WO2021227579A1 - 通信系统、服务器、通信方法和装置 - Google Patents

通信系统、服务器、通信方法和装置 Download PDF

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Publication number
WO2021227579A1
WO2021227579A1 PCT/CN2021/075621 CN2021075621W WO2021227579A1 WO 2021227579 A1 WO2021227579 A1 WO 2021227579A1 CN 2021075621 W CN2021075621 W CN 2021075621W WO 2021227579 A1 WO2021227579 A1 WO 2021227579A1
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WIPO (PCT)
Prior art keywords
terminal device
mec
address
terminal
correspondence
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PCT/CN2021/075621
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English (en)
French (fr)
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WO2021227579A9 (zh
Inventor
赵明宇
严学强
孙欢
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21804707.4A priority Critical patent/EP4132049A4/en
Publication of WO2021227579A1 publication Critical patent/WO2021227579A1/zh
Priority to US17/980,688 priority patent/US20230056070A1/en
Publication of WO2021227579A9 publication Critical patent/WO2021227579A9/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • 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
    • H04L61/50—Address allocation
    • H04L61/5084—Providing for device mobility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/30—Security of mobile devices; Security of mobile applications
    • H04W12/37—Managing security policies for mobile devices or for controlling mobile applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/14—Backbone network devices

Definitions

  • This application relates to the field of communication technology, and in particular to a communication system, server, communication method and device.
  • the existing communication system is built based on the network deployment of operators.
  • Core networks are set up in different geographical areas. Among them, the core network integrates the functions of multiple network elements, such as mobility management network elements and session management network elements. , User data management network elements and policy management network elements.
  • the core network can provide communication services for terminal equipment in various regions. For example, if terminal equipment A is in area A, it will provide communication services for terminal equipment A through the core network of area A. If terminal equipment A moves to area B, it will pass The core network of area B provides communication services for terminal devices.
  • the embodiments of the present application provide a communication system, a server, a communication method, and a device to solve the problem of single point failure in the communication system.
  • an embodiment of the application provides a communication system, including: an edge cloud (mulit-access edge computing, MEC) and a digital reflection (DR), at least one DR is deployed on the MEC, and the DR corresponds to a group Terminal equipment, a group of terminal equipment includes at least one terminal equipment; DR is used to provide services for a group of terminal equipment corresponding to DR; DR has at least one core network function; core network functions include mobility management and/or unified data Management and/or session management, and/or policy management, and/or access authentication and authorization.
  • MEC edge cloud
  • DR digital reflection
  • the DR in the communication system has at least one core network function, and one DR only serves a group of terminal devices. Even if a certain DR fails, it will not affect other DRs to serve other groups of terminal devices. In this way, the problem of single point of failure can be avoided, and the terminal device can better receive services in the communication system.
  • the communication system may further include: a life cycle management system (life cycle management, LCM); wherein, LCM is used to manage DR operation information, and DR operation information includes the life cycle of DR and DR's operation information. Address; Among them, the life cycle is used to indicate the time information of the DR creation and the time information of the deletion.
  • LCM life cycle management system
  • the operation information of the DR is managed through the LCM, so as to better control the operation behavior of the DR in the communication system, so that the DR can better serve the terminal equipment.
  • LCM is specifically used to create a DR for the first terminal device that newly joins the communication system; or, when the first terminal device migrates from the first MEC to the second MEC, the data on the second MEC is The first terminal device reconstructs the corresponding DR; or, when the first terminal device migrates from the first MEC to the second MEC, reconstruct the corresponding DR for the first terminal device on the second MEC, and delete the corresponding DR on the first MEC The DR corresponding to the first terminal device; where the first MEC and the second MEC are different MECs.
  • Managing DR through LCM facilitates better service for terminal equipment through DR.
  • the LCM is specifically used to determine the DRs that meet the preset condition among the DRs as the DR group; wherein, the preset condition is that they belong to the same designated service group.
  • the LCM may also be used to delete the first DR when the first DR in the DR group stops serving the designated service group.
  • the configuration resources of the DR group can be prevented from being consumed by the DRs that do not belong to the DR group, and the security of the DR group is ensured.
  • the communication system may further include: a distributed mapping system (DMS); the DMS is used to store one or more of the following correspondence relationships:
  • DMS distributed mapping system
  • the communication system may further include: a distributed data provisioning system (DDPS); DDPS is used to store terminal equipment and operation data generated by the DR execution service corresponding to the terminal equipment, and/ Or user subscription information, and/or user personal identification information.
  • DDPS distributed data provisioning system
  • the communication system stores data information through DDPS so that the data can be accessed anytime and anywhere.
  • the storage information of the DR includes: the correspondence between the identity of the DR and the address of the DR, the correspondence between the identity of the terminal device and the address of the terminal device, the identity of the terminal device and the address of the DR.
  • the storage information of the DR facilitates the DR to accurately determine the identification of its corresponding terminal device and the address of the terminal device, so as to better provide services for its corresponding terminal device.
  • the embodiments of the present application provide a server, the server is deployed on the MEC; at least one DR is deployed on the MEC, the DR corresponds to a group of terminal equipment, and the group of terminal equipment includes at least one terminal equipment; the DR is used to correspond to the DR
  • a group of terminal devices provide services; DR has at least one core network function; core network functions include mobility management, and/or, unified data management, and/or, session management, and/or, policy management and/or access Entry authentication and authorization.
  • the DR in the server has at least one core network function, and one DR only serves a group of terminal devices. Even if one DR fails, it will not affect other DRs to serve other groups of terminal devices, thus avoiding the occurrence of The problem of single point of failure can in turn enable terminal equipment to better receive services in the communication system.
  • the server further includes: DMS; DMS is used to store one or more of the following correspondences: the correspondence between the identity of the DR and the address of the DR; the identity of the terminal device and the terminal device Correspondence between the addresses of DR; Correspondence between the identification of the terminal equipment and the identification of the DR; Correspondence between the address of the terminal equipment and the address of the DR; Correspondence between the identification of the DR and the address of the terminal equipment; The corresponding relationship between the identification of the terminal equipment and the address of the DR; the correspondence between the user identification code carried by the terminal equipment and the identification of the DR.
  • the server further includes: DDPS; the DDPS is used to store the terminal device and the operation data generated by the DR execution service corresponding to the terminal device, and/or user subscription information, and/or user personal identity information.
  • the storage information of the DR includes: the correspondence between the identity of the DR and the address of the DR, the correspondence between the identity of the terminal device and the address of the terminal device, the identity of the terminal device and the address of the DR.
  • the storage information of the DR facilitates the DR to accurately determine the identification of its corresponding terminal device and the address of the terminal device, so as to better provide services for its corresponding terminal device.
  • an embodiment of the present application provides a communication method.
  • the method includes receiving the indication information of the second MEC by the terminal equipment when the terminal equipment migrates from the first MEC to the second MEC; the indication information is used to instruct the terminal equipment The association relationship with the second DR; the second DR is the DR corresponding to the terminal device in the second MEC; the terminal device establishes a connection with the second DR according to the instruction information.
  • the method can be applied to a communication system.
  • the communication system includes MEC and DR. At least one DR is deployed on the MEC.
  • the DR corresponds to a group of terminal equipment, and a group of terminal equipment includes at least one terminal equipment; the DR is used for a group of terminals corresponding to the DR.
  • Equipment provides services;
  • DR has at least one core network function; core network functions include mobility management, and/or unified data management, and/or session management, and/or policy management, and/or, access authentication , Authorization.
  • the communication method can ensure that the connection between the terminal device and the DR can still be maintained when the terminal device undergoes a cross-MEC migration, so as to better serve the reception.
  • the terminal device updates the first storage information of the terminal device to the second storage information according to the instruction information;
  • the first storage information includes the correspondence between the identification of the terminal device and the address of the first DR Relationship;
  • the second storage information includes the corresponding relationship between the identification of the terminal device and the address of the second DR; where the first DR is the DR corresponding to the terminal device in the first MEC; the terminal device communicates with the second DR according to the second storage information DR establishes a connection.
  • the terminal device can establish a connection with the DR through the indication information of the MEC, so as to better serve the reception.
  • an embodiment of the present application provides a communication method.
  • the method includes a second DR receiving indication information of a second MEC; the second DR is the DR corresponding to the terminal device in the second MEC; the second MEC is the terminal device slave
  • the MEC connected after the migration of the first MEC; the indication information is used to indicate the association relationship between the terminal equipment and the second DR; the second DR establishes a connection with the terminal equipment according to the indication information.
  • the method is applied to a communication system.
  • the communication system includes MEC and DR. At least one DR is deployed on the MEC.
  • the DR corresponds to a group of terminal equipment.
  • a group of terminal equipment includes at least one terminal equipment; the DR is used for a group of terminal equipment corresponding to the DR.
  • Provide services; DR has at least one core network function; core network functions include mobility management, and/or unified data management, and/or session management, and/or policy management, and/or access authentication, Authorization.
  • the communication method can ensure that the connection between the terminal device and the DR can still be maintained when the terminal device undergoes a cross-MEC migration, so that the DR can better serve the terminal device.
  • the second DR determines the second storage information according to the indication information; the second storage information includes the correspondence between the identification of the terminal device and the address of the second DR; the second DR according to the second storage The information establishes a connection with the terminal device.
  • the DR can establish a connection with the terminal device through the indication information of the MEC, so that the DR can better serve the terminal device.
  • the second DR receives the context information of the first DR; the context information includes operation data generated by the execution of the service by the first DR, and/or user subscription information, and/or user personal identity information; first The DR is the DR corresponding to the terminal device in the first MEC; the second DR updates the context information of the second DR according to the context information of the first DR.
  • the context information in the first DR can be migrated to the second DR, so that the second DR can better serve the terminal device.
  • an embodiment of the present application provides a communication device, which includes: a transceiver unit and a creation unit.
  • the transceiving unit is configured to receive indication information of the second MEC when the terminal equipment migrates from the first MEC to the second MEC; the indication information is used to indicate the association relationship between the terminal equipment and the second DR; second The DR is the DR corresponding to the terminal device in the second MEC; the creation unit is used to establish a connection with the second DR according to the instruction information.
  • the device is applied to a communication system.
  • the communication system includes an edge cloud MEC and a digital mapping entity DR.
  • At least one DR is deployed on the MEC.
  • the DR corresponds to a group of terminal equipment, and a group of terminal equipment includes at least one terminal equipment; DR is used to correspond to DR
  • a group of terminal devices provide services;
  • DR has at least one core network function; core network functions include mobility management, and/or, unified data management, and/or, session management, and/or, policy management, and/or , Access authentication and authorization.
  • connection between the terminal device and the DR can still be maintained when the terminal device undergoes cross-MEC migration, so that the terminal device can better receive services.
  • the creating unit may update the first storage information of the terminal device to the second storage information according to the instruction information; and according to the second storage information and the first storage information
  • the second DR establishes a connection.
  • the first storage information includes the corresponding relationship between the identification of the terminal device and the address of the first DR
  • the second storage information includes the relationship between the identification of the terminal device and the address of the second DR Correspondence
  • the first DR is a DR corresponding to the terminal device in the first MEC.
  • the terminal equipment can establish a connection with the DR through the indication information of the MEC, so as to better serve the reception.
  • an embodiment of the present application provides a communication device, which includes: a transceiver unit and a creation unit.
  • the transceiver unit is used to receive the indication information of the second MEC;
  • the second DR is the DR corresponding to the terminal equipment in the second MEC;
  • the second MEC is the MEC connected after the terminal equipment migrates from the first MEC;
  • the indication information is used to Indicate the association relationship between the terminal device and the second DR;
  • the creation unit is configured to establish a connection with the terminal device according to the instruction information.
  • the device is applied to a communication system.
  • the communication system includes an edge cloud MEC and a digital mapping entity DR.
  • At least one DR is deployed on the MEC.
  • the DR corresponds to a group of terminal equipment, and a group of terminal equipment includes at least one terminal equipment;
  • DR is used to correspond to DR
  • a group of terminal devices provide services;
  • DR has at least one core network function; core network functions include mobility management, and/or, unified data management, and/or, session management, and/or, policy management, and/or , Access authentication and authorization;
  • the connection between the terminal device and the DR can still be maintained when the terminal device undergoes cross-MEC migration, so that the DR can better serve the terminal device.
  • the creation unit may determine second storage information according to the instruction information; and establish a connection with the terminal device according to the second storage information; wherein, the second storage information Including the correspondence between the identifier of the terminal device and the address of the second DR.
  • the DR can establish a connection with the terminal equipment through the indication information of the MEC, so that the DR can better serve the terminal equipment.
