Optical ring network with selective signal regeneration and...

Details Optical ring network with selective signal regeneration and... Optical ring network with selective signal regeneration and...

2008-01-22

2008-01-22

Bello, Agustin (Department: 2613)

Optical communications

Multiplex

Optical local area network

C398S062000, C398S175000, C398S083000

Reexamination Certificate

active

07321729

ABSTRACT:
An optical network includes an optical ring having a plurality of subnets. The subnets each include one or more add/drop nodes that are coupled to the optical ring and that passively add and drop traffic to and from the optical ring in one or more wavelengths. The optical network also includes a plurality of gateway nodes that are each coupled to the optical ring at a boundary between neighboring subnets. Each gateway node forwards a first copy of a received optical signal to a multiplexer/demultiplexer unit of the gateway node, which selectively forwards or terminates the traffic in each wavelength of the first copy. The gateway nodes also forward a second copy of the received optical signal to a regeneration element. The gateway nodes selectively forward or terminate the traffic in each wavelength of the first copy at the multiplexer/demultiplexer unit. Moreover the gateway nodes selectively perform one of the following on the traffic in each wavelength of the second copy at the regeneration element: terminate the traffic, forward the traffic after regenerating the traffic, or forward the traffic after regenerating and converting the wavelength of the traffic.

REFERENCES:
patent: 5179548 (1993-01-01), Sandesara
patent: 5327427 (1994-07-01), Sandesara
patent: 5414548 (1995-05-01), Tachikawa et al.
patent: 5576875 (1996-11-01), Chawki et al.
patent: 5615036 (1997-03-01), Emura
patent: 5771112 (1998-06-01), Hamel et al.
patent: 5774244 (1998-06-01), Tandon et al.
patent: 5778118 (1998-07-01), Sridhar
patent: 5903371 (1999-05-01), Arecco et al.
patent: 5930016 (1999-07-01), Brorson et al.
patent: 6097696 (2000-08-01), Doverspike
patent: 6122096 (2000-09-01), Fatehi
patent: 6137608 (2000-10-01), White
patent: 6160648 (2000-12-01), Öberg et al.
patent: 6192173 (2001-02-01), Solheim et al.
patent: 6236498 (2001-05-01), Freeman et al.
patent: 6295146 (2001-09-01), Nathan et al.
patent: 6310994 (2001-10-01), Jones et al.
patent: 6331906 (2001-12-01), Sharma et al.
patent: 6344911 (2002-02-01), Dailey, Jr. et al.
patent: 6351582 (2002-02-01), Dyket et al.
patent: 6400859 (2002-06-01), de Boer et al.
patent: 6426817 (2002-07-01), Tomita
patent: 6456406 (2002-09-01), Arecco et al.
patent: 6456407 (2002-09-01), Tammela et al.
patent: 6486988 (2002-11-01), Lewis et al.
patent: 6525852 (2003-02-01), Egnell
patent: 6580549 (2003-06-01), Kinoshita
patent: 6590681 (2003-07-01), Egnell et al.
patent: 6616349 (2003-09-01), Li et al.
patent: 6631018 (2003-10-01), Milton et al.
patent: 6658013 (2003-12-01), de Boer et al.
patent: 6701085 (2004-03-01), Muller
patent: 6895184 (2005-05-01), Way
patent: 2001/0015836 (2001-08-01), Kim et al.
patent: 2001/0040710 (2001-11-01), Sharratt et al.
patent: 2001/0050790 (2001-12-01), Graves et al.
patent: 2002/0003639 (2002-01-01), Arecco et al.
patent: 2002/0030869 (2002-03-01), Okazaki et al.
patent: 2002/0044315 (2002-04-01), Sugawara et al.
patent: 2002/0067523 (2002-06-01), Way
patent: 2002/0101633 (2002-08-01), Onaka et al.
patent: 2002/0126334 (2002-09-01), Milton et al.
patent: 2002/0131118 (2002-09-01), Chiaroni et al.
patent: 2002/0145779 (2002-10-01), Strasser et al.
patent: 2002/0149817 (2002-10-01), Kiliccote et al.
patent: 2002/0186439 (2002-12-01), Buabbud et al.
patent: 2002/0191898 (2002-12-01), Evans et al.
patent: 2002/0196491 (2002-12-01), Deng et al.
patent: 2003/0170020 (2003-09-01), Chaudhuri et al.
patent: 2004/0208575 (2004-10-01), Takegushi et al.
patent: 2005/0111495 (2005-05-01), Gumaste et al.
