CN116419271A - VN group management method, VN group management equipment and network equipment - Google Patents

VN group management method, VN group management equipment and network equipment Download PDF

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Publication number
CN116419271A
CN116419271A CN202111666620.5A CN202111666620A CN116419271A CN 116419271 A CN116419271 A CN 116419271A CN 202111666620 A CN202111666620 A CN 202111666620A CN 116419271 A CN116419271 A CN 116419271A
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China
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target
upf
group
message
session
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Chinese (zh)
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王荣
宋月
魏彬
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

A method of managing a VN group, a management device and a network device, the method comprising: the method comprises the steps that a first network element determines a target VN group to be added by a terminal according to a session establishment request sent by the terminal, sends a first message to a first target UPF and a second target UPF or to the second target UPF, wherein the first message is used for indicating the first target UPF and the second target UPF to configure tunnel information associated with the target VN group or indicating the second target UPF to configure tunnel information associated with the target VN group, and sends a session establishment request to the second target UPF, and the session establishment request carries a target VN group identifier so that the second target UPF establishes a session for the terminal based on the tunnel information and the target VN group identifier. By the method, an automatic and efficient method for configuring tunnel information can be realized.

Description

VN group management method, VN group management equipment and network equipment
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method for managing a VN group, a management device, and a network device.
Background
UPF (The User plane function, user plane function) for packet routing forwarding, policy enforcement, traffic reporting, qos handling.
SMF (Session Management function ) for taking charge of tunnel maintenance, IP address allocation and management, UP function selection, policy enforcement and control in QoS, charging data collection, roaming, etc.
In the 3GPP standard, the 5GS supports a group of users who specify the same slice information and the same DNN (Data Network Name ) to sign up for the 5G VN (5G virtual network) group, and supports the users in the 5G VN group to perform various types of local area network communications, including unicast, multicast, and this technical solution is called 5G LAN (5G local area network). The 5G LAN supports 2 session types, an IP PDU session and an ethernet PDU session, and simultaneously supports 3 data forwarding modes, data forwarding based on an N6 interface, data forwarding based on an N19 interface, and data forwarding of local switching.
Disclosure of Invention
At least one embodiment of the present disclosure provides a method, a management device, and a network device for managing a VN group, which may be implemented to establish a tunnel for the VN group.
According to one aspect of the present disclosure, at least one embodiment provides a method of managing a 5G virtual network VN group, the method comprising:
the first network element determines a target VN group to be added by the terminal according to a session establishment request sent by the terminal;
Sending a first message to a first target UPF and a second target UPF or to a second target UPF, wherein the first message is used for indicating the first target UPF and the second target UPF to configure tunnel information associated with a target VN group or indicating the second target UPF to configure tunnel information associated with the target VN group;
and sending a session establishment request to a second target UPF, wherein the session establishment request carries a target VN group identifier, so that the second target UPF establishes a session for the terminal based on the tunnel information and the target VN group identifier.
In this embodiment, after receiving the session establishment request sent by the terminal, the first network element may send a first message to the first target UPF and/or the second target UPF to instruct the first target UPF and/or the second target UPF to configure tunnel information associated with the target VN group, thereby implementing a method for automatically configuring UPF (inter) tunnel information by system control, optimizing a configuration process of tunnel information on the UPF, and improving configuration efficiency of tunnel information on the UPF.
Furthermore, the first target UPF in this embodiment is a UPF that is already currently serving the target VN group;
and/or the second target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and used for the session service initiated by the terminal.
In one embodiment, if a first target UPF is not found, the first message is sent to a second target UPF, the first message indicating that the second target UPF is configured to enable the VTEP function.
In another embodiment, if a first target UPF is found and the first target UPF is different from a second target UPF, sending the first message to the second target UPF, where the first message indicates that the second target UPF configures a VTEP-enabled function and/or configuration to establish a tunnel associated with a target VN group;
and/or;
the first message is sent to a first target UPF, the first message indicating that the first target UPF configuration establishes a tunnel associated with a target VN group.
In another embodiment, if a first target UPF is found and a second target UPF belongs to one of the first target UPFs, a first message is sent to the second target UPF, the first message indicating that the second target UPF configures a port that creates a tunnel associated with the target VN group.
Furthermore, the first network element may also receive a feedback message for the first message, the feedback message of the first message being used to indicate at least one of:
indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
Indicating the port for which a tunnel associated with the target VN group has been created.
In this embodiment, the first network element may obtain a configuration result of the first target UPF or the second target UPF configuring the tunnel information according to the first message according to the feedback message of the first message.
According to the embodiments, the first network element can send the first message to the first target UPF and/or the second target UPF, and the first message enables the first target UPF and/or the second target UPF to execute configuration of different tunnel information, so that a method for automatically configuring tunnel information on the UPF by system control is realized, a configuration process of the tunnel information on the UPF is optimized, and configuration efficiency of the tunnel information on the UPF is improved.
According to a second aspect of the present disclosure, an embodiment of the present disclosure provides a method of managing a 5G virtual network VN group, the method comprising:
the target UPF receives a first message sent by a first network element;
configuring tunnel information associated with a target VN group according to the first message;
and receiving a session establishment request sent by a first network element, wherein the session establishment request carries a target VN group identifier, and establishing a session for a terminal lifting the session establishment request based on the tunnel information and the target VN group identifier.
Specifically, the target UPF performs, according to the first message, at least one of the following methods for configuring tunnel information associated with the target VN group:
enabling the VTEP function.
The configuration establishes a tunnel associated with the target VN group.
The configuration creates the ports of the tunnel associated with the target VN group.
Furthermore, the method comprises the following steps:
sending a feedback message to the first network element, the feedback message being used to indicate at least one of:
indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
According to the embodiment, the target UPF can respond to the first message sent by the first network element so as to execute the configuration of the tunnel information, so that a method for automatically configuring the tunnel information is realized, and the target UPF can feed back the configuration result of the tunnel information to the first network element so that the first network element can monitor and manage the tunnel information configured on the UPF.
According to a third aspect of the present disclosure, embodiments of the present disclosure further provide a method of managing a 5G virtual network VN group, the method comprising:
the first network element determines a target VN group which the terminal has joined according to a session release request sent by the terminal;
Sending a second message to a third target UPF or a fourth target UPF, wherein the second message is used for indicating the third target UPF or the fourth target UPF to delete tunnel information associated with a target VN group;
and sending a session release request to the fourth target UPF, wherein the session release request is used for indicating the fourth target UPF to release the session requested to be released by the terminal.
Wherein the third target UPF is a UPF already currently serving the target VN group;
and/or the fourth target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and initiates a session service to be released for the terminal;
the third target UPF includes a fourth target UPF.
In one case, if the session to be released is not the only session of the target VN group in the fourth target UPF, a second message is sent to the fourth target UPF, the second message instructing the fourth target UPF to delete the port of the tunnel associated with the target VN group.
In another case, if the third target UPF includes two or more UPFs and the session to be released is the only session of the target VN group in the fourth target UPF, a second message is sent to the third target UPF, the second message instructing each of the third target UPFs to delete the tunnel associated with the target VN group and/or instructing each of the third target UPFs to delete the port of the tunnel associated with the target VN group.
In another case, if the third target UPF and the fourth target UPF are the same UPF and the session to be released is the only session of the target VN group in the fourth target UPF, a second message is sent to the third target UPF, where the second message instructs the third target UPF to close the VTEP function and/or instructs the third target UPF to delete the port of the tunnel associated with the target VN group.
