Uplink PUSCH Overlap Scheduling Using CORESET Pool Rules
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in improving scheduling flexibility and transmission efficiency when multiple PUSCHs overlap in the time domain, particularly in scenarios involving single-TRP, multi-TRP, single-panel, and multi-panel transmissions, leading to conflicts and increased hardware complexity.
Innovation Solution
A method and apparatus that allow for flexible scheduling by defining the relationship between PDCCH and PUSCH based on coresetPoolIndex values, enabling overlapping PUSCHs within specific time constraints, thereby reducing conflicts and optimizing system design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple PUSCHs are allowed to overlap in time domain to improve transmission efficiency, then uplink transmission performance is improved, but scheduling flexibility and conflict management become more complex
Solution Approach 1:
The patent changes the parameter of time gap threshold (N symbols) dynamically based on coresetPoolIndex values. When PDCCH and PUSCH are associated with different coresetPoolIndex values, the end of PDCCH can be less than N symbols earlier than PUSCH start, allowing more flexible overlapping. This parameter change enables the system to adaptively adjust scheduling constraints to achieve better transmission efficiency while managing complexity through standardized rules.
Solution Approach 2:
The patent segments the scheduling rules into different cases based on coresetPoolIndex associations. By dividing the scheduling scenarios into distinct segments (different coresetPoolIndex combinations), the system can apply specific rules to each segment, making the overall complex scheduling manageable through structured segmentation of decision logic.
2Loss of time
If multiple PUSCHs are allowed to overlap in time domain, then transmission latency is reduced, but conflicts between PDCCH and PUSCH timing become more frequent
Solution Approach 1:
The patent modifies the timing parameter N based on coresetPoolIndex associations to reduce latency while preventing conflicts. By allowing the PDCCH end to be less than N symbols earlier than PUSCH start when associated with different coresetPoolIndex values, the system reduces unnecessary timing gaps and latency, while the coresetPoolIndex-based rule provides a reliable conflict resolution mechanism.
3Productivity
If different scheduling rules are applied for different transmission scenarios (single-TRP, multi-TRP, single-panel, multi-panel), then transmission performance is optimized, but hardware complexity and costs increase
Solution Approach 1:
The patent implements a universal scheduling rule based on coresetPoolIndex values that applies across all transmission scenarios (single-TRP, multi-TRP, single-panel, multi-panel). This single unified mechanism handles diverse scenarios without requiring separate hardware or complex scenario-specific logic, achieving optimized performance for each scenario while keeping hardware complexity low through a universal solution.
Data Source
Figure 1~3
Figure 4~6
Figure 7~9
AI summary
Disclosed in the present application are a method and apparatus used in a node for wireless communication. A first receiver receives a first PDCCH, and the first PDCCH ends at a first symbol. A first transmitter sends a first PUSCH and a second PUSCH, the first PDCCH schedules the first PUSCH, and the second PUSCH starts at a second symbol, wherein the first PUSCH and the second PUSCH overlap in a time domain. Whether the end of the first symbol can be less than N symbols earlier than the start of the second symbol is related to whether the first PDCCH and the second PUSCH are associated to different coresetPoolIndex values, wherein N depends on a UE processing capability.