An inter-base station interface connection method, device, system, apparatus and storage medium

Abstract

The application relates to the technical field of communication, in particular to an inter-base-station interface connection method, device, system, equipment and storage medium. The method comprises the following steps: a current base station sends an interface configuration request message to a target base station; the interface configuration request message carries first interface configuration information of the current base station; the target base station sends an interface configuration response message to the current base station in response to the interface configuration request message; the interface configuration response message carries second interface configuration information of the target base station; the current base station sends a first interface setting request to the target base station based on the second interface configuration information, and the target base station sends a second interface setting request to the current base station based on the first interface configuration information, so as to establish the interface connection between the current base station and the target base station. The inter-base-station interface connection method can establish the interface connection between the base stations in non-adjacent cells, thereby maintaining the communication between the UE and the base station and realizing the switching and recovery across cells.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method, apparatus, system, device and storage medium for inter-base station interface connection. Background Technology

[0002] In the NG Radio Access Network (NG-RAN) of 5G (5th Generation Mobile Communication Technology), the network interface that enables connections between base stations (gNBs) is called the XN interface. The XN interface supports the exchange of signaling information between two gNBs, as well as the forwarding of PDUs (Protocol Data Units) to various tunnel endpoints. gNBs exchange their respective base station global information, serving cell information, and neighbor cell information through the XN interface signaling, which is used to achieve load balancing, cell energy saving, energy-saving cell activation, and neighbor cell PCI (Physical Cell Identifier) ​​conflict and confusion detection.

[0003] However, for mobile operators, due to limitations in base station hardware resources, XN connections are generally only established between adjacent base stations. This means that communication between user equipment (UE) and base stations can only occur between adjacent cells, and inter-cell handover is not possible. Summary of the Invention

[0004] This application provides a method, apparatus, system, device, and storage medium for inter-base station interface connection, which enables the establishment of XN connections between base stations in non-adjacent cells.

[0005] In a first aspect, embodiments of this application disclose a method for connecting interfaces between base stations, the method comprising:

[0006] The current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network; the interface configuration request message carries the first interface configuration information of the current base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighboring cells in the same radio notification area;

[0007] In response to the interface configuration request message, the target base station sends an interface configuration response message to the current base station based on the mobility management module; the interface configuration response message carries the second interface configuration information of the target base station;

[0008] The current base station sends a first interface setting request to the target base station based on the second interface configuration information, and the target base station sends a second interface setting request to the current base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0009] In some optional implementations, the target base station is a base station that stores preset terminal device context information; before the current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network, the method further includes:

[0010] The current base station receives a connection restoration request sent by a preset terminal device; the connection restoration request carries the device identification information of the preset terminal device;

[0011] The current base station determines the target base station identifier based on the equipment identification information; the target base station identifier is used by the mobility management module to determine the target base station.

[0012] In some optional implementations, the current base station determines the target base station identifier of the target base station based on the device identifier information, including:

[0013] The current base station obtains the high-order identifier and mask of the base station identifier within the wireless notification area;

[0014] The current base station determines the target base station identifier based on the high-order identifier, device identification information, and mask.

[0015] In some optional implementations, the current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network, including:

[0016] The current base station identifies the base stations with which it has an interface connection, and the corresponding set of base station identifiers;

[0017] If no base station identifier matches the target base station identifier in the base station identifier set, the current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network.

[0018] In some optional implementations, the current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network, including:

[0019] The current base station sends a first configuration transmission message to the mobility management module in the core network; the first configuration transmission message contains the current base station identifier, the target base station identifier, and the first interface configuration information of the current base station;

[0020] The mobility management module determines the target base station based on the target base station identifier;

[0021] The mobility management module sends an interface configuration request message to the target base station; the interface configuration request message contains the current base station identifier and the first interface configuration information.

[0022] In some optional implementations, the target base station, in response to the interface configuration request message, sends an interface configuration response message to the current base station based on the mobility management module, including:

[0023] In response to the interface configuration request message, the target base station sends a second configuration transmission message to the mobility management module; the second configuration transmission message contains the target base station identifier, the current base station identifier, and the second interface configuration information.

[0024] The mobility management module determines the current base station based on the current base station identifier;

[0025] The mobility management module sends an interface configuration response message to the current base station; the interface configuration response message contains the target base station identifier and the second interface configuration information.

[0026] In some optional implementations, after the current base station sends a first interface setting request to the target base station based on the second interface configuration information, and the target base station sends a second interface setting request to the current base station based on the first interface configuration information to establish an interface connection between the current base station and the target base station, the method further includes:

[0027] The current base station obtains the context information of the preset terminal device based on the interface connection between the current base station and the target base station.

[0028] Secondly, embodiments of this application disclose a method for connecting interfaces between base stations, the method comprising:

[0029] Based on the mobility management module in the core network, an interface configuration request message is sent to the target base station. In response, the target base station sends an interface configuration response message to the current base station. The interface configuration request message carries the first interface configuration information of the current base station. The interface configuration response message carries the second interface configuration information of the target base station. Cells corresponding to the current base station and the target base station are considered non-neighbor cells if they are within the same radio notification area.

[0030] The system sends a first interface setting request to the target base station based on the second interface configuration information, and obtains the second interface setting request sent by the target base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0031] In some optional implementations, the target base station is a base station that stores preset terminal device context information. Based on the mobility management module in the core network, an interface configuration request message is sent to the target base station to cause the target base station to respond to the interface configuration request message. Before the mobility management module sends an interface configuration response message to the current base station, the method further includes:

[0032] Receives a connection restoration request sent by a preset terminal device. The connection restoration request carries the device identification information of the preset terminal device.

[0033] Based on the device identification information, the target base station identifier is determined. The target base station identifier is used by the mobility management module to determine the target base station.

[0034] In some optional implementations, the target base station identifier of the target base station is determined based on the device identifier information, including:

[0035] Obtain the high-order identifier and mask of the base station identifier within the wireless notification area.

[0036] The target base station identifier is determined based on the high-order identifier, device identification information, and mask.

[0037] In some optional implementations, based on the mobility management module in the core network, an interface configuration request message is sent to the target base station, so that the target base station responds to the interface configuration request message and sends an interface configuration response message to the current base station based on the mobility management module, including:

[0038] Identify the base stations that have interface connections with the current base station, and the corresponding set of base station identifiers.

[0039] If no base station identifier matches the target base station identifier in the base station identifier set, an interface configuration request message is sent to the target base station based on the mobility management module in the core network.

