Backbone-level destroy-resistant communication system and method based on heterogeneous biplanes
By constructing a heterogeneous dual-plane communication system, the problem of network interruption in backbone communication networks under extreme environments was solved, and efficient and economical seamless service switching and continuous transmission of critical services were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE 54TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
- Filing Date
- 2026-01-21
- Publication Date
- 2026-05-01
AI Technical Summary
Existing backbone communication networks are vulnerable to natural disasters or extreme environments due to the fragility of fixed infrastructure, leading to network outages. They lack a deep integration design and seamless switching mechanism between high-capacity conventional communication networks and highly survivable emergency networks.
Construct a heterogeneous dual-plane communication system, including a high-bandwidth broadband network transmission plane and a narrowband network transmission plane with multiple long-distance wireless links. Through dual-plane collaborative transmission equipment, realize intelligent switching and seamless transfer of service data, ensure efficient transmission of critical services under normal conditions, and automatically switch to the narrowband plane when the broadband plane is unavailable.
It achieves high network survivability and resilience, avoids the vulnerability of a single technology system, is economical and efficient, and can automatically and seamlessly switch over in the event of network failure, ensuring the continuity of critical services.
Smart Images
Figure CN121967196A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of communication network technology, and specifically to a backbone-level survivable communication system and method based on heterogeneous dual-plane architecture. Background Technology
[0002] The normal operation of modern society relies heavily on stable, high-speed communication networks. Currently, backbone communication networks are mainly built upon wired fixed infrastructure such as fiber optic cables, routers, and switches, forming a high-bandwidth, low-latency broadband network transmission plane capable of carrying massive amounts of daily business data. However, when faced with natural disasters (such as earthquakes and floods), human-caused damage, or extreme conflict environments, the fixed fiber optic cables, equipment rooms, and other infrastructure of such networks are extremely vulnerable and easily suffer large-scale damage, leading to network outages and severe communication paralysis.
[0003] To address the above problems, existing technologies typically employ the following methods: 1. Wired network redundancy backup: This method improves reliability by deploying multiple physically isolated fiber optic routes and building backup core data centers. However, this method is extremely costly, and in the face of widespread disasters, homogeneous fixed facilities may be destroyed simultaneously, limiting its backup effectiveness.
[0004] 2. Satellite Communication: Using satellite communication as a backup for backbone transmission. While this method offers some flexibility, communication satellites are high-value assets in orbit, and their location information is publicly available or easily detected. In extreme cases, they are highly susceptible to targeted jamming or physical destruction, leading to the instantaneous failure of the entire communication system.
[0005] 3. Wireless Ad Hoc Networks: These employ mobile ad hoc networks (MANETs), etc. While highly flexible, these networks typically have short transmission distances, low bandwidth, and limited network size, making them unsuitable as reliable backups for national or regional backbone networks.
[0006] In summary, existing technical solutions are independent and have significant limitations: on the one hand, there is a lack of a design that can deeply integrate high-capacity conventional communication networks with high-survivability emergency communication networks at the architectural level; the normal network and the emergency backup network are often isolated from each other and cannot form an organic whole. On the other hand, there is a lack of a mechanism that can automatically and intelligently switch critical service flows between the conventional and emergency planes based on network status under this integrated architecture. Therefore, there is an urgent need to propose a backbone-level resilient communication system solution that can overcome the vulnerability of fixed infrastructure, intelligently coordinate with existing broadband networks, and ensure the absolute continuity of critical services. Summary of the Invention
[0007] The purpose of this invention is to overcome the shortcomings of existing technologies and propose a backbone-level resilient communication system and method based on heterogeneous dual-plane architecture. By constructing a "broadband network transmission plane" composed of high-bandwidth fixed infrastructure and a "narrowband network transmission plane" composed of multiple long-distance wireless links, heterogeneous redundancy of the two planes is achieved. Under normal conditions, the broadband plane efficiently carries services; when the broadband plane is damaged and unavailable, the narrowband plane automatically takes over, ensuring uninterrupted critical emergency communications, thereby greatly improving the survivability and resilience of the entire communication network.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: A backbone-level survivability communication system based on heterogeneous dual planes includes dual-plane cooperative transmission equipment, a broadband transmission plane, and a narrowband transmission plane; When the dual-plane collaborative transmission device acts as a transmitting node, it receives service data sent by the service system, parses service priorities, identifies service types, and detects the network status of the broadband and narrowband transmission planes in real time. Based on the service priority and the detected network status, it decides the transmission method for each service data packet or data stream. When the broadband transmission plane is available, it encapsulates the service data according to the broadband transmission protocol and transmits it to the broadband transmission plane. When the broadband transmission plane is unavailable, it determines whether it is an emergency service based on the service priority label. If it is an emergency service, it encapsulates the service data according to the narrowband transmission protocol and transmits it to the narrowband access adaptation unit. If it is not an emergency service, it refuses to send it. When acting as a receiving node, it receives service data packets sent by the broadband or narrowband transmission plane, decapsulates them, and then sends them to the service system. The broadband transmission plane is used to transmit service data packets to the destination node's dual-plane collaborative transmission equipment according to routing rules; The narrowband transmission plane is used to transmit service data packets to the destination node's dual-plane collaborative transmission device according to routing rules and different wireless communication device interface protocols.
