Information acquisition method, equipment, device and storage medium

Abstract

The invention provides an information acquisition method, equipment and device and a computer storage medium. The method comprises: a user equipment receiving a system message sent by a satellite base station, the system message comprising first indication information for indicating whether a ground base station exists; sending the position information of the user equipment to the satellite base station; and receiving a candidate ground base station information list sent by the satellite base station, the distance between the ground base station included in the candidate ground base station information list and the user equipment satisfying a set condition. Therefore, the user equipment can obtain the information of the ground base station in time, and can select a proper ground base station and execute effective measurement based on the information in the candidate ground base station information list when mobility problems such as switching and reselection from the satellite base station to the ground base station need to be processed, so that the energy consumption of the terminal can be saved, and the mobility of the satellite base station is improved. And the effectiveness of the mobility of the terminal is improved.

Description

Technical Field

[0001] This application relates to the field of satellite communication technology, and in particular, to a method, device, apparatus, and storage medium for obtaining information. Background Art

[0002] With the development of satellite communication technology, satellite networks (also known as NTN (Non Terrestrial Network) networks) are increasingly applied to people's production and life. Especially in places with special geographical environments, satellite networks can make up for the deficiencies of terrestrial networks (also known as TN (Terrestrial Network) networks) in communication.

[0003] However, research has found that the beam coverage range of a communication satellite is relatively large. In contrast, the signal coverage range of a terrestrial base station is quite limited, or rather small. This means that within the beam coverage range of a communication satellite, there may be hundreds or thousands of terrestrial base stations. When a terminal processes mobility issues such as handover and reselection from a satellite base station to a terrestrial base station, due to the overly large beam coverage range of the communication satellite, the number of neighboring cell information of terrestrial base stations broadcast to the terminal is relatively large, and the terminal will blindly initiate measurements, resulting in relatively high power consumption of the terminal and poor handling of mobility issues. Summary of the Invention

[0004] Embodiments of this application provide a method, device, apparatus, and storage medium for obtaining information, which solve the problems that when a terminal processes mobility issues such as handover and reselection from a satellite base station to a terrestrial base station, blind measurement causes relatively high power consumption of the terminal and poor handling of mobility issues.

[0005] In a first aspect, an embodiment of this application provides a method for obtaining information, including:

[0006] A user equipment receives a system message sent by a satellite base station, where the system message includes first indication information for indicating whether there is a terrestrial base station;

[0007] The user equipment sends the location information of the user equipment to the satellite base station based on the first indication information;

[0008] The user equipment receives a list of candidate terrestrial base station information sent by the satellite base station, where the distance between the terrestrial base stations included in the list of candidate terrestrial base station information and the user equipment meets a set condition.

[0009] In an implementation manner of the first aspect of this application, the list of candidate terrestrial base station information includes the location information of each terrestrial base station or the signal coverage range of each terrestrial base station;

[0010] The method further includes:

[0011] When the user equipment determines that the distance to the first terrestrial base station included in the candidate terrestrial base station information list reaches a set threshold, or determines that its location is within the signal coverage range of the first base station, the user equipment performs one or more operations including measurement, handover, cell reselection, and mobility management on the first terrestrial base station.

[0012] In an implementation manner of the first aspect of the present application, the method further includes:

[0013] The user equipment stores the candidate base station information list.

[0014] In an implementation manner of the first aspect of the present application, the user equipment sends the location information of the user equipment to the satellite base station, including:

[0015] The user equipment sends the location information of the user equipment to the satellite base station according to the first indication information indicating the existence of a terrestrial base station carried in the system message.

[0016] In an implementation manner of the first aspect of the present application, the user equipment sends the location information of the user equipment to the satellite base station, including:

[0017] The user equipment sends the location information of the user equipment to the satellite base station through a registration request message / handover request message; or,

[0018] The user equipment sends a measurement report / user information response message / base station query request message to the satellite base station, and the location information of the user equipment is carried in the measurement report / the user information response message / the base station query request message.

[0019] In a second aspect, an embodiment of the present application further provides an information acquisition method, including:

[0020] The satellite base station receives the location information of the user equipment sent by the user equipment;

[0021] The satellite base station acquires terrestrial base station information whose distance from the user equipment meets a set condition according to the location information of the user equipment;

[0022] The satellite base station sends a candidate terrestrial base station list to the user equipment according to the terrestrial base station information.

[0023] In an implementation manner of the second aspect of the present application, the satellite base station acquires terrestrial base station information whose distance from the user equipment meets a set condition according to the location information of the user equipment, including:

[0024] The satellite base station sends a query request message to the core network device, and the location information of the user equipment is carried in the query request message;

[0025] The satellite base station receives a query response message sent by the core network device, and the relevant information of the terrestrial base stations whose distance from the user equipment meets the set conditions is included in the query response message;

[0026] Wherein, the relevant information includes the location information of each terrestrial base station or the coverage area of each terrestrial base station.

[0027] In an implementation manner of the second aspect of the present application, the satellite base station sends a candidate terrestrial base station list to the user equipment, including:

[0028] The satellite base station sends a candidate terrestrial base station list to the user equipment through an RRC message / through transparent transmission, and the location information of each terrestrial base station or the coverage area of each terrestrial base station is included in the candidate terrestrial base station list.

[0029] In a third aspect, an embodiment of the present application further provides an information acquisition device, which is applied to the user equipment and includes: a memory, a transceiver, and a processor; wherein, the memory is used to store computer programs; the transceiver is used to receive and send data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

[0030] Receive a system message sent by the satellite base station, and the first indication information for indicating whether there is a terrestrial base station is included in the system message;

[0031] Based on the first indication information, send the location information of the user equipment to the satellite base station;

[0032] Receive the candidate terrestrial base station information list sent by the satellite base station, wherein the distance between the terrestrial base stations included in the candidate terrestrial base station information list and the user equipment meets the set conditions.

