WO2021189930A1 - 节点选定方法、电子设备和存储介质 - Google Patents

节点选定方法、电子设备和存储介质 Download PDF

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Publication number
WO2021189930A1
WO2021189930A1 PCT/CN2020/133142 CN2020133142W WO2021189930A1 WO 2021189930 A1 WO2021189930 A1 WO 2021189930A1 CN 2020133142 W CN2020133142 W CN 2020133142W WO 2021189930 A1 WO2021189930 A1 WO 2021189930A1
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Prior art keywords
network access
access node
historical
network
connection
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PCT/CN2020/133142
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English (en)
French (fr)
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侯筠
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中兴通讯股份有限公司
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Priority to EP20926798.8A priority Critical patent/EP4125291A4/en
Publication of WO2021189930A1 publication Critical patent/WO2021189930A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H04W36/00698—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using different RATs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of communications, in particular to a node selection method, electronic equipment and storage medium.
  • the control plane (CP) of the 5G New Radio (NR) network is anchored in the 4G long-term evolution. (Long Term Evolution, LTE for short) network.
  • UE User Equipment
  • UE User Equipment
  • the UE After the 5G radio resources are released, the UE wants to access the 5G network again, and needs to repeat the above-mentioned NR measurement and reporting work to reselect the NR node. This process is cumbersome, redundant, and takes a long time.
  • the embodiments of the present application provide a node selection method, an electronic device, and an electronic device storage medium.
  • an embodiment of the present application provides a method for node selection, which is applied to a user equipment UE in a non-independent NSA network, and the method includes: sending a historical second network access node to a first network access node Information, so that the first network access node selects a second network access node according to the historical second network access node information; wherein, the historical second network access node information includes N historical second The node identifier of the network access node, where N is an integer greater than or equal to 1, and the historical second network access node is a second network access node that has successfully established a second network connection with the UE.
  • an embodiment of the present application provides a method for node selection, which is applied to a first network access node in a non-independent NSA network, and the method includes: acquiring historical second network access node information, where: The historical second network access node information includes the node identifiers of N historical second network access nodes, where N is an integer greater than or equal to 1, and the historical second network access node is the one that has successfully established the first network access node with the user equipment UE. 2. The second network access node connected to the network; the second network access node is selected according to the historical second network access node information, so that the UE currently to be connected to the second network is connected to the selected second network The node establishes a second network connection.
  • an embodiment of the present application provides an electronic device, including: a memory, configured to store a program; a processor, configured to execute the program stored in the memory, and when the processor executes the program stored in the memory
  • the processor is used to execute the node selection method as described above.
  • an embodiment of the present application provides a storage medium storing computer-executable instructions, and the computer-executable instructions are used to execute the aforementioned node selection method.
  • FIG. 1 is a flowchart of a method for selecting a node according to an embodiment of the present application
  • FIG. 2 is a flowchart of sending historical second network access node information to a first network access node according to an embodiment of the present application
  • FIG. 3 is a flowchart of another node selection method provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of another node selection method provided by an embodiment of the present application.
  • FIG. 5 is a flowchart of obtaining historical second network access node information according to an embodiment of the present application
  • FIG. 6 is a flowchart of selecting a second network access node according to historical second network access node information provided by an embodiment of the present application
  • Fig. 7 is a structural diagram of an electronic device provided by an embodiment of the present application.
  • multiple means two or more, greater than, less than, exceeding, etc. are understood to not include the number, and above, below, and within are understood to include the number. If there are descriptions of "first”, “second”, etc., which are only used to distinguish technical features, they cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the indicated The precedence of technical characteristics.
  • the core network is an Evolved Packet Core (EPC) or a new generation core (NGC)/5G core network (5G core, Referred to as 5GC), an evolved base station (evolved nodeB, referred to as eNB) that provides LTE access standard services as the master node can establish a control plane and user plane connection for the UE with the core network; provide NR access standard in 5G Next generation NodeB (gNB for short), as an auxiliary node, can only establish a user plane connection for user equipment with the core network.
  • gNB Next generation NodeB
  • the UE establishes a 4G network connection with the LTE node
  • the LTE node configures the UE to measure NR signals
  • the UE measures the NR signal according to the configuration and sends a measurement report to the LTE node;
  • the LTE node selects an NR node according to the measurement report, and sends a request for providing access resources to the corresponding NR node;
  • the NR node replies to the access resource configuration to the LTE node;
  • the LTE node sends the access resource configuration to the UE;
  • the UE uses the access resource configuration to establish a 5G network connection with the NR node.
  • the UE After the 5G radio resources are released, the UE wants to access the 5G network again, and needs to repeat the above-mentioned NR measurement and reporting work to reselect the NR node. This process is cumbersome, redundant, and takes a long time.
  • the embodiments of the application provide a method for selecting a node, an electronic device, and a storage medium, which can reduce the time it takes for a UE to access a 5G network.
  • Fig. 1 shows a flowchart of a node selection method provided by an embodiment of the present application. The method is applied to the user equipment UE under the non-independent NSA networking. As shown in Fig. 1, the method includes the following steps:
  • S110 Send historical second network access node information to the first network access node, so that the first network access node selects the second network access node according to the historical second network access node information.
  • the historical second network access node information includes the node identifiers of N historical second network access nodes, where N is an integer greater than or equal to 1, and the historical second network access node is the one that has successfully established a second network connection with the UE.
  • the second network access node includes the node identifiers of N historical second network access nodes, where N is an integer greater than or equal to 1, and the historical second network access node is the one that has successfully established a second network connection with the UE.
