CN115396873B - Communication method, device, server and storage medium - Google Patents

Communication method, device, server and storage medium Download PDF

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Publication number
CN115396873B
CN115396873B CN202211014875.8A CN202211014875A CN115396873B CN 115396873 B CN115396873 B CN 115396873B CN 202211014875 A CN202211014875 A CN 202211014875A CN 115396873 B CN115396873 B CN 115396873B
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target
acquisition request
upf
data acquisition
network
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CN115396873A (en
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林琳
朱斌
王光全
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • 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
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a communication method, a device, a server and a storage medium, relates to the technical field of communication, and solves the technical problem that in the related art, a data acquisition request can reach a data network only through 5GC and the acquisition efficiency of service data can be possibly reduced. The method comprises the following steps: acquiring a shunting request and event information of UE; determining the target UPF and the identification of a preset VLAN according to the network identification of the target data network, the IP address of the target data network and the event information; sending a offloading policy to a NEF, where the offloading policy is used to instruct the target UPF to send a data acquisition request of the UE based on the preset VLAN; and sending the target data acquisition request to the target data network under the condition that the target data acquisition request is sent based on the preset VLAN.

Description

Communication method, device, server and storage medium
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communications method, an apparatus, a server, and a storage medium.
Background
Currently, the data network may receive a data acquisition request from a User Equipment (UE), and then return service data to the UE.
However, in the above method, the data acquisition request needs to pass through the 5G core network (5G core network,5GC) to reach the data network, which may reduce the efficiency of acquiring the service data.
Disclosure of Invention
The invention provides a communication method, a device, a server and a storage medium, which solve the technical problem that in the related art, a data acquisition request can reach a data network only through 5GC and the acquisition efficiency of service data can be reduced.
In a first aspect, the present invention provides a communication method comprising: acquiring a offloading request and event information of a UE, the offloading request including a network identification of a target data network and an internet protocol (internet protocol, IP) address of the target data network; determining the identity of a target user plane function (user plane function, UPF) and a preset virtual local area network (virtual local area network, VLAN) according to the network identity, the IP address and the event information, wherein the target UPF has a corresponding relation with the preset VLAN; sending a offloading policy to a capability openness function (network exposure function, NEF), where the offloading policy includes an identifier of the preset VLAN, and the offloading policy is used to instruct the target UPF to send, based on the preset VLAN, a data acquisition request of the UE, where the data acquisition request is used to request to acquire target service data; and under the condition that the target data acquisition request is sent based on the preset VLAN, sending the target data acquisition request to the target data network, wherein the target data acquisition request is the data acquisition request sent by the target UPF.
Optionally, determining the target UPF and the identifier of the preset VLAN according to the network identifier, the IP address, and the event information specifically includes: determining at least one UPF according to the network identifier and the IP address, wherein the at least one UPF comprises a UPF corresponding to the network identifier and a UPF corresponding to the IP address; determining the target UPF from the at least one UPF based on the event information; and determining the identifier of the preset VLAN based on the target UPF and a preset corresponding relation, wherein the preset corresponding relation comprises a plurality of UPFs and the identifier of the VLAN corresponding to each UPF in the plurality of UPFs.
Optionally, acquiring event information of the UE specifically includes: sending an event acquisition request to the NEF, wherein the event acquisition request comprises an identifier of the UE, and the event acquisition request is used for requesting to acquire event information of the UE; and receiving an event acquisition response sent by the NEF, wherein the event acquisition response comprises event information of the UE.
Optionally, the communication method further includes: and deleting the target data acquisition request in the case that the target data acquisition request is not sent based on the preset VLAN.
In a second aspect, the present invention provides a communication method comprising: acquiring a distribution strategy, wherein the distribution strategy comprises an identifier of a preset VLAN, the distribution strategy is used for indicating a target UPF to send a data acquisition request of UE (user equipment) based on the preset VLAN, the identifier of the preset VLAN is determined by satellite-to-ground distribution equipment according to a network identifier of a target data network, an IP (Internet protocol) address of the target data network and event information of the UE, and the data acquisition request is used for requesting to acquire target service data; and under the condition that the data acquisition request of the UE is received, transmitting the data acquisition request of the UE to the star-to-ground distribution equipment based on the preset VLAN.
In a third aspect, the present invention provides a communication apparatus comprising: the device comprises an acquisition module, a determination module and a sending module; the acquisition module is used for acquiring a distribution request and event information of the UE, wherein the distribution request comprises a network identifier of a target data network and an IP address of the target data network; the determining module is used for determining the target UPF and the identifier of a preset VLAN according to the network identifier, the IP address and the event information, wherein the target UPF has a corresponding relation with the preset VLAN; the sending module is configured to send a offloading policy to a capability openness function NEF, where the offloading policy includes an identifier of the preset VLAN, and the offloading policy is configured to instruct the target UPF to send, based on the preset VLAN, a data acquisition request of the UE, where the data acquisition request is used to request to acquire target service data; the sending module is further configured to send, when the target data acquisition request is sent based on the preset VLAN, the target data acquisition request to the target data network, where the target data acquisition request is a data acquisition request sent by the target UPF.
Optionally, the determining module is specifically configured to determine at least one UPF according to the network identifier and the IP address, where the at least one UPF includes a UPF corresponding to the network identifier and a UPF corresponding to the IP address; the determining module is specifically further configured to determine the target UPF from the at least one UPF based on the event information; the determining module is specifically further configured to determine an identifier of the preset VLAN based on the target UPF and a preset correspondence, where the preset correspondence includes a plurality of UPFs and identifiers of VLANs corresponding to each UPF of the plurality of UPFs.
