WO2021068706A1 - 一种信息处理方法和相关网络设备 - Google Patents

一种信息处理方法和相关网络设备 Download PDF

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Publication number
WO2021068706A1
WO2021068706A1 PCT/CN2020/114558 CN2020114558W WO2021068706A1 WO 2021068706 A1 WO2021068706 A1 WO 2021068706A1 CN 2020114558 W CN2020114558 W CN 2020114558W WO 2021068706 A1 WO2021068706 A1 WO 2021068706A1
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WIPO (PCT)
Prior art keywords
address information
user equipment
smf
uplink classifier
sent
Prior art date
Application number
PCT/CN2020/114558
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English (en)
French (fr)
Inventor
李永竞
王丹
Original Assignee
中国移动通信有限公司研究院
中国移动通信集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中国移动通信有限公司研究院, 中国移动通信集团有限公司 filed Critical 中国移动通信有限公司研究院
Priority to JP2022521437A priority Critical patent/JP7299416B2/ja
Priority to EP20873554.8A priority patent/EP4044754B1/en
Priority to CA3154243A priority patent/CA3154243A1/en
Priority to US17/767,541 priority patent/US20230239958A1/en
Publication of WO2021068706A1 publication Critical patent/WO2021068706A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/58—Caching of addresses or names
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/74—Address processing for routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/22—Manipulation of transport tunnels

Definitions

  • This application relates to wireless communication technology, in particular to an information processing method and related network equipment.
  • the user plane function (UPF, Use Plane Function) can be used as the uplink classifier (UL CL, Uplink classifier), and the session management function (SMF, Session Management Function) can be inserted into the protocol data unit (PDU, Protocol Data). Unit) performs data shunting in the session.
  • the UL CL After inserting the UL CL, the UL CL connects two or more different UPFs as the PDU Session Anchor (PSA, PDU Session Anchor), and each PSA can be connected to a different data network (DN, Data Network).
  • PSA PDU Session Anchor
  • DN Data Network
  • MEC Multi-access Edge Computing
  • UL CL Multi-access Edge Computing
  • PDN Public Data Network
  • UPF Public Data Network
  • the (DNS, Domain Name System) cache in the user equipment UE, User Equipment
  • the UE cannot access locally deployed applications.
  • the embodiments of the present application expect to provide an information processing method and related network equipment.
  • an embodiment of the present application provides an information processing method, and the method includes:
  • SMF obtains the first address information of the local DNS server
  • AMF Authentication Management Function
  • the first address information sent to the user equipment is used for the user equipment to update the cached address information as the first address information.
  • the method before the SMF obtains the first address information of the local DNS server, the method further includes:
  • the SMF receives a notification message sent by the AMF; the notification message is used to instruct the user equipment to move to the service range of the first anchor point connected to the MEC server;
  • the SMF sends a session modification instruction message to the uplink classifier; the session modification instruction message is used to instruct to insert the uplink classifier in the session link.
  • the method further includes: the SMF sends an offload rule to the uplink classifier, and the offload rule is used to configure the uplink classifier to classify the user
  • the first data corresponding to the local device is sent to the local DNS server through the first anchor point.
  • the SMF sending the first address information and the offloading rule to the uplink classifier includes: the SMF sends a session change message to the uplink classifier, and the session The change message includes the first address information and the diversion rule.
  • the sending the first address information to the user equipment via the AMF includes:
  • the SMF sends a session management context update message to the AMF, and the session management context update message includes the first address information; the first address information is sent by the AMF to the AMF through a non-access stratum message User equipment.
  • an embodiment of the present application also provides an information processing method, the method including:
  • the uplink classifier receives the first address information and the offloading rule of the local DNS server sent by the SMF;
  • the method further includes: the uplink classifier obtains the second address information of the MEC server sent by the local DNS server through the first anchor point;
  • the method further includes: the uplink classifier receives second data corresponding to the local sent by the user equipment; the second data includes the second Address information;
  • the uplink classifier receiving the first address information and the offload rule of the local DNS server sent by the SMF includes: the uplink classifier receiving the session change message sent by the SMF ,
  • the session change message includes the first address information and the offloading rule.
  • an embodiment of the present application also provides an SMF, the SMF includes: an acquiring unit and a first sending unit; wherein,
  • the obtaining unit is configured to obtain the first address information of the local DNS server
  • the first sending unit is configured to send the first address information to the uplink classifier, and send the first address information to the user equipment via AMF; wherein, the first address information sent to the user equipment The user equipment is used to update the cached address information as the first address information.
  • the SMF further includes a first receiving unit configured to receive the notification message sent by the AMF before the obtaining unit obtains the first address information of the local DNS server; the notification The message is used to instruct the user equipment to move to the service range of the first anchor point connected to the MEC server;
  • the first sending unit is further configured to send a session modification instruction message to the uplink classifier; the session modification instruction message is used to instruct to insert the uplink classifier in the session link.
  • the first sending unit is further configured to send an offload rule to the uplink classifier, and the offload rule is used to configure the uplink classifier to The first data corresponding to the local user equipment is sent to the local DNS server through the first anchor point.
  • the first sending unit is configured to send a session change message to the uplink classifier, where the session change message includes the first address information and the offload rule.
  • the first sending unit is configured to send a session management context update message to the AMF, and the session management context update message includes the first address information;
  • An address information is sent by the AMF to the user equipment through a non-access stratum message.
  • an embodiment of the present application also provides an uplink classifier, where the uplink classifier includes: a second receiving unit and a second sending unit; wherein,
  • the second receiving unit is configured to receive the first address information and the offloading rule of the local DNS server sent by the SMF; and is also configured to receive the first data corresponding to the local sent by the user equipment;
  • the second sending unit is configured to send the first data to a first anchor point according to the offloading rule; the first anchor point is connected to the MEC server; the first data is sent by the first anchor point Forward to the local DNS server.
  • the second receiving unit is further configured to obtain the second address information of the MEC server sent by the local DNS server through the first anchor point;
  • the second sending unit is further configured to send the second address information to the user equipment.
  • the second receiving unit is further configured to receive second data corresponding to the local device sent by the user equipment; the second data includes the second address information;
  • the second sending unit is further configured to send the second data to the MEC server through the first anchor point.
  • the second receiving unit is configured to receive a session change message sent by an SMF, where the session change message includes the first address information and the offloading rule.
  • the embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of the method described in the first aspect of the embodiments of the present application are implemented; or, the When the program is executed by the processor, the steps of the method described in the second aspect of the embodiments of the present application are implemented.
