CN116546659A - 5G data service processing method, device, system, server and medium - Google Patents

5G data service processing method, device, system, server and medium Download PDF

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Publication number
CN116546659A
CN116546659A CN202310558816.5A CN202310558816A CN116546659A CN 116546659 A CN116546659 A CN 116546659A CN 202310558816 A CN202310558816 A CN 202310558816A CN 116546659 A CN116546659 A CN 116546659A
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China
Prior art keywords
dnn
private network
data
network
terminal
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李斌
李慧敏
姜明
徐延辉
韩笑
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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Priority to CN202310558816.5A priority Critical patent/CN116546659A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The application provides a 5G data service processing method, equipment, a system, a server and a medium. Comprising the following steps: the AMF identifies whether the data service request carries IMS voice DNN according to the received data service request sent by the 5G terminal; if the AMF recognizes that the data service request carries the IMS voice DNN, inquiring whether the IMS voice DNN exists in the UDM, if so, acquiring a public network default slice corresponding to the IMS voice DNN, sending the public network default slice and the IMS voice DNN to a public network SMF, so that the public network SMF distributes a public network IP address corresponding to the IMS voice DNN, and sends the public network IP address and the IMS voice DNN to the 5G terminal, so that the 5G terminal is connected with an IMS network through a public network user plane UPF according to the IMS voice DNN and the public network IP address to establish an IMS voice session. The application solves the problem of failure of session establishment in the prior art, and improves user experience.

Description

5G data service processing method, device, system, server and medium
Technical Field
The present disclosure relates to communication technologies, and in particular, to a method, an apparatus, a system, a server, and a medium for processing a 5G data service.
Background
The fifth generation mobile communication technology (5 th Generation Mobile Communication Technology, abbreviated as 5G) is not only a transition of a round of communication technology, but also brings about fundamental change of network service architecture. The 5G private network has the advantages of large bandwidth, wide connection, low time delay, high safety and the like, and the 5G private network has the characteristics of suitability for deployment region, individuation of network requirements, industrial application scene and the like. Through the 5G slicing technology based on the service architecture, operators can furthest improve the adaptability of the network to external environments, client demands and service scenes, improve the utilization efficiency of network resources, and build a flexible and agile 5G network.
Specifically, when a terminal using a 5G private network initiates a voice session under the existing 5G network architecture by using an IMS voice data network name (Data Network Name, DNN) of the system, only a single default slice is signed in the UDM subscription data of the terminal, and only private network data DNN is bound under the slice. An access and mobility management function (Access and Mobility Management Function, AMF) receives IMS voice DNN of a 5G terminal, is inconsistent with DNN in unified data management (Unified Data Management, UDM) subscription data of the terminal, performs error correction by the AMF, sends a slice in the UDM subscription data and private network data DNN to the SMF, the SMF allocates a private network IP address according to the private network data DNN, then the AMF sends the private network IP address and the private network data DNN to the terminal, and the terminal determines that DNN and IP address types are wrong, so that session establishment fails. In addition, when the terminal initiates a voice session by using IMS voice DNN, UDM signs a single default slice, and only private network data DNN and IMS voice DNN are bound under the slice, AMF receives IMS voice DNN of the 5G terminal and is consistent with DNN in the terminal UDM sign data, then AMF sends the IMS voice DNN and the slice to SMF, SMF distributes public network IP address according to IMS voice DNN, terminal judges that DNN and IP address are correct, terminal sends a determining instruction to SMF, SMF selects private network UPF, but private network user plane UPF is not connected with IMS network, and session establishment failure is caused. Both cases result in a failure of terminal session establishment, and the terminal cannot reside in 5G, fall back to 4G, greatly affecting user experience.
Therefore, a way is needed to effectively improve the success rate of session establishment of private network terminals in the 5G industry.
Disclosure of Invention
The application provides a 5G data service processing method, equipment, a system, a server and a medium, which are used for solving the problem of how to improve the success rate of establishing a 5G private network session.
In a first aspect, the present application provides a method for processing a 5G data service, including:
and the AMF identifies whether the IMS voice DNN or the private network data DNN is carried in the data service request according to the data service request sent by the receiving 5G terminal.
