Uplink Channel Multiplexing for Priority Collision Handling
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Solution Overview
Problem
Existing wireless communication systems face challenges in handling multiplexing behaviors for uplink transmissions with different priorities, particularly in scenarios involving simultaneous PUCCH/PUSCH transmissions, leading to inefficient handling of collisions and impacts on latency and reliability.
Innovation Solution
A method for multiplexing uplink transmission channels with low and high priorities, including determining a final transmission channel and performing multiplexing or simultaneous PUCCH/PUSCH transmissions based on specific conditions, with prioritization and power headroom reporting adjustments to support various scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If simultaneous PUCCH/PUSCH transmissions are supported for inter-band carrier aggregation, then the reliability of uplink transmission is improved, but the complexity of multiplexing management increases
Solution Approach 1:
The patent segments the handling of uplink transmissions by priority level. It divides PUCCH/PUSCH transmissions into high priority and low priority categories, applying different multiplexing rules to each segment. This allows the system to support simultaneous transmissions while managing complexity through structured priority-based segmentation of transmission channels.
Solution Approach 2:
The patent applies local quality by assigning different transmission priorities to different channels or channel groups. High priority channels receive preferential treatment in multiplexing decisions, while low priority channels are handled differently when conflicts occur. This localized differentiation of transmission quality resolves the contradiction by maintaining reliability for critical transmissions while simplifying management through clear priority-based rules.
2Productivity
If low priority UL channels are multiplexed first before handling high priority channels, then the utilization of transmission resources is improved, but the latency of high priority transmissions increases
Solution Approach 1:
The patent implements preliminary action by pre-establishing priority-based multiplexing rules before transmission conflicts occur. The system is configured in advance to identify high priority channels and protect them from being delayed by low priority channel multiplexing operations. This preliminary configuration ensures that when conflicts arise, high priority transmissions are immediately protected, preventing latency increases while still allowing efficient resource utilization through structured low priority channel handling.
3Adaptability or versatility
If detailed multiplexing rules for PUCCH/PUSCH transmissions are not concluded, then the adaptability of the system is improved, but the reliability of transmission is reduced
Solution Approach 1:
The patent applies parameter changes by introducing priority levels as a key parameter for managing PUCCH/PUSCH multiplexing. Instead of requiring detailed rules for every possible transmission scenario, the system changes the approach by using priority parameters to dynamically determine multiplexing behavior. This allows the system to adapt to different transmission scenarios while maintaining reliability through consistent priority-based decision-making rules.
Data Source
AI summary
A wireless communication method executable in a user equipment (UE) includes: performing multiplexing of at least two uplink (UL) transmission channels with a low priority; determining a final transmission channel with the low priority after the multiplexing of the at least two UL transmission channels with the low priority; in response to the final transmission channel with the low priority overlapping at least one UL transmission channel with a high priority, performing multiplexing of the final transmission channel with the low priority and the at least one UL transmission channel with the high priority, or performing PUCCH/PUSCH transmissions.