Local area network generation method, network element, network side and communication system and equipment

Abstract

The present disclosure proposes a local area network generation method, network element, network side and communication system and equipment, which relates to the field of wireless communication technology. A local area network generation method disclosed in the present disclosure includes: the user plane function UPF network element obtains the user plane forwarding rules and user identification from the session management function SMF network element; configures the frame routing Framed Routing function according to the user identification, and generates the Framed Routing forwarding table; configures the forwarding rules of the first type of terminal in the LAN based on the address in the Framed Routing IP address segment according to the Framed Routing IP address segment corresponding to the user identification required by the network side, so that the first type of terminals can interact with each other in the LAN through the UPF network element, wherein the first type of terminal is a terminal mounted on the customer premise equipment CPE; the UPF network element sends the first configuration information to the CPE. Through such a method, the address of the terminal mounted under the CPE of the 5G LAN is automatically configured, and it matches the deployment of the core network, thereby improving the configuration efficiency of the 5G LAN service.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless communication technology, and in particular to a local area network generation method, a network element, a network side, and a communication system and equipment. Background Art

[0002] 3GPP defined the 5G LAN (Local Area Network) feature in R16. A group of terminals that subscribe to the same slice and DNN (Data Network Name) is designated as a 5G VN (Virtual Network) group. The devices in the DN (Data Network) connected to the N6 interface within the group can communicate with each other in the following three ways: UPF (User Plane Function) local exchange, exchange through the N19 interface between UPFs, and exchange through the N6 interface.

[0003] The standard 5G LAN function implementation has requirements for UDM (Unified Data Management), AMF (Authentication Management Function), SMF (Session Management Function), and UPF in the 5G core network elements. To realize 5G LAN services, multiple network elements involved in the public network need to be upgraded and renovated. Summary of the invention

[0004] One object of the present disclosure is to improve the configuration efficiency of 5G LAN.

[0005] According to one aspect of some embodiments of the present disclosure, a local area network generation method is proposed, including: a UPF network element obtains a user plane forwarding rule and a user identifier from an SMF network element; the UPF network element configures a frame routing (Framed Routing) function according to the user identifier to generate a Framed Routing forwarding table; according to the Framed Routing IP address segment corresponding to the user identifier required by the network side, a forwarding rule based on the address in the Framed Routing IP address segment is configured for the first type of terminal in the LAN, so that the first type of terminals can interact with each other through the UPF network element within the LAN, wherein the first type of terminals are terminals mounted on CPE (Customer Premise Equipment); the UPF network element sends first configuration information to the CPE.

[0006] In some embodiments, the LAN generation method also includes: the UPF network element configures the forwarding rules based on the addresses in the 5G LAN IP address segment between the second type of terminals in the LAN according to the 5G LAN IP address segment corresponding to the user identifier required by the network side, so that the second type of terminals can exchange information within the LAN through the UPF network element; the UPF network element sends second configuration information to the second type of terminal, and the second configuration information includes the address assigned to the corresponding terminal.

[0007] In some embodiments, according to the Framed Routing IP address segment corresponding to the user identifier required by the network side, configuring the forwarding rules for the first type of terminals in the LAN based on the addresses in the Framed Routing IP address segment includes: according to the 5G LAN IP address segment and the Framed Routing IP address segment corresponding to the user identifier required by the network side, configuring the forwarding rules for the first type of terminals in the LAN based on the addresses in the Framed Routing IP address segment, so that the first type of terminals can interact with each other and the second type of terminals with the first type of terminals through the UPF network element within the LAN.

[0008] In some embodiments, the first configuration information includes an address assigned to the CPE and an address assigned to a first type of terminal mounted on the CPE.

[0009] In some embodiments, the UPF network element sending the first configuration information to the CPE includes: after completing the establishment of a PDU (Protocol Data Unit) session, when the CPE accesses the UPF network element through the PDU session, the UPF network element sends the first configuration information to the CPE.

[0010] In some embodiments, the UPF network element configures the Framed Routing function according to the user identifier and generates a Framed Routing forwarding table, including: the UPF triggers the AC (Access Point Controller) module in the UPF to configure the Framed Routing information according to the user identifier, and the AC module generates a Framed Routing forwarding table; according to the Framed Routing IP address segment corresponding to the user identifier required by the network side, the forwarding rules based on the addresses in the Framed Routing IP address segment between the first type of terminals in the LAN are configured, including: the AC module configures the forwarding rules based on the addresses in the Framed Routing IP address segment between the first type of terminals in the LAN according to the Framed Routing IP address segment corresponding to the user identifier required by the network side; the UPF network element sends the first configuration information to the CPE, including: after completing the establishment of the PDU session, the AC module sends the first configuration information to the CPE through its own communication address.

