Secure RF Sensing Waveforms With Split Scrambling Parameters
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
5G wireless communication systems are vulnerable to man-in-the-middle (MITM) attacks, which compromise RF sensing and communication operations, and interference from multiple radar systems degrades detection performance.
Innovation Solution
Implementing secure RF sensing waveforms, such as frequency modulated continuous wave (FMCW) signals, with separate transmissions of configuration parameters before and after the waveform, including scrambling information to prevent MITM attacks and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If RF sensing signals are transmitted without separate scrambling parameter transmission, then device complexity is reduced, but security against MITM attacks deteriorates
Solution Approach 1:
The configuration parameters are segmented into two separate transmissions: a first set of parameters transmitted before the RF sensing waveform, and a second set of scrambling parameters transmitted after the waveform. This segmentation ensures that the scrambling parameters are not vulnerable to MITM attacks during initial configuration, while maintaining manageable device complexity through structured parameter delivery.
2Area of stationary object
If multiple radar signals operate in congested areas, then coverage area is increased, but detection precision deteriorates due to interference
Solution Approach 1:
The system dynamically changes signal parameters by applying different scrambling sequences to RF sensing waveforms transmitted in congested areas. This parameter variation allows multiple radar signals to coexist by distinguishing them through unique scrambling codes, maintaining detection precision while preserving extended coverage area capabilities.
Data Source
AI summary
Techniques are provided for generating secure radio frequency (RF) sensing waveforms to reduce the risk of a man-in-the-middle (MITM) attack for positioning, sensing and communications. An example method for transmitting a secure radio frequency sensing waveform includes transmitting a first set of parameters including timing information or frequency information associated with a radio frequency sensing waveform, transmitting the radio frequency sensing waveform, and transmitting a second set of parameters including scrambling information associated with the radio frequency sensing waveform.