CORESET Configuration for Shared Spectrum Channels
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Solution Overview
Problem
Existing wireless communication technologies, such as LTE and NR, face challenges in efficiently managing shared radio frequency spectrum channels, particularly in configuring core resource sets (CORESET) for unlicensed frequency spectrum channels, which affects communication efficiency and compatibility with licensed channels.
Innovation Solution
The method involves configuring a CORESET for shared radio frequency spectrum channels with a plurality of resource blocks based on specific granularities, such as subcarrier spacing and resource block indices, and transmitting information to user equipment (UE) to facilitate communication using these configured resource blocks, differing from licensed frequency spectrum channel configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a unified CORESET configuration is used for both licensed and unlicensed spectrum channels, then device complexity is reduced, but communication efficiency and spectral utilization deteriorate due to inability to optimize for shared channel characteristics
Solution Approach 1:
The patent applies local quality by configuring different CORESET parameters specifically for unlicensed spectrum channels versus licensed channels. The method determines whether a channel is unlicensed and applies specialized configuration including adjusted resource block granularity, modified control region positioning, and adapted monitoring settings to optimize performance for shared spectrum characteristics while maintaining licensed channel performance.
2Adaptability or versatility
If licensed frequency spectrum channel configuration is applied to shared radio frequency spectrum channels, then compatibility with existing systems is maintained, but spectral utilization and communication efficiency deteriorate
Solution Approach 1:
The patent implements parameter changes by modifying CORESET configuration parameters specifically for unlicensed spectrum. This includes changing resource block granularity, adjusting control region size and position, modifying monitoring periodicity, and adapting search space configurations to match the characteristics of shared spectrum channels, thereby improving spectral utilization while maintaining compatibility with existing NR frameworks.
3Ease of manufacture
If standard resource block granularity is used for shared channels, then configuration simplicity is maintained, but control precision and resource allocation efficiency deteriorate
Solution Approach 1:
The patent applies dynamics by making the resource block granularity configurable rather than fixed. The system can dynamically adjust the granularity level based on the specific unlicensed channel characteristics and deployment scenario, allowing for optimized resource allocation precision while maintaining configuration simplicity through automated detection and selection of appropriate granularity parameters.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), information identifying a core resource set (CORESET) for one or more shared radio frequency spectrum channels. The CORESET may be configured into a plurality of resource blocks based at least in part on a resource block granularity associated with the one or more shared radio frequency spectrum channels. The UE may communicate with the BS using the CORESET. Numerous other aspects are provided.