Autonomous Frequency Hopping Without a Common Control Channel
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Solution Overview
Problem
Traditional frequency hopping systems face challenges such as vulnerability to interception, high error rates due to fixed hopping sequences, and increased complexity with cognitive frequency hopping, leading to communication disruptions and collisions in complex electromagnetic environments.
Innovation Solution
A common control channel-free communication method featuring integrated autonomous link establishment and frequency conversion, where communication parties autonomously establish links and update frequency parameters in real-time using spectrum sensing to adapt to electromagnetic environments, without a common control channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional frequency hopping is used, then anti-interference capability is improved, but communication reliability deteriorates due to fixed hopping sequences and disrupted frequency points
Solution Approach 1:
The patent implements dynamic frequency hopping where the hopping sequence is not predetermined but generated in real-time based on current communication needs and environmental conditions. This allows the system to adaptively change frequency points during communication, avoiding disrupted frequencies and maintaining reliable communication while preserving anti-interference capabilities.
Solution Approach 2:
The system dynamically changes frequency parameters during communication based on real-time conditions. Instead of following a fixed hopping sequence, the frequency points are adjusted adaptively, allowing the system to avoid disrupted frequencies and maintain both anti-interference capability and communication reliability.
2Object-affected harmful factors
If cognitive frequency hopping technology is used to update frequency points, then anti-interference capability is improved, but system complexity increases
Solution Approach 1:
The patent implements autonomous link establishment where communication parties independently perform spectrum sensing, generate feature parameter sets, and establish communication links without requiring complex centralized control or coordination channels. Each party autonomously selects frequency points based on local environmental assessment, reducing system complexity while maintaining anti-interference capability.
Solution Approach 2:
The patent extracts and eliminates the common control channel from the system architecture. By removing this complex coordination infrastructure and implementing distributed autonomous frequency selection, the system achieves anti-interference capability without the overhead and complexity of cognitive frequency hopping control mechanisms.
3Reliability
If autonomous link establishment with feature parameter sets is implemented, then communication reliability is improved, but information transmission overhead increases
Solution Approach 1:
The patent combines multiple communication functions into a unified autonomous link establishment process. Feature parameter sets containing frequency points, bandwidth, waveform, and modulation mode are integrated into the link setup procedure, allowing reliable communication to be established through a single coordinated exchange rather than multiple separate signaling interactions, thus managing information overhead efficiently.
Data Source
AI summary
A common control channel-free communication method and system featuring integrated autonomous link establishment and frequency conversion, belonging to the technical field of wireless communication is provided. The method comprises: autonomously establishing, by a caller communication node a two-way communication link with a responder communication node through a calling and responding mechanism; and monitoring, by the caller communication node, operating frequency points through a real-time interference detection mechanism, and autonomously updating transmitted signal feature parameters of the caller communication node at certain frequency conversion slots, so that the responder communication node can update transmitted signal feature parameters in the responder communication node after receiving the updated transmitted signal feature parameters. According to the communication method and system of the invention, the packet loss rate of the wireless communication system is reduced, and the anti-interference ability and reliability of the wireless communication system are improved.