Envelope Ratio Beam Hierarchy for 5G Refinement
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in efficiently refining beams for communication, leading to prolonged time in finding the most suitable narrow beams for higher array gain, which affects communication efficiency and speed.
Innovation Solution
The implementation of a beam hierarchy with children lists and parents lists based on envelope ratios, where each beam is associated with a subset of beams that intersect its envelope area, allowing for level-by-level refinement and reducing the number of beams to be measured, thereby accelerating the process of finding the most suitable beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional beam refinement methods are used to find the most suitable narrow beams, then beam selection accuracy is improved, but the time required to complete beam refinement is prolonged
Solution Approach 1:
The patent segments the beam refinement process into multiple hierarchical levels (first beam level and second beam level). At each level, a subset of candidate beams is identified and evaluated separately. This segmentation allows the system to efficiently narrow down candidates at each stage rather than evaluating all beams simultaneously, thus reducing total refinement time while maintaining selection accuracy.
Solution Approach 2:
The patent performs preliminary actions by pre-identifying and organizing beam subsets at different hierarchical levels before the actual beam refinement process. The first subset of candidate beams is prepared at the first beam level, and the second subset is prepared at the second beam level. This preliminary organization enables faster execution during actual beam selection by eliminating the need to evaluate all beams from scratch.
2Reliability
If all beams are measured to ensure the best beam is selected, then beam selection reliability is improved, but the complexity of the measurement process increases
Solution Approach 1:
The patent divides the complete beam set into hierarchical segments (first beam level and second beam level) with corresponding subsets. This segmentation reduces measurement complexity by limiting the number of beams evaluated at each level while ensuring that the most suitable beam is still identified through systematic progression through the hierarchy.
Solution Approach 2:
The patent introduces a hierarchical dimension to the beam measurement process, organizing beams into multiple levels and subsets. This dimensional organization transforms the complex task of evaluating all beams into a structured multi-stage process, where each level refines the candidate set, thereby reducing overall complexity while maintaining reliability.
Data Source
AI summary
A first wireless device may select a first beam for communication with a second wireless device from a first set of beams associated with a first beam level. A second set of beams may be associated with a second beam level. The first beam may be associated with a first children list. The first children list may be associated with a first subset of beams of the second set of beams. Each beam in the first subset of beams may have an envelope area that intersects an envelope area of the first beam. The first wireless device may select a second beam for communication with the second wireless device from the first subset of beams based on an envelope area of the second beam intersecting the envelope area of the first beam. The first wireless device may communicate with the second wireless device.