Andrew Wireless Systems Gmbh

Commscope Technologies LLC

Outdoor Wireless Technologies LLC

Peter Starek

Jaroslav Hoffmann

Karl-Heinz Fackler

Andreas Biehler

Alexander Kopp

Systems and methods for adaptive power converters are provided. In one embodiment, an adaptive power converter comprises: a power converter controller; a switching power conversion circuit comprising an input switch, a low-pass filter, and a non-linear control feedback compensator, the input switch controlled using feedback control from the non-linear control feedback compensator, wherein the non-linear control feedback compensator controls the input switch to regulate an output from the power conversion circuit based on multiple regulation profiles; a measurement estimate and gain module; and a power converter state detection and correction function. The measurement estimate and gain module evaluates power converter state information from the power converter state detection and correction function. Based on the power converter state information, the measurement estimate and gain module controls the compensator to select a regulation profile, wherein the non-linear control feedback compensator applies the regulation profile for regulating the output from the conversion circuit.

Systems and methods for adaptive power converters

In one embodiment, a distributed antenna system comprises: at least one master unit; at least one remote antenna unit communicatively coupled via a switch to the master unit by a primary cable and a secondary cable both coupled to the switch, the remote antenna unit comprising a compensating link check module that outputs a control signal to the switch, wherein the switch selects between the primary and secondary cable in response to the control signal; wherein the compensating link check module controls the switch to momentarily select the secondary cable to perform a link check during which the remote unit measures a quality metric of a downlink signal received via the secondary cable; and upon initiation of the link check, the compensating link check module adjusts an attenuation of the downlink signal received on the secondary cable by loading calibration settings for the secondary cable into a compensation attenuator.

Systems and methods for communication link redundancy for distributed antenna systems

In one embodiment, a distributed antenna system comprises: a master unit configured to receive a base station downlink radio frequency signal and to transmit a base station uplink radio frequency signal; and at least one remote antenna unit that is communicatively coupled to the master unit using at least one cable, the remote antenna unit configured to radiate a remote downlink radio frequency signal and to receive a remote uplink radio frequency signal; wherein the master unit comprises: a controller; and a respective interface to couple the controller to a first operator control panel; wherein the at least one remote antenna unit comprises: a controller; and a respective interface to couple the controller to a second operator control panel; wherein the master unit controller and the remote unit controller synchronize at least some information between the first and second operator control panels over the at least one cable.

Systems and methods for communicating signaling over an optical distributed antenna system

In one embodiment, an emergency configuration control device is provided for a communications system that provides wireless RF communication service to a coverage area, wherein the system comprises an RF protection function coupled to at least one power amplifier, protection function configured to disable the power amplifier when the protection function determines that at least one parameter of the power amplifier has deviated outside of an operating specification, the device comprising: an emergency configuration control module executed by a controller, the emergency configuration control module configured to determine when an emergency event is occurring within the coverage area as a function of a first set of input signals; wherein the emergency configuration control module enters phase one operation and inhibits disabling of the power amplifier by the RF protection function and outputs one or more phase one notification signals in response to determining that the emergency event is occurring.

Growing community of inventors

Donauwoerth, Germany

Peter Starek