Further, a feedback message for the second message is received, the feedback message being for indicating at least one of:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
According to the above embodiments, the first network element may send the second message to the third target UPF or the fourth target UPF according to the requirement of the terminal, so that the third target UPF or the fourth target UPF deletes the tunnel information configured for the target VN group according to the second information. Meanwhile, the first network element can send a session release request to the fourth target UPF, and when the fourth target UPF releases the session requested to be released by the terminal, the scheme can be used for automatically and efficiently deleting the tunnel and/or the session, so that the manager is prevented from performing complicated configuration on each UPF (N19 interface on the UPF).
According to a fourth aspect of the present disclosure, embodiments of the present disclosure further provide a method of managing a 5G virtual network VN group, the method comprising:
the target UPF receives a second message sent by the first network element;
deleting tunnel information associated with the target VN group according to the second message;
and releasing the session requested to be released by the terminal according to the session release request sent by the first network element.
Wherein the target UPF performs at least one of the following methods of deleting tunnel information associated with the target VN group according to the second message;
closing the VTEP function;
deleting the tunnel associated with the target VN group;
the port of the tunnel associated with the target VN group is deleted.
Furthermore, the target UPF sends a feedback message to a network element, the feedback message being used to indicate at least one of:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
According to the embodiment, the target UPF can respond to the second message sent by the first network element, so that the deletion of the tunnel information is executed, thereby realizing a method for automatically deleting the tunnel information, and the target UPF can feed back the deletion result of the tunnel information to the first network element, so that the first network element monitors and manages the tunnel information configured on the UPF.
According to a fifth aspect of the present disclosure, an embodiment of the present disclosure further provides a management apparatus, where a first network element is operated, the management apparatus includes:
the receiving module is used for receiving a session establishment request sent by a terminal and determining a target VN group to be added by the terminal according to the session establishment request;
a sending module, configured to send a first message to a first target UPF and a second target UPF or to a second target UPF, where the first message is configured to instruct the first target UPF and the second target UPF to configure tunnel information associated with a target VN group, or configured to instruct the second target UPF to configure tunnel information associated with a target VN group;
the sending module is further configured to send a session establishment request to a second target UPF, where the session establishment request carries a target VN group identifier, so that the second target UPF establishes a session for the terminal based on the tunnel information and the target VN group identifier.
Wherein the first target UPF is a UPF already currently serving the target VN group; and/or the second target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and used for the session service initiated by the terminal.
In one case, if the first target UPF is not found, the sending module sends the first message to a second target UPF, the first message indicating that the second target UPF is configured to enable VTEP functionality.
In another case, if the first target UPF is found and the first target UPF is different from the second target UPF, the sending module sends the first message to the second target UPF, where the first message indicates that the second target UPF is configured to enable the VTEP function and/or the configuration to establish a tunnel associated with the target VN group;
and/or;
the sending module sends the first message to a first target UPF, the first message indicating that the first target UPF configuration establishes a tunnel associated with a target VN group.
In another case, if a first target UPF is found and a second target UPF belongs to one of the first target UPFs, the sending module sends a first message to the second target UPF, the first message indicating that the second target UPF configures a port that creates a tunnel associated with the target VN group.
Furthermore, the receiving module is further configured to receive a feedback message for the first message, where the feedback message of the first message is used to indicate at least one of the following cases:
Indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
According to a sixth aspect of the present disclosure, an embodiment of the present disclosure further provides a management apparatus, including: a processor, a memory, and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the embodiments described above.
According to a seventh aspect of the present disclosure, an embodiment of the present disclosure further provides a network device, where the network device enables a target user plane function network element UPF, the network device includes:
a receiving module, configured to receive a first message sent by a first network element;
a configuration module, configured to configure tunnel information associated with a target VN group according to the first message;
the receiving module is further configured to receive a session establishment request sent by the first network element, where the session establishment request carries a target VN group identifier;
and the processing module is used for establishing a session for the terminal which lifts the session establishment request based on the tunnel information and the target VN group identification.
Wherein the configuration module performs, according to the first message, at least one of the following steps of configuring tunnel information associated with the target VN group:
Enabling the VTEP function.
The configuration establishes a tunnel associated with the target VN group.
The configuration creates the ports of the tunnel associated with the target VN group.
In addition, the network equipment further comprises a sending module;
the sending module is configured to send a feedback message to the first network element, where the feedback message is used to indicate at least one of the following cases:
indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
According to an eighth aspect of the present disclosure, an embodiment of the present disclosure further provides a network device, including: a processor, a memory, and a program stored on the memory and executable on the processor, which when executed by the processor, performs the steps in the various embodiments.
According to a ninth aspect of the present disclosure, an embodiment of the present disclosure further provides a management apparatus, in which the first network element is operated, the management apparatus includes:
the receiving module is used for receiving a session release request sent by the terminal and determining a target VN group added for the terminal according to the session release request;
a sending module, configured to send a second message to a third target UPF or a fourth target UPF, where the second message is used to instruct the third target UPF or the fourth target UPF to delete tunnel information associated with a target VN group;
And/or the sending module sends a session release request to the fourth target UPF, for instructing the fourth target UPF to release the session requested to be released by the terminal.
Wherein the third target UPF is a UPF already currently serving the target VN group;
and/or the fourth target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and initiates a session service to be released for the terminal;
the third target UPF includes a fourth target UPF.
In one case, if the session to be released is not the only session of the target VN group in the fourth target UPF, the sending module sends a second message to the fourth target UPF, the second message instructing the fourth target UPF to delete the port of the tunnel associated with the target VN group.
In another case, if the third target UPF includes two or more UPFs and the session to be released is the only session of the target VN group in the fourth target UPF, the sending module sends a second message to the third target UPF, the second message instructing each of the third target UPFs to delete a tunnel associated with the target VN group and/or instructing each of the third target UPFs to delete a port of a tunnel associated with the target VN group.
In another case, if the third target UPF and the fourth target UPF are the same UPF and the session to be released is the only session of the target VN group in the fourth target UPF, the sending module sends a second message to the third target UPF, where the second message instructs the third target UPF to close the VTEP function and/or instructs the third target UPF to delete the port of the tunnel associated with the target VN group.
Furthermore, the receiving module is further configured to receive a feedback message for the second message, where the feedback message is used to indicate at least one of the following cases:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
According to a tenth aspect of the present disclosure, an embodiment of the present disclosure further provides a management apparatus, including: a processor, a memory, and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps performed by the SMF in the above embodiments.
According to an eleventh aspect of the present disclosure, an embodiment of the present disclosure further provides that the network device enables a target user plane function network element UPF, the network device includes:
A receiving module, configured to receive a second message sent by the first network element;
the processing module is used for deleting the tunnel information associated with the target VN group according to the second message;
the processing module is further configured to release the session requested to be released by the terminal according to the session release request sent by the first network element.
Furthermore, the processing module performs, in accordance with the second message, at least one of the following steps of deleting tunnel information associated with the target VN group:
closing the VTEP function;
deleting the tunnel associated with the target VN group;
the port of the tunnel associated with the target VN group is deleted.
In addition, the network device further comprises a sending module, configured to send a feedback message to the first network element, where the feedback message is used to indicate at least one of the following cases:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
According to a twelfth aspect of the present disclosure, an embodiment of the present disclosure further provides a network device, including: a processor, a memory, and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the embodiments described above.
