Perception information acquisition method and device, network element equipment and storage medium

Abstract

The invention relates to a perception information acquisition method and device, network element equipment and a storage medium. The method is applied to a sensing function (SF) network element, and comprises the following steps: receiving a subscription request sent by an application function (AF) network element; the subscription request is used for indicating to subscribe perception information of perception equipment; and based on the subscription request, sensing information of the sensing device is fed back to the AF. By adopting the method, the problem of unbalanced load of the sensing network can be solved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, device, network element equipment and storage medium for acquiring perception information. Background Art

[0002] With the development of perception services, application functional network elements need to obtain a large amount of perception information through the perception network.

[0003] In the conventional technology, a session connection is established between the application function network element and the perception terminal, and the perception information acquired by the perception terminal is transmitted to the application function network element. However, the conventional technology has the problem of load imbalance of the perception network. Summary of the invention

[0004] The embodiments of the present application provide a method, apparatus, network element device and storage medium for acquiring perception information, which can solve the problem of unbalanced load in the perception network.

[0005] In a first aspect, an embodiment of the present application provides a method for acquiring perception information, the method being applied to a perception function SF network element, the method comprising:

[0006] Receiving a subscription request sent by an application function AF network element; the subscription request is used to indicate the perception information of the subscription perception device;

[0007] Based on the subscription request, the perception information of the perception device is fed back to the AF.

[0008] In one embodiment, the method further includes:

[0009] According to the subscription request, the perception information of the perception device is obtained from the information stored in the SF itself.

[0010] In one embodiment, the method further comprises:

[0011] If there is a missing part in the perception information obtained from the information stored in the SF itself, sending an acquisition request to the perception device;

[0012] The missing part of the sensing information sent by the sensing device based on the acquisition request is received.

[0013] In one embodiment, receiving the missing part of the perception information sent by the perception device based on the acquisition request includes:

[0014] Receive the missing part of the perception information sent by the perception device through the user plane function UPF network element.

[0015] In one embodiment, the subscription request includes subscription requirement information, and the method further includes:

[0016] According to the subscription requirement information, it is determined whether the missing part exists in the information stored in the SF itself.

[0017] In one of the embodiments, the subscription request includes a subscription configuration file and identification information of the sensing device.

[0018] In one of the embodiments, the subscription profile includes subscription requirement information, and the subscription requirement information includes the type, amount of information, timeliness and perception range of the perception information.

[0019] In one embodiment, the subscription request is used to indicate subscription to the perception information of multiple perception devices, and the method further includes:

[0020] Determining the priority of acquiring each of the perception information according to the timeliness of each of the perception information;

[0021] Determining, according to the priority of each of the perception information, a sending order of sending the acquisition requests to the multiple perception devices;

[0022] The acquisition request is sent to the multiple sensing devices according to the sending order.

[0023] In one embodiment, the method further comprises:

[0024] Receive the address information of the perception device sent by the perception device through the access and mobility management function AMF network element.

[0025] In one embodiment, feeding back the perception information of the perception device to the AF includes:

[0026] Encapsulating the address information and the perception information into a subscription notification;

[0027] The subscription notification is sent to the AF.

[0028] In one embodiment, the receiving a subscription request sent by an application function AF network element includes:

[0029] The subscription request is received, which is sent by the AF through a network open function NEF network element and a policy control function PCF network element.

[0030] In a second aspect, an embodiment of the present application further provides a method for acquiring perception information, the method being applied to AF, the method comprising:

[0031] Send a subscription request to SF; the subscription request is used to indicate the perception information of the subscription perception device;

[0032] Receive the perception information of the perception device fed back by the SF based on the subscription request.

[0033] In a third aspect, an embodiment of the present application further provides a method for acquiring perception information, the method being applied to NEF, the method comprising:

[0034] Receive a subscription request sent by the AF; the subscription request is used to indicate the perception information of the subscription perception device;

[0035] The subscription request is sent to the PCF, so that the PCF sends the subscription request to the SF.

[0036] In one embodiment, the method further comprises:

[0037] receiving a subscription notification sent by the SF, where the subscription notification includes the perception information of the perception device and the address information of the perception device;

[0038] Receive the configuration file of the AF sent by the PCF, and send the subscription notification to the AF based on the configuration file.

[0039] In one of the embodiments, the configuration file includes identification information of the AF.

[0040] In a fourth aspect, an embodiment of the present application further provides a method for acquiring perception information, the method being applied to PCF, the method comprising:

[0041] Receive a subscription request sent by the NEF; the subscription request is used to indicate the perception information of the subscription perception device;

[0042] The subscription request is sent to SF.

[0043] In one embodiment, the subscription request includes identification information of the sensing device; and sending the subscription request to the SF includes:

[0044] Determining the identification information of the SF according to the identification information and a preset registration table;

[0045] The subscription request is sent to the SF based on the identification information of the SF.

[0046] In one embodiment, the method further comprises:

[0047] receiving a push request and a push range sent by the SF; the push request is used to instruct to push the perception information of the perception device;

[0048] In response to the push request, a configuration file of the AF is generated according to the push scope, and the configuration file is sent to the NEF.

[0049] In a fifth aspect, an embodiment of the present application further provides a method for acquiring perception information, the method being applied to UPF, the method comprising:

[0050] receiving a missing portion of the sensing information sent by the sensing device in response to the acquisition request;

[0051] The missing part of the sensing information is sent to the SF.

[0052] In a sixth aspect, an embodiment of the present application further provides a device for acquiring perception information, the device being applied to SF, the device comprising:

[0053] A first receiving module is used to receive a subscription request sent by an application function AF network element; the subscription request is used to indicate the perception information of the subscription perception device;

[0054] The first sending module is used to feed back the perception information of the perception device to the AF based on the subscription request.

[0055] In a seventh aspect, an embodiment of the present application further provides a device for acquiring perception information, the device being applied to AF, the device comprising:

[0056] A fourth sending module is used to send a subscription request to the SF; the subscription request is used to indicate the perception information of the subscription perception device;

[0057] The fourth receiving module is used to receive the perception information of the perception device fed back by the SF based on the subscription request.

[0058] In an eighth aspect, an embodiment of the present application further provides a device for acquiring perception information, the device being applied to NEF, and the device comprising:

[0059] A fifth receiving module is used to receive a subscription request sent by the AF; the subscription request is used to indicate the perception information of the subscription perception device;

[0060] The fifth sending module is used to send the subscription request to the PCF, so that the PCF sends the subscription request to the SF.

[0061] In a ninth aspect, an embodiment of the present application further provides a device for acquiring perception information, the device being applied to PCF, the device comprising:

[0062] An eighth receiving module, configured to receive a subscription request sent by the NEF; the subscription request is used to indicate the perception information of the subscription perception device;

[0063] The seventh sending module is used to send the subscription request to SF.

[0064] In a tenth aspect, an embodiment of the present application further provides a device for acquiring perception information, the device being applied to a UPF, the device comprising:

[0065] A ninth receiving module, configured to receive a missing portion of the sensing information sent by the sensing device in response to the acquisition request;

[0066] An eighth sending module is used to send the missing part of the perception information to the SF.

[0067] In an eleventh aspect, an embodiment of the present application further provides a network element device, including: a receiver and a transmitter;

[0068] The receiver is used to receive a subscription request sent by an application function AF network element; the subscription request is used to indicate the perception information of the subscription perception device;

[0069] The transmitter is used to feed back the perception information of the perception device to the AF based on the subscription request.

[0070] In a twelfth aspect, an embodiment of the present application further provides a network element device, including: a transmitter and a receiver;

[0071] The transmitter is used to send a subscription request to the SF; the subscription request is used to indicate the perception information of the subscription perception device;

[0072] The receiver is configured to receive the perception information of the perception device fed back by the SF based on the subscription request.

[0073] In a thirteenth aspect, an embodiment of the present application further provides a network element device, including: a receiver and a transmitter;

[0074] The receiver is used to receive a subscription request sent by the AF; the subscription request is used to indicate the perception information of the subscription perception device;

[0075] The transmitter is configured to send the subscription request to the PCF, so that the PCF sends the subscription request to the SF.

[0076] In a fourteenth aspect, an embodiment of the present application further provides a network element device, including: a receiver and a transmitter;

[0077] The receiver is used to receive a subscription request sent by the NEF; the subscription request is used to indicate the perception information of the subscription perception device;

[0078] The sender is used to send the subscription request to the SF.

[0079] In a fifteenth aspect, an embodiment of the present application further provides a network element device, including: a receiver and a transmitter;

[0080] The receiver is configured to receive the missing portion of the sensing information sent by the sensing device in response to the acquisition request;

[0081] The transmitter is used to send the missing part of the perception information to the SF.

