Unified PDCCH Skipping and Search Space Set Group Switching Configuration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, such as 5G NR, face challenges in optimizing network services and managing increasing radio access demands, particularly in efficiently handling PDCCH skipping and search space set group switching.
Innovation Solution
A method and apparatus for supporting a common design of physical downlink control channel (PDCCH) skipping and search space set group (SSSG) switching, where user equipment (UE) receives configurations for these operations and performs them based on specific fields in downlink control information (DCI).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate configurations are used for PDCCH skipping and SSSG switching, then each operation can be independently optimized, but the device complexity and signaling overhead increase
Solution Approach 1:
The patent combines PDCCH skipping and SSSG switching configurations into a unified configuration structure. A single DCI message contains both the PDCCH skipping indication and SSSG switching indication, allowing the UE to process both operations simultaneously without requiring separate configuration procedures, thereby reducing device complexity and signaling overhead while maintaining independent optimization capability
Solution Approach 2:
The unified configuration structure serves multiple functions: it can indicate PDCCH skipping, SSSG switching, or both operations together. The DCI message is designed to be multi-functional, capable of carrying different types of indications based on the configured parameters, thus providing universal applicability across different operational scenarios
2Device complexity
If unified configuration is used for PDCCH skipping and SSSG switching, then signaling overhead is reduced, but flexibility in independent optimization is limited
Solution Approach 1:
The unified configuration structure is designed to be dynamic and configurable. The network can configure different parameters to enable or disable specific operations (PDCCH skipping, SSSG switching, or both) based on operational needs. The UE adapts its behavior according to the configured parameters, providing flexibility for independent optimization while maintaining a unified configuration approach
Solution Approach 2:
The patent uses parameter-based configuration where specific parameter values determine which operations are enabled. By changing parameter values in the unified configuration, the system can independently optimize different operations without requiring separate configuration structures, thus maintaining both simplicity and adaptability
3Reliability
If PDCCH monitoring is continuously performed, then control channel reliability is maintained, but power consumption increases
Solution Approach 1:
The patent implements periodic PDCCH monitoring by introducing PDCCH skipping opportunities. Instead of continuous monitoring, the UE monitors PDCCH at configured intervals or continues monitoring based on received indications. This periodic approach maintains necessary control channel reliability while significantly reducing power consumption during idle or low-activity periods
4Adaptability or versatility
If search space set group switching is performed frequently, then adaptability to different service types is improved, but processing overhead increases
Solution Approach 1:
The patent merges SSSG switching indication with PDCCH skipping indication in a unified configuration. By processing both indications together in a single DCI message, the switching operation complexity is reduced while maintaining the ability to frequently switch between search space set groups for different service types
Data Source
AI summary
A method performed by a user equipment (UE) is provided. In the method, at least one of a first configuration associated with a first operation of switching a search space set group and a second configuration associated with a second operation of skipping a physical downlink control channel monitoring are received. Downlink control information comprising a specific field associated with at least one of the first configuration and the second configuration is also received. When the first and second configurations are received, the first operation is performed based on a value in the specific field and the first configuration when the value in the specific field is one of a first set of values, and the second operation is performed based on the value in the specific field and the second configuration when the value in the specific field is one of a second set of values.