  • the device further includes: a context transceiving unit, configured to receive context information of the first DR; and update the context information of the second DR according to the context information of the first DR; wherein ,
  • the context information includes operation data generated by the first DR to execute the service, and/or user subscription information, and/or user personal identity information; the first DR is the terminal equipment in the first MEC The corresponding DR.
  • the context information in the first DR can be migrated to the second DR, so that the second DR can better serve the terminal device.
  • an embodiment of the present application provides a communication device including a processor and a memory; the memory is used to store computer-executable instructions, and when the device is running, the processor executes the computer-executable instructions stored in the memory, This allows the device to execute the solution described in any one of the embodiments of the third aspect or the fourth aspect.
  • embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores computer-readable instructions.
  • the computer reads and executes the computer-readable instructions, the computer executes the third aspect or the fourth aspect.
  • an embodiment of the present application provides a computer program product.
  • the computer reads and executes the computer program product, the computer executes the solution described in any one of the above-mentioned third aspect or fourth aspect.
  • Figure 1 shows a schematic diagram of the architecture of a communication system
  • FIG. 2 shows a schematic structural diagram of a communication system provided by an embodiment of the present application
  • FIG. 3 shows a schematic diagram of DR operation function items provided by an embodiment of the present application
  • FIG. 4 shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present application
  • Figure 5 shows a schematic diagram of user identity authentication provided by an embodiment of the present application
  • FIG. 6 shows a schematic flowchart of a communication method provided by an embodiment of the present application
  • FIG. 7 shows a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 8 shows a schematic diagram of a communication method provided by an embodiment of the present application.
  • FIG. 9 shows a schematic diagram of a data transmission process provided by an embodiment of the present application.
  • FIG. 10 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 11 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Fig. 12 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • a terminal device is a device that can provide users with voice and/or data connectivity.
  • terminal devices include handheld devices with wireless connection functions, vehicle-mounted devices, and so on.
  • terminal devices can be: mobile phones, tablets, laptops, handheld computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in smart grids, and wireless terminals in transportation safety
  • MID mobile internet devices
  • VR virtual reality
  • AR augmented reality
  • a terminal a wireless terminal in a smart city, or a wireless terminal in a smart home, etc.
  • a network device is a device that provides wireless communication functions for terminal devices, including but not limited to: gNB in the 5th generation mobile networks (5G), radio network controller (radio network controller) , RNC), node B (node B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved nodeB, or home node B, HNB ), baseband unit (BBU), transmission point (transmitting and receiving point, TRP), transmission point (TP), mobile switching center, etc.
  • the base station in this application may also be a device that provides wireless communication functions for the terminal in other communication systems that may appear in the future.
  • the core network is composed of one or more network elements, which may include: mobility management network elements, session management network elements, user data management network elements, and policy management network elements, which are mainly used for data processing and routing Obtaining the address of the business request.
  • MEC is a small-scale cloud data center that is distributed on the edge of the network and provides real-time data processing, analysis and decision-making for terminal equipment.
  • DR is equivalent to the agent of a group of terminal equipment of the user in the digital world.
  • a digital mapping entity is only a group of terminal equipment of a user for communication services, and has at least one core network function, and a group of users.
  • the communication connection of the terminal equipment can allocate network resources to users nearby so as to better serve users.
  • the communication system includes: a core network, multiple network devices, multiple terminal devices, and a cloud server.
  • the cloud server can be a server of an application program (APP) manufacturer or a server of an operator .
  • the user can send a service request to the network device through the terminal device, and then send the service request to the core network through the network device, and the core network calls the service required by the user in the cloud server. For example, if the service request of user A is to download APP1, User A’s terminal device sends a service request for downloading APP1 to the network device.
  • the network device sends the service request for downloading APP1 to the core network.
  • the core network calls the address of the cloud server where APP1 is located and sends the address to user A accurately.
  • User A’s terminal device so that user A can accurately download APP1; or user A’s service request is to make a call with user B, then the service request will be sent to the network device through user A’s terminal device, and the network device will communicate with user B
  • the service request for the call is sent to the core network, and the core network calls the operator's server to execute the service request for the call with the user B, and the user A and the user B realize the call.
  • the core network needs to serve multiple network devices, so the core network is usually deployed in a location that can cover a large number of network devices.
  • the quality of the communication services obtained may not be very good.
  • the core network fails, multiple network devices covered by it cannot serve the terminal devices, and there will be a single point of failure.
  • the embodiments of the present application provide a communication system, which can solve the problem of single point of failure, so as to better provide services for terminal devices.
  • Fig. 2 shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • the communication system includes multiple MECs and multiple DRs. Further, optionally, the communication system may also include multiple network devices, multiple terminal devices, and cloud servers. Among them, at least one DR is deployed on the MEC. In order to facilitate the description of the solution, in Figure 2, three DRs are deployed in MEC1 and two DRs are deployed in MEC2 as an example. However, in actual application, multiple DRs can be deployed on each MEC, which will not be described in detail here.
  • DR has a core network function, where the core network function includes at least one of the following: mobility management; unified data management; session management; policy management; access authentication and authorization.
  • mobility management can refer to the management of the location information, security, and business continuity of terminal devices, so that terminal devices can perform communication services no matter where they are moved; unified data management can operate on terminal devices Data management.
  • Session management can realize the functions of session management function (SMF) network elements in 5G; policy management is to control the service quality of the services required by users, so as to provide users with differentiated services; access authentication and authorization are Perform identity authentication for users who access the communication system and authorize the terminal devices of users who access the communication system.
  • SMS session management function
  • the user's terminal device can be added to the communication system to receive services.
  • This terminal device can correspond to a DR, and then the user's other terminal devices need to pass When the communication system receives the service, it also receives the service through the DR.
  • the DR can correspond to a group of terminal devices, that is, a DR can provide services for a group of terminal devices.
  • user A’s terminal devices contracted with the management agency of the communication system include: mobile phones, tablet computers, and laptops, and user A’s terminal devices can be formed into a group of terminal devices corresponding to DR1.
  • DR1 can provide call service for user A’s mobile phone; DR1 can call the corresponding server of the website to obtain the website address, so that user A’s tablet or laptop can access the website address.
  • DR1, DR2, and DR3 are deployed on MEC1
  • DR4 and DR5 are deployed on MEC2.
  • DR1 serves a group of terminal equipment of user A
  • DR2 serves a group of terminal equipment of user B
  • DR3 is A group of terminal equipment services of user C, even if DR1 fails, it will not affect the service provided by DR2 to a group of terminal equipment of user B, and it will not affect the service provided by DR3 to a group of terminal equipment of user C, that is, it avoids Single point of failure.
  • the communication system provided by the embodiment of the present application may further include: LCM, which is mainly used to manage the operation information of the DR, and the operation information of the DR may include the life cycle of the DR and the address of the DR ; Among them, the life cycle is used to indicate the time information of the DR creation and the time information of the deletion.
  • LCM which is mainly used to manage the operation information of the DR
  • the operation information of the DR may include the life cycle of the DR and the address of the DR ; Among them, the life cycle is used to indicate the time information of the DR creation and the time information of the deletion.
  • the LCM records the operation information of the DR in the communication system from the point in time when the DR is created to the point in time when the DR is deleted.
  • Fig. 3 schematically depicts the operation function items of the operation information of the DR.
  • the operation function items may but are not limited to include at least one of the following: the identifier of the DR; the address of the DR; create the DR; delete the DR; copy the DR; Form DR group for DR; unbind DR from DR group; reconstruct DR; migrate DR context information; give DR the ability to learn.
  • the DR identity is the unique identity of the DR in the communication system, which can be expressed by a readable code or by other codes.
  • the specific method used to express the DR identity is not specifically limited in this application.
  • the code determined according to the preset coding rule to indicate the identity of the DR is applicable to this application.
  • the address of the DR is the routable address of the device, that is, the address of the DR on the MEC. Any device can accurately find the DR by accessing the address of the DR.
  • the address of DR1 on the MEC is RLOC R1 , terminal equipment can find DR1 through RLOC R1 , and network equipment can also find DR1 through RLOC R1.
  • Creating a DR is to create a DR for the first terminal device that newly joins the communication system. After the user completes the contract with the management agency of the communication system, a DR is generated for the terminal device of the subscriber through the LCM, and an identifier is configured for the DR. In addition, LCM also records the address of the DR in order to better serve the subscriber's terminal equipment.
  • Copying DR is to copy DR when backing up DR to avoid data loss in DR.
  • the preset condition is that they belong to the same designated service group, for example, the DR group corresponding to the terminal equipment of users of the same company is formed DR group, or the DR group corresponding to the terminal equipment of users of the same school can be formed into a DR group, which can provide unified services to the terminal equipment of the DR group, such as pushing a technical journal of a website to the DR group, Each DR in the DR group can receive the pushed technical journal.
  • the first DR in the DR group stops serving the designated service group
  • the first DR is deleted. For example, if a user of a company resigns, the DR corresponding to the user can be deleted from the DR group, and the DR deleted from the DR group will not be able to receive the services provided by the DR group, thus ensuring the security of the DR group.
  • the corresponding DR is reconstructed for the first terminal device on the second MEC, and the DR corresponding to the first terminal device on the first MEC is deleted.
  • the MEC and the second MEC are different MECs.
  • the identifiers of the DR corresponding to the first terminal device on the first MEC and the DR corresponding to the first terminal device reconstructed on the second MEC are the same, except that the addresses are different.
  • the ID of the DR corresponding to terminal device 1 is DR1, and the terminal device 1 migrates from MEC1 to MEC2.
  • the corresponding DR on MEC1 the ID of DR is DR1, and the address of DR is RLOC R1 ; the corresponding DR on MEC2, DR The identifier of is DR1, and the address of DR is RLOC R1' .
  • the terminal equipment provided by the user A provides services, where the context information of the DR on the MEC of the first place includes the operation data generated by the DR on the MEC of the first place, the subscription information of the user A, and the personal identity information of the user A.
  • the first terminal device migrates from the first MEC to the second MEC, it is also possible to reconstruct the corresponding DR for the first terminal device on the second MEC.
  • User B’s resident location is A
  • the MEC of A corresponds to the DR corresponding to user B’s terminal equipment
  • user B is temporarily on a business trip to B, and it can be user B’s terminal equipment on the MEC of B Reconstruct DR.
  • DR can also be endowed with learning capabilities, such as language learning capabilities, graphic recognition capabilities, analysis and calculation capabilities, etc., which are not specifically limited here, as long as they can be acquired through learning. All apply to this application. For example, if the user comes to an unfamiliar country and cannot communicate well with the language, he can use the language learning ability of DR to communicate well with the local residents.
  • learning capabilities such as language learning capabilities, graphic recognition capabilities, analysis and calculation capabilities, etc.
  • the communication system further includes: DMS, which is distributedly deployed on the MEC, where DMS is used to store the following correspondences: One or more: the corresponding relationship between the DR identifier and the DR address; the corresponding relationship between the terminal device identifier and the address of the terminal device; the corresponding relationship between the terminal device identifier and the DR identifier; the terminal device The correspondence between the address of the DR and the address of the DR; the correspondence between the identification of the DR and the address of the terminal device; the correspondence between the identification of the terminal device and the address of the DR; the user identification code and the DR carried by the terminal device The corresponding relationship between the identities.
  • the corresponding relationship between the DR identifier and the DR address is the corresponding relationship between the unique identity authentication identifier of the DR in the communication system and the address that the DR can be routed by the device.
  • the identifier of the DR is known to be DR1.
  • the corresponding relationship between the DR identifier and the DR address can be determined in the DMS to determine the DR address; or, if the address of the DR is known as RLOC R1 , the correspondence between the DR identifier and the DR address can be queried in the DMS The relationship can determine the identity of the DR.
  • the correspondence between the identification of the terminal device and the address of the terminal device is the correspondence between the identification of the terminal device in the communication system and the local address allocated by the MEC for the terminal device, such as: Knowing that the identification of the terminal device is EID 1 , by querying the correspondence between the identification of the terminal device and the address of the terminal device in the DMS, the address of the terminal device can be determined; or, if the address of the known terminal device is LLOC D1 , pass By querying the correspondence between the identification of the terminal device and the address of the terminal device in the DMS, the identification of the terminal device can be determined.
  • the correspondence between the identification of the terminal device and the identification of the DR that is, the correspondence between the identification of the terminal device in the communication system and the unique identity authentication identification of the DR in the communication system, such as:
  • the identification of the known terminal device is EID 1
  • the identification of the DR can be determined by querying the correspondence between the identification of the terminal device and the identification of the DR in the DMS; or, the identification of the known DR is DR1, and the identification of the DR can be determined in the DMS.
