Charging method, system and gateway device based on signaling interworking gateway

Abstract

The application relates to a charging method based on a signaling interworking gateway, a public-private network fusion system, a charging method and a gateway device. The method comprises the following steps: in the process that a target UE accesses a private network service, a private network UPF reports service usage information of the target UE to a private network SMF; the private network SMF generates charging information of the target UE based on the service usage information, and sends the charging information to a signaling interworking gateway; the signaling interworking gateway hides key information of the private network SMF in the charging information, obtains target charging information, and sends the target charging information to a public network CHF; and the public network CHF completes a charging process for the target UE based on the target charging information. The method can realize flexible charging of the public network CHF on a single UE; the signaling interworking gateway hides the key information of the private network SMF, can meet the requirement that a sinking network element and a public network element need to be safely isolated, and improves the safety of the charging process; and the signaling interworking gateway completes the adaptation work, and other core network elements do not need to be customized, developed and upgraded.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, in particular to a charging method based on a signaling interworking gateway, a public-private network system, a charging method and a gateway device. BACKGROUND

[0002] With the rapid development of 5G (5th Generation Mobile Communication Technology) private network services, the demand for interworking between private networks and operator public networks is increasingly urgent, but this also brings a series of network security and operator control problems.

[0003] For the scenario of deploying 5GC (5G core network) in an enterprise park, since the SMF (Session Management Function) and UPF (User plane Function) are both private network-specific, i.e., deployed in the enterprise park, the user's traffic statistics and other charging information are all local to the enterprise. This makes the operator only able to charge the entire enterprise, and the charging method is too single to flexibly charge private network users. SUMMARY

[0004] Therefore, it is necessary to provide a charging method based on a signaling interworking gateway, a public-private network system, a charging method and a gateway device to solve the above technical problems, which can realize flexible charging of a large network CHF for a single UE and improve the security of the charging process.

[0005] In a first aspect, the present application provides a charging method based on a signaling interworking gateway, which is applied to a public-private network system, the public-private network system comprising a private network UPF, a private network SMF, a signaling interworking gateway and a large network CHF; the method comprising:

[0006] In the process of the target UE accessing the private network service, the private network UPF reports the service usage information of the target UE to the private network SMF;

[0007] The private network SMF generates charging information of the target UE based on the service usage information, and sends the charging information to the signaling interworking gateway;

[0008] The signaling interworking gateway hides the key information of the private network SMF in the charging information to obtain target charging information, and sends the target charging information to the large network CHF;

[0009] The large network CHF completes the charging process for the target UE based on the target charging information.

[0010] In one of the embodiments, after the large network CHF completes the charging process for the target UE based on the target charging information, the method further comprises:

[0011] The large network CHF feeds back response information to the signaling interworking gateway.

[0012] The signaling interworking gateway hides the key information of the large network CHF in the response information to obtain target response information, and sends the target response information to the private network SMF.

[0013] In one of the embodiments, the signaling interworking gateway hides the key information of the private network SMF in the charging information to obtain target charging information, comprising:

[0014] The signaling interworking gateway identifies and deletes the key information of the private network SMF in the charging information to obtain the target charging information.

[0015] In one of the embodiments, the signaling interworking gateway hides the key information of the large network CHF in the response information to obtain target response information, comprising:

[0016] The signaling interworking gateway identifies and deletes the key information of the large network CHF in the response information to obtain the target response information.

[0017] In one of the embodiments, the private network UPF reports the service usage information of the target UE to the private network SMF, comprising:

[0018] The private network UPF receives the policy information issued by the private network SMF, and reports the service usage information of the target UE to the private network SMF based on the policy information.

[0019] In one of the embodiments, the private network SMF is configured to send the charging information to the target CHF, wherein the target CHF is configured based on the address of the signaling interworking gateway.

[0020] In a second aspect, the present application further provides a public-private integration network system, comprising a private network UPF, a private network SMF, a signaling interworking gateway and a large network CHF; wherein:

[0021] The private network UPF is configured to report the service usage information of the target UE to the private network SMF in the process of the target UE accessing the private network service.