If the AMF recognizes that the IMS voice DNN is carried in the data service request, inquiring whether the IMS voice DNN exists in subscription data corresponding to the 5G terminal in the UDM, if so, acquiring a public network default slice corresponding to the IMS voice DNN from the subscription data, sending the public network default slice and the IMS voice DNN to a public network SMF, so that the public network SMF distributes a public network IP address corresponding to the IMS voice DNN, and sends the public network IP address and the IMS voice DNN to the 5G terminal, so that the 5G terminal is connected with an IMS network through a public network user plane UPF according to the IMS voice DNN and the public network IP address, and an IMS voice session is established.
In a possible implementation manner, if the AMF identifies that the private network data DNN is carried in the data service request, the AMF queries whether the private network data DNN exists in subscription data corresponding to the 5G terminal in the UDM, if so, obtains a private network default slice corresponding to the private network data DNN from the subscription data, and sends the private network default slice and the private network data DNN to a private network SMF, so that the private network SMF allocates a private network IP address corresponding to the private network data DNN, and sends the private network IP address and the private network data DNN to the 5G terminal, so that the 5G terminal connects a private network data network through a private network UPF according to the private network data DNN and the private network IP address, and performs data service processing.
In a possible implementation manner, the AMF receives a registration request sent by the 5G terminal, and if the AMF determines that no network slice selection auxiliary information is carried in the registration request, the AMF uses a private network slice and a public network slice of a subscription in subscription data corresponding to the 5G terminal in the UDM as the private network default slice and the public network default slice.
In a second aspect, the present application provides a session establishment processing apparatus, including:
the receiving and transmitting module is used for receiving a data service request sent by the 5G terminal;
and the processing module is used for identifying whether the IMS voice DNN or private network data DNN is carried in the data service request.
The processing module is further configured to query whether the IMS voice DNN exists in subscription data corresponding to the 5G terminal in the UDM if the IMS voice DNN is identified as being carried in the data service request, and if so, obtain a public network default slice corresponding to the IMS voice DNN from the subscription data, and send the public network default slice and the IMS voice DNN to a public network SMF, so that the public network SMF allocates a public network IP address corresponding to the IMS voice DNN, and sends the public network IP address and the IMS voice DNN to the 5G terminal, so that the 5G terminal connects to an IMS network through a public network user plane UPF according to the IMS voice DNN and the public network IP address, so as to establish an IMS voice session.
And the processing module is further configured to query whether the private network DNN exists in subscription data corresponding to the 5G terminal in the UDM if the private network data DNN is identified as being carried in the data service request, and if so, acquire a private network default slice corresponding to the private network data DNN from the subscription data, and send the private network default slice and the private network data DNN to a private network SMF, so that the private network SMF allocates a private network IP address corresponding to the private network data DNN, and sends the private network IP address and the private network data DNN to the 5G terminal, so that the 5G terminal connects to a private network data network according to the private network data DNN and the private network IP address, and selectively performs data service processing through a private network UPF.
The receiving and transmitting module is further configured to receive a registration request sent by the 5G terminal.
The processing module is further configured to determine whether the registration request carries network slice selection auxiliary information.
And the processing module is further configured to, if it is determined that the registration request does not carry network slice selection auxiliary information, use a private network slice and a public network slice of a subscription in subscription data corresponding to the 5G terminal in the UDM as the private network default slice and the public network default slice.
In a third aspect, a server includes a memory and a processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory is used for storing a computer program.
The processor is configured to read the computer program stored in the memory, and execute the data service processing method according to the first aspect according to the computer program in the memory.
A fourth aspect, a data service processing system includes a 5G terminal, an AMF, a UDM, a private network SMF, a public network SMF, a private network UPF connected to the private network SMF, and a public network UPF connected to the public network SMF; the AMF is used for executing the data service processing method in the first aspect.
And the 5G terminal sends a session establishment request to the public network SMF according to the IMS voice DNN, so that the public network SMF can select to pass through the public network UPF to perform IMS voice session processing.