  • the embodiments of the present application also provide a network device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the processor implements the implementation of the application when the program is executed. Examples are steps of the method described in the first aspect; or, when the processor executes the program, the steps of the method described in the second aspect of the embodiments of the present application are implemented.
  • the information processing method and related network equipment include: SMF obtains first address information of a local DNS server, sends the first address information to an uplink classifier, and sends the information via AMF The first address information is sent to the user equipment; wherein the first address information sent to the user equipment is used by the user equipment to update the cached address information to the first address information.
  • SMF obtains first address information of a local DNS server, sends the first address information to an uplink classifier, and sends the information via AMF
  • the first address information is sent to the user equipment; wherein the first address information sent to the user equipment is used by the user equipment to update the cached address information to the first address information.
  • FIG. 1 is a schematic diagram 1 of the flow of an information processing method according to an embodiment of the application
  • FIG. 2 is a second schematic diagram of the flow of an information processing method according to an embodiment of the application.
  • FIG. 3 is a schematic diagram of the application architecture of the information processing method according to an embodiment of the application.
  • FIG. 4 is a third flowchart of an information processing method according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of a composition structure of an SMF according to an embodiment of the application.
  • FIG. 6 is a schematic diagram of another composition structure of SMF according to an embodiment of the application.
  • FIG. 7 is a schematic diagram of the composition structure of an uplink classifier according to an embodiment of the application.
  • FIG. 8 is a schematic diagram of the hardware composition structure of a network device according to an embodiment of the application.
  • Fig. 1 is a schematic flowchart 1 of an information processing method according to an embodiment of this application; as shown in Fig. 1, the method includes:
  • Step 101 SMF obtains the first address information of the local DNS server
  • Step 102 Send the first address information to the uplink classifier, and send the first address information to the user equipment via AMF; wherein, the first address information sent to the user equipment is used for the user equipment Update the cached address information to the first address information.
  • the SMF sends the first address information to the user equipment via the AMF, so that the user equipment updates the DNS cache.
  • the first address information may be the IP address of the local DNS server.
  • the DNS cache of the user equipment may store the IP address of the DNS obtained by the user equipment first, and the user equipment updates the DNS cache, deletes the IP address of the DNS in the DNS cache, and saves the first address information.
  • the execution premise of the information processing solution of this embodiment is that the user equipment moves within the service range of the first anchor point connected to the MEC server (that is, the user equipment moves to the local), the PDU session of the user equipment has been established, and the PDU session chain An uplink classifier has been inserted in the road.
  • the system architecture to which the information processing method of this embodiment is applied also includes a second anchor point; the uplink classifier is connected to the first anchor point and the second anchor point respectively; the first anchor point is connected to the MEC server respectively Connected to the local DNS server, the second anchor point can be connected to the public network through a packet data network (PDN, Packet Data Network), and the public network and the MEC server can be deployed separately.
  • PDN Packet Data Network
  • the method before the SMF obtains the first address information of the local DNS server, the method further includes: the SMF receives the notification message sent by the AMF; the notification The message is used to instruct the user equipment to move to the service range of the first anchor point connected to the MEC server; the SMF sends session modification indication information to the uplink classifier; the session modification indication information is used to indicate Insert the uplink classifier in the conversation link.
  • the method further includes: the SMF sends a shunt rule to the uplink classifier, and the shunt rule is used to configure the uplink classifier to The first data corresponding to the local user equipment is sent to the local DNS server through the first anchor point.
  • the local first data corresponding to the user equipment is: data sent by the user equipment within the service range of the first anchor point connected to the MEC server.
  • the first data is sent to the local DNS server through the first anchor point, and the local DNS server performs domain name resolution.
  • the resolved domain name is used to determine whether the application requested to access the first data is local (that is, the first data is determined Whether a data requesting application is deployed in the MEC server).
  • the SMF sending the first address information and the offloading rule to the uplink classifier includes: the SMF sends a session change message to the uplink classifier, and The session change message includes the first address information and the offloading rule.
  • the sending the first address information to the user equipment via the AMF includes: the SMF sends a session management context update message to the AMF, and the session management context update message Includes the first address information; the first address information is sent by the AMF to the user equipment through a non-access stratum message.
  • Fig. 2 is a schematic diagram 2 of the flow of an information processing method according to an embodiment of the application; as shown in Fig. 2, the method includes:
  • Step 201 The uplink classifier receives the first address information and the offloading rule of the local DNS server sent by the SMF;
  • Step 202 Receive first data corresponding to the local area sent by the user equipment, and send the first data to a first anchor point according to the offloading rule; the first anchor point is connected to the MEC server; the first data Forwarded by the first anchor to the local DNS server.
  • the uplink classifier sends the first data corresponding to the local area sent by the user equipment to the first anchor point, and the first anchor point sends it to the local DNS server.
  • the local DNS server performs domain name resolution. The latter domain name determines whether the application requested to access the first data is local, that is, it determines whether the application requested to access the first data is deployed in the MEC server.
  • the method further includes: the uplink classifier obtains the second address information of the MEC server sent by the local DNS server through the first anchor point; Sending the second address information to the user equipment.
  • the local DNS server sends the IP address of the MEC server (that is, the second address information) to the first anchor point when it determines that the application requested to access the first data is deployed on the MEC server.
  • the IP address of the MEC server (that is, the second address information) is sent to the uplink classifier.
  • the uplink classifier sends the IP address of the MEC server (that is, the second address information) to the user equipment.
  • the method further includes: the uplink classifier receives the second data corresponding to the local sent by the user equipment; the second data includes the first data 2. Address information; sending the second data to the MEC server through the first anchor point.
  • the uplink classifier receiving the first address information and the offload rule of the local DNS server sent by the SMF includes: the uplink classifier receives the session change sent by the SMF Message, the session change message includes the first address information and the diversion rule.
  • FIG. 3 is a schematic diagram of the application architecture of the information processing method according to an embodiment of the application; as shown in FIG. 3, the system architecture applied by the information processing method according to the embodiment of the application may include: UE, (radio) access network ((R)AN) , (Radio)Access Network), AMF, SMF, UL CL, PSA1, PSA2, local DNS server and MEC server.
  • UL CL is connected to PSA1 and PSA2 respectively; PSA1 is connected to the MEC server and the local DNS server respectively, PSA2 can be connected to the public network through PDN, and the public network and MEC server can be deployed separately.
  • Fig. 4 is a third schematic flowchart of an information processing method according to an embodiment of the application; as shown in Fig. 4, the method includes:
  • Step 301 A notification message sent by the AMF to the SMF, where the notification message is used to instruct the user equipment to move to the service range of the PSA1 connected to the MEC server.
  • the notification message may specifically be an N1 notification message (N1 Message Notify) in the Namf_Communication service.
