WO2021146913A1 - Procédé et appareil de sauvegarde d'informations, support d'informations et dispositif informatique - Google Patents

Procédé et appareil de sauvegarde d'informations, support d'informations et dispositif informatique Download PDF

Info

Publication number
WO2021146913A1
WO2021146913A1 PCT/CN2020/073496 CN2020073496W WO2021146913A1 WO 2021146913 A1 WO2021146913 A1 WO 2021146913A1 CN 2020073496 W CN2020073496 W CN 2020073496W WO 2021146913 A1 WO2021146913 A1 WO 2021146913A1
Authority
WO
WIPO (PCT)
Prior art keywords
network node
user information
base station
core network
local
Prior art date
Application number
PCT/CN2020/073496
Other languages
English (en)
Chinese (zh)
Inventor
孙立新
孙玉飞
李娜
Original Assignee
北京佰才邦技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京佰才邦技术有限公司 filed Critical 北京佰才邦技术有限公司
Priority to PCT/CN2020/073496 priority Critical patent/WO2021146913A1/fr
Publication of WO2021146913A1 publication Critical patent/WO2021146913A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication

Definitions

  • the present invention relates to the field of mobile communication technology, in particular to a method, device, storage medium and computer equipment for backing up information.
  • the reference interface between each network element is specified.
  • the S1/NG interface between the base station and the core network is divided into the control plane interface S1-MME/NG-C(N1) with the MME/AMF And S1-U/NG-U (N3) of the user interface interface with SGW/UPF.
  • relevant information about the UE will be stored in the MME/AMF, including mobile information, partial subscription information and security information, which are used to manage the normal use of network resources by the UE.
  • the base station uses the S1 interface to connect to the remote core network through the gateway or directly to establish a link for communication.
  • the S1/NG backhaul link When the S1/NG backhaul link is disconnected, all devices covered by this base station will not be able to communicate normally. In similar scenarios in mines, the S1/NG backhaul link disconnection often occurs. In related technologies, the UE information transfer between MME/AMF occurs when the UE is handed over. However, in this situation in the mine, due to the harsh environment, the backhaul link interruption occurs from time to time and cannot be predicted. Therefore, when the link is interrupted, the UE information in the remote core network cannot be transmitted to the local core network. However, if the local core network has no relevant data, it cannot provide communication services for the UE. Therefore, there is an urgent need for a technical solution that can solve the interruption or recovery of the backhaul link and ensure that the UE communication is not affected.
  • the present invention provides an information backup method, device, storage medium, and computer equipment.
  • the second network node of the local core network can back up user information in the first network node of the remote core network in real time to deal with backhaul.
  • the link is interrupted, the communication of the connected UE is not affected.
  • an embodiment of the present invention provides an information backup method, including:
  • the local base station After receiving the communication message sent by the UE, the local base station sends the communication message to the first network node of the remote core network and the second network node of the local core network, and the communication message carries the identity of the UE;
  • the second network node determines that the first user information of the UE corresponding to the identity is not stored, it sends a request for obtaining the first user information of the UE to the first network node of the remote core network;
  • the first network node sends the first user information of the UE corresponding to the identity to the second network node;
  • the second network node stores the first user information of the UE.
  • it also includes:
  • the second network node determines that the first user information of the UE corresponding to the identity is stored, it sends a request for obtaining the second user information of the UE to the first network node at a set time interval;
  • the first network node sends the second user information of the UE to the second network node;
  • the stored user information is updated according to the updated second user information.
  • the method further includes:
  • the second network node of the local core network monitors whether the link between the local network and the remote core network is interrupted ;
  • the second network node of the local core network detects that the link between the local network and the remote core network is not interrupted, continue to execute the sending of the first network node of the remote core network to obtain the first user information of the UE The requested steps.
  • the method further includes:
  • the local base station monitors whether the link between the local network and the remote core network is interrupted;
  • the local base station detects that the link between the local network and the remote core network is not interrupted, continue to perform the step of sending a request to the first network node of the remote core network to obtain the first user information of the UE.
  • it also includes:
  • the second network node of the local core network detects that the link between the local network and the remote core network is interrupted, the second network node performs one or more of the following steps:
  • the second network node sends an indication message to the local base station, where the indication message includes a link interruption indication, an indication that the user information of the UE is not obtained, or an error indication.
  • it also includes:
  • the local base station If the local base station detects that the link between the local network and the remote core network is interrupted, the local base station performs one or more of the following steps:
  • the local base station discards the communication message
  • the local base station sends an indication message to the first network node, where the indication message includes a link interruption indication.
  • the local base station receives the communication message sent by the UE, the communication message is sent to the first network node of the remote core network and the second network node of the local core network, and the communication message carries the information of the UE.
  • the communication message carries the information of the UE.
  • it also includes:
  • the UE sends the communication message of the UE to the remote core network through the local base station;
  • the remote core network authenticates the UE, and stores the user information of the UE obtained after the authentication in the remote core network.
  • the communication message includes an attach message or a location update message.
  • the UE's mobile information is carried in the UE's communication message
  • the authentication of the UE by the remote core network includes:
  • the remote core network authenticates the identity
  • the method further includes:
  • the remote core network passes the authentication of the identity, sending the acquired UE's mobility information, subscription information, and security information to the first network node of the remote core network;
  • the first network node generates user information according to the mobility information, the subscription information, and the security information, and continues to execute that after the local base station receives the communication message sent by the UE, it sends the communication message to the remote core
  • the first network node of the network and the second network node of the local core network, the communication message carries the step of the identity of the UE.
  • the method further includes:
  • the local base station If the local base station detects that the backhaul link is interrupted, the local base station sends a trigger message to the UE, where the trigger message is used to instruct the UE to send a communication message to the local base station;
  • the UE sends a communication message to the local base station, where the communication message carries a service trigger instruction;
  • the local base station sends the service trigger instruction to the second network node to trigger the second network node to create a session for the UE to generate first session information and allocate the first GUTI to the UE;
  • the second network node sends the first session information and the first GUTI to a local base station
  • the local base station updates the stored user information according to the first session information and the first GUTI.
