Method and system for channel count and power control in optical networks
AssigneeECI Telecom Ltd.
InventorsDavid Harris, Ilan Halevi
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Abstract
There is proposed a technique for counting channels at a node of a multi-channel optical network, where the node is connected to a following node and a preceding node by an optical communication line carrying a plurality of information optical channels. The technique comprises exchanging of information structures between the nodes, such that each of the information structures specifies particular optical information channels which are currently in use at a predetermined network section or node.
Claims20
A method for counting channels at a node of a multi-channel optical network, the node being connected to a following node and a preceding node by an optical communication line capable of carrying a plurality of information optical channels, the method comprising exchanging of information structures between the nodes, wherein each of the information structures specifying particular optical information channels in use at a network section;
- the method comprising steps of
- providing at the node:
- an information structure DRP indicating specific information optical channels to be dropped at said node, and an information structure ADD indicating specific information optical channels to be added at said node,
- obtaining an information structure RCV indicating specific information optical channels received from the preceding node, and
- forming an information structure FWD by using the information structures RCV, DRP and ADD, the FWD indicating specific information optical channels to be forwarded from said node to the following node, and thereby informative of the number of said channels (NOC),
- providing the following node with the information structure FWD serving as an RCV of the following node.
A system for counting channels at a node of a multi-channel optical network, the system being suitable for the node connected to either or both of a following node and a preceding node by an optical communication line carrying a plurality of information optical channels, the system being adapted to perform exchange of information structures between the nodes, wherein each of the information structures specifies particular optical information channels in use at a network section;
- the system comprising:
- memory means for obtaining and storing at the node information structures RCV, DRP and ADD, respectively specifying particular information optical channels being received at the node (RCV), dropped at the node (DRP) and added at the node (ADD),
- a processing unit at the node, capable of forming an information structure FWD using said stored information structures RCV, DRP and ADD, the FWD specifying particular information optical channels to be forwarded from the node, said information structure FWD being also indicative of the number of said channels (NOC).
Dependencies are inferred from the claim text.