Non-ground base station switching method, device, electronic device and storage medium

Abstract

The disclosed embodiments provide a non-ground base station switching method, device, electronic device and storage medium. The method includes: determining the first terminal to be switched according to the measurement report sent by the terminal; sending a candidate base station information request to the network access control network element of the corresponding operator according to the operator to which the first terminal belongs; receiving candidate base station feedback information sent by the operator; candidate base station feedback information is generated according to the candidate base station information request; according to the first base station information, the first terminal is switched to the first base station. Through this method, according to the operator information of the terminal to be switched, interaction is performed with the network access control network element of the corresponding operator to determine the first base station for the terminal to switch. The non-ground base station can be free from the restrictions of the operator to which the terminal belongs, and provide communication services for terminals of different operators, which greatly improves the resource utilization efficiency of the non-ground base station.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a non-ground base station switching method, device, electronic device and storage medium. Background Art

[0002] Since non-terrestrial network infrastructure such as satellites and high-altitude platforms have a wide coverage and are not restricted by ground conditions, they can be combined with ground networks to provide services to remote areas and meet the needs of emergencies. In the current 3GPP research, it is proposed to use non-terrestrial network infrastructure such as satellites and high-altitude platforms to provide access services to ground users. Conditional switching is specifically introduced in the 3GPP R16 version, which supports the terminal to decide whether to perform switching when certain conditions are met, which can effectively improve the success rate of switching.

[0003] However, the conditional switching process described in the current standard does not involve the core network in the switching preparation stage, which results in that non-ground base stations and ground base stations will not be able to directly select candidate base stations and exchange preparation information due to their different operators.

[0004] In addition, non-ground base stations often trigger simultaneous switching of large numbers of users, which will generate a large amount of signaling consumption. Moreover, the users that trigger the switching are dynamic and random and cannot form a fixed group, making it difficult to perform group switching. Summary of the invention

[0005] Embodiments of the present disclosure provide a non-ground base station switching method, device, electronic device, and storage medium.

[0006] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by the practice of the present disclosure.

[0007] According to one aspect of the present disclosure, a non-ground base station switching method is provided, including: determining at least one first terminal to be switched according to a measurement report sent by a terminal (UE); sending a candidate base station information request to a network access control network element of the corresponding operator according to the operator to which the first terminal belongs; the candidate base station information request at least includes: first terminal information; receiving candidate base station feedback information sent by the operator network access control network element; the candidate base station feedback information is generated according to the candidate base station information request; the candidate base station feedback information at least includes first base station information corresponding to the first terminal; according to the first base station information, switching the first terminal to the first base station.

[0008] In an exemplary embodiment, determining at least one first terminal to be switched based on a measurement report sent by the terminal includes: determining at least one first terminal to be switched based on the measurement report; determining the operator to which each of the first terminals belongs; and establishing a switching group for at least one second terminal belonging to the same operator.

[0009] In an exemplary embodiment, the establishing of a switching group for at least one second terminal belonging to the same operator includes: in response to the number of the second terminals belonging to the same operator exceeding a group threshold within a preset time period, establishing the switching group for the at least one second terminal; the group threshold corresponds to the operator.

[0010] In an exemplary embodiment, the first terminal information includes at least one of: a terminal device identifier, a PDU session identifier, and location information.

[0011] In an exemplary embodiment, the candidate base station feedback information is generated based on the candidate base station information request, including: determining at least one second base station matching the first terminal based on the first terminal information; and determining the first base station information corresponding to the first terminal in response to the second base station having the ability to connect to a non-ground base station.

[0012] In an exemplary embodiment, the candidate base station feedback information is generated according to the candidate base station information request, including: according to the switching group, respectively determining at least one third base station matching each of the second terminals; in response to the third base station having the ability to connect to a non-ground base station, respectively determining the first base station information corresponding to each of the second terminals; and adding the first base station information to the switching group.

[0013] In an exemplary embodiment, switching the first terminal to the first base station according to the first base station information includes: sending a switching request to the first base station; receiving a switching request confirmation sent by the first base station; the switching request confirmation is generated after the first base station performs access control according to the switching request; sending a wireless resource control (RRC) configuration instruction to the first terminal according to the switching request confirmation; and receiving RRC configuration completion feedback from the first terminal.

