CN116261181B - Data transmission method, device, equipment and storage medium based on satellite signals - Google Patents
Data transmission method, device, equipment and storage medium based on satellite signals Download PDFInfo
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- CN116261181B CN116261181B CN202310539684.1A CN202310539684A CN116261181B CN 116261181 B CN116261181 B CN 116261181B CN 202310539684 A CN202310539684 A CN 202310539684A CN 116261181 B CN116261181 B CN 116261181B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the application provides a data transmission method, device and equipment based on satellite signals and a storage medium, wherein the data transmission method based on the satellite signals comprises the following steps: and when the storage space is insufficient and the satellite coverage is not available, sending a first notification message to the user terminal, wherein the first notification message is used for notifying the user terminal to send uplink data to the relay terminal. And acquiring temporary stored uplink data from the relay terminal, and transmitting the uplink data to the satellite when the satellite coverage exists. In this embodiment, in order to reduce the possibility of data overflow and loss, the knapsack base station may send a notification message to the user terminal when the storage space is insufficient and there is no satellite coverage, so that the relay terminal may temporarily store uplink data to reduce the data storage pressure of the knapsack base station, and then the knapsack base station obtains the temporarily stored uplink data from the relay terminal, and when there is satellite coverage, may transmit the uplink data to the satellite to implement uplink data transmission between the user terminal and the core network element.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a satellite signal-based data transmission method, device and equipment and a storage medium.
Background
In remote mountain areas and desert areas, a knapsack base station is generally utilized to establish connection with a satellite through wireless signals, and then the knapsack base station is connected with a core network element on the ground through the satellite, so that a traditional mode that the base station is connected with the core network element through an optical fiber is replaced, and the communication requirement is conveniently and rapidly met.
Since the satellites are mobile, the coverage of the satellite network varies accordingly. Thus, during the communication process, there are two cases where the knapsack base station has satellite network coverage and no satellite network coverage. Under the condition of satellite network coverage, the knapsack base station can send uplink data from the user terminal to the core network element through the satellite, so that uplink data transmission between the user terminal and the core network element is realized. Under the condition of no satellite network coverage, uplink data can still be transmitted between the user terminal and the knapsack base station through the wireless network, but the knapsack base station cannot transmit the uplink data to the core network element through the satellite link.
In the related art, there are two processing methods for uplink data generated by a user terminal under the condition of no satellite network coverage: the first is to inform the user terminal that no satellite coverage is currently used for temporarily not transmitting uplink data to the knapsack base station; the second is that the base station temporarily stores the uplink data and forwards the uplink data to the core network element when the satellite coverage exists. The first processing mode needs to change the transmission modes of a large number of user terminals, which is too high in cost and inconvenient to realize; the second processing method is likely to cause the capacity required for uplink data to exceed the storage space of the base station, so that data overflows and is lost.
Disclosure of Invention
In view of the above, embodiments of the present application provide a method, apparatus, device, and storage medium for transmitting data based on satellite signals, which overcome the above problems or at least partially solve the above problems that may cause data overflow and loss.
In a first aspect of an embodiment of the present application, a data transmission method based on a satellite signal is provided, including: when the storage space is insufficient and satellite coverage is not available, a first notification message is sent to the user terminal, the first notification message is used for notifying the user terminal to send uplink data to the relay terminal, the relay terminal obtains temporary stored uplink data, and when satellite coverage is available, the uplink data is transmitted to the satellite.
In this embodiment, in order to reduce the possibility of data overflow and loss, the knapsack base station may send a first notification message to the user terminal when the storage space is insufficient and there is no satellite coverage, where the first notification message is used to notify the user terminal to send uplink data to the relay terminal, so that the relay terminal may temporarily store the uplink data to reduce the data storage pressure of the knapsack base station, and then the knapsack base station obtains the temporarily stored uplink data from the relay terminal, and when there is satellite coverage, may transmit the uplink data to the satellite to implement uplink data transmission between the user terminal and the core network element.
In an alternative way, before sending the first notification message to the user terminal, the method includes: and acquiring the storage capacity of the target terminal, and selecting the relay terminal from the target terminal according to the storage capacity.
In this embodiment, before the knapsack base station informs the user terminal to temporarily store the uplink data to the relay terminal, the target terminal with higher storage capacity can be selected as the relay terminal, so that the relay terminal can temporarily store more uplink data.
In an alternative manner, selecting a relay terminal from target terminals according to a capability of the target terminal includes: and sending temporary storage requests to a preset number of target terminals, receiving temporary storage responses sent by the preset number of target terminals, and determining the relay terminal according to the content contained in the temporary storage responses.
In an alternative manner, when the content of the temporary storage response is the approval temporary storage, a first notification message is sent to the user terminal, including: and carrying the first terminal identification of the relay terminal in a first notification message and sending the first terminal identification to the user terminal so that the user terminal sends uplink data to the relay terminal corresponding to the first terminal identification.
In an optional manner, the temporary storage request includes a first data capacity of uplink data which needs auxiliary temporary storage of the target terminal, and the temporary storage response includes a second data capacity of uplink data which can be temporarily stored by the target terminal; or the temporary storage request comprises a first time length for auxiliary temporary storage of the target terminal, and correspondingly, the temporary storage response comprises a second time length for uplink data which can be temporarily stored by the target terminal; or the temporary storage request comprises a first data capacity and a first duration, and the temporary storage response comprises a second data capacity and a second duration.
