Compound TRANSEC Key Generation for 5G MIMO Security
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Solution Overview
Problem
Military-grade radio platforms are not intuitively compatible with fifth-generation (5G) cellular communications systems, lacking sufficient over-the-air transmission security to ensure low probability of interception and detection, despite the high-speed and high-capacity capabilities of 5G architectures.
Innovation Solution
A multi-user multiple-input multiple-output (MIMO) module is integrated into 5G communications platforms, utilizing control processors with directional MIMO antenna elements to generate compound transmission security keys through frequency hopping, orthogonality hopping, simulated multipath hopping, and beamforming operations, dynamically adjusting power distribution among antenna elements based on receiver feedback to evade jammers and enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If military SDR platforms are retrofitted to 5G protocols, then compatibility with 5G architectures is improved, but transmission security and low probability of interception/detection are degraded
Solution Approach 1:
The system dynamically adjusts transmission parameters including frequency hopping patterns, MIMO antenna element activation, and power distribution among antenna elements based on channel conditions and detected jammers, making the transmission security adaptive rather than static
Solution Approach 2:
The compound TRANSEC key changes multiple transmission parameters simultaneously including frequency offsets, MIMO antenna element selections, and power levels, creating a multi-dimensional security approach that evolves with each frame transmission
2Reliability
If frequency hopping and MIMO operations are used to enhance security, then transmission security is improved, but device complexity and computational requirements are increased
Solution Approach 1:
The patent combines frequency hopping, MIMO antenna selection, and power distribution into a single compound TRANSEC key generation process, where one key controls multiple transmission parameters simultaneously, reducing the number of separate security mechanisms needed
Solution Approach 2:
The system uses receiver feedback about channel conditions and jammer detection to automatically adjust the compound TRANSEC key for subsequent transmissions, enabling the system to self-adapt without external intervention
Data Source
AI summary
A multi-user (MU) multiple-input/multiple-output (MU MIMO) module for a fifth-generation (5G) software-defined radio (SDR) network environment is disclosed. In embodiments, the MU MIMO module of a transmitting SDR system of a 5G mobile ad hoc network (MANET) or other peer-to-peer directional network receives feedback from a receiving SDR system based on a prior or current frame and generates, based on the feedback, a compound transmission security (TRANSEC) encryption key for a subsequent frame. The compound TRANSEC encryption key encrypts the transmission of the subsequent frame through a combination of frequency-hopping encryption codes, orthogonality-hopping encryption codes, and dynamic pseudorandom distribution of transmitting power among antenna elements to simulate multipath hopping. The SDR system may include an antenna controller capable of managing dynamic power distribution according to the compound TRANSEC encryption keys as well as directionality shifts and beamforming operations to evade jammers detected within the 5G network environment.