Optionally, the communication device further includes: a receiving module; the sending module is further configured to send an event acquisition request to the NEF, where the event acquisition request includes an identifier of the UE, and the event acquisition request is used to request acquisition of event information of the UE; the receiving module is configured to receive an event acquisition response sent by the NEF, where the event acquisition response includes event information of the UE.
Optionally, the communication device further includes: deleting the module; the deleting module is configured to delete the target data acquisition request if the target data acquisition request is not sent based on the preset VLAN.
In a fourth aspect, the present invention provides a communication apparatus, including an acquisition module and a transmission module; the acquisition module is used for acquiring a distribution strategy, the distribution strategy comprises an identifier of a preset VLAN, the distribution strategy is used for indicating a target UPF to send a data acquisition request of UE based on the preset VLAN, the identifier of the preset VLAN is determined by satellite-to-ground distribution equipment according to a network identifier of a target data network, an IP address of the target data network and event information of the UE, and the data acquisition request is used for requesting to acquire target service data; the sending module is configured to send, when receiving the data acquisition request of the UE, the data acquisition request of the UE to the star-to-ground distribution device based on the preset VLAN.
In a fifth aspect, the present invention provides a server comprising: a processor and a memory configured to store processor-executable instructions; wherein the processor is configured to execute the instructions to implement any of the alternative communication methods of the first aspect described above, or to implement any of the alternative communication methods of the second aspect described above.
In a sixth aspect, the present invention provides a computer readable storage medium having instructions stored thereon which, when executed by a server, enable the server to perform any one of the alternative communication methods of the first aspect or any one of the alternative communication methods of the second aspect.
According to the communication method, the device, the server and the storage medium, the satellite-to-ground shunting equipment can acquire the shunting request and the event information of the UE, and the identification of the target UPF and the preset VLAN is determined according to the network identification of the target data network, the IP address of the target data network and the event information contained in the shunting request; the star-to-ground splitting device may then send a splitting policy to the NEF; when the target data acquisition request (i.e., the data acquisition request sent by the target UPF) is sent based on the preset VLAN, it is indicated that the target data acquisition request is a data acquisition request of the UE, and at this time, the star-to-ground distribution device may send the target data acquisition request to the target data network, so that the UE may acquire the target service data from the target data network. In the invention, because the offloading policy is used for indicating the target UPF to send the data acquisition request of the UE based on the preset VLAN, after the target UPF acquires the data acquisition request of the UE, the target UPF can send the data acquisition request to the satellite-to-ground offloading device based on the preset VLAN, and the satellite-to-ground offloading device can send the data acquisition request to the target data network. Namely, the data acquisition request of the UE does not need to pass through 5GC, can directly reach the target data network through a specific VLAN (namely a preset VLAN) and the satellite-to-ground distribution equipment, so that the acquisition efficiency of service data can be improved, and the effectiveness of a communication process can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic diagram of a network architecture of a communication system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a network architecture of another communication system according to an embodiment of the present invention;
Fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present invention;
fig. 4 is a flow chart of another communication method according to an embodiment of the present invention;
fig. 5 is a flow chart of another communication method according to an embodiment of the present invention;
fig. 6 is a flow chart of another communication method according to an embodiment of the present invention;
Fig. 7 is a flow chart of another communication method according to an embodiment of the present invention;
Fig. 8 is a flow chart of another communication method according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another communication device according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another communication device according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of another communication device according to an embodiment of the present invention.
Detailed Description
The following describes in detail a communication method, a device, a server, and a storage medium provided in an embodiment of the present invention with reference to the accompanying drawings.
Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present invention is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The term "and/or" as used herein includes the use of either or both of these methods.
In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.
Based on the description in the background art, in the related art, the data acquisition request needs to reach the data network through 5GC, which may reduce the efficiency of acquiring the service data. Based on this, the embodiment of the invention provides a communication method, a device, a server and a storage medium, because a offloading policy is used to instruct a target UPF to send a data acquisition request of a UE based on a preset VLAN, after the target UPF acquires the data acquisition request of the UE, the target UPF may send the data acquisition request to an star-to-ground offloading device based on the preset VLAN, and further the star-to-ground offloading device may send the data acquisition request to a target data network. Namely, the data acquisition request of the UE does not need to pass through 5GC, can directly reach the target data network through a specific VLAN (namely a preset VLAN) and the satellite-to-ground distribution equipment, so that the acquisition efficiency of service data can be improved, and the effectiveness of a communication process can be improved.
The communication method, the device, the server and the storage medium provided by the embodiment of the invention can be applied to a communication system. As shown in fig. 1, the communication system includes a UE 101, a radio access network (radio access network, RAN) device or Access Network (AN) device 102, a UPF 103, AN access and mobility management function (ACCESS AND mobility management function, AMF) 104, a session management function (session management function, SMF) 105, a policy control function (policy control function, PCF) 106, AN authentication service function (authentication server function, AUSF) 107, a network function storage function (network function repository function, NRF) 108, AN application function (application function, AF) 109, a NEF 10, a unified data management (unified DATA MANAGEMENT, UDM) 111, and a network slice selection function (network slice selection function, NSSF) 112, etc. The UE 101 accesses a 5G network (i.e., it is understood that the UE 101 accesses a 5G system that can provide a 5G network) and establishes a session with the network, and then the UE 101 can communicate with functions (e.g., UPF 103, AMF 104, etc.) serving the UE 101 through the (R) AN device 102. In general, in practical applications, the connection between the above-mentioned devices or service functions may be a wireless connection, and for convenience and intuitiveness, the connection relationship between the devices is schematically shown by a solid line in fig. 1.