  • the second network access node includes the node identifiers of N historical second network access nodes, where N is an integer greater than or equal to 1, and the historical second network access node is the one that has successfully established a second network connection with the UE.
  • the second network access node includes the node identifiers of N historical second network access nodes, where N is an integer greater than or equal to 1, and the historical second network access node is the one that has successfully established a second network connection with the UE.
  • the second network access node
  • the first network access node and the second network access node in the embodiment of the present application are nodes of two different standards.
  • the first network access node may be a base station whose access standard is the LTE standard;
  • the second network access node may be a base station whose access standard is the NR standard.
  • sending historical second network access node information to the first network access node may include the following steps:
  • S111 Establish a first network connection with the first network access node
  • S113 Send historical second network access node information to the first network access node through the first network connection.
  • the UE first establishes a first network connection with the first network access node, and under normal circumstances, resides in a cell covered by the first network access node, and maintains the first network connection with the first network access node.
  • the UE wants to access the second network, it obtains the historical second network access node information that matches the first network access node to which it is connected, and sends the historical second network access node information to the first network access node.
  • Access node so that the first network access node selects the second network access node from multiple historical second network access nodes within its own coverage area, and the selected second network access node provides the UE for the UE The second network resource.
  • the historical second network access node information may be stored in the UE.
  • a historical second network access node list may be constructed in the UE, and the node identifier of the historical second network access node can be recorded through the historical second network access node list.
  • the historical second network access node information may also be stored in a cloud server or other storage, which is not too limited in this application.
  • the historical second network access node information may further include: the number of historical connection successes corresponding to the node identifier.
  • the number of historical connection successes represents the number of times the historical second network access node has successfully established a second network connection with the UE.
  • the number of historical connection successes may be recorded corresponding to the node identifier of each historical second network access node.
  • the first network access node selects the second network access node according to the historical second network access node information, which may include: according to history The number of connection successes determines the connection priority of the historical second network access node; according to the connection priority, the second network access node is selected from the N historical second network access nodes.
  • the historical second network access node information contains three nodes NR1, NR2, and NR3, and the corresponding historical connection success times are 3, 1, and 2, then the above three nodes are sorted according to the connection priority from high to low
  • the sequence is: NR1, NR3, NR2; the first network access node selects the NR1 node with the highest connection priority according to the connection priority to provide the second network resource for the UE.
  • the aforementioned N historical second network access nodes may be N second network access nodes that have successfully established a second network connection with the UE within a preset time period.
  • N second network access nodes that have successfully established a second network connection with the UE within a preset time period.
  • the success rate of the UE connected to the second network to establish the second network connection can be set to one day from today, one week from today, etc.
  • the N second network access nodes connected to the network are included in the historical second network access node list.
  • it can also be set to an unlimited time range, that is, within an unlimited time range, the N second network access nodes that have successfully established a second network connection with the UE recently are included in the historical second network access node list.
  • the specific number of N can be set during implementation, for example, set N equal to 3.
  • the method of this embodiment further includes the following steps:
  • the first network access node selects the second network access node, it sends the access configuration of the selected second network access node to the UE, so that the UE and the selected second network access node Establish a second network connection. If the establishment of the second network connection fails, the UE feeds back the connection failure information to the first network access node, so that the first network access node reselects the second network access node according to the historical second network access node information.
  • the first network access node re-selects the second network access node according to the historical second network access node information, and may select the second network access node in the above-mentioned historical second network access node list.
  • the second network access node serves as a new node, and enables the UE to establish a second network connection with the newly selected second network access node.
  • Fig. 4 shows a flowchart of a node selection method provided by an embodiment of the present application. This method is applied to the first network access node in a non-independent NSA network. As shown in FIG. 4, the method includes the following steps:
  • S220 Select a second network access node according to the historical second network access node information, so that the UE currently to be connected to the second network establishes a second network connection with the selected second network access node.
  • the historical second network access node information includes the node identifiers of N historical second network access nodes, where N is an integer greater than or equal to 1, and the historical second network access node is that the second network has been successfully established with the user equipment UE.
  • the connected second network access node includes the node identifiers of N historical second network access nodes, where N is an integer greater than or equal to 1, and the historical second network access node is that the second network has been successfully established with the user equipment UE.
  • the connected second network access node includes the node identifiers of N historical second network access nodes, where N is an integer greater than or equal to 1, and the historical second network access node is that the second network has been successfully established with the user equipment UE.
  • the connected second network access node includes the node identifiers of N historical second network access nodes, where N is an integer greater than or equal to 1, and the historical second network access node is that the second network has been successfully established with the user equipment UE.
  • the connected second network access node
  • the historical second network access node information may be stored in the UE currently to be connected to the second network. Based on this, in step S210, obtaining historical second network access node information may include, but is not limited to, the following sub-steps:
  • S211 Establish a first network connection with a UE currently to be connected to the second network.
  • the first network access node receives historical second network access node information from a UE currently to be connected to the second network
  • the historical second network access node information includes N historical second network access node nodes Identifies
  • the historical second network access node here represents a second network access node that has successfully established a second network connection with a UE currently to be connected to the second network.
  • the historical second network access node information received by the first network access node from the UE currently to be connected to the second network may further include: the number of historical connection successes corresponding to the node identifier.
  • the number of historical connection successes represents the number of times that the historical second network access node has successfully established a second network connection with a UE currently to be connected to the second network.