  • the method further includes:
  • the local base station If the local base station detects that the backhaul link is interrupted and resumed, the local base station sends a trigger message to the UE, where the trigger message is used to instruct the UE to send a service request message to the local base station;
  • the UE sends a communication message to the local base station, where the communication message carries a service trigger instruction;
  • the local base station sends the service trigger instruction to the first network node to trigger the first network node to create a session for the UE to generate second session information and allocate a second GUTI to the UE;
  • the first network node sends a request for obtaining user information of the UE to the second network node;
  • the second network node sends the user information to the first network node
  • the first network node sends the second session information and the second GUTI to the local base station;
  • the local base station updates the stored user information according to the second session information and the second GUTI.
  • an embodiment of the present invention provides an information backup method, which is applied to a first network node of a remote core network, and includes:
  • the receiving second network node determines that the first user information of the UE corresponding to the identity is not stored, sending a request for obtaining the first user information of the UE to the first network node of the remote core network;
  • it also includes:
  • the second network node determines that the first user information of the UE corresponding to the identity identifier is stored, receive the request for obtaining the second user information of the UE sent by the second network node at a set time interval;
  • the communication message is sent to the first network node of the remote core network and the second network node of the local core network, and the communication message carries the communication message of the UE.
  • the communication message carries the communication message of the UE.
  • it also includes:
  • the remote core network passes the authentication of the identity, receiving the UE's movement information, subscription information, and security information sent by the remote core network;
  • the communication message carries the step of the identity of the UE.
  • the second user information of the UE is sent to the second network node, so that if the second network node determines that the second user information has been updated, it will update the stored information according to the updated information.
  • the user information is updated, it also includes:
  • the local base station When the local base station detects that the backhaul link is interrupted and resumed, the local base station sends a trigger message to the UE.
  • the trigger message is used to instruct the UE to send a service trigger instruction to the local base station so that the UE sends a communication message to the local base station.
  • the communication message After the communication message carries the service triggering instruction, receiving the service triggering instruction sent by the local base station, and creating a session for the UE according to the service triggering instruction to generate second session information and allocating a second GUTI to the UE;
  • the second session information and the second GUTI are sent to the local base station, so that the local base station updates the stored user information according to the second session information and the second GUTI.
  • an embodiment of the present invention provides an information backup method, which is applied to a second network node of a local core network, and includes:
  • it also includes:
  • the stored user information is updated according to the update information.
  • the method further includes:
  • the method further includes:
  • the indication message includes a link interruption indication, an indication that the user information of the UE is not obtained, or an error indication.
  • the method further includes:
  • the local base station When the local base station detects that the backhaul link is interrupted, the local base station sends a trigger message to the UE.
  • the trigger message is used to instruct the UE to send a service trigger instruction to the local base station so that the UE sends a communication message to the local base station.
  • the service trigger instruction sent by the local base station is received, and the first session information is generated according to the creation of the session for the UE and the first GUTI is allocated to the UE.
  • the first session information and the first GUTI are sent to a local base station, so that the local base station updates the stored user information according to the first session information and the first GUTI.
  • an embodiment of the present invention provides an information backup device, which is applied to a first network node of a remote core network, and the device includes:
  • the first receiving module is configured to receive a communication message sent to the first network node of the remote core network and the second network node of the local core network after the local base station receives the communication message sent by the UE, and the communication message carries the communication message of the UE.
  • the first receiving module is also configured to receive a request for acquiring the first user information of the UE to the first network node of the remote core network when the second network node determines that the first user information of the UE corresponding to the identity identifier is not stored. ask;
  • the first sending module is configured to send the first user information of the UE corresponding to the identity to the second network node, so that the second network node stores the first user information of the UE.
  • the device further includes:
  • the first receiving module is further configured to: if the second network node determines that the first user information of the UE corresponding to the identity is stored, receive a request for obtaining the second user information of the UE sent by the second network node at a set time interval ;
  • the first sending module is also configured to send second user information of the UE to the second network node, so that if the second network node determines that the second user information has been updated, it will update the stored information according to the updated information. User information is updated.
  • the device further includes:
  • the first receiving module is further configured to receive UE mobility information, subscription information, and security information sent by the remote core network if the remote core network passes the authentication of the identity identifier;
  • the first generation module is configured to generate user information according to the movement information, the subscription information, and the security information, and continue to execute the receiving of the communication message sent by the UE by the local base station, and then send the communication message to the remote
  • the first network node of the end core network and the second network node of the local core network, the communication message carries the step of the identity of the UE.
  • the device further includes:
  • the first receiving module is also configured to send a trigger message to the UE when the local base station detects that the backhaul link is interrupted and resumed.
  • the trigger message is used to instruct the UE to send a service trigger instruction to the local base station so that the UE can send a service trigger instruction to the local base station.
  • the base station sends a communication message, and after the communication message carries a service trigger instruction, receives the service trigger instruction sent by the local base station;
  • the first generating module is further configured to generate second session information for the UE to create a session according to the service trigger instruction and to allocate a second GUTI to the UE;
  • the first sending module is further configured to send a request for obtaining user information of the UE to the second network node;
  • the first receiving module is further configured to receive the user information sent by the second network node;
  • the first sending module is further configured to send the second session information and the second GUTI to the local base station, so that the local base station updates the stored user information according to the second session information and the second GUTI.
