CN116233119B

CN116233119B - Method, system and storage medium based on satellite temporary storage shared file

Info

Publication number: CN116233119B
Application number: CN202310506848.0A
Authority: CN
Inventors: 王佳增; 侯海洋; 韩雍博; 高千峰; 常明
Original assignee: Galaxyspace Beijing Communication Technology Co ltd
Current assignee: Galaxyspace Beijing Communication Technology Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-07-07
Anticipated expiration: 2043-05-08
Also published as: CN116233119A

Abstract

The application discloses a method, a system and a storage medium for temporarily storing shared files based on satellites, comprising the following steps: receiving a file acquisition request of a first terminal device at a first track position; sending a file acquisition request to a second terminal device; the second terminal equipment sends first response information to the first satellite under the condition that the target file resource is determined to be deployed; acquiring target file resources from second terminal equipment, and temporarily storing the target file resources; and transmitting the target file resource to the first terminal device in case the first terminal device has established a broadband communication connection with the first satellite. Therefore, the technical effects of greatly shortening the file transmission time and improving the file transmission efficiency are achieved.

Description

Method, system and storage medium based on satellite temporary storage shared file

Technical Field

The present disclosure relates to the field of satellite communications, and in particular, to a method, system, and storage medium for temporarily storing shared files based on satellites.

Background

The development of wireless mobile communication technology and the improvement of the demand of wireless network which is convenient for people greatly promote the demand development and technology update of wireless communication, so that the coverage range of network communication is wider.

Satellite networks are also one type of wireless network, and the beam frequency range is divided into narrowband and wideband. Narrowband and wideband are relatively speaking, and narrowband and wideband may transmit both digital and analog signals, with narrowband being relatively slow. Fig. 1 is a schematic diagram of broadband coverage and narrowband coverage of a prior art satellite. Referring to fig. 1, the difference between narrowband and wideband is that narrowband communication uses a smaller bandwidth range than wideband communication, but the coverage of the beam of narrowband communication is larger than that of wideband communication. Further, the narrow band can only satisfy the transmission of a small amount of text information, while the wide band can transmit a large amount of video, audio, image information and files of data.

The existing file transmission mode is to transmit files by using an internet server, but there are a plurality of disadvantages in transmitting files by using the internet server. For example, in open field areas without internet coverage, files cannot be transferred.

Based on the above problems, a way of transmitting files using a plurality of satellites and a plurality of gateway stations is also proposed. Fig. 2 is a schematic diagram of a prior art sharing of files using a plurality of satellites, a plurality of gateway stations, and a file sharing server. Referring to fig. 2, a plurality of terminal devices 1~m establish user links with the satellite 1 so that communication between the plurality of terminal devices 1~m and the satellite 1 is enabled. The satellite 1 establishes a feeder link with the gateway station 1 so that communication between the satellite 1 and the gateway station 1 is enabled. Then, a communication connection is established between the gateway station 1 and the gateway station 2 through the file sharing server, so that the file can be transferred. Furthermore, terminal device u establishes a user link with satellite 2, so that communication between terminal device u and satellite 2 is enabled. The satellite 2 establishes a feeder link with the gateway station 2 so that communication between the satellite 2 and the gateway station 2 is enabled. Thus, the terminal device 1~m can transmit the file resource to the terminal device u.

Therefore, how to transmit files for terminal devices by utilizing the characteristics of satellite broadband communication and narrowband communication, thereby reducing the waste of resources and improving the file transmission efficiency becomes a problem to be solved.

The publication number is CN115632923A, and the name is an OQPSK-based unmanned aerial vehicle and satellite ultra-wideband communication method and related equipment. Comprising the following steps: and (3) carrying out timing synchronization on the modulated signal by using a Gardner algorithm, sampling the modulated signal, carrying out frequency offset correction, phase offset correction and signal equalization on the modulated signal in a half-bit period, realizing carrier synchronization on the signal, and then combining the signals in adjacent half-bit periods into a one-bit signal for coherent demodulation.

Satellite data processing method and device with publication number of CN115173933A and named satellite. The method comprises the steps of receiving control plane information sent by a satellite terminal through a narrow-band wave beam; responding to the control plane message, and performing planet processing; configuring a broadband beam in response to the control plane message; receiving service information sent by a satellite terminal through broadband wave beams; and transparently transmitting the service message to the target.

Aiming at the technical problems of how to transmit files for terminal equipment by utilizing the characteristics of satellite broadband communication and the characteristics of narrowband communication in the prior art, thereby reducing the waste of resources and improving the file transmission efficiency, no effective solution is proposed at present.

Disclosure of Invention

The embodiment of the disclosure provides a method, a system and a storage medium for temporarily storing and sharing files based on satellites, which at least solve the technical problems in the prior art how to transmit files for terminal equipment by utilizing the characteristics of satellite broadband communication and the characteristics of narrowband communication, thereby reducing the waste of resources and improving the file transmission efficiency.

According to an aspect of an embodiment of the present disclosure, there is provided a method for temporarily storing a shared file based on a satellite, including: the method comprises the steps that a first satellite receives a file acquisition request which is sent by first terminal equipment and used for acquiring target file resources through a narrow-band communication link at a first orbit position; the first satellite sends a file acquisition request for acquiring target file resources to the second terminal equipment through a narrow-band communication link, wherein the second terminal equipment has established broadband communication connection with the first satellite; the second terminal equipment sends first response information corresponding to the file acquisition request to the first satellite under the condition that the target file resource is determined to be deployed; the first satellite acquires target file resources from the second terminal equipment through a broadband communication link, and temporarily stores the target file resources under the condition that the first terminal equipment and the second terminal equipment are not simultaneously connected with the first satellite in a broadband communication mode; and the first satellite sends the temporarily stored target file resource to the first terminal device through the broadband communication link under the condition that the first terminal device is judged to have established broadband communication connection with the first satellite at the second orbit position.

According to another aspect of the embodiments of the present disclosure, there is also provided a storage medium including a stored program, wherein the method of any one of the above is performed by a processor when the program is run.

According to another aspect of the embodiments of the present disclosure, there is also provided a system for temporarily storing shared files based on satellites, including: the terminal interaction module of the first satellite is used for receiving a file acquisition request sent by first terminal equipment for acquiring target file resources through a narrow-band communication link at a first track position; the terminal interaction module of the first satellite is used for sending a file acquisition request for acquiring target file resources to the second terminal equipment through a narrow-band communication link, wherein the second terminal equipment has established broadband communication connection with the first satellite; the terminal interaction module of the first satellite is used for acquiring target file resources from the second terminal equipment through a broadband communication link, and temporarily storing the target file resources by the file temporary storage space under the condition that the position determining module determines that the first terminal equipment and the second terminal equipment do not establish broadband communication connection with the first satellite at the same time; and the position determining module of the first satellite is used for transmitting the temporarily stored target file resource to the first terminal equipment through the broadband communication link by utilizing the file sharing module and the terminal interaction module under the condition that the second orbit position judges that the first terminal equipment has established broadband communication connection with the first satellite.

