CN116112054A - Satellite-ground heterogeneous fusion network adaptive transmission selection method, system, storage medium and terminal - Google Patents
Satellite-ground heterogeneous fusion network adaptive transmission selection method, system, storage medium and terminal Download PDFInfo
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
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Abstract
The invention provides a satellite-ground heterogeneous fusion network self-adaptive transmission selection method, a system, a storage medium and a terminal, which comprise the following steps: acquiring network transmission parameters of a user; the network transmission parameters comprise a minimum transmission delay value and a minimum signal receiving power; when a satellite link and/or a terrestrial link is available, either the satellite link or the terrestrial link is selected for transmission based on the network transmission parameters. The satellite-ground heterogeneous fusion network self-adaptive transmission selection method, the system, the storage medium and the terminal can ensure that satellite network or ground network users of the satellite-ground heterogeneous network reasonably select the satellite network or the ground network for service, and effectively improve the average service quality of the users.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a satellite-ground heterogeneous fusion network self-adaptive transmission selection method, a system, a storage medium and a terminal.
Background
With the gradual maturation of satellite communication technology, research and standardization work on the world-wide integrated network has been continuously developed. The third generation partnership project (3rd Generation Partnership Project,3GPP) has opened up a study of Non-terrestrial network (Non-Terrestrial Network, NTN) communication technologies and defined and discussed its application scenarios, network architecture, potential technical problems and corresponding solutions. The heaven and earth integrated network will become an integral part of the sixth generation (6th Generation,6G) mobile communication system. Furthermore, the world-wide integrated network can provide global network coverage and full-time-space continuous communication services.
The space-based network and the foundation network have extremely strong complementarity in terms of coverage area, communication capability and the like. The space-based network has the characteristics of high satellite orbit height, large ground coverage area and independence on ground infrastructure, so that the limitation of terrain and ground disaster attack can be broken through. And the foundation network can provide high-capacity, high-speed and low-delay information service for users in the service-intensive area. Therefore, through heterogeneous fusion among the satellite-ground networks, the advantages and characteristics of different communication networks can be fully exerted by the space-ground integrated network, the problems of full coverage and deep coverage of the traditional foundation network are solved, an efficient solution is provided for application such as offshore, emergency, global mobile communication and the like, and real global enhanced mobile broadband and everything interconnection is realized.
On one hand, the satellite communication network has the advantages of simple channel condition, less relay forwarding links, strong covering power and low requirement on transmission energy; the disadvantage is the large transmission distance and high transmission delay value. On the other hand, the ground communication network has the advantages of short transmission distance and small transmission delay value; the method has the defects of complex channel environment, more relay forwarding links and high requirement on transmission energy. Therefore, in the satellite-ground heterogeneous network, how to reasonably select the satellite network or the ground network becomes a key technical problem in order to ensure that the user obtains the best service quality.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a satellite-ground heterogeneous fusion network adaptive transmission selection method, a system, a storage medium and a terminal, which can ensure that satellite network or ground network is reasonably selected by a satellite-ground heterogeneous network user for service, and effectively improve average service quality of the user.
To achieve the above object and other related objects, the present invention provides a method for adaptively selecting transmission of a star-to-ground heterogeneous fusion network, comprising the following steps: acquiring network transmission parameters of a user; the network transmission parameters comprise a minimum transmission delay value and a minimum signal receiving power; when a satellite link and/or a terrestrial link is available, either the satellite link or the terrestrial link is selected for transmission based on the network transmission parameters.
In an embodiment of the present invention, when only the satellite link is available, if the current signal received power of the satellite link is not less than the minimum signal received power, the satellite link is selected for transmission, otherwise, the transmission is terminated; and when only the ground link is available, selecting the ground link for transmission if the current signal receiving power of the ground link is not less than the lowest signal receiving power, and otherwise, terminating transmission.
In an embodiment of the present invention, when both the satellite link and the terrestrial link are available, if a current transmission delay value of the satellite link is not greater than the minimum transmission delay value, the satellite link is preferentially selected; otherwise, the ground link is preferentially selected.
In an embodiment of the present invention, when the satellite link is preferentially selected, if the current signal received power of the satellite link is not less than the minimum signal received power and the transmission loss of the satellite link is not greater than the transmission loss of the ground link, the satellite link is selected for transmission; and if the current signal receiving power of the satellite link is smaller than the lowest signal receiving power or the transmission loss of the satellite link is larger than the transmission loss of the ground link, preferentially selecting the ground link.
