公开(公告)号：US11522737B2

公开(公告)日：2022-12-06

申请号：US17244285

申请日：2021-04-29

Applicant: CommScope Technologies LLC

Inventor： Marco Parrucci ,  Enrico Maria Fabbri ,  Samuele Brighenti

IPC: H04L27/08 ,  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.

公开(公告)号：US11212759B2

公开(公告)日：2021-12-28

申请号：US16805279

申请日：2020-02-28

Applicant: CommScope Technologies LLC

Inventor： Samuele Brighenti ,  Laura Macrelli ,  Marianna Fabbri

IPC: H04W52/52 ,  G01S13/89 ,  H04W52/34 ,  H04W88/08

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.

公开(公告)号：US20210250209A1

公开(公告)日：2021-08-12

申请号：US17244285

申请日：2021-04-29

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.

公开(公告)号：US10771293B2

公开(公告)日：2020-09-08

申请号：US16677403

申请日：2019-11-07

Applicant: CommScope Technologies LLC

Inventor： Marco Parrucci ,  Enrico Maria Fabbri ,  Samuele Brighenti

IPC: H03H7/30 ,  H04L25/03 ,  H04B17/318

Abstract: Systems and methods for automatic level control (ALC) are provided. In one embodiment, a system comprises a multi-threshold programmable 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.

公开(公告)号：US20180269933A1

公开(公告)日：2018-09-20

申请号：US15985454

申请日：2018-05-21

Applicant: CommScope Technologies LLC

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

IPC: H04B7/0413 ,  H04B1/00

CPC classification number: H04B7/0413 ,  H04B1/0096

Abstract: A method includes: receiving MIMO channel signals at original MIMO frequency from signal source(s) at master unit of DAS, set(s) of the MIMO channel signals including first MIMO channel signal and second MIMO channel signal; generating local oscillator signal at master unit; frequency converting first MIMO channel signal(s) and second MIMO channel signal(s) from original MIMO frequency to different frequency different from first legacy service frequency band using local oscillator signal at master unit; combining first MIMO channel signal, second MIMO channel signal, and local oscillator signal into combined signal at master unit; transmitting combined signal across optical link to remote unit; processing first MIMO channel signal and/or second MIMO channel signal at remote unit; and frequency converting converted MIMO channel signal(s) from different frequency different from first legacy service frequency band back to original MIMO frequency for transmission over antenna(s).

公开(公告)号：US20170195015A1

公开(公告)日：2017-07-06

申请号：US15464014

申请日：2017-03-20

Applicant: CommScope Technologies LLC

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

IPC: H04B7/0413 ,  H04B1/00

CPC classification number: H04B7/0413 ,  H04B1/0096

Abstract: A distributed antenna system, comprising: master unit configured to: receive MIMO channel signals at MIMO frequency from signal source, MIMO channel signals including first and second MIMO channel signals; generate LO signal; frequency convert first and/or second MIMO channel signal from MIMO frequency to different frequency close to first legacy service frequency band using the LO signal; combine first MIMO channel signal, second MIMO channel signal, and LO signal for transmission; optical link operably coupled with master unit; unit communicatively coupled with master unit via optical link for transceiving first second MIMO channel signal, unit including band processing circuitry configured to process first and second MIMO channel signal; conversion circuitry configured to receive converted MIMO channel signal and to frequency convert converted MIMO channel signal from frequency close to first legacy service frequency band back to MIMO frequency for transmission over antenna.