Wherein the (R) AN device 102 is used for UE 101 to access a network, the (R) AN device 102 may include a base station, AN evolved base station (evolved node base station, eNB), a next generation base station (next generation node base station, gNB), a new radio base station (new radio eNB), a macro base station, a micro base station, a high frequency base station or transmission and reception point (transmission and reception point, TRP), a non-third generation partnership project (3rd generation partnership project,3GPP) access network (e.g., wiFi), and/or a non-3GPP interworking function (non-3GPP interworking function,N3IWF), among other devices.
UPF 103: for handling events related to the user plane such as transmitting or routing data packets, detecting data packets, reporting traffic, handling quality of service (quality of service, qoS), lawful interception, storing downstream data packets, etc. In the embodiment of the present invention, the UPF 103 may acquire the offloading policy and send a data acquisition request of the UE 101 based on a preset VLAN.
AMF 104: for connection management, mobility relation, registration management, access authentication and authorization, reachability management, security context management, etc.
SMF 105: for session management (e.g., session establishment, modification, and release), selection and control of UPF 103, selection of traffic and session continuity (SERVICE AND session continuity) modes, roaming services, and so forth.
PCF 106: is used for making strategies, providing strategy control services, acquiring strategy decision-related subscription information and the like. In an embodiment of the present invention, PCF 108 may receive the offloading policy sent by NEF 110 and send the offloading policy to UPF 103.
AUSF 107,107: for interacting with the UDM 111 to obtain user information and to perform authentication related functions, such as generating intermediate keys, etc.
NRF 108: network function text for service discovery, maintenance of examples of available network functions, and services supported by these network functions.
AF 109: interact with the 3GPP core network to provide services or servers, e.g., can interact with the NEF 110.
NEF 110: the security opens various services and capabilities provided by 3GPP network functions (including content opening or third party opening, etc.), translates or translates information interacted with AF 109 and internal network functions, such as AF service identification and content 5G core network information (e.g., network slice selection assistance information, etc.), etc. In an embodiment of the present invention, NEF 110 may receive a offloading policy sent by a satellite-to-ground offloading device (not shown in the figure) and send the offloading policy to PCF 106.
UDM 111: processing authentication information in a 3GPP authentication and key agreement mechanism, processing user identity information, access authorization, registration and mobility management, subscription management, short message management and the like.
NSSF 112,112: for selecting a set of network slices for the UE 101, determining network slice selection protocol information, and determining a set of AMFs for serving the UE 101 (an AMF set refers to a set of multiple AMFs that may be serving the UE 101).
Alternatively, each of the above functional modules (i.e., UPF 103, AMF 104, SMF 105, PCF 106, AUSF, NRF 108, AF 109, NEF110, UDM 111, and NSSF) may be integrated on a server to implement the functions thereof.
In conjunction with fig. 1, as shown in fig. 2, in AN embodiment of the present invention, a UPF (i.e., UPF 203) with a submerged function may be deployed in AN access network, and a star-to-earth splitting device 205 may be deployed between the UPF 203 and a data network (i.e., data network 206), and specifically, a UE 201, (R) AN device 202, and a NEF 204 may be further included in the communication system shown in fig. 2.
Wherein the (R) AN device 202 may receive the data acquisition request sent by the UE 201 and send the data acquisition request to the UPF 203.
The UPF 203 may acquire a offloading policy and execute the offloading policy, specifically, send a data acquisition request of the UE based on a preset VLAN.
The NEF 204 may receive the offloading policy sent by the star-to-ground offloading device 205.
The star-to-ground forking device 205 may obtain the forking request and event information for the UE and determine the identity of the target UPF (e.g., UPF 203) and the preset VLAN based on the network identity of the data network 206, the IP address of the data network 206, and the event information. In the embodiment of the present invention, in the case that the target data acquisition request is sent based on the preset VLAN, the star-to-ground distribution device 205 may also send the target data acquisition request to a target data network (for example, the data network 206), and then the data network 206 may send (or return) the target service data to the star-to-ground distribution device 205.
In fig. 2, 1 UE, 1 (R) AN device, 1 UPF, 1 NEF, 1 star-to-ground split device, and 1 data network are shown. The number of the respective devices shown in fig. 2 is not particularly limited in the embodiment of the present invention.
The communication method, the device, the server and the storage medium provided by the embodiment of the invention are applied to a scene that the UE acquires service data. Specifically, after the star-to-ground shunting device acquires the shunting request and the event information of the UE, a shunting policy may be sent to the NEF, so that the target UPF may acquire the shunting policy, where the shunting policy is used to instruct the target UPF to send the data acquisition request of the UE based on a preset VLAN. When the target UPF receives the data acquisition request of the UE, the data acquisition request of the UE may be sent to the star-to-ground splitting device based on the preset VLAN, so that the star-to-ground splitting device may send the data acquisition request to the target data network, and further the UE may acquire the target service data from the target data network.
As shown in fig. 3, when the communication method provided by the embodiment of the present invention is applied to the above-described satellite-to-ground shunt apparatus 201 shown in fig. 2, the communication method may include S101-S104.
S101, the satellite-to-ground distribution equipment acquires distribution requests and event information of the UE.
Wherein the offload request includes a network identification of the target data network and an IP address of the target data network.
Specifically, the offloading request is used to request offloading (or sending) of the data acquisition request of the UE to the satellite-to-ground offloading device.
In an alternative implementation, the splitting request may be sent by a mobile edge computing (mobile edge computing, MEC) orchestration device, i.e., a satellite-to-ground splitting device may receive the splitting request sent by the MEC orchestration device.
In an implementation manner of the embodiment of the present invention, the event information of the UE may include location information of the UE, communication quality of the UE, and an online status of the UE.
