Self-adaptive transmission method for extremely narrow band high-difference link

Abstract

According to the ultra-narrow-band high-difference link adaptive transmission method provided by the invention, cross-layer joint design is adopted, uniform addressing is carried out on a transmission layer and a network layer, and transmission redundancy is reduced; a dynamic and static combined routing strategy is adopted, a static networking protocol is operated on a narrowband means, protocol overhead is compressed, a dynamic networking protocol is operated on a broadband link, and networking flexibility is improved; a hop-by-hop and cross-hop combined strategy is adopted, and multi-route, multi-means and multi-link complementation and mutual backup are adopted, so that the survivability of the network is improved, and the efficiency and reliability of information transmission are enhanced; a heterogeneous means fusion strategy is adopted, space-based, ground, underwater and other multi-type heterogeneous communication means are comprehensively utilized, on demand, broadcasting and other mechanisms are fused, and space-air-ground three-dimensional coverage of the network is achieved.

Description

Technical Field

[0001] The present invention belongs to the field of integrated networking of multiple communication means, and specifically refers to a method for implementing an extremely narrowband high-difference link adaptive transmission protocol system. The present invention is particularly suitable for communication networks with fast-changing topology structures, multiple wireless communication means, and large differences in transmission means bandwidth, and more particularly relates to an extremely narrowband high-difference link adaptive transmission method. Background Art

[0002] Traditional wireless communication networking protocol implementation methods include existing point-to-multipoint microwave communication systems, shortwave communication networks, satellite communication systems, and various decentralized networking systems.

[0003] At present, patent applications in the field of ultra-narrowband high-variance link adaptive transmission cover multiple aspects such as system design, adaptive modulation and coding, link quality optimization, power control, multi-user access, anti-interference, synchronization and timing, and application scenarios. For example, US9825668 - "System and Method for Ultra-Narrowband Communication" (Ultra-Narrowband Communication System and Method); CN107294658A - "An Ultra-Narrowband Communication System and Its Signal Processing Method" (Ultra-Narrowband Communication System and Signal Processing Method), involving the architecture design of ultra-narrowband communication systems, including transmitters, receivers, and signal processing modules. US9876543 - "Power Control Method for Ultra-Narrowband Communication Devices" (Ultra-Narrowband Communication Device Power Control Method); CN106685602A - "An Ultra-Narrowband Communication Device Energy Saving Method" (Ultra-Narrowband Communication Device Energy Saving Method), involving power control and energy saving technologies in ultra-narrowband communications to extend device battery life. US9654321-"Interference Mitigation in Ultra-Narrowband Communication Systems"; CN107733477A-"A Spectrum Efficiency Optimization Method for Ultra-Narrowband Communication Systems", which relate to anti-interference technology and spectrum efficiency optimization methods in ultra-narrowband communications.

[0004] The above-mentioned existing technologies are usually designed for a single means or several means with small differences in transmission bandwidth. The transmission bandwidth of the means is high and the network topology is relatively fixed. Its networking protocol is difficult to apply to extremely narrowband, high-difference, multi-means wireless integrated communication networks. Summary of the invention

[0005] In view of the above-mentioned defects, the purpose of the present invention is to provide an extremely narrowband high-variance link adaptive transmission method, which is adapted to communication networks with fast changing network topology and large differences in communication means through innovative designs such as cross-layer joint design, dynamic and static combined networking, hop-by-hop combination, and heterogeneous means integration.

[0006] In order to achieve the above effect, the present invention provides an extremely narrowband high-variance link adaptive transmission method, including: Step 1: Establish a static routing table, plan the network topology, form an adjacency matrix that represents the connection relationship and communication means between nodes, calculate all routes that meet the hop count requirements between any two nodes, screen the routes and sort them by weight, select multiple routes with the highest ranking, calculate multiple routes between any two nodes in the entire network according to the above steps, form a routing table and send it to each node; Step 2: Combine dynamic and static routing addressing, and add the function of running dynamic routing protocol to the network switching equipment of each node in the network to realize dynamic networking of broadband links; Step 3: hop-by-hop and cross-hop combined transmission is implemented, selecting the best route for transmission or using multiple routes for parallel transmission; Step 4: Construct a network architecture that integrates heterogeneous means. Adopt heterogeneous means integration technology, comprehensively use multiple types of heterogeneous communication means, build a resilient network architecture, and provide comprehensive access network coverage.

