Relaxed RRM Measurement Timing for UE Power Saving
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Solution Overview
Problem
Existing wireless communication systems lack specific details for implementing relaxed Radio Resource Management (RRM) procedures to improve power saving and battery lifetime for user equipment with reduced capabilities.
Innovation Solution
A method and apparatus for user equipment and base stations to enable relaxed RRM measurements based on user equipment state, position, mobility, and service type, using configurable periods and conditions to optimize measurement intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If relaxed RRM measurement is implemented for user equipment with reduced capabilities, then power saving and battery lifetime are improved, but measurement precision and network performance may deteriorate
Solution Approach 1:
The patent applies dynamics by making the RRM measurement period configurable and adaptable based on user equipment state, mobility level, and network conditions. The measurement period can be dynamically adjusted between relaxed mode (longer periods) for power saving and normal mode (shorter periods) for improved measurement precision, resolving the contradiction between energy efficiency and measurement accuracy.
Solution Approach 2:
The patent changes the parameter of measurement period duration based on different operating conditions. By adjusting this key parameter dynamically - using longer periods when user equipment is stationary or in low-mobility states, and shorter periods when mobility is high - the system optimizes the trade-off between power consumption and measurement precision.
2Duration of action of stationary object
If relaxed RRM measurement is implemented, then battery lifetime is extended, but network performance may deteriorate
Solution Approach 1:
The system dynamically adjusts measurement frequency based on user equipment mobility state and network conditions. When user equipment is stationary or moves slowly, relaxed measurement with longer periods extends battery lifetime. When mobility is high or network conditions require better performance, the system switches to normal measurement modes to maintain network reliability.
Solution Approach 2:
The patent implements periodic RRM measurements with configurable periods. By using longer measurement periods during low-mobility states, the system reduces measurement frequency to extend battery lifetime while maintaining adequate network performance through strategic measurement timing at critical moments.
3Loss of energy
If measurement period is extended for power saving, then power consumption is reduced, but measurement frequency decreases
Solution Approach 1:
The patent dynamically adjusts the measurement period parameter based on user equipment state, mobility level, and network conditions. The system extends the measurement period to reduce power consumption during low-mobility states while maintaining adequate measurement frequency during high-mobility states, thus resolving the contradiction between energy saving and measurement frequency.
Solution Approach 2:
The system changes the measurement period parameter adaptively - using longer periods (e.g., 5 minutes or more) when user equipment is stationary or in low-mobility states to reduce power consumption, and shorter periods when mobility is high to maintain measurement frequency and network performance.
Data Source
AI summary
The present application relates to a user equipment, a base station, and a method for relaxed RRM measurement. The base station transmits information to the user equipment. The user equipment receives the information from a base station on a condition for enabling a relaxed RRM measurement, and then performs the relaxed RRM measurement during a period according to the information. The period is associated with a state of the user equipment.