  • the historical second network access node information may be stored in the first network access node. Based on this, in step S210, obtaining historical second network access node information includes: the first network access node obtains historical second network access node information locally.
  • the historical second network access node information acquired locally by the first network access node includes node identities of N historical second network access nodes.
  • the historical second network access node is a second network access node that has successfully established a second network connection with the UE.
  • the UE here may refer to a different UE and is not limited to the UE currently to be connected to the second network.
  • the historical second network access node information may further include: the number of historical connection successes corresponding to the node identifier.
  • the historical number of successful connections represents the number of times the historical second network access node has successfully established a second network connection with the UE.
  • the UE here can also refer to different UEs and is not limited to the UE currently to be connected to the second network.
  • the historical second network access node may be the second network access node that has successfully established a second network connection with the UE currently to be connected to the second network, that is, only the second network access node that has been connected to the current second network is selected.
  • the second network access node of the UE successfully establishing the second network connection is used as the historical second network access node for selection by the first network access node.
  • the aforementioned N historical second network access nodes may be N second network access nodes that have successfully established a second network connection with the UE or the UE currently to be connected to the second network within a preset time period.
  • the preset time period can be set to one day before today. , A week ago, etc.
  • the N second network access nodes that have recently successfully established a second network connection with the UE or the UE currently to be connected to the second network are taken as the historical first Second, the network access node, the specific number of N is set during specific implementation, for example, N is set equal to 3.
  • step S220 the second network access node is selected according to the historical second network access node information, which may include but is not limited to the following step:
  • S221 Determine the connection priority of the historical second network access node according to the number of historical connection successes.
  • a second network access node is selected from the N historical second network access nodes.
  • the second network access node information obtained by the first network access node includes three nodes NR1, NR2, and NR3, and the corresponding historical connection success times are 3, 1, and 2.
  • the order of the above three nodes from high to low is: NR1, NR3, NR2; the first network access node selects the NR1 node with the highest connection priority according to the connection priority to provide the UE with the second network resource.
  • the first network access node When the first network access node receives the connection failure information fed back by the UE currently to be connected to the second network, it re-selects the second network access node according to the historical second network access node information. For example, the NR3 node with the second connection priority is selected to provide the second network resource for the UE.
  • a historical second network access node list is stored in the UE, which is used to record historical second network access nodes that have successfully established a second network connection by itself.
  • Table 1 is a list of historical second network access nodes stored in the UE
  • the steps for the UE to access the second network include:
  • the UE establishes a first network connection with a first network access node (assumed to be LTE1), where the first network connection is a 4G network connection;
  • the node information includes three node IDs, NR1, NR2, and NR3, and the number of historical connection successes 3, 1, 2 corresponding to the node IDs of NR1, NR2, and NR3;
  • the LTE1 node selects the second network access node according to the historical second network access node information from the UE. Specifically, it can determine the connection priority of NR1, NR2, and NR3 according to the number of historical connection successes, such as the connection priority here.
  • the order is NR1, NR3, NR2, and then NR1 is selected as the second network access node according to the connection priority, and a request to provide access resources is sent to the NR1 node;
  • the NR1 node replies to the access resource configuration to the LTE1 node;
  • the LTE1 node sends the access resource configuration to the UE;
  • the UE uses the access resource configuration to establish a 5G network connection with the NR1 node.
  • the LTE node stores a list of historical second network access nodes, which is used to record the UE that has established a first network connection with itself, and the historical second network access node corresponding to the UE, here the historical second network access node It is the NR node that has recently successfully established a 5G network connection with the corresponding UE through this LTE node.
  • Table 2 is a list of historical second network access nodes stored in LTE nodes
  • the steps for UE1 to access the 5G network include:
  • S21 UE1 establishes a 4G network connection with the LTE node
  • the LTE node When receiving the request of UE1 to access the 5G network, the LTE node acquires historical second network access node information (ie NR1, NR3) that matches the UE1 node;
  • the LTE node selects the second network access node according to the acquired historical second network access node information, that is, selects one of the nodes from NR1 and NR3, and assumes that NR1 is selected as the second network access node.
  • the node sends a request to provide access resources;
  • the NR1 node replies to the access resource configuration to the LTE node;
  • the LTE node sends the access resource configuration to UE1;
  • UE1 uses the access resource configuration to establish a 5G network connection with the NR1 node.
  • a list of historical second network access nodes is stored in the LTE node, which is used to record historical second network access nodes and the corresponding historical connection success times.
  • the historical second network access node here refers to the recent connection with the UE through this LTE node. (Not limited to one UE) An NR node that successfully establishes a 5G network connection.
  • Table 3 is a list of historical second network access nodes stored in LTE nodes
  • Historical second network access node The number of successful historical connections NR1 3
  • the steps for the UE to access the 5G network include:
  • the UE establishes a 4G network connection with the LTE node
  • the second network access node is selected according to the acquired historical second network access node information, that is, one of the nodes is selected from NR1, NR2, and NR3.
  • the connection priority of the NR node can be determined according to the number of historical connection successes.
  • the connection priority here is NR1, NR3, NR2, and then NR1 is selected as the second network access node according to the connection priority, and a request to provide access resources is sent to the NR1 node;
  • the NR1 node replies to the access resource configuration to the LTE node;
  • the LTE node sends the access resource configuration to the UE;
  • the UE uses the access resource configuration to establish a 5G network connection with the NR1 node.
  • the node selection method provided by the embodiments of the present application has the following advantages:
  • the first network access node selects the second network access node according to the historical second network access node information, without waiting for the UE’s cell signal quality measurement and reporting, which effectively improves the first network access node.
