CA2042164A1 - A communication network - Google Patents

A communication network

Info

Publication number
CA2042164A1
CA2042164A1 CA2042164A CA2042164A CA2042164A1 CA 2042164 A1 CA2042164 A1 CA 2042164A1 CA 2042164 A CA2042164 A CA 2042164A CA 2042164 A CA2042164 A CA 2042164A CA 2042164 A1 CA2042164 A1 CA 2042164A1
Authority
CA
Canada
Prior art keywords
niu
subnetwork
transmitter
tunable
nius
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
CA2042164A
Other languages
French (fr)
Other versions
CA2042164C (en
Inventor
Kai Y. Eng
Mark J. Karol
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
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
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2042164A1 publication Critical patent/CA2042164A1/en
Application granted granted Critical
Publication of CA2042164C publication Critical patent/CA2042164C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2801—Broadband local area networks
    • 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
    • H04J14/028—WDM bus architectures
    • 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

Abstract

A communications network comprising a plurality of "subnetworks"
multiplexed onto a single communications medium. A separate group of network interface units (NIUs) communicate on each predetermined "subnetwork", and each NIU also includes a tunable transmitter for transmitting data to NIUs of other subnetworks. Data from a user equipment is transmitted via the tunable transmitter if it is destined for an NIU from another subnetwork, and via a fixed transmitter if it is destined for an NIU on the same subnetwork. In one embodiment, fiber optics is utilized in order to provide a high speed network with tunable lasers. (FIG. 2).
CA002042164A 1990-08-02 1991-05-09 A communication network Expired - Fee Related CA2042164C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/561,852 US5101290A (en) 1990-08-02 1990-08-02 High-performance packet-switched wdm ring networks with tunable lasers
US561,852 1990-08-02

Publications (2)

Publication Number Publication Date
CA2042164A1 true CA2042164A1 (en) 1992-02-03
CA2042164C CA2042164C (en) 1996-09-03

Family

ID=24243749

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002042164A Expired - Fee Related CA2042164C (en) 1990-08-02 1991-05-09 A communication network

Country Status (4)

Country Link
US (1) US5101290A (en)
EP (1) EP0472296A1 (en)
JP (1) JPH04234244A (en)
CA (1) CA2042164C (en)