Because the embodiment of the application utilizes the characteristics of larger narrow-band beam coverage area and information transmission, when the terminal equipment is in the narrow-band beam coverage area of the satellite, information can be transmitted with the satellite in a two-way manner through a narrow-band communication link. Further, the embodiment of the application also utilizes the characteristics of smaller broadband beam coverage area and file transmission capability, so that when the terminal equipment is in the broadband beam coverage area of the satellite, the file can be transmitted bidirectionally with the satellite through a broadband communication link. Therefore, in the case that the first terminal device does not establish a broadband communication connection with the first satellite, and the second terminal device establishes a broadband communication connection with the first satellite, the satellite can acquire the target file resource from the second terminal device through the broadband communication link, and temporarily store the target file resource. And the first satellite sends the temporarily stored target file resource to the first terminal equipment until the first terminal equipment and the first satellite establish broadband communication connection. Therefore, the first satellite receives the file acquisition request sent by the first terminal equipment through the narrow-band communication link, temporarily stores the target file resource acquired from the second terminal equipment in the first satellite until the broadband communication connection is established with the first terminal equipment, and then sends the target file resource to the first terminal equipment, so that the technical effects of greatly shortening the file transmission time and improving the file transmission efficiency are achieved. And further, the technical problems of how to transmit files for terminal equipment by utilizing the characteristics of satellite broadband communication and the characteristics of narrowband communication in the prior art are solved, so that the waste of resources is reduced and the file transmission efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and do not constitute an undue limitation on the disclosure. In the drawings:

FIG. 1 is a schematic diagram of a wideband beam coverage area and a narrowband beam coverage area of a prior art satellite;

FIG. 2 is a schematic diagram of a prior art sharing of files using a plurality of satellites, a plurality of gateway stations, and a file sharing server;

fig. 3 is a schematic diagram of a hardware architecture of a satellite system according to a first aspect of embodiment 1 of the present disclosure;

fig. 4 is a schematic diagram of bidirectional data transmission between a plurality of terminal devices and a first satellite according to a first aspect of embodiment 1 of the present disclosure;

FIG. 5 is a block diagram of a satellite according to a first aspect of embodiment 1 of the present disclosure;

fig. 6 is a block diagram of a terminal device according to the first aspect of embodiment 1 of the present disclosure;

FIG. 7 is a flow chart of a method for satellite-based temporary sharing of files according to the first aspect of embodiment 1 of the present disclosure;

fig. 8A is a schematic diagram of a second terminal device in a broadband beam coverage area and a first terminal device in a narrowband beam coverage area according to the first aspect of embodiment 1 of the present disclosure;

Fig. 8B is a schematic diagram of a first satellite transmitting a target file resource to a first terminal device when the first terminal device is within a broadband beam coverage area according to a first aspect of embodiment 1 of the present disclosure;

FIG. 9A is a schematic diagram of a plurality of second terminal devices sending target file resources to a first satellite according to a first aspect of embodiment 1 of the present disclosure;

FIG. 9B is a schematic diagram of a first satellite transmitting target file resources received from a plurality of second terminal devices to a first terminal device according to a first aspect of embodiment 1 of the present disclosure;

fig. 10A is a schematic diagram of a first terminal device in a broadband beam coverage area and a second terminal device in a narrowband beam coverage area according to a first aspect of embodiment 1 of the disclosure;

FIG. 10B is a schematic diagram of a second terminal device sending a target file resource to a second satellite according to the first aspect of embodiment 1 of the present disclosure; and

fig. 10C is a schematic diagram of a second satellite transmitting a target file resource obtained from a second terminal device to a first terminal device according to the first aspect of embodiment 1 of the present application.

Detailed Description

In order to better understand the technical solutions of the present disclosure, the following description will clearly and completely describe the technical solutions of the embodiments of the present disclosure with reference to the drawings in the embodiments of the present disclosure. It will be apparent that the described embodiments are merely embodiments of a portion, but not all, of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure, shall fall within the scope of the present disclosure.

It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the foregoing figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the disclosure described herein may be capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

According to the present embodiment, there is provided an embodiment of a method for satellite-based temporary storage of shared files, it being noted that the steps shown in the flowchart of the figures may be performed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order different from that shown or described herein.

Fig. 3 further shows a schematic diagram of the hardware architecture of the satellite system 10. Referring to fig. 3, the satellite system 10 includes an integrated electronic system including: processor, memory, bus management module and communication interface. Wherein the memory is coupled to the processor such that the processor can access the memory, read program instructions stored in the memory, read data from the memory, or write data to the memory. The bus management module is connected to the processor and also to a bus, such as a CAN bus. The processor can communicate with the satellite-borne peripheral connected with the bus through the bus managed by the bus management module. In addition, the processor is also in communication connection with devices such as a camera, a star sensor, a measurement and control transponder, a data transmission device and the like through a communication interface. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 3 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the satellite system may also include more or fewer components than shown in FIG. 3, or have a different configuration than shown in FIG. 3.

It should be noted that one or more of the processors and/or other data processing circuits shown in fig. 3 may be referred to herein generally as a "data processing circuit". The data processing circuit may be embodied in whole or in part in software, hardware, firmware, or any other combination. Furthermore, the data processing circuitry may be a single stand-alone processing module, or incorporated in whole or in part into any of the other elements in the computing device. As referred to in the embodiments of the present disclosure, the data processing circuit acts as a processor control (e.g., selection of the variable resistance termination path to interface with).

The memory shown in fig. 3 may be used to store software programs and modules of application software, such as a program instruction/data storage device corresponding to the method based on satellite temporary storage sharing files in the embodiment of the disclosure, and the processor executes the software programs and modules stored in the memory, thereby performing various functional applications and data processing, that is, implementing the method based on satellite temporary storage sharing files of the application program. The memory may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.

It should be noted here that, in some alternative embodiments, the apparatus shown in fig. 3 described above may include hardware elements (including circuits), software elements (including computer code stored on a computer readable medium), or a combination of both hardware and software elements. It should be noted that fig. 3 is only one example of a specific example and is intended to illustrate the types of components that may be present in the above-described apparatus.

Fig. 4 is a schematic diagram illustrating bidirectional data transmission between a plurality of terminal devices 301-30 m and a first satellite 201 according to an embodiment of the present application. Referring to fig. 4, user links may be established between a plurality of terminal devices 301-30 m and the first satellite 201, so that the first satellite 201 may be used as a "transfer station" between the terminal devices 301-30 m. Therefore, a plurality of terminal devices 301 to 30m may establish user links for interaction with the first satellite 201. The data information of the interactions between the plurality of terminal devices 301 to 30m and the first satellite 201 may be, for example, request information of the first terminal device for obtaining the target file resource, target file resource information shared by the second terminal device, and the like.

