Frequency Band Sub-band Allocation for WLAN Interference Reduction
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Solution Overview
Problem
Current communication systems lack a concrete method for allocating new frequency bands not used by legacy devices, hindering high-speed data transmission and reception in wireless local area networks (WLANs).
Innovation Solution
A resource allocation apparatus and method that identifies new frequency bands, divides them into sub-bands, sets priorities, and allocates these sub-bands for efficient data transmission and reception between terminals and access points, minimizing interference and optimizing frame configuration for new frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a new frequency band is allocated for high-speed data transmission, then data transmission rate is improved, but interference from legacy devices increases
Solution Approach 1:
The new frequency band is divided into multiple sub-bands, allowing the system to selectively allocate specific sub-bands for high-speed data transmission while avoiding sub-bands where legacy devices operate, thereby reducing interference while maintaining high transmission rates
Solution Approach 2:
Different sub-bands within the new frequency band are assigned different priorities based on local interference conditions, enabling the system to optimize transmission quality in specific frequency regions while maintaining overall high-speed communication
2Productivity
If the new frequency band is divided into multiple sub-bands, then resource allocation efficiency is improved, but system complexity increases
Solution Approach 1:
The frequency band is segmented into sub-bands with assigned priorities, enabling efficient resource allocation through a systematic approach that balances the benefits of detailed resource management with the need to maintain manageable system complexity
Solution Approach 2:
The system changes the parameter of frequency band allocation by introducing priority levels for different sub-bands, transforming a simple allocation problem into a multi-parameter optimization problem that improves efficiency while keeping complexity controlled through standardized priority assignments
Data Source
AI summary
A resource allocation apparatus in a communication system includes an identification unit configured to identify a new frequency band for transmission and reception of data between a plurality of terminals and a first access point, and identify a first frequency band which is being used by a second access point in the new frequency band; a setting unit configured to divide the new frequency band into sub bands of a basic frequency band, and set priorities of the sub bands; and an allocation unit configured to allocate the sub bands in correspondence to the priorities, for transmission and reception of data between the plurality of terminals and the first access point.