[0011] In some embodiments, the LAN generation method also includes: the UPF network element determines the virtual network VN group to which the first type of terminal belongs based on the DNN or slice to which the terminal belongs, wherein the first type of terminals in the same DNN or slice are in the same VN group, the terminals in the same VN group communicate through UPF, and the terminals in different VN groups are isolated from each other.

[0012] In some embodiments, the LAN generation method also includes: the UPF network element determines the virtual network VN group to which the second type of terminal belongs based on the DNN or slice to which the terminal belongs, wherein the first type of terminal and the second type of terminal in the same DNN or slice are in the same VN group, the terminals in the same VN group communicate through UPF, and the terminals in different VN groups are isolated from each other.

[0013] In some embodiments, the LAN generation method also includes: when the user terminal initiates a service request, the AMF network element selects the SMF network element based on the user information and sends the user information to the SMF network element; the SMF network element queries the user's contract information based on the user information; the SMF network element sends the user plane forwarding rules and user identifier to the UPF network element.

[0014] In some embodiments, the AMF network element selects the SMF network element according to the user information, including: the AMF network element determines to select the SMF network element that has a connection relationship with the corresponding UPF network element according to the user information; the SMF network element queries the user's contract information according to the user information, including: the SMF network element initiates a query request to the UDM network element or the AAA network element to obtain the Framed Routing information corresponding to the user.

[0015] In some embodiments, the LAN generation method further includes: the CPE configures its own address and the address of the mounted terminal according to the first configuration information from the UPF.

[0016] According to one aspect of some embodiments of the present disclosure, a UPF network element is proposed, including: an instruction acquisition unit, configured to obtain user-plane forwarding rules and user identifiers from an SMF network element; an AC module, configured to: configure a Framed Routing function according to the user identifier and generate a Framed Routing forwarding table; configure forwarding rules based on addresses in the Framed Routing IP address segment between first-class terminals in a LAN according to the Framed Routing IP address segment corresponding to the user identifier required by the network side, so that the first-class terminals can interact with each other in the LAN through the UPF network element, wherein the first-class terminals are terminals mounted on the customer premises equipment CPE; and send first configuration information to the CPE.

[0017] In some embodiments, the user plane function network element also includes: an address configuration unit, configured to configure the forwarding rules based on the addresses in the 5G LAN IP address segment between the second type of terminals in the LAN according to the 5G LAN IP address segment corresponding to the user identifier required by the network side, so that the second type of terminals can exchange information within the LAN through the UPF network element; and a sending unit, configured to send second configuration information to the second type of terminal, the second configuration information including the address assigned to the corresponding terminal.

[0018] According to one aspect of some embodiments of the present disclosure, a network side system is proposed, including: a UPF network element, configured to execute any one of the methods executed by the UPF above; an AMF network element, configured to select an SMF network element according to user information when a user terminal initiates a service request, and send the user information to the SMF network element; and an SMF network element, configured to query the user's contract information according to the user information, and send a user plane forwarding rule and a user identifier to the UPF network element.

[0019] According to one aspect of some embodiments of the present disclosure, a communication system is proposed, comprising: the network side system mentioned above; and a CPE, configured to configure its own address and the address of a mounted terminal according to first configuration information from a UPF.

[0020] According to one aspect of some embodiments of the present disclosure, a network device is provided, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute any one of the above-mentioned local area network generation methods based on instructions stored in the memory.

[0021] According to one aspect of some embodiments of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored, and when the instructions are executed by a processor, the steps of any one of the above methods for generating a local area network are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0023] Figure 1 The present invention provides a flowchart of some embodiments of the local area network generation method of the present invention.

[0024] Figure 2 Flow charts of other embodiments of the local area network generation method disclosed in the present invention.

[0025] Figure 3 The following are flow charts of some further embodiments of the local area network generation method disclosed in the present invention.

[0026] Figure 4 Schematic diagram of some embodiments of the UPF network element disclosed in the present invention.