[0033] In an implementation manner of the third aspect of the present application, the location information of each terrestrial base station or the signal coverage area of each terrestrial base station is included in the candidate terrestrial base station information list;

[0034] The processor is further used to read the computer programs in the memory and perform the following operations:

[0035] When it is determined that the distance to the first terrestrial base station included in the candidate terrestrial base station information list reaches a set threshold, or it is determined that the location is within the signal coverage range of the first base station, perform one or more operations including measurement, handover, cell reselection, and mobility management on the first terrestrial base station.

[0036] In an implementation manner of the third aspect of the present application, the processor is further configured to read the computer program in the memory and perform the following operations:

[0037] Store the candidate base station information list.

[0038] In an implementation manner of the third aspect of the present application, the processor is further configured to read the computer program in the memory and perform the following operations: Send the location information of the user equipment to the satellite base station, including:

[0039] Send the location information of the user equipment to the satellite base station according to the first indication information of the existence of the terrestrial base station carried in the system message.

[0040] In an implementation manner of the third aspect of the present application, the processor is further configured to read the computer program in the memory and perform the following operations: Send the location information of the user equipment to the satellite base station, including:

[0041] Send the location information of the user equipment to the satellite base station through a registration request message / handover request message; or,

[0042] Send a measurement report / user information response message / base station query request message to the satellite base station, and the measurement report / the user information response message / the base station query request message carries the location information of the user equipment.

[0043] Fourth aspect, an embodiment of the present application further provides an information acquisition device, and the processing device is applied to a satellite base station, including: a memory, a transceiver, and a processor; wherein, the memory is used to store a computer program; the transceiver is used to receive and send data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0044] Receive the location information of the user equipment sent by the user equipment;

[0045] Obtain the terrestrial base station information whose distance from the user equipment meets the set conditions according to the location information of the user equipment;

[0046] Send a candidate terrestrial base station list to the user equipment according to the terrestrial base station information.

[0047] In an implementation of the fourth aspect of the present application, the processor is configured to read the computer program in the memory and perform the following operations: obtain ground base station information whose distance from the user equipment meets a set condition according to the location information of the user equipment, including:

[0048] Send a query request message to the core network device, where the query request message carries the location information of the user equipment;

[0049] Receive a query response message sent by the core network device, where the query response message contains relevant information of ground base stations whose distance from the user equipment meets a set condition;

[0050] Wherein, the relevant information includes the location information of each ground base station or the coverage range of each ground base station.

[0051] In an implementation of the fourth aspect of the present application, the processor is configured to read the computer program in the memory and perform the following operations: send a candidate ground base station list to the user equipment, including:

[0052] Send the candidate ground base station list to the user equipment through an RRC message / in a transparent transmission manner, where the candidate ground base station list contains the location information of each ground base station or the coverage range of each ground base station.

[0053] In a fifth aspect, an information acquisition device is further provided in an embodiment of the present application. The information acquisition device includes:

[0054] A receiving unit, configured to receive a system message sent by a satellite base station, where the system message contains first indication information for indicating whether there is a ground base station;

[0055] A sending unit, configured to send the location information of the user equipment to the satellite base station based on the first indication information;

[0056] The receiving unit is further configured to receive a candidate ground base station information list sent by the satellite base station, where the ground base stations included in the candidate ground base station information list have a distance from the user equipment that meets a set condition.

[0057] In an implementation of the fifth aspect of the present application, the candidate ground base station information list contains the location information of each ground base station or the signal coverage range of each ground base station;

[0058] The information acquisition device further includes: a processing unit, where

[0059] The processing unit is configured to perform one or more operations including measurement, handover, cell reselection, and mobility management on the first terrestrial base station when it is determined that the distance to the first terrestrial base station included in the candidate terrestrial base station information list reaches a set threshold, or it is determined that the location is within the signal coverage range of the first base station.

[0060] In an implementation manner of the fifth aspect of the present application, the information acquisition device further includes: a storage unit, where

[0061] The storage unit is configured to store the candidate base station information list.

[0062] In an implementation manner of the fifth aspect of the present application, the sending unit sends the location information of the user equipment to the satellite base station, including:

[0063] Sending the location information of the user equipment to the satellite base station according to the first indication information indicating the existence of a terrestrial base station carried in the system message.

[0064] In an implementation manner of the fifth aspect of the present application, the sending unit sends the location information of the user equipment to the satellite base station, including:

[0065] Sending the location information of the user equipment to the satellite base station through a registration request message / handover request message; or

[0066] Sending a measurement report / user information response message / base station query request message to the satellite base station, where the measurement report / the user information response message / the base station query request message carries the location information of the user equipment.

[0067] Sixth aspect, an embodiment of the present application further provides an information acquisition device, where the information acquisition device includes:

[0068] A receiving unit, configured to receive the location information of the user equipment sent by the user equipment;

[0069] An acquisition unit, configured to acquire terrestrial base station information whose distance from the user equipment meets a set condition according to the location information of the user equipment;

[0070] A sending unit, configured to send a candidate terrestrial base station list to the user equipment according to the terrestrial base station information.

[0071] In an implementation manner of the sixth aspect of the present application, the acquisition unit acquires terrestrial base station information whose distance from the user equipment meets a set condition according to the location information of the user equipment, including:

[0072] Send a query request message to the core network device, where the location information of the user equipment is carried in the query request message;

[0073] Receive the query response message sent by the core network device, where the relevant information of the terrestrial base stations whose distance from the user equipment meets the set conditions is included in the query response message;

[0074] Wherein, the relevant information includes the location information of each terrestrial base station or the coverage range of each terrestrial base station.