[0009] Furthermore, the dual-plane collaborative transmission equipment includes a service analysis and processing unit, an intelligent routing and switching module, a protocol conversion unit, a broadband access adaptation unit, a narrowband access adaptation unit, and a network status monitoring unit; The business analysis and processing unit is used to receive business data issued by the business system, parse the data packet priority, identify the business type, and mark the business priority label, and transmit the business data packet and the corresponding business priority label to the intelligent routing and switching module. The network status monitoring unit is used to detect the network status of the broadband transmission plane and the narrowband transmission plane in real time, and transmit the detected dual-plane network status to the intelligent routing and switching module. The intelligent routing and switching module includes a policy library and a routing selection unit. The policy library stores service priority mappings and routing rules. The routing selection unit queries the policy library based on service priority tags and dual-plane network status to dynamically decide the transmission method for each service data packet or data stream. When the broadband transmission plane is available, the service data packet is encapsulated by the protocol conversion unit and transmitted to the broadband access adaptation unit. When the broadband transmission plane is unavailable, the module determines whether it is an emergency service based on the service priority tag. If it is an emergency service, the service data packet is encapsulated by the protocol conversion unit and transmitted to the narrowband access adaptation unit. If it is not an emergency service, the module refuses to send the data. The broadband access adaptation unit is used to transmit service data packets sent by the intelligent routing and switching module to the broadband transmission plane according to the interface requirements with the broadband network transmission plane; it is also used to receive service data packets sent by the broadband transmission plane, and transmit them to the service system after decapsulation by the protocol conversion unit. The narrowband access adaptation unit is used to transmit service data packets sent by the intelligent routing and switching module to the narrowband transmission plane according to the interface requirements with the narrowband network transmission plane; it is also used to receive service data packets sent by the narrowband transmission plane, and transmit them to the service system after decapsulation by the protocol conversion unit.
[0010] A backbone-level survivability communication method based on the above system includes the following steps: Step 1: The business analysis and processing unit receives business data sent by the business system, parses the data packet priority, identifies the business type, and marks the business priority label; at the same time, the network status monitoring unit detects the network status of the broadband transmission plane and the narrowband transmission plane in real time. Step 2: The routing selection unit in the intelligent routing and switching module dynamically decides the transmission mode of each service data packet or data stream based on the service priority label and the dual-plane network status query strategy library. If the broadband transmission plane is available, steps 3-5 are executed. If the broadband transmission plane is unavailable, the service priority label is used to determine whether it is an emergency service. If it is an emergency service, steps 6-8 are executed. If it is not an emergency service, the transmission is rejected. Step 3: After the service data packet is encapsulated according to the broadband network protocol by the protocol conversion unit, it is transmitted to the broadband transmission plane through the broadband access adaptation unit. Step 4: The broadband transmission plane transmits the service data packets to the destination node's dual-plane collaborative transmission device according to the routing rules; Step 5: The broadband access adaptation unit in the dual-plane cooperative transmission device of the destination node receives the service data packet, and after being decapsulated by the protocol conversion unit, it is transmitted to the service system. Step 6: After the service data packet is encapsulated according to the narrowband network protocol by the protocol conversion unit, it is transmitted to the narrowband transmission plane through the narrowband access adaptation unit. Step 7: The narrowband transmission plane transmits the service data packets to the destination node's dual-plane collaborative transmission device according to the routing rules; Step 8: The narrowband access adapter unit in the dual-plane cooperative transmission device of the destination node receives the service data packet, and after being decapsulated by the protocol conversion unit, it is transmitted to the service system.
[0011] Compared with the prior art, the present invention has the following significant advantages: 1. Extremely high survivability: Through a heterogeneous dual-plane design, the vulnerability of a single technology system and homogeneous infrastructure is avoided. Even if the broadband plane, which relies on fixed facilities, is completely paralyzed, the independently constructed and mobile narrowband wireless plane can still provide basic communication capabilities, achieving network failover and resilience.