[0027] Figure 5 Schematic diagram of some embodiments of the network side system of the present disclosure.

[0028] Figure 6 Schematic diagram of some embodiments of the communication system disclosed herein.

[0029] Figure 7 Schematic diagram of some embodiments of the network device disclosed herein.

[0030] Figure 8 Schematic diagrams of other embodiments of the network device disclosed herein. DETAILED DESCRIPTION

[0031] The technical solution of the present disclosure is further described in detail below through the accompanying drawings and embodiments.

[0032] There are a large number of terminals in the current customer networks that need to access the network through WiFi (Wireless Fidelity), such as terminals that currently do not have the ability to directly access the 5G network. CPE devices that have the ability to receive mobile signals and mount other terminals are widely used in network deployment. In related technologies, when the network side actively sends data to the terminal attached to the CPE, it is necessary to use the Framed routing function defined in the 3GPP standard. The Framedrouting function defined in 3GPP needs to be obtained by the SMF from the AAA (Authentication, Authorization, Accounting) server or UDM, and then the data forwarding policy is sent to the UPF.

[0033] The flowcharts of some embodiments of the local area network generation method disclosed in the present invention are as follows Figure 1 shown.

[0034] In step 140, the UPF network element obtains the user plane forwarding rules and user identifier from the SMF network element.

[0035] In step 150, the UPF network element configures the frame routing function according to the user identifier and generates a Framed Routing forwarding table.

[0036] In step 151, the UPF network element configures the address of the first type of terminal in the LAN according to the Framed Routing IP address segment corresponding to the user identifier required by the network side. In addition, the UPF network element generates forwarding rules between Framed Routing IP addresses based on the Framed Routing IP addresses. The first type of terminal here is the terminal mounted on the CPE, such as laptops, desktops, AGV (Automated Guided Vehicle) equipment, AR (Augmented Reality) / VR (Virtual Reality) equipment, etc. The first type of terminals in the same LAN exchange information within the LAN through the UPF network element, without going through the DN (Data Network), and can be forwarded through the UPF network element.

[0037] In some embodiments, the UPF network element can also determine the VN group to which the first-class terminal belongs based on the DNN or slice to which the terminal belongs. A UPF network element can simultaneously serve as a forwarding network element for multiple VN groups. The first-class terminals in the same VN group communicate through UPF, and the communication between terminals in different VN groups needs to be forwarded through DN. Through this method, it is possible to support the same UPF network element to provide message forwarding services for multiple LANs, realize the isolation of terminals between different VN groups, and improve information security.

[0038] In step 160, the UPF network element sends first configuration information to the CPE. In some embodiments, the first configuration information includes an address assigned to the CPE and an address assigned to a first type of terminal mounted on the CPE.

[0039] In some embodiments, after the terminal completes the establishment of the PDU session, when the CPE accesses the UPF network element through the PDU session, the UPF network element sends the first configuration information to the CPE.

[0040] Through this method, the UPF network element can generate forwarding rules based on the VN group configuration of the Framed routing IP address segment, and send the IP address configured by the core network for Framed Routing to each terminal mounted under the CPE, so as to realize the automatic address configuration of the terminal under the CPE mounted on the 5G LAN, and match it with the deployment of the core network, overcoming the problem that the CPE in related technologies is difficult to directly obtain the IP configuration of the core network, without manual configuration and address conversion operations, and improving the deployment efficiency and terminal compatibility of the 5G LAN. In addition, this method does not require configuration modification of the public network SMF and UDM, which is conducive to promotion and application.

[0041] Flow charts of other embodiments of the local area network generation method disclosed in the present invention are as follows Figure 2 shown.

[0042] In step 240, the UPF network element obtains the user plane forwarding rules and user identifier from the SMF network element.

[0043] In step 252, the UPF network element configures the forwarding rules between the second-class terminals in the LAN based on the addresses in the 5G LAN IP address segment according to the 5G LAN IP address segment corresponding to the user identifier required by the network side, so that after the configuration is completed, the second-class terminals can exchange information within the LAN through the UPF network element. The interaction between the second-class terminals in the same LAN does not need to go through the DN and can be forwarded through the UPF network element. The second-class terminal is a terminal that supports 5G communication functions and can interact directly with the UPF network element without going through the CPE.