[0007] Preferably, the above step 1 performs network topology planning according to the plan to form an adjacency matrix representing the connection relationship and communication means between nodes.

[0008] Preferably, in the above step 1, all routes that meet the hop count requirement between any two nodes are calculated using a depth-first multi-path search algorithm according to the network adjacency matrix.

[0009] Preferably, in the above step 1, irrelevant or less relevant routes are selected, unreasonable or unnecessary routes are deleted, the selected routes are sorted according to weights, and finally a plurality of routes with the highest sorting are selected.

[0010] Preferably, the network switching device of each node in the above step 2 searches the dynamic routing table and static routing table stored in itself and adopts a broadband and narrowband integrated routing mechanism, that is, using the narrowband channel static routing table as a basis and relying on the fiber broadband channel reachable node routing table as an auxiliary.

[0011] Preferably, the above narrowband channel is based on a pre-planned static routing strategy. During use, when a node or link is damaged, an intelligent perception algorithm of minimum fault set link state reasoning is adopted to adjust the routing relationship of related nodes based on centralized control.

[0012] Preferably, the above step 2 realizes the integration of narrowband channel static networking and broadband channel dynamic networking through network and link quality identification, and realizes the reasonable adaptation of service transmission strategy and bearer link.

[0013] Preferably, the above step three can automatically select serial / parallel sending mode according to message type and priority through multi-routes, multi-means and multi-links complementary and backup, and perform hop-by-hop or cross-hop transmission according to node deployment location and wireless means characteristics.

[0014] Preferably, the above step four uses multiple types of heterogeneous communication means such as space-based, ground-based and underwater, based on full-duplex and half-duplex communication modes, integrating various mechanisms such as on-demand and broadcast, covering burst link establishment to normal continuous communication, and realizing the integration of highly differentiated means of transmission capacity from bit level to gigabit level.

[0015] The present invention provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the above method is implemented.

[0016] The high-throughput, ultra-narrow-band, high-difference link adaptive transmission method provided by the present invention is adapted to communication networks with fast changes in network topology and large differences in communication means through innovative designs such as cross-layer joint design, dynamic and static combined networking, hop-by-hop combination, and heterogeneous means integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following briefly introduces the drawings required for use in the embodiment of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of an embodiment of an extremely narrowband high-variance link adaptive transmission method of the present invention is shown; Figure 2 A schematic diagram of a static routing table establishment process of an extremely narrowband high-variance link adaptive transmission method of the present invention is shown; Figure 3 The flowchart of the dynamic and static combined routing addressing of the extremely narrowband high-difference link adaptive transmission method of the present invention is shown. DETAILED DESCRIPTION

[0019] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and Examples. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0021] The present invention provides an embodiment of an extremely narrowband high-variance link adaptive transmission method, comprising: Step 1: Establish a static routing table, plan the network topology, form an adjacency matrix that represents the connection relationship and communication means between nodes, calculate all routes that meet the hop count requirements between any two nodes, screen the routes and sort them by weight, select multiple routes with the highest ranking, calculate multiple routes between any two nodes in the entire network according to the above steps, form a routing table and send it to each node; Step 2: Combine dynamic and static routing addressing, and add the function of running dynamic routing protocol to the network switching equipment of each node in the network to realize dynamic networking of broadband links; Step 3: hop-by-hop and cross-hop combined transmission is implemented, selecting the best route for transmission or using multiple routes for parallel transmission; Step 4: Construct a network architecture that integrates heterogeneous means. Adopt heterogeneous means integration technology, comprehensively use multiple types of heterogeneous communication means, build a resilient network architecture, and provide comprehensive access network coverage.

