CN111263407B - Data communication shunting method, device and system - Google Patents
Data communication shunting method, device and system Download PDFInfo
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- CN111263407B CN111263407B CN202010061281.7A CN202010061281A CN111263407B CN 111263407 B CN111263407 B CN 111263407B CN 202010061281 A CN202010061281 A CN 202010061281A CN 111263407 B CN111263407 B CN 111263407B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/005—Transmission of information for alerting of incoming communication
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Abstract
The invention discloses a data communication shunting method, equipment, a system and a storage medium. The method is operated on a private network side in edge calculation, a base station of the private network side receives a data communication request of a user terminal, then a network slice to be accessed by the data communication request is obtained from the received data communication request, whether the private network supports the network slice or not is detected, and if the private network supports the network slice, the data communication request is shunted to the private network. Therefore, the user terminal and the public network side can realize the shunting of data communication without sensing the existence of the private network, the dependence of the private network on the public network is greatly reduced, the private network is easier to independently build and flexibly expand, and the management burden of public network operators is greatly reduced.
Description
Technical Field
The invention relates to the field of Network communication, in particular to a Data communication shunting method, equipment and system for shunting access to a Data Network (DN) to a private Network under a 5G edge computing scene.
Background
In order to improve the user experience and reduce the access delay at the 5G edge, data access needs to be shunted to a private network to reach the DN.
At present, the private network defined by the specification mainly adopts a networking mode of public network access private network (PNI-NPN). For example, a private network service is provided through a PLMN network, that is, a Closed Access Group (CAG) is used to control a private network. CAG cells supported by a user can be designated in subscription information, when a user terminal (UE) is accessed, whether the base station supports the CAG cells is determined to be connected to a public network or a private network, and the base station selects to be accessed to the private network or the public network according to CAG information or CAG indication marks carried by the user.
It can be seen that there is a great dependence on public networks to implement this scheme, and thus the following problems occur: 1) the private network is not beneficial to the independent construction of the private network, because the private network must depend on the public network and the private network elements are fused into the public network; 2) for public network construction, a corresponding function needs to be added in a public network to manage a private network element, and the management and perception of the private network can be supported only by keeping the context synchronization of the public network element and the private network element; 3) and the user terminal also needs to configure the CAG information. These problems all certainly increase the difficulty of landing the solution.
In addition, many industries and enterprises do not want public networks and user terminals to sense private networks, and the existing solutions cannot meet the requirement.
Disclosure of Invention
In view of the above problems, the present inventors have innovatively provided a offloading method, device, system, and storage medium for data communication.
According to a first aspect of the embodiments of the present invention, there is provided a offloading method for data communication, where the method operates in a base station on a private network side, and the method includes: receiving a data communication request sent by a user terminal; acquiring a network slice to be accessed by a data communication request; and detecting whether the private network supports the access to the network slice, and if so, shunting the data communication request to the private network.
According to an embodiment of the present invention, wherein the method further comprises: and providing the related information of the user terminal to the private network.
According to an embodiment of the present invention, wherein the method further comprises: and if the base station switching is needed in the process of processing the data communication request, switching the base station in the private network.
According to an embodiment of the present invention, wherein the method further comprises: if downward paging is needed in the process of processing the data communication request, the downward paging process of the public network session is activated first, and then the downward paging process of the private network session is activated.
According to an embodiment of the present invention, detecting whether the private network supports access to the network slice, and if so, offloading the data communication request to the private network includes: when a session is established, whether a private network supports access to a network slice is detected, and if so, the session is established with the private network; when modifying the conversation, detecting whether the private network supports the access to the network slice, if so, initiating a conversation modifying flow to the private network; when releasing the session, detecting whether the private network supports the access to the network slice, if so, initiating a session releasing flow to the private network; when the uplink data is forwarded, whether the private network supports the access to the network slice is detected, if so, the tunnel encapsulation is carried out by adopting a private network general packet radio service tunneling protocol GTP and the encapsulated tunnel is sent to a private network user plane function UPF.
According to an embodiment of the present invention, before receiving a data communication request sent by a user terminal, the method further includes: adding network slices supported by the private network in the configuration information of the private network; accordingly, detecting whether the private network supports access to the network slice comprises: obtaining network slices supported by a private network from configuration information of the private network; and searching the network slice to be accessed by the data communication request in the network slices supported by the private network, wherein if the search result is not null, the detection result is yes, and if the search result is null, the detection result is no.
