PUCCH Multi-PRB Allocation for Higher Power and Coverage
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Solution Overview
Problem
Existing wireless communication systems face challenges in boosting transmission power and ensuring high reliability, particularly in unlicensed spectra above 52.6 GHz, where power spectrum density is limited, leading to reduced PUCCH coverage.
Innovation Solution
The method involves configuring physical uplink control channel (PUCCH) resources with multiple physical resource blocks (PRBs) and specific formats, such as PUCCH format 0, 1, or 4, to enhance transmission power and reliability by optimizing PUCCH resource allocation in frequency domain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If PUCCH resource is limited to single PRB in frequency domain, then resource allocation is simple, but transmission power and coverage are limited
Solution Approach 1:
The patent changes the parameter of PUCCH resource allocation by extending it from single PRB to multiple PRBs in frequency domain. This parameter change enables increased transmission power through frequency hopping across multiple PRBs, thereby improving coverage and reliability while managing complexity through standardized configuration procedures
2Reliability
If PUCCH resource is extended to multiple PRBs, then transmission power and reliability are improved, but resource configuration complexity increases
Solution Approach 1:
The patent extends PUCCH resource allocation to multiple PRBs with frequency hopping, improving reliability through diversity. The complexity is managed by defining specific configuration parameters (starting PRB, number of PRBs, hopping pattern) that can be systematically configured and signaled through standardized procedures
Solution Approach 2:
The patent introduces dynamic frequency hopping across multiple PRBs for PUCCH transmission. This dynamic approach improves reliability by spreading transmissions across different frequency resources, while the hopping patterns are controlled through configuration parameters that balance performance and complexity
3Length of moving object
If frequency hopping is applied to PUCCH, then coverage and robustness are improved, but processing complexity increases
Solution Approach 1:
The patent applies frequency hopping to PUCCH transmission, creating dynamic frequency transitions that improve coverage and robustness against fading. The processing complexity is managed by defining structured hopping patterns based on configurable parameters, allowing the system to benefit from frequency diversity while maintaining tractable processing requirements
Data Source
AI summary
An apparatus and a method of wireless communication are provided. The method by a user equipment (UE) includes determining, by the UE from a base station, a configuration of a physical uplink control channel (PUCCH) resource, wherein the PUCCH resource in frequency domain comprises one or more physical resource blocks (PRBs) and corresponds to a PUCCH format 0, a PUCCH format 1, or a PUCCH format 4. This can solve issues in the prior art, provide a method to boost a transmission power of PUCCH, provide a good communication performance, and/or provide high reliability.