Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Diehl Metering Gmbh

Friedrich-alexander-universitaet Erlangen-nuernberg

Friedrich-Alexander-Universitat Erlangen-Nürnberg

Dominik Soller

Josef Bernhard

Gerd Kilian

Johannes Wechsler

Jakob Kneissl

Thomas Kauppert

Marco Breiling

Michael Schlicht

Hristo Petkov

Stefan Ereth

Jakob KNEIßL

Klaus Gottschalk

Frank Obernosterer

Raphael Mzyk

Raimund Meyer

Jakob Kneißl

Frank Nachtrab

Jörg Robert

Wolfgang Koch

Joerg Robert

Rafael Psiuk

Robert Koch

Markus Siebenhaar

Karol Bieg

Alexej Jarresch

Günter Rohmer

The method includes a step of generating a magnetic signal with an electromagnetic functional unit, wherein the electromagnetic functional unit is an actuator of a loudspeaker of the device or wherein the electromagnetic functional unit is an electromagnetic resonant circuit connected to the device, wherein the magnetic signal carries the data to be transferred from the device to the other device: Furthermore, the method includes a step of detecting the magnetic signal with an electromagnetic resonant circuit of the other device in order to obtain the data to be transferred from the device to the other device, wherein the magnetic signal is FSK-modulated, wherein a resonance frequency of the electromagnetic resonant circuit of the other device and a carrier frequency of the FSK-modulated magnetic signal are tuned with respect to each other.

Efficient communication to configure sensor nodes

What is describes is a participant of a communication system, the participant being configured to transmit data using a first radio network and a second radio network in a frequency band, the participant being configured to transmit data in the first radio network according to a first time and/or frequency hopping pattern in a first frequency range of the frequency band, the participant being configured to transmit data in the second radio network according to a second time and/or frequency hopping pattern in a second frequency range of the frequency band, wherein the first time and/or frequency hopping pattern and the second time and/or frequency hopping pattern are different, wherein the first frequency range and the second frequency range overlap at least partially.

System combination of an asynchronous and a synchronous radio system

The innovation relates to technologies by which the signal characteristics and, hence, environmental conditions of a transmitter can be concealed. In one aspect, a data transmitter comprises a transmitter and a changer, wherein the transmitter is configured to transmit a signal, wherein at least one signal parameter of the signal depends on at least one environmental parameter in an environment of the data transmitter, wherein the changer is configured to change the at least one signal parameter of the signal or a parameter on which the at least one signal parameter of the signal depends, in order to conceal the at least one environmental parameter.

Concealment of environmental influences on the transmitting parameters

Embodiments of the present invention provide a participant of a communication system, wherein the communication system communicates wirelessly in a frequency used by a plurality of communication systems, wherein the participant is configured to transmit data uncoordinatedly with respect to other participants and/or a base station of the communication system, wherein the participant is configured to receive a synchronization data packet of a point-to-multipoint data transfer of the base station of the communication system, wherein the synchronization data packet is transferred in a frequency range of the frequency band of the communication system that is specified or known to the participant, wherein the participant is configured to receive, on the basis of the synchronization data packet, a payload data packet of the point-to-multipoint data transfer that is referenced in time and/or frequency to the synchronization data packet.

Method for coordinating participants in sensor networks

Embodiments provide a method for transmitting data between a user terminal and another apparatus. The method has a step of generating a signal for driving an electromagnetic functional unit, the electromagnetic functional unit being an actuator of a loudspeaker of the user terminal or the electromagnetic functional unit being an electromagnetic oscillating circuit connected to the user terminal. Additionally, the method has a step of driving the electromagnetic functional unit by the generated signal to produce, by the electromagnetic functional unit, a magnetic signal which carries first data to be transmitted from the user terminal to the other apparatus. Additionally, the method has a step of detecting another signal output by the other apparatus, the other signal carrying second data to be transmitted from the other apparatus to the user terminal. Thus, the magnetic signal and the other signal differ in the physical signal type.

Bidirectional configuration of sensor nodes with mobile phone with no extension

Embodiments of the present invention provide a participant of a communication system, wherein the communication system communicates wirelessly in a frequency used by a plurality of communication systems, wherein the participant is configured to transmit data uncoordinatedly with respect to other participants and/or a base station of the communication system, wherein the participant is configured to receive, temporally synchronized to a transmitted uplink data transfer to the base station of the communication system, a downlink data transfer from the base station, wherein the downlink data transfer includes signaling information, wherein the participant is configured to receive a point-to-multipoint data transfer from the base station on the basis of the signaling information.

