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1. 发明授权

US10805818B2 Distributed antenna system with improved uplink leveling 有权
公开(公告)号：US10805818B2
公开(公告)日：2020-10-13
申请号：US15873764
申请日：2018-01-17
申请人： Andrew Wireless Systems GmbH
发明人： Alfred Lupper , Johannes Kroupa , Alfons Dussmann , Bogdan Mazilu
IPC分类号： H04W72/04 , H04W24/10 , H04W52/14 , H04L1/00 , H04B7/022 , H04B7/06 , H04W88/08 , H04B17/21
摘要： 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.

2. 发明授权

US10271380B2 Scalable telecommunications system 有权
公开(公告)号：US10271380B2
公开(公告)日：2019-04-23
申请号：US15637275
申请日：2017-06-29
申请人： Andrew Wireless Systems GmbH
发明人： Alfons Dussmann , Thomas Kummetz , Peter Schmid , Karl-Heinz Fackler
IPC分类号： H04B1/38 , H04L5/14 , H04W52/52 , H04W88/08 , H04L25/02 , H04B1/00 , H04B1/403
摘要： 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. The system controller is configured to detect capabilities of at least one of the universal digital RF transceivers, the universal digital transport interfaces, the universal backplane, the modular power amplifier and modular duplexer, and adjust parameters of the node unit in response to the detected capabilities.

3. 发明授权

US10212018B2 Module for combining signals having different frequencies 有权
公开(公告)号：US10212018B2
公开(公告)日：2019-02-19
申请号：US15559795
申请日：2015-10-23
申请人： Andrew Wireless Systems GmbH
发明人： Thomas Kummetz , Peter Schmid , Alfons Dussmann , Karl-Heinz Fackler , Roman Hofman
IPC分类号： H04B7/02 , H04B7/12 , H04L1/04 , H04L27/28 , H04B7/155 , G10L19/093
摘要： 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.

4. 发明授权

US10133892B2 System for characterizing a passive antenna network and elements in a distributed antenna system 有权
公开(公告)号：US10133892B2
公开(公告)日：2018-11-20
申请号：US15863604
申请日：2018-01-05
申请人： Andrew Wireless Systems GmbH
发明人： Joerg Stefanik , Alfons Dussmann
IPC分类号： G06K7/10 , G06K19/07 , H04W24/06 , H04B17/17 , H04W88/08
摘要： 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.

5. 发明授权

US10097257B2 Wireless communications network using frequency conversion of MIMO signals 有权
公开(公告)号：US10097257B2
公开(公告)日：2018-10-09
申请号：US15626786
申请日：2017-06-19
申请人： Andrew Wireless Systems GmbH , Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. , Karlsruher Institut für Technologie
发明人： Oliver Braz , Alfons Dussmann , Luigi Tarlazzi , Thomas Haustein , Thomas Wirth , Dennis Wieruch , Friedrich Jondral , Holger Jäkel
IPC分类号： H04B7/145 , H04B7/0413 , H04W72/04 , H04B7/155 , H04B7/26
摘要： In one embodiment, a repeater for wireless communication is provided. The repeater comprises: circuitry configured to receive first and second MIMO-coded information channels at a first frequency; a converting device configured to convert the first MIMO-coded information channel to a second frequency using information from a test receiver configured to determine unused frequency ranges situated outside frequency bands allocated to mobile radio for wireless communication, the test receiver communicatively coupled with the converting device, the converting device configured to convert the first MIMO-coded information channel to the second frequency in at least one communication direction, the second frequency within the unused frequency ranges situated outside the frequency bands allocated to mobile radio; and circuitry configured to transmit the first and second MIMO-coded information channels in the at least one communication direction, wherein the first and second MIMO-coded information channels are transmitted using different frequencies compared to each other.

6. 发明申请

US20180183537A1 SWITCHING SUB-SYSTEM FOR DISTRIBUTED ANTENNA SYSTEMS USING TIME DIVISION DUPLEXING 审中-公开
公开(公告)号：US20180183537A1
公开(公告)日：2018-06-28
申请号：US15894616
申请日：2018-02-12
申请人： Andrew Wireless Systems GmbH
发明人： Daniel Schwab , Thomas Kummetz , Alfons Dussmann
IPC分类号： H04J3/06 , H04W88/08 , H04W72/04 , H04B7/024 , H04W24/02
CPC分类号： H04J3/0638 , H04B7/022 , H04B7/024 , H04J3/0685 , H04L5/1469 , H04W24/02 , H04W72/0446 , H04W88/085
摘要： 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.

7. 发明申请

US20180129841A1 SYSTEM FOR CHARACTERIZING A PASSIVE ANTENNA NETWORK AND ELEMENTS IN A DISTRIBUTED ANTENNA SYSTEM 审中-公开
公开(公告)号：US20180129841A1
公开(公告)日：2018-05-10
申请号：US15863604
申请日：2018-01-05
申请人： Andrew Wireless Systems GmbH
发明人： Joerg Stefanik , Alfons Dussmann
IPC分类号： G06K7/10 , H04W24/06 , G06K19/07 , H04W88/08
CPC分类号： G06K7/10356 , G06K19/0723 , H04B17/17 , H04W24/06 , H04W88/085
摘要： 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.

8. 发明申请

US20180102830A1 REPEATER SYSTEM FOR USE ON A MOVEABLE OBJECT 有权
公开(公告)号：US20180102830A1
公开(公告)日：2018-04-12
申请号：US15560126
申请日：2015-10-15
申请人： Andrew Wireless Systems GmbH
发明人： Keld Knut Lange , Alfons Dussmann , Daniel Schwab
IPC分类号： H04B7/155 , H04W36/00 , H04W84/04 , H04W84/00
CPC分类号： H04B7/15535 , H04W36/0005 , H04W36/0011 , H04W84/005 , H04W84/047
摘要： 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.

9. 发明申请

US20180102829A1 DIGITAL REPEATER SYSTEM 审中-公开
公开(公告)号：US20180102829A1
公开(公告)日：2018-04-12
申请号：US15560113
申请日：2015-10-19
申请人： Andrew Wireless Systems GmbH
发明人： Keld Knut Lange , Alfons Dussmann , Daniel Schwab
IPC分类号： H04B7/155
CPC分类号： H04B7/15535 , H04B17/336
摘要： 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.

10. 发明授权

US09553656B2 System and method for reducing desensitization of a base station transceiver for mobile wireless repeater systems 有权
标题翻译：用于减少用于移动无线中继器系统的基站收发器的脱敏的系统和方法
公开(公告)号：US09553656B2
公开(公告)日：2017-01-24
申请号：US14021531
申请日：2013-09-09
申请人： Andrew Wireless Systems GmbH
发明人： Alfons Dussmann
IPC分类号： H04W52/14 , H04B7/155
CPC分类号： H04B7/15528 , H04B7/15535 , H04W24/08 , H04W88/08
摘要： 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.
摘要翻译：一种中继器系统，包括被配置为在至少一个设备和第一信号源之间重复信号的双向放大器电路。接收器电路与放大器电路耦合，提供与装置或第一信号源或第二信号源中的至少一个相关联的至少一个信号。控制器电路被配置为监视提供的信号的参数，其反映信号源或设备的属性。所监视的参数用于确定与第一信号源相关联的重复信号是否会使第二信号源的操作脱敏。控制器电路还可操作用于基于重复信号将使第二信号源的操作脱敏的确定来调整由双向放大器电路重复的信号的功率电平。

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