects. Herein No further details will be given.

When the first device provided by 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. This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in FIG. 10 , the network side device 1000 includes: an antenna 101 , a radio frequency device 102 , a baseband device 103 , a processor 104 and a memory 105 . The antenna 101 is connected to the radio frequency device 102 . In the uplink direction, the radio frequency device 102 receives information through the antenna 101 and sends the received information to the baseband device 103 for processing. In the downlink direction, the baseband device 103 processes the information to be sent and sends it to the radio frequency device 102. The radio frequency device 102 processes the received information and then sends it out through the antenna 101.

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

The baseband device 103 may include, for example, at least one baseband board on which multiple chips are disposed, as shown in FIG. Program to perform the network device operations shown in the above method embodiments.

The network side device may also include a network interface 106, which is, for example, a common public radio interface (CPRI).

Specifically, the network side device 1000 in the embodiment of the present application also includes: instructions or programs stored in the memory 105 and executable on the processor 104. The processor 104 calls the instructions or programs in the memory 105 to execute Figure 5 or Figure 6 The execution methods of each module are shown and achieve the same technical effect. To avoid repetition, they will not be described in detail here.

When the first device is a core network device, embodiments of the present application further provide a core network device. As shown in Figure 11, the core network equipment 1100 includes: a processor 1101, a network interface 1102 and a memory 1103. Among them, the network interface 1102 is, for example, a common public radio interface (CPRI).

Specifically, the core network device 1100 in the embodiment of the present application also includes: instructions or programs stored in the memory 1103 and executable on the processor 1101. The processor 1101 calls the instructions or programs in the memory 1103 to execute what is shown in Figure 5 It shows the execution method of each module and achieves the same technical effect. To avoid duplication, it will not be repeated here.

Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the above switching processing method embodiment is implemented, and the same can be achieved. The technical effects will not be repeated here to avoid repetition.

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

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the above switching processing method embodiment. Each process can achieve the same technical effect. To avoid duplication, it will not be described again here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

Embodiments of the present application further provide a computer program/program product. The computer program/program product is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the above switching processing method embodiment. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.

An embodiment of the present application also provides a communication system, including: a first device, a first candidate node, and a first candidate backscattering device. The first device may be configured to perform the steps of the method as described above. The first device A candidate node may be used to perform the steps of the method as described above, and the first candidate backscattering device may be used to perform the steps of the method as described above.

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

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above specific implementations. The above-described specific implementations are only illustrative and not restrictive. Under the inspiration of this application, those of ordinary skill in the art can also make other modifications without departing from the purpose of this application and the scope protected by the claims. Many forms are made, all falling within the protection of this application.

Claims

A switching processing method includes:

The first device sends switching request information to at least one second candidate node and/or at least one second candidate backscattering device, where the switching request information is used to request the second candidate node to serve as a sensing node after the first sensing switch. , and/or, used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing is the sensing in which the backscattering device participates;

The first device receives switching response information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the switching response information is used to indicate the corresponding second candidate node and/or the second candidate The backscattering device agrees to serve as the sensing node and/or the sensing backscattering device after switching;

The first device determines at least one target node and/or at least one target backscattering device from the candidate nodes and/or candidate backscattering devices that agree to the handover based on the handover response information;

The first device sends a switching command to at least one target node and/or at least one target backscattering device, where the switching command is used to notify the target node to perform the first sensing, and/or to notify the target backscattering device to participate. The first perception.
The method according to claim 1, wherein the first device determines at least one target node and/or at least one target backscattering device from candidate nodes and/or candidate backscattering devices that agree to switch based on the handover response information. Scattering equipment, including:

The first device sends parameter configuration information to at least one first candidate node and/or at least one first candidate backscattering device according to the handover response information; the parameter configuration information is used to configure the first candidate node to execute the first a sensing parameter for sensing and/or sensing parameters for configuring the first candidate backscattering device to participate in the first sensing;

The first device obtains a measurement value of a first sensing sensing measurement quantity in which the at least one first candidate node and/or the at least one first candidate backscattering device participates based on the parameter configuration information;

The first device determines 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;

Wherein, the first candidate node includes: a candidate node among the second candidate nodes that agrees to switch; and/or the first candidate backscatter device includes: a candidate backscatter device among the second candidate backscatter devices that agrees to switch. Scattering equipment.
The method according to claim 1, wherein the first sensing includes: a first sensing node transmits a first signal, and a second sensing node receives at least part of the first signal reflected or scattered by a backscattering device;

Wherein, the at least one first candidate node includes: at least one first candidate node of the first sensing node, and/or at least one first candidate node of the second sensing node.
The method according to claim 1, wherein the first sensing includes: a third sensing node transmits a first signal, and the third sensing node receives at least part of the first signal reflected or scattered by a backscattering device;