[0012] 2. Combining economy and efficiency: It eliminates the need for costly, homogeneous physical redundancy across the entire broadband network. Only a relatively low-cost narrowband backup plane needs to be built for user access nodes and critical network nodes to ensure the protection of critical services with the highest catastrophic requirements, resulting in outstanding cost-effectiveness.
[0013] 3. Intelligent switching with business awareness: Through the routing decision unit in the dual-plane transmission control node, the transition from "circuit-level backup" to "business-level backup" is realized, which can accurately protect critical business and realize automatic and seamless switching between planes, improving the utilization efficiency and response speed of backup resources.
[0014] 4. Smooth evolution and compatibility: The architecture of this invention can be deeply integrated with existing communication network facilities. It can be achieved by deploying dual-plane transmission control equipment at the user access node, protecting existing investments and facilitating implementation and promotion. Attached Figure Description
[0015] Figure 1 This is a basic architecture diagram of a backbone-level survivable communication system based on heterogeneous dual planes according to the present invention.
[0016] Figure 2 This is a schematic diagram illustrating the construction of a backbone-level survivable communication system based on heterogeneous dual planes according to the present invention.
[0017] Figure 3 This is a basic flowchart of a backbone-level survivability communication method based on heterogeneous dual planes according to the present invention. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example
[0019] According to such Figure 1The diagram shows the basic architecture of the system. The backbone-level survivable communication system constructed in this invention includes two logically independent but physically heterogeneous transmission planes, as shown below. Figure 2 As shown.
[0020] 1. The broadband transmission plane relies on the existing national optical fiber network and consists of routing and switching equipment such as core routers and access routers, as well as optical transmission equipment, forming a high-speed mesh network connecting major cities and core business areas. This plane is designed for high-speed, high-capacity, and low-latency transmission of various daily business data and is the primary plane used by the network under normal conditions.
[0021] 2. The narrowband transmission plane is independently constructed, including network communication control equipment and communication transmission equipment. Narrowband network transmission plane communication nodes are deployed at user access nodes and key network nodes. Depending on the deployment node plan, one or more communication methods can be deployed, such as scattering, meteor trails, medium-long waves, short waves, and narrowband satellites. Corresponding communication transmission equipment is deployed and connected to the network communication control equipment, which is responsible for routing control and data forwarding of the narrowband transmission plane. This plane is characterized by fewer network relay nodes, mobile and rapid deployment of node equipment, and the comprehensive use of multiple methods. It possesses anti-interference and anti-physical destruction capabilities and can maintain communication in harsh environments. Its communication bandwidth is significantly lower than that of the broadband plane and is only used for transmitting low-bandwidth critical services such as command, dispatch, and critical sensor information in emergency situations.
[0022] 3. The dual-plane collaborative transmission equipment is deployed at user access nodes and key network nodes. This node connects to the upper-layer business system and simultaneously connects to routers (belonging to the broadband transmission plane) and network communication control equipment (belonging to the narrowband transmission plane) to realize functions such as business data processing, transmission plane selection and protocol adaptation.
[0023] The specific processing procedure is as follows: The dual-plane collaborative transmission equipment includes a service analysis and processing unit, an intelligent routing and switching module, a protocol conversion unit, a broadband access adaptation unit, a narrowband access adaptation unit, and a network status monitoring unit. The business analysis and processing unit is used to receive business data issued by the business system, parse the data packet priority, identify the business type, and mark the business priority label, and transmit the business data packet and the corresponding business priority label to the intelligent routing and switching module. The network status monitoring unit is used to detect the network status of both the broadband and narrowband transmission planes in real time, and transmits the detected dual-plane network status to the intelligent routing and switching module. For the broadband transmission plane, a bidirectional forwarding detection (BFD) protocol is used to achieve sub-second fault detection, and a Transient Wave Performance Measurement Protocol (TWAMP) is used to actively measure latency, jitter, and packet loss rate. For the narrowband transmission plane, health prediction is performed by reading the physical layer parameters (such as signal-to-noise ratio and bit error rate) of the communication transmission equipment, and a lightweight protection message method is used to verify logical connectivity and estimate transmission performance with almost no consumption of service bandwidth. All detection results are normalized into a unified link health level within the unit, serving as the core input of the intelligent routing and switching module. The intelligent routing and switching module includes a policy library and a routing selection unit. The policy library stores service priority mappings and routing rules. The routing selection unit queries the policy library based on service priority tags and dual-plane network status to dynamically decide the transmission method for each service data packet or data stream. When the broadband transmission plane is available, the service data packet is encapsulated by the protocol conversion unit and transmitted to the broadband access adaptation unit. When the broadband transmission plane is unavailable, the module determines whether it is an emergency service based on the service priority tag. If it is an emergency service, the service data packet is encapsulated by the protocol conversion unit and transmitted to the narrowband access adaptation unit. If it is not an emergency service, the module refuses to send the data. The broadband access adaptation unit is used to transmit service data packets sent by the intelligent routing and switching module to the broadband transmission plane according to the interface requirements with the broadband network transmission plane; it is also used to receive service data packets sent by the broadband transmission plane, and transmit them to the service system after decapsulation by the protocol conversion unit. The narrowband access adaptation unit is used to transmit service data packets sent by the intelligent routing and switching module to the narrowband transmission plane according to the interface requirements with the narrowband network transmission plane; it is also used to receive service data packets sent by the narrowband transmission plane, and transmit them to the service system after decapsulation by the protocol conversion unit. The broadband transmission plane is used to transmit service data packets to the destination node's dual-plane collaborative transmission equipment according to routing rules; The narrowband transmission plane is used to transmit service data packets to the destination node's dual-plane collaborative transmission device according to routing rules and different wireless communication device interface protocols.