According to a thirteenth aspect of the present disclosure, the embodiments of the present disclosure further provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above embodiments.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a connection between an SMF and a UPF according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for managing a VN group according to an embodiment of the present invention when applied to a first network element;
FIG. 4 is a schematic flow chart of example A provided in an embodiment of the present invention;
FIG. 5 is a schematic flow chart of example B provided in an embodiment of the present invention;
fig. 6 is a schematic diagram of a negotiation process between a first network element and a UPF according to an embodiment of the present invention;
fig. 7 is a schematic diagram of another negotiation process between a first network element and a UPF according to an embodiment of the present invention;
Fig. 8 is a flowchart of a method for managing VN sets provided in an embodiment of the present invention when applied to UPF;
fig. 9 is a flowchart of another method for managing VN sets according to an embodiment of the present invention;
fig. 10 is a flowchart of another method for managing VN sets according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a management device according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of another management device according to an embodiment of the present invention;
fig. 14 is a schematic diagram of another structure of a network device according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of a management device according to an embodiment of the present invention;
fig. 16 is a schematic structural diagram of a network device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terms first, second, object, and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. "and/or" in the specification and claims means at least one of the connected objects.
The techniques described herein are not limited to NR systems and long term evolution (Long Time Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems and may also be used for various wireless communication systems such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system may implement radio technologies such as CDMA2000, universal terrestrial radio access (Universal Terrestrial Radio Access, UTRA), and the like. UTRA includes wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as the global system for mobile communications (Global System for Mobile Communication, GSM). OFDMA systems may implement radio technologies such as ultra mobile broadband (UltraMobile Broadband, UMB), evolved UTRA (E-UTRA), IEEE 802.21 (Wi-Fi), IEEE802.16 (WiMAX), IEEE 802.20, flash-OFDM, and the like. UTRA and E-UTRA are parts of the universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS). LTE and higher LTE (e.g., LTE-a) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-a and GSM are described in the literature from an organization named "third generation partnership project" (3rd Generation Partnership Project,3GPP). CDMA2000 and UMB are described in the literature from an organization named "third generation partnership project 2" (3 GPP 2). The techniques described herein may be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes an NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.
The following description provides examples and does not limit the scope, applicability, or configuration as set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a User terminal or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, which is not limited to a specific type of the terminal 11 in the embodiment of the present invention. The network device 12 may be a base station and/or a core network element, where the base station may be a 5G or later version base station (e.g., a gNB, a 5G NR NB, etc.), or a base station in another communication system (e.g., an eNB, a WLAN access point, or other access points, etc.), where the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, a BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary, and in the embodiment of the present invention, the base station in the NR system is merely an example, but is not limited to a specific type of the base station.
As shown in fig. 2, when the user members in the 5G VN group consist of different UPF (User Plane Function ) network elements, the SMF (sessionmanagement function ) network elements create an N19 interface with the granularity of the 5G VN group between the PSA UPFs involved in all the current 5G VN groups.
When the SMF creates the N19 interface, the SMF creates, for each PSAUPF, one or more group levels of N4 session for supporting data forwarding based on the N19 interface, where in the specifically issued N4 forwarding rule, tunnel information of a GTP tunnel on the N19 interface is involved.
For example, when the forwarding rule is to receive data sent by the N19 interface, the following N4 forwarding rule is configured to be issued:
PDR{Source Interface:core side；
CN Tunnel Information:N19 tunnel header(i.e.N19 GTP-U F-TEID)
}
FAR{Destination interface:5G VN internal；
}。
for another example, when the forwarding rule is data forwarding for implementing the N19 interface, the N4 forwarding rule issued is configured as follows:
PDR{Source Interface:5G VN internal；
Destination address:IP/MAC address(es)of UEs anchored at the peer UPF of this N19 tunnel；
}
FAR{Destination interface:Core side；
Outer Header Creation＝N19 tunnel information；
}。
in order to achieve the receiving and forwarding of the N19 interface data, in the existing standard, the SMF needs to create a Group level N4 session for the N19 interface on each PSF UPF, and maintain and manage the N4 session. As the number of PSA UPFs in a 5G LAN Group increases, the number of Group level N4 sessions that the SMF needs to create will increase exponentially, as the number of UPFs increases, the number of N19 tunnels that the SMF needs to create between UPFs, the number of N4 sessions maintained will increase significantly,
Therefore, the GTP-U tunnel encapsulation technology adopted in the prior art needs to fully interconnect all related PSA UPFs one to one, network complexity is high, meanwhile, N19 interface tunnel management based on Group-level session management is also complex, as the number of UPFs increases, the created PDU session also grows exponentially, the load of SMF management resources is increased, and meanwhile, the complexity of SMF maintenance network route forwarding rules is increased.
To solve the above technical problem, an embodiment of the present disclosure provides a method for managing a VN group of a 5G virtual network, as shown in fig. 3, including:
s301, a first network element determines a target VN group to be added by a terminal according to a session establishment request sent by the terminal;
s302, sending a first message to a first target UPF and a second target UPF or to a second target UPF, wherein the first message is used for indicating the first target UPF and the second target UPF to configure tunnel information associated with a target VN group or indicating the second target UPF to configure tunnel information associated with the target VN group;
s303, a session establishment request is sent to a second target UPF, wherein the session establishment request carries a target VN group identifier, so that the second target UPF establishes a session for the terminal based on the tunnel information and the target VN group identifier.
It should be noted that, the first network element in the present disclosure may be a session management function SMF network element, or a network element that performs a part of SMF network element functions, or the first network element is implemented by multiple network elements of the same type together (for example, by multiple distributed SMF network elements, or multiple SMF network elements), or by multiple network elements of different types.
In the present disclosure, the first target UPF and the second target UPF may be the same UPF or different UPFs, and at the same time, the first target UPF or the second target UPF may include one UPF or multiple UPFs, which is specifically determined according to the actual scene condition.
For example, the first target UPF is a UPF that is already currently serving the target VN group, and/or the second target UPF is a UPF that serves the current session initiated by the terminal, in which case the second target UPF is one of the first target UPFs, which may also be considered the first target UPF.
In this embodiment, the first network element may determine whether the first target UPF exists by determining whether there exists a UPF serving the target VN group in the UPFs; and/or the first network element selects the UPF of the session service initiated by the terminal as a second target UPF according to the position information and/or the accessed slice information of the terminal.
In one case, when the first network element selects a UPF for a session initiated by the terminal, multiple UPFs that satisfy the selection condition (satisfy the selection condition of the location information and/or the accessed slice information) may be found, where the first network element may determine whether a UPF that satisfies the selection condition exists in the first target UPFs, and if so, may select a second target UPF serving the session of the terminal from the first target UPFs, so that the first target UPF and/or the second target UPF are more efficient and convenient when configuring tunnel information.
In step S301, after the first network element receives the session establishment request (such as a PDU session establishment request) sent by the terminal, the first network element may acquire the location information of the terminal (for example, carry the corresponding area identifier) according to the location information of the terminal (for example, carry the identification information used to indicate the location in the session establishment request sent by the terminal, determine the location information of the terminal according to the identification information), determine the 5G slice information to be accessed by the terminal according to the content of the session establishment request, and the SMF determines the UPF of the session service proposed by the terminal according to the location information and/or the accessed slice information, and determine the VN group to be added (i.e., the target VN group) according to the subscription information of the terminal.
In step S302, the first network element may send first information to the first target UPF and/or the second target UPF according to whether the first target UPF exists in each UPF, so that the first target UPF and/or the second target UPF configures different tunnel information according to the first information.
In one implementation, the first network element may determine, with the target VN group as an index, whether there is a session associated with the target VN group (e.g., a session joining the target VN group) in each UPF, thereby determining whether there is a first target UPF.
For example, the first network element may determine, according to session management information maintained in the SMF, with the target VN group as an index, whether a session associated with the target VN group exists in the session management information.