Fig. 5 is a modular schematic of satellite system 10 according to an embodiment of the present application. Referring to fig. 5, a terminal interaction module is included in the satellite system 10. Wherein the satellite system 10 transmits data bi-directionally between the terminal interaction module and the terminal device.

The satellite system 10 includes a position determination module therein. Wherein the satellite system 10 determines the location information of the first terminal device and the location information of the second terminal device based on the location determination module.

Also included in satellite system 10 is a file sharing module. Wherein the file sharing module in the satellite system 10 is configured to share the target file resource.

In addition, a document temporary storage space is also provided in the satellite system 10. The file temporary storage space is mainly used for temporarily storing target file resources acquired from the second terminal equipment. For example,

documents

1, 2, 3, 4, 5, and 6 are registered in the document registration space. A temporary file resource table is arranged corresponding to the file temporary space. The temporary file resource table is used for indicating file resource information temporarily stored in the file temporary storage space.

Further, a file subscription table, ephemeris and network file resource table are also provided in the satellite system 10. Wherein the file subscription table is used to instruct the first satellite 201 to transmit time information of the target file resource (i.e., time information of the first satellite 201 establishing a broadband communication connection with the first terminal device) to the first terminal device. Ephemeris is track information that indicates the time of operation and the location of operation of the satellite system 10. The network file resource table is used for indicating file resource information stored in all terminal devices in the coverage area of the narrow-band beam.

In addition, a priority relation table is provided in the satellite system 10. When the first satellite 201 needs to send the target file resources to the plurality of first terminal devices, the target file resources need to be sent to each first terminal device according to the sequence of establishing broadband communication connection between each first terminal device and the first satellite 201. Further, the first satellite 201 may also send different target file resources to each first terminal device. The first terminal equipment corresponding to the target file resources with more requests has higher priority; the first terminal equipment corresponding to the target file resource with smaller request quantity has lower priority.

Fig. 6 is a schematic diagram of a terminal device according to an embodiment of the present application. Referring to fig. 6, a satellite interaction module and a user interface module are provided in the terminal device. The satellite interaction module is configured to establish a user link with the satellite system 10, so that the terminal device can interact with the satellite system 10 through the satellite interaction module. Further, the user can control the terminal device through the user interface module, for example, the user performs an operation of "clicking" on the name information of the target file resource on the terminal device through the user interface module, thereby selecting the target file resource to be acquired.

The terminal device 301 further includes a file operation module. The file operation module can call or store file resources. For example, when the terminal device is a second terminal device for providing the target file resource, and when the satellite interaction module receives the file acquisition request, the file operation module can call out the target file resource in the file storage space, so that the target file resource is transmitted to the satellite system 10 through the satellite interaction module.

The terminal device 301 further includes a file storage space therein. The file storage space is used for storing files. For example, file 1, file 2, file 3, file 4, file 5, and file 6 are stored in the file storage space.

In addition, the terminal device 301 is further provided with a local file resource table, a network file resource table, a file transfer table, and a download task table. The local file resource table is used for indicating file resource information contained in the file storage space; the network file resource table is used for indicating file resource information contained in terminal equipment in the coverage area of the narrow-band beam of the satellite system 10; the file transmission table is used for indicating target file resource information which is being sent to the satellite system 10 by the terminal equipment; the downloading task list is used for indicating the target file resource information which is being downloaded by the terminal equipment.

Further, a file subscription table (i.e., file subscription information) transmitted by the satellite system 10 is also provided in the terminal device 301. The file subscription table is used for indicating time information of the satellite system 10 for sending the target file resource to the first terminal device.

In the above-described operating environment, according to a first aspect of the present embodiment, there is provided a method for temporarily storing a shared file based on a satellite, which is implemented by a processor shown in fig. 3. Fig. 7 shows a schematic flow chart of the method, and referring to fig. 7, the method includes:

s702: the method comprises the steps that a first satellite receives a file acquisition request which is sent by first terminal equipment and used for acquiring target file resources through a narrow-band communication link at a first orbit position;

s704: the first satellite sends a file acquisition request for acquiring target file resources to the second terminal equipment through a narrow-band communication link, wherein the second terminal equipment has established broadband communication connection with the first satellite;

s706: the second terminal equipment sends first response information corresponding to the file acquisition request to the first satellite under the condition that the target file resource is determined to be deployed;

s708: the first satellite acquires target file resources from the second terminal equipment through a broadband communication link, and temporarily stores the target file resources under the condition that the first terminal equipment and the second terminal equipment are not simultaneously connected with the first satellite in a broadband communication mode; and

S710: and the first satellite sends the temporarily stored target file resource to the first terminal equipment through a broadband communication link under the condition that the first terminal equipment is judged to have established broadband communication connection with the first satellite at the second orbit position.

Fig. 8A is a schematic diagram of a second terminal device in a broadband beam coverage area and a first terminal device in a narrowband beam coverage area according to an embodiment of the application. Referring to fig. 8A, a first satellite 201 radiates a narrowband beam coverage area of a larger area and a wideband beam coverage area of a smaller area on the ground. And the first terminal device shown in fig. 8A is within the narrowband beam coverage area of the first satellite 201, the second terminal device is within the wideband beam coverage area of the first satellite 201, and both the first terminal device and the second terminal device are capable of transmitting information data over a narrowband communication link. Furthermore, it is possible to provide a device for the treatment of a disease. The location of the first terminal device relative to the second terminal device in fig. 8A is the same as the direction of movement of the first satellite 201, which illustrates that the first terminal device can be in the broadband beam coverage area of the first satellite in the future and can establish a broadband communication connection with the first satellite 201.

Fig. 10A is a schematic diagram of a first terminal device in a broadband beam coverage area and a second terminal device in a narrowband beam coverage area according to an embodiment of the application. Referring to fig. 10A, a first terminal device is within a broadband beam coverage area of a first satellite 201, a second terminal device is within a narrowband beam coverage area of the first satellite 201, and both the first terminal device and the second terminal device are capable of transmitting information data over a narrowband communication link.

Furthermore, it is possible to provide a device for the treatment of a disease. The location of the second terminal device in fig. 10A relative to the first terminal device, as opposed to the direction of movement of the first satellite 201, indicates that the second terminal device will not be able to be within the broadband beam coverage area of the first satellite 201 in the future and will not be able to establish a broadband communication connection with the first satellite 201. Thus, the first terminal device needs to acquire the target file resource from the second terminal device via, for example, the second satellite 202.

Thus, first, in the case where both the first terminal device and the second terminal device are within the narrowband beam coverage area of the first satellite 201, the first terminal device and the second terminal device establish narrowband communication links for narrowband communication connection with the first satellite 201, respectively. All terminal devices within the narrowband beam coverage area of the first satellite 201 then transmit the local file resources to the first satellite 201 over the narrowband communication link. The first satellite 201 integrates the local file resource tables of the respective terminal devices into a network file resource table. Table 1 is a network file resource table within the first satellite 201.

