MCS Set Signaling for Bandwidth Adaptation
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Solution Overview
Problem
Current wireless communication standards, such as IEEE 802.11ac, use a single set of modulation and coding schemes (MCSs) for all bandwidths, limiting the ability to optimize data transmission rates across different bandwidth channels, particularly in extending communication range and improving reliability.
Innovation Solution
The development of a system that generates frames with separate fields indicating different MCS sets for first and second bandwidths, allowing devices to communicate using optimized MCS sets for each bandwidth, enabling higher MCSs for wider channels and lower MCSs for longer range communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single MCS set is used for all bandwidths, then device complexity is reduced and ease of operation is improved, but data transmission rates cannot be optimized for different bandwidth channels
Solution Approach 1:
The patent segments the single MCS set into multiple bandwidth-specific MCS sets (first MCS set for first bandwidth, second MCS set for second bandwidth). Each MCS set is optimized for its corresponding bandwidth, allowing the system to achieve higher data transmission rates by selecting the appropriate MCS set based on the actual bandwidth being used, rather than being constrained by a single MCS set designed for a specific bandwidth.
Solution Approach 2:
The patent implements dynamic MCS set selection based on bandwidth conditions. The system can adaptively choose between the first MCS set and second MCS set depending on whether the communication is occurring over the first bandwidth or second bandwidth. This dynamic adaptation allows optimization of transmission rates for each bandwidth scenario while maintaining manageable complexity through structured field definitions.
2Productivity
If higher MCSs are used for wider bandwidths, then data transmission rates are improved, but communication reliability may deteriorate in poor channel conditions
Solution Approach 1:
The patent applies local quality by creating different MCS sets tailored to specific bandwidth conditions. The first MCS set is optimized for the first bandwidth while the second MCS set is optimized for the second bandwidth. This allows each bandwidth to have its own optimized MCS characteristics, enabling higher rates when bandwidth and channel conditions permit, while maintaining reliability through appropriate MCS selection for the actual operating conditions.
3Adaptability or versatility
If separate fields for different MCS sets are added to frames, then adaptability to different bandwidths is improved, but frame structure complexity increases
Solution Approach 1:
The patent achieves universality by designing frame structures that can carry multiple MCS set indications through defined fields. The same frame format can accommodate indications for both the first MCS set and second MCS set, allowing the system to be universally applicable across different bandwidth scenarios. This multi-functional frame structure enables bandwidth adaptability without requiring entirely separate frame formats for each bandwidth case.
Data Source
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AI summary
Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to using fields of a frame to indicate different modulation and coding scheme (MCS) sets for communications on a first bandwidth and on a second bandwidth.