[0075] In an implementation manner of the sixth aspect of the present application, the sending unit sends a candidate terrestrial base station list to the user equipment, including:

[0076] Send the candidate terrestrial base station list to the user equipment through an RRC message / in a transparent transmission manner, where the candidate terrestrial base station list includes the location information of each terrestrial base station or the coverage range of each terrestrial base station.

[0077] In a seventh aspect, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, characterized in that when the computer program is executed by a processor, the steps of the information acquisition method described above are implemented.

[0078] The beneficial effects of the above technical solutions of the present application are:

[0079] In the embodiment of the present application, the satellite base station carries first indication information for indicating whether there is a terrestrial base station in the system message sent to the user equipment. Once the user equipment receives the indication information for indicating the existence of a terrestrial base station in the system message sent by the satellite base station, the user equipment sends the location information of the user equipment to the satellite base station. Furthermore, the user equipment can obtain a candidate terrestrial base station information list from the satellite base station, and the distance between the terrestrial base stations included in the candidate terrestrial base station information list and the user equipment meets the set conditions. In this way, the user equipment will be able to obtain the information of the terrestrial base stations in a timely manner. When dealing with mobility issues such as handover and reselection from the satellite base station to the terrestrial base station, the user equipment can select a suitable terrestrial base station based on the information in these candidate terrestrial base station information lists and perform effective measurements, which can not only save the terminal power consumption but also improve the effectiveness of the terminal mobility. Description of the Drawings

[0080] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0081] Figure 1 A schematic flowchart showing the information acquisition method according to an embodiment of the present application;

[0082] Figure 2 A schematic flowchart showing the information acquisition method according to an embodiment of the present application;

[0083] Figure 3 A schematic diagram showing the information acquisition according to an embodiment of the present application;

[0084] Figure 4 A schematic structural diagram of the information acquisition device according to an embodiment of the present application;

[0085] Figure 5 A schematic structural diagram of the information acquisition device according to an embodiment of the present application;

[0086] Figure 6 A schematic structural diagram of the information acquisition apparatus according to an embodiment of the present application;

[0087] Figure 7 A schematic structural diagram of the information acquisition apparatus according to an embodiment of the present application. Detailed implementation manners

[0088] To make the technical problems, technical solutions and advantages to be solved by the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0089] In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present application. Therefore, those skilled in the art should clearly understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Additionally, descriptions of known functions and structures are omitted for clarity and conciseness.

[0090] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0091] In various embodiments of the present application, it should be understood that the magnitudes of the sequence numbers of the following processes do not imply the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0092] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0093] In the embodiments of the present application, the term "plurality" refers to two or more, and other quantifiers are similar.

[0094] In the existing terrestrial communication network, the terrestrial base station sends neighbor cell information to the user equipment by broadcasting system messages. In this way, in the satellite communication network, the satellite base station will also send neighbor cell information to the user equipment by broadcasting system messages. However, in scenarios such as handover and reselection from the satellite communication network to the terrestrial communication network, since the coverage area of a satellite beam is very large and may contain many terrestrial base stations, and the system message can only broadcast a limited number of adjacent cells (usually 16), after the user equipment accessing the satellite base station receives the neighbor cell information sent by the satellite base station, it will continuously initiate the measurement process to select a better neighbor cell. However, the distance between the user equipment and the neighbor cell to be measured may be very far, which will cause the user equipment to perform a large number of ineffective measurements and consume the power of the user equipment.

[0095] To solve the defects existing in the prior art, the embodiments of the present application provide an information acquisition method, device, terminal, and storage medium. By using the location information of the user equipment, a candidate terrestrial base station information list is sent to the user equipment, enabling the user equipment to independently initiate operations such as measurement and reselection according to the location or coverage area of the terrestrial base station, effectively improving the effectiveness and accuracy of handling mobility problems such as handover and reselection from the NTN network to the TN network, and saving the power consumption of the user equipment.

[0096] As Figure 1 shown, the embodiments of the present application provide a flowchart of an information acquisition method. This information acquisition method is mainly applied to a terminal and specifically includes the following steps:

[0097] Step 101: The user equipment receives the system message sent by the satellite base station, and the system message contains first indication information for indicating whether there is a terrestrial base station.

[0098] In an embodiment of the present application, a user equipment accessing a satellite base station receives system messages sent by the satellite base station. In addition to carrying general content (for example, content included in system messages specified in the 3GPP protocol) in the broadcast system messages, the satellite base station will also carry first indication information for indicating whether there is a terrestrial base station. For example: When there is a terrestrial base station within the current coverage area of the satellite base station, the first indication information indicating the existence of the terrestrial base station is carried in the system messages broadcast by the satellite base station; when there is no terrestrial base station within the current coverage area of the satellite base station, the first indication information indicating the non-existence of the terrestrial base station is carried in the system messages broadcast by the satellite base station.

[0099] In another embodiment of the present application, if the user equipment receives the system message in the RRC idle state or the RRC inactive state, after receiving the system message, if the user equipment determines that the first indication information carried in the system message indicates the existence of a terrestrial base station, the user equipment sends an RRC connection establishment request to the satellite base station and receives an RRC connection establishment response sent by the satellite base station, and the user equipment realizes the conversion from the RRC idle state to the RRC connected state. After the RRC connection establishment is completed, the satellite base station sends an Initial UE Message (i.e., the initial UE message) to the core network device and receives an Initial Context Setup Request (i.e., the initial context establishment request) sent by the core network device to complete the NG connection between the satellite base station and the core network device. Then, a security mechanism is established among the user equipment, the satellite base station, and the core network device to ensure the secure transmission of sensitive information (such as: the location information of the user equipment, the location information of the terrestrial base station, etc.) in subsequent transmissions.

