Xieon Networks S.a.r.l.

Adtran Gmbh

Nokia Siemens Networks Oy

Siemens Aktiengesellschaft

Nokia Solutions and Networks Oy

Thomas Treyer

Thomas Haustein

Wolfgang Zirwas

Harald Rohde

Sylvia Smolorz

Erich Gottwald

Karl Kloppe

Matthias Schnitter

Oliver Veits

Thomas Gemmer

Bernhard Schweyer

Roberto Bianchi

Friedrich Armbruster

Josef Froehler

Soenke Rosner

Stephan Brandenburg

Josef Mück

Frank Filipiak

Sönke Rosner

Curt Badstieber

Georg Kirchner

Carsten Block

Josef Fröhler

A method for data processing of an optical network unit is provided, the method comprising the steps of receiving a configuration information at the optical network unit, adjusting a light signal to a wavelength or wavelength range indicated by the configuration information, demodulating an incoming optical signal by means of the light signal, mixing the demodulated incoming optical signal with a signal generated by an oscillator and generating a modulated optical upstream signal modulating the light signal by means of a software radio, so that the resulting optical upstream frequency can be shifted with respect to the frequency of the local oscillator by a programmable amount. Furthermore, an according device and a communication system are suggested comprising at least one such device.

Data processing of an optical network element

A method and a device are provided for processing data in an optical network. The method includes the steps of events of a login scan are recorded by a first optical network element; the events are conveyed to a second optical network element; and the events are processed by the second optical network element. A communication system is described that includes the device.

Method and device for processing data in an optical network

In a network terminal (ONU) of an optical network near end crosstalk (NEC) is compensated by a digital generated cancellation signal. To establish a connection with another terminal (OLT) signals avoiding NEC are transmitted and the compensation is performed while the power of the transmitted signal is increased in steps.

Method and arrangement for signal transmission and compensation of back reflections in optical access PON systems

In a method for processing a network service request, a first network element that is logically closest to a user requesting the network service manages a file into which data can be entered in respect of a user authorization to receive the network service. A network element includes a device for allowing and blocking transmission of a network service to a user requesting the network service. The device can be switched in accordance with the authorization data contained in the data memory.

Method for processing a network service request in which a file with authorization information is maintained with a network element located logically closest to the user requesting the network service

A method and a device for data processing between a first network element connected via several lines to several second network elements. The method includes the following steps: (i) if a line is trained, at least one other line is switched to a first mode; and (ii) if the line has been trained, the at least one other line is free to switch to a second mode.

Method and device for data processing in XDSL system

A method for processing data in an optical network element are provided, wherein the optical network element comprises a local oscillator operating at a first frequency; wherein an incoming data stream is received at a second frequency; wherein the incoming data steam is processed using the first frequency; wherein a first pattern is searched in the incoming data stream; wherein a second pattern is searched in the incoming data stream; and wherein the first pattern corresponds to the first frequency being in the spectrum on one side of the second frequency and the second pattern corresponds to the first frequency being in the spectrum on the other side of the second frequency. Also, a corresponding optical network element and a communication system comprising at least one such optical network element are suggested.

Processing data in an optical network element

A method for data processing of an optical network element is provided, wherein a configuration information is received at the optical network element and a light signal is adjusted to a wavelength or wavelength range indicated by said configuration information; wherein an incoming optical signal is demodulated via the light signal and mixed as an electrical demodulated signal with a signal of an oscillator; wherein the signal of the oscillator is tuned to improve a reception of the incoming signal at the optical network element; and wherein the light signal is used for upstream modulation to provide a modulated optical upstream signal. Furthermore, an according device and a communication system are suggested including at least one such device.

A collimator for a laser assembly includes a first electrostatically controllable liquid lense having a first optical axis and a second electrostatically controllable liquid lense having a second optical axis aligned with the first optical axis. A laser is provided and has such a collimator. Finally, a transmitter uses the laser for optical data transmission.

Electrically controllable collimator in a laser resonator

A method transfers information from and/or to a subscriber-sided communication device wherein at least one first communication relationship between the subscriber-sided communication device and a decentralized communication device which is associated with at least one communication network is established. Also, at least one additional communication relationship between the central communication device and a network access communication network is established. First information can be exchanged between the subscriber-sided communication device and the superior communication network via the first and the at least one additional communication relationship. Additional information which is transferred via the at least one communication network to the decentralized communication device is transferred via the first communication relationship to the subscriber-sided communication device. Advantageously, traditional subscriber-sided communication devices and network-sided network access devices and multimedia-data sources can still be used for using current and future multimedia-data services.

Method, communication arrangement and communication device for transferring information

A method and a device for operating a laser in an optical component are provided, wherein the laser is a local oscillator of the optical component; and wherein a linewidth of the laser is broadened. Furthermore, an optical communication system is suggested comprising said optical component.

Method of operating a laser in an optical component, optical component, and optical communication system

A method and a device for data processing in a network having a first network element and a second network element performs the following steps: (a) the second network element provides a control information to the first network element; (b) a portion of data sent from the first network element to the second network element is identified by the control information; and (c) upon identification of the portion of data a retransmission from the first network element to the second network element can be initiated.

Method and device for data processing and communication system comprising such device

A method and a device are provided for transmitting or receiving a clock signal. The method includes the step of transmitting or receiving at least two wave bands via a digital subscriber line, wherein a clock signal is conveyed via one of the at least two wave bands. The clock signal may be used for mobile clock synchronization.

Method and device for transmitting or receiving a clock signal and communication system comprising such device

A method and a device for data processing in an optical network element are suggested, wherein the optical network element changes between a low-speed mode and a high-speed mode of data transmission. In this manner, the optical network element has efficient power savings because it can effectively operate in the low-speed mode which requires less power consumption.

Method and device for data processing

A method for diagnosing an optical communication network having a control system, an optical hub, and multiple optical network terminators. The hub communicates with all the network terminators via an inband management channel. In case one network terminator disturbs the communication from the network terminators to the hub and the communication from the hub to the network terminators is functional, the control system sends a shut-off command to one network terminator, checks if the disturbance is gone, if the disturbance is not gone, sends a pulse mode activation command to this network terminator, checks if there is a superposition signal of the disturbance signal with a pulse mode signal and marks the network terminator as bad, if the pulse signal is not superimposed.

Method to diagnose an optical communication network

The packet-oriented communications facility comprises at least one token-bucket unit, which comprises a time-bucket unit and of a byte-credit unit. Data volume tokens, which each represent a predetermined data volume, are stored in the byte-credit unit. A token generation time interval and a token generation time are assigned to the time-bucket unit. In addition, a processing time is assigned to each data packet before the subsequent processing. In the time-bucket unit, the transmission time interval available for the subsequent processing of a data packet is determined, and a portion of the available transmission time interval is converted into data volume tokens solely in the event that the token generation time interval is exceeded by the determined available transmission time interval. The generated data volume tokens are stored in the byte-credit unit, and the token generation time is updated. The data volume required for subsequently processing the data packet is subsequently allocated in such a manner that the number of data volume tokens of the byte-credit unit corresponding to data volume are removed.

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Munich, Germany

Thomas Treyer