Patent ID: 9537603
Date: 2017-01-03
CPC Classifications: H04J,H04L,H04Q

Claim:
1. A channel establishment method, comprising: establishing a signal channel between a third node and a fourth node, wherein the third node is a source node of the signal channel, the fourth node is a destination node of the signal channel, and the signal channel passes a frequency slot matrix of one or more intermediate nodes between the third node and the fourth node and a traffic engineering link between any two nodes; and allocating frequency spectrum to the signal channel from available frequency spectrum of the traffic engineering link, wherein the frequency spectrum allocated comprises a plurality of split 50 GHz frequency spectrums which bear one optical channel and each of which only comprises a single optical carrier, wherein the frequency spectrum allocated is one frequency slot which belongs to an optical fiber, and the optical fiber supports a plurality of frequency slots each of which is occupied by one media channel.