According to a second aspect of the embodiments of the present invention, an offloading device for data communication includes: the receiving module is used for receiving a data communication request sent by a user terminal; the acquisition module is used for acquiring the network slice to be accessed by the data communication request; and the distribution module is used for detecting whether the private network supports the access to the network slice, and distributing the data communication request to the private network if the private network supports the access to the network slice.
According to an embodiment of the present invention, wherein the apparatus further comprises: and the user terminal information providing module is used for providing the related information of the user terminal to the private network.
According to an embodiment of the present invention, wherein the apparatus further comprises: and the base station switching module is used for switching the base station in the private network if the base station needs to be switched in the process of processing the data communication request.
According to an embodiment of the present invention, wherein the apparatus further comprises: and the downward paging module is used for activating a downward paging flow of a public network session and then activating a downward paging flow of a private network session if downward paging is required in the process of processing the data communication request.
According to an embodiment of the present invention, the shunting module is specifically configured to: when a session is established, whether a private network supports access to a network slice is detected, and if so, the session is established with the private network; when modifying the conversation, detecting whether the private network supports the access to the network slice, if so, initiating a conversation modifying flow to the private network; when releasing the session, detecting whether the private network supports the access to the network slice, if so, initiating a session releasing flow to the private network; when the uplink data is forwarded, whether the private network supports the access to the network slice is detected, if so, the tunnel encapsulation is carried out by adopting a private network general packet radio service tunneling protocol GTP and the encapsulated tunnel is sent to a private network user plane function UPF.
According to an embodiment of the present invention, wherein the apparatus further comprises: the private network configuration module is used for adding network slices supported by the private network in the configuration information of the private network; correspondingly, the shunting module comprises a network slice acquisition unit, a network slice acquisition unit and a shunting module, wherein the network slice acquisition unit is used for acquiring network slices supported by a private network from configuration information of the private network; and the searching unit is used for searching the network slice to be accessed by the data communication request in the network slices supported by the private network, if the searching result is not empty, the detection result is yes, and if the searching result is empty, the detection result is no.
According to a third aspect of the embodiments of the present invention, a data communication offloading system includes: the system comprises a user terminal, a data communication server and a data communication server, wherein the user terminal is used for sending a data communication request, and the data communication request carries a network slice to be accessed; the private network is used for executing the shunting method of any one of the data communication; and the public network is used for receiving the registration of the user terminal, sending the relevant information of the user terminal to the private network and executing the operation of the data communication request on the public network side.
According to a fourth aspect of the embodiments of the present invention, a storage medium stores program instructions thereon, where the program instructions are used for executing the offloading method of data communication of any one of the above.
The embodiment of the invention provides a data communication shunting method, equipment, a system and a storage medium. The method is operated in a base station at a private network side, the base station at the private network side receives a data communication request of a user terminal, then a network slice to be accessed by the data communication request is obtained from the received data communication request, whether the private network supports the network slice or not is detected, and if the private network supports the network slice, the data communication request is shunted to the private network. By applying the shunting method of the data communication of the embodiment of the invention, the user terminal does not need to sense the private network, and the base station at the private network side establishes protocol data unit session (PDU) to the private network, forwards the uplink data and shunts the uplink data to the corresponding private network. Therefore, the automatic shunting process can be realized only by the base station at the private network side, and the intervention of maintenance personnel is not needed. In addition, the data communication shunting method provided by the invention is realized by the base station at the private network side, and is not dependent on the public network, so that the independence, flexibility and expandability of the base station construction are increased, the management burden of a public network operator is reduced, and the public network operator does not need to consider the compatibility problem between different manufacturers, the compatibility problem between R15 and R16 and the like when deploying at the edge.