[0044] In step 261, the UPF network element sends second configuration information to the second type of terminal, the second configuration information including the address allocated to the corresponding terminal. The second type of terminal will configure its own communication address according to the second configuration information from the UPF network element.

[0045] Through this method, the UPF network element does not need to rely on the 5G LAN forwarding rules issued by the SMF. The UPF configures the correspondence between the DNN / slice and the IP address segment assigned to the UE, and generates corresponding forwarding rules based on the IP address segment assigned to the UE, which improves the deployment efficiency of the 5G LAN and the convenience of configuration management.

[0046] In some embodiments, the UPF network element can also determine the VN group to which the second type of terminal belongs based on the DNN or slice to which the terminal belongs. A UPF network element can simultaneously serve as a forwarding network element for multiple VN groups. Terminals in the same VN group communicate through UPF, and communications between terminals in different VN groups need to be forwarded through the switching equipment of the DN. In some embodiments, terminals in the same VN group include first type terminals and second type terminals.

[0047] Through this method, the same UPF network element can provide message forwarding services for multiple LANs, achieve isolation of terminals between different VN groups, and improve information security.

[0048] In some embodiments, in the above step 151, the UPF network element can also generate forwarding rules between addresses according to the 5GLAN IP address and the FramedRouting IP address. The second type of terminal and the first type of terminal in the same LAN can exchange information within the LAN through the UPF network element, without going through the DN, and can be forwarded through the UPF network element.

[0049] Through this method, the UPF network element can configure the VN group to generate forwarding rules in combination with the IP address segment assigned to the UE and the Framed routing IP address segment, and send the IP address configured by the core network for Framed Routing to each terminal mounted under the CPE, and combine 5G LAN with Framed Routing to achieve automatic address configuration of 5G LAN terminals and terminals mounted under the CPE of 5G LAN, and match the deployment of the core network, thereby improving the flexibility of use and configuration. In addition, this method does not require configuration modification of the public network SMF and UDM, which is conducive to promotion and application.

[0050] In some embodiments, an AC module may be configured separately in a UPF network element to perform functions related to Framed Routing. Figure 1In the illustrated embodiment, steps 150 and 151 are implemented by the AC module in the UPF network element.

[0051] In some embodiments, the UPF triggers the AC module in the UPF to configure Framed Routing information according to the user identifier, and the AC module generates a Framed Routing forwarding table; the AC module configures the forwarding rules based on the addresses in the Framed Routing IP address segment between the first type of terminals in the LAN according to the IP address segment corresponding to the user identifier required by the network side; after completing the establishment of the PDU session, the AC module sends the first configuration information to the CPE through its own communication address.

[0052] Through this method, a relatively independent AC module can be configured in UPF to perform related functions of Framed Routing, which is conducive to the harmonious implementation of other functions of UPF and avoids mutual interference; it reduces the occupation of existing resources in UPF and ensures operational efficiency. In addition, the AC module has its own communication address, which also facilitates direct interaction between CPE and AC module. The subsequent interaction process does not need to go through other parts of UPF, which reduces the network pressure of 5G LAN, reduces interference with other services, and improves network reliability.

[0053] Flowcharts of some other embodiments of the local area network generation method disclosed in the present invention are as follows: Figure 3 shown.

[0054] In step 310, the AMF network element selects the SMF network element according to the user information and sends the user information to the SMF network element. In some embodiments, the AMF can trigger the operation of selecting the SMF network element according to the user information when the user terminal initiates a service request, such as an application service request or a traffic request. In some embodiments, the user information may include the DNN signed by the user, the slice used, the user's location, etc.

[0055] In step 320, the SMF network element queries the user's contract information based on the user information. In some embodiments, the user information can be provided to the SMF by the AMF. In some embodiments, the SMF network element can initiate a query request to the UDM network element or the AAA server based on the user information to obtain the Framed Routing information corresponding to the user.

[0056] In step 330, the SMF network element sends the user plane forwarding rules and user identification to the UPF network element. In some embodiments, the SMF can determine that the UPF network element proposed in the present disclosure needs to be adopted based on the user's contract information, the user's location, etc., and then execute subsequent steps.

[0057] In some embodiments, when determining to trigger the use of the Framed Routing function, the SMF selects a UPF that is compatible with the function of the present disclosure to carry the user session. The SMF carries the Framed Routing information in the information sent to the UPF.