In this embodiment, the first network element may confirm whether each UPF seed has the first target UPF according to the above procedure, and obtain the following confirmation result: 1. the first target UPF is not found; 2. discovering a first target UPF, and the first target UPF is different from a second target UPF; 3. the first target UPFs are found and the second target UPF belongs to one of the first target UPFs.
In this embodiment, the first network element may send a first message to the first target UPF and/or the second target UPF according to the different acknowledgement results, so that the first target UPF and/or the second target UPF configures different tunnel information for the target VN group according to the first message (the first message may carry identification information of the target VN group).
In one case, when the first network element does not find the first target UPF, the first message is sent to the second target UPF to instruct the second target UPF to configure to enable the VTEP function.
In another case, if the first target UPF is found and the first target UPF is different from the second target UPF, sending the first message to the second target UPF to instruct the second target UPF to configure the VTEP enabling function and/or configuration to establish a tunnel associated with the target VN group; and/or the number of the groups of groups,
the first message is sent to a first target UPF, the first message indicating that the first target UPF configuration establishes a tunnel associated with a target VN group.
In another case, if a first target UPF is found and a second target UPF belongs to one of the first target UPFs, a first message is sent to the second target UPF, the first message indicating that the second target UPF configures a port that creates a tunnel associated with the target VN group.
It should be noted that, in the above steps, the first message sent by the first network element to the first target UPF and/or the second target UPF may be one message, or may be a first message composed of a plurality of messages.
In one case, the first network element implements the first target UPF and/or the second target UPF by carrying different indication information in the first message, where the first message may be a newly created message, or the first message may be implemented by using an existing message. The specific examples are as follows:
In example a, if the first network element does not find the first target UPF, the first network element sends a first message including first indication information to the second target UPF, where the first indication information is used to indicate that the second target UPF is configured to enable the VTEP function.
For purposes of detailed description, an exemplary flow chart is provided for example a, as shown in figure 4,
in this embodiment, the first network element determines that the second target UPF is UPF1 according to subscription information of the terminal.
The first network element judges that a first UPF does not exist in each UPF through session management information, at this time, the first network element sends a first message (the first message may be defined as 5: 5G VN Group Management Request) to UPF1, wherein the first message carries first indication information, and UPF1 enables a VTEP function according to the first indication information in the first message.
The UPF1 sends a feedback message (the feedback message may be defined as 5: 5G VN Group Management Response) to the first network element, where the feedback message carries indication information that VTEP is enabled, and may carry a port created by the UPF1 for the session initiated by the terminal.
The first network element sends a session establishment request to the UPF1, and the UPF1 establishes a session for the terminal according to a to-be-added VN Group identifier (such as 5G VN Group ID) carried in the session establishment request and the established port. Meanwhile, the UPF1 sends session establishment response information to the first network element, and the SMF sends notification information to the terminal after receiving the session establishment response information to notify the terminal that the session is established.
In example B, if a first target UPF is found and the first target UPF is different from a second target UPF, the first network element sends a first message to the second target UPF that includes second indication information, where the second indication information may be used to instruct the second target UPF to configure a VTEP-enabled function and/or configure to establish a tunnel associated with a target VN group; and/or the number of the groups of groups,
the first message is sent to a first target UPF, the first message indicating that the first target UPF configuration establishes a tunnel associated with a target VN group.
In this example, when the second target UPF does not enable the VTEP function, then the second target UPF enables the VTPE according to the first message and is configured to establish a tunnel associated with the target VN group after the second target UPF enables the VTEP function.
Or the second target UPF enables the VTPE according to the first message, and establishes a tunnel associated with the target VN group according to the session establishment request configuration by itself when the session establishment request is received subsequently.
Or the second target UPF enables the VTEP function before receiving the first message, and when the second target UPF receives the first message, establishes a tunnel associated with the target VN group according to the first message configuration.
In this example, the first network element may also send a first message to the first target UPF to instruct the first target UPF configuration to establish a tunnel associated with the target VN group.
For the sake of detailed description, an exemplary flowchart is provided for example B, and as shown in fig. 5, in this embodiment, the second target UPF is UPF1.
In this embodiment, the first network element determines, through the session management information, that there is a first target UPF, and the first target UPF is different from the second target UPF, for example, in this example, the first network element determines that there is a session associated with the target VN group in both UPF2 and UPF3, and then the first target UPF includes UPF2 and UPF3.
At this time, the first network element sends a first message to the UPF1 and/or the UPF2, UPF3, where the first message carries second indication information, the UPF1 configures the VTEP enabling function and/or the configuration to establish a tunnel associated with the target VN group according to the first message (the specific configuration enabling the VTPE function and/or the configuration to establish the tunnel associated with the target VN group is described above, which is not described herein), and sends a feedback message to the first network element, where the feedback message may carry indication information that the VTEP enabling function and/or indication information that the tunnel associated with the target VN group has been established (specifically, based on the configuration content completed by the UPF 1), and after the UPF1 establishes the tunnel associated with the target VN group, the tunnel port may also be carried in the feedback message.
If the first network element sends the first message to the UPF2 and UPF3, the UPF2 and UPF3 establish a tunnel associated with the target VN group according to the first message configuration, and may send a feedback message to the first network element, where the feedback message carries indication information of the tunnel associated with the target VN group, and may further carry ports where the UPF2 and UPF3 establish a tunnel for the target VN group.
The first network element sends a session establishment request to UPF1, and the UPF1 establishes a session for the terminal according to the VN group identifier to be added and the port to be established carried in the session establishment request. UPF1 sends session establishment response information to a first network element, and the first network element sends notification information to a terminal after receiving the session establishment response information to notify the terminal that the session is established.
In this example, the second indication message carried in the first message sent by the first network element to the UPF1 and/or UPF2, UPF3 may be plural or one, for example, when the second indication message is plural, one of them may be used to indicate that the VTEP function is enabled, the other is used to indicate that the tunnel associated with the target VN group is established, and the other is used to indicate that the port of the tunnel associated with the target VN group is created.
In example C, if a first target UPF is found and a second target UPF belongs to one of the first target UPFs, the first network element sends a first message to the second target UPF, the first message indicating that the second target UPF configures a port that creates a tunnel associated with the target VN group.
In this case, it is explained that the VTEP function has been enabled in the second target UPF and that the tunnel associated with the target VN group has been established for the other session.
As shown in fig. 4, the first network element confirms that the UPF1 is the second target UPF, and that the UPF1 has other sessions associated with the target VN group (i.e. the UPF1 belongs to the first target UPF at the same time), the group first network element sends a first message carrying third instruction information to the UPF1, which is used to instruct the UPF1 to create a new port for the session applied by the terminal, after creating the port, the UPF1 may send a feedback message to the first network element, where the feedback message may carry indication information for creating the port of the tunnel associated with the target VN group, and may also carry the specifically created port.
The first network element sends a session establishment request to the UPF1, the UPF1 establishes a session for the terminal according to a to-be-added VN Group identifier (such as a 5G VN Group ID) carried in a session establishment instruction and the established port, the UPF1 sends session establishment response information to the SMF, and the SMF sends a notification message to the terminal after receiving the session establishment response information to notify the terminal that the session is established.
It should be noted that in the above embodiments, the UPF may be PDU session anchor UPF, i.e., PSA UPF.
According to the embodiments, the first network element can send the first message to the first target UPF and/or the second target UPF according to the condition that the first target UPF exists in the network, so as to instruct the first target UPF and/or the second target UPF to configure tunnel information associated with the target VN group, thereby providing an automatic and efficient tunnel establishment method, without additional configuration to each UPF (port on the UPF), saving labor cost, and improving networking efficiency.
