Abstract

Method for operating a node (1), preferably end node, in a radio network (100) comprising at least one node (1) and at least one base station (10), wherein the node (1) comprises a transmitter and/or receiver, preferably a transceiver (5), for transmitting radio telegrams in the form of data packets (DP) on the uplink and/or for receiving them on the downlink, a battery (6) and an energy buffer (7), wherein each data packet (DP) on the uplink and/or downlink is divided into a plurality of individual sub-data packets, these preferably being sub-data packets of different frames of the data packet (DP), in particular sub-data packets (C1 to C1+m or E1 to E1+n) of a core frame (CF) and/or extension frame (EF) of the data packet (DP), and each sub-data packet is sent and/or received successively in a temporal transmission interval (T_RB(s)) in the form of a radio burst (FB), preferably in the narrowband or ultra narrowband, preferably on different frequencies, wherein provision is furthermore made for at least two and preferably a plurality of pauses (?T_add) to be provided, wherein the respective pause (?T_add) is provided between two adjacent radio bursts (FB) and is in each case longer than 7168 symbols based on a symbol rate of 2 380 371 Sym/s and/or radio bursts (FB) are combined into radio burst clusters (CL1, CL+x), wherein the radio bursts (FB) within the radio burst clusters (CL1, CL+x) are each sent and/or received successively in the temporal transmission interval (T_RB(s)), and wherein the number of radio bursts (FB) in the respective radio burst cluster (CL1, CL+x) is lower than the number of radio bursts (FB) respectively predefined in accordance with ETSI TS 103 357 V1.1.1 (2018-06) and/or the temporal transmission interval (T_RB(s)) is greater than 655 symbols based on a symbol rate of 2 380 371 Sym/s.

IPC Classes  ?

• H04W 52/02 - Power saving arrangements

Abstract

The invention relates to a method for operating a radio transmission system with a radio transmitter (S) and at least one radio receiver (E), wherein the radio transmitter (S) comprises at least one transmitter timer (ZS), in particular a clock generator, and transmits a packet and/or a subpacket and/or a plurality of packets in succession for the transmission of data, wherein the carrier frequency and the transmission times of the data and/or the carrier frequency and the sampling rate of the data and/or the transmission times of the data and the sampling rate of the data depend on the transmitter timer (ZS), in particular on a clock generator, and the radio receiver (E) comprises at least one receiver timer (ZE), in particular a clock generator, with time-measuring means to define transmission times and/or to define carrier frequencies and/or to define sampling rates, wherein the radio receiver (E) estimates an error, in particular a carrier frequency error and/or a sampling rate error and/or an error in the transmission time, on the basis of the received data and determines a time error therefrom, wherein a temporal correction factor for the compensation is defined on the basis of the time error. The invention furthermore relates to an arrangement of a radio transmission system which is operable according to the method.

IPC Classes  ?

• H04B 17/309 - Measuring or estimating channel quality parameters
• H04B 7/24 - Radio transmission systems, i.e. using radiation field for communication between two or more posts

Abstract

During the battery operation of a smart metering meter (11) which is equipped with a consumption sensor (14) and a transmit clock generator (17) for a radio module (19) for the transmission of consumption data packets (20), in the event of a conspicuously decreased residual capacity of the battery (21), it is determined whether the data packets (20) can be transmitted as previously with said residual capacity over the residual time period also until the scheduled battery exchange at the end of the specified operating time period. If not, the transmit power, for example, of the data packets (20) is reduced and/or their transmit clock (27) is extended over the residual period. This determination, along with the control specification, are preferably performed in the concentrator (13) and are transmitted by means of bidirectionally operating radio modules (19) to the meter (11) so that the computer capacities required for this purpose do not have to be retained in each individual meter (11) of the supply area.

IPC Classes  ?

• H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• H04W 52/02 - Power saving arrangements

Abstract

The invention relates to a radio receiver (10) of the SDR type for use in an environment which is self-sufficient in power, preferably self-sufficient in power in the long term, the radio receiver (10) comprising a receiver (1) by which data (2) in the form of at least one data packet or a part thereof or of a data stream having a specific data rate are received and provided for further data processing. In an operating mode A the data (2) are diverted at the receiver (1) and delivered to a microcontroller (3) at a preferably definable sampling rate, the microcontroller (3) decimates the data by selecting some data from the sampled amount, and the microcontroller (3) buffers the decimated data in a memory (4, 18) and provides them for further processing.

IPC Classes  ?

• H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission
• H04B 1/16 - Circuits

Abstract

The invention relates to a method for bidirectional data transmission, preferably taking place in a narrowband system, between a base station (101) and a terminal device (102), preferably a plurality of terminal devices (102), wherein the terminal device (102) and the base station (101) each have their own frequency reference unit and the data are transmitted between the base station (101) and the terminal device (102) over different frequencies, having the following method steps: a basic transmit frequency (201) is defined for transmitting data from the terminal device (102) to the base station (101); the terminal device (102) defines a terminal device transmit frequency (202) on the terminal device side for transmitting data from the terminal device (102) to the base station (101), wherein a frequency offset .DELTA.foffset exists between the basic transmit frequency (201) and the terminal device transmit frequency (202); the terminal device (102) opens a receive window to receive data originating from the base station (101), wherein the frequency offset .DELTA.foffset . is taken into account for the opening of the receive window; the base station (101) determines the terminal device transmit frequency (202); the base station (101) transmits data to the terminal device (102) on the basis of the determined terminal device transmit frequency (202).