[0040] In some optional implementations, based on the mobility management module in the core network, an interface configuration request message is sent to the target base station, so that the target base station responds to the interface configuration request message and sends an interface configuration response message to the current base station based on the mobility management module, including:

[0041] A first configuration transmission message is sent to the mobility management module in the core network, enabling the mobility management module to determine the target base station based on the target base station identifier, and then send an interface configuration request message to the target base station. The first configuration transmission message contains the current base station identifier, the target base station identifier, and first interface configuration information. The interface configuration request message contains the current base station identifier and the first interface configuration information.

[0042] In some optional implementations, after sending a first interface setting request to the target base station based on the second interface configuration information and obtaining the second interface setting request sent by the target base station based on the first interface configuration information to establish an interface connection between the current base station and the target base station, the method further includes:

[0043] Based on the interface connection between the current base station and the target base station, obtain the context information of the preset terminal device.

[0044] Thirdly, embodiments of this application disclose a method for connecting interfaces between base stations, the method comprising:

[0045] Receives an interface configuration request message sent by the current base station based on the mobility management module in the core network; the interface configuration request message carries the first interface configuration information of the current base station;

[0046] In response to the interface configuration request message, the mobility management module sends an interface configuration response message to the current base station; the interface configuration response message carries the second interface configuration information of the target base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighbor cells if they are in the same radio notification area;

[0047] The system receives a first interface setting request sent by the current base station based on the second interface configuration information, and sends a second interface setting request to the current base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0048] In some optional implementations, in response to the interface configuration request message, an interface configuration response message is sent to the current base station based on the mobility management module; the interface configuration response message carries the second interface configuration information of the target base station; the cells corresponding to the current base station and the cells corresponding to the target base station are non-neighboring cells if they are in the same radio notification area, including:

[0049] In response to the interface configuration request message, a second configuration transmission message is sent to the mobility management module, enabling the mobility management module to determine the current base station based on the current base station identifier, and then send an interface configuration response message to the current base station. The second configuration transmission message contains the target base station identifier, the current base station identifier, and the second interface configuration information. The interface configuration response message contains the target base station identifier and the second interface configuration information.

[0050] In some optional implementations, after receiving a first interface setting request sent by the current base station based on the second interface configuration information, and sending a second interface setting request to the current base station based on the first interface configuration information to establish an interface connection between the current base station and the target base station, the method further includes:

[0051] Based on the interface connection between the current base station and the target base station, the context information of the preset terminal device is sent to the current base station.

[0052] Fourthly, embodiments of this application disclose an inter-base station interface connection device, the device comprising:

[0053] The interface configuration request message sending module is used to control the current base station to send an interface configuration request message to the target base station based on the mobility management module in the core network; the interface configuration request message carries the first interface configuration information of the current base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighboring cells in the same radio notification area;

[0054] The interface configuration response message sending module is used to control the target base station to respond to the interface configuration request message and send an interface configuration response message to the current base station based on the mobility management module; the interface configuration response message carries the second interface configuration information of the target base station;

[0055] The interface setting request sending module is used to control the current base station to send a first interface setting request to the target base station based on the second interface configuration information, and the target base station to send a second interface setting request to the current base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0056] In some optional implementations, the target base station is a base station that stores preset terminal device context information; the apparatus further includes:

[0057] The connection restoration request receiving module is used to control the current base station to receive connection restoration requests sent by a preset terminal device; the connection restoration request carries the device identification information of the preset terminal device;

[0058] The target base station identifier determination module is used to control the current base station to determine the target base station identifier of the target base station based on the equipment identifier information; the target base station identifier is used to enable the mobility management module to determine the target base station.

[0059] In some optional implementations, the target base station identifier determination module includes:

[0060] The information determination unit is used to control the current base station to obtain the high-order identifier and mask of the base station identifier within the wireless notification area;

[0061] The target base station identifier determination unit is used to control the current base station to determine the target base station identifier of the target base station based on the high-order identifier, device identifier information and mask.

[0062] In some optional implementations, the interface configuration request message sending module includes:

[0063] The base station identifier set determination unit is used to control the current base station to determine the base station identifier set corresponding to the base station that has an interface connection with the current base station.

[0064] The interface configuration request message sending unit is used to control the current base station to send an interface configuration request message to the target base station based on the mobility management module in the core network when there is no base station identifier matching the target base station identifier in the base station identifier set.

[0065] In some optional implementations, the interface configuration request message sending module further includes:

[0066] The first configuration transmission message sending unit is used to control the current base station to send a first configuration transmission message to the mobility management module in the core network; the first configuration transmission message includes the current base station identifier, the target base station identifier, and the first interface configuration information of the current base station;

[0067] The target base station determination unit is used to control the mobility management module to determine the target base station based on the target base station identifier;

[0068] The interface configuration request message sending unit is used to control the mobility management module to send an interface configuration request message to the target base station; the interface configuration request message contains the current base station identifier and the first interface configuration information.

[0069] In some optional implementations, the interface configuration response message sending module includes:

[0070] The second configuration transmission message sending unit is used to control the target base station to send a second configuration transmission message to the mobility management module in response to the interface configuration request message; the second configuration transmission message includes the target base station identifier, the current base station identifier, and the second interface configuration information.

[0071] The current base station determination unit is used to control the mobility management module to determine the current base station based on the current base station identifier;

[0072] The interface configuration response message sending unit is used to control the mobility management module to send an interface configuration response message to the current base station; the interface configuration response message contains the target base station identifier and the second interface configuration information.

[0073] In some alternative embodiments, the device further includes:

[0074] The context information acquisition module is used to control the current base station to acquire the context information of the preset terminal device based on the interface connection between the current base station and the target base station.

[0075] Fifthly, embodiments of this application disclose an inter-base station interface connection device, which includes:

[0076] The interface configuration request message sending module is used to send an interface configuration request message to the target base station based on the mobility management module in the core network. In response, the target base station sends an interface configuration response message to the current base station based on the mobility management module. The interface configuration request message carries the first interface configuration information of the current base station. The interface configuration response message carries the second interface configuration information of the target base station. Cells corresponding to the current base station and the target base station are considered non-neighbor cells if they are in the same radio notification area.