Wherein, the at least one first candidate node includes: at least one first candidate node of the third sensing node.
The method of claim 1, further comprising:

The first device receives rejection information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the rejection information is used to indicate the corresponding second candidate node and/or the second candidate backscattering device. The scattering device does not agree to act as a switched sensing node and/or sensing backscattering device;

Wherein, the second candidate node and/or the second candidate backscattering device that sends the rejection information does not participate in the sensing measurement of the first sensing.
The method of claim 2, wherein the first device determines at least one target node from the at least one first candidate node and/or at least one first candidate backscattering device based on the measurement value. /or at least one target backscatter device including:

The first device determines, from the at least one first candidate node and/or at least one first candidate backscattering device, the first candidate node and/or the first candidate backscattering device whose measurement value satisfies a preset threshold condition. The forward scattering device is the target node and/or the target backscattering device.
The method of claim 6, further comprising:

If the measured values of the sensing measurement quantities of the at least one first candidate node and/or the at least one first candidate backscattering device do not meet the preset threshold condition, the first device performs a first operation; The first action includes any of the following:

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

stop said first perception;

Continue with the first perception.
The method according to claim 1, wherein the first device sends switching request information to at least one second candidate backscatter device, including:

The first device sends handover request information to at least one second candidate backscatter device through the first aware backscatter device inventory process.
The method of claim 1, further comprising:

The first device determines at least one second candidate backscattering device based on the first information of the backscattering device within the coverage of the first signal; the first information includes at least one of the following:

Location information of backscatter equipment;

Backscatter equipment antenna panel orientation information;

Movement status information of backscattering equipment;

Sensing capability information of backscatter devices;

Information about the resources currently available to the backscatter device for sensing;

Channel status information for backscatter devices.
The method according to any one of claims 1-9, wherein the method further includes:

The first device sends a sensing end command to the first sensing source sensing node and/or source backscatter device, where the sensing end command is used to indicate the end of the corresponding source sensing node and/or source backscattering device. Participate in said first perception.
The method of claim 10, wherein the first device sends a sensing end command to the first sensed source backscatter device, comprising:

The first device sends a sensing end command to the source backscatter device through the first sensed backscatter device inventory process.
The method of claim 1, wherein the first perceived switching process includes:

The target node and/or the target backscattering device performs the first sensing; and the source sensing node and/or the source backscattering device ends the first sensing and releases sensing resources;

or,

The target node and/or the target backscattering device performs the first sensing. After the number of measurements of the sensing measurement quantity has been obtained for a preset number of times or the first sensing has been performed for a preset time, the source sensing node and/or the source backscattering device End the first perception and release perception resources.
The method of claim 1, further comprising:

The first device sends at least part of the historical information of the first perception to the target node; wherein the historical information includes at least one of the following:

Historical measurements of perceptual measurements;

historical perception results;

Perceive target or region prior information.
A switching processing method includes:

The second candidate node receives the switching request information sent by the first device, and the switching request information is used to request the second candidate node to serve as the sensing node after the first sensing switch; the first sensing is a backscattering device participating perception;

The second candidate node sends switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate node agrees to serve as the sensing node after switching;

The first candidate node receives the parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters for the first candidate node to perform first sensing; the first sensing is sensing involving the backscattering device; The first candidate node includes: a candidate node among the second candidate nodes that agrees to switch;

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

Wherein, the node receiving the first signal obtains the measured value of the first perceived perceptual measurement quantity according to the received first signal; the measured value of the perceptual measurement quantity is used to assist the first device to obtain the perceptual measurement quantity from the first signal. At least one target node for performing the first sensing is determined among at least one first candidate node.
The method of claim 14, wherein the first sensing includes: a first sensing node transmits a first signal, and a second sensing node receives at least part of the first signal reflected or scattered by a backscattering device;

Wherein, the at least one first candidate node includes: at least one first candidate node of the first sensing node, and/or at least one first candidate node of the second sensing node.
The method of claim 14, wherein the first sensing includes: a third sensing node sending a a signal, and the third sensing node receives at least part of the first signal reflected or scattered by the backscattering device;

Wherein, the at least one first candidate node includes: at least one first candidate node of the third sensing node.
The method of claim 14, wherein the method further includes:

The first candidate node receives the switching command sent by the first device and determines the first candidate node to be the target node; the switching command is used to notify the target node to perform the first sensing;

The first sensing is continued according to the switching command.
The method of claim 14, wherein the method further includes:

If the first candidate node does not receive the switching command sent by the first device, it stops performing the first sensing.
A switching processing method includes:

The second candidate backscattering device receives switching request information sent by the first device, and the switching request information is used to request the second candidate backscattering device to serve as the sensing backscattering device after the first sensing switch; the first sensing backscattering device Perception involves the participation of backscattering devices;

The second candidate backscattering device sends switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate backscattering device agrees to serve as the switched sensing backscattering device;

The first candidate backscattering device receives the parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters of the first candidate backscattering device to participate in the first sensing; the first sensing is reverse Perception of the participation of scattering devices; the first candidate backscattering device includes: candidate backscattering devices among the second candidate backscattering devices that agree to switch;

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 the first signal according to the received first signal. A measurement value of a sensing measurement quantity of the first perception; the measurement value of the perception measurement quantity is used to assist the first device in determining at least one participating device in the first perception from the at least one first candidate backscattering device. Target backscatter equipment.
The method of claim 19, further comprising:

The first candidate backscattering device receives the switching command sent by the first device, and determines the first candidate backscattering device to be the target backscattering device; the switching command is used to notify the target backscattering device to participate said first perception;

Continue to participate in the first perception according to the switching command.
The method of claim 19, further comprising:

If the first candidate backscattering device does not receive the switching command sent by the first device, it stops participating in the first sensing.
A switching processing device, including:

A first sending module, configured to send switching request information to at least one second candidate node and/or at least one second candidate backscattering device, where the switching request information is used to request the second candidate node to serve as a first sensing switch The subsequent sensing node, and/or, is used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing is the sensing in which the backscattering device participates;

A first receiving module configured to receive switching response information sent by at least one second candidate node and/or at least one second candidate backscattering device, where the switching response information is used to indicate the corresponding second candidate node and/or the third candidate node. The two candidate backscattering devices agree to serve as sensing nodes and/or sensing backscattering devices after switching;

A first determination 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, based on the handover response information;

A second sending module, configured to send a switching command to at least one target node and/or at least one target backscattering device, where the switching command is used to notify the target node to perform the first sensing, and/or to notify the target backscattering device. The device participates in said first perception.
A first device, including a processor and a memory, the memory storing a program or instructions executable on the processor, wherein the program or instructions when executed by the processor implement claims 1 to 13 The steps of switching the processing method described in any one of the above.
A switching processing device, including:

The second receiving module is used to receive the switching request information sent by the first device. The switching request information is used to request the second candidate node to serve as the sensing node after the first sensing switch; the first sensing is the participation of the backscattering device. perception;

A third sending module, configured to send switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate node agrees to serve as the sensing node after switching;

The third receiving module is used to receive parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters of the first candidate node to perform the first sensing; the first sensing is sensing involving the backscattering device ;

A first perception processing module, configured to send and/or receive the first signal corresponding to the first perception according to the parameter configuration information;

Wherein, the node receiving the first signal obtains the measured value of the first perceived perceptual measurement quantity according to the received first signal; the measured value of the perceptual measurement quantity is used to assist the first device to obtain the perceptual measurement quantity from the first signal. At least one target node for performing the first sensing is determined among at least one first candidate node.
A node includes a processor and a memory, the memory stores programs or instructions that can be run on the processor, wherein when the program or instructions are executed by the processor, any one of claims 14 to 18 is implemented. Steps for switching processing methods as described in item 1.
A switching processing device, including:

The fourth receiving module is configured to receive switching request information sent by the first device, where the switching request information is used to request the second candidate backscattering device as the sensing backscattering device after the first sensing switch; the first sensing is Perception of involvement of backscatter equipment;

A fourth sending module, configured to send switching response information to the first device, where the switching response information is used to indicate that the corresponding second candidate backscattering device agrees to serve as the switched sensing backscattering device;

The fifth receiving module is used to receive parameter configuration information sent by the first device; the parameter configuration information is used to configure the sensing parameters of the first candidate backscattering device to participate in the first sensing; the first sensing is the backscattering device perception of participation;

The second perception processing module is configured to perform 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 the first signal according to the received first signal. A measured value of a perceived sensing measurement quantity; the measured value of the sensing measurement quantity is used to assist the first device in determining at least one target participating in the first sensing from the at least one first candidate backscattering device Backscatter equipment.
A backscattering device includes a processor and a memory, the memory stores a program or instructions that can be run on the processor, wherein when the program or instructions are executed by the processor, the implementation of claims 19 to The steps of switching the processing method described in any one of 21.
A readable storage medium on which a program or instructions are stored, wherein when the program or instructions are executed by a processor, the steps of the switching processing method as described in any one of claims 1-13 are implemented, Either implement the steps of the handover processing method as described in any one of claims 14 to 18, or implement the steps of the handover processing method as described in any one of claims 19 to 21.