  • the identification of the terminal device can be determined.
  • the correspondence between the address of the terminal device and the address of the DR is the correspondence between the local address allocated by the MEC for the terminal device and the address that the DR can be routed by the device, such as: a known terminal
  • the address of the device is LLOC D1 .
  • the address of the DR can be determined; or, if the address of the DR is known to be RLOC R1 , by querying the terminal in the DMS
  • the correspondence between the address of the device and the address of the DR can determine the address of the terminal device.
  • the corresponding relationship between the DR identifier and the address of the terminal device that is, the corresponding relationship between the unique identity authentication identifier of the DR in the communication system and the local address allocated by the MEC for the terminal device, such as: Knowing that the ID of the DR is DR1, the address of the terminal device can be determined by querying the correspondence between the ID of the DR and the address of the terminal device in the DMS; or, the address of the known terminal device is LLOC D1 , through the DMS By querying the correspondence between the DR identifier and the address of the terminal device, the DR identifier can be determined.
  • the correspondence between the identification of the terminal device and the address of the DR is known as:
  • the identification of the terminal device is EID 1.
  • the address of the DR can be determined; or, if the address of the DR is known to be RLOC R1 , it can be queried in the DMS
  • the corresponding relationship between the identification of the terminal device and the address of the DR can determine the identification of the terminal device.
  • the corresponding relationship between the user identification code carried by the terminal device and the DR identity that is, the unique identity authentication identity of the terminal device in the communication system and the unique identity authentication identity of the DR in the communication system
  • the corresponding relationship between the two, through which the user identification code and the DR identifier carried by the terminal device can be accurately determined.
  • the user identification code carried by the terminal device is equivalent to the international mobile subscriber identity (IMSI) in the 4th generation mobile communication technology (4G), and is equivalent to the international mobile subscriber identity in the 5G.
  • MMSI international mobile subscriber identity
  • SUPI subscription permanent identifier
  • the identification of the DR can be determined; or, Knowing that the identifier of the DR is DR1, the user identification code carried by the terminal device can be determined by querying the correspondence between the user identification code carried by the terminal device and the identifier of the DR in the DMS.
  • the corresponding relationship stored in the DMS is updated in real time to ensure the accuracy of the corresponding relationship stored in the DMS to better serve the equipment in the communication system.
  • the communication system further includes: DDPS, where DDPS is used to store the terminal device and the operation data generated by the DR execution service corresponding to the terminal device , And/or user subscription information, and/or user personal identification information.
  • the operation data of the terminal device is the operation data generated by the terminal device performing operations such as calling and surfing the Internet; the operation data generated by the DR execution service corresponding to the terminal device is also the DR migration context and the operation generated when the DR obtains the service.
  • Data; the user's subscription information is the information when the user signs a contract with the management organization of the communication system when the user first joins the communication system. Based on this information, the user's terminal device can receive services through the communication system. Store data information through DDPS so that data can be accessed anytime, anywhere.
  • FIG 4 a schematic diagram of the architecture of the communication system provided by the embodiments of this application.
  • the communication system may include: MEC, DR, LCM, DMS, DDPS.
  • Figure 4 schematically describes the MEC in the communication system through only 4 MECs.
  • DR is deployed on MEC
  • DMS and DDPS are distributed on MEC.
  • Each MEC can cover multiple network devices, and the user's terminal equipment receives the services provided by the communication system through the network equipment.
  • LCM is used to manage the operation information of DR
  • DMS is used to store correspondences
  • DDPS stores data, which will not be described in detail here.
  • the MEC, DR, LCM, DMS and DDPS in the communication system serve for terminal equipment. , To ensure that the terminal device can better receive services.
  • the terminal device that joins the communication system for the first time requires identity authentication.
  • the terminal device can perform step 1 to send the encrypted user identification code to the user identity decryption function (subscription Identifier de-concealing) function, SIDF), SIDF executes step 2 to decrypt the encrypted user identification code to obtain the user identification code, and then SIDF executes step 3 to send an instruction to query the ID of the DR corresponding to the user identification code to the DMS, and execute the step after the DMS query 4 Return the ID of the DR to the SIDF, and the SIDF performs step 5 to send the user identification code to the DR corresponding to the ID of the DR.
  • SIDF user identity decryption function
  • the DR sends the corresponding relationship between the DR and the terminal device to the DMS so that the DMS can update the corresponding relationship between the DR and the terminal device in real time.
  • the corresponding relationship includes: the corresponding relationship between the identity of the terminal device and the identity of the DR, and the terminal Correspondence between the address of the device and the address of the DR.
  • a DR corresponds to a group of terminal devices of a user (the user is a user who has signed a contract with the management agency of the communication system).
  • the terminal devices of this group may include mobile phones, tablets, and laptops.
  • the terminal equipment of may be operated and used by different users, but different users need to log in to different accounts to operate the terminal equipment of the group.
  • the user contracted with the management organization of the communication system is user 1, and the terminal equipment of user 1 includes: Mobile phone 1, tablet computer 1, notebook computer 1.
  • User 1 can log in to mobile phone 1 with account 1.1 to perform operations, or log in to tablet 1 with account 1.2 to perform operations, or log in to laptop 1 with account 1.3 to perform operations.
  • account 1.1, account 1.2, and account 1.3 are all user 1
  • the settings can be the same or different, and can be set according to the needs of the user 1, which is not specifically limited here.
  • User 2 can log in to mobile phone 1 with account 2.1 to perform operations, or log in to tablet 1 with account 2.2 to perform operations, or log in to laptop 1 with account 2.3 to perform operations.
  • Account 2.1, account 2.2, and account 2.3 are all user 2
  • the settings can be the same or different, and can be set according to the needs of the user 2, which is not specifically limited here.
  • the communication system detects that the contracted user performs an operation through the terminal device and moves, the corresponding relationship in the DMS is updated.
  • user 1 can log in to mobile phone 1 through account 1.1 to perform the operation
  • User 2 can log in to tablet 1 with account 2.2 to perform operations.
  • Notebook 1 is not in use, and user 2 carries the tablet to move from A to B.
  • the terminal device when the terminal device migrates across the MEC, it can establish a connection with the corresponding DR by referring to the method shown in FIG. 6.
  • the terminal device may first perform step 601, and when the terminal device migrates from the first MEC to the second MEC, receive the instruction information of the second MEC; the instruction information is used to indicate the association relationship between the terminal device and the second DR ;
  • the second DR is the DR corresponding to the terminal device in the second MEC.
  • Step 602 Establish a connection with the second DR according to the instruction information.
  • the terminal device can update the first storage information of the terminal device to the second storage information according to the instruction information of the second MEC;
  • the first storage information includes the identification of the terminal device and the first DR
  • the second storage information includes the corresponding relationship between the identification of the terminal device and the address of the second DR; where the first DR is the DR corresponding to the terminal device in the first MEC; the first DR The identifier of is the same as the identifier of the second DR; after that, the terminal device establishes a connection with the DR corresponding to the terminal device in the second MEC according to the second storage information.
  • the identification of terminal equipment 1 is EID1 and the corresponding DR identification is DR1
  • terminal equipment 1 initially accepts the services provided by DR under MEC1
  • terminal equipment 1 moves to MEC2
  • LCM LCM
  • a DR is reconstructed to provide a service for the terminal device 1.
  • the DR reconstructed under MEC2 and the DR under MEC1 have the same identity as DR1, but the address is different.
  • MEC2 allocates an address for the reconstructed DR, it sends instructions to the terminal device 1.
  • the terminal device 1 updates the address of the DR in the stored information, so that the terminal device 1 establishes a connection with the reconstructed DR under MEC2, so that the terminal device can be in the communication system Receive continuous service.
  • the second DR may refer to the method shown in FIG. 7 to perform step 701 to receive the indication information of the second MEC.
  • Step 702 Establish a connection with the terminal device according to the instruction information.
  • the second DR can determine the second storage information according to the instruction information; the second storage information includes the correspondence between the identification of the terminal device and the address of the second DR. 2. Establish a connection between the stored information and the terminal device.
  • the second DR receives the context information of the first DR; the context information includes operation data generated by the execution of the service by the first DR, and/or user subscription information, and/or user personal identity information, and is updated according to the context information of the first DR The context information of the second DR, so that the second DR can provide continuous services for the terminal device.
  • the second storage information of the terminal device and the storage information of the second DR also include the correspondence between the identification of the DR and the address of the second DR, the correspondence between the identification of the terminal and the address of the terminal, and the identification of the terminal.
  • the second MEC will inform the LCM to reconstruct the DR.
  • the creation tool can be a VM or Docker, or other tools. Any DR creation tool that can create a DR that meets the requirements of this application is applicable to this application.
  • the second MEC performs step 1 to allocate an address for the second DR.
  • the second DR performs step 2 to send the correspondence between the second DR and the terminal device to the DMS.
  • the second DR performs step 3 to send a request to migrate the context information of the first DR to the first DR.
  • the first DR performs step 4 to send context information to the second DR.
  • the second MEC performs step 5 to send instruction information to the second DR and the terminal device.
  • Step 6 Establish a connection between the terminal device and the second DR.
  • the LCM executes step 7 to delete the first DR.
  • the following illustrates the communication data transmission process through FIG. 9, which includes DMS, MEC1, MEC2, DR1, DR2, terminal equipment 1, terminal equipment 2, base station 1, and base station 2.
  • the storage information of the terminal device 1 and the DR1 includes: the correspondence between the identity of the DR1 and the identity of the terminal device 1, and the correspondence between the address of the DR1 and the address of the terminal device 1.
  • the storage information of the terminal device 2 and the DR2 includes: the correspondence relationship between the identity of the DR2 and the identity of the terminal device 2, and the correspondence relationship between the address of the DR2 and the address of the terminal device 2. If terminal device 1 wants to send a data packet to terminal device 2, it can send the identification of terminal device 2, the identification of terminal device 1, and the data packet to DR1.
  • DR1 can query whether the local cache can query the address of terminal device 2. If terminal device 1 and terminal device 2 have previously transmitted data packets, the address of terminal device 2 can be queried in the cache of DR1. If the cache of DR2 is If the address of terminal device 2 is not queried, the address of DR2 corresponding to the identification of terminal device 2 can be queried in DMS through DR1. DR1 can carry the address of DR2, the address of DR1, the identification of terminal device 2, and the address of terminal device 1. The identification and the data packet are sent to DR2, and DR2 can accurately send the identification and data packet of the terminal device 1 to the terminal device 2 based on the stored information. In FIG.
  • the identification of terminal device 1 is indicated by EID cn
  • the identification of terminal device 2 is indicated by EID mn
  • the address of DR1 is indicated by RLOC R1
  • the address of DR2 is indicated by RLOC R2 .
  • the embodiment of the present application also provides a server, the server is deployed on the MEC; at least one DR is deployed on the MEC, the DR corresponds to a group of terminal equipment, and a group of terminal equipment includes at least one terminal device; the DR is used for A group of terminal devices corresponding to DR provide services; DR has at least one core network function; core network functions include mobility management and/or unified data management and/or session management and/or policy management and/or access authentication and authorization .
  • the DR in the server has at least one core network function, and one DR only serves a group of terminal devices. Even if one DR fails, it will not affect other DRs to serve other groups of terminal devices, thus avoiding the occurrence of The problem of single point of failure, in turn, makes the terminal equipment better to receive services.
  • the server further includes: DMS; DMS is used to store one or more of the following correspondences: the correspondence between the identification of the DR and the address of the DR; the identification of the terminal device and the address of the terminal device Correspondence relationship between terminal equipment identification and DR identification; correspondence relationship between terminal equipment address and DR address; correspondence relationship between DR identification and terminal equipment address; terminal equipment identification Correspondence between DR and DR address; Correspondence between the user identification code carried by the terminal device and the DR identity.
  • DMS is used to store one or more of the following correspondences: the correspondence between the identification of the DR and the address of the DR; the identification of the terminal device and the address of the terminal device Correspondence relationship between terminal equipment identification and DR identification; correspondence relationship between terminal equipment address and DR address; correspondence relationship between DR identification and terminal equipment address; terminal equipment identification Correspondence between DR and DR address; Correspondence between the user identification code carried by the terminal device and the DR identity.
  • the server further includes: DDPS; the DDPS is used to store the terminal device and the operation data generated by the DR execution service corresponding to the terminal device, and/or user subscription information, and/or user personal identity information.
