Sidelink Transmission Validation via Actual Channel Coding Rate
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Solution Overview
Problem
In sidelink communication systems, there is a lack of effective methods to determine the validity of transmission opportunities and actual channel coding rates, leading to unreliable communication and wastage of radio spectrum resources.
Innovation Solution
A method is introduced to determine target start symbols within a resource pool, calculate the actual channel coding rate of a transport block starting from the second start symbol, and adjust transmission based on this rate and a predefined threshold to optimize channel access and reduce resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a UE attempts channel access at multiple start symbols to increase transmission opportunities, then channel access probability is improved, but communication reliability deteriorates due to inability to determine actual channel coding rate
Solution Approach 1:
The patent calculates the actual channel coding rate in advance before channel access attempt at the second start symbol. By determining the coding rate beforehand based on the transport block size and available resources, the system can predict whether transmission will be reliable, thus resolving the contradiction between increasing access opportunities and maintaining reliability
Solution Approach 2:
The patent introduces a feedback mechanism where the calculated actual channel coding rate is compared against a threshold to determine whether to proceed with transmission at the second start symbol. This feedback loop ensures that only transmissions meeting reliability criteria are executed, maintaining communication reliability while allowing multiple access attempts
2Productivity
If transmission is attempted at the second start symbol without validating coding rate, then transmission opportunities are increased, but resource wastage increases due to invalid transmission attempts
Solution Approach 1:
The patent performs preliminary validation by calculating the actual channel coding rate before attempting transmission at the second start symbol. This advance calculation prevents wasteful transmission attempts by identifying invalid opportunities beforehand, thus reducing radio spectrum resource wastage while preserving legitimate transmission opportunities
Solution Approach 2:
The system serves itself by autonomously determining the validity of transmission opportunities through internal calculation of the actual channel coding rate. This self-validation mechanism eliminates the need for external coordination and automatically filters out wasteful transmission attempts, optimizing resource utilization
Data Source
Figure 1~3
AI summary
Provided are a transmission method, a communication node, and a storage medium. The method includes: determining target start symbols in a slot within a resource pool, where the target start symbols include a first start symbol and a second start symbol; calculating an actual channel coding rate of a transport block, TB, in a case where the TB is transmitted starting from the second start symbol; and determining transmission at the second start symbol according to the actual channel coding rate and a threshold.