[0014] According to another aspect of the present disclosure, a non-ground base station switching device is provided, including: a switching determination module, configured to determine at least one first terminal to be switched according to a measurement report sent by the terminal; a candidate base station information request module, configured to send a candidate base station information request to a corresponding operator network access control network element according to the operator to which the first terminal belongs; the candidate base station information request includes at least: first terminal information; a candidate base station feedback information receiving module, configured to receive candidate base station feedback information sent by the operator network access control network element; the candidate base station feedback information is generated according to the candidate base station information request; the candidate base station feedback information includes at least first base station information corresponding to the first terminal; a base station switching module, configured to switch the first terminal to the first base station according to the first base station information.

[0015] According to another aspect of the present disclosure, an electronic device is provided, comprising: one or more processors; and a storage device configured to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the non-ground base station switching method as described in the above embodiments.

[0016] According to another aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the non-ground base station switching method as described in the above embodiments is implemented.

[0017] The non-ground base station switching method provided by the embodiment of the present disclosure interacts with the network access control element of the corresponding operator according to the operator information of the terminal to be switched to determine the first base station for the terminal to switch to, thereby completing the switching from the non-ground base station to the first base station. The switching method is not restricted by the operator to which the terminal belongs, and can provide communication services for terminals of different operators within the coverage area of ​​the non-ground base station, greatly improving the resource utilization efficiency of the non-ground base station.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description are used to explain the principles of the present disclosure, and do not constitute improper limitations on the present disclosure.

[0020] Figure 1 A schematic diagram of a network architecture of a communication system applicable to an embodiment of the present disclosure is shown;

[0021] Figure 2A flow chart of a non-ground base station switching method according to an embodiment of the present disclosure is shown;

[0022] Figure 3 A flow chart of a method for generating candidate base station feedback information according to an embodiment of the present disclosure is shown;

[0023] Figure 4 A flow chart showing another non-ground base station switching method according to an embodiment of the present disclosure is shown;

[0024] Figure 5 A flow chart showing a terminal switching method according to an embodiment of the present disclosure is shown;

[0025] Figure 6 A schematic structural diagram of a non-ground base station switching device according to an embodiment of the present disclosure is shown;

[0026] Figure 7 A schematic diagram of the structure of an electronic device suitable for implementing an exemplary embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0028] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0029] It should be noted that the ordinal numbers such as "first" and "second" mentioned in the embodiments of the present disclosure are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects, and the descriptions of "first" and "second" do not limit the objects to be different.

[0030] In order to solve the above problems, the embodiment of the present disclosure proposes a core network data storage method, which can be applied to various communication systems. For example, GSM (Global system for Mobile Communications, global mobile communications) system, CDMA (Code Division Multiple Access, code division multiple access) system, WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) system, LTE (Long Termevolution, long-term evolution) system, LTE frequency division duplex system, LTE time division duplex system, UMTS (Universal Mobiletelecommunication System, universal mobile telecommunication system), WIMAX (Worldwide Interoperability for Microwave Access, global interconnection microwave access) communication system, 5G (5th generation, fifth generation) system or communication systems applied to the future or other similar communication systems.

[0031] Figure 1 FIG. 1 is a schematic diagram showing a network architecture of a communication system applicable to an embodiment of the present disclosure. Figure 1As shown, the network architecture includes UE, RAN (Radio Access Network, wireless access network) equipment, AMF (Access and Mobility Management Function, access and mobility management function network element) network element, SMF (Session Management function, session management function) network element, UPF (User Plane Function, user plane function) network element, PCF (Policy Control Function, policy control function) network element, NSSF (Network Slice Selection Function, network slice selection function) network element, NRF (Network Repository Function, network warehouse function) network element, NWDAF (Network Data Analytics Function, network data analysis) network element, UDM (Unified Data Management, unified data management) network element, UDR (Unified Data Repository, unified data storage) network element, AUSF (Authentication Server Function, authentication server function) network element, NEF (Network Exposure Function, network open function) network element, AF (Application Function, application function) network element, and DN (Data Network, data network) connected to the operator network.

[0032] UE can be various electronic devices, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.). UE can communicate with the core network via non-RAN devices and exchange voice and / or data with RAN devices. UE can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a mobile Internet device, a wearable device, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the clients of the applications installed in different UEs are the same, or the clients of the same type of applications based on different operating systems. Based on different terminal platforms, the specific form of the client of the application can also be different. For example, the application client can be a mobile phone client, a computer client, etc.