  • the storage information of the DR includes: the correspondence between the identity of the DR and the address of the DR, the correspondence between the identity of the terminal device and the address of the terminal device, and the relationship between the identity of the terminal device and the identity of the DR.
  • the correspondence between the address of the terminal device and the address of the DR, the correspondence between the identity of the DR and the address of the terminal device, and the correspondence between the identity of the terminal device and the address of the DR correspond to the identity of the DR and the address of the DR.
  • the storage information of the DR facilitates the DR to accurately determine the identification of its corresponding terminal device and the address of the terminal device, so as to better provide services for its corresponding terminal device.
  • the embodiment of the present application also provides a communication device provided by the embodiment of the present application. As shown in FIG. 10, the device includes a transceiving unit 101 and a creating unit 102.
  • the transceiver unit 101 is configured to receive indication information of the second MEC when the terminal equipment migrates from the first MEC to the second MEC; the indication information is used to indicate the association relationship between the terminal equipment and the second DR; the second DR It is the DR corresponding to the terminal device in the second MEC.
  • the creating unit 102 is configured to establish a connection with the second DR according to the instruction information.
  • the device is applied to a communication system.
  • the communication system includes MEC and DR.
  • At least one DR is deployed on the MEC.
  • DR corresponds to a group of terminal equipment, and a group of terminal equipment includes at least one terminal equipment;
  • DR is used for a group of terminal equipment corresponding to DR.
  • DR has at least one core network function;
  • core network functions include mobility management and/or unified data management and/or session management and/or policy management and/or access authentication and authorization.
  • connection between the terminal device and the DR can still be maintained when the terminal device undergoes cross-MEC migration, so that the terminal device can better receive services.
  • the creating unit 102 is configured to: update the first storage information of the terminal device to the second storage information according to the instruction information; and establish a connection with the second DR according to the second storage information; wherein,
  • the first storage information includes the corresponding relationship between the identification of the terminal device and the address of the first DR;
  • the second storage information includes the corresponding relationship between the identification of the terminal device and the address of the second DR;
  • the first DR is the first MEC DR corresponding to the terminal device in the
  • the terminal equipment can establish a connection with the DR through the indication information of the MEC, so that the terminal equipment can better receive services.
  • the embodiment of the present application also provides a communication device provided by the embodiment of the present application. As shown in FIG. 11, the device includes a transceiving unit 111 and a creating unit 112.
  • the transceiving unit 111 is configured to receive indication information of the second MEC; the second DR is the DR corresponding to the terminal equipment in the second MEC; the second MEC is the MEC that the terminal equipment connects after migrating from the first MEC; the indication information is used to indicate The association relationship between the terminal device and the second DR.
  • the creating unit 112 is configured to establish a connection with the terminal device according to the instruction information.
  • the device is applied to a communication system.
  • the communication system includes MEC and DR.
  • At least one DR is deployed on the MEC.
  • DR corresponds to a group of terminal equipment, and a group of terminal equipment includes at least one terminal equipment;
  • DR is used for a group of terminal equipment corresponding to DR.
  • DR has at least one core network function;
  • core network functions include mobility management and/or unified data management and/or session management and/or policy management and/or access authentication and authorization.
  • the connection between the terminal device and the DR can still be maintained when the terminal device undergoes cross-MEC migration, so that the DR can better serve the terminal device.
  • the creating unit 112 is configured to determine the second storage information according to the instruction information, and establish a connection with the terminal device according to the second storage information, where the second storage information includes the identification of the terminal device and the first storage information. Correspondence between the addresses of the two DRs.
  • the DR can establish a connection with the terminal equipment through the indication information of the MEC, so that the DR can better serve the terminal equipment.
  • the device further includes: a context information transceiver unit, configured to receive context information of the first DR; and update the context information of the second DR according to the context information of the first DR; wherein the context information includes The operation data generated by the first DR to execute the service, and/or user subscription information, and/or user personal identity information; the first DR is the DR corresponding to the terminal equipment in the first MEC; the device in the first DR can be The context information is migrated to the second DR so that the second DR can better serve the terminal device.
  • a context information transceiver unit configured to receive context information of the first DR; and update the context information of the second DR according to the context information of the first DR; wherein the context information includes The operation data generated by the first DR to execute the service, and/or user subscription information, and/or user personal identity information; the first DR is the DR corresponding to the terminal equipment in the first MEC; the device in the first DR can be The context information is migrated to the second DR so
  • FIG. 12 another schematic diagram of a communication device provided by an embodiment of this application is used to implement the operation of the terminal device and the DR in the above embodiment.
  • the communication device includes a processor 1201 and an interface 1203.
  • the communication device further includes a memory 1232.
  • the interface 1203 is used to implement communication with other devices.
  • the method executed by the terminal device and the DR in the above embodiments can be implemented by the processor 1201 calling a program stored in a memory (which may be the memory 1202 in the terminal device and the DR, or an external memory). That is, the terminal device and the DR may include a processor 1201, and the processor 1201 executes the method executed by the terminal device or the DR in the above method embodiment by calling a program in the memory.
