Terminal Device SCG Measurement Behavior in Non-Active States

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Solution Overview

Problem

The measurement behavior of terminal devices after a Secondary Cell Group (SCG) enters a dormant, suspended, or deactivated state is indefinite, which hinders energy saving and rapid SCG establishment in New Radio (NR) systems.

Innovation Solution

A measurement method and apparatus that enable a terminal device to receive first indication information from a network device indicating that an SCG has entered a non-active state, and subsequently perform specific measurement behaviors based on configured measurement configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the SCG enters a dormant, suspended, or deactivated state to save energy, then energy consumption is reduced, but measurement behavior becomes indefinite

Engineering Contradiction:
Improveenergy consumptionVSAvoidmeasurement behavior clarity
Core Design Contradiction:
Use of energy by moving objectVSLoss of information

Solution Approach 1:

The patent applies parameter changes by modifying the measurement behavior parameters based on the SCG state. When the SCG is in active state, the terminal performs measurements according to first measurement configuration; when in dormant/suspended/deactivated state, measurements are performed according to second measurement configuration. This dynamic parameter adjustment resolves the contradiction by providing clear measurement behavior instructions for each state while maintaining energy saving benefits.

Inventive Principle:
Principle #35Parameter changes

2Speed

If the SCG enters a non-active state to enable rapid establishment, then establishment speed is improved, but measurement behavior becomes indefinite

Engineering Contradiction:
ImproveSCG establishment speedVSAvoidmeasurement behavior clarity
Core Design Contradiction:
SpeedVSLoss of information

Solution Approach 1:

The patent uses parameter changes to define distinct measurement configurations for different SCG states. The network device configures and indicates to the terminal whether to use first measurement configuration (for active state) or second measurement configuration (for non-active state). This provides clear measurement behavior guidance that enables rapid SCG establishment while eliminating measurement behavior ambiguity.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If the terminal performs continuous measurement in active state, then measurement precision is maintained, but energy consumption increases

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidenergy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by making measurement behavior adaptive to the SCG state. The terminal dynamically adjusts its measurement behavior based on whether the SCG is in active or non-active state, as indicated by the network device. In non-active states, the terminal performs measurements according to second measurement configuration which is optimized for energy saving while maintaining necessary measurement precision, thus resolving the contradiction between continuous measurement and energy consumption.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12302143B2Measurement method, terminal device and non-transitory computer-readable storage medium for a master cell group and a secondary cell group
Publication Date: 2025.05.13 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US12302143B2 patent drawing
  • US12302143B2 patent drawing
  • US12302143B2 patent drawing

AI summary

Provided are a measurement method and apparatus, and a terminal device. The method comprises: a terminal device receiving first instruction information sent by a network device, wherein the first instruction information is used to instruct an SCG to enter a first state, and the first state is different from an active state; and the terminal device executing measurement according to a first measurement behavior after the SCG enters the first state.