CORESET Configuration for PDCCH Monitoring in Multi-Subband BWPs
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in wireless signal transmission and reception, particularly in configuring control resource sets (CORESETs) across multiple subbands, which affects the monitoring and detection of physical downlink control channels (PDCCHs) in bandwidth parts (BWP) with multiple subbands.
Innovation Solution
A method and apparatus that receive CORESET configuration information as part of the RRC connection procedure, monitoring PDCCH candidates within the BWP, and detecting PDCCHs, where the same CORESET is configured for each subband based on frequency resources, allowing for efficient wireless signal transmission and reception across multiple subbands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the same CORESET is configured for each subband based on frequency resources confined to one subband, then monitoring and detection efficiency of PDCCH is improved, but device complexity increases due to multiple CORESET configurations across subbands
Solution Approach 1:
The bandwidth part (BWP) is divided into multiple subbands, and a separate CORESET is configured for each subband. This segmentation allows the system to process and monitor PDCCH candidates in smaller, more manageable frequency regions, improving detection efficiency while maintaining organized device complexity through structured division.
Solution Approach 2:
Each subband is configured with its own CORESET parameters (frequency resources, size, position) optimized for that specific local frequency region. This local customization enables tailored monitoring strategies for different subbands, improving overall system efficiency by adapting to local frequency characteristics rather than using a uniform configuration across the entire BWP.
2Measurement precision
If frequency resources are confined to one subband for CORESET configuration, then monitoring precision within that subband is improved, but adaptability across the entire BWP deteriorates
Solution Approach 1:
The BWP is segmented into multiple subbands, each with its own CORESET configuration. This allows precision monitoring within each subband while the collection of subbands collectively provides full BWP coverage, resolving the contradiction between local precision and global adaptability.
Solution Approach 2:
The system implements a universal CORESET configuration approach where the same CORESET structure is applied across multiple subbands. This multi-functional configuration enables the system to maintain consistent monitoring precision across different frequency regions while adapting to the entire BWP, making the solution universally applicable regardless of which subband is active.
Data Source
AI summary
The present invention relates to a wireless communication system and, more specifically, to a method and a device therefor, the method comprising the steps of: receiving, as a part of an RRC connection procedure, CORESET configuration information relating to a BWP, the CORESET configuration information including information relating to a frequency resource configuring a CORESET; monitoring PDCCH candidates in one or more CORESETs in the BWP; and detecting a PDCCH on the basis of the monitoring, wherein the same CORESET is configured for each of subbands in the BWP according to the frequency resource, on the basis of (i) the BWP including a plurality of subbands, and (ii) the frequency resource confined within one subband.