CN117202276A

CN117202276A - Switching method and device of sensing function and communication equipment

Info

Publication number: CN117202276A
Application number: CN202210602524.2A
Authority: CN
Inventors: 袁雁南; 丁圣利; 姜大洁; 李健之
Original assignee: Vivo Software Technology Co Ltd
Current assignee: Vivo Software Technology Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2023-12-08
Also published as: WO2023231841A1

Abstract

The application discloses a switching method and device of sensing functions and communication equipment, belonging to the technical field of wireless communication. And under the condition that the first sensing function node determines that the sensing function node is required to be switched, executing at least one of the following operations: sending first switching information to the second sensing function node, wherein the second sensing function node is a target sensing function node for switching; sending a sensing function node switching instruction to a sensing node, wherein the sensing function node switching instruction is used for indicating that sensing function node switching is required; the sensing node comprises a sensing terminal and/or a sensing base station which participate in sensing; transmitting information of the second sensing function node to the sensing node; and sending a perception ending instruction to the perception node, wherein the perception ending instruction is used for instructing the perception node to stop sending perception data to the first perception function node and/or deleting a transmission channel between the perception node and the first perception function node.

Description

Switching method and device of sensing function and communication equipment

Technical Field

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

Background

The mobility management of the existing mobile communication network is mainly based on communication design, and the perception requirement is not considered. In some scenes, the sensing terminal or the sensing target needs to switch the sensing function nodes due to the movement of the sensing terminal or the sensing target, and how to switch the sensing function nodes can ensure the continuity of sensing service is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a switching method and device of a sensing function and communication equipment, which can solve the problem of how to switch sensing function nodes.

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

and under the condition that the first sensing function node determines that the sensing function node is required to be switched, executing at least one of the following operations:

sending first switching information to a second sensing function node, wherein the second sensing function node is a target sensing function node for switching;

sending a sensing function node switching instruction to a sensing node, wherein the sensing function node switching instruction is used for indicating that sensing function node switching is required; the sensing node comprises a sensing terminal and/or a sensing base station which participate in sensing;

Transmitting information of the second sensing function node to the sensing node;

and sending a perception ending instruction to the perception node, wherein the perception ending instruction is used for instructing the perception node to stop sending perception data to the first perception function node and/or deleting a transmission channel between the perception node and the first perception function node.

In a second aspect, a method for switching a sensing function is provided, including:

the second perception function node receives first switching information sent by the first perception function node;

and the second perception function node carries out perception related configuration according to the first switching information.

In a third aspect, a switching device for a sensing function is provided, including:

the execution module is used for executing at least one of the following operations under the condition that the need of the switching of the sensing function nodes is determined:

and sending a perception ending instruction to the perception node, wherein the perception ending instruction is used for instructing the perception node to stop sending perception data to a first perception function node and/or deleting a transmission channel between the perception node and the first perception function node.

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

the receiving module is used for receiving first switching information sent by the first perception function node;

and the configuration module is used for performing perception related configuration according to the first switching information.

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

In a sixth aspect, a communication device is provided, including a processor and a communication interface, where the processor is configured to perform at least one of the following operations when it is determined that a handover of a sensing function node is required:

In a seventh aspect, a network side device is provided, including a processor and a communication interface, where the communication interface is configured to receive first handover information sent by a first sensing function node; the processor is used for performing perception related configuration according to the first switching information.

In an eighth aspect, there is provided a communication system comprising: a first sensing function node operable to perform the steps of the method as described in the first aspect and a second sensing function node operable to perform the steps of the method as described in the second aspect.

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

In a tenth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions implementing the method according to the first or second aspect.

In an eleventh aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to implement the steps of the method according to the first or second aspect.

In the embodiment of the application, under the condition that the sensing function node determines that the sensing function node is required to be switched, the first switching information is sent to the switched second sensing function node and/or the switching sensing function node switching instruction, the information of the second sensing function node and/or the sensing ending instruction are sent to the sensing node, so that the target sensing function node can continuously provide the ongoing sensing service, the continuity of the sensing service is ensured, and the sensing node can quickly interact with the second sensing function node, and the sensing service quality in the switching process is ensured.

Drawings

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

FIG. 2 is a flow chart of a method for switching sensing functions according to an embodiment of the application;

FIG. 3 is a second flow chart of a method for switching sensing functions according to an embodiment of the application;

FIG. 4 is a schematic flow diagram of a Xn-based inter-NG-RAN awareness function node switch;

FIG. 5 is a schematic flow diagram of a N2-based inter-NG-RAN awareness function node switch;

FIG. 6 is a schematic diagram of a switching device with sensing function according to an embodiment of the application;

FIG. 7 is a second schematic diagram of a switching device for sensing functions according to an embodiment of the application;

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

fig. 9 is a second schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

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

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

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

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

In order to facilitate a better understanding of the embodiments of the present application, some related technical points will be described below.

Communication perception integration, namely through frequency spectrum sharing and hardware sharing in the same system, realizes communication, perception function integration design, and the system can perceive information such as position, distance, speed when carrying out information transfer, detects, tracks, discerns target equipment or incident, and communication system supplements with perception system, realizes promotion in the aspect of overall performance and brings better service experience.

Future mobile communication systems, such as B5G (super 5 generation mobile communication) systems or 6G systems, will have a sensing capability in addition to the communication capability. The sensing capability, i.e. one or more devices with sensing capability, can sense information such as the azimuth, distance, speed and the like of the target object through sending and receiving wireless signals, or detect, track, identify, image and the like the target object, event or environment. In the future, along with deployment of small base stations with high-frequency band and large bandwidth capabilities such as millimeter waves and terahertz waves in a 6G network, the perceived resolution is obviously improved compared with the centimeter waves, so that the 6G network can provide finer perceived services. Typical perceptual functions and application scenarios are shown in table 1.

TABLE 1

The above-mentioned representations of the quality of service requirements of the perceived service are different, for example, the perception of intelligent traffic, high-precision maps, etc. is generally expressed in terms of perceived range, distance resolution, angle resolution, speed resolution, time delay, etc.; flight intrusion detection awareness is typically expressed in terms of coverage height, awareness accuracy, awareness latency; respiration monitoring is expressed in terms of perceived distance, perceived real-time, perceived resolution, and perceived accuracy; indoor intrusion detection is expressed by a perception distance, perception instantaneity, detection probability and false alarm probability; gesture/gesture recognition is expressed in terms of perceived distance, perceived real-time, perceived accuracy.

The service request modes of the sensing service are different, for example, the service request based on a static area represents the geographic position area of the content to be sensed by a certain coordinate system; based on the service request of the dynamic region, representing the geographical position range of the content to be perceived by M meters around a certain UE; a continuous perception service request of a dynamic target is characterized in that a detected target and a continuous position tracked target represent a perception target needing to perceive content.

Referring to fig. 2, an embodiment of the present application provides a method for switching a sensing function, including:

Step 21: and under the condition that the first sensing function node determines that the sensing function node is required to be switched, executing at least one of the following operations:

The first sensing function node may also be called a source sensing function node, and the second sensing function node may also be called a target sensing function node.

A sensing function node (also simply referred to as a sensing function) is a network function for receiving a sensing request and providing a sensing result, and may be referred to by other names.

The sensing terminal is a terminal participating in sensing, and can be used as a sensing signal sending node, a sensing signal receiving node, a sensing auxiliary information providing node or a sensing service demand node.

The sensing base station is a base station participating in sensing, and the sensing base station can be used as a sensing signal sending node, a sensing signal receiving node, a sensing auxiliary information providing node or a sensing service demand node.

According to different sensing modes, the sensing terminal or the sensing base station can be determined to serve as nodes.

The sensing mode comprises at least one of the following:

the sensing base station is used as a sensing signal transmitting node and used for transmitting a sensing signal, the sensing terminal is used as a sensing signal receiving node and used for measuring the received sensing signal and generating a sensing measurement result (namely sensing data) to be transmitted to the sensing function node;

The sensing terminal is used as a sensing signal transmitting node and used for transmitting sensing signals, the sensing base station is used as a sensing signal receiving node and used for measuring the received sensing signals and generating sensing measurement results (namely sensing data) and transmitting the sensing measurement results to the sensing function node.

The sensing base stations are used as sensing signal transmitting nodes, the other sensing base stations are used as sensing signal receiving nodes, the received sensing signals are measured, and sensing measurement results (namely sensing data) are generated and transmitted to the sensing function nodes.

The sensing base station is used as a sensing signal transmitting node and is used as a sensing signal receiving node to measure the received sensing signal and generate a sensing measurement result (namely sensing data) to be transmitted to the sensing function node.

The sensing terminal is used as a sensing signal transmitting node and is used as a sensing signal receiving node, measures the received sensing signal, and generates a sensing measurement result (namely sensing data) to be transmitted to the sensing function node.

The sensing terminals are used as sensing signal transmitting nodes, the other sensing terminals are used as sensing signal receiving nodes, the received sensing signals are measured, and sensing measurement results (namely sensing data) are generated and transmitted to the sensing function nodes.

In the embodiment of the present application, optionally, the determining, by the first sensing function node, that the sensing function node needs to be switched includes: the first sensing function node determines that the sensing function node is required to be switched according to at least one of switching information of the sensing terminal, moving information of a sensing target and resource and performance information of a sensing function.

That is, the reason for the switching of the sensing function node is at least one of the following three cases:

1) When the mobility of the sensing terminal (including the terminal as a sensing signal sending node, a sensing signal receiving node, a sensing auxiliary information providing node and/or a sensing service demand node, etc.) causes the switching, the sensing function node connected with the target base station is different from the current sensing function node.

2) The perception target moves out of the service range of the current perception function node to cause the perception function node to change.

3) The sensing function node causes the sensing function node to change due to at least one of its computing resources, sensing traffic load, sensing performance monitoring information, etc.

