Cell handover methods, cell controllers, electronic devices and storage media

Abstract

This invention relates to the field of communication technology, and particularly to a cell handover method, a cell controller, an electronic device, and a storage medium. In the cell handover method described above, the source cell controller is connected to the terminal station via satellite, to the target cell controller via a terrestrial circuit communication interface, and to the master station. The cell handover method includes: if the master station receives an instruction from the terminal station to handover to the target cell, it sends a cell access request to the target cell controller; it receives a target cell resource allocation message from the target cell controller in response to the cell access request via the terrestrial circuit communication interface; and it sends the target cell resource allocation message to the terminal station via satellite, so that the terminal station can handover to the target cell according to the target cell resource allocation message. The cell handover method provided by this invention allows the terminal station's data services to be transmitted normally during the cell handover process, thereby significantly shortening service interruption time.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular to a cell handover method, a cell controller, and a storage medium. Background Technology

[0002] In communication satellite applications, spot beams, due to their more concentrated radiated energy, have a significantly higher gain than traditional global and regional beams. This is beneficial for substantially improving coverage levels in local areas, thereby significantly enhancing the system's communication capacity and anti-interference performance in those areas. Therefore, spot beams are widely used in modern mobile and military communication satellites; for example, Ka-band geostationary communication satellites utilize spot beam technology. (See reference...) Figure 1 As shown, Figure 1 The four physical frequency bands f1, f2, f3, and f4 are reused / multiplexed, and adjacent spot beams operate at different frequencies. Figure 1 One of the point beams is a carrier sector for wireless communication, which is to cellularize the satellite network, thereby greatly improving the service capability of a satellite.

[0003] The coverage area of ​​a spot beam is smaller than that of traditional global beams and regional beams. When a satellite communication terminal moves between different carrier sectors, it needs to switch cells. During the switching process, the target cell and the terminal station need to interact multiple times through satellite signals. For example, the terminal station needs to send access probe messages and receive air interface configuration messages.

[0004] However, satellite communication terminals generally only have the ability to receive signals on a single channel. When switching cells, the transmission of service data needs to be interrupted in order to send and receive messages involved in the cell handover. In addition, the time delay of satellite signals means that the service interruption time during cell handover is also relatively long. Summary of the Invention

[0005] The main objective of this application is to provide a cell handover method, cell controller, electronic device, and computer-readable storage medium that can significantly shorten service terminal time during cell handover.

[0006] To achieve the above objectives, this application provides a cell handover method applied to a source cell controller. The source cell controller is connected to a terminal station via satellite, to a target cell controller via a terrestrial circuit communication interface, and to a master station. The cell handover method includes: if the master station receives an instruction from the terminal station to handover to the target cell, sending a cell access request to the target cell controller; receiving a target cell resource allocation message from the target cell controller based on the cell access request via the terrestrial circuit communication interface; and sending the target cell resource allocation message to the terminal station via satellite, so that the terminal station can handover to the target cell according to the target cell resource allocation message.

[0007] To achieve the above objectives, this application also provides a cell controller applied to a target cell controller. The target cell controller is communicatively connected to the source cell controller via a terrestrial circuit communication interface. The source cell controller is communicatively connected to the terminal station via satellite. The cell handover method includes: if a cell access request is received from the cell controller, allocating target cell resources to the terminal station according to the cell access request and generating a target cell resource allocation message; and sending the target cell resource allocation message to the source cell controller via the terrestrial circuit communication interface, so that the source cell controller can transmit the target cell resource allocation message to the terminal station.

[0008] To achieve the above objectives, this application also provides a cell controller, which serves as a source cell controller. The source cell controller is connected to a terminal station via satellite, to a target cell controller via a terrestrial circuit communication interface, and to a master station. The cell controller includes: an instruction receiving module, configured to send a cell access request to the target cell controller if it receives an instruction from the master station that the terminal station is to switch to the target cell; a message receiving module, configured to receive a target cell resource allocation message from the target cell controller in response to the cell access request via the terrestrial circuit communication interface; and a message sending module, configured to send the target cell resource allocation message to the terminal station via the satellite, so that the terminal station can switch to the target cell according to the target cell resource allocation message.