It is to be understood that the teachings of the present invention need not achieve all of the above-described benefits, but rather that specific embodiments may achieve specific technical results, and that other embodiments of the present invention may achieve benefits not mentioned above.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Fig. 1 is a schematic view of an application scenario of a offloading method for data communication according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating an implementation of a offloading method for data communication according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a component of a offloading device for data communication according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Fig. 1 shows an application scenario of the offloading method for data communication according to an embodiment of the present invention. As shown in fig. 1, this is a 5GS applied in the context of edge computing, including a public network 10 and a private network 20. The public network 10 includes a public network 5G core network 102, a public network subscription database 101, a public network User Plane Function (UPF)103, and a public cloud 104. The private network 20 includes a private network-side base station 206, a private network 5G core network 202, a private network subscription database 201, a private network User Plane Function (UPF)203, a private network data network 204, and a private network routing device 205. The private network data network 204 is optionally accessed into the public cloud 104 through a private network routing device 205 and a bearer network.
In the embodiment of the present invention, the user terminal 30 does not know the existence of the private network 20, so the data communication requests initiated by the user terminal 30 are all initiated to the public network 10, but the data communication requests initiated to the public network 10 are accessed through the base station 206 on the private network side first. In the process that the base station 206 on the private network side accesses the data communication requests to the public network, the network slice to be accessed by the user terminal 30 is obtained first, and whether the private network 20 supports the network slice to be accessed by the user terminal 30 is detected according to the configuration information of the private network 5G core network 202 on the private network 20 side. If the private network 20 supports the network slice to be accessed by the user terminal 30, the base station 206 on the private network side performs special processing when executing some steps in the standard flow, and shunts the data communication request of the user to the private network 20.
For example, after the user terminal 30 initiates a data communication request, the base station 206 on the private network side may detect whether the network slice to be accessed by the data communication request is a network slice supported by the private network 20, and if so, perform the following special processing when performing some steps in the standard flow: when a session needs to be established, establishing the session with the private network 5G core network 202; when the session needs to be modified, a session modification flow is initiated to the private network 5G core network 202; when the session needs to be released, a process of releasing the session is initiated to the private network 5G core network 202; when the uplink data forwarding is needed, the uplink data is sent to a private network User Plane Function (UPF)203, and the like. If the private network 20 does not support the network slice to be accessed by the user terminal 30, the base station 206 on the private network side executes a standard procedure to access the data communication network of the user terminal 30 to the public network, establish a session with the public network 5G core network 102, perform corresponding session management, send uplink data to the public network User Plane Function (UPF)103, and the like, without performing special processing or shunting to the private network 20.
It should be noted that an application scenario of the offloading method for data communication in the foregoing embodiment of the present invention is merely an example of an applicable scenario, and does not limit the application scope of the embodiment of the present invention.
A data communication offloading method according to a first aspect of the embodiment of the present invention is further described with reference to fig. 2. As shown in fig. 2, the method is executed in a private network side base station in edge computing, and the method includes: operation 410, receiving a data communication request sent by a user terminal; operation 420, acquiring a network slice to be accessed by the data communication request; operation 430 detects whether the private network supports access to the network slice, and if so, the data communication request is shunted to the private network.
In operation 410, the data communication request sent by the user terminal is, in most cases, a communication request for accessing a certain data, such as accessing a web page, downloading a file, playing a multimedia, and so on. This data communication request is usually sent by means of a message, and includes communication protocols of different network layers, description information of the message, and specific contents included in the message. The process of processing the data communication request includes performing access authentication on the user terminal, establishing a corresponding protocol data unit session for the user terminal, performing forwarding of uplink data, and the like.
In operation 420, the Network Slice is mainly identified by Single Network Slice Assistance Information (S-NSSAI). The network slice to be accessed by the data communication request is acquired after the user terminal performs access authentication and accesses to the public network through the base station. The user terminal provides the Requested network slices (Requested nsais) when performing access authentication, and the public network determines which Allowed network slices (Allowed nsais) in the network slices Requested by the user terminal by querying the network slices (Subscribed S-nsais) Subscribed by the user terminal and then returns the Allowed nsais to the user terminal. These S-NSSAIs, which are used to identify network slices, may be cached after acquisition or carried in the message of the communication packet. In the implementation of the present invention, the above operations are all implemented by accessing the base station on the private network side to the public network, so the base station on the private network side can obtain the network slice to be accessed by the user terminal sending the data communication request through the Allowed NSSAI, the cached S-NSSAI, or the S-NSSAI carried in the message in this process.