In this embodiment, the temporary storage response may at least include a second data capacity and/or a second duration of uplink data that can be temporarily stored by the relay terminal, so the knapsack base station may determine, according to the received temporary storage response, the relay terminal and the capacity and duration of uplink data that can be temporarily stored by the relay terminal.
In an alternative manner, the acquiring the temporary uplink data from the relay terminal includes: and receiving uplink data transmitted by the relay terminal at a transmission time point, wherein the transmission time point is determined based on the temporary storage request or the temporary storage response. Or, sending a transmission request to the relay terminal, wherein the transmission request at least comprises data information of uplink data requested to be transmitted, and receiving the uplink data transmitted by the relay terminal according to the data information in the transmission request.
In this embodiment, the relay terminal may transmit uplink data at a transmission time point, or may transmit uplink data according to a transmission request of the knapsack base station, so that the knapsack base station may transmit uplink data to the satellite in time.
In an optional manner, after selecting the relay terminal from the target terminals according to the capability, the data transmission method based on the satellite signal provided in the embodiment of the application further includes: the state of the storage space of each relay terminal is acquired, second notification information is sent to the relay terminal with the storage space in a saturated state, and the second notification information is used for notifying the relay terminal with the storage space in the saturated state to transmit part or all of temporary stored uplink data to the knapsack base station. Or sending third notification information to the user terminal, wherein the third notification information comprises a second terminal identifier of the relay terminal with the storage space in an idle state, and the second terminal identifier is used for notifying the user terminal to send uplink data to the relay terminal corresponding to the second terminal identifier.
In this embodiment, the knapsack base station may obtain the state of the storage space of each relay terminal in the preset time period, and send the second notification information to the relay terminal with the storage space in the saturated state, or send the third notification information to the user terminal, so that the possibility that uplink data overflows and is lost in the relay terminal may be reduced.
In a second aspect of the embodiments of the present application, a data transmission method based on a satellite signal is provided, including: and receiving a temporary storage request sent by the knapsack base station, and sending a temporary storage response to the knapsack base station based on the temporary storage request. And when the temporary storage response content is the approval temporary storage, receiving and temporarily storing the uplink data sent by the user terminal. And sending the temporarily stored uplink data to the knapsack base station so that the knapsack base station transmits the uplink data to the satellite when the knapsack base station has satellite coverage.
In an alternative way, sending the buffered uplink data to the knapsack base station includes: and transmitting the uplink data to the knapsack base station at the transmission time point. Wherein the transmission time point is determined based on the scratch request or the transmission time point is determined based on the scratch response. Or transmitting the uplink data according to the transmission request sent by the knapsack base station.
In a third aspect of the embodiments of the present application, a data transmission method based on a satellite signal is provided, including: and receiving a first notification message sent by the knapsack base station, wherein the first notification message comprises a first terminal identifier and is used for notifying the user terminal to send uplink data to the relay terminal corresponding to the first terminal identifier. And sending the uplink data to the relay terminal according to the first notification message.
In a fourth aspect of the embodiments of the present application, there is provided a data transmission device based on satellite signals, including: and the sending module is used for sending a first notification message to the user terminal when the storage space is insufficient and the satellite coverage is not available, wherein the first notification message is used for notifying the user terminal to send uplink data to the relay terminal. And the acquisition module is used for acquiring the temporarily stored uplink data from the relay terminal. And the transmission module is used for transmitting the uplink data acquired by the acquisition module to the satellite when the satellite is covered.
In a fifth aspect of the embodiments of the present application, there is provided a data transmission device based on satellite signals, including: the first receiving module is used for receiving the temporary storage request sent by the knapsack base station. The first sending module is used for sending temporary storage response to the knapsack base station based on the temporary storage request received by the first receiving module. And the second receiving module is used for receiving and temporarily storing the uplink data sent by the user terminal when the temporary storage response sent by the first sending module is of the temporary storage agreement. And the second sending module is used for sending the temporarily stored uplink data to the knapsack base station so that the knapsack base station can transmit the uplink data to the satellite when the knapsack base station has satellite coverage.
In a sixth aspect of the embodiments of the present application, there is provided a data transmission device based on satellite signals, including: the receiving module is used for receiving a first notification message which is sent by the knapsack base station, wherein the first notification message comprises a first terminal identifier and is used for notifying the user terminal to send uplink data to the relay terminal corresponding to the first terminal identifier. And the sending module is used for sending the uplink data to the relay terminal according to the first notification message received by the receiving module.
A seventh aspect of the embodiments of the present application provides a computer device, including a memory and a processor, where the memory stores a computer program, and the processor implements the satellite signal based data transmission method as provided in the first aspect of the present application, or implements the satellite signal based data transmission method as provided in the second aspect of the present application, or implements the satellite signal based data transmission method as provided in the third aspect of the present application when executing the computer program.
An eighth aspect of the embodiments of the present application provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements a satellite signal based data transmission method as provided in the first aspect of the present application, or implements a satellite signal based data transmission method as provided in the second aspect of the present application, or implements a satellite signal based data transmission method as provided in the third aspect of the present application.
The foregoing description is only an overview of the technical solutions of the embodiments of the present application, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present application can be more clearly understood, and the following detailed description of the present application will be presented in order to make the foregoing and other objects, features and advantages of the embodiments of the present application more understandable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a data transmission method based on satellite signals according to some embodiments of the present application.