[0022] The private network SMF is configured to generate charging information of the target UE based on the service usage information, and send the charging information to the signaling interworking gateway.

[0023] The signaling interworking gateway is configured to hide the key information of the private network SMF in the charging information to obtain target charging information, and send the target charging information to the large network CHF.

[0024] The public network CHF is configured to complete a charging process for the target UE based on the target charging information.

[0025] In a third aspect, the application further provides a charging method, which is applied to a signaling interworking gateway, and the signaling interworking gateway is arranged in the public-private integrated network system as described in the first aspect. The method comprises the following steps:

[0026] In the case that the charging information sent by the private network SMF is received, the key information of the private network SMF in the charging information is hidden to obtain target charging information, and the target charging information is sent to the public network CHF.

[0027] In the case that the response information sent by the public network CHF is received, the key information of the public network CHF in the response information is hidden to obtain target response information, and the target response information is sent to the private network SMF.

[0028] In one of the embodiments, the key information of the private network SMF in the charging information is hidden to obtain the target charging information, which comprises the following steps:

[0029] The key information of the private network SMF in the charging information is identified and deleted to obtain the target charging information.

[0030] The key information of the public network CHF in the response information is hidden to obtain the target response information, which comprises the following steps:

[0031] The key information of the public network CHF in the response information is identified and deleted to obtain the target response information.

[0032] In a fourth aspect, the application further provides a gateway device, which comprises a memory and a processor. The memory stores a computer program, and the processor executes the computer program to realize the steps of the method as described in the second aspect.

[0033] The aforementioned billing method based on a signaling interconnection gateway, the public-private network converged network system, the billing method, and the gateway equipment, during the process of a target UE accessing private network services, involves the private network UPF reporting the target UE's service usage information to the private network SMF. Based on the service usage information, the private network SMF generates billing information for the target UE and sends it to the signaling interconnection gateway. The signaling interconnection gateway hides key information from the private network SMF within the billing information, obtains the target billing information, and sends it to the main network CHF. The main network CHF completes the billing process for the target UE based on the target billing information. Through this method, the signaling interconnection gateway forwards billing messages, enabling flexible billing for individual UEs by the main network CHF, enriching the operator's billing methods. The signaling interconnection gateway's hiding of key information from the private network SMF meets the requirement of secure isolation between the sinking network elements and the public network elements, improving the security of the billing process. The adaptation work is completed by the signaling interconnection gateway, without the need for customized development and upgrades of other core network elements. It has high compatibility with the existing network and can ensure the stability of the network system. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the configuration of a public-private converged network system in one embodiment;

[0036] Figure 2 This is a flowchart illustrating a billing method based on a signaling interconnection gateway in one embodiment;

[0037] Figure 3 This is a flowchart illustrating a billing method based on a signaling interconnection gateway in another embodiment;

[0038] Figure 4 This is a schematic diagram of signaling interaction in a public-private converged network system in one embodiment.

[0039] Figure 5 This is a flowchart illustrating a billing method in one embodiment;

[0040] Figure 6 This is an internal structure diagram of a gateway device in one embodiment. Detailed Implementation

[0041] In order to make the purposes, technical solutions and advantages of the present application clearer, further detailed description will be given to the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0042] Before introducing the specific embodiments of the present application, the professional terms involved in the present application are explained:

[0043] SMF (Session Management Function, session management function): responsible for interacting with the separated user plane, establishing, modifying and releasing sessions, IP address allocation and management, etc.

[0044] UPF (User plane Function, user plane function): including the routing and forwarding of user data packets, data interaction with external data networks (Data Network, DN), QoS (Quality of Service, service quality) processing of user plane, flow control rule implementation (such as gating, redirection, traffic steering) and the like.

[0045] CHF (Charging Function, charging function): is a key component in 5G network, mainly responsible for charging related functions, including online charging, offline charging and integrated charging, etc.

[0046] UE (User Equipment): refers to user equipment, i.e. terminal equipment in mobile communication system, including mobile phones, notebook computers, tablet computers and the like. These devices can be connected to the network through wireless network and mobile network to realize data transmission and voice communication functions and the like.

