Terminal Apparatus SCG Deactivation for Power Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In dual connectivity technology for 5G NR, terminal apparatuses need to continuously monitor multiple cell groups to minimize communication delay during high-capacity data transmission, leading to significant power consumption.
Innovation Solution
A terminal apparatus and base station apparatus system that allows for the deactivation and activation of Secondary Cell Groups (SCGs) based on commands from the base station, with the option to suspend radio link monitoring during SCG deactivation, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the terminal apparatus continuously monitors multiple cell groups to minimize communication delay during high-capacity data transmission, then communication latency is reduced, but power consumption increases significantly
Solution Approach 1:
The patent applies dynamics by making the monitoring state of cell groups changeable rather than fixed. The terminal apparatus can dynamically transition between monitoring and non-monitoring states of SCG based on actual communication needs, allowing flexible adaptation between low latency requirement and power saving requirement
Solution Approach 2:
The patent implements periodic action through the deactivation/activation mechanism of SCG monitoring. Instead of continuous monitoring, the system periodically activates monitoring only when needed (e.g., when data transmission is detected), and deactivates it during idle periods, reducing overall power consumption while maintaining low latency when required
2Use of energy by moving object
If the terminal apparatus infrequently monitors or stops monitoring some cell groups to reduce power consumption, then power consumption is reduced, but communication delay increases
Solution Approach 1:
The system dynamically adjusts monitoring frequency based on actual communication state. When data transmission is detected, monitoring is activated to ensure low latency; when idle, monitoring is deactivated to save power, thus adapting the trade-off between power consumption and communication delay to actual needs
Solution Approach 2:
The terminal apparatus uses feedback from the base station about data transmission status to determine whether to activate or deactivate SCG monitoring. This feedback mechanism ensures that monitoring is activated only when data communication is occurring, preventing unnecessary power consumption during idle periods while maintaining readiness for low-latency communication when needed
Data Source
AI summary
A processing unit of a terminal apparatus communicates with a base station apparatus using an MCG and an SCG, and determines whether to perform radio link monitoring and/or beam failure detection in the terminal apparatus based on whether information indicating whether to perform radio link monitoring and/or beam failure detection is included in an SCG deactivation command transmitted from the previous base station apparatus, and the terminal apparatus determines whether to perform radio link monitoring and/or beam failure detection based on a determination of whether to perform radio link monitoring and/or beam failure detection.