WO2002060123A3 - Method and system for processing downstream packets of an optical network - Google Patents

Method and system for processing downstream packets of an optical network Download PDF

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Publication number
WO2002060123A3
WO2002060123A3 PCT/US2001/050361 US0150361W WO02060123A3 WO 2002060123 A3 WO2002060123 A3 WO 2002060123A3 US 0150361 W US0150361 W US 0150361W WO 02060123 A3 WO02060123 A3 WO 02060123A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical network
communication traffic
network
transceiver node
downstream
Prior art date
Application number
PCT/US2001/050361
Other languages
French (fr)
Other versions
WO2002060123A2 (en
Inventor
Stephen A Thomas
Kevin Bourg
Joe Caltagirone
Patrick W Quinn
James O Farmer
John J Kenny
Thomas A Tighe
Paul F Whittlesey
Emmanuel A Vella
Original Assignee
Wave7 Optics 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
Priority claimed from US09/899,410 external-priority patent/US6973271B2/en
Application filed by Wave7 Optics Inc filed Critical Wave7 Optics Inc
Priority to EP01997131A priority Critical patent/EP1366583A2/en
Priority to JP2002560337A priority patent/JP2004529528A/en
Priority to BR0114981-4A priority patent/BR0114981A/en
Priority to KR10-2003-7005857A priority patent/KR20030064775A/en
Priority to CA002426831A priority patent/CA2426831A1/en
Priority to MXPA03003656A priority patent/MXPA03003656A/en
Publication of WO2002060123A2 publication Critical patent/WO2002060123A2/en
Publication of WO2002060123A3 publication Critical patent/WO2002060123A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • 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
    • H04J14/0228—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths
    • H04J14/023—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths in WDM passive optical networks [WDM-PON]
    • H04J14/0232—Wavelength allocation for communications one-to-all, e.g. broadcasting wavelengths in WDM passive optical networks [WDM-PON] for downstream transmission
    • 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
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
    • H04J14/0247—Sharing one wavelength for at least a group of ONUs
    • 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
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
    • H04J14/0252—Sharing one wavelength for at least a group of ONUs, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
    • 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
    • H04J14/0282—WDM tree architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/22—Adaptations for optical transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0226—Fixed carrier allocation, e.g. according to service
    • 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
    • H04J14/0286—WDM hierarchical architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0071—Provisions for the electrical-optical layer interface

Abstract

Unlike the conventional art which polices data at the entry points of a network, a transceiver node can police or monitor downstream bandwidths for quality of service at exit portions of an optical network. That is, the transceiver node can police downstream communication traffic near the outer edges of an optical network that are physically close to the subscribers of the optical network. In this way, a network provider can control the volume or content (or both) of downstream communications that are received by subscribers of the optical network. In addition to controlling the volume of communications that can be received by a subscriber, the transceiver node employs a plurality of priority assignment values for communication traffic. Some priority assignment values are part of a weighted random early discard algorithm that enables an output buffer to determine whether to drop data packets that are destined for a particular subscriber. In one exemplary embodiment, a weighted random early discard (WRED) priority value can be assigned according to the type of communication traffic supported by a packet.
PCT/US2001/050361 2000-10-26 2001-10-26 Method and system for processing downstream packets of an optical network WO2002060123A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP01997131A EP1366583A2 (en) 2000-10-26 2001-10-26 Method and system for processing downstream packets of an optical network
JP2002560337A JP2004529528A (en) 2000-10-26 2001-10-26 Method and system for processing downstream packets of an optical network
BR0114981-4A BR0114981A (en) 2000-10-26 2001-10-26 Method and system for processing downstream packets from an optical network
KR10-2003-7005857A KR20030064775A (en) 2000-10-26 2001-10-26 Method and system for processing downstream packets of an optical network
CA002426831A CA2426831A1 (en) 2000-10-26 2001-10-26 Method and system for processing downstream packets of an optical network
MXPA03003656A MXPA03003656A (en) 2000-10-26 2001-10-26 Method and system for processing downstream packets of an optical network.

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US24405200P 2000-10-26 2000-10-26
US60/244,052 2000-10-26
US24397800P 2000-10-27 2000-10-27
US60/243,978 2000-10-27
US25883700P 2000-12-28 2000-12-28
US60/258,837 2000-12-28
US28911201P 2001-05-08 2001-05-08
US60/289,112 2001-05-08
US09/899,410 US6973271B2 (en) 2000-10-04 2001-07-05 System and method for communicating optical signals between a data service provider and subscribers
US09/899,410 2001-07-05

Publications (2)

Publication Number Publication Date
WO2002060123A2 WO2002060123A2 (en) 2002-08-01
WO2002060123A3 true WO2002060123A3 (en) 2003-07-10

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2001/051350 WO2003001737A2 (en) 2000-10-26 2001-10-26 Method and system for processing upstream packets of an optical network
PCT/US2001/050361 WO2002060123A2 (en) 2000-10-26 2001-10-26 Method and system for processing downstream packets of an optical network

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2001/051350 WO2003001737A2 (en) 2000-10-26 2001-10-26 Method and system for processing upstream packets of an optical network

Country Status (9)

Country Link
US (2) US7197244B2 (en)
EP (2) EP1366583A2 (en)
JP (2) JP2004529528A (en)
KR (2) KR20030060925A (en)
CN (2) CN1547814A (en)
BR (2) BR0114981A (en)
CA (2) CA2426813A1 (en)
MX (2) MXPA03003655A (en)
WO (2) WO2003001737A2 (en)

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