CA2235083A1 - Transparent transport - Google Patents

Transparent transport

Info

Publication number
CA2235083A1
CA2235083A1 CA002235083A CA2235083A CA2235083A1 CA 2235083 A1 CA2235083 A1 CA 2235083A1 CA 002235083 A CA002235083 A CA 002235083A CA 2235083 A CA2235083 A CA 2235083A CA 2235083 A1 CA2235083 A1 CA 2235083A1
Authority
CA
Canada
Prior art keywords
supercarrier
signal
oam
span
bit rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002235083A
Other languages
French (fr)
Other versions
CA2235083C (en
Inventor
David Wright Martin
Mohammed Ismael Tatar
Alan Glen Solheim
Timothy James Armstrong
Mark Stephen Wight
Ronald J. Gagnon
David John Nicholson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ciena Luxembourg SARL
Original Assignee
Northern Telecom Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25300859&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2235083(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of CA2235083A1 publication Critical patent/CA2235083A1/en
Application granted granted Critical
Publication of CA2235083C publication Critical patent/CA2235083C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0293—Optical channel protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
    • H04J3/085—Intermediate station arrangements, e.g. for branching, for tapping-off for ring networks, e.g. SDH/SONET rings, self-healing rings, meashed SDH/SONET networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0283—WDM ring architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0057—Operations, administration and maintenance [OAM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0089—Multiplexing, e.g. coding, scrambling, SONET

Abstract

A configuration for a transport node of a telecommunication system comprises a pair of transparent mux/ demuxs provided at two sites and connected over a high rate span. The T-Muxs provide continuity of all tribs and maintain a lower bit rate linear or ring system through the higher bit rate span. The lower bit rate linear or ring system operates as if it were directly connected without the higher bit rate midsection. For the forward direction of the traffic, the T-Mux comprises a multi-channel receiver for receiving a thetrib signals and providing for each trib signal a trib data signal and a trib OAM&P signal. The data signals are multiplexed into a supercarrier data signal and the OAM&P signals are processed to generate a supercarrier OAM&P signal. A supercarrier transmitter maps the supercarrier data signal and the supercarrier OAM&P signal into a supercarrier signal and transmits same over the high rate span. Reverse operations are effected for the reverse direction of traffic. With this invention, an entire ring system does not have to be upgraded to a higher line rate due to fiber exhaust on a single span. The invention is particularly applicable to SONET OC48/OC-12/OC-3 linear and ring networks and the high rate span could be an OC-192 line.
CA002235083A 1997-04-24 1998-04-17 Transparent transport Expired - Lifetime CA2235083C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/847,529 1997-04-24
US08/847,529 US6298038B1 (en) 1997-04-24 1997-04-24 Transparent transport

Publications (2)

Publication Number Publication Date
CA2235083A1 true CA2235083A1 (en) 1998-10-24
CA2235083C CA2235083C (en) 2002-12-31

Family

ID=25300859

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002235083A Expired - Lifetime CA2235083C (en) 1997-04-24 1998-04-17 Transparent transport

Country Status (5)

Country Link
US (1) US6298038B1 (en)
EP (1) EP0874487B1 (en)
JP (1) JPH10341214A (en)
CA (1) CA2235083C (en)
DE (1) DE69834861T2 (en)