[0077] The connection establishment module is used to send a first interface setting request to the target base station based on the second interface configuration information, and to obtain the second interface setting request sent by the target base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0078] Sixthly, embodiments of this application disclose an inter-base station interface connection device, the device comprising:

[0079] The interface configuration request message receiving module is used to receive the interface configuration request message sent by the current base station based on the mobility management module in the core network; the interface configuration request message carries the first interface configuration information of the current base station;

[0080] The interface configuration response message sending module is used to respond to the interface configuration request message and send an interface configuration response message to the current base station based on the mobility management module; the interface configuration response message carries the second interface configuration information of the target base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighbor cells if they are in the same radio notification area;

[0081] The connection establishment module is used to receive the first interface setting request sent by the current base station based on the second interface configuration information, and send the second interface setting request to the current base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0082] Seventhly, embodiments of this application disclose an inter-base station interface connection system, the system including a current base station and a target base station;

[0083] The current base station is used to send an interface configuration request message to the target base station based on the mobility management module in the core network; the interface configuration request message carries the first interface configuration information of the current base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighboring cells in the same radio notification area; and sends a first interface setting request to the target base station based on the second interface configuration information to establish an interface connection between the current base station and the target base station.

[0084] The target base station responds to the interface configuration request message by sending an interface configuration response message to the current base station based on the mobility management module. The interface configuration response message carries the second interface configuration information of the target base station and sends a second interface setting request to the current base station based on the first interface configuration information to establish an interface connection between the current base station and the target base station.

[0085] Eighthly, this application discloses an electronic device, which includes a processor and a memory. The memory stores at least one instruction or at least one program, and the processor loads and executes the inter-base station interface connection method as described above.

[0086] Ninthly, embodiments of this application disclose a computer-readable storage medium storing at least one instruction or at least one program, wherein the at least one instruction or at least one program is loaded and executed by a processor to implement the inter-base station interface connection method as described above.

[0087] The technical solution provided in this application has the following technical effects:

[0088] This inter-base station interface connection method enables the establishment of interface connections between base stations in non-adjacent cells, thereby maintaining communication between the UE and the base station and enabling handover and recovery across cells. Attached Figure Description

[0089] To more clearly illustrate the technical solutions and advantages in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0090] Figure 1 This is a schematic diagram of the application environment for an inter-base station interface connection method provided in an embodiment of this application;

[0091] Figure 2 This is a flowchart illustrating a method for connecting interfaces between base stations according to an embodiment of this application;

[0092] Figure 3 This is a flowchart illustrating a method for connecting inter-base station interfaces with the current base station as the execution subject, provided in an embodiment of this application.

[0093] Figure 4 This is a flowchart illustrating a method for connecting inter-base station interfaces with a target base station as the execution subject, provided in an embodiment of this application.

[0094] Figure 5This is a schematic diagram of the structure of an inter-base station interface connection device provided in an embodiment of this application;

[0095] Figure 6 This is a schematic diagram of another inter-base station interface connection device provided in an embodiment of this application;

[0096] Figure 7 This is a schematic diagram of the structure of another inter-base station interface connection device provided in the embodiments of this application;

[0097] Figure 8 This is a schematic diagram of the structure of an inter-base station interface connection system provided in an embodiment of this application;

[0098] Figure 9 This is a hardware structure block diagram of a computer terminal for a base station inter-interface connection method provided in an embodiment of this application. Detailed Implementation

[0099] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0100] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of the embodiments of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0101] To make the objectives, technical solutions, and advantages disclosed in the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of this application and are not intended to limit the embodiments of this application.

[0102] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this embodiment, unless otherwise stated, "multiple" means two or more. To facilitate understanding of the above-described technical solutions and their resulting technical effects in the embodiments of this application, the embodiments of this application first explain the relevant technical terms:

[0103] Cellular cell: also known as a cellular cell, refers to the area covered by a base station or the fan-shaped antenna of a base station in a cellular mobile communication system, within which mobile stations can reliably communicate with the base station via a wireless channel.

[0104] gNodeB: 5G communication base station, abbreviated as gNB, is a node used to provide NR (New Radio) user plane and control plane protocol terminals to UE, and is connected to the 5G core network (5G Core, 5GC) via the NG interface.

[0105] NG-RAN: Next generation radio access network, also known as 5G radio access network.

[0106] Xn interface: The network interface between NG-RAN nodes, i.e., the connection interface between gNBs.

[0107] Radio Resource Control (RRC) refers to the management, control, and scheduling of radio resources through specific strategies and methods. While meeting quality of service requirements, it aims to make the most of limited wireless network resources, ensure coverage of planned areas, and maximize service capacity and resource utilization. On 5G NR, RRC supports three states: RRC_IDLE, RRC_INACTIVE, and RRC_CONNECTED.

[0108] Normally, in connected mode (RRC_CONNECTED), communication between the UE and the base station is continuous, so handovers occur between neighboring cells. However, in disconnected mode, there are cases where the UE can resume from a non-neighboring cell. For example, in the same Radio Notification Area (RNA), there may be three cells A, B, and C. Cells A and B are neighboring cells, and cells B and C are neighboring cells, but cells A and C are not neighboring cells.

[0109] When a UE enters an inactive state (RRC_INACTIVE) in cell A, passes through cell B, and does not perform any data services in cell B (regardless of whether it has performed a periodic Radio Notification Area Update (RNAU), the UE's context parameters remain in cell A. Finally, it enters cell C to perform data services and sends an RRC connection restoration request. This requires obtaining the UE's context, but since cell A and cell C are not neighboring cells, the UE's context parameters cannot be obtained from cell A. It must be treated as a new UE, thus hindering the rapid restoration of the RRC connection. Furthermore, the UE's context parameters in cell A are only deleted after the RNAU timer expires and no RNAU request is received from that UE, leading to wasted resources.

[0110] In view of this, embodiments of this application provide a method for inter-base station interface connection. This method establishes an interface connection between base stations in non-adjacent cells, thereby enabling the UE to quickly restore the RRC connection in non-adjacent cells, and at the same time, the resources of the last serving cell can be quickly released, saving resources.

[0111] Please see Figure 1 , Figure 1 This is a schematic diagram illustrating the application environment of an inter-base station interface connection method provided in an embodiment of this application, such as... Figure 1 As shown, the application environment includes a preset terminal device 101, a current base station 103, a target base station 105, and a core network 107.

[0112] In some optional implementations, the preset terminal device 101 can be used to access the core network 107 through an NG-RAN node. The preset terminal device 101 may include physical devices such as smartphones, desktop computers, tablets, laptops, digital assistants, smart wearable devices, smart speakers, vehicle terminals, and smart TVs, but is not limited to these, and may also include other smart terminals, multimedia devices, streaming media devices, etc.