[0033] RAN equipment is a device in the network used to access UE to the wireless network, and may include equipment in the access network that communicates with wireless terminals through one or more sectors on the air interface. UE can access the AMF network element through RAN equipment. Specifically, when the UE accesses the AMF network element through the RAN equipment, the UE can access the AMF network element through network-side equipment such as 5G and later versions of base stations (for example: 5G NR NB), or base stations in other communication systems (for example: eNB base stations).

[0034] The AMF network element is mainly used for UE mobility management, access authentication / authorization, and is also responsible for transmitting user policies between the UE and the PCF network element.

[0035] SMF network elements are mainly used for session management, UE Internet Protocol address allocation and management, selection of endpoints for manageable user plane functions, policy control, or charging function interfaces, and downlink data notification.

[0036] The UPF network element can be used for packet routing and forwarding, or QoS processing of user plane data, etc. User data can be accessed to the DN through this network element.

[0037] The PCF network element is a unified policy framework used to guide network behavior and provide policy rule information for control plane functional network elements (such as AMF network elements and SMF network elements).

[0038] The NSSF network element is mainly used to select appropriate network slices for UE services.

[0039] NRF network elements are mainly used to provide registration and discovery functions for network elements or services provided by network elements.

[0040] NWDAF network elements can collect data from various network functions and perform analysis and prediction.

[0041] The UDM network element is mainly used to manage the UE's contract information. For example, during the authentication process, it performs authentication vector calculation, key deduction, user identity decryption, etc. In the resynchronization process, it verifies AUTS according to the corresponding algorithm and initiates a re-authentication process.

[0042] The UDR network element is mainly used to store structured data information, including contract information, policy information, and network data or business data defined in a standard format.

[0043] The AUSF network element is mainly used to perform security authentication on terminal devices.

[0044] NEF network element is located between 5G core network and external third-party application function body, and may also have some internal application functions. It is responsible for managing the network data open to the outside world. All external applications that want to access the internal data of 5G core network must go through NEF network element. NEF network element provides corresponding security guarantee to ensure the security of external application to the network, and provides functions such as external application QoS customization capability opening, mobility status event subscription, and application function request distribution.

[0045] AF network elements are mainly used to convey the requirements of the application side to the network side, such as QoS requirements and user status event subscriptions. AF network elements can be third-party functional entities or application services deployed by operators. For application functional entities of third-party applications, they can also be authorized through NEF network elements when interacting with the core network. For example, a third-party application function directly sends a request to the NEF network element, and the NEF network element determines whether the AF network element is allowed to send the request. If the verification is successful, the request will be forwarded to the corresponding PCF network element or UDM network element.

[0046] It should be understood that the above-mentioned network elements or functions can be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform).

[0047] Figure 2 FIG. 1 is a flow chart of a non-ground base station switching method according to an embodiment of the present disclosure. Figure 2 As shown, the non-ground base station switching method may include the following steps.

[0048] In step S210, at least one first terminal to be switched is determined according to a measurement report sent by a terminal (UE).

[0049] In the disclosed embodiment, the non-ground base station switching method can be executed by a non-ground base station. The non-ground base station is different from the traditional base station deployed on the ground, but is deployed in a non-ground air-space scene. Specifically, it can be a low Earth orbiting satellite (LEO), a medium Earth orbiting satellite (MEO) or a geosynchronous Earth orbiting satellite (GEO) in a satellite communication system; it can be an aerial platform (High Altitude Platform Systems, HAPS), such as an airplane, a balloon or an airship; it can be an international mobile communication base station (HIBS); it can also be a low-altitude unmanned aerial vehicle (UAV), etc.

[0050] In the disclosed embodiment, a non-ground base station can access multiple terminals at the same time and receive measurement reports sent by each terminal. The measurement report can be based on the non-ground base station's request to upload the measurement report, or it can be actively uploaded by the terminal based on a trigger condition. The measurement report includes at least: reference signal received power (RSRP) and location information. The reference signal received power is one of the key parameters that can represent the strength of the wireless signal in the network and one of the physical layer measurement requirements. It is the average value of the signal power received on all REs (resource elements) that carry the reference signal in a symbol. It should be pointed out that there are many measurement parameters that can be used to measure the current network status of the terminal, not limited to RSRP.