  • the network access node selects the efficiency of the second network access node, thereby saving the time it takes for the UE to access the second network.
  • FIG. 7 shows an electronic device 300 provided by an embodiment of the present application. As shown in FIG. 7, the electronic device 300 includes but is not limited to:
  • the memory 320 is used to store programs
  • the processor 310 is configured to execute a program stored in the memory 320, and when the processor 310 executes a program stored in the memory 320, the processor 310 is configured to execute the aforementioned node selection method.
  • the processor 310 and the memory 320 may be connected by a bus or in other ways.
  • the memory 320 can be used to store non-transitory software programs and non-transitory computer-executable programs, such as the node selection method described in the embodiments of the present application.
  • the processor 310 implements the node selection method described above by running non-transitory software programs and instructions stored in the memory 320.
  • the memory 320 may include a storage program area and a storage data area.
  • the storage program area may store an operating system and an application program required by at least one function; the storage data area may store and execute the node selection method described above.
  • the memory 320 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices.
  • the memory 320 may optionally include memories remotely provided with respect to the processor 310, and these remote memories may be connected to the processor 310 via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • the non-transitory software programs and instructions required to implement the node selection method described above are stored in the memory 320, and when executed by one or more processors 310, the node selection method described above is executed, for example, as described in FIG. 1
  • the embodiment of the present application also provides a storage medium storing computer-executable instructions, and the computer-executable instructions are used to execute the aforementioned node selection method.
  • the storage medium stores computer-executable instructions
  • the computer-executable instructions are executed by one or more control processors 310, for example, executed by one processor 310 in the above-mentioned electronic device 300, so that the above-mentioned One or more processors 310 execute the node selection method described above, for example, execute step S110 of the method described in FIG. 1, steps S111 to S113 of the method described in FIG. 2, and steps S110 and S120 of the method described in FIG. , The method steps S210 and S220 described in FIG. 4, the method steps S211 to S212 described in FIG. 5, and the method steps S221 to S222 described in FIG.
  • computer storage medium includes volatile and non-volatile data implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data).