  • Step 302 The SMF initiates an N4 session modification instruction message, where the session modification instruction message is used to instruct to insert the UL CL in the session link.
  • Step 303 SMF searches to obtain the IP address of the local DNS server, and sends the IP address of the local DNS server to the AMF.
  • the SMF knows the IP address of the local DNS server in advance.
  • the SMF may obtain and store the IP addresses of multiple DNS servers in advance; multiple DNS servers may be distributed in various regions. Then the local DNS server in this embodiment may be one DNS server among the multiple DNS servers.
  • the SMF sends a session management context update message to the AMF.
  • the session management context update message may include the IP address of the local DNS server; the session management context update message may specifically be the Nsmf_PDUSession service UpdateSMContext message.
  • Step 304 The AMF sends the IP address of the local DNS server to the UE.
  • the AMF sends a Non-Access Stratum (NAS, Non-Access Stratum) message to the UE, and the NAS message includes the IP address of the local DNS server; the NAS message may specifically be a N1 NAS message.
  • NAS Non-Access Stratum
  • Step 305 The UE updates the address of the DNS server to the IP address of the local DNS server.
  • Step 306 The SMF sends the IP address of the local DNS server and the offloading rule to the UL CL; the offloading rule is used to configure the UL CL to send the local data corresponding to the UE to the local DNS server through the PSA1.
  • the SMF may send an N4 session change message to the UL CL, and the session change message includes the IP address of the local DNS server and the offloading rule.
  • Step 307 When the UE sends application request data, the UL CL receives the application request data, and forwards the application request data to the PSA1 according to the offloading rule, and the PSA1 forwards the application request data to the local DNS server.
  • Step 308 The local DNS server performs domain name resolution on the application request data, determines that the application requested by the application request data is in the MEC server, and obtains the IP address of the MEC server.
  • Step 309 The local DNS server sends the IP address of the MEC server to the PSA1, the PSA1 sends the IP address of the MEC server to the UL CL, and the UL CL sends the IP address of the MEC server to the UE.
  • Step 310 The UE sends the application access data according to the IP address of the MEC server, the UL CL receives the application access data, and sends the application access data to the PSA1, and the PSA1 forwards the application request data to the MEC server for processing.
  • the data between the UE and the UL CL can be forwarded through the (R)AN.
  • step 303 and step 306 are not limited to that shown in this embodiment.
  • Step 306 can also be executed first, and then step 303 to step 305 can be executed.
  • step 303 and step 306 can also be executed at the same time. There is no limitation in the embodiment.
  • Fig. 5 is a schematic diagram of a composition structure of an SMF according to an embodiment of the application; as shown in Fig. 5, the SMF includes: an acquiring unit 41 and a first sending unit 42; wherein,
  • the obtaining unit 41 is configured to obtain the first address information of the local DNS server
  • the first sending unit 42 is configured to send the first address information to the uplink classifier, and send the first address information to the user equipment via AMF; wherein, the first address sent to the user equipment The information is used by the user equipment to update the cached address information to the first address information.
  • the SMF further includes a first receiving unit 43, configured to receive the first address information of the local DNS server before the acquiring unit 41 A notification message sent by the AMF; the notification message is used to instruct the user equipment to move to the service range of the first anchor point connected to the MEC server;
  • the first sending unit 42 is further configured to send a session modification instruction message to the uplink classifier; the session modification instruction message is used to instruct to insert the uplink classifier in the session link.
  • the first sending unit 42 is further configured to send an offload rule to the uplink classifier, and the offload rule is used to configure the uplink classifier to The first data corresponding to the local user equipment is sent to the local DNS server through the first anchor point.
  • the first sending unit 42 is configured to send a session change message to the uplink classifier, where the session change message includes the first address information and the address information. Describe the diversion rules.
  • the first sending unit 42 is configured to send a session management context update message to the AMF, and the session management context update message includes the first address information;
  • the first address information is sent by the AMF to the user equipment through a non-access stratum message.
  • the acquisition unit 41 in the SMF can be implemented by the central processing unit (CPU, Central Processing Unit), digital signal processor (DSP, Digital Signal Processor), and microcomputer in the SMF in practical applications.
  • a control unit MCU, Microcontroller Unit
  • FPGA Field-Programmable Gate Array
  • the first sending unit 42 and the first receiving unit 43 in the SMF can be implemented through a communication module in practical applications (Including: basic communication suite, operating system, communication module, standardized interface and protocol, etc.) and implementation of transceiver antenna.
  • the SMF provided in the above embodiment performs information processing
  • only the division of the above program modules is used as an example.
  • the above processing can be allocated to different program modules according to needs, that is, SMF
  • the internal structure is divided into different program modules to complete all or part of the processing described above.
  • the SMF provided in the foregoing embodiment and the information processing method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.
  • FIG. 7 is a schematic diagram of the composition structure of an uplink classifier according to an embodiment of the application; as shown in FIG. 7, the uplink classifier includes: a second receiving unit 51 and a second sending unit 52; wherein,
  • the second receiving unit 51 is configured to receive the first address information and the offloading rule of the local DNS server sent by the SMF; and is also used to receive the first data corresponding to the local sent by the user equipment;
  • the second sending unit 52 is configured to send the first data to a first anchor point according to the offloading rule; the first anchor point is connected to the MEC server; the first data is sent by the first anchor point Click Forward to the local DNS server.
  • the second receiving unit 51 is further configured to obtain the second address information of the MEC server sent by the local DNS server through the first anchor point;
  • the second sending unit 52 is further configured to send the second address information to the user equipment.
  • the second receiving unit 51 is further configured to receive second data corresponding to the local device sent by the user equipment; the second data includes the second address information;
  • the second sending unit 52 is further configured to send the second data to the MEC server through the first anchor point.
  • the second receiving unit 51 is configured to receive a session change message sent by an SMF, where the session change message includes the first address information and the offloading rule.
  • the second sending unit 52 and the second receiving unit 51 in the uplink classifier can be used in practical applications through communication modules (including: basic communication suite, operating system, communication module, standardization Interface and protocol, etc.) and transceiver antenna implementation.
  • communication modules including: basic communication suite, operating system, communication module, standardization Interface and protocol, etc.
  • transceiver antenna implementation including: basic communication suite, operating system, communication module, standardization Interface and protocol, etc.
  • the uplink classifier provided in the above embodiment performs information processing
  • only the division of the above program modules is used as an example for illustration.
  • the above processing can be allocated to different program modules according to needs.
  • Complete that is, divide the internal structure of the uplink classifier into different program modules to complete all or part of the processing described above.
