Terminal SN Configuration Selection for 5G RRC Resumption
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Solution Overview
Problem
In 5G networks, especially during the transition phase with both LTE and NR coverage, there is a challenge in managing Dual Connectivity (DC) architecture where User Equipment (UE) may enter an inactive state without appropriate Secondary Node (SN) information being configured during Radio Resource Control (RRC) connection resumption, leading to inefficiencies in network resource management.
Innovation Solution
A method where a terminal receives configuration information from a target base station, determines and activates a target SN configuration, allowing for efficient management of SNs in both single and multiple configuration scenarios, ensuring optimal network resource utilization by selecting active SN configurations based on signal measurement results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the terminal enters inactive state without SN information configuration, then power consumption is reduced, but network resource management efficiency deteriorates
Solution Approach 1:
The target base station pre-configures multiple SN configurations in the first configuration information before the terminal enters inactive state. This preliminary action ensures that when the terminal resumes connection, appropriate SN information is already available, avoiding network resource management inefficiency while maintaining power efficiency during inactive state.
Solution Approach 2:
The terminal autonomously determines and activates the target SN configuration based on measurement results without requiring network intervention during the activation process. This self-service mechanism improves network resource management efficiency by reducing signaling overhead while allowing the terminal to manage its own SN configurations efficiently.
2Adaptability or versatility
If multiple SN configurations are provided, then adaptability is improved, but device complexity increases
Solution Approach 1:
The terminal dynamically selects and activates the appropriate target SN configuration based on real-time measurement results of cell signals. This dynamic selection mechanism provides adaptability to different network conditions while simplifying configuration management by automatically choosing the best configuration rather than requiring manual management of multiple static configurations.
Solution Approach 2:
The terminal uses measurement results as feedback to determine which SN configuration to activate. This feedback mechanism enables the system to adapt to changing network conditions while keeping the device complexity manageable through automated decision-making based on simple measurement comparisons rather than complex configuration management.
3Loss of information
If SN configuration is not configured during RRC connection resumption, then signaling overhead is reduced, but connection recovery speed deteriorates
Solution Approach 1:
Multiple SN configurations are pre-configured in the first configuration information before RRC connection resumption. This preliminary action eliminates the need for additional signaling during connection recovery, as the terminal can directly select and activate the appropriate SN configuration from the pre-configured options, thus reducing both signaling overhead and connection recovery time.
Data Source
AI summary
Embodiments of the present application provide an information configuration method and a terminal. The method includes: a terminal receives first configuration information sent by a target base station, the first configuration information comprising at least one secondary node configuration; if the first configuration information comprises one secondary node configuration, after the terminal receives the first configuration information, the secondary node configuration is in an active state; if the first configuration information comprises multiple secondary node configurations, the terminal selects, on the basis of the cell signal measurement signal in an inactive state, one secondary node configuration from the multiple secondary node configurations, and informs the target base station of the selected secondary node configuration so that the secondary node configuration is in an active state.