Bluetooth Slave Device Active Time Slot Window for Radio Resource Overhead

The patent inverts the traditional polling mechanism by allowing slave devices to actively send data packets during what would traditionally be reception time slots. Instead of the master device initiating all communications through polling, slave devices can proactively transmit data in active time slots, thereby reducing the need for continuous polling and associated radio resource consumption while maintaining reliable detection of user movements.

The patent introduces dynamic time slot transformation where reception time slots can be converted into active transmission time slots based on communication needs. This dynamic approach allows the system to maintain the underlying simple time division duplexing structure while enabling flexible resource allocation that improves radio resource usage efficiency, as slave devices can actively transmit data when needed rather than being restricted to passive reception.

The patent segments the communication roles by allowing slave devices to assume transmission responsibilities during specific active time slots. This segmentation of transmission and reception functions across multiple devices enables more efficient communication for multiple HID devices, as data can be transmitted in parallel during different time slots rather than requiring sequential polling, while the master device maintains protocol compliance by operating in even time slots.