Adaptive Learning Rate Tuning Algorithm for In-Band Full-Duplex Tuning

Transmission and reception of signals in the same frequency band often lead to signal interference, diminishing the clarity and integrity of the signal. This problem is inherent in wireless communications where available frequency bands are limited especially, posing a challenge to effective network communication. The need for a technology to effectively mitigate such interference is paramount for improved signal quality. Existing methods to tackle this issue often fail to offer dynamically adaptive solutions that can match the variable nature of signal interference. Usually, these methods employ static cancellation coefficients, which lack flexibility and adaptability to changing interference conditions. This technique frequently results in signal degradation and reduced communication efficiency.

Technology Description

This system is designed to tackle signal interference (SI) in concurrent signal transmission and reception within a single frequency band. It possesses a transceiver that sends and receives signals simultaneously, indirectly contributing to signal interference between transmitted and received signals. To deal with this interference, an SI canceller is integrated into the system, which uses an array of cancellation coefficients to generate a mitigating signal. What sets this system apart is its capability to iteratively fine-tune these cancellation coefficients by leveraging a step factor. This step factor is determined by a cancellation error gradient and one or more factors such as tunable coefficient step aggressiveness and a time-based forgetting factor. The system prompts the SI canceller to cancel the interference by utilizing these finely-tuned cancellation coefficients, conferring superior control and precision to signal interference mitigation.