  • an embodiment of the present invention provides an information backup device, which is applied to a second network node of a local core network, and the device includes:
  • the second receiving module is configured to receive a communication message sent to the first network node of the remote core network and the second network node of the local core network after the local base station receives the communication message sent by the UE, and the communication message carries the information of the UE.
  • the second sending module is configured to send a request for obtaining the first user information of the UE to the first network node of the remote core network if it is determined that the first user information of the UE corresponding to the identity identifier is not stored;
  • the second receiving module is further configured to receive first user information of the UE corresponding to the identity identifier sent by the first network node;
  • the second storage module is used to store the first user information of the UE.
  • the device further includes:
  • the second sending module is further configured to, if it is determined that the first user information of the UE corresponding to the identity identifier is stored, send a request for obtaining the second user information of the UE to the first network node at a set time interval;
  • the second receiving module is further configured to receive second user information of the UE sent by the first network node;
  • the second update module is configured to update the stored user information according to the update information if it is determined that the second user information has been updated.
  • the device further includes:
  • the second monitoring module is used to monitor whether the link between the local network and the remote core network is interrupted if there is a line connection between the second network node of the local core network and the first network node of the remote core network; if it is detected The link between the local network and the remote core network is not interrupted, and the step of continuing to perform the step of determining that the first user information of the UE corresponding to the identity identifier is not stored.
  • the device further includes:
  • the second discarding module is configured to discard the communication message if the second network node of the local core network detects that the link between the local network and the remote core network is interrupted;
  • the second sending module is further configured to send an indication message to the local base station when the second network node of the local core network detects that the link between the local network and the remote core network is interrupted, the indication message including the link An interruption indication, an indication that the user information of the UE is not obtained, or an error indication.
  • the device further includes:
  • the second receiving module is also used to send a trigger message to the UE when the local base station detects that the backhaul link is interrupted.
  • the trigger message is used to instruct the UE to send a service trigger instruction to the local base station so that the UE can send a service trigger instruction to the local base station.
  • the base station sends a communication message, and after the communication message carries the service trigger instruction, receives the service trigger instruction sent by the local base station;
  • the second generating module is configured to generate the first session information and allocate the first GUTI to the UE according to the creation of the session for the UE.
  • the second sending module is further configured to send the first session information and the first GUTI to a local base station, so that the local base station updates the stored user information according to the first session information and the first GUTI .
  • an embodiment of the present invention provides a storage medium that includes a stored program, wherein, when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned information backup method.
  • an embodiment of the present invention provides a computer device including a memory and a processor, the memory is used to store information including program instructions, the processor is used to control the execution of the program instructions, and the program instructions are processed.
  • the device loads and executes the steps of the above-mentioned information backup method.
  • the local base station after receiving the communication message sent by the UE, the local base station sends the communication message to the first network node of the remote core network and the second network node of the local core network, and the communication message Carries the identity of the UE.
  • the second network node determines that the first user information of the UE corresponding to the identity is not stored, it sends a request to the first network node of the remote core network to obtain the first user information of the UE, The first network node sends the first user information of the UE corresponding to the identity to the second network node, and the second network node stores the first user information of the UE, so that the second network node of the local core network can back up in real time
  • the user information in the first network node of the remote core network is used to cope with the interruption of the backhaul link, and the communication of the connected UE is not affected.
  • FIG. 1 is a flowchart of a backup information provided by an embodiment of the present invention
  • FIG. 2 is a flowchart of a backup information provided by another embodiment of the present invention.
  • FIG. 3 is a flowchart of a backup information provided by another embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a structure of backup information provided by an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a structure of backup information provided by another embodiment of the present invention.
  • Fig. 6 is a schematic diagram of a computer device provided by an embodiment of the present invention.
  • the following embodiments of the invention all take 4G base stations and core networks as examples, and are also applicable to 5G base stations and core networks, which are not limited in the present invention.
  • Fig. 1 is a flowchart of an information backup method provided by an embodiment of the present invention. As shown in Fig. 1, the method includes:
  • Step 101 The UE sends the communication message of the UE to the remote core network through the local base station.
  • the communication message includes an attach message or a location update message.
  • This step may specifically include: the UE sends the communication message of the UE to the first network node of the remote core network through the local base station.
  • the remote core network includes multiple network elements.
  • the multiple network elements of the remote core network may include MME, SGW, PGW, and HSS, where the first network node of the remote core network may include the remote end of the LTE network.
  • MME Mobility Management Entity
  • the UE can send the communication message of the UE to the MME of the remote core network through the local base station.
  • the first network node may also be a network node in other networks, for example, a network node in a 5G network, such as the access and mobility management function AMF of the core network, which is not limited in the present invention.
  • Step 102 The remote core network authenticates the UE, and stores the user information of the UE obtained after authentication.
  • step 102 may specifically include: the remote core network authenticates the identity.
  • the first network node in the remote core network recognizes the identity, and after the recognition is passed, the user information storage center in the remote core network authenticates the identity, where the authentication of the identity may specifically include user information storage
  • the center detects whether the identity is the same as the pre-stored user identity. If it is detected that the identity is the same as the pre-stored user identity, then the two parties will verify through the negotiated key verification method. After the two parties pass the verification, then Indicates that the identity authentication between the network and the UE has passed.
  • the user information storage center may include a home subscriber server (Home Subscriber Server, HSS).
  • HSS Home Subscriber Server
  • the remote core network After the remote core network authenticates the UE, it can obtain the user information of the UE and store the obtained user information of the UE, so that the stored user information can be sent to the second network node of the local core network in subsequent steps.
