PUCCH Resource Validation by Uplink BWP Size and RB Count
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Solution Overview
Problem
In future-generation 5G systems, efficient allocation and transmission of physical uplink control channels (PUCCH) resources are challenged by varying bandwidth parts (BWPs) and resource block (RB) configurations across user equipment (UEs), leading to potential overlaps and wastage of resources.
Innovation Solution
A method and apparatus for determining the validity of an initial PUCCH resource set based on the size of the uplink bandwidth part (UL BWP) and the number of RBs, ensuring that PUCCH transmission occurs only within valid resource sets, thereby preventing resource overlaps and wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple initial PUCCH resource sets are configured for different UEs, then resource allocation flexibility is improved, but resource overlaps and wastage occur
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple initial PUCCH resource sets with different valid conditions before actual PUCCH transmission occurs. The network device configures resource sets with associated validity conditions (such as bandwidth thresholds or RB count thresholds) in advance, allowing the UE to determine which resource set to use based on current channel conditions without causing resource conflicts. This advance configuration prevents resource overlaps by ensuring each resource set is designated for specific scenarios.
Solution Approach 2:
The patent implements dynamics by making PUCCH resource set selection adaptive to changing channel conditions. The UE dynamically determines which initial PUCCH resource set is valid based on current parameters such as uplink bandwidth size, number of resource blocks, or other channel state information. This dynamic selection mechanism allows the system to adapt resource allocation to real-time conditions, improving flexibility while preventing resource wastage through condition-based validation.
2Speed
If PUCCH resources are allocated without validity verification, then transmission speed is improved, but resource allocation accuracy deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-configuring validity conditions for each initial PUCCH resource set before transmission. The network device establishes criteria (such as bandwidth thresholds, RB count thresholds, or other parameter thresholds) in advance, allowing the UE to quickly verify resource validity without complex real-time calculations. This preliminary setup enables fast validation that maintains transmission speed while ensuring allocation accuracy.
Solution Approach 2:
The patent implements self-service by enabling the UE to autonomously determine the validity of initial PUCCH resource sets based on pre-configured conditions and current channel parameters. The UE independently evaluates whether a resource set is valid by comparing current conditions against the pre-configured thresholds, without requiring continuous network intervention. This self-validation mechanism maintains transmission speed while improving resource allocation accuracy through systematic verification.
Data Source
AI summary
A method of transmitting a PUCCH by a UE in a wireless communication system is provided. The method includes receiving (i) first information related to an uplink (UL) bandwidth part (BWP), (ii) second information related to the number of resource blocks (RBs) for the PUCCH, and (iii) third information related to an index of one initial PUCCH resource set among a plurality of initial PUCCH resource sets, determining whether the one initial PUCCH resource set is valid based on at least of the size of the UL BWP and the number of the RBs, and transmitting the PUCCH through a PUCCH resource included in the one initial PUCCH resource set based on the one initial PUCCH resource set being valid.