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    TRANSMITTER-RECEIVER ISOLATION CIRCUIT
    1.
    发明申请
    TRANSMITTER-RECEIVER ISOLATION CIRCUIT 有权

    公开(公告)号：US20210184723A1

    公开(公告)日：2021-06-17

    申请号：US17119659

    申请日：2020-12-11

    Applicant: CommScope Technologies LLC

    Inventor： Samuele Brighenti

    IPC: H04B1/525 ,  H04B1/48 ,  H04L5/14 ,  H04B17/12

    Abstract: A transmitter-receiver isolation circuit includes a transmitter port to receive a transmit signal, an antenna port for coupling to an antenna, and a receiver port to receive a receive signal. The circuit further includes: a first signal path between the transmitter and antenna ports configured to impart a first phase shift to a first transmit portion of the transmit signal; a second signal path between the transmitter and antenna ports configured to impart approximately the first phase shift to a second transmit portion of the transmit signal; a first leakage path between the transmitter and receiver ports configured to impart a second phase shift to a first leakage portion of the transmit signal; a second leakage path between the transmitter and receiver ports configured to impart to a second leakage portion of the transmit signal a third phase shift that is approximately opposite to the second phase shift.

    Systems and methods for automatic level control
    2.
    发明授权
    Systems and methods for automatic level control 有权

    公开(公告)号：US11025459B2

    公开(公告)日：2021-06-01

    申请号：US16934965

    申请日：2020-07-21

    Applicant: CommScope Technologies LLC

    Inventor： Marco Parrucci ,  Enrico Maria Fabbri ,  Samuele Brighenti

    IPC: H04L25/06 ,  H04L25/03 ,  H04B17/318

    Abstract: Systems and methods for automatic level control (ALC) are provided. In one embodiment, an ALC system for communications signals comprises: a multi-threshold programmable ALC controller; and at least one signal path that includes: a digital step attenuator configured to receive an analog communications signal and attenuate the analog communications signal in response to an attenuation adjustment signal from the ALC controller; and an analog-to-digital converter configured to receive the analog communications signal as attenuated by the digital step attenuator and generate samples of the attenuated analog communications signal, wherein the ALC controller receives the samples. The ALC controller comprises a plurality of clip detectors that function in parallel. Each of the clip detectors are programmed with a respective amplitude and time threshold. Based on which of the plurality of clip detectors determine that the samples exceed their respective amplitude and time threshold, the ALC controller generates the attenuation adjustment signal.

    SYSTEMS AND METHODS FOR AUTOMATIC LEVEL CONTROL
    3.
    发明申请
    SYSTEMS AND METHODS FOR AUTOMATIC LEVEL CONTROL 审中-公开

    公开(公告)号：US20200186399A1

    公开(公告)日：2020-06-11

    申请号：US16677403

    申请日：2019-11-07

    Applicant: CommScope Technologies LLC

    Inventor： Marco Parrucci ,  Enrico Maria Fabbri ,  Samuele Brighenti

    IPC: H04L25/03 ,  H04B17/318

    Abstract: Systems and methods for automatic level control (ALC) are provided. In one embodiment, a system comprises a multi-threshold programable ALC controller; and at least one signal path that includes: a digital step attenuator to receive an analog communications signal and attenuate the communications signal in response to an attenuation adjustment signal from the ALC controller; and an analog-to-digital converter configured to receive the communications signal as attenuated by the digital step attenuator, wherein the ALC controller receives complex IQ samples of the attenuated communication signal; wherein the ALC controller comprises a plurality of clip detectors that function in parallel, wherein each of the clip detectors are programmed with a respective amplitude and time threshold, wherein based on which of the plurality of clip detectors determine that the complex IQ samples exceed their respective amplitude and time threshold, the ALC controller generates the attenuation adjustment signal to the digital step attenuator.

    SYSTEMS AND METHODS FOR AUTOMATIC LEVEL CONTROL
    4.
    发明申请
    SYSTEMS AND METHODS FOR AUTOMATIC LEVEL CONTROL 审中-公开

    公开(公告)号：US20200351131A1

    公开(公告)日：2020-11-05

    申请号：US16934965

    申请日：2020-07-21

    Applicant: CommScope Technologies LLC

    Inventor： Marco Parrucci ,  Enrico Maria Fabbri ,  Samuele Brighenti

    IPC: H04L25/03 ,  H04B17/318

    Abstract: Systems and methods for automatic level control (ALC) are provided. In one embodiment, an ALC system for communications signals comprises: a multi-threshold programmable ALC controller; and at least one signal path that includes: a digital step attenuator configured to receive an analog communications signal and attenuate the analog communications signal in response to an attenuation adjustment signal from the ALC controller; and an analog-to-digital converter configured to receive the analog communications signal as attenuated by the digital step attenuator and generate samples of the attenuated analog communications signal, wherein the ALC controller receives the samples. The ALC controller comprises a plurality of clip detectors that function in parallel. Each of the clip detectors are programmed with a respective amplitude and time threshold. Based on which of the plurality of clip detectors determine that the samples exceed their respective amplitude and time threshold, the ALC controller generates the attenuation adjustment signal.

