Alcatel Lucent

Alcaltel Lucent

Jörg Hehmann

Harald Schmuck

Thomas Pfeiffer

Michael Straub

Stijn Meersman

Richard Heidemann

Rudi Vankeirsbilck

Yannick Clybouw

Lothar Jentsch

Benian Hiba

The invention relates to a method for performing network functions for a subscriber-sided (CPE) network access unit (ONT) in a telecommunication's access network with a central unit (CO, OLT), a distribution network (AN), and a multiple of network-sided network termination units (DPD) with subscriber-sided network access units (ONT) connected or connectable thereto, in which network a bidirectional communication path () is present between the central unit (CO) and that network-sided network termination unit (DPD), to which the subscriber-sided network access unit (ONT) under consideration is connected, in which for performing network functions a further bidirectional communication path () between the subscriber-sided network access unit (ONT) under consideration and the corresponding network-sided network termination unit (DPD) is used in connection with the bidirectional communication path () between the central unit (CO, OLT) and that network-sided network termination unit (DPD), as well as to a telecommunication's access network (FIG.), a central unit (CO, OLT), a network-sided network termination unit (DPD), and a subscriber-sided network access unit (ONT).

Method and apparatuses for performing network functions in a passive optical network

The invention relates to a method for a telecommunication's network with a central office (CO), an access network (AN), a multiple of network terminating units (DPD) and customer premises equipment (CPE) connected thereto, to assign a customer premises equipment (CPE) to a service contract (SI) registered in the central office (CO), in which, when the network terminating units (DPD) are identifiable unambiguously and individually and when the customer premises equipment (CPE) is identifiable unambiguously, the service contract (SI) is assigned to a particular customer premises equipment (CPE) as a result of an action (OS) of a network terminating unit (DPD) being recognizable by the central office (CO) and being coordinated with signals sent from a customer premises equipment (CPE) connected to said network terminating unit (DPD), and in which such coordination is detected in the central office (CO) for assignment, to a central office, and to a network terminating unit.

Method for a telecommunication's network, central office, and network terminating unit

The invention relates to a method for monitoring a passive optical network having a tree-like structure with a main line and a plurality of branches. The method includes transmitting a wake-up signal from an optical line termination (OLT) arranged in the main line to a plurality of monitoring units arranged in the branches. The method also includes detecting the wake-up signal and listening to information requests from the OLT in the monitoring units during a listening time interval after the detection of the wake-up signal. The method further includes transmitting an information request to be received in the listening time interval from the OLT to the monitoring units. The method additionally includes receiving the information request in the monitoring units during the listening time interval, one of the monitoring units which is addressed by the information request transmitting a response message back to the OLT.

Monitoring method for a passive optical network

A method for monitoring a passive optical network (), PON, having a tree-like structure with a main line () and at least two branches (to), comprising: transmitting a wake-up signal () from the main line () to at least two monitoring units (DPMto DPM) arranged in the at least two branches (to), in each of the monitoring units (DPMto DPM), detecting the wake-up signal () and transmitting a response signal (A, B, C) back to the main line (), each of the monitoring units (DPMto DPM) generating a pre-defined time delay (&#x394;tto &#x394;t) between the detection of the wake-up signal () and the start of the transmission of the response signal (A, B, C), and receiving the response signals (A, B, C) at the main line (), the receiving times (Rto R) of the response signals (A, B, C) being different from each other, the difference between the receiving times (Rto R) being adjusted by the pre-defined time delays (&#x394;tto &#x394;t) of the monitoring units (DPMto DPM).

Method for monitoring a passive optical network using monitoring units

An optical network having a tree-like structure with a main line and a plurality of branches, at least two of the branches comprising a monitoring unit for upstream signalling to the main line, wherein each of the monitoring units comprises a signal generation unit with a light source for generation of a pre-defined optical signal, and the monitoring units are construed to generate pre-defined optical signals which are different from each other, as well as a monitoring unit for generating a periodic upstream signal in such an optical network and a method for monitoring such an optical network.

Optical network, monitoring unit and monitoring method

Method for coordinating measurements and calibrations in a passive optical network, PON, in particular in a Gigabit PON, the method comprising: generating, in an optical line termination (), OLT, a downstream frame (), transmitting the downstream frame () from the OLT to a plurality of optical network terminations (to), ONTs, the downstream frame () comprising at least one allocation structure () for allocating to at least one targeted ONT (to) a time slot for transmitting upstream data, the allocation structure () indicating that the type of upstream data to be transmitted during the allocated time slot is measurement data () or calibration data.

Method for coordinating measurements and calibrations in a passive optical network

The invention concerns a transceiver module for an optical data network, comprising an optical interface for connection with an optical transmission line and an electrical interface for connection with a host board, wherein the electrical interface is suitable for providing the transceiver module with payload data to be sent on the optical transmission line and for providing the host board with payload data read from the optical transmission line, and further comprising monitoring means for monitoring the optical transmission line, which the transceiver module comprises an analyzing means for processing measuring data provided by the monitoring means in a statistical manner, and where the analyzing means is connected to the electrical interface for providing processed measuring data to the electrical interface. The inventive transceiver module is easy to install, and only a small amount of monitoring data needs to be transferred.

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Weil der Stadt, Germany

Jörg Hehmann