[0022] In some embodiments, step one performs network topology planning according to the plan to form an adjacency matrix representing the connection relationship and communication means between nodes.

[0023] In some embodiments, step 1 calculates all routes between any two nodes that meet the hop count requirement using a depth-first multi-path search algorithm based on the network adjacency matrix.

[0024] In some embodiments, step 1 selects irrelevant or less relevant routes, deletes unreasonable or unnecessary routes, sorts the selected routes according to weights, and finally selects multiple routes with the highest rankings.

[0025] In some embodiments, in step 2, the network switching device of each node searches the dynamic routing table and static routing table stored in itself, and adopts a broadband and narrowband fusion routing mechanism, that is, using the narrowband channel static routing table as a basis and relying on the fiber broadband channel reachable node routing table as an auxiliary.

[0026] In some embodiments, the narrowband channel is based on a pre-planned static routing strategy. During use, when a node or link is damaged, an intelligent perception algorithm of minimum fault set link state reasoning is adopted to adjust the routing relationship of related nodes based on centralized control.

[0027] In some embodiments, step 2 realizes the integration of narrowband channel static networking and broadband channel dynamic networking through network and link quality identification, and realizes reasonable adaptation of service transmission strategy and bearer link.

[0028] In some embodiments, step three can automatically select serial / parallel transmission mode according to message type and priority through multi-route, multi-means, and multi-link complementary backup, and perform hop-by-hop or cross-hop transmission according to node deployment location and wireless means characteristics.

[0029] In some embodiments, step four uses multiple types of heterogeneous communication means such as space-based, ground-based, and underwater, based on full-duplex and half-duplex communication modes, integrating multiple mechanisms such as on-demand and broadcast, covering burst link establishment to normal continuous communication, and realizing the integration of highly differentiated means of transmission capacity from bit level to gigabit level.

[0030] like Figure 1 As shown, the present invention provides an embodiment of an extremely narrowband high-variance link adaptive transmission method, comprising: S101, adopt cross-layer joint design, unify the addressing of transport layer and network layer, and reduce transmission redundancy; S102. Adopt a combination of dynamic and static routing strategies, run static networking protocols on narrowband means to compress protocol overhead, and run dynamic networking protocols on broadband links to improve networking flexibility; S103, adopting a hop-by-hop and cross-hop combined strategy, through multi-routing, multi-means, and multi-link complementary and mutual backup, to increase the network's anti-destruction capability and enhance the efficiency and reliability of information transmission; S104. Adopt a heterogeneous means fusion strategy, comprehensively use multiple types of heterogeneous communication means such as space-based, ground-based, and underwater, and integrate multiple mechanisms such as on-demand and broadcast to achieve three-dimensional network coverage of the air, ground, and space.

[0031] In some embodiments, facing the characteristics of extremely narrowband means, cross-layer joint design technology is used to reduce protocol overhead, and the transport layer and network layer in the five-layer protocol system (application layer, transport layer, network layer, link layer and physical layer) are uniformly addressed. After the transport layer completes data packetization, the network layer directly reads the destination address of the transport layer data packet and transmits data according to the destination address, without adding additional overhead such as address information; the network layer directly reads the information identifier of the transport layer data packet and adaptively transmits it serially or in parallel according to the information identifier, without generating additional overhead such as information identifier and transmission mode information.

[0032] In some embodiments, facing the characteristics of dynamic changes in network topology, a dynamic and static combined routing strategy is adopted, with the narrowband channel static routing table as the basis and the fiber broadband channel reachable node routing table as the auxiliary. The network topology is pre-planned according to the plan to form an initial static routing table. During the addressing process, a dynamic routing protocol is run based on the broadband link to achieve the integrated utilization of broadband and narrowband links.

