Patents by Inventor Alfons Dussmann
Alfons Dussmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10075252Abstract: Telecommunication systems using multiple Nyquist zone operations are provided. In one aspect, a telecommunication system can include a first section and a second section. The first section can receive signals from at least one transmitting base station or transmitting terminal device. The received signals have frequencies in multiple frequency bands. The first section can also sample the received signals such that the received signals are aliased. The first section can also combine the aliased signals from the frequency bands into a combined frequency band in a common Nyquist zone. The second section can extract signals from the combined frequency band. The extracted signals are to be transmitted at frequencies in a frequency band from a Nyquist zone that is different than the common Nyquist zone. The second section can also transmit the extracted signals to at least one receiving base station or receiving terminal device. Other embodiments are disclosed.Type: GrantFiled: May 27, 2017Date of Patent: September 11, 2018Assignee: CommScope Technologies LLCInventors: Oliver Braz, Markus Mederle, Alfons Dussmann, Van E. Hanson, Nelson Christian Schmidt, Jr.
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Publication number: 20180254821Abstract: Repeater systems and methods are disclosed. In one embodiment, a repeater system located within a coverage area comprises: a host configured to combine multiple downlink signals from multiple communication sources located outside the coverage area into a first combined downlink signal; at least one remote coupled to the host and configured to transmit the first combined downlink signal as a second downlink RF communication signal to terminals within the coverage area. The at least one remote is configured to produce a combined uplink signal from multiple uplink signals received through multiple communication links from the terminals, and configured to forward the combined uplink signal to the host. The host produces multiple signals from the combined uplink signal for transmission to the multiple communication sources, wherein a first of the plurality of terminals communicates with a different one of the multiple communication sources than a second of the plurality of terminals.Type: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Applicant: Andrew Wireless Systems GmbHInventors: Alfons Dussmann, Thomas Kummetz, Stefan Eisenwinter
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Patent number: 10056998Abstract: A switching control module can optimize time division duplexing operations of a distributed antenna system (“DAS”). The switching control module can include a measurement receiver and a processor. The measurement receiver can measure signal powers of downlink signals in a downlink path of the DAS. The processor can determine start times for downlink sub-frames transmitted via the downlink path based on downlink signal powers measured by the measurement receiver exceeding a threshold signal power. The processor can identify a clock setting that controls a timing of switching signals used for switching the DAS between an uplink mode and a downlink mode. The processor can statistically determine a switching time adjustment for the clock setting based on switching time differentials between the clock setting and the start times. The processor can update the clock setting based on the switching time adjustment.Type: GrantFiled: January 12, 2016Date of Patent: August 21, 2018Assignee: Andrew Wireless Systems GmbHInventors: Daniel Schwab, Thomas Kummetz, Alfons Dussmann
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Publication number: 20180206141Abstract: Uplink leveling systems and methods for a distribution antenna are provided. An uplink leveling system includes at least one communication path between a base station point of interface and a remote antenna unit. A broadband measurement detector is communicatively coupled to measure signal power in the at least one communication path at the base station point of interface. A signal measurement receiver is communicatively coupled to measure signal power in the at least one communication path. A test signal generator is configured to generate a test signal in the at least one communication path in an uplink. At least one controller is configured to level the communication path in the uplink direction based at least in part on measurements by the broadband measurement detector and the signal measurement receiver in response to the generated test signal by the test signal generator.Type: ApplicationFiled: January 17, 2018Publication date: July 19, 2018Applicant: Andrew Wireless Systems GmbHInventors: Alfred Lupper, Johannes Kroupa, Alfons Dussmann, Bogdan Mazilu