In the embodiment of the application, the switching reasons of various sensing function nodes are considered, so that the determining mode of the switching of the sensing function nodes is more accurate.

In the embodiment of the present application, optionally, the sensing terminal is at least one of a sensing signal sending node, a sensing signal receiving node, a sensing auxiliary node and a sensing service demand node.

In the embodiment of the present application, optionally, the handover information of the sensing terminal includes at least one of an identifier of the sensing terminal, target base station information, target AMF information and target user plane function information of the sensing terminal.

In the embodiment of the present application, optionally, the first sensing function node determines that switching of the sensing function node is required according to the switching information of the sensing terminal, and before the step of determining that switching of the sensing function node is required, the method further includes:

the first perception function node obtains switching information of the perception terminal through at least one of the following modes:

1) The first perception function node subscribes switching information of the perception terminal to an AMF;

when the AMF receives a handover message (e.g., N2 Path Switch Request or Handover required) sent by a radio access network (Radio Access Network, RAN) node (e.g., base station), if the message is a handover of a perceived UE to which the first perceived function node subscribes, the AMF sends the handover information of the UE to the first perceived function node.

2) The first perception function node receives switching information of the perception terminal, which is sent by the perception terminal;

in the embodiment of the present application, optionally, when the sensing terminal receives a handover command of the base station, handover information is sent to the first sensing function node, where the handover information packet at least includes target base station information, target AMF and/or target UP function information for sensing terminal handover.

3) And the first perception function node receives switching information of the perception terminal, which is sent by a source base station of the perception terminal.

In the embodiment of the application, a source base station of a sensing terminal sends switching information of the sensing terminal to a first sensing function node connected with the source base station, wherein the switching information at least comprises identification of the sensing terminal, target base station information of the sensing terminal switching, target AMF and/or target User Plane (UP) function information.

Namely, the sensing function node may acquire the switching information of the sensing terminal in various manners.

In an embodiment of the present application, optionally, the movement information of the sensing target includes at least one of a position, a movement direction, and a movement speed of the sensing target.

In the embodiment of the present application, optionally, the determining, by the first sensing function node according to the movement information of the sensing target, that the sensing function node needs to be switched further includes:

The first perception function node obtains the movement information of the perception target through at least one of the following modes:

1) The first perception function node determines a perception signal receiving node for perceiving the movement information of the perception target, sends perception measurement configuration information to the perception signal receiving node, and determines the movement information of the perception target according to the perception measurement result sent by the perception signal receiving node;

the sense signal receiving node may be the same as or different from the sense node being used. For example, the information to be sensed on the sensing target is track tracking, and then the first sensing function node can multiplex the same sensing node and sensing measurement quantity; for example, if an obstacle with a range of 10 meters near the sensing target needs to be sensed, it may be necessary to determine that a new sensing signal transmitting node and a receiving node sense movement information of the sensing target.

2) The first perception function node requests the application function or other perception function nodes for the movement information of the perception target.

For example, assuming that the perceived target is in the business of map navigation, the first perceived function node may request movement information of the perceived target from the map application function server.

In the mode 1), the first sensing function node has a function of sensing movement information of the target. In the mode 2), optionally, the first sensing function node is only responsible for sensing information (for example, gesture recognition) of the sensing target requested by the sensing service, and the other sensing function nodes are responsible for sensing the movement information of the sensing target, so that the movement information of the sensing target needs to be requested from the other sensing function nodes. The other sensing function node has a function of sensing movement information of the target, as in the first sensing function node in the embodiment 1).

In the embodiment of the present application, optionally, the determining, by the first sensing function node, that the sensing function node needs to be switched according to the movement information of the sensing target includes:

the first perception function node determines whether the perception signal transmitting node and/or the perception signal receiving node are/is required to be switched according to the perception measurement result transmitted by the perception signal receiving node;

if it is determined that switching of a sensing signal sending node and/or a sensing signal receiving node is required, the first sensing function node determines whether the sensing target moves out of the service range of the first sensing function node according to the movement information of the sensing target;

And if the fact that the perception target moves out of the service range of the first perception function node is determined, the first perception function node determines that the perception function node is required to be switched.

In the embodiment of the present application, optionally, the determining, by the first sensing function node according to the movement information of the sensing target, that the sensing function node needs to be switched further includes: the first perception function node determines that the perception target is a non-stationary perception target, and the current perception signal sending node and/or the perception signal receiving node is an edge node; the edge node refers to an edge of the service range of the first sensing function node where the sensing signal transmitting node and/or the sensing signal receiving node are/is located, and when the edge node senses, movement of the sensing target may cause the sensing target to move out of the service range of the first sensing function node.

That is, if the sensing target is stationary or both the transmitting node sensing the sensing target and the sensing signal are central nodes, the first sensing function node does not need to acquire mobility information of the sensing function and determine that the sensing function node needs to be switched, so that overhead of switching preparation can be saved.

In the embodiment of the present application, optionally, the resource and performance information of the sensing function includes at least one of computing resource information (such as a central processing unit (Central Processing Unit, CPU) resource utilization, graphics processing unit (Graphics Processing Unit, GPU) resource utilization, memory utilization, etc.), sensing traffic load information (such as a sensing function can process N sensing traffic at most, and the current traffic accords with 80%), and sensing performance detection information (such as sensing delay performance, sensing precision performance, etc.).

In the embodiment of the present application, optionally, the first sensing function node determines that switching of the sensing function node is required according to the resource and performance information of the sensing function, and before the step of determining that switching of the sensing function node is required, the method further includes: the first perception function node requests the network function node for the resource and performance information of the perception function.

In an embodiment of the present application, optionally, the first handover information includes at least one of a sensing node context, a sensing service context, and historical sensing data.

The historical perception data comprises at least one of a historical perception result, a historical perception measurement result and historical perception auxiliary information. For some situations that the sensing result can be generated based on the historical sensing measurement result in a period of time, the historical sensing data is helpful for the target sensing function node to still quickly generate the sensing result after the sensing function node is switched, and all sensing data in the required time is not required to be accumulated again.

In this embodiment of the present application, optionally, the first sensing function node sends information of the second sensing function node to the sensing node through at least one of the following modes:

the sensing node comprises a sensing terminal, and the first sensing function node sends information of the second sensing function node to the sensing terminal through a Non-Access Stratum (NAS) protocol data unit (Protocol Data Unit, PDU); the downlink NAS PDU is Additional information units, for example.

The sensing node comprises a sensing base station, and the first sensing function node sends information of the second sensing function node to the sensing base station through an N2 interface;

the first sensing function node sends information of the second sensing function node to the sensing node through an information unit defined in a sensing protocol. If the sensing protocol is transmitted through the NAS, the information unit NAS layer of the second sensing function node is not analyzed.

The information of the second sensing function node at least comprises identification information of the second sensing function node, and the information is used for sending a message to the second sensing function node after the sensing terminal is switched.

In this embodiment of the present application, optionally, after the first sensing function node sends the first switching information to the second sensing function node, the method further includes: the first sensing function node receives switching response information sent by the second sensing function node, wherein the switching response information comprises indication information for indicating whether to continue to use the current sensing signal sending node and/or the sensing signal receiving node;

The first awareness function node performing at least one of the following comprises:

if the switching response information comprises indication information for indicating to continue to use the current sensing signal transmitting node and/or the sensing signal receiving node, the first sensing function node transmits information of the second sensing function node to the sensing signal transmitting node and/or the sensing signal receiving node;

and/or

And if the switching response information comprises indication information for indicating that the current sensing signal transmitting node and/or the sensing signal receiving node is not continuously used, the first sensing function node transmits a sensing ending indication to the sensing signal transmitting node and/or the sensing signal receiving node.

In the embodiment of the present application, optionally, the function of receiving the sensing measurement result (i.e., the value of the sensing measurement quantity) in the sensing node function and generating the sensing result may be referred to as a sensing user function. Functions other than the above-described ones called a perception user function are called a perception control function. According to the conventional deployment experience of a mobile communication network, if a control function and a user function are separately defined as different network functions (such as SMF and UPF), one control plane function typically corresponds to a plurality of user plane functions.

In the embodiment of the present application, optionally, the first sensing function node includes a sensing user function node and a sensing control function node; one of the sensory control function nodes may correspond to one or more of the sensory user function nodes.

When considering the case where the perception control and the user function are separated, it may happen that only the perception user function needs to be switched, while the perception control function remains unchanged.

That is, the determining, by the first sensing function node, that the sensing function node needs to be switched includes: the sensing control function node determines that the sensing function node switching is required;

the performing at least one of the following operations includes: the aware user function node performs at least one of:

sending first switching information to a target perception user function node, wherein the target perception user function node is a switched perception user function node;

sending a sensing function node switching instruction to the sensing node;

and sending a sensing end instruction to the sensing node.

In an embodiment of the present application, optionally, the receiving a sensing measurement result, generating a sensing result according to the sensing measurement result, and responding to the sensing service request according to the sensing result includes at least one of:

Receiving a sensing measurement result containing a first-stage sensing measurement quantity and/or a second-stage sensing measurement quantity, generating a sensing result containing a third-stage sensing measurement quantity according to the first-stage sensing measurement quantity and/or the second-stage sensing measurement quantity, and responding to a sensing service request according to the sensing result containing the third-stage sensing measurement quantity;

and receiving a sensing measurement result containing a third-level sensing measurement quantity, generating a sensing result containing a fourth-level sensing measurement quantity according to the third-level sensing measurement quantity, and responding to a sensing service request according to the sensing result containing the fourth-level sensing measurement quantity.

Referring to fig. 3, an embodiment of the present application further provides a method for switching a sensing function, including:

step 31: the second perception function node receives first switching information sent by the first perception function node;

step 32: and the second perception function node carries out perception related configuration according to the first switching information.