[0113] In some optional implementations, the current base station 103 and the target base station 105 are two non-adjacent nodes in the same RNA. That is, the serving cell of the current base station 103 and the serving cell of the target base station 105 are non-neighboring cells. The target base station 105 is the last serving base station in which the preset terminal device 101 performed services within the current RNA, and the target base station 105 stores the context information of the preset terminal device 101. The current base station 103 is the base station that received the RRC recovery request sent by the preset terminal device 101.

[0114] In some optional implementations, the core network is the 5G mobile communication network core network 5GC. The 5GC includes the Access and Mobility Management Function (AMF). The AMF performs registration, connection, reachability, and mobility management. The AMF also provides session management message transmission channels for the UE and SMF, provides authentication and authorization functions for user access, and serves as the core network control plane access point for the terminal and radio.

[0115] In some optional implementations, when the preset terminal device 101 is in a Radio Resource Control (RRC) inactive state (RRC-INACTIVE), it can move within the notification area (RNA) configured by the radio access network without notifying the base station. The base station that most recently interacted with the preset terminal device 101 within the notification area stores the context information of the preset terminal device 101 and maintains its connection with the core network. When the preset terminal device 101 needs to resume the Radio Resource Control (RRC-CONNECTED) state, it can send an RRC resume request to the base station corresponding to its current cell. Specifically, the preset terminal device 101 sends an RRC resume request to the serving cell corresponding to the current base station 103. After receiving the request, the current base station 103 determines the base station identifier of the target base station 105 corresponding to the last serving cell based on the Inactive Radio Network Temporary Identifier (I-RNTI) carried in the request. Then, it searches for the XN connection corresponding to the base station identifier in the XN connection chain of the current base station. If the XN connection exists, it initiates a process to obtain the UE context from the target base station 105. If it does not exist, an XN connection needs to be established between the current base station 103 and the target base station 105 before initiating the process of obtaining the UE context from the target base station 105.

[0116] The following describes a specific embodiment of an inter-base station interface connection method according to this application. Figure 2 This is a flowchart illustrating a method for connecting inter-base station interfaces according to an embodiment of this application. This specification provides the operational steps of the inter-base station interface connection method as shown in the embodiment or flowchart, but based on conventional or non-inventive methods, more or fewer operational steps may be included. The order of steps listed in the embodiment is merely one possible execution order among many and does not represent the only possible execution order. In actual system or server product execution, the inter-base station interface connection method shown in the embodiment or drawings can be executed sequentially or in parallel (e.g., in a parallel processor or multi-threaded processing environment). Specifically, as shown... Figure 2 As shown, the method may include:

[0117] S201: The current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network.

[0118] In this embodiment, the cell corresponding to the current base station and the cell corresponding to the target base station are two non-adjacent cells within the same radio notification area, and there is no inter-base station interface connection between the current base station and the target base station. The current base station is the base station that receives the connection restoration request sent by the preset terminal device, and the target base station is the base station that stores the context information of the preset terminal device. In this embodiment, by establishing an interface connection between the current base station and the target base station, the current base station can obtain the context information of the preset terminal device from the target base station.

[0119] It should be noted that the inter-base station interface connection method provided in this application embodiment is applicable to establishing an interface connection between two base stations that do not have an interface connection relationship.

[0120] In this embodiment, when establishing an XN connection between the current base station and the target base station, the current base station can send an interface configuration request message to the target base station through the mobility management module in the core network. Specifically, the current base station sends a first configuration transmission message to the mobility management module in the core network. The first configuration transmission message includes the current base station identifier, the target base station identifier, and first interface configuration information. The mobility management module determines the target base station based on the target base station identifier. The mobility management module then sends an interface configuration request message to the target base station. The interface configuration request message includes the current base station identifier and the first interface configuration information. The first interface configuration information includes the XN configuration information of the current base station.

[0121] As an optional implementation, the first configuration transmission message is used to enable the mobility management module in the core network to send the first interface configuration information of the current base station to the target base station. The first interface configuration information is the peer base station's IP Sec (IP Security) transport layer address information (Xn TNL Configuration Info), which contains the IP Sec transport layer address of the current base station. Optionally, the mobility management module is the AMF, and the first configuration transmission message is an uplink RAN ​​configuration transmission message. The current base station sends the uplink RAN ​​configuration transmission message to the AMF. The uplink RAN ​​configuration transmission message carries the target base station identifier of the target base station, the current base station identifier of the current base station, and the first interface configuration information. The uplink RAN ​​configuration transmission message also configures the message type. As an example, the current base station identifier is 0x691003, and the target base station identifier is 0x691001. In the UPLINK RAN CONFIGURATION TRANSFER message, the TARGET RAN NODE ID is 0x691001, the SOURCE RAN NODE ID is 0x691003, and the SON Information type is request. Furthermore, the UPLINK RANCONFIGURATION TRANSFER message also encapsulates an Xn TNL Configuration Info message, which contains the current base station's XN configuration information, i.e., the IP Sec transport layer address of the current base station. After receiving the uplink RAN ​​configuration transmission message, the AMF in the core network obtains the above information and determines the target base station based on the target base station identifier. Then, the AMF encapsulates this information in a downlink RAN ​​configuration transmission message and sends it to the target base station.

[0122] In this embodiment, the current base station can obtain the target base station identifier of the target base station based on the connection request sent by the preset terminal device. The target base station is a base station that stores the context information of the preset terminal device. When the preset terminal device is in a Radio Resource Control (RRC) inactive state (RRC-INACTIVE), it can restore the RRC connection by sending a recovery request to the current base station corresponding to its current serving cell. Generally, since there is no inter-base station interface connection between the current base station and the target base station, the current base station cannot obtain the context information of the preset terminal device from the target base station. The current base station can only treat the preset terminal device as a new terminal, which is inefficient. However, in this embodiment, the context information of the preset terminal device is obtained by establishing an interface connection between the current base station and the target base station. Specifically, the current base station receives the connection recovery request sent by the preset terminal device. The connection recovery request carries the device identifier information of the preset terminal device. The current base station determines the target base station identifier of the target base station based on the device identifier information. The target base station identifier is used to enable the mobility management module to determine the target base station.