  • the processor here may be an integrated circuit with signal processing capability, such as a CPU.
  • the apparatus for terminal equipment or DR may be realized by one or more integrated circuits configured to implement the above method. For example: one or more ASICs, or, one or more microprocessors DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. Or, the above implementations can be combined.
  • the functions/implementation process of the transceiving unit 101 and the creating unit 102 in FIG. 10 may be implemented by the processor 1201 in the communication device 1200 shown in FIG. 12 calling computer executable instructions stored in the memory 1202.
  • the function/implementation process of the transceiver unit 101 in FIG. 10 can be implemented by the processor 1201 in the communication device 1200 shown in FIG. /The implementation process can be implemented through the interface 1203 in the communication device 1200 shown in FIG. 12.
  • the functions/implementation process of the transceiving unit 111 and the creating unit 112 in FIG. 11 may be implemented by the processor 1201 in the communication device 1200 shown in FIG. 12 calling computer executable instructions stored in the memory 1202.
  • the function/implementation process of the transceiver unit 111 in FIG. 11 can be implemented by the processor 1201 in the communication device 1200 shown in FIG. 12 calling computer execution instructions stored in the memory 1202.
  • the function of the creation unit 112 in FIG. 11 /The implementation process can be implemented through the interface 1203 in the communication device 1200 shown in FIG. 12.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • 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 a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, Discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions.
  • the general-purpose processor may be a microprocessor.
  • the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
  • the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration. accomplish.
  • the steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or this Any other storage media in the field.
  • the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium.
  • the storage medium may also be integrated into the processor.
  • the processor and the storage medium can be arranged in the ASIC.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • the aforementioned functions described in this application can be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions can be stored on a computer-readable medium, or transmitted on the computer-readable medium in the form of one or more instructions or codes.
  • Computer-readable media include computer storage media and communication media that facilitate the transfer of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special computer.
  • Such computer-readable media may include, but are not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other device that can be used to carry or store instructions or data structures and Other program code media that can be read by general-purpose or special computers, or general-purpose or special processors.
  • any connection can be appropriately defined as a computer-readable medium, for example, if the software is from a website, server, or other remote source through a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or transmitted by wireless means such as infrared, wireless and microwave are also included in the definition of computer-readable media.
  • DSL digital subscriber line
  • the disks and discs include compressed disks, laser disks, optical disks, digital versatile discs (DVD), floppy disks, and Blu-ray disks. Disks usually copy data with magnets, while disks usually copy data with magnets.
  • the laser performs optical reproduction of data.
  • the combination of the above can also be contained in a computer readable medium.
  • At least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.
  • the singular expressions "a”, “an”, “said”, “above”, “the” and “this” are intended to also include expressions such as “one or more” unless the context clearly indicates The ground has the opposite direction.
  • the ordinal numbers such as “first” and “second” mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
  • These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce computer-implemented processing, so as to execute on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Abstract

本申请提供了一种通信系统、服务器、通信方法和装置，涉及通信技术领域。该通信系统包括边缘云MEC和数字映射体DR，MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR可为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；该核心网功能包括移动性管理、统一数据管理、会话管理、策略管理、接入认证、授权中的至少一种。通过在MEC上部署具有核心网功能的DR，可以为终端设备提供服务，即便某个DR出现故障也不会影响其他组中的终端设备在通信系统中接收服务，可避免出现单点失效的问题。

Description

通信系统、服务器、通信方法和装置
相关申请的交叉引用
本申请要求在2020年05月14日提交中国专利局、申请号为202010408020.8、申请名称为“通信系统、服务器、通信方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信系统、服务器、通信方法和装置。
背景技术
现有的通信系统是基于运营商的网络部署搭建的，在不同的地理区域设置核心网，其中，核心网中集成了多个网元的功能，如：移动性管理网元、会话管理网元、用户数据管理网元以及策略管理网元。可基于核心网为各区域的终端设备提供通信服务，如：终端设备甲处在区域A，则通过区域A的核心网为终端设备甲提供通信服务，若终端设备甲移动到区域B，则通过区域B的核心网为终端设备提供通信服务。
一旦某个区域的核心网出现故障，该区域内的所有终端设备则无法进行正常的通信服务，亦或者，该区域中核心网的某个网元出现故障，该区域内的所有终端设备也无法进行正常的通信服务，也即会出现单点失效的问题。
发明内容
本申请实施例提供一种通信系统、服务器、通信方法和装置，以解决通信系统中单点失效的问题。
第一方面，本申请实施例提供一种通信系统，包括：边缘云(mulit-access edge computing，MEC)和数字映射体(digital reflection，DR)，MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR用于为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；核心网功能包括移动性管理，和/或，统一数据管理和/或会话管理，和/或，策略管理，和/或，接入认证、授权。
该通信系统中DR具有至少一种核心网的功能，且一个DR仅为一组终端设备服务，即使某个DR发生故障也不会影响其他DR为其他组的终端设备进行服务。通过该方式可避免出现单点失效的问题，进而也可使得终端设备更好地在通信系统中接收服务。
在一种可能的实现方式中，通信系统还可以包括：生命周期管理系统(life cycle management，LCM)；其中，LCM用于管理DR的操作信息，DR的操作信息包括DR的生命周期以及DR的地址；其中，生命周期用于表示DR创建的时间信息和删除的时间信息。
通过LCM管理DR的操作信息，以便更好地管控DR在通信系统中的操作行为，以使DR更好地为终端设备服务。
在一种可能的实现方式中，LCM具体用于为新加入通信系统的第一终端设备创建DR； 或者，当第一终端设备从第一MEC迁移到第二MEC时，在第二MEC上为第一终端设备重构对应的DR；或者，当第一终端设备从第一MEC迁移到第二MEC时，在第二MEC上为第一终端设备重构对应的DR，且删除第一MEC上第一终端设备对应的DR；其中，第一MEC和第二MEC为不同的MEC。
通过LCM管理DR便于通过DR更好地为终端设备服务。
在一种可能的实现方式中，LCM具体用于将DR中的满足预设条件的DR确定为DR群组；其中，预设条件为同属一个指定服务群体。
通过将满足预设条件的DR确定为DR群组，便于在DR群组为各DR提供相同的服务。
在一种可能的实现方式中，LCM还可用于当DR群组中的第一DR停止为指定服务群体服务时，将第一DR删除。
通过将DR从DR群组中删除可以避免DR群组的配置资源被不属于该DR群组的DR消费，确保了DR群组的安全性。
在一种可能的实现方式中，通信系统还可包括：分布式映射系统(distributed mapping system，DMS)；DMS用于存储以下对应关系中的一种或多种：
DR的标识和DR的地址之间的对应关系；终端设备的标识和终端设备的地址之间的对应关系；终端设备的标识和DR的标识之间的对应关系；终端设备的地址和DR的地址之间的对应关系；DR的标识和终端设备的地址之间的对应关系；终端设备的标识和DR的地址之间的对应关系；终端设备携带的用户身份识别码和DR的标识之间的对应关系。
通过DMS存储各对应关系，以便通过各对应关系更快地找到终端设备或DR。
在一种可能的实现方式中，通信系统还可包括：分布式数据管理系统(distributed data provisioning system，DDPS)；DDPS用于存储终端设备以及终端设备对应的DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息。
通信系统通过DDPS存储数据信息以便数据可以被随时随地地访问。
在一种可能的实现方式中，DR的存储信息包括：DR的标识和DR的地址之间的对应关系、终端设备的标识和终端设备的地址之间的对应关系、终端设备的标识和DR的标识之间的对应关系、终端设备的地址和DR的地址之间的对应关系、DR的标识和终端设备的地址之间的对应关系、终端设备的标识和DR的地址之间的对应关系。
通过DR的存储信息便于DR准确地确定其对应的终端设备的标识和终端设备的地址，以便更好地为其对应的终端设备提供服务。
第二方面，本申请实施例提供一种服务器，服务器被部署于MEC；MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR用于为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；核心网功能包括移动性管理，和/或，统一数据管理，和/或，会话管理，和/或，策略管理和/或接入认证、授权。
该服务器中DR具有至少一种核心网的功能，且一个DR仅为一组终端设备服务，即使某个DR发生故障也不会影响其他DR为其他组的终端设备进行服务，也就避免了出现单点失效的问题，进而可使得终端设备更好地在通信系统中接收服务。
在一种可能的实现方式中，服务器还包括：DMS；DMS用于存储以下对应关系中的一种或多种：DR的标识和DR的地址之间的对应关系；终端设备的标识和终端设备的地址之间的对应关系；终端设备的标识和DR的标识之间的对应关系；终端设备的地址和DR 的地址之间的对应关系；DR的标识和终端设备的地址之间的对应关系；终端设备的标识和DR的地址之间的对应关系；终端设备携带的用户身份识别码和DR的标识之间的对应关系。