[0082] In the sixteenth aspect, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the method described in the first aspect, the second aspect, the third aspect, the fourth aspect and the fifth aspect above are implemented.

[0083] In the seventeenth aspect, an embodiment of the present application further provides a computer program product, including a computer program, characterized in that when the computer program is executed by a processor, the steps of the method described in the first aspect, the second aspect, the third aspect, the fourth aspect and the fifth aspect are implemented.

[0084] The above-mentioned method, apparatus, network element device and storage medium for acquiring perception information receive, through SF, a subscription request sent by AF for indicating subscription to the perception information of the perception device, so that SF can feed back the perception information of the perception device to AF based on the subscription request. Compared with the traditional technology, in the method for acquiring perception information provided by the present application, since SF can feed back the perception information of the perception device to AF according to the received subscription request, there is no need for the perception device to feed back the perception information of the perception device to AF in real time when receiving the perception data request from AF. Instead, when the network load is relatively low, SF can obtain the perception information of the perception device according to the subscription request and feed it back to AF, thereby avoiding the problem that a large amount of perception information is transmitted to the network side in a short time, resulting in the short-term load of SF being too large and unable to process the perception information in time, thereby solving the problem of load imbalance of the perception network. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] Figure 1 A diagram of an application environment of a method for acquiring perception information in an embodiment;

[0086] Figure 2 is a flow chart of a method for acquiring perception information in one embodiment;

[0087] Figure 3 is a flow chart of a method for acquiring perception information in another embodiment;

[0088] Figure 4 is a flow chart of a method for acquiring perception information in another embodiment;

[0089] Figure 5 is a flow chart of a method for acquiring perception information in another embodiment;

[0090] Figure 6 is a flow chart of a method for acquiring perception information in another embodiment;

[0091] Figure 7 is a flow chart of a method for acquiring perception information in another embodiment;

[0092] Figure 8 is a flow chart of a method for acquiring perception information in another embodiment;

[0093] Fig. 9 is a flow chart of a method for acquiring perception information in another embodiment;

[0094] Fig.10 is a flow chart of a method for acquiring perception information in another embodiment;

[0095] Fig.11 is a flow chart of a method for acquiring perception information in another embodiment;

[0096] Fig.12 is a flow chart of a method for acquiring perception information in another embodiment;

[0097] Fig.13 is a structural block diagram of a device for acquiring perception information in an embodiment;

[0098] Fig.14 is a structural block diagram of a device for acquiring perception information in another embodiment;

[0099] Fig.15 is a structural block diagram of a device for acquiring perception information in another embodiment;

[0100] Fig.16 is a structural block diagram of a device for acquiring perception information in another embodiment;

[0101] Fig.17 is a structural block diagram of a device for acquiring perception information in another embodiment;

[0102] Fig.18 is a structural block diagram of a device for acquiring perception information in another embodiment;

[0103] Fig.19 is a structural block diagram of a device for acquiring perception information in another embodiment;

[0104] Fig. 20 is a structural block diagram of a device for acquiring perception information in another embodiment;

[0105] Fig.21 is an internal structure diagram of a network element device in another embodiment;

[0106] Fig. 22 is an internal structure diagram of a network element device in another embodiment;

[0107] Fig.23 is an internal structure diagram of a network element device in another embodiment;

[0108] Fig.24 is an internal structure diagram of a network element device in another embodiment;

[0109] Fig.25 FIG. 4 is an internal structure diagram of a network element device in another embodiment. DETAILED DESCRIPTION

[0110] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0111] Figure 1 A schematic diagram of an application scenario for obtaining perception information provided in an embodiment of the present application. Figure 1As shown, the scenario includes a sensing function (Sensing Function, SF) network element 101, an application function (Application Function, AF) network element 102, a policy control function (Policy Control Function, PCF) network element 103, a network exposure function (Network Exposure Function, NEF) network element 104, an access and mobility management function (Access and Mobility Management Function, AMF) network element 105, a user plane function (User Plane Function, UPF) network element 106, a base station (Base Station) 107, a sensing device (Sensing UE) 108 and an auxiliary sensing device (Assistant Sensing UE) 109. Among them, AF 102 sends a subscription request to PCF 103 through NEF 104, PCF determines SF 101 corresponding to the perception device according to the subscription request and sends the subscription request to SF 101, SF 101 establishes a communication connection with Sensing UE 108 through AMF 105, UPF 106, and Base Station 107, and sends an acquisition request generated according to the subscription request to Sensing UE 108, Sensing UE 108 sends the perception information to UPF 106, and sends the address information to AMF 105, so that SF can receive the perception information sent by UPF 106 and the address information sent by AMF 105, and send the perception information and address information to NEF 104, and send the push request to PCF 103, and then NEF 104 can send the perception information and address information to AF 102 when receiving the push request sent by PEC 103. When Base Station 107 cannot establish a connection with Sensing UE 108 , it can establish a connection with Assistant Sensing UE 109 .

[0112] In services related to network perception capabilities, usually, the AF related to the perception service establishes a session connection with the perception terminal to obtain relevant perception information. Every time the perception information needs to be obtained, the AF needs to initiate a request to the network side, and the network side establishes relevant communication connections for the AF and the perception terminal. However, since the perception information obtained is very large and the number of AFs and perception terminals involved is also very large, in the actual operation process, the tidal effect of network requests and network loads is prone to occur, that is, a large number of communication connections between AFs and perception terminals appear in a short period of time, causing short-term network congestion, which not only causes a large amount of load on the SF responsible for managing network-related perception capabilities, causing the SF to be unable to process the large amount of perception information obtained in time due to excessive short-term load, but also affects other network element devices in the network, and may even affect other types of 3rd Generation Partnership Project (3GPP) terminal access. Based on this, there is a problem of load imbalance in the perception network in traditional technologies.

[0113] Through the analysis of actual perception services, it is found that some perception services have low requirements for the timeliness of perception information. Therefore, for perception services with low timeliness, the requests of these perception services can be converted into subscription push requests, and the perception information can be sent to the AF according to the timeliness requirements of the AF. Therefore, the embodiment of the present application provides a method for obtaining perception information, and the SF receives the subscription request sent by the AF to indicate the subscription of the perception information of the perception device, so that the SF can feed back the perception information of the perception device to the AF based on the subscription request. Compared with the traditional technology, in the method for obtaining perception information provided by the present application, since the SF can feed back the perception information of the perception device to the AF according to the received subscription request, the perception device does not need to feed back the perception information of the perception device to the AF immediately when receiving the perception data request from the AF. Instead, when the network load is relatively low, the SF can obtain the perception information of the perception device according to the subscription request and feed it back to the AF, thereby avoiding the problem that a large amount of perception information is transmitted to the network side in a short time, resulting in the short-term load of the SF being too large and unable to process the perception information in time, and thus solving the problem of load imbalance of the perception network.

[0114] It should be noted that the beneficial effects brought about by the embodiments of the present application or the technical problems solved are not limited to this one, but may also include other implicit or related problems. For details, please refer to the description of the following embodiments.

[0115] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0116] In one embodiment, Figure 2 As shown, a method for obtaining perception information is provided, and the method is applied to Figure 1 The following steps are used as an example to illustrate the perception function network element in FIG.

[0117] S201, receiving a subscription request sent by an application function AF network element; the subscription request is used to indicate the subscription of perception information of a perception device.

[0118] Among them, AF is a network element device used to obtain relevant perception information after registering and subscribing to SF on the network side, and deploy relevant services based on its own services using the subscribed perception information. In this embodiment, the relevant information of the perception information that AF needs to obtain can be packaged into a subscription request. Optionally, the subscription request may include the perception information that AF needs to obtain, and the perception device corresponding to the perception information. It can be understood that the perception information that AF needs to obtain can be obtained by one perception device or by multiple perception devices. Therefore, the subscription request may include perception devices corresponding to multiple perception information. Among them, the perception device refers to a terminal for obtaining perception information. The perception device can collect, process and feedback information in various environments, convert it into a digital signal and perform relevant processing. Optionally, the perception device can be a sensor; or, the perception device can also be a wearable device, which is not limited in this embodiment.

[0119] In this embodiment, the SF may receive a subscription request sent by the AF through the core network, and thereby obtain the perception information of the perception device required by the AF according to an instruction of the received subscription request.

[0120] S202: Based on the subscription request, the perception information of the perception device is fed back to the AF.

[0121] It should be noted that, in the embodiment of the present application, the AF can convert the request for obtaining perception information into a subscription request and send the subscription request to the SF. After receiving the subscription request, the SF can respond to the subscription request according to the actual load situation of the SF.

[0122] In this embodiment, the SF may obtain the perception information from the corresponding perception device according to the subscription request when the load is low, and feed back the obtained perception information to the AF.

