Wireless Signal Measurement with Envelope Detection for Power Saving

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Solution Overview

Problem

Existing wireless communication systems face challenges in meeting increased measurement requirements for power saving and reliability, particularly in New Radio (NR) systems, due to the unpredictable periodicity of wake-up signals and the resulting resource overhead and complexity in obtaining measurement results.

Innovation Solution

A wireless communication method involving the use of envelope detection for signal amplitude-based signals, allowing a first communication device to obtain a target measurement result by measuring a first and a second signal, and a second communication device to transmit such signals, thereby ensuring reliable measurement quality with reduced power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional receiver activation is used for measurement, then measurement reliability is improved, but power consumption increases

Engineering Contradiction:

Improvemeasurement reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts the measurement function from the traditional receiver and implements it through envelope detection on amplitude-based signals. This allows measurement operations to be performed without activating the full receiver, thereby reducing power consumption while maintaining measurement reliability through dedicated envelope detection circuits.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs simple envelope detection circuits instead of complex traditional receivers for measurement purposes. These simpler detection mechanisms consume less power and are sufficient for the specific measurement task, effectively using a 'cheaper' detection approach for the measurement function while the full receiver remains dormant.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Use of energy by moving object

If wake-up signal periodicity is increased for power saving, then power consumption decreases, but measurement timeliness deteriorates

Engineering Contradiction:

Improvepower consumptionVSAvoidmeasurement timeliness

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The patent enables the first communication device to perform measurements on amplitude-based signals before traditional wake-up signals are received. By using envelope detection on continuously available amplitude signals, the device can maintain up-to-date measurement information without needing to frequently activate the receiver for wake-up signal detection, thus improving measurement timeliness while saving power.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If complex measurement procedures are used to meet reliability requirements, then measurement reliability is improved, but device complexity increases

Engineering Contradiction:

Improvemeasurement reliabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the essential measurement capability from complex traditional receivers and implements it through dedicated envelope detection circuits. This separation allows the full receiver to remain inactive while simpler detection circuits handle measurement tasks, reducing overall device complexity while maintaining measurement reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces complex receiver activation mechanisms with simpler envelope detection for measurement purposes. This substitution uses a more straightforward detection approach that is sufficient for measuring amplitude-based signals, thereby reducing device complexity while achieving the required measurement reliability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enables efficient and power-saving measurement processes by utilizing signals with simple structures, reducing the need for traditional receiver activation and minimizing resource overhead, thus enhancing measurement reliability and power efficiency.

Implementation Method 1

the first signal is a signal that carries information through signal amplitude, or the first signal is a signal received using envelope detection; and/or the second signal is a signal that carries information through the signal amplitude, or the second signal is a signal received using the envelope detection

Methodology Applied

Scientific EffectEnvelope detection:

Data Source

PatentUS20250330858A1Wireless communication methods and devices

Publication Date: 2025.10.23 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

A wireless communication method includes: obtaining, by a first communication device, a target measurement result by measuring a first signal and a second signal, where the first signal is a signal carrying information through signal amplitude, or the first signal is a signal received using envelope detection, and/or the second signal is a signal carrying information through signal amplitude, or the second signal is a signal received using envelope detection.