In an embodiment of the present invention, when the ground link is preferentially selected, if the current signal received power of the ground link is not less than the minimum signal received power, the ground link is selected for transmission; otherwise, when the current signal receiving power of the satellite link is not less than the lowest signal receiving power, selecting the satellite link for transmission, and when the current signal receiving power of the satellite link is less than the lowest signal receiving power, terminating transmission.
In an embodiment of the present invention, the following method is used to obtain the network transmission parameters of the user:
1) Manually presetting;
2) Manually adjusting periodically or aperiodically;
3) And dynamically changing periodically or aperiodically based on preset rules.
In an embodiment of the present invention, the network transmission parameters are customized uniformly or individually for different users.
The invention provides a satellite-ground heterogeneous fusion network self-adaptive transmission selection system, which comprises an acquisition module and a selection module;
the acquisition module is used for acquiring network transmission parameters of a user; the network transmission parameters comprise a minimum transmission delay value and a minimum signal receiving power;
the selection module is used for selecting the satellite link or the ground link for transmission based on the network transmission parameters when the satellite link and/or the ground link are available.
The invention provides a storage medium, on which a computer program is stored, which when executed by a processor implements the above-described satellite-to-ground heterogeneous fusion network adaptive transmission selection method.
The invention provides a satellite-ground heterogeneous fusion network self-adaptive transmission selection terminal, which comprises: a processor and a memory;
the memory is used for storing a computer program;
the processor is used for executing the computer program stored in the memory so that the satellite-ground heterogeneous fusion network adaptive transmission selection terminal executes the satellite-ground heterogeneous fusion network adaptive transmission selection method.
As described above, the satellite-ground heterogeneous fusion network adaptive transmission selection method, the system, the storage medium and the terminal have the following beneficial effects:
(1) Based on parameters such as transmission delay value, signal receiving power, transmission loss and the like of the satellite-ground heterogeneous network, the self-adaptive transmission network selection is realized, so that satellite network or ground network is ensured to be reasonably selected by a satellite-ground heterogeneous network user for service, and the average service quality of the user is effectively improved;
(2) The application range is wide, the method is suitable for various star-ground heterogeneous network systems and signal waveforms, and the compatibility is high;
(3) The method is easy to implement, does not need to change the hardware structure of the existing system, and is convenient for practical popularization and application.
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FIG. 1 is a flow chart of a star-to-ground heterogeneous fusion network adaptive transmission selection method according to an embodiment of the invention;
fig. 2 is a schematic diagram of a framework of an adaptive transmission selection method for a star-ground heterogeneous fusion network according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an adaptive transmission selection system for a star-ground heterogeneous fusion network according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an adaptive transmission selection terminal of a star-ground heterogeneous convergence network according to an embodiment of the present invention.
Description of element reference numerals
31. Acquisition module
32. Selection module
41. Processor and method for controlling the same
42. Memory device
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
According to the satellite-ground heterogeneous fusion network self-adaptive transmission selection method, the system, the storage medium and the terminal, the transmission link is selected in a self-adaptive manner based on the parameters such as the transmission delay value, the signal receiving power and the transmission loss of the satellite-ground heterogeneous network, so that a satellite network or a ground network can be reasonably selected by a satellite-ground heterogeneous network user for service, the average service quality of the user is effectively improved, the application scene is wide, and the practicability is strong.
As shown in fig. 1, in an embodiment, the adaptive transmission selection method for a star-ground heterogeneous fusion network of the present invention includes the following steps:
step S1, acquiring network transmission parameters of a user; the network transmission parameters include a minimum transmission delay value and a minimum signal received power.
Specifically, network transmission parameters that do not affect the user transmission quality, i.e., minimum transmission delay values, minimum signal reception power, satellite link transmission loss, and terrestrial link transmission loss, are acquired.
In an embodiment of the present invention, the following method is used to obtain the network transmission parameters of the user:
1) And presetting manually, namely presetting the network transmission parameters in a manual setting mode. For the user, the network transmission parameter is a fixed value.
2) The network transmission parameters are adjusted manually, periodically or aperiodically, i.e. by means of manual setting. The network transmission parameters are variable for the user.