[0058] In step 350, the UPF network element configures the framed routing function according to the user identifier and generates a framed routing forwarding table.

[0059] In step 351, the UPF network element configures forwarding rules based on the addresses in the IP address segment between the second-class terminals in the LAN according to the IP address segment of the 5GLAN terminal corresponding to the user identifier required by the network side, so that the second-class terminals can exchange information within the LAN through the UPF network element.

[0060] In step 352, according to the 5G LAN IP address and Framed Routing IP address segment corresponding to the user identifier required by the network side, the forwarding rules based on the addresses in the Framed Routing IP address segment between the first type of terminals in the LAN are configured so that the first type of terminals can exchange information within the LAN through the UPF network element.

[0061] In step 360, the UPF network element sends the second configuration information to the second type of terminal and sends the first configuration information to the CPE.

[0062] In step 370, after receiving the second configuration information, the second type of terminal sets the IP address therein as its own communication address in the LAN; after receiving the first configuration information, the CPE configures its own address and the address of the mounted terminal.

[0063] This method can overcome the problem that the 5G LAN and Framed routing functions in related technologies are independent of each other and unrelated, and the Framed routing function can be simultaneously implemented in the 5G LAN configuration to ensure that terminals that do not have 5G communication capabilities can also synchronously implement terminal interaction based on 5G LAN, thereby improving terminal compatibility, reducing network signaling, and improving deployment efficiency.

[0064] Schematic diagrams of some embodiments of the user plane function network element disclosed in the present invention are as follows Figure 4 shown.

[0065] The instruction acquisition unit 411 can obtain the user plane forwarding rules and user identification from the SMF network element.

[0066] The AC module 414 can configure the Framed Routing information after the UPF receives the Framed Routing information from the SMF, and the AC module generates a Framed Routing forwarding table; the AC module configures the forwarding rules based on the addresses in the Framed Routing IP address segment between the first type of terminals in the LAN according to the Framed Routing IP address segment of the user identifier required by the network side; after completing the establishment of the PDU session, the AC module sends the first configuration information to the CPE through its own communication address.

[0067] Such a UPF network element can configure the VN group to generate forwarding rules based on the Framed routing IP address segment, and send the IP address configured by the core network for Framed Routing to each terminal mounted on the CPE, thereby realizing automatic address configuration of the terminal under the CPE mounted on the 5G LAN, and matching the deployment of the core network. It overcomes the problem in related technologies that it is difficult for CPE to directly obtain the IP configuration of the core network, and there is no need for manual configuration and address conversion operations, thereby improving the deployment efficiency and terminal compatibility of the 5G LAN.

[0068] In addition, the UPF network element has a relatively independent AC module to perform Framed Routing related functions, which is conducive to the harmonious implementation of other UPF functions and avoids mutual interference; it reduces the occupation of existing resources in UPF and ensures operational efficiency. The AC module has its own communication address, which also facilitates direct interaction between CPE and AC module. The subsequent interaction process does not need to go through other parts of UPF, reducing the network pressure of 5G LAN, reducing interference with other services, and improving network reliability.

[0069] In some embodiments, Figure 4 As shown, the UPF network element may also include an address configuration unit 412 and a sending unit 413. The address configuration unit 412 can configure the forwarding rules between the second-class terminals in the LAN based on the addresses in the 5G LAN IP address segment according to the 5G LAN IP address segment corresponding to the user identifier required by the network side, so that after the configuration is completed, the second-class terminals can exchange information within the LAN through the UPF network element, and the interaction between the second-class terminals in the same LAN does not need to go through the DN, and can be forwarded through the UPF network element.

[0070] The sending unit 413 can send the second configuration information to the second type of terminal, wherein the second configuration information includes the address allocated to the corresponding terminal. The second type of terminal will configure its own communication address according to the second configuration information from the UPF network element.

[0071] Such a UPF network element does not need to rely on the 5G LAN forwarding rules issued by SMF. UPF configures the correspondence between DNN / slice and the IP address segment assigned to the UE, and generates corresponding forwarding rules based on the IP address segment assigned to the UE, thereby improving the deployment efficiency of 5G LAN.

[0072] In some embodiments, the AC module 414 can also generate forwarding rules between addresses based on the 5G LAN IP address and the Framed Routing IP address, so that the second type of terminal and the first type of terminal in the same LAN can exchange information within the LAN through the UPF network element without going through the DN, and can be forwarded through the UPF network element.