[0123] As an optional implementation, the SF may further perform data processing on the acquired perception information, and send the processed perception information to the AF according to subscription requirements, wherein the data processing may include compression processing, filtering processing, encryption processing, and the like.

[0124] In the above-mentioned method for acquiring perception information, the subscription request sent by the AF for indicating the subscription to the perception information of the perception device is received by the SF, so that the SF can feed back the perception information of the perception device to the AF based on the subscription request. Compared with the traditional technology, in the method for acquiring perception information provided by the present application, since the SF can feed back the perception information of the perception device to the AF according to the received subscription request, the perception device does not need to immediately feed back the perception information of the perception device to the AF when it receives the perception data request from the AF. Instead, when the network load is relatively low, the SF can obtain the perception information of the perception device according to the subscription request and feed it back to the AF, thereby avoiding the problem that a large amount of perception information is transmitted to the network side in a short period of time, resulting in the short-term load of the SF being too large and unable to process the perception information in time, thereby solving the problem of load imbalance of the perception network.

[0125] In the above scenario where the SF feeds back the perception information of the perception device to the AF based on the subscription request, the SF can obtain the perception information of the perception device from the information stored in itself, and feed back the obtained perception information of the perception device to the AF. In one embodiment, the above method further includes: obtaining the perception information of the perception device from the information stored in the SF itself according to the subscription request.

[0126] It is understandable that after SF obtains perception information from the perception device based on the subscription request, it can store the perception information in its own storage device. When SF receives a new subscription request, it can obtain the perception information corresponding to the subscription request from the information stored in its own storage device according to the subscription request.

[0127] In this embodiment, the SF may search for information identical to the perception information required in the subscription request from its own stored information according to the subscription request. Specifically, the SF may determine whether there is a perception device with the same identification information in its own stored information according to the identification information of the perception device in the subscription request. If there is a perception device with the same identification information, it may further determine whether the perception information of the perception device with the same identification information is consistent with the perception information in the subscription request. If they are consistent, the perception information of the perception device with the same identification information is determined as the perception information required in the subscription request, thereby obtaining the perception information of the perception device from the information stored in the SF.

[0128] In this embodiment, SF obtains the perception information of the perception device from the information stored in SF itself according to the subscription request. Compared with obtaining the perception information from the perception device, the efficiency of obtaining the perception information can be improved. In addition, since the output transmission between SF and the perception device is reduced, the network load is reduced.

[0129] In the above scenario of obtaining the perception information of the perception device from the information stored by the SF itself, the information stored by the SF itself may contain missing parts of the perception information, and the SF may also obtain the missing parts of the perception information from the perception device. Figure 3 As shown, the above method also includes:

[0130] S301: If there are missing parts in the perception information obtained from the information stored in the SF itself, a request for obtaining is sent to the perception device.

[0131] It should be noted that a subscription request may include multiple perception information of different types and requirements. The information stored in the SF itself may not include exactly the same perception information as the perception information required in the subscription request. Therefore, there may be missing parts of the perception information in the SF.

[0132] In this embodiment, when there is a missing part in the perception information obtained from the information stored by the SF itself, the SF can generate a request for obtaining the missing part of the perception information, and send the request for obtaining the missing part of the perception information to the perception device. The request for obtaining can be used to indicate the relevant content of the perception information that the perception device needs to obtain. For example, the request for obtaining can include the type, amount of information, timeliness and perception range of the perception information. It can be understood that if the perception information corresponds to multiple different perception devices, the SF can generate multiple different acquisition requests and send each acquisition request to the corresponding perception device.

[0133] As an optional generation method, before SF sends an acquisition request to the perception device, it can send an access request to UPF and AMF respectively. After receiving the access request, UPF and AMF can send an access request to the perception device through the base station, thereby establishing a communication connection between SF and the perception device. SF can send an acquisition request to the perception device through the established communication connection network.

[0134] S302, receiving the missing part of the perception information sent by the perception device based on the acquisition request.

[0135] It is understandable that after receiving the acquisition request, the perception device can collect corresponding perception information in response to the acquisition request and send the perception information to the SF.

[0136] In this embodiment, the SF may receive the missing part of the perception information sent by the perception device based on the acquisition request through a communication connection network established between the SF and the perception device.

[0137] Optionally, if the communication function of the sensing device is abnormal, the SF may also establish a communication connection with the auxiliary sensing device to receive the missing part of the sensing information sent by the auxiliary sensing device.

[0138] As an optional implementation, SF can receive the missing part of the perception information sent by the perception device through UPF. Among them, UPF is a network element device in the core network that is responsible for establishing and managing sessions, and is responsible for the routing and forwarding related functions of the perception data packets of the user plane. It can be understood that after the perception device collects the corresponding perception information based on the acquisition request, it can send the perception information to UPF, and UPF can perform corresponding service quality management on the received perception information, so that when the perception information meets the service quality management, the perception information is sent to SF. Optionally, the service quality management may include checking whether the bandwidth and data volume of the perception information match, and may also include checking the integrity of the data packet of the perception information. In this implementation, SF can receive the missing part of the perception information sent by the perception device through UPF through the network.

[0139] In this embodiment, when there are missing parts in the perception information obtained from the information stored in SF itself, SF can send an acquisition request to the perception device, so as to receive the missing part of the perception information sent by the perception device based on the acquisition request. Since SF only sends the acquisition request to the perception device corresponding to the missing part, instead of sending the acquisition request to all perception devices that need to obtain the perception information, the transmission load of the network is reduced, and the sending efficiency of sending the acquisition request is improved, thereby improving the efficiency of obtaining the missing part of the perception information, and further improving the efficiency of obtaining the perception information.

[0140] In the above scenario where the SF sends an acquisition request to a sensing device, when the SF receives multiple subscription requests, since the timeliness of the sensing information in different subscription requests is different, the SF can determine the order of sending the acquisition request according to the timeliness of each sensing information, and thus send the acquisition request to the multiple sensing devices in order. Figure 4 As shown, the subscription request is used to indicate subscription to the perception information of multiple perception devices, and the method further includes:

[0141] S401: Determine the priority of acquiring each piece of perception information according to the timeliness of each piece of perception information.

[0142] Among them, timeliness refers to the validity period of an event or information, that is, a task must be completed within a certain period of time, otherwise it will lose its validity. In this embodiment, the timeliness and priority of the perceived information can be positively correlated, that is, the stronger the timeliness of the perceived information, the higher the corresponding priority, and the weaker the timeliness of the perceived information, the higher the corresponding priority.

[0143] In this embodiment, according to the timeliness of each piece of perception information, the perception information with strong timeliness can be used as the perception information with high priority, and the perception information with low timeliness can be used as the perception information with low priority, so as to determine the priority of each piece of perception information.

[0144] S402: Determine the order of sending acquisition requests to multiple sensing devices according to the priority of each sensing information.

[0145] It is understandable that a higher priority of the perception information indicates a shorter acquisition period for the perception information, and a lower priority of the perception information indicates a longer acquisition period for the perception information. In this embodiment, the order of sending acquisition requests to multiple perception devices can be determined according to the order of priority of each perception information from high to low.

[0146] S403: Send acquisition requests to multiple sensing devices in a sending order.

[0147] It should be noted that, in this embodiment, SF can send acquisition requests to multiple sensing devices in sequence according to a determined sending order. For example, if the determined sending order of sending acquisition requests to multiple sensing devices is: acquisition request 1> acquisition request 2> acquisition request 3, then acquisition request 1 can be sent to the device corresponding to acquisition request 1 first, then acquisition request 2 can be sent to the device corresponding to acquisition request 2, and then acquisition request 3 can be sent to the device corresponding to acquisition request 3.

[0148] In this embodiment, the priority of obtaining each perception information is determined according to the timeliness of each perception information. Since the priority of each perception information can be quickly and accurately determined according to the timeliness, the sending order of sending acquisition requests to multiple perception devices can be accurately determined according to the priority of each perception information. Then, the acquisition requests can be sent to the multiple perception devices according to the sending order, and differentiated service methods can be provided for different perception services according to the timeliness of the perception information to meet the timeliness requirements of different perception services for the perception information.

[0149] In the above scenario where if there are missing parts in the perception information obtained from the information stored by the SF itself, then a request for obtaining is sent to the perception device, the SF can determine whether there are missing parts in the information stored by the SF itself according to the subscription requirement information in the subscription request. In one embodiment, the subscription request includes the subscription requirement information, and the SF can determine whether there are missing parts in the information stored by the SF itself according to the subscription requirement information. The subscription requirement information refers to the relevant requirements for the perception information required for the perception service, and optionally, the subscription requirement information may include the type, amount of information, timeliness and perception range of the perception information.

