Bluetooth Inquiry Paging Parallel Transmission
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Solution Overview
Problem
Current Bluetooth inquiry/paging processes are inefficient, requiring a long time to establish connections due to the sequential transmission of inquiry/paging messages across multiple channel trains, which increases the overall duration and affects user experience, especially in multitasking scenarios.
Innovation Solution
The method involves transmitting multiple inquiry/paging messages in a single transmission time slot across both A-train and B-train channels, with corresponding reception windows, allowing for simultaneous scanning and reducing the time required to complete the inquiry/paging process by transmitting four messages in each time slot instead of two, thereby decreasing the overall connection establishment time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the proportion of time occupied by inquiry/paging is increased to improve connection success rate and reduce average inquiry time, then the paging success rate improves and average inquiry time decreases, but the time allocated to other tasks (such as ACL link) is reduced
Solution Approach 1:
The inquiry/paging process is segmented into multiple parallel transmission opportunities within a single time slot. Instead of sequentially transmitting messages across multiple time slots, the patent divides the inquiry process into multiple messages (at least two) that can be transmitted simultaneously in parallel, reducing the total time required while maintaining comprehensive channel coverage.
Solution Approach 2:
Multiple inquiry/paging messages that would traditionally be transmitted in separate time slots are merged into a single time slot. The patent combines multiple transmission opportunities for different channel trains (A-train and B-train) into one consolidated time slot, allowing parallel processing and reducing the overall time allocation required for inquiry/paging operations.
2Reliability
If the proportion of time occupied by inquiry/paging is increased to meet user requirements for paging success rate, then the paging success rate improves, but the time for other tasks is reduced
Solution Approach 1:
The inquiry process is segmented into multiple parallel message transmissions within a single time slot, covering both A-train and B-train channel groups. This segmentation allows comprehensive channel coverage for reliable connection establishment without extending the total time duration, as all segments are executed in parallel rather than sequentially.
Solution Approach 2:
The patent enables continuous useful action by performing multiple inquiry transmissions simultaneously within one time slot rather than interrupting other tasks. The parallel transmission of multiple messages maintains continuous progress toward connection establishment while minimizing time occupation, allowing other Bluetooth tasks to proceed without interruption.
Data Source
AI summary
A method for Bluetooth inquiry/paging and a communication device therefor are provided. The method includes transmitting a plurality of inquiry/paging messages in a transmission time slot to inquire/page a peer device, wherein, the number of inquiry/paging messages is greater than two; and activating a plurality reception windows in a reception time slot to receive response messages from the peer device. The invention also provides a corresponding communication device. The invention reduces the time required for inquiry/paging to the peer device, thereby reducing the time it takes to establish a Bluetooth connection between the two devices.