Uplink UCI Multiplexing for Overlapping PUCCH and PUSCH

The patent merges the transmission of UCI from both high-priority and low-priority channels onto a single PUSCH by multiplexing. The UE multiplexes UCI from the high-priority PUCCH and UCI from the low-priority PUCCH together with uplink data on the PUSCH, allowing all control information to be transmitted simultaneously without cancellation, thus resolving the contradiction between ensuring high-priority transmission and preventing UCI loss.

The PUSCH is utilized to serve multiple functions: transmitting uplink data, multiplexing high-priority UCI, and multiplexing low-priority UCI simultaneously. This multi-functionality allows the system to handle both high-priority and low-priority control information through a single channel, eliminating the need to cancel low-priority transmission and preserving all UCI while maintaining high-priority reliability.

The patent segments the UCI into different priority groups (high-priority UCI and low-priority UCI) and applies different coding schemes to each segment. High-priority UCI is coded separately from low-priority UCI, allowing independent optimization of coding parameters for each priority level. This segmentation reduces the overall complexity by breaking down the complex multiplexing problem into manageable segments that can be processed independently.

The patent applies different coding qualities and resource allocation strategies to different segments of UCI based on their priority levels. High-priority UCI receives more robust coding and better resource allocation, while low-priority UCI uses simpler coding. This local quality approach optimizes the overall system by tailoring the complexity of processing to the specific requirements of each UCI segment, reducing unnecessary complexity while ensuring complete UCI transmission.