NR Modulation Coding Scheme Extension for 1024QAM Throughput
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Solution Overview
Problem
The maximum modulation order supported by the NR system in 5G mobile communication is limited to 8, restricting communication rates for terminals with good channel quality in network central areas.
Innovation Solution
Introduce a new modulation coding scheme set that includes modulation orders up to 10, specifically 1024QAM, to enhance communication efficiency by allowing higher spectral efficiency in areas with good channel quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the maximum modulation order is limited to 8 in the NR system, then the system maintains compatibility and simplicity, but the communication rate of terminals with good channel quality in network central areas is restricted
Solution Approach 1:
The patent extends the modulation order parameter from the traditional maximum of 8 to support up to 10, enabling 1024QAM modulation. This parameter change allows terminals with good channel quality to achieve higher communication rates while maintaining backward compatibility with existing systems that use modulation orders up to 8.
2Productivity
If higher modulation orders are introduced to improve spectral efficiency, then communication efficiency increases, but the system complexity and implementation difficulty increase
Solution Approach 1:
The patent applies higher modulation orders (up to 1024QAM) selectively only to terminals with good channel quality in network central areas, while terminals with poor channel quality continue to use traditional modulation schemes. This localized application of high-order modulation improves spectral efficiency where beneficial without unnecessarily increasing complexity system-wide.
Data Source
AI summary
This application provides communication methods and apparatuses. An example method includes: receiving first indication information, wherein the first indication information indicates a first modulation coding scheme; and determining, from a first modulation coding scheme set, a first modulation coding scheme indicated by the first indication information. The first modulation coding scheme set comprises modulation coding schemes whose modulation orders are respectively 2, 4, 6, 8 and 10. A quantity of modulation coding schemes whose modulation order is 10 is 4. Coding rates corresponding to 2 of the 4 modulation coding schemes whose modulation orders are 10 comprise 853/1024 and 948/1024.