Uplink Shared Channel Configured Grant Priority Handling
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Solution Overview
Problem
Existing multi-uplink scheduling technologies face challenges in managing conflicts between configured grant (CG) and dynamic grant (DG) uplink transmissions in user equipment (UE), particularly in high-frequency communications where phase noise is significant, and in coordinating hybrid automatic repeat request (HARQ) processes.
Innovation Solution
The UE determines overlapping transport blocks (TBs) between CG and DG transmissions, adjusts priorities, and adjusts HARQ process numbers based on predefined or dynamically configured rules to resolve conflicts, ensuring timely and efficient transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE transmits both CG and DG uplink transmissions simultaneously, then resource utilization is improved, but transmission reliability deteriorates due to phase noise in high-frequency communications
Solution Approach 1:
The UE performs preliminary determination of overlapping transport blocks between CG and DG transmissions before actual transmission. By proactively identifying potential conflicts and adjusting priorities in advance, the system prevents phase noise degradation rather than correcting it afterward, thus maintaining both high resource utilization and transmission reliability.
2Adaptability or versatility
If the UE monitors multiple control channels for both CG and DG transmissions, then scheduling flexibility is improved, but control channel monitoring complexity increases
Solution Approach 1:
The patent extracts and separates the priority determination logic for CG and DG transmissions into distinct processing paths. By isolating the conflict resolution mechanism for overlapping transport blocks, the system maintains scheduling flexibility through multiple control channels while reducing overall monitoring complexity through structured separation of concerns.
3Reliability
If the UE uses separate HARQ processes for CG and DG transmissions, then transmission reliability is improved, but coordination difficulty increases when transmissions overlap in time
Solution Approach 1:
The patent introduces priority levels as an intermediary mechanism that mediates between CG and DG transmissions with separate HARQ processes. When transmissions overlap in time, the priority level acts as a decision criterion that automatically resolves conflicts without requiring complex coordination logic, thus maintaining reliability while reducing coordination difficulty.
Data Source
AI summary
Aspects are described for a user equipment (UE) comprising a transceiver configured to enable wireless communication with a base station and a processor communicatively coupled to the transceiver. The processor is configured to determine one or more configured grant (CG) transport blocks (TBs) of one or more CG uplink transmissions and determine one or more dynamic grant (DG) TBs of one or more DG uplink transmissions. The processor is further configured to determine that a first CG TB of the one or more CG TBs overlaps with a first DG TB of the one or more DG TBs in time and determine that a priority level of the first CG TB is lower than a priority level of the DG TB. The processor is further configured to determine that the priority level of the first CG TB is lower than the priority level of the first DG TB and transmit, in the first DG TB, a first DG uplink transmission corresponding to the first DG TB.