[0047] The charging method based on signaling interworking gateway provided by the embodiments of the present application can be applied in the application environment as shown in Figure 1 The public and private network system includes a public network and at least one private network, and the private network elements interact with the public network through the signaling interworking gateway 105. The network elements or devices involved in the embodiments include private network UPF 102, private network SMF 104, signaling interworking gateway 106 and large network CHF 108. The signaling interworking gateway 105 forwards the charging message of the private network to the public network, and realizes flexible charging of a single UE by the large network CHF. By deploying the signaling interworking gateway 106 between the signaling plane of the private network and the operator public network, the signaling messages between the two networks need to pass through the signaling interworking gateway 106 for forwarding, so as to realize network isolation, topology hiding, network security and the like, which not only guarantees the security of the operator public network and the private network, but also simplifies the complexity of network connection.

[0048] In an exemplary embodiment, in combination withFigure 1 With reference to Figure 2 A charging method based on a signaling interworking gateway is provided, which is applied to Figure 1 A public-private integration network system is taken as an example for illustration, which comprises:

[0049] In step 202, the private network UPF reports the service usage information of the target UE to the private network SMF in the process of the target UE accessing the private network service.

[0050] The target UE refers to a user equipment using the private network, i.e., a private network user. The target UE establishes a session with the private network element (including the private network UPF and the private network SMF), and normally accesses the private network service based on the session. The private network service refers to a network service established for enterprises or specific purposes. These services are isolated from the public network to ensure the security and privacy of data. The private network service can include internal communication of enterprises, data storage, application services, Internet of Things management, etc., which are not limited in the embodiment.

[0051] The private network UPF obtains the service usage information of the target UE by recording the establishment, modification and release process of the session, as well as the QoS flow information, the number of data packets, the number of bytes, etc. in the session. The obtained service usage information of the target UE is reported to the private network SMF.

[0052] In an optional implementation, the private network UPF reports the service usage information of the UE to the private network SMF according to the received policy information. The policy information is issued by the private network SMF, and is used to inform the UPF how to report the usage statistics information of the private network service.

[0053] In step 204, the private network SMF generates the charging information of the target UE based on the service usage information, and sends the charging information to the signaling interworking gateway.

[0054] The private network SMF calculates the charging information according to the charging policy after receiving the service usage information, and sends the charging information to the signaling interworking gateway.

[0055] In step 206, the signaling interworking gateway hides the key information of the private network SMF in the charging information, obtains the target charging information, and sends the target charging information to the public network CHF.

[0056] The signaling interworking gateway hides the key information of the private network SMF after receiving the charging information. Optionally, the signaling interworking gateway identifies and encrypts the key information of the private network SMF in the charging information to obtain target charging information including encrypted content and non-encrypted content, thereby hiding the key information of the private network SMF. Optionally, the signaling interworking gateway identifies and deletes the key information of the private network SMF in the charging information to obtain processed target charging information, thereby hiding the key information of the private network SMF. By hiding the key information of the private network SMF, only the part related to the charging of the target UE is retained in the target charging information, and the public and private network isolation is ensured.

[0057] The key information of the private network SMF refers to sensitive information related to the SMF network element itself or the private network structure, including network topology, the name (ID) of the private network SMF, the address (IP) of the private network SMF, session records, and the like.

[0058] In step 208, the public network CHF completes the charging process for the target UE based on the target charging information.

[0059] The public network CHF supports processing the charging process of multiple UEs at the same time, thereby realizing flexible charging of a single UE in the same private network or different private networks.

[0060] It can be understood that, as 5G empowers the vertical industry, more and more enterprise customers choose 5G technology to build internal networks, and some large enterprises often choose to deploy a complete set of 5G core networks. Currently, operators can only charge the entire enterprise, and the charging method is too single. By setting the signaling interworking gateway, the embodiment can collect the charging information of a single UE while meeting the public and private network isolation, thereby providing a solution for flexible charging of operators.