[0100] Step 103: The user equipment sends the location information of the user equipment to the satellite base station based on the first indication information.

[0101] In an embodiment of the present application, after receiving the system message, the user equipment may send the location information of the user equipment to the satellite base station according to the first indication information indicating the existence of a terrestrial base station carried in the system message.

[0102] Alternatively, after receiving the system message, the user equipment may send the location information of the user equipment to the satellite base station at an appropriate moment.

[0103] Alternatively, after receiving the system message, the user equipment may send a query request to the satellite base station at an appropriate moment, and the purpose of the query request is to query the terrestrial base stations available to the user equipment.

[0104] In another embodiment of the present application, the user equipment sends the location information of the user equipment to the satellite base station through a registration request message / handover request message; or,

[0105] The user equipment sends a measurement report / user information response message / base station query request message to the satellite base station, and the location information of the user equipment is carried in the measurement report / the user information response message / the base station query request message.

[0106] In another embodiment of the present application, the user equipment establishes a communication connection with the satellite base station through a registration request message / handover request message, negotiates a security mechanism with the satellite base station after the communication connection is established, and then, according to the security mechanism, the user equipment sends a measurement report / user information response message / base station query request message to the satellite base station, and the location information of the user equipment is carried in the measurement report / the user information response message / the base station query request message.

[0107] In another embodiment of the present application, when the user equipment sends location information to the satellite base station, the location information is encrypted according to the security mechanism established with the satellite base station to ensure the security of the location information transmission.

[0108] Step 105: The user equipment receives the candidate terrestrial base station information list sent by the satellite base station, where the distance between the terrestrial base stations included in the candidate terrestrial base station information list and the user equipment meets the set conditions.

[0109] In the embodiment of the present application, the candidate terrestrial base station information list includes the location information of each terrestrial base station or the signal coverage range of each terrestrial base station.

[0110] In another embodiment of the present application, the candidate terrestrial base station information list further includes information such as the PCI (Physical Cell Identifier) and frequency point of each terrestrial base station.

[0111] It should be noted that the set conditions recorded in the embodiment of the present application can be a distance threshold (which can be set to infinity, and in this case, all terrestrial base stations are candidate base stations), or other conditions (for example: the number of terrestrial base stations). The specific content of the set conditions is not limited here.

[0112] It should be noted that the terrestrial base stations included in the candidate terrestrial base station information list can be sorted according to the distance from the user equipment, and the terrestrial base stations closer to the user equipment are preferentially selected. If the set condition is the number of terrestrial base stations, then the terrestrial base stations that meet the number will be selected in the order from near to far as the terrestrial base stations in the candidate terrestrial base station information list.

[0113] In another embodiment of the present application, the method further includes:

[0114] When the user equipment determines that the distance to the first terrestrial base station included in the candidate terrestrial base station information list reaches a set threshold, or determines that its location is within the signal coverage range of the first base station, the user equipment performs one or more operations including measurement, handover, cell reselection, and mobility management on the first terrestrial base station.

[0115] In another embodiment of the present application, after receiving the candidate terrestrial base station information list, the user equipment can, according to its own wireless positioning ability, judge the distance between the user equipment and the terrestrial base stations included in the candidate terrestrial base station information list, or judge whether the current location of the user equipment is within the coverage range of a certain terrestrial base station. According to the judgment result, processes such as measurement, handover, and mobility management are started in a timely manner.

[0116] In another embodiment of the present application, the method further includes:

[0117] The user equipment stores the candidate base station information list.

[0118] In another embodiment of the present application, the method further includes:

[0119] After receiving the candidate terrestrial base station information list sent by the satellite base station, the user equipment decrypts the candidate terrestrial base station information list according to the security mechanism established with the satellite base station to obtain the relevant information of the encrypted terrestrial base station.

[0120] Through the information acquisition method provided by the embodiments of the present application, the satellite base station carries first indication information for indicating whether there is a terrestrial base station in the system message sent to the user equipment. Once the user equipment receives the indication information indicating the existence of a terrestrial base station in the system message sent by the satellite base station, the user equipment sends the location information of the user equipment to the satellite base station. Furthermore, the user equipment can obtain a candidate terrestrial base station information list from the satellite base station, and the distance between the terrestrial base stations included in the candidate terrestrial base station information list and the user equipment meets the set conditions. In this way, the user equipment will be able to obtain the information of the terrestrial base station in a timely manner. When dealing with mobility issues such as handover and reselection from the satellite base station to the terrestrial base station, the user equipment can select a suitable terrestrial base station based on the information in these candidate terrestrial base station information lists and perform effective measurements, which can not only save the terminal energy consumption but also improve the effectiveness of the terminal mobility.

[0121] As Figure 2 shown, it is a schematic flowchart of an information acquisition method provided by the embodiments of the present application. Applied to a satellite base station, the specific content includes:

[0122] Step 201: The satellite base station receives the location information of the user equipment sent by the user equipment.

[0123] In the embodiment of the present application, the satellite base station receives a registration request message / handover request message / base station query request message sent by the user equipment, where the location information of the user equipment is carried in the registration request message / the handover request message / the base station query request message. Or,

[0124] The satellite base station receives a measurement report / user information response message sent by the user equipment, where the location information of the user equipment is carried in the measurement report / the user information response message.

[0125] Step 203: The satellite base station obtains the ground base station information whose distance from the user equipment meets the set conditions according to the location information of the user equipment.

[0126] In the embodiment of the present application, after the satellite base station completes the initial context establishment with the core network device, according to the location information of the user equipment, the satellite base station sends a query request message to the core network device, and the location information of the user equipment is carried in the query request message; the satellite base station receives the query response message sent by the core network device, and the relevant information of the ground base station whose distance from the user equipment meets the set conditions is included in the query response message.

