IRS Multi-Peak Beam Generation for Coverage Holes
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Solution Overview
Problem
The existing beam generation manner of intelligent reflecting surfaces (IRS) fails to effectively cover communication coverage holes between network devices and terminal devices, limiting its ability to enhance communication coverage.
Innovation Solution
A method and apparatus that extend the beam generation capability of IRS by configuring beam parameters, including peak angles and widths, to generate beams with multiple peaks or wider widths, utilizing antenna arrays and weight matrices to optimize beam formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If narrow beam generation manner is used by IRS, then beam directionality is improved, but coverage range deteriorates
Solution Approach 1:
The patent segments the beam into multiple peaks by configuring multiple peak parameters (peak angle, peak width) for different antenna subarrays. This allows the IRS to create a composite beam pattern that covers multiple directions simultaneously, resolving the contradiction between directionality and coverage range.
Solution Approach 2:
The patent enables dynamic beam adjustment by allowing flexible configuration of peak parameters including peak angle, peak width, and antenna subarray selection. This dynamic capability allows the system to adapt beam characteristics to match varying coverage requirements while maintaining operational precision.
2Volume of stationary object
If multiple peak parameters are configured for beam generation, then coverage rate is improved, but signaling overhead increases
Solution Approach 1:
The patent changes the parameter representation by introducing a compact configuration method where peak parameters (peak angle, peak width) are defined relative to reference values. This parameterization approach reduces signaling overhead while maintaining the ability to generate multiple peak beams for improved coverage.
Solution Approach 2:
The patent applies local quality by allowing different peak parameters to be configured for different antenna subarrays based on local coverage requirements. This enables targeted beam shaping where each subarray contributes optimally to specific coverage areas, reducing overall signaling overhead.
3Volume of stationary object
If beam width is increased to cover scattered coverage holes, then coverage range is improved, but beam precision deteriorates
Solution Approach 1:
The patent segments the broad coverage requirement into multiple focused peaks, each with precise directional control. By configuring multiple peak parameters instead of using a single wide beam, the system achieves both extensive coverage and precise beam control simultaneously.
Solution Approach 2:
The patent creates a composite beam pattern by combining multiple peak beams from different antenna subarrays. This composite approach allows the system to achieve wide coverage through the combination of multiple precise beams, rather than relying on a single imprecise wide beam.
Data Source
AI summary
This application provides a beam generation method and a communication apparatus. The method can be applied to the beam generation field. The method includes: A first network device sends first configuration information to a second network device. The first configuration information is used to configure a beam parameter of the second network device, the beam parameter includes at least one peak parameter, and each of the at least one peak parameter includes at least one of a peak angle and a peak width. The second network device generates, based on the first configuration information, a beam having the beam parameter feature.