Wireless Spurious Signal Detection Using Device-Specific Data

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Solution Overview

Problem

Current wireless communication systems face inefficiencies in spurious signal detection due to non-device-specific characterization information, leading to incorrect suppression of weak signals and failure to suppress strong signals, which degrades performance and wastes processing resources.

Innovation Solution

A wireless device obtains device-specific data to determine the frequency and power of spurious signals using a precise and low-complexity procedure, enabling efficient suppression by generating information for each device's unique spurious signal characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If non-device-specific characterization information is used for spurious signal detection, then the detection process is simplified, but the accuracy of spurious signal identification deteriorates

Engineering Contradiction:
Improvedetection process complexityVSAvoidspurious signal identification accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent changes the parameter of characterization information from generic to device-specific. Each wireless device performs self-measurements to obtain its own spurious signal characteristics (frequency, power, phase), which are then stored and used for accurate detection. This parameter change resolves the contradiction by maintaining simple detection processes while improving identification accuracy through device-specific data.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If device-specific data is collected and processed, then the accuracy of spurious signal detection is improved, but the processing resources and time are increased

Engineering Contradiction:
Improvespurious signal detection accuracyVSAvoidprocessing efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent applies preliminary action by having wireless devices perform self-measurements and collect device-specific spurious signal characteristics during manufacturing or initial setup. This data is stored in the device's memory before actual operation. When spurious signal detection is needed during normal operation, the pre-collected device-specific data is directly used, avoiding real-time measurement overhead and maintaining high processing efficiency while ensuring accurate detection.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If device-specific self-measurements are performed, then the reliability of spurious signal suppression is improved, but the energy consumption increases

Engineering Contradiction:
Improvespurious signal suppression reliabilityVSAvoidenergy consumption for measurement
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent performs device-specific self-measurements as a preliminary action during manufacturing, device initialization, or calibration phases rather than continuously during normal operation. The measured device-specific spurious signal characteristics are stored in memory and reused during actual communication operations. This approach ensures reliable spurious signal suppression using accurate device-specific data while minimizing energy consumption by avoiding repeated measurements during normal operation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11750307B2Spurious signal detection
Publication Date: 2023.09.05 QUALCOMM INC
  • US11750307B2 patent drawing
  • US11750307B2 patent drawing
  • US11750307B2 patent drawing

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless device may obtain, in a frequency range, device-specific data for use in determining at least one of a frequency or a power of a spurious signal. The wireless device may generate, based at least in part on the device-specific data, information that indicates the at least one of the frequency or the power of the spurious signal. Numerous other aspects are described.