Data Sending Method Mapping Transport Blocks to Bandwidth Parts
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Solution Overview
Problem
In 5G NR systems, the limited bandwidth capability of terminal devices hampers data transmission efficiency due to the mismatch between system bandwidth and terminal device capabilities, necessitating innovative methods to utilize frequency resources effectively.
Innovation Solution
A data sending method that maps multiple data parts of transport blocks to discrete frequency resources, specifically bandwidth parts (BWP), across one or multiple carriers, leveraging frequency diversity to enhance transmission accuracy and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the system bandwidth is increased to accommodate more terminal devices and data traffic, then the data transmission capacity increases, but the terminal device bandwidth capability becomes a limiting factor, reducing data transmission efficiency
Solution Approach 1:
The patent segments the transport block into multiple data parts and maps them to different bandwidth parts (BWPs) within the system bandwidth. This allows the limited terminal device bandwidth capability to be effectively utilized by transmitting different segments of data through different BWPs, thereby resolving the contradiction between system bandwidth capacity and terminal device bandwidth limitation.
2Reliability
If multiple data parts of a transport block are mapped to different bandwidth parts, then frequency diversity is utilized to improve data transmission accuracy, but the mapping complexity increases
Solution Approach 1:
The transport block is segmented into multiple data parts that can be independently mapped to different BWPs. This segmentation enables frequency diversity gain by distributing data parts across different frequency resources, improving reliability while maintaining manageable mapping complexity through systematic segmentation rules.
Solution Approach 2:
The patent changes the mapping parameters by introducing BWP indices and data part indices to systematically map data parts to different BWPs. This parameter-based mapping approach provides flexibility in configuring the mapping relationship while controlling the complexity through standardized parameter management.
Data Source
AI summary
A data sending method, a data receiving method, an apparatus, and a system are provided. The method includes: determining M data parts corresponding to N TBs, where N is an integer greater than or equal to 1, and M is an integer greater than or equal to 2; mapping the M data parts to Q BWPs, where Q is an integer greater than or equal to 2, Q is less than or equal to M, one of the N TBs corresponds to at least two data parts, and the at least two data parts are respectively mapped to different BWPs; and sending the M data parts in the Q BWPs.