The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2001
Filed:
Jun. 30, 1998
Murat Alanyali, Bilkent, TR;
Ender Ayanoglu, Red Bank, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
Methods for provisioning optical communications networks employing wavelength division multiplexing (WDM) technology provide for routing and wave-length assignment of a set of connection requests. Avoiding many of the pitfalls of exactly optimum solutions, the present heuristic methods provide much shorter execution times while providing near-optimum performance. Adaptations of the basic solutions provide design of restorable networks capable of handling a specified set of failures. This approach advantageously is based on considering all failures simultaneously, and performs better than solutions in which independent designs are developed for each failure. Networks designed using these methods store configuration information for primary network configurations and for one or more restoration networks. Upon startup or upon network failures, predetermined configuration directions are applied to wavelength selective cross-connects (WSXC) at each network node to establish (or reestablish) desired network node interconnections.