3) And dynamically changing the network transmission parameters periodically or aperiodically based on preset rules, i.e. adopting preset rule adjustment periodically or aperiodically to modify the network transmission parameters. The network transmission parameters are variable for the user.
It should be noted that, for different users, the network transmission parameters may be uniformly valued, or personalized and customized to meet the needs of different users.
Step S2, when a satellite link and/or a ground link are available, the satellite link or the ground link is selected for transmission based on the network transmission parameters.
Specifically, when the user needs to transmit, the satellite link or the ground link is selected according to parameters such as a transmission delay value, signal receiving power, transmission loss and the like of the currently selected link, and the requirement or expectation of the user on the parameters. The satellite link and the terrestrial link are alternatively selected and cannot be selected simultaneously. When only one of the satellite link and the terrestrial link is available, it is only necessary to determine whether to select the link according to whether the current signal received power of the link meets the minimum signal received power requirement, without reference to other parameter conditions of the link or reference to any parameter conditions of other links. When both the satellite link and the terrestrial link are available, a preferred link is selected based on parameters such as transmission delay values, signal received power, transmission loss, etc., wherein only one parameter is compared at a time to see if the user's needs or desires are met. Preferably, the priority of the transmission delay value, the signal reception power, and the transmission loss is gradually decreased. Only if the higher priority parameter of the current preferred link meets the user requirement or desire, it is further determined whether the lower priority parameter of the current preferred link meets the user requirement or desire. If the lower priority parameter of the current preferred link does not meet the user requirement or expectation, the transmission task of the round is terminated; or change the current preferred link and re-determine whether the higher priority parameters of the new preferred link meet the user's needs or desires to determine to select the new preferred link or terminate the present round of transmission.
When a user in a satellite-to-ground heterogeneous network generates a transmission demand, it is first explored whether the satellite link is available with the terrestrial link. For the availability of the satellite link and the terrestrial link, the following different selection strategies are adopted:
1) If neither the satellite link nor the terrestrial link is available, the present round of transmission is terminated.
2) And if only the satellite link is available, selecting the satellite link for transmission when the current signal receiving power of the satellite link is not less than the lowest signal receiving power, and otherwise, terminating the transmission of the round.
3) And if the ground link is available, selecting the ground link for transmission when the current signal receiving power of the ground link is not less than the lowest signal receiving power, and otherwise, terminating the transmission of the round.
4) If the satellite link and the ground link are both available, when the current transmission delay value of the satellite link is not greater than the minimum transmission delay value, preferentially selecting the satellite link; otherwise, the ground link is preferentially selected.
When the satellite link is preferentially selected, if the current signal receiving power of the satellite link is not less than the lowest signal receiving power and the transmission loss of the satellite link is not greater than the transmission loss of the ground link, selecting the satellite link for transmission; and if the current signal receiving power of the satellite link is smaller than the lowest signal receiving power or the transmission loss of the satellite link is larger than the transmission loss of the ground link, preferentially selecting the ground link.
When the ground link is preferentially selected, if the current signal receiving power of the ground link is not less than the lowest signal receiving power, the ground link is selected for transmission; otherwise, the satellite link is preferentially selected, when the current signal receiving power of the satellite link is not smaller than the lowest signal receiving power, the satellite link is selected for transmission, and when the current signal receiving power of the satellite link is smaller than the lowest signal receiving power, the transmission of the round is terminated.
The adaptive transmission selection method of the star-ground heterogeneous fusion network is further described by a specific embodiment.
In this embodiment, as shown in fig. 2, the user transmits signals using an orthogonal frequency division multiplexing technique. The system user supports a satellite link and a ground link, and the user can select one of the links to transmit data according to the requirements, and the method specifically comprises the following steps:
step 1, users in the satellite-ground heterogeneous network generate transmission demands and start to perform self-adaptive transmission selection of the satellite-ground heterogeneous fusion network.
And 2, confirming network transmission parameters which do not influence the transmission quality of the user, namely a minimum transmission delay value T, a minimum signal receiving power P and the like.
And step 3, searching whether the satellite link and the ground link are available.
And 5, ending the current transmission task, ending the round, and waiting for the next round.
And 6, judging the state of the available link. If only satellite links are available, step 7 is entered; if only the ground link is available, go to step 9; if both links are available, step 11 is entered.
