Multi-Radio Wake Interval Alignment for Overlapping Band Coexistence
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Solution Overview
Problem
Interference occurs between different communication technologies operating on overlapping frequency bands, such as Wi-Fi, Bluetooth, and UWB, due to their use of unlicensed frequency bands, necessitating a method to manage wake intervals and service periods to prevent interference and maintain quality of service (QoS).
Innovation Solution
An electronic device configures and adjusts wake intervals and service periods based on the quality of service (QoS) of multiple communications, ensuring they do not overlap by aligning wake intervals and adjusting priorities when different communication connections are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication technologies (Wi-Fi, Bluetooth, UWB) operate simultaneously on overlapping frequency bands, then connectivity versatility is improved, but communication interference increases
Solution Approach 1:
The patent implements periodic wake intervals for different communication technologies where devices wake up at predetermined cycles to perform packet transmission and reception, then return to sleep mode. This periodic operation allows Wi-Fi, Bluetooth, and UWB to share frequency bands by taking turns being active, thereby maintaining connectivity versatility while preventing simultaneous interference through time-division multiplexing
Solution Approach 2:
The patent dynamically adjusts service period durations and wake intervals based on negotiated parameters between devices. The system can modify communication schedules in real-time to accommodate changing traffic requirements and interference conditions, allowing flexible coexistence of multiple communication technologies on overlapping frequency bands while maintaining optimal performance for each
2Reliability
If wake intervals and service periods are configured for multiple communications, then QoS is maintained, but device complexity increases
Solution Approach 1:
The patent merges the management of multiple communication connections by implementing a unified TWT framework that handles Wi-Fi, Bluetooth, and UWB simultaneously through a single negotiation and scheduling mechanism. This combined approach allows the device to manage multiple wake intervals and service periods through one coordinated system rather than separate independent managers, thereby maintaining QoS for each communication while reducing overall management complexity
Data Source
AI summary
A method and an apparatus for controlling communication parameters in multiple communication are provided. The apparatus includes a memory and a processor operatively coupled to the memory, wherein the memory includes instructions for allowing the processor to, set a first service period duration and a first wake interval, related to first communication, on the basis of the quality of service of the first communication, set a second service period duration and a second wake interval, related to second communication, on the basis of the quality of service of the second communication when a second communication connection having a frequency overlapping with that of the first communication is detected, determine whether the time difference between the first wake interval and the second wake interval occurs, and change, on the basis of the determination result, the first wake interval and the second wake interval to correspond to each other.