In the embodiment of the application, the second perception function node receives the first switching information sent by the first perception function node and carries out perception related configuration, so that the ongoing perception service can be continuously provided, and the continuity of the perception service is ensured.

In this embodiment of the present application, optionally, the first switching information includes at least one of a sensing node context, a sensing service context, and historical sensing data, and the historical sensing data includes at least one of a historical sensing result, a historical sensing measurement result, and historical sensing auxiliary information.

In this embodiment of the present application, optionally, the performing, by the second sensing function node, a sensing related configuration according to the first switching information includes at least one of:

transmitting time-frequency resource information used for sensing to a target sensing base station;

sending sensing measurement configuration information to a target sensing base station;

and sending switching response information to the first sensing function node, wherein the switching response information comprises indication information for indicating whether the first sensing function node continues to use the current sensing signal sending node and/or the sensing signal receiving node.

The following is a description of the relevant definitions to which the application relates.

The definition of the sensing function node (SF) will be described first.

In an embodiment of the present application, optionally, the first sensing function node includes at least one of the following functions:

1) Receiving a sensing service request, and determining a required sensing measurement quantity according to the sensing service request;

in an embodiment of the present application, optionally, the sensing measurement includes at least one of a first level measurement, a second level measurement, a third level measurement, and a fourth level measurement. As will be described in detail below.

In an embodiment of the present application, optionally, the sensing measurement includes tag information, and the tag information includes at least one of the following: sensing signal identification information, sensing measurement configuration identification information, sensing service information, data subscription identification, measurement volume usage, time information, sensing node information, sensing link information, measurement volume description information and measurement volume index information.

2) Receiving a perception measurement result (namely, a value of a perception measurement quantity), generating a perception result according to the perception measurement result, and responding to a perception service request according to the perception result;

in the embodiment of the present application, optionally, when the sensing function node has the following functions, the sensing function node is referred to as a basic sensing function node: a perceived measurement (i.e., a value of a perceived measurement) is received, wherein the perceived measurement is a first level measurement and/or a second level measurement, and a perceived result (a third level measurement) is generated in response to the perceived service request.

In the embodiment of the present application, optionally, when the sensing function node has the following functions, the sensing function node is derived: a perceived measurement (i.e., a value of a perceived measurement) is received, wherein the perceived measurement is a third level measurement, and a perceived result (fourth level measurement) is generated in response to the perceived service request.

In the embodiment of the present application, optionally, when the sensing function node has the following functions, the sensing function node is referred to as a comprehensive sensing function node: a perceived measurement (i.e., a value of a perceived measurement) is received, wherein the perceived measurement is a first level measurement and/or a second level measurement and/or a third level measurement, and a perceived result (a fourth level measurement) is generated in response to the perceived service request.

3) The control of the perceived service quality, namely facing to the perceived service quality requirement, controls the perceived related node so as to meet the perceived service QoS requirement.

4) Determining at least one of a sensing signal transmitting node, a sensing signal receiving node, a sensing auxiliary node and a sensing service demand node;

a perceived signal transmitting node or receiving node in a mobile communication system includes a network device (e.g., a base station) and a UE (e.g., a handset). Wherein the sensing auxiliary node refers to sensing information such as other sensors and the like for providing sensing assistance, and geographic position information and the like for improving wireless sensing performance.

5) Determining a perception link;

the perceived link may include at least one of: uu link (base station sending sensing signal UE receiving or UE sending sensing signal base station receiving), ideal link (inter-UE receiving sensing signal), echo link (base station self-receiving sensing signal, UE self-receiving sensing signal), inter-base station receiving and transmitting link (inter-base station receiving and transmitting sensing signal).

6) Determining a perception mode;

the sensing means may comprise at least one of: the base station transmits a sensing signal UE to receive, the UE transmits a sensing signal to receive, the base station transmits a self-receiving sensing signal, the UE transmits and receives a sensing signal, the base station transmits and receives a sensing signal, and the UE transmits a self-receiving sensing signal.

7) Determining a perception signal;

in the embodiment of the present application, the sensing signal includes a reference signal and/or a data signal, wherein the reference signal may be a communication reference signal or a sensing dedicated reference signal.

8) Determining time-frequency resources used by sensing;

optionally, the perceived resource includes at least one of: unused time-frequency resources (e.g., guard bands) in the communication, shared time-frequency resources (e.g., reference signals or data signals) used in the communication, and dedicated time-frequency resources are perceived. Further, the configuration of the sensing signal needs to be determined, and the potential configuration includes time domain, frequency domain and space domain resource information of the sensing signal. And if the node for sensing the time-frequency resource is not the sensing signal transmitting node, transmitting the sensing signal configuration to the sensing signal transmitting node.

9) Determining a configuration of the perceived measurement;

the configuration of the perceived measurement may include at least one of: the sensing signal indication to be measured, the sensing signal quantity or time to be measured, the reporting indication of the measurement result and the like. If it is determined that the node of the perceived measurement configuration is not a receiving and measuring node of the perceived signal, the perceived measurement configuration is transmitted to a perceived signal receiving node.

10 Determining and configuring transmission channels for reporting the sensing measurement results, including establishing, modifying or releasing the transmission channels, etc.

11 Determining an AMF;

after the network side (NEF or AMF, etc.) determines the sensing function node according to the geographical range of the requested sensing service and the geographical range of the sensing service provided by the sensing function node, the sensing function node needs to determine the AMF under at least one of the following conditions: 1) When the UE is a sensing signal transmitting node or a sensing signal receiving node or a sensing auxiliary node, and the sensing target is a certain UE, the sensing function node selects an AMF based on a geographical area to be sensed and a tracking area identifier (Tracking Area Identity, TAI) of the AMF requested from the NRF, and/or an AMF ID or location (position), etc.; 2) When the sensing data needs to be transmitted through the AMF (for example, defined as NAS message or NAS layer is used as a transport bearer protocol layer of the sensing data), the sensing function node selects the AMF based on the sensing node geographical location information (such as Tracking Area (TA)) of the sensing node of the required transmission data, and according to TAI of the AMF requested from the NRF, and/or AMF ID or location; 3) When the sensing target is 3GPP UE, the sensing function node determines AMF according to UE identification (such as AMF UE NGAP ID) and the like.

12 Maintaining a sense node context;

13 Maintaining a perceived service context.

The definition of the perceptual measurement is explained below.

In an embodiment of the present application, optionally, the sensing measurement includes at least one of the following;

1) First-order measurement quantity

The first-stage measurement quantity is a received signal or original channel information, and comprises the following steps: comprising the following steps: receiving a signal or channel response complex result, amplitude or phase, an I path or Q path and an (I path or Q path) operation result thereof, wherein the operation comprises at least one of addition, subtraction, multiplication, matrix addition, multiplication, matrix transposition, trigonometric relation operation, square root operation, power operation and the like, and a threshold detection result, a maximum/minimum value extraction result and the like of the operation result; the operation further includes at least one of fast fourier transform (Fast Fourier Transform, FFT)/inverse fast fourier transform (Inverse Fast Fourier Transform, IFFT), discrete fourier transform (Discrete Fourier Transform, DFT)/inverse discrete fourier transform (Inverse Discrete Fourier Transform, IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform, digital filtering, and the like, and threshold detection result, maximum/minimum value extraction result, and the like of the above operation result;

2) Second-stage measurement quantity

The second-stage measurement quantity is a basic measurement quantity, including: delay, doppler, angle, intensity, and multi-dimensional combined representations thereof; the delay, doppler, angle and intensity are calculated as data of one dimension, and the multidimensional combination is any combination of two, three or four, such as a delay Doppler spectrum (the delay and Doppler form a two-dimensional coordinate system, and the secondary measurement quantity can be a coordinate point of the two-dimensional coordinate system, or can be a coordinate point plus an intensity value at the coordinate point), a delay angle spectrum and the like.

3) Third level of measurement

The third level measurement is a basic attribute or state, comprising: at least one of distance, speed, orientation, radar cross-sectional area (Radar Cross Section, RCS), acceleration, etc.;

4) Fourth-stage measurement quantity

The fourth level measurement is a further attribute or state comprising: spatial location, whether or not a target is present, trajectory, motion, expression, vital sign, quantity, imaging result, weather, air quality, shape, material, composition.

In an embodiment of the present application, optionally, the sensing measurement includes tag information, and the tag information includes at least one of the following: the sensing signal identification information, the sensing measurement configuration identification information, the sensing service information (e.g., sensing service ID), the data subscription identification, the measurement volume usage (e.g., communication, sensing, or sense), the time information, the sensing node information (e.g., UE ID, node location, device orientation), the sensing link information (e.g., sensing link sequence number, transceiving node identification), the measurement volume specification information (e.g., form and resource information, e.g., form such as amplitude, phase, complex number, resource information such as antennas, antenna pairs, antenna groups, physical resource blocks (Physical Resource Block, PRBs), symbols), and measurement volume index information (e.g., signal-to-noise ratio (Signal to Noise Ratio, SNR) or sensing SNR).

The definition of the sense node context is explained below.

The sensing node context refers to that a sensing node (a sensing signal transmitting node, a sensing signal receiving node or a sensing auxiliary node) is identified as an index, and at least one of the following information is included:

1) The sensing node identification is used for indexing when each network function node uses sensing context. When the sensing node is a UE, the potential identification may include at least one of: subscription permanent identity (Subscription Permanent Identifier, SUPI), globally Unique Temporary Identity (GUTI), AMF UE NGAP ID, RAN UE NGAP ID, etc.; when the aware node is a base station, the potential identity is a cell ID or the like.

2) And the sensing service area is used for representing the area where the sensing node is willing to provide sensing service. For example, a user has signed a perceptual authorization agreement with only a certain operator and pays for providing a perceptual service to the UE. The sensing service should be terminated when the UE moves out of its area where it is willing to provide the sensing service.

