Wireless Channel Map Sharing for Slave Device Load Reduction
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing channel maps across multiple slave devices, leading to increased processing loads and costs, especially when all slave devices require channel map control.
Innovation Solution
A wireless communication system where a master device performs wireless communication with multiple slave devices via sequentially selected communication channels, incorporating a communication channel determination unit, a channel map share unit, a slave device determination unit, and a timing change unit to dynamically manage channel maps and adjust timing based on the number of slave devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If channel map control is executed for all slave devices, then communication quality is improved, but processing load and system cost increase
Solution Approach 1:
The patent segments the slave devices into two groups: those requiring channel map control and those not requiring it. This segmentation is based on whether slave devices can share the channel map from the master device. By dividing the slave devices into these functional groups, the system reduces the processing load on the master device while maintaining communication quality for the segmented group that needs control.
Solution Approach 2:
Instead of executing channel map control for all slave devices (excessive action), the patent applies channel map control only to the necessary subset of slave devices (partial action). This partial execution of the control function reduces the overall processing load and system cost while still achieving the required communication quality for devices that need it.
2Reliability
If channel map control is executed for all slave devices, then communication reliability is improved, but system cost increases
Solution Approach 1:
The patent segments slave devices into those requiring channel map control and those that can share the master device's channel map. This segmentation allows the system to achieve reliable communication for the controlled group without incurring the full cost of implementing channel map control for all devices, thereby reducing system cost while maintaining reliability where needed.
Solution Approach 2:
The patent implements a universal channel map sharing mechanism where the master device's channel map can be shared with multiple slave devices. This multi-functional approach allows a single channel map management system to serve multiple devices, reducing the need for separate channel map control implementations for each slave device and thereby reducing system cost.
3Productivity
If the number of slave devices requiring channel map control is small, then processing load is reduced, but timing coordination becomes more critical
Solution Approach 1:
The patent applies preliminary action by having the master device generate and prepare the channel map in advance. This pre-prepared channel map is then shared with slave devices that require control, reducing the processing load during active communication. The timing is coordinated so that slave devices receive the channel map before they need to use it for communication.
Data Source
AI summary
A slave device is determined as a sharing target to which sharing of the channel map is executed according to a communication state of the wireless communication between the master device and each of a plurality of slave devices. When the number of slave devices determined as the sharing target to which the sharing of the channel map is executed is small, the timing for executing the sharing of the channel map is set to be advanced as a whole of the slave devices determined as the sharing target, compared with a case where the number of slave devices determined as the sharing target is large.