Optionally, the star-to-ground shunting device may include an N33 interface, and the star-to-ground shunting device may acquire event information of the UE based on the N33 interface.
S102, the star-to-ground distribution equipment determines the identification of the target UPF and the preset VLAN according to the network identification of the target data network, the IP address of the target data network and the event information of the UE.
Wherein, the target UPF has a corresponding relation with the preset VLAN.
In one implementation manner of the embodiment of the present invention, after acquiring the network identifier of the target network, the IP address of the target network, and the event information of the UE, the star-to-earth distribution device may determine at least one UPF corresponding to the network identifier and/or the IP address, and determine the target UPF from the at least one UPF based on the event information of the UE; then, the star-to-ground split device can determine the VLAN corresponding to the target UPF as the preset VLAN, so that the star-to-ground split device can obtain the identifier of the preset VLAN.
S103, the satellite-ground shunting equipment sends a shunting strategy to the NEF.
The offloading policy includes the identifier of the preset VLAN, where the offloading policy is used to instruct the target UPF to send, based on the preset VLAN, a data acquisition request of the UE, where the data acquisition request is used to request to acquire target service data.
It should be appreciated that after determining the target UPF and the identity of the preset VLAN, the star-to-ground splitting device may encapsulate the identity of the preset VLAN to generate the splitting policy, and then the star-to-ground splitting device may send the splitting policy to the NEF.
In an optional implementation manner, the data acquisition request of the UE may include a service identifier of a target service, so that the target service data is service data of the target service, that is, the data acquisition request is used for requesting to acquire service data of the target service.
In an implementation manner of the embodiment of the present invention, after the NEF acquires the splitting policy, the splitting policy may be sent out, and then the target UPF may acquire and execute the splitting policy. Specifically, the method can comprise the following steps A-E.
Step A, NEF receives the split strategy sent by the satellite-to-ground split device.
In connection with the above description of the embodiments, it should be understood that the offloading policy includes an identifier of a preset VLAN, where the offloading policy is used to instruct the target UPF to send a data acquisition request of the UE based on the preset VLAN.
Step B, NEF sends the split policy to the PCF.
Step C, PCF receives the splitting policy sent by the NEF.
Step D, PCF sends the offload policy to the target UPF.
And E, receiving the shunting strategy sent by the SMF by the target UPF.
To this end, the target UPF may acquire the split policy.
In an alternative implementation, the PCF may also send the split policy to the SMF.
Optionally, the star-to-ground splitting device may send the splitting policy to the NEF based on the N33 interface described above.
And S104, under the condition that the target data acquisition request is sent based on a preset VLAN, the star-to-ground distribution equipment sends the target data acquisition request to a target data network.
The target data acquisition request is a data acquisition request sent by the target UPF.
In connection with the description of the above embodiments, it should be understood that the target UPF may offload (or send) the data acquisition request of the UE to the star-to-earth offload device after acquiring the offload policy described above.
In the embodiment of the invention, the satellite-to-ground distribution device can determine whether the target data acquisition request is a data acquisition request of the UE by determining whether the target data acquisition request is a data acquisition request sent based on the preset VLAN. Specifically, in the case where the target data acquisition request is sent based on the preset VLAN, it is indicated that the target data acquisition request is a target data acquisition request of the UE, and at this time, the star-to-ground distribution device may send the target data acquisition request to the above-mentioned target data network. Specifically, the network identifier corresponds to a data network and/or the IP address corresponds to a data network.
In an alternative implementation, the target data network may correspond to a server (or a server cluster). The above-mentioned star-to-ground distribution device sending the target data acquisition request to the target data network may be understood as the star-to-ground distribution device sending the target data acquisition request to the server. Furthermore, after receiving the target data acquisition request, the server may determine target service data based on the service identifier of the target service included in the target data acquisition request, and return the target service data to the satellite-to-ground distribution device, so that the UE may acquire the target service data.
In the embodiment of the present invention, after determining the target service data, the server may send a data acquisition response to the satellite-to-ground distribution device, where the data acquisition response includes the target service data; then the star-to-ground shunt equipment can send the data acquisition response to the target UPF based on the preset VLAN; the target UPF may send the data acquisition response to the UE through the (R) AN device described above after receiving the data acquisition response. So far, the UE may acquire the target service data.
Optionally, the star-to-ground shunting device may store a first correspondence, where the first correspondence includes network identifiers of a plurality of data networks and identifiers of VLANs corresponding to the network identifiers of each of the plurality of data networks. And the star-to-ground distribution equipment can determine the network identification of the target data network based on the identification of the preset VLAN and the first corresponding relation and send the target data acquisition request to the target data network under the condition that the target data acquisition request is determined to be sent based on the preset VLAN.
The technical scheme provided by the embodiment at least has the following beneficial effects: S101-S104, the satellite-to-ground shunting equipment can acquire a shunting request and event information of UE, and determines the identification of a target UPF and a preset VLAN according to the network identification of a target data network, the IP address of the target data network and the event information contained in the shunting request; the star-to-ground splitting device may then send a splitting policy to the NEF; when the target data acquisition request (i.e., the data acquisition request sent by the target UPF) is sent based on the preset VLAN, it is indicated that the target data acquisition request is a data acquisition request of the UE, and at this time, the star-to-ground distribution device may send the target data acquisition request to the target data network, so that the UE may acquire the target service data from the target data network. In the embodiment of the present invention, since the offloading policy is used to instruct the target UPF to send the data acquisition request of the UE based on the preset VLAN, after the target UPF acquires the data acquisition request of the UE, the target UPF may send the data acquisition request to the satellite-to-ground offloading device based on the preset VLAN, and further the satellite-to-ground offloading device may send the data acquisition request to the target data network. Namely, the data acquisition request of the UE does not need to pass through 5GC, can directly reach the target data network through a specific VLAN (namely a preset VLAN) and the satellite-to-ground distribution equipment, so that the acquisition efficiency of service data can be improved, and the effectiveness of a communication process can be improved.
