WLAN Power and Channel Joint Configuration
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Solution Overview
Problem
Current WLAN technologies face challenges in optimizing power and channel configuration efficiently, leading to suboptimal network performance due to limited orthogonal channels, co-channel interference, and external interference, especially in dynamic load conditions, which affects throughput and user experience.
Innovation Solution
A method and apparatus for joint configuration of power and channel in WLANs, which involves selecting optimal transmitting power combinations for access points, determining corresponding operating channel combinations, calculating estimated loads, and key performance indicators (KPIs) to select an optimal power and channel configuration scheme that minimizes service disruption and maximizes resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If more resources (spectrum and power) are allocated to a cell requiring more services, then system throughput is improved, but interference to regions requiring more services increases
Solution Approach 1:
The patent applies local quality by configuring different power levels and channel assignments for different access points based on their specific service requirements and interference environments. Each AP's power and channel are optimized locally rather than using uniform configuration across the network, allowing high-throughput regions to receive more resources while low-traffic regions generate less interference.
Solution Approach 2:
The patent changes physical parameters (power levels and channel frequencies) of access points to optimize network performance. By adjusting transmitting power and selecting appropriate channels for each AP, the system dynamically balances throughput improvement with interference mitigation across different network regions.
2Quantity of substance
If the number of available orthogonal channels is limited, then channel allocation becomes constrained, but co-channel interference in adjacent regions increases
Solution Approach 1:
The patent segments the limited channel resources by assigning different channels to different access points in adjacent regions. Instead of all APs competing for the same orthogonal channels, the system divides channel usage across multiple APs, reducing co-channel interference while effectively utilizing the limited spectrum resources.
3Use of energy by stationary object
If power adjustment is performed based on single base station load, then local power optimization is achieved, but impacts on whole network performance become unpredictable
Solution Approach 1:
The patent implements a feedback mechanism where the controller receives load information from multiple access points and adjusts power configurations based on overall network conditions. This centralized coordination ensures that power adjustments in one region account for their impact on adjacent regions, making whole network performance predictable and optimized.
4Measurement precision
If manual configuration of power and channel is performed, then configuration accuracy can be achieved, but configuration efficiency and adaptability to dynamic loads decrease
Solution Approach 1:
The patent enables the WLAN system to automatically configure and optimize power and channel parameters through a controller that receives load information from access points and computes optimal configurations. This self-service mechanism eliminates manual configuration needs while maintaining high accuracy through algorithmic optimization adapted to dynamic load conditions.
Data Source
AI summary
A method for joint configuration of power and channel of a WLAN is provided, including: selecting transmitting power of each AP from transmitting power ranges of APs of a WLAN to form an AP transmitting power combination; determining a set of AP operating channel combinations corresponding to each AP transmitting power combination according to operating channels of the APs in the WLAN; calculating an estimated load of each AP corresponding to each AP operating channel combination corresponding to each AP transmitting power combination, and calculating KPIs of the WLAN corresponding to each AP operating channel combination according to the estimated load of each AP; and selecting, according to the calculated KPIs, an optimal channel configuration scheme of the WLAN corresponding to each AP transmitting power combination, and selecting an optimal power and channel configuration scheme of the WLAN, thereby improving throughput and resource utilization efficiency of the WLAN.