  • the uplink classifier provided in the foregoing embodiment belongs to the same concept as the information processing method embodiment, and its specific implementation process is detailed in the method embodiment, and will not be repeated here.
  • FIG. 8 is a schematic diagram of the hardware composition structure of a network device according to an embodiment of the application.
  • the network device 60 includes a memory 62, a processor 61, and a computer stored in the memory 62 and running on the processor 61
  • the processor 61 executes the program, the processor 61 implements the steps of the information processing method applied to the SMF or uplink classifier described in the embodiment of the present application.
  • the network device 60 also includes a communication interface 63.
  • the various components in the network device 60 may be coupled together through the bus system 64.
  • the bus system 64 is used to realize the connection and communication between these components.
  • the bus system 64 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 64 in FIG. 8.
  • the memory 62 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory.
  • the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read- Only Memory, Electrically Erasable Programmable Read-Only Memory (EEPROM), Ferromagnetic Random Access Memory (FRAM), Flash Memory, Magnetic Surface Memory , CD-ROM, or CD-ROM (Compact Disc Read-Only Memory); magnetic surface memory can be magnetic disk storage or tape storage.
  • the volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • SSRAM synchronous static random access memory
  • Synchronous Static Random Access Memory Synchronous Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM synchronous connection dynamic random access memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 62 described in the embodiment of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
  • the method disclosed in the foregoing embodiment of the present application may be applied to the processor 61 or implemented by the processor 61.
  • the processor 61 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 61 or instructions in the form of software.
  • the aforementioned processor 61 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
  • the processor 61 may implement or execute various methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium.
  • the storage medium is located in the memory 62.
  • the processor 61 reads the information in the memory 62 and completes the steps of the foregoing method in combination with its hardware.
  • the network device 60 may be configured by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), and complex programmable logic device (CPLD). , Complex Programmable Logic Device, FPGA, general-purpose processor, controller, MCU, microprocessor (Microprocessor), or other electronic components to implement the foregoing method.
  • ASIC Application Specific Integrated Circuit
  • DSP programmable logic device
  • PLD programmable logic device
  • CPLD complex programmable logic device
  • FPGA field-programmable gate array
  • controller programmable logic device
  • MCU microprocessor
  • Microprocessor microprocessor
  • the embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored.
  • the program is executed by a processor, the information processing method applied to the SMF or uplink classifier described in the embodiments of the present application is implemented A step of.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, such as: multiple units or components can be combined, or It can be integrated into another system, or some features can be ignored or not implemented.
  • the coupling, or direct coupling, or communication connection between the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the functional units in the embodiments of the present application can be all integrated into one processing unit, or each unit can be individually used as a unit, or two or more units can be integrated into one unit;
