Patent ID: 8885674
Filing Date: 2014-11-11
Classification: H04J,H04L

Abstract:
1. A method for determining the assignment of subsignals transmitted by inverse multiplexing on an Optical Transport Network (OTN) to the transmission links carrying said subsignals, the method comprising: (a) dividing a digital transmission signal to be transmitted into a certain number M of subsignals, assigning each subsignal to a respective transmission link at a transmitting end of the OTN, and transmitting the assigned subsignals over the respective transmission links to a receiving end of the assigned transmission link; (b) assembling and synchronizing the subsignals into a digital reception signal on the receiving ends of the transmission links; (c) after assembling and synchronizing the subsignals, beginning a link detection process by interrupting the signal transmitted via at least one transmission link; (d) during the link detection process in the digital reception signal, detecting on the receiving end which subsignal or subsignals are still contained in the digital reception signal while the at least one transmission link is interrupted, or which subsignal or subsignals are no longer contained in the digital reception signal, based on one or more expected attributes, thereby identifying which subsignal or subsignals were transmitted on the at least one interrupted transmission link; and (e) carrying out steps (c) and (d) for different individual transmission links or different combinations of several transmission links as many times as required for obtaining sufficient information in order to determine which subsignal is transmitted via the respective transmission link for a predefined transmission link.