It should be noted that, in this embodiment, the tunnel created by the first target UPF and/or the second target UPF according to the first message may be a VXLAN tunnel.
The tunnel information includes tunnel information of a VXLAN (Virtual eXtensible Local Area Network, extensible virtual local area network) tunnel, for example, a VTEP that enables support of establishing the VXLAN tunnel, for example, further establishing the VXLAN tunnel, further for example, creating a port of the VXLAN tunnel, and the like.
The VXLAN tunnel is one of NVO3 (Network Virtualization over Layer 3) standard technologies defined by IETF, and adopts a message encapsulation mode of MAC-in-UDP, so that the expansion of a two-layer network in a three-layer range can be realized, and the requirement of migration of a large two-layer virtual machine of a data center can be met. In the VXLAN network, virtual machines belonging to the same VXLAN are in the same logic two-layer network, and two layers of virtual machines are communicated with each other; and two layers of isolation between virtual machines belonging to different VXLAN. In an application, tunnel endpoints of VXLAN are called VTEPs (VXLAN Tunnel End Point, VXLAN tunnel endpoints), different services (tenants) in VXLAN can be distinguished by VNI (VXLAN Network Identifier ).
In this embodiment, by using the VXLAN tunnel, it is further possible to automatically establish a tunnel between the UPFs through a BGP route of a specific type, without creating an N4 session for each N19 port on the UPF, thereby reducing the management resource load of the SMF and reducing the complexity of forwarding the SMF management session route.
In this embodiment, since there may be a UPF (e.g., address resource not used for establishing a VXLAN tunnel) that does not support the VTEP function in the network, a negotiation procedure between the first network element and the UPF is also provided in this embodiment, where the UPF may indicate whether the first network element supports the VTEP function by using information agreed with the first network element, for example, the agreed information may be "N19-VXLAN", and as shown in fig. 6 and fig. 7, two negotiation procedures between the first network element and the UPF are provided by way of example.
In one example, a first network element initiates a coupling establishment to a UPF, the first network element initiates an association request "PFCP Association Setup Request" to the UPF, the UPF that receives the association request sends an association response message "PFCP Association Setup Response (UP feature= [ N19-VXLAN ], VXLAN resources (VTEP IP range))" to the first network element, the association response message carries agreed information "N19-VXLAN", and after the first network element receives the association response message sent by the UPF, the first network element recognizes that the association response message includes N19-VXLAN, so that the first network element knows that the UPF supports VTEP functions and can support establishment of VXLAN tunnels.
In another example, the UPF actively initiates the coupling establishment to the first network element, and when the UPF initiates the association request to the first network element, the UPF carries the agreed information "N19-VXLAN", such as "PFCP Association Setup Request (UP feature= [ N19_vxlan ], VXLAN resources (VTEP IP range))", and when the first network element recognizes that the association request includes N19-VXLAN, the first network element knows that the UPF supports the VTEP function and can support establishment of the VXLAN tunnel.
In this embodiment, the first network element determines whether the UPF supports establishment of the VXLAN tunnel by determining whether the message sent by the UPF to itself includes contracted information, and when the establishment of the VXLAN tunnel is supported, the first network element may send a first message or a second message to the UPF supporting the VTEP function, so as to instruct the UPF to automatically configure tunnel information for establishing the tunnel or delete tunnel information for the tunnel. Thus, it can be seen that through the above interaction process, the first network element can automatically select an appropriate UPF to implement the steps of the schemes in this embodiment.
The embodiment of the disclosure also provides another method for managing a 5G virtual network VN group, as shown in fig. 8, the method includes:
s801, the target UPF receives a first message sent by a first network element;
S802, configuring tunnel information associated with a target VN group according to the first message;
s803 receives a session establishment request sent by a first network element, wherein the session establishment request carries a target VN group identifier, and establishes a session for a terminal lifting the session establishment request based on the tunnel information and the target VN group identifier.
In this embodiment, the target UPF may be deployed in a network device, which may be a base station device or a communication switching device.
In step S802, the target UPF may perform, according to the first message, at least one of the following methods of configuring tunnel information associated with the target VN group:
a enabling the VTEP function;
b, configuring and establishing a tunnel associated with the target VN group;
c configuring ports that create tunnels associated with the target VN group.
In one example, the target UPF may perform at least one of the step methods a, b, c according to different indication information carried in the first message.
For example, when the target UPF receives a first message containing first indication information, the target UPF configures enabling VTEP functions, e.g., configures OSPF protocol, configures address information for establishing VXLAN tunnel, etc., according to the first indication information.
In this embodiment, since the first message carries the first indication information, it is indicated that the session associated with the target VN group does not exist in the network yet, at this time, the target UPF may only enable the VTEP function, and when subsequently receiving the first message including other indication information sent by the first network element, establish the VXLAN tunnel with the corresponding UPF.
In one example, when the target UPF receives the first message containing the second indication information, the target UPF establishes a tunnel associated with the target VN group according to the second indication information configuration.
In one example, when the target UPF receives the first message including the third indication information, the target UPF configures a port that creates a tunnel associated with the target VN group according to the third indication information.
In this embodiment, the target UPF may further send a feedback message to the first network element after configuring tunnel information associated with the target VN group according to the first message sent by the first network element.
The feedback message is used to indicate at least one of the following:
indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
Meanwhile, the feedback message can also carry the port of the tunnel created by the target UPF according to the first message configuration.
In step S803, the target UPF receives a session establishment request sent by the first network element, where the session establishment request carries an identifier of a target VN Group (5G VN Group ID) to be added by the terminal, and in one case, the session establishment request may also carry a port of the tunnel created by the target UPF in the foregoing step, where the target UPF establishes a session for the terminal according to the identifier of the target VN Group and the port.
According to the embodiment, the target UPF can execute configuration to create the tunnel information associated with the target VN group based on the first message sent by the first network element, and related configuration on the UPF by an administrator is not needed, so that the efficiency of constructing the network and configuring the network is effectively improved.
In the embodiment of the present disclosure, when a user ends a session, in order to implement recycling multiplexing of system resources, a target UPF may release the session, and based on this, the embodiment of the present disclosure further provides a method for managing a VN group of a 5G virtual network, as shown in fig. 9, where the method includes:
s901, a first network element determines a target VN group which the terminal has joined according to a session release request sent by the terminal;
s902 sending a second message to a third target UPF or a fourth target UPF, where the second message is used to instruct the third target UPF or the fourth target UPF to delete tunnel information associated with a target VN group;
s903 sends a session release request to the fourth target UPF, for instructing the fourth target UPF to release the session requested to be released by the terminal.
In this embodiment, the third target UPF is a UPF that is already currently serving the target VN group;
and/or the fourth target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and initiates a session service to be released for the terminal;
The third target UPF includes a fourth target UPF.
It should be noted that the third target UPF and the fourth target UPF may be the same or different, and specifically determined according to the environmental conditions, for example, when there is only one UPF associated with the target VN group in the network, the UPF immediately is the third target UPF and the fourth target UPF.
In step S901, after the first network element receives the session release request sent by the terminal, the session to be released may be determined according to the session release request, and a fourth target UPF serving the session to be released by the terminal and a target VN group associated with the target session to be released by the terminal are determined.
In this embodiment, after receiving the session release request sent by the terminal, the first network element may determine whether a target VN group associated with the session to be released exists in the network, and send a second message to the third target UPF and/or the fourth target UPF according to the determination result, so as to instruct the third target UPF and/or the fourth target UPF to delete the tunnel information according to the second message.
