Dynamic RF Coexistence Manager for Interference Mitigation
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Solution Overview
Problem
Communication devices face interference issues due to the coexistence of RF signals from different wireless communication standards like LTE, WLAN, and Bluetooth, leading to degraded performance, as filters' characteristics change with operating conditions, affecting frequency domain filtering and requiring a dynamic solution for coexistence.
Innovation Solution
Implementing a dynamic space, frequency, and time domain coexistence system using a coexistence manager and assistant to monitor and adjust filter characteristics and transmission configurations, enabling high-speed communication links to quickly respond to changes in operating conditions and coordinate time domain coexistence based on frequency domain characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If frequency domain filtering is used to reduce interference between RF signals, then interference reduction is achieved, but filter characteristics change with operating conditions leading to increased interference
Solution Approach 1:
The patent implements dynamic coexistence management that continuously monitors operating conditions and adjusts transmission configurations in real-time. The coexistence manager and assistant dynamically modify filter characteristics, transmission power, and timing based on current operating conditions, transforming static filtering into an adaptive system that maintains effectiveness across varying conditions.
Solution Approach 2:
The system changes multiple parameters including filter characteristics, transmission power levels, and timing configurations to optimize coexistence. By dynamically adjusting these parameters based on monitored operating conditions, the system maintains interference reduction effectiveness despite changes in the RF environment.
2Adaptability or versatility
If multiple wireless communication standards operate simultaneously, then communication versatility is improved, but mutual interference between RF signals degrades performance
Solution Approach 1:
The patent introduces a coexistence manager and coexistence assistant as intermediary components that mediate between multiple wireless communication standards. These intermediaries monitor operating conditions, coordinate transmission configurations, and adjust parameters to enable multiple standards to operate simultaneously with minimal mutual interference.
Solution Approach 2:
The system dynamically coordinates multiple communication standards by continuously monitoring operating conditions and adjusting transmission configurations in real-time. This dynamic coordination allows versatile multi-standard operation while actively managing and reducing mutual interference between different RF signals.
3Device complexity
If filter characteristics are fixed, then device complexity is reduced, but responsiveness to changes in operating conditions deteriorates
Solution Approach 1:
The patent implements a dynamic coexistence management system that automatically monitors operating conditions and adjusts filter characteristics and transmission configurations in real-time. This dynamic approach replaces fixed configurations with adaptive control, improving responsiveness without requiring complex manual reconfiguration.
Solution Approach 2:
The system incorporates feedback mechanisms where the coexistence manager and assistant continuously monitor operating conditions and use this information to automatically adjust filter characteristics and transmission parameters. This closed-loop feedback system enables rapid response to changing conditions while maintaining manageable device complexity through automated control.
Data Source
AI summary
Various methods and systems are provided for space, frequency and time domain coexistence of RF signals. In one example, among others, a communication device includes a coexistence manager capable of monitoring operating conditions of a cellular modem and a coexistence assistant capable of monitoring operating conditions of a wireless connectivity unit. The coexistence manager is capable of modifying operation of the modem and/or unit based on an operating condition change. In another example, a method includes detecting a change in antenna isolation and/or operating temperature of a FE filter, determining filtering characteristics of the FE filter based at least in part upon the change, and modifying communications of coexisting communication protocols based at least in part upon the filtering characteristics. In another example, a TX/RX configuration for coexisting communication protocols is determined and communications in a protocol is modified based at least in part upon the TX/RX configuration.