In a fifth aspect, a computer readable storage medium has stored therein computer executable instructions that when executed by a processor implement the data traffic processing method according to the first aspect.
The method, the device, the system, the server and the medium for processing the 5G data service provided by the application, wherein the AMF acquires a data service request initiated by a 5G terminal and identifies whether the data service request carries IMS voice DNN. If the IMS voice DNN is carried in the data service request, inquiring whether the IMS voice DNN exists in subscription data corresponding to the 5G terminal in the UDM, if so, acquiring a public network default slice corresponding to the IMS voice DNN from the subscription data, sending the public network default slice and the IMS voice DNN to a public network SMF, so that the public network SMF distributes a public network IP address corresponding to the IMS voice DNN, and sending the public network IP address and the IMS voice DNN to the 5G terminal, so that the 5G terminal can connect an IMS network through a public network UPF according to the IMS voice DNN and the public network IP address to establish an IMS voice session. Compared with the prior art that the private network UPF cannot be connected with the IMS voice network to cause the private network session establishment failure, the method and the device can sign up double default slices, and match the IMS voice DNN reported by the 5G terminal to the public network default slices, so that the success of the private network session establishment is realized, and therefore, the success rate of the private network session establishment is effectively improved, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a system configuration diagram of a 5G data service processing method provided in this embodiment;
fig. 2 is a flow chart of a 5G data service processing method provided in this embodiment;
fig. 3 is a flow chart of another method for processing 5G data service according to the present embodiment;
fig. 4a is a schematic signaling flow diagram of a 5G data service processing method according to the present embodiment;
fig. 4b is a schematic signaling flow diagram of another 5G data service processing method according to the present embodiment;
fig. 5 is a schematic structural diagram of a 5G data service processing apparatus according to this embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application, as detailed in the accompanying claims, rather than all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The terms referred to in this application are explained first:
default slice: meaning that depending on the operator' S policy, one or more of the UDM subscription slices may be set to default slices, and if the UE does not carry slice information in the registration request message (Registration Request), the network will use the default S-NSSAI to provide services to the terminal.
Slicing: network slicing is a key feature of 5G networks, where dedicated logical networks can be built on a shared infrastructure. 5G network slices represent a network architecture that allows independent and virtualized logical networks to multiplex the same physical network infrastructure. Each slice is a separate end-to-end network to meet the various needs of a particular application.
Access and mobility management functions (Access and Mobility Management Function, AMF): the network function is very important in 5G, and directly manages the request of 5G wireless access, performs registration management, connection management, reachability management, mobility management and other functions.
The user plane function (User Plane Function, UPF) is one of the important network functions in 5G. Packet routing and forwarding, packet inspection, user plane part policy rules enforcement.
Session management function (Session Management Function, SMF): session management, such as session establishment, modification and release, including maintenance of tunnels between UPF and AN nodes, IP address assignment and management of UEs, and the like.
Data network name (Data Network Name, DNN): the main function is to distinguish the access of different data networks, and to collect the session split to different SMF/UPF according to DNN, to realize the client oriented access.
Unified data management (Unified Data Management, UDM): and generating 3GPPAKA authentication credentials, and carrying out identification processing on the user and legality authentication on the user through storage and management of SUPI.
Policy control function (Policy Control Function, PCF): one of the network functions of the 5G core network. Its main function is to use a unified policy framework to manage network behavior and to cooperate with user information in the UDR to execute the relevant policies.
Proxy call session control function (Proxy-Call Session Control Function, P-CSCF): the P-CSCF is the first contact node (in the signalling plane) of a user in the IMS, which is an outbound/inbound SIP proxy server from the SIP perspective, and all SIP signalling, whether from a User Equipment (UE) or sent to the UE, has to go through the P-CSCF. The UE may obtain the address of the P-CSCF using a local CSCF discovery mechanism. The P-CSCF is responsible for validating the request, forwarding it to the specified target, and processing and forwarding the response.
IP multimedia system (IP Multimedia Subsystem, IMS): is a brand new multimedia service form, and can meet the requirements of more novel and diversified multimedia services of terminal clients. IMS is considered as a core technology of the next generation network, and is also an important way to solve the problem of integration of mobile and fixed networks and introduce differentiated services such as triple integration of voice, data and video.
