Dynamic Radio Channel Sizing for Uplink Interference Control
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Solution Overview
Problem
Wireless access nodes serving multi-radio user devices do not efficiently and effectively share channel bandwidth, and fail to optimize channel sizes based on dynamic network conditions, leading to interference issues.
Innovation Solution
Primary and secondary access nodes dynamically adjust their channel sizes based on uplink interference measurements, reallocating bandwidth between them to optimize channel sizes and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless access nodes use fixed channel sizes, then device complexity is reduced, but channel bandwidth sharing efficiency deteriorates
Solution Approach 1:
The patent implements dynamic channel sizing where access nodes continuously adjust their channel sizes based on real-time interference measurements and network conditions. The primary access node determines uplink interference on its primary channel and secondary channel, then dynamically selects optimal channel sizes for both channels, transforming the static channel allocation into an adaptive system that responds to changing network conditions.
Solution Approach 2:
The patent establishes a feedback mechanism where access nodes measure uplink interference on their channels, use this measurement to determine optimal channel sizes, implement the changes, and continue monitoring. This closed-loop feedback system enables continuous optimization of channel bandwidth sharing efficiency while maintaining manageable complexity through automated decision-making based on measured parameters.
2Object-affected harmful factors
If channel sizes are optimized dynamically, then interference is reduced, but measurement and control difficulty increases
Solution Approach 1:
The patent enables access nodes to autonomously measure their own uplink interference conditions and automatically determine optimal channel sizes without requiring complex centralized control. Each access node performs self-service by monitoring its primary and secondary channel interference levels and independently making channel size adjustments, thereby reducing interference while keeping measurement and control complexity manageable through distributed decision-making.
3Productivity
If adjacent access nodes use different channels, then interference is reduced, but channel bandwidth utilization efficiency deteriorates
Solution Approach 1:
The patent changes the parameter of channel size dynamically based on network conditions. By adjusting channel sizes rather than relying solely on fixed channel assignments, the system can optimize bandwidth utilization efficiency while managing interference between adjacent access nodes. The primary access node determines optimal channel sizes for both primary and secondary channels based on measured interference conditions.
Data Source
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AI summary
In a wireless communication network (100), a primary access node (121) wirelessly serves User Equipment (UEs) (101 - 103) over a primary radio channel (111). A secondary access node (122) wirelessly serves the UEs (101 - 103) over a secondary radio channel (112). The primary access node (121) determines uplink interference. The primary access node (121) processes the uplink interference to select a new primary radio channel size and a new secondary radio channel size. The primary access node (121) wirelessly serves the UEs (101 - 103) over the primary radio channel (111) having the new primary channel size. The secondary access node (122) wirelessly serves the UEs (101 - 103) over the secondary radio channel (112) having the new secondary channel size.