  • Step 103 If the remote core network passes the authentication of the identity identifier, the remote core network sends the acquired UE movement information, subscription information, and security information to the first network node of the remote core network.
  • the user information of the UE can be obtained.
  • the user information of the UE includes mobile information, subscription information, security information, etc., and the user information may also include other information.
  • the mobility information is the UE's mobility information carried in the communication message when the UE sends the UE's communication message to the remote core network through the local base station;
  • the security information is the UE's security generated during the authentication process of the UE by the remote core network information.
  • the mobile information includes the location information of the UE; the subscription information includes the services that the user can use, for example, the service includes the maximum rate, etc.; the security information includes the mutual authentication of the UE and the remote core network, the generation of related keys and the transmission of each segment, etc. .
  • the UE can use network resources normally. For example, when the UE reattaches to the network or performs a location update message, the first network node stores information about the UE. When the user information is valid, the UE can quickly complete network access and establish a session; otherwise, re-authentication and security context establishment are required.
  • Step 104 The first network node generates user information according to the movement information, the subscription information, and the security information.
  • the generated user information includes mobile information, subscription information, and security information.
  • Step 105 After receiving the communication message sent by the UE, the local base station sends the communication message to the first network node of the remote core network and the second network node of the local core network.
  • the communication message carries the identity of the UE.
  • Step 106 The second network node determines whether to store the first user information of the UE corresponding to the identity, if yes, execute step 107; if not, execute step 122.
  • Step 107 The second network node sends a request for acquiring second user information of the UE to the first network node at a set time interval.
  • the set time interval may be a request to obtain the second user information of the UE to the first network node every 5 s.
  • Step 108 The first network node sends the second user information of the UE to the second network node.
  • the first network node of the remote core network can send the second user information to the second network node of the local core network through the interface S10, so that the local network and the remote After the link between the core networks is interrupted and restored, the UE's second user information pre-stored in the second network node and the method in the subsequent steps are used to enable the UE to communicate normally.
  • Step 109 If the second network node determines that the data of the second user information has been updated, it updates the stored user information according to the update information.
  • the update information includes the second user information after the data is updated, where the second user information after the data update includes the completely updated second user information or the partially updated second user information.
  • the stored user information is made valid user information, so as to facilitate the link between the local network and the remote core network.
  • the UE's user information pre-stored in the second network node and the method in the subsequent steps are used to enable the UE to communicate normally.
  • the method further includes: the second network node creates the session and generates the session information according to the second user information.
  • the second network node creates a session based on user information to generate session information, and when the backhaul link is interrupted, the communication link can be quickly restored for the UE.
  • Step 110 If the local base station detects that the backhaul link is interrupted, the local base station sends a trigger message to the UE, and the trigger message is used to instruct the UE to send a service trigger instruction to the local base station.
  • Step 111 The UE sends a communication message to the local base station, and the communication message carries a service trigger instruction.
  • Step 112 The local base station sends a service trigger instruction to the second network node to trigger the second network node to create a session for the UE to generate first session information and allocate the first GUTI to the UE.
  • the Globally Unique Temporary UE Identity is the unique UE identity in the network, which can reduce the exposure of user private parameters such as IMSI and IMEI in network transmission.
  • GUTI is allocated by the remote core network or the local core network, and can be sent to the GUTI through communication messages such as attach messages.
  • Step 113 The second network node sends the first session information and the first GUTI to the local base station.
  • Step 114 The local base station updates the stored user information according to the first session information and the first GUTI.
  • the local base station updates the session information in the user information according to the first session information, and updates the GUTI in the user information according to the first GUTI.
  • the session information in the user information generated after step 109 is updated according to the first session information in step 114.
  • the user information in the local base station is the same as the user information of the second network node in the local core network, so that the backhaul between the local network and the remote core network After the link is interrupted, the UE can realize normal communication through the local core network.
  • Step 115 If the local base station detects that the backhaul link is interrupted and resumed, the local base station sends a trigger message to the UE.
  • the trigger message is used to instruct the UE to send a service trigger instruction to the local base station.
  • Step 116 The UE sends a communication message to the local base station, and the communication message carries a service trigger instruction.
  • Step 117 The local base station sends a service trigger instruction to the first network node to trigger the first network node to create a session for the UE to generate second session information and allocate a second GUTI to the UE.
  • Step 118 The first network node sends a request for obtaining user information of the UE to the second network node.
  • the request for obtaining user information of the UE may include an identification request (Identification Request) message or a context request (Context Request) message.
  • the acquired user information of the UE may be the user information of a single UE or the user information of multiple UEs, which is not limited in the present invention.
  • Step 119 The second network node sends user information to the first network node.
  • Step 120 The first network node sends the second session information and the second GUTI to the local base station.
  • Step 121 The local base station updates the stored user information according to the second session information and the second GUTI.
  • the local base station updates the session information in the user information according to the second session information, and updates the GUTI in the user information according to the second GUTI.
  • the user information in the local base station is the same as the user information of the second network node in the local core network, so that the backhaul between the local network and the remote core network After the link interruption is restored, the UE can realize normal communication through the remote core network.
  • Step 122 If there is a line connection between the second network node of the local core network and the first network node of the remote core network, the second network node of the local core network monitors whether the link between the local network and the remote core network occurs Interrupt, if yes, go to step 123; if not, continue to step 124.
