Satellite Coverage-Aware Cell Measurement for Lower Power
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Solution Overview
Problem
Existing methods for neighbor cell measurement in terminal devices consume excessive power due to continuous measurements at NTN frequency points, even when the terminal device is out of satellite coverage, leading to inefficient energy usage.
Innovation Solution
A method where a network device sends indication information to the terminal device to perform cell measurements only when the terminal device is within the coverage of a satellite, based on satellite coverage information, using measurement starting and stopping conditions related to location and ephemeris data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device performs cell measurement at NTN frequency points continuously, then the measurement coverage is improved, but the power consumption increases
Solution Approach 1:
The terminal device performs cell measurement periodically based on satellite coverage information rather than continuously. The measurement is triggered only when the satellite is within a predetermined elevation angle range, creating a periodic measurement pattern that reduces power consumption while maintaining measurement coverage when satellites are visible.
Solution Approach 2:
The measurement behavior changes based on the satellite elevation angle parameter. When the elevation angle is within the predetermined range, measurement is performed; when outside the range, measurement is suspended. This parameter-based control optimizes the balance between measurement coverage and power consumption.
2Duration of action of stationary object
If the terminal device performs cell measurement when out of satellite coverage, then the measurement continuity is improved, but the energy efficiency deteriorates
Solution Approach 1:
Instead of continuous measurement, the terminal device performs measurement periodically when satellite coverage conditions are met. The measurement is suspended when satellites are not visible, avoiding energy waste while maintaining measurement capability during coverage periods.
Solution Approach 2:
The patent extracts the measurement action from continuous operation and performs it only when specific conditions (satellite visibility) are met. This selective measurement approach removes unnecessary energy consumption during out-of-coverage periods while maintaining measurement continuity when satellites are available.
Data Source
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AI summary
Disclosed in the present application is a cell measurement method, comprising: a terminal device receives first instruction information, the first instruction information being used for instructing the terminal device to execute or not to execute, according to coverage information of a satellite, cell measurement corresponding to a frequency point, the frequency point comprising a frequency point associated with the satellite. Also disclosed in the present application are a cell measurement method, an electronic device, and a storage medium.