[0061] In the above charging method based on the signaling interworking gateway, in the process in which the target UE accesses the private network service, the private network UPF reports the service usage information of the target UE to the private network SMF; the private network SMF generates charging information of the target UE based on the service usage information, and sends the charging information to the signaling interworking gateway; the signaling interworking gateway hides the key information of the private network SMF in the charging information to obtain target charging information, and sends the target charging information to the public network CHF; and the public network CHF completes the charging process for the target UE based on the target charging information. By the above manner, the signaling interworking gateway forwards the charging message, thereby realizing flexible charging of a single UE by the public network CHF, and enriching the charging means of operators. The signaling interworking gateway hides the key information of the private network SMF, thereby meeting the requirement that the sinking network element and the public network element need to be securely isolated, and improving the security of the charging process. The signaling interworking gateway completes the adaptation work, without the need for custom development and upgrading of other core network elements, thereby having high compatibility with the existing network, and being capable of ensuring the stability of the network system.

[0062] In an exemplary embodiment, as shown in Figure 3 a charging method based on a signaling interworking gateway is provided, which is applied to Figure 1 a public-private network system as shown in the description, which comprises:

[0063] Step 302, in the process of accessing private network services by the target UE, the private network UPF reports the service usage information of the target UE to the private network SMF.

[0064] Step 304, the private network SMF generates charging information of the target UE based on the service usage information, and sends the charging information to the signaling interworking gateway.

[0065] Step 306, the signaling interworking gateway hides the key information of the private network SMF in the charging information, obtains target charging information, and sends the target charging information to the public network CHF.

[0066] Step 308, the public network CHF completes the charging process for the target UE based on the target charging information.

[0067] Among them, the description of steps 302 to 308 can refer to the explanation of steps 202 to 208, which will not be repeated here.

[0068] Step 310, the public network CHF feeds back response information to the signaling interworking gateway.

[0069] Step 312, the signaling interworking gateway hides the key information of the public network CHF in the response information, obtains target response information, and sends the target response information to the private network SMF.

[0070] Among them, after the public network CHF completes the user charging process, it needs to reply to the private network SMF through the signaling interworking gateway. Specifically, the public network CHF replies to the signaling interworking gateway with response information, and the signaling interworking gateway hides the key information of the public network CHF after receiving the response information. Optionally, the signaling interworking gateway identifies and encrypts the key information of the public network CHF in the response information to obtain target response information including encrypted content and non-encrypted content, thereby hiding the key information of the public network CHF. Optionally, the signaling interworking gateway identifies and deletes the key information of the public network CHF in the response information to obtain processed target response information, thereby hiding the key information of the public network CHF. By hiding the key information of the public network CHF, only the part related to the response is retained in the target response information, ensuring the isolation of public and private networks.

[0071] The key information of the public network CHF refers to sensitive information related to the CHF network element itself or the public network structure, including network topology, the name (ID) of the public network CHF, the address (IP) of the public network CHF, etc.

[0072] In the embodiment, the signaling interworking gateway forwards the response information, realizes the charging response feedback between the public network and the private network under the premise of meeting the public-private network isolation, improves the network security, and ensures the integrity and traceability of the charging process.

[0073] In an exemplary embodiment, the signaling interworking gateway hides the key information of the private network SMF in the charging information to obtain target charging information, including: the signaling interworking gateway identifies and deletes the key information of the private network SMF in the charging information to obtain the target charging information.

[0074] The signaling interworking gateway deletes the key information of the private network SMF in the charging information to ensure that only the part related to the charging of the target UE is retained in the target charging information, reduce the data transmission amount between the signaling interworking gateway and the big network CHF, and improve the charging efficiency.

[0075] In an exemplary embodiment, the signaling interworking gateway hides the key information of the big network CHF in the response information to obtain target response information, including: the signaling interworking gateway identifies and deletes the key information of the big network CHF in the response information to obtain the target response information.

[0076] The signaling interworking gateway deletes the key information of the big network CHF in the response information to ensure that only the part related to the response is retained in the target response information, reduce the data transmission amount between the signaling interworking gateway and the private network SMF, and improve the charging efficiency.

[0077] In an exemplary embodiment, the private network UPF reports the service usage information of the target UE to the private network SMF, including: the private network UPF receives the policy information issued by the private network SMF, and reports the service usage information of the target UE to the private network SMF based on the policy information.