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US5517498A (en) * 1993-09-20 1996-05-14 International Business Machines Corporation Spatial reuse of bandwidth on a ring network
US5455699A (en) * 1993-12-21 1995-10-03 At&T Corp. Large capacity multi-access wavelength division multiplexing packet network
EP0689067A3 (en) * 1994-06-22 1997-04-09 Fujitsu Ltd Method of producing optical waveguide system, optical device and optical coupler employing the same, optical network and optical circuit board
US5854868A (en) * 1994-06-22 1998-12-29 Fujitsu Limited Optical device and light waveguide integrated circuit
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
JPH09153907A (en) * 1995-11-28 1997-06-10 Matsushita Electric Ind Co Ltd Bus type communication network
JPH09181774A (en) * 1995-12-23 1997-07-11 Nec Corp Optical switch device and optical switch control system
US6262822B1 (en) * 1998-05-13 2001-07-17 Jds Fitel Inc. Circuit for monitoring optical signals
US6111673A (en) 1998-07-17 2000-08-29 Telcordia Technologies, Inc. High-throughput, low-latency next generation internet networks using optical tag switching
US6580537B1 (en) 1998-07-17 2003-06-17 Regents Of The University Of California, The High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion
US6525850B1 (en) 1998-07-17 2003-02-25 The Regents Of The University Of California High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion
EP0989702A1 (en) * 1998-09-25 2000-03-29 Eolring International Local telecommunication network
US6271946B1 (en) * 1999-01-25 2001-08-07 Telcordia Technologies, Inc. Optical layer survivability and security system using optical label switching and high-speed optical header generation and detection
DE10190656D2 (en) * 2000-02-23 2003-02-20 Thinprint Gmbh Process for the transmission of data in networks via data lines
US6519062B1 (en) * 2000-02-29 2003-02-11 The Regents Of The University Of California Ultra-low latency multi-protocol optical routers for the next generation internet
US6757496B2 (en) 2001-01-30 2004-06-29 The Regents Of The University Of California Optical layer multicasting using a single sub-carrier header and an optical multicasting switch
US6757497B2 (en) 2001-01-30 2004-06-29 The Regents Of The University Of California Optical layer multicasting using a single sub-carrier header and a multicast switch with active header insertion via reflective single sideband optical processing
US6819666B2 (en) 2001-01-30 2004-11-16 The Regents Of The University Of California Optical layer multicasting using multiple sub-carrier headers with header detection, deletion, and insertion via reflective single sideband optical processing
US6873797B2 (en) 2001-01-30 2005-03-29 The Regents Of The University Of California Optical layer multicasting
US6850515B2 (en) 2001-01-30 2005-02-01 The Regents Of The University Of California Optical layer multicasting using a single sub-carrier header and a multicast switch with active header insertion via light circulation
US6768871B2 (en) 2001-01-30 2004-07-27 The Regents Of The University Of California Optical layer multicasting using a multicast switch to effect survivability and security
US6813276B2 (en) 2001-01-30 2004-11-02 The Regents Of The University Of California Optical layer multicasting using a single sub-carrier header with active header detection, deletion, and re-insertion via a circulating optical path
US6754450B2 (en) 2001-01-30 2004-06-22 The Regents Of The University Of California Optical layer multicasting using a single sub-carrier header with active header detection, deletion, and new header insertion via opto-electrical processing
US6850707B1 (en) 2001-01-30 2005-02-01 The Regents Of The University Of California Secure optical layer multicasting to effect survivability
WO2002080428A2 (en) * 2001-03-29 2002-10-10 Atoga Systems, Inc. Open ring architectures for optical wdm networks
SE524863C2 (en) * 2001-04-23 2004-10-12 Transmode Systems Ab Optical coarse wavelength division multiplexing system has multiple logical optical rings that form multiplexed ring structure, such that each ring links several nodes of ring structure
KR20030010969A (en) * 2001-07-28 2003-02-06 한국전자통신연구원 Wavelength Sharing ONIC of DWDM Token Ring Network and Method therefor
FR2829327A1 (en) * 2001-09-06 2003-03-07 Cit Alcatel NETWORK IN RING REALIZED FROM A DUAL OPTICAL BUS
WO2003032550A2 (en) * 2001-10-10 2003-04-17 Mcnc Research & Development Institute Optical-inclusive dwdm local area network
US7623543B2 (en) * 2004-03-19 2009-11-24 Fujitsu Limited Token-controlled data transmissions in communication networks
TWI381684B (en) * 2008-08-05 2013-01-01 Ind Tech Res Inst Apparatus and method for medium access control in an optical packet-switched network, and the network thereof
US11310571B2 (en) 2017-03-15 2022-04-19 Oracle International Corporation Optically switched network topology
US10602245B2 (en) 2017-04-04 2020-03-24 Oracle International Corporation Medium-access control technique for optically switched networks
US10205550B2 (en) * 2017-04-04 2019-02-12 Oracle International Corporation Scalable, low-latency medium-access control technique for optically switched networks

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JPS5647138A (en) * 1979-09-26 1981-04-28 Nippon Telegr & Teleph Corp <Ntt> Light loop network by light-wavelength-division multiplex transmission
JPS56114457A (en) * 1980-02-12 1981-09-09 Toshiba Corp Wavelength-multiplex ring bus system
US4675866A (en) * 1984-04-24 1987-06-23 Nec Corporation Broadband network systems
EP0214263A1 (en) * 1985-03-11 1987-03-18 BRITISH TELECOMMUNICATIONS public limited company Optical networks
US4759011A (en) * 1986-03-03 1988-07-19 Polaroid Corporation Intranetwork and internetwork optical communications system and method
GB2189961B (en) * 1986-04-30 1990-02-14 Stc Plc Optical transmission system
US4789980A (en) * 1986-08-18 1988-12-06 American Telephone & Telegraph Company, At&T Bell Laboratories Switching techniques for FDM communication systems
JPH0695677B2 (en) * 1988-11-16 1994-11-24 株式会社日立製作所 Network transmission system with multiple channels
US4955021A (en) * 1989-07-03 1990-09-04 At&T Bell Laboratories Efficient connection arrangements for multihop networks

Also Published As

Publication number Publication date
JPH04234244A (en) 1992-08-21
EP0472296A1 (en) 1992-02-26
CA2042164C (en) 1996-09-03
US5101290A (en) 1992-03-31

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