  • the unit can be implemented in the form of hardware, or in the form of hardware plus software functional units.
  • the foregoing program can be stored in a computer readable storage medium. When the program is executed, it is executed. Including the steps of the foregoing method embodiment; and the foregoing storage medium includes: various media that can store program codes, such as a mobile storage device, ROM, RAM, magnetic disk, or optical disk.
  • the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it may also be stored in a computer readable storage medium.
  • the computer software product is stored in a storage medium and includes several instructions for A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: removable storage devices, ROM, RAM, magnetic disks, or optical disks and other media that can store program codes.

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Abstract

本申请实施例公开了一种信息处理方法和相关网络设备。所述方法包括：会话管理功能(SMF)获得本地域名系统(DNS)服务器的第一地址信息，发送所述第一地址信息至上行链路分类器，以及经认证管理功能(AMF)发送所述第一地址信息至用户设备；其中，发送至用户设备的所述第一地址信息用于所述用户设备更新已缓存的地址信息为所述第一地址信息。

Description

一种信息处理方法和相关网络设备
相关申请的交叉引用
本申请基于申请号为201910959721.8、申请日为2019年10月10日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请涉及无线通信技术，具体涉及一种信息处理方法和相关网络设备。
背景技术
5G核心网中，用户面功能(UPF，Use Plane Function)可以作为上行链路分类器(UL CL，Uplink classifier)、由会话管理功能(SMF，Session Management Function)插入协议数据单元(PDU，Protocol Data Unit)会话中进行数据分流作用。在插入UL CL后，UL CL连接两个或多个不同的UPF作为PDU会话锚点(PSA，PDU Session Anchor)，每个PSA可以连接到不同的数据网络(DN，Data Network)。
另外，5G网络一大能力是多接入边缘计算(MEC，Multi-access Edge Computing)，MEC可以由UL CL支持，从而实现本地分流的能力。在没有MEC之前，UE访问应用时，数据流需要通过UPF进入公共数据网络(PDN，Public Data Network)中。如果部署MEC节点，可以将应用部署在本地的MEC节点上，通过UL CL分流功能将用户访问该应用的数据流分流到本地，减少核心网的负担。
然而，在基于UL CL本地分流的场景下，用户设备(UE，User  Equipment)中(DNS，Domain Name System)缓存并未更新，导致UE无法访问到本地部署的应用。
发明内容
本申请实施例期望提供一种信息处理方法和相关网络设备。
本申请实施例的技术方案是这样实现的：
第一方面，本申请实施例提供了一种信息处理方法，所述方法包括：
SMF获得本地DNS服务器的第一地址信息；
发送所述第一地址信息至上行链路分类器，以及经认证管理功能(AMF，Authentication Management Function)发送所述第一地址信息至用户设备；
其中，发送至用户设备的所述第一地址信息用于所述用户设备更新已缓存的地址信息为所述第一地址信息。
在本申请的一些可选实施例中，所述SMF获得本地DNS服务器的第一地址信息之前，所述方法还包括：
所述SMF接收所述AMF发送的通知消息；所述通知消息用于指示所述用户设备移动至与MEC服务器连接的第一锚点的服务范围内；
所述SMF向所述上行链路分类器发送会话修改指示消息；所述会话修改指示消息用于指示在会话链路中插入所述上行链路分类器。
在本申请的一些可选实施例中，所述方法还包括：所述SMF向所述上行链路分类器发送分流规则，所述分流规则用于配置所述上行链路分类器将所述用户设备对应于本地的第一数据通过第一锚点发送至所述本地DNS服务器。
在本申请的一些可选实施例中，SMF向所述上行链路分类器发送第一地址信息和分流规则，包括：所述SMF向所述上行链路分类器发送会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
在本申请的一些可选实施例中，所述经AMF发送所述第一地址信息至用户设备，包括：
所述SMF向所述AMF发送会话管理上下文更新消息，所述会话管理上下文更新消息中包括所述第一地址信息；所述第一地址信息由所述AMF通过非接入层消息发送至所述用户设备。
第二方面，本申请实施例还提供了一种信息处理方法，所述方法包括：
上行链路分类器接收SMF发送的本地DNS服务器的第一地址信息和分流规则；
接收用户设备发送的对应于本地的第一数据，根据所述分流规则将所述第一数据发送至第一锚点；所述第一锚点与MEC服务器连接；所述第一数据由所述第一锚点转发至所述本地DNS服务器。
在本申请的一些可选实施例中，所述方法还包括：所述上行链路分类器通过所述第一锚点获得所述本地DNS服务器发送的所述MEC服务器的第二地址信息；
发送所述第二地址信息至所述用户设备。
在本申请的一些可选实施例中，所述方法还包括：所述上行链路分类器接收所述用户设备发送的对应于本地的第二数据；所述第二数据中包括所述第二地址信息；
通过所述第一锚点发送所述第二数据至所述MEC服务器。
在本申请的一些可选实施例中，所述上行链路分类器接收SMF发送的本地DNS服务器的第一地址信息和分流规则，包括：所述上行链路分类器接收SMF发送的会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
第三方面，本申请实施例还提供了一种SMF，所述SMF包括：获取单元和第一发送单元；其中，
所述获取单元，配置为获得本地DNS服务器的第一地址信息；
所述第一发送单元，配置为发送所述第一地址信息至上行链路分类器，以及经AMF发送所述第一地址信息至用户设备；其中，发送至用户设备的所述第一地址信息用于所述用户设备更新已缓存的地址信息为所述第一地址信息。
在本申请的一些可选实施例中，所述SMF还包括第一接收单元，配置为所述获取单元获得本地DNS服务器的第一地址信息之前，接收所述AMF发送的通知消息；所述通知消息用于指示所述用户设备移动至与MEC服务器连接的第一锚点的服务范围内；
所述第一发送单元，还配置为向所述上行链路分类器发送会话修改指示消息；所述会话修改指示消息用于指示在会话链路中插入所述上行链路分类器。
在本申请的一些可选实施例中，所述第一发送单元，还配置为向所述上行链路分类器发送分流规则，所述分流规则用于配置所述上行链路分类器将所述用户设备对应于本地的第一数据通过第一锚点发送至所述本地DNS服务器。
在本申请的一些可选实施例中，所述第一发送单元，配置为向所述上行链路分类器发送会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
在本申请的一些可选实施例中，所述第一发送单元，配置为向所述AMF发送会话管理上下文更新消息，所述会话管理上下文更新消息中包括所述第一地址信息；所述第一地址信息由所述AMF通过非接入层消息发送至所述用户设备。
第四方面，本申请实施例还提供了一种上行链路分类器，所述上行链路分类器包括：第二接收单元和第二发送单元；其中，
所述第二接收单元，配置为接收SMF发送的本地DNS服务器的第一地址信息和分流规则；还配置为接收用户设备发送的对应于本地的第一数据；
