US20260031944
2026-01-29
Electricity
H04L5/0048
The document outlines a method and system for mitigating interference from cellular base stations, particularly in the context of 5G technology. It describes a process for receiving wireless signals on multiple antennas, identifying the allocation and modulation of data and reference signals, and reconstructing a denoised symbol to estimate interference contributions. This denoised symbol is then subtracted from the received signal on each antenna to produce a cleaner, residual signal.
The method involves several key steps: receiving a wireless signal, detecting its modulation and allocation, and isolating the interference. By reconstructing the denoised symbol, which estimates the interference, the system can subtract this from the original signal, leaving a residual signal that is less affected by the interference. This process is performed on an antenna-by-antenna basis, ensuring precise interference cancellation.
This technology is particularly relevant for systems affected by 5G interference, such as radar systems and other non-5G RF systems. By reducing interference, these systems can maintain their sensitivity and performance, whether in detecting objects or ensuring clear communication links. The method leverages the structure of 5G downlink waveforms to achieve effective interference cancellation.
The development of this technology was supported by the U.S. Air Force under contract FA8702-15-D-0001. As a result, the government holds certain rights to the invention, highlighting its strategic importance in military and other government applications.
The document includes several figures illustrating the system architecture and processes. These figures depict the signal cancellation module, synchronization blocks, and flowcharts of the process. They serve as a visual guide to understanding the technology's implementation and its effectiveness in reducing cellular signal interference.