[0127] Wherein, the relevant information includes the location information of each ground base station or the coverage range of each ground base station.

[0128] In another embodiment of the present application, the core network device described in the embodiment of the present application can be independently deployed for the satellite network or jointly deployed for the satellite network and the ground network. The deployment method is not limited here.

[0129] In another embodiment of the present application, after receiving the query request message, the core network device determines the relevant information of the ground base station whose distance from the user equipment meets the set conditions according to the location information of the user equipment, and carries the determined relevant information in the query response message and sends it to the satellite base station.

[0130] In another embodiment of the present application, the core network device can send the determined relevant information to the satellite base station through a NAS message.

[0131] Step 205: The satellite base station sends a list of candidate ground base stations to the user equipment according to the ground base station information.

[0132] In an embodiment of the present application, after receiving a query response message sent by a core network device, a satellite base station may send a candidate terrestrial base station list to the user equipment through an RRC message or in a transparent transmission manner. The candidate terrestrial base station list contains the location information of each terrestrial base station or the coverage range of each terrestrial base station.

[0133] It should be noted that if the satellite base station receives a NAS message sent by the core network device, the satellite base station will not process it and directly forward the received NAS message to the user equipment in a transparent transmission manner. The candidate terrestrial base station list is carried in the NAS message.

[0134] In an embodiment of the present application, the satellite base station carries first indication information for indicating whether there is a terrestrial base station in the system message sent to the user equipment. Once the user equipment receives the indication information indicating the existence of a terrestrial base station in the system message sent by the satellite base station, the user equipment sends the location information of the user equipment to the satellite base station. Furthermore, the user equipment can obtain a candidate terrestrial base station information list from the satellite base station. The distance between the terrestrial base stations included in the candidate terrestrial base station information list and the user equipment meets a set condition. In this way, the user equipment will be able to obtain the information of the terrestrial base station in a timely manner. When dealing with mobility issues such as handover and reselection from the satellite base station to the terrestrial base station, the user equipment can select a suitable terrestrial base station based on the information in these candidate terrestrial base station information lists and perform effective measurements, which can not only save the terminal energy consumption but also improve the effectiveness of the terminal mobility.

[0135] As Figure 3 shown, it is a schematic diagram of the information acquisition method provided by an embodiment of the present application. The devices involved in the information acquisition method provided by an embodiment of the present application include but are not limited to: user equipment, satellite base station, core network device, and terrestrial base station. The specific content includes:

[0136] Step 301: The satellite base station broadcasts a system message (for example: SIB1) containing first indication information for indicating the existence of a terrestrial base station.

[0137] Step 303: The user equipment accessing the satellite base station receives the broadcast system message.

[0138] Step 305: The user equipment sends geographical location information to the satellite device.

[0139] Step 307: The satellite base station sends a query request message to the core network device, and the user equipment's geographical location information is carried in the query request message.

[0140] Step 309: The satellite base station receives a query response message sent by the core network device, where the query response message contains relevant information of a terrestrial base station whose distance from the user equipment meets a set condition.

[0141] Step 311: The satellite base station sends a list of candidate terrestrial base stations to the user equipment, where the list of candidate terrestrial base stations contains the location information of each terrestrial base station or the coverage area of each terrestrial base station.

[0142] Step 313: The user equipment stores the list of candidate terrestrial base stations.

[0143] When the user equipment needs to perform mobility management, it initiates processes such as measurement and handover of terrestrial base stations according to the relevant information of the terrestrial base stations included in the stored candidate terrestrial base station list information.

[0144] The above embodiments introduce the connection recovery processing method of the present application. Next, this embodiment will further describe the corresponding device with reference to the accompanying drawings. Among them, the method and the device are based on the same inventive concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repeated parts will not be described again.

[0145] As Figure 4 shown, it is a schematic structural diagram of an information acquisition device provided by an embodiment of the present application. Applied to a terminal, it includes: a memory 401, a transceiver 402, and a processor 403; among them, the memory 401 is used to store a computer program; the transceiver 402 is used to receive and send data under the control of the processor; the processor 403 is used to read the computer program in the memory and perform the following operations:

[0146] Receive a system message sent by the satellite base station, where the system message contains first indication information for indicating whether there is a terrestrial base station;

[0147] Based on the first indication information, send the location information of the user equipment to the satellite base station;

[0148] Receive the list of candidate terrestrial base station information sent by the satellite base station, where the terrestrial base stations included in the list of candidate terrestrial base station information have a distance from the user equipment that meets a set condition.

[0149] In an embodiment of the present application, the list of candidate terrestrial base station information contains the location information of each terrestrial base station or the signal coverage area of each terrestrial base station;

[0150] The processor 403 is further used to read the computer program in the memory and perform the following operations:

[0151] When it is determined that the distance to the first ground base station included in the candidate ground base station information list reaches a set threshold, or when it is determined that the location is within the signal coverage range of the first base station, one or more operations including measurement, handover, cell reselection, and mobility management are performed on the first ground base station.

[0152] In an embodiment of the present application, the processor 403 is further configured to read the computer program in the memory and perform the following operations:

[0153] Store the candidate base station information list.

[0154] In an embodiment of the present application, the processor 403 is further configured to read the computer program in the memory and perform the following operations: Send the location information of the user equipment to the satellite base station, including:

[0155] According to the first indication information indicating the existence of a ground base station carried in the system message, send the location information of the user equipment to the satellite base station.

[0156] In an embodiment of the present application, the processor 403 is further configured to read the computer program in the memory and perform the following operations: Send the location information of the user equipment to the satellite base station, including:

[0157] Send the location information of the user equipment to the satellite base station through a registration request message / handover request message; or,

[0158] Send a measurement report / user information response message / base station query request message to the satellite base station, where the measurement report / the user information response message / the base station query request message carries the location information of the user equipment.