In the prior art, when a 5G terminal in a private network establishes a session, the 5G terminal cannot be connected to an IMS voice network due to the safety problem, so that terminal equipment in the private network can only access private network data, the IMS voice session cannot be established, and further the terminal cannot reside in the 5G and fall back to 4G.
Based on this, in order to solve the above technical problems, the technical idea of the present application is how to effectively improve the success rate of the session establishment of the 5G terminal.
Fig. 1 is a block diagram of a communication system to which a 5G data service processing method provided in the present application is applied, as shown in fig. 1, the system may include: 5G terminal 101, AMF 102, UDM 103, public network SMF 104, UPF 105, public network voice network 106, PCF 107, private network SMF 108, private network UPF 109, and private network data network 110.
When a user of the 5G terminal 101 opens an account, the subscription data includes slice information supported by the user, such as a subscription public network data slice and a subscription private network data slice, IMS voice DNN is bound in the subscription public network data slice, and private network data DNN is bound under the subscription private network data slice, and is stored in a USIM card of the 5G terminal and UDM of the network side. In addition, the contracted public network data slice and the contracted private network data slice are both marked as default, which indicates that when the 5G terminal does not carry slice information, the network side defaults to the slice which the user supports access.
It should be noted that, fig. 1 is only a system structure diagram of a 5G data service processing method provided by an embodiment of the present application, and the embodiment of the present application does not limit the actual forms of various devices included in fig. 1, nor limit the interaction manner between the devices in fig. 1, and in a specific application of the scheme, the system structure diagram may be set according to actual requirements.
The following describes the technical scheme of the present application in detail through specific embodiments. It should be noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 2 is a flow chart of a 5G data service processing method provided in this embodiment. As shown in fig. 2, specifically, the method includes:
s201, the AMF identifies whether IMS voice DNN or private network data DNN is carried in the data service request according to the data service request sent by the receiving 5G terminal.
S202, if the AMF recognizes that the IMS voice DNN is carried in the data service request, inquiring whether the IMS voice DNN exists in subscription data corresponding to the 5G terminal in the UDM.
In this embodiment, when the 5G terminal opens an account, the subscription data of the 5G terminal already includes a public network data slice for subscription and a private network data slice for subscription. In addition, when the 5G terminal is registered for the first time, network slice selection auxiliary information is not carried, and a private network slice and a public network slice of a subscription in subscription data corresponding to the 5G terminal in the UDM are used as the private network default slice and the public network default slice.
Based on this, when the 5G terminal initiates the data service request, since the subscription data corresponding to the 5G terminal is already stored in the UDM, and the dual default slice and the DNN corresponding to the dual default slice are stored in the subscription data, it is possible to query whether the IMS voice DNN exists in the subscription data.
And S203, if the AMF determines that the IMS voice DNN exists, acquiring a public network default slice corresponding to the IMS voice DNN from the double default slices, and sending the public network default slice to the public network SMF so that the public network SMF can distribute a public network IP address corresponding to the IMS voice DNN and send the public network IP address to the 5G terminal, so that the 5G terminal can be connected with an IMS network through a public network UPF according to the IMS voice DNN and the public network IP address to establish an IMS voice session.
Specifically, the 5G terminal initiates the session establishment request with the IMS voice DNN, and the AMF may obtain a public network default slice corresponding to the IMS voice DNN from the dual default slices in the subscription data of the UDM, and send the IMS voice DNN and the corresponding public network default slice to the public network SMF. And the public network SMF distributes a public network IP address for the IMS voice DNN from the IP pool according to the IMS voice DNN, and sends the public network IP address and the IMS voice DNN to the 5G terminal.
Meanwhile, the public network SMF distributes a P-CSCF address for the IMS voice DNN according to the IMS voice DNN, and sends the P-CSCF address to the UPF. And then the 5G terminal sends data to the UPF according to the public network IP address, and the UPF forwards the data to the IMS data network through the P-CSCF address so as to establish the IMS voice session.