Fig. 2 is a flowchart of another data transmission method based on satellite signals according to some embodiments of the present application.
Fig. 3 is a flowchart of another data transmission method based on satellite signals according to some embodiments of the present application.
Fig. 4 is a schematic structural diagram of a data transmission device based on satellite signals according to some embodiments of the present application.
Fig. 5 is a schematic structural diagram of another data transmission device based on satellite signals according to some embodiments of the present application.
Fig. 6 is a schematic structural diagram of another data transmission device based on satellite signals according to some embodiments of the present application.
Fig. 7 is a schematic structural diagram of a computer device according to some embodiments of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the drawings are intended to cover, but not exclude, other matters. The word "a" or "an" does not exclude the presence of a plurality.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Furthermore, the terms first, second and the like in the description and in the claims of the present application or in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order, and may be used to expressly or implicitly include one or more such features.
In the description of the present application, unless otherwise indicated, the meaning of "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two).
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., the terms "connected" or "coupled" of a mechanical structure may refer to a physical connection, e.g., the physical connection may be a fixed connection, e.g., by a fastener, such as a screw, bolt, or other fastener; the physical connection may also be a detachable connection, such as a snap-fit or snap-fit connection; the physical connection may also be an integral connection, such as a welded, glued or integrally formed connection. "connected" or "connected" of circuit structures may refer to physical connection, electrical connection or signal connection, for example, direct connection, i.e. physical connection, or indirect connection through at least one element in the middle, so long as circuit communication is achieved, or internal communication between two elements; signal connection may refer to signal connection through a medium such as radio waves, in addition to signal connection through a circuit. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
An embodiment of the present application provides a data transmission method based on a satellite signal, please refer to fig. 1, and fig. 1 is a flowchart of the data transmission method based on the satellite signal provided in some embodiments of the present application. In the embodiment of the application, the data transmission method based on the satellite signals can be specifically executed by the knapsack base station.
As shown in fig. 1, the data transmission method based on satellite signals provided in the embodiment of the present application includes the following steps 101 to 103:
step 101, when the storage space is insufficient and satellite coverage is not available, a first notification message is sent to the user terminal.
The first notification message is used for notifying the user terminal to send uplink data to the relay terminal. The uplink data refers to data transmitted from the user terminal to the knapsack base station, and this data is data that needs to be transmitted from the knapsack base station to the satellite. In practical application, the satellite is continuously moving, when the knapsack base station is not covered by the satellite currently, the knapsack base station cannot transmit the uplink data received by the knapsack base station from the user terminal to the satellite, and the uplink data can be temporarily stored in the knapsack base station. However, the storage space of the knapsack base station is limited, and if the number of the user terminals is large, the generated uplink data amount is large, and the data overflow and loss may be caused by exceeding the storage space of the knapsack base station. Therefore, in the embodiment of the present application, when the storage space of the knapsack base station is insufficient and there is no satellite coverage, the first notification message may be sent to the user terminal, so that the relay terminal temporarily stores uplink data. For example, the relay terminal may be a user equipment. The knapsack base station and the relay terminal can be connected through optical fibers or microwaves.
Optionally, the knapsack base station may also send a first notification message to the user terminal to notify the user terminal to send the uplink data to the relay terminal under the condition that the user terminal is about to transmit a large amount of uplink data, so as to provide a storage space for the uplink data to be received.
Further, there is an application scenario, that is, the knapsack base station and the core network element agree in advance that uplink data is not transmitted to the core network element in a period of time covered by a satellite, and at this time, the knapsack base station may also send a first notification message to the user terminal to notify the user terminal to send the uplink data to the relay terminal for temporary storage.
And 102, acquiring temporary stored uplink data from the relay terminal.
In this step, the knapsack base station may actively acquire temporary uplink data from the relay terminal, and the uplink data may also be actively sent by the relay terminal to the knapsack base station.
Specifically, in an application scenario in which uplink data is actively sent to a knapsack base station by a relay terminal, the knapsack base station may receive the uplink data transmitted by the relay terminal at a transmission time point. The transmission time point may be determined by the knapsack base station, or by the relay terminal.
In the application scenario that the knapsack base station actively acquires temporary stored uplink data from the relay terminal, the knapsack base station can send a transmission request to the relay terminal when the relay terminal is required to transmit the uplink data, so that the relay terminal transmits the required uplink data to the knapsack base station. The transmission request at least comprises data information of uplink data requested to be transmitted, and the knapsack base station receives the uplink data transmitted by the relay terminal according to the data information in the transmission request.
The knapsack base station needs to send a transmission request before the transmission time point, requests to transmit uplink data, and cannot send the transmission request after the transmission time point. If the transmission time point is not appointed, the relay terminal can send a fourth notification message to the knapsack base station after receiving the uplink data needing temporary storage, and the knapsack base station can send a transmission request to the relay terminal at any time after receiving the fourth notification message, so that the relay terminal can transmit the temporary stored uplink data.
Further, if the knapsack base station neither agrees with the relay terminal to transmit a time point nor transmits a transmission request to the relay terminal, the relay terminal may actively transmit the temporary uplink data to the knapsack base station, or delete the temporary uplink data. The present embodiment is not particularly limited thereto.
It should be noted that the transmission time point or the time point of sending the transmission request in the above embodiment should be before the time point of the transmission delay budget of the uplink data determined by the knapsack base station.