TABLE 1

As shown with reference to table 1, for example, terminal device 301 is deployed with file 1, terminal device 302 is deployed with

files

1 and 3, and terminal device 303 is deployed with file 2.

The first terminal device then transmits a file acquisition request for acquiring the target file resource to the first satellite 201 via the narrowband communication link. The file acquisition request may be, for example, a request generated by the first terminal device in response to an operation of the user "clicking" on the name information of the target file resource.

Further, the first satellite 201 receives a file acquisition request for acquiring a target file resource transmitted by the first terminal device through the narrowband communication link at the first orbital position (S702). For example, the first satellite 201 receives a file acquisition request for acquiring the file 2 transmitted by the first terminal device. And wherein the first satellite 201 is in an orbital position (i.e., a first orbital position) such that the second terminal device is just within the wideband beam coverage area of the first satellite 201, the second terminal device establishes a wideband communication connection with the first satellite 201. The first terminal device is not in the coverage area of the broadband beam, so the first terminal device cannot establish a broadband communication connection with the first satellite 201.

Then, the first satellite 201 transmits a file acquisition request to acquire the target file resource to the second terminal apparatus through the narrowband communication link (S704). For example, the first satellite 201 transmits a file acquisition request to acquire the file 2 to the second terminal apparatus through the narrowband communication link.

Further, after receiving the file acquisition request corresponding to the target file resource, the second terminal device inquires whether the target file resource is deployed, and if it is determined that the target file resource is deployed, sends first response information corresponding to the file acquisition request to the first satellite 201 (S706). For example, when the second terminal device receives a request for acquiring the file 2, response information corresponding to the file 2 is transmitted to the first satellite 201 through the narrowband communication link. The first response information may be, for example, "file 1 stored".

Further, since the second terminal device has established a broadband communication connection with the first satellite 201, the first satellite 201 is able to directly acquire the target file resource from the second terminal device via the broadband communication link. Further, since the first satellite 201 can directly obtain the target file resource from the second terminal device and send the target file resource to the first terminal device in the case where the first terminal device and the second terminal device establish broadband communication connection with the first satellite 201 at the same time, the first satellite 201 does not need to temporarily store the target file resource in the case where the first terminal device and the second terminal device establish broadband communication connection with the first satellite 201 at the same time.

Based on this, the first satellite 201 temporarily stores the target file resource in the file temporary storage space in a case where it is determined that the first terminal device and the second terminal device do not simultaneously establish broadband communication connection with the first satellite 201 (S708). For example, after the first satellite 201 obtains the target file resource from the second terminal device, since the first terminal device has not yet established a broadband communication connection with the first satellite 201 at this time, the first satellite 201 temporarily stores the target file resource in the file temporary storage space until the first terminal device establishes a broadband communication connection with the first satellite 201, and then sends the target file resource to the first terminal device. Table 2 shows a temporary file resource table in the first satellite 201.

TABLE 2

As shown with reference to table 2, the second terminal device that needs to provide file 1 to terminal device 301 and terminal device 302 is terminal device 305; the second terminal device that needs to provide file 2 to terminal device 302 is terminal device 304; the second terminal device that needs to provide the terminal device 303 with the file 3 is terminal device 306.

Further, the second terminal device is further provided with a file transmission table for indicating the file transmission progress. Table 3 shows a file transfer table in the second terminal device.

TABLE 3 Table 3

As shown with reference to table 3, the transmission schedule of the terminal device 305 transmitting the file 1 to the first satellite 201 is schedule 1; the transmission progress of the terminal device 304 transmitting the file 2 to the first satellite 201 is progress 2; the transmission schedule of the terminal device 306 transmitting the file 3 to the first satellite 201 is schedule 3.

Fig. 8B is a schematic diagram of a first satellite sending a target file resource to a first terminal device when the first terminal device is within a broadband beam coverage area according to an embodiment of the present application. Referring to fig. 8A and 8B, when the first satellite 201 moves to the second orbit position, it is determined whether the first terminal device has established a broadband communication connection with the first satellite 201. In the case where the first terminal device has established a broadband communication connection with the first satellite 201, the first satellite 201 transmits the temporary target file resource to the first terminal device through the broadband communication link (S710); in the event that the first terminal device does not establish a broadband communication connection with the first satellite 201, then the first terminal device needs to establish a broadband communication connection with the second satellite (i.e., establish a communication connection with a satellite other than the first satellite 201). The foregoing will be described in detail later, and thus will not be described in detail here.

As described in the background art, the existing file transmission manner is to transmit the file by using an internet server, but there are many drawbacks in transmitting the file by using the internet server. For example, in areas without internet coverage, files cannot be transferred. And a feed circuit is built by utilizing a plurality of satellites and a plurality of gateway stations, so that the mode of transmitting files has the problems of resource waste and low transmission efficiency. Therefore, how to transmit files for terminal devices by utilizing the characteristics of satellite broadband communication and narrowband communication, thereby reducing the waste of resources and improving the file transmission efficiency becomes a problem to be solved.

In view of this, the present application provides a method for temporarily storing shared files based on satellites. Further, the embodiment of the application uses the characteristics of larger narrowband beam coverage area and information transmission capability, so that when the terminal equipment is in the narrowband beam coverage area of the satellite, information can be transmitted with the satellite in a bidirectional manner through a narrowband communication link. Further, the embodiment of the application also utilizes the characteristics of smaller broadband beam coverage area and file transmission capability, so that when the terminal equipment is in the broadband beam coverage area of the satellite, the file can be transmitted bidirectionally with the satellite through a broadband communication link. Thus, in the case where the first terminal device does not establish a broadband communication connection with the first satellite 201, and the second terminal device establishes a broadband communication connection with the first satellite 201, the first satellite 201 can acquire the target file resource from the second terminal device through the broadband communication link, and temporarily store the target file resource. Until the first terminal device establishes a broadband communication connection with the first satellite 201, the first satellite 201 transmits the temporary stored target file resource to the first terminal device. Therefore, the file acquisition request sent by the first terminal equipment is received through the narrow-band communication link, the target file resource acquired from the second terminal equipment is temporarily stored in the first terminal equipment, and the target file resource is sent to the first terminal equipment until broadband communication connection is established with the first terminal equipment, so that the technical effects of greatly shortening the file transmission time and improving the file transmission efficiency are achieved. And further, the technical problems of how to transmit files for terminal equipment by utilizing the characteristics of satellite broadband communication and the characteristics of narrowband communication in the prior art are solved, so that the waste of resources is reduced and the file transmission efficiency is improved.

Optionally, the operation of the first satellite determining that the first terminal device is capable of establishing a broadband communication connection with the first satellite in the future includes: the first satellite extracts the position information of the first terminal device from the file acquisition request; and the first satellite judges that the first terminal equipment can establish broadband communication connection with the first satellite in the future according to the broadband coverage area of the first satellite, the ephemeris information and the position information of the first terminal equipment.