[0159] Through the information acquisition device provided by the embodiment of the present application, the satellite base station carries the first indication information for indicating whether there is a ground base station in the system message sent to the user equipment. Once the user equipment receives the indication information indicating the existence of a ground base station in the system message sent by the satellite base station, the user equipment sends the location information of the user equipment to the satellite base station. Furthermore, the user equipment can obtain the candidate ground base station information list from the satellite base station, and the distance between the ground base stations included in the candidate ground base station information list and the user equipment meets the set conditions. In this way, the user equipment will be able to obtain the information of the ground base station in a timely manner. When dealing with mobility issues such as handover and reselection from the satellite base station to the ground base station, it can select a suitable ground base station based on the information in these candidate ground base station information lists and perform effective measurements, which can not only save the terminal energy consumption but also improve the effectiveness of the terminal mobility.

[0160] As Figure 5 shown, the present application provides a schematic structural diagram of an information acquisition device. Applied to a satellite base station, it includes: a memory 501, a transceiver 502, and a processor 503; wherein, the memory 501 is used to store computer programs; the transceiver 502 is used to receive and send data under the control of the processor; the processor 503 is used to read the computer programs in the memory and perform the following operations:

[0161] Receive the location information of the user equipment sent by the user equipment;

[0162] According to the location information of the user equipment, obtain ground base station information whose distance from the user equipment meets the set conditions;

[0163] According to the ground base station information, send a candidate ground base station list to the user equipment.

[0164] In an embodiment of the present application, the processor 503 is used to read the computer programs in the memory and perform the following operations: According to the location information of the user equipment, obtaining ground base station information whose distance from the user equipment meets the set conditions includes:

[0165] Send a query request message to the core network device, and the query request message carries the location information of the user equipment;

[0166] Receive the query response message sent by the core network device, and the query response message contains the relevant information of the ground base station whose distance from the user equipment meets the set conditions;

[0167] Wherein, the relevant information includes the location information of each ground base station or the coverage range of each ground base station.

[0168] In an embodiment of the present application, the processor 503 is used to read the computer programs in the memory and perform the following operations: Sending a candidate ground base station list to the user equipment includes:

[0169] Send the candidate ground base station list to the user equipment through an RRC message / in a transparent transmission manner, and the candidate ground base station list contains the location information of each ground base station or the coverage range of each ground base station.

[0170] Through the information acquisition device provided by the embodiments of the present application, the satellite base station carries first indication information for indicating whether there is a terrestrial base station in the system message sent to the user equipment. Once the user equipment receives the indication information indicating the existence of a terrestrial base station in the system message sent by the satellite base station, the user equipment sends the location information of the user equipment to the satellite base station. Furthermore, the user equipment can obtain a candidate terrestrial base station information list from the satellite base station, and the distance between the terrestrial base stations included in the candidate terrestrial base station information list and the user equipment meets the set conditions. In this way, the user equipment will be able to obtain the information of the terrestrial base station in a timely manner. When dealing with mobility issues such as handover and reselection from the satellite base station to the terrestrial base station, it can select a suitable terrestrial base station based on the information in these candidate terrestrial base station information lists and perform effective measurements, which can not only save the terminal energy consumption but also improve the effectiveness of the terminal mobility.

[0171] It should be noted here that the above-mentioned device provided by the embodiments of the present application can implement all the method steps implemented by the method embodiments applied to the network-side device, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0172] It should be noted that the division of units in the embodiments of the present application is illustrative, only a logical function division, and there may be other division methods in actual implementation. In addition, the functional units in each embodiment of the present application can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0173] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks and other various media that can store program codes.

[0174] Among them, in Figure 4 orFigure 5 Among them, the bus architecture may include any number of interconnected buses and bridges, which are specifically linked together by various circuits of one or more processors represented by the processor and the memory represented by the memory. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and thus will not be further described herein. The bus interface provides an interface. The transceiver can be multiple components, that is, including a transmitter and a transceiver, and provides a unit for communicating with various other devices on the transmission medium. For different user devices, the user interface can also be an interface capable of externally connecting and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0175] The processor is responsible for managing the bus architecture and general processing, and the memory can store the data used by the processor when executing operations.

[0176] Optionally, the processor can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0177] The processor is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and the memory can also be physically separated.

[0178] It should be noted here that the above device provided in the embodiments of the present application can implement all the method steps implemented by the method embodiments applied to the terminal, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0179] Based on the same inventive concept, as Figure 6 shown, it is a schematic structural diagram of an information acquisition device provided in the embodiments of the present application. The information acquisition device includes: a receiving unit 601 and a transmitting unit 602, where,

[0180] The receiving unit 601 is configured to receive a system message sent by a satellite base station, and the system message includes first indication information for indicating whether there is a ground base station;

[0181] A sending unit 602, configured to send the location information of the user equipment to the satellite base station based on the first indication information;

[0182] The receiving unit 601 is further configured to receive a list of candidate terrestrial base station information sent by the satellite base station, where the distance between the terrestrial base stations included in the list of candidate terrestrial base station information and the user equipment meets a set condition.

[0183] In an embodiment of the present application, the list of candidate terrestrial base station information includes the location information of each terrestrial base station or the signal coverage range of each terrestrial base station.

[0184] In an embodiment of the present application, the information acquisition device further includes: a processing unit 603, where the processing unit 603 is configured to perform one or more operations including measurement, handover, cell reselection, and mobility management on the first terrestrial base station when it is determined that the distance to the first terrestrial base station included in the list of candidate terrestrial base station information reaches a set threshold or it is determined that the location is within the signal coverage range of the first base station.

