Channel Power Adjustment via Positional Priorities in Self-Organizing Subnets
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In dense wireless networks, especially in Wi-Fi 802.11b/g and 5 GHz Wireless Technology, co-channel interference increases due to the lack of consideration for positional information and priorities in channel power adjustments, leading to unreliable communication quality in self-organizing subnets.
Innovation Solution
A method and system that set positional priorities for self-organizing subnets based on their location and adjust channel power dynamically to ensure high communication quality, using a master node to manage power adjustments and channel assignments, ensuring that devices in high-priority areas operate at maximum power while minimizing interference from other subnets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple self-organizing subnets share the same channel in dense wireless networks, then channel utilization is improved, but co-channel interference increases and communication quality deteriorates
Solution Approach 1:
The patent applies local quality by assigning different transmission power levels to different subnets based on their positional priorities. High-priority subnets (e.g., in critical areas) operate at maximum power while low-priority subnets operate at reduced power, creating localized power adjustments that reduce co-channel interference in specific areas while maintaining channel utilization across the network
Solution Approach 2:
The patent changes the transmission power parameter dynamically based on positional information and priority levels. The master node adjusts the power parameter for each subnet according to its position and importance, transforming a static power level system into a dynamic one that adapts to spatial distribution and service requirements
2Reliability
If transmission power is increased to guarantee communication quality, then communication reliability is improved, but interference to other subnets increases
Solution Approach 1:
Different subnets receive different power allocations based on their local requirements. Critical subnets get high power for reliability, while non-critical subnets get reduced power to minimize their interference contribution, creating a differentiated local quality approach across the network
Solution Approach 2:
The patent converts the potentially harmful effect of one subnet's transmission into a beneficial outcome by using priority-based power control. The interference that would normally degrade overall network quality is transformed into a managed condition where high-priority subnets can tolerate higher interference levels in exchange for maintaining their own high communication quality
3Device complexity
If positional information is not utilized in power adjustment, then system complexity is reduced, but communication quality cannot be guaranteed
Solution Approach 1:
The master node acts as an intermediary that collects positional information from all subnets, processes this information centrally, and distributes appropriate power level commands. This intermediary approach allows the system to utilize complex positional data without requiring each individual subnet to implement complex decision-making logic
Solution Approach 2:
The patent segments the power control function by separating the control node (master node) from the controlled nodes (subnets). The master node handles the complex task of positional analysis and power level determination, while individual subnets simply execute the assigned power levels, dividing the overall system complexity into manageable segments
Data Source
AI summary
Disclosed is a channel power adjustment method and system based on positional information of plural self-organizing subnets in a restricted area. The method includes a first setting step of setting, based on the positional information of the plural self-organizing subnets, a positional priority for each of the plural self-organizing subnets; and a first adjustment step of adjusting, at least partially based on the positional priorities of the plural self-organizing subnets, a power of a first device in a first self-organizing subnet working in a first channel, satisfying a predetermined rule to a first power of the first channel.