Unlicensed-Band CORESET Configuration for 5G Channel Raster Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing demand for wireless data traffic due to the growing number of subscribers and mobile data devices necessitates improvements in radio interface efficiency and coverage, particularly in unlicensed bands.
Innovation Solution
A method and system for efficient CORESET configuration on unlicensed bands, including frequency domain offset and sub-RB-level offset indication for CORESET #0, which considers the differences in synchronization and channel raster designs between licensed and unlicensed bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CORESET configuration is optimized for licensed bands, then radio interface efficiency is improved, but it cannot be directly applied to unlicensed bands due to differences in synchronization and channel raster designs
Solution Approach 1:
The patent modifies the CORESET configuration parameters to accommodate the specific characteristics of unlicensed bands. This includes adjusting the frequency domain offset and sub-RB-level offset based on the unlicensed band's synchronization and channel raster design, thereby adapting the configuration from licensed band standards to unlicensed band requirements while maintaining radio interface efficiency.
2Productivity
If unlicensed band operation is implemented, then spectrum utilization is improved, but additional configuration complexity is required due to different raster designs
Solution Approach 1:
The patent performs preliminary calculations and configurations for the frequency domain offset and sub-RB-level offset before actual communication begins. By pre-determining these offset values based on the unlicensed band's synchronization and channel raster design, the system avoids complex real-time adjustments and reduces operational configuration complexity while enabling effective unlicensed band utilization.
3Speed
If higher data rates are pursued, then wireless communication performance is improved, but system complexity increases
Solution Approach 1:
The patent applies localized optimizations to specific configuration parameters such as the frequency domain offset and sub-RB-level offset, rather than redesigning the entire system. By improving only the critical CORESET configuration aspects that impact data rate performance in unlicensed bands, the system achieves higher data rates without proportionally increasing overall system complexity.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus in a wireless communication system is provided.