Patent · US Active

Method for bidirectional data transfer in narrowband systems

US11265836B2 · kind B2 · utility

1Cited by

12References

18Claims

0Family size

Assignee

Diehl Metering Systems GmbH · DE

Inventors

Hristo Petkov · Nuremberg, DE
Raphael Mzyk · Kammerstein, DE
Thomas Kauppert · Nuremberg, DE
Klaus Gottschalk · Winkelhaid, DE

Key dates

Filing date	Mar 11, 2020
Grant date	Mar 1, 2022
Priority date	—
Expiry date	Apr 25, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04W72/23
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for bidirectional data transmission, preferably in narrowband systems, between a base station and a terminal device includes providing the terminal device and the base station with frequency reference units and transmitting data between the base station and the terminal device over different frequencies. A basic transmit frequency is defined for transmitting data from terminal device to base station, the terminal device defines a terminal device transmit frequency on the terminal device side for transmitting data from terminal device to base station, a frequency offset Δfoffset exists between the basic transmit frequency and the terminal device transmit frequency, the terminal device opens a receive window for data from the base station, and the frequency offset Δfoffset is taken into account for opening the window. Base station determines the terminal device transmit frequency and base station transmits data to terminal device based on the determined terminal device transmit frequency.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.