[0033] The present invention provides an embodiment of an extremely narrowband high-variance link adaptive transmission method, comprising: (1) Static routing table establishment According to the plan, the network topology is planned to form an adjacency matrix that represents the connection relationship and communication means between nodes. According to the network adjacency matrix, the depth-first multi-path search algorithm is used to calculate all routes that meet the hop count requirements between any two nodes. Unrelated or less relevant routes are selected, and unreasonable or unnecessary routes are deleted. The selected routes are sorted by weight and the first few routes are finally selected.

[0034] According to the above method, multiple routes between any two nodes in the whole network are calculated to form a routing table, which is sent to each node. The process of establishing a static routing table is shown in Figure 2.

[0035] (2) Dynamic and static combined routing addressing The network switching equipment at each node in the network is added with the function of running dynamic routing protocols to realize dynamic networking of broadband links.

[0036] The network switching equipment of each node searches its own stored dynamic routing table and static routing table, and adopts a routing mechanism that combines narrowband and broadband channels, that is, it uses the narrowband channel static routing table as a benchmark, and relies on the fiber broadband channel reachable node routing table as an auxiliary. The narrowband channel is based on a pre-planned static routing strategy. During use, when nodes and links are damaged, the intelligent perception algorithm of the minimum fault set link state reasoning is adopted, and the routing relationship of related nodes is adjusted based on centralized control to ensure routing optimization and network resistance under conditions of local network damage. The dynamic and static combined routing addressing flow chart is shown in Figure 3, where node A is the source node and node B is the destination node.

[0037] 3. Aiming at the requirements of high network anti-destruction capability, a hop-by-hop and cross-hop combined strategy is adopted. Through the design of multiple routes, multiple means, multiple links complementary and backup, and backbone node mobile blind spot filling, when the network nodes and links are sound, according to the type and priority of the message to be sent, the best route is selected for sending or multiple routes are used for parallel sending to ensure the efficiency of information transmission; when some nodes fail and some links are destroyed, the accessibility of information transmission is guaranteed by the remaining routes, means, and links.

[0038] 4. In view of the requirements of high reliability and wide coverage of network information transmission, heterogeneous means fusion technology is adopted, and various types of heterogeneous communication means such as space-based, ground-based and underwater are comprehensively used to build a resilient network architecture, ensure the resilience and reliability of the backbone network, and comprehensive coverage of the access network.

[0039] The present invention provides an embodiment of an extremely narrowband high-variance link adaptive transmission protocol system, including: forming a communication network adapted to fast-changing network topology and large differences in communication means through cross-layer joint design, dynamic and static combined networking, hop-by-hop combination, and heterogeneous means fusion.

[0040] In some embodiments, cross-layer joint design realizes information sharing between layers through integrated addressing of the transport layer and the network layer, reduces network protocol overhead, and forms a protocol processing mechanism suitable for extremely narrow band, high difference and multiple means.

[0041] In some embodiments, dynamic and static routing strategies are combined to achieve the integration of narrowband channel static networking and broadband channel dynamic networking through network and link quality identification, thereby achieving reasonable adaptation of service transmission strategies and bearer links.

[0042] In some embodiments, a hop-by-hop and cross-hop combined strategy can automatically select serial / parallel sending modes according to message type and priority through multi-routes, multi-means, and multi-link complementary backup, and can perform hop-by-hop or cross-hop transmission according to node deployment location, wireless means characteristics, etc., thereby improving the efficiency and reliability of information transmission.

[0043] In some embodiments, the heterogeneous means fusion strategy comprehensively utilizes multiple types of heterogeneous communication means such as space-based, ground-based, and underwater, covering full-duplex and half-duplex communication modes, integrating multiple mechanisms such as on-demand and broadcast, and covering burst link establishment to normal continuous communication, realizing the integration and efficient utilization of highly differentiated means with transmission capacity ranging from bit level to gigabit level, ensuring the network's resilience, reliability, and comprehensive coverage. Compared with the prior art, the present invention has the following advantages: The present invention is based on the cross-layer protocol design technology of extremely narrowband, high-variance, and multi-means communication networks, which greatly compresses the protocol overhead; The present invention adopts a dynamic and static combined routing strategy to improve the utilization rate of broadband resources on the basis of ensuring reliable and accessible information transmission; The present invention adopts a hop-by-hop combined transmission strategy, which not only ensures the high efficiency of information transmission when the network is sound, but also ensures the reliability of information transmission when the network is damaged; This paper proposes a heterogeneous means fusion strategy to ensure the reliability and coverage of the network. For the convenience of description, the above device is described in various units according to their functions. Of course, when implementing the present application, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0044] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0045] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0046] The present application may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The present application may also be practiced in distributed computing environments where tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules may be located in local and remote computer storage media, including storage devices.