And 7, measuring the current signal receiving power P1 of the satellite link.
And 8, judging the relation between the current signal receiving power P1 of the satellite link and the lowest signal receiving power P of the user. If P1> =p, go to step 17; otherwise, step 5 is entered.
And 9, measuring the current signal receiving power P2 of the ground link.
And step 10, judging the relation between the current signal receiving power P2 of the ground link and the lowest signal receiving power P of the user. If P2> =p, go to step 20; otherwise, step 5 is entered.
And step 11, measuring the current transmission delay value T1 of the satellite link.
And step 12, judging the relationship between the current transmission delay value T1 of the satellite link and the minimum transmission delay value T of the user. If T1< = T, go to step 13; otherwise, step 18 is entered.
And step 13, measuring the current signal receiving power P1 of the satellite link.
And 14, judging the relation between the current signal receiving power P1 of the satellite link and the lowest signal receiving power P of the user. If P1> =p, go to step 15; otherwise, step 18 is entered.
And 15, measuring transmission losses C1 and C2 of the satellite link and the ground link.
And step 16, judging the magnitude relation of transmission loss C1 and C2 of the satellite link and the ground link. If C1< = C2, go to step 17; otherwise, step 18 is entered.
And step 17, the user selects a satellite link to carry out a transmission task, the selection of the round is finished, and the next round is waited.
And step 19, judging the relation between the current signal receiving power P2 of the ground link and the lowest signal receiving power P of the user. If P2> =p, go to step 20; otherwise, step 7 is entered.
And 20, selecting a ground link by a user to carry out a transmission task, finishing the selection of the round, and waiting for the next round.
As shown in fig. 3, in an embodiment, the adaptive transmission selection system for a star-ground heterogeneous fusion network of the present invention includes an acquisition module 31 and a selection module 32.
The acquiring module 31 is configured to acquire network transmission parameters of a user; the network transmission parameters include a minimum transmission delay value and a minimum signal received power.
The selection module 32 is connected to the acquisition module 31 and is configured to select a satellite link or a terrestrial link for transmission based on the network transmission parameters when the satellite link and/or the terrestrial link are available.
The structures and principles of the obtaining module 31 and the selecting module 32 are in one-to-one correspondence with the steps in the above-mentioned star-ground heterogeneous fusion network adaptive transmission selecting method, so that the description thereof is omitted herein.
It should be noted that, it should be understood that the division of the modules of the above apparatus is merely a division of a logic function, and may be fully or partially integrated into a physical entity or may be physically separated. The modules can be realized in a form of calling the processing element through software, can be realized in a form of hardware, can be realized in a form of calling the processing element through part of the modules, and can be realized in a form of hardware. For example: the x module may be a processing element which is independently set up, or may be implemented in a chip integrated in the device. The x module may be stored in the memory of the above device in the form of program codes, and the functions of the x module may be called and executed by a certain processing element of the above device. The implementation of the other modules is similar. All or part of the modules can be integrated together or can be implemented independently. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in a software form. The above modules may be one or more integrated circuits configured to implement the above methods, for example: one or more application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), one or more microprocessors (Digital Signal Processor, DSP for short), one or more field programmable gate arrays (Field Programmable Gate Array, FPGA for short), and the like. When a module is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processor that may invoke the program code. These modules may be integrated together and implemented in the form of a System-on-a-chip (SOC) for short.
The storage medium of the invention stores a computer program which, when executed by a processor, implements the above-described satellite-ground heterogeneous fusion network adaptive transmission selection method. Preferably, the storage medium includes: various media capable of storing program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
As shown in fig. 4, in an embodiment, the adaptive transmission selection terminal of the star-to-ground heterogeneous convergence network of the present invention includes: a processor 41 and a memory 42.
The memory 42 is used for storing a computer program. The memory 42 includes: various media capable of storing program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
The processor 41 is connected to the memory 42, and is configured to execute a computer program stored in the memory, so that the satellite-ground heterogeneous fusion network adaptive transmission selection terminal executes the satellite-ground heterogeneous fusion network adaptive transmission selection method.