Specifically, in the case where the first satellite 201 determines that the first terminal device does not establish a broadband communication connection with the first satellite 201, the first satellite 201 needs to further determine whether the first terminal device can establish a broadband communication connection with the first satellite 201 in the future.

First, the first satellite 201 extracts the location information of the first terminal device from the file acquisition request. The position information of the first terminal device may be, for example, longitude and latitude coordinate information.

Then, the first satellite 201 determines whether the first terminal device can establish a broadband communication connection with the first satellite 201 in the future, based on the broadband coverage area of the first satellite 201, the ephemeris information, and the location information of the first terminal device. The ephemeris information of the first satellite 201 is track information indicating the running time and the running position of the first satellite 201. That is, the operation time and the operation position of the first satellite 201 are in one-to-one correspondence.

Thus, knowing the ephemeris information of the first satellite 201 and the location information of the first terminal device, the distance of the first terminal device from the center point of the broadband beam coverage area of the first satellite 201 can be known.

Whereas if the broadband coverage area of the first satellite 201 is known, the diameter length of the first satellite 201 may be determined. Further, based on the distance between the first terminal device and the center point of the broadband beam coverage area of the first satellite 201, and the diameter length of the first satellite 201, it can be determined whether the first terminal device is within the broadband beam coverage area of the first satellite 201.

If the distance between the first terminal device and the center point of the broadband beam coverage area of the first satellite 201 is smaller than the diameter of the first satellite 201, it indicates that the first terminal device is in the broadband beam coverage area of the first satellite 201; if the distance between the first terminal device and the center point of the broadband beam coverage area of the first satellite 201 is greater than the diameter of the first satellite 201, it indicates that the first terminal device is not within the broadband beam coverage area of the first satellite 201.

Therefore, the above operation can achieve the technical effect of determining whether the first terminal device is in the broadband beam coverage area of the first satellite 201, thereby providing necessary conditions for the first terminal device to transmit the target file resource.

Optionally, the method further comprises: and under the condition that the first terminal equipment can establish broadband communication connection with the first satellite in the future, the first satellite creates file subscription information and sends the file subscription information to the first terminal equipment, wherein the file subscription information is used for indicating the time when the first satellite sends target file resources to the first terminal equipment.

Specifically, if the first satellite 201 determines that the first terminal device is capable of establishing a broadband communication connection with the first satellite 201 in the future, file subscription information is created. The file subscription information is used to indicate the time when the first satellite 201 sends the target file resource to the first terminal device. And the file subscription information may be, for example, a file subscription table.

The first satellite 201 then transmits the file subscription information to the first terminal device. So that the first terminal device can make preparations for receiving the target file resource at predetermined times. Table 4 shows a file subscription table for the first satellite 201.

TABLE 4 Table 4

As shown with reference to table 4, for example, terminal device 301 and terminal device 302 need to acquire file 1, and terminal device 305 can provide target file resources to terminal device 301 and terminal device 302. And because the locations of terminal device 301 and terminal device 302 are different, the times at which terminal device 301 and terminal device 302 enter the broadband beam coverage area are different. That is, the first satellite 201 establishes a broadband communication connection with the terminal device 301 at 3:02:33, and transmits the temporary storage file 1 to the terminal device 301; the first satellite 201 establishes a broadband communication connection with the terminal device 302 at 3:02:45 and transmits the staged file 1 to the terminal device 302. The foregoing will be described in detail later, and will not be repeated here.

Therefore, the technical effect that the target file resource can be sent to the first terminal equipment according to the preset time is achieved, and further the file transmission efficiency is improved is achieved.

Optionally, the operation of temporarily storing the target file resource by the first satellite includes: the first satellite determines the number of file acquisition requests corresponding to the target file resources, which are sent by the first terminal equipment; the first satellite judges that the target file resource is temporarily stored under the condition that the number of file acquisition requests corresponding to the target file resource is larger than a preset threshold value; and the first satellite judges that the file acquisition request corresponding to the target file resource is ignored when the number of the file acquisition requests corresponding to the target file resource is smaller than or equal to a preset threshold value.

Specifically, first, the first satellite 201 determines the number of received file acquisition requests corresponding to the target file resource. For example, the first satellite 201 receives the number of file acquisition requests corresponding to the file 1 of 5, the number of file acquisition requests corresponding to the file 2 of 4, and the number of file acquisition requests corresponding to the file 3 of 2.

Then, the first satellite 201 determines the number of file acquisition requests corresponding to the target file resources, compares the number of file acquisition requests with a preset threshold, and selects temporary storage of the target file resources or non-temporary storage of the target file resources according to the comparison result. For example, the preset threshold is 4.

In the case that the number of file acquisition requests is determined by the first satellite 201 to be greater than the preset threshold, it is indicated that the number of first terminal devices that need to acquire the target file resource is greater, and the target file resource is important, so that the target file resource needs to be temporarily stored, so that after the first terminal device establishes broadband communication connection with the first satellite 201, the target file resource is timely sent to the first terminal device.

In the case that the number of file acquisition requests is determined by the first satellite 201 to be smaller than the preset threshold, it is indicated that the number of first terminal devices that need to acquire the target file resource is smaller, and the target file resource is not very important, so that temporary storage of the target file resource is not required, and the storage space of the first satellite 201 is not occupied.

For example, the number of file acquisition requests corresponding to the file 1 is 5, which is greater than the preset threshold 4, so when the first satellite 201 acquires the file 1, the file 1 needs to be temporarily stored in the file temporary storage space. The number of file acquisition requests corresponding to the file 2 is 4 and equal to the preset threshold, so the first satellite 201 does not need to temporarily store the file, and ignores the file acquisition requests corresponding to the target file resource sent by the first terminal device. The number of file acquisition requests corresponding to the file 3 is 2, which is smaller than the preset threshold 4, so that the first satellite 201 does not need to temporarily store the file, and ignores the file acquisition request corresponding to the target file resource sent by the first terminal device.

Therefore, by further determining whether the operation of temporarily storing the target file resource in the file temporary storage space of the first satellite 201 is required according to the importance of the file acquisition request corresponding to the target file resource, the technical effect of saving the storage space of the first satellite 201 is achieved.

Optionally, the method further comprises: the first satellite determining that the plurality of first terminal devices are capable of establishing a broadband communication connection with the first satellite in the future, the operations comprising: the method comprises the steps that a first satellite receives a plurality of file acquisition requests which are sent by a plurality of first terminal devices and correspond to target file resources; the first satellite extracts the position information of the corresponding first terminal equipment from each file acquisition request; and the first satellite judges that the plurality of first terminal devices can establish broadband communication connection with the first satellite in the future according to the broadband coverage area, the ephemeris information and the position information of each first terminal device of the first satellite.