Referring to fig. 3, as shown in fig. 4, in an implementation manner of the embodiment of the present invention, the determining, by the satellite-to-ground splitting device, the target UPF and the identifier of the preset VLAN according to the network identifier of the target data network, the IP address of the target data network, and the event information of the UE may specifically include S1021-S1023.
S1021, the satellite-to-ground distribution equipment determines at least one UPF according to the network identification of the target data network and the IP address of the target data network.
The at least one UPF includes a UPF corresponding to the network identifier and a UPF corresponding to the IP address.
It should be appreciated that one network identity may correspond to one or more UPFs and that one or more UPFs corresponding to the network identity of the target data network may be understood as the first set of UPFs. One IP address may also correspond to one or more UPFs, and one or more UPFs corresponding to the IP address of the target data network may be understood as a second set of UPFs. In the embodiment of the present invention, the star-to-ground split device may determine the union of the first set of UPFs and the second set of UPFs as the at least one UPF.
In an alternative implementation, the star-to-ground splitting device may further determine one or more UPFs (i.e., the first set of UPFs) corresponding to the network identifier of the target data network as at least one UPF.
In another alternative implementation, the star-to-ground splitting device may further determine one or more UPFs (i.e., the second set of UPFs) corresponding to the IP address of the target data network as at least one UPF.
In another alternative implementation, the star-to-ground splitting device may also determine, as at least one UPF, an intersection of the first set of UPFs and the second set of UPFs (which may be understood as a UPF corresponding to both the network identifier and the IP address.
S1022, the satellite-to-ground distribution equipment determines a target UPF from at least one UPF based on event information of the UE.
It can be appreciated that after determining the at least one UPF, the star-to-ground splitting device may determine, based on the event information, a preferred UPF from the at least one UPF, where the preferred UPF is a UPF with smaller communication delay and higher communication quality, and the preferred UPF is the target UPF.
In an alternative implementation, when the event information of the UE includes the location information of the UE, the star-to-ground split device may determine location information of each of the at least one UPF and determine a distance between the location information of each UPF and the location information of the UE; the star-to-ground split device may then determine a UPF corresponding to location information having a smallest distance between location information of the UE as the target UPF.
S1023, the star-to-ground shunt equipment determines the identification of the preset VLAN based on the target UPF and the preset corresponding relation.
The preset corresponding relation comprises a plurality of UPFs and VLAN identifiers corresponding to each UPF in the plurality of UPFs.
For example, table 1 below is an example of a preset correspondence provided in an embodiment of the present invention. As shown in table 1, the preset relationship corresponds to 3 UPFs (i.e., UPF1, UPF2, and UPF 3) and 6 VLAN identifiers. Specifically, the identifier of the VLAN corresponding to the UPF1 includes an identifier 1, the identifier of the VLAN corresponding to the UPF2 includes an identifier 1, an identifier 2 and an identifier 3, and the identifier of the VLAN corresponding to the UPF3 includes an identifier 4 and an identifier 5.
TABLE 1
UPF VLAN identification corresponding to UPF
UPF1 Sign 1
UPF2 Sign 1, sign 2, sign 3
UPF3 Sign 4, sign 5
Assuming that the target UPF is UPF2, the star-to-ground split device may determine that the identifier of the preset VLAN includes an identifier 1, an identifier 2, and an identifier 3.
It should be noted that the number of the preset VLAN identifiers may be one or more, and the number of the preset VLAN identifiers is not particularly limited in the embodiment of the present invention.
Referring to fig. 3, as shown in fig. 5, in an implementation manner of the embodiment of the present invention, the satellite-to-ground shunting device obtains event information of the UE, which may specifically include S1011-S1012.
S1011, the satellite-ground shunt equipment sends an event acquisition request to the NEF.
Wherein the event acquisition request includes an identification of the UE, and the event acquisition request is used for requesting acquisition of event information of the UE.
Step F, NEF receives an event acquisition request sent by the star-to-ground split device.
Step G, NEF sends an event acquisition response to the star floor split device.
Wherein the event acquisition response includes event information of the UE.
It should be appreciated that upon receiving the above-described event acquisition request, the NEF may determine event information for the UE according to the identity of the UE included in the event acquisition request, and send the event acquisition response to the star-to-ground split device.
S1012, the satellite-ground shunt equipment receives an event acquisition response sent by the NEF.
Thus, the satellite-to-ground distribution device can acquire the event information of the UE.
It may be understood that S1011-S1012 are steps executed by the satellite-to-ground shunting device, specifically, a specific process of the satellite-to-ground shunting device obtaining event information of the UE. The steps F-G are execution steps of the NEF, and specifically, the NEF sends event information of the UE to the satellite-to-ground distribution equipment.
Referring to fig. 3, as shown in fig. 6, the communication method provided in the embodiment of the present invention further includes S105.
S105, in the case that the target data acquisition request is not sent based on a preset VLAN, the star-to-ground distribution equipment deletes the target data acquisition request.
In connection with the above description of the embodiments, it should be understood that the star-to-ground split device may determine whether the target data acquisition request is a data acquisition request of the UE by determining whether the target data acquisition request is a data acquisition request transmitted based on the preset VLAN. Specifically, in the case where the target data acquisition request is not sent based on the preset VLAN, it is indicated that the target data acquisition request is not a target data acquisition request of the UE, and at this time, the satellite-to-ground distribution device may delete the target data acquisition request.