所述第二发送单元，配置为根据所述分流规则将所述第一数据发送至第一锚点；所述第一锚点与MEC服务器连接；所述第一数据由所述第一锚点转发至所述本地DNS服务器。
在本申请的一些可选实施例中，所述第二接收单元，还配置为通过所述第一锚点获得所述本地DNS服务器发送的所述MEC服务器的第二地址信息；
所述第二发送单元，还配置为发送所述第二地址信息至所述用户设备。
在本申请的一些可选实施例中，所述第二接收单元，还配置为接收所述用户设备发送的对应于本地的第二数据；所述第二数据中包括所述第二地址信息；
所述第二发送单元，还配置为通过所述第一锚点发送所述第二数据至所述MEC服务器。
在本申请的一些可选实施例中，所述第二接收单元，配置为接收SMF发送的会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
第五方面，本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现本申请实施例第一方面所述方法的步骤；或者，该程序被处理器执行时实现本申请实施例第二方面所述方法的步骤。
第六方面，本申请实施例还提供了一种网络设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现本申请实施例第一方面所述方法的步骤；或者，所述处理 器执行所述程序时实现本申请实施例第二方面所述方法的步骤。
本申请实施例提供的信息处理方法和相关网络设备，所述方法包括：SMF获得本地DNS服务器的第一地址信息，发送所述第一地址信息至上行链路分类器，以及经AMF发送所述第一地址信息至用户设备；其中，发送至用户设备的所述第一地址信息用于所述用户设备更新已缓存的地址信息为所述第一地址信息。采用本申请实施例的技术方案，实现了在基于UL CL本地分流的场景下、更新UE中的DNS缓存，使得将UE的应用数据导向至本地，由本地的MEC服务器进行处理，从而实现了本地分流。
附图说明
图1为本申请实施例的信息处理方法的流程示意图一；
图2为本申请实施例的信息处理方法的流程示意图二；
图3为本申请实施例的信息处理方法的应用架构示意图；
图4为本申请实施例的信息处理方法的流程示意图三；
图5为本申请实施例的SMF的一种组成结构示意图；
图6为本申请实施例的SMF的另一种组成结构示意图；
图7为本申请实施例的上行链路分类器的组成结构示意图；
图8为本申请实施例的网络设备的硬件组成结构示意图。
具体实施方式
下面结合附图及具体实施例对本申请作进一步详细的说明。
本申请实施例提供了一种信息处理方法。图1为本申请实施例的信息处理方法的流程示意图一；如图1所示，所述方法包括：
步骤101：SMF获得本地DNS服务器的第一地址信息；
步骤102：发送所述第一地址信息至上行链路分类器，以及经AMF发送所述第一地址信息至用户设备；其中，发送至用户设备的所述第一地址 信息用于所述用户设备更新已缓存的地址信息为所述第一地址信息。
本实施例中，SMF将第一地址信息经AMF发送至用户设备，以使用户设备更新DNS缓存。其中，所述第一地址信息可以是本地DNS服务器的IP地址。用户设备的DNS缓存中可存储有用户设备在先获得的DNS的IP地址，则用户设备更新DNS缓存，删除DNS缓存中的DNS的IP地址，保存所述第一地址信息。
本实施例的信息处理方案的执行前提是：用户设备移动至与MEC服务器连接的第一锚点的服务范围内(即用户设备移动至本地)、用户设备的PDU会话已经建立、且PDU会话链路中已插入上行链路分类器。实际应用中，本实施例的信息处理方法应用的系统架构中还包括第二锚点；上行链路分类器分别于第一锚点和第二锚点连接；第一锚点分别与MEC服务器连接和本地DNS服务器连接，第二锚点可通过分组数据网(PDN，Packet Data Network)连接到公网，公网和MEC服务器可分别部署应用。其中，第一锚点和第二锚点均可以是PSA。
基于此，在本申请的一种可选实施例中，所述SMF获得本地DNS服务器的第一地址信息之前，所述方法还包括：所述SMF接收所述AMF发送的通知消息；所述通知消息用于指示所述用户设备移动至与MEC服务器连接的第一锚点的服务范围内；所述SMF向所述上行链路分类器发送会话修改指示信息；所述会话修改指示信息用于指示在会话链路中插入所述上行链路分类器。
在本申请的一种可选实施例中，所述方法还包括：所述SMF向所述上行链路分类器发送分流规则，所述分流规则用于配置所述上行链路分类器将所述用户设备对应于本地的第一数据通过第一锚点发送至所述本地DNS服务器。
本实施例中，所述用户设备对应于本地的第一数据为：所述用户设备 在处于与MEC服务器连接的第一锚点的服务范围内发出的数据。所述第一数据通过第一锚点发送至所述本地DNS服务器，由本地DNS服务器进行域名解析，通过解析后的域名判断所述第一数据请求访问的应用是否在本地(即判断所述第一数据请求访问的应用是否部署在MEC服务器中)。
在本申请的一种可选实施例中，SMF向所述上行链路分类器发送第一地址信息和分流规则，包括：所述SMF向所述上行链路分类器发送会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
在本申请的一种可选实施例中，所述经AMF发送所述第一地址信息至用户设备，包括：所述SMF向所述AMF发送会话管理上下文更新消息，所述会话管理上下文更新消息中包括所述第一地址信息；所述第一地址信息由所述AMF通过非接入层消息发送至所述用户设备。
采用本申请实施例的技术方案，实现了在基于UL CL本地分流的场景下、更新UE中的DNS缓存，使得将UE的应用数据导向至本地，由本地的MEC服务器进行处理，从而实现了本地分流。
基于前述实施例，本申请实施例还提供了一种信息处理方法。图2为本申请实施例的信息处理方法的流程示意图二；如图2所示，所述方法包括：
步骤201：上行链路分类器接收SMF发送的本地DNS服务器的第一地址信息和分流规则；
步骤202：接收用户设备发送的对应于本地的第一数据，根据所述分流规则将所述第一数据发送至第一锚点；所述第一锚点与MEC服务器连接；所述第一数据由所述第一锚点转发至所述本地DNS服务器。
本实施例中，上行链路分类器将用户设备发送的对应于本地的第一数据发送至第一锚点，由第一锚点发送至本地DNS服务器，由本地DNS服务器进行域名解析，通过解析后的域名判断所述第一数据请求访问的应用 是否在本地，即判断所述第一数据请求访问的应用是否部署在MEC服务器中。
在本申请的一种可选实施例中，所述方法还包括：所述上行链路分类器通过所述第一锚点获得所述本地DNS服务器发送的所述MEC服务器的第二地址信息；发送所述第二地址信息至所述用户设备。
本实施例中，本地DNS服务器在判定第一数据请求访问的应用部署在MEC服务器的情况下，将MEC服务器的IP地址(即第二地址信息)发送至第一锚点，由第一锚点将MEC服务器的IP地址(即第二地址信息)发送至上行链路分类器。上行链路分类器将MEC服务器的IP地址(即第二地址信息)发送至用户设备。
在本申请的一种可选实施例中，所述方法还包括：所述上行链路分类器接收所述用户设备发送的对应于本地的第二数据；所述第二数据中包括所述第二地址信息；通过所述第一锚点发送所述第二数据至所述MEC服务器。
在本申请的一种可选实施例中，所述上行链路分类器接收SMF发送的本地DNS服务器的第一地址信息和分流规则，包括：所述上行链路分类器接收SMF发送的会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
采用本申请实施例的技术方案，实现了在基于UL CL本地分流的场景下、更新UE中的DNS缓存，使得将UE的应用数据导向至本地，由本地的MEC服务器进行处理，从而实现了本地分流。
图3为本申请实施例的信息处理方法的应用架构示意图；如图3所示，本申请实施例的信息处理方法应用的系统架构可包括：UE、(无线)接入网((R)AN，(Radio)Access Network)、AMF、SMF、UL CL、PSA1、PSA2、本地DNS服务器和MEC服务器。其中，UL CL分别于PSA1和PSA2连 接；PSA1分别与MEC服务器连接和本地DNS服务器连接，PSA2可通过PDN连接到公网，公网和MEC服务器可分别部署应用。
基于图3所示的应用架构，本申请实施例还提供了一种信息处理方法，在本实施例中，假设UE移动至与MEC服务器连接的PSA1的服务范围内，UE的PDU会话已经建立、且PDU会话链路中已插入上行链路分类器。图4为本申请实施例的信息处理方法的流程示意图三；如图4所示，所述方法包括：
步骤301：AMF向SMF发送的通知消息，所述通知消息用于指示所述用户设备移动至与MEC服务器连接的PSA1的服务范围内。
这里，所述通知消息具体可以是Namf_Communication服务中N1通知消息(N1 Message Notify)。
步骤302：SMF发起N4会话修改指示消息，所述会话修改指示消息用于指示在会话链路中插入UL CL。
步骤303：SMF搜索获得本地DNS服务器的IP地址，将本地DNS服务器的IP地址发送至AMF。