In operation 430, it is detected whether the private network supports access to the network slice. This process may be accomplished through communication between the base station on the private network side and the access and mobility management function (AMF) on the private network side. Firstly, a base station at a private network side requires to send a request message to an access and mobile management function to return network slices supported by the private network; then, the access and mobile management function returns the network slice list supported by the private network to the base station of the private network side through a response message; then, the base station at the private network side compares the network slice supported by the private network with the network slice of the data communication request, and if the network slice of the data communication request is in the network slices supported by the private network, the private network supports the access to the network slice; then, the base station at the private network side also sends the information of the user terminal to the access and mobility management function, so that the access and mobility management function establishes the corresponding relationship between the user terminal and the slice network. After the operations are executed, the subsequent shunting operation can be smoothly completed. Furthermore, if the data communication request is based on a session, detecting whether the private network supports access to the network slice may also be determined by whether a session has been established with the private network, and if so, the private network supports access to the network slice. The shunting processing here mainly refers to establishing a session with a private network in the processes of session management and data uplink forwarding, and performing data uplink forwarding from the private network.
According to an embodiment of the present invention, wherein the method further comprises: and providing the related information of the user terminal to the private network.
When a data communication request sent by a user terminal is shunted to a private network, it is sometimes necessary to provide information related to the user terminal to a communication module related to the private network, such as an access and mobility management function (mme), a Session Management Function (SMF), and the like. A feasible implementation manner in the embodiment of the present invention is that a base station on the private network side sends the 5G-S-TMSI identifier of the user terminal and the network slice identifier that the user allows to access to the private network access and mobile management function through the NG NPN UE configuration UPDATE; after receiving the message, the access and mobile management function of the private network can establish the association relationship between the user terminal and the slice and also prepare for subsequent private network distribution.
According to an embodiment of the present invention, wherein the method further comprises: and if the base station switching is needed in the process of processing the data communication request, switching the base station in the private network.
In the embodiment of the invention, if the base station switching is required in the process of processing the data communication request, the base station switching between networks is generally not considered, but the base station switching in the private network is carried out. The switching of the base station in the private network only relates to the switching related to the protocol data unit session, so the process of switching the base station is mainly the process of recovering the protocol data unit session with the source base station at the target base station or establishing a new protocol data unit session at the target base station. When the target base station recovers the protocol data unit conversation with the source base station, the base station at the private network side can acquire the network slice from the conversation message, detect whether the private network supports the access to the network slice, if so, initiate the recovery protocol data unit conversation to the private network. The process of establishing the pdu session with the target base station is similar to the method of establishing the session with the source base station, and the following description about establishing the session with the private network can be referred to.
According to an embodiment of the present invention, wherein the method further comprises: if downward paging is needed in the process of processing the data communication request, the downward paging process of the public network session is activated first, and then the downward paging process of the private network session is activated.
Downward paging is generally classified into public network side triggered downward paging and private network side triggered downward paging. If the downward paging is triggered by the public network side, the downward paging is carried out according to a standard flow, wherein if the session establishment is involved in the downward paging process, a network slice in the message is extracted, whether the private network supports the access to the network slice is detected, if so, the session is established with the private network, and if not, the session is established with the public network. If the paging is triggered by the private network side, the user terminal information can be found in a Temporary identification code (TMSI) recorded according to a base station of the private network side, then the paging is carried out according to a tracking area List (TA List) recorded in the context of the user terminal, and a service request triggered by a subsequent paging process firstly enters a public network, and then enters the private network to activate a session after the public network activates the session.
According to an embodiment of the present invention, detecting whether the private network supports access to the network slice, and if so, offloading the data communication request to the private network includes: when a session is established, whether a private network supports access to a network slice is detected, and if so, the session is established with the private network; when modifying the conversation, detecting whether the private network supports the access to the network slice, if so, initiating a conversation modifying flow to the private network; when releasing the session, detecting whether the private network supports the access to the network slice, if so, initiating a session releasing flow to the private network; when the uplink data is forwarded, whether the private network supports the access to the network slice is detected, if so, the tunnel encapsulation is carried out by adopting a private network general packet radio service tunneling protocol GTP and the encapsulated tunnel is sent to a private network user plane function UPF.