In one case, if the session to be released is not the only session of the target VN group in the fourth target UPF, which means that there is also session service of other terminals in the fourth target UPF, the first network element sends a second message to the fourth target UPF, where the second message instructs the fourth target UPF to delete the port of the tunnel associated with the target VN group. Thus, only the port of the tunnel associated with the target VN group is deleted, and the VTEP function is deleted or closed, so that the session service of the other terminal is not affected.
In another case, if the third target UPF includes two or more UPFs and the session to be released is the only session of the target VN group in the fourth target UPF, the first network element sends a second message to the third target UPF, the second message instructing each UPF in the third target UPF to delete the tunnel associated with the target VN group and/or instructing each UPF in the third target UPF to delete the port of the tunnel associated with the target VN group.
In another case, if the third target UPF and the fourth target UPF are the same UPF and the session to be released is the only session of the target VN group in the fourth target UPF, the first network element sends a second message to the third target UPF, where the second message instructs the third target UPF to close the VTEP function and/or instructs the third target UPF to delete the port of the tunnel associated with the target VN group.
In one implementation, the first network element may be configured to instruct the third target UPF and/or the fourth target UPF to select a method for performing different tunnel information deletion according to different indication information by carrying different indication information in the second message.
It should be noted that, the second message is similar to the first message, and the second message may be one message, or may be a first message composed of a plurality of messages, or the second message may be a newly created message, or may be implemented by using an existing message.
In one embodiment, when the first network element determines that the session to be released is not the only session of the target VN group in the fourth target UPF according to the session management information, the first network element sends a second message including fourth indication information to the fourth target UPF, where the fourth indication information is used to instruct the fourth target UPF to delete a port of a tunnel associated with the target VN group (specifically, delete a port of a tunnel associated with the target VN group created for the session to be released in the fourth target UPF).
In another embodiment, when the first network element determines that the third target UPF includes two or more UPFs according to the session management information, and the session to be released is the only session of the target VN group in the fourth target UPF, the first network element sends a second message including fifth indication information to the third target UPF, where the fifth indication information is used to instruct each UPF in the third target UPF to delete a tunnel associated with the target VN group, and/or instruct each UPF in the third target UPF to delete a port of the tunnel associated with the target VN group.
In another embodiment, when the first network element determines that the third target UPF and the fourth target UPF are the same UPF according to the session management information, and the session to be released is the only session of the target VN group in the fourth target UPF, the first network element sends a second message including sixth indication information to the third target UPF, where the sixth indication information is used to instruct the third target UPF to close the VTEP function, and/or instruct the third target UPF to delete the port of the tunnel associated with the target VN group.
In this embodiment, the third target UPF and/or the fourth target UPF may further send a feedback message to the first network element, where the feedback message is used to indicate at least one of the following:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
The first network element may maintain and manage the UPF according to the feedback message.
According to the above embodiments, it can be seen that the third target UPF or the fourth target UPF can execute different steps of deleting tunnel information based on the second message sent by the first network element, so that an administrator does not need to perform related configuration on the UPF, and the efficiency of network configuration is effectively improved.
The embodiment of the disclosure also provides a method for managing a 5G virtual network VN group, as shown in fig. 10, the method includes:
s1001, the target UPF receives a second message sent by the first network element;
s1002, deleting tunnel information associated with a target VN group according to the second message;
s1003, according to the session release request sent by the first network element, releasing the session requested to be released by the terminal.
In this embodiment, the target UPF deleting the tunnel information associated with the target VN group according to the second message may include at least one of the following ways.
a, closing the VTEP function;
b deleting the tunnel associated with the target VN group;
c deleting the port of the tunnel associated with the target VN group.
In one implementation manner, the second message sent by the first network element to the target UPF may carry different indication information, and the manner of indicating, by the different indication information, the target UPF to perform different tunnel information deletion includes:
and when the second message carries fourth indication information, the target UPF closes the VTEP function according to the fourth indication information.
And when the second message carries fifth indicating information, deleting the tunnel associated with the target VN group by the target UPF according to the fifth indicating information.
And when the second message carries sixth indication information, the target UPF deletes the port of the tunnel associated with the target VN group according to the sixth indication information.
According to the embodiments of the above embodiments, it can be seen that the target UPF can execute different methods for deleting tunnel information based on the second message sent by the first network element, so that an administrator does not need to perform related configuration on the UPF, and the efficiency of network configuration is effectively improved.
The foregoing describes various methods of embodiments of the present invention. An apparatus for carrying out the above method is further provided below.
As shown in fig. 11, the embodiment of the present invention further provides a management apparatus 1100, including:
a receiving module 1101, configured to receive a session establishment request sent by a terminal, and determine a target VN group to be added by the terminal according to the session establishment request;
a sending module 1102, configured to send a first message to a first target UPF and a second target UPF or to a second target UPF, where the first message is used to instruct the first target UPF and the second target UPF to configure tunnel information associated with a target VN group, or instruct the second target UPF to configure tunnel information associated with a target VN group;
the sending module 1102 is further configured to send a session establishment request to a second target UPF, where the session establishment request carries a target VN group identifier, so that the second target UPF establishes a session for the terminal based on the tunnel information and the target VN group identifier.
The first target UPF is a UPF already currently serving the target VN group;
and/or the second target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and used for the session service initiated by the terminal.
If the first target UPF is not found,
the sending module 1102 sends the first message to a second target UPF indicating that the second target UPF configuration enables VTEP functionality.
If the first target UPF is found, and the first target UPF is different from the second target UPF,
the sending module 1102 sends the first message to a second target UPF, the first message indicating that the second target UPF is configured to enable VTEP functionality and/or is configured to establish a tunnel associated with a target VN group;
and/or;
the sending module 1102 sends the first message to a first target UPF, the first message indicating that the first target UPF configuration establishes a tunnel associated with a target VN group.
If a first target UPF is found, and a second target UPF belongs to one of the first target UPFs,
the sending module 1102 sends a first message to the second target UPF indicating that the second target UPF configures ports that create tunnels associated with the target VN group.
The receiving module 1101 is further configured to receive a feedback message for a first message, where the feedback message of the first message is used to indicate at least one of the following:
indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
Note that, the management device 1100 in this embodiment is a device corresponding to the method shown in fig. 3, and the implementation manner in each embodiment is applicable to the embodiment of this device, so that the same technical effects can be achieved. The device provided by the embodiment of the invention can realize all the method steps realized by the embodiment of the method and can achieve the same technical effects, and the parts and the beneficial effects which are the same as those of the embodiment of the method in the embodiment are not described in detail.
As shown in fig. 12, the embodiment of the present disclosure further provides a network device 1200, where the network device 1200 enables a target user plane function network element UPF, and the network device 1200 includes:
a receiving module 1201, configured to receive a first message sent by a first network element;
a configuration module 1202, configured to configure tunnel information associated with a target VN group according to the first message;
the receiving module 1201 is further configured to receive a session establishment request sent by the first network element, where the session establishment request carries a target VN group identifier;
a processing module 1203 is configured to establish a session for the terminal that raised the session establishment request based on the tunnel information and the target VN group identifier.
The configuration module 1202 performs, according to the first message, at least one of the following steps of configuring tunnel information associated with the target VN group:
enabling the VTEP function.
The configuration establishes a tunnel associated with the target VN group.
The configuration creates the ports of the tunnel associated with the target VN group.
The network device 1200 further includes a sending module 1204;
the sending module 1204 is configured to send a feedback message to the first network element, where the feedback message is used to indicate at least one of the following situations:
indicating that the VTEP function has been enabled;
Indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
Note that, the network device 1200 in this embodiment is a device corresponding to the method shown in fig. 8, and the implementation manner in each embodiment is applicable to the embodiment of the device, so that the same technical effects can be achieved. The device provided by the embodiment of the invention can realize all the method steps realized by the embodiment of the method and can achieve the same technical effects, and the parts and the beneficial effects which are the same as those of the embodiment of the method in the embodiment are not described in detail.