[0123] As an optional implementation, when a terminal device restores its communication connection with the base station, it needs to inform the base station of its device identification information. This device identification information is the Inactive Radio Network Temporary Identifier (I-RNTI). The 3GPP (3rd Generation Partnership Project) specifies two types of I-RNTIs: a full-length I-RNTI, a 40-bit binary string, and a short I-RNTI, a 24-bit binary string. Both I-RNTIs consist of two parts: a User Equipment Identifier (UEI) and a Base Station Identifier (BSI). The UEI distinguishes different UEs within the base station, while the BSI distinguishes different base stations. Therefore, the current base station can determine the target base station identifier of the target base station based on the I-RNTI carried in the connection restoration request. Specifically, base stations within the same radio notification area share the same high-order identifier. The mask in the I-RNTI can be obtained according to the I-RNTI encoding rules. The current base station obtains the high-order identifier and mask of the base station identifiers within the radio notification area, and then determines the target base station identifier of the target base station based on the high-order identifier, device identification information, and mask. As an example, in a certain wireless notification area, the base station identifier (GNB ID) of the base station located in cell A is 0x691001, and the base station identifier of the base station located in cell C is 0x691003. When the preset terminal device enters the RRC-INACTIVE state in cell A, cell A assigns the preset terminal device a full I-RNTI of 0x0000011001, and the base station in cell A stores the context information of the preset terminal device. The preset terminal device sends a connection resumption request (RRC resume request) in cell C, which is not adjacent to cell A. The connection resumption request carries the device identifier information of the preset terminal device, i.e., the I-RNTI is 0x0000011001. The base station in cell C can determine the high-order identifier of the base station in the current radio notification area as id_base 0x690000 based on its own gnb id. According to the I-RNTI encoding rules, it can obtain the mask in the I-RNTI as id_diff 0xffff. Then, it can determine that the base station identifier of the base station in cell A is 0x691001. The algorithm for calculating the base station identifier is: gnb_id = id_base + (I-RNTI) & id_diff.

[0124] In this embodiment, after determining the target base station identifier of the target base station, the current base station first determines whether an XN connection exists between the target base station and the current base station based on the target base station identifier. When no XN connection exists between the target base station and the current base station, the current base station can establish an XN connection by sending an interface configuration request message to the target base station through the mobility management module in the core network. Specifically, the current base station determines the set of base station identifiers corresponding to the base stations with which it has an interface connection. If no base station identifier matching the target base station identifier exists in the set of base station identifiers, the current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network.

[0125] S203: In response to the interface configuration request message, the target base station sends an interface configuration response message to the current base station based on the mobility management module.

[0126] In this embodiment, after receiving an interface configuration request message sent by the current base station based on the mobility management module in the core network, the target base station responds to the interface configuration request message by sending an interface configuration response message to the current base station through the mobility management module in the core network. The interface configuration response message carries the target base station's second interface configuration information, which includes the target base station's XN configuration information, thus enabling the current base station to obtain the target base station's XN configuration information. Specifically, in response to the interface configuration request message, the target base station sends a second configuration transmission message to the mobility management module. The second configuration transmission message includes the target base station identifier, the current base station identifier, and the second interface configuration information. The mobility management module determines the current base station based on the current base station identifier. The mobility management module then sends the interface configuration response message to the current base station. The interface configuration response message includes the target base station identifier and the second interface configuration information.

[0127] As an optional implementation, the second configuration transmission message is used to enable the mobility management module in the core network to send the second interface configuration information of the target base station to the current base station. The second interface configuration information is the IP Sec transport layer address information of the peer base station, which includes the IP Sec transport layer address of the target base station. The second configuration transmission message is an uplink RAN ​​configuration transmission message. The target base station sends the uplink RAN ​​configuration transmission message to the AMF. The uplink RAN ​​configuration transmission message carries the current base station identifier, the target base station identifier, and the second interface configuration information. The message type is also configured in the uplink RAN ​​configuration transmission message. As an example, the current base station identifier is 0x691003, and the target base station identifier is 0x691001. Upon receiving the downlink RAN ​​configuration transmission message from the AMF, the target base station responds by sending an UPLINK RAN CONFIGURATION TRANSFER message. This message carries the identifier of the final receiving base station (i.e., the current base station identifier) ​​and the identifier of the sending base station (i.e., the target base station identifier). Specifically, in the UPLINK RAN CONFIGURATION TRANSFER message, the TARGET RAN NODE ID is 0x691003, the SOURCE RAN NODE ID is 0x691001, and the SONInformation type is "reply". Furthermore, the UPLINK RAN CONFIGURATION TRANSFER message also encapsulates an Xn TNL Configuration Info message, which contains the target base station's XN configuration information, i.e., the IP Sec transport layer address of the target base station. After receiving the uplink RAN ​​configuration transmission message in the core network, the AMF, having obtained the above information, determines the current base station based on its current base station identifier. The AMF then encapsulates this information in a downlink RAN ​​configuration transmission message and sends it to the current base station.

[0128] S205: The current base station sends a first interface setting request to the target base station based on the second interface configuration information, and the target base station sends a second interface setting request to the current base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0129] In this embodiment, after the above interaction, the target base station obtains the first interface configuration information of the current base station, i.e., the transport layer address of the current base station, and simultaneously obtains the second interface configuration information of the target base station, i.e., the transport layer address of the target base station. Thus, an information transmission channel is established between the current base station and the target base station. Then, the current base station and the target base station interact through this information transmission channel, thereby completing the establishment of the XN connection. Specifically, the current base station sends a first interface setting request to the target base station based on the transport layer address of the target base station, and the target base station sends a second interface setting request to the current base station based on the transport layer address of the current base station. The first interface setting request carries the neighbor cell information of the current base station, and the second interface setting request carries the neighbor cell information of the target base station. Optionally, the neighbor cell information includes the Peripheral Component Interconnect (PCI) interface, frequency point, cell identifier, etc. The current base station and the target base station synchronize through the neighbor cell information; after successful synchronization, the XN connection can be established.

[0130] In this embodiment, after the current base station and the target base station establish an XN connection, the current base station obtains the context information of a preset terminal device based on the XN connection. Afterward, the target base station can delete the context parameter information of the preset terminal device. Furthermore, after the successful establishment of the XN connection between the current base station and the target base station, it is stored in their respective XN connection lists. When a preset terminal device with the same path needs to be restored, the XN connection establishment process is not required, which can improve the RRC connection restoration rate. However, the cell information carried during the establishment of the XN connection does not need to be added to the neighbor cell list to avoid affecting cell selection during the handover process.

[0131] The base station interface connection method described in this application allows for rapid restoration of the UE's RRC connection in a non-neighboring cell, while also quickly releasing resources from the previous serving cell, thus saving resources. Furthermore, this method for rapid UE restoration in non-neighboring cells expands the paging range. Even if the UE is paged in a non-neighboring cell of the previous serving cell, it can quickly restore the RRC connection, thereby improving paging efficiency.