In the embodiment of the invention, the satellite-to-ground shunting equipment can delete the target data acquisition request under the condition that the target data acquisition request is not the data acquisition request of the UE, so that the communication pressure of the satellite-to-ground shunting equipment can be reduced, and the communication effectiveness is improved.
As shown in fig. 7, when the communication method provided by the embodiment of the present invention is applied to the UPF 203 shown in fig. 2, the method further includes S201 to S202.
S201, the target UPF acquires a shunt strategy.
The offloading policy includes an identifier of a preset VLAN, where the offloading policy is used to instruct the target UPF to send a data acquisition request of the UE based on the preset VLAN, where the identifier of the preset VLAN is determined by the satellite-to-ground offloading device according to a network identifier of a target data network, an IP address of the target data network, and event information of the UE, and the data acquisition request is used to request to acquire target service data.
In connection with the description of the above embodiments, it should be understood that a star-to-ground splitting device may send the splitting policy to a NEF that sends the splitting policy to a PCF after receiving the splitting policy, and that the PCF sends the splitting policy to the target UPF after receiving the splitting policy. To this end, the target UPF may acquire the target UPF.
S202, under the condition that a data acquisition request of the UE is received, the target UPF sends the data acquisition request of the UE to the satellite-to-ground distribution equipment based on a preset VLAN.
In connection with the above description of the embodiments, it should be understood that, since the offloading policy is used to instruct the target UPF to send a data acquisition request of the UE based on the preset VLAN, in case that the data acquisition request of the UE is received, the target UPF may execute the offloading policy, that is, send (specifically, send to the star-to-ground offloading device) the data acquisition request of the UE based on the preset VLAN. And the satellite-ground distribution equipment can send a data acquisition request of the UE to the target data network, namely the UE can acquire target service data from the target data network.
As shown in fig. 8, a communication method provided by an embodiment of the present invention is described below in a manner in which each device shown in fig. 2 interacts.
S301, the satellite-to-ground distribution equipment acquires a satellite-to-ground distribution request and event information of the UE.
Wherein the star-to-ground split request includes a network identification of a target data network and an IP address of the target data network.
S302, the star-to-ground distribution equipment determines the identification of the target UPF and the preset VLAN according to the network identification of the target data network, the IP address of the target data network and the event information.
S303, the satellite-ground shunting equipment sends a shunting strategy to the NEF.
The offloading policy includes an identifier of the preset VLAN, where the offloading policy is used to instruct the target UPF to send a data acquisition request of the UE based on the preset VLAN.
S304, the NEF receives a shunting strategy sent by the satellite-to-ground shunting equipment.
S305, the NEF sends the splitting policy to the PCF.
S306, the PCF receives the distribution strategy sent by the NEF.
S307, PCF sends the shunt strategy to UPF.
S308, the UPF receives the diversion strategy sent by the PCF.
In combination with the foregoing embodiment, it should be understood that the offloading policy includes an identifier of a preset VLAN, where the offloading policy is used to instruct the target UPF to send, based on the preset VLAN, a data acquisition request of the UE.
S309, UPF acquires a data acquisition request of the UE.
Specifically, the UE may send the data acquisition request to the (R) AN device, and then the (R) AN device may send the data acquisition request to the UPF after receiving the data acquisition request.
S310, the UPF sends a target data acquisition request to the star-to-ground distribution equipment based on a preset VLAN.
S311, the satellite-ground distribution equipment receives a target data acquisition request sent by the UPF.
S312, the satellite-to-ground distribution equipment sends the target data acquisition request to a target data network.
It may be appreciated that, after receiving the target data acquisition request, the target data network may determine service data of the target service (i.e. target service data) based on the service identifier of the target service included in the target data acquisition request; the target data network may then return (i.e., send) a data acquisition response to the star-to-ground distribution device, the data acquisition response including the target traffic data; the star-to-ground split device may send the data acquisition response to the target UPF after receiving the data acquisition response; the target UPF, upon receiving the data acquisition response, may send the data acquisition response to the (R) AN device and send the data acquisition response to the UE via the (R) AN device. So far, the UE may acquire the target service data.
It should be noted that the explanation in S301 to S312 is the same as or similar to the explanation in the above embodiment, and will not be repeated here.
In the embodiment of the invention, the satellite-to-ground shunting equipment can acquire the shunting request and the event information of the UE, and determine the identification of a target UPF and a preset VLAN according to the network identification of the target data network, the IP address of the target data network and the event information contained in the shunting request; the star-to-ground splitting device may then send a splitting policy to the NEF; the NEF can send the distribution strategy to the PCF after receiving the distribution strategy, and the PCF can send the distribution strategy to a target UPF, so that the target UPF can acquire the distribution strategy; in the case that the target UPF receives the data acquisition request of the UE, the target UPF may send the data acquisition request to the star-to-ground split device based on the preset VLAN, and after receiving the data acquisition request, the star-to-ground split device may send the data acquisition request to the target data network, so that the UE may acquire target service data from the target data network. In the invention, because the offloading policy is used for indicating the target UPF to send the data acquisition request of the UE based on the preset VLAN, after the target UPF acquires the data acquisition request of the UE, the target UPF can send the data acquisition request to the satellite-to-ground offloading device based on the preset VLAN, and the satellite-to-ground offloading device can send the data acquisition request to the target data network. Namely, the data acquisition request of the UE does not need to pass through 5GC, can directly reach the target data network through a specific VLAN (namely a preset VLAN) and the satellite-to-ground distribution equipment, so that the acquisition efficiency of service data can be improved, and the effectiveness of a communication process can be improved.
The embodiment of the invention can divide the functional modules of the server and the like according to the method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present invention, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.
