Channel-Oriented Modulation Selection Across Quality-Varied REs
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Solution Overview
Problem
Existing wireless communication systems, particularly 5G NR, face challenges in optimizing modulation schemes based on varying quality of resource elements (REs) to enhance spectral efficiency and throughput.
Innovation Solution
A method and apparatus that enable modulation selection procedures by identifying and utilizing subsets of REs with different qualities for distinct modulation techniques, allowing for improved channel-oriented modulation selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single modulation scheme is used for all resource elements, then device complexity is reduced and ease of operation is improved, but spectral efficiency deteriorates because higher quality REs cannot utilize higher modulation rates
Solution Approach 1:
The patent segments the resource elements into different quality subsets (first subset with higher quality, second subset with lower quality) and applies different modulation schemes to each subset. This segmentation enables higher spectral efficiency by matching modulation rates to RE quality while keeping the system manageable through structured classification.
Solution Approach 2:
The patent applies local quality by assigning different modulation schemes to different subsets of resource elements based on their individual quality characteristics. Higher quality REs receive higher modulation rates while lower quality REs receive more robust modulation, optimizing overall spectral efficiency without requiring complex per-RE optimization.
2Productivity
If higher modulation rates are applied to all resource elements, then spectral efficiency improves, but reliability deteriorates because lower quality REs cannot reliably decode high-order modulation
Solution Approach 1:
The patent applies different modulation schemes to different quality subsets of resource elements. Higher quality REs in the first subset receive higher modulation rates for improved spectral efficiency, while lower quality REs in the second subset receive more robust modulation schemes to ensure reliable decoding, thus maintaining both productivity and reliability.
3Productivity
If modulation selection based on RE quality is implemented, then spectral efficiency improves, but the complexity of modulation scheme management increases
Solution Approach 1:
The patent simplifies modulation management by segmenting resource elements into a limited number of quality subsets (first subset and second subset) rather than optimizing each RE individually. This segmentation approach achieves improved spectral efficiency through quality-based modulation selection while keeping the management complexity manageable through structured classification.
Solution Approach 2:
The patent applies partial action by implementing modulation selection for only the most significant quality variations (dividing REs into two main quality subsets) rather than optimizing every single RE. This approach captures the majority of spectral efficiency benefits while avoiding the excessive complexity of fine-grained per-RE optimization.
Data Source
AI summary
Method and apparatus for channel oriented modulation selection for improved spectral efficiency. The apparatus receives an activation indication indicating an activation of a modulation selection procedure and a set of REs used for the modulation selection procedure. The activation indication indicating a first modulation for a first subset of REs within the set of REs and a second modulation for a second subset of REs within the set of REs, the first subset of REs having a higher quality than the second subset of REs. The apparatus receives downlink communication based on the modulation selection procedure.