Radio Network Disturbance Testing via Packet Interception
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Solution Overview
Problem
Existing methods for testing radio communications networks, such as simulators, fail to validate the proper functioning of real terminal-real network pairs and do not effectively simulate external disturbances, leading to undetected malfunctions.
Innovation Solution
A method and device that simulate external disturbances by neutralizing or modifying data packets exchanged between a mobile telephone terminal and a base station, allowing for the detection and analysis of reactions to these disturbances, which includes demodulating and analyzing data packets in real-time to introduce interference or replacement data, triggering correction protocols and testing network resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real terminals and networks are tested in a simulated environment, then network operation under nominal conditions can be validated, but malfunctions that occur in real environments remain undetected
Solution Approach 1:
The patent introduces an intermediary device that positions itself between the real terminal and the real network, acting as a transparent proxy. This intermediary can selectively modify data packets without disrupting the natural interaction between terminal and network, enabling detection of real-world malfunctions while maintaining realistic operating conditions.
Solution Approach 2:
The patent creates copies of data packets exchanged between terminal and network, analyzing these copies to detect malfunctions. By copying and examining packet contents rather than directly intercepting live traffic, the system can identify anomalies without affecting the actual communication flow.
2Reliability
If data packets are intercepted and analyzed in real-time to introduce disturbances, then network resistance to external disturbances can be tested, but the complexity of the testing device increases
Solution Approach 1:
The testing device is designed with multi-functionality, combining packet capture, analysis, modification, and injection capabilities in a single integrated system. This universal approach allows the same device to perform multiple testing functions without requiring separate specialized equipment for each operation.
Solution Approach 2:
The intermediary device automatically captures, analyzes, and modifies packets without requiring manual intervention. The system self-manages the entire testing process from packet interception to disturbance injection and reaction analysis, reducing operational complexity despite the sophisticated functionality.
3Reliability
If disturbance data is sent on the downlink channel from base station to terminal, then network correction protocols can be triggered, but interference with normal communication increases
Solution Approach 1:
The patent applies disturbances selectively to specific packets rather than continuously to all communication. By targeting only chosen packets for modification and injection of disturbance data, the system tests correction protocols while minimizing interference with normal communication flows. The disturbance application is localized in time and space rather than pervasive.
Solution Approach 2:
The testing system introduces disturbances periodically or at scheduled intervals rather than continuously. This periodic approach allows normal communication to proceed uninterrupted between test injections, enabling correction protocol testing while maintaining acceptable communication quality during non-test periods.
Data Source
Figure 1~2
AI summary
The present invention relates to a method and a device for testing a radio communication network (3) in which external disturbances in the net are simulated, wherein the disturbances are integrated in a data exchange between a mobile telephone terminal (1) and a basis station (2) of the network, such that the resistance of the network (3) is tested.