UCI Priority Rules for Overlapping PUCCH and Configured Grant Resources
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Solution Overview
Problem
In wireless communication systems, particularly in 5G NR networks, there is a challenge in efficiently handling overlapping PUCCH and configured grant resources when transmitting uplink control information (UCI), as existing methods often result in resource conflicts and inefficiencies due to the lack of clear priority rules for UCI transmission.
Innovation Solution
A set of priority rules is applied by the UE to determine whether to transmit UCI in PUCCH or in the configured grant resource, allowing for efficient multiplexing and resource allocation based on predefined criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If PUCCH and configured grant resources overlap in time, then resource utilization increases, but transmission reliability decreases due to conflicts
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting transmission parameters based on priority levels. When PUCCH and configured grant resources overlap, the UE determines priority levels of different UCI types (e.g., HARQ-ACK, CSI, SR) and changes transmission parameters such as multiplexing decisions, power allocation, and resource selection based on these priority levels, thereby resolving the contradiction between resource utilization and transmission reliability
Solution Approach 2:
The patent employs composite materials analogy through composite transmission strategies. When resources overlap, the system combines multiple transmission approaches (piggybacking UCI on PUSCH, dropping lower priority transmissions, or transmitting on PUCCH) based on priority rules, creating a composite solution that maintains both resource efficiency and transmission reliability
2Productivity
If UCI is multiplexed on PUSCH, then resource efficiency improves, but control information reliability may deteriorate
Solution Approach 1:
The patent applies local quality by differentiating treatment of different UCI types based on their priority levels. High-priority UCI (e.g., HARQ-ACK) is protected with higher reliability measures, while lower-priority UCI (e.g., periodic CSI) can be multiplexed on PUSCH. This localized quality adjustment ensures that critical control information maintains reliability while still achieving overall resource efficiency
Data Source
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AI summary
Wireless communications systems and methods related to communications in a network that supports transmission of uplink control information (UCI) data are provided. A user equipment (UE) may determine that a physical uplink control channel (PUCCH) transmission in a time period overlaps with a configured grant resource. The PUCCH transmission may include first UCI including a first number of parts. The UE may determine whether to transmit only the first UCI in a PUCCH resource or to remove at least one part included in the first number of parts and transmit the remaining parts of the first UCI multiplexed with the CG-PUSCH and associated CG-UCI in the configured grant resource. The UE may transmit an uplink (UL) communication signal in accordance with the determination of whether to transmit the first UCI in the PUCCH resource or to remove at least one part included in the first number of parts.