CA2039999A1 - Network termination enabling relief of call congestion in an exchanger - Google Patents

Network termination enabling relief of call congestion in an exchanger

Info

Publication number
CA2039999A1
CA2039999A1 CA2039999A CA2039999A CA2039999A1 CA 2039999 A1 CA2039999 A1 CA 2039999A1 CA 2039999 A CA2039999 A CA 2039999A CA 2039999 A CA2039999 A CA 2039999A CA 2039999 A1 CA2039999 A1 CA 2039999A1
Authority
CA
Canada
Prior art keywords
exchanger
network termination
unusable
sdh frame
call congestion
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
CA2039999A
Other languages
French (fr)
Other versions
CA2039999C (en
Inventor
Ryoichi Ishibashi
Toshiyuki Yamamoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of CA2039999A1 publication Critical patent/CA2039999A1/en
Application granted granted Critical
Publication of CA2039999C publication Critical patent/CA2039999C/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
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L12/5602—Bandwidth control in ATM Networks, e.g. leaky bucket
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5614—User Network Interface
    • H04L2012/5615—Network termination, e.g. NT1, NT2, PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/563—Signalling, e.g. protocols, reference model
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5632—Bandwidth allocation
    • H04L2012/5635—Backpressure, e.g. for ABR

Abstract

NETWORK TERMINATION ENABLING RELIEF OF
CALL CONGESTION IN AN EXCHANGER
ABSTRACT OF THE DISCLOSURE

In a network termination connected to an exchanger and a plurality of terminal adaptors, and enabling relief of call congestion in an exchanger, the network termination includes: a reception port for receiving a reduction rate indicated by a congestion information area in a SDH frame input from the exchanger; a SDH
frame transmission unit for transferring the SDH frame including a plurality of ATM cells, each ATM cell having a header field and an information field, and the header field having a busy bit field; an unusable cell preparation unit operatively connected to the SDH frame transmission unit for generating the ATM cell train including the unusable cells defined based on the reduction rate from the exchanger; and a transmission port operatively connected to the unusable cell preparation unit for transferring the ATM cell train including the unusable cells to the end terminals.
CA002039999A 1990-04-10 1991-04-08 Network termination enabling relief of call congestion in an exchanger Expired - Fee Related CA2039999C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9440190A JP2789777B2 (en) 1990-04-10 1990-04-10 Congestion alleviation method
JP2-094401 1990-04-10

Publications (2)

Publication Number Publication Date
CA2039999A1 true CA2039999A1 (en) 1991-10-11
CA2039999C CA2039999C (en) 1994-06-21

Family

ID=14109234

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002039999A Expired - Fee Related CA2039999C (en) 1990-04-10 1991-04-08 Network termination enabling relief of call congestion in an exchanger

Country Status (6)

Country Link
US (1) US5231630A (en)
EP (1) EP0451817B1 (en)
JP (1) JP2789777B2 (en)
AU (1) AU625147B2 (en)
CA (1) CA2039999C (en)
DE (1) DE69120848D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2100797B1 (en) * 1994-04-11 1997-12-01 Telefonica Nacional Espana Co NETWORK TERMINATOR WITH ASYNCHRONOUS TRANSFER MODE.
US5583861A (en) * 1994-04-28 1996-12-10 Integrated Telecom Technology ATM switching element and method having independently accessible cell memories
JPH08307420A (en) * 1995-03-03 1996-11-22 Fujitsu Ltd Congestion control system for cell exchange
US5790806A (en) * 1996-04-03 1998-08-04 Scientific-Atlanta, Inc. Cable data network architecture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES462307A1 (en) * 1977-09-13 1978-05-16 Standard Electrica Sa Procedure for control of processor overload
WO1986003639A1 (en) * 1984-12-03 1986-06-19 The University Of Western Australia Queueing protocol
US4677616A (en) * 1985-09-11 1987-06-30 At&T Company Flow control scheme for a switching network
CA1309519C (en) * 1987-03-17 1992-10-27 Antonio Cantoni Transfer of messages in a multiplexed system
JP2714809B2 (en) * 1988-04-25 1998-02-16 富士通株式会社 Switch and congestion control method
JPH0310543A (en) * 1989-06-08 1991-01-18 Fujitsu Ltd Subscriber system constitution system for broad band isdn

Also Published As

Publication number Publication date
CA2039999C (en) 1994-06-21
EP0451817A2 (en) 1991-10-16
AU625147B2 (en) 1992-07-02
AU7422091A (en) 1991-10-17
EP0451817B1 (en) 1996-07-17
US5231630A (en) 1993-07-27
EP0451817A3 (en) 1992-07-15
JP2789777B2 (en) 1998-08-20
DE69120848D1 (en) 1996-08-22
JPH03292026A (en) 1991-12-24

Similar Documents

Publication Publication Date Title
DE3344140C2 (en)
CA2049428A1 (en) Atm communication system
CA2056652A1 (en) Telephone subscriber accommodation system in a broadband network
EP0147865B1 (en) Digital exchange system
CA2068387A1 (en) Television signal and atm cell switching system
CA2215863A1 (en) Atm lan telephone system
MX9306775A (en) APPARATUS FOR INTERCONNECTION BETWEEN CALL SIGNALS AND BROAD TELECOMMUNICATION SIGNALS.
CA2264098A1 (en) Multimedia information communication system
CA2188788A1 (en) Facsimile transmission in a mobile communication system
CA2250811A1 (en) Combined minicell alignment and header protection method and apparatus
CA2257035A1 (en) Method and network component for switching low bit rate connections between input modules and output modules in a communication network
CA2190836A1 (en) Communications protocol for remote data generating stations
CA2148356A1 (en) Establishing Telecommunications Call Paths in Broadband Communication Networks
CN101313481B (en) Method and apparatus using back board service bus for service transmission
EP0255290B1 (en) Time-slot assigner multiplexer
AU646160B2 (en) A telecommunication method
JP2752522B2 (en) Flow control method in broadband ISDN
CA2039999A1 (en) Network termination enabling relief of call congestion in an exchanger
CA2108458A1 (en) Method of communication
US6084887A (en) Signaling protocol conversion system
ES2108171T3 (en) PROCEDURE FOR THE REPRESENTATION OF INDIVIDUAL SUBSCRIBER DATA WHEN SIGNAL SIGNALS AND INFORMATION SIGNALS ARE TRANSMITTED BETWEEN NARROWBAND NETWORKS AND ATM NETWORKS.
US6011797A (en) ATM communication device using interface signal of HIPPI
CA2177781A1 (en) Digital pb exchanger with multi-processor control system using asynchronous transfer mode
US5673258A (en) Method and apparatus for the enlargement of the reach of the transmission channel between functional groups of an ISDN-user interface
ES2113452T3 (en) PROCEDURE FOR THE TRANSMISSION OF SIGNALS AND INFORMATION SIGNALS BETWEEN TERMINALS OF DIGITAL NETWORK OF INTEGRATED SERVICES- (ISDN) OF DIFFERENT NETWORKS-ISDN WITH THE INCLUSION OF AN ASYNCHRONIC NETWORK- (ATM).

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20050408