PUCCH Resource Multiplexing for Uplink Signal Priority Management
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Solution Overview
Problem
The increasing number of user equipments (UEs) and the corresponding increase in data and control information transmitted by base stations pose a challenge in efficiently utilizing finite radio resources for uplink and downlink communications.
Innovation Solution
A method for a user equipment (UE) in a wireless communication system, where the UE receives information about multiple PUCCH resource sets, and based on the overlapping of PUCCH resources in the time domain, the UE multiplexes uplink signals on a PUCCH resource within a PUCCH resource set having the highest priority.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of user equipments (UEs) increases, then the communication capacity and data processing requirements increase, but the finite radio resources become insufficient for efficient communication
Solution Approach 1:
The patent segments the PUCCH resources into multiple resource sets (first PUCCH resource set, second PUCCH resource set, etc.) with different priorities. This segmentation allows the system to manage limited radio resources more effectively by dividing them into hierarchical categories, enabling selective resource allocation based on service requirements and improving overall system productivity.
Solution Approach 2:
The patent introduces dynamic priority management where the base station determines priority information for different PUCCH resource sets based on current system conditions and service requirements. This dynamic adjustment allows the system to adapt resource allocation in real-time, optimizing the balance between communication capacity and available radio resources.
2Adaptability or versatility
If multiple PUCCH resources are configured for different uplink signals, then the system can support various services, but resource overlap and collision occur in the time domain
Solution Approach 1:
The patent assigns different priorities to different PUCCH resource sets based on the specific service requirements. Each resource set has localized quality characteristics (priority levels) that determine its behavior during resource overlap. This allows the system to maintain versatility for multiple services while managing complexity through standardized priority-based resolution rules.
Solution Approach 2:
The base station determines priority information for PUCCH resource sets based on feedback about service requirements and system conditions. This feedback mechanism enables the system to adaptively manage resource overlaps and collisions, resolving conflicts between different services without requiring complex manual configuration.
3Productivity
If the base station transmits more control information to manage resources efficiently, then resource utilization improves, but the overhead and processing burden increase
Solution Approach 1:
The patent changes the parameter of priority assignment to manage resource allocation efficiently. By using priority-based resource set configuration, the base station can improve resource utilization without proportionally increasing control information volume, as the priority structure provides implicit allocation rules that reduce the need for extensive signaling.
Data Source
AI summary
According to an aspect of the present disclosure, a method for transmitting an uplink signal by a user equipment in a wireless communication system comprises: receiving information on a plurality of PUCCH resource sets; and on the basis of a first PUCCH resource associated with a first uplink signal and a second PUCCH resource associated with a second uplink signal, which overlap on a time domain, multiplexing the first uplink signal and the second uplink signal to a PUCCH resource included in one PUCCH resource set among the plurality of PUCCH resource sets, wherein the plurality of PUCCH resource sets are configured to have priorities, and the one PUCCH resource set is a PUCCH resource set having the highest priority from among the plurality of PUCCH resource sets.