Time-Domain Communication With Multiple MCS Portions
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently utilizing multiple modulation and coding schemes (MCS) for improved spectral efficiency and data transmission quality, particularly in environments with varying channel conditions.
Innovation Solution
Implementing a method and apparatus for time domain communications that allow for a symbol to be configured with different MCS portions, enabling flexible and adaptive transmission and reception of wireless signals by indicating or receiving the capability to use multiple MCSs within a single symbol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single modulation and coding scheme (MCS) is used for the entire symbol, then the system complexity is low and implementation is simple, but the spectral efficiency and adaptability to varying channel conditions are limited
Solution Approach 1:
The symbol is divided into multiple portions, each configured with different MCS parameters. This segmentation allows each portion to be optimized for specific channel conditions, improving adaptability while maintaining manageable complexity through structured division of the transmission resource.
Solution Approach 2:
Different portions of the symbol are assigned different MCS configurations based on local channel conditions. This enables tailored optimization where each segment uses the most appropriate modulation and coding scheme for its specific transmission requirements, rather than applying a uniform configuration across the entire symbol.
2Productivity
If multiple MCS configurations are applied within a single symbol, then spectral efficiency and data transmission quality are improved, but the complexity of configuration and management increases
Solution Approach 1:
The MCS configuration becomes dynamic within the symbol structure, allowing different portions to use different modulation and coding schemes. This dynamic allocation enables the system to adapt to varying channel conditions across different time-frequency resources, improving spectral efficiency while the configuration is managed through standardized signaling mechanisms.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a capability to receive or transmit a time domain communication having a first portion of a symbol configured with a first modulation and coding scheme (MCS) and a second portion of the symbol configured with a second MCS that is different from the first MCS. The UE may receive or transmit the time domain communication having the first portion configured with the first MCS and the second portion configured with the second MCS. Numerous other aspects are described.