Bluetooth Piconet Coordinator for Interference Management
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Solution Overview
Problem
In wireless network environments using shared frequency bands, such as the 2.4 GHz band, Bluetooth devices experience interference and collisions, leading to degraded radio performance due to the presence of other devices sharing the same frequency band, which hampers efficient utilization of wireless channels.
Innovation Solution
An electronic apparatus and method that utilizes an external coordinator device to periodically receive and transmit radio frequency channel state information, virtual address information, and clock information to manage and synchronize piconets, thereby minimizing interference and optimizing channel usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple Bluetooth devices operate independently in shared frequency bands, then device connectivity is maintained, but radio performance degrades due to interference and collisions
Solution Approach 1:
The patent introduces an external coordinator device as an intermediary that manages frequency channel assignments and synchronization information for multiple piconets. This coordinator receives channel state information from a server and distributes it to master devices, acting as a mediator that coordinates communication across multiple independent Bluetooth piconets to reduce interference and collisions in the shared 2.4 GHz frequency band.
2Productivity
If piconets operate independently without coordination, then device autonomy is preserved, but channel utilization efficiency decreases
Solution Approach 1:
The patent segments the coordination function by introducing a separate external coordinator device that handles frequency channel management, while individual piconets maintain their internal autonomy for device connectivity. This segmentation allows efficient channel utilization across multiple piconets without requiring each device to implement complex coordination logic, as the coordinator centralizes this management function.
3Reliability
If frequency channels are assigned without external coordination, then setup simplicity is maintained, but packet error rates increase
Solution Approach 1:
The patent implements a feedback mechanism where the external coordinator receives frequency channel state information from a server, processes this information, and provides updated channel assignment instructions to master devices. This feedback loop enables dynamic adjustment of frequency channels based on real-time channel conditions, reducing packet error rates while maintaining operational simplicity through automated coordination.
Data Source
AI summary
A method for controlling an electronic apparatus and a method therefor are disclosed. The electronic device may be configured as a master device configured to control a piconet in a wireless communication network including a plurality of piconets. The controlling method includes periodically receiving, from an external coordinator device, radio frequency channel state information, virtual address information, and clock information corresponding to the piconet allocated by the coordinator device, and performing wireless data communication based on the radio frequency channel state information, the virtual address information, and the clock information.