[0024] Furthermore, such as Figure 3 As shown, a backbone-level survivability communication method based on the above system has the following end-to-end data transmission process: Step 1: The service analysis and processing unit in the dual-plane collaborative transmission device receives service data from the service system, parses data packet priorities, identifies service types, and labels service priorities. Simultaneously, the network status monitoring unit detects the network status of both the broadband and narrowband transmission planes in real time. For the broadband transmission plane, a bidirectional forwarding detection (BFD) protocol is used to achieve sub-second fault detection, and the Transient Wi-Fi Protocol (TWAMP) is used to actively measure latency, jitter, and packet loss rate. For the narrowband transmission plane, health prediction is performed by reading the physical layer parameters of the communication transmission equipment (such as signal-to-noise ratio and bit error rate), and a lightweight protection message method is used to verify logical connectivity and estimate transmission performance with almost no bandwidth consumption. All detection results are normalized into a unified link health level within the unit, serving as the core input to the intelligent routing and switching module.
[0025] Step 2: The routing selection unit in the intelligent routing and switching module dynamically decides the transmission mode of each service data packet or data stream based on the service priority label and the dual-plane network status query strategy library. If the broadband transmission plane is available, steps 3-5 are executed. If the broadband transmission plane is unavailable, the service priority label is used to determine whether it is an emergency service. If it is an emergency service, steps 6-8 are executed. If it is not an emergency service, the transmission is rejected.
[0026] Step 3: After the service data packet is encapsulated by the protocol conversion unit according to the broadband network protocol, it is sent to the broadband access adaptation unit. The broadband access adaptation unit transmits the service data packet to the routing and switching equipment of the broadband transmission plane according to the interface requirements with the broadband transmission plane. Step 4: The routing and switching equipment of the broadband transmission plane transmits the service data packets to the destination node dual-plane collaborative transmission equipment according to the routing rules via the routing and switching equipment, optical transmission equipment and optical cable. Step 5: The broadband access adaptation unit in the dual-plane cooperative transmission device of the destination node receives the service data packet, decapsulates it through the protocol conversion unit, and then transmits it to the service system, thus completing the transmission of service data in the broadband network transmission plane. Step 6: After the service data packet is encapsulated by the protocol conversion unit according to the narrowband network protocol, it is sent to the narrowband access adaptation unit. The narrowband access adaptation unit transmits the service data packet to the network communication control equipment of the narrowband transmission plane according to the interface requirements with the narrowband transmission plane. Step 7: The narrowband transmission plane network communication control device transmits the service data packets to the destination node dual-plane collaborative transmission device according to the routing rules and different wireless communication device interface protocols, via the communication transmission equipment and different communication methods. Step 8: The narrowband access adapter unit in the dual-plane cooperative transmission device of the destination node receives the service data packet, and after being decapsulated by the protocol conversion unit, it transmits it to the service system, thus completing the transmission of data in the narrowband network transmission plane.