[0009] To achieve the above objectives, this application also provides a cell controller, which serves as a target cell controller. The target cell controller is communicatively connected to the source cell controller via a terrestrial circuit communication interface. The source cell controller is communicatively connected to the terminal station via satellite. The cell controller includes: a message generation module, configured to allocate target cell resources to the terminal station according to the cell access request sent by the cell controller, and generate a target cell resource allocation message; and a message transmission module, configured to send the target cell resource allocation message to the source cell controller via the terrestrial circuit communication interface, so that the source cell controller can transmit the target cell resource allocation message to the terminal station.

[0010] To achieve the above objectives, embodiments of this application also provide an electronic device, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the above-described cell handover method.

[0011] To achieve the above objectives, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the above-described cell handover method.

[0012] Compared to the traditional method of cell handover between the terminal station and the target cell controller via satellite signals, this invention establishes a communication connection between the source cell controller and the target cell controller via a switching port. This transforms the communication of messages that would otherwise require satellite over-the-air transmission during cell handover into transmission via terrestrial communication lines, i.e., transmission through the target cell controller and the source cell controller. This reduces the need for the terminal station to perform cell handover via satellite over-the-air, thus avoiding the use of the terminal station's single-channel signal reception resources. As a result, the terminal station can still transmit data services through the source cell during cell handover, ensuring normal data transmission during this process. This significantly shortens service interruption time and improves the user experience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of cellular spot-beam satellite networks in related technologies;

[0014] Figure 2 This is a schematic diagram of the connections of various devices in a cell handover method according to an embodiment of the present invention;

[0015] Figure 3 This is a flowchart of a cell handover method applied to a source cell controller according to an embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the location of the terminal station according to an embodiment of the present invention;

[0017] Figure 5 This is a flowchart of a cell handover method applied to a target cell controller according to an embodiment of the present invention;

[0018] Figure 6 This is a flowchart illustrating the interaction between devices in a cell handover method according to an embodiment of the present invention;

[0019] Figure 7 This is a schematic diagram of a cell controller as a source cell controller provided according to an embodiment of the present invention;

[0020] Figure 8 This is a schematic diagram of a cell controller serving as a target cell controller according to an embodiment of the present invention;

[0021] Figure 9 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this application to help readers better understand this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various changes and modifications based on the following embodiments. The division of the various embodiments below is for the convenience of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0023] One embodiment of the present invention relates to a cell handover method applied to a source cell controller. The source cell controller is connected to a terminal station via satellite, to a target cell controller via a terrestrial circuit communication interface, and to a master station. The cell handover method includes: if the master station receives an instruction from the terminal station to handover to the target cell, sending a cell access request to the target cell controller; receiving a target cell resource allocation message from the target cell controller in response to the cell access request via the terrestrial circuit communication interface; and sending the target cell resource allocation message to the terminal station via satellite, so that the terminal station can handover to the target cell according to the target cell resource allocation message.

[0024] Compared to the traditional method of cell handover between the terminal station and the target cell controller via satellite signals, this invention connects the source cell controller and the target cell controller via a switching port. This transforms the communication of messages that would otherwise require satellite over-the-air transmission during cell handover into transmission via terrestrial communication lines, i.e., transmission through the target cell controller and the source cell controller. This reduces the need for the terminal station to perform cell handover via satellite over-the-air, thus avoiding the use of the terminal station's single-channel signal reception resources. As a result, the terminal station can still transmit data services through the source cell during cell handover, ensuring normal data service transmission during this process. This significantly shortens service interruption time and improves the user experience.

[0025] The following is a detailed description of the implementation details of the cell handover method in this embodiment. The following content is only for the convenience of understanding and is not necessary for implementing this solution.

[0026] Reference Figure 2 As shown, the source cell controller 203 is connected to the terminal station 201 via satellite 202, to the target cell controller 204 via a terrestrial circuit communication interface, and to the master station via a device on the Internet, such as an internet router 205. In this embodiment, the terminal station 201 can be a satellite communication terminal 201, which may have only one input signal receiving capability. The satellite communication terminal has a Global Positioning System (GPS) receiver.

[0027] In some embodiments, the terrestrial circuit communication interface can be used for signaling transmission between the source cell controller and the target cell controller, that is, to realize the terrestrial network communication connection between the source cell controller 203 and the target cell controller 204. For ease of description in this embodiment, the terrestrial circuit communication interface is simply referred to as the A1 interface, but in actual use, the terrestrial communication interface can use any name, and this embodiment does not limit it.