Step 103, transmitting uplink data to the satellite when the satellite coverage exists.
When the satellite is covered, the knapsack base station can communicate with the satellite, and the uplink data temporarily stored in the time period without the satellite coverage is transmitted to the satellite, wherein the uplink data temporarily stored in the time period without the satellite coverage comprises the uplink data temporarily stored in the knapsack base station and the uplink data temporarily stored by the relay terminal and transmitted to the knapsack base station.
In this embodiment, when the storage space of the knapsack base station is insufficient and there is no satellite coverage, the user terminal may be notified to send uplink data to the relay terminal for temporary storage, so that the possibility of data overflow and loss in the knapsack base station may be reduced. And then, the knapsack base station can receive the uplink data transmitted by the relay terminal, and when the satellite is covered, the uplink data is transmitted to the satellite so as to realize uplink data transmission between the user terminal and the core network element.
In one embodiment, in order to facilitate selection of a suitable relay terminal for temporarily storing uplink data, before sending the first notification message to the user terminal, the data transmission method based on satellite signals in this embodiment may further include: and acquiring the storage capacity of the target terminal. And selecting a relay terminal from the target terminals according to the storage capacity.
Specifically, selecting a relay terminal from target terminals according to the energy storage capability includes: and sending temporary storage requests to a preset number of target terminals. And receiving temporary storage responses sent by a preset number of target terminals, and determining the relay terminal according to the content contained in the temporary storage responses.
For example, the target terminals include a first target terminal, a second target terminal, a third target terminal, and a fourth target terminal. The storage capacity of the first target terminal is larger than that of the second target terminal, the storage capacity of the second target terminal is larger than that of the third target terminal, and the storage capacity of the third target terminal is larger than that of the fourth target terminal. Assuming that the preset number of the target terminals is 2, the knapsack base station may send a temporary storage request to the first target terminal and the second target terminal, and receive temporary storage responses sent by the first target terminal, for example, the temporary storage response sent by the first target terminal is a temporary storage agreement, and the temporary storage response sent by the second target terminal is a temporary storage incapability, and then the first target terminal may be determined to be a relay terminal.
After the first target terminal is determined to be the relay terminal, the knapsack base station can inform the user terminal to send uplink data to the first target terminal for temporary storage through a first notification message. Specifically, the knapsack base station sending a first notification message to the user terminal includes: and carrying the first terminal identification of the relay terminal in a first notification message and sending the first terminal identification to the user terminal so that the user terminal sends uplink data to the relay terminal corresponding to the first terminal identification.
In one embodiment, the temporary storage request includes a first data capacity of uplink data that needs auxiliary temporary storage of the target terminal, and the temporary storage response includes a second data capacity of uplink data that can be temporarily stored by the target terminal; or the temporary storage request comprises a first time length for auxiliary temporary storage of the target terminal, and correspondingly, the temporary storage response comprises a second time length for uplink data which can be temporarily stored by the target terminal; or the temporary storage request comprises a first data capacity and a first duration, and the temporary storage response comprises a second data capacity and a second duration.
It is noted that the second data capacity is less than or equal to the first data capacity and the second duration is less than or equal to the first duration.
For example, assuming that the first data capacity included in the scratch request sent by the knapsack base station to the target terminal is 70 Megabytes (MB) and the first time period is 40 seconds(s), when the scratch response sent by the target terminal to the knapsack base station is to agree to scratch, the scratch response may include: the second data capacity of the temporary uplink data is 70MB, and the second time length of the temporary uplink data is 40s; alternatively, the second data capacity of the temporary uplink data may be 60MB, and the second duration of the temporary uplink data may be 40s; alternatively, the second data capacity of the temporary uplink data may be 70MB, and the second duration of the temporary uplink data may be 20s; alternatively, the temporary storage response sent by the target terminal may not be temporary.
In one embodiment, the request for temporary storage may further include a request for temporary storage start time and a request for temporary storage end time. Correspondingly, the temporary storage response can also comprise an actual temporary storage starting time and an actual temporary storage ending time. When the relay terminal can meet the temporary storage request of the knapsack base station, the knapsack base station informs the relay terminal of the transmission time point, and the transmission time point is the request temporary storage ending time in the embodiment; when the relay terminal cannot meet the temporary storage request of the knapsack base station, the transmission time point is determined by the relay terminal, and the transmission time point is the actual temporary storage ending time in the embodiment.
It should be noted that the actual scratch start time may be the same as the request scratch start time, or may be later than the request scratch start time. The actual temporary storage end time may be the same as the request temporary storage end time or may be earlier than the request temporary storage end time.
In one embodiment, if the knapsack base station needs the relay terminal to temporarily store 70MB of uplink data from 2023, 1 month, 28 days, 9 hours, 10 minutes to 2023, 1 month, 28 days, 10 minutes, the existing two relay terminals may temporarily store the uplink data. Wherein, one relay terminal can temporarily store 70MB of uplink data from 2023, 1, 28, 9, 10 to 2023, 1, 28, 9, 40, and another relay terminal can temporarily store 70MB of uplink data from 2023, 1, 28, 9, 30 to 2023, 1, 28, 10, and then the knapsack base station can temporarily store 70MB of uplink data from 2023, 1, 28, 9, 10 to 2023, 1, 28, 9, 40, and then from 2023, 1, 28, 9, 40 to 2023, 1, 28, 10.