In this embodiment, according to a received data service request sent by a 5G terminal, if the AMF recognizes that the data service request carries the IMS voice DNN, the AMF queries whether the IMS voice DNN exists in the UDM, if so, obtains a public network default slice corresponding to the IMS voice DNN, and sends the public network default slice and the IMS voice DNN to a public network SMF, so that the public network SMF allocates a public network IP address and a P-CSCF address corresponding to the IMS voice DNN, sends the public network IP address and the IMS voice DNN to the 5G terminal, and sends the P-CSCF address to the UPF, so that the 5G terminal sends data to the UPF according to the public network IP address, and the UPF sends the data to an IMS network through the P-CSCF address. Compared with the prior art that when carrying IMS voice DNN, the private network SMF fails to allocate the correct IP address and DNN, and the session establishment fails, because the user of the 5G terminal signs a contract with the double default slices, when carrying IMS voice DNN, the public network default slices corresponding to IMS voice DNN can be selected from the double default slices, so that the correct IP address and DNN can be allocated according to the public network default slices, thereby effectively realizing IMS voice session, and effectively improving the success rate of establishing session of the terminal and user experience.
Fig. 3 is a flow chart of another method for processing 5G data service according to this embodiment. On the basis of the embodiment shown in fig. 2, as shown in fig. 3, the method further includes:
s301, if the AMF recognizes that the private network data DNN is carried in the data service request.
S302, if the AMF recognizes that the private network data DNN is carried in the data service request, inquiring whether the private network data DNN exists in the terminal subscription information in the UDM, if so, the AMF acquires a private network default slice corresponding to the private network data DNN, and sends the private network default slice and the private network data DNN to a private network SMF, so that the private network SMF distributes a private network IP address corresponding to the private network data DNN, and sends the private network IP address and the private network data DNN to the 5G terminal, so that the 5G terminal is connected with a private network data network according to the private network data DNN and the private network IP address to perform data service processing.
When the 5G terminal opens an account, the subscription data of the 5G terminal includes a public network data slice for subscription and a private network data slice for subscription. In addition, when the 5G terminal is registered for the first time, network slice selection auxiliary information is not carried, and a private network slice and a public network slice of a subscription in subscription data corresponding to the 5G terminal in the UDM are used as the private network default slice and the public network default slice.
Based on this, in this embodiment, the AMF obtains, from the UDM, a private network default slice corresponding to the private network data DNN according to the private network data DNN carried in the data service request, and sends the private network data DNN and the corresponding private network default slice to the private network SMF. The private network SMF takes out the private network IP address from the IP pool according to the private network data DNN, and sends the private network IP address to the terminal, the terminal sends the data to the private network UPF through the private network IP address, and the private network UPF forwards the data to the private network data network to process the private network data service.
In this embodiment, according to a received data service request sent by a 5G terminal, if the AMF identifies that the private network data DNN is carried in the data service request, the AMF queries whether the private network data DNN exists in the UDM, if so, obtains a private network default slice corresponding to the private network data DNN, and sends the private network default slice and the private network data DNN to a private network SMF, so that the private network SMF allocates a private network IP address corresponding to the private network data DNN, and sends the private network IP address and the private network data DNN to the 5G terminal, so that the 5G terminal sends data to a private network UPF through the private network IP address, and the private network UPF forwards the data to a private network data network for private network data service processing. Compared with the prior art that when the voice session is initiated by carrying the IMS voice DNN, the private network UPF is not connected with the IMS network, so that the session establishment is failed, the method and the device sign up double default slices, and the IMS voice session can be established on the premise that the 5G terminal can normally transmit private network data. Therefore, the success rate of session establishment is effectively improved, and meanwhile, compared with the prior art that the session request is failed to be established in the 5G network, the method and the device for establishing the session in the 4G network fall back, ensure stability of voice service, and greatly improve user experience.
Fig. 4a and fig. 4b are schematic signaling flow diagrams of a 5G data service processing method according to this embodiment. As shown in fig. 4a and 4b, the method comprises:
s401, the 5G terminal sends a data service request to the AMF, wherein the data service request comprises IMS voice DNN or private network data DNN.