[0132] Based on the above description, the following describes a specific embodiment of an inter-base station interface connection method according to this application, taking the current base station as the execution subject. Figure 3 This is a flowchart illustrating a method for connecting inter-base station interfaces with the current base station as the execution subject, as provided in an embodiment of this application. Figure 3 As shown, the method may include:

[0133] S301: Based on the mobility management module in the core network, an interface configuration request message is sent to the target base station, so that the target base station responds to the interface configuration request message and sends an interface configuration response message to the current base station based on the mobility management module; the interface configuration request message carries the first interface configuration information of the current base station; the interface configuration response message carries the second interface configuration information of the target base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighbor cells in the same radio notification area.

[0134] S303: Send a first interface setting request to the target base station based on the second interface configuration information, and obtain the second interface setting request sent by the target base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0135] In some optional implementations, the target base station is a base station that stores preset terminal device context information. Based on the mobility management module in the core network, an interface configuration request message is sent to the target base station to cause the target base station to respond to the interface configuration request message. Before the mobility management module sends an interface configuration response message to the current base station, the method further includes: receiving a connection restoration request sent by the preset terminal device. The connection restoration request carries device identification information of the preset terminal device. Based on the device identification information, the target base station identifier of the target base station is determined. The target base station identifier is used to enable the mobility management module to determine the target base station.

[0136] In some optional implementations, determining the target base station identifier of the target base station based on device identification information includes: obtaining the high-order identifier and mask of the base station identifier within the wireless notification area. The target base station identifier of the target base station is determined based on the high-order identifier, device identification information, and mask.

[0137] In some optional implementations, based on the mobility management module in the core network, an interface configuration request message is sent to the target base station, causing the target base station to respond to the interface configuration request message and send an interface configuration response message to the current base station, including: determining the base station with an interface connection to the current base station and the corresponding set of base station identifiers. If no base station identifier matching the target base station identifier is found in the set of base station identifiers, the interface configuration request message is sent to the target base station based on the mobility management module in the core network.

[0138] In some optional implementations, based on the mobility management module in the core network, an interface configuration request message is sent to the target base station, causing the target base station to respond to the interface configuration request message and send an interface configuration response message to the current base station based on the mobility management module. This includes: sending a first configuration transmission message to the mobility management module in the core network, causing the mobility management module to determine the target base station based on the target base station identifier, and causing the mobility management module to send an interface configuration request message to the target base station. The first configuration transmission message includes the current base station identifier of the current base station, the target base station identifier, and first interface configuration information. The interface configuration request message includes the current base station identifier and the first interface configuration information.

[0139] In some optional implementations, after sending a first interface setting request to the target base station based on the second interface configuration information and obtaining the second interface setting request sent by the target base station based on the first interface configuration information to establish an interface connection between the current base station and the target base station, the method further includes: obtaining context information of a preset terminal device based on the interface connection between the current base station and the target base station.

[0140] Based on the above description, the following describes a specific embodiment of an inter-base station interface connection method according to this application, taking the target base station as the execution subject. Figure 4 This is a flowchart illustrating a method for connecting inter-base station interfaces with a target base station as the execution entity, as provided in an embodiment of this application. Figure 4 As shown, the method may include:

[0141] S401: Receive the interface configuration request message sent by the current base station based on the mobility management module in the core network; the interface configuration request message carries the first interface configuration information of the current base station.

[0142] S403: In response to the interface configuration request message, an interface configuration response message is sent to the current base station based on the mobility management module; the interface configuration response message carries the second interface configuration information of the target base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighbor cells in the same radio notification area.

[0143] S405: Receive the first interface setting request sent by the current base station based on the second interface configuration information, and send the second interface setting request to the current base station based on the first interface configuration information to establish an interface connection between the current base station and the target base station.

[0144] In some optional implementations, in response to the interface configuration request message, an interface configuration response message is sent to the current base station based on the mobility management module; the interface configuration response message carries second interface configuration information of the target base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighboring cells within the same radio notification area, including: in response to the interface configuration request message, sending a second configuration transmission message to the mobility management module, so that the mobility management module determines the current base station based on the current base station identifier, and so that the mobility management module sends the interface configuration response message to the current base station. The second configuration transmission message contains the target base station identifier, the current base station identifier, and the second interface configuration information. The interface configuration response message contains the target base station identifier and the second interface configuration information.

[0145] In some optional implementations, after receiving a first interface setting request sent by the current base station based on the second interface configuration information, and sending a second interface setting request to the current base station based on the first interface configuration information to establish an interface connection between the current base station and the target base station, the method further includes: sending context information of a preset terminal device to the current base station based on the interface connection between the current base station and the target base station.

[0146] This application also discloses an inter-base station interface connection device. Figure 5 This is a schematic diagram of the structure of an inter-base station interface connection device provided in an embodiment of this application, as shown below. Figure 5 As shown, the device includes:

[0147] The interface configuration request message sending module 501 is used to control the current base station to send an interface configuration request message to the target base station based on the mobility management module in the core network. The interface configuration request message carries the first interface configuration information of the current base station. The cell corresponding to the current base station and the cell corresponding to the target base station are non-neighboring cells in the same radio notification area.

[0148] The interface configuration response message sending module 503 is used to control the target base station to respond to the interface configuration request message and send an interface configuration response message to the current base station based on the mobility management module. The interface configuration response message carries the second interface configuration information of the target base station.

[0149] The interface setting request sending module 505 is used to control the current base station to send a first interface setting request to the target base station based on the second interface configuration information, and the target base station to send a second interface setting request to the current base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0150] In some optional implementations, the target base station is a base station that stores preset terminal device context information. The apparatus further includes:

[0151] The connection restoration request receiving module is used to control the current base station to receive connection restoration requests sent by preset terminal devices. The connection restoration request carries the device identification information of the preset terminal device.

[0152] The target base station identifier determination module controls the current base station to determine the target base station identifier based on the device identifier information. The target base station identifier is used by the mobility management module to determine the target base station.

[0153] In some optional implementations, the target base station identifier determination module includes:

[0154] The information determination unit is used to control the current base station to obtain the high-order identifier and mask of the base station identifier within the wireless notification area.

[0155] The target base station identifier determination unit is used to control the current base station to determine the target base station identifier of the target base station based on the high-order identifier, device identifier information and mask.