[0078] The private network SMF issues the policy information to the private network UPF, that is, the usage reporting rule (URR, usage reporting rule), which is used to inform the UPF how to report the usage statistics information of the private network service. The private network UPF can report the service usage information of the target UE based on the policy information.

[0079] In an alternative implementation, refer to Figure 4The interaction process between the network element and the device includes: 1. A private network user UE establishes a session and normally accesses private network services; 2. The private network UPF reports the service usage information of the UE to the private network SMF according to the URR policy information issued by the SMF; 3. The private network SMF generates charging information of the UE; 4. The private network SMF sends the charging information of the UE to the signaling interworking gateway; 5. The signaling interworking gateway hides the key information of the private network SMF in the charging information, such as network topology; 6. The signaling interworking gateway sends the processed charging information to the large network CHF; 7. The large network CHF completes the user charging process; 8. The large network CHF returns response information to the signaling interworking gateway; 9. The signaling interworking gateway hides the key information of the large network CHF in the response message, such as network topology; and 10. The signaling interworking gateway sends the processed response message to the private network SMF.

[0080] In an exemplary embodiment, the private network SMF is configured to send charging information to the target CHF, wherein the target CHF is configured based on the address of the signaling interworking gateway.

[0081] In the embodiment, the IP address of the signaling interworking gateway is configured as the target CHF of the private network SMF, which can be compatible with the existing network architecture without the need for custom development and upgrading of other core network elements, thereby ensuring the stability of the network system.

[0082] It should be understood that, although each step in the flowchart involved in each of the above-described embodiments is shown in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, at least part of the steps in the flowchart involved in each of the above-described embodiments can include multiple steps or stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed in rotation or alternation with at least part of other steps or steps or stages in other steps.

[0083] Based on the same inventive concept, the embodiments of the present application also provide a public-private fusion network system for implementing the above-mentioned charging method based on a signaling interworking gateway. The implementation scheme for solving the problem provided by the system is similar to the implementation scheme described in the above method, and therefore the specific limitations in one or more public-private fusion network system embodiments provided below can refer to the limitations of the charging method based on the signaling interworking gateway described above, which will not be described here again.

[0084] In one example embodiment, as shown in Figure 1 A public-private fusion network system is provided, which includes a private network UPF 102, a private network SMF 104, a signaling interworking gateway 106, and a public network CHF 108; wherein:

[0085] The private network UPF 102 is configured to report service usage information of a target UE to the private network SMF 104 in a process of accessing private network service by the target UE;

[0086] The private network SMF 104 is configured to generate charging information of the target UE based on the service usage information, and send the charging information to the signaling interworking gateway 106;

[0087] The signaling interworking gateway 106 is configured to hide key information of the private network SMF 104 in the charging information, obtain target charging information, and send the target charging information to the public network CHF 108;

[0088] The public network CHF 108 is configured to complete a charging process for the target UE based on the target charging information.

[0089] In one example embodiment, the public network CHF 108 is further configured to feed back response information to the signaling interworking gateway 106;

[0090] The signaling interworking gateway 106 is further configured to hide key information of the public network CHF 108 in the response information, obtain target response information, and send the target response information to the private network SMF 104.

[0091] In one example embodiment, the signaling interworking gateway 106 is further configured to identify and delete the key information of the private network SMF 104 in the charging information, and obtain the target charging information.

[0092] In one example embodiment, the signaling interworking gateway 106 is further configured to identify and delete the key information of the public network CHF 108 in the response information, and obtain the target response information.

[0093] In one example embodiment, the private network UPF 102 is further configured to receive policy information issued by the private network SMF 104, and report the service usage information of the target UE to the private network SMF 104 based on the policy information.

[0094] In one example embodiment, the private network SMF 104 is configured to send the charging information to a target CHF, wherein the target CHF is configured based on an address of the signaling interworking gateway 106.