[0150] In this implementation, the SF can determine the type, amount of information, timeliness, and perception range of the perception information corresponding to the subscription request according to the subscription requirement information included in the subscription requirement, and thus determine whether there is information in its own stored information that is the same as the type, amount of information, timeliness, and perception range of the perception information according to the type, amount of information, timeliness, and perception range of the perception information, and thus determine whether there is a missing part in the information stored by itself according to the result. If there is no information in its own stored information that is the same as the type, amount of information, timeliness, and perception range of the perception information, it can be determined that there is a missing part of the perception information in the information stored by the SF itself.

[0151] In this embodiment, the SF can accurately determine whether there are missing parts in the information stored by the SF itself according to the subscription demand information, so that when there are missing parts, the SF can obtain the perception information of the missing parts from the perception device, thereby improving the accuracy of the obtained perception information.

[0152] In the scenario where the SF receives the missing part of the perception information sent by the perception device based on the acquisition request, the address information of the perception device can also be received. In one embodiment, the method further includes: receiving the address information of the perception device sent by the perception device through the access and mobility management function AMF network element.

[0153] Among them, AMF is a network element device in the core network responsible for terminal identity authentication, authorization, registration, mobility management and connection management. It can be understood that after the perception device establishes a communication connection with the SF, if the location of the perception device changes, the changed address information can be sent to the SF so that the SF can accurately send the acquisition request to the perception device next time.

[0154] In this embodiment, SF can receive the address information of the perception device sent by the perception device through the access and mobility management function AMF network element. As an optional implementation, after receiving the address information of the perception device, SF can compare the received address information of the perception device with the address information of the perception device stored by itself, and if the address information of the perception device changes, the address information of the perception device stored by itself is updated.

[0155] In this embodiment, SF receives the address information of the perception device sent by the perception device through the access and mobility management function AMF network element, and can update the stored address information of the perception device when the location of the perception device changes, thereby avoiding the problem of incorrect sending of the acquisition request.

[0156] In the above scenario of feeding back the perception information of the perception device to the AF, the SF may feed back the received address information and the perception information to the AF. Figure 5 As shown, the perception information of the perception device is fed back to the AF, including:

[0157] S501, encapsulate the address information and the perception information into a subscription notification.

[0158] Among them, encapsulation refers to the process of encapsulating data in a set of protocol headers and tails. It is understandable that if the address information of the perception device changes, SF can send the address information of the new perception device to AF. If the perception information subsequently obtained by AF changes, the address information of the new perception device can be referred to to determine a more accurate perception device. For example, the new address information of the perception device U1 is address A, and the perception information that AF needs to obtain is address B. Since address A is different from address B, the perception device of the perception information obtained by AF does not include perception device U1. If the address information of the perception device has not changed, AF can also further confirm whether the acquired perception information is correct based on the address information.

[0159] In this embodiment, the SF may encapsulate the address information and the perception information together by using the data transmission protocol between the SF and the AF, thereby forming a subscription notification.

[0160] S502: Send a subscription notification to AF.

[0161] In this embodiment, SF can send the subscription notification to AF through the network. Optionally, SF can also send the subscription notification to AF through PCF and NEF. For example, SF can send the subscription notification to NEF, and generate a push request and a push range and send them to PCF. PCF can determine the identification information of the same object, that is, AF, based on the received push request and push range, and send the pushed identification information of AF to NEF. NEF can send the subscription notification to AF after receiving the identification information of AF.

[0162] In this embodiment, SF encapsulates address information and perception information into a subscription notification, thereby being able to send the subscription notification to AF. Since the subscription notification includes not only perception information but also address information, AF can not only process corresponding perception services based on the perception information, but also further determine whether the acquired perception information is correct based on the address information, thereby improving the accuracy of subscription notifications received by AF.

[0163] In the above scenario of receiving the subscription request sent by the AF, the SF may receive the subscription request through the NEF and PCF. In one embodiment, receiving the subscription request sent by the application function AF network element includes: receiving the subscription request sent by the AF through the network opening function NEF network element and the policy control function PCF network element.

[0164] Among them, NEF is the network element device responsible for managing the core network's open network data, and PCF is the network element device responsible for supporting a unified policy framework to manage network behavior, providing policy rules to network entities for implementation, and accessing subscription information in the unified data repository (UDR).

[0165] In this embodiment, the subscription request received by the SF may be first sent by the AF to the NEF, and then the NEF forwards the subscription request to the PCF, and then the PCF sends the subscription request to the SF.

[0166] As an optional implementation, the subscription request may also include a subscription profile and identification information of the sensing device. The subscription profile refers to a profile containing subscription demand information, and the identification information of the sensing device refers to the identity document (ID) of the sensing device. Optionally, the subscription profile may include subscription demand information, and the subscription demand information may include the type, amount, timeliness and sensing range of the sensing information.

[0167] It should be noted that the core network may include multiple SFs, each of which may correspond to multiple perception devices, that is, one SF may correspond to multiple perception devices, while one perception device may correspond to only one SF. Therefore, in this embodiment, after receiving the subscription request, the PCF may compare the identification information of the perception device in the subscription request with the registration table preset in the PCF, determine the SF corresponding to each perception device, and encapsulate the subscription requirement information in the subscription request into a subscription configuration file, and send the subscription request including the subscription configuration file and the identification information of the perception device to the corresponding SF, wherein the preset registration table includes the relationship between the SF and the perception device registered in the SF.

[0168] In this embodiment, SF receives the subscription request sent by AF through the network open function NEF network element and the policy control function PCF network element. Since PCF can send the subscription request to the corresponding SF with the identification information of the perception device, it avoids sending the subscription requests of other perception devices to SF, causing confusion in the sending of perception information.

[0169] In one embodiment, Figure 6 As shown, a method for obtaining perception information is also provided, and the method is applied to Figure 1 The following steps are used as an example to illustrate the application function network element in FIG.

[0170] S601, sending a subscription request to SF; the subscription request is used to indicate the subscription of the perception information of the perception device.

[0171] Among them, SF is a network element device responsible for managing its corresponding perception functions and collecting relevant perception data, as well as storing relevant perception data and performing relevant processing on the perception data.

[0172] In this embodiment, the AF may send a subscription request to the SF through the core network, so that the SF may obtain the perception information of the corresponding perception device according to the instruction of the received subscription request.

[0173] S602, receiving the perception information of the perception device fed back by the SF based on the subscription request.

[0174] It should be noted that in the embodiment of the present application, the AF can generate a corresponding subscription request based on the perception service with lower timeliness requirements for perception information and send it to the SF. After receiving the subscription request, the SF can respond to the subscription request based on the actual load situation of the SF.

[0175] It should be noted that in order to balance the network load, SF can obtain perception information from the corresponding perception device based on a subscription request when the network load is low, so that AF can receive the perception information of the perception device fed back by SF based on the subscription request.

[0176] As an optional implementation, SF may also perform data processing on the acquired perception information, and AF may receive the perception information of the perception device after being processed by SF, wherein the data processing may include compression processing, filtering processing, encryption processing, etc.

[0177] In this embodiment, AF can generate a corresponding subscription request based on the perception information by sending a subscription request to SF to indicate the perception information of the subscription perception device, so that when the network load is low, AF can receive the perception information of the perception device fed back by SF based on the subscription request. Compared with the traditional technology, this avoids the problem of excessive network load caused by AF initiating a large number of connections with perception devices in a short period of time, thereby solving the problem of unbalanced perception network load.

[0178] In one embodiment, Figure 7 As shown, a method for acquiring perception information is also provided, which is described by taking the method applied to a network open function NEF network element as an example, and includes the following steps:

[0179] S701, receiving a subscription request sent by an AF; the subscription request is used to indicate the subscription of the perception information of the perception device.

[0180] It should be noted that NEF is a network element device responsible for managing the core network's open network data, and AF can send a subscription request to SF in the core network through NEF. In this embodiment, NEF can receive a subscription request for perception information sent by AF to indicate subscription to a perception device.

[0181] It can be understood that when there are a large number of AFs in the sensing service, the NEF may receive a subscription request sent by one AF or may receive subscription requests sent by multiple AFs.

[0182] S702: Send a subscription request to the PCF, so that the PCF sends the subscription request to the SF.

[0183] It should be noted that PCF is a network element device responsible for supporting a unified policy framework to manage network behavior, providing policy rules to network entities for implementation, and accessing subscription information in the unified data repository (UDR). Since there are multiple SFs in the network, each SF corresponds to multiple sensing devices. Therefore, after receiving a subscription request, PCF can compare the identification information of the sensing device in the subscription request with the preset registration table in PCF to determine the SF corresponding to each sensing device, and then send the subscription request to the corresponding SF.

[0184] In this embodiment, NEF can send the subscription request to PCF by receiving the subscription request sent by AF to indicate the perception information of the subscription perception device, so that PCF sends the subscription request to SF. Since NEF can receive the subscription request sent by AF and forward the subscription request to PCF, the subscription request can be sent to SF, so that SF can obtain the perception information according to the subscription request, avoiding the problem of excessive network load caused by collecting a large amount of perception information in the network in a short period of time.

