PUCCH Transmission PAPR Reduction via Segmentation
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Solution Overview
Problem
Current wireless communication systems face challenges in reducing the peak-to-average power ratio (PAPR) of Physical Uplink Control Channel (PUCCH) transmission, which affects the efficiency and reliability of communication between terminals and base stations, especially in next-generation communication systems supporting various numerologies.
Innovation Solution
The proposed method involves configuring the PUCCH with specific resource allocation and phase rotation techniques to minimize PAPR, including interleaving sequences and applying phase rotations to subcarriers, allowing for efficient transmission and reception of control information with reduced PAPR.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional PUCCH transmission methods are used, then communication service is provided, but the peak-to-average power ratio (PAPR) increases
Solution Approach 1:
The PUCCH transmission is segmented into multiple PUCCH groups, where each group contains one or more PUCCHs. This segmentation allows the system to manage and control PAPR at the group level, selecting groups with lower PAPR characteristics for transmission, thereby reducing overall PAPR while maintaining communication reliability.
Solution Approach 2:
The invention changes the parameter selection criteria by introducing PAPR as a key factor in PUCCH group selection. The network device determines PUCCH groups based on PAPR values, and the terminal selects groups with lower PAPR for transmission. This parameter-based selection directly addresses the contradiction by optimizing power efficiency without compromising communication service.
2Reliability
If multiple PUCCHs are transmitted simultaneously, then control information coverage is improved, but power consumption increases
Solution Approach 1:
Instead of transmitting all configured PUCCHs, the terminal performs partial transmission by selecting only one PUCCH group with lower PAPR for transmission while dropping others. This partial action approach maintains essential control information transmission reliability while significantly reducing power consumption and energy loss.
Solution Approach 2:
The invention extracts and transmits only the most essential control information contained in the selected low-PAPR PUCCH group, rather than transmitting all PUCCHs simultaneously. This extraction approach ensures that critical control information is conveyed while minimizing power consumption and energy loss.
Data Source
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AI summary
Disclosed are a method for physical uplink control channel transmission/reception between a terminal and a base station in a wireless communication system, and an apparatus supporting the same. More particularly, a method for physical uplink control channel (PUCCH) transmission/reception between a terminal and a base station, disclosed herein, can reduce a peak-to-average power ratio (PAPR).