Reference Signal Switching for Low-Power UE RRM Synchronization
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Solution Overview
Problem
User Equipment (UE) in a non-connected state, such as idle or inactive, consumes excessive power due to frequent SSB measurements for RRM and synchronization, which existing methods fail to optimize efficiently.
Innovation Solution
Implementing a method where a base station sends effective condition information for using TRS/CSI-RS instead of SSB for RRM and synchronization, with UE determining conditions for using these signals based on threshold information and DCI indications, reducing power consumption by minimizing SSB measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UE performs frequent SSB measurements for RRM and synchronization, then measurement precision and synchronization accuracy are improved, but power consumption increases
Solution Approach 1:
The patent introduces TRS/CSI-RS as an intermediary reference signal that mediates between the UE and network for RRM measurements. Instead of directly measuring SSB, the UE uses TRS/CSI-RS which are transmitted more frequently and have better measurement characteristics, reducing the need for frequent SSB measurements while maintaining measurement accuracy
Solution Approach 2:
The patent changes the measurement parameter from SSB to TRS/CSI-RS. By changing which reference signal is measured, the system achieves better measurement precision with lower power consumption, as TRS/CSI-RS provide more stable and frequent measurement opportunities compared to SSB
2Use of energy by moving object
If UE uses TRS/CSI-RS for RRM measurements, then power consumption is reduced, but device complexity increases due to effective condition information processing
Solution Approach 1:
The patent implements a feedback mechanism where the base station sends effective condition information to the UE, and the UE feeds back measurement results. This feedback loop allows the system to dynamically adjust when to use TRS/CSI-RS versus SSB, managing complexity through intelligent control rather than always using the more complex TRS/CSI-RS path
Solution Approach 2:
The patent makes the measurement method dynamic by introducing effective condition information that can change over time. The system transitions from static SSB measurement to dynamic TRS/CSI-RS measurement based on real-time conditions, allowing flexibility that manages complexity through adaptability
Data Source
AI summary
In a method for processing information, a base station sends effective condition information for a reference signal. A user equipment receives the effective condition information for a reference signal. The effective condition information is configured to indicate an effective condition for using the reference signal for a first use.