As shown in fig. 13, the embodiment of the present disclosure further provides a management apparatus 1300, where a first network element is running in the management apparatus 1300, and the management apparatus 1300 includes:
a receiving module 1301, configured to receive a session release request sent by a terminal, and determine, according to the session release request, a target VN group to which the terminal has joined;
a sending module 1302, configured to send a second message to a third target UPF or a fourth target UPF, where the second message is used to instruct the third target UPF or the fourth target UPF to delete tunnel information associated with a target VN group;
And/or, the sending module 1302 sends a session release request to the fourth target UPF, for instructing the fourth target UPF to release the session requested to be released by the terminal.
The third target UPF is a UPF already currently serving the target VN group;
and/or the fourth target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and initiates a session service to be released for the terminal;
the third target UPF includes a fourth target UPF.
If the session to be released is not the only session of the target VN group in the fourth target UPF,
the sending module 1302 sends a second message to the fourth target UPF instructing the fourth target UPF to delete the port of the tunnel associated with the target VN group.
If the third target UPF comprises two or more UPFs, and the session to be released is the only session for the target VN group in the fourth target UPF,
the sending module 1302 sends a second message to the third target UPF instructing each of the third target UPF to delete the tunnel associated with the target VN group and/or instructing each of the third target UPF to delete the port of the tunnel associated with the target VN group.
If the third target UPF is the same as the fourth target UPF, and the session to be released is the only session for the target VN group in the fourth target UPF,
The sending module 1302 sends a second message to the third target UPF instructing the third target UPF to close the VTEP function and/or instructing the third target UPF to delete the port of the tunnel associated with the target VN group.
The receiving module 1301 is further configured to receive a feedback message for the second message, where the feedback message is used to indicate at least one of the following situations:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
Note that, the management device 1100 in this embodiment is a device corresponding to the method shown in fig. 9, and the implementation manner in each embodiment is applicable to the embodiment of this device, so that the same technical effects can be achieved. The device provided by the embodiment of the invention can realize all the method steps realized by the embodiment of the method and can achieve the same technical effects, and the parts and the beneficial effects which are the same as those of the embodiment of the method in the embodiment are not described in detail.
As shown in fig. 14, the embodiment of the present disclosure further provides a network device 1400, where the network device 1400 enables a target user plane function network element UPF, and the network device 1400 includes:
A receiving module 1401, configured to receive a second message sent by the first network element;
a processing module 1402, configured to delete tunnel information associated with a target VN group according to the second message;
the processing module 1402 is further configured to release the session requested to be released by the terminal according to the session release request sent by the first network element.
The processing module 1402 performs, according to the second message, at least one of the following steps of deleting tunnel information associated with the target VN group:
closing the VTEP function;
deleting the tunnel associated with the target VN group;
the port of the tunnel associated with the target VN group is deleted.
The network device 1400 further comprises a sending module 1403 for sending a feedback message to the first network element, the feedback message being used to indicate at least one of:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
Note that, the network device 1400 in this embodiment is a device corresponding to the method shown in fig. 10, and the implementation manner in each embodiment is applicable to the embodiment of the device, so that the same technical effects can be achieved. The device provided by the embodiment of the invention can realize all the method steps realized by the embodiment of the method and can achieve the same technical effects, and the parts and the beneficial effects which are the same as those of the embodiment of the method in the embodiment are not described in detail.
As shown in fig. 15, the embodiment of the present disclosure further provides a management apparatus 1500, which includes a processor 1501, a memory 1502, and a computer program stored in the memory 1502 and capable of running on the processor 1501, where the computer program is executed by the processor 1501 to implement each process of the above embodiment of the method for managing a 5G virtual network VN group executed by the management apparatus 1500, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.
As shown in fig. 16, an embodiment of the present invention further provides a network device 1600, which includes a processor 1601, a memory 1602, and a computer program stored in the memory 1602 and capable of being executed on the processor 1601, where the computer program is executed by the processor 1601 to implement each process of the method embodiment of managing a 5G virtual network VN group executed by the network device 1600 and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.
The embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements each process of the method embodiment of managing a 5G virtual network VN group, and the same technical effect can be achieved, so that repetition is avoided, and details are not repeated here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (41)

1. A method of managing a 5G virtual network VN group, the method comprising:
the first network element determines a target VN group to be added by the terminal according to a session establishment request sent by the terminal;
sending a first message to a first target UPF and a second target UPF or to a second target UPF, wherein the first message is used for indicating the first target UPF and the second target UPF to configure tunnel information associated with a target VN group or indicating the second target UPF to configure tunnel information associated with the target VN group;
and sending a session establishment request to a second target UPF, wherein the session establishment request carries a target VN group identifier, so that the second target UPF establishes a session for the terminal based on the tunnel information and the target VN group identifier.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the first target UPF is a UPF already currently serving the target VN group;
and/or the second target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and used for the session service initiated by the terminal.
3. The method according to claim 1, characterized in that the method comprises:
if the first target UPF is not found, the first message is sent to the second target UPF, and the first message indicates that the second target UPF is configured to enable the VTEP function.
4. The method of claim 1, wherein if the first target UPF is found and the first target UPF is different from the second target UPF, the method further comprises:
sending the first message to a second target UPF, the first message indicating that the second target UPF is configured to enable VTEP functionality and/or configuration to establish a tunnel associated with a target VN group;
and/or;
the first message is sent to a first target UPF, the first message indicating that the first target UPF configuration establishes a tunnel associated with a target VN group.
5. The method of claim 1, wherein if the first target UPF is found and the second target UPF belongs to one of the first target UPFs, the method further comprises:
A first message is sent to the second target UPF, the first message indicating that the second target UPF configures a port that creates a tunnel associated with the target VN group.
6. The method according to claim 1, wherein the method further comprises:
receiving a feedback message for a first message, the feedback message of the first message being used to indicate at least one of:
indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
7. A method of managing a 5G virtual network VN group, the method comprising:
the target UPF receives a first message sent by a first network element;
configuring tunnel information associated with a target VN group according to the first message;
and receiving a session establishment request sent by a first network element, wherein the session establishment request carries a target VN group identifier, and establishing a session for a terminal lifting the session establishment request based on the tunnel information and the target VN group identifier.
8. The method of claim 7, wherein the target UPF performs, in accordance with the first message, at least one of the following methods of configuring tunnel information associated with the target VN group:
Enabling the VTEP function.
Configuring and establishing a tunnel associated with the target VN group;
the configuration creates the ports of the tunnel associated with the target VN group.
9. The method of claim 7, wherein the method further comprises:
sending a feedback message to the first network element, the feedback message being used to indicate at least one of:
indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
10. A method of managing a 5G virtual network VN group, the method comprising:
the first network element determines a target VN group which the terminal has joined according to a session release request sent by the terminal;
sending a second message to a third target UPF or a fourth target UPF, wherein the second message is used for indicating the third target UPF or the fourth target UPF to delete tunnel information associated with a target VN group;
and sending a session release request to the fourth target UPF, wherein the session release request is used for indicating the fourth target UPF to release the session requested to be released by the terminal.
11. The method of claim 10, wherein the step of determining the position of the first electrode is performed,
the third target UPF is a UPF already currently serving the target VN group;
And/or the fourth target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and initiates a session service to be released for the terminal;
the third target UPF includes a fourth target UPF.