[0156] In some optional implementations, the interface configuration request message sending module includes:

[0157] The base station identifier set determination unit is used to control the current base station to determine the base station identifier set corresponding to the base station that has an interface connection with the current base station.

[0158] The interface configuration request message sending unit is used to control the current base station to send an interface configuration request message to the target base station based on the mobility management module in the core network when there is no base station identifier matching the target base station identifier in the base station identifier set.

[0159] In some optional implementations, the interface configuration request message sending module further includes:

[0160] The first configuration transmission message sending unit is used to control the current base station to send a first configuration transmission message to the mobility management module in the core network. The first configuration transmission message includes the current base station identifier, the target base station identifier, and the first interface configuration information of the current base station.

[0161] The target base station determination unit is used to control the mobility management module to determine the target base station based on the target base station identifier.

[0162] The interface configuration request message sending unit is used to control the mobility management module to send an interface configuration request message to the target base station. The interface configuration request message contains the current base station identifier and the first interface configuration information.

[0163] In some optional implementations, the interface configuration response message sending module includes:

[0164] The second configuration transmission message sending unit is used to control the target base station to send a second configuration transmission message to the mobility management module in response to the interface configuration request message. The second configuration transmission message includes the target base station identifier, the current base station identifier, and the second interface configuration information.

[0165] The current base station determination unit is used to control the mobility management module to determine the current base station based on the current base station identifier.

[0166] The interface configuration response message sending unit is used to control the mobility management module to send an interface configuration response message to the current base station. The interface configuration response message contains the target base station identifier and the second interface configuration information.

[0167] In some alternative embodiments, the device further includes:

[0168] The context information acquisition module is used to control the current base station to acquire the context information of the preset terminal device based on the interface connection between the current base station and the target base station.

[0169] The inter-base station interface connection device and inter-base station interface connection method embodiments described in this application are based on the same concept as those in this application. For specific implementation details of the inter-base station interface connection device, please refer to all the above-described embodiments of the inter-base station interface connection device.

[0170] This application also discloses another inter-base station interface connection device. Figure 6 This is a schematic diagram of another inter-base station interface connection device provided in an embodiment of this application, as shown below. Figure 6 As shown, the device includes:

[0171] The interface configuration request message sending module 601 is used to send an interface configuration request message to a target base station based on the mobility management module in the core network. This causes the target base station to respond to the interface configuration request message and send an interface configuration response message to the current base station based on the mobility management module. The interface configuration request message carries the first interface configuration information of the current base station. The interface configuration response message carries the second interface configuration information of the target base station. Cells corresponding to the current base station and the target base station are considered non-neighbor cells if they are in the same radio notification area.

[0172] The connection establishment module 603 is used to send a first interface setting request to the target base station based on the second interface configuration information, and to obtain the second interface setting request sent by the target base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0173] The inter-base station interface connection device in this application embodiment and the inter-base station interface connection method embodiment with the current base station as the execution subject are based on the same application concept.

[0174] This application also discloses yet another inter-base station interface connection device. Figure 7 This is a schematic diagram of another inter-base station interface connection device provided in the embodiments of this application, as shown below. Figure 7 As shown, the device includes:

[0175] The interface configuration request message receiving module 701 is used to receive the interface configuration request message sent by the current base station based on the mobility management module in the core network; the interface configuration request message carries the first interface configuration information of the current base station;

[0176] The interface configuration response message sending module 703 is used to respond to the interface configuration request message and send an interface configuration response message to the current base station based on the mobility management module; the interface configuration response message carries the second interface configuration information of the target base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighbor cells if they are in the same radio notification area;

[0177] The connection establishment module 705 is used to receive a first interface setting request sent by the current base station based on the second interface configuration information, and send a second interface setting request to the current base station based on the first interface configuration information, so as to establish an interface connection between the current base station and the target base station.

[0178] The inter-base station interface connection device in this application embodiment and the task scheduling method embodiment with the target base station as the execution subject are based on the same application concept.

[0179] This application also discloses an inter-base station interface connection system. Figure 8 This is a schematic diagram of the structure of an inter-base station interface connection system provided in an embodiment of this application, as shown below. Figure 8 As shown, the system includes the current base station and the target base station;

[0180] The current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network. The interface configuration request message carries the first interface configuration information of the current base station. The cell corresponding to the current base station and the cell corresponding to the target base station are non-neighboring cells in the same radio notification area. Based on the second interface configuration information, the current base station sends a first interface setting request to the target base station to establish an interface connection between the two base stations.

[0181] In response to the interface configuration request message, the target base station sends an interface configuration response message to the current base station based on the mobility management module. The interface configuration response message carries the target base station's second interface configuration information, and, based on the first interface configuration information, sends a second interface setting request to the current base station to establish an interface connection between the current base station and the target base station.

[0182] This application also discloses an electronic device, which includes a processor and a memory. The memory stores at least one instruction or at least one program. The processor loads and executes the inter-base station interface connection method as described above.

[0183] The base station interface connection method embodiments provided in this application can be executed in a mobile terminal, computer terminal, server, or similar computing device. Taking running on a computer terminal as an example, Figure 9 This is a hardware structure block diagram of a computer terminal for a base station inter-interface connection method provided in an embodiment of this application. For example... Figure 7 As shown, the computer terminal 700 can vary significantly due to different configurations or performance. It may include one or more central processing units (CPUs) 910 (CPUs 910 may include, but are not limited to, microprocessors (MCUs) or programmable gate arrays (FPGAs), etc.), a memory 930 for storing data, and one or more storage media 920 (e.g., one or more mass storage devices) for storing application programs 923 or data 922. The memory 930 and storage media 920 may be temporary or persistent storage. The program stored in the storage media 920 may include one or more modules, each module may include a series of instruction operations on the computer terminal. Furthermore, the CPU 910 may be configured to communicate with the storage media 920 and execute the series of instruction operations in the storage media 920 on the computer terminal 900. The computer terminal 900 may also include one or more power supplies 960, one or more wired or wireless network interfaces 950, one or more input / output interfaces 940, and / or one or more operating systems 921, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, etc.

[0184] The input / output interface 940 can be used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the computer terminal 900. In one example, the input / output interface 940 includes a network interface controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In one example, the input / output interface 940 can be a radio frequency (RF) module for wireless communication with the Internet.

[0185] Those skilled in the art will understand that Figure 9 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, the computer terminal 900 may also include... Figure 9 The more or fewer components shown, or having the same Figure 9 The different configurations shown.