3) And the sensing service limiting area is used for representing the sensing service limiting area of the sensing node. For example, the user does not provide a perception service or does not provide one or several perception services in certain areas, etc.

4) And the access-allowed sensing function node type is used for indicating the sensing function node type which is allowed to be accessed by the sensing node. The sensing function node type comprises the basic sensing function, the derivative sensing function and the comprehensive sensing function for providing basic sensing results and derivative sensing results. Optionally, derived perceptual functions may be further differentiated according to perceived content, e.g. into macroscopic and refinement perceptual classes

5) The sensing node and the first sensing function node are used for representing a sensing data related transmission channel list between the sensing node and the sensing function node, the information can comprise a transmission channel identification and a transmission network protocol layer of sensing data, and if the transmission network protocol layer relates to a NAS or UP transmission channel, the information also needs to comprise identification information of AMF or SMF or UPF.

6) The assumed sensing service context is used to represent one or more sensing service contexts that the sensing node is assuming or performing so that continuity of the assuming or performing sensing service can be maintained after the sensing function node switches.

7) The assumed sensing functions comprise one or more of a sensing signal transmitting node, a sensing signal receiving and measuring node and a sensing auxiliary node

8) Perceptual capability information.

The definition of the perceived service context is explained below.

In the embodiment of the present application, optionally, the perceived service context refers to that the perceived service identifier is used as an index, and includes at least one of the following information:

1) And the perceived service identifier is used for indexing when each network function node uses the perceived service context.

2) Perception target identification

If the perceived service is perceived to a certain target, the perceived service context includes a perceived target identification. Where the perceived target is a UE, the potential identification may include at least one of: SUPI, GUTI, AMF UE NGAP ID, RAN UE NGAP ID, etc.; when the perceived target is a non-UE, the potential identification may include at least one of: geographic location information, radar cross-sectional area (Radar Cross section, RCS), etc., may be represented by latitude and longitude and altitude, for example, for a period of time.

3) Sensing geographic location ranges

If non-target, a certain geographical location range is perceived. The perceived geographical range may be a Tracking Area (TA), an access network notification area (RAN-based Notification Area, RNA), a cell identification (cell ID), or a geographical location range, etc.

4) The perceived service demander may be represented by a perceived service demander identification or an IP address, etc.

5) Perceived quality of service (Quality of Service, qoS) information

Performance metrics for sensing a sensing target region or sensing object, including at least one of: sensing resolution (which may further include at least one of ranging resolution, angular resolution, speed measurement resolution, imaging resolution), sensing accuracy (which may further include at least one of ranging accuracy, angular accuracy, speed measurement accuracy, positioning accuracy, etc.), sensing range (which may further include at least one of ranging range, speed measurement range, angular range, imaging range, etc.), sensing delay (time interval from sensing signal transmission to obtaining sensing result, or time interval from sensing demand initiation to obtaining sensing result), sensing update rate (time interval between performing sensing twice and obtaining sensing result), detection probability (probability of being correctly detected in the presence of a sensing object), false alarm probability (probability of erroneously detecting a sensing object in the absence of a sensing object), and the like.

6) The sensing mode used by the first sensing function node

The sensing means may include: the base station transmits a sensing signal UE to receive, the UE transmits a sensing signal to receive, the base station transmits self-receiving, the base station transmits and receives the inter-UE, the inter-base station transmits and receives the inter-UE, and the UE transmits self-receiving.

7) A sensing signal transmitting node and/or a sensing signal receiving node used by the first sensing function node

If only one sensing signal transmitting node and/or receiving node information is provided, the first sensing function node provides the last sensing signal transmitting node and/or receiving node used before the switching; alternatively, the time series information of a plurality of sensing signal transmitting nodes and/or receiving nodes used in a certain period of time may be also used.

8) Sensing signal configuration information used by the first sensing function node

9) And the first sensing function node uses sensing measurement configuration information.

In an embodiment of the present application, the configuration of the sensing measurement quantity may include at least one of the following: the sensing signal indication to be measured, the sensing signal quantity or time to be measured, the reporting indication of the measurement result and the like. If it is determined that the node of the perceived measurement configuration is not a receiving and measuring node of the perceived signal, the perceived measurement configuration is transmitted to a perceived signal receiving node.

The definition of perceptibility is explained below.

Wireless perceptibility information of a device in a communication perception integrated scene is an information set for representing whether the device can execute a specific perception service and surrounding a performance level which can be reached by the specific perception service, and the perceptibility comprises: the first set of capabilities and/or the second set of capabilities. The first set of capabilities is a set of device capabilities (Sensing-Enhanced Ability Set) enhanced for perceptual functions; the second set of capabilities is a Sensing-Specific Ability Set specific set of device capabilities.

In an embodiment of the present application, optionally, the first capability set includes at least one of the following:

1) Frequency dependent capability

Optionally, the frequency dependent capability includes at least one of:

a band (band) or a band group (band combination) supporting a sensing function, and a corresponding bandwidth;

each band or group of bands supports the transceiving capability of the perceptual signal: comprising the following steps: the method comprises the steps of supporting the transmission of a sensing signal, supporting the reception of the sensing signal, supporting the transmission and the reception of a time-sharing sensing signal and supporting the simultaneous transmission and the reception of the sensing signal;

each band or group of bands supports a separate number of radio frequency channels or antennas or antenna layout for sensing signal reception or transmission.

2) Power-related capability

Optionally, the power-related capability includes at least one of:

the supported perceived signal power level, perceived signal maximum peak power, and/or perceived signal maximum average power;

the maximum transmission time duty cycle of the supported sensing signal and/or the maximum transmission power of the given transmission time duty cycle of the sensing signal;

whether the power adaptive adjustment of the sensing signal is supported or not, the step size of the power control is 1dB, and the range of the power control is-50 dBm to 23dBm;

whether a maximum power back-off mechanism is supported, and if so, a supported maximum power back-off value.

3) Beam correlation capability

Optionally, the beam correlation capability includes at least one of:

whether or not a perceptual signal transmit beam scan or a receive beam scan is supported;

whether perceptual signal transmit beam selection or receive beam selection is supported;

whether perceptual signal transmit beam adaptation or receive beam adaptation is supported;

whether transmit beamforming or receive beamforming of the perceived signal is supported;

whether or not to support perceptual signal beam measurements and beam reporting.

In an embodiment of the present application, optionally, the second capability set includes at least one of the following:

1) Sensing specific radio frequency capabilities

Optionally, sensing the specific radio frequency capability includes at least one of:

whether bandwidth splicing of the sensing signal and corresponding signal processing are supported or not; the bandwidth splicing refers to the generation, transmission, reception and processing of the sensing signal by using discontinuous frequency bands so as to achieve specific sensing performance requirements.

Whether simultaneous multi-beam transmission is supported, the multi-beam includes: communication beam, perception beam, communication perception beam;

sensing the switching speed of the wave beam, and carrying out capacity grade division according to the wave beam switching time;

whether to support perceived signal hopping; if the frequency hopping of the sensing signals is supported, the frequency hopping between the sensing signal periods or the frequency hopping between the sensing signal frames is further supported;

the sensing signal period refers to the time for transmitting and receiving the sensing signal once, and is a basic unit for sensing signal time dimension resource scheduling;

the sensing signal frame comprises a plurality of sensing signal periods, and the specific sensing signal periods are set according to sensing requirements.

2) Supported awareness traffic types

Optionally, the supported perceived service types include at least one of:

Whether radar detection service is supported, further comprising: radar speed measurement, radar ranging, radar angle measurement and radar imaging;

whether user positioning and tracking services are supported;

whether or not three-dimensional reconfiguration services are supported, further comprising: reconstructing topography and building surface;

whether weather and/or air quality detection services are supported, further comprising: rainfall detection, humidity detection, particulate matter (PM 2.5/PM 10) detection, and snowfall detection;

whether to support a traffic/traffic detection service;

whether health monitoring services are supported, further comprising: heartbeat monitoring and breath detection;

whether or not the action recognition service is supported, further comprising: gesture recognition, gesture recognition and intrusion detection;

whether or not sensing signal transmission or reception based on radio frequency identification (Radio Frequency Identification, RFID) or backscatter (backscatter) is supported.

3) Supported perceptual signal waveforms

Optionally, the supported perceptual signal waveform comprises at least one of:

31 A) a communication signal comprising at least one of: NR signals, wi-Fi signals;

if the NR signal is supported as the sense signal, further comprising: supporting a communication data signal as a sensing signal, a supporting reference signal or a synchronization signal (a synchronization signal block (Synchronization Signal and PBCH block, SSB) or a channel state information reference signal (Channel State Information Reference Signal, CSI-RS) or a demodulation reference signal (Demodulation Reference Signal, DMRS) or a Phase-tracking reference signal (Phase-tracking reference signal, PTRS) or a channel sounding reference signal (Sounding Reference Signal, SRS) or a positioning reference signal (Positioning Reference Signals, PRS)) as a sensing signal;

If Wi-Fi signals are supported as the sense signals, further comprising: supporting communication data signals as sensing signals, supporting reference signals or synchronization signals (preambles) or CSI-RS as sensing signals;

32 A) a sense signal comprising at least one of: frequency Modulated Continuous Wave (FMCW) radar signals, orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) radar signals (including phase encoded OFDM radar signals), chirped (LFM) signals, simple burst signals, phase encoded radar signals, etc., or other signal waveforms designed specifically for perception;

33 A sense-of-general signal including a reference signal designed for a sensing function, including at least one of: periodic reference signals, aperiodic reference signals, full bandwidth reference signals;

further, supporting the above-mentioned sense signal waveforms is divided into: support transmission of the sense signal waveform, support reception of the sense signal waveform, support time-sharing transmission and reception of the sense signal waveform, support simultaneous transmission and reception of the sense signal waveform.

