Serving Cell Measurement Relaxation for Stationary Terminals
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Solution Overview
Problem
Existing communication technologies fail to relax measurements of the serving cell effectively, particularly in scenarios where the terminal device is stationary, leading to unnecessary power consumption and inefficient energy usage.
Innovation Solution
A method and device for relaxing the measurement of the serving cell by indicating or determining a measurement state, including normal and relaxed measurements, using system information broadcast (SIB) or dedicated signaling, and configuring timers to manage the measurement state of terminal devices based on their type, mobility, and power conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device continuously measures the serving cell to ensure network connectivity and timely cell reselection, then the reliability of communication is improved, but the energy consumption increases
Solution Approach 1:
The patent implements dynamic measurement relaxation by introducing a measurement relaxation timer (TsearchDeltaP) that adapts the measurement behavior based on time and signal conditions. The terminal device transitions between normal measurement and relaxed measurement states dynamically, adjusting measurement activity according to whether the serving cell signal remains stable over a defined time period, thus balancing reliability and energy consumption
Solution Approach 2:
The patent changes the measurement parameter state by introducing a relaxation mechanism that modifies the measurement frequency and intensity. When the serving cell RSRP remains above a threshold for a continuous time period, the terminal switches from continuous measurement to relaxed measurement with reduced frequency, thereby reducing energy consumption while maintaining acceptable reliability through conditional resumption of normal measurement
2Loss of energy
If the terminal device relaxes the measurement of the serving cell to save energy, then the energy efficiency is improved, but the measurement precision and timeliness of cell reselection deteriorates
Solution Approach 1:
The patent implements a feedback mechanism through the measurement relaxation timer and threshold monitoring. The terminal continuously monitors serving cell RSRP and compares it against a threshold, using this feedback to determine whether to maintain relaxed measurement or resume normal measurement. This feedback loop ensures measurement precision is maintained when needed while allowing energy savings when conditions are stable
Solution Approach 2:
The patent applies preliminary action by establishing a measurement relaxation timer and threshold criteria before actual measurement relaxation occurs. The terminal pre-configures the conditions under which relaxed measurement will be applied, ensuring that measurement precision is preserved during transitions and that cell reselection can be timely resumed when signal conditions change, thus preventing premature or inaccurate relaxation decisions
3Loss of time
If the terminal device performs normal measurement of the serving cell, then the timeliness of detecting network changes is improved, but the power consumption increases
Solution Approach 1:
The patent implements periodic action through the measurement relaxation timer mechanism. Instead of continuous measurement, the terminal performs measurements at periodic intervals determined by the timer configuration. When the serving cell signal remains stable for the timer duration, measurements are performed less frequently, reducing power consumption while still detecting network changes within acceptable time frames through the periodic measurement schedule
Data Source
AI summary
A method and device for measurement relaxation are provided. The method comprises: indicating the measuring state of a terminal device, wherein the measuring state comprises normal measurement and measurement relaxation. Therefore, indicating the measuring state of a terminal device and indicating that the measuring state of the terminal device is normal measurement or measurement relaxation realize the measurement relaxation of a serving cell.