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Patent number: 10027402Abstract: A repeater system includes a first master unit and a second master unit located on the movable object, such as a train. The master units are each connected to an antenna for receiving a downlink RF signal from at least one base station outside of the movable object and for transmitting an uplink RF signal towards the base station. Remote units are associated with different coverage areas within the movable object and are connected to the master units unit via a transport medium. The remote units are each connected to an antenna system for transmitting the downlink RF signal into the associated coverage area of the movable object and for receiving the uplink RF signal from the coverage area. A control unit can control first gain for the connection with the first master unit and a second gain for the connection with the second master unit.Type: GrantFiled: October 15, 2015Date of Patent: July 17, 2018Assignee: Andrew Wireless Systems GmbHInventors: Keld Knut Lange, Alfons Dussmann, Daniel Schwab
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Publication number: 20180183537Abstract: A switching control module can optimize time division duplexing operations of a distributed antenna system (“DAS”). The switching control module can include a measurement receiver and a processor. The measurement receiver can measure signal powers of downlink signals in a downlink path of the DAS. The processor can determine start times for downlink sub-frames transmitted via the downlink path based on downlink signal powers measured by the measurement receiver exceeding a threshold signal power. The processor can identify a clock setting that controls a timing of switching signals used for switching the DAS between an uplink mode and a downlink mode. The processor can statistically determine a switching time adjustment for the clock setting based on switching time differentials between the clock setting and the start times. The processor can update the clock setting based on the switching time adjustment.Type: ApplicationFiled: February 12, 2018Publication date: June 28, 2018Applicant: Andrew Wireless Systems GmbHInventors: Daniel Schwab, Thomas Kummetz, Alfons Dussmann
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Patent number: 10009090Abstract: A repeater system including bi-directional amplifier circuitry that is configured for repeating signals between at least one device and a first signal source. Receiver circuitry is coupled with the amplifier circuitry provides at least one signal associated with at least one of a device or the first signal source or a second signal source. Controller circuitry is configured for monitoring a parameter of a provided signal that is reflective of a property of a signal source or a device. The monitored parameter is used to make a determination of whether repeated signals associated with the first signal source will desensitize the operation of the second signal source. The controller circuitry is also operable for adjusting the power level of the signals that are repeated by the bi-directional amplifier circuitry based on the determination that repeated signals will desensitize the operation of the second signal source.Type: GrantFiled: January 23, 2017Date of Patent: June 26, 2018Assignee: Andrew Wireless Systems GmbHInventor: Alfons Dussmann
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Publication number: 20180176880Abstract: A communication system includes a receive antenna for receiving communication signals, processing circuitry for processing the received communication signals and repeating the signals for further transmission and at least one transmit antenna for transmitting the repeated signals. The processing circuitry utilizes configurable settings for controlling the operation of the communication system and the configurable settings are variable for varying the operation of the system. The processing circuitry is further operable for receiving inputs regarding current operating conditions of the communication system and for selectively adapting the configurable settings of the system based upon the operating condition inputs.Type: ApplicationFiled: December 19, 2017Publication date: June 21, 2018Inventors: Thomas Kummetz, Van E. Hanson, Alfons Dussmann
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Publication number: 20180160380Abstract: Aspects and features are directed to an uplink integrity detection sub-system. In one aspect, a distributed antenna system is provided that includes at least one master unit; a plurality of remote antenna units each in communication with the at least one master unit; and a system controller configured to: determine a noise figure for an uplink path from at least one of the plurality of remote antenna units; and modify a gain of the uplink path when the noise figure exceeds a desired threshold, wherein the noise figure is determined as a function of a measured signal power of an undesirable signal component in the uplink path from the remote antenna unit.Type: ApplicationFiled: January 22, 2018Publication date: June 7, 2018Applicant: Andrew Wireless Systems GmbHInventors: Alfons Dussmann, Samuele Brighenti