[0185] In the scenario where the SF feeds back a subscription notification to the AF, the SF may send the subscription notification to the NEF, which in turn sends the subscription notification to the PCF through the NEF, and then to the AF through the PCF. Figure 8 As shown, the above method also includes:

[0186] S801, receiving a subscription notification sent by SF, where the subscription notification includes the perception information of the perception device and the address information of the perception device.

[0187] Among them, the subscription notification refers to the encapsulation and generation by SF according to the data transmission protocol between SF and AF after SF receives the perception information and address information of the perception device. Among them, the perception information of the perception device refers to the subscription request generated by AF according to the perception service and sent to SF. After receiving the subscription request, SF generates an acquisition request according to the perception information in the subscription request and sends it to the corresponding perception device, which is collected by the perception device and sent to SF. The address information of the perception device refers to the current address information of the perception device sent to SF after receiving the acquisition request.

[0188] In this embodiment, after the SF receives the perception information and address information of the perception device, the NEF may encapsulate the perception information and address information according to the data transmission protocol between the SF and the AF, and then receive the subscription notification sent by the SF.

[0189] S802, receiving the configuration file of the AF sent by the PCF, and sending a subscription notification to the AF based on the configuration file.

[0190] The AF configuration file refers to a configuration file containing relevant information of the AF. Optionally, the AF configuration file may include identification information of the AF. It is understandable that the PCF may determine the recipient of the subscription notification based on the push information sent by the received SF, that is, determine which AF the subscription notification needs to be sent to, and generate a configuration file based on the identification information of the AF.

[0191] In this embodiment, the NEF may receive the configuration file of the AF sent by the PCF, and thus may send the subscription notification to the corresponding AF according to the configuration file.

[0192] In this embodiment, NEF receives the subscription notification sent by SF, which includes the perception information of the perception device and the address information of the perception device, and can accurately send the subscription notification to AF based on the configuration file when receiving the configuration file of AF sent by PCF, thereby improving the accuracy of the subscription notification feedback from SF to AF.

[0193] In one embodiment, Fig. 9 As shown, a method for acquiring perception information is also provided, which is described by taking the method applied to a policy control function network element as an example, and includes the following steps:

[0194] S901, receiving a subscription request sent by NEF; the subscription request is used to indicate the subscription of the perception information of the perception device.

[0195] Among them, NEF is a network element device responsible for managing the core network's open network data. In this embodiment, PCF can receive the subscription request sent by NEF after NEF receives the subscription request sent by AF.

[0196] S902, sending a subscription request to SF.

[0197] The SF is a network element device responsible for managing its corresponding perception function and collecting relevant perception information, as well as storing relevant perception information and performing relevant processing on it. In this embodiment, the PCF may send the received subscription request to the SF.

[0198] As an optional implementation, after receiving the subscription request, the PCF may compare the identification information of the sensing device in the subscription request with a registration table preset in the PCF to determine the SF corresponding to each sensing device, and then send the subscription request to the corresponding SF.

[0199] In this embodiment, PCF can send the subscription request to SF by receiving the subscription request sent by NEF to indicate the perception information of the subscription perception device. Since PCF can accurately determine the SF corresponding to the perception device based on the subscription request, the accuracy of the subscription request sent by AF to SF can be improved.

[0200] In one embodiment, Fig.10 As shown, the above method also includes:

[0201] S1001, receiving a push request and a push range sent by SF; the push request is used to indicate the perception information of the push perception device.

[0202] The push request refers to a request for instructing the PCF to push the perception information of the perception device, and the push scope refers to the push object of the perception information of the perception device. It is understandable that, when the SF receives the perception information sent by the perception device, it can generate a push request and a push scope according to the subscription request corresponding to the perception information, and then send the push request and the push scope to the PCF.

[0203] In this embodiment, the PCF may receive the push request and push range sent by the SF, and determine the push object of the perception information of the perception device according to the push request of the recipient.

[0204] S1002: In response to the push request, generate a configuration file of the AF according to the push scope, and send the configuration file to the NEF.

[0205] The AF configuration file may include identification information of the AF. In this embodiment, the AF configuration file refers to a file related to the AF that feeds back the perception information of the SF perception device.

[0206] In this embodiment, the PCF may generate a configuration file including identification information of the AF according to the received push scope in response to the push request, and send the AF to the NEF.

[0207] In this embodiment, PCF receives the push request and push range sent by SF to indicate the perception information of the push perception device, can respond to the push request, generate a configuration file of AF according to the push range, and send the configuration file to NEF, so that NEF can accurately send the subscription notification to AF according to the configuration file, thereby improving the accuracy of the subscription notification sent.

[0208] In one embodiment, Fig.11 As shown, a method for acquiring perception information is also provided, which is described by taking the method applied to a user plane functional network element as an example, and includes the following steps:

[0209] S1101, receiving a missing portion of perception information sent by a perception device in response to an acquisition request.

[0210] It should be noted that, when there is a missing part of the perception information in the information stored by the SF itself, before generating an acquisition request according to the missing part and sending the acquisition request to the perception device, it is necessary to establish a communication connection with the perception device through the UPF. In this embodiment, the UPF can receive the missing part of the perception information sent by the perception device when the perception device receives the acquisition request and collects the perception information according to the acquisition request.

[0211] S1102, sending the missing part of the perception information to the SF.

[0212] In this embodiment, the UPF may send the missing part of the received perception information to the SF through the network when the missing part of the perception information is received.

[0213] As an optional implementation, when UPF receives the missing part of the perception information, it can also perform corresponding service quality management on the missing part of the perception information, so that when the perception information meets the service quality management, the missing part of the perception information is sent to SF. Optionally, the service quality management may include checking whether the bandwidth and data volume of the perception information match, and may also include checking the integrity of the data packet of the perception information.

[0214] In this embodiment, the UPF can send the missing part of the perception information to the SF by receiving the missing part of the perception information sent by the perception device in response to the acquisition request, so that the SF can receive the complete perception information.

[0215] To facilitate the understanding of those skilled in the art, the following is a detailed description of the method for obtaining the perception information provided by the present application. For example, the process of the method for obtaining the perception information can be as follows: Fig.12 The method shown may include:

[0216] S1, AF sends a subscription request to NEF, where the subscription request is used to indicate the subscription of the perception information of the perception device.

[0217] S2, NEF sends a subscription request to PCF.

[0218] S3, the PCF determines the identification information of the SF according to the identification information of the sensing device in the received subscription request and the preset registration table.

[0219] S4, PCF sends a subscription request to SF based on the identification information of SF, wherein the subscription request includes the identification information of the subscription profile and the sensing device, the subscription profile includes the subscription requirement information, and the network element subscription requirement information includes the type, amount of information, timeliness and sensing range of the network element sensing information.

[0220] S5, the SF obtains the perception information of the perception device from the information stored in itself according to the subscription requirement information included in the subscription configuration file of the received subscription request.

[0221] S6: If the subscription request is used to indicate subscription to the perception information of multiple perception devices, and the SF obtains missing parts of the perception information from its own stored information, the SF determines the priority of obtaining each perception information according to the timeliness of each perception information.

[0222] S7: Determine the order of sending acquisition requests to multiple sensing devices according to the priority of each sensing information.

[0223] S8, sending acquisition requests to multiple sensing devices in the order of sending.

[0224] S9, the sensing device sends the missing part of the sensing information to the UPF in response to the acquisition request.

[0225] S10, the sensing device sends the address information of the sensing device to the AMF in response to the acquisition request.

[0226] S11, UPF sends the missing part of the received sensing information to SF.

[0227] S12, AMF sends the received address information of the sensing device to SF.

[0228] S13, SF encapsulates the address information and perception information into a subscription notification.

[0229] S14, SF sends the subscription notification to NEF.

[0230] S15, SF sends a push request and a push range to PCF, where the push request is used to indicate the perception information of the push perception device.

[0231] S16, the PCF generates a configuration file of the AF according to the push scope in response to the push request, and sends the configuration file to the NEF.

[0232] S17, the NEF sends the received subscription notification to the AF based on the received configuration file of the AF.

[0233] It should be noted that for the descriptions in the above S1-S17, reference may be made to the relevant descriptions in the above embodiments, and the effects are similar, so this embodiment will not be repeated here.

[0234] It should be understood that, although the various steps in the above flowchart are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the above flowchart may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0235] In one embodiment, Fig.13 As shown, a device for acquiring perception information is provided, and the device is applied to SF. The device includes: a first receiving module 11 and a first sending module 12, wherein:

[0236] The first receiving module 11 is used to receive a subscription request sent by an application function AF network element; the subscription request is used to indicate the subscription of the perception information of the perception device.

