Isochronous Channel Topology Switching Without Disconnection
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Solution Overview
Problem
The existing methods for wireless group data transmission in WPANs require disconnecting and reconnecting isochronous group channels during topology switching, leading to inefficient switching processes and interruptions in data transmission.
Innovation Solution
A topology switching method where a central slave device sends isochronization information to a peripheral slave device to start data transmission with a master device using channel parameters, allowing the central slave device to stop its data transmission with the master device before the peripheral slave device begins, thereby avoiding disconnection and improving switching efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the conventional method of disconnecting and recreating isochronous group channels is used during topology switching, then the topology can be updated according to use conditions, but the data transmission will be interrupted and switching efficiency will be low
Solution Approach 1:
The patent applies preliminary action by having the peripheral slave device obtain channel parameters from the central slave device before the actual topology switching occurs. The peripheral slave device prepares to use the isochronous channel in advance, so when switching happens, the connection is already established and data transmission continues without interruption. This eliminates the need to disconnect and recreate channels, improving switching efficiency while maintaining adaptability.
2Adaptability or versatility
If the isochronous group channel topology is switched by disconnecting all channels first, then the topological structure can be updated, but the data transmission will be interrupted during the switching process
Solution Approach 1:
The patent implements continuity of useful action by enabling the peripheral slave device to obtain channel parameters from the central slave device and start using the isochronous channel before the central slave device disconnects its connection. This overlapping transition ensures that data transmission remains continuous throughout the topology switching process, eliminating interruptions while allowing topology updates to occur.
Data Source
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AI summary
The present application provides a topology switching method based on an isochronous channel, an apparatus, a system and a storage medium. The method is applied to a first central slave device. There are a plurality of first isochronous channels between the first central slave device and a master device, and there is a first communication channel between the first central slave device and a peripheral slave device. The method includes: sending, by the first central slave device, first isochronization information to the peripheral slave device through the first communication channel between the first central slave device and the peripheral slave device, where the first isochronization information includes a channel parameter of the first isochronous channel, so that the peripheral slave device starts data transmission with the master device according to the channel parameter of the first isochronous channel; stopping, by the first central slave device, data transmission with the master device through the first isochronous channel, before the peripheral slave device starts the data transmission with the master device according to the channel parameter of the first isochronous channel. The switching efficiency of an isochronous channel topology is improved.