UE RRM Measurement Scheduling Across DRX Cycles and WUS Detection
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately and efficiently transmitting and receiving signals, particularly in managing radio resources and performing radio resource management (RRM) measurements.
Innovation Solution
The method involves a user equipment (UE) performing RRM measurements based on specific waveform configurations, including discontinuous reception (DRX) cycles, wake-up signals (WUS), and synchronization signal blocks (SSB), with separate reception procedures for different waveforms to optimize power consumption and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE performs RRM measurement every DRX cycle using the first reception procedure, then measurement accuracy is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic RRM measurements at intervals of M DRX cycles rather than every DRX cycle, reducing the frequency of high-power reception operations while maintaining adequate measurement accuracy for network operations
Solution Approach 2:
The patent changes the measurement frequency parameter from every DRX cycle to every M DRX cycles, and dynamically selects between two reception procedures based on operational requirements, optimizing the balance between measurement accuracy and power consumption
2Measurement precision
If the UE uses the first reception procedure for RRM measurement, then measurement accuracy is improved, but the procedure complexity increases
Solution Approach 1:
The patent divides the reception procedure into two distinct types (first and second reception procedures), each optimized for specific scenarios, allowing the UE to select the appropriate procedure based on current operational context rather than always using the more complex first procedure
Solution Approach 2:
The patent introduces dynamic selection between two reception procedures based on whether it is an on-duration occasion, allowing the system to adapt the level of processing complexity to the actual operational requirements at each moment
3Loss of time
If the UE performs RRM measurement at every on-duration occasion, then measurement freshness is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic RRM measurements with a period of M DRX cycles rather than at every on-duration occasion, reducing the frequency of wake-up events and associated power consumption while maintaining sufficiently fresh measurements for network operations
Data Source
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AI summary
ABSTRACT: A method by which a terminal performs radio resource management (RRM) measurement in a wireless communication system, according to an example of the present disclosure, comprises: receiving discontinuous reception (DRX) configuration information including information about a DRX cycle; and performing RRM measurement at least once for each of M DRX cycles configured through the DRX configuration information, on the basis of a signal having a first type waveform, wherein the terminal may perform the RRM measurement in a first DRX cycle in which monitoring of a paging signal is performed, on the basis that a wake-up signal (WUS) having a second type waveform different from the first type waveform is detected while the terminal is in an RRC idle/inactive state.