Multimodal Data Transmission Using Spaced Subcarriers for Reliability
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Solution Overview
Problem
Current data transmission methods in multi-modal services, such as those involving extended reality technologies, experience significant block interference in the frequency domain, leading to low data transmission reliability, especially when handling different types of data like video and haptic data.
Innovation Solution
Distribute data with different reliability requirements on subcarriers that are spaced at intervals within a transmission block, using varying modulation and coding schemes to reduce block interference and improve reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pieces of data of different types are all scheduled in current data transmission method, then data transmission capacity is improved, but block interference in frequency domain increases and data transmission reliability decreases
Solution Approach 1:
The patent segments the frequency domain resources by distributing different data types to different subcarriers within the same resource block. Video data and haptic data are separated and mapped to specific subcarrier positions, avoiding mutual interference while maintaining efficient resource utilization. This segmentation resolves the contradiction by enabling multi-data transmission without compromising reliability.
Solution Approach 2:
The patent applies local quality by assigning different modulation and coding schemes to different data types based on their specific requirements. Video data may use one MCS while haptic data uses another, optimizing each data type's transmission quality locally. This allows the system to maintain high reliability for each data type while achieving high overall transmission capacity.
2Productivity
If data are mapped to continuous subcarriers, then resource utilization is improved, but block interference in frequency domain increases
Solution Approach 1:
The patent implements segmentation by mapping different data types to non-contiguous subcarrier positions within the resource block. Instead of allocating continuous subcarriers to each data type, the system distributes them across specific subcarrier indices, reducing frequency domain interference while maintaining resource efficiency through interleaved mapping.
Solution Approach 2:
The patent transitions from continuous one-dimensional subcarrier allocation to a distributed pattern across the frequency dimension. By introducing a mapping pattern that distributes data across subcarrier indices rather than allocating contiguous blocks, the system reduces block interference while maintaining high resource utilization through efficient frequency domain packing.
Data Source
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AI summary
A multi-modal service data transmission method and apparatus are provided. The multi-modal service data transmission method includes: receiving first indication information; determining a first resource and a second resource based on the first indication information; receiving first data on the first resource; and receiving second data on the second resource. The first resource and the second resource are located in a same resource block RB. The first resource includes at least two subcarriers that are spaced in frequency domain, and/or the second resource includes at least two subcarriers that are spaced in frequency domain. According to the foregoing method, data transmission reliability can be improved.