If the temporary storage request does not include the request temporary storage start time, the temporary storage is considered to be needed to be immediately assisted, and if the temporary storage request does not include the request temporary storage end time, the knapsack base station can be considered to send a transmission request to the relay terminal at any subsequent time, so that the relay terminal transmits the temporary stored uplink data.
In one embodiment, the request for temporary storage sent by the knapsack base station to the same target terminal may include a request for temporary storage of multiple batches of uplink data, in this embodiment, 3 batches are taken as an example. For example, the capacity of the first batch of uplink data for temporary storage is 50MB, and the duration is 40s; the capacity of the second batch of uplink data for temporary storage is 40 MB, and the duration is 30s; the capacity of the third batch of uplink data requiring temporary storage is 30MB, and the duration is 60s. Accordingly, the content of the temporary storage response sent by the target terminal according to the storage capability of the target terminal may be that the first batch of uplink data of 50MB cannot be temporarily stored, the second batch of uplink data 30s of 40 MB can be temporarily stored, and the third batch of uplink data 30s of 30MB can be temporarily stored. Alternatively, the temporary storage response sent by the target terminal according to its own storage capability may be capable of temporarily storing the uplink data 40s of the first batch 50MB, temporarily storing the uplink data 30s of the second batch 40 MB, temporarily storing the uplink data 30s of the third batch 30MB, and so on.
In practical application, when the temporary storage request does not include the time length required for temporary storage, the target terminal can default to request the infinitely long temporary storage time.
In one embodiment, if the relay terminal currently used for temporarily storing the uplink data receives the uplink data all the time, the storage space of the relay terminal is easily saturated when the data size is large, so that the uplink data temporarily stored in the relay terminal may overflow and be lost.
In view of this, after selecting the relay terminal from the target terminals according to the capability, the data transmission method based on the satellite signal provided in the embodiment of the present application may further include: the state of the storage space of each relay terminal is acquired, for example, at a preset period, for example, every 3 s. And sending second notification information to the relay terminal with the saturated storage space to notify the relay terminal with the saturated storage space to transmit part or all of the temporarily stored uplink data to the knapsack base station.
Or sending third notification information to the user terminal, wherein the third notification information comprises a second terminal identifier of the relay terminal with the storage space in an idle state, so as to inform the user terminal to send uplink data to the relay terminal corresponding to the second terminal identifier.
In this way, the uplink data in the relay terminal with the storage space in a saturated state is transmitted to the knapsack base station or the relay terminal is replaced to temporarily store the uplink data, so that the possibility of overflow and loss of the uplink data temporarily stored in the relay terminal can be reduced.
The embodiment of the application also provides a data transmission method based on the satellite signals, please refer to fig. 2, and fig. 2 is a flowchart of another data transmission method based on the satellite signals provided in some embodiments of the application. In the embodiment of the present application, the data transmission method based on the satellite signal may be specifically executed by the relay terminal.
As shown in fig. 2, the data transmission method based on satellite signals provided in the embodiment of the present application includes the following steps 201 to 204:
step 201, receiving a temporary storage request sent by a knapsack base station.
The temporary storage request is sent by the knapsack base station under the condition of insufficient storage space and no satellite coverage, and is used for requesting the relay terminal to temporarily store the uplink data, where the temporary storage request may include the capacity and/or duration of the temporary stored uplink data, as described in the foregoing embodiment.
Step 202, based on the temporary storage request, sending a temporary storage response to the knapsack base station.
After receiving the temporary storage request, the relay terminal can carry information which cannot be temporarily stored or is agreed to be temporarily stored in a temporary storage response according to the capability of the relay terminal and send the information to the knapsack base station, and further, when the temporary storage is agreed, the temporary storage response can also comprise information of the capacity and/or the duration of uplink data which can be temporarily stored.
And 203, receiving and temporarily storing the uplink data sent by the user terminal when the temporary storage response content is the approval temporary storage.
The relay terminal temporarily stores the uplink data, so that the possibility of data overflow and loss caused by insufficient storage space of the back packet base station can be reduced.
Step 204, the temporary stored uplink data is sent to the knapsack base station, so that the knapsack base station transmits the uplink data to the satellite when the knapsack base station has satellite coverage.
In one embodiment, sending the buffered uplink data to the knapsack base station includes: and transmitting uplink data to the knapsack base station at a transmission time point, wherein the transmission time point is determined based on the temporary storage request or is determined based on the temporary storage response. Or transmitting uplink data when receiving a transmission request sent by the knapsack base station.
It should be noted that, when there are multiple ue, the uplink data transmitted to the knapsack base station at the transmission time point further includes indication information for indicating the ue corresponding to the uplink data.
In practical application, before receiving the temporary storage request sent by the knapsack base station, the relay terminal can also receive a storage capacity reporting request sent by the knapsack base station, and the relay terminal reports the storage capacity to the knapsack base station according to the storage capacity reporting request, so that the knapsack base station sends the temporary storage request to the relay terminal with the storage capacity meeting the requirement.
In this embodiment, after receiving the temporary storage request sent by the knapsack base station, the relay terminal sends a temporary storage response to the knapsack base station according to its own storage capability, and if the content of the temporary storage response is the approval temporary storage, the relay terminal can assist the knapsack base station to temporarily store uplink data from the user terminal, so as to reduce the storage pressure of the knapsack base station when no satellite is covered, and avoid the loss or overflow of the uplink data caused by insufficient storage space of the knapsack base station.