通过DMS存储各对应关系，以便通过各对应关系更快地找到终端设备或DR。
在一种可能的实现方式中，服务器还包括：DDPS；DDPS用于存储终端设备以及终端设备对应的DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息。
通过DDPS存储数据信息以便数据可以被随时随地地访问。
在一种可能的实现方式中，DR的存储信息包括：DR的标识和DR的地址之间的对应关系、终端设备的标识和终端设备的地址之间的对应关系、终端设备的标识和DR的标识之间的对应关系、终端设备的地址和DR的地址之间的对应关系、DR的标识和终端设备的地址之间的对应关系、终端设备的标识和DR的地址之间的对应关系。
通过DR的存储信息便于DR准确地确定其对应的终端设备的标识和终端设备的地址，以便更好地为其对应的终端设备提供服务。
第三方面，本申请实施例提供一种通信方法，该方法包括在终端设备从第一MEC迁移到第二MEC的情况下，终端设备接收第二MEC的指示信息；指示信息用于指示终端设备与第二DR之间的关联关系；第二DR为第二MEC中与终端设备对应的DR；终端设备根据指示信息与第二DR建立连接。
该方法可应用于通信系统，通信系统包括MEC和DR，MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR用于为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；核心网功能包括移动性管理，和/或，统一数据管理，和/或，会话管理，和/或，策略管理，和/或，接入认证、授权。
通过通信方法可确保在终端设备发生跨MEC迁移时，依然可保持终端设备和DR间的连接，以便更好地为接收服务。
在一种可能的实现方式中，终端设备根据指示信息，将终端设备的第一存储信息更新为第二存储信息；第一存储信息包括终端设备的标识与第一DR的地址之间的对应的关系；第二存储信息包括终端设备的标识与第二DR的地址之间的对应关系；其中，第一DR为第一MEC中与终端设备对应的DR；终端设备根据第二存储信息与第二DR建立连接。
通过该方式终端设备可通过MEC的指示信息与DR建立连接，以便更好地为接收服务。
第四方面，本申请实施例提供一种通信方法，该方法包括第二DR接收第二MEC的指示信息；第二DR为第二MEC中与终端设备对应的DR；第二MEC为终端设备从第一MEC迁移后连接的MEC；指示信息用于指示终端设备与第二DR之间的关联关系；第二DR根据指示信息，与终端设备建立连接。
该方法应用于通信系统，通信系统包括MEC和DR，MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR用于为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；核心网功能包括移动性管理，和/或，统一数据管理，和/或，会话管理，和/或，策略管理，和/或，接入认证、授权。
通过通信方法可确保在终端设备发生跨MEC迁移时，依然可保持终端设备和DR间的连接，以便DR更好地为终端设备服务。
在一种可能的实现方式中，第二DR根据指示信息，确定第二存储信息；第二存储信 息包括终端设备的标识与第二DR的地址之间的对应关系；第二DR根据第二存储信息与终端设备建立连接。
通过该方式DR可通过MEC的指示信息与终端设备建立连接，以便DR更好地为终端设备服务。
在一种可能的实现方式中，第二DR接收第一DR的上下文信息；上下文信息包括第一DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息；第一DR为第一MEC中与终端设备对应的DR；第二DR根据第一DR的上下文信息更新第二DR的上下文信息。
通过该方式可将第一DR中的上下文信息迁移到第二DR中，以便第二DR可以更好地为终端设备服务。
第五方面，本申请实施例提供一种通信装置，该装置包括：收发单元和创建单元。其中，收发单元，用于在终端设备从第一MEC迁移到第二MEC的情况下，接收第二MEC的指示信息；指示信息用于指示终端设备与第二DR之间的关联关系；第二DR为第二MEC中与终端设备对应的DR；创建单元，用于根据指示信息与第二DR建立连接。
该装置应用于通信系统，通信系统包括边缘云MEC和数字映射体DR，MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR用于为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；核心网功能包括移动性管理，和/或，统一数据管理，和/或，会话管理，和/或，策略管理，和/或，接入认证、授权。
通过该装置可在终端设备发生跨MEC迁移的时候，依然可保持终端设备和DR间的连接，以便终端设备更好地接收服务。
在一种可能的实现方式中，所述创建单元，可根据所述指示信息，将所述终端设备的第一存储信息更新为第二存储信息；并根据所述第二存储信息与所述第二DR建立连接。其中，所述第一存储信息包括所述终端设备的标识与第一DR的地址之间的对应的关系；所述第二存储信息包括所述终端设备的标识与第二DR的地址之间的对应关系；所述第一DR为所述第一MEC中与所述终端设备对应的DR。
通过该装置终端设备可通过MEC的指示信息与DR建立连接，以便更好地为接收服务。
第六方面，本申请实施例提供一种通信装置，该装置包括：收发单元和创建单元。其中，收发单元，用于接收第二MEC的指示信息；第二DR为第二MEC中与终端设备对应的DR；第二MEC为终端设备从第一MEC迁移后连接的MEC；指示信息用于指示终端设备与第二DR之间的关联关系；创建单元，用于根据指示信息，与终端设备建立连接。
该装置应用于通信系统，通信系统包括边缘云MEC和数字映射体DR，MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR用于为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；核心网功能包括移动性管理，和/或，统一数据管理，和/或，会话管理，和/或，策略管理，和/或，接入认证、授权；
通过该装置可在终端设备发生跨MEC迁移的时候，依然可保持终端设备和DR间的连接，以便DR更好地为终端设备服务。
在一种可能的实现方式中，所述创建单元可根据所述指示信息，确定第二存储信息； 并根据所述第二存储信息与所述终端设备建立连接；其中，所述第二存储信息包括所述终端设备的标识与第二DR的地址之间的对应关系。
通过该装置DR可通过MEC的指示信息与终端设备建立连接，以便DR更好地为终端设备服务。
在一种可能的实现方式中，所述装置还包括：上下文收发单元，用于接收第一DR的上下文信息；并根据所述第一DR的上下文信息更新所述第二DR的上下文信息；其中，所述上下文信息包括所述第一DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息；所述第一DR为所述第一MEC中与所述终端设备对应的DR。
通过该装置可将第一DR中的上下文信息迁移到第二DR中，以便第二DR可以更好地为终端设备服务。
第七方面，本申请实施例提供一种通信装置，该装置包括处理器和存储器；该存储器用于存储计算机执行指令，当该装置运行时，该处理器执行该存储器存储的该计算机执行指令，以使该装置执行上述第三方面或第四方面任一实施例所述的方案。
第八方面，本申请实施例提供一种计算机可读存储介质，计算机存储介质中存储有计算机可读指令，当计算机读取并执行计算机可读指令时，使得计算机执行上述第三方面或第四方面任一实施例所述的方案。
第九方面，本申请实施例提供一种计算机程序产品，当计算机读取并执行计算机程序产品时，使得计算机执行如执行上述第三方面或第四方面任一实施例所述的方案。
附图说明
图1示出了一种通信系统的架构示意图；
图2示出了本申请实施例提供的通信系统的架构示意图；
图3示出了本申请实施例提供的DR操作功能项的示意图；
图4示出了本申请实施例提供的通信系统的架构示意图；
图5示出了本申请实施例提供的用户身份认证的示意图；
图6示出了本申请实施例提供的通信方法的流程示意图；
图7示出了本申请实施例提供的通信方法的流程示意图；
图8示出了本申请实施例提供的通信方法的示意图；
图9示出了本申请实施例提供的数据传输的流程示意图；
图10示出了本申请实施例提供的通信装置的结构示意图；
图11示出了本申请实施例提供的通信装置的结构示意图；
图12示出了本申请实施例提供的通信装置的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行详尽描述。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)终端设备，是一种可以向用户提供语音和/或数据连通性的设备。例如，终端设备包括具有无线连接功能的手持式设备、车载设备等。目前，终端设备可以是：手机(mobile  phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端，或智慧家庭(smart home)中的无线终端等。
(2)网络设备，是一种为终端设备提供无线通信功能的设备，包括但不限于：第五代移动通信技术(5th generation mobile networks，5G)中的gNB、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(baseband unit，BBU)、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心等。本申请中的基站还可以是未来可能出现的其他通信系统中为所述终端提供无线通信功能的设备。
(3)核心网，是由一个或多个网元构成的，可能包括：移动性管理网元、会话管理网元、用户数据管理网元以及策略管理网元，主要用于数据的处理以及路由业务请求地址的获取。
(4)MEC，是分布在网络边缘侧，为终端设备提供实时数处理、分析决策的小规模云数据中心。
(5)DR，相当于用户的一组终端设备在数字世界的代理，一个数字映射体仅为一个用户的一组终端设备进行通信服务，具有至少一种核心网的功能，与用户的一组终端设备通信连接，可为用户就近分配网络资源，以便更好地为用户服务。
如图1所示，为一种通信系统的架构示意图。该通信系统包括：核心网、多个网络设备、多个终端设备以及云服务器，需要说明的是，该云服务器可以为应用程序(application program，APP)厂商的服务器，也可以为运营商的服务器。用户可通过终端设备向网络设备发送业务请求，之后通过网络设备将业务请求发送到核心网，核心网在云服务器中调用用户所需的服务，如：用户甲的业务请求为下载APP1，则通过用户甲的终端设备将下载APP1的业务请求发送至网络设备，网络设备将该下载APP1的业务请求发送给核心网，核心网调用APP1所在云服务器的地址，并将该地址准确地发送给用户甲的终端设备，以便用户甲可以准确地下载APP1；亦或者用户甲的业务请求为与用户乙进行通话，则通过用户甲的终端设备将业务请求发送至网络设备，网络设备将该与用户乙进行通话的业务请求发送给核心网，核心网调用运营商的服务器执行与用户乙进行通话的业务请求，用户甲和用户乙实现通话。
但是，该通信系统中，核心网需要为多个网络设备服务，故而核心网通常部署在能覆盖大量网络设备的位置。但是某些距离核心网距离较远的网络设备虽然处于核心网覆盖的区域，获取的通信服务质量可能并不太好。此外，一旦核心网出现故障，其覆盖的多个网络设备均无法为终端设备服务，会出现单点失效的问题。
基于此，本申请实施例提供了一种通信系统，该通信系统可解决单点失效的问题，以便更好地为终端设备提供服务。
下面结合附图2至图12，对本申请提出的通信系统进行详细介绍。
图2示出了本申请实施例提供的一种通信系统的架构示意图，该通信系统中包括多个 MEC和多个DR。进一步，可选地，该通信系统还可包括多个网络设备、多个终端设备及云服务器。其中，MEC上部署有至少一个DR，为了便于方案的说明，图2中以MEC1中部署三个DR，MEC2中部署两个DR为例。但实际应用时，每个MEC上可以部署多个DR，在此不再详细说明。DR具有核心网功能，其中，核心网功能包括以下中的至少一种：移动性管理；统一数据管理；会话管理；策略管理；接入认证、授权。
示例性地说明，移动性管理可指对终端设备的位置信息、安全性以及业务连续性方面的管理，使终端设备无论移动到什么位置都能进行通信服务；统一数据管理可对终端设备的操作数据的管理。会话管理可实现5G中会话管理功能(session management function，SMF)网元的功能；策略管理为对用户所需业务的服务质量进行管控，从而为用户提供差异化的服务；接入认证、授权为对接入通信系统的用户的进行身份认证和对接入通信系统的用户的终端设备授权。
需要说明的是，在用户与通信系统的管理机构(也即运营商)签约后，可将用户的终端设备加入通信系统接收服务，该终端设备可与一个DR对应，之后用户其他终端设备需要通过通信系统接收服务时，也通过该DR接收服务，DR可对应一组终端设备，也即一个DR可为一组终端设备提供服务。例如，与通信系统的管理机构签约的用户甲的终端设备包括：手机、平板电脑、笔记本电脑，可将用户甲的终端设备构成一组终端设备与DR1对应。可通过DR1为用户甲的手机提供通话服务；可通过DR1调用网站对应的服务器获取网站地址，以便通过用户甲的平板电脑或笔记本电脑可以访问到网站的地址。
由于一个DR是为一组终端设备服务的，一旦某个DR发生故障，仅仅该DR对应的一组终端设备不能通过通信系统接收服务，其他DR对应的其他组的终端设备依然可通过通信系统接收服务，故此也就避免了单点失效的问题。如图2示出的MEC1上部署有DR1、DR2以及DR3，MEC2上部署有DR4以及DR5，其中，DR1为用户甲的一组终端设备服务，DR2为用户乙的一组终端设备服务，DR3为用户丙的一组终端设备服务，即使DR1发生了故障也并不影响DR2为用户乙的一组终端设备提供服务，也并不影响DR3为用户丙的一组终端设备提供服务，也即避免了单点失效的问题。
示例性说明，为了更好地管理DR，本申请实施例提供的通信系统还可以包括：LCM，LCM主要是用于管理DR的操作信息，DR的操作信息可包括DR的生命周期以及DR的地址；其中，生命周期用于表示DR创建的时间信息和删除的时间信息。
需要说明的是，LCM记录了DR从创建的时间点到DR删除的时间点DR在通信系统中的操作信息。图3示意性的描述了DR的操作信息的操作功能项，该操作功能项中可以但不限于包括下中的至少一种：DR的标识；DR的地址；创建DR；删除DR；复制DR；为DR组建DR群组；将DR从DR群组中解绑；重构DR；迁移DR的上下文信息；对DR赋予学习能力。
其中，DR的标识为DR在通信系统中的唯一身份标识，可通过可读编码来表示，也可通过其他编码表示，具体采用什么方式表示DR的标识本申请在此不作具体的限定，凡是在通信系统中按照预设编码规则确定的编码来表示DR身份的标识均适用于与本申请。DR的地址为设备可路由的地址，也即DR在MEC上的地址，任一设备通过访问DR的地址均可以准确地找到DR。如：DR1的在MEC上的地址为RLOC R1，终端设备可通过RLOC R1找到DR1，网络设备也可通过RLOC R1找到DR1。创建DR也即为新加入通信系统的第一终端设备创建DR，用户与该通信系统的管理机构完成签约后，通过LCM为该签约用户的终端设备对应 生成一个DR，并为该DR配置标识。此外，LCM还记录了DR的地址，以便更好地为签约用户的终端设备提供服务。
若当通信系统中某个签约用户与该通信系统的管理机构解约，可将该用户的终端设备对应的DR删除。复制DR是在对DR备份时，复制DR，以避免DR中的数据丢失。为DR组建DR群组，也即将DR中满足预设条件的DR确定为DR群组；其中，预设条件为同属一个指定服务群体，如：将同一公司的用户的终端设备对应的DR组建成DR群组，亦或者将同一学校的用户的终端设备对应的DR组建成DR群组，可向该DR群组的终端设备提供统一的业务，如推送某一网站的技术期刊至DR群组，使得DR群组中的每个DR均可接收到该推送的技术期刊。但当DR群组中的第一DR停止为指定服务群体服务时，将第一DR删除。如：某公司的用户离职，可将该用户对应的DR从DR群组中删除，从DR群组中删除的DR将不能接收DR群组提供的服务，故此确保了DR群组的安全性。
当第一终端设备从第一MEC迁移到第二MEC时，在第二MEC上为第一终端设备重构对应的DR，且删除第一MEC上第一终端设备对应的DR，其中，第一MEC和第二MEC为不同的MEC。第一MEC上与第一终端设备对应的DR与第二MEC上重构的与第一终端设备对应的DR的标识是相同，仅仅是地址不同。如：终端设备1对应的DR的标识为DR1，终端设备1从MEC1迁移到MEC2，在MEC1上对应的DR，DR的标识为DR1，DR的地址为RLOC R1；在MEC2上对应的DR，DR的标识为DR1，DR的地址为RLOC R1’。
此外，若用户甲携带终端设备从甲地移动到乙地，用户甲的终端设备从甲地的MEC迁移到乙地的MEC，用户甲未发生移动时需要甲地的MEC上的DR为用户甲的终端设备进行服务，当用户甲移动到乙地时，需在乙地的MEC上重构与用户甲的终端设备对应的DR，并将甲地的MEC上的DR删除。此外，在删除甲地的MEC上的DR之前，还需要将甲地的MEC上的DR的上下文信息迁移到乙地的MEC上的DR中，以便通过乙地的MEC上的DR可以为用户甲的终端设备提供服务，其中，甲地的MEC上的DR的上下文信息包括甲地的MEC上的DR执行业务产生的操作数据、用户甲的签约信息、用户甲个人身份信息。