4) Supported perceptual measurement

Optionally, the supported perceptual measurement quantity comprises at least one of:

Original channel information: compressed quantized information of the channel matrix H or H, channel state information (Channel State Information, CSI), e.g., the square and/or phase of the amplitude/magnitude of the frequency domain channel response, or I-and Q-signal characteristics of the frequency domain channel response, e.g., the square of the amplitude/magnitude of the I-and/or Q-signal;

signal strength information: for example, including a reference signal received power (Reference Signal Received Power, RSRP) and/or a received signal strength indication (Received Signal Strength Indication, RSSI);

spectral information: a channel Power Delay Profile (PDP), a doppler Power Profile, a Power angle Profile (Power Azimuth Spectrum, PAS), pseudo-spectrum information (e.g., MUSIC Profile), a delay-doppler two-dimensional Profile, a delay-doppler-angle three-dimensional Profile;

multipath information: the power, phase, time delay and angle information of each path (at least including a first-order path, an LOS path, a first-order reflection path and a multi-order reflection path) in the multipath channel;

angle information: angle of arrival, angle of departure (including UE side angle information, base station side angle information, and reflection point angle information);

difference information of the corresponding signals of different antennas: the projection operation of the quotient or the conjugate multiplication of the frequency domain channel response of the first antenna and the second antenna (or the amplitude or the phase of the quotient or the conjugate multiplication of the frequency domain channel response of the first antenna and the second antenna, or the I-path or the Q-path of the quotient or the conjugate multiplication of the frequency domain channel response of the first antenna and the second antenna, or the projection operation of the quotient or the conjugate multiplication of the frequency domain channel response of the first antenna and the second antenna can be I-cos (theta) +q-sin (theta), wherein theta is a certain angle value, different theta corresponds to different projections, I represents I-path data, Q represents Q-path data), the amplitude ratio or the amplitude difference of the received signals of the first antenna and the second antenna, the phase difference of the signals of the first antenna and the second antenna, and the time delay difference of the signals of the first antenna and the second antenna;

Target parameter information determined based on the original channel information: doppler spread, doppler shift, maximum delay spread, angle spread, coherence bandwidth, coherence time.

In addition to the above-described measurement amounts, a new measurement amount generated by performing an operation based on two or more of the above-described measurement amounts is included.

5) Supported perceptual indicators

Optionally, the supported perception indicators include at least one of:

perceived coverage: on the premise of meeting certain requirements, the device executes the space range which can be covered by the specific perception service, for example: a distance range of radar detection, a regional range of weather detection, and the like;

perceived resolution: in a particular dimension, a device executing a particular awareness service can distinguish two different objects or events or attributes from each other, such as: ranging resolution, angular resolution, speed resolution, etc.;

perceptual precision (or perceptual error): the error rule between the target or event or attribute obtained by the device executing the specific perception service and the corresponding real value thereof can be expressed as an absolute value or standard deviation, for example: ranging errors, rainfall rate measurement errors in weather detection, and the like;

Perceived latency correlation capability: comprising the following steps: the time delay from the moment of receiving the sensing demand to the moment of sending the sensing signal, the time delay from the moment of receiving the sensing demand to the moment of receiving the sensing signal, the time delay from the moment of receiving the sensing signal to the moment of completing the generation of the sensing measurement quantity, and the time delay from the moment of receiving the sensing signal to the moment of reporting the sensing measurement quantity; the sensing time delay is quantized into a plurality of symbol periods or other time units, and the sensing signal time delay supported by the equipment is described by sensing measurement quantity or sensing measurement quantity sets, namely, the UE can report different sensing time delays corresponding to each measurement quantity or each measurement quantity set; the sensing signal receiving time comprises a starting time or an ending time of sensing signal receiving; the sensing signal transmitting time comprises a starting time or an ending time of sensing signal transmitting;

detection probability: when a specific target exists or an event occurs, the device executes a sensing service and correctly detects the probability of the occurrence of the target; for example: the probability that personnel can be correctly detected when invading in the intrusion detection;

false alarm probability: when a specific target does not exist or an event does not occur, the device executes a sensing service and reports the probability of the existence of the target or the occurrence of the event by mistake; for example: when no personnel invade in the invasion detection, the equipment reports the probability of personnel invasion.

6) Supported perceptually relevant control or scheduling capabilities

Optionally, the supported perceptually relevant control or scheduling capability includes at least one of:

whether simultaneous scheduling of communication and perceived control information is supported, comprising: simultaneously scheduling communication only, simultaneously scheduling sensing only, simultaneously scheduling communication and sensing, simultaneously scheduling communication sensing integration; the scheduling sensing comprises that equipment receives control information, and the control information scheduling equipment detects downlink sensing signals or transmits uplink sensing signals; scheduling communications includes the device receiving control information that schedules the device to receive downstream data or to transmit upstream data.

The number of services simultaneously supported in a time unit includes: simultaneously supporting two aspects of service number and time-sharing service number; the method is further divided into: the number of simultaneously supported sensing services, the number of simultaneously supported sensing signal waveforms, the number of simultaneously detected sensing signals, and the number of simultaneously supported/processed sensing measurements;

whether to support the indication and/or reporting of the perceived service type, and/or perceived signal waveform, and/or perceived measurement with physical layer signaling;

the physical layer buffer memory size is used for sensing data temporary storage.

7) Ability to perceptually relevant auxiliary information

Optionally, the ability to perceptually relevant auxiliary information includes at least one of:

71 Mobility of the device itself): by motion characteristics that a device may have, a particular perceived service has certain requirements on the motion characteristics of the device executing the service, such as: positioning services typically require that the device be stationary or moving at a low speed, while synthetic aperture radar imaging services require that the device have a certain speed of movement; mobility of devices can be categorized as follows: stationary devices (e.g., base stations, transmit-receive points (Transmission Reception Point, TRP), wi-Fi routers, etc.), low-speed devices (e.g., smart home devices), medium-speed devices (e.g., cell phones (follower movement)), high-speed devices (e.g., vehicle-mounted radar).

72 Acquisition capability and accuracy of position/attitude/motion information of the device itself: in the communication perception integration, many cases need to use the position/gesture/motion information of the device, and the acquisition capability and accuracy of the position/gesture/motion information of the device determine the type of perception service that can execute the characteristics, for example: location services require devices to have higher accuracy location information, while weather-aware services have lower requirements for device location information (e.g., location errors may be on the order of tens of meters).

The following describes an example of the switching method of the sensing function according to the present application in connection with a specific application scenario.

Embodiment 1A method for switching a Sensing Function (SF) caused by switching a UE (sensing the UE unchanged, SF changed)

The present embodiment assumes that the perceived UE movement causes a change in the perceived function node when it causes a cell handover. The sensing UE comprises at least one of a UE serving as a sensing signal sending node, a sensing signal receiving node, a sensing auxiliary information providing node or a sensing service demand node. This embodiment focuses on how the sensing function node (SF) determines that a cell handover occurs for a sensing UE and how to perform the sensing function node handover for the sensing UE.

If the sensing UE is switched, the SF obtains switching information of the sensing UE, and determines whether SF switching is needed or not according to target base station information, target AMF (advanced mobile unit function) and/or target UP (unified power flow) function (e.g. UPF) information in the switching information of the sensing UE. If SF switching is needed, determining a target SF, and transmitting sensing node context information of sensing UE to the target SF by a source SF, and/or transmitting SF switching indication, and/or transmitting target SF information to the sensing UE, and/or transmitting sensing ending identification to the sensing UE and/or a source base station. The SF handover indication is used for indicating whether the UE needs to be connected or analyze the information unit of the target SF, for example, when the SF handover indication is 1, the UE further analyzes the information unit of the target SF; when the handover indication is 0, it means that the UE does not need to perform SF handover, and does not need to analyze the information element of the target SF. The sensing end identifier is used for indicating the sensing UE and/or the source base station to stop sending sensing data to the source SF, and deleting a transmission channel (such as PDU session, radio bearer, etc.) between the sensing UE and/or the source base station and the source SF.

And the target SF sends the time-frequency resource information used by the sensing to the target sensing base station according to the received sensing context information of the sensing UE. If the sensing mode is self-receiving or receiving and transmitting among the UE, the target sensing base station distributes corresponding sensing resources for the sensing UE according to the received sensing time-frequency resource information. If the target sensing base station is a transmitting node or a receiving node of the sensing reference signal, the target sensing base station transmits the sensing reference or receives the sensing signal according to the received sensing time-frequency resource information and measures. When the target sensing base station is a sensing signal receiving node, the target SF also needs to send sensing measurement configuration information to the target sensing base station. And sensing is performed between the sensing UE and the target sensing base station according to the configuration of the target SF, so that continuity of the ongoing sensing service in the UE switching process is ensured.

In this embodiment, the source SF obtains the handover information of the sensing terminal by at least one of the following methods:

the source SF subscribes the switching information of the sensing terminal to the AMF; when the AMF receives a handover message (e.g., N2 Path Switch Request or Handover required) sent by the RAN node, if the message is a perceived UE handover subscribed to by the source SF, the AMF sends handover information for the UE to the SF.

A source SF receives switching information of the sensing terminal sent by the sensing terminal; in the embodiment of the application, when sensing that the UE receives the switching command of the base station, switching information is sent to SF, and the switching information packet at least comprises target base station information, target AMF and/or target UP function information of UE switching

And the source SF receives the switching information of the sensing terminal sent by the source base station of the sensing terminal. In the embodiment of the application, a source base station of a sensing UE sends switching information of the sensing UE to a source SF connected with the source base station, wherein the switching information at least comprises a sensing UE identification, target base station information of UE switching, target AMF and/or target UP function information.

In this embodiment, the source SF sends the information of the target SF to the sensing UE by at least one of the following means:

the source SF transmits information of the target SF to the sensing UE through DL NAS PDU, for example, additional information unit.

The source SF sends the information of the target SF to the sensing UE through the information unit defined in the sensing protocol, and if the sensing protocol carries out transmission through the NAS, the NAS layer of the target SF information unit is not resolved.