[0237] The first sending module 12 is used to feed back the perception information of the perception device to the AF based on the subscription request.

[0238] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be repeated here.

[0239] In one embodiment, Fig.14 As shown, the above device also includes: an acquisition module 13, wherein:

[0240] The acquisition module 13 is used to acquire the perception information of the perception device from the information stored in the SF itself according to the subscription request.

[0241] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0242] In one embodiment, please continue to refer to Fig.14 The above device further includes: a second sending module 14 and a second receiving module 15, wherein:

[0243] The second sending module 14 is configured to send an acquisition request to the sensing device if there are missing parts in the sensing information acquired from the information stored in the SF itself.

[0244] The second receiving module 15 is used to receive the missing part of the perception information sent by the perception device based on the acquisition request.

[0245] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0246] In one embodiment, please continue to refer to Fig.14 The second receiving module 15 comprises: a first receiving unit 151, wherein:

[0247] The first receiving unit 151 is used to receive the missing part of the perception information sent by the perception device through the user plane function UPF network element.

[0248] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0249] In one embodiment, please continue to refer to Fig.14, the subscription request includes subscription requirement information, and the above device also includes: a first determination module 16, wherein:

[0250] The first determining module 16 is used to determine whether there is a missing part in the information stored in the SF itself according to the subscription demand information.

[0251] Optionally, the subscription request includes a subscription configuration file and identification information of the sensing device.

[0252] Optionally, the subscription profile includes subscription requirement information, and the subscription requirement information includes the type, amount, timeliness and perception range of the perceived information.

[0253] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0254] In one embodiment, please continue to refer to Fig.14 The subscription request is used to indicate the subscription of the perception information of multiple perception devices. The above device also includes: a second determination module 17, a third determination module 18 and a third sending module 19, wherein:

[0255] The second determining module 17 is used to determine the priority of acquiring each piece of perception information according to the timeliness of each piece of perception information.

[0256] The third determining module 18 is used to determine the order of sending acquisition requests to multiple sensing devices according to the priority of each sensing information.

[0257] The third sending module 19 is used to send acquisition requests to multiple sensing devices according to the sending order.

[0258] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0259] In one embodiment, please continue to refer to Fig.14 The above device further includes: a third receiving module 20, wherein:

[0260] The third receiving module 20 is used to receive the address information of the perception device sent by the perception device through the access and mobility management function AMF network element.

[0261] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0262] In one embodiment, please continue to refer to Fig.14 The first sending module 12 includes: an encapsulation unit 121 and a first sending unit 122, wherein:

[0263] The encapsulation unit 121 is used to encapsulate the address information and the perception information into a subscription notification.

[0264] The first sending unit 122 is configured to send a subscription notification to the AF.

[0265] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0266] In one embodiment, please continue to refer to Fig.14 The first receiving module 11 includes a second receiving unit 111, wherein:

[0267] The second receiving unit 111 is configured to receive a subscription request sent by the AF via a network opening function NEF network element and a policy control function PCF network element.

[0268] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0269] In one embodiment, Fig.15 As shown, a device for acquiring perception information is provided, and the device is applied to AF. The device includes: a fourth sending module 21 and a fourth receiving module 22, wherein:

[0270] The fourth sending module 21 is used to send a subscription request to the SF; the subscription request is used to indicate the subscription of the perception information of the perception device.

[0271] The fourth receiving module 22 is used to receive the perception information of the perception device fed back by the SF based on the subscription request.

[0272] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0273] In one embodiment, Fig.16 As shown, a device for acquiring perception information is provided, the device is applied to NEF, and the device includes: a fifth receiving module 23 and a fifth sending module 24, wherein:

[0274] The fifth receiving module 23 is used to receive a subscription request sent by the AF; the subscription request is used to indicate the subscription of the perception information of the perception device.

[0275] The fifth sending module 24 sends the subscription request to the PCF, so that the PCF sends the subscription request to the SF.

[0276] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0277] In one embodiment, Fig.17 As shown, the above device further includes: a sixth receiving module 25 and a seventh receiving module 26, wherein:

[0278] The sixth receiving module 25 is used to receive the subscription notification sent by the SF, where the subscription notification includes the perception information of the perception device and the address information of the perception device.

[0279] The seventh receiving module 26 is used to receive the configuration file of the AF sent by the PCF, and send the subscription notification to the AF based on the configuration file.

[0280] Optionally, the configuration file includes identification information of the AF.

[0281] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0282] In one embodiment, Fig.18 As shown, a device for acquiring perception information is provided, the device is applied to PCF, and the device includes: an eighth receiving module 27 and a seventh sending module 28, wherein:

[0283] The eighth receiving module 27 is used to receive a subscription request sent by the NEF; the subscription request is used to indicate the subscription of the perception information of the perception device.

[0284] The seventh sending module 28 is used to send the subscription request to the SF.

[0285] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0286] In one embodiment, Fig.19 As shown, the subscription request includes identification information of the sensing device. The seventh sending module 28 includes: a determining unit 281 and a second sending unit 282, wherein:

[0287] The determination unit 281 is used to determine the identification information of the SF according to the identification information and a preset registration table;

[0288] The second sending unit 282 is configured to send a subscription request to the SF based on the identification information of the SF.

[0289] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0290] In one embodiment, please continue to refer to Fig.19 The above device further includes: a ninth receiving module 29 and an eighth sending module 30, wherein:

[0291] The ninth receiving module 29 is used to receive the push request and push range sent by the SF; the push request is used to indicate the perception information of the push perception device;

[0292] The eighth sending module 30 is used to generate a configuration file of the AF according to the push range in response to the push request, and send the configuration file to the NEF.

[0293] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0294] In one embodiment, Fig. 20 As shown, a device for acquiring perception information is provided, the device is applied to UPF, and the device includes: a tenth receiving module 31 and a ninth sending module 32, wherein:

[0295] The tenth receiving module 31 is used to receive the missing part of the perception information sent by the perception device in response to the acquisition request.

[0296] The ninth sending module 32 is configured to send the missing part of the perception information to the SF.

[0297] The device for acquiring perception information provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

[0298] For the specific definition of the device for acquiring perceptual information, please refer to the definition of the method for acquiring perceptual information above, which will not be repeated here. Each module in the above-mentioned device for acquiring perceptual information can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0299] Fig.21A schematic diagram of the structure of a network element device provided in an embodiment of the present application. The network element device may include a receiver 31, a memory 32, a processor 33, at least one communication bus 34 and a transmitter 35. The communication bus 34 is used to realize the communication connection between the components. The memory 32 may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory. Various programs may be stored in the memory 32 to complete various processing functions and implement the method steps of this embodiment. In this embodiment, the transmitter 35 may be a radio frequency processing module or a baseband processing module in the network element device, and the receiver 31 may also be a radio frequency processing module or a baseband processing module in the network element device. The transmitter 35 and the receiver 31 may be integrated together to realize a transceiver. The transmitter 35 and the receiver 31 may be coupled to the processor 33, and they may realize the receiving or transmitting action under the instruction or control of the processor 33.

[0300] In this embodiment, the receiver is used to receive a subscription request sent by an application function AF network element; the subscription request is used to indicate the subscription of the perception information of the perception device; the transmitter is used to feed back the perception information of the perception device to the AF based on the subscription request.

[0301] In one embodiment, the processor is specifically configured to obtain the perception information of the perception device from the information stored in the SF itself according to the subscription request.

[0302] In one embodiment, the transmitter is further configured to send an acquisition request to the perception device if there is a missing part in the perception information acquired from the information stored in the SF itself; and the receiver is configured to receive the missing part of the perception information sent by the perception device based on the acquisition request.

[0303] In one embodiment, the receiver is further specifically used to receive the missing part of the perception information sent by the perception device through the user plane function UPF network element.

[0304] In one embodiment, the subscription request includes subscription requirement information, and the processor is further configured to determine whether there is a missing part in the information stored in the SF itself according to the subscription requirement information. Optionally, the subscription request includes a subscription profile and identification information of the sensing device. The optional subscription profile includes subscription requirement information, and the subscription requirement information includes the type, amount, timeliness and sensing range of the sensing information.

[0305] In one embodiment, a subscription request is used to indicate subscription to perception information of multiple perception devices. The processor is further used to determine the priority of obtaining each perception information according to the timeliness of each perception information; determine the order of sending acquisition requests to multiple perception devices according to the priority of each perception information; and the transmitter is used to send acquisition requests to multiple perception devices in the sending order.

[0306] In one embodiment, the receiver is used to receive address information of the perception device sent by the perception device through the access and mobility management function AMF network element.

[0307] In one embodiment, the sender is used to encapsulate the address information and the perception information into a subscription notification; and send the subscription notification to the AF.

