Abstract: A method improves antenna matching for a node, in particular a sensor apparatus and/or actuator apparatus, of a communications network. The node is capable of radio communication and has a radio module equipped with an antenna and a transmit path and/or receive path for radio signals to be emitted and/or received. The node has a power supply apparatus, which is preferably energy self-sufficient, in particular a battery. The antenna has an impedance and in the receive situation and/or in the transmit situation in the case of adjustable matchings, preferably by use of adjustable matching networks, the signal to noise ratio associated with each matching is estimated, and a matching is selected from the different matchings for the receive mode and/or the transmit mode.

Abstract: 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.

Abstract: A method improves antenna matching for a node, in particular a sensor apparatus and/or actuator apparatus, of a communications network. The node is capable of radio communication and has a radio module equipped with an antenna and a transmit path and/or receive path for radio signals to be emitted and/or received. The node has a power supply apparatus, which is preferably energy self-sufficient, in particular a battery. The antenna has an impedance and in the receive situation and/or in the transmit situation in the case of adjustable matchings, preferably by use of adjustable matching networks, the signal to noise ratio associated with each matching is estimated, and a matching is selected from the different matchings for the receive mode and/or the transmit mode.

Abstract: A method adjusts wireless parameters within a bidirectional wireless network having a multiplicity of wireless nodes and a gateway. Wireless connections are provided between the gateway and the wireless nodes. The wireless network is provided as a first digital twin in the wireless node or the gateway or in a wireless-network external head-end. The received signal strength indicator (RSSI) of each of the wireless connections is determined or estimated, and the path loss of the respective wireless connections is determined or estimated from the associated RSSI. The path loss of each of the wireless connections is assigned to the respective wireless connections of the first digital twin, and wherein, on the basis of the path loss of each of the wireless connections of the first digital twin, at least one wireless parameter is adjusted for a future data transmission for at least one wireless connection of the wireless network.

Abstract: A method for transmitting data or sensor data by radio between a preferably fixed battery-operated node and base station in a communication system with bidirectional radio transmission, includes providing a base station communication module having a first frequency transmitter, and a node communication module having a first frequency transmitter and second frequency transmitter with lower frequency. The node communication module transmits data in the uplink to the base station communication module by splitting a radio telegram into data packets transmitted successively with temporal spacing. The base station communication module transmits data in the downlink to the node communication module by splitting a radio telegram into data packets transmitted successively with temporal spacing.

Abstract: 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.

Abstract: A method transmits data via radio between a node and a base station with bidirectional radio transmission-based operation. The base station has a communication module with a first frequency transmitter. The node has a communication module with a first frequency transmitter and a second frequency transmitter with a frequency lower than the first frequency transmitter. The communication module of the node is intended to transmit data in the uplink to the communication module of the base station by virtue of a radio telegram being split into two data packets transmitted successively with a temporal spacing. The communication module of the base station transmits data in the downlink to the communication module of the node by virtue of a radio telegram being split into two data packets transmitted successively with a temporal spacing. The transmission time and/or the carrier frequency of at least one of the data packets is corrected.

Abstract: 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.

Abstract: A method operates a node in a radio network. The node has a transmitter and/or receiver for transmitting/receiving data packets. Each data packet is divided into a plurality of individual sub-data packets, and each sub-data packet is sent and/or received successively in a temporal transmission interval in the form of a radio burst. A plurality of pauses is provided, wherein the respective pause is provided between two adjacent radio bursts and is in each case longer than 7168 symbols based on a symbol rate of 2 380 371 Sym/s and/or radio bursts are combined into radio burst clusters. The radio bursts within the radio burst clusters are each sent and/or received successively in the temporal transmission interval, and the number of radio bursts in each radio burst cluster is lower than the number of radio bursts respectively predefined in accordance with ETSI TS 103 357 V1.1.1 (2018-06).

Abstract: A method detects the surroundings of a node, in particular in the form of a sensor apparatus and/or actuator apparatus, of a communications network. The node is capable of unidirectional or bidirectional radio communication and has a radio module equipped with an antenna, a transmit path and/or receive path, and a power supply apparatus, which is preferably energy self-sufficient, in particular a battery. The surroundings are detected, preferably at repeated time intervals, on the basis of an estimate of the detuning of the antenna of the radio module.