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US6128330A (en) 1998-11-24 2000-10-03 Linex Technology, Inc. Efficient shadow reduction antenna system for spread spectrum
GB9828367D0 (en) * 1998-12-22 1999-02-17 Northern Telecom Ltd Method and apparatus for communicating information
JP2000269912A (en) * 1999-03-18 2000-09-29 Fujitsu Ltd Method and device for transmitting low-speed sdh signal by high-speed sdh signal
WO2001031818A1 (en) * 1999-10-28 2001-05-03 Fujitsu Limited Transmission system
US6616348B1 (en) * 2000-01-28 2003-09-09 Ciena Corporation Method and optical communication network for bidirectional protection protocols
US7308006B1 (en) * 2000-02-11 2007-12-11 Lucent Technologies Inc. Propagation and detection of faults in a multiplexed communication system
JP3564699B2 (en) * 2000-04-13 2004-09-15 日本電気株式会社 Optical transmission system and optical signal transmission method
US6870860B1 (en) * 2000-04-19 2005-03-22 Ciena Corporation Semi-transparent time division multiplexer/demultiplexer
US6385209B1 (en) * 2000-06-14 2002-05-07 Pluris, Inc. Method and apparatus for mapping data packets between lines of differing capacity at a router interface
US6801548B1 (en) * 2000-06-15 2004-10-05 Cisco Technology, Inc. Channel ordering for communication signals split for matrix switching
US6973041B1 (en) * 2000-06-15 2005-12-06 Cisco Technology, Inc. Path AIS insertion for concatenated payloads across multiple processors
US6822975B1 (en) * 2000-09-08 2004-11-23 Lucent Technologies Circuitry for mixed-rate optical communication networks
US7289433B1 (en) * 2000-10-24 2007-10-30 Nortel Networks Limited Method and system for providing robust connections in networking applications
US6879559B1 (en) * 2000-10-31 2005-04-12 Chiaro Networks, Ltd. Router line card protection using one-for-N redundancy
DE10056220B4 (en) * 2000-11-13 2005-04-28 Siemens Ag Method for transmitting a data signal
US6885632B1 (en) * 2000-12-21 2005-04-26 Nortel Networks Limited Method and system for signal degrade (SD) information passthrough in T-Mux systems
DE60203173T2 (en) * 2001-04-26 2006-04-20 International Business Machines Corp. METHOD AND DEVICE WITH INPUT / FRAME ADAPTER OF MULTIPLE CHANNELS OF LOW SPEEDS IN A SINGLE HIGH SPEED SDH / SONET CHANNEL
US7020457B2 (en) * 2001-05-31 2006-03-28 Orative Corporation System and method for proxy-enabling a wireless device to an existing IP-based service
US20020180798A1 (en) * 2001-05-31 2002-12-05 Poor Graham V. System and method for extending a wireless device platform to multiple applications
US7161961B2 (en) * 2001-06-13 2007-01-09 International Business Machines Corporation STM-1 to STM-64 SDH/SONET framer with data multiplexing from a series of configurable I/O ports
US7076163B2 (en) 2002-03-27 2006-07-11 Fujitsu Limited Method and system for testing during operation of an open ring optical network
US20030185248A1 (en) * 2002-03-27 2003-10-02 Adc Telecommunications Israel Ltd. Simplified bandwidth handling for SDH/SONET access rings
US7231148B2 (en) * 2002-03-28 2007-06-12 Fujitsu Limited Flexible open ring optical network and method
US7116905B2 (en) 2002-03-27 2006-10-03 Fujitsu Limited Method and system for control signaling in an open ring optical network
US6842562B2 (en) * 2002-05-30 2005-01-11 Fujitsu Network Communications, Inc. Optical add/drop node and method
US20040028411A1 (en) * 2002-08-07 2004-02-12 Ses-Americom, Incorporated System and method for transmitting high-bandwidth signals over a satellite communications system
US20040027384A1 (en) * 2002-08-12 2004-02-12 Gilbert Levesque End-to-end tracing of wavelength parameters in a wavelength division multiplexing span of a fiber optic network
US9008130B2 (en) * 2003-08-15 2015-04-14 Adc Dsl Systems, Inc. Management of units housed in subtended equipment shelves
US7450851B2 (en) * 2004-08-27 2008-11-11 Fujitsu Limited System and method for modularly scalable architecture for optical networks
US7907966B1 (en) 2005-07-19 2011-03-15 Aol Inc. System and method for cross-platform applications on a wireless phone
US7983164B2 (en) * 2006-12-01 2011-07-19 Electronics And Telecommunications Research Institute Apparatus and method for merging internet traffic mirrored from multiple links
US8078051B2 (en) * 2006-12-22 2011-12-13 Verizon Patent And Licensing Inc. Method and system for a secure bi-directional line switched ring
US8803672B2 (en) * 2007-05-15 2014-08-12 Sirius Xm Radio Inc. Vehicle message addressing
JP4866942B2 (en) * 2009-07-09 2012-02-01 富士通テレコムネットワークス株式会社 Transmission device, transmission control method, and OSC processing device

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US5841760A (en) * 1997-04-24 1998-11-24 Northern Telecom Limited Transparent multiplexer/demultiplexer

Also Published As

Publication number Publication date
CA2235083C (en) 2002-12-31
DE69834861T2 (en) 2006-11-16
EP0874487B1 (en) 2006-06-14
EP0874487A3 (en) 2002-10-23
US6298038B1 (en) 2001-10-02
EP0874487A2 (en) 1998-10-28
JPH10341214A (en) 1998-12-22
DE69834861D1 (en) 2006-07-27

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Effective date: 20180417