Multi-Antenna Wireless Access Point for Interference Reduction
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Solution Overview
Problem
Conventional wireless home LAN systems face issues with inter-cell interference, performance anomalies, coverage holes, and security due to large cell areas and inefficient resource management, leading to reduced output, increased transmission delays, and potential unauthorized access.
Innovation Solution
A wireless communication system with a single Access Point (AP) and a single MAC device that uses multiple antennas arranged in a specific area, with a control module dynamically assigning channels and managing traffic to minimize interference and optimize resource use, forming overlapping cells to cover a smaller area and enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single AP covers a large cell area, then the coverage area is increased, but inter-cell interference and security risks increase
Solution Approach 1:
The patent divides a single large cell into multiple smaller cells by deploying multiple antennas (e.g., 4 antennas creating 4 sectors) within one AP. Each antenna covers a specific sector, reducing the coverage area per antenna while maintaining overall coverage through coordinated operation. This segmentation eliminates inter-cell interference by isolating communication channels in different spatial directions and enhances security by limiting signal propagation to authorized areas only.
2Area of stationary object
If multiple APs are deployed to cover different areas, then coverage is improved, but system complexity and cost increase
Solution Approach 1:
The patent combines multiple antenna functions and multiple cell management capabilities into a single AP device. The MAC device within one AP controls multiple antennas, each serving a different sector, effectively merging what would traditionally require separate APs into one integrated system. This reduces system complexity, lowers deployment costs, and simplifies management while achieving the same coverage and interference mitigation goals.
3Device complexity
If a single MAC device manages multiple antennas, then device complexity is reduced, but control and resource management become more difficult
Solution Approach 1:
The patent implements dynamic resource allocation and beamforming techniques where the single MAC device adaptively adjusts transmission parameters for each antenna based on real-time channel conditions, terminal locations, and traffic demands. The system dynamically selects which antennas to activate, adjusts transmission power and direction, and allocates resources optimally across sectors, making the simplified single-MAC architecture as effective as multiple MAC devices would be.
Data Source
AI summary
Disclosed herein is wireless home LAN system using multiple antennas, and a wireless access point (AP) apparatus in a communication system for providing a plurality of terminals contained in a closed specific area with a wireless access service that includes a plurality of wireless modules arranged in the closed specific area at intervals of a predetermined distance, that are selectively activated, and a control module connected to the wireless modules by wire, for controlling communication performed in the area of the terminals and connection to an external network using the activated wireless modules. The apparatus selectively activates antennas in only a specific area requesting a communication service using a single controller and a plurality of antennas connected to the controller, such that it can solve performance anomalies and inter-cell frequency interference problems. Also, the apparatus controls propagation beams to concentrate on a minimum area, resulting in improved security.