Abstract: Embodiments provide a method for generating a hopping pattern for transmitting a plurality of sub-data packets in a communication system. The method has a step of deriving a hopping pattern from a binary sequence, wherein an autocorrelation function of the binary sequence has autocorrelation side maximums with a predetermined maximum value. The method further has a step of determining a maximum sub-data packet length for the plurality of sub-data packets in dependence on a total emission duration of the plurality of sub-data packets indicated by the hopping pattern, and a minimum value of a difference sequence of a sorted difference number series derived from the binary sequence.

Abstract: A software defined radio type radio receiver is used in an environment that is self-sufficient in energy. The radio receiver has a receiving device, which receives the data in the form of a data packet or a portion thereof or a data stream at a certain data rate, and provides the data for further data processing. Wherein in an operating mode, the data is diverted at the receiving device and supplied to a microcontroller at a sampling rate which preferably can be defined. The microcontroller decimates the data by selecting a subset from the set of samples, and the microcontroller buffers in a memory and provides for further processing the decimated data.

Abstract: A subscriber in a communication system is configured to transmit data to a base station of the communication system. The subscriber is configured to take a quality criterion of at least one previous transmission between the subscriber and the base station as a basis for transmitting the data in a first frequency range or in a second frequency range being different from each other, and/or in a first time interval or in a second time interval being different from each other. A base station, a method for receiving data and a computer program product are also provided.

Abstract: A method operates a supply system having a measuring unit and a central unit. Information is transferred repeatedly at specific time intervals via a communication network by radio between the central unit and the measuring unit. The measuring unit or the central unit receives the information and then generates a receipt confirmation, which it transmits to the central unit or the measuring unit respectively. The central unit or the measuring unit, after transmitting the information, opens a receive window of a certain time length for receiving the receipt confirmation. As a result of a first trigger event, the time intervals between the repeat transmissions of the information are shortened, and/or an additional receive window for receiving the receipt confirmation is opened, and as a result of a second trigger event, the time intervals between the repeat transmissions are lengthened, and/or no additional receive windows are opened.

Abstract: 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.

Abstract: A method detects the surroundings of a node, in particular in the form of a sensor apparatus and/or actuator apparatus, of a communications network. The node is capable of unidirectional or bidirectional radio communication and has a radio module equipped with an antenna, a transmit path and/or receive path, and a power supply apparatus, which is preferably energy self-sufficient, in particular a battery. The surroundings are detected, preferably at repeated time intervals, on the basis of an estimate of the detuning of the antenna of the radio module.

Abstract: A method improves antenna matching for a node, in particular a sensor apparatus and/or actuator apparatus, of a communications network. The node is capable of radio communication and has a radio module equipped with an antenna and a transmit path and/or receive path for radio signals to be emitted and/or received. The node has a power supply apparatus, which is preferably energy self-sufficient, in particular a battery. The antenna has an impedance and in the receive situation and/or in the transmit situation in the case of adjustable matchings, preferably by use of adjustable matching networks, the signal to noise ratio associated with each matching is estimated, and a matching is selected from the different matchings for the receive mode and/or the transmit mode.

Abstract: A method transmits data via radio between a node and a base station with bidirectional radio transmission-based operation. The base station has a communication module with a first frequency transmitter. The node has a communication module with a first frequency transmitter and a second frequency transmitter with a frequency lower than the first frequency transmitter. The communication module of the node is intended to transmit data in the uplink to the communication module of the base station by virtue of a radio telegram being split into two data packets transmitted successively with a temporal spacing. The communication module of the base station transmits data in the downlink to the communication module of the node by virtue of a radio telegram being split into two data packets transmitted successively with a temporal spacing. The transmission time and/or the carrier frequency of at least one of the data packets is corrected.

Abstract: A method for transmitting data or sensor data by radio between a preferably fixed battery-operated node and base station in a communication system with bidirectional radio transmission, includes providing a base station communication module having a first frequency transmitter, and a node communication module having a first frequency transmitter and second frequency transmitter with lower frequency. The node communication module transmits data in the uplink to the base station communication module by splitting a radio telegram into data packets transmitted successively with temporal spacing. The base station communication module transmits data in the downlink to the node communication module by splitting a radio telegram into data packets transmitted successively with temporal spacing.

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 ?foffset 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 ?foffset 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.