Specifically, fig. 9A is a schematic diagram of a plurality of second terminal devices sending target file resources to a first satellite 201 according to an embodiment of the present application. Fig. 9B is a schematic diagram of a first satellite 201 transmitting target file resources received from a plurality of second terminal devices to the first terminal device according to an embodiment of the present application. As shown with reference to fig. 9A and 9B, first, the first satellite 201 receives file acquisition requests corresponding to target file resources transmitted by a plurality of first terminal apparatuses. For example, the first satellite 201 receives the request for acquiring the file 1 transmitted by the terminal device 301 and the terminal device 302, the first satellite 201 receives the request for acquiring the file 2 transmitted by the terminal device 302, and the first satellite 201 receives the request for acquiring the file 3 transmitted by the terminal device 303.

Then, the first satellite 201 extracts the position information of each first terminal device from each file acquisition request. The position information of each first terminal device may be, for example, longitude and latitude coordinate information.

Further, the first satellite 201 determines whether each first terminal device can establish a broadband communication connection with the first satellite 201 in the future according to the broadband coverage area of the first satellite 201, the ephemeris information and the position information of each first terminal device. The ephemeris information of the first satellite 201 is track information indicating the running time and the running position of the first satellite 201. That is, the operation time and the operation position of the first satellite 201 are in one-to-one correspondence.

Therefore, if the ephemeris information of the first satellite 201 and the position information of each first terminal device are known, the distance information between each first terminal device and the center point of the broadband beam coverage area of the first satellite 201 can be known.

Whereas if the broadband coverage area of the first satellite 201 is known, the diameter length of the first satellite 201 may be determined. Further, based on the distance between each first terminal device and the center point of the broadband beam coverage area of the first satellite 201, and the diameter length of the first satellite 201, it can be determined whether each first terminal device is within the broadband beam coverage area of the first satellite 201.

Therefore, the above operation achieves the technical effect that whether the plurality of first terminal devices are in the broadband beam coverage area of the first satellite 201 can be judged, and further necessary conditions are provided for the first terminal devices to send the target file resources.

Optionally, the method further comprises: the first satellite creates file subscription information and transmits the file subscription information to the plurality of first terminal devices when it is determined that the plurality of first terminal devices are capable of establishing broadband communication connection with the first satellite in the future.

Specifically, the first satellite 201 creates file subscription information in a case where it is determined that a plurality of first terminal apparatuses are capable of establishing broadband communication connection with the first satellite 201 in the future. The file subscription information may be, for example, a file subscription table, as shown in table 4 above. The first satellite 201 then transmits the file subscription information to the respective first terminal devices. Thus, the plurality of first terminal apparatuses, after receiving the file subscription information transmitted by the first satellite 201, can make preparations for receiving the target file resources at predetermined times.

Optionally, the first satellite transmits the temporary stored target file resource to a plurality of first terminal devices through a broadband communication link, and the operations include: the first satellite determines priority relations of a plurality of first terminal devices, and sends target file resources to each first terminal device based on the priority relations, wherein the priority relations are used for indicating the sequence of the first terminal devices and the first satellite for establishing broadband communication connection.

Specifically, fig. 10B is a schematic diagram of a second terminal device sending a target file resource to a second satellite according to an embodiment of the present application. Fig. 10C is a schematic diagram of a second satellite transmitting a target file resource obtained from a second terminal device to a first terminal device according to an embodiment of the present application. Referring to fig. 10A, 10B, and 10C, after the first satellite 201 establishes broadband communication connection with the plurality of first terminal devices, the first satellite 201 needs to transmit the temporary target file resource to each first terminal device.

Thus, first, the first satellite 201 needs to determine the priority relationship of the plurality of first terminal apparatuses. The priority relationship of the first terminal devices is used to indicate the sequence of establishing broadband communication connection between each first terminal device and the first satellite 201. And wherein the factors affecting the priority relationship of the plurality of first terminal devices include: the first terminal device establishes a sequence of broadband communication connection with the first satellite 201, and the number of file acquisition requests corresponding to the target file resource. For example, table 5 shows the times at which the respective terminal apparatuses acquiring the file 1 establish broadband communication connection with the first satellite 201. Table 6 shows the times at which the respective terminal apparatuses acquiring the file 2 establish broadband communication connection with the first satellite 201.

TABLE 5

Document 1:

TABLE 6

Document 2:

referring to tables 5 and 6, the number of first terminal apparatuses corresponding to the file 1 is 5, and the number of first terminal apparatuses corresponding to the file 2 is 6. The priority of the plurality of first terminal apparatuses corresponding to the file 2 is greater than the priority of the plurality of first terminal apparatuses corresponding to the file 1.

Further, in table 6, when the time for the terminal device 302 to establish the broadband communication connection with the first satellite 201 is earliest, the priority of the terminal device 302 is the largest; the terminal device 308 establishes a broadband communication connection with the first satellite 201 at the latest time, and the priority of the terminal device 308 is the smallest.

Thus, in summary, the first satellite 201 transmits file 2 to terminal device 302, terminal device 304, terminal device 305, terminal device 306, terminal device 307, and terminal device 308, and then transmits file 1 to terminal device 301, terminal device 302, terminal device 303, terminal device 304, and terminal device 305.

Therefore, the technical effect of scheduling the target file resources sent to each first terminal device is achieved by determining the priority relation of the plurality of first terminal devices and sequentially sending the target file resources to each first terminal device based on the priority relation.

Optionally, the operation of the first satellite determining that the first terminal device is unable to establish a broadband communication connection with the first satellite in the future includes: the first satellite extracts the position information of the first terminal device from the file acquisition request; and the first satellite establishes second response information according to the broadband coverage area of the first satellite, the ephemeris information and the position information of the first terminal equipment, and sends the second response information to the first terminal equipment when the first terminal equipment cannot establish broadband communication connection with the first satellite in the future.

In particular, the first terminal device may also be unable to establish a broadband communication connection with the first satellite 201.

First, the first satellite 201 extracts the location information of the first terminal device from the file acquisition request. The location information of the first terminal device may be latitude and longitude information, for example.

Then, the first satellite 201 determines whether the first terminal device is capable of establishing a broadband communication connection with the first satellite 201 based on the broadband coverage area of the first satellite 201, the ephemeris information, and the location information of the first terminal device. If the first terminal device is located a distance from the center point of the broadband beam coverage area that is greater than the diameter length of the broadband beam coverage area of the first satellite 201, the first terminal device is not located within the broadband beam coverage area.

Further, the position information of the first terminal device is compared with the ephemeris information, and if the position information of the first terminal device relative to the first satellite 201 is opposite to the moving direction of the first satellite 201, it is indicated that the first terminal device is unlikely to be located in the broadband beam coverage area of the first satellite 201 in the future.

In case the first satellite 201 determines that the first terminal device is not likely to be in the broadband beam coverage area of the first satellite 201 in the future, the second response information is transmitted to the first terminal device. Wherein the second response information is used to indicate that the first satellite 201 cannot establish a broadband communication connection with the first terminal device in the future.

