Radio Link Measurement Cycle Relaxation for Low-Power Terminals

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Solution Overview

Problem

Wireless communication systems face challenges in balancing accurate radio resource management measurements with low power consumption, particularly in terminal devices that need to monitor serving and neighboring cells, leading to increased power and resource consumption.

Innovation Solution

Implementing a measurement cycle relaxation mechanism through radio resource control signaling, allowing terminal devices to perform radio resource management measurements with extended cycles based on fluctuation levels and measurement results, and adjusting the number of neighboring cells to be measured to reduce power consumption while maintaining accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If terminal devices perform frequent radio resource management measurements to ensure accurate measurement results, then measurement accuracy is improved, but power consumption increases

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

Solution Approach 1:

The patent implements dynamic measurement cycle adjustment where the base station configures different measurement cycles for different terminal devices based on their service requirements, mobility states, and channel conditions. This allows the system to adapt measurement frequency dynamically, performing frequent measurements only when necessary for accuracy while reducing measurements when conditions permit, thereby resolving the contradiction between measurement accuracy and power consumption.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the measurement cycle parameter from a fixed value to a configurable range of values. The base station can adjust the measurement cycle parameter based on terminal device status, service type, and network conditions, allowing the system to optimize the balance between measurement accuracy and power consumption by selecting appropriate parameter values for different scenarios.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If terminal devices monitor multiple neighboring cells to ensure accurate handover decisions, then handover accuracy is improved, but resource consumption increases

Engineering Contradiction:
Improvehandover accuracyVSAvoidresource consumption
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent applies local quality by configuring terminal devices to monitor different numbers of neighboring cells based on their specific locations, mobility states, and service requirements. Instead of uniformly requiring all devices to monitor the same number of cells, the system tailors the measurement burden to local conditions, ensuring adequate handover accuracy for each device while minimizing overall resource consumption.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements partial action by configuring terminal devices to monitor only the necessary number of neighboring cells required for reliable handover decisions. The base station evaluates channel conditions, mobility patterns, and service requirements to determine the optimal number of cells to monitor, avoiding excessive measurement of cells that would not contribute meaningfully to handover accuracy.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If the base station requires frequent measurement reporting to maintain service quality, then service quality assurance is improved, but terminal device power consumption increases

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

Solution Approach 1:

The patent implements feedback mechanisms where terminal devices report measurement results to the base station, and the base station uses this feedback to adjust measurement cycle configurations. The base station monitors service quality through these feedback reports and dynamically adjusts measurement requirements to maintain service quality while minimizing terminal device power consumption by reducing measurement frequency when service quality is already adequate.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12538197B2Electronic device, method and storage medium for radio link measurement
Publication Date: 2026.01.27 SONY GROUP CORP
  • US12538197B2 patent drawing
  • US12538197B2 patent drawing
  • US12538197B2 patent drawing

AI summary

The disclosure relates to electronic devices, methods, and storage media for radio link measurements. Various embodiments are described with respect to radio link measurements. In one embodiment, an electronic device for a base station providing a serving cell for a plurality of terminal devices is provided, the electronic device including a processing circuit configured to: instruct at least one of the plurality of terminal devices to perform radio resource management measurements with a first cycle; and configure a measurement cycle relaxation mechanism for the at least one terminal device through a radio resource control signaling. In a case that the measurement cycle relaxation mechanism is enabled, the at least one terminal device performs radio resource management measurements with a measurement cycle greater than the first cycle.