  • the local network includes a local base station and/or a local core network. If the local base station monitors that the link between the local network and the remote core network is not interrupted, the local base station forwards the message that the link between the local network and the remote core network has not been interrupted to the remote core network, so that the remote core network The first network node of sends the acquired user information of the UE to the second network node of the local core network.
  • Step 123 The second network node discards the communication message, and the process ends.
  • step 123 may further include: the second network node sends an indication message to the local base station.
  • the indication message includes a link interruption indication, an indication that the user information of the UE is not obtained, or an error indication.
  • step 123 may also include: the second network node does not process the communication message.
  • the second network node may also perform one or more steps in the above solution, or other steps besides this, which is not limited in the present invention.
  • step 122 may also be step 122', and the specific steps are performed by the communication mode between the second network node of the local core network and the first network node of the remote core network It is determined that if there is a line connection between the second network node of the local core network and the first network node of the remote core network, perform step 122; if the second network node of the local core network is connected to the first network node of the remote core network To communicate with each other through local base station forwarding, step 122' is executed, and step 122' specifically includes:
  • Step 122' if the second network node of the local core network and the first network node of the remote core network communicate through the local base station forwarding, the local base station monitors whether the link between the local network and the remote core network is interrupted, If yes, perform step 123'; if not, continue to perform step 124.
  • the local base station if the local base station monitors that the link between the local network and the remote core network is not interrupted, the local base station forwards the message that the link between the local network and the remote core network has not been interrupted to the remote core network, So that the first network node of the remote core network sends the acquired user information of the UE to the second network node of the local core network.
  • Step 123' the local base station discards the communication message, and the process ends.
  • step 123' may further include: the local base station sends an indication message to the first network node, and the indication message includes a link interruption indication.
  • step 123' may also include: the local base station does not process the communication message.
  • the local base station may also execute one or more steps in the above solution, or other steps besides this, which is not limited in the present invention.
  • Step 124 The second network node sends a request for acquiring first user information of the UE to the first network node of the remote core network.
  • Step 125 The first network node sends the first user information of the UE corresponding to the identity identifier to the second network node.
  • the first network node of the remote core network may send the acquired user information of the UE to the second network node of the local core network through the interface S10.
  • the user information of the UE is sent to the second network node of the local core network, so that the link between the local network and the remote core network is interrupted and restored
  • the UE can communicate normally through the user information of the UE pre-stored in the second network node and the method in the subsequent steps.
  • Step 126 The second network node stores the first user information of the UE.
  • the second network node stores user information, so that after the link between the local network and the remote core network is interrupted and restored, the user information of the UE pre-stored in the second network node and subsequent
  • the method in the step enables the UE to communicate normally.
  • the local base station after receiving the communication message sent by the UE, the local base station sends the communication message to the first network node of the remote core network and the second network node of the local core network.
  • the communication message carries the information of the UE. If the second network node determines that the first user information of the UE corresponding to the identity is not stored, it sends a request to obtain the first user information of the UE to the first network node of the remote core network, and the first network node sends the first user information of the UE to the first network node. 2.
  • the network node sends the first user information of the UE corresponding to the identity, and the second network node stores the first user information of the UE, so that the second network node of the local core network can back up the user information in the first network node of the remote core network in real time , In order to deal with the interruption of the backhaul link, the communication of the connected UE will not be affected.
  • Fig. 2 is a flowchart of an information backup method provided by an embodiment of the present invention. The method is applied to a first network node of a remote core network. As shown in Fig. 2, the method includes:
  • Step 201 After receiving the communication message sent by the UE by the local base station, the communication message sent to the first network node of the remote core network and the second network node of the local core network is received, and the communication message carries the identity of the UE.
  • Step 202 When receiving, if the second network node determines that the first user information of the UE corresponding to the identity identifier is not stored, it sends a request for obtaining the first user information of the UE to the first network node of the remote core network.
  • Step 203 Send the first user information of the UE corresponding to the identity to the second network node, so that the second network node stores the first user information of the UE.
  • Step 203a If the second network node determines that the first user information of the UE corresponding to the identity identifier is stored, it receives a request for acquiring the second user information of the UE sent by the second network node at a set time interval.
  • Step 203b Send the second user information of the UE to the second network node, so that if the second network node determines that the second user information has been updated, the stored user information is updated according to the update information.
  • step 203b the method further includes:
  • the local base station When the local base station detects that the backhaul link is interrupted and resumed, the local base station sends a trigger message to the UE.
  • the trigger message is used to instruct the UE to send a service trigger instruction to the local base station so that the UE sends a communication message to the local base station.
  • the communication message carries After the service trigger instruction, receive the service trigger instruction sent by the local base station, and create a session for the UE according to the service trigger instruction to generate second session information and allocate the second GUTI to the UE;
  • the second session information and the second GUTI are sent to the local base station, so that the local base station updates the stored user information according to the second session information and the second GUTI.
  • the method further includes:
  • the remote core network passes the identity authentication, receive the UE's mobile information, subscription information, and security information sent by the remote core network;
  • the local base station after receiving the communication message sent by the UE, the local base station sends the communication message to the first network node of the remote core network and the second network node of the local core network.
  • the communication message carries the information of the UE. If the second network node determines that the first user information of the UE corresponding to the identity is not stored, it sends a request to obtain the first user information of the UE to the first network node of the remote core network, and the first network node sends the first user information of the UE to the first network node. 2.