[0047] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0048] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0049] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0050] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0051] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0052] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0053] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0054] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A very narrowband high-variance link adaptive transmission method, characterized in that The method comprises: Step 1: Establish a static routing table, plan the network topology, form an adjacency matrix that represents the connection relationship and communication means between nodes, calculate all routes that meet the hop count requirements between any two nodes, screen the routes and sort them by weight, select multiple routes with the highest ranking, calculate multiple routes between any two nodes in the entire network according to the above steps, form a routing table and send it to each node; Step 2: Combine dynamic and static routing addressing, and add the function of running dynamic routing protocol to the network switching equipment of each node in the network to realize dynamic networking of broadband links; Step 3: hop-by-hop and cross-hop combined transmission is implemented, selecting the best route for transmission or using multiple routes for parallel transmission; Step 4: Construct a network architecture that integrates heterogeneous means. Adopt heterogeneous means integration technology, comprehensively use multiple types of heterogeneous communication means, build a resilient network architecture, and provide comprehensive access network coverage.

2. The extremely narrowband high-variance link adaptive transmission method according to claim 1 is characterized in that The first step is to plan the network topology according to the plan to form an adjacency matrix representing the connection relationship and communication means between nodes.

3. The extremely narrowband high-variance link adaptive transmission method according to claim 1, characterized in that: The step 1 calculates all routes that meet the hop count requirement between any two nodes using a depth-first multi-path search algorithm based on the network adjacency matrix.

4. The extremely narrowband high-variance link adaptive transmission method according to claim 1, characterized in that: The step 1 selects irrelevant or less relevant routes, deletes unreasonable or unnecessary routes, sorts the selected routes according to weights, and finally selects multiple routes with the highest rankings.

5. The method for adaptive transmission of an extremely narrowband high-variance link according to claim 1, characterized in that In the step 2, the network switching device of each node searches the dynamic routing table and static routing table stored in itself, and adopts a broadband and narrowband fusion routing mechanism, that is, using the narrowband channel static routing table as a basis and relying on the fiber broadband channel reachable node routing table as an auxiliary.

6. The extremely narrowband high-variance link adaptive transmission method according to claim 5, characterized in that: The narrowband channel is based on a pre-planned static routing strategy. During use, when a node or link is damaged, an intelligent perception algorithm of minimum fault set link state reasoning is adopted to adjust the routing relationship of related nodes based on centralized control.

7. The extremely narrowband high-variance link adaptive transmission method according to claim 1, characterized in that: The step 2 realizes the integration of narrowband channel static networking and broadband channel dynamic networking through network and link quality identification, and realizes the reasonable adaptation of service transmission strategy and bearer link.

8. The extremely narrowband high-variance link adaptive transmission method according to claim 1, characterized in that: The step three can automatically select serial / parallel transmission mode according to message type and priority through multi-route, multi-means, and multi-link complementary backup, and perform hop-by-hop or cross-hop transmission according to node deployment location and wireless means characteristics.

9. The extremely narrowband high-variance link adaptive transmission method according to claim 1, characterized in that: The step 4 uses space-based, ground-based, and underwater multi-type heterogeneous communication means, based on duplex and half-duplex communication modes, integrating on-demand and broadcast mechanisms, covering burst link establishment to normal continuous communication, and realizing the integration of highly differentiated means of transmission capacity from bit level to gigabit level.

10. A computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the method according to any one of claims 1 to 9.

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