Configurable CORESET Groups for Wireless Traffic Differentiation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently configuring control channel resource sets (CORESETs) to meet varying quality of service requirements for different types of traffic, such as Ultra Reliable and Low Latency Communications (URLLC) and enhanced Mobile Broadband (eMBB), as existing standards do not adequately differentiate between these scenarios.
Innovation Solution
The technology introduces configurable groups of control channel resource sets (CORESETs) that can be associated with specific usage scenarios, such as URLLC or eMBB, allowing for distinct configurations of search spaces, demodulation reference signals, and aggregation levels to cater to different quality of service requirements, enabling flexible resource allocation based on traffic types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single control channel resource set configuration is used for all traffic types, then device complexity is reduced and ease of operation is improved, but quality of service requirements for different traffic types (URLLC, eMBB) cannot be differentiated
Solution Approach 1:
The patent segments control channel resource sets into multiple groups, where each group is associated with specific usage scenarios (e.g., URLLC, eMBB). This segmentation allows the system to provide differentiated quality of service for different traffic types while managing complexity through organized grouping rather than completely separate configurations.
Solution Approach 2:
The patent introduces dynamic configuration where control channel resource sets can be selectively activated or deactivated based on current traffic requirements. The network can dynamically assign different CORESET groups to different usage scenarios, allowing the system to adapt to varying quality of service needs without maintaining all configurations simultaneously active.
2Reliability
If separate control channel resource set configurations are created for each usage scenario, then quality of service requirements are met, but configuration complexity and resource overhead increase
Solution Approach 1:
The patent creates control channel resource set groups that can serve multiple usage scenarios. A single CORESET group configuration can be associated with multiple usage scenarios, allowing the same resource set to be reused across different traffic types when appropriate, thereby reducing overall configuration complexity while still meeting quality of service requirements.
Solution Approach 2:
The patent allows flexible parameter configuration within control channel resource sets, including adjustable aggregation levels, search space configurations, and monitoring parameters. These parameters can be optimized for specific usage scenarios without requiring completely separate resource set definitions, reducing configuration overhead while maintaining reliability.
3Reliability
If control channel resource sets are configured with high aggregation levels for reliability, then URLLC requirements are met, but data rates for eMBB traffic are reduced
Solution Approach 1:
The patent applies different aggregation levels and control channel configurations locally to specific usage scenarios. URLLC traffic can be assigned control channel resource sets with higher aggregation levels for enhanced reliability, while eMBB traffic can use configurations with lower aggregation levels to maximize data rates. Each usage scenario receives locally optimized quality characteristics.
Solution Approach 2:
The patent segments control channel resources into scenario-specific groups where each group can have independently optimized parameters. This allows URLLC and eMBB to have separate configuration profiles with appropriate aggregation levels, eliminating the need to compromise either reliability or data rate for a single universal configuration.
4Adaptability or versatility
If multiple control channel resource sets are configured for different usage scenarios, then adaptability to traffic types is improved, but resource overhead and processing time increase
Solution Approach 1:
The patent performs preliminary configuration by pre-defining control channel resource set groups and associating them with usage scenarios before actual data transmission. The network can pre-configure multiple CORESET groups with different parameters and then quickly activate the appropriate group based on current traffic requirements, reducing real-time processing time while maintaining adaptability.
Solution Approach 2:
The patent merges the configuration management of multiple control channel resource sets into unified groups that can be collectively activated or deactivated. Instead of individually managing each control channel resource set, the system manages them as grouped units associated with usage scenarios, reducing configuration overhead and processing time while preserving adaptability to different traffic types.
Data Source
AI summary
The described technology is generally directed towards wireless communications systems in which multiple control channel resource sets (CORESETs) are configured into a CORESET group. The CORESET group may be associated with a usage scenario/quality of service requirement, and used by user equipment to decode downlink control information corresponding to that usage scenario. For example, one CORESET group can be used for URLLC traffic, another for eMBB type traffic and another for mMTC traffic. Different CORESET groups may be used to provide different aggregation level sets, different DMRS pattern configurations, different search spaces, different transmission protocols/schemes, different beam management and recovery procedures, different radio link monitoring and radio link failure procedures, and so on. Different CORESET groups may be associated with different transmission points.