  • the network node sends the first user information of the UE corresponding to the identity, and the second network node stores the first user information of the UE, so that the second network node of the local core network can back up the user information in the first network node of the remote core network in real time , In order to deal with the interruption of the backhaul link, the communication of the connected UE is not affected.
  • Fig. 3 is a flow chart of an information backup method provided by an embodiment of the present invention. The method is applied to a second network node of a local core network. As shown in Fig. 3, the method includes:
  • Step 301 After receiving the communication message sent by the UE by the local base station, the communication message sent to the first network node of the remote core network and the second network node of the local core network is received, and the communication message carries the identity of the UE.
  • Step 302 If it is determined that the first user information of the UE corresponding to the identity identifier is not stored, a request for obtaining the first user information of the UE is sent to the first network node of the remote core network.
  • Step 303 Receive the first user information of the UE corresponding to the identity identifier sent by the first network node.
  • Step 304 Store the first user information of the UE.
  • Step 304a If it is determined that the first user information of the UE corresponding to the identity is stored, a request for obtaining the second user information of the UE is sent to the first network node at a set time interval.
  • Step 304b Receive the second user information of the UE sent by the first network node.
  • Step 304c If it is determined that the second user information has been updated, the stored user information is updated according to the update information.
  • step 304c the method further includes:
  • the local base station When the local base station detects that the backhaul link is interrupted, the local base station sends a trigger message to the UE.
  • the trigger message is used to instruct the UE to send a service trigger instruction to the local base station so that the UE sends a communication message to the local base station.
  • the communication message carries After the service trigger instruction, the service trigger instruction sent by the local base station is received, and the first session information is generated according to the session creation for the UE and the first GUTI is allocated to the UE.
  • the first session information and the first GUTI are sent to the local base station, so that the local base station updates the stored user information according to the first session information and the first GUTI.
  • the method further includes:
  • step 302 If it is detected that the link between the local network and the remote core network is not interrupted, continue to perform step 302 to send a request to obtain the first user information of the UE to the first network node of the remote core network.
  • the method further includes:
  • the indication message includes a link interruption indication, an indication that the user information of the UE is not obtained, or an error indication.
  • the local base station after receiving the communication message sent by the UE, the local base station sends the communication message to the first network node of the remote core network and the second network node of the local core network.
  • the communication message carries the information of the UE. If the second network node determines that the first user information of the UE corresponding to the identity is not stored, it sends a request to obtain the first user information of the UE to the first network node of the remote core network, and the first network node sends the first user information of the UE to the first network node. 2.
  • the network node sends the first user information of the UE corresponding to the identity, and the second network node stores the first user information of the UE, so that the second network node of the local core network can back up the user information in the first network node of the remote core network in real time , In order to deal with the interruption of the backhaul link, the communication of the connected UE is not affected.
  • FIG. 4 is a schematic structural diagram of an information backup device provided by an embodiment of the present invention.
  • the device is applied to a first network node of a remote core network.
  • the device includes: a first receiving module 11 and First sending module 12.
  • the first receiving module 11 is configured to receive the communication message sent to the first network node of the remote core network and the second network node of the local core network after the local base station receives the communication message sent by the UE, and the communication message carries the communication message of the UE.
  • the first receiving module 11 is further configured to receive, if the second network node determines that the first user information of the UE corresponding to the identity identifier is not stored, send to the first network node of the remote core network to obtain the first user information of the UE Request
  • the first sending module 12 is configured to send the first user information of the UE corresponding to the identity to the second network node, so that the second network node stores the first user information of the UE.
  • the device includes:
  • the first receiving module 11 is further configured to, if the second network node determines that the first user information of the UE corresponding to the identity identifier is stored, receive the second user information of the UE sent by the second network node at a set time interval. ask.
  • the first sending module 12 is also configured to send the second user information of the UE to the second network node, so that if the second network node determines that the second user information has been updated, it will store data according to the updated information.
  • the user information is updated.
  • the device includes: a first generating module 13
  • the first receiving module 11 is further configured to receive the movement information, subscription information, and security information of the UE sent by the remote core network if the remote core network passes the authentication of the identity identifier.
  • the first generating module 13 is configured to generate user information according to the movement information, the subscription information, and the security information.
  • the device includes:
  • the first receiving module 11 is also configured to send a trigger message to the UE when the local base station detects that the backhaul link is interrupted and resumed.
  • the trigger message is used to instruct the UE to send a service trigger instruction to the local base station so that the UE can
  • the local base station sends a communication message, and after the communication message carries a service trigger instruction, receives the service trigger instruction sent by the local base station;
  • the first generating module is further configured to generate second session information for the UE to create a session according to the service trigger instruction and to allocate the second GUTI to the UE.
  • the first sending module 12 is further configured to send a request for obtaining user information of the UE to the second network node.
  • the first receiving module 11 is also configured to receive the user information sent by the second network node.
  • the first sending module 12 is further configured to send the second session information and the second GUTI to the local base station, so that the local base station updates the stored user information according to the second session information and the second GUTI.
  • the local base station after receiving the communication message sent by the UE, the local base station sends the communication message to the first network node of the remote core network and the second network node of the local core network.
  • the communication message If the second network node determines that the first user information of the UE corresponding to the identity is not stored, it sends a request to the first network node of the remote core network to obtain the first user information of the UE, The first network node sends the first user information of the UE corresponding to the identity to the second network node, and the second network node stores the first user information of the UE, so that the second network node of the local core network can back up in real time
  • the user information in the first network node of the remote core network is used to cope with the interruption of the backhaul link, and the communication of the connected UE is not affected.