The target SF information at least comprises target SF identification information, and is used for sensing that the UE is switched and then sending a message to the target SF.

Embodiment 2A method for switching a perception function caused by movement of a perception target

The present embodiment assumes that the perception target moves out of the service range of the current perception function node, thereby causing the perception function node to change. This embodiment focuses on how the sensing function node (SF) determines how to determine that the sensing target moves out of the service range of the current sensing function node and how to perform the sensing function node switch.

In this embodiment, the sensing signal transmitting node or the sensing signal receiving node is classified into two types, namely an edge node and a center node, according to the location of the sensing signal transmitting node or the sensing signal receiving node and the service range of the sensing function node. The edge node refers to the edge of the service range of the sensing function where the sensing signal transmitting node or the sensing signal receiving node is located, and when the edge node senses, the sensing target movement may cause the sensing target to move the service range of the current sensing function. The central node refers to the sensing signal transmitting node or the sensing signal receiving node located in a non-edge area of the service range of the sensing function, and when the central node senses, the sensing target movement may cause the change of the sensing signal transmitting node and/or the sensing signal receiving node, but still is located in the service range of the sensing function node.

When the perceived target has mobility and is perceived by the edge node, the SF determines whether SF switching is needed according to the perceived measurement result and/or the movement information of the perceived target. The moving information of the perception target comprises at least one of the position, the moving direction and the moving speed of the perception target. For example, the SF determines that the switching of the sensing signal transmitting node and/or the sensing signal receiving node may need to be performed according to the sensing measurement result, and further determines that the sensing target moves out of the service range of the current sensing function according to the location, the moving direction, and the like of the sensing target, so as to determine that the switching of the SF needs to be performed. If SF switching is needed, determining a target SF, and transmitting sensing service context information to the target SF by a source SF.

The target SF can quickly complete the sensing related configuration information according to the received sensing service context, and the sensing service continuity is ensured. Optionally, the target SF sends a handover response message, where the handover response message includes at least one of whether the target SF continues to use the current sense signal sending node and whether the target SF continues to use the current sense signal receiving node. If the target SF continues to use the current sense signal transmitting node or receiving node, the source SF transmits information of the target SF to the sense signal transmitting node or receiving node. If the target SF does not use the current sensing signal transmitting node or the receiving node, the source SF transmits a sensing end identification to the corresponding sensing signal transmitting node or sensing signal receiving node. The sensing end identifier is used for the sensing signal transmitting node or the sensing signal receiving node to stop sensing signal transmission or transmit sensing data to the source SF and delete a transmission channel (such as PDU session, radio bearer, etc.) between the sensing end identifier and the source SF.

Optionally, the source SF obtains the motion information of the perceived target by at least one of the following means:

1) The source SF determines a sensing signal receiving node for sensing the movement information of the sensing target, sends sensing measurement configuration information to the sensing signal receiving node, and determines the movement information of the sensing target according to the sensing measurement result sent by the sensing signal receiving node; the sense signal receiving node may be the same as or different from the sense node being used. For example, the information to be perceived on the perception target is track tracking, and then the SF can multiplex the same perception node and perception measurement quantity; for example, if an obstacle with a range of 10 meters near the sensing target needs to be sensed, it may be necessary to determine that a new sensing signal transmitting node and a receiving node sense movement information of the sensing target.

The movement information of the perception target includes at least one of a position, a movement direction, a movement speed, and the like.

2) The source SF requests movement information of the sensing target from an application function or other sensing function node.

Optionally, the source SF information may send the target SF information to the sensing signal sending node and/or the receiving node by at least one of the following manners:

1) The source SF can send target SF information to the sensing UE through DL NAS PDU when the sensing node UE is in the sensing state by expanding the existing interface (N1 interface or N2 interface, etc.); if the sensing node is a base station, the target SF information can be sent to the sensing base station through the N2 interface.

2) The source SF transmits target SF information through an information unit defined in a sensing protocol, and the transmission layer transmits the target SF information in the sensing protocol. The transport layer may be NAS or SCTP/IP, etc.

Wherein the target SF information includes at least target SF identification information, which may be represented by an identifier such as SF ID or IP address.

Embodiment 3A method for switching a sensing function triggered by a sensing function

In this embodiment, the sensing function determines whether SF handover is required according to the resource and performance information of the sensing function. The resource and performance information of the awareness functionality includes at least one of: at least one of computing resource information (such as CPU resource utilization, GPU resource utilization, memory utilization, etc.), perceived traffic load information (such as perceived function can process N perceived traffic at most, current traffic coincidence is 80%), perceived performance monitoring information (such as perceived latency performance, perceived accuracy performance, etc.). The SF may request the resources and performance information from internal resources and performance information or from a network management function or other network functions, such as a computing function. If SF switching is needed, determining a target SF, and transmitting sensing service context information to the target SF by a source SF.

Embodiment 4A method for switching a perception function based on separation of a perception control and a user function

In this embodiment, the function of receiving the sensing measurement result (i.e., the value of the sensing measurement quantity) and generating the sensing result is referred to as a sensing user function. As described above, the basic sensing function, the derivative sensing function, and the integrated sensing function are classified according to the sensing measurement result and the sensing result used. Functions other than the above-described ones called a perception user function are called a perception control function. According to the conventional deployment experience of a mobile communication network, if a control function and a user function are separately defined as different network functions (such as SMF and UPF), one control plane function typically corresponds to a plurality of user plane functions. The foregoing embodiments 1 to 3 are based on the fact that all the functions responsible for the sensing function nodes need to be switched, and when the situation that sensing control and user functions are separated is considered, a situation may occur in which only the sensing user functions need to be switched, while the sensing control functions remain unchanged. This embodiment focuses on how to perform a perceived user function switch.

The perception control function node determines whether to switch the perception user function according to at least one of the switching information of the perception UE, the moving information of the perception target, the resource and the performance information of the perception function. And if the user function switching is needed, determining the target user function. The perception control function node sends target perception user function identification information to the perception signal receiving node. Optionally, the source-aware user function sends a perception end identifier to the perception signal receiving node, or the source-aware user function sends historical perception data to the target-aware user function. The end of sense flag is used for the sense signal receiving node to stop sending the sense measurement data to the source sense user function and to delete the transmission channel (e.g. PDU session, radio bearer, etc.) between itself and the source SF. The historical sensing data refers to a historical sensing measurement result reported by the sensing node (UE or base station), and for some situations that the sensing result can be generated only based on the historical sensing measurement result in a period of time, the historical sensing data is helpful for the target sensing function node to still quickly generate the sensing result after the sensing function node is switched, and all sensing data in the required time is not required to be accumulated again.

In the above embodiments, the wireless communication sensing procedure and the sensing function node switching procedure may be referred to, and the two procedures are briefly described below.

(1) Wireless communication aware process profile

Step 1: a Sensing Function (SF), a network function responsible for receiving a sensing request and providing a sensing result, may be other names), receives a sensing request, where the sensing request includes, but is not limited to, one or more of the following information:

perception target area: refers to a position area where a perception object may exist, or a position area where imaging or three-dimensional reconstruction is required;

perception object type: and classifying the perception objects according to possible motion characteristics of the perception objects, wherein each perception object type comprises information such as the motion speed, the motion acceleration, the typical RCS and the like of typical perception objects.

Perception target object: providing identification information of a perception object when perceiving one or more perception target objects, wherein the potential identification modes comprise: a characteristic identifier on a distance, speed and angle spectrum or a network-identifiable-based UE ID identifier;

perceived QoS: performance metrics for sensing a sensing target region or sensing object, including at least one of: sensing resolution (which may further include at least one of ranging resolution, angular resolution, speed measurement resolution, imaging resolution), sensing accuracy (which may further include at least one of ranging accuracy, angular accuracy, speed measurement accuracy, positioning accuracy, etc.), sensing range (which may further include at least one of ranging range, speed measurement range, angular range, imaging range, etc.), sensing delay (time interval from sensing signal transmission to obtaining sensing result, or time interval from sensing demand initiation to obtaining sensing result), sensing update rate (time interval between performing sensing twice and obtaining sensing result), detection probability (probability of being correctly detected in the presence of a sensing object), false alarm probability (probability of erroneously detecting a sensing object in the absence of a sensing object), and the like.

Step 2: the SF is responsible for controlling the perceived quality of service (QoS), i.e. the perceived quality of service requirements are oriented, and the perceived related nodes are controlled, thereby satisfying the perceived QoS requirements.

Step 3: the SF and/or base station determines the perceived link or perceived manner, which may include: the base station transmits a sensing signal UE to receive, the UE transmits a sensing signal to receive, the base station transmits self-receiving, the base station transmits and receives the inter-UE, the inter-base station transmits and receives the inter-UE, and the UE transmits self-receiving. The SF and/or base station determines a sensing signal transmitting node and/or a receiving node, which includes network equipment (e.g., base station) and UE (e.g., handset) in the mobile communication system. For example, the SF determines that the sensing mode is that the base station transmits and receives the UE, the base station A is selected as a sensing signal transmitting node, and the SF and the base station jointly determine that the UE1 and the UE2 are sensing signal receiving nodes.

Step 4: the SF and/or base station determine a sense signal, the potential sense signal comprising a reference signal and/or a data signal, wherein the reference signal may be a communication reference signal or a sense-specific reference signal.

Step 5: the SF and/or the base station determine to perceive the used time-frequency resources, and the potential perceived resources include unused time-frequency resources (e.g., guard bands) in the communication, shared time-frequency resources (e.g., reference signals or data signals) used in the communication, and perceive dedicated time-frequency resources. Further, the configuration of the sensing signal needs to be determined, and the potential configuration includes time domain, frequency domain and space domain resource information of the sensing signal. And if the node for sensing the time-frequency resource is not the sensing signal transmitting node, transmitting the sensing signal configuration to the sensing signal transmitting node.

