Mechanism for traffic privacy in reconfigurable add/drop multiplexer based submarine networks
First Claim
1. A method for data transport comprising:
- providing a network including at least one branch terminal and at least one trunk terminal, wherein a branching unit is present at an intersect between the at least one trunk terminal and the at least one branch terminal, the branching unit including a reconfigurable add/drop multiplexers (ROADM) sub unit and at least one attenuator;
sending a signal from a sending trunk terminal of the at least one trunk terminal to the branching unit, the signal including a branch traffic component and a trunk traffic component;
removing the trunk traffic portion from the signal with the reconfigurable add/drop multiplexers (ROADM) sub unit filter, and attenuating the trunk traffic portion with the attenuator at the branching unit; and
combining an attenuated trunk traffic portion with the signal being sent to the branch terminal from the sending terminal so that the trunk traffic portion of the signal that is combined with the attenuated trunk traffic portion of the signal cannot be detected by the branch terminal.
3 Assignments
0 Petitions
Accused Products
Abstract
A method for data transport that includes providing a branch terminal between a first and second trunk terminal, wherein a branching unit is present at an intersect between the first and second trunk terminal and the branch terminal. The branching unit includes a reconfigurable add/drop multiplexers (ROADM) at least one attenuator. A signal is sent from a second terminal of the first and second trunk terminal to the branding unit. The signal may include a branch traffic component trunk traffic component. The branching unit includes at least one attenuator for attenuating the trunk traffic component so that the trunk traffic component of the signal cannot be detected at the branch terminal.
-
Citations
20 Claims
-
1. A method for data transport comprising:
-
providing a network including at least one branch terminal and at least one trunk terminal, wherein a branching unit is present at an intersect between the at least one trunk terminal and the at least one branch terminal, the branching unit including a reconfigurable add/drop multiplexers (ROADM) sub unit and at least one attenuator; sending a signal from a sending trunk terminal of the at least one trunk terminal to the branching unit, the signal including a branch traffic component and a trunk traffic component; removing the trunk traffic portion from the signal with the reconfigurable add/drop multiplexers (ROADM) sub unit filter, and attenuating the trunk traffic portion with the attenuator at the branching unit; and combining an attenuated trunk traffic portion with the signal being sent to the branch terminal from the sending terminal so that the trunk traffic portion of the signal that is combined with the attenuated trunk traffic portion of the signal cannot be detected by the branch terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A branch unit for use with a submarine network comprising:
-
an interface for positioning the branch unit between at least a first trunk terminal and a second trunk terminal, wherein the interface is connected to at least one branch terminal; at least one reconfigurable add/drop multiplexers (ROADM) sub unit filter for removing a trunk traffic portion from a signal received by the branch unit from one of the first and second trunk terminals, the signal including said trunk traffic portion and a branch traffic portion; an attenuator for attenuating the trunk traffic portion of the signal that is removed from the signal by the at least one reconfigurable add/drop multiplexers (ROADM) sub unit filter; and a coupler for combining an attenuated trunk traffic portion produced by the attenuator with the signal including said trunk traffic portion and said branch traffic portion before transmitting said signal from said branch unit to said branch station, wherein said trunk traffic portion of the signal that is combined with the attenuated trunk traffic portion of the signal cannot be detected by the branch terminal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
-
Specification