  • Information such as computer-readable instructions, data structures, program modules, or other data.
  • Computer storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or Any other medium used to store desired information and that can be accessed by a computer.
  • communication media generally include computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as carrier waves or other transmission mechanisms, and may include any information delivery media. .

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Abstract

本申请公开了节点选定方法、电子设备和存储介质，所述方法包括：所述第一网络接入节点根据所述历史第二网络接入节点信息选定第二网络接入节点；其中，所述历史第二网络接入节点信息包括N个历史第二网络接入节点的节点标识，N为大于等于1的整数，所述历史第二网络接入节点为曾与所述UE成功建立第二网络连接的第二网络接入节点。

Description

节点选定方法、电子设备和存储介质
相关申请的交叉引用
本申请基于申请号为202010207239.1、申请日为2020年3月23日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请涉及通信领域，特别是涉及一种节点选定方法、电子设备和存储介质。
背景技术
目前，在5G网络部署采用的非独立(None-Standalone，简称NSA)组网架构下，5G新空口(New Radio，简称NR)网络的控制面(Control Plane，简称CP)锚定于4G长期演进(Long Term Evolution，简称LTE)网络。当用户设备(User Equipment，简称UE)欲通过5G网络传输数据流量时，需首先与LTE节点建立4G网络连接，接着进行NR测量，向LTE节点报告测量的NR小区信号强度和质量等，再由LTE节点根据测量报告选定NR节点，进而为UE分配5G无线资源。如此，UE才能使用5G网络进行数据传输。
当5G无线资源释放后，UE欲再次接入5G网络，需重复上述的NR测量和报告工作，以重新选定NR节点。此过程较为繁琐、冗余，且花费的时间长。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
一方面，本申请实施例提供了一种节点选定方法、电子设备和电子设备存储介质。
另一方面，本申请实施例提供了一种节点选定方法，应用于非独立NSA组网下的用户设备UE，所述方法包括：向第一网络接入节点发送历史第二网络接入节点信息，以使所述第一网络接入节点根据所述历史第二网络接入节点信息 选定第二网络接入节点；其中，所述历史第二网络接入节点信息包括N个历史第二网络接入节点的节点标识，N为大于等于1的整数，所述历史第二网络接入节点为曾与所述UE成功建立第二网络连接的第二网络接入节点。
另一方面，本申请实施例提供了一种节点选定方法，应用于非独立NSA组网下的第一网络接入节点，所述方法包括：获取历史第二网络接入节点信息，其中，所述历史第二网络接入节点信息包括N个历史第二网络接入节点的节点标识，N为大于等于1的整数，所述历史第二网络接入节点为曾与用户设备UE成功建立第二网络连接的第二网络接入节点；根据所述历史第二网络接入节点信息选定第二网络接入节点，使当前待接入第二网络的UE与选定的第二网络接入节点建立第二网络连接。
另一方面，本申请实施例提供了一种电子设备，包括：存储器，用于存储程序；处理器，用于执行所述存储器存储的程序，当所述处理器执行所述存储器存储的程序时，所述处理器用于执行如上所述的节点选定方法。
再一方面，本申请实施例提供了一种存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述的节点选定方法。
本申请的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本申请而了解。本申请的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
附图用来提供对本申请技术方案的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本申请的技术方案，并不构成对本申请技术方案的限制。
图1是本申请实施例提供的一种节点选定方法的流程图；
图2是本申请实施例提供的向第一网络接入节点发送历史第二网络接入节点信息的流程图；
图3是本申请实施例提供的另一种节点选定方法的流程图；
图4是本申请实施例提供的另一种节点选定方法的流程图；
图5是本申请实施例提供的获取历史第二网络接入节点信息的流程图；
图6是本申请实施例提供的根据历史第二网络接入节点信息选定第二网络 接入节点的流程图；
图7是本申请实施例提供的一种电子设备的结构图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
应了解，在本申请实施例的描述中，多个(或多项)的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到“第一”、“第二”等只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
在5G网络部署早期采用的NSA组网架构下，核心网为演进分组核心网(Evolved Packet Core，简称EPC)，或者是新一代核心网(new generationcore，简称NGC)/5G核心网(5G core，简称5GC)，提供LTE接入制式服务的演进型基站(evolved nodeB，简称eNB)作为主节点，与核心网之间可以为UE建立控制面和用户面连接；提供NR接入制式的5G中的下一代基站(next generation NodeB，简称gNB)作为辅助节点，与核心网之间只能为用户设备建立用户面连接。这意味着，5G网络的控制面锚定于4G网络。基于此，在NSA组网下，UE接入5G网络的步骤大致如下：
S1、UE与LTE节点建立4G网络连接；
S2、LTE节点配置该UE测量NR信号；
