UE Measurement Set Adaptation for Low-Power Reference Signal Switching
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Solution Overview
Problem
Battery-powered user equipment (UE) in wireless communication systems experiences high power consumption due to conditions that require switching between antennas or amplifying signals, which should be minimized to conserve power.
Innovation Solution
A user equipment (UE) interacts with a base station to activate a power saving mode based on triggering conditions, switching from a first RS-set to a second RS-set when conditions are met, using spatially correlated and high-quality RS-sets to reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE switches between antennas or amplifies signals to maintain communication quality, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent changes the parameter of reference signal set configuration by introducing triggering conditions that dynamically select between different RS-set configurations. When conditions are met, the UE switches from a first RS-set configuration to a second RS-set configuration, optimizing the balance between communication reliability and power consumption based on current channel conditions.
Solution Approach 2:
The patent implements dynamic adaptation of the reference signal set configuration through triggering conditions. The UE monitors channel quality indicators and dynamically switches between different RS-set configurations, making the system adaptive to changing communication conditions rather than using a fixed configuration.
2Measurement precision
If the UE uses multiple RS-sets for measurement and reporting, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the reference signal sets into multiple configurations (first RS-set and second RS-set), each optimized for different measurement scenarios. By dividing the measurement task across multiple segmented RS-sets and using triggering conditions to select appropriate segments, the system achieves high measurement precision while managing complexity through conditional activation rather than continuous operation of all segments.
Data Source
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AI summary
A user equipment (UE) interacts with a base station (BS) to activate a power saving mode based on a triggering condition. The UE receives reference signals (RSs) from a first RS-set of quasi-colocated (QCLd) RSs, derives a measurement result by measuring the RSs, and uses the first measurement result (and in some cases measurements results for other RS set) for evaluation of the triggering condition to identify whether the triggering condition is satisfied. The UE and the BS switch from the first RS-set to a second RS-set once the triggering condition is satisfied.