[0308] In one embodiment, the receiver is used to receive a subscription request sent by the AF through a network opening function NEF network element and a policy control function PCF network element.

[0309] Fig. 22 A schematic diagram of the structure of a network element device provided in an embodiment of the present application. The network element device may include a receiver 41, a memory 42, a processor 43, at least one communication bus 44 and a transmitter 45. The communication bus 44 is used to realize the communication connection between the components. The memory 42 may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory. Various programs may be stored in the memory 42 to complete various processing functions and implement the method steps of this embodiment. In this embodiment, the transmitter 45 may be a radio frequency processing module or a baseband processing module in the network element device, and the receiver 41 may also be a radio frequency processing module or a baseband processing module in the network element device. The transmitter 45 and the receiver 41 may be integrated together to realize a transceiver. The transmitter 45 and the receiver 41 may be coupled to the processor 43, and they may realize the receiving or transmitting action under the instruction or control of the processor 43.

[0310] In this embodiment, the transmitter is used to send a subscription request to the SF; the subscription request is used to indicate the subscription of the perception information of the perception device; the receiver is used to receive the perception information of the perception device fed back by the SF based on the subscription request.

[0311] Fig.23A schematic diagram of the structure of a network element device provided in an embodiment of the present application. The network element device may include a receiver 51, a memory 52, a processor 53, at least one communication bus 54 and a transmitter 55. The communication bus 54 is used to realize the communication connection between the components. The memory 52 may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory. Various programs may be stored in the memory 52 to complete various processing functions and implement the method steps of this embodiment. In this embodiment, the transmitter 55 may be a radio frequency processing module or a baseband processing module in the network element device, and the receiver 51 may also be a radio frequency processing module or a baseband processing module in the network element device. The transmitter 55 and the receiver 51 may be integrated together to realize a transceiver. The transmitter 55 and the receiver 51 may be coupled to the processor 53, and they may realize the receiving or transmitting action under the instruction or control of the processor 53.

[0312] In this embodiment, the receiver is used to receive a subscription request sent by the AF; the subscription request is used to indicate the perception information of the subscription perception device; and the transmitter is used to send the subscription request to the PCF, so that the PCF sends the subscription request to the SF.

[0313] In one embodiment, the receiver is used to receive a subscription notification sent by the SF, the subscription notification including the perception information of the perception device and the address information of the perception device; the receiver is also used to receive the configuration file of the AF sent by the PCF, and send the subscription notification to the AF based on the configuration file. Optionally, the configuration file includes the identification information of the AF.

[0314] Fig.24 A schematic diagram of the structure of a network element device provided in an embodiment of the present application. The network element device may include a receiver 61, a memory 62, a processor 63, at least one communication bus 64 and a transmitter 65. The communication bus 64 is used to realize the communication connection between the components. The memory 62 may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory. Various programs may be stored in the memory 62 to complete various processing functions and implement the method steps of this embodiment. In this embodiment, the transmitter 65 may be a radio frequency processing module or a baseband processing module in the network element device, and the receiver 61 may also be a radio frequency processing module or a baseband processing module in the network element device. The transmitter 65 and the receiver 61 may be integrated together to realize a transceiver. The transmitter 65 and the receiver 61 may be coupled to the processor 63, and they may realize the receiving or transmitting action under the instruction or control of the processor 63.

[0315] In this embodiment, the receiver is used to receive a subscription request sent by the NEF; the subscription request is used to indicate the perception information of the subscription perception device; and the transmitter is used to send the subscription request to the SF.

[0316] In one embodiment, the subscription request includes identification information of the sensing device, and the transmitter is further configured to determine identification information of the SF according to the identification information and a preset registration table; and send the subscription request to the SF based on the identification information of the SF.

[0317] In one embodiment, the receiver is used to receive the push request and push range sent by the SF; the push request is used to indicate the perception information of the push perception device; the transmitter is used to respond to the push request, generate a configuration file of the AF according to the push range, and send the configuration file to the NEF.

[0318] Fig.25 A schematic diagram of the structure of a network element device provided in an embodiment of the present application. The network element device may include a receiver 71, a memory 72, a processor 73, at least one communication bus 74 and a transmitter 75. The communication bus 74 is used to realize the communication connection between the components. The memory 72 may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory. Various programs may be stored in the memory 72 to complete various processing functions and implement the method steps of this embodiment. In this embodiment, the transmitter 75 may be a radio frequency processing module or a baseband processing module in the network element device, and the receiver 71 may also be a radio frequency processing module or a baseband processing module in the network element device. The transmitter 75 and the receiver 71 may be integrated together to realize a transceiver. The transmitter 75 and the receiver 71 may be coupled to the processor 73, and they may realize the receiving or transmitting action under the instruction or control of the processor 73.

[0319] In this embodiment, the receiver is used to receive the missing part of the perception information sent by the perception device in response to the acquisition request; the transmitter is used to send the missing part of the perception information to the SF.

[0320] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0321] Receive a subscription request sent by an application function AF network element; the subscription request is used to indicate the perception information of the subscription perception device;

[0322] Based on the subscription request, the perception information of the perception device is fed back to the AF.

[0323] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0324] According to the subscription request, the perception information of the perception device is obtained from the information stored in SF itself.

[0325] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0326] If there are missing parts in the perception information obtained from the information stored in the SF itself, a request for obtaining is sent to the perception device;

[0327] The missing portion of the sensing information sent by the sensing device based on the acquisition request is received.

[0328] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0329] Receive the missing part of the perception information sent by the perception device through the user plane function UPF network element.

[0330] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0331] According to the subscription demand information, determine whether there is any missing part in the information stored in SF itself.

[0332] Optionally, the subscription request includes a subscription configuration file and identification information of the sensing device.

[0333] Optionally, the subscription profile includes subscription requirement information, and the subscription requirement information includes the type, amount, timeliness and perception range of the perceived information.

[0334] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0335] Determine the priority of obtaining each perception information according to the timeliness of each perception information;

[0336] Determine the order of sending acquisition requests to multiple sensing devices according to the priority of each sensing information;

[0337] Send acquisition requests to multiple sensing devices in the order in which they are sent.

[0338] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0339] Receive the address information of the perception device sent by the perception device through the access and mobility management function AMF network element.

[0340] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0341] Encapsulate address information and awareness information into subscription notifications;

[0342] Send subscription notification to AF.

[0343] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0344] Receive the subscription request sent by AF through the network open function NEF network element and the policy control function PCF network element.

[0345] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0346] Send a subscription request to SF; the subscription request is used to indicate the perception information of the subscription perception device;

[0347] Receive the perception information of the perception device fed back by the SF based on the subscription request.

[0348] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0349] Receive a subscription request sent by the AF; the subscription request is used to indicate the perception information of the subscription perception device;

[0350] Send the subscription request to PCF so that PCF sends the subscription request to SF.

[0351] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0352] Receive the subscription notification sent by SF, which includes the sensing information and address information of the sensing device;

[0353] Receive the AF configuration file sent by the PCF, and send the subscription notification to the AF based on the configuration file.

[0354] Optionally, the configuration file includes identification information of the AF.

[0355] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0356] Receive a subscription request sent by NEF; the subscription request is used to indicate the perception information of the subscription perception device;

[0357] Send subscription request to SF.

[0358] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0359] Determine the identification information of the SF according to the identification information and a preset registration table;

[0360] Based on the identification information of the SF, a subscription request is sent to the SF.

[0361] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0362] Receive the push request and push scope sent by SF; the push request is used to indicate the perception information of the push perception device;

[0363] In response to the push request, a configuration file of the AF is generated according to the push scope, and the configuration file is sent to the NEF.

[0364] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0365] receiving a missing portion of the sensing information sent by the sensing device in response to the acquisition request;

[0366] Send the missing parts of the perception information to the SF.

[0367] The present application also provides a computer program product including instructions, which, when executed on a computer, causes the computer to perform the following steps:

[0368] Receive a subscription request sent by an application function AF network element; the subscription request is used to indicate the perception information of the subscription perception device;

[0369] Based on the subscription request, the perception information of the perception device is fed back to the AF.

[0370] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0371] According to the subscription request, the perception information of the perception device is obtained from the information stored in SF itself.

[0372] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0373] If there are missing parts in the perception information obtained from the information stored in the SF itself, a request for obtaining is sent to the perception device;

[0374] The missing portion of the sensing information sent by the sensing device based on the acquisition request is received.

[0375] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0376] Receive the missing part of the perception information sent by the perception device through the user plane function UPF network element.

[0377] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0378] According to the subscription demand information, determine whether there is any missing part in the information stored in SF itself.

[0379] Optionally, the subscription request includes a subscription configuration file and identification information of the sensing device.

[0380] Optionally, the subscription profile includes subscription requirement information, and the subscription requirement information includes the type, amount, timeliness and perception range of the perceived information.