[0051] In an exemplary embodiment, the non-ground base station is not limited to accessing terminals of fixed ground operators, but can access terminals of different ground operators. In this way, the advantage of the wide coverage of the non-ground base station can be fully utilized.

[0052] In the disclosed embodiment, the non-ground base station can determine whether the relevant terminal needs to trigger a switching operation based on the measurement report and radio resource management (RRM) information uploaded by the terminal, that is, determine at least one first terminal to be switched. The RRM provides service quality assurance for wireless user terminals in the network under the condition of limited bandwidth. Its basic starting point is to flexibly allocate and dynamically adjust the available resources of the wireless transmission part and the network under the conditions of uneven distribution of network traffic and fluctuations of channel characteristics due to channel attenuation and interference, so as to maximize the utilization of wireless spectrum, prevent network congestion and keep the signaling load as small as possible.

[0053] In step S220, according to the operator to which the first terminal belongs, a candidate base station information request is sent to a network access control network element of the corresponding operator; the candidate base station information request includes at least: first terminal information.

[0054] In the disclosed embodiment, the non-terrestrial base station selects a corresponding interface that can communicate with the core network of the corresponding operator according to the operator information to which the first terminal belongs, so as to send a candidate base station information request to the network access control network element of the corresponding operator. The network access control network element may be an access and mobility management function (AMF) or a network access configuration function (NACF).

[0055] In an exemplary embodiment, the first terminal to be switched includes {UE1, UE2, UE3, UE4, UE5, UE6, UE7, UE8}. Among them, {UE1, UE2, UE3, UE4} belongs to operator TerA, and {UE5, UE6, UE7, UE8} belongs to operator TerB. The non-terrestrial base station selects to send a candidate base station information request of the terminal {UE1, UE2, UE3, UE4} to the AMF of operator TerA, and selects to send a candidate base station information request of the terminal {UE5, UE6, UE7, UE8} to the NACF of operator TerB.

[0056] In the disclosed embodiment, the candidate base station information request includes at least: first terminal information. The first terminal information includes at least: at least one of the terminal device identifier, the PDU session identifier, and the location information. The terminal device identifier may be a terminal device ID, a MAC address, or a user permanent identifier (SUPI), etc. The PDU session identifier (PDU Session ID) is an identifier of the PDU Session in the UE and the 5G network. The location information is the coordinate information of the terminal's geographical location, such as longitude and latitude information, GPS positioning information, Beidou positioning information, etc.

[0057] In step S230, candidate base station feedback information sent by the operator network access control network element is received; the candidate base station feedback information is generated according to the candidate base station information request; the candidate base station feedback information at least includes first base station information corresponding to the first terminal.

[0058] In the embodiment of the present disclosure, the network access control network element of each operator matches a suitable candidate base station (i.e., the first base station) for each first terminal according to the first terminal information in the candidate base station information request, and sends the candidate base station feedback information to the non-ground base station. The number of first base stations matched to the first terminal can be none, one or more.

[0059] In step S240, the first terminal is switched to the first base station according to the first base station information.

[0060] In the disclosed embodiment, the non-ground base station switches the first terminal to the corresponding first base station according to the first base station information corresponding to each first terminal in the candidate base station feedback information, thereby completing the base station switching operation.

[0061] The non-ground base station switching method provided by the embodiment of the present disclosure interacts with the network access control network element of the corresponding operator according to the operator information of the terminal to be switched to determine the first base station for the terminal to switch to, thereby completing the switching from the non-ground base station to the first base station. The network access control network element of the operator supports determining the matching first base station according to the first terminal information of the terminal, and provides a candidate base station for the terminal switching. The switching method is not restricted by the operator to which the terminal belongs, and can provide communication services for terminals of different operators within the coverage area of ​​the non-ground base station, greatly improving the resource utilization efficiency of the non-ground base station.

[0062] Figure 3 FIG. 4 is a flow chart showing a method for generating candidate base station feedback information according to an embodiment of the present disclosure. Figure 3 As shown, the candidate base station feedback information is generated according to the candidate base station information request, and may also include the following steps.

[0063] In step S310, at least one second base station matching the first terminal is determined according to the first terminal information.