S3、UE依据配置来测量NR信号并向LTE节点发送测量报告；
S4、LTE节点根据测量报告选定NR节点，并向对应的NR节点发送提供接入资源的请求；
S5、NR节点回复接入资源配置至LTE节点；
S6、LTE节点将接入资源配置发送给UE；
S7、UE使用接入资源配置，与NR节点建立5G网络连接。
当5G无线资源释放后，UE欲再次接入5G网络，需重复上述的NR测量和报告工作，以重新选定NR节点。此过程较为繁琐、冗余，且花费的时间长。
本申请实施例提供了本申请实施例提供了一种节点选定方法、电子设备和存储介质，能够减少UE接入5G网络花费的时间。
图1示出了本申请实施例提供的一种节点选定方法的流程图。该方法应用于非独立NSA组网下的用户设备UE，如图1所示，该方法包括如下步骤：
S110，向第一网络接入节点发送历史第二网络接入节点信息，以使第一网络接入节点根据历史第二网络接入节点信息选定第二网络接入节点。
其中，历史第二网络接入节点信息包括N个历史第二网络接入节点的节点标识，N为大于等于1的整数，历史第二网络接入节点为曾与UE成功建立第二网络连接的第二网络接入节点。
应理解，本申请实施例的第一网络接入节点、第二网络接入节点为两种不同制式的节点。具体的，第一网络接入节点可以是接入制式为LTE制式的基站；第二网络接入节点可以是接入制式为NR制式的基站。
示例性的，如图2所示，向第一网络接入节点发送历史第二网络接入节点信息，可以包括如下步骤：
S111，与第一网络接入节点建立第一网络连接；
S112，获取与第一网络接入节点匹配的历史第二网络接入节点信息；
S113，通过第一网络连接，将历史第二网络接入节点信息发送给第一网络接入节点。
具体的，UE首先与第一网络接入节点建立第一网络连接，且在正常情况下，驻留在第一网络接入节点覆盖的小区，与第一网络接入节点保持第一网络连接。当UE欲接入第二网络时，获取与自身所连接的第一网络接入节点匹配的历史第二网络接入节点信息，并将历史第二网络接入节点信息发送给该第一网络接 入节点，以使第一网络接入节点从自身覆盖范围内的多个历史第二网络接入节点中选定第二网络接入节点，进而由选定的第二网络接入节点为UE提供第二网络资源。
可选的，历史第二网络接入节点信息可以存储于UE中。具体实现时，可以在UE中构建历史第二网络接入节点列表，通过历史第二网络接入节点列表记录历史第二网络接入节点的节点标识。需说明的是，历史第二网络接入节点信息还可以存储于云端服务器或者其他的存储器中，本申请对此不作过多限定。
可选的，历史第二网络接入节点信息还可以包括：对应于节点标识的历史连接成功次数。这里，历史连接成功次数表征历史第二网络接入节点与本UE建立第二网络连接成功的次数。具体实现时，可以在上述历史第二网络接入节点信息列表中，对应于各个历史第二网络接入节点的节点标识，对历史连接成功次数进行记录。
当历史第二网络接入节点信息包括对应于节点标识的历史连接成功次数时，第一网络接入节点根据历史第二网络接入节点信息选定第二网络接入节点，可以包括：根据历史连接成功次数，确定历史第二网络接入节点的连接优先级；根据连接优先级，从N个历史第二网络接入节点中选定第二网络接入节点。例如，历史第二网络接入节点信息中包含NR1、NR2和NR3三个节点，对应的历史连接成功次数为3、1、2，则按照连接优先级从高至低对上述三个节点进行排序依次为：NR1、NR3、NR2；第一网络接入节点根据连接优先级，选定连接优先级最高的NR1节点为UE提供第二网络资源。
可选的，上述的N个历史第二网络接入节点可以为预设时间段内曾与本UE成功建立第二网络连接的N个第二网络接入节点。一般来说，当用户移动至某第二网络接入节点覆盖的小区时，会驻留在该小区一段时间，因此为了提高第一网络接入节点选定的第二网络接入节点与当前待接入第二网络的UE建立第二网络连接的成功率，可以将预设时间段设置为距今一天、距今一周等，仅把距今预设时间段内曾与本UE成功建立第二网络连接的N个第二网络接入节点列入历史第二网络接入节点列表中。当然也可以设置为不限时间范围，即不限时间范围内，把最近曾与本UE成功建立第二网络连接的N个第二网络接入节点列入历史第二网络接入节点清单，具体实现时可以对N的具体数目进行设定， 例如设置N等于3。
如图3所示，可选的，本实施例的方法还包括如下步骤：
S120，与选定的第二网络接入节点建立第二网络连接，当第二网络连接建立失败，反馈连接失败信息至第一网络接入节点，以使第一网络接入节点根据历史第二网络接入节点信息重新选定第二网络接入节点。
示例性的，第一网络接入节点选定第二网络接入节点后，将选定的第二网络接入节点的接入配置发送给UE，使UE与选定的第二网络接入节点建立第二网络连接。若第二网络连接建立失败，UE反馈连接失败信息至第一网络接入节点，以使第一网络接入节点根据历史第二网络接入节点信息重新选定第二网络接入节点。
示例性的，第一网络接入节点根据历史第二网络接入节点信息重新选定第二网络接入节点，可以在上述历史第二网络接入节点列表中选定连接优先级排名第二的第二网络接入节点作为新的节点，并使UE与新选定的第二网络接入节点建立第二网络连接。
图4示出了本申请实施例提供的一种节点选定方法的流程图。该方法应用于非独立NSA组网下的第一网络接入节点，如图4所示，该方法包括如下步骤：
S210，获取历史第二网络接入节点信息；
S220，根据历史第二网络接入节点信息选定第二网络接入节点，使当前待接入第二网络的UE与选定的第二网络接入节点建立第二网络连接。
其中，历史第二网络接入节点信息包括N个历史第二网络接入节点的节点标识，N为大于等于1的整数，历史第二网络接入节点为曾与用户设备UE成功建立第二网络连接的第二网络接入节点。
如图5所示，在一种可能的实现方式中，可以将历史第二网络接入节点信息存储于当前待接入第二网络的UE中。基于此，步骤S210中，获取历史第二网络接入节点信息，可以包括但不限于如下子步骤：
S211，与当前待接入第二网络的UE建立第一网络连接；
S212，通过第一网络连接，接收由当前待接入第二网络的UE发送的历史第二网络接入节点信息。
示例性的，第一网络接入节点从当前待接入第二网络的UE接收历史第二网络接入节点信息，历史第二网络接入节点信息包括N个历史第二网络接入节点的节点标识，这里的历史第二网络接入节点表征曾与当前待接入第二网络的UE成功建立第二网络连接的第二网络接入节点。
可选的，第一网络接入节点从当前待接入第二网络的UE接收到的历史第二网络接入节点信息还可以包括：对应于节点标识的历史连接成功次数。这里，历史连接成功次数表征历史第二网络接入节点与当前待接入第二网络的UE建立第二网络连接成功的次数。
在另一种可能的实现方式中，可以将历史第二网络接入节点信息存储于第一网络接入节点中。基于此，步骤S210中，获取历史第二网络接入节点信息包括：第一网络接入节点从本地获取历史第二网络接入节点信息。