[0095] In the public-private hybrid network system, in a process in which the target UE accesses a private network service, the private network UPF reports service usage information of the target UE to the private network SMF; the private network SMF generates charging information of the target UE based on the service usage information, and sends the charging information to the signaling interworking gateway; the signaling interworking gateway hides key information of the private network SMF in the charging information, obtains target charging information, and sends the target charging information to the public network CHF; and the public network CHF completes a charging process for the target UE based on the target charging information. In this way, the signaling interworking gateway forwards the charging message, the public network CHF realizes flexible charging for a single UE, and the charging means of an operator is enriched. The signaling interworking gateway hides the key information of the private network SMF, which meets the requirement of security isolation between the sunken network element and the public network element, and improves the security of the charging process. The signaling interworking gateway completes the adaptation work, without the need of custom development and upgrading of other core network elements, and has high compatibility with the existing network, which guarantees the stability of the network system.

[0096] In one exemplary embodiment, in combination with Figure 1 , with reference to Figure 5 , a charging method is provided, which is applied to the signaling interworking gateway shown in Figure 1 . The method comprises the following steps.

[0097] Step 502, in the case where the charging information sent by the private network SMF is received, the key information of the private network SMF in the charging information is hidden, target charging information is obtained, and the target charging information is sent to the public network CHF.

[0098] Step 504, in the case where the response information sent by the public network CHF is received, the key information of the public network CHF in the response information is hidden, target response information is obtained, and the target response information is sent to the private network SMF.

[0099] The specific limitations in the charging method embodiments provided in the present application can be referred to the limitations of the charging method based on the signaling interworking gateway in the foregoing, which will not be described herein.

[0100] In the charging method, the signaling interworking gateway forwards the charging message, the public network CHF realizes flexible charging for a single UE, and the charging means of an operator is enriched. The signaling interworking gateway hides the key information of the private network SMF, which meets the requirement of security isolation between the sunken network element and the public network element, and improves the security of the charging process. The signaling interworking gateway forwards the response information, realizes the charging response feedback between the public network and the private network under the premise of meeting the public-private network isolation, improves the network security, and ensures the integrity and traceability of the charging process. The signaling interworking gateway completes the adaptation work, without the need of custom development and upgrading of other core network elements, and has high compatibility with the existing network, which guarantees the stability of the network system.

[0101] In one exemplary embodiment, hiding key information of the private network SMF in the billing information to obtain target billing information includes: identifying and deleting key information of the private network SMF in the billing information to obtain target billing information; hiding key information of the large network CHF in the response information to obtain target response information includes: identifying and deleting key information of the large network CHF in the response information to obtain target response information.

[0102] Among them, the signaling interconnection gateway removes key information of the private network SMF from the billing information to ensure that only the part related to the billing of the target UE is retained in the target billing information, thereby reducing the amount of data transmission between the signaling interconnection gateway and the main network CHF and improving billing efficiency.

[0103] By removing key information from the main network CHF in the response information, the signaling interconnection gateway ensures that only the response-related parts are retained in the target response information, thereby reducing the amount of data transmission between the signaling interconnection gateway and the private network SMF and improving billing efficiency.

[0104] In one exemplary embodiment, a gateway device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 6 As shown, the gateway device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides the environment for the operating system and computer programs stored in the non-volatile storage media to run. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communicating with external terminals via a network connection. When the computer program is executed by the processor, it implements a billing method based on a signaling interoperability gateway.

[0105] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the solution of this application and does not constitute a limitation on the gateway device to which the solution of this application is applied. A specific gateway device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0106] In an example embodiment, a gateway device is provided, comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program: in a case where charging information sent by a private network SMF is received, hiding key information of the private network SMF in the charging information to obtain target charging information, and sending the target charging information to a public network CHF; in a case where response information sent by the public network CHF is received, hiding key information of the public network CHF in the response information to obtain target response information, and sending the target response information to the private network SMF.

[0107] In an example embodiment, the processor further implements the following steps when executing the computer program: identifying and deleting the key information of the private network SMF in the charging information to obtain the target charging information; identifying and deleting the key information of the public network CHF in the response information to obtain the target response information.

[0108] It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of related data need to comply with relevant regulations.