[0381] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0382] Determine the priority of obtaining each perception information according to the timeliness of each perception information;

[0383] Determine the order of sending acquisition requests to multiple sensing devices according to the priority of each sensing information;

[0384] Send acquisition requests to multiple sensing devices in the order in which they are sent.

[0385] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0386] Receive the address information of the perception device sent by the perception device through the access and mobility management function AMF network element.

[0387] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0388] Encapsulate address information and awareness information into subscription notifications;

[0389] Send subscription notification to AF.

[0390] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0391] Receive the subscription request sent by AF through the network open function NEF network element and the policy control function PCF network element.

[0392] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0393] Send a subscription request to SF; the subscription request is used to indicate the perception information of the subscription perception device;

[0394] Receive the perception information of the perception device fed back by the SF based on the subscription request.

[0395] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0396] Receive a subscription request sent by the AF; the subscription request is used to indicate the perception information of the subscription perception device;

[0397] Send the subscription request to PCF so that PCF sends the subscription request to SF.

[0398] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0399] Receive the subscription notification sent by SF, which includes the sensing information and address information of the sensing device;

[0400] Receive the AF configuration file sent by the PCF, and send the subscription notification to the AF based on the configuration file.

[0401] Optionally, the configuration file includes identification information of the AF.

[0402] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0403] Receive a subscription request sent by NEF; the subscription request is used to indicate the perception information of the subscription perception device;

[0404] Send subscription request to SF.

[0405] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0406] Determine the identification information of the SF according to the identification information and a preset registration table;

[0407] Based on the identification information of the SF, a subscription request is sent to the SF.

[0408] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0409] Receive the push request and push scope sent by SF; the push request is used to indicate the perception information of the push perception device;

[0410] In response to the push request, a configuration file of the AF is generated according to the push scope, and the configuration file is sent to the NEF.

[0411] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0412] receiving a missing portion of the sensing information sent by the sensing device in response to the acquisition request;

[0413] Send the missing parts of the perception information to the SF.

[0414] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0415] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0416] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for acquiring perception information, characterized in that: The method is applied to a sensing function SF network element, and the method comprises: Receiving a subscription request sent by an application function AF network element; the subscription request is used to indicate the perception information of the subscription perception device; Based on the subscription request, the perception information of the perception device is fed back to the AF.

2. The method according to claim 1, characterized in that The method further comprises: According to the subscription request, the perception information of the perception device is obtained from the information stored in the SF itself.

3. The method according to claim 2, characterized in that The method further comprises: If there is a missing part in the perception information obtained from the information stored in the SF itself, sending an acquisition request to the perception device; The missing part of the sensing information sent by the sensing device based on the acquisition request is received.

4. The method according to claim 3, characterized in that: The receiving the missing part of the perception information sent by the perception device based on the acquisition request includes: Receive the missing part of the perception information sent by the perception device through the user plane function UPF network element.

5. The method according to claim 3, characterized in that: The subscription request includes subscription requirement information, and the method further includes: According to the subscription requirement information, it is determined whether the missing part exists in the information stored in the SF itself.

6. The method according to claim 3, characterized in that: The subscription request includes a subscription configuration file and identification information of the sensing device.

7. The method according to claim 6, characterized in that The subscription configuration file includes subscription requirement information, and the subscription requirement information includes the type, information volume, timeliness and perception range of the perception information.

8. The method according to claim 7, characterized in that The subscription request is used to indicate subscription to the perception information of multiple perception devices, and the method further includes: Determining the priority of acquiring each of the perception information according to the timeliness of each of the perception information; Determining, according to the priority of each of the perception information, a sending order of sending the acquisition requests to the multiple perception devices; The acquisition request is sent to the multiple sensing devices according to the sending order.

9. The method according to claim 4, characterized in that The method further comprises: Receive the address information of the perception device sent by the perception device through the access and mobility management function AMF network element.

10. The method according to claim 9, characterized in that The feeding back the perception information of the perception device to the AF includes: Encapsulating the address information and the perception information into a subscription notification; The subscription notification is sent to the AF.

11. The method according to any one of claims 1 to 10, characterized in that: The receiving a subscription request sent by an application function AF network element includes: The subscription request is received, which is sent by the AF through a network open function NEF network element and a policy control function PCF network element.

12. A method for acquiring perception information, characterized in that: The method is applied to AF, and the method comprises: Send a subscription request to SF; the subscription request is used to indicate the perception information of the subscription perception device; Receive the perception information of the perception device fed back by the SF based on the subscription request.

13. A method for acquiring perception information, characterized in that: The method is applied to NEF, and the method comprises: Receive a subscription request sent by the AF; the subscription request is used to indicate the perception information of the subscription perception device; The subscription request is sent to the PCF, so that the PCF sends the subscription request to the SF.

14. The method according to claim 13, characterized in that The method further comprises: receiving a subscription notification sent by the SF, where the subscription notification includes the perception information of the perception device and the address information of the perception device; Receive the configuration file of the AF sent by the PCF, and send the subscription notification to the AF based on the configuration file.

15. The method according to claim 14, characterized in that The configuration file includes identification information of the AF.

16. A method for acquiring perception information, characterized in that: The method is applied to PCF, and the method comprises: Receive a subscription request sent by the NEF; the subscription request is used to indicate the perception information of the subscription perception device; The subscription request is sent to SF.

17. The method according to claim 16, characterized in that The subscription request includes the identification information of the sensing device; and sending the subscription request to the SF includes: Determine the identification information of the SF according to the identification information and a preset registration table; The subscription request is sent to the SF based on the identification information of the SF.

18. The method according to claim 16 or 17, characterized in that The method further comprises: receiving a push request and a push range sent by the SF; the push request is used to instruct to push the perception information of the perception device; In response to the push request, a configuration file of the AF is generated according to the push scope, and the configuration file is sent to the NEF.

19. A method for acquiring perception information, characterized in that: The method is applied to UPF, and the method comprises: receiving a missing portion of the sensing information sent by the sensing device in response to the acquisition request; The missing part of the sensing information is sent to the SF.

20. A device for acquiring perception information, characterized in that: The device is applied to SF, and the device comprises: A first receiving module is used to receive a subscription request sent by an application function AF network element; the subscription request is used to indicate the perception information of the subscription perception device; The first sending module is used to feed back the perception information of the perception device to the AF based on the subscription request.

21. A device for acquiring perception information, characterized in that: The device is applied to AF, and the device comprises: A fourth sending module is used to send a subscription request to the SF; the subscription request is used to indicate the perception information of the subscription perception device; The fourth receiving module is used to receive the perception information of the perception device fed back by the SF based on the subscription request.

22. A device for acquiring perception information, characterized in that: The device is applied to NEF, and the device comprises: A fifth receiving module is used to receive a subscription request sent by the AF; the subscription request is used to indicate the perception information of the subscription perception device; The fifth sending module is used to send the subscription request to the PCF, so that the PCF sends the subscription request to the SF.

23. A device for acquiring perception information, characterized in that: The device is applied to PCF, and the device comprises: An eighth receiving module, configured to receive a subscription request sent by the NEF; the subscription request is used to indicate the perception information of the subscription perception device; The seventh sending module is used to send the subscription request to SF.

24. A device for acquiring perception information, characterized in that: The device is applied to UPF, and the device comprises: a ninth receiving module, configured to receive a missing portion of the sensing information sent by the sensing device in response to the acquisition request; An eighth sending module is used to send the missing part of the perception information to the SF.

25. A network element device, characterized in that: include: Receivers and transmitters; The receiver is used to receive a subscription request sent by an application function AF network element; The subscription request is used to indicate the subscription of the perception information of the perception device; The transmitter is used to feed back the perception information of the perception device to the AF based on the subscription request.

26. A network element device, characterized in that: include: Transmitters and receivers; The transmitter is used to send a subscription request to SF; The subscription request is used to indicate the subscription of the perception information of the perception device; The receiver is configured to receive the perception information of the perception device fed back by the SF based on the subscription request.

27. A network element device, characterized in that: include: Receivers and transmitters; The receiver is used to receive a subscription request sent by the AF; The subscription request is used to indicate the subscription of the perception information of the perception device; The transmitter is configured to send the subscription request to the PCF, so that the PCF sends the subscription request to the SF.

28. A network element device, characterized in that: include: Receivers and transmitters; The receiver is used to receive a subscription request sent by the NEF; The subscription request is used to indicate the subscription of the perception information of the perception device; The sender is used to send the subscription request to the SF.

29. A network element device, characterized in that: include: Receivers and transmitters; The receiver is configured to receive the missing portion of the sensing information sent by the sensing device in response to the acquisition request; The transmitter is used to send the missing part of the perception information to the SF.

30. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 19 are implemented.

31. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 19 are implemented.

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