In this embodiment, the IMS voice DNN included in the data service request sent by the 5G terminal is self-contained in the 5G terminal system, and the private network data DNN needs to be configured in the 5G terminal by the user.
S402, the AMF receives DNN in the data service request and acquires a default slice corresponding to the DNN from the UDM subscription data.
In this embodiment, if the DNN is identified as an IMS voice DNN, a public network default slice corresponding to the IMS voice DNN is obtained from the UDM subscription data; if the DNN is identified as private network data DNN, acquiring a private network default slice corresponding to the private network data DNN from UDM subscription data.
When the 5G terminal opens an account, the subscription data of the 5G terminal includes a public network data slice for subscription and a private network data slice for subscription. In addition, when the 5G terminal is registered for the first time, network slice selection auxiliary information is not carried, and a private network slice and a public network slice of a subscription in subscription data corresponding to the 5G terminal in the UDM are used as the private network default slice and the public network default slice.
S403, AMF selects the SMF type according to DNN and the corresponding slice.
It should be noted that, if the default slice is the IMS voice DNN and the default slice of the public network, the AMF selects the public network SMF, and if the default slice is the private network data DNN and the default slice of the private network, the AMF selects the private network SMF.
S404, the AMF sends IMS voice DNN to the public network SMF or sends private network data DNN to the private network SMF.
Specifically, the details of sending the IMS voice DNN to the public network SMF based on the AMF are described in detail, specifically as shown in fig. 4 a:
s405, the public network SMF distributes IP addresses according to the IMS voice DNN.
The public network SMF allocates a public network IP address and a PCSCF address from the IP address pool according to the IMS voice DNN.
S406, the public network SMF sends the IMS voice DNN and the public network IP address to the 5G terminal.
It should be noted that, the public network SMF sends the public network IP address and the DNN to the public network AMF first, and then the AMF sends the public network IP address and the DNN to the terminal.
S407, SMF selects UPF according to DNN and slice.
If the voice DNN of the IMS and the default slice of the public network are obtained, the public network UPF is selected.
S408, the SMF sends the P-CSCF address to the UPF.
The public network SMF sends the P-CSCF address to the public network UPF.
S409, the 5G terminal initiates a data service request to the UPF.
In addition, specifically, the specific details of the sending of the private network data DNN to the private network SMF based on the AMF will be described specifically as shown in fig. 4 b:
s413, the AMF sends the private network data DNN to the private network SMF. S414, the private network SMF distributes IP addresses according to the private network DNN. For example, the private network SMF allocates a private network IP address from the IP address pool according to the private network data DNN.
S415, the private network SMF sends the private network data DNN and the private network IP address to the 5G terminal.
For example, the private network SMF transmits the private network IP address and the private network data DNN to the AMF, and then the AMF transmits the private network IP address and the private network data DNN to the 5G terminal.
And the AMF selects the private network SMF according to the private network data DNN and the private network default slice obtained from the 5G terminal report information and the UDM subscription information.
S416, the private network SMF selects UPF according to DNN and slices.
Private network SMF selects private network UPF according to the private network data DNN and the private network default slice sent by AMF.
S417, 5G terminal initiates a data service request to private network UPF.
In this embodiment, if a voice session request is established, the 5G terminal sends data to the public network UPF according to the public network IP address, and the public network UPF sends the data to the IMS data network through the P-CSCF address to perform a session service request; if the private network data access is performed, the 5G terminal sends the data to the private network UPF according to the private network IP address, and the private network UPF forwards the data to the private network data network to perform the data service request.