[0028] In this embodiment, the beam coverage is a satellite communication cell, or simply a cell. Different satellite communication cells are sent and received by different cell controllers. The signal frequencies of adjacent cells are different. The satellite communication terminal 201 generally has only one input signal receiving capability. At any given time, the satellite communication terminal 201 can only receive the satellite signal from the source cell. The cell controller can access the terrestrial network Internet through the network router 205. When the satellite communication terminal and the cell controller are connected through the communication satellite, the communication terminal can use network services.

[0029] The cell handover method in this embodiment can be described as follows: Figure 3As shown, it includes:

[0030] Step 301: If the master station receives an instruction from the terminal station to switch to the target cell, then send a cell access request to the target cell controller.

[0031] Specifically, the cell access request A1 AccessRequest message, in this embodiment, refers to the search and access signal process completed in the source cell via the service channel. For ease of understanding, in this embodiment, messages prefixed with "A1" indicate that the message is transmitted via the terrestrial circuit communication interface, i.e., via the terrestrial network.

[0032] In some embodiments, the source cell controller 203 receives a Global Positioning System (GPS) message sent by the terminal station 201 via the satellite 202; it then sends the GPS message to the master station, allowing the master station to detect whether the terminal station needs to switch cells based on the GPS message. Upon determining that the terminal station needs to switch cells, the master station sends an instruction to the source cell controller 203 instructing the terminal station 201 to switch to the target cell. The GPS message sent by the terminal station 201 to the cell controller via the satellite 202 can be referred to as a UmGPS message. The UmGPS message carries location information, such as latitude and longitude, and received signal strength information. For ease of understanding, in this embodiment, messages prefixed with "Um" indicate that the message is transmitted via satellite.

[0033] In some embodiments, the master station can detect whether the end station needs to switch cells by: if the signal strength represented by the received signal strength information is less than a preset threshold, it indicates that the end station needs to switch cells. Specifically, the source cell controller can send GPS messages to the master station via a terrestrial network. The master station can control multiple cells by receiving information from multiple cell controllers.

[0034] For example, such as Figure 4 As shown, the terminal station moves to Figure 4 At the black dot shown, the signal strength of the terminal station will be lower than a set threshold. When the master station receives a report from the terminal station that the signal strength is lower than the threshold, it determines that the terminal station should switch over.

[0035] Since the master station receives location and signal strength information reported by each terminal station, it can obtain the current location of the access terminal station and the cell receiving the service.

[0036] In some embodiments, the location of a terminal station can be determined based on the positioning information carried in the GPS message; a reference terminal station whose distance from the location of the terminal station meets a first preset condition can be obtained; if the signal strength of the reference terminal station is greater than the signal strength carried in the GPS message, and the cell to which the reference terminal station belongs is different from the cell to which the terminal station belongs, then the cell to which the reference terminal station belongs is determined to be the matching target cell. For example, the master station can take the current terminal station location as the center and a specific distance threshold as the radius. If a reference terminal station is within this area and is closest to the current terminal station, then the terminal station is a reference terminal station that meets the first preset condition. The cell to which the nearest reference terminal station is located and the last reported received signal strength of this nearest reference terminal station can be obtained. If the received signal strength of the nearest reference terminal station is greater than the received signal strength of the current terminal station and the cell to which the current terminal station belongs is different from the cell to which the nearest terminal station belongs, then the cell to which the nearest terminal station belongs is the matching target cell.

[0037] In some embodiments, if a reference station that meets the conditions cannot be found, the target cell is determined by the following method: Each neighboring cell of the station is determined based on the positioning information carried in the GPS message; if, among the neighboring cells, there exists a neighboring cell whose distance from the station meets a second preset condition, and the station is within the coverage area of ​​the neighboring cell meeting the second preset condition, then the neighboring cell meeting the second preset condition is determined as the target cell. For example, the master station can be configured with the center latitude and longitude information and service radius of each cell. The master station can compare the distance from the station to the center of each neighboring cell; the cell with the closest center latitude and longitude distance to the station is the cell meeting the second preset condition. The cell meeting the second preset condition and whose service radius is within an effective range is designated as the target cell. Here, "service radius within an effective range" indicates that the cell is within the coverage area of ​​the neighboring cell.

