NR Data Transmission Bit Selection for Resource Efficiency
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Solution Overview
Problem
The existing data repetition transmission mechanism in NR systems faces inefficiencies in rate matching and resource allocation, leading to suboptimal resource utilization and reception performance, particularly in scenarios with large transport blocks and repeated transmissions.
Innovation Solution
The method involves bit selection and rate matching based on specific parameters to determine transmission bits for each code block, allowing continuous allocation of data bits across multiple time units, and incorporates interleaving to optimize data transmission performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data repetition transmission is performed using traditional rate matching, then transmission reliability is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The transport block is segmented into multiple code blocks, and each code block is independently processed with bit selection and rate matching. This segmentation allows flexible allocation of transmission resources for each code block across multiple time units, improving overall resource utilization while maintaining transmission reliability through repeated transmission of segmented data.
Solution Approach 2:
The patent introduces dynamic bit selection parameters and flexible rate matching configurations that adapt to different transmission conditions. The system can dynamically adjust the number of bits selected from each code block and the allocation across time units based on channel conditions and traffic requirements, optimizing resource utilization while ensuring reliable delivery.
2Reliability
If traditional rate matching is used for repeated transmissions, then transmission coverage is maintained, but reception and demodulation performance deteriorates
Solution Approach 1:
The patent applies different bit selection strategies and rate matching parameters to different code blocks and different time units. By optimizing the local transmission characteristics for each segment and time slot, the system improves reception and demodulation performance while maintaining overall channel coverage through coordinated repeated transmissions.
Solution Approach 2:
The system performs preliminary bit selection and determines optimal rate matching parameters before actual transmission based on predicted channel conditions and traffic characteristics. This preliminary optimization prepares the most suitable transmission configuration in advance, improving reception performance while ensuring coverage is maintained through pre-planned repetition strategies.
3Speed
If more bits are transmitted per time unit, then transmission speed is improved, but resource allocation flexibility deteriorates
Solution Approach 1:
The patent extends resource allocation from a single time unit dimension to multiple time units, allowing bits to be allocated across different time dimensions. This multi-dimensional allocation enables the system to achieve high transmission speed in some time units while maintaining flexibility to adjust allocation in other time units based on varying channel conditions and traffic requirements.
Data Source
AI summary
A data transmission method and apparatus, a device, and a storage medium. In the method, coded bits corresponding to each of at least one code block (CB) are acquired. Bit selection is performed on the coded bits corresponding to each of the at least one CB based on at least one bit selection parameter, to obtain transmission bits corresponding to each of the at least one CB. A first transport block (TB) is transmitted in n time units, wherein the first TB is obtained based on the transmission bits corresponding to each of the at least one CB, and n is a positive integer.