Step 6: the SF and/or base station determine a configuration of perceived measurement quantities, the potential configuration comprising at least one of: the method comprises the steps of indicating a sensing signal to be measured, the quantity or time of the sensing signal to be measured, reporting the measurement result, sensing measurement constraint conditions (which means that sensing measurement can be carried out under the condition of meeting one or more constraint conditions), wherein potential constraint condition items comprise the signal-to-noise ratio/signal-to-drying ratio of a receiving signal, the signal-to-noise ratio of a target sensing signal component and other sensing signal components, the ratio of a channel response amplitude value of a target sensing delay interval to the amplitude value of other delay intervals, and the like. If it is determined that the node of the perceived measurement configuration is not a receiving and measuring node of the perceived signal, the perceived measurement configuration is transmitted to a perceived signal receiving node.

Step 7: the SF and/or the base station determine and configure a transmission channel for reporting the sensing measurement result, including establishing, modifying or releasing the transmission channel, etc.

Step 8: SF receives the sensing measurement result and generates sensing result, responds to sensing service request

(2) Switching flow of sensing function node

The 3GPP access-based awareness function node handover mainly includes an Xn-based Inter-NG-RAN handover (Xn based Inter NG-RAN handover) and an N2-based Inter-NG-RAN node N2-based handover. Depending on whether the User Plane (UP) function is to be modified or not, the Xn-based inter-NG-RAN handover is divided into a non-UP function reassignment procedure (Xn based inter NG-RAN handover without User Plane function re-assignment, see fig. 4), an intermediate UPF (User Plane Function ) insertion procedure (Xn based inter NG-RAN handover with insertion of intermediate UPF) and an intermediate UPF reassignment procedure (Xn based inter NG-RAN handover with re-allocation of intermediate UPF). It can be seen from the flowchart that in the handover process, it is mainly determined which PDU session is accepted/rejected and maintenance of access network tunnel information is performed, so that the UE session management context is updated. The flow and the interaction information do not consider whether the UE is sensing, for example, the UE is a transmitting node or a receiving node of sensing signals.

The N2-based NG-RAN handover is divided into a preparation phase and an execution phase, the preparation phase is shown in fig. 5, and the flow chart shows that the handover preparation phase, except for the maintenance of the UP plane information such as PDU session, if the handover access and mobility management function (Access and Mobility Management Function, AMF) is required, the UE context information is interacted between the source AMF (S-AMF) and the destination AMF (T-AMF). Similarly, in the existing handover procedure and the interaction information, whether the UE is sensing is not considered, for example, the UE is a transmitting node or a receiving node of the sensing signal.

The above-mentioned switching method of the sensing function in the embodiment of the present application is applicable to 5.5G or 6G systems, or other future communication networks.

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

Referring to fig. 6, an embodiment of the present application further provides a switching device 60 for sensing functions, including:

the executing module 61 is configured to execute at least one of the following operations in a case where it is determined that the switching of the sensing function node is required:

In the embodiment of the application, under the condition that the switching device of the sensing function determines that the switching of the sensing function node is required, the first switching information is sent to the switched second sensing function node and/or the switching indication of the switching sensing function node, the information of the second sensing function node and/or the sensing ending indication are sent to the sensing node, so that the target sensing function node can continuously provide the ongoing sensing service, the continuity of the sensing service is ensured, and the sensing node can quickly interact with the second sensing function node, and the quality of the sensing service in the switching process is ensured.

Optionally, the switching device 60 for sensing functions further includes:

the first determining module is used for determining that the node switching of the sensing function is required according to at least one of switching information of the sensing terminal, moving information of a sensing target and resource and performance information of the sensing function.

Optionally, the sensing terminal is at least one of a sensing signal sending node, a sensing signal receiving node, a sensing auxiliary node and a sensing service demand node.

Optionally, the handover information of the sensing terminal includes at least one of an identifier of the sensing terminal, target base station information, target AMF information and target user plane function information of the sensing terminal handover.

Optionally, the switching device 60 for sensing functions further includes:

the first acquisition module is used for acquiring the switching information of the perception terminal through at least one of the following modes:

subscribing the switching information of the sensing terminal to an AMF;

receiving switching information of the sensing terminal sent by the sensing terminal;

and receiving switching information of the sensing terminal sent by a source base station of the sensing terminal.

Optionally, the movement information of the perception target includes at least one of a position, a movement direction, and a movement speed of the perception target.

Optionally, the switching device 60 for sensing functions further includes:

the second acquisition module is used for acquiring the movement information of the perception target through at least one of the following modes:

determining a sensing signal receiving node for sensing the movement information of the sensing target, sending sensing measurement configuration information to the sensing signal receiving node, and determining the movement information of the sensing target according to a sensing measurement result sent by the sensing signal receiving node;

requesting movement information of the perception target from an application function or other perception function node.

Optionally, the first determining module is configured to determine, according to a sensing measurement result sent by the sensing signal receiving node, whether the sensing signal sending node and/or the sensing signal receiving node need to be switched; if it is determined that the switching of the sensing signal transmitting node and/or the sensing signal receiving node is required, determining whether the sensing target moves out of the service range of the first sensing function node according to the movement information of the sensing target; and if the fact that the perception target moves out of the service range of the first perception function node is determined, determining that the perception function node switching is needed.

Optionally, the switching device 60 for sensing functions further includes:

the second determining module is used for determining that the perception target is a non-stationary perception target, and the current perception signal sending node and/or the perception signal receiving node are edge nodes; the edge node refers to an edge of the service range of the first sensing function node where the sensing signal transmitting node and/or the sensing signal receiving node are/is located, and when the edge node senses, movement of the sensing target may cause the sensing target to move out of the service range of the first sensing function node.

Optionally, the resource and performance information of the perceived function includes at least one of computing resource information, perceived traffic load information, and perceived performance detection information.

Optionally, the switching device 60 for sensing functions further includes:

and the request module is used for requesting the network function node for the resource and performance information of the perceived function.

Optionally, the first switching information includes at least one of a sensing node context, a sensing service context, and historical sensing data, and the historical sensing data includes at least one of a historical sensing result, a historical sensing measurement result, and historical sensing auxiliary information.

Optionally, the perceived node context includes at least one of the following information: the method comprises the steps of sensing node identification, sensing service area, sensing service limiting area, sensing function node type allowing access, sensing data transmission channel information of sensing nodes and first sensing function nodes, sensing service context, sensing function and sensing capability.

Optionally, the sensing capability includes a first capability set and/or a second capability set, where the first capability set is a device capability set with enhanced sensing function, and the second capability set is a device capability set with enhanced sensing function.

Optionally, the first set of capabilities includes at least one of: frequency correlation capability, power correlation capability, and beam correlation capability.

Optionally, the second set of capabilities includes at least one of: sensing specific radio frequency capabilities, supported sensing traffic types, supported sensing signal waveforms, supported sensing measurements, supported sensing indicators, supported sensing related control or scheduling capabilities, sensing related auxiliary information capabilities.

Optionally, the perceived service context includes at least one of the following information: the method comprises the steps of sensing service identification, sensing target identification, sensing geographic position range, sensing service demand side, sensing QoS information, sensing mode used by a first sensing function node, sensing signal sending node and/or sensing signal receiving node used by the first sensing function node, sensing signal configuration information used by the first sensing function node and sensing measurement configuration information used by the first sensing function node.

Optionally, the executing module 61 is configured to send the information of the second sensing function node to a sensing node by at least one of the following ways:

the sensing node comprises a sensing terminal, and the first sensing function node sends information of the second sensing function node to the sensing terminal through a downlink NAS PDU;

the first sensing function node sends information of the second sensing function node to the sensing node through an information unit defined in a sensing protocol.

Optionally, the switching device 60 for sensing functions further includes:

the receiving module is used for receiving switching response information sent by the second sensing function node, and the switching response information comprises indication information for indicating whether the current sensing signal sending node and/or the sensing signal receiving node is continuously used;

the executing module 61 is configured to send information of the second sensing function node to the sensing signal sending node and/or the sensing signal receiving node if the handover response information includes indication information for indicating to continue using the current sensing signal sending node and/or the sensing signal receiving node;

And/or

And if the switching response information comprises indication information for indicating that the current sensing signal transmitting node and/or the sensing signal receiving node is not continuously used, sending a sensing ending indication to the sensing signal transmitting node and/or the sensing signal receiving node.

Optionally, the switching device 60 of the sensing function includes a sensing user function node and a sensing control function node;

the sensing control function node is configured to execute a portion executed by the executing module 61 and determined that the sensing function node needs to be switched;

the user-aware function node is configured to perform a portion of the execution performed by the execution module 61 for performing at least one of the following operations, including:

sending a sensing function node switching instruction to the sensing node;

and sending a sensing end instruction to the sensing node.

Optionally, the switching device 60 of the sensing function includes at least one of the following functions:

Receiving a sensing service request, and determining a required sensing measurement quantity according to the sensing service request;

receiving a perception measurement result, generating a perception result according to the perception measurement result, and responding to a perception service request according to the perception result;

control of perceived quality of service;

determining at least one of a sensing signal transmitting node, a sensing signal receiving node, a sensing auxiliary node and a sensing service demand node;

determining a perception link;

determining a perception mode;

determining a perception signal;

determining time-frequency resources used by sensing;

determining a configuration of the perceived measurement;

determining and configuring a transmission channel for reporting a sensing measurement result;

determining AMF;

maintaining a perceived node context;

a perceived service context is maintained.

Optionally, the perceived measurement includes at least one of a first level measurement, a second level measurement, a third level measurement, and a fourth level measurement.

Optionally, the perceived measurement includes tag information, the tag information including at least one of: sensing signal identification information, sensing measurement configuration identification information, sensing service information, data subscription identification, measurement volume usage, time information, sensing node information, sensing link information, measurement volume description information and measurement volume index information.