[0038] Step 102: Receive the target cell resource allocation message from the target cell controller in response to the cell access request via the terrestrial circuit communication interface. That is, this terrestrial communication interface enables the target cell controller and the source cell controller to interact via a terrestrial network.

[0039] In some embodiments, the target cell resource allocation message includes: the target cell overhead response message and the target cell access response message; wherein, the overhead response message includes: the target cell beam resource information; and the access response message includes: control resource information for controlling the terminal station.

[0040] Specifically, the overhead response message in the target cell resource allocation message based on the cell access request response received via signaling can be an A1OverheadResponse message, and the overhead response message in the target cell resource allocation message based on the cell access request response received via signaling can be an A1AccessResponse message. The A1OverheadResponse message can be a broadcast message from the target cell controller, carrying beam resource information for the target cell, including frequency and bandwidth resources. The A1AccessResponse can include control resource information for the control station, such as the control number assigned to the station, allocating satellite air interface resources to the station through the target cell resource allocation message, and facilitating control of the station by the cell controller.

[0041] Step 103: Send the target cell resource allocation message to the terminal station via satellite, so that the terminal station can switch to the target cell according to the target cell resource allocation message.

[0042] The overhead response message in the target cell resource allocation message sent from the satellite to the terminal station can be a UmTargetOverhead message, and the overhead response message in the same message can be a UmTargetAccessResponse message. The UmTargetOverhead message can be a broadcast message from the target cell controller, carrying beam resource information for the target cell, including frequency and bandwidth resources. The UmTargetAccessResponse can include control resource information for the terminal station, such as the control number assigned to the terminal station. It allocates satellite air interface resources to the terminal station through the target cell resource allocation message and facilitates control of the terminal station by the cell controller.

[0043] For example, the source cell controller receives the A1OverheadResponse and sends the UmTargetOverhead message to the end station via satellite. After receiving the A1AccessResponse, the source cell sends the UmTargetAccessResponse message to the air interface.

[0044] After the terminal station receives both the UmTargetOverhead and UmTargetAccessResponse messages, an air interface handover occurs, transferring the air interface to the target cell. After completing the cell handover, the terminal station sends a UmAccessComplete message to the target cell controller. Upon receiving the UmAccessComplete message, the target cell sends an A1HandoffComplete message to the source cell controller, ending the handover process. Upon receiving the cell handover message, the source cell controller releases the control resources used to control the terminal station, such as the control number assigned to the terminal station. This embodiment does not limit this specific resource allocation.

[0045] In this embodiment, the terminal station and the target cell controller only interact once via the satellite air interface to complete the handover process. Since the satellite communication air interface has a very large latency, when the terminal accesses a new cell, it needs to receive overhead, send access probes, receive configurations, and other air interface interaction processes. This embodiment tries to use terrestrial lines to transmit target cell information to the source cell, while the data services of the source cell can continue normally. This ensures that the service is not interrupted and avoids completing the cell access process through satellite air interface interaction, which significantly shortens the service interruption time and improves the user experience.

[0046] Another embodiment of the present invention relates to a cell handover method. Applied to target cell control, the target cell controller is communicatively connected to the source cell controller via a terrestrial circuit communication interface. The source cell controller is communicatively connected to an end station via satellite. The cell handover method includes: if a cell access request is received from the cell controller, allocating target cell resources to the end station according to the cell access request, generating a target cell resource allocation message; and sending the target cell resource allocation message to the source cell controller via the terrestrial circuit communication interface, so that the source cell controller can transmit the target cell resource allocation message to the end station.

[0047] In embodiments of the present invention, a communication connection is established between the source cell controller and the target cell controller via a switching port. This converts messages that would otherwise require satellite air interface transmission during cell handover into messages transmitted via terrestrial communication lines, i.e., through the target cell controller and the source cell controller. This reduces the need for end stations to perform cell handover via satellite air interface, thereby not occupying the resources of a single-channel signal reception at the end station. As a result, the end station can still transmit data services through the source cell during cell handover, ensuring that data services at the end station can be transmitted normally during this process. This significantly shortens service interruption time and improves the user experience.