The embodiment of the application also provides a data transmission method based on the satellite signals, please refer to fig. 3, and fig. 3 is a flowchart of another data transmission method based on the satellite signals provided in some embodiments of the application. In the embodiment of the application, the data transmission method based on the satellite signal can be specifically executed by the user terminal.
As shown in fig. 3, the data transmission method based on satellite signals provided in the embodiment of the present application includes the following steps 301 to 302:
step 301, a first notification message is received.
And when the storage space is insufficient and satellite coverage is not available, the knapsack base station transmits the first notification message, wherein the first notification message comprises a first terminal identifier and is used for notifying the user terminal to transmit uplink data to a relay terminal corresponding to the first terminal identifier.
And step 302, sending uplink data to the relay terminal according to the first notification message.
In this embodiment, the user terminal may send the uplink data to the relay terminal corresponding to the first terminal identifier according to the received first notification message and the first terminal identifier included in the first notification message, so that the relay terminal temporarily stores the uplink data, so as to reduce the storage pressure of the knapsack base station.
The following describes in detail a data transmission method based on satellite signals according to an embodiment of the present application with a specific example.
Assuming that the knapsack base station is not covered by a satellite currently and the storage space of the knapsack base station is insufficient, the target terminals are a terminal A, a terminal B and a terminal C. The knapsack base station acquires the storage capacities of the terminal A, the terminal B and the terminal C. Assuming that the sequence from high to low according to the capacity is terminal C, terminal A and terminal B, the knapsack base station selects terminal C and terminal A therein to send a temporary storage request, the data capacity of the uplink data needing temporary storage in the temporary storage request is 50MB, and the duration of the uplink data needing temporary storage is 60s.
After receiving the temporary storage request, the terminal C and the terminal A respectively send temporary storage responses to the knapsack base station. Assuming that the terminal C determines that the temporary storage service cannot be provided, the content of the temporary storage response sent to the knapsack base station is not temporary storage.
Assuming that the terminal a can provide a service of buffering 50MB of uplink data 60s, the content of the buffering response is transmitted to the knapsack base station as the uplink data 60s agreeing to buffer 50 MB.
After receiving the temporary storage response of the terminal C and the temporary storage response of the terminal A, the knapsack base station determines that the terminal A is a relay terminal according to the content in the temporary storage response.
Assuming that the user terminal includes a user terminal A1 and a user terminal A2, the knapsack base station carries a terminal identifier a of the terminal a in a first notification message and sends the first notification message to the user terminal A1 and the user terminal A2 respectively. The first notification message is used for notifying the user terminal A1 and the user terminal A2 to send uplink data to the terminal a corresponding to the terminal identifier a.
After receiving the first notification message, the user terminal A1 and the user terminal A2 respectively send uplink data to the terminal a corresponding to the terminal identifier a.
The terminal a may transmit uplink data to the knapsack base station after 60s, or may transmit the uplink data of 50MB to the knapsack base station according to a transmission request sent by the knapsack base station. In addition, the terminal a may transmit indication information to the knapsack base station, where the indication information is used to indicate to the knapsack base station which uplink data of the 50MB of uplink data is sent by the user terminal A1 and which uplink data is sent by the user terminal A2.
And after receiving the 50MB uplink data transmitted by the terminal A, the knapsack base station transmits the uplink data to the satellite when the satellite is covered.
Another embodiment of the present application further provides a data transmission device based on satellite signals, and referring to fig. 4, fig. 4 is a schematic structural diagram of the data transmission device based on satellite signals provided in some embodiments of the present application.
As shown in fig. 4, the satellite signal-based data processing apparatus 4 of the present embodiment may include: a sending module 401, an obtaining module 402 and a transmitting module 403.
The sending module 401 is configured to send a first notification message to the user terminal when the storage space is insufficient and there is no satellite coverage. The first notification message is used for notifying the user terminal to send uplink data to the relay terminal. The acquiring module 402 is configured to acquire temporary uplink data from the relay terminal. The transmission module 403 is configured to transmit the uplink data acquired by the acquisition module 402 to a satellite when there is satellite coverage.
In one embodiment, the sending module 401 may also be configured to: and acquiring the storage capacity of the target terminal, and selecting the relay terminal from the target terminal according to the storage capacity.
In one embodiment, the sending module 401 may be specifically configured to: and sending temporary storage requests to a preset number of target terminals, receiving temporary storage responses sent by the preset number of target terminals, and determining the relay terminal according to the content contained in the temporary storage responses.
The temporary storage request comprises a first data capacity of uplink data which needs auxiliary temporary storage of the target terminal, and the temporary storage response comprises a second data capacity of the uplink data which can be temporarily stored by the target terminal; or the temporary storage request comprises a first time length for auxiliary temporary storage of the target terminal, and correspondingly, the temporary storage response comprises a second time length for uplink data which can be temporarily stored by the target terminal; or the temporary storage request comprises a first data capacity and a first duration, and the temporary storage response comprises a second data capacity and a second duration.
In one embodiment, when the content of the scratch response is agreement scratch pad, the sending module 401 is further configured to: and carrying the first terminal identification of the relay terminal in a first notification message and sending the first terminal identification to the user terminal so that the user terminal sends uplink data to the relay terminal corresponding to the first terminal identification.