[0073] Such a UPF network element can configure the VN group to generate forwarding rules in combination with the IP address segment assigned to the UE and the Framed routing IP address segment, thereby improving the deployment efficiency and terminal compatibility of the 5G LAN.

[0074] Schematic diagrams of some embodiments of the network side system of the present disclosure are as follows Figure 5 shown.

[0075] The AMF network element 53 can select the SMF network element according to the user information and send the user information to the SMF network element. In some embodiments, the AMF can trigger the operation of selecting the SMF network element according to the user information when the user terminal initiates a service request, such as when initiating an application service request or a traffic request. In some embodiments, the user information may include the DNN signed by the user, the slice used, the user's location, etc.

[0076] The SMF network element 52 can query the user's contract information based on the user information. In some embodiments, the user information can be provided to the SMF by the AMF. In some embodiments, the SMF network element can initiate a query request to the UDM network element or the AAA network element based on the user information to obtain the Framed Routing information corresponding to the user.

[0077] In some embodiments, the SMF network element 52 can also send user plane forwarding rules and user identification to the UPF network element. In some embodiments, the SMF can determine that the UPF needs to be customized based on the user's contract information, the user's location, etc., and then execute subsequent steps.

[0078] The UPF network element 51 may be any one of the UPF network elements mentioned in the present disclosure, and may execute any one of the LAN generation methods mentioned above that is executed by the UPF network element.

[0079] Such a network-side system can send the IP address configured by the core network for 5G LAN to each terminal, realize the automatic configuration of the LAN address of the 5GLAN terminal, and match it with the deployment of the core network, without the need for manual configuration operations, thereby improving the deployment efficiency of the 5G LAN; in addition, through the configuration of the Framed Routing function, it can overcome the problem that the 5GLAN and Framed routing functions in related technologies are independent and unrelated to each other, and the Framed routing function can be implemented in the 5GLAN configuration at the same time, ensuring that terminals that do not have 5G communication capabilities can also synchronously realize terminal interaction within the 5G LAN, thereby improving the compatibility with terminals, reducing network signaling, and improving deployment efficiency.

[0080] Schematic diagrams of some embodiments of the communication system of the present disclosure are as follows Figure 6 shown.

[0081] The network side system 60 can be any one of the above-mentioned ones. The UPF in the network side system 60 communicates with the user terminal through the base station. The user terminal can be one or more second-class terminals 621 that support direct interaction with the 5G base station. In addition, the UPF can also interact with the CPE611 through the base station, and the CPE611 is mounted with one or more first-class terminals 6111.

[0082] After receiving the second configuration information from the network side system 60, the second type of terminal 621 sets the IP address therein as its own communication address within the LAN; after receiving the first configuration information from the network side system 60, CPE611 allocates the address therein to itself and the terminal mounted on itself, and configures its own address and the address of the mounted terminal.

[0083] Such a communication system can realize automatic configuration of LAN addresses of 5G LAN terminals and match them with the deployment of the core network, thus improving the deployment efficiency of 5G LAN. It can also realize the Framed routing function in the 5G LAN configuration, ensuring that terminals without 5G communication capabilities can also synchronously realize terminal interaction within the 5G LAN, thus improving terminal compatibility, reducing network signaling, and improving deployment efficiency.

[0084] In some embodiments, the same UPF of the network side system 60 can support being a forwarding network element of one or more VN groups, such as Figure 6LAN 63 and LAN 64 are shown in the figure, wherein LAN 64 may include one or more second-class terminals 622, and one or more CPE 612, each CPE is mounted with one or more first-class terminals 6121. The UPF network element in the network side system 60 can also determine the VN group to which the terminal belongs according to the DNN or slice to which the terminal belongs, allowing terminals in the same VN group to communicate through the UPF, and not allowing terminals in different VN groups to communicate and need to be forwarded through the switching device of the DN.

[0085] Such a communication system can support the same UPF network element to provide message forwarding services for multiple LANs, achieve isolation of terminals between different VN groups, and improve information security.