Optionally, the method further comprises: the second satellite receives a file acquisition request for acquiring a target file resource, which is sent by the first terminal equipment, at a third track position through a narrow-band communication link; the second satellite sends a file acquisition request for acquiring target file resources to the second terminal equipment through a narrow-band communication link, wherein the second terminal equipment has established broadband communication connection with the second satellite; the second terminal equipment sends third response information corresponding to the file acquisition request to the second satellite under the condition that the target file resource is determined to be deployed; the second satellite acquires target file resources from the second terminal equipment through a broadband communication link, and temporarily stores the target file resources under the condition that the first terminal equipment and the second terminal equipment are not simultaneously connected with the second satellite in a broadband communication mode; and the second satellite transmits the temporarily stored target file resource to the first terminal device through a broadband communication link under the condition that the second satellite judges that the first terminal device has established broadband communication connection with the second satellite at the fourth track position.

Specifically, in the case where the first terminal device receives the second response information transmitted by the first satellite 201, a narrowband communication connection is established with the second satellite, and a file acquisition request for acquiring the target file resource is transmitted to the second satellite through the narrowband communication link.

Then, the second satellite receives a file acquisition request for acquiring the target file resource, which is transmitted by the first terminal device, at the third track position through the narrowband communication link.

Further, the second satellite transmits a file acquisition request for acquiring the target file resource to the second terminal device through the narrowband communication link. And at this point the second satellite has established a broadband communication connection with the second terminal device.

In addition, the second terminal device sends third response information to the second satellite under the condition that the target file resource is determined to be deployed. Wherein the third response information is information for indicating that the target file resource is deployed.

Then, the second satellite acquires the target file resource from the second terminal device through the broadband communication link, and temporarily stores the target file resource under the condition that the first terminal device and the second terminal device are not simultaneously connected with the second satellite in broadband communication.

Finally, the second satellite sends the temporarily stored target file resource to the first terminal device through the broadband communication link under the condition that the second satellite judges that the first terminal device has established broadband communication connection with the second satellite at the fourth track position.

Therefore, the technical effect that the first terminal equipment can be ensured to normally acquire the target file resource is achieved through the operation.

According to another aspect of the embodiments of the present application, there is also provided a system for temporarily storing shared files based on satellites, including: the terminal interaction module of the first satellite is used for receiving a file acquisition request sent by first terminal equipment for acquiring target file resources through a narrow-band communication link at a first track position; the terminal interaction module of the first satellite is used for sending a file acquisition request for acquiring target file resources to the second terminal equipment through a narrow-band communication link, wherein the second terminal equipment has established broadband communication connection with the first satellite; the terminal interaction module of the first satellite is used for acquiring target file resources from the second terminal equipment through a broadband communication link, and temporarily storing the target file resources by the file temporary storage space under the condition that the position determining module determines that the first terminal equipment and the second terminal equipment do not establish broadband communication connection with the first satellite at the same time; and the position determining module of the first satellite is used for transmitting the temporarily stored target file resource to the first terminal equipment through the broadband communication link by utilizing the file sharing module and the terminal interaction module under the condition that the second orbit position judges that the first terminal equipment has established broadband communication connection with the first satellite.

Specifically, referring to fig. 6, the first satellite 201 is capable of interacting with the first terminal device and the second terminal device through the terminal interaction module, so that the terminal interaction module of the first satellite 201 receives a file acquisition request for acquiring a target file resource, which is transmitted by the first terminal device, at the first orbit position through the narrowband communication link.

Then, the first satellite 201 transmits the file acquisition request to the second terminal device through the terminal interaction module. The second terminal device responds to the request and determines whether the target file resource is deployed. The second terminal device sends the first response information to the first satellite 201 through the satellite interaction module under the condition that the target file resource is deployed inside. The first response information may be, for example, information for determining that the target file resource is deployed.

Further, the terminal interaction module of the first satellite 201 obtains the target file resource from the second terminal device through the broadband communication link. And the first satellite 201 determines the location information of the first terminal device and the location information of the second terminal device from the file acquisition request transmitted by the first terminal device and the first response information transmitted by the second terminal device, respectively, using the location determining module.

Then, in the case where the position determining module in the first satellite 201 determines that the first terminal device and the second terminal device do not establish broadband communication connection with the first satellite 201 at the same time, the target file resource is temporarily stored in the file temporary storage space.

Finally, in the case that the position determining module in the first satellite 201 determines that the first terminal device has established a broadband communication connection with the first satellite 201 at the second orbital position, the file sharing module is utilized to share the target file resource, and the terminal interaction module sends the temporarily stored target file resource to the first terminal device based on the broadband communication link.

Therefore, the first satellite 201 receives the file acquisition request sent by the first terminal device through the narrowband communication link, temporarily stores the target file resource acquired from the second terminal device in the first terminal device until the operation of sending the target file resource to the first terminal device when broadband communication connection is established with the first terminal device, thereby achieving the technical effects of greatly shortening the time for transmitting the file and improving the file transmission efficiency. And further, the technical problems of how to transmit files for terminal equipment by utilizing the characteristics of satellite broadband communication and the characteristics of narrowband communication in the prior art are solved, so that the waste of resources is reduced and the file transmission efficiency is improved.

Further, referring to fig. 3, according to a third aspect of the present embodiment, there is provided a storage medium. The storage medium includes a stored program, wherein the method of any one of the above is performed by a processor when the program is run.

Thus, according to the present embodiment, the first satellite 201 receives the file acquisition request sent by the first terminal device through the narrowband communication link, and temporarily stores the target file resource acquired from the second terminal device inside until the operation of sending the target file resource to the first terminal device when the broadband communication connection is established with the first terminal device, thereby achieving the technical effects of greatly shortening the time for transmitting the file and improving the file transmission efficiency. And further, the technical problems of how to transmit files for terminal equipment by utilizing the characteristics of satellite broadband communication and the characteristics of narrowband communication in the prior art are solved, so that the waste of resources is reduced and the file transmission efficiency is improved.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present invention. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present invention.

From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.

