Sniffer-AP Dual Mode Device Provisioning
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Solution Overview
Problem
Existing client association methods in IoT networks face reliability issues, particularly in sniffer-based provisioning, which can fail due to unsupported frequency bands and data rates, leading to inconsistent device provisioning experiences.
Innovation Solution
Implementing a simultaneous AP-sniffer provisioning mode that allows devices to switch between sniffer and access point provisioning modes, ensuring reliable client association by continuously monitoring multiple channels and sending periodic beacons, thus providing a fallback option for sniffer-based provisioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sniffer-based provisioning is used, then device provisioning can be simplified, but reliability deteriorates due to unsupported frequency bands and data rates
Solution Approach 1:
The provisioning device dynamically switches between sniffer mode and access point mode based on detection results. Initially operating in sniffer mode for simplicity, the device transitions to access point mode when sniffer provisioning fails or is unsupported, ensuring reliable provisioning while maintaining ease of operation when conditions permit
Solution Approach 2:
The system changes operational parameters by switching between different provisioning modes (sniffer mode vs. access point mode). This parameter change allows the device to adapt to different network conditions and device capabilities, resolving the reliability issue while preserving the simplicity benefit when applicable
2Reliability
If simultaneous AP-sniffer provisioning mode is implemented, then provisioning reliability is improved, but device complexity increases
Solution Approach 1:
The provisioning process is segmented into distinct phases: initial sniffer mode operation, detection of provisioning needs, and conditional transition to access point mode. This segmentation allows the system to maintain simplicity for standard cases while providing reliable fallback mechanisms only when necessary, reducing overall perceived complexity
Solution Approach 2:
The device performs preliminary actions by attempting sniffer-based provisioning first, which is simpler and less complex. Only when this preliminary attempt fails or is determined to be unsupported does the system activate the more complex access point mode, thereby managing complexity while ensuring reliability
3Use of energy by moving object
If sniffer mode is used for client association, then energy consumption is reduced, but association reliability deteriorates
Solution Approach 1:
The device dynamically adjusts its operational mode based on provisioning success. It starts in energy-efficient sniffer mode, monitors for successful association, and only transitions to the more energy-consuming access point mode when necessary to ensure reliable association, thus optimizing the balance between energy consumption and reliability
Data Source
AI summary
The present disclosure includes systems and techniques relating to client association for provisioning devices in a communication network. In some implementations, an association request to associate with a provisioning device is received by a device operating in a sniffer provisioning mode. The device sniffs traffic over a wireless communication channel by listening to the wireless communication channel and capturing traffic on the wireless communication channel in the sniffer provisioning mode. In response to receiving the association request, the device switches to an access point (AP) provisioning mode. An association response to the association request is transmitted by the device over the wireless communication channel. Connection information for establishing a connection with an external AP is received by the device. A connection with the external AP is established by the device based on the connection information.