Uplink Control Information Multiplexing for 5G Resource Conflicts
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Solution Overview
Problem
In the 5G NR system, there is no definitive method for transmitting uplink control information when transmission resources for different types of uplink control information overlap in the time domain, leading to operational inefficiencies.
Innovation Solution
A method is introduced where the first uplink control information is transmitted simultaneously with at least one second uplink control information on the first transmission resource when overlap occurs, with the second uplink control information being prioritized based on factors such as priority, processing latency, or sequence, ensuring simultaneous transmission without resource conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transmission resources for different uplink control information are configured independently, then each type of uplink control information can be transmitted according to its own requirements, but resource conflicts occur in the time domain when multiple transmissions overlap
Solution Approach 1:
When transmission resources for different uplink control information types (e.g., HARQ-ACK, CSI, SR) overlap in the time domain, the patent merges these transmissions by multiplexing them on a single PUCCH resource. The terminal determines a target PUCCH resource from the overlapping resources and transmits multiple UCI types together, thereby resolving resource conflicts while maintaining independent configuration flexibility for each UCI type.
2Productivity
If multiple uplink control information transmissions occur simultaneously in the time domain, then resource utilization increases, but the terminal cannot transmit only one PUCCH on one uplink occasion leading to transmission uncertainty
Solution Approach 1:
The patent introduces dynamic resource selection mechanisms where the terminal determines a target PUCCH resource from multiple overlapping resources based on specific rules (e.g., priority of UCI types, resource indices, or configuration parameters). This dynamic selection process enables simultaneous transmission of multiple UCI types with clear operational guidance, resolving the uncertainty while maximizing resource utilization.
3Quantity of substance
If transmission resources for different uplink control information overlap, then more information can be transmitted in parallel, but no definite solution exists for handling the overlap leading to system inefficiency
Solution Approach 1:
The patent establishes preliminary rules and procedures for resolving resource overlaps before transmissions occur. These include pre-defined priority relationships between different UCI types, pre-configured resource selection criteria, and predetermined multiplexing methods. By having these resolution mechanisms prepared in advance, the system can efficiently handle overlapping transmissions without ad-hoc complexity, enabling parallel transmission of multiple information types with manageable conflict resolution.
Data Source
AI summary
Provided are an uplink control information transmitting method and receiving method, a terminal, a base station and an apparatus. The transmitting method includes: determining a first transmission resource for first uplink control information and second transmission resources for second uplink control information; and when the first transmission resource overlaps with at least two of the second transmission resources in the time domain, transmitting the first uplink control information and at least one of the second uplink control information simultaneously on the first transmission resource; wherein the at least one of the second uplink control information is the uplink control information carried on the at least two second transmission resources that overlap with the first transmission resource in the time domain.