In one embodiment, the obtaining module 402 may be further specifically configured to: and receiving uplink data transmitted by the relay terminal at a transmission time point, wherein the transmission time point is determined based on the temporary storage request or the temporary storage response. Or, sending a transmission request to the relay terminal, where the transmission request at least includes data information of uplink data requested to be transmitted. And receiving the uplink data transmitted by the relay terminal according to the data information in the transmission request.
In one embodiment, after selecting the relay terminal from the target terminals according to the capability, the sending module 401 may be further configured to: the state of the storage space of each relay terminal is acquired, second notification information is sent to the relay terminal with the storage space in a saturated state, and the second notification information is used for notifying the relay terminal with the storage space in the saturated state to transmit part or all of temporary stored uplink data to the knapsack base station. Or sending third notification information to the user terminal, wherein the third notification information comprises a second terminal identifier of the relay terminal with the storage space in an idle state, and the second terminal identifier is used for notifying the user terminal to send uplink data to the relay terminal corresponding to the second terminal identifier.
The data transmission device 4 based on satellite signals in this embodiment may be used to implement the technical scheme of the method embodiment shown in fig. 1, and its implementation principle and technical effects are similar, and are not repeated here.
Another embodiment of the present application further provides another data transmission device based on satellite signals, and referring to fig. 5, fig. 5 is a schematic structural diagram of another data transmission device based on satellite signals provided in some embodiments of the present application.
As shown in fig. 5, the satellite signal-based data processing apparatus 5 of the present embodiment may include: a first receiving module 501, a first transmitting module 502, a second receiving module 503, and a second transmitting module 504.
The first receiving module 501 is configured to receive a temporary storage request sent by a knapsack base station. The first sending module 502 is configured to send a temporary storage response to the knapsack base station based on the temporary storage request received by the first receiving module 501. The second receiving module 503 is configured to receive and temporarily store uplink data sent by the user terminal when the content of the temporary storage response sent by the first sending module 502 is the temporary storage approval. The second sending module 504 is configured to send the buffered uplink data to the knapsack base station, so that the knapsack base station transmits the uplink data to the satellite when the knapsack base station has satellite coverage.
In one embodiment, the second sending module 504 is further configured to: and transmitting the uplink data to the knapsack base station at a transmission time point, wherein the transmission time point is determined based on the temporary storage request or is determined based on the temporary storage response. Or transmitting the uplink data according to the transmission request sent by the knapsack base station.
The data transmission device 5 based on satellite signals in this embodiment may be used to implement the technical scheme of the method embodiment shown in fig. 2, and its implementation principle and technical effects are similar, and are not repeated here.
Still another embodiment of the present application further provides a data transmission device based on a satellite signal, and referring to fig. 6, fig. 6 is a schematic structural diagram of the data transmission device based on a satellite signal according to some embodiments of the present application.
As shown in fig. 6, the satellite signal-based data processing apparatus 6 of the present embodiment may include: a receiving module 601 and a transmitting module 602.
The receiving module 601 is configured to receive a first notification message, where the first notification message is sent by a knapsack base station, and the first notification message includes a first terminal identifier, and is configured to notify a user terminal to send uplink data to a relay terminal corresponding to the first terminal identifier. The sending module 602 is configured to send uplink data to the relay terminal according to the first notification message received by the receiving module 601.
The data transmission device 6 based on the satellite signal according to the present embodiment may be used to implement the technical scheme of the method embodiment shown in fig. 3, and its implementation principle and technical effects are similar, and will not be described herein again.
Another embodiment of the present application further provides a computer device 7, and referring to fig. 7, fig. 7 is a schematic structural diagram of the computer device provided in some embodiments of the present application.
As shown in fig. 7, a computer device 7 includes: the system comprises a memory 71 and a processor 72, wherein the memory 71 stores a computer program, and the processor 72 implements the satellite signal-based data transmission method shown in fig. 1 of the embodiment of the application, or implements the satellite signal-based data transmission method shown in fig. 2 of the embodiment of the application, or implements the satellite signal-based data transmission method shown in fig. 3 of the embodiment of the application when executing the computer program.
Another embodiment of the present application further provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, where the computer program when executed by a processor may implement the satellite signal based data transmission method shown in fig. 1 of the embodiment of the present application, or implement the satellite signal based data transmission method shown in fig. 2 of the embodiment of the present application, or implement the satellite signal based data transmission method shown in fig. 3 of the embodiment of the present application.
Those skilled in the art will appreciate that while some embodiments herein include certain features that are included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the present application and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (15)
1. A method for satellite signal based data transmission, the method comprising:
when the storage space is insufficient and satellite coverage is not available, a first notification message is sent to the user terminal, wherein the first notification message is used for notifying the user terminal to send uplink data to the relay terminal;
acquiring the temporarily stored uplink data from the relay terminal;
and transmitting the uplink data to the satellite when the satellite coverage exists.
2. The method of claim 1, wherein prior to the sending the first notification message to the user terminal, the method further comprises:
acquiring the storage capacity of a target terminal;
and selecting the relay terminal from the target terminals according to the storage capability.
3. The method according to claim 2, wherein said selecting the relay terminal from the target terminals according to the storage capability comprises:
sending temporary storage requests to a preset number of target terminals;
receiving temporary storage responses sent by a preset number of target terminals;
and determining the relay terminal according to the content contained in the temporary storage response.