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Publication number: 20180129841Abstract: A distributed antenna system includes a plurality of remote antenna units with a passive element coupled to at least one of the remote antenna units at a connection juncture. An RFID system is associated with the first passive element and has RFID data identifying the first passive element. An interrogator unit is associated with the remote antenna unit and is configured for generating a least one signal for transmission to the passive element to be reflected at the connection juncture and received at the interrogator unit. The interrogator unit is also configured for generating at least one signal for transmission to the RFID system to obtain the RFID data identifying the passive element. Processing circuitry processes the reflected signal and measures a parameter of the first passive element. The processing circuitry correlates the measured parameter with the RFID data for the passive element.Type: ApplicationFiled: January 5, 2018Publication date: May 10, 2018Applicant: Andrew Wireless Systems GmbHInventors: Joerg Stefanik, Alfons Dussmann
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Publication number: 20180102830Abstract: A repeater system includes a first master unit and a second master unit located on the movable object, such as a train. The master units are each connected to an antenna for receiving a downlink RF signal from at least one base station outside of the movable object and for transmitting an uplink RF signal towards the base station. Remote units are associated with different coverage areas within the movable object and are connected to the master units unit via a transport medium. The remote units are each connected to an antenna system for transmitting the downlink RF signal into the associated coverage area of the movable object and for receiving the uplink RF signal from the coverage area. A control unit can control first gain for the connection with the first master unit and a second gain for the connection with the second master unit.Type: ApplicationFiled: October 15, 2015Publication date: April 12, 2018Inventors: Keld Knut Lange, Alfons Dussmann, Daniel Schwab
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Publication number: 20180102829Abstract: A digital repeater system for repeating RF signals can include a receiving section for receiving an RF input signal that includes a frequency band with at least one subband associated with a communication channel of a telecommunications network. The receiving section can digitize the RF input signal to obtain a digital signal. A filter device includes a digital filter with a passband for filtering the digital signal. The digital filter is configurable by setting filter coefficients. A gain control device can set the gain of at least a portion of the digital signal. A transmitting section can transmit an RF output signal and can convert the digital signal to the RF output signal for transmission. A control unit can configure the filter coefficients of the digital filter based on the gain setting of the gain control device.Type: ApplicationFiled: October 19, 2015Publication date: April 12, 2018Inventors: Keld Knut Lange, Alfons Dussmann, Daniel Schwab
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Publication number: 20180069741Abstract: Certain features relate to a telecommunications system with a modular frequency combiner combining multiple received signals at different frequency bands without using frequency-dependent multiplexers. The frequency combiner can include adjustable tuning elements for adjusting various signal-processing parameters of the frequency combiner while the frequency combiner is in the telecommunications system. For example, adjustable tuning elements can adjust the phases of phase shifters of each RF path so that the RF paths are matched for combining the received signals and outputting them through an output port. The adjustable tuning elements can also adjust the electrical length or physical length of the transmission lines that carry the received signals. The adjustable tuning elements can be adjusted manually or automatically while the frequency combiner is deployed in the field in the telecommunications system.Type: ApplicationFiled: October 23, 2015Publication date: March 8, 2018Inventors: Thomas Kummetz, Peter Schmid, Alfons Dussmann, Karl-Heinz Fackler, Roman Hofman
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Patent number: 9906319Abstract: A switching control module can optimize time division duplexing operations of a distributed antenna system (“DAS”). The switching control module can include a measurement receiver and a processor. The measurement receiver can measure signal powers of downlink signals in a downlink path of the DAS. The processor can determine start times for downlink sub-frames transmitted via the downlink path based on downlink signal powers measured by the measurement receiver exceeding a threshold signal power. The processor can identify a clock setting that controls a timing of switching signals used for switching the DAS between an uplink mode and a downlink mode. The processor can statistically determine a switching time adjustment for the clock setting based on switching time differentials between the clock setting and the start times. The processor can update the clock setting based on the switching time adjustment.Type: GrantFiled: January 12, 2016Date of Patent: February 27, 2018Assignee: Andrew Wireless Systems GmbHInventors: Daniel Schwab, Thomas Kummetz, Alfons Dussmann