Preferably, the processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, abbreviated as CPU), a network processor (Network Processor, abbreviated as NP), etc.; but also digital signal processors (Digital Signal Processor, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field programmable gate arrays (Field Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
In summary, the satellite-ground heterogeneous converged network adaptive transmission selection method, the system, the storage medium and the terminal realize adaptive transmission network selection based on parameters such as transmission delay values, signal receiving power, transmission loss and the like of the satellite-ground heterogeneous network, thereby ensuring that satellite network or ground network users reasonably select satellite network or ground network for service, and effectively improving average service quality of the users; the application range is wide, the method is suitable for various star-ground heterogeneous network systems and signal waveforms, and the compatibility is high; the method is easy to implement, does not need to change the hardware structure of the existing system, and is convenient for practical popularization and application. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A star-ground heterogeneous fusion network adaptive transmission selection method is characterized by comprising the following steps of: the method comprises the following steps:
acquiring network transmission parameters of a user; the network transmission parameters comprise a minimum transmission delay value and a minimum signal receiving power;
when a satellite link and/or a terrestrial link is available, either the satellite link or the terrestrial link is selected for transmission based on the network transmission parameters.
2. The star-to-ground heterogeneous fusion network adaptive transmission selection method according to claim 1, wherein the method comprises the following steps: when only the satellite link is available, selecting the satellite link for transmission if the current signal receiving power of the satellite link is not less than the lowest signal receiving power, otherwise, stopping transmission; and when only the ground link is available, selecting the ground link for transmission if the current signal receiving power of the ground link is not less than the lowest signal receiving power, and otherwise, terminating transmission.
3. The star-to-ground heterogeneous fusion network adaptive transmission selection method according to claim 1, wherein the method comprises the following steps: when the satellite link and the ground link are both available, if the current transmission delay value of the satellite link is not greater than the minimum transmission delay value, preferentially selecting the satellite link; otherwise, the ground link is preferentially selected.
4. The adaptive transmission selection method for the star-to-ground heterogeneous fusion network according to claim 3, wherein the method comprises the following steps: when the satellite link is preferentially selected, if the current signal receiving power of the satellite link is not less than the lowest signal receiving power and the transmission loss of the satellite link is not greater than the transmission loss of the ground link, selecting the satellite link for transmission; and if the current signal receiving power of the satellite link is smaller than the lowest signal receiving power or the transmission loss of the satellite link is larger than the transmission loss of the ground link, preferentially selecting the ground link.
5. The star-to-ground heterogeneous fusion network adaptive transmission selection method according to claim 3 or 4, wherein the method comprises the following steps: when the ground link is preferentially selected, if the current signal receiving power of the ground link is not less than the lowest signal receiving power, the ground link is selected for transmission; otherwise, when the current signal receiving power of the satellite link is not less than the lowest signal receiving power, selecting the satellite link for transmission, and when the current signal receiving power of the satellite link is less than the lowest signal receiving power, terminating transmission.
6. The star-to-ground heterogeneous fusion network adaptive transmission selection method according to claim 1, wherein the method comprises the following steps: the network transmission parameters of the user are acquired by adopting any one of the following modes:
1) Manually presetting;
2) Manually adjusting periodically or aperiodically;
3) And dynamically changing periodically or aperiodically based on preset rules.
7. The star-to-ground heterogeneous fusion network adaptive transmission selection method according to claim 1, wherein the method comprises the following steps: the network transmission parameters are customized uniformly or individually for different users.
8. A star-ground heterogeneous fusion network self-adaptive transmission selection system is characterized in that: the device comprises an acquisition module and a selection module;
the acquisition module is used for acquiring network transmission parameters of a user; the network transmission parameters comprise a minimum transmission delay value and a minimum signal receiving power;
the selection module is used for selecting the satellite link or the ground link for transmission based on the network transmission parameters when the satellite link and/or the ground link are available.
9. A storage medium having stored thereon a computer program, which when executed by a processor implements the star-to-ground heterogeneous fusion network adaptive transmission selection method of any of claims 1 to 7.
10. The utility model provides a star ground heterogeneous integration network self-adaptation transmission select terminal which characterized in that includes: a processor and a memory;
the memory is used for storing a computer program;
the processor is configured to execute the computer program stored in the memory, so that the star-to-ground heterogeneous fusion network adaptive transmission selection terminal executes the star-to-ground heterogeneous fusion network adaptive transmission selection method according to any one of claims 1 to 7.
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