[0064] In the embodiment of the present disclosure, the network access control network element of the operator selects at least one second base station that can provide communication services for the first terminal according to the PDU session identifier and location information in the first terminal information. The PDU session identifier can ensure that the ground base station after switching can provide continuous service services for the terminal, and the user service will not be interrupted. The location information can be used to determine the list of ground base stations that can provide communication services for the terminal.

[0065] In an exemplary embodiment, a non-terrestrial base station sends a candidate base station information request for the terminal {UE1, UE2, UE3, UE4} to the AMF of the operator TerA. The AMF of the operator TerA matches the second base station that can provide communication services for each UE according to the first terminal information of each UE. Among them, the base stations that can provide communication services for UE1 are base station 1 and base station 2; the base stations that can provide communication services for UE2 are base station 2 and base station 3; the base station that can provide communication services for UE3 is base station 2; the base station that can provide communication services for UE4 is base station 3.

[0066] In step S320, in response to the second base station having a connection capability with a non-terrestrial base station, first base station information corresponding to the first terminal is determined.

[0067] In the disclosed embodiment, since a switching operation interaction with a non-ground base station is required, the candidate base station needs to have a connection capability with the non-ground base station. Based on this, the at least one second base station is screened to determine the first base station information corresponding to the first terminal.

[0068] In an exemplary embodiment, among the above-mentioned base stations 1, 2 and 3, base station 1 does not have the ability to connect to non-ground base stations, and base stations 2 and 3 have the ability to connect to non-ground base stations. Therefore, after screening, it is determined that the first base station corresponding to UE1 is base station 2, the first base station corresponding to UE2 is base station 2, the first base station corresponding to UE3 is base stations 2 and 3, and the first base station corresponding to UE4 is base station 3.

[0069] In an exemplary embodiment, the candidate base station feedback information includes not only the correspondence between each first terminal and the first base station, but also the IP address information of each first base station. The candidate base station feedback information finally fed back to the non-ground base station can be shown in the following Table 1. Among them, Candidate AN ID represents the ID information of the first base station, and Candidate ANIP represents the IP address information of each first base station.

[0070]

[0071] Table 1

[0072] The non-ground base station switching method provided by the embodiment of the present disclosure supports the operator's network access control network element to determine a matching first base station based on the first terminal information of the terminal, and screens the candidate base stations based on whether the base stations have the ability to connect to the non-ground base stations, so as to finally determine a suitable candidate base station for the terminal.

[0073] Figure 4 FIG. 2 is a flow chart showing another non-ground base station switching method according to an embodiment of the present disclosure. Figure 4 As shown, in step S210, the following steps may also be included.

[0074] In step S410, at least one of the first terminals to be switched is determined according to the measurement report.

[0075] In the embodiment of the present disclosure, step S410 is substantially similar to the aforementioned step S210 and will not be described in detail herein.

[0076] In step S420, the operator to which each of the first terminals belongs is determined.

[0077] In the embodiment of the present disclosure, the non-ground base station can access terminals of multiple different ground operators, giving full play to the advantage of the wide coverage of the non-ground base station. When performing terminal access switching, the present disclosure does not switch the operator accessed by the terminal. Therefore, it is necessary to determine the operator to which each first terminal belongs, so as to select the network access control network element of the corresponding operator in the subsequent steps to screen the candidate base stations.

[0078] In an exemplary embodiment, the first terminal to be switched accessed by the non-terrestrial base station includes {UE1, UE2, UE3, UE4, UE5, UE6, UE7, UE8}, wherein {UE1, UE2, UE3, UE4} belong to operator TerA, and {UE5, UE6, UE7, UE8} belong to operator TerB.

[0079] In step S430, a handover group is established for at least one second terminal belonging to the same operator.

[0080] In the disclosed embodiment, considering that non-ground base stations often trigger simultaneous handover of large-scale users, if each terminal performs handover signaling interaction separately, a large amount of signaling consumption will be generated, and the user triggering the handover is dynamic and random. Based on this, in step S430, the non-ground base station establishes a handover group for the second terminal belonging to the same operator. And in subsequent steps, based on the handover group, it interacts with the network access control network element of the corresponding operator. In this way, the consumption of related signaling is greatly reduced.

[0081] In an exemplary embodiment, the non-ground base station sets a time period, and performs a handover group formation and signaling operation on the second terminal to be handed over based on the time period. For example, the time period can be set to 5 ms.