[0086] In some embodiments, the communication system disclosed in the present invention can be applied to the establishment of a local area network for enterprise customers. For example, there are two isolated network environments (office network and production network) in the enterprise network. Different DNNs or slices are signed for the terminals or CPEs in the two network environments, and different IP address segments are assigned to different DNNs or slices. At the same time, Framed routing is configured for the corresponding CPE through the AC module of UPF. While the UPF takes effect locally, the configuration information is sent to the CPE using the PDU session established by the CPE. UPF configures the corresponding VN group according to the IP address obtained by the 5G terminal and the Framed routing address segment corresponding to the CPE. The terminals under the same DNN / slice are in the same VN group. The terminals in the same group can communicate with each other, and the terminals in different VN groups are isolated from each other.

[0087] Such a communication system can meet the needs of enterprise-level customers for establishing multiple LANs, enabling various terminals to support 5G LAN-based interaction capabilities, which is conducive to promotion and application; it can achieve isolation of terminals between different VN groups and improve information security; it can improve the deployment efficiency of 5G LAN and the convenience of configuration management.

[0088] A structural diagram of an embodiment of the network device disclosed in the present invention is shown in FIG. Figure 7 As shown. The network device may be a UPF network element, a CPE, etc., including a memory 701 and a processor 702. Among them: the memory 701 may be a disk, a flash memory, or any other non-volatile storage medium. The memory is used to store instructions executed by the corresponding network element in the corresponding embodiment of the local area network generation method above. The processor 702 is coupled to the memory 701 and can be implemented as one or more integrated circuits, such as a microprocessor or a microcontroller. The processor 702 is used to execute instructions stored in the memory, which can improve the configuration efficiency of the 5G LAN.

[0089] In one embodiment, it is also possible to Figure 8As shown, the network device 800 includes a memory 801 and a processor 802. The processor 802 is coupled to the memory 801 via a BUS bus 803. The network device 800 can also be connected to an external storage device 805 via a storage interface 804 to call external data, and can also be connected to a network or another computer system (not shown) via a network interface 806. No further detailed description will be given here.

[0090] In this embodiment, the configuration efficiency of the 5G LAN can be improved by storing data instructions in a memory and then processing the instructions through a processor.

[0091] In another embodiment, a computer-readable storage medium stores computer program instructions, which, when executed by a processor, implement the steps of the method in the corresponding embodiment of the local area network generation method. It should be understood by those skilled in the art that the embodiments of the present disclosure can be provided as methods, devices, or computer program products. Therefore, the present disclosure can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure can take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0092] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowchart and / or block diagram and the combination of processes and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0093] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0094] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0095] So far, the present disclosure has been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0096] The method and apparatus of the present disclosure may be implemented in many ways. For example, the method and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above, unless otherwise specifically stated. In addition, in some embodiments, the present disclosure may also be implemented as a program recorded in a recording medium, which includes machine-readable instructions for implementing the method according to the present disclosure. Therefore, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present disclosure, which should be included in the scope of the technical solution for protection of the present disclosure.

Claims

1. A method for generating a local area network, include: The user plane function UPF network element obtains the user plane forwarding rule and user identifier from the session management function SMF network element; Configuring a frame routing Framed Routing function according to the user identifier to generate a Framed Routing forwarding table includes: the UPF triggering an access point control AC module in the UPF to configure Framed Routing information according to the user identifier, and the AC module generating a Framed Routing forwarding table; According to the Framed Routing IP address segment corresponding to the user identifier required by the network side, configuring the forwarding rule of the first type of terminal in the LAN based on the address in the Framed Routing IP address segment, including: the AC module configures the forwarding rule between the first type of terminals in the LAN based on the address in the FramedRouting IP address segment according to the 5G LAN IP address segment corresponding to the user identifier required by the network side, so that the first type of terminals can exchange information within the LAN through the UPF network element, wherein the first type of terminal is a terminal mounted on the customer premise equipment CPE; The UPF network element sends first configuration information to the CPE.

2. The method according to claim 1, further comprising: include: The UPF network element configures the forwarding rules between the second type of terminals in the LAN based on the addresses in the 5G LAN IP address segment according to the fifth generation mobile communication technology 5G local area network LAN Internet interconnection protocol IP address segment corresponding to the user identifier required by the network side, so that the second type of terminals can perform information interaction within the LAN through the UPF network element; The UPF network element sends second configuration information to the second type of terminal, and the second configuration information includes an address allocated to the corresponding terminal.

