Wireless Network Channel Switching and Sub-Network Configuration
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Solution Overview
Problem
In wireless personal area networks (WPANs), especially when the number of devices increases or specific devices require large channel capacity, channel resource allocation becomes insufficient, leading to communication failures as other devices cannot transmit data due to lack of allocated resources or resources being insufficient for their data capacity.
Innovation Solution
A method that involves searching for available alternative channels, requesting and changing to those channels if available, and configuring a sub-network on the new channel, ensuring efficient use of channel resources and allowing devices to form new networks by utilizing different channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If channel resources are allocated to accommodate more devices or devices requiring large channel capacity, then the channel capacity for individual devices is improved, but the number of devices that can communicate simultaneously decreases due to insufficient channel resources for other devices
Solution Approach 1:
The patent divides the wireless network into multiple sub-networks, each operating on different channels. This segmentation allows the original network to be split into first and second sub-networks, where each sub-network can independently allocate channel resources. By segmenting the network, the system can provide large channel capacity to specific devices within their respective sub-networks while simultaneously allowing other devices to communicate in parallel on different channels, thus resolving the contradiction between individual channel capacity and the number of communicating devices.
2Device complexity
If a single wireless network uses a limited number of channels, then the network configuration is simple, but channel resources become insufficient when the number of devices increases
Solution Approach 1:
The patent implements dynamic channel allocation where the coordinator can dynamically assign different channels to different sub-networks based on device requirements and network conditions. The system transitions from a static single-channel network to a dynamic multi-channel architecture where sub-networks can be created, modified, and dissolved as needed. This dynamic approach allows the network to adapt to varying device densities and communication demands without requiring a completely complex pre-configured multi-channel system, thus resolving the contradiction between network configuration simplicity and channel resource sufficiency.
Data Source
AI summary
A method of changing channels of a first device in a wireless network, which includes a first coordinator and at least one device, comprises searching whether another channel other than a first channel which is currently used in the wireless network is available, changing the first channel to a second channel among at least one or more available channels as a result of the searching step, and transmitting data to a second device or receiving data from the second device through the second channel.