示例性的，第一网络接入节点从本地获取的历史第二网络接入节点信息，历史第二网络接入节点信息包括N个历史第二网络接入节点的节点标识。
示例性，历史第二网络接入节点是曾与UE成功建立第二网络连接的第二网络接入节点，这里的UE可以指代不同的UE而不限于当前待接入第二网络的UE。此外，在本实施例中，历史第二网络接入节点信息还可以包括：对应于节点标识的历史连接成功次数。这里，历史连接成功次数表征历史第二网络接入节点与UE建立第二网络连接成功的次数，这里的UE同样可以指代不同的UE而不限于当前待接入第二网络的UE。
可选的，历史第二网络接入节点可以是曾与当前待接入第二网络的UE成功建立第二网络连接的第二网络接入节点，即仅取曾与当前待接入第二网络的UE成功建立第二网络连接的第二网络接入节点作为历史第二网络接入节点，以供第一网络接入节点选择。
可选的，上述的N个历史第二网络接入节点可以为预设时间段内曾与UE或者当前待接入第二网络的UE成功建立第二网络连接的N个第二网络接入节点。例如，为了提高第一网络接入节点选定的第二网络接入节点与当前待接入 第二网络的UE建立第二网络连接的成功率，可以将预设时间段内设置为距今一天、距今一周等。当然也可以设置为不限时间范围，即不限时间范围内，取最近曾与UE或者当前待接入第二网络的UE成功建立第二网络连接的N个第二网络接入节点作为历史第二网络接入节点，具体实现时对N的具体数目进行设定，例如设置N等于3。
如图6所示，当历史第二网络接入节点信息包括历史连接成功次数，步骤S220中，根据历史第二网络接入节点信息选定第二网络接入节点，可以包括但不限于如下子步骤：
S221，根据历史连接成功次数，确定历史第二网络接入节点的连接优先级；
S222，根据连接优先级，从N个历史第二网络接入节点中选定第二网络接入节点。
举例来说，第一网络接入节点获取到的第二网络接入节点信息中包含NR1、NR2和NR3三个节点，对应的历史连接成功次数为3、1、2，则按照连接优先级从高至低对上述三个节点进行排序依次为：NR1、NR3、NR2；第一网络接入节点根据连接优先级，选定连接优先级最高的NR1节点为UE提供第二网络资源。
当第一网络接入节点接收到当前待接入第二网络的UE反馈的连接失败信息，根据历史第二网络接入节点信息重新选定第二网络接入节点。例如，选择连接优先级第二的NR3节点为UE提供第二网络资源。
以下通过具体实例，进一步介绍本申请实施例提供的节点选定方法。
实例1：
UE中存储有历史第二网络接入节点列表，用于记录曾于自身成功建立第二网络连接的历史第二网络接入节点。
表1 为存储于UE中的历史第二网络接入节点列表
Figure PCTCN2020133142-appb-000001
Figure PCTCN2020133142-appb-000002
示例性的，UE实现接入第二网络(即5G网络)的步骤包括：
S11、UE与第一网络接入节点(假设为LTE1)建立第一网络连接，这里的第一网络连接为4G网络连接；
S12、当UE需要接入第二网络(即5G网络)时，获取与LTE1节点匹配的历史第二网络接入节点信息，并发送给LTE1节点，这里与LTE1节点匹配的历史第二网络接入节点信息包含NR1、NR2和NR3三个节点标识，以及与NR1、NR2、NR3的节点标识对应的历史连接成功次数3、1、2；
S13、LTE1节点根据来自UE的历史第二网络接入节点信息选定第二网络接入节点，具体可根据历史连接成功次数，确定NR1、NR2和NR3的连接优先级，如这里的连接优先级排序为NR1、NR3、NR2，接着根据连接优先级选定NR1为第二网络接入节点，并向NR1节点发送提供接入资源的请求；
S14、NR1节点回复接入资源配置至LTE1节点；
S15、LTE1节点将接入资源配置发送给UE；
S16、UE使用接入资源配置，与NR1节点建立5G网络连接。
实例2：
LTE节点中存储有历史第二网络接入节点列表，用于记录曾与自身建立第一网络连接的UE，以及对应于UE的历史第二网络接入节点，这里的历史第二网络接入节点为最近透过本LTE节点与对应的UE成功建立5G网络连接的NR节点。
表2 为存储于LTE节点中的历史第二网络接入节点列表
Figure PCTCN2020133142-appb-000003
示例性的，UE1实现接入5G网络的步骤包括：
S21、UE1与LTE节点建立4G网络连接；
S22、LTE节点接收到UE1的接入5G网络的请求时，获取与UE1节点匹配的历史第二网络接入节点信息(即NR1、NR3)；
S23、LTE节点根据获取的历史第二网络接入节点信息选定第二网络接入节点，即从NR1、NR3选定其中一个节点，假设选定NR1为第二网络接入节点，则向NR1节点发送提供接入资源的请求；
S24、NR1节点回复接入资源配置至LTE节点；
S25、LTE节点将接入资源配置发送给UE1；
S26、UE1使用接入资源配置，与NR1节点建立5G网络连接。
实例3：
LTE节点中存储有历史第二网络接入节点列表，用于记录历史第二网络接入节点以及对应的历史连接成功次数，这里的历史第二网络接入节点为最近透过本LTE节点与UE(不限于一个UE)成功建立5G网络连接的NR节点。
表3 为存储于LTE节点中的历史第二网络接入节点列表
历史第二网络接入节点 历史连接成功次数
NR1 3
NR2 1
NR3 2
示例性的，UE实现接入5G网络的步骤包括：
S31、UE与LTE节点建立4G网络连接；
S32、LTE节点接收到UE的接入5G网络的请求时，获取历史第二网络接入节点信息；
S33、根据获取的历史第二网络接入节点信息选定第二网络接入节点，即从NR1、NR2、NR3选定其中一个节点，具体可根据历史连接成功次数，确定NR节点的连接优先级，如这里的连接优先级排序为NR1、NR3、NR2，接着根据连接优先级选定NR1为第二网络接入节点，并向NR1节点发送提供接入资源的请求；
S34、NR1节点回复接入资源配置至LTE节点；
S35、LTE节点将接入资源配置发送给UE；
S36、UE使用接入资源配置，与NR1节点建立5G网络连接。
与现有技术相比，本申请实施例提供的节点选定方法具有如下优点：
通过应用本申请实施例的技术方案，第一网络接入节点根据历史第二网络接入节点信息选定第二网络接入节点，无需等待UE的小区信号质量测量和报告工作，有效提高第一网络接入节点选定第二网络接入节点的效率，进而节省UE接入第二网络花费的时间。
图7示出了本申请实施例提供的电子设备300。如图7所示，该电子设备300包括但不限于：
存储器320，用于存储程序；
处理器310，用于执行存储器320存储的程序，当处理器310执行存储器320存储的程序时，处理器310用于执行上述的节点选定方法。
处理器310和存储器320可以通过总线或者其他方式连接。
存储器320作为一种非暂态计算机可读存储介质，可用于存储非暂态软件程序以及非暂态性计算机可执行程序，如本申请实施例描述的节点选定方法。处理器310通过运行存储在存储器320中的非暂态软件程序以及指令，从而实现上述的节点选定方法。