For the case of failure of establishing voice session of private network terminal, a signaling flow of a 5G data service processing method is provided based on the implementation. First, the 5G terminal transmits a data service processing request to the AMF, where the data service processing request includes DNN. The AMF receives DNN in the data service processing request and acquires a default slice corresponding to the DNN from the UDM subscription data. If the DNN is IMS voice DNN, the public network default slice is corresponding, and if the DNN is private network data DNN, the private network default slice is corresponding. Second, the AMF selects the SMF type based on the DNN and the corresponding slice. The AMF sends the IMS voice DNN to the public network SMF or sends the private network data DNN to the private network SMF. The SMF then allocates an IP address according to the DNN and sends the DNN and the IP address to the 5G terminal. The SMF then sends the DNN and slice to the UPF and the P-CSCF address to the UPF. And finally, the 5G terminal initiates a data service request to the UPF. The embodiment aims at the situation that when a 5G terminal in a private network initiates a session request, failure occurs, and by signing up double default slices, the terminal in the 5G private network can access private network data and also can establish IMS voice session. The success rate of the 5G terminal session establishment is improved, the terminal is ensured to reside in 5G, and the user experience is greatly improved. Fig. 5 is a schematic structural diagram of a 5G data service processing apparatus according to this embodiment. As shown in fig. 5, the apparatus includes: a transceiver module 501 and a processing module 502. Wherein, the liquid crystal display device comprises a liquid crystal display device,
and the transceiver module 501 is configured to receive a data service request sent by the 5G terminal.
A processing module 502, configured to identify whether the IMS voice DNN or the private network data DNN is carried in the data service request; if the IMS voice DNN is carried in the data service request, inquiring whether the IMS voice DNN exists in subscription data corresponding to the 5G terminal in the UDM, if so, acquiring a public network default slice corresponding to the IMS voice DNN from the subscription data, sending the public network default slice and the IMS voice DNN to a public network SMF, so that the public network SMF distributes a public network IP address corresponding to the IMS voice DNN, and sending the public network IP address and the IMS voice DNN public network default slice to the 5G terminal, so that the 5G terminal can connect an IMS network through a public network user plane UPF according to the IMS voice DNN public network default slice and the public network IP address to establish IMS voice session. Optionally, if the private network data DNN carried in the data service request is identified, the processing module 502 may be further configured to query whether the private network DNN exists in subscription data corresponding to the 5G terminal in the UDM, if so, obtain a private network default slice corresponding to the private network data DNN from the subscription data, and send the private network default slice and the private network data DNN to a private network SMF, so that the private network SMF allocates a private network IP address corresponding to the private network data DNN, and sends the private network IP address and the private network data DNN to the 5G terminal, so that the 5G terminal connects to a private network data network through a private network UPF according to the private network data DNN and the private network IP address, and performs data service processing.
Optionally, the transceiver module 501 is further configured to receive a registration request sent by the 5G terminal; the processing module 502 is further configured to determine whether the registration request carries network slice selection auxiliary information; and if the network slice selection auxiliary information is not carried in the o registration request, taking the contracted private network slice and the contracted public network slice in the contracted data corresponding to the 5G terminal in the UDM as the private network default slice and the public network default slice.
The 5G data service processing device provided in this embodiment may be specifically an AMF, and may execute the technical solution shown in the foregoing method embodiment, so that the implementation principle and the beneficial effects are similar, and no redundant description is given here.
The embodiment also provides a server comprising a memory and a processor, wherein the memory is used for storing a computer program; the processor is configured to read the computer program stored in the memory, and execute the embodiment of the method according to the computer program in the memory, which is not described herein.
The embodiment provides a 5G data service processing system structure diagram. The system comprises: the embodiment of the method shown in the foregoing is used for executing the AMF, and is not repeated herein.
In addition, optionally, the 5G terminal sends a session establishment request to the public network SMF according to the IMS voice DNN, so that the public network SMF selects to pass through the public network UPF to perform IMS voice session processing.
The present embodiment also provides a computer readable storage medium, in which computer executable instructions are stored, and when a processor executes the computer executable instructions, the embodiments shown in the above method are implemented, which is not described herein again.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (10)

1. A method for processing data traffic, comprising:
the access and mobile management function AMF identifies whether the data service request carries an IP multimedia system IMS voice data network name DNN or private network data DNN according to the data service request sent by the receiving 5G terminal;
if the AMF recognizes that the data service request carries the IMS voice DNN, inquiring whether the IMS voice DNN exists in subscription data corresponding to the 5G terminal in a unified data management UDM, if so, acquiring a public network default slice corresponding to the IMS voice DNN from the subscription data, and sending the public network default slice and the IMS voice DNN to a public network session management function SMF, so that the public network SMF distributes a public network IP address corresponding to the IMS voice DNN, and sends the public network IP address and the IMS voice DNN to the 5G terminal, so that the 5G terminal is connected with an IMS network through a public network user plane function UPF according to the IMS voice DNN and the public network IP address to establish an IMS voice session;
wherein, the subscription data comprises a private network slice for subscription and a public network slice for subscription.
