Unlicensed Spectrum Control Resource Set Configuration Switching
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Solution Overview
Problem
In new generation wireless communication systems operating on unlicensed spectra, channel detection inconsistencies lead to incomplete control information transmission due to high detection complexity, especially when using control resource sets (CORESETs) with continuous or discontinuous frequency configurations, resulting in suboptimal reception performance.
Innovation Solution
A method and device for processing a control resource set that switches its configuration on an unlicensed spectrum based on determined switching conditions, such as channel occupancy or explicit indication from a base station, to ensure effective control signaling detection with reduced complexity, using techniques like switching indication information and orthogonal sequence sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If channel detection is performed with high complexity to ensure accurate control information transmission on unlicensed spectrum, then detection accuracy is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent applies dynamics by making the control resource set configuration adaptable and switchable based on channel conditions. The UE can switch between different CORESET configurations (first and second configurations) depending on whether channel occupancy is detected, allowing the system to dynamically adjust detection complexity and resources match actual channel availability rather than using a fixed high-complexity approach always
Solution Approach 2:
The patent changes parameters by switching between different CORESET configurations with different detection parameters. When channel occupancy is detected, the system switches to a configuration optimized for that state; when no occupancy is detected, it switches to a different configuration. This parameter switching allows the system to achieve accurate detection without permanently maintaining high complexity
2Device complexity
If control resource set configuration is fixed to ensure simple processing, then device complexity is reduced, but reception performance deteriorates due to incomplete control information transmission
Solution Approach 1:
The patent transforms the static CORESET configuration into a dynamic one that can switch between at least two configurations. The UE determines channel occupancy status and switches configurations accordingly, ensuring that the control resource set adapts to actual channel conditions. This dynamic adaptation maintains simple processing at any given moment while improving overall reception performance through condition-based optimization
Solution Approach 2:
The patent implements multi-functionality by designing the control resource set to serve multiple purposes through different configurations. The same control resource set structure can operate in different modes (first configuration for one channel state, second configuration for another state), making it universally applicable to various channel conditions without requiring separate dedicated configurations for each scenario
3Productivity
If continuous frequency configuration is used for control resource set to improve resource utilization, then spectrum efficiency is improved, but detection complexity increases due to channel detection inconsistencies
Solution Approach 1:
The patent applies segmentation by dividing the control resource set into at least two different configurations. Instead of using a single continuous frequency configuration that causes detection inconsistencies, the system segments the resources into multiple configurable parts that can be independently adjusted and switched based on channel conditions, reducing detection complexity while maintaining spectrum efficiency
4Object-affected harmful factors
If discontinuous frequency configuration is used for control resource set to reduce interference, then interference resistance is improved, but reception performance deteriorates due to incomplete control information
Solution Approach 1:
The patent uses dynamics to switch between different discontinuous frequency configurations based on channel occupancy detection. Rather than using a fixed discontinuous configuration that may leave gaps causing incomplete control information, the system dynamically adjusts the configuration parameters to ensure continuous and complete control information transmission while maintaining interference resistance through selective frequency placement
Data Source
AI summary
A control resource set processing method is provided. In the method: a terminal switches a configuration of a control resource set on an unlicensed spectrum for detecting a control signaling in response to determining that a switching condition for the control resource set is met.