A method and system for encrypted data transmission verification for 5G communication equipment
By collecting physical layer signal features of terminal devices in 5G air interface transmission and embedding downlink synchronization signals, combined with deep learning detection and location feature verification, the problem of low anti-counterfeiting capability and man-in-the-middle attack in terminal identity authentication is solved, and high-security and low-latency encrypted data transmission is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
The current 5G air interface transmission has low anti-counterfeiting capabilities for terminal identity authentication, making it vulnerable to man-in-the-middle attacks. Furthermore, the encryption mechanism of the higher-level protocol stack suffers from high signaling interaction overhead and high response latency, making it difficult to meet the real-time requirements in low-latency scenarios.
By collecting physical layer uplink signals during initial access of terminal devices, extracting radio frequency transient features to generate first fingerprint data, and embedding it into the reserved idle subcarriers of downlink synchronization signals after spread spectrum modulation, the location feature map is constructed by calculating the signal angle of arrival and multipath delay information using the array antenna of the base station, and the uplink response signal is analyzed by combining deep learning detection network. After verifying the matching of channel propagation features and location features, the encrypted data transmission process is initiated.
It achieves reliability and security of terminal identity authentication, effectively resists man-in-the-middle attacks, and ensures that only terminals with real physical locations and legitimate identities can access the network for encrypted communication, thereby improving the security and real-time performance of 5G air interface encrypted transmission.
Smart Images
Figure CN122420831A_ABST