RF Calibration Trigger Signaling for UWB Beam Weight Adjustment

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Solution Overview

Problem

Existing wireless communication systems face challenges with RF circuitry calibration in ultra-wideband operations due to insufficient frequency and temperature variations, leading to communication errors, increased latency, and wasted signaling resources.

Innovation Solution

A wireless communication device transmits an insufficient calibration message when certain conditions are met, allowing another device to provide calibration assistance signals to adjust beam weights for improved RF circuitry performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If RF circuitry calibration is performed with limited frequency and temperature variations, then calibration process is simplified and faster, but calibration accuracy deteriorates leading to communication errors

Engineering Contradiction:

Improvecalibration speedVSAvoidcommunication reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The calibration process is made dynamic by detecting trigger conditions (frequency/temperature thresholds) and transitioning between calibrated and uncalibrated states. The system dynamically adjusts calibration based on real-time environmental conditions rather than using static pre-calibration, resolving the contradiction between fast simplified calibration and accurate calibration across varying conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes physical parameters (frequency, temperature) and detects when these changes trigger recalibration needs. By monitoring parameter changes and responding with calibration assistance signals, the system maintains communication reliability without requiring continuous full calibration, thus balancing calibration speed with communication reliability.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If calibration is performed frequently to maintain accuracy across frequency and temperature variations, then communication reliability improves, but signaling resource consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidsignaling resource consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

Instead of continuous calibration, the system uses periodic calibration triggered by specific conditions (frequency/temperature thresholds). Calibration assistance signals are exchanged only when trigger conditions are met, creating a periodic rather than continuous calibration process that maintains reliability while reducing signaling resource consumption.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system implements feedback mechanisms where devices monitor their own calibration status and environmental conditions, then request calibration assistance only when needed. This feedback-driven approach ensures communication reliability is maintained through timely calibration while avoiding unnecessary signaling resource consumption during stable conditions.

Inventive Principle:

Principle #23Feedback

3Manufacturing precision

If calibration assistance signals are transmitted continuously to ensure proper calibration, then RF circuitry performance is optimized, but bandwidth consumption increases

Engineering Contradiction:

ImproveRF circuitry calibration accuracyVSAvoidbandwidth consumption

Core Design Contradiction:

Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The system applies partial calibration action only when trigger conditions indicate insufficient calibration, rather than continuous full calibration. Calibration assistance signals are transmitted selectively based on detected conditions, providing just enough calibration action needed to maintain RF circuitry accuracy while minimizing bandwidth consumption.

Inventive Principle:

Principle #16Partial or excessive action

4Measurement precision

If the system monitors trigger conditions continuously to detect insufficient calibration, then calibration timing accuracy improves, but processing complexity increases

Engineering Contradiction:

Improvecalibration detection accuracyVSAvoidmonitoring system complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs self-monitoring of its own calibration status using built-in sensors and processors to detect frequency and temperature trigger conditions. This self-service approach enables accurate calibration detection without requiring external monitoring infrastructure, maintaining measurement precision while managing device complexity through integrated rather than separate monitoring functions.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12562821B2Methods for a device to indicate insufficient calibration

Publication Date: 2026.02.24 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may transmit an insufficient calibration message based at least in part on a trigger condition that indicates that a calibration of the wireless communication device is insufficient. The wireless communication device may receive a set of signals associated with calibration assistance in response to the insufficient calibration message. Numerous other aspects are described.