RRM Measurement Parameter Adjustment for Terminal Power Savings
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Solution Overview
Problem
In communication systems, excessive RRM measurements by terminal devices increase power consumption, affecting battery life and mobility support.
Innovation Solution
Determining and using specific RRM measurement parameters based on the number of receiving antennas in terminal devices, with network devices sending indication information to optimize measurement parameters for accurate resource management and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the terminal device performs frequent RRM measurements to support mobility, then the mobility support is improved, but the power consumption increases
Solution Approach 1:
The patent dynamically adjusts the RRM measurement parameters (such as measurement frequency, measurement bandwidth, and measurement timing) based on the terminal device's mobility state. When the terminal is detected to be stationary or moving slowly, the measurement frequency is reduced or suspended. When the terminal is moving quickly, the measurement frequency is increased. This dynamic adaptation resolves the contradiction by matching measurement intensity to actual mobility needs, improving mobility support only when necessary while reducing power consumption during stationary periods.
Solution Approach 2:
The patent changes key measurement parameters based on mobility conditions: measurement period (Tm), measurement bandwidth (BM), and reference signal configuration. By adjusting these parameters according to the terminal's movement state, the system achieves efficient mobility support with minimized power consumption. For example, extending the measurement period or reducing measurement bandwidth when mobility is low directly addresses the power consumption issue while maintaining adequate mobility support when needed.
2Measurement precision
If the terminal device performs comprehensive RRM measurements on all cells, then the measurement precision is improved, but the power consumption increases
Solution Approach 1:
The patent extracts and prioritizes measurements of only the most relevant cells based on terminal mobility and signal conditions. Instead of measuring all neighboring cells comprehensively, the system identifies and measures only the serving cell and a limited number of candidate neighboring cells that are most likely to be relevant for handover decisions. This extraction approach maintains measurement precision for critical cells while significantly reducing overall power consumption by eliminating unnecessary measurements of distant or weak signal cells.
Solution Approach 2:
The patent applies different measurement qualities and intensities to different cells based on their local characteristics. For the serving cell, comprehensive measurements are performed to ensure high precision. For neighboring cells, measurements are performed selectively based on signal strength, distance, and handover likelihood. This local differentiation of measurement quality ensures that measurement precision is maintained where most needed (serving and candidate cells) while reducing power consumption for less critical measurements.
Data Source
AI summary
A radio resource management (RRM) measurement method, includes: determining a first RRM measurement parameter corresponding to a number of receiving antennas in a terminal device based on a mapping relationship between a number of antennas and an RRM measurement parameter; and performing an RRM measurement based on the first RRM measurement parameter.