4. The method of claim 3, wherein the sending the first notification message to the ue when the content of the scratch response is a grant scratch response comprises:
And carrying the first terminal identifier of the relay terminal in the first notification message and sending the first terminal identifier to the user terminal so that the user terminal sends uplink data to the relay terminal corresponding to the first terminal identifier.
5. A method according to claim 3, wherein the temporary storage request includes a first data capacity of the uplink data that needs to be temporarily stored in the auxiliary manner by the target terminal, and the temporary storage response includes a second data capacity of the uplink data that can be temporarily stored by the target terminal;
or the temporary storage request comprises a first time length for auxiliary temporary storage of the target terminal, and correspondingly, the temporary storage response comprises a second time length for the uplink data which can be temporarily stored by the target terminal;
or the temporary storage request comprises the first data capacity and the first duration, and correspondingly, the temporary storage response comprises the second data capacity and the second duration.
6. The method according to claim 3, wherein the acquiring the buffered uplink data from the relay terminal comprises:
receiving the uplink data transmitted by the relay terminal at a transmission time point, wherein the transmission time point is determined based on the temporary storage request or the temporary storage response;
Or, sending a transmission request to the relay terminal, wherein the transmission request at least comprises data information of uplink data requested to be transmitted;
and receiving the uplink data transmitted by the relay terminal according to the data information in the transmission request.
7. A method according to claim 3, wherein after said selecting the relay terminal from the target terminals according to the storage capability, the method further comprises:
acquiring the state of the storage space of each relay terminal;
transmitting second notification information to a relay terminal with a saturated storage space, wherein the second notification information is used for notifying the relay terminal with the saturated storage space to transmit part or all of the uplink data temporarily stored by the relay terminal to a knapsack base station;
or sending third notification information to the user terminal, where the third notification information includes a second terminal identifier of the relay terminal with an idle storage space, and is used to notify the user terminal to send the uplink data to the relay terminal corresponding to the second terminal identifier.
8. A method for satellite signal based data transmission, the method comprising:
Receiving a temporary storage request sent by a knapsack base station;
based on the temporary storage request, sending a temporary storage response to the knapsack base station;
when the content of the temporary storage response is the approval temporary storage, receiving uplink data sent by the user terminal according to the first notification message, and temporarily storing the uplink data; the first notification message is sent by the knapsack base station under the condition that the storage space is insufficient and satellite coverage is not available, and the first notification message is used for notifying the user terminal to send uplink data to the relay terminal;
and sending the temporarily stored uplink data to the knapsack base station so that the knapsack base station transmits the uplink data to a satellite when the knapsack base station has satellite coverage.
9. The method of claim 8, wherein said sending the buffered uplink data to the knapsack base station comprises:
transmitting the uplink data to the knapsack base station at a transmission time point, wherein the transmission time point is determined based on the temporary storage request or the transmission time point is determined based on the temporary storage response; or alternatively, the process may be performed,
and transmitting the uplink data according to the transmission request sent by the knapsack base station.
10. A method for satellite signal based data transmission, the method comprising:
Receiving a first notification message, wherein the first notification message is sent by a knapsack base station under the condition of insufficient storage space and no satellite coverage, and the first notification message comprises a first terminal identifier for notifying a user terminal to send uplink data to a relay terminal corresponding to the first terminal identifier;
and sending the uplink data to the relay terminal according to the first notification message.
11. A satellite signal based data transmission apparatus, the apparatus comprising:
the sending module is used for sending a first notification message to the user terminal when the storage space is insufficient and satellite coverage is not available, wherein the first notification message is used for notifying the user terminal to send uplink data to the relay terminal;
the acquisition module is used for acquiring the temporarily stored uplink data from the relay terminal;
and the transmission module is used for transmitting the uplink data acquired by the acquisition module to the satellite when the satellite is covered.
12. A satellite signal based data transmission apparatus, the apparatus comprising:
the first receiving module is used for receiving a temporary storage request sent by the knapsack base station;
the first sending module is used for sending a temporary storage response to the knapsack base station based on the temporary storage request received by the first receiving module;
The second receiving module is used for receiving uplink data sent by the user terminal according to the first notification message and temporarily storing the uplink data when the content of the temporary storage response sent by the first sending module is the temporary storage agreement; the first notification message is sent by the knapsack base station under the condition that the storage space is insufficient and satellite coverage is not available, and the first notification message is used for notifying the user terminal to send uplink data to the relay terminal;
and the second sending module is used for sending the temporarily stored uplink data to the knapsack base station so that the knapsack base station can transmit the uplink data to a satellite when the knapsack base station has satellite coverage.
13. A satellite signal based data transmission apparatus, the apparatus comprising:
the receiving module is used for receiving a first notification message which is sent by the knapsack base station under the condition of insufficient storage space and no satellite coverage, wherein the first notification message comprises a first terminal identifier and is used for notifying a user terminal to send uplink data to a relay terminal corresponding to the first terminal identifier;
and the sending module is used for sending the uplink data to the relay terminal according to the first notification message received by the receiving module.
14. A computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor, when executing the computer program, implementing a satellite signal based data transmission method according to any one of claims 1 to 7, or implementing a satellite signal based data transmission method according to claim 8 or 9, or implementing a satellite signal based data transmission method according to claim 10.
15. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the satellite signal based data transmission method according to any one of claims 1 to 7, or implements the satellite signal based data transmission method according to claim 8 or 9, or implements the satellite signal based data transmission method according to claim 10.
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