When establishing a session, a user terminal will establish a protocol data unit session to a public network according to a standard flow, and a base station on a private network side will perform the following special processing: and further detecting whether the private network supports the network slice to be accessed by the user terminal, if so, establishing a session with the private network. In an implementation manner of the embodiment of the present invention, a base station on a private network side may obtain S-NSSAI from an NGAP message, and then obtain S-NSSAI supported by the private network through an NG NPN SETUP message to determine whether the private network supports a network slice to be accessed by a user terminal, if so, the base station initiates a protocol data unit session establishment procedure to the private network alone, and if not, a session to the private network is not established. When establishing a session with a private network, the base station on the private network side may also set a protocol data unit session flag (PDU flags) to indicate that a session has been established in the private network. It should be noted that, in this embodiment, the user terminal does not need to update the radio RESOURCE, but after the base station on the private network side successfully establishes a SESSION with the private network, sends a PDU SESSION RESOURCE SETUP RESPONSE to update the radio RESOURCE. In addition, in the embodiment of the present invention, for one pdu session, the base station on the private network side usually maintains two pieces of next hop information, that is, the next hop information of the private network and the next hop information of the public network. After the session with the private network is successfully established, the base station on the private network side preferentially uses the next hop information of the private network. If the conditions of private network session link failure, heartbeat saturation of the base station or message timeout occur, the next hop information of the public network is used.
When modifying the conversation, the user terminal modifies the PDU conversation to the public network according to the standard flow, and the base station of the private network side performs the following special treatment: and further detecting whether the private network supports the access to the network slice, and if so, initiating a session modifying flow to the private network. In the embodiment of the invention, the detection of whether the private network supports the access to the network slice is mainly realized by detecting whether the network slice carried by the session is already provided with a protocol data unit session mark in the private network. If yes, it shows that the private network supports the access to the network slice and has established the session, at this time, it can individually initiate the modification session flow of the protocol data unit session to the private network, if no, it does not need to modify the session to the private network. The following is one implementation of an embodiment of the present invention: after receiving PDU SESSION RESOURCE MODIFY REQUEST message, the base station of the private network side firstly analyzes NGAP message and extracts S-NSSAI, QFI relevant information, judges whether the network slice carried by the message needs to establish a protocol data unit SESSION to the private network, if so, further extracts network slice information (S-NSSAI) and caches, and then modifies wireless RESOURCEs, modifies network side tunnel information, modifies the association relationship between wireless RESOURCEs (RAB) and protocol data unit SESSION; if the operation is failed, the cached slice information is cleared, and if the operation is successful, a session modification request message is sent to the private network side access and mobile management function. In addition, in the embodiment of the invention, after the private network SESSION is successfully modified, the PDU Session RESPONSE is not required to be sent to update the wireless side RESOURCE, so that the user terminal is not required to sense the existence of the private network.
When releasing session, if it is a session release request initiated by a user terminal, the base station on the private network side needs to perform the following special processing: and further detecting whether the private network supports the access to the network slice, if so, initiating a session release flow to the private network. In the embodiment of the invention, whether the private network supports the access to the network slice is mainly detected by detecting whether the network slice carried by the session is already provided with a protocol data unit session mark in the private network, if so, the private network supports the access to the network slice and establishes the session, at the moment, a session release flow can be initiated to the private network, and if not, the session release flow is not initiated to the private network.
When uplink data distribution is performed, the base station on the private network side needs to perform the following special processing: and after the uplink traffic arrives, further detecting whether the private network supports the network slice used for traffic transmission, and if so, adopting a private network tunneling protocol GTP to package and send the network slice to a private network user plane function.
According to an embodiment of the present invention, before receiving a data communication request sent by a user terminal, the method further includes: adding network slices supported by the private network in the configuration information of the private network; accordingly, detecting whether the private network supports access to the network slice comprises: obtaining network slices supported by a private network from configuration information of the private network; and searching the network slice to be accessed by the data communication request in the network slices supported by the private network, wherein if the search result is not null, the detection result is yes, and if the search result is null, the detection result is no.