patent: 0 677 935 (1995-04-01), None
patent: 0 668 674 (1995-08-01), None
patent: 0 716 521 (1996-06-01), None
patent: 0 907 266 (1999-04-01), None
patent: 1 161 014 (2001-12-01), None
patent: 1 265 451 (2002-12-01), None
patent: 1 564 933 (2005-08-01), None
patent: 2 359 433 (2001-08-01), None
patent: EP 1 265 451 (2002-11-01), None
patent: 402141133 (1990-05-01), None
patent: WO 96/32787 (1996-10-01), None
patent: WO 98/52314 (1998-11-01), None
patent: WO 99/03231 (1999-01-01), None
patent: WO 99/65164 (1999-12-01), None
patent: WO 03/104849 (2003-12-01), None
patent: WO 03/104849 (2003-12-01), None
patent: WO 2004/107617 (2004-12-01), None
Benefits of Optical Subnets in WDM Ring Networks, ICON 2002, World Scientific Nov. 14, 2002 to Gumaste et al.
Communication from the European Patent Office, European Search Report for Application No. EP 04 02 6005, May 3, 2006, 3 pages.
Gumaste et al., “Benefits of Optical Subnets in WDM Ring Networks,” First International Conference on Optical Communications and Networks, Nov. 11-14, 2002, World Scientific Singapore, p. 99-103.
Communication from the European Patent Office, European Search Report for Application No. EP 05 01 3846, Oct. 18, 2005, 4 pages.
Communication from the European Patent Office, European Search Report for Application No. EP 05 00 1571, Jun. 17, 2005, 3 pages.
Notification of Transmittal of the International Search Report or the Declaration (PCT Rule 44.1) mailed Oct. 28, 2004 (5 pages) re International Application No. PCT/US 2004/016352.
Kinoshita et al., “Flexible Twin Open Ring Metro WDM Network,” OECC, pp. 713-714, Oct. 2003.
Tian et al., “OUPSR Protected Flexible Metro WDM Network,” ECOC, pp. 826-827, 2003.
Boskovic et al., “Broadcast and Select OADM Nodes Application and Performance Trade-offs,” OFC, pp. 158-159, 2002.
Kinoshita et al. “Flexible Metro WDM Network with Photonic Domains”, Fujitsu Laboratories of America, Inc., 3 pages, Feb. 24-26, 2004.
Suzuki et al., “Prototype of 12.5GHz-Spaced Tapped-Type OADM for DWDM Metro Ring Networks,” ECOC-IOOC Proceedings—vol. 4, pp. 902-903, Sep. 21-25, 2003.
Wolde, J., et al., “Optical Ethernet Metro Access Network Protype: Implementation and Results,” ECOC-IOOC 2003, 3 pages, Sep. 21-25, 2003.
Toba, H., et al., “Demonstration of Optical FDM Based Self-Healing Ring Network Employing Arrayed-Waveguide-Granting ADM Filters and EDFAs,” NTT Transmission Systrems Laboratories, pp. 263-266, Sep. 24, 1994.
Notification of Transmittal of the International Search Report or the Declaration (PCT 44.1) mailed Mar. 17, 2004 (9 pages) re International Application No. PCT/US 03/16193, Mar. 17, 2004.
Chlamtac et al., “Lightpath Communications: An Approach to High Bandwidth Optical WAN's,”IEEE Transactions on Communications, vol. 40, No. 7, Jul. 1992, 12 pages.
Narula-Tam et al., “Efficient Routing and Wavelength Assignment for Reconfigurable WDM Networks,”IEEE Journal on Selected Areas in Communications, vol. 20, No. 1, Jan. 2002, 14 pages.
Grenfeldt, “ERION-Ericsson optical networking using WDM technology,” Ericsson Review No. 3, pp. 132-137, 1998.
Ashmead, “ROADMap for the Metro Market,” Fiberoptic Product News, 3 pages (36, 38, and 40), Oct. 2001.
Batchellor, “Optical Networking the Ericsson Way,” Ericsson Limited, Business Unit Transport and Cable Networks, pp. 1-4, Feb. 22, 2002.
Bacque, B. et al., “R-OADM Architecture—Now you can Control the Light,” Tropic Networks, pp. 1-11, 2003.
U.S. Appl. No. 10/108,734, entitled “Method and System for Control Signaling in an Open Ring Optical Network,” filed Mar. 27, 2002.
U.S. Appl. No. 10/108,741, entitled “Method and System for Testing During Operation of an Open Ring Optical Network,” filed Mar. 27, 2002.
Takeguchi et al., Bifurcated Traffic and Channel Assignment (BITCA) to Interconnect Metro Rings, Tuesday Morning, OFC 2002, Mar. 19, 2002, pp. 39-41, Mar. 19, 2002.

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