In the case of dividing the respective functional modules with the respective functions, fig. 9 shows a schematic diagram of one possible configuration of the communication apparatus involved in the above-described embodiment, and as shown in fig. 9, the communication apparatus 30 may include: an acquisition module 301, a determination module 302 and a transmission module 303.
An obtaining module 301, configured to obtain a offloading request and event information of a UE, where the offloading request includes a network identifier of a target data network and an IP address of the target data network;
the determining module 302 is configured to determine, according to the network identifier, the IP address, and the event information, an identifier of a target UPF and a preset VLAN, where the target UPF has a corresponding relationship with the preset VLAN.
The sending module 303 is configured to send a offloading policy to the capability openness function NEF, where the offloading policy includes an identifier of the preset VLAN, and the offloading policy is used to instruct the target UPF to send, based on the preset VLAN, a data acquisition request of the UE, where the data acquisition request is used to request to acquire target service data.
The sending module 303 is further configured to send, if the target data acquisition request is sent based on the preset VLAN, the target data acquisition request to the target data network, where the target data acquisition request is a data acquisition request sent by the target UPF.
Optionally, the determining module 302 is specifically configured to determine at least one UPF according to the network identifier and the IP address, where the at least one UPF includes a UPF corresponding to the network identifier and a UPF corresponding to the IP address.
The determining module 302 is specifically further configured to determine the target UPF from the at least one UPF based on the event information.
The determining module 302 is specifically further configured to determine, based on the target UPF and a preset correspondence, an identifier of the preset VLAN, where the preset correspondence includes a plurality of UPFs and identifiers of VLANs corresponding to each UPF of the plurality of UPFs.
Optionally, the communication device further includes a receiving module 304.
The sending module 303 is further configured to send an event acquisition request to the NEF, where the event acquisition request includes an identifier of the UE, and the event acquisition request is used to request to acquire event information of the UE.
A receiving module 304, configured to receive an event acquisition response sent by the NEF, where the event acquisition response includes event information of the UE.
Optionally, the communication device further includes a deletion module 305.
The deleting module 305 is configured to delete the target data acquisition request if the target data acquisition request is not sent based on the preset VLAN.
In the case of an integrated unit, fig. 10 shows a schematic diagram of one possible configuration of the communication device involved in the above-described embodiment. As shown in fig. 10, the communication device 40 may include: a processing module 401 and a communication module 402. The processing module 401 may be used to control and manage the actions of the communication device 40. The communication module 402 may be used to support communication of the communication device 40 with other entities. Optionally, as shown in fig. 10, the communication device 40 may further comprise a storage module 403 for storing program code and data of the communication device 40.
Wherein the processing module 401 may be a processor or a controller. The communication module 402 may be a transceiver, a transceiver circuit, a communication interface, or the like. The memory module 403 may be a memory.
When the processing module 401 is a processor, the communication module 402 is a transceiver, and the storage module 403 is a memory, the processor, the transceiver, and the memory may be connected through a bus. The bus may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus, or an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The buses may be divided into address buses, data buses, control buses, etc.
In the case of dividing the respective functional modules with the respective functions, fig. 11 shows a schematic diagram of one possible configuration of the communication apparatus involved in the above-described embodiment, and as shown in fig. 11, the communication apparatus 50 may include: an acquisition module 501 and a transmission module 502.
The obtaining module 501 is configured to obtain a offloading policy, where the offloading policy includes an identifier of a preset VLAN, where the offloading policy is used to instruct a target UPF to send a data obtaining request of a UE based on the preset VLAN, where the identifier of the preset VLAN is determined by a star-to-ground offloading device according to a network identifier of a target data network, an IP address of the target data network, and event information of the UE, and the data obtaining request is used to request to obtain target service data.
And the sending module 502 is configured to send, when receiving the data acquisition request of the UE, the data acquisition request of the UE to the star-to-ground distribution device based on the preset VLAN.
In the case of an integrated unit, fig. 12 shows a schematic diagram of one possible configuration of the communication device involved in the above-described embodiment. As shown in fig. 12, the communication device 60 may include: a processing module 601 and a communication module 602. The processing module 601 may be used to control and manage the actions of the communication device 60. The communication module 602 may be used to support communication of the communication device 60 with other entities. Optionally, as shown in fig. 12, the communication device 60 may further comprise a storage module 603 for storing program code and data of the communication device 60.
Wherein the processing module 601 may be a processor or a controller. The communication module 602 may be a transceiver, a transceiver circuit, a communication interface, or the like. The memory module 603 may be a memory.
When the processing module 601 is a processor, the communication module 602 is a transceiver, and the storage module 603 is a memory, the processor, the transceiver and the memory may be connected through a bus. The bus may be a PCI bus or an EISA bus, etc. The buses may be divided into address buses, data buses, control buses, etc.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber terminal line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk (Solid STATE DISK, SSD)), etc.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (12)

1. A communication method applied to a star-to-ground shunt apparatus, the method comprising:
Acquiring a distribution request and event information of User Equipment (UE), wherein the distribution request comprises a network identifier of a target data network and an Internet Protocol (IP) address of the target data network;
determining the target user plane function UPF and the identifier of a preset virtual local area network VLAN according to the network identifier, the IP address and the event information, wherein the target UPF has a corresponding relation with the preset VLAN;
Sending a distribution strategy to a capability opening function (NEF), wherein the distribution strategy comprises an identifier of the preset VLAN, the distribution strategy is used for indicating the target UPF to send a data acquisition request of the UE based on the preset VLAN, and the data acquisition request is used for requesting to acquire target service data;
And under the condition that the target data acquisition request is sent based on the preset VLAN, sending the target data acquisition request to the target data network, wherein the target data acquisition request is the data acquisition request sent by the target UPF.