The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. A method for temporarily storing shared files based on satellites, comprising the steps of:

the method comprises the steps that a first satellite receives a file acquisition request which is sent by first terminal equipment and used for acquiring target file resources through a narrow-band communication link at a first orbit position;

the first satellite sends a file acquisition request for acquiring the target file resource to second terminal equipment through a narrow-band communication link, wherein the second terminal equipment has established broadband communication connection with the first satellite;

the second terminal equipment sends first response information corresponding to the file acquisition request to the first satellite under the condition that the target file resource is determined to be deployed;

the first satellite acquires the target file resource from the second terminal equipment through a broadband communication link, and temporarily stores the target file resource under the condition that the first terminal equipment and the second terminal equipment are not simultaneously connected with the first satellite in a broadband communication mode;

Transmitting a temporary target file resource to a first terminal device through a broadband communication link in the case that the first terminal device determines that the first terminal device has established a broadband communication connection with the first satellite at a second orbital location, wherein

Further comprises: an operation of a first satellite determining that the first terminal device is capable of establishing a broadband communication connection with the first satellite in the future, and wherein the first satellite determining that the first terminal device is capable of establishing a broadband communication connection with the first satellite in the future, comprising:

the first satellite extracts the position information of the first terminal device from the file acquisition request;

a first satellite judges that the first terminal equipment can establish the broadband communication connection with the first satellite in future according to the broadband coverage area, the ephemeris information and the position information of the first terminal equipment of the first satellite, wherein

Further comprises:

a first satellite creates file subscription information and transmits the file subscription information to the first terminal device in a case that the first terminal device can establish the broadband communication connection with the first satellite in the future, wherein the file subscription information is used for indicating the time when the first satellite transmits the target file resource to the first terminal device,

Further comprises: an operation in which a first satellite determines that the first terminal device is unable to establish a broadband communication connection with the first satellite in the future, and wherein the first satellite determines that the first terminal device is unable to establish a broadband communication connection with the first satellite in the future, comprising:

the first satellite receives a plurality of file acquisition requests corresponding to the target file resources, which are sent by a plurality of first terminal devices;

the first satellite extracts the position information of the corresponding first terminal equipment from each file acquisition request;

a first satellite determining that the plurality of first terminal devices are capable of establishing the broadband communication connection with the first satellite in the future according to the broadband coverage area, ephemeris information and position information of each first terminal device of the first satellite, wherein

Further comprises:

the second satellite receives a file acquisition request which is sent by the first terminal equipment and used for acquiring the target file resource through a narrow-band communication link at a third track position;

the second satellite sends a file acquisition request for acquiring the target file resource to the second terminal equipment through a narrow-band communication link, wherein the second terminal equipment has established the broadband communication connection with the second satellite;

The second terminal equipment sends third response information corresponding to the file acquisition request to the second satellite under the condition that the target file resource is determined to be deployed;

the second satellite acquires the target file resource from the second terminal equipment through a broadband communication link, and temporarily stores the target file resource under the condition that the first terminal equipment and the second terminal equipment are not simultaneously connected with the second satellite in a broadband communication mode; and

and the second satellite sends the temporarily stored target file resource to the first terminal equipment through a broadband communication link under the condition that the second satellite judges that the first terminal equipment has established broadband communication connection with the second satellite at the fourth track position.

2. The method of claim 1, wherein the operation of the first satellite hosting the target file resource comprises:

the first satellite determines the number of file acquisition requests corresponding to the target file resources, which are sent by the first terminal equipment;

the first satellite judges that the target file resource is temporarily stored under the condition that the number of file acquisition requests corresponding to the target file resource is larger than a preset threshold value; and

And the first satellite judges that the file acquisition request corresponding to the target file resource is ignored when the number of the file acquisition requests corresponding to the target file resource is smaller than or equal to a preset threshold value.

3. The method as recited in claim 1, further comprising: a first satellite determining a plurality of first terminal devices to be able to establish a broadband communication connection with the first satellite in the future, the operations comprising:

the first satellite extracts the position information of the corresponding first terminal equipment from each file acquisition request; and

the first satellite judges that the plurality of first terminal devices can establish the broadband communication connection with the first satellite in future according to the broadband coverage area, the ephemeris information and the position information of each first terminal device of the first satellite.

4. A method according to claim 3, further comprising: the first satellite creates file subscription information and sends the file subscription information to the plurality of first terminal devices under the condition that the plurality of first terminal devices can establish the broadband communication connection with the first satellite in the future; and

Further comprises: the first satellite transmits the temporarily stored target file resource to the plurality of first terminal devices through a broadband communication link, and the operations include:

the first satellite determines priority relationships of the plurality of first terminal devices, and sends the target file resources to the first terminal devices based on the priority relationships, wherein the priority relationships are used for indicating the sequence of the first terminal devices and the first satellite for establishing the broadband communication connection.

5. A storage medium comprising a stored program, wherein the method of any one of claims 1 to 4 is performed by a processor when the program is run.

6. A satellite-based temporary storage shared file system, comprising: terminal interaction module, position determination module, file temporary storage space and file sharing module, wherein

The terminal interaction module of the first satellite receives a file acquisition request for acquiring a target file resource, which is sent by first terminal equipment, at a first orbit position through a narrow-band communication link;

the terminal interaction module of the first satellite sends a file acquisition request for acquiring the target file resource to second terminal equipment through a narrow-band communication link, wherein the second terminal equipment has established broadband communication connection with the first satellite;

The terminal interaction module of the first satellite acquires the target file resource from the second terminal equipment through a broadband communication link, and temporarily stores the target file resource in a file temporary storage space under the condition that the position determination module judges that the first terminal equipment and the second terminal equipment do not establish broadband communication connection with the first satellite at the same time;

a location determining module of a first satellite sends temporary stored target file resources to the first terminal device by using a file sharing module and a terminal interaction module and through a broadband communication link under the condition that a second orbit location determines that the first terminal device has established broadband communication connection with the first satellite, wherein

The position determining module of the first satellite extracts the position information of the first terminal device from the file acquisition request;

a terminal interaction module of a first satellite determines that the first terminal equipment can establish the broadband communication connection with the first satellite in the future according to the broadband coverage area, ephemeris information and position information of the first terminal equipment of the first satellite, wherein

The terminal interaction module of the first satellite creates file subscription information and transmits the file subscription information to the first terminal device, wherein the file subscription information is used for indicating the time when the first satellite transmits the target file resource to the first terminal device,

The terminal interaction module of the first satellite receives a plurality of file acquisition requests corresponding to the target file resources, which are sent by a plurality of first terminal devices;

the position determining module of the first satellite extracts the position information of the corresponding first terminal equipment from each file acquisition request;

the terminal interaction module of the first satellite determines that the plurality of first terminal devices can establish the broadband communication connection with the first satellite in future according to the broadband coverage area, the ephemeris information and the position information of each first terminal device of the first satellite, wherein

A terminal interaction module of a second satellite receives a file acquisition request which is sent by the first terminal equipment and used for acquiring the target file resource through a narrow-band communication link at a third track position;

the terminal interaction module of the second satellite sends a file acquisition request for acquiring the target file resource to the second terminal equipment through a narrow-band communication link, wherein the second terminal equipment has established the broadband communication connection with the second satellite;

the file operation module of the second terminal equipment sends third response information corresponding to the file acquisition request to the second satellite through the satellite interaction module under the condition that the target file resource is determined to be deployed;

The terminal interaction module of the second satellite acquires the target file resource from the second terminal equipment through a broadband communication link, and temporarily stores the target file resource into a file storage space under the condition that the first terminal equipment and the second terminal equipment are judged not to establish broadband communication connection with the second satellite at the same time;

and the position determining module of the second satellite sends the temporarily stored target file resource to the first terminal equipment through a broadband communication link under the condition that the fourth track position judges that the first terminal equipment has established broadband communication connection with the second satellite.