CORESET 0 Configuration via SSB Subcarrier Spacing Alignment
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Solution Overview
Problem
Current wireless communication technologies face challenges in configuring Control Resource Sets (CORESET) #0, particularly with new subcarrier spacing (SCS) configurations, which can lead to bandwidth mismatches and increased transmission delays, especially in high-frequency bands like 52.6 GHz to 71 GHz, where existing designs do not support higher SCS and fail to optimize resource allocation efficiently.
Innovation Solution
Configuring CORESET #0 according to the subcarrier spacing (SCS) of the Synchronization Signal Block (SSB), allowing for flexible multiplexing patterns, resource block allocation, and offset adjustments to ensure compatibility with user equipment (UE) bandwidth, thereby supporting higher SCS values like 240 kHz, 480 kHz, and 960 kHz, and reducing time domain resources to improve transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing CORESET #0 configuration methods are used, then device complexity is reduced, but bandwidth mismatch and transmission delays occur in high-frequency bands
Solution Approach 1:
The patent changes the subcarrier spacing parameter from fixed to variable, supporting multiple SCS values (120 kHz, 240 kHz, 480 kHz, 960 kHz) for CORESET #0 to match different SSB SCS configurations. This enables efficient resource allocation in high-frequency bands while maintaining configuration manageability through standardized parameter relationships.
2Loss of time
If higher subcarrier spacing values are supported, then transmission delays are reduced, but compatibility with existing designs is lost
Solution Approach 1:
The patent makes CORESET #0 configuration universal by enabling it to adapt to multiple SSB SCS values (120 kHz, 240 kHz, 480 kHz, 960 kHz). The configuration method maintains backward compatibility while extending support to higher frequency bands, allowing a single system to serve multiple frequency ranges and deployment scenarios.
3Adaptability or versatility
If CORESET #0 is configured independently of SSB SCS, then configuration flexibility is increased, but bandwidth mismatch occurs
Solution Approach 1:
The patent establishes a dependent relationship between CORESET #0 SCS and SSB SCS parameters, where CORESET #0 SCS is configured based on the detected SSB SCS value. This ensures precise bandwidth alignment and eliminates mismatches while maintaining the flexibility to adapt to different frequency bands and deployment scenarios through standardized parameter relationships.
Data Source
AI summary
A method for configuring a control resource set (CORESET) #0 is performed by a base station, and includes: configuring the CORESET #0 according to a subcarrier spacing (SCS) of a synchronization signal and physical broadcast channel block (SSB).