[0109] Those skilled 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. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiment methods. In the embodiments provided in the present application, the memory, database or other medium mentioned can include at least one of a non-volatile memory and a volatile memory. The non-volatile memory can include a read-only memory (ROM), a magnetic tape, a floppy disk, a flash memory, an optical storage, a high-density embedded non-volatile memory, a resistive random access memory (ReRAM), a magnetoresistive random access memory (MRAM), a ferroelectric random access memory (FRAM), a phase change memory (PCM), a graphene memory, etc. The volatile memory can include a random access memory (RAM) or an external cache memory, etc. As an illustration but not limitation, the RAM can be in various forms, such as a static random access memory (SRAM) or a dynamic random access memory (DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., without being limited thereto.

[0110] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0111] The above-described embodiments are merely illustrative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A charging method based on a signaling interworking gateway, characterized in that, The method is applied to a public-private fusion network system, the public-private fusion network system comprising a private network UPF, a private network SMF, a signaling interworking gateway and a large network CHF; the method comprising: In a process in which a target UE accesses a private network service, the private network UPF reports service usage information of the target UE to the private network SMF; The private network SMF generates charging information of the target UE based on the service usage information, and sends the charging information to the signaling interworking gateway; The signaling interworking gateway hides key information of the private network SMF in the charging information to obtain target charging information, and sends the target charging information to the large network CHF; The large network CHF completes a charging process for the target UE based on the target charging information.

2. The method of claim 1, wherein, After the large network CHF completes the charging process for the target UE based on the target charging information, the method further comprises: The large network CHF feeds back response information to the signaling interworking gateway; The signaling interworking gateway hides key information of the large network CHF in the response information to obtain target response information, and sends the target response information to the private network SMF.

3. The method of claim 1, wherein, The signaling interworking gateway hides key information of the private network SMF in the charging information to obtain target charging information, comprising: The signaling interworking gateway identifies and deletes the key information of the private network SMF in the charging information to obtain the target charging information.

4. The method of claim 2, wherein, The signaling interworking gateway hides key information of the large network CHF in the response information to obtain target response information, comprising: The signaling interworking gateway identifies and deletes the key information of the large network CHF in the response information to obtain the target response information.

5. The method according to any one of claims 1 to 4, characterized in that, The private network UPF reports service usage information of the target UE to the private network SMF, comprising: The private network UPF receives policy information issued by the private network SMF, and reports service usage information of the target UE to the private network SMF based on the policy information.

6. The method according to any one of claims 1 to 4, characterized in that, The private network SMF is configured to send the charging information to a target CHF, wherein the target CHF is configured based on an address of the signaling interworking gateway.

7. A public-private hybrid network system, characterized by The public-private fusion network system comprises a private network UPF, a private network SMF, a signaling interworking gateway and a large network CHF; wherein: The private network UPF is configured to report service usage information of a target UE to the private network SMF in a process in which the target UE accesses a private network service; The private network SMF is configured to generate charging information of the target UE based on the service usage information, and send the charging information to the signaling interworking gateway; The signaling interworking gateway is configured to hide key information of the private network SMF in the charging information to obtain target charging information, and send the target charging information to the large network CHF; The large network CHF is configured to complete a charging process for the target UE based on the target charging information.

8. A charging method characterized by, The charging method is applied to a signaling interworking gateway, the signaling interworking gateway being arranged in the public-private fusion network system of claim 7, the method comprising: In a case where the charging information sent by the private network SMF is received, key information of the private network SMF in the charging information is hidden to obtain target charging information, and the target charging information is sent to the public network CHF; In a case where the response information sent by the public network CHF is received, key information of the public network CHF in the response information is hidden to obtain target response information, and the target response information is sent to the private network SMF.

9. The method of claim 8, wherein, The hiding of the key information of the private network SMF in the charging information to obtain the target charging information comprises: The key information of the private network SMF in the charging information is identified and deleted to obtain the target charging information. The hiding of the key information of the public network CHF in the response information to obtain the target response information comprises: The key information of the public network CHF in the response information is identified and deleted to obtain the target response information.

10. A gateway device comprising a memory and a processor, the memory storing a computer program, characterized in that, The processor, when executing the computer program, implements the steps of the method in claim 8 or 9.

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