[0048] The following is a detailed description of the implementation details of the cell handover method in this embodiment. The following content is only for the convenience of understanding and is not necessary for implementing this solution.

[0049] The connection diagram of each device in this embodiment can also be referred to. Figure 2 As shown.

[0050] Figure 5 This is a flowchart of the cell handover method described in this embodiment, applied to the target cell controller. The target cell controller is connected to the source cell controller via a terrestrial circuit communication interface, and the source cell controller is connected to the terminal station via satellite. The cell handover method in this embodiment includes:

[0051] Step 501: If a cell access request is received from the cell controller, target cell resources are allocated to the terminal station according to the cell access request, and a target cell resource allocation message is generated.

[0052] In some implementations, the target cell's overhead response message and the target cell's access response message are included; wherein, the overhead response message includes: beam resource information of the target cell; and the access response message includes: control resource information for controlling the terminal station.

[0053] Step 502: Send a target cell resource allocation message to the source cell controller through the ground circuit communication interface, so that the source cell controller can transmit the target cell resource allocation message to the terminal station.

[0054] In this embodiment, the ground circuit communication interface can be simply referred to as the A1 interface. However, in actual use, the ground communication interface can be used with any name, and this embodiment does not limit this.

[0055] In some embodiments, if a cell handover completion message is received from a terminal station via satellite, the terrestrial circuit communication interface resources are released. In this embodiment, resources are released promptly so that they can be used by other terminal stations in other cells.

[0056] The implementation details of the cell handover method applied to the source cell controller described above also apply to this embodiment. To avoid repetition, they will not be repeated here.

[0057] Please refer to Figure 6 The diagram shows the flowchart of the interaction between various devices during cell handover.

[0058] Step 601: The terminal station sends a GPS message to the source cell controller.

[0059] Specifically, a UmGPS message is sent. In this embodiment, all messages sent via satellite are prefixed with "Um".

[0060] Step 602: The source cell controller sends a GPS message to the master station.

[0061] Specifically, the source cell controller sends GPS messages to the master station via the terrestrial network.

[0062] Step 603: The master station detects whether the terminal station needs to switch cells based on the GPS message.

[0063] The implementation details of whether the detection station needs to switch cells in this embodiment are largely the same as the implementation details of the cell handover method applied to the source cell controller described above, and will not be repeated in this embodiment.

[0064] Step 604: After determining that the terminal station needs to switch cells, the master station sends an instruction to the source cell controller that the terminal station is to be switched to the target cell.

[0065] After receiving the instruction from the source cell controller that the terminal station is to switch to the target cell, the terminal station executes step 605.

[0066] Step 605: The source cell controller sends a cell access request to the target cell controller.

[0067] Specifically, the cell access request is an A1AccessRequest message. In this embodiment, information prefixed with "A1" indicates messages transmitted via the terrestrial circuit communication interface.

[0068] Step 606: The target cell controller sends a cell resource allocation message to the source cell controller.

[0069] Specifically, cell resource allocation messages include overhead response messages, such as A1OverheadResponse messages, and access response messages, such as A1AccessResponse messages.

[0070] Step 607: The source cell controller sends a cell resource allocation message to the terminal station.

[0071] Upon receiving the A1OverheadResponse, the source cell controller transmits a target overhead message (UmTargetOverhead) to the end station via satellite. Upon receiving the A1AccessResponse, the source cell transmits a target access response message (UmTargetAccessResponse) via satellite. The target overhead message carries beam resource information for the target cell, while the target access response message includes control resource information used by the target cell for the control end station.

[0072] After the terminal station connects to the target cell, proceed to step 608.

[0073] Step 608: The terminal station sends a cell access completion message to the target cell controller.

[0074] Specifically, the cell access completion message is the UmAccessComplete message.

[0075] Step 609: The target cell controller sends a handover completion message to the source cell controller.

[0076] The switchover completion message is the A1HandoffComplete message.

[0077] After the handover process is completed, the source cell controller releases the control resources used for the control terminal.

[0078] This embodiment enables the terminal station to continue transmitting service data while switching target cells, eliminating the need to complete the cell access process through satellite air interface interaction, significantly shortening service interruption time and improving user experience.