[0082] In an exemplary embodiment, the non-ground base station can also set different group thresholds for different operators. In response to the number of second terminals belonging to the same operator within a preset time period exceeding the group threshold of the operator, the handover group is established for multiple second terminals of the operator. In this way, the non-ground base station can provide differentiated services to different operators.

[0083] For example, the non-terrestrial base station sets a group threshold of 3 for operator TerA and a group threshold of 5 for operator TerB. For the above example, {UE1, UE2, UE3, UE4} belongs to operator TerA, and {UE5, UE6, UE7, UE8} belongs to operator TerB. Since the number of second terminals of operator TerB does not exceed its group threshold, a handover group is not established for it. However, the number of second terminals of operator TerA exceeds its group threshold, so a handover group is established for it. Correspondingly, the first terminal information corresponding to the handover group of TerA is: {[UE_ID=1, PDU Session IDs=23, 24, 25, Location=E117°N40°], [UE_ID=2, PDU Session IDs=26, 27, Location=E117°N45°], [UE_ID=3, PDU Session IDs=28, Location=E118°N40°], [UE_ID=4, PDU Session IDs=29, 30, Location=E119°N41°]}. Among them, UE_ID is the device identifier of the terminal, PDU Session IDs is the PDU session identifier of the terminal, and Location is the location information of the terminal.

[0084] like Figure 4 As shown, in step S230, the candidate base station feedback information is generated according to the candidate base station information request, and the following steps may also be included.

[0085] In step S440, at least one third base station matching each of the second terminals is determined respectively according to the handover group.

[0086] In the embodiment of the present disclosure, step S440 is substantially similar to the aforementioned step S310 and will not be described in detail herein.

[0087] In step S450, in response to the third base station having a connection capability with a non-terrestrial base station, first base station information corresponding to each of the second terminals is determined respectively.

[0088] In the embodiment of the present disclosure, step S450 is substantially similar to the aforementioned step S320, and will not be described in detail herein. The first base station information corresponding to each second terminal in the handover group is determined, as shown in the aforementioned Table 1.

[0089] In step S460, the first base station information is added to the handover group.

[0090] In the disclosed embodiment, the first base station information shown in Table 1 is added to the aforementioned handover group, and the updated handover group information is fed back to the non-ground base station as candidate base station feedback information.

[0091] In the non-ground base station switching method provided by the embodiment of the present disclosure, the non-ground base station establishes a switching group for the terminals to be switched belonging to the same operator, and uniformly performs switching signaling interaction on the switching group, which greatly reduces the consumption of related signaling. At the same time, the non-ground base station can provide different group thresholds for different operators, thereby providing differentiated services for different operators.

[0092] Figure 5 FIG. 4 is a flow chart showing a terminal switching method according to an embodiment of the present disclosure. Figure 5 As shown, in step S240, the following steps may also be included.

[0093] In step S510, a handover request is sent to the first base station.

[0094] In the disclosed embodiment, based on the correspondence between the first terminal and the first base station and the first base station information in the candidate base station feedback information, the non-ground base station sends a switching request to the first base station.

[0095] In step S520, a handover request confirmation sent by the first base station is received; the handover request confirmation is generated after the first base station performs admission control according to the handover request.

[0096] In the disclosed embodiment, the first base station performs admission control after receiving the handover request, generates a handover request confirmation after passing the admission control, and feeds back the confirmation information to the non-ground base station.

[0097] In step S530, a radio resource control (RRC) configuration instruction is sent to the first terminal according to the handover request confirmation.

[0098] In an embodiment of the present disclosure, after receiving a handover request confirmation, the non-ground base station sends a radio resource control (RRC) configuration instruction to the corresponding first terminal, so as to reconfigure the RRC of the first terminal.

[0099] In step S540, an RRC configuration completion feedback of the first terminal is received.

[0100] In the embodiment of the present disclosure, an RRC configuration completion feedback sent by the first terminal is received to complete the switching operation process of the first terminal.

[0101] Based on the same inventive concept, the embodiment of the present disclosure provides a non-ground base station switching device, as described in the following embodiment. Since the principle of solving the problem in the communication authentication device embodiment is similar to that in the above method embodiment, the real-time implementation of the communication authentication device embodiment can refer to the implementation of the above method embodiment, and the repeated parts will not be repeated.

