Cell-Group UE Assistance Signaling for Dual Connectivity Power Control
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Solution Overview
Problem
Existing wireless communication systems, particularly in NR and LTE, face challenges in efficiently managing UE overheating and resource allocation in dual connectivity scenarios, which can impact performance and user experience.
Innovation Solution
The introduction of cell group (CG) specific UE assistance information (UAI) generation and signaling by the UE to the network, allowing for tailored resource management and power saving strategies in multiple radio dual connectivity configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UE provides detailed assistance information to network entity, then resource allocation and power saving strategies are improved, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent segments UE assistance information into cell group-specific components, allowing the UE to provide detailed information only for relevant cell groups rather than all cells. This segmentation enables efficient resource allocation for specific cell groups while reducing overall signaling overhead by excluding unrelated cell group information.
Solution Approach 2:
The patent applies local quality by making assistance information specific to particular cell groups (MCG or SCG) rather than providing uniform information across all cell groups. This allows the network to receive detailed assistance information where needed while avoiding unnecessary signaling for other cell groups, thus improving resource allocation efficiency without proportionally increasing signaling complexity.
2Use of energy by moving object
If UE provides cell group specific assistance information, then power saving strategies are improved, but information processing requirements increase
Solution Approach 1:
The patent segments assistance information by cell group, allowing the UE to process and transmit only the necessary information for specific cell groups. This segmentation reduces the total amount of information processing required compared to providing comprehensive UE assistance information for all cell groups, thereby improving power efficiency while managing processing complexity.
Solution Approach 2:
The patent applies partial action by having the UE provide assistance information only for relevant cell groups rather than all cell groups. This partial provision of information reduces the processing burden on both the UE and network entity, improving power efficiency without requiring complete information processing for all cell groups.
3Loss of energy
If network entity receives detailed UE assistance information, then power saving configuration is improved, but signaling overhead increases
Solution Approach 1:
The patent segments UE assistance information into cell group-specific components, allowing the network entity to receive detailed information only for relevant cell groups. This segmentation enables effective power saving configuration for specific cell groups while reducing overall signaling overhead by excluding information for unrelated cell groups.
Solution Approach 2:
The patent applies local quality by making assistance information specific to particular cell groups (MCG or SCG) rather than providing uniform information across all cell groups. This allows the network to receive detailed assistance information where needed for power saving while avoiding unnecessary signaling for other cell groups, thus improving power saving performance without proportionally increasing signaling overhead.
Data Source
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AI summary
Certain aspects of the present disclosure provide a technique for signaling user equipment (UE) assistance information (UAI) that is specific to a particular cell group (CG) (e.g., a secondary CG (SCG)). For example, the technique may be executed to generate CG specific UAI, which may indicate a configuration parameter for the UE when operating in a multiple radio dual connectivity (MR-DC) mode. The UE may signal the UAI to a network entity along with an indication of the CG to which the UAI is to be applied.