存储器320可以包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需要的应用程序；存储数据区可存储执行上述的节点选定方法。此外，存储器320可以包括高速随机存取存储器，还可以包括非暂态存储器，例如至少一个磁盘存储器件、闪存器件、或其他非暂态固态存储器件。在一些实施方式中，存储器320可选包括相对于处理器310远程设置的存储器，这些远程存储器可以通过网络连接至该处理器310。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
实现上述的节点选定方法所需的非暂态软件程序以及指令存储在存储器320中，当被一个或者多个处理器310执行时，执行上述的节点选定方法，例如，执行图1中描述的方法步骤S110，图2中描述的方法步骤S111至S113，图3中描述的方法步骤S110和S120，图4中描述的方法步骤S210和S220，图5中描述的方法步骤S211至S212，图6中描述的方法步骤S221至S222。
本申请实施例还提供了一种存储介质，存储有计算机可执行指令，计算机可执行指令用于执行上述的节点选定方法。
在一实施例中，该存储介质存储有计算机可执行指令，该计算机可执行指令被一个或多个控制处理器310执行，例如，被上述电子设备300中的一个处理器310执行，可使得上述一个或多个处理器310执行上述的节点选定方法，例如，例如，执行图1中描述的方法步骤S110，图2中描述的方法步骤S111至S113，图3中描述的方法步骤S110和S120，图4中描述的方法步骤S210和S220，图5中描述的方法步骤S211至S212，图6中描述的方法步骤S221至S222。
以上所描述的实施例仅仅是示意性的，其中作为分离部件说明的单元可以是或者也可以不是物理上分开的，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统可以被实施为软件、固件、硬件及其适当的组合。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包括计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
以上是对本申请的较佳实施进行了具体说明，但本申请并不局限于上述实施方式，熟悉本领域的技术人员在不违背本申请精神的共享条件下还可作出种种等同的变形或替换，这些等同的变形或替换均包括在本申请权利要求所限定的范围内。

Claims (15)

  1. 一种节点选定方法，应用于非独立NSA组网下的用户设备UE，所述方法包括：
    向第一网络接入节点发送历史第二网络接入节点信息，以使所述第一网络接入节点根据所述历史第二网络接入节点信息选定第二网络接入节点；
    其中，所述历史第二网络接入节点信息包括N个历史第二网络接入节点的节点标识，N为大于等于1的整数，所述历史第二网络接入节点为曾与所述UE成功建立第二网络连接的第二网络接入节点。
  2. 根据权利要求1所述的方法，其中，所述向第一网络接入节点发送历史第二网络接入节点信息，包括：
    与所述第一网络接入节点建立第一网络连接；
    获取与所述第一网络接入节点匹配的历史第二网络接入节点信息；
    通过所述第一网络连接，将所述历史第二网络接入节点信息发送给所述第一网络接入节点。
  3. 根据权利要求1所述的方法，其中，所述历史第二网络接入节点信息还包括：对应于所述节点标识的历史连接成功次数。
  4. 根据权利要求1所述的方法，其中，所述N个历史第二网络接入节点为预设时间段内曾与所述UE成功建立第二网络连接的N个第二网络接入节点。
  5. 根据权利要求1所述的方法，还包括：
    与选定的第二网络接入节点建立第二网络连接，当第二网络连接建立失败，反馈连接失败信息至所述第一网络接入节点，以使所述第一网络接入节点根据所述历史第二网络接入节点信息重新选定第二网络接入节点。
  6. 根据权利要求1至5任一所述所述的方法，其中，所述历史第二网络接入节点信息存储于所述UE中。
  7. 一种节点选定方法，应用于非独立NSA组网下的第一网络接入节点，所述方法包括：
    获取历史第二网络接入节点信息，其中，所述历史第二网络接入节点信息包括N个历史第二网络接入节点的节点标识，N为大于等于1的整数，所述历史第二网络接入节点为曾与用户设备UE成功建立第二网络连接的第二网络接入节点；
    根据所述历史第二网络接入节点信息选定第二网络接入节点，使当前待接入第二网络的UE与选定的第二网络接入节点建立第二网络连接。
  8. 根据权利要求7所述的方法，其中，所述历史第二网络接入节点信息还包括：对应于所述节点标识的历史连接成功次数；
    所述根据所述历史第二网络接入节点信息选定第二网络接入节点，包括：
    根据所述历史连接成功次数，确定所述历史第二网络接入节点的连接优先级；
    根据所述连接优先级，从所述N个历史第二网络接入节点中选定第二网络接入节点。
  9. 根据权利要求7或8所述的方法，其中，所述N个历史第二网络接入节点为预设时间段内曾与UE成功建立第二网络连接的N个第二网络接入节点。
  10. 根据权利要求7或8所述的方法，其中，所述历史第二网络接入节点为曾与当前待接入第二网络的UE成功建立第二网络连接的第二网络接入节点。
  11. 根据权利要求7或8所述的方法，还包括：
    当接收到所述当前待接入第二网络的UE反馈的连接失败信息，根据所述历史第二网络接入节点信息重新选定第二网络接入节点。
  12. 根据权利要求7或8所述的方法，其中，所述历史第二网络接入 节点信息存储于所述当前待接入第二网络的UE中；
    所述获取历史第二网络接入节点信息包括：
    与所述当前待接入第二网络的UE建立第一网络连接；
    通过所述第一网络连接，接收由所述当前待接入第二网络的UE发送的历史第二网络接入节点信息。
  13. 根据权利要求7或8所述的方法，其中，
    所述历史第二网络接入节点信息存储于所述第一网络接入节点中；
    所述获取历史第二网络接入节点信息包括：
    所述第一网络接入节点从本地获取历史第二网络接入节点信息。
  14. 一种电子设备，包括：
    存储器，用于存储程序；
    处理器，用于执行所述存储器存储的程序，当所述处理器执行所述存储器存储的程序时，所述处理器用于执行如权利要求1至13中任一项所述的方法。
  15. 一种存储介质，其中，存储有计算机可执行指令，所述计算机可执行指令用于执行如权利要求1至13中任一项所述的方法。
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