Uplink Control Channel Resource Block Allocation
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Solution Overview
Problem
In New Radio (NR) systems, the physical uplink control channel (PUCCH) typically uses only one resource block, limiting transmission power and affecting coverage, especially in high-frequency bands like 52.6 to 71 GHz.
Innovation Solution
A terminal is configured to use multiple resource blocks for the uplink control channel, allowing for increased transmission power by determining and using a number of resource blocks greater than one, which is transmitted using a second uplink control channel before a dedicated resource is configured.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If only one resource block is used for PUCCH transmission, then the device complexity is reduced, but the transmission power is limited and coverage is degraded
Solution Approach 1:
The patent segments the uplink control channel transmission across multiple resource blocks instead of using a single RB. This allows the transmission power to be distributed across multiple RBs, effectively increasing the total transmission power and improving coverage while maintaining manageable device complexity through systematic resource allocation
Solution Approach 2:
The patent transitions from a one-dimensional single RB allocation to a multi-dimensional resource block configuration by introducing multiple RBs in the frequency domain. This dimensional expansion enables higher transmission power through frequency diversity while preserving device complexity through structured resource management
2Reliability
If multiple resource blocks are used for PUCCH transmission, then transmission power and coverage are improved, but the device complexity increases
Solution Approach 1:
The patent divides the PUCCH transmission across multiple segmented resource blocks, where each RB carries a portion of the control information. This segmentation improves reliability through frequency diversity and error resilience while managing device complexity by organizing the segmented resources in a systematic manner
Solution Approach 2:
The patent changes the parameter of resource block count from one to multiple, fundamentally altering the transmission characteristics. This parameter change enhances coverage and reliability by exploiting frequency diversity, while device complexity is managed through optimized resource allocation algorithms and standardized procedures
Data Source
AI summary
A terminal includes a control unit configured to determine a number of resource blocks to be used in a second uplink control channel that is used before a terminal-dedicated resource for a first uplink control channel is configured as a value greater than one; and a transmission unit configured to perform transmission by the second uplink control channel using the number of resource blocks.