2. The method as recited in claim 1, further comprising:
if the AMF recognizes that the private network data DNN is carried in the data service request, inquiring whether the private network data DNN exists in subscription data corresponding to the 5G terminal in the UDM, if so, acquiring a private network default slice corresponding to the private network data DNN from the subscription data, sending the private network default slice and the private network data DNN to a private network SMF, so that the private network SMF distributes a private network IP address corresponding to the private network data DNN, and sends the private network IP address and the private network data DNN to the 5G terminal, so that the 5G terminal can connect a private network data network through the private network UPF according to the private network data DNN and the private network IP address to perform data service processing.
3. The method as recited in claim 2, further comprising:
the AMF receives a registration request sent by the 5G terminal;
and if the AMF determines that the registration request does not carry network slice selection auxiliary information, taking a private network slice and a public network slice of subscription in subscription data corresponding to the 5G terminal in the UDM as the private network default slice and the public network default slice.
4. A data service processing apparatus, comprising:
the receiving and transmitting module is used for receiving a data service request sent by the 5G terminal;
the processing module is used for identifying whether the IMS voice DNN or private network data DNN is carried in the data service request;
the processing module is further configured to query whether the IMS voice DNN exists in subscription data corresponding to the 5G terminal in the UDM if the IMS voice DNN is identified as being carried in the data service request, and if so, obtain a public network default slice corresponding to the IMS voice DNN from the subscription data, and send the public network default slice and the IMS voice DNN to a public network SMF, so that the public network SMF allocates a public network IP address corresponding to the IMS voice DNN, and sends the public network IP address and the IMS voice DNN to the 5G terminal, so that the 5G terminal connects to an IMS network through a public network user plane UPF according to the IMS voice DNN and the public network IP address, so as to establish an IMS voice session.
5. The data service processing device according to claim 4, wherein the processing module is further configured to query whether the private network DNN exists in subscription data corresponding to the 5G terminal in the UDM if the private network data DNN is identified as being carried in the data service request, and if so, acquire a private network default slice corresponding to the private network data DNN from the subscription data, and send the private network default slice and the private network data DNN to a private network SMF, so that the private network SMF allocates a private network IP address corresponding to the private network data DNN, and sends the private network IP address and the private network data DNN to the 5G terminal, so that the 5G terminal connects a private network data network through a private network UPF according to the private network data DNN and the private network IP address, and performs data service processing.
6. The data service processing device according to claim 5, wherein the transceiver module is further configured to receive a registration request sent by the 5G terminal;
the processing module is further configured to determine whether the registration request carries network slice selection auxiliary information;
and the processing module is further configured to, if it is determined that the registration request does not carry network slice selection auxiliary information, use a private network slice and a public network slice of a subscription in subscription data corresponding to the 5G terminal in the UDM as the private network default slice and the public network default slice.
7. A server comprising a memory and a processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory is used for storing a computer program;
the processor being configured to read a computer program stored in the memory and to perform the method according to any of the preceding claims 1-3 according to the computer program in the memory.
8. A data traffic processing system, comprising: the system comprises a 5G terminal, an AMF, a UDM, a private network SMF, a public network SMF, a private network UPF connected with the private network SMF and a public network UPF connected with the public network SMF; wherein the AMF is configured to perform the data service processing method of any one of claims 1 to 3.
9. The system of claim 8 wherein the 5G terminal sends a session establishment request to the public network SMF according to the IMS voice DNN, such that the public network SMF selects to pass through the public network UPF for IMS voice session processing.
10. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor implement the method of any of the preceding claims 1-3.
CN202310558816.5A 2023-05-17 2023-05-17 5G data service processing method, device, system, server and medium Pending CN116546659A (en)

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