[0102] Figure 6 FIG. 2 shows a schematic diagram of a non-ground base station switching device according to an embodiment of the present disclosure. Figure 6 As shown, the non-terrestrial base station switching device 600 may include: a switching determination module 610 , a candidate base station information request module 620 , a candidate base station feedback information receiving module 630 and a base station switching module 640 .

[0103] The handover determination module 610 is configured to determine at least one first terminal to be handed over according to the measurement report sent by the terminal.

[0104] The candidate base station information request module 620 is configured to send a candidate base station information request to the corresponding operator network access control network element according to the operator to which the first terminal belongs; the candidate base station information request at least includes: the first terminal information.

[0105] The candidate base station feedback information receiving module 630 is configured to receive candidate base station feedback information sent by the operator network access control network element; the candidate base station feedback information is generated according to the candidate base station information request; the candidate base station feedback information at least includes the first base station information corresponding to the first terminal.

[0106] The base station switching module 640 is configured to switch the first terminal to the first base station according to the first base station information.

[0107] In an exemplary embodiment, the switching determination module 610 may also be used to: receive a measurement report sent by at least one of the terminals; the measurement report at least includes: reference signal received power (RSRP) and location information.

[0108] In an exemplary embodiment, the switching determination module 610 may also be used to: determine at least one of the first terminals to be switched according to the measurement report; determine the operator to which each of the first terminals belongs; and establish a switching group for at least one second terminal belonging to the same operator.

[0109] In an exemplary embodiment, the switching determination module 610 may also be used to: establish the switching group for the at least one second terminal in response to the number of the second terminals belonging to the same operator within a preset time period exceeding a group threshold; the group threshold corresponds to the operator.

[0110] In an exemplary embodiment, the first terminal information includes at least one of: a terminal device identifier, a PDU session identifier, and location information.

[0111] In an exemplary embodiment, the candidate base station feedback information receiving module 630 can also be used to: determine at least one second base station matching the first terminal based on the first terminal information; and determine the first base station information corresponding to the first terminal in response to the second base station having the ability to connect to a non-ground base station.

[0112] In an exemplary embodiment, the candidate base station feedback information receiving module 630 can also be used to: determine at least one third base station matching each of the second terminals according to the switching group; determine the first base station information corresponding to each of the second terminals in response to the third base station having the ability to connect to a non-ground base station; and add the first base station information to the switching group.

[0113] In an exemplary embodiment, the base station switching module 640 can also be used to: send a switching request to the first base station; receive a switching request confirmation sent by the first base station; the switching request confirmation is generated based on the first base station performing access control according to the switching request; according to the switching request confirmation, send a wireless resource control (RRC) configuration instruction to the first terminal; receive RRC configuration completion feedback from the first terminal.

[0114] Figure 7 The structure diagram of the electronic device suitable for implementing the exemplary embodiment of the present disclosure is shown. Figure 7 An electronic device 700 according to this embodiment of the present invention will be described. Figure 7 The electronic device 700 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0115] like Figure 7 As shown, the electronic device 700 is in the form of a general computing device. The components of the electronic device 700 may include, but are not limited to: the at least one processing unit 710, the at least one storage unit 720, a bus 730 connecting different system components (including the storage unit 720 and the processing unit 710), and a display unit 740.

[0116] Among them, the storage unit stores a program code, and the program code can be executed by the processing unit 710, so that the processing unit 710 executes the steps of various exemplary embodiments of the present invention described in the above "Exemplary Method" section of this specification. Specifically, when the electronic device 710 provided in the embodiment of the present disclosure is a non-ground base station, the following steps in the above embodiment can be executed: Step S210, determine at least one first terminal to be switched according to the measurement report sent by the terminal (UE); Step S220, according to the operator to which the first terminal belongs, send a candidate base station information request to the network access control network element of the corresponding operator; the candidate base station information request at least includes: first terminal information; Step S230, receive candidate base station feedback information sent by the operator network access control network element; the candidate base station feedback information is generated according to the candidate base station information request; the candidate base station feedback information at least includes the first base station information corresponding to the first terminal; Step S240, according to the first base station information, switch the first terminal to the first base station.

[0117] The storage unit 720 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 7201 and / or a cache storage unit 7202 , and may further include a read-only storage unit (ROM) 7203 .

