PUCCH Resource Configuration for NR Uplink Control
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Solution Overview
Problem
In wireless communication systems, particularly in New Radio (NR) technology, there is a need to define when and for which operations the default physical uplink control channel (PUCCH) resource is used, as existing configurations do not clearly specify the conditions for its utilization, leading to inefficiencies in resource allocation and management.
Innovation Solution
The proposed solution involves configuring both a default PUCCH resource and a UE-dedicated PUCCH resource, with specific definitions for their usage, allowing the system to determine the appropriate resource set based on the number of UCI bits to be transmitted, and using frequency hopping and spatial domain transmission filters for PUCCH transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a default PUCCH resource is configured for all UEs, then resource allocation simplicity is improved, but resource allocation efficiency deteriorates due to lack of optimization for specific UE conditions
Solution Approach 1:
The patent segments PUCCH resources into two distinct types: default PUCCH resources configured for all UEs and UE-dedicated PUCCH resources configured specifically for individual UEs. This segmentation allows the system to combine the simplicity of default resources with the efficiency of dedicated resources, resolving the contradiction between ease of allocation and allocation efficiency.
Solution Approach 2:
The patent implements a dynamic resource selection mechanism where the UE determines which PUCCH resource to use based on the number of UCI bits to be transmitted. When UCI bits exceed a threshold, the UE switches from using default PUCCH resources to UE-dedicated PUCCH resources. This dynamic adaptation optimizes resource allocation efficiency while maintaining operational simplicity.
2Productivity
If UE-dedicated PUCCH resources are configured for all operations, then resource allocation efficiency is improved, but system complexity increases due to additional configuration management
Solution Approach 1:
The patent segments PUCCH resources into two distinct types: default PUCCH resources configured for all UEs and UE-dedicated PUCCH resources configured specifically for individual UEs. This segmentation allows the system to maintain simple default configurations while adding dedicated resources only where needed, reducing overall system complexity.
Solution Approach 2:
The default PUCCH resources serve as a universal configuration applicable to all UEs and all operations, providing a baseline solution that reduces configuration management complexity. UE-dedicated resources are then added selectively for specific operations requiring optimized resource allocation, maintaining efficiency without universally increasing complexity.
3Ease of operation
If PUCCH resource configuration is simplified, then ease of operation is improved, but resource allocation efficiency deteriorates due to insufficient optimization
Solution Approach 1:
The patent implements a dynamic resource selection mechanism where the UE autonomously determines which PUCCH resource to use based on the number of UCI bits to be transmitted. When UCI bits exceed a threshold, the UE switches from using default PUCCH resources to UE-dedicated PUCCH resources. This dynamic adaptation maintains ease of operation through automated selection while improving resource allocation efficiency through optimized resource usage.
Solution Approach 2:
The UE performs self-service by autonomously selecting between default and UE-dedicated PUCCH resources based on its own transmission requirements (number of UCI bits). This eliminates the need for complex network-controlled resource selection, maintaining ease of operation while achieving efficient resource allocation through UE-autonomous optimization.
Data Source
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AI summary
Provided herein is a method and apparatus for configuring a physical uplink control channel (PUCCH) resource in a wireless communication system and, most particularly, in a new radio access (NR) technology. More specifically, when and/or for which operation the default PUCCH resource is being used may be defined. For example, a wireless device may receive information on a default physical uplink control channel (PUCCH) resource, and the wireless device may transmit uplink control information (UCI) to a gNB by using the default PUCCH resource, only before establishing a radio resource control (RRC) connection with the gNB.