Transmission system, repeater and receiver

A repeater implemented in a data transmission system including a transmitter and a receiver, the transmitter sending data to the receiver, the receiver receiving the data sent from the repeater, the repeater receiving the data sent from the transmitter and transferring the received data to the receiver,

• wherein the transmitter is coupled to the repeater, which receives the data sent from the transmitter, by a first transmission path,
• wherein the repeater, which sends the data to the receiver, is coupled to the receiver by a second transmission path,
• wherein the first transmission path is configured with a first number of transmission lanes bundled together,
• wherein the second transmission path is configured with a second number of transmission lanes bundled together,
• wherein the transmitter, the repeater and the receiver have a number of virtual lanes that can be multiplexed into the first number of transmission lanes and the second number of transmission lanes, and
• wherein the repeater is configured to:
• receive multiplexed data streams from the transmission lanes included in the first transmission path;
• demultiplex the received data streams into as many data streams as the number of the useable virtual lanes based on useable lane information, which is inserted in the data streams sent from the transmitter and includes information about the useable virtual lanes;
• monitor failures of the transmission lanes of the first transmission path and the virtual lanes;
• insert failure notification information into a data stream that is output from a virtual lane which is failed;
• multiplex data streams output from the virtual lanes into as many streams as the number of the transmission lanes of the second transmission path;
• and
• send the multiplexed data streams from the transmission lanes included in the second transmission path to one of the receiver and another repeater, so as to send the transmission data to the one of the receiver and the another repeater.

A receiver implemented in a data transmission system including a transmitter and a repeater, the transmitter sending data to the receiver, the repeater transferring the data sent from the transmitter, the receiver receiving the data sent from the repeater,

• wherein the transmitter is coupled to the repeater, which receives the data sent from the transmitter, by a first transmission path,
• wherein the repeater, which sends the data to the receiver, is coupled to the receiver by a second transmission path,
• wherein the first transmission path is configured with a first number of transmission lanes bundled together,
• wherein the second transmission path is configured with a second number of transmission lanes bundled together,
• wherein the transmitter, the repeater and the receiver have a number of virtual lanes that can be multiplexed into the first number of transmission lanes and the second number of transmission lanes, and
• wherein the receiver is configured to:
• receive multiplexed data streams from the transmission lanes included in the second transmission path;
• demultiplex the received data streams into as many data streams as the number of the useable virtual lanes based on useable lane information including information about the usable virtual lanes which is inserted in the received data streams;
• detect identifications for identifying the virtual lanes, which is inserted by the transmitter, from the received data streams;
• monitor failures of the transmission lanes of the second transmission path and the virtual lanes;
• detect a fault lane based on results of the failure monitoring of the transmission lanes;
• select the useable virtual lanes based on a result of the fault lane detection and failure notification information which is sent from the repeater and inserted in a data stream that is output from a virtual lane which is failed;
• send to the transmitter the useable lane information that includes information about the determined useable virtual lanes;
• correct a wrong order of arrival of the received data streams and a shift of reception point in the virtual lanes which are caused by a skew of the data streams between the transmission lanes based on the detected identifications;
• and
• restore the demultiplexed data streams into the transmission data.