Multi-Slot PUSCH Overlap Handling for UCI Multiplexing
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Solution Overview
Problem
Existing wireless communication systems face challenges in handling collisions and multiplexing uplink control channel information (UCI) for transport block (TB) transmission on multi-slot physical uplink shared channels (PUSCH), particularly in scenarios involving overlapping transmissions and resource conflicts.
Innovation Solution
Implementing methods for collision handling and UCI multiplexing by configuring multi-slot TB transmissions with a single redundancy version and redundancy version cycling, along with simultaneous PUSCH repetition Type A or Type B, to manage overlapping channels and enhance robustness and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-slot PUSCH is configured to overlap with another PUSCH or PUCCH to enable flexible resource allocation, then resource utilization efficiency is improved, but collision handling complexity increases
Solution Approach 1:
The patent changes the parameter of PUSCH transmission by configuring it to overlap with other channels (PUCCH or another PUSCH) in time-frequency resources. This parameter change enables flexible resource allocation and improves resource utilization efficiency, while the patent simultaneously provides collision handling mechanisms to manage the increased complexity
Solution Approach 2:
The patent segments the uplink transmission by allowing PUSCH to overlap with PUCCH or another PUSCH, creating distinct transmission segments that can be independently handled. This segmentation enables flexible resource allocation while the collision handling rules provide structured methods to manage each segment's interactions
2Productivity
If PUSCH transmission is extended across multiple slots to increase data throughput, then productivity is improved, but the likelihood of channel collisions increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multi-slot PUSCH transmission parameters and collision handling rules before actual transmission occurs. The network node and WD establish overlap configurations and collision resolution mechanisms in advance, enabling multi-slot transmission to increase data throughput while maintaining reliability through pre-planned collision avoidance strategies
Solution Approach 2:
The patent introduces dynamics by allowing PUSCH to be configured with flexible time-frequency resources that can overlap with other channels. This dynamic configuration enables multi-slot transmission for increased throughput, while the collision handling mechanisms dynamically adjust based on the specific overlap scenarios that occur
3Device complexity
If uplink control information is multiplexed with data transmission on PUSCH to reduce signaling overhead, then device complexity is reduced, but measurement precision of control information may deteriorate
Solution Approach 1:
The patent merges uplink control information (UCI) with data transmission on PUSCH by allowing PUCCH to overlap with PUSCH in time-frequency resources. This merging reduces signaling overhead and device complexity by consolidating control and data channels. The patent simultaneously provides mechanisms to maintain control information accuracy through proper resource allocation and collision handling
Data Source
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AI summary
A method, network node and wireless device (WD) for collision handling, uplink control channel information (UCI) multiplexing and repetition for transport block (TB) transmission on a multi-slot physical uplink shared channel (PUSCH) are disclosed. According to one aspect, a method in a WD includes configuring a multi-slot physical uplink shared channel (PUSCH) by overlapping a multi-slot PUSCH with at least one of another PUSCH and/or a physical uplink control channel (PUCCH).