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Patent number: 9894623Abstract: Aspects and features are directed to an uplink integrity detection sub-system. In one aspect, a distributed antenna system is provided that includes a remote antenna unit that communicates with wireless devices in a coverage area, additional remote antenna units that communicate with wireless devices in additional coverage areas, and a unit that communicates with the remote antenna unit and the additional remote antenna units. The unit includes a distributed antenna system controller. The distributed antenna system controller can determine that an undesirable signal component having a power level exceeding a threshold power is communicated via an uplink path from the remote antenna unit. The distributed antenna system controller can also minimize an impact of the undesirable signal component on the additional coverage areas of the additional remote antenna units. Minimizing the impact can include modifying the gain of the uplink path over which the undesirable signal component is communicated.Type: GrantFiled: September 14, 2012Date of Patent: February 13, 2018Assignee: Andrew Wireless Systems GmbHInventors: Alfons Dussmann, Samuele Brighenti
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Patent number: 9864884Abstract: A distributed antenna system includes a plurality of remote antenna units with a passive element coupled to at least one of the remote antenna units at a connection juncture. An RFID system is associated with the first passive element and has RFID data identifying the first passive element. An interrogator unit is associated with the remote antenna unit and is configured for generating a least one signal for transmission to the passive element to be reflected at the connection juncture and received at the interrogator unit. The interrogator unit is also configured for generating at least one signal for transmission to the RFID system to obtain the RFID data identifying the passive element. Processing circuitry processes the reflected signal and measures a parameter of the first passive element. The processing circuitry correlates the measured parameter with the RFID data for the passive element.Type: GrantFiled: July 15, 2016Date of Patent: January 9, 2018Assignee: Andrew Wireless Systems GmbHInventors: Joerg Stefanik, Alfons Dussmann
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Patent number: 9854557Abstract: A communication system includes a receive antenna for receiving communication signals, processing circuitry for processing the received communication signals and repeating the signals for further transmission and at least one transmit antenna for transmitting the repeated signals. The processing circuitry utilizes configurable settings for controlling the operation of the communication system and the configurable settings are variable for varying the operation of the system. The processing circuitry is further operable for receiving inputs regarding current operating conditions of the communication system and for selectively adapting the configurable settings of the system based upon the operating condition inputs.Type: GrantFiled: December 13, 2016Date of Patent: December 26, 2017Assignee: CommScope Technologies LLCInventors: Thomas Kummetz, Van E. Hanson, Alfons Dussmann
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Publication number: 20170366246Abstract: In one embodiment, a repeater for wireless communication is provided.Type: ApplicationFiled: June 19, 2017Publication date: December 21, 2017Inventors: Oliver Braz, Alfons Dussmann, Luigi Tarlazzi, Thomas Haustein, Thomas Wirth, Dennis Wieruch, Friedrich Jondral, Holger Jakel
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Publication number: 20170303337Abstract: Scalable telecommunications systems and methods are provided. In one embodiment, a node unit for a scalable telecommunications system comprises: a plurality of universal digital RF transceivers each configured to communicatively couple the node unit to external equipment; one or more universal digital transport interfaces each configured to communicatively couple the node unit to a respective transport link; a universal backplane communicatively coupled to the universal digital RF transceivers and universal digital transport interfaces; and a system controller; wherein each of the universal digital RF transceivers is configured to couple to a respective modular power amplifier and a modular duplexer inserted within the node unit.Type: ApplicationFiled: June 29, 2017Publication date: October 19, 2017Inventors: Alfons Dussmann, Thomas Kummetz, Peter Schmid, Karl-Heinz Fackler
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Patent number: 9793982Abstract: A communication system includes a receive antenna for receiving communication signals, processing circuitry for processing the received communication signals and repeating the signals for further transmission and at least one transmit antenna for transmitting the repeated signals. The processing circuitry utilizes configurable settings for controlling the operation of the communication system and the configurable settings are variable for varying the operation of the system. The processing circuitry is further operable for receiving inputs regarding current operating conditions of the communication system and for selectively adapting the configurable settings of the system based upon the operating condition inputs.Type: GrantFiled: April 21, 2009Date of Patent: October 17, 2017Assignee: CommScope Technologies LLCInventors: Thomas Kummetz, Van Hanson, Alfons Dussmann