IPC Classes  ?

• H04W 56/00 - Synchronisation arrangements

Abstract

Method for distributing data, in particular update program data, in a communication system (1), having a group of metering units, in particular consumption meters (4), which are arranged in each case to measure the consumption of a delivered supply medium, and a data collector (2), in particular for acquiring and/or forwarding consumption data' derived from consumption, wherein each metering unit a communication module (5) and a frequency reference device (6), and also preferably at least one processor (10) to operate the metering unit on the basis of data, in particular program data, wherein the metering units and the data collector (2) are arranged in a communication network, wherein the data, in particular update program data, are transmitted by the data collector (2) via the communication system (1) within a session, in particular an update session, common to the group of metering units, a synchronization sequence (13) common to the metering units is transmitted within the common session, in particular the update session, and the synchronization sequence (13) is dimensioned in such a way that the frequency reference device (6) of each metering unit in the group of metering units is synchronized with the transmitted synchronization sequence (13) within a session, in particular an update session.

IPC Classes  ?

• H04W 52/02 - Power saving arrangements

Abstract

The invention relates to a method for improving the transmission quality between a data collector (3) and a plurality of measuring units, in particular consumption measuring devices (2), in a communication system (1) with preferably bidirectional radio transmission with a first communication module (10), wherein the first communication module (10) is associated with the data collector (3), and two or more second communication modules (17), wherein each second communication module (17) is associated with one measuring unit, wherein the second communication module (17) is provided for sending data to the first communication module (10) by means of radio signals, preferably in the form of at least one radio telegram (4) preferably comprising a plurality of data packet(s), wherein the first communication module (10) is provided for receiving the data from the second communication module (17), wherein the first communication module (10) comprises a first frequency reference device (11), wherein the second communication module (17) comprises a second frequency reference device (18), wherein the radio signals transferred from the second communication module (17) to the first communication module (10) in the data transmission are dependent on the second frequency reference device (18), wherein at least one parameter of the radio signal sent out by the second communication module (17) and received by the first communication module (10), from the parameter group comprising bandwidth, data rate, data rate offset, temperature from the data packet, ?frequency, modulation index, and/or reception time by the first communication module (10), is measured, an error of the second frequency reference device (18) is estimated on the basis of the parameter measurement values or values derived therefrom, and the frequency of the first frequency reference device (11) and/or at least one parameter in the first communication module (10) from the group comprising data rate, data rate offset, modulation index and frequency shift is adjusted in such a way that the error of the second frequency reference device (18) or the parameter error dependent thereon is reduced or eliminated.

IPC Classes  ?

• H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• H04L 27/00 - Modulated-carrier systems
• H04L 27/16 - Frequency regulation arrangements

Abstract

Domestic data in the form of data telegrams (14) are transmitted from a data source (10) to a storage unit (20) via a freely accessible and correspondingly occupied transmission channel (17) in an unsynchronized manner in time slots. Due to the resulting interference acting on the long data telegrams (14), the data telegrams must be transmitted multiple times (n) until a data telegram (14m) is received without interference. A comparator (21) is used to determine a packet error rate (PER) from the ratio of the number (m) of data telegrams received without interference over a known period of time to the number (n) of data telegrams (14m/14n) actually transmitted during the same time. By varying the transmission repetitions (n => n') per unit of time, a specified packet error rate (PER) can be adaptively maintained despite varying transmission conditions.

IPC Classes  ?

• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 1/08 - Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
• H04L 1/20 - Arrangements for detecting or preventing errors in the information received using signal-quality detector

Abstract

The invention relates to a method for selecting frequency channels (K1 - Kn) in a communication system using a frequency hopping method, in particular for detecting consumption of consumption measuring devices in which data is transferred between a transmitter and a receiver by means of radio transmission. The data is transferred in the form of data packets (4) comprising several bits in a frequency/time block, the transfer of the data packets (4) or parts of the data packets (4) taking place on several different selected frequency channels (K1 - Kn), the respective data packet (4) or a parts thereof being coded prior to sending from the transmitter and is decoded after receiving it from the received, the transmission quality of the frequency channels (K1 - Kn) is evaluated and using the evaluation of the transmission quality of the frequency channels (K1 - Kn), a decision is taken for the selection of the frequency channel (K1 - Kn) or frequency channels (K1 - Kn) which is/are used for transferring the data. A probability ratio (WQ) for the probability of a successful transfer is determined prior to decoding by the receiver, the probability ratio (WQ) is worked out as a metric for determining the disturbance state of the respective data packet (4) or one part thereof, and the evaluation of the transmission quality of the respective frequency channels (K1-Kn) takes place using the disturbance state of the data packet (4) or one part thereof.

IPC Classes  ?

• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04B 1/7143 - Arrangements for generation of hop patterns
• H04B 1/713 - Spread spectrum techniques using frequency hopping
• H04L 1/20 - Arrangements for detecting or preventing errors in the information received using signal-quality detector
• H04B 1/715 - Interference-related aspects