HARQ Process ID Allocation Across PUSCHs to Prevent MAC PDU Failures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in scenarios involving multiple PUSCH occasions within a configured grant period, the reuse of the same HARQ process identifier by adjacent or nearby PUSCHs leads to transmission failures of MAC PDUs, resulting in inefficiencies.
Innovation Solution
A method for determining unique HARQ process identifiers for each PUSCH within a configured grant period, using a novel HARQ process calculation formula and parameters to avoid transmission failures and improve efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the same HARQ process identifier is reused by adjacent PUSCHs, then resource utilization is improved, but transmission reliability deteriorates due to MAC PDU transmission failures
Solution Approach 1:
The patent segments the HARQ process identifiers by introducing a first identifier for the first PUSCH and a second identifier for the second PUSCH, where the second identifier is determined based on the first identifier and a first offset value. This segmentation ensures that adjacent PUSCHs have different HARQ process identifiers, preventing transmission failures while maintaining efficient resource utilization through systematic identifier allocation.
2Device complexity
If multiple PUSCHs use the same HARQ process identifier, then device complexity is reduced, but transmission efficiency deteriorates due to MAC PDU transmission failures
Solution Approach 1:
The patent changes the parameter of HARQ process identifier assignment by introducing an offset-based determination method. The second HARQ process identifier is calculated based on the first HARQ process identifier and a first offset value, which can be configured through higher layer signaling. This parameter change enables distinct identifiers for multiple PUSCHs while maintaining manageable device complexity through systematic generation rather than complex tracking mechanisms.
Data Source
Figure 1~3
Figure 4~6
Figure 7~8
AI summary
A method and apparatus for processing HARQ processes, a device, a storage medium, and a product, relate to the technical field of wireless communication. The method includes: determining (301) at least one HARQ process of at least one PUSCH among multiple PUSCHs. This solution may avoid transmission failures of MAC PDUs in HARQ processes that need to be used/reserved due to adjacent or nearby PUSCHs using a same HARQ process, thereby improving transmission efficiency.