[0186] This application also discloses a computer-readable storage medium storing at least one instruction or at least one program, wherein the at least one instruction or at least one program is loaded and executed by a processor to implement the inter-base station interface connection method as described above.

[0187] In this embodiment, the computer storage medium can be located in at least one of multiple network servers in a computer network. Optionally, the computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), solid-state drives (SSDs), or optical discs, etc. The random access memory may include resistive random access memory (ReRAM) and dynamic random access memory (DRAM).

[0188] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0189] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0190] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0191] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for connecting interfaces between base stations, characterized in that, The method includes: The current base station receives a connection restoration request sent by a preset terminal device; the connection restoration request carries the device identification information of the preset terminal device; The current base station determines the target base station identifier of the target base station based on the device identification information; the target base station identifier is used to enable the mobility management module to determine the target base station; the target base station is a base station that stores preset terminal device context information; The current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network; the interface configuration request message carries the first interface configuration information of the current base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighboring cells in the same radio notification area; In response to the interface configuration request message, the target base station sends an interface configuration response message to the current base station based on the mobility management module; the interface configuration response message carries the second interface configuration information of the target base station. The current base station sends a first interface setting request to the target base station based on the second interface configuration information, and the target base station sends a second interface setting request to the current base station based on the first interface configuration information. The first interface configuration information carries the neighbor cell information of the current base station, and the second interface setting request carries the neighbor cell information of the target base station. The current base station and the target base station synchronize through the neighbor cell information to establish an interface connection between the current base station and the target base station. When the interface connection is established, the neighbor cell information is not added to the neighbor cell list. The current base station obtains the context information of the preset terminal device based on the interface connection between the current base station and the target base station.

2. The method according to claim 1, characterized in that, The current base station determines the target base station identifier of the target base station based on the device identifier information, including: The current base station obtains the high-order identifier and mask of the base station identifier within the wireless notification area; The current base station determines the target base station identifier of the target base station based on the high-order identifier, the device identifier information, and the mask.

3. The method according to claim 1, characterized in that, The current base station, based on the mobility management module in the core network, sends an interface configuration request message to the target base station, including: The current base station determines the base stations that have an interface connection with the current base station, and the corresponding set of base station identifiers; If no base station identifier matches the target base station identifier in the set of base station identifiers, the current base station sends an interface configuration request message to the target base station based on the mobility management module in the core network.

4. The method according to claim 3, characterized in that, The current base station, based on the mobility management module in the core network, sends an interface configuration request message to the target base station, including: The current base station sends a first configuration transmission message to the mobility management module in the core network; the first configuration transmission message includes the current base station identifier of the current base station, the target base station identifier, and the first interface configuration information; The mobility management module determines the target base station based on the target base station identifier; The mobility management module sends the interface configuration request message to the target base station; the interface configuration request message includes the current base station identifier and the first interface configuration information.

5. The method according to claim 4, characterized in that, In response to the interface configuration request message, the target base station sends an interface configuration response message to the current base station based on the mobility management module, including: In response to the interface configuration request message, the target base station sends a second configuration transmission message to the mobility management module; the second configuration transmission message includes the target base station identifier, the current base station identifier, and the second interface configuration information. The mobility management module determines the current base station based on the current base station identifier; The mobility management module sends the interface configuration response message to the current base station; the interface configuration response message contains the target base station identifier and the second interface configuration information.

6. A base station inter-interface connection device, characterized in that, The device includes: A connection restoration request receiving module is used to control the current base station to receive a connection restoration request sent by a preset terminal device; the connection restoration request carries the device identification information of the preset terminal device; The target base station identifier determination module is used to control the current base station to determine the target base station identifier of the target base station based on the device identifier information; the target base station identifier is used to enable the mobility management module to determine the target base station; the target base station is a base station that stores preset terminal device context information; The interface configuration request message sending module is used to control the current base station to send an interface configuration request message to the target base station based on the mobility management module in the core network; the interface configuration request message carries the first interface configuration information of the current base station; the cell corresponding to the current base station and the cell corresponding to the target base station are non-neighboring cells in the same radio notification area; An interface configuration response message sending module is used to control the target base station to respond to the interface configuration request message and send an interface configuration response message to the current base station based on the mobility management module; the interface configuration response message carries the second interface configuration information of the target base station; An interface setting request sending module is used to control the current base station to send a first interface setting request to the target base station based on the second interface configuration information, and the target base station to send a second interface setting request to the current base station based on the first interface configuration information. The first interface configuration information carries the neighbor cell information of the current base station, and the second interface setting request carries the neighbor cell information of the target base station. The current base station and the target base station synchronize through the neighbor cell information to establish an interface connection between the current base station and the target base station. When the interface connection is established, the neighbor cell information is not added to the neighbor cell list.

7. A base station inter-interface connection system, characterized in that, The system includes the current base station and the target base station; The current base station is used to receive a connection restoration request sent by a preset terminal device; the connection restoration request carries the device identification information of the preset terminal device; The target base station identifier of the target base station is determined based on the device identification information; The target base station identifier is used to enable the mobility management module to identify the target base station; The target base station is a base station that stores preset terminal device context information; Based on the mobility management module in the core network, an interface configuration request message is sent to the target base station; The interface configuration request message carries the first interface configuration information of the current base station; The cell corresponding to the current base station and the cell corresponding to the target base station are non-neighboring cells in the same wireless notification area; And based on the second interface configuration information, a first interface setting request is sent to the target base station to establish an interface connection between the current base station and the target base station; The target base station is configured to respond to the interface configuration request message by sending an interface configuration response message to the current base station based on the mobility management module; the interface configuration response message carries second interface configuration information of the target base station; and sends a second interface setting request to the current base station based on the first interface configuration information, wherein the first interface configuration information carries neighbor cell information of the current base station, and the second interface setting request carries neighbor cell information of the target base station, and the current base station and the target base station synchronize through the neighbor cell information to establish an interface connection between the current base station and the target base station; When the interface connection is established, the neighbor cell information is not added to the neighbor cell list; The current base station obtains the context information of the preset terminal device based on the interface connection between the current base station and the target base station.

8. An electronic device, characterized in that, The device includes a processor and a memory, the memory storing at least one instruction or at least one program, the at least one instruction or the at least one program being loaded and executed by the processor as described in any one of claims 1-5.

9. A computer-readable storage medium, characterized in that, The storage medium stores at least one instruction or at least one program, which is loaded and executed by a processor to implement the inter-base station interface connection method as described in any one of claims 1-5.

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