Wireless Mesh Node Channel Selection for High-Priority Message Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wireless mesh networks experience reduced throughput due to nodes periodically tuning into reserved channels for rare high-priority messages, causing unnecessary channel reservation and preventing reception of other messages.
Innovation Solution
A method where nodes select a channel based on the time interval when the greatest number of adjacent nodes can receive transmissions, allowing high-priority messages to be transmitted during optimal timeslots without requiring constant tuning to a reserved frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nodes periodically tune in to a reserved channel for high-priority messages, then the reliability of message delivery is improved, but the throughput of the wireless mesh network deteriorates
Solution Approach 1:
The patent applies dynamics by making the channel selection adaptive rather than static. Nodes dynamically select channels based on real-time network conditions and message priority levels, transitioning from a fixed reserved channel approach to a flexible, condition-based channel allocation system that optimizes both reliability and throughput.
Solution Approach 2:
The patent changes the parameter of channel selection from a fixed reserved channel to a dynamic selection process that considers multiple factors including message priority, current channel usage, and node capabilities. This parameter change allows the system to maintain reliability for high-priority messages while improving overall throughput by avoiding unnecessary channel reservations.
2Speed
If a reserved channel is allocated for high-priority messages, then the speed of important message transmission is improved, but the overall network efficiency deteriorates
Solution Approach 1:
The patent segments the channel allocation strategy by separating high-priority and standard priority message handling. High-priority messages receive dedicated channel allocation when needed, while standard messages use shared channels, creating a segmented approach that maintains fast transmission for critical messages without sacrificing overall network efficiency.
Solution Approach 2:
The patent replaces continuous periodic tuning to a reserved channel with on-demand channel selection. Channels are allocated periodically or on-demand based on message priority and network conditions, eliminating the need for continuous reservation and allowing nodes to receive other messages during non-reserved periods, thereby improving overall network efficiency.
3Reliability
If nodes continuously monitor a reserved channel, then the reliability of receiving important messages is improved, but the time available for receiving other messages is reduced
Solution Approach 1:
The patent applies preliminary action by having nodes pre-identify available channels and their usage patterns before message transmission. This allows nodes to be prepared to receive high-priority messages on the selected channel without requiring continuous monitoring, as the channel selection is done in advance based on network conditions and message requirements.
Solution Approach 2:
The patent ensures continuity of useful action by allowing nodes to continuously receive messages on shared channels while high-priority messages are transmitted on selected channels. This eliminates the interruption caused by periodic tuning to reserved channels, maintaining continuous message reception capability and reducing time loss for other messages.
Data Source
AI summary
A node within a wireless mesh network is configured to forward a high-priority message to adjacent nodes in the wireless mesh network by either (i) transmitting the message during successive timeslots to the largest subset of nodes capable of receiving transmissions during each timeslot, or (ii) transmitting the message on each different channel during the timeslot when the largest subset of nodes are capable of receiving transmissions on each of those channels.