Terminal Measurement Timing Based on DRX Cycles and Mobility

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Solution Overview

Problem

Frequent measurements by terminals for Radio Link Monitoring (RLM), beam failure detection, and Radio Resource Management (RRM) lead to significant power consumption, affecting battery life and overall terminal longevity.

Innovation Solution

A measurement method that determines indication periods based on Discontinuous Reception (DRX) cycles, movement conditions, and position conditions to optimize power consumption, including modules to adjust indication periods according to DRX cycles, signal quality variations, and network configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal performs measurement frequently to ensure communication quality and reliability, then measurement precision and reliability are improved, but power consumption increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by making the measurement indication period adjustable based on terminal movement state. When the terminal is stationary, a longer indication period is used to save power. When the terminal moves, the indication period is shortened to maintain measurement accuracy and communication reliability. This dynamic adjustment resolves the contradiction between power consumption and measurement reliability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the measurement indication period parameter according to different movement conditions. By modifying this key parameter based on whether the terminal is stationary or moving, the system achieves optimal balance between power efficiency and measurement quality, directly addressing the contradiction between power consumption and communication reliability.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If the terminal performs measurement frequently to maintain communication quality, then measurement precision is improved, but battery life decreases

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidbattery life
Core Design Contradiction:
Measurement precisionVSDuration of action of moving object

Solution Approach 1:

The measurement indication period is dynamically adjusted based on terminal movement. When stationary, the longer period extends battery life while maintaining sufficient measurement precision. When moving, the period shortens to ensure measurement accuracy is not compromised. This dynamic approach resolves the contradiction between measurement precision and battery life.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

By changing the measurement indication period parameter according to movement state, the system optimizes the balance between measurement precision and battery consumption, directly resolving the contradiction between these two factors.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the terminal performs measurement frequently to detect beam failure and maintain link quality, then reliability is improved, but power consumption increases

Engineering Contradiction:
Improvelink qualityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by adjusting the measurement indication period based on terminal movement state. When stationary, measurements are performed less frequently to save power. When moving, measurements are performed more frequently to maintain link quality and detect beam failures promptly. This resolves the contradiction between link quality reliability and power consumption.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12470963B2Measurement method and terminal
Publication Date: 2025.11.11 VIVO MOBILE COMM CO LTD
  • US12470963B2 patent drawing
  • US12470963B2 patent drawing
  • US12470963B2 patent drawing

AI summary

Measurement methods and a terminal are provided. An exemplary measurement method includes determining an indication period of measurement according to a Discontinuous Reception (DRX) cycle. The measurement method further includes determining the indication period according to a length relationship between the DRX cycle and a threshold of the DRX cycle, wherein different length relationships correspond to different indication periods. The measurement method also includes using N times of the DRX cycle as the indication period. N is configured by a network side and N is a number greater than zero. The measurement method additionally includes determining the indication period as a fixed value if the DRX cycle is less than or equal to a specified value, wherein the fixed value is predefined or configured by the network side. The measurement method also includes determining an evaluation period according to the indication period.