另外，当第一终端设备从第一MEC迁移到第二MEC时，还可能在第二MEC上为第一终端设备重构对应的DR。如：用户乙的常驻地为A地，在A地的MEC上对应有用户乙的终端设备对应的DR，用户乙临时出差去B地，可在B地的MEC上为用户乙的终端设备重构DR，在用户乙出差去B地时，禁用A地的MEC上的DR通过B地的MEC上的DR为用户乙的终端设备服务；在用户乙从B地回到A地时，则禁用B地的MEC上的DR或删除B地的MEC上的DR，通过A地的MEC上的DR为用户乙的终端设备服务。
为了更好地通过DR为终端设备服务，还可对DR赋予学习能力，如：语言学习能力、图文识别能力、分析和计算的能力等，在此不作具体限定，凡是可通过学习获取的能力均适用于本申请。如：用户来到一个陌生的国家，不能进行良好地语言沟通，则可借助DR的语言学习能力与当地的居民进行良好地沟通。
示例性说明，为了使得通信系统中的各设备之间可以进行良好地通信服务，该通信系统还包括：DMS，该DMS分布式部署于MEC上，其中，DMS，用于存储以下对应关系中的一种或多种：DR的标识和DR的地址之间的对应关系；终端设备的标识和终端设备的地址之间的对应关系；终端设备的标识和DR的标识之间的对应关系；终端设备的地址 和DR的地址之间的对应关系；DR的标识和终端设备的地址之间的对应关系；终端设备的标识和DR的地址之间的对应关系；终端设备携带的用户身份识别码和DR的标识之间的对应关系。其中，DR的标识和DR的地址之间的对应关系也即DR在通信系统中唯一身份认证标识和DR可被设备路由的地址间的对应关系，如：已知DR的标识为DR1，通过在DMS中查询DR的标识和DR的地址之间的对应关系，可以确定DR的地址；亦或者，已知DR的地址为RLOC R1，通过在DMS中查询DR的标识和DR的地址之间的对应关系，可以确定DR的标识。
在一种可能的实现方式中，终端设备的标识和终端设备的地址之间的对应关系也即终端设备在通信系统中的标识和MEC为终端设备分配的本地地址间的对应关系，如：已知终端设备的标识为EID 1，通过在DMS中查询终端设备的标识和终端设备的地址之间的对应关系，可以确定终端设备的地址；亦或者，已知终端设备的地址为LLOC D1，通过在DMS中查询终端设备的标识和终端设备的地址之间的对应关系，可以确定终端设备的标识。
在一种可能的实现方式中，终端设备的标识和DR的标识之间的对应关系，也即终端设备在通信系统中的标识和DR在通信系统中唯一身份认证标识间的对应关系，如：已知终端设备的标识为EID 1，通过在DMS中查询终端设备的标识和DR的标识之间的对应关系，可以确定DR的标识；亦或者，已知DR的标识为DR1，通过在DMS中查询终端设备的标识和DR的标识之间的对应关系，可以确定终端设备的标识。
在一种可能的实现方式中，终端设备的地址和DR的地址之间的对应关系也即MEC为终端设备分配的本地地址和DR可被设备路由的地址间的对应关系，如：已知终端设备的地址为LLOC D1，通过在DMS中查询终端设备的地址和DR的地址之间的对应关系，可以确定DR的地址；亦或者，已知DR的地址为RLOC R1，通过在DMS中查询终端设备的地址和DR的地址之间的对应关系，可以确定终端设备的地址。
在一种可能的实现方式中，DR的标识和终端设备的地址之间的对应关系，也即DR在通信系统中唯一身份认证标识和MEC为终端设备分配的本地地址的对应关系，如：已知DR的标识为DR1，通过在DMS中查询DR的标识和终端设备的地址之间的对应关系，可以确定终端设备的地址；亦或者，已知终端设备的地址为LLOC D1，通过在DMS中查询DR的标识和终端设备的地址之间的对应关系，可以确定DR的标识。
在一种可能的实现方式中，终端设备的标识和DR的地址之间的对应关系，也即终端设备在通信系统中的标识和DR可被设备路由的地址间的对应关系，如：已知终端设备的标识为EID 1，通过在DMS中查询终端设备的标识和DR的地址之间的对应关系，可以确定DR的地址；亦或者，已知DR的地址为RLOC R1，通过在DMS中查询终端设备的标识和DR的地址之间的对应关系，可以确定终端设备的标识。
在一种可能的实现方式中，终端设备携带的用户身份识别码和DR的标识之间的对应关系，也即终端设备在通信系统中唯一的身份认证标识和DR在通信系统中唯一身份认证标识间的对应关系，通过该对应关系可准确地确定终端设备携带的用户身份识别码和DR的标识。该终端设备携带的用户身份识别码在第四代移动通信技术(the 4th generation mobile communication technologe，4G)中相当于国际移动用户识别码(international mobile subscriber identity，IMSI)，在第5G中相当于国际移动用户识别码(subscription permanent identifier，SUPI)。如：已知终端设备携带的用户身份识别码为***，通过在DMS中查询终端设备携带的用户身份识别码和DR的标识之间的对应关系，可以确定DR的标识；亦 或者，已知DR的标识为DR1，通过在DMS中查询终端设备携带的用户身份识别码和DR的标识之间的对应关系，可以确定终端设备携带的用户身份识别码。
需要说明的是，DMS存储的对应关系是实时更新的，以确保通过查询DMS中存储的对应关系的准确性，以便更好地为通信系统中的设备服务。
示例性说明，为了使得通信系统中的各设备之间可以进行良好地通信服务，该通信系统还包括：DDPS，其中，DDPS，用于存储终端设备以及终端设备对应的DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息。
需要说明的是，终端设备的操作数据也即终端设备执行通话、上网等操作行为产生的操作数据；终端设备对应的DR执行业务产生的操作数据也即DR迁移上下文、DR获取服务时产生的操作数据；用户的签约信息也即用户初次加入通信系统时与通信系统的管理机构签约时的信息，基于该信息用户的终端设备才可通过通信系统接收服务。通过DDPS存储数据信息以便数据可以被随时随地地访问。
如图4所示，为本申请实施例提供的通信系统的架构示意图，通信系统可包括：MEC、DR、LCM、DMS、DDPS，图4仅通过4个MEC进行示意性描述通信系统中的MEC，其中，DR部署于MEC上，DMS和DDPS分布式部署于MEC上，每个MEC下可覆盖多个网络设备，用户的终端设备通过网络设备接收通信系统提供的服务。基于上文的描述LCM用于管理DR的操作信息，DMS用于存储对应关系，DDPS存储数据，在此不再详细说明，通过通信系统中的MEC、DR、LCM、DMS以及DDPS为终端设备服务，以确保终端设备可以更好地接收服务。
基于上述的通信系统，针对初次加入通信系统的终端设备，需要进行身份认证，如图5所示，终端设备可执行步骤1发送加密的用户身份识别码给用户身份解密功能(subscription Identifier de-concealing function，SIDF)，SIDF执行步骤2对加密的用户身份识别码进行解密得到用户身份识别码，之后SIDF执行步骤3发送查询用户身份识别码对应的DR的标识的指令至DMS，DMS查询后执行步骤4返回DR的标识至SIDF，SIDF执行步骤5发送用户身份识别码至DR的标识对应的DR。之后通过MEC发送指示信息以使DR和终端设备中均存储有DR的标识和终端设备的标识的对应关系、DR的地址和终端设备的地址的对应关系，以便终端设备可以与其对应的DR直接进行通信连接，亦或者DR可以与其对应的终端设备直接进行通信连接，也即通过MEC的指示信息将DR和终端设备动态关联起来，无论DR对应的终端设备移动到什么位置都可以准确关联。之后DR将DR与终端设备间的对应关系发送至DMS，以便DMS实时更新DR与终端设备间的对应关系，其中，该对应关系包括：终端设备的标识和DR的标识之间的对应关系、终端设备的地址和DR的地址之间的对应关系。
示例性说明，上述的通信系统中一个DR对应用户(该用户为与通信系统的管理机构签约的用户)的一组终端设备，该组的终端设备可包括手机、平板电脑和笔记本电脑，该组的终端设备可能被不同的用户操作使用，但是不同的用户需要登录不同的账号才能操作该组的终端设备，例如：与通信系统的管理机构签约的用户为用户1，用户1的终端设备包括：手机1、平板电脑1、笔记本电脑1。用户1可通过账号1.1登录手机1执行操作，也可通过账 号1.2登录平板电脑1执行操作，还可通过账号1.3登录笔记本电脑1执行操作，其中，账号1.1、账号1.2以及账号1.3均是用户1设置的，可以相同也可以不相同，可根据用户1需求进行设置，在此不作具体限定。用户2可通过账号2.1登录手机1执行操作，也可通过账号2.2登录平板电脑1执行操作，还可通过账号2.3登录笔记本电脑1执行操作，其中，账号2.1、账号2.2以及账号2.3均是用户2设置的，可以相同也可以不相同，可根据用户2需求进行设置，在此不作具体限定。
需要说明的是，当通信系统检测到签约的用户通过终端设备执行操作时且发生移动时，DMS中的对应关系才进行更新，接续上述的示例如：用户1可通过账号1.1登录手机1执行操作，用户2可通过账号2.2登录平板电脑1执行操作，笔记本电脑1处于未使用状态，用户2携带平板电脑从A地移动到B地，并不需要更新DMS中的用户1的一组终端设备与对应DR的对应关系；当用户1携带手机1从A地迁移到B地，未发生跨MEC移动时，则需要在DMS中更新用户1的终端设备的地址；当用户1携带手机1从A地迁移到B地，发生跨MEC移动时，则需要在DMS中更新用户1的终端设备的地址、用户1的终端设备对应的DR的地址。
另外，终端设备跨MEC迁移时，可参照图6所示的方法与对应的DR建立连接。终端设备可先执行步骤601，在终端设备从第一MEC迁移到第二MEC的情况下，接收第二MEC的指示信息；所述指示信息用于指示终端设备与第二DR之间的关联关系；第二DR为第二MEC中与所述终端设备对应的DR。
步骤602，根据指示信息与第二DR建立连接。
需要说明的是，步骤602在执行时，终端设备可根据第二MEC的指示信息，将终端设备的第一存储信息更新为第二存储信息；第一存储信息包括终端设备的标识与第一DR的地址之间对应的关系；第二存储信息包括终端设备的标识与第二DR的地址之间对应关系；其中，第一DR为第一MEC中与所述终端设备对应的DR；第一DR的标识与第二DR的标识相同；之后终端设备根据第二存储信息与第二MEC中与终端设备对应的DR建立连接。如：终端设备1的标识为EID1其对应的DR的标识为DR1，终端设备1初始在MEC1下接受DR提供的服务，之后终端设备1移动到MEC2，则需要通过LCM为终端设备1在MEC2下重构一个DR为终端设备1提供服务，该在MEC2下重构的DR与MEC1下的DR的标识是一致的均为DR1，但是地址是不同的。MEC2为重构的DR分配地址后，发送指示信息给终端设备1，终端设备1更新存储信息中DR的地址，从而使得终端设备1与MEC2下重构的DR建立连接，以便终端设备在通信系统中接收连续性地服务。
相应地，第二DR可参阅图7所示的方法，执行步骤701，接收第二MEC的指示信息。
步骤702，根据指示信息，与终端设备建立连接。
需要说明的是，步骤702在执行时，第二DR可根据指示信息，确定第二存储信息；第二存储信息包括终端设备的标识与第二DR的地址之间的对应关系，之后可根据第二存储信息与终端设备建立连接。
此外，第二DR接收第一DR的上下文信息；上下文信息包括第一DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息，并根据第一DR的上下文信息更新第二DR的上下文信息，以使第二DR可以为终端设备提供连续性地服务。
终端设备的第二存储信息和第二DR的存储信息中还包括DR的标识和第二DR的地址之间的对应关系、终端设备的标识和终端设备的地址之间的对应关系、终端设备的标识和DR的标识之间的对应关系、终端设备的地址和第二DR的地址之间的对应关系、DR的 标识和终端设备的地址之间的对应关系，以便终端设备可以准确地确定其对应的DR，以便终端设备更好地接收服务。
在执行时，可参照图8所示的示意图，通信系统在确定终端设备从第一MEC迁移到第二MEC时，第二MEC会告知LCM重构DR，LCM通过DR创建工具生成DR后，该创建工具可以为VM也可以为Docker，亦或者其他工具，凡是可创建符合本申请要求的DR的DR创建工具均适用于本申请。第二MEC执行步骤1为第二DR分配地址。第二DR执行步骤2将第二DR与终端设备的对应关系发送至DMS。之后第二DR执行步骤3向第一DR发送迁移第一DR的上下文信息的请求。第一DR执行步骤4发送上下文信息至第二DR。第二MEC执行步骤5向第二DR和终端设备发送指示信息。步骤6终端设备与第二DR间建立连接。LCM执行步骤7将第一DR删除。
下面通过图9示意通信数据的传输流程，该示意图中包括DMS、MEC1、MEC2、DR1、DR2、终端设备1、终端设备2、基站1以及基站2。终端设备1和DR1的存储信息包括：DR1的标识和终端设备1的标识的对应关系、DR1的地址和终端设备1的地址的对应关系。终端设备2和DR2的存储信息包括：DR2的标识和终端设备2的标识的对应关系、DR2的地址和终端设备2的地址的对应关系。终端设备1若要向终端设备2发送数据包，可将终端设备2的标识、终端设备1的标识、数据包发送给DR1。DR1可查询本地的缓存是否能够查询到终端设备2的地址，若终端设备1和终端设备2之前传输过数据包，则可以在DR1的缓存中查询到终端设备2的地址，若DR2的缓存中并未查询到终端设备2的地址，则可通过DR1在DMS中查询终端设备2的标识对应的DR2的地址，DR1可携带DR2的地址、DR1的地址、终端设备2的标识、终端设备1的标识以及数据包发送给DR2，DR2基于其存储信息可将终端设备1的标识、数据包准确发送至终端设备2。图8中，终端设备1的标识通过EID cn示意，终端设备2的标识通过EID mn示意，DR1的地址通过RLOC R1示意，DR2的地址通过RLOC R2示意。
需要说明的是，本申请实施例还提供一种服务器，服务器被部署于MEC；MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR用于为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；核心网功能包括移动性管理和/或统一数据管理和/或会话管理和/或策略管理和/或接入认证、授权。
该服务器中DR具有至少一种核心网的功能，且一个DR仅为一组终端设备服务，即使某个DR发生故障也不会影响其他DR为其他组的终端设备进行服务，也就避免了出现单点失效的问题，进而也就使得终端设备更好地接收的服务。
示例性地说明，服务器还包括：DMS；DMS用于存储以下对应关系中的一种或多种：DR的标识和DR的地址之间的对应关系；终端设备的标识和终端设备的地址之间的对应关系；终端设备的标识和DR的标识之间的对应关系；终端设备的地址和DR的地址之间的对应关系；DR的标识和终端设备的地址之间的对应关系；终端设备的标识和DR的地址之间的对应关系；终端设备携带的用户身份识别码和DR的标识之间的对应关系。
通过DMS存储各对应关系，以便通过各对应关系更快地找到终端设备或DR。
示例性地说明，服务器还包括：DDPS；DDPS用于存储终端设备以及终端设备对应的DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息。
通过DDPS存储数据信息以便数据可以被随时随地地访问。
示例性地说明，DR的存储信息包括：DR的标识和DR的地址之间的对应关系、终端 设备的标识和终端设备的地址之间的对应关系、终端设备的标识和DR的标识之间的对应关系、终端设备的地址和DR的地址之间的对应关系、DR的标识和终端设备的地址之间的对应关系、终端设备的标识和DR的地址之间的对应关系。
通过DR的存储信息便于DR准确地确定其对应的终端设备的标识和终端设备的地址，以便更好地为其对应的终端设备提供服务。
基于同一技术构思，本申请实施例还提供本申请实施例提供一种通信装置，如图10所示，该装置包括：收发单元101以及创建单元102。
收发单元101，用于在终端设备从第一MEC迁移到第二MEC的情况下，接收第二MEC的指示信息；指示信息用于指示终端设备与第二DR之间的关联关系；第二DR为第二MEC中与终端设备对应的DR。
创建单元102，用于根据指示信息与第二DR建立连接。
该装置应用于通信系统，通信系统包括MEC和DR，MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR用于为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；核心网功能包括移动性管理和/或统一数据管理和/或会话管理和/或策略管理和/或接入认证、授权。
通过该装置可在终端设备发生跨MEC迁移时，依然可保持终端设备和DR间的连接，以便终端设备更好地接收服务。
在一种可能的实现方式中，创建单元102，用于：根据指示信息，将终端设备的第一存储信息更新为第二存储信息；并根据第二存储信息与第二DR建立连接；其中，第一存储信息包括终端设备的标识与第一DR的地址之间的对应的关系；第二存储信息包括终端设备的标识与第二DR的地址之间的对应关系；第一DR为第一MEC中与终端设备对应的DR。
