Coexistence Management Circuit for Wireless Interference
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Solution Overview
Problem
Wireless networks using shared channels with different communication protocols experience signal interference, reducing throughput and causing packet loss due to the co-location of radios and shared channels.
Innovation Solution
A coexistence management circuit (CMC) determines traffic priority information of one wireless network and adjusts the operating mode of another wireless network's radio to a power save mode, avoiding interference on overlapping channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple radios operate simultaneously on overlapping channels with different communication protocols, then wireless network functionality and communication versatility are improved, but signal interference increases causing throughput reduction and packet loss
Solution Approach 1:
The patent introduces a coexistence management circuit (CMC) as an intermediary component that mediates between multiple radios operating on overlapping channels. The CMC monitors channel usage, detects interference conditions, and coordinates transmission timing between different wireless networks (e.g., Wi-Fi and Bluetooth), thereby reducing signal interference while maintaining the functionality of multiple protocols
Solution Approach 2:
The patent implements periodic channel assessment and transmission scheduling where radios perform clear channel assessment (CCA) at regular intervals and transmit during designated time periods. This periodic action allows multiple networks to share overlapping channels systematically, reducing random interference while maintaining communication versatility
2Device complexity
If radios are co-located to enable compact device design, then device size and integration are improved, but signal interference between radios increases
Solution Approach 1:
The CMC serves as an intermediary that manages the interaction between co-located radios. It implements interference coordination mechanisms that allow radios to operate in close proximity by scheduling transmissions and managing channel access, thereby enabling compact device design without excessive interference
Solution Approach 2:
The patent implements dynamic transmission power adjustment and channel selection based on real-time interference conditions. The system adapts its operation by modifying transmission parameters dynamically, allowing co-located radios to share the device while minimizing mutual interference through flexible, condition-based control
3Productivity
If traffic priority information is used to determine operating modes, then throughput and communication efficiency are improved, but device complexity and control mechanisms increase
Solution Approach 1:
The patent changes operational parameters such as transmission power, channel selection, and duty cycle based on traffic priority information. High-priority traffic triggers parameters optimized for throughput, while low-priority traffic uses parameters that reduce interference, thereby improving overall productivity through parameter adaptation rather than complex control structures
Solution Approach 2:
The system implements self-service mechanisms where the CMC automatically monitors traffic patterns, determines priority levels, and adjusts operating modes without external intervention. This automation improves throughput response to traffic conditions while keeping the control mechanism integrated and relatively simple
Data Source
AI summary
A method includes determining traffic priority information of a first wireless network that includes a first radio configured to communicate according to a first communication protocol on multiple overlapping channels. The method includes determining an operating mode of a second radio as a power save operating mode based on the traffic priority information of the first wireless network. The second radio is included in a second wireless network and is configured to communicate according to a second communication protocol on the overlapping channels. The power save operating mode is configured to avoid interference on the overlapping channels with traffic in the first wireless network. The method includes operating the second radio in the determined power save operating mode.