Radio Transceiver Ranging Error Reduction via Time Slot Segmentation

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Solution Overview

Problem

Existing radio network technologies face challenges in accurately determining the location of mobile transceivers due to ranging errors and in efficiently transmitting large volumes of data while maintaining compatibility with radio transmission protocols.

Innovation Solution

A method that assesses distances between transceivers by measuring round trip time of flight of radio signals, adjusts transmitter power based on signal intensity, and uses multiple transmission characteristics to reduce errors, and transmits bulk distance data in transfer time slots to maintain network compatibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If transmitter power is automatically adjusted based on signal intensity thresholds, then signal transmission reliability is improved, but ranging errors are introduced due to automatic gain control changes

Engineering Contradiction:

Improvesignal transmission reliabilityVSAvoidranging accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The system performs preliminary actions by evaluating signal intensity and adjusting transmitter power before ranging measurements are taken. This ensures that the signal is at an optimal level for accurate measurement, preventing the need for automatic gain control changes during the actual ranging process that would introduce errors.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by continuously monitoring signal intensity and adjusting transmitter power accordingly. The feedback loop compares the received signal intensity against thresholds and modifies transmission parameters to maintain optimal signal levels, thereby improving reliability while avoiding ranging errors through proper timing of adjustments.

Inventive Principle:

Principle #23Feedback

2Measurement precision

If large volumes of distance data are transmitted frequently, then location accuracy is improved, but network compatibility is compromised due to protocol constraints

Engineering Contradiction:

Improvelocation accuracyVSAvoidnetwork compatibility

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The system segments the transmission of distance data by collecting multiple measurements and transmitting them in organized batches or groups. This segmentation allows for efficient data management and transmission that adheres to network protocol constraints while still providing accurate location information through aggregated measurements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system employs periodic action by transmitting collected distance data at regular intervals rather than continuously. This periodic transmission approach maintains network compatibility by respecting protocol timing constraints while ensuring that location accuracy is updated frequently enough to be useful for tracking mobile transceivers.

Inventive Principle:

Principle #19Periodic action

3Measurement precision

If multiple ranging transmissions are performed during a ranging interval, then distance measurement accuracy is improved, but data transmission complexity increases

Engineering Contradiction:

Improvedistance measurement accuracyVSAvoiddata transmission complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The system merges multiple ranging transmissions by performing them during a single designated ranging interval rather than as separate operations. This combining approach improves distance measurement accuracy through multiple samples while reducing overall system complexity by consolidating the transmissions into a unified process with coordinated resource allocation.

Inventive Principle:

Principle #5Merging (Combining)

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 reduces ranging errors, improves location accuracy of mobile transceivers, and enables efficient data transmission over radio networks while maintaining compatibility with established protocols.

Implementation Method 1

assessing distances between a first transceiver and a second transceiver by measuring a round trip time of flight of a transmitted radio signal

Methodology Applied

Scientific EffectTime of flight: Time of Flight

Implementation Method 2

evaluating the intensity of a received radio signal

Methodology Applied

Scientific EffectSignal intensity detection: Absorption (EM radiation)

Data Source

PatentUS11665663B2Transmitting data over a radio network

Publication Date: 2023.05.30 ENTOTEM

AI summary

Data is transmitted over a radio network, in which a fixed transceiver transmits distance data to a network data processor and the fixed transceiver is required to wait after a transmission to maintain network compatibility. Bulk distance data is collected for a plurality of mobile transceivers during a ranging time slot. The bulk distance data is transmitted in a transfer time slot 3201, while maintaining network compatibility. Fixed time of flight is shown and transmission power is controlled to avoid automatic gain control at a receiver. Distance values may be averaged from each pair of distanced derived from each available pair of fixed transceivers when ranging a specific mobile transceiver.