[0185] In an embodiment of the present application, the information acquisition device further includes: a storage unit 604, where the storage unit 604 is configured to store the list of candidate base station information.

[0186] In an embodiment of the present application, the sending unit 602 sending the location information of the user equipment to the satellite base station includes:

[0187] Sending the location information of the user equipment to the satellite base station according to the first indication information indicating the existence of a terrestrial base station carried in the system message.

[0188] In an embodiment of the present application, the sending unit 602 sending the location information of the user equipment to the satellite base station includes:

[0189] Sending the location information of the user equipment to the satellite base station through a registration request message / handover request message; or,

[0190] Sending a measurement report / user information response message / base station query request message to the satellite base station, where the measurement report / the user information response message / the base station query request message carries the location information of the user equipment.

[0191] As Figure 7 shown, it is a schematic structural diagram of an information acquisition device provided by an embodiment of the present application. The information acquisition device includes: a receiving unit 701, an acquisition unit 702, and a sending unit 703, where:

[0192] A receiving unit 701, configured to receive the location information of the user equipment sent by the user equipment;

[0193] An obtaining unit 702, configured to obtain ground base station information whose distance from the user equipment meets a set condition according to the location information of the user equipment;

[0194] A sending unit 703, configured to send a candidate ground base station list to the user equipment according to the ground base station information.

[0195] In an embodiment of the present application, the obtaining unit 702 obtaining ground base station information whose distance from the user equipment meets a set condition according to the location information of the user equipment includes:

[0196] Sending a query request message to the core network device, where the query request message carries the location information of the user equipment;

[0197] Receiving a query response message sent by the core network device, where the query response message contains relevant information of a ground base station whose distance from the user equipment meets a set condition;

[0198] Wherein, the relevant information includes the location information of each ground base station or the coverage range of each ground base station.

[0199] In an embodiment of the present application, the obtaining unit 702 sending a candidate ground base station list to the user equipment includes:

[0200] Sending a candidate ground base station list to the user equipment through an RRC message / in a transparent transmission manner, where the candidate ground base station list contains the location information of each ground base station or the coverage range of each ground base station.

[0201] Through the information acquisition device provided by the embodiment of the present application, the satellite base station carries first indication information for indicating whether there is a ground base station in the system message sent to the user equipment. Once the user equipment receives the indication information indicating the existence of a ground base station in the system message sent by the satellite base station, the user equipment sends the location information of the user equipment to the satellite base station. Furthermore, the user equipment can obtain a candidate ground base station information list from the satellite base station, and the ground base stations included in the candidate ground base station information list have a distance from the user equipment that meets a set condition. In this way, the user equipment will be able to obtain the information of the ground base station in a timely manner. When it is necessary to handle mobility issues such as handover and reselection from the satellite base station to the ground base station, an appropriate ground base station can be selected based on the information in these candidate ground base station information lists and effective measurements can be performed, which can not only save the terminal energy consumption but also improve the effectiveness of the terminal mobility.

[0202] It should be noted here that the above device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments applied to network-side devices, and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0203] In addition, a specific embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, it implements the steps of the above information acquisition method and can achieve the same technical effects. To avoid repetition, it will not be elaborated here. The readable storage medium may be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical discs (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memories (NAND FLASH), solid-state drives (SSD)).

[0204] It should be noted that the technical solutions provided in the embodiments of this application can be applied to multiple systems, especially 5G systems. For example, the applicable systems can be the global system of mobile communication (GSM) system, code division multiple access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (NR) system, etc. Both terminal devices and network devices are included in these multiple systems. The system may also include a core network part, such as the Evolved Packet System (EPS), 5G System (5GS), etc.

[0205] The terminal device involved in the embodiments of the present application can be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device can be called a User Equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) via a Radio Access Network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges language and / or data with the wireless access network. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA), etc. The wireless terminal device can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, which is not limited in the embodiments of the present application.

[0206] The network device involved in the embodiments of this application can be a base station, which can include multiple cells that provide services to terminals. Depending on the specific application scenarios, the base station can also be referred to as an access point, or it can be a device in the access network that communicates with wireless terminal devices through one or more sectors over the air interface, or other names. The network device can be used to mutually replace the received airframes and Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of this application can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or it can be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can also be an evolved network device (evolutional Node B, eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or it can be a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of this application do not limit this. In some network architectures, the network device can include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit can also be geographically separated.

[0207] The network-side device and the terminal device can each use one or more antennas for multi-input multi-output (MIMO) transmission. The MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). According to the form and quantity of the root antenna combination, the MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission, beamforming transmission, etc.

[0208] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0209] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in one or more processes in the flowchart and / or one or more blocks in the block diagram.

[0210] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the processor-readable memory generate a manufactured product including an instruction device, and the instruction device implements the functions specified in one or more processes in the flowchart and / or one or more blocks in the block diagram.

[0211] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Therefore, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more blocks in the block diagram.

[0212] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to cover these changes and modifications.

Claims

1. An information acquisition method, characterized in that, including: The user equipment receives a system message sent by a satellite base station, and the system message contains first indication information for indicating whether there is a terrestrial base station; The user equipment sends the location information of the user equipment to the satellite base station based on the first indication information; The user equipment receives a list of candidate terrestrial base station information sent by the satellite base station, where the distance between the terrestrial base stations included in the list of candidate terrestrial base station information and the user equipment meets a set condition.

2. The acquisition method according to claim 1, wherein The list of candidate terrestrial base station information includes the location information of each terrestrial base station or the signal coverage range of each terrestrial base station; The method further includes: When the user equipment determines that the distance to a first terrestrial base station included in the list of candidate terrestrial base station information reaches a set threshold or determines that its location is within the signal coverage range of the first base station, the user equipment performs one or more operations including measurement, handover, cell reselection, and mobility management on the first terrestrial base station.

