Uplink Control Information Multiplexing Across Overlapping PUCCH Resources
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Solution Overview
Problem
There is a need for an effective method and apparatus to transmit uplink control information in wireless communication systems, particularly in cellular networks, to address overlapping priorities and ensure reliable communication.
Innovation Solution
A user equipment (UE) determines and transmits uplink control information (UCI) by prioritizing and multiplexing UCIs with different priorities, using a processor to manage overlapping PUCCH resources and retransmitting dropped UCIs, while utilizing downlink control information for retransmission guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple PUCCH resources are allocated for UCI transmission, then the capacity to transmit control information increases, but resource overlap and transmission conflicts occur
Solution Approach 1:
The patent segments UCI into different priority levels (first priority and second priority), allowing the system to handle multiple UCIs by dividing them into distinct groups that can be managed separately according to their priority, thus resolving conflicts when PUCCH resources overlap
Solution Approach 2:
The patent performs preliminary prioritization of UCIs before transmission, determining which UCI should be transmitted first when resource conflicts occur. This preliminary classification enables the system to pre-establish transmission order and avoid conflicts during actual transmission
2Productivity
If UCIs with different priorities are transmitted simultaneously, then communication efficiency improves, but resource conflicts and transmission errors increase
Solution Approach 1:
The patent introduces dynamic priority-based resource allocation where the transmission behavior adapts based on UCI priority levels. When resource conflicts are detected, the system dynamically adjusts transmission decisions based on the priority classification, allowing efficient simultaneous transmission of different priority UCIs while maintaining reliability through priority-based conflict resolution
3Productivity
If PUCCH resources are multiplexed for multiple UCIs, then resource utilization improves, but complexity in managing overlapping resources increases
Solution Approach 1:
The patent segments the resource management process into distinct priority-based handling procedures. By dividing UCIs into priority groups, the system creates simplified management rules for each segment, reducing overall complexity while improving resource utilization through multiplexing of different priority UCIs
Data Source
AI summary
The present specification relates to a method, an apparatus, and a system for transmitting uplink control information in a wireless communication system. The present specification provides a terminal comprising: a processor configured to determine a UCI to be dropped from among a first UCI having a first priority and a second UCI having a second priority or to multiplex the first UCI and the second UCI, under the condition in which a first PUCCH, to which the first UCI is mapped, and a second PUCCH, to which the second UCI is mapped, overlap in at least one symbol with respect to time; and a communication module configured to transmit an undropped UCI from among the first UCI and the second UCI to a base station or transmit a third PUCCH, in which the first UCI and the second UCI are multiplexed to be mapped thereto, to the base station according to the control of the processor. Communication reliability can be increased by multiplexing and transmitting UCIs having different priorities or later retransmitting a dropped UCI.