Claims
1. A backbone-level survivability communication system based on heterogeneous dual-plane architecture, characterized in that, This includes dual-plane cooperative transmission equipment, broadband transmission plane, and narrowband transmission plane; When the dual-plane collaborative transmission device acts as a transmitting node, it receives service data sent by the service system, parses service priorities, identifies service types, and detects the network status of the broadband and narrowband transmission planes in real time. Based on the service priority and the detected network status, it decides the transmission method for each service data packet or data stream. When the broadband transmission plane is available, it encapsulates the service data according to the broadband transmission protocol and transmits it to the broadband transmission plane. When the broadband transmission plane is unavailable, it determines whether it is an emergency service based on the service priority label. If it is an emergency service, it encapsulates the service data according to the narrowband transmission protocol and transmits it to the narrowband access adaptation unit. If it is not an emergency service, it refuses to send it. When acting as a receiving node, it receives service data packets sent by the broadband or narrowband transmission plane, decapsulates them, and then sends them to the service system. The broadband transmission plane is used to transmit service data packets to the destination node's dual-plane collaborative transmission equipment according to routing rules; The narrowband transmission plane is used to transmit service data packets to the destination node's dual-plane collaborative transmission device according to routing rules and different wireless communication device interface protocols.
2. The backbone-level survivable communication network system based on heterogeneous dual-plane architecture according to claim 1, characterized in that, The dual-plane collaborative transmission equipment includes a service analysis and processing unit, an intelligent routing and switching module, a protocol conversion unit, a broadband access adaptation unit, a narrowband access adaptation unit, and a network status monitoring unit. The business analysis and processing unit is used to receive business data issued by the business system, parse the data packet priority, identify the business type, and mark the business priority label, and transmit the business data packet and the corresponding business priority label to the intelligent routing and switching module. The network status monitoring unit is used to detect the network status of the broadband transmission plane and the narrowband transmission plane in real time, and transmit the detected dual-plane network status to the intelligent routing and switching module. The intelligent routing and switching module includes a policy library and a routing selection unit. The policy library stores service priority mappings and routing rules. The routing selection unit queries the policy library based on service priority labels and dual-plane network status to dynamically decide the transmission method of each service data packet or data stream. When the broadband transmission plane is determined to be available, the service data packet is encapsulated by the protocol conversion unit and transmitted to the broadband access adaptation unit. When the broadband transmission plane is determined to be unavailable, the service priority label is used to determine whether it is an emergency service. If it is an emergency service, the service data packet is encapsulated by the protocol conversion unit and transmitted to the narrowband access adaptation unit. If it is not an emergency service, the transmission is rejected. The broadband access adaptation unit is used to transmit service data packets sent by the intelligent routing and switching module to the broadband transmission plane according to the interface requirements with the broadband network transmission plane; it is also used to receive service data packets sent by the broadband transmission plane, and transmit them to the service system after decapsulation by the protocol conversion unit. The narrowband access adaptation unit is used to transmit service data packets sent by the intelligent routing and switching module to the narrowband transmission plane according to the interface requirements with the narrowband network transmission plane; it is also used to receive service data packets sent by the narrowband transmission plane, and transmit them to the service system after decapsulation by the protocol conversion unit.
3. A backbone-level survivability communication method based on the system described in claim 2, characterized in that, Includes the following steps: Step 1: The business analysis and processing unit receives business data sent by the business system, parses the data packet priority, identifies the business type, and marks the business priority label; at the same time, the network status monitoring unit detects the network status of the broadband transmission plane and the narrowband transmission plane in real time. Step 2: The routing selection unit in the intelligent routing and switching module dynamically decides the transmission mode of each service data packet or data stream based on the service priority label and the dual-plane network status query strategy library. If the broadband transmission plane is available, steps 3-5 are executed. If the broadband transmission plane is unavailable, the service priority label is used to determine whether it is an emergency service. If it is an emergency service, steps 6-8 are executed. If it is not an emergency service, the transmission is rejected. Step 3: After the service data packet is encapsulated according to the broadband network protocol by the protocol conversion unit, it is transmitted to the broadband transmission plane through the broadband access adaptation unit. Step 4: The broadband transmission plane transmits the service data packets to the destination node's dual-plane collaborative transmission device according to the routing rules; Step 5: The broadband access adaptation unit in the dual-plane cooperative transmission device of the destination node receives the service data packet, and after being decapsulated by the protocol conversion unit, it is transmitted to the service system. Step 6: After the service data packet is encapsulated according to the narrowband network protocol by the protocol conversion unit, it is transmitted to the narrowband transmission plane through the narrowband access adaptation unit. Step 7: The narrowband transmission plane transmits the service data packets to the destination node's dual-plane collaborative transmission device according to the routing rules; Step 8: The narrowband access adapter unit in the dual-plane cooperative transmission device of the destination node receives the service data packet, and after being decapsulated by the protocol conversion unit, it is transmitted to the service system.