3. The acquisition method according to claim 1 or 2, characterized in that, The method further includes: The user equipment stores the list of candidate base station information.

4. The acquisition method according to claim 1, characterized in that The user equipment sending the location information of the user equipment to the satellite base station includes: The user equipment sends the location information of the user equipment to the satellite base station through a registration request message / handover request message; or The user equipment sends a measurement report / user information response message / base station query request message to the satellite base station, and the location information of the user equipment is carried in the measurement report / user information response message / base station query request message.

5. An information acquisition method, characterized in that, including: The satellite base station receives the location information of the user equipment sent by the user equipment; The satellite base station obtains terrestrial base station information whose distance from the user equipment meets a set condition according to the location information of the user equipment; The satellite base station sends a list of candidate terrestrial base stations to the user equipment according to the terrestrial base station information.

6. The acquisition method according to claim 5, characterized in that The satellite base station obtaining terrestrial base station information whose distance from the user equipment meets a set condition according to the location information of the user equipment includes: The satellite base station sends a query request message to the core network device, and the location information of the user equipment is carried in the query request message; The satellite base station receives a query response message sent by the core network device, and the query response message contains relevant information of terrestrial base stations whose distance from the user equipment meets a set condition; wherein the relevant information includes the location information of each terrestrial base station or the coverage range of each terrestrial base station.

7. The acquisition method according to claim 5, characterized in that The satellite base station sending a list of candidate terrestrial base stations to the user equipment includes: The satellite base station sends a list of candidate terrestrial base stations to the user equipment through an RRC message / in a transparent transmission manner, and the list of candidate terrestrial base stations includes the location information of each terrestrial base station or the coverage range of each terrestrial base station.

8. An information acquisition device, characterized in that, The processing device is applied to a user equipment and includes: a memory, a transceiver, and a processor; wherein, the memory is used for storing a computer program; the transceiver is used for receiving and sending data under the control of the processor; the processor is used for reading the computer program in the memory and performing the following operations: Receiving a system message sent by a satellite base station, where the system message includes first indication information for indicating whether there is a terrestrial base station; Based on the first indication information, sending the location information of the user equipment to the satellite base station; Receiving a candidate terrestrial base station information list sent by the satellite base station, where the distance between the terrestrial base stations included in the candidate terrestrial base station information list and the user equipment meets a set condition.

9. The acquisition device according to claim 8, characterized in that, The candidate terrestrial base station information list includes the location information of each terrestrial base station or the signal coverage range of each terrestrial base station; The processor is further used for reading the computer program in the memory and performing the following operations: When determining that the distance to a first terrestrial base station included in the candidate terrestrial base station information list reaches a set threshold, or determining that the location is within the signal coverage range of the first base station, performing one or more operations including measurement, handover, cell reselection, and mobility management on the first terrestrial base station.

10. The acquisition device according to claim 8 or 9, characterized in that, The processor is further used for reading the computer program in the memory and performing the following operations: Storing the candidate base station information list.

11. The acquisition device according to claim 8, characterized in that, The processor is further used for reading the computer program in the memory and performing the following operations: sending the location information of the user equipment to the satellite base station, including: Sending the location information of the user equipment to the satellite base station through a registration request message / handover request message / base station query request message; or, Sending a measurement report / user information response message / base station query request message to the satellite base station, where the measurement report / the user information response message / the base station query request message carries the location information of the user equipment.

12. An information acquisition device, characterized in that, The processing device is applied to a satellite base station and includes: a memory, a transceiver, and a processor; wherein, the memory is used for storing a computer program; the transceiver is used for receiving and sending data under the control of the processor; the processor is used for reading the computer program in the memory and performing the following operations: Receiving the location information of the user equipment sent by the user equipment; According to the location information of the user equipment, obtaining terrestrial base station information whose distance from the user equipment meets a set condition; According to the terrestrial base station information, sending a candidate terrestrial base station list to the user equipment.

13. The acquisition device according to claim 12, characterized in that, The processor is used for reading the computer program in the memory and performing the following operations: according to the location information of the user equipment, obtaining terrestrial base station information whose distance from the user equipment meets a set condition, including: Sending a query request message to a core network device, where the query request message carries the location information of the user equipment; Receive the query response message sent by the core network device, where the query response message contains the relevant information of the terrestrial base stations whose distances from the user equipment meet the set conditions; Wherein, the relevant information includes the location information of each terrestrial base station or the coverage area of each terrestrial base station.

14. The acquisition device according to claim 12, characterized in that, The processor is configured to read the computer program in the memory and perform the following operations: send a list of candidate terrestrial base stations to the user equipment, including: Send the list of candidate terrestrial base stations to the user equipment through an RRC message / through transparent transmission, where the list of candidate terrestrial base stations contains the location information of each terrestrial base station or the coverage area of each terrestrial base station.

15. An information acquisition device, characterized in that, The information acquisition device includes: A receiving unit, configured to receive the system message sent by the satellite base station, where the system message contains the first indication information for indicating whether there is a terrestrial base station; A sending unit, configured to send the location information of the user equipment to the satellite base station based on the first indication information; The receiving unit is further configured to receive the list of candidate terrestrial base station information sent by the satellite base station, where the distances between the terrestrial base stations included in the list of candidate terrestrial base station information and the user equipment meet the set conditions.

16. An information acquisition device, characterized in that, The information acquisition device includes: A receiving unit, configured to receive the location information of the user equipment sent by the user equipment; An acquisition unit, configured to acquire the terrestrial base station information whose distance from the user equipment meets the set conditions according to the location information of the user equipment; A sending unit, configured to send a list of candidate terrestrial base stations to the user equipment according to the terrestrial base station information.

17. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the information acquisition method according to any one of claims 1 to 7.

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