    DISTRIBUTED ANTENNA SYSTEM AND C-RAN SYSTEM UTILIZING SMART DETECTION OF SURROUNDING ENVIRONMENT
    5.
    发明申请
    DISTRIBUTED ANTENNA SYSTEM AND C-RAN SYSTEM UTILIZING SMART DETECTION OF SURROUNDING ENVIRONMENT 审中-公开

    公开(公告)号：US20200305096A1

    公开(公告)日：2020-09-24

    申请号：US16805279

    申请日：2020-02-28

    Applicant: CommScope Technologies LLC

    Inventor： Samuele Brighenti ,  Laura Macrelli ,  Marianna Fabbri

    IPC: H04W52/52 ,  H04W52/34 ,  G01S13/89

    Abstract: In one example, a system comprises a central unit and a radiating point located remotely from the central unit and communicatively coupled to the central unit. The radiating point is configured to provide radio frequency signals to a coverage zone via one or more antennas. The system further comprises a radar sensor communicatively coupled to the radiating point and configured to capture image data in the coverage zone of the radiating point, wherein the radar sensor includes a plurality of transmitters and receivers coupled to an antenna array. One or more components of the system are configured to determine user detection data for users in the coverage zone based on the image data captured by the radar sensor and adjust the power consumption of the radiating point based on the user detection data.

    DISTRIBUTED ANTENNA SYSTEM FOR MIMO SIGNALS
    6.
    发明申请
    DISTRIBUTED ANTENNA SYSTEM FOR MIMO SIGNALS 有权
    用于MIMO信号的分布式天线系统

    公开(公告)号：US20160119041A1

    公开(公告)日：2016-04-28

    申请号：US14987025

    申请日：2016-01-04

    Applicant: CommScope Technologies LLC

    Inventor： Peter Schmid ,  Peter Gunzner ,  Harald Langer ,  Stefan Eisenwinter ,  Oliver Braz ,  Marianna Fabbri ,  Enrico Maria Fabbri ,  Samuele Brighenti ,  Marco Parucci ,  Massimiliano Mini ,  Thomas Kummetz

    IPC: H04B7/04 ,  H04B1/00

    CPC classification number: H04B7/0413 ,  H04B1/0096

    Abstract: A distributed antenna system includes a master unit configured to receive at least one set of multiple input multiple output (MIMO) channel signals from at least one signal source. The master unit is configured to frequency convert at least one of the MIMO channel signals to a different frequency from an original frequency, and combine the MIMO channel signals for transmission. An optical link couples the master unit with a unit remote from the master unit for transceiving the MIMO channel signals. Conversion circuitry is configured to frequency convert at least one of the first and second MIMO channel signals from the different frequency back to an original frequency for transmission over an antenna.

    Abstract translation: 分布式天线系统包括被配置为从至少一个信号源接收至少一组多输入多输出（MIMO）信道信号的主单元。 主单元被配置为将MIMO信道信号中的至少一个频率转换成与原始频率不同的频率，并且组合用于传输的MIMO信道信号。 光链路将主单元与远离主单元的单元耦合，用于收发MIMO信道信号。 转换电路被配置为将来自不同频率的第一和第二MIMO信道信号中的至少一个频率转换回原始频率以通过天线传输。

    Transmitter-receiver isolation circuit
    8.
    发明授权
    Transmitter-receiver isolation circuit 有权

    公开(公告)号：US11431376B2

    公开(公告)日：2022-08-30

    申请号：US17119659

    申请日：2020-12-11

    Applicant: CommScope Technologies LLC

    Inventor： Samuele Brighenti

    IPC: H04B1/525 ,  H04B17/12 ,  H04L5/14 ,  H04B1/48 ,  H01Q1/52 ,  H04B1/44 ,  H04B7/0413

    Abstract: A transmitter-receiver isolation circuit includes a transmitter port to receive a transmit signal, an antenna port for coupling to an antenna, and a receiver port to receive a receive signal. The circuit further includes: a first signal path between the transmitter and antenna ports configured to impart a first phase shift to a first transmit portion of the transmit signal; a second signal path between the transmitter and antenna ports configured to impart approximately the first phase shift to a second transmit portion of the transmit signal; a first leakage path between the transmitter and receiver ports configured to impart a second phase shift to a first leakage portion of the transmit signal; a second leakage path between the transmitter and receiver ports configured to impart to a second leakage portion of the transmit signal a third phase shift that is approximately opposite to the second phase shift.

    RECONFIGURABLE CREST FACTOR REDUCTION IN A DISTRIBUTED COMMUNICATION SYSTEM
    10.
    发明公开
    RECONFIGURABLE CREST FACTOR REDUCTION IN A DISTRIBUTED COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20240121145A1

    公开(公告)日：2024-04-11

    申请号：US18482639

    申请日：2023-10-06

    Applicant: CommScope Technologies LLC

    Inventor： Samuele Brighenti ,  Gabriele Moroni ,  Massimo Del Prete ,  Rainer Friedrich ,  Patrick Braun ,  Peter Schmid

    IPC: H04L27/26

    CPC classification number: H04L27/2623

    Abstract: To provide improvements in crest factor reduction in a distributed communication system, CFR configuration parameters can be determined based on communication signals received from a base station entity and distributed to node(s) of the distributed communication system. CFR engine(s) in the node(s) may perform CFR based on the CFR configuration parameters, and/or may adjust their CFR engine(s) based on signal parameters and/or operating parameters of a power amplifier coupled to a respective CFR engine. Some or all CFR processing may be offloaded from a node and assigned to optical transport card(s) of the system controller based on a processing bandwidth associated with the optical transport card(s).

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