Optical access network and its design method
AssigneeNTT, Inc.
InventorsTaku Yamane, Chihiro Kito, Shingo Ono
Life of this patent
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Abstract
The present disclosure provides an optical access network and a method for designing the same, in which a plurality of optical cable loops, in which optical cables are connected in a loop shape, are disposed between a communication station building and an optical termination position, and the optical cable loops are connected to each other.
Claims7
An optical access network that connects a communication station building and an optical termination position by optical cables, the optical access network comprising:
- a plurality of optical cable loops, in which the optical cables are connected in a loop shape, wherein:
- the optical cable loops are connected to each other;
- the optical cable loops connected to each other have two connection points laid on a common route;
- and
- an optical cable, laid on the common route to the other optical cable loops of the optical cable loops, is composed of an integrated loop cable obtained by integrating a plurality of optical cable loops.
A method for designing an optical access network, the method comprising:
- disposing a plurality of optical cable loops, in which optical cables are connected in a loop shape, between a communication station building and an optical termination position;
- and
- connecting the optical cable loops to each other, wherein each of the optical cable loops has a length that is a single failure section length making a failure rate or the number of failure in times (FITs) less than a determined value based on an optical cable type or a construction environment.
A method for designing an optical access network comprising:
- disposing a plurality of optical cable loops, in which optical cables are connected in a loop shape, between a communication station building and an optical termination position;
- and
- connecting the optical cable loops to each other, including:
- providing, on a common route, two connection points between the optical cable loops, in a section where the plurality of optical cable loops are laid on the common route;
- and
- widening a distance between the two connection points provided on the common route, within an allowable range on the common route.
Dependencies are inferred from the claim text.