Wireless Node Beamforming Controller Common Envelope
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Solution Overview
Problem
Existing wireless communication systems with fixed beamforming struggle to efficiently adapt beam coverage to varying sector shapes, leading to imbalanced gain distribution and potential interference due to uniform beams.
Innovation Solution
A wireless communication system node with a beamforming controller and network that generates controllable beams with a common envelope adaptable to desired coverage, using dual polarizations and forming beam pairs with orthogonal polarizations to cover sub-sectors of varying sizes, optimizing beam distribution according to a predefined reference curve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If uniform beams are used in fixed beamforming, then the system is simple to implement, but the gain distribution becomes imbalanced and interference increases
Solution Approach 1:
The patent applies local quality by making each beam have non-uniform characteristics tailored to its specific directional requirements. The beamforming controller adjusts the amplitude and phase of individual beams differently, so that each beam has optimized gain distribution for its coverage area, rather than all beams having identical uniform patterns. This resolves the contradiction by allowing complexity only where needed to achieve balanced gain distribution.
Solution Approach 2:
The patent changes the parameters of beamforming by dynamically adjusting the amplitude and phase shift values for each beam based on the desired coverage pattern. The beamforming controller modifies these parameters to create non-uniform beams that follow a reference curve, transforming the system from uniform to adaptive non-uniform beam patterns to achieve better gain balance and reduced interference.
2Stability of the object's composition
If fixed number of beams are used, then the system is stable and simple, but the coverage area cannot be adapted to different sector shapes
Solution Approach 1:
The patent introduces dynamics into the fixed beamforming system by allowing the beamforming controller to adaptively adjust beam parameters (amplitude, phase, width) based on the desired coverage requirements. While the number of beams remains fixed for stability, their characteristics become dynamic and可调 to match different sector shapes and coverage areas, resolving the contradiction between stability and adaptability.
Solution Approach 2:
The patent changes physical parameters of the beams (amplitude distribution, phase shift, beam width) to adapt the coverage pattern to different sector shapes. The beamforming controller modifies these parameters based on the reference curve that defines the desired coverage area, enabling the same fixed number of beams to serve different coverage requirements without changing the system's basic structure.
3Reliability
If non-uniform beams following reference curve are used, then gain distribution is balanced and interference is reduced, but the system complexity increases
Solution Approach 1:
The patent introduces a reference curve as an intermediary that mediates between the simple fixed beam structure and the complex non-uniform beam patterns. The beamforming controller uses this reference curve as a template to generate the desired coverage pattern, simplifying the control process by providing a clear target pattern to follow rather than requiring complex direct optimization of each beam parameter.
Data Source
AI summary
A wireless communication system node has at least two antenna ports, a beamforming controller, and a beamforming network. The beamforming network has at least two beam ports that are adapted to provide corresponding beams. The beamforming controller is arranged to control the beamforming network such that the beams have a common envelope in a desired plane, where the common envelope is adapted to provide coverage for a certain communication system sector.