3. The method according to claim 2, in, The configuring, according to the Framed Routing IP address segment corresponding to the user identifier required by the network side, a forwarding rule based on the address in the Framed Routing IP address segment for the first type of terminal in the LAN comprises: According to the 5G LAN IP address segment and Framed Routing IP address segment corresponding to the user identifier required by the network side, configure the forwarding rules of the first type of terminals in the LAN based on the addresses in the Framed Routing IP address segment, so that the first type of terminals can interact with each other and the second type of terminals with the first type of terminals through the UPF network element within the LAN.

4. The method according to claim 1, in, The first configuration information includes an address assigned to the CPE and an address assigned to the first type of terminal mounted on the CPE.

5. The method according to claim 1, in, The UPF network element sending the first configuration information to the CPE includes: After completing the establishment of the protocol data unit PDU session, when the CPE accesses the UPF network element through the PDU session, the UPF network element sends the first configuration information to the CPE.

6. The method according to claim 1, in, The UPF network element sending the first configuration information to the CPE includes: after completing the PDU session establishment, the AC module sends the first configuration information to the CPE through its own communication address.

7. The method according to claim 1, further comprising: include: The UPF network element determines the virtual network VN group to which the first type of terminal belongs based on the DNN or slice to which the terminal belongs, wherein the first type of terminals in the same DNN or slice are in the same VN group, terminals in the same VN group communicate through the UPF, and terminals in different VN groups are isolated from each other.

8. The method according to claim 2, further comprising: include: The UPF network element determines the virtual network VN group to which the second type of terminal belongs based on the DNN or slice to which the terminal belongs, wherein the first type of terminal and the second type of terminal in the same DNN or slice are in the same VN group, the terminals in the same VN group communicate through the UPF, and the terminals in different VN groups are isolated from each other.

9. The method according to any one of claims 1 to 8, further comprising: include: When the user terminal initiates a service request, the authentication management function AMF network element selects the SMF network element according to the user information and sends the user information to the SMF network element; The SMF network element queries the user's contract information according to the user information; The SMF network element sends the user plane forwarding rule and the user identifier to the UPF network element.

10. The method according to claim 9, in, The AMF network element selecting the SMF network element according to the user information includes: the AMF network element determines and selects the SMF network element having a connection relationship with the UPF network element according to the user information; The SMF network element queries the user's contract information according to the user information, including: the SMF network element initiates a query request to the UDM network element or the AAA network element to obtain the Framed Routing information corresponding to the user.

11. The method according to claim 1, further comprising: include: The CPE configures its own address and the address of the mounted terminal according to the first configuration information from the UPF.

12. A user plane functional network element, include: An instruction acquisition unit is configured to acquire a user plane forwarding rule and a user identifier from a session management function SMF network element; The access point controls the AC module and is configured as: Configure the Framed Routing function according to the user identifier and generate a Framed Routing forwarding table; According to the Framed Routing IP address segment corresponding to the user identifier required by the network side, configure the forwarding rules of the first type of terminals in the LAN based on the addresses in the Framed Routing IP address segment, so that the first type of terminals can interact with each other through the UPF network element within the LAN, wherein the first type of terminals are terminals mounted on the customer premises equipment CPE.

13. The network element according to claim 12, further comprising: include: The address configuration unit is configured to configure, according to the fifth generation mobile communication technology 5G local area network LAN Internet interconnection protocol IP address segment corresponding to the user identifier required by the network side, a forwarding rule between the second type of terminals in the LAN based on the addresses in the 5G LAN IP address segment, so that the second type of terminals can perform information interaction within the LAN through the UPF network element; and The sending unit is configured to send second configuration information to the second-category terminal, where the second configuration information includes an address allocated to the corresponding terminal.

14. A network side system, include: A user plane function UPF network element, configured to execute the method according to any one of claims 1 to 8; The authentication management function AMF network element is configured to select a session management function SMF network element according to user information when a user terminal initiates a service request, and send the user information to the SMF network element; and The SMF network element is configured to query the user's subscription information based on the user information, and send the user plane forwarding rule and the user identifier to the UPF network element.

15. A communication system, include: The network side system as claimed in claim 14; and The customer premise equipment CPE is configured to configure its own address and the address of the mounted terminal according to the first configuration information from the user plane function UPF.

16. A network device, include: Memory; as well as A processor coupled to the memory, the processor being configured to execute the method according to any one of claims 1 to 11 based on instructions stored in the memory.

17. A computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the steps of the method according to any one of claims 1 to 11.

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