  • FIG. 5 is a schematic structural diagram of an information backup device provided by another embodiment of the present invention.
  • the device is applied to a second network node of a local core network.
  • the device includes: a second receiving module 21, The second sending module 22 and the second storage module 23.
  • the second receiving module 21 is configured to receive a communication message sent to the first network node of the remote core network and the second network node of the local core network after the local base station receives the communication message sent by the UE.
  • the communication message carries the communication message of the UE.
  • the second sending module 22 is configured to send a request for obtaining the first user information of the UE to the first network node of the remote core network if it is determined that the first user information of the UE corresponding to the identity is not stored;
  • the second receiving module 21 is further configured to receive the first user information of the UE corresponding to the identity sent by the first network node;
  • the second storage module 23 is configured to store the first user information of the UE.
  • the device includes: a second update module 24.
  • the second sending module 22 is further configured to, if it is determined that the first user information of the UE corresponding to the identity identifier is stored, send a request for obtaining the second user information of the UE to the first network node at a set time interval.
  • the second receiving module 21 is further configured to receive second user information of the UE sent by the first network node;
  • the second update module 24 is configured to update the stored user information according to the update information if it is determined that the second user information has been updated.
  • the device includes: a second monitoring module 25.
  • the second monitoring module 25 is used to monitor whether the link between the local network and the remote core network is interrupted if there is a line connection with the first network node of the remote core network; if the connection between the local network and the remote core network is detected The link is not interrupted, and the step of sending the request for obtaining the first user information of the UE to the first network node of the remote core network described by the second sending module 22 is continued.
  • the device includes: a second discarding module 26.
  • the second discarding module 26 is configured to discard the communication message if the second network node of the local core network detects that the link between the local network and the remote core network is interrupted.
  • the second sending module 22 is further configured to send an indication message to the local base station when the second network node of the local core network detects that the link between the local network and the remote core network is interrupted, the indication message including the link A path interruption indication, an indication that the user information of the UE is not obtained, or an error indication.
  • the device includes: a second generation module 27
  • the second receiving module 21 is further configured to send a trigger message to the UE when the local base station detects that the backhaul link is interrupted.
  • the trigger message is used to instruct the UE to send a service trigger instruction to the local base station so that the UE can send a service trigger instruction to the local base station.
  • the local base station sends a communication message, and after the communication message carries the service trigger instruction, receives the service trigger instruction sent by the local base station;
  • the second generating module 27 is configured to generate the first session information and allocate the first GUTI to the UE according to the creation of the session for the UE.
  • the second sending module 22 is further configured to send the first session information and the first GUTI to a local base station, so that the local base station performs a calculation on the stored user information according to the first session information and the first GUTI. renew.
  • the local base station after receiving the communication message sent by the UE, the local base station sends the communication message to the first network node of the remote core network and the second network node of the local core network, and the communication message Carries the identity of the UE.
  • the second network node determines that the first user information of the UE corresponding to the identity is not stored, it sends a request to the first network node of the remote core network to obtain the first user information of the UE, The first network node sends the first user information of the UE corresponding to the identity to the second network node, and the second network node stores the first user information of the UE, so that the second network node of the local core network can back up in real time
  • the user information in the first network node of the remote core network is used to cope with the interruption of the backhaul link, and the communication of the connected UE is not affected.
  • the embodiment of the present invention provides a storage medium, the storage medium includes a stored program, wherein the device where the storage medium is located is controlled to execute each step of the above-mentioned information backup method when the program is running.
  • the above-mentioned information backup method For a detailed description, please refer to the above-mentioned information backup method. ⁇ Example.
  • An embodiment of the present invention provides a computer device, including a memory and a processor, the memory is used to store information including program instructions, the processor is used to control the execution of the program instructions, and the program instructions are loaded and executed by the processor to implement the above-mentioned information backup method A step of.
  • a computer device including a memory and a processor
  • the memory is used to store information including program instructions
  • the processor is used to control the execution of the program instructions
  • the program instructions are loaded and executed by the processor to implement the above-mentioned information backup method A step of.
  • Fig. 6 is a schematic diagram of a computer device provided by an embodiment of the present invention.
  • the computer device 4 of this embodiment includes a processor 41, a memory 42, and a computer program 43 stored in the storage 42 and running on the processor 41.
  • the computer program 43 is executed by the processor 41, In order to avoid repetition, the method applied to information backup in the implementation embodiment will not be repeated here.
  • the computer program is executed by the processor 41, the function of each model/unit in the positioning device applied to the root cause alarm in the embodiment is realized. In order to avoid repetition, it will not be repeated here.
  • the computer device 4 includes, but is not limited to, a processor 41 and a memory 42.
  • FIG. 6 is only an example of the computer device 4, and does not constitute a limitation on the computer device 4. It may include more or less components than those shown in the figure, or a combination of certain components, or different components.
  • the computer device 4 may also include input and output devices, network access devices, buses, and so on.
  • the so-called processor 41 may be a central processing unit (Central Processing Unit, CPU), other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory 42 may be an internal storage unit of the computer device 4, such as a hard disk or a memory of the computer device 4.
  • the memory 42 may also be an external storage device of the computer device 4, such as a plug-in hard disk equipped on the computer device 4, a smart memory card (Smart Media Card, SMC), a Secure Digital (SD) card, and a flash memory card (Flash). Card) and so on.
  • the memory 42 may also include both an internal storage unit of the computer device 4 and an external storage device.
  • the memory 42 is used to store computer programs and other programs and data required by the computer device 4.
  • the memory 42 can also be used to temporarily store data that has been output or will be output.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium.
  • the above-mentioned software functional unit is stored in a storage medium and includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (Processor) execute the method described in each embodiment of the present invention. Part of the steps.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

