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GB2367450A - Variable bit rate in circuit switch - Google Patents

Variable bit rate in circuit switch

Info

Publication number
GB2367450A
GB2