通过该装置终端设备可通过MEC的指示信息与DR建立连接，以便终端设备更好地接收服务。
本申请实施例还提供本申请实施例提供一种通信装置，如图11所示，该装置包括：收发单元111以及创建单元112。
收发单元111，用于接收第二MEC的指示信息；第二DR为第二MEC中与终端设备对应的DR；第二MEC为终端设备从第一MEC迁移后连接的MEC；指示信息用于指示终端设备与第二DR之间的关联关系。
创建单元112，用于根据指示信息，与终端设备建立连接。
该装置应用于通信系统，通信系统包括MEC和DR，MEC上部署有至少一个DR，DR对应一组终端设备，一组终端设备至少包括一个终端设备；DR用于为DR对应的一组终端设备提供服务；DR具有至少一种核心网功能；核心网功能包括移动性管理和/或统一数据管理和/或会话管理和/或策略管理和/或接入认证、授权。
通过该装置可在终端设备发生跨MEC迁移时，依然可保持终端设备和DR间的连接，以便DR更好地为终端设备服务。
在一种可能的实现方式中，创建单元112，用于根据指示信息，确定第二存储信息，并根据第二存储信息与终端设备建立连接，其中，第二存储信息包括终端设备的标识与第 二DR的地址之间的对应关系。
通过该装置DR可通过MEC的指示信息与终端设备建立连接，以便DR更好地为终端设备服务。
在一种可能的实现方式中，该装置还包括：上下文信息收发单元，用于接收第一DR的上下文信息；并根据第一DR的上下文信息更新第二DR的上下文信息；其中，上下文信息包括第一DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息；第一DR为第一MEC中与终端设备对应的DR；通过该装置可将第一DR中的上下文信息迁移到第二DR中，以便第二DR可以更好地服务终端设备。
参考图12，为本申请实施例提供的又一种通信装置示意图，用于实现以上实施例中终端设备和DR的操作。如图12所示，该通信装置包括：处理器1201和接口1203，可选的，该通信装置还包括存储器1232。接口1203用于实现与其他设备进行通信。
以上实施例中终端设备和DR执行的方法可以通过处理器1201调用存储器(可以是端设备和DR中的存储器1202，也可以是外部存储器)中存储的程序来实现。即终端设备和DR可以包括处理器1201，该处理器1201通过调用存储器中的程序，以执行以上方法实施例中的终端设备或DR执行的方法。这里的处理器可以是一种具有信号的处理能力的集成电路，例如CPU。用于终端设备或DR的装置可以通过配置成实施以上方法的一个或多个集成电路来实现。例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。或者，可以结合以上实现方式。
具体的，图10中的收发单元101和创建单元102的功能/实现过程可以通过图12所示的通信装置1200中的处理器1201调用存储器1202中存储的计算机可执行指令来实现。或者，图10中的收发单元101的功能/实现过程可以通过图12所示的通信装置1200中的处理器1201调用存储器1202中存储的计算机执行指令来实现，图10中的创建单元102的功能/实现过程可以通过图12中所示的通信装置1200中的接口1203来实现。
具体的，图11中的收发单元111和创建单元112的功能/实现过程可以通过图12所示的通信装置1200中的处理器1201调用存储器1202中存储的计算机可执行指令来实现。或者，图11中的收发单元111的功能/实现过程可以通过图12所示的通信装置1200中的处理器1201调用存储器1202中存储的计算机执行指令来实现，图11中的创建单元112的功能/实现过程可以通过图12中所示的通信装置1200中的接口1203来实现。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包括一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于随机存取存储器(random access memory，RAM)、闪存、只读存储器(read-only memory，ROM)、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
在一个或多个示例性的设计中，本申请所描述的上述功能可以在硬件、软件、固件或这三者的任意组合来实现。如果在软件中实现，这些功能可以存储与电脑可读的媒介上，或以一个或多个指令或代码形式传输于电脑可读的媒介上。电脑可读媒介包括电脑存储媒介和便于使得让电脑程序从一个地方转移到其它地方的通信媒介。存储媒介可以是任何通用或特殊电脑可以接入访问的可用媒体。例如，这样的电脑可读媒体可以包括但不限于RAM、ROM、EEPROM、CD-ROM或其它光盘存储、磁盘存储或其它磁性存储装置，或其它任何可以用于承载或存储以指令或数据结构和其它可被通用或特殊电脑、或通用或特殊处理器读取形式的程序代码的媒介。此外，任何连接都可以被适当地定义为电脑可读媒介，例如，如果软件是从一个网站站点、服务器或其它远程资源通过一个同轴电缆、光纤电脑、双绞线、数字用户线(DSL)或以例如红外、无线和微波等无线方式传输的也被包含在所定义的电脑可读媒介中。所述的碟片(disk)和磁盘(disc)包括压缩磁盘、镭射盘、光盘、数字通用光盘(digital versatile disc，DVD)、软盘和蓝光光盘，磁盘通常以磁性复制数据，而碟片通常以激光进行光学复制数据。上述的组合也可以包含在电脑可读媒介中。
应理解，本申请实施例中，“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
在本申请说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
本申请是参照根据本申请的方法、装置(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理装置的处理器以产生一个机器，使得通过计算机或其他可编程数据处理装置的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理装置以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理装置上，使得在计算机或其他可编程装置上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程装置上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (22)

  1. 一种通信系统，其特征在于，包括：边缘云MEC和数字映射体DR，所述MEC上部署有至少一个DR，所述DR对应一组终端设备，所述一组终端设备至少包括一个终端设备；
    所述DR用于为所述DR对应的所述一组终端设备提供服务；所述DR具有至少一种核心网功能；所述核心网功能包括移动性管理和/或统一数据管理和/或会话管理和/或策略管理和/或接入认证、授权。
  2. 根据权利要求1所述的通信系统，其特征在于，所述通信系统还包括：生命周期管理系统LCM；
    所述LCM，用于管理所述DR的操作信息，所述DR的操作信息包括所述DR的生命周期以及所述DR的地址；其中，所述生命周期用于表示所述DR创建的时间信息和删除的时间信息。
  3. 根据权利要求2所述的通信系统，其特征在于，所述LCM，具体用于：
    为新加入所述通信系统的第一终端设备创建DR；或者，
    当所述第一终端设备从第一MEC迁移到第二MEC时，在所述第二MEC上为所述第一终端设备重构对应的DR；或者，
    当所述第一终端设备从所述第一MEC迁移到所述第二MEC时，在所述第二MEC上为所述第一终端设备重构对应的DR，且删除所述第一MEC上所述第一终端设备对应的DR；
    其中，所述第一MEC和所述第二MEC为不同的MEC。
  4. 根据权利要求2所述的通信系统，其特征在于，所述LCM，具体用于：
    将所述DR中的满足预设条件的DR确定为DR群组；其中，所述预设条件为同属一个指定服务群体。
  5. 根据权利要求4所述的通信系统，其特征在于，所述LCM，还用于：
    当所述DR群组中的第一DR停止为所述指定服务群体服务时，将所述第一DR删除。
  6. 根据权利要求1至5任一项所述的通信系统，其特征在于，所述通信系统还包括：分布式映射系统DMS；所述DMS，用于存储以下对应关系中的一种或多种：
    所述DR的标识和所述DR的地址之间的对应关系；
    所述终端设备的标识和所述终端设备的地址之间的对应关系；
    所述终端设备的标识和所述DR的标识之间的对应关系；
    所述终端设备的地址和所述DR的地址之间的对应关系；
    所述DR的标识和所述终端设备的地址之间的对应关系；
    所述终端设备的标识和所述DR的地址之间的对应关系；
    所述终端设备携带的用户身份识别码和所述DR的标识之间的对应关系。
  7. 根据权利要求1至6任一项所述的通信系统，其特征在于，所述通信系统还包括：分布式数据管理系统DDPS；
    所述DDPS，用于存储所述终端设备以及所述终端设备对应的DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息。
  8. 根据权利要求1至7任一项所述的通信系统，其特征在于，所述DR的存储信息包 括：所述DR的标识和所述DR的地址之间的对应关系、所述终端设备的标识和所述终端设备的地址之间的对应关系、所述终端设备的标识和所述DR的标识之间的对应关系、所述终端设备的地址和所述DR的地址之间的对应关系、所述DR的标识和所述终端设备的地址之间的对应关系、所述终端设备的标识和所述DR的地址之间的对应关系。
  9. 一种服务器，其特征在于，所述服务器被部署于边缘云MEC；所述MEC上部署有至少一个数字映射体DR，所述DR对应一组终端设备，所述一组终端设备至少包括一个终端设备；
    所述DR用于为所述DR对应的所述一组终端设备提供服务；所述DR具有至少一种核心网功能；所述核心网功能包括移动性管理和/或统一数据管理和/或会话管理和/或策略管理和/或接入认证、授权。
  10. 根据权利要求9所述的服务器，其特征在于，所述服务器还包括：分布式映射系统DMS；
    所述DR的标识和所述DR的地址之间的对应关系；
    所述终端设备的标识和所述终端设备的地址之间的对应关系；
    所述终端设备的标识和所述DR的标识之间的对应关系；
    所述终端设备的地址和所述DR的地址之间的对应关系；
    所述DR的标识和所述终端设备的地址之间的对应关系；
    所述终端设备的标识和所述DR的地址之间的对应关系；
    所述终端设备携带的用户身份识别码和所述DR的标识之间的对应关系。
  11. 根据权利要求9或10所述的服务器，其特征在于，所述服务器还包括：分布式数据管理系统DDPS；
    所述DDPS，用于存储所述终端设备以及所述终端设备对应的DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息。
  12. 根据权利要求9至11任一项所述的服务器，其特征在于，所述DR的存储信息包括：所述DR的标识和所述DR的地址之间的对应关系、所述终端设备的标识和所述终端设备的地址之间的对应关系、所述终端设备的标识和所述DR的标识之间的对应关系、所述终端设备的地址和所述DR的地址之间的对应关系、所述DR的标识和所述终端设备的地址之间的对应关系、所述终端设备的标识和所述DR的地址之间的对应关系。
  13. 一种通信方法，其特征在于，所述方法应用于通信系统，所述通信系统包括边缘云MEC和数字映射体DR，所述MEC上部署有至少一个DR，所述DR对应一组终端设备，所述一组终端设备至少包括一个终端设备；所述DR用于为所述DR对应的所述一组终端设备提供服务；所述DR具有至少一种核心网功能；所述核心网功能包括移动性管理和/或统一数据管理和/或会话管理和/或策略管理和/或接入认证、授权；所述方法包括：
    在所述终端设备从第一MEC迁移到第二MEC的情况下，所述终端设备接收所述第二MEC的指示信息；所述指示信息用于指示所述终端设备与第二DR之间的关联关系；所述第二DR为所述第二MEC中与所述终端设备对应的DR；
    所述终端设备根据所述指示信息与所述第二DR建立连接。
  14. 根据权利要求13所述的方法，其特征在于，所述终端设备根据所述指示信息与所述第二DR建立连接，包括：
    所述终端设备根据所述指示信息，将所述终端设备的第一存储信息更新为第二存储信 息；所述第一存储信息包括所述终端设备的标识与第一DR的地址之间的对应的关系；所述第二存储信息包括所述终端设备的标识与第二DR的地址之间的对应关系；其中，所述第一DR为所述第一MEC中与所述终端设备对应的DR；
    所述终端设备根据所述第二存储信息与所述第二DR建立连接。
  15. 一种通信方法，其特征在于，所述方法应用于通信系统，所述通信系统包括边缘云MEC和数字映射体DR，所述MEC上部署有至少一个DR，所述DR对应一组终端设备，所述一组终端设备至少包括一个终端设备；所述DR用于为所述DR对应的所述一组终端设备提供服务；所述DR具有至少一种核心网功能；所述核心网功能包括移动性管理和/或统一数据管理和/或会话管理和/或策略管理和/或接入认证、授权；所述方法包括：
    第二DR接收第二MEC的指示信息；所述第二DR为所述第二MEC中与所述终端设备对应的DR；所述第二MEC为所述终端设备从第一MEC迁移后连接的MEC；所述指示信息用于指示所述终端设备与第二DR之间的关联关系；
    所述第二DR根据所述指示信息，与所述终端设备建立连接。
  16. 根据权利要求15所述的方法，其特征在于，所述第二DR根据所述指示信息，与所述终端设备建立连接，包括：
    所述第二DR根据所述指示信息，确定第二存储信息；所述第二存储信息包括所述终端设备的标识与第二DR的地址之间的对应关系；
    所述第二DR根据所述第二存储信息与所述终端设备建立连接。
  17. 根据权利要求15或16所述的方法，其特征在于，所述方法还包括：
    所述第二DR接收第一DR的上下文信息；所述上下文信息包括所述第一DR执行业务产生的操作数据、和/或用户签约信息、和/或用户个人身份信息；所述第一DR为所述第一MEC中与所述终端设备对应的DR；
    所述第二DR根据所述第一DR的上下文信息更新所述第二DR的上下文信息。
  18. 一种通信装置，其特征在于，所述装置应用于通信系统，所述通信系统包括边缘云MEC和数字映射体DR，所述MEC上部署有至少一个DR，所述DR对应一组终端设备，所述一组终端设备至少包括一个终端设备；所述DR用于为所述DR对应的所述一组终端设备提供服务；所述DR具有至少一种核心网功能；所述核心网功能包括移动性管理和/或统一数据管理和/或会话管理和/或策略管理和/或接入认证、授权；所述装置包括：
    收发单元，用于在所述终端设备从第一MEC迁移到第二MEC的情况下，接收所述第二MEC的指示信息；所述指示信息用于指示所述终端设备与第二DR之间的关联关系；所述第二DR为所述第二MEC中与所述终端设备对应的DR；
    创建单元，用于根据所述指示信息与所述第二DR建立连接。
  19. 一种通信装置，其特征在于，所述装置应用于通信系统，所述通信系统包括边缘云MEC和数字映射体DR，所述MEC上部署有至少一个DR，所述DR对应一组终端设备，所述一组终端设备至少包括一个终端设备；所述DR用于为所述DR对应的所述一组终端设备提供服务；所述DR具有至少一种核心网功能；所述核心网功能包括移动性管理和/或统一数据管理和/或会话管理和/或策略管理和/或接入认证、授权；所述装置包括：
    收发单元，用于接收第二MEC的指示信息；所述第二DR为所述第二MEC中与所述终端设备对应的DR；所述第二MEC为所述终端设备从第一MEC迁移后连接的MEC；所述指示信息用于指示所述终端设备与第二DR之间的关联关系；
    创建单元，用于根据所述指示信息，与所述终端设备建立连接。
  20. 一种通信装置，其特征在于，所述装置包括处理器和存储器；所述存储器用于存储计算机执行指令，当所述装置运行时，所述处理器执行该存储器存储的所述计算机执行指令，以使所述装置执行如权利要求13至14任意一项所述的方法或如权利要求15至17任意一项所述的方法。
  21. 一种计算机可读存储介质，其特征在于，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行如权利要求13至14任意一项所述的方法或如权利要求15至17任意一项所述的方法。
  22. 一种计算机程序产品，其特征在于，当计算机读取并执行所述计算机程序产品时，使得计算机执行如权利要求13至14任意一项所述的方法或如权利要求15至17任意一项所述的方法。
PCT/CN2021/075621 2020-05-14 2021-02-05 通信系统、服务器、通信方法和装置 WO2021227579A1 (zh)

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