本实施例中，假定SMF预先获知本地DNS服务器的IP地址。在一实施例中，SMF可预先获得并存储多个DNS服务器的IP地址；多个DNS服务器可分布在各个区域中。则本实施例中的本地DNS服务器可以是所述多个DNS服务器中的一个DNS服务器。
这里，SMF向所述AMF发送会话管理上下文更新消息，会话管理上下文更新消息中可包括本地DNS服务器的IP地址；所述会话管理上下文更新消息具体可以是Nsmf_PDUSession服务UpdateSMContext消息。
步骤304：AMF将本地DNS服务器的IP地址发送至UE。
这里，AMF向UE发送非接入层(NAS，Non-Access Stratum)消息，NAS消息中包括本地DNS服务器的IP地址；所述NAS消息具体可以是 N1 NAS消息。
步骤305：UE更新DNS服务器的地址为所述本地DNS服务器的IP地址。
步骤306：SMF向UL CL发送本地DNS服务器的IP地址以及分流规则；所述分流规则用于配置UL CL将UE对应于本地的数据通过PSA1发送至所述本地DNS服务器。
这里，SMF可向UL CL发送N4会话更改消息，所述会话更改消息中包括本地DNS服务器的IP地址和所述分流规则。
步骤307：在UE发出应用请求数据的情况下，UL CL接收到应用请求数据，根据分流规则将应用请求数据转发至PSA1，PSA1将应用请求数据转发至本地DNS服务器。
步骤308：本地DNS服务器对应用请求数据进行域名解析，判定应用请求数据请求的应用在MEC服务器中，获得MEC服务器的IP地址。
步骤309：本地DNS服务器将MEC服务器的IP地址发送至PSA1，PSA1将MEC服务器的IP地址发送至UL CL，UL CL将MEC服务器的IP地址发送至UE。
步骤310：UE根据MEC服务器的IP地址发送应用访问数据，UL CL接收到应用访问数据，将应用访问数据发送至PSA1，PSA1将应用请求数据转发至MEC服务器进行处理。
本实施例中，UE与UL CL之间的数据可通过(R)AN进行转发。
本实施例中，步骤303和步骤306的执行顺序可不限于本实施例中所示，也可以先执行步骤306，再执行步骤303至步骤305，当然，步骤303和步骤306也可同时执行，本实施例中不做限定。
本申请实施例还提供了一种SMF。图5为本申请实施例的SMF的一种组成结构示意图；如图5所示，所述SMF包括：获取单元41和第一发送 单元42；其中，
所述获取单元41，配置为获得本地DNS服务器的第一地址信息；
所述第一发送单元42，配置为发送所述第一地址信息至上行链路分类器，以及经AMF发送所述第一地址信息至用户设备；其中，发送至用户设备的所述第一地址信息用于所述用户设备更新已缓存的地址信息为所述第一地址信息。
在本申请的一种可选实施例中，如图6所示，所述SMF还包括第一接收单元43，配置为所述获取单元41获得本地DNS服务器的第一地址信息之前，接收所述AMF发送的通知消息；所述通知消息用于指示所述用户设备移动至与MEC服务器连接的第一锚点的服务范围内；
所述第一发送单元42，还配置为向所述上行链路分类器发送会话修改指示消息；所述会话修改指示消息用于指示在会话链路中插入所述上行链路分类器。
在本申请的一种可选实施例中，所述第一发送单元42，还配置为向所述上行链路分类器发送分流规则，所述分流规则用于配置所述上行链路分类器将所述用户设备对应于本地的第一数据通过第一锚点发送至所述本地DNS服务器。
在本申请的一种可选实施例中，所述第一发送单元42，配置为向所述上行链路分类器发送会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
在本申请的一种可选实施例中，所述第一发送单元42，配置为向所述AMF发送会话管理上下文更新消息，所述会话管理上下文更新消息中包括所述第一地址信息；所述第一地址信息由所述AMF通过非接入层消息发送至所述用户设备。
本申请实施例中，所述SMF中的获取单元41，在实际应用中均可由所 述SMF中的中央处理器(CPU，Central Processing Unit)、数字信号处理器(DSP，Digital Signal Processor)、微控制单元(MCU，Microcontroller Unit)或可编程门阵列(FPGA，Field－Programmable Gate Array)实现；所述SMF中的第一发送单元42和第一接收单元43，在实际应用中可通过通信模组(包含：基础通信套件、操作系统、通信模块、标准化接口和协议等)及收发天线实现。
需要说明的是：上述实施例提供的SMF在进行信息处理时，仅以上述各程序模块的划分进行举例说明，实际应用中，可以根据需要而将上述处理分配由不同的程序模块完成，即将SMF的内部结构划分成不同的程序模块，以完成以上描述的全部或者部分处理。另外，上述实施例提供的SMF与信息处理方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
本申请实施例还提供了一种上行链路分类器。图7为本申请实施例的上行链路分类器的组成结构示意图；如图7所示，所述上行链路分类器包括：第二接收单元51和第二发送单元52；其中，
所述第二接收单元51，配置为接收SMF发送的本地DNS服务器的第一地址信息和分流规则；还用于接收用户设备发送的对应于本地的第一数据；
所述第二发送单元52，配置为根据所述分流规则将所述第一数据发送至第一锚点；所述第一锚点与MEC服务器连接；所述第一数据由所述第一锚点转发至所述本地DNS服务器。
在本申请的一种可选实施例中，所述第二接收单元51，还配置为通过所述第一锚点获得所述本地DNS服务器发送的所述MEC服务器的第二地址信息；
所述第二发送单元52，还配置为发送所述第二地址信息至所述用户设 备。
在本申请的一种可选实施例中，所述第二接收单元51，还配置为接收所述用户设备发送的对应于本地的第二数据；所述第二数据中包括所述第二地址信息；
所述第二发送单元52，还配置为通过所述第一锚点发送所述第二数据至所述MEC服务器。
在本申请的一种可选实施例中，所述第二接收单元51，配置为接收SMF发送的会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
本申请实施例中，所述上行链路分类器中的第二发送单元52和第二接收单元51，在实际应用中可通过通信模组(包含：基础通信套件、操作系统、通信模块、标准化接口和协议等)及收发天线实现。
需要说明的是：上述实施例提供的上行链路分类器在进行信息处理时，仅以上述各程序模块的划分进行举例说明，实际应用中，可以根据需要而将上述处理分配由不同的程序模块完成，即将上行链路分类器的内部结构划分成不同的程序模块，以完成以上描述的全部或者部分处理。另外，上述实施例提供的上行链路分类器与信息处理方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
本申请实施例还提供了一种网络设备。图8为本申请实施例的网络设备的硬件组成结构示意图，如图8所示，所述网络设备60包括存储器62、处理器61及存储在存储器62上并可在处理器61上运行的计算机程序，所述处理器61执行所述程序时实现本申请实施例所述的应用于SMF或上行链路分类器的信息处理方法的步骤。
可以理解，网络设备60中还包括通讯接口63。网络设备60中的各个组件可通过总线系统64耦合在一起。可理解，总线系统64用于实现这些 组件之间的连接通信。总线系统64除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图8中将各种总线都标为总线系统64。
可以理解，存储器62可以是易失性存储器或非易失性存储器，也可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(ROM，Read Only Memory)、可编程只读存储器(PROM，Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM，Erasable Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM，Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM，ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(CD-ROM，Compact Disc Read-Only Memory)；磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static Random Access Memory)、同步静态随机存取存储器(SSRAM，Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM，Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM，Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM，Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM，SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM，Direct Rambus Random Access Memory)。本申请实施例描述的存储器62旨在包括但不限于这些和任意其它适合类型的存储器。
