Network interface, network and method for data transmission within the network

Patent metadata

Field	Value
Publication number	US-10439841-B2
Application number	US-201615177712-A
Country	US
Kind code	B2
Filing date	Jun 9, 2016
Priority date	Jun 11, 2015
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A network interface of a network user having at least one physical interface for connecting the network interface to a network interface of a different network user, at least one data selector, which is connected to the physical interface and which is suitable for receiving data from the physical interface and sending data to the physical interface, and at least one data switch, which is connected to the data selector and which is suitable for receiving data from the data selector and sending data to the data selector.

First claim

The invention claimed is:

1. A network having a multiplicity of network users connected to one another in a ring arrangement, each of the network users comprising:
a first physical interface for connecting a network interface of a corresponding network user to a network interface of a second network user;
a second physical interface for connecting the network interface of the corresponding network user to a network interface of a third network user;
at least one data selector connected to the first physical interface via a first data connection line and to the second physical interface via a second data connection line, the at least one data selector comprising a data receiver configured for providing a data receiving connection to at least one of the first and second physical interfaces, and a data transmitter configured for providing a data transmitting connection to at least one of the first and second physical interfaces; and
at least one data switch connected to the at least one data selector via at least a third data connection line and configured for receiving incoming data from the at least one data selector or transmitting outgoing data to the at least one data selector,
wherein the at least one data selector is configured for forwarding data received from one of the first or second physical interfaces to one of the second or third network users and to the at least one data switch,
wherein the at least one data selector is further adapted to duplicate the data received from one of the first or second physical interfaces in a downlink and to forward the received data to one of the second or third network users and the at least one data switch, without an intermediate storage,
wherein at least one of the network users is a server network user and other network users are client network users, and
wherein after an occurrence of a defect, the client network users, which are arranged in the network in a data flow direction downstream of a position of the defect, are configured to reverse the data flow direction, so that one of the first and second physical interfaces, which was adapted before the reversal, to provide a data receiving connection in the downlink, is adapted to provide a data transmitting connection, and the other of the first and second physical interfaces, which was adapted before the reversal, to provide a data transmitting connection in the downlink, is adapted to provide a data receiving connection, and
the server network user in the downlink is configured to send data to the client network users in both a downstream direction of the position of the defect and an upstream direction of the position of the defect.

2. The network according to claim 1 , wherein each of the network users has the first physical interface for the downlink and the second physical interface for an uplink.

3. The network according to claim 1 , wherein the at least one data selector is adapted to carry out a timing recovery for incoming data from one of the first and second physical interfaces.

4. The network according to claim 1 , wherein the at least one data selector is connected to at least one of the first and second physical interfaces and to the at least one data switch for transmitting data between the at least one of the first and second physical interfaces and the at least one data switch of the network interface, and
wherein a control device of the network interface of the network user is connected at least to the at least one data selector, the at least one of the first and second physical interfaces and the at least one data switch in such a manner that control signals are transmittable between the control device and the at least one data selector, the at least one of the first and second physical interfaces and the at least one data switch.

5. The network according to claim 4 , wherein the control device is connected to the network user via a status line, to receive status information of the network user.

6. The network according to claim 1 , wherein a network interface of the server network user is configured to send and to receive data in the downlink and an uplink via the at least one data switch in each case.

7. The network according to claim 1 , wherein a network interface of the server network user is configured for comparing data received from a last client network user in the downlink with data that were sent by the server network user to a first client network user.

8. The network according to claim 1 , wherein physical connections between the network users are realized fiber optically or electrically.

9. A method for data transmission in an event of a defect in the network having a multiplicity of network users connected to one another in a ring arrangement, the method comprising:
connecting, by a first physical interface, a network interface of a corresponding network user, to a network interface of a second network user;
connecting, by a second physical interface, the network interface of the corresponding network user to a network interface of a third network user;
wherein at least one data selector comprises a data receiver and a data transmitter;
providing, by the data receiver, a data receiving connection to at least one of the first and second physical interfaces;
providing, by the data transmitter, a data transmitting connection to at least one of the first and second physical interfaces, wherein the at least one data selector is connected to the first physical interface via a first data connection line and to the second physical interface via a second data connection line;
receiving, by at least one data switch, incoming data from the at least one data selector or transmitting outgoing data to the at least one data selector, wherein the at least one data switch is connected to the at least one data selector via at least a third data connection line;
forwarding, by the at least one data selector, data received from one of the first or second physical interfaces to one of the second or third network users and to the at least one data switch;
duplicating, by the at least one data selector, the data received from one of the first or second physical interfaces in a downlink;
forwarding, by the at least one data selector, the received data to one of the second or third network users and the at least one data switch, without an intermediate storage,
wherein at least one of the network users is a server network user and other network users are client network users, the network comprising a network ring;
when a defect occurs, then reversing, by the client network users, a data flow direction after the occurrence of the defect, wherein the client network users are arranged in the network in the data flow direction downstream of a position of the defect, so that one of the first and second physical interfaces, which was adapted before the reversal, to provide a data receiving connection in the downlink, is adapted to provide a data transmitting connection, and the other of the first and second physical interfaces, which was adapted before the reversal, to provide a data transmitting connection in the downlink, is adapted to provide a data receiving connection, and
sending, by the server network user in a downlink, data to the client network users in both a downstream direction of the position of the defect and an upstream direction of the position of the defect.

10. The method according to claim 9 , further comprising:
sending, by the server network user, data to the first physical interface of a first client network user, in the case of the downlink;
forwarding, by the at least one data selector of the first client network user, the data received from the first physical interface of t

Assignees

• Airbus Defence & Space Gmbh

Inventors

• Pruecklmeier Andreas
• Pistner Thomas
• Schneele Stefan

Classifications

• H04L2012/421

  Interconnected ring systems · CPC title

• H04L2012/4028

  the transportation system being an aircraft · CPC title

• H04L67/12

  specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks · CPC title

• H04L12/437 Primary

  Ring fault isolation or reconfiguration {(for SDH/SONET ring networks H04J3/085)} · CPC title

• H04L12/42 Primary

  Loop networks · CPC title