Landscapes

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

Abstract

La présente invention concerne un procédé et un appareil de sauvegarde d'informations, un support d'informations et un dispositif informatique. Selon la solution technique, le procédé consiste à : après la réception d'un message de communication envoyé par un UE, envoyer, par une station de base locale, le message de communication à un premier nœud de réseau d'un réseau central à distance et à un second nœud de réseau d'un réseau central local, le message de communication transportant un identifiant d'identité de l'UE ; si le second nœud de réseau détermine que des premières informations d'utilisateur de l'UE correspondant à l'identifiant d'identité ne sont pas mémorisées, envoyer, au premier nœud de réseau du réseau central à distance, une demande d'acquisition des premières informations d'utilisateur de l'UE ; envoyer, par le premier nœud de réseau, les premières informations d'utilisateur de l'UE correspondant à l'identifiant d'identité au second nœud de réseau ; et mémoriser, par le second nœud de réseau, les premières informations d'utilisateur de l'UE. Par conséquent, le second nœud de réseau du réseau central local peut sauvegarder à distance en temps réel les informations d'utilisateur dans le premier nœud de réseau du réseau central à distance, de façon à empêcher d'affecter une communication d'un UE, qui a obtenu un accès lors d'une interruption de liaison terrestre.
PCT/CN2020/073496 2020-01-21 2020-01-21 Procédé et appareil de sauvegarde d'informations, support d'informations et dispositif informatique WO2021146913A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/073496 WO2021146913A1 (fr) 2020-01-21 2020-01-21 Procédé et appareil de sauvegarde d'informations, support d'informations et dispositif informatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/073496 WO2021146913A1 (fr) 2020-01-21 2020-01-21 Procédé et appareil de sauvegarde d'informations, support d'informations et dispositif informatique

Publications (1)

Publication Number Publication Date
WO2021146913A1 true WO2021146913A1 (fr) 2021-07-29

Family

ID=76992004

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/073496 WO2021146913A1 (fr) 2020-01-21 2020-01-21 Procédé et appareil de sauvegarde d'informations, support d'informations et dispositif informatique

Country Status (1)

Country Link
WO (1) WO2021146913A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000313A1 (fr) * 2007-06-22 2008-12-31 Telefonaktiebolaget Lm Ericsson (Publ) Fourniture d'adresse dans un système de télécommunication mobile
CN106303905A (zh) * 2015-05-26 2017-01-04 电信科学技术研究院 一种通信方法及设备
CN107454659A (zh) * 2017-10-11 2017-12-08 北京佰才邦技术有限公司 一种终端识别方法、系统、终端设备和基站
CN109587687A (zh) * 2018-12-04 2019-04-05 西安佰才邦网络技术有限公司 基站侧设备及其组网方法
CN109618325A (zh) * 2018-12-04 2019-04-12 西安佰才邦网络技术有限公司 局域网内签约数据信息分发方法、基站侧设备及企业网关

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000313A1 (fr) * 2007-06-22 2008-12-31 Telefonaktiebolaget Lm Ericsson (Publ) Fourniture d'adresse dans un système de télécommunication mobile
CN106303905A (zh) * 2015-05-26 2017-01-04 电信科学技术研究院 一种通信方法及设备
CN107454659A (zh) * 2017-10-11 2017-12-08 北京佰才邦技术有限公司 一种终端识别方法、系统、终端设备和基站
CN109587687A (zh) * 2018-12-04 2019-04-05 西安佰才邦网络技术有限公司 基站侧设备及其组网方法
CN109618325A (zh) * 2018-12-04 2019-04-12 西安佰才邦网络技术有限公司 局域网内签约数据信息分发方法、基站侧设备及企业网关

Similar Documents

Publication Publication Date Title
US20240223613A1 (en) Network security management method, and apparatus
US20190335332A1 (en) Authorization and Verification Method and Apparatus
WO2020024764A1 (fr) Procédé et appareil permettant de vérifier un identifiant d'équipement utilisateur dans un processus d'authentification
WO2018137713A1 (fr) Procédé d'authentification de tranche de réseau interne, entité mandataire d'authentification de tranche et entité de gestion de session
WO2021037175A1 (fr) Procédé de gestion de tranche de réseau et dispositif associé
WO2017147772A1 (fr) Procédé de transmission d'informations et appareil d'accès à un réseau central
US20220272607A1 (en) Network Access Method and Communication Apparatus
EP3965446B1 (fr) Procédé de communication et dispositif associé
WO2019134704A1 (fr) Procédé et appareil de mise à jour de clef
WO2020073802A1 (fr) Procédé et dispositif d'authentification
US20220345296A1 (en) Managing Security Keys in a Communication System
US20220303763A1 (en) Communication method, apparatus, and system
CN111278034B (zh) 一种信息备份方法、装置、存储介质和计算机设备
WO2018170707A1 (fr) Procédé et dispositif de gestion de connexion de plan de commande
WO2021026927A1 (fr) Procédé de communication et dispositifs associés
US20190320482A1 (en) Link re-establishment method, apparatus, and system
CN111278010B (zh) 一种备份信息方法、装置、存储介质和计算机设备
JP6476319B2 (ja) 移動無線通信ネットワークに移動端末の接続を確立するための方法、及び無線アクセスネットワーク構成要素
US20230388802A1 (en) Method for configuring evolved packet system non-access stratum security algorithm and related apparatus
WO2021146913A1 (fr) Procédé et appareil de sauvegarde d'informations, support d'informations et dispositif informatique
WO2023004683A1 (fr) Procédé de communication, appareil et dispositif
KR102385927B1 (ko) 오픈 네트워크의 접속 관리 시스템 및 이를 이용한 이동 단말의 오픈 네트워크 접속 관리 방법
WO2021146915A1 (fr) Procédé et appareil d'informations de sauvegarde, support de stockage et dispositif informatique
US20220400410A1 (en) Enhanced pfcp association procedure for session restoration
CN110830996B (zh) 一种密钥更新方法、网络设备及终端

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20915417

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20915417

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 02/02/2023)

122 Ep: pct application non-entry in european phase

Ref document number: 20915417

Country of ref document: EP

Kind code of ref document: A1