Multiple Beam Antenna Base Station with Independent Receivers
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Solution Overview
Problem
Existing IEEE 802.16 wireless communications systems face a trade-off between high gain antenna performance and coverage angle, requiring multiple base stations to achieve both, which complicates network deployment and management.
Innovation Solution
A multiple beam antenna base station system that uses independent receivers to select the best communication path and beam for each subscriber station, maintaining high gain while covering a large angle of view, without requiring special capabilities from subscriber stations, and employs Dynamic Slot Steering to optimize data transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single high gain antenna is used in a base station, then performance in the direction of the antenna's beam is improved, but the base station's coverage angle is reduced
Solution Approach 1:
The patent divides the coverage area into multiple sectors, each served by a separate antenna with a specific beam direction. Each antenna covers a specific angular range, and the base station segments the overall coverage area into distinct zones, allowing each antenna to provide high gain in its designated direction while collectively covering a wide angle of view.
Solution Approach 2:
The patent transitions from a single-antenna approach to a multi-antenna array configuration, adding spatial dimensionality to the system. By arranging multiple antennas in specific geometries and controlling their beam directions, the system achieves both high gain in specific directions and wide overall coverage through three-dimensional spatial distribution of antenna elements.
2Reliability
If multiple base stations are deployed to cover a large angle of view with high gain, then performance and coverage are improved, but network complexity and deployment cost increase
Solution Approach 1:
The patent combines multiple antenna systems into a single base station unit, integrating multiple high-gain antenna elements with their respective beam forming capabilities into one coordinated system. This merging allows the base station to provide wide-angle coverage with high gain performance without requiring multiple separate base station deployments, thereby reducing network complexity while maintaining performance.
3Area of moving object
If multiple base stations are used to achieve wide coverage with high gain, then coverage and performance are improved, but the number of base stations required increases
Solution Approach 1:
The patent creates a multi-functional base station that can simultaneously provide wide-angle coverage and high-gain performance through its array of directional antennas. Each antenna in the array serves multiple purposes: providing high gain in its specific direction, contributing to overall wide coverage when combined with other antennas, and enabling beam forming capabilities. This universality allows a single base station to perform functions that would otherwise require multiple separate stations.
Data Source
AI summary
Systems, devices and method are provided in association with a multiple beam antenna base station. One system embodiment includes a multiple beam antenna base station configured to communicate data to a number of subscriber stations using a number of multiple antenna beams. The multiple beam antenna base station is implemented with an independent receiver for each of the number of multiple antenna beams. In various embodiments, each of the independent receivers of the multiple beam antenna base station is configured to determine signal quality of a preamble of an uplink transmission from a subscriber station via the number of multiple antenna beams.