上述本申请实施例揭示的方法可以应用于处理器61中，或者由处理器61实现。处理器61可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器61中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器61可以是通用处理器、DSP，或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器61可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器62，处理器61读取存储器62中的信息，结合其硬件完成前述方法的步骤。
在示例性实施例中，网络设备60可以被一个或多个应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、FPGA、通用处理器、控制器、MCU、微处理器(Microprocessor)、或其他电子元件实现，用于执行前述方法。
本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现本申请实施例所述的应用于SMF或上行链路分类器的信息处理方法的步骤。
本申请所提供的几个方法实施例中所揭露的方法，在不冲突的情况下可以任意组合，得到新的方法实施例。
本申请所提供的几个产品实施例中所揭露的特征，在不冲突的情况下可以任意组合，得到新的产品实施例。
本申请所提供的几个方法或设备实施例中所揭露的特征，在不冲突的情况下可以任意组合，得到新的方法实施例或设备实施例。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本申请各实施例中的各功能单元可以全部集成在一个处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
或者，本申请上述集成的单元如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算 机、服务器、或者网络设备等)执行本申请各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (20)

  1. 一种信息处理方法，所述方法包括：
    会话管理功能SMF获得本地域名系统DNS服务器的第一地址信息；
    发送所述第一地址信息至上行链路分类器，以及经认证管理功能AMF发送所述第一地址信息至用户设备；
    其中，发送至用户设备的所述第一地址信息用于所述用户设备更新已缓存的地址信息为所述第一地址信息。
  2. 根据权利要求1所述的方法，其中，所述SMF获得本地DNS服务器的第一地址信息之前，所述方法还包括：
    所述SMF接收所述AMF发送的通知消息；所述通知消息用于指示所述用户设备移动至与多接入边缘计算MEC服务器连接的第一锚点的服务范围内；
    所述SMF向所述上行链路分类器发送会话修改指示消息；所述会话修改指示消息用于指示在会话链路中插入所述上行链路分类器。
  3. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述SMF向所述上行链路分类器发送分流规则，所述分流规则用于配置所述上行链路分类器将所述用户设备对应于本地的第一数据通过第一锚点发送至所述本地DNS服务器。
  4. 根据权利要求3所述的方法，其中，SMF向所述上行链路分类器发送第一地址信息和分流规则，包括：
    所述SMF向所述上行链路分类器发送会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
  5. 根据权利要求1至4任一项所述的方法，其中，所述经AMF发送所述第一地址信息至用户设备，包括：
    所述SMF向所述AMF发送会话管理上下文更新消息，所述会话管理 上下文更新消息中包括所述第一地址信息；所述第一地址信息由所述AMF通过非接入层消息发送至所述用户设备。
  6. 一种信息处理方法，所述方法包括：
    上行链路分类器接收SMF发送的本地DNS服务器的第一地址信息和分流规则；
    接收用户设备发送的对应于本地的第一数据，根据所述分流规则将所述第一数据发送至第一锚点；所述第一锚点与MEC服务器连接；所述第一数据由所述第一锚点转发至所述本地DNS服务器。
  7. 根据权利要求6所述的方法，其中，所述方法还包括：
    所述上行链路分类器通过所述第一锚点获得所述本地DNS服务器发送的所述MEC服务器的第二地址信息；
    发送所述第二地址信息至所述用户设备。
  8. 根据权利要求7所述的方法，其中，所述方法还包括：
    所述上行链路分类器接收所述用户设备发送的对应于本地的第二数据；所述第二数据中包括所述第二地址信息；
    通过所述第一锚点发送所述第二数据至所述MEC服务器。
  9. 根据权利要求6至8任一项所述的方法，其中，所述上行链路分类器接收SMF发送的本地DNS服务器的第一地址信息和分流规则，包括：
    所述上行链路分类器接收SMF发送的会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
  10. 一种SMF，所述SMF包括：获取单元和第一发送单元；其中，
    所述获取单元，配置为获得本地DNS服务器的第一地址信息；
    所述第一发送单元，配置为发送所述第一地址信息至上行链路分类器，以及经AMF发送所述第一地址信息至用户设备；其中，发送至用户设备的所述第一地址信息用于所述用户设备更新已缓存的地址信息为所述第一地 址信息。
  11. 根据权利要求10所述的SMF，其中，所述SMF还包括第一接收单元，配置为所述获取单元获得本地DNS服务器的第一地址信息之前，接收所述AMF发送的通知消息；所述通知消息用于指示所述用户设备移动至与MEC服务器连接的第一锚点的服务范围内；
    所述第一发送单元，还配置为向所述上行链路分类器发送会话修改指示消息；所述会话修改指示消息用于指示在会话链路中插入所述上行链路分类器。
  12. 根据权利要求10所述的SMF，其中，所述第一发送单元，还配置为向所述上行链路分类器发送分流规则，所述分流规则用于配置所述上行链路分类器将所述用户设备对应于本地的第一数据通过第一锚点发送至所述本地DNS服务器。
  13. 根据权利要求12所述的SMF，其中，所述第一发送单元，配置为向所述上行链路分类器发送会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
  14. 根据权利要求10至13任一项所述的SMF，其中，所述第一发送单元，配置为向所述AMF发送会话管理上下文更新消息，所述会话管理上下文更新消息中包括所述第一地址信息；所述第一地址信息由所述AMF通过非接入层消息发送至所述用户设备。
  15. 一种上行链路分类器，所述上行链路分类器包括：第二接收单元和第二发送单元；其中，
    所述第二接收单元，配置为接收SMF发送的本地DNS服务器的第一地址信息和分流规则；还配置为接收用户设备发送的对应于本地的第一数据；
    所述第二发送单元，配置为根据所述分流规则将所述第一数据发送至 第一锚点；所述第一锚点与MEC服务器连接；所述第一数据由所述第一锚点转发至所述本地DNS服务器。
  16. 根据权利要求15所述的上行链路分类器，其中，所述第二接收单元，还配置为通过所述第一锚点获得所述本地DNS服务器发送的所述MEC服务器的第二地址信息；
    所述第二发送单元，还配置为发送所述第二地址信息至所述用户设备。
  17. 根据权利要求16所述的上行链路分类器，其中，所述第二接收单元，还配置为接收所述用户设备发送的对应于本地的第二数据；所述第二数据中包括所述第二地址信息；
    所述第二发送单元，还配置为通过所述第一锚点发送所述第二数据至所述MEC服务器。
  18. 根据权利要求15至17任一项所述的上行链路分类器，其中，所述第二接收单元，配置为接收SMF发送的会话更改消息，所述会话更改消息中包括所述第一地址信息和所述分流规则。
  19. 一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现权利要求1至5任一项所述方法的步骤；或者，该程序被处理器执行时实现权利要求6至9任一项所述方法的步骤。
  20. 一种网络设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现权利要求1至5任一项所述方法的步骤；或者，所述处理器执行所述程序时实现权利要求6至9任一项所述方法的步骤。
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