In the embodiment of the invention, the network slice supported by the private network is added in the configuration information of the private network, and the network slice is manually configured mainly through a network manager according to the network slice plan of the private network. It should be noted that, for the same network slice, the private network may use the network slice identifier that is the same as the network slice identifier of the public network, which may facilitate slice matching and also make it easier to determine whether the private network supports the network slice to be accessed by the data communication request. In the embodiment of the invention, the network slice supported by the private network is acquired from the configuration information of the private network by NG NPN SETUP. The general flow may be described as: the base station sends an NG NPN SETUP REQUEST message to the access and mobile management function to REQUEST a network slice list supported by the private network, and the access and mobile management function returns the network slice list supported by the private network through the NG NPN SETUP RESPONSE message.
Based on the offloading method for data communication, an embodiment of the present invention further provides an offloading device for data communication. As shown in fig. 3, the apparatus 50 includes: a receiving module 501, configured to receive a data communication request sent by a user terminal; an obtaining module 502, configured to obtain a network slice to be accessed by a data communication request; the offloading module 503 is configured to detect whether the private network supports access to the network slice, and if so, offload the data communication request to the private network.
According to an embodiment of the present invention, the apparatus 50 further comprises: and the user terminal information providing module is used for providing the related information of the user terminal to the private network.
According to an embodiment of the present invention, the apparatus 50 further comprises: and the base station switching module is used for switching the base station in the private network if the base station needs to be switched in the process of processing the data communication request.
According to an embodiment of the present invention, the apparatus 50 further comprises: and the downward paging module is used for activating a downward paging flow of a public network session and then activating a downward paging flow of a private network session if downward paging is required in the process of processing the data communication request.
According to an embodiment of the present invention, the shunting module 503 is specifically configured to: when a session is established, whether a private network supports access to a network slice is detected, and if so, the session is established with the private network; when modifying the conversation, detecting whether the private network supports the access to the network slice, if so, initiating a conversation modifying flow to the private network; when releasing the session, detecting whether the private network supports the access to the network slice, if so, initiating a session releasing flow to the private network; when the uplink data is forwarded, whether the private network supports the access to the network slice is detected, if so, the tunnel encapsulation is carried out by adopting a private network general packet radio service tunneling protocol GTP and the encapsulated tunnel is sent to a private network user plane function UPF.
According to an embodiment of the present invention, the apparatus 50 further comprises: the private network configuration module is used for adding network slices supported by the private network in the configuration information of the private network; correspondingly, the shunting module 503 comprises a network slice acquiring unit for acquiring the network slices supported by the private network from the configuration information of the private network; and the searching unit is used for searching the network slice to be accessed by the data communication request in the network slices supported by the private network, if the searching result is not empty, the detection result is yes, and if the searching result is empty, the detection result is no.
According to a third aspect of the embodiments of the present invention, a data communication offloading system includes: the system comprises a user terminal, a data communication server and a data communication server, wherein the user terminal is used for sending a data communication request, and the data communication request carries a network slice to be accessed; the private network is used for executing the shunting method of any one of the data communication; and the public network is used for receiving the registration of the user terminal, sending the relevant information of the user terminal to the private network and executing the operation of the data communication request on the public network side.
According to a fourth aspect of the embodiments of the present invention, a storage medium stores program instructions thereon, where the program instructions are used for executing the offloading method of data communication of any one of the above.
Here, it should be noted that: the above description of the embodiment of the offloading device for data communication, the description of the embodiment of the offloading system for data communication, and the description of the embodiment of the storage medium are similar to those of the foregoing method embodiments, and have similar beneficial effects to those of the foregoing method embodiments, and therefore, no further description is given. For the technical details that have not been disclosed in the above description of the embodiments of the offloading device for data communication, the description of the embodiments of the offloading system for data communication, and the description of the embodiments of the storage medium of the present invention, please refer to the description of the foregoing method embodiments of the present invention for understanding, and therefore, for brevity, will not be described again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical function division, and in actual implementation, there may be other division manners, such as: multiple modules or components may be combined, or may be integrated into another device or apparatus, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or modules may be electrical, mechanical or other.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may be separately used as one unit, or two or more modules may be integrated into one unit; the integrated unit may be implemented in a form of hardware, or may be implemented in a form of hardware plus a software function.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media capable of storing program codes, such as a removable storage medium, a Read Only Memory (ROM), a magnetic disk, and an optical disk.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods of the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage medium, a ROM, a magnetic disk, an optical disk, or the like, which can store the program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A data communication shunting method is applied to the scene of edge calculation, and is characterized in that the method is operated in a base station at a private network side, and the method comprises the following steps:
adding network slices supported by the private network in the configuration information of the private network, wherein for the same network slice, the private network uses a network slice identifier which is the same as a network slice identifier of a public network;
receiving a data communication request sent by a user terminal;
acquiring a network slice to be accessed by the data communication request, wherein the network slice is acquired after the user terminal performs access authentication and accesses a public network through a base station;
obtaining network slices supported by the private network from the configuration information of the private network;
and searching the network slice to be accessed by the data communication request in the network slices supported by the private network, and if the searching result is not null, shunting the data communication request to the private network.