[0118] The storage unit 720 may also include a program / utility 7204 having a set (at least one) of program modules 7205, such program modules 7205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0119] Bus 730 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0120] The electronic device 700 may also communicate with one or more external devices 770 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may also communicate with one or more devices that enable a user to interact with the electronic device 700, and / or communicate with any device that enables the electronic device 700 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface 750. Furthermore, the electronic device 700 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via a network adapter 760. As shown, the network adapter 760 communicates with other modules of the electronic device 700 via a bus 730. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 700, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, etc.

[0121] In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the above method of the present specification is stored. In some possible implementations, various aspects of the present invention can also be implemented in the form of a program product, which includes a program code, and when the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps according to various exemplary embodiments of the present invention described in the above "Exemplary Method" section of the present specification.

[0122] The program product for implementing the above method according to the embodiment of the present invention may adopt a portable compact disk read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, apparatus, or device.

[0123] The program product may use any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0124] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0125] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0126] Program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0127] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0128] In addition, although the steps of the method in the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0129] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0130] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0131] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A non-terrestrial base station switching method, characterized in that: The method comprises: Determining at least one first terminal to be switched according to the measurement report sent by the terminal (UE); According to the operator to which the first terminal belongs, sending a candidate base station information request to a network access control network element of the corresponding operator; the candidate base station information request at least includes: first terminal information; receiving candidate base station feedback information sent by the operator network access control network element; the candidate base station feedback information is generated according to the candidate base station information request; the candidate base station feedback information at least includes first base station information corresponding to the first terminal; According to the first base station information, switching the first terminal to the first base station; The determining, according to the measurement report sent by the terminal, at least one first terminal to be switched includes: Determining, according to the measurement report, at least one first terminal to be switched; Determining the operator to which each of the first terminals belongs; In response to the number of second terminals belonging to the same operator within a preset time period exceeding a group threshold, a handover group is established for at least one of the second terminals; the group threshold corresponds to the operator.

2. The method according to claim 1, characterized in that The first terminal information includes at least one of: a terminal device identifier, a PDU session identifier, and location information.

3. The method according to claim 1 or 2, characterized in that: The candidate base station feedback information is generated according to the candidate base station information request, including: Determine, according to the first terminal information, at least one second base station matching the first terminal; In response to the second base station having a connection capability with a non-terrestrial base station, first base station information corresponding to the first terminal is determined.

4. The method according to claim 1, characterized in that: The candidate base station feedback information is generated according to the candidate base station information request, including: Determine, according to the handover group, at least one third base station matching each of the second terminals; In response to the third base station having a connection capability with a non-terrestrial base station, respectively determining first base station information corresponding to each of the second terminals; Add the first base station information to the handover group.

5. The method according to claim 1, characterized in that The step of switching the first terminal to the first base station according to the first base station information includes: Sending a handover request to the first base station; receiving a handover request confirmation sent by the first base station; the handover request confirmation is generated after the first base station performs admission control according to the handover request; Sending a radio resource control (RRC) configuration instruction to the first terminal according to the handover request confirmation; Receive RRC configuration completion feedback from the first terminal.

6. A non-ground base station switching device, characterized in that: include: A handover determination module, configured to determine at least one first terminal to be handed over according to the measurement report sent by the terminal; The determining, according to the measurement report sent by the terminal, at least one first terminal to be switched includes: determining, according to the measurement report, at least one first terminal to be switched; determining the operator to which each of the first terminals belongs; in response to the number of second terminals belonging to the same operator within a preset time period exceeding a group threshold, establishing a switching group for at least one of the second terminals; the group threshold corresponds to the operator; The candidate base station information request module is configured to send a candidate base station information request to a corresponding operator network access control network element according to the operator to which the first terminal belongs; the candidate base station information request at least includes: first terminal information; A candidate base station feedback information receiving module is configured to receive candidate base station feedback information sent by the operator network access control network element; the candidate base station feedback information is generated according to the candidate base station information request; the candidate base station feedback information at least includes the first base station information corresponding to the first terminal; The base station switching module is configured to switch the first terminal to the first base station according to the first base station information.

7. An electronic device, characterized in that: include: one or more processors; A storage device configured to store one or more programs, which, when executed by the one or more processors, enable the one or more processors to implement the method according to any one of claims 1 to 5.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 5 is implemented.

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