Signaling of a multicast message in non-coordinated networks

Embodiments provide a terminal point of a communication system, wherein a control signal is emitted in the communication system for coordinating the participants of the communication system, wherein the control signal is transferred distributed in correspondence with a frequency hop-based occupancy of resources of the frequency band, indicated by a control signal hopping pattern, wherein the terminal point has a receiver, wherein a receive bandwidth of the receiver is smaller at least by the factor 3 than a bandwidth of the frequency hop-based occupancy of resources of the frequency band, indicated by the control signal hopping pattern, wherein the terminal point is configured to receive a reference signal, the reference signal having information on the control signal, wherein the terminal point is configured to receive the control signal based on the information on the control signal.

Synchronization beacon

Embodiments provide a base station of an uncoordinated wireless communication system, wherein the communication system is configured to communicate in a radio band used by a plurality of communication systems, wherein the base station is configured to receive an uplink transmission from an end point of the wireless communication system, wherein the base station is configured to transmit, in response to the reception of the uplink transmission, a downlink transmission to the end point in a downlink transmission window, wherein the downlink transmission window is synchronized in time to the uplink transmission, wherein the base station is configured, in case of an expected collision of the downlink transmission with another transmission, to reposition the downlink transmission in time and/or frequency within the downlink transmission window, in order to avoid a collision of the downlink transmission with the other transmission.

Bidirectional scheduling in low-power wide-area networks

In embodiments, instead of a uniform (global) hopping pattern that is used equally by all data transmitters and data receivers of a communication system, data transmitters and the data receiver use an individual hopping pattern for the communication. This individual hopping pattern may depend on an operation and is therefore only used by the data transmitter and the data receiver themselves or by a small group of data transmitters and/or data receivers, which may significantly increase the interference immunity.

Specific hopping patterns for telegram splitting

A transmitter is configured to communicate with a multiplicity of receivers, and is configured to transmit first data, the first data including a non-unique addressing information addressing a subset of the multiplicity of receivers, the subset including at least two receivers, the transmitter further being configured to transmit second data, the second data including a further addressing information or transmitted according to a further addressing information, the addressing information addressing one receiver (or one group of receivers) of the subset of the multiplicity of receivers.

Efficient and dynamic addressing methods to a plurality of receivers

A data receiver receives at least one signal from a data transmitter and determines therefrom at least one environment parameter of the data transmitter or of an environment of the data transmitter. The data receiver is configured to identify an operational state of the data transmitter or of a component of the data transmitter by comparing the at least one environment parameter so received or an environment parameter profile determined on the basis of the at least one environment parameter, with an environment parameter reference profile which describes an expected environment parameter or an expected environment parameter profile in the environment of the data transmitter.

Data receiver and method of identifying an operational state of a data transmitter by monitoring environment parameters

A data transmitter for transmitting data to a data receiver is provided, wherein individual communication information is known to the data transmitter and the data receiver, the data transmitter being configured to generate an individual synchronization sequence while using the individual communication information.

Authenticated confirmation and activation message

The invention refers to a transmitter for emitting at least one signal towards a receiver. A signal generator generates the signal such that the signal includes data content. The data content is modified using an identifier assigned to the transmitter or assigned to the receiver. The invention also refers to a receiver and corresponding methods.

Transmitter for emitting signals and receiver for receiving signals

A transmitter is configured to transmit signals each having a pilot sequence including a plurality of pilot sequence symbols, wherein the transmitter includes a signal generator, wherein the signal generator is configured to provide the pilot sequence starting from a base sequence which includes a plurality of base sequence symbols, wherein the signal generator provides the pilot sequence symbols starting from the base sequence symbol successively repeated R&#x2212;1 times, and wherein R is a natural number greater than or equal to two, wherein the base sequence is configured such that a correlation of the pilot sequence with a transmission signal formed from the pilot sequence has a main maximum which is as narrow as possible and/or secondary maximums which are as small as possible.

Growing community of inventors

Schwaig, Germany

Dominik Soller