Unequal MCS Indication Across Bandwidth and RU Conditions
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Solution Overview
Problem
Communication devices struggle to flexibly indicate unequal modulation and coding scheme (MCS) capabilities, particularly in wireless communication systems where different MCSs are used for resources allocated to users in dimensions such as spatial streams or tones.
Innovation Solution
A method and apparatus that enable a communication device to indicate unequal MCS capabilities by sending specific indication information based on conditions like bandwidth, resource unit size, or multiple resource unit size, allowing for flexible MCS configuration in data sending and receiving processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a communication device uses a fixed indication method for MCS capability, then the indication process is simple, but the device cannot flexibly indicate unequal MCS capability under different conditions
Solution Approach 1:
The indication information is segmented into multiple fields, where each field corresponds to a specific condition (bandwidth, RU size, MRU size). This allows the device to indicate unequal MCS capability separately for each condition, achieving flexible indication without requiring a completely new complex indication mechanism.
Solution Approach 2:
Different parts of the indication information are designed with different qualities - some fields indicate bandwidth conditions, others indicate RU size conditions, and others indicate MRU size conditions. Each field provides localized indication for specific scenarios, enabling precise and flexible MCS capability indication tailored to different operational conditions.
2Adaptability or versatility
If the indication information includes multiple fields for different conditions, then the flexibility of indication is improved, but the size of indication information increases
Solution Approach 1:
The indication information structure is designed to be universal and multi-functional. The same indication message can convey MCS capability under different conditions (bandwidth, RU size, MRU size) simultaneously, rather than requiring separate indication messages for each condition. This reduces the overall information quantity needed while maintaining flexibility.
Solution Approach 2:
Multiple indication functions are merged into a single indication information structure. By combining the indication of unequal MCS capability across different conditions (bandwidth, RU size, MRU size) into one unified message, the patent achieves flexible indication while minimizing the total information overhead compared to using separate indication messages for each condition.
3Productivity
If different MCSs are used for different spatial streams or tones, then communication efficiency is improved, but the complexity of MCS management increases
Solution Approach 1:
The patent applies local quality by allowing different MCS configurations for different spatial streams and tones based on their specific conditions. Each spatial stream or tone can be optimized with an appropriate MCS level, improving communication efficiency while the standardized indication framework keeps management complexity可控.
Solution Approach 2:
The MCS configuration is made dynamic and adaptable to different conditions. The indication information enables the system to dynamically select appropriate MCS levels for different spatial streams and tones based on channel conditions, bandwidth, RU size, and MRU size, thereby improving communication efficiency without requiring overly complex manual management.
Data Source
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AI summary
Embodiments of this application provide a modulation and coding scheme indication method and a communication apparatus, and relate to the field of wireless communication technologies. In embodiments of this application, an unequal modulation and coding scheme MCS capability of a communication device can be flexibly indicated. The method includes: A first device determines an unequal MCS configuration. The first device sends indication information to a second device. The indication information indicates the unequal MCS configuration supported by the first device under a specified condition, and the specified condition includes at least one of the following: a bandwidth corresponding to the unequal MCS configuration, a size of a resource unit RU corresponding to the unequal MCS configuration, or a size of a multiple resource unit MRU corresponding to the unequal MCS configuration.