Base Station Point Cell Formation for Spatial Multiplexing
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Solution Overview
Problem
Existing wireless communication technologies, including power concentration techniques for spatial multiplexing, do not necessarily lead to high communication performance in terms of frequency utilization efficiency, capacity, speed, latency, reliability, density, and power consumption when applied to radio access networks.
Innovation Solution
A base station forms point cells using power concentration through cooperative control of multiple antennas and determines the point cell to which a terminal apparatus belongs, enabling efficient access and high communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power concentration technique is applied to radio access network, then spatial multiplexing capability is improved, but communication performance in terms of frequency utilization efficiency, capacity, speed, latency, reliability, density, and power consumption is not necessarily improved
Solution Approach 1:
The base station divides the coverage area into multiple point cells, each served by a specific antenna. This segmentation allows the system to handle multiple users simultaneously in different spatial locations, improving both spatial multiplexing capability and overall communication performance through distributed power concentration points.
Solution Approach 2:
The patent applies power concentration locally at specific points (point cells) rather than uniformly across the entire coverage area. Each point cell is optimized for local user service, enabling high-frequency utilization efficiency and capacity while maintaining adaptability for different user distributions and channel conditions.
2Area of stationary object
If conventional cell formation is used, then coverage area is maintained, but frequency utilization efficiency and communication capacity are limited
Solution Approach 1:
The patent transitions from conventional two-dimensional planar cell formation to three-dimensional point-based cell formation. By concentrating power at specific spatial points rather than forming broad planar cells, the system achieves better spatial multiplexing and frequency utilization efficiency while maintaining comprehensive coverage through multiple distributed point cells.
3Adaptability or versatility
If power is concentrated at specific points using phase difference, then spatial multiplexing is enabled, but system complexity increases
Solution Approach 1:
The base station determines which point cell each terminal belongs to based on their spatial positions and channel conditions. This self-service mechanism automatically optimizes the assignment of terminals to appropriate point cells, enabling spatial multiplexing without requiring complex manual configuration or centralized coordination, thus reducing system operational complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances communication quality, reduces disconnection rates, and improves multi-connection communication by concentrating power at specific points, achieving advanced spatial multiplexing and interference suppression.
Implementation Method 1
a technique of concentrating power at a specific point using a phase difference of a near field
Data Source
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AI summary
A base station includes: a formation unit configured to form a point cell by concentrating power at a specific point using cooperative control of a plurality of antennas; and a determination processing unit configured to execute processing for determining the point cell to which a terminal apparatus belongs.