[0079] The steps of the various methods described above are only for clarity. In practice, they can be combined into one step or some steps can be split into multiple steps. As long as they include the same logical relationship, they are all within the scope of protection of this patent. Adding insignificant modifications or introducing insignificant designs to the algorithm or process, but without changing the core design of the algorithm and process, are also within the scope of protection of this patent.

[0080] Another embodiment of the present invention relates to a cell controller, such as Figure 7 As shown, the cell controller serves as the source cell controller. The source cell controller is connected to the terminal station via satellite, to the target cell controller via a terrestrial circuit communication interface, and to the master station. The cell controller includes: an instruction receiving module 701, used to send a cell access request to the target cell controller if it receives an instruction from the master station that the terminal station needs to switch to the target cell; a message receiving module 702, used to receive a target cell resource allocation message from the target cell controller based on the cell access request via the terrestrial circuit communication interface; and a message sending module 703, used to send the target cell resource allocation message to the terminal station via the satellite, so that the terminal station can switch to the target cell according to the target cell resource allocation message.

[0081] In some embodiments, the target cell resource allocation message involved in the message receiving module 702 includes: the overhead response message of the target cell and the access response message of the target cell; wherein, the overhead response message includes: the beam resource information of the target cell; and the access response message includes: control resource information for controlling the terminal station.

[0082] In some embodiments, if the message receiving module 702 receives a cell handover completion message, it releases the control resources used to control the terminal station.

[0083] In some embodiments, the instruction receiving module is further configured to receive a Global Positioning System (GPS) message sent by the terminal station via the satellite; send the GPS message to the master station so that the master station can detect whether the terminal station needs to switch cells based on the GPS message, and after determining that the terminal station needs to switch cells, send an instruction to the source cell controller to allow the terminal station to switch to the target cell.

[0084] Another embodiment of the present invention relates to a cell controller, such as Figure 8 As shown, the cell controller serves as the target cell controller, which communicates with the source cell controller via a terrestrial circuit communication interface. The source cell controller communicates with the terminal station via satellite. The cell controller includes: a message generation module 801, used to allocate target cell resources to the terminal station according to the cell access request sent by the cell controller if a cell access request is received, and generate a target cell resource allocation message; and a message transmission module 802, used to send the target cell resource allocation message to the source cell controller via the terrestrial circuit communication interface, so that the source cell controller can transmit the target cell resource allocation message to the terminal station.

[0085] In some embodiments, the target cell resource allocation message in the message generation module 801 includes: the overhead response message of the target cell and the access response message of the target cell; wherein, the overhead response message includes: the beam resource information of the target cell; and the access response message includes: control resource information for controlling the terminal station.

[0086] In some embodiments, the target cell controller further includes a resource release module, which is used to transmit a cell handover completion message to the source cell controller through the terrestrial circuit communication interface after receiving a cell access completion message sent by the end station via satellite, so that the source cell controller can release the management resources of the end station.

[0087] It is not difficult to see that the implementation methods of the two cell controllers described above are system embodiments corresponding to the method implementation methods described above, and this implementation method can be implemented in conjunction with the above implementation methods. The relevant technical details mentioned in the implementation methods of the above cell handover method are still valid in this implementation method, and will not be repeated here to reduce repetition. Accordingly, the relevant technical details mentioned in this implementation method can also be applied to the first implementation method.

[0088] It is worth mentioning that all modules involved in the above two cell controller implementations are logical modules. In practical applications, a logical unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. Furthermore, to highlight the innovative aspects of this invention, this embodiment does not introduce units that are not closely related to solving the technical problem proposed by this invention; however, this does not mean that other units are absent from this embodiment.

[0089] Another embodiment of the present invention relates to an electronic device, such as Figure 9 As shown, it includes: at least one processor 901; and a memory 902 communicatively connected to the at least one processor 901; wherein the memory 902 stores instructions executable by the at least one processor 901, the instructions being executed by the at least one processor 901 to enable the at least one processor 901 to perform the cell handover methods in the above embodiments.

[0090] The memory and processor are connected via a bus, which can include any number of interconnecting buses and bridges, connecting various circuits of one or more processors and memories. The bus can also connect various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and will not be described further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by the processor is transmitted over the wireless medium via an antenna, which further receives data and transmits it to the processor.

[0091] The processor manages the bus and general processing, and also provides various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory is used to store data used by the processor during operation.