2. The communication method according to claim 1, wherein determining the target UPF and the identification of the preset VLAN according to the network identification, the IP address, and the event information comprises:
determining at least one UPF according to the network identifier and the IP address, wherein the at least one UPF comprises a UPF corresponding to the network identifier and a UPF corresponding to the IP address;
Determining the target UPF from the at least one UPF based on the event information;
And determining the identifier of the preset VLAN based on the target UPF and a preset corresponding relation, wherein the preset corresponding relation comprises a plurality of UPFs and identifiers of VLANs corresponding to each UPF in the plurality of UPFs.
3. The communication method according to claim 1, wherein acquiring event information of the UE comprises:
sending an event acquisition request to the NEF, wherein the event acquisition request comprises an identifier of the UE, and the event acquisition request is used for requesting to acquire event information of the UE;
And receiving an event acquisition response sent by the NEF, wherein the event acquisition response comprises event information of the UE.
4. A communication method according to any of claims 1-3, characterized in that the method further comprises:
And deleting the target data acquisition request under the condition that the target data acquisition request is not sent based on the preset VLAN.
5. A communication method applied to a target user plane function UPF, the method comprising:
Acquiring a distribution strategy, wherein the distribution strategy comprises an identifier of a preset Virtual Local Area Network (VLAN), the distribution strategy is used for indicating a target UPF to send a data acquisition request of User Equipment (UE) based on the preset VLAN, the identifier of the preset VLAN is determined by star-ground distribution equipment according to a network identifier of a target data network, an Internet Protocol (IP) address of the target data network and event information of the UE, and the data acquisition request is used for requesting to acquire target service data;
And under the condition that the data acquisition request of the UE is received, transmitting the data acquisition request of the UE to the satellite-to-ground distribution equipment based on the preset VLAN, so that the satellite-to-ground distribution equipment transmits the data acquisition request of the UE to the target data network.
6. A communication device, comprising: the device comprises an acquisition module, a determination module and a sending module;
The acquisition module is configured to acquire a offloading request and event information of a user equipment UE, where the offloading request includes a network identifier of a target data network and an internet protocol IP address of the target data network;
the determining module is configured to determine, according to the network identifier, the IP address, and the event information, a target user plane function UPF and an identifier of a preset virtual local area network VLAN, where the target UPF has a corresponding relationship with the preset VLAN;
The sending module is configured to send a offloading policy to a capability openness function NEF, where the offloading policy includes an identifier of the preset VLAN, and the offloading policy is configured to instruct the target UPF to send, based on the preset VLAN, a data acquisition request of the UE, where the data acquisition request is used to request acquisition of target service data;
The sending module is further configured to send, when the target data acquisition request is sent based on the preset VLAN, the target data acquisition request to the target data network, where the target data acquisition request is a data acquisition request sent by the target UPF.
7. The communication device of claim 6, wherein the communication device comprises a communication device,
The determining module is specifically configured to determine at least one UPF according to the network identifier and the IP address, where the at least one UPF includes a UPF corresponding to the network identifier and a UPF corresponding to the IP address;
The determining module is specifically further configured to determine, based on the event information, the target UPF from the at least one UPF;
The determining module is specifically further configured to determine, based on the target UPF and a preset correspondence, an identifier of the preset VLAN, where the preset correspondence includes a plurality of UPFs and identifiers of VLANs corresponding to each UPF of the plurality of UPFs.
8. The communication device of claim 6, further comprising a receiving module;
The sending module is further configured to send an event acquisition request to the NEF, where the event acquisition request includes an identifier of the UE, and the event acquisition request is used to request acquisition of event information of the UE;
the receiving module is configured to receive an event acquisition response sent by the NEF, where the event acquisition response includes event information of the UE.
9. The communication device according to any one of claims 6-8, further comprising a deletion module;
The deleting module is configured to delete the target data acquisition request if the target data acquisition request is not sent based on the preset VLAN.
10. A communication device, comprising: an acquisition module and a transmission module;
The acquisition module is configured to acquire a offloading policy, where the offloading policy includes an identifier of a preset virtual local area network VLAN, the offloading policy is configured to instruct a target user plane function UPF to send a data acquisition request of a user equipment UE based on the preset VLAN, the identifier of the preset VLAN is determined by a satellite-to-ground offloading device according to a network identifier of a target data network, an internet protocol IP address of the target data network, and event information of the UE, and the data acquisition request is used to request acquisition of target service data;
The sending module is configured to send, when receiving the data acquisition request of the UE, the data acquisition request of the UE to the star-to-ground distribution device based on the preset VLAN, so that the star-to-ground distribution device sends the data acquisition request of the UE to the target data network.
11. A server, the server comprising:
A processor;
A memory configured to store the processor-executable instructions;
wherein the processor is configured to execute the instructions to implement the communication method of any one of claims 1-4 or to implement the communication method of claim 5.
12. A computer readable storage medium having instructions stored thereon, which, when executed by a server, enable the server to perform the communication method of any one of claims 1-4 or the communication method of claim 5.
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5G流量卸载方案与典型场景分析;郑巍;邓海荧;;通讯世界;20200125(第01期);全文 *
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Huawei, HiSilicon.S2-174435 "TS23.501: Align PDU session establishment with AF influence on traffic routing and update to DN authorization of PDU session establishment".3GPP tsg_sa\WG2_Arch.2017,(第TSGS2_122_Cabo期),全文. *
Huawei, HiSilicon.S2-188308 "Support for MEC topology exposure for efficient UPF anchor selection".3GPP tsg_sa\wg2_arch.2018,(第tsgs2_128bis_sophia_antipolis期),全文. *

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