Wi-Fi Circuitry Interference Reduction with NR Session State
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Solution Overview
Problem
Modern wireless devices experience significant signal interference between New Radio (NR) and Wi-Fi circuitries when operating in overlapping or adjacent frequency bands, leading to degraded RF performance and user experience.
Innovation Solution
A method is introduced where the Wi-Fi circuitry sends session establishment request information to the NR circuitry, and based on the response, adjusts its working state to minimize interference by determining the NR circuitry's state and adjusting its transmission and reception modes accordingly, including power back-off and synchronization strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If NR circuitry and Wi-Fi circuitry work in overlapping frequency bands simultaneously, then data transmission capability is improved, but RF performance is degraded due to mutual interference
Solution Approach 1:
The system performs preliminary actions by establishing a session between NR circuitry and Wi-Fi circuitry before actual data transmission. The session establishment request is sent beforehand, and based on the response (including interference information), the working state is pre-configured to avoid or minimize interference during subsequent operations.
Solution Approach 2:
The Wi-Fi circuitry's working state is made dynamic rather than fixed. It can switch between different states (first state for normal operation, second state for reduced interference) based on real-time interference conditions and NR circuitry status, allowing adaptive optimization of RF performance.
2Productivity
If Wi-Fi circuitry operates in normal mode during NR uplink transmission, then Wi-Fi data transmission is maintained, but desense degradation occurs exceeding 40dB
Solution Approach 1:
The Wi-Fi circuitry dynamically adjusts its operating state based on detected interference conditions. When NR uplink transmission is detected, the system can switch to a second state that reduces Wi-Fi transmission power or modifies operating parameters, thereby minimizing desense degradation while maintaining acceptable data transmission capability.
Solution Approach 2:
The system changes operating parameters of the Wi-Fi circuitry such as transmission power, bandwidth, or modulation scheme based on the detected interference level and NR circuitry state. This parameter adjustment reduces the harmful desense effect while preserving Wi-Fi functionality.
3Reliability
If session establishment protocol is implemented to reduce interference, then RF performance is improved, but system complexity increases
Solution Approach 1:
The session establishment protocol merges the interference avoidance function with the existing NR and Wi-Fi operational frameworks. By combining session management with the existing circuitry interaction mechanisms, the system reduces additional complexity while achieving improved RF performance through coordinated operation.
Data Source
AI summary
A method for reducing signal interference and related products are provided. The method is applied to a wireless fidelity (Wi-Fi) circuitry of an electronic device. The method includes the following. Send session establishment request information to a new radio (NR) circuitry. Receive session establishment response information from the NR circuitry. Set a working state of the Wi-Fi circuitry to a first state if it is determined, according to the session establishment response information, that there is signal interference between the Wi-Fi circuitry and the NR circuitry, and a current state of the NR circuitry is an idle state. Adjust the working state of the Wi-Fi circuitry to a second state from the first state if there is still signal interference between the Wi-Fi circuitry and the NR circuitry and the current state of the NR circuitry is a connected state.