P2P Channel Sequencing for Restricted DFS Environments
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Solution Overview
Problem
Wireless communication channels are increasingly congested, and some channels are restricted due to regulations, such as those requiring Dynamic Frequency Selection to avoid interfering with protected signals, which can decrease the efficiency of peer-to-peer (P2P) communications.
Innovation Solution
Devices engage in strategic roaming to avoid restricted channels or arrange channel sequences to minimize time away from them, potentially switching to alternative channels with poorer connections to maintain efficient data communications, while tracking beacon periods to resume communications quickly on restricted channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices avoid restricted channels to comply with regulations, then channel restrictions are satisfied, but communication efficiency deteriorates due to channel congestion on alternative channels
Solution Approach 1:
The patent implements dynamic channel selection where devices can switch between restricted and unrestricted channels based on real-time conditions. The system dynamically adjusts channel usage by coordinating beamforming operations with channel availability, allowing efficient use of restricted channels when appropriate while maintaining compliance when necessary.
Solution Approach 2:
The patent changes the operational parameters of wireless communication by allowing temporary use of restricted channels for specific operations like beamforming training, while maintaining regulatory compliance for general data transmission. This parameter change enables efficient communication by optimizing channel usage based on operation type rather than uniformly avoiding restricted channels.
2Reliability
If devices switch channels frequently to avoid restricted channels, then compliance with restrictions is maintained, but communication continuity deteriorates due to increased switching time
Solution Approach 1:
The patent performs preliminary coordination between devices to schedule beamforming operations during periods when restricted channels are available. By planning channel usage in advance and coordinating switching actions, the system minimizes unnecessary channel transitions while ensuring compliance with restrictions.
Solution Approach 2:
The patent merges channel switching operations with beamforming training sequences, so that channel transitions occur naturally as part of the established communication protocol rather than as separate disruptive events. This integration reduces the overall time lost to channel switching.
3Productivity
If devices dedicate more time to data exchange on restricted channels, then communication efficiency improves, but risk of violating restrictions increases
Solution Approach 1:
The patent implements feedback mechanisms where devices monitor channel conditions, beamforming performance, and regulatory compliance status in real-time. Based on this feedback, the system dynamically adjusts the duration and intensity of communications on restricted channels, maintaining efficiency while ensuring compliance through continuous monitoring and adaptation.
Data Source
AI summary
An apparatus and methods are provided for conducting wireless data communications, particularly real-time data communications, in a communication environment that includes a restricted channel (e.g., a channel subject to Dynamic Frequency Selection or DFS). Two or more mobile communication/computing devices (e.g., smart phones, tablet computers) participate in a peer-to-peer network and engage in data communications while one or more of them operate on the restricted channel (e.g., to maintain an infrastructure communication connection). Their channel sequences are configured to maximize the efficiency of the data communication while satisfying restrictions of the restricted channel or avoiding that channel, and only require them to monitor one beacon interval. One or more of the devices may strategically roam to the restricted channel or away from the restricted channel, depending on which action will provide greater communication throughput or efficiency.