[0092] Another embodiment of the present invention relates to a computer-readable storage medium storing a computer program. When executed by a processor, the computer program implements the method embodiments described above.

[0093] That is, those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0094] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A cell handover method, characterized in that, Applied to a source cell controller, the source cell controller is connected to a terminal station via satellite, to a target cell controller via a terrestrial circuit communication interface, and to a master station via devices on the Internet. The cell handover method includes: If the master station receives an instruction from the terminal station to switch to the target cell, then a cell access request is sent to the target cell controller. The target cell resource allocation message, received by the target cell controller in response to the cell access request, is obtained through the ground circuit communication interface. The satellite sends the target cell resource allocation message to the terminal station, so that the terminal station can switch to the target cell according to the target cell resource allocation message.

2. The cell handover method according to claim 1, characterized in that, The target cell resource allocation message includes: the target cell overhead response message and the target cell access response message; wherein, the overhead response message includes: the target cell beam resource information; and the access response message includes: control resource information for controlling the terminal station.

3. The cell handover method according to claim 1, characterized in that, After sending the target cell resource allocation message to the terminal station via the satellite, the method further includes: If a cell handover completion message is received, the control resources used to control the terminal station are released.

4. The cell handover method according to any one of claims 1 to 3, characterized in that, Before receiving the cell handover message from the terminal station from the master station, the method further includes: Receive GPS messages sent by the terminal station via the satellite; The GPS message is sent to the master station so that the master station can detect whether the terminal station needs to switch cells based on the GPS message, and after determining that the terminal station needs to switch cells, it sends an instruction to the source cell controller for the terminal station to switch to the target cell.

5. A cell handover method, characterized in that, Applied to a target cell controller, the target cell controller is communicatively connected to a source cell controller via a terrestrial circuit communication interface. The source cell controller is communicatively connected to an end station via satellite and to a master station via devices on the Internet. The cell handover method includes: If a cell access request is received from the source cell controller, target cell resources are allocated to the terminal station according to the cell access request, and a target cell resource allocation message is generated. The target cell resource allocation message is sent to the source cell controller through the ground circuit communication interface, so that the source cell controller can transmit the target cell resource allocation message to the terminal station.

6. The cell handover method according to claim 5, characterized in that, The target cell resource allocation message includes: the target cell overhead response message and the target cell access response message; wherein, the overhead response message includes: the target cell beam resource information; and the access response message includes: control resource information for controlling the terminal station.

7. The cell handover method according to claim 5 or 6, characterized in that, After sending the target cell resource allocation message to the source cell controller via the terrestrial circuit communication interface, the method further includes: If a cell access completion message is received from the terminal station via satellite, the cell handover completion message is transmitted to the source cell controller through the terrestrial circuit communication interface so that the source cell controller can release the management resources of the terminal station.

8. A community controller, characterized in that, The cell controller serves as the source cell controller, which is connected to the terminal station via satellite, to the target cell controller via a terrestrial circuit communication interface, and to the master station via devices on the Internet. The cell controller includes: The instruction receiving module is used to send a cell access request to the target cell controller if it receives an instruction from the master station that the terminal station is to be switched to the target cell. The message receiving module is used to receive the target cell resource allocation message from the target cell controller in response to the cell access request through the ground circuit communication interface; The message sending module is used to send the target cell resource allocation message to the terminal station via the satellite, so that the terminal station can switch to the target cell according to the target cell resource allocation message.

9. A community controller, characterized in that, The cell controller serves as the target cell controller, which communicates with the source cell controller via a terrestrial circuit communication interface. The source cell controller communicates with the terminal station via satellite and with the master station via devices on the Internet. The cell controller includes: The message generation module is used to allocate target cell resources to the terminal station according to the cell access request if it receives a cell access request sent by the source cell controller, and generate a target cell resource allocation message. The message transmission module is used to send a target cell resource allocation message to the source cell controller through the ground circuit communication interface, so that the source cell controller can transmit the target cell resource allocation message to the terminal station.

10. An electronic device, characterized in that, include: At least one processor; as well as, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the cell handover method as described in any one of claims 1 to 4, or to perform the cell handover method as described in any one of claims 5 to 7.

11. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the cell handover method according to any one of claims 1 to 4, or the cell handover method according to any one of claims 5 to 7.

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