12. The method according to claim 10, wherein if the session to be released is not the only session of the target VN group in the fourth target UPF, the method comprises:
a second message is sent to a fourth target UPF, the second message instructing the fourth target UPF to delete a port of a tunnel associated with a target VN group.
13. The method according to claim 10, wherein if the third target UPF comprises two or more UPFs and the session to be released is the only session of the target VN group in the fourth target UPF, the method comprises:
a second message is sent to a third target UPF, the second message instructing each of the third target UPFs to delete a tunnel associated with a target VN group and/or instructing each of the third target UPFs to delete a port of a tunnel associated with a target VN group.
14. The method of claim 10, wherein if the third target UPF and the fourth target UPF are the same UPF and the session to be released is the only session of the target VN group in the fourth target UPF, the method comprises:
A second message is sent to a third target UPF, the second message instructing the third target UPF to close the VTEP function and/or instructing the third target UPF to delete a port of a tunnel associated with a target VN group.
15. The method according to claim 10, wherein the method further comprises:
receiving a feedback message for the second message, the feedback message being for indicating at least one of:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
16. A method of managing a 5G virtual network VN group, the method comprising:
the target UPF receives a second message sent by the first network element;
deleting tunnel information associated with the target VN group according to the second message;
and releasing the session requested to be released by the terminal according to the session release request sent by the first network element.
17. The method according to claim 16, wherein the target UPF performs at least one of the following methods of deleting tunnel information associated with the target VN group according to the second message;
closing the VTEP function;
deleting the tunnel associated with the target VN group;
The port of the tunnel associated with the target VN group is deleted.
18. The method of claim 16, wherein the method further comprises:
sending a feedback message to the first network element, the feedback message being used to indicate at least one of:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
19. A management device having a first network element operating therein, the management device comprising:
the receiving module is used for receiving a session establishment request sent by a terminal and determining a target VN group to be added by the terminal according to the session establishment request;
a sending module, configured to send a first message to a first target UPF and a second target UPF or to a second target UPF, where the first message is configured to instruct the first target UPF and the second target UPF to configure tunnel information associated with a target VN group, or configured to instruct the second target UPF to configure tunnel information associated with a target VN group;
the sending module is further configured to send a session establishment request to a second target UPF, where the session establishment request carries a target VN group identifier, so that the second target UPF establishes a session for the terminal based on the tunnel information and the target VN group identifier.
20. The management device of claim 19, wherein,
the first target UPF is a UPF already currently serving the target VN group;
and/or the second target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and used for the session service initiated by the terminal.
21. The management device of claim 19, wherein, if the first target UPF is not found,
the sending module sends the first message to a second target UPF, the first message indicating that the second target UPF is configured to enable VTEP functionality.
22. The management device of claim 19, wherein if the first target UPF is found and the first target UPF is different from the second target UPF,
the sending module sends the first message to a second target UPF, the first message indicating that the second target UPF is configured to enable VTEP functionality and/or is configured to establish a tunnel associated with a target VN group;
and/or;
the sending module sends the first message to a first target UPF, the first message indicating that the first target UPF configuration establishes a tunnel associated with a target VN group.
23. The management device of claim 19, wherein if the first target UPF is found and the second target UPF belongs to one of the first target UPFs,
The sending module sends a first message to the second target UPF indicating that the second target UPF configures a port that creates a tunnel associated with the target VN group.
24. The management device of claim 19, wherein,
the receiving module is further configured to receive a feedback message for a first message, where the feedback message of the first message is used to indicate at least one of the following:
indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
25. A management apparatus characterized in that the management apparatus comprises: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to any one of claims 1 to 6.
26. A network device, wherein the network device enables a target user plane function, UPF, network element, the network device comprising:
a receiving module, configured to receive a first message sent by a first network element;
a configuration module, configured to configure tunnel information associated with a target VN group according to the first message;
The receiving module is further configured to receive a session establishment request sent by the first network element, where the session establishment request carries a target VN group identifier;
and the processing module is used for establishing a session for the terminal which lifts the session establishment request based on the tunnel information and the target VN group identification.
27. The network device of claim 26, wherein the configuration module performs the step of configuring tunnel information associated with the target VN group according to the first message at least one of:
enabling the VTEP function.
Configuring and establishing a tunnel associated with the target VN group;
the configuration creates the ports of the tunnel associated with the target VN group.
28. The network device of claim 26, further comprising a transmission module;
the sending module is configured to send a feedback message to the first network element, where the feedback message is used to indicate at least one of the following cases:
indicating that the VTEP function has been enabled;
indicating that a tunnel associated with the target VN group has been established;
indicating the port for which a tunnel associated with the target VN group has been created.
29. A network device, the network device comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to any one of claims 7 to 9.
30. A management device having a first network element operating therein, the management device comprising:
the receiving module is used for receiving a session release request sent by the terminal and determining a target VN group added for the terminal according to the session release request;
a sending module, configured to send a second message to a third target UPF or a fourth target UPF, where the second message is used to instruct the third target UPF or the fourth target UPF to delete tunnel information associated with a target VN group;
and/or the sending module sends a session release request to the fourth target UPF, for instructing the fourth target UPF to release the session requested to be released by the terminal.
31. The management device of claim 30, wherein,
the third target UPF is a UPF already currently serving the target VN group;
and/or the fourth target UPF is a UPF which is selected by the SMF according to the position information of the terminal and/or the accessed slice information and initiates a session service to be released for the terminal;
the third target UPF includes a fourth target UPF.
32. The management device of claim 30, wherein if the session to be released is not the only session of the target VN group in the fourth target UPF,
The sending module sends a second message to the fourth target UPF instructing the fourth target UPF to delete the port of the tunnel associated with the target VN group.
33. The management device of claim 31, wherein if the third target UPF includes two or more UPFs and the session to be released is the only session of the target VN group in the fourth target UPF,
the sending module sends a second message to a third target UPF, the second message instructing each of the third target UPFs to delete a tunnel associated with the target VN group and/or instructing each of the third target UPFs to delete a port of the tunnel associated with the target VN group.
34. The management device of claim 30, wherein if the third target UPF and the fourth target UPF are the same UPF and the session to be released is the only session of the target VN group in the fourth target UPF,
the sending module sends a second message to the third target UPF instructing the third target UPF to close the VTEP function and/or instructing the third target UPF to delete the port of the tunnel associated with the target VN group.
35. The management device of claim 30, wherein,
The receiving module is further configured to receive a feedback message for the second message, where the feedback message is used to indicate at least one of the following:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
36. A management apparatus characterized in that the management apparatus comprises: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of claims 10 to 15.
37. A network device, wherein the network device enables a target user plane function, UPF, network element, the network device comprising:
a receiving module, configured to receive a second message sent by the first network element;
the processing module is used for deleting the tunnel information associated with the target VN group according to the second message;
the processing module is further configured to release the session requested to be released by the terminal according to the session release request sent by the first network element.
38. The network device of claim 37, wherein the processing module performs, in accordance with the second message, at least one of the following steps of deleting tunnel information associated with the target VN group:
Closing the VTEP function;
deleting the tunnel associated with the target VN group;
the port of the tunnel associated with the target VN group is deleted.
39. The network device of claim 37, further comprising a transmitting module configured to transmit a feedback message to the first network element, the feedback message being configured to indicate at least one of:
indicating that the VTEP function has been turned off;
indicating that a tunnel associated with the target VN group has been deleted;
indicating that the port of the tunnel associated with the target VN group has been deleted.
40. A network device, the network device comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of claims 16 to 18.
41. A computer readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of claims 1 to 18.
CN202111666620.5A 2021-12-31 2021-12-31 VN group management method, VN group management equipment and network equipment Pending CN116419271A (en)

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