Optionally, the receiving the sensing measurement result, generating a sensing result according to the sensing measurement result, and responding to the sensing service request according to the sensing result includes at least one of the following:

The switching device of the sensing function in the embodiment of the application can be an electronic device, for example, an electronic device with an operating system, or can be a component in the electronic device, for example, an integrated circuit or a chip.

The switching device for sensing functions provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 2, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Referring to fig. 7, an embodiment of the present application further provides a switching device 70 for sensing functions, including:

a receiving module 71, configured to receive first switching information sent by a first sensing function node;

and the configuration module 72 is configured to perform perceptually relevant configuration according to the first switching information.

In the embodiment of the application, the switching device of the sensing function receives the first switching information sent by the first sensing function node and carries out sensing related configuration, so that the on-going sensing service can be continuously provided, and the continuity of the sensing service is ensured.

Optionally, the configuration module 72 is configured to perform at least one of:

The switching device for sensing functions provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 3, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

As shown in fig. 8, the embodiment of the present application further provides a communication device 80, including a processor 81 and a memory 82, where the memory 82 stores a program or an instruction that can be executed on the processor 81, for example, when the communication device 80 is a first sensing function node, the program or the instruction is executed by the processor 81 to implement the steps of the sensing function switching method embodiment executed by the first sensing function node, and the same technical effects can be achieved. When the communication device 80 is the second sensing function node, the program or the instruction implements each step of the sensing function switching method embodiment executed by the second sensing function node when executed by the processor 81, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides communication equipment, which comprises a processor and a communication interface, wherein the processor is used for executing at least one of the following operations under the condition that the need of switching the sensing function nodes is determined:

The communication device embodiment corresponds to the method embodiment executed by the first sensing function node, and each implementation process and implementation manner of the method embodiment are applicable to the communication device embodiment and can achieve the same technical effect.

The embodiment of the application also provides communication equipment, which comprises a processor and a communication interface, wherein the communication interface is used for receiving first switching information sent by the first perception function node; the processor is used for performing perception related configuration according to the first switching information. The communication device embodiment corresponds to the method embodiment executed by the second sensing function node, and each implementation process and implementation manner of the method embodiment can be applied to the communication device embodiment, and the same technical effects can be achieved.

The embodiment of the application also provides communication equipment. As shown in fig. 9, the network side device 90 includes: a processor 91, a network interface 92 and a memory 93. The network interface 92 is, for example, a common public radio interface (common public radio interface, CPRI). Specifically, the network side device 90 of the embodiment of the present application further includes: instructions or programs stored in the memory 93 and capable of running on the processor 91, the processor 91 invokes the instructions or programs in the memory 93 to execute the method executed by each module shown in fig. 6 or fig. 7, and achieve the same technical effects, and are not repeated here.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned embodiment of the sensing function switching method, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

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

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running programs or instructions, the processes of the switching method embodiment of the sensing function can be realized, the same technical effect can be achieved, and the repetition is avoided, and the description is omitted here.

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

The embodiment of the present application further provides a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above-mentioned embodiment of the sensing function switching method, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides a communication system, which comprises: the first sensing function node can be used for executing the steps of the switching method of the sensing function executed by the first sensing function node, and the second sensing function node can be used for executing the steps of the switching method of the sensing function executed by the second sensing function node.

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

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

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

Claims

1. A method for switching a sensing function, comprising:

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

the first sensing function node determines that the sensing function node is required to be switched according to at least one of switching information of the sensing terminal, moving information of a sensing target and resource and performance information of a sensing function.

3. The method of claim 2, wherein the sensing terminal is at least one of a sensing signal transmitting node, a sensing signal receiving node, a sensing auxiliary node, and a sensing service demand node.

4. The method according to claim 2, wherein the handover information of the aware terminal includes at least one of an identity of the aware terminal, target base station information of the aware terminal handover, target access and mobility management function AMF information and target user plane function information.

5. The method according to claim 2, wherein the first sensing function node determines that the sensing function node needs to be switched according to the switching information of the sensing terminal, and further comprises:

the first perception function node subscribes switching information of the perception terminal to an AMF;

the first perception function node receives switching information of the perception terminal, which is sent by the perception terminal;

and the first perception function node receives switching information of the perception terminal, which is sent by a source base station of the perception terminal.

6. The method of claim 2, wherein the movement information of the perceived target includes at least one of a position, a movement direction, and a movement speed of the perceived target.

7. The method according to claim 2, wherein the first sensing function node determines that the sensing function node is required to be switched according to the movement information of the sensing target, and further comprising:

the first perception function node determines a perception signal receiving node for perceiving the movement information of the perception target, sends perception measurement configuration information to the perception signal receiving node, and determines the movement information of the perception target according to the perception measurement result sent by the perception signal receiving node;

the first perception function node requests the application function or other perception function nodes for the movement information of the perception target.

8. The method of claim 2, wherein the first sensing function node determining that a sensing function node switch is required according to the movement information of the sensing target comprises:

9. The method of claim 8, wherein the first sensing function node determines that a sensing function node switch is required according to the movement information of the sensing target, and further comprising:

the first perception function node determines that the perception target is a non-stationary perception target, and the current perception signal sending node and/or the perception signal receiving node is an edge node;

the edge node refers to an edge of the service range of the first sensing function node where the sensing signal transmitting node and/or the sensing signal receiving node are/is located, and when the edge node senses, movement of the sensing target may cause the sensing target to move out of the service range of the first sensing function node.

10. The method of claim 2, wherein the resource and performance information of the perceived function includes at least one of computing resource information, perceived traffic load information, perceived performance detection information.

11. The method of claim 2, wherein the first sensing function node determines that a sensing function node switch is required according to the resource and performance information of the sensing function, and further comprising:

the first perception function node requests the network function node for the resource and performance information of the perception function.

12. The method of claim 1, wherein the first handover information comprises at least one of a perceived node context, a perceived service context, and historical perceived data comprising at least one of a historical perceived result, a historical perceived measurement, a historical perceived assistance information.

13. The method of claim 12, wherein the perceived node context includes at least one of the following information: the method comprises the steps of sensing node identification, sensing service area, sensing service limiting area, sensing function node type allowing access, sensing data transmission channel information of sensing nodes and first sensing function nodes, sensing service context, sensing function and sensing capability.

14. The method of claim 13, wherein the perceived capabilities include a first set of capabilities that are a perceived-function-enhanced set of device capabilities and/or a second set of capabilities that are a perceived-specific set of device capabilities.

15. The method of claim 14, wherein the first set of capabilities comprises at least one of: frequency correlation capability, power correlation capability, and beam correlation capability.

16. The method of claim 14, wherein the second set of capabilities comprises at least one of: sensing specific radio frequency capabilities, supported sensing traffic types, supported sensing signal waveforms, supported sensing measurements, supported sensing indicators, supported sensing related control or scheduling capabilities, sensing related auxiliary information capabilities.

17. The method according to claim 12 or 13, wherein the perceived service context comprises at least one of the following information: the method comprises the steps of sensing service identification, sensing target identification, sensing geographic position range, sensing service demand side, sensing QoS information, sensing mode used by a first sensing function node, sensing signal sending node and/or sensing signal receiving node used by the first sensing function node, sensing signal configuration information used by the first sensing function node and sensing measurement configuration information used by the first sensing function node.

18. The method of claim 1, wherein the first sensing function node sends the information of the second sensing function node to a sensing node by at least one of:

19. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the first sensing function node further comprises, after sending the first switching information to the second sensing function node: the first sensing function node receives switching response information sent by the second sensing function node, wherein the switching response information comprises indication information for indicating whether to continue to use the current sensing signal sending node and/or the sensing signal receiving node;

and/or

20. The method of claim 1, wherein the first sensing function node comprises a sensing user function node and a sensing control function node;

the first sensing function node determining that sensing function node switching is needed includes: the sensing control function node determines that the sensing function node switching is required;

sending a sensing function node switching instruction to the sensing node;

and sending a sensing end instruction to the sensing node.

21. The method of claim 1, wherein the first perception function node comprises at least one of the following functions:

control of perceived quality of service;

determining a perception link;

determining a perception mode;

determining a perception signal;

determining time-frequency resources used by sensing;

determining a configuration of the perceived measurement;

determining AMF;

maintaining a perceived node context;

A perceived service context is maintained.

22. The method of claim 21, wherein the perceived measurement includes at least one of a first level measurement, a second level measurement, a third level measurement, and a fourth level measurement.

23. The method of claim 21, wherein the perceived measurement includes label information comprising at least one of: sensing signal identification information, sensing measurement configuration identification information, sensing service information, data subscription identification, measurement volume usage, time information, sensing node information, sensing link information, measurement volume description information and measurement volume index information.

24. The method of claim 22, wherein receiving the sensing measurement results, generating a sensing result based on the sensing measurement results, and responding to the sensing service request based on the sensing result comprises at least one of:

25. A method for switching a sensing function, comprising:

26. The method of claim 25, wherein the first handover information comprises at least one of a perceived node context, a perceived service context, and historical perceived data comprising at least one of a historical perceived result, a historical perceived measurement, a historical perceived assistance information.

27. The method of claim 25, wherein the second sensing function node performs a sensing related configuration according to the first switching information including at least one of:

28. A switching device for sensing functions, comprising:

29. A switching device for sensing functions, comprising:

30. A communication device comprising a processor and a memory storing a program or instructions executable on the processor, the program or instructions implementing the steps of the method of switching a perceptual function of any one of claims 1 to 24 when executed by the processor, or the program or instructions implementing the steps of the method of switching a perceptual function of any one of claims 25 to 27 when executed by the processor.

31. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the method of switching a perceptual function of any one of claims 1 to 24, or the steps of the method of switching a perceptual function of any one of claims 25 to 27.