2. The method of claim 1, further comprising:
and providing the related information of the user terminal to the private network.
3. The method of claim 1, further comprising:
and if the base station switching is required in the process of processing the data communication request, switching the base station in the private network.
4. The method of claim 1, further comprising:
if downward paging is needed in the process of processing the data communication request, a downward paging flow of a public network session is activated first, and then a downward paging flow of a private network session is activated.
5. The method of claim 1, wherein detecting whether the private network supports access to the network slice, and if so, offloading the data communication request to the private network comprises:
when a session is established, detecting whether the private network supports the access to the network slice, if so, establishing the session with the private network;
when modifying the session, detecting whether the private network supports the access to the network slice, if so, initiating a session modifying flow to the private network;
when releasing the session, detecting whether the private network supports the access to the network slice, if so, initiating a session releasing flow to the private network;
and when the uplink data is forwarded, detecting whether the private network supports the access to the network slice, if so, adopting a private network general packet radio service tunneling protocol (GTP) to perform tunnel encapsulation and sending the encapsulated tunnel encapsulation to a private network User Plane Function (UPF).
6. A shunting device for data communication is applied to the scene of edge calculation, and is characterized in that the device comprises:
the private network configuration module is used for adding network slices supported by a private network in configuration information of the private network, and for the same network slice, the private network uses a network slice identifier which is the same as a network slice identifier of a public network;
the receiving module is used for receiving a data communication request sent by a user terminal;
an obtaining module, configured to obtain a network slice to be accessed by the data communication request, where the network slice is obtained after the user terminal performs access authentication and accesses a public network through a base station;
the distribution module comprises a network slice acquisition unit, a distribution module and a distribution module, wherein the network slice acquisition unit is used for acquiring network slices supported by a private network from configuration information of the private network; and the searching unit is used for searching the network slice to be accessed by the data communication request in the network slices supported by the private network, and if the searching result is not empty, the data communication request is shunted to the private network.
7. The apparatus of claim 6, further comprising:
and the user terminal information providing module is used for providing the related information of the user terminal to the private network.
8. A data communication shunting system is applied to the scene of edge computing, and is characterized by comprising:
the system comprises a user terminal and a base station, wherein the user terminal is used for sending a data communication request, the data communication request carries a network slice to be accessed, and the network slice is acquired after the user terminal is subjected to access authentication and is accessed to a public network through the base station;
a private network for executing the offloading method of data communication of any one of claims 1 to 5;
and the public network is used for receiving the registration of the user terminal, sending the relevant information of the user terminal to the private network and executing the operation which needs to be carried out on the data communication request at the public network side.
9. A storage medium having stored thereon program instructions for performing, when executed, the offloading method of data communication according to any of claims 1-5.
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| CN113973340A (en) * | 2020-07-24 | 2022-01-25 | 中国电信股份有限公司 | Method and system for realizing regional distribution |
| WO2022151274A1 (en) * | 2021-01-14 | 2022-07-21 | Oppo广东移动通信有限公司 | Paging method and network node |
| CN113068223B (en) * | 2021-02-24 | 2022-05-17 | 深圳市日海飞信信息系统技术有限公司 | Local distribution method, device and equipment based on slice information and storage medium |
| CN114143372B (en) * | 2021-12-06 | 2023-07-25 | 重庆邮电大学 | End network control method and system based on converged network shunt |
| WO2023133689A1 (en) * | 2022-01-11 | 2023-07-20 | Oppo广东移动通信有限公司 | Network slice determination method and apparatus, and storage medium |
| CN114727291B (en) * | 2022-03-31 | 2023-09-29 | 中国电信股份有限公司 | Local shunting system, method, device, network equipment and storage medium |
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