Antenna Element Phase Adjustment for 5G Interference Mitigation

The patent detects interference and PIM signals in the intermediate region and converts these harmful signals into useful information by using them as reference signals for generating cancellation signals. The harmful interference is transformed into a basis for creating corrective signals that when combined with received signals, eliminate the interference effect, thereby converting a harmful factor into a beneficial cancellation mechanism

The patent introduces an intermediate region detection mechanism that acts as a mediator between near-field and far-field regions. This intermediate region serves as a transition zone where interference signals are detected and processed before being used to generate cancellation signals, providing a bridging mechanism that resolves the conflict between multiple wireless services operating in close proximity

The patent extracts the harmful PIM and interference signals from the mixed received signals by detecting them in the intermediate region. Once extracted as identifiable reference signals, these harmful components are separated from the useful signals and used to generate cancellation signals, effectively removing their harmful impact while maintaining compact antenna spacing

The patent moves the detection and analysis of interference signals from traditional near-field or far-field regions into the intermediate region dimension. This dimensional shift allows for a new perspective on signal separation, enabling the system to identify and cancel PIM signals that would be indistinguishable in conventional detection regions, thereby allowing closer antenna placement without increased interference

The system uses the detected interference and PIM signals themselves as reference signals to generate the cancellation signals needed. This self-service approach means the harmful signals provide their own cancellation mechanism, eliminating the need for external reference signals or complex training sequences, thereby reducing system complexity while improving SINR

The patent implements a feedback mechanism where detected interference signals are fed back into the system to generate cancellation signals. This closed-loop feedback process continuously adapts to changing interference conditions, maintaining high SINR performance while using the interference signals themselves as the feedback reference, thereby simplifying the overall system architecture