DRIFT CORRECTION IN A WIRELESS NETWORK

Methods and devices for synchronizing a device clock in a wireless network (e.g. a LPWAN) are disclosed. Example methods comprise identifying a device temperature, identifying a clock drift associated with the identified device temperature and applying a correction to the device clock based on the i...

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Bibliographic Details
Main Authors ADELANTADO FREIXER, Ferran, VILAJOSANA GUILLÉN, Xavier, MARTÍNEZ HUERTA, Borja, TUSET PEIRÓ, Pere
Format Patent
LanguageEnglish
Published 08.08.2019
Subjects
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
SELECTING RESONANT CIRCUITS
TUNING RESONANT CIRCUITS
WIRELESS COMMUNICATIONS NETWORKS
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Summary:Methods and devices for synchronizing a device clock in a wireless network (e.g. a LPWAN) are disclosed. Example methods comprise identifying a device temperature, identifying a clock drift associated with the identified device temperature and applying a correction to the device clock based on the identified drift. For the identified device temperature, the drift is identified by comparing the confidence of the drift value in a pre-calibration curve generated from fixed drift values in a pre-calibration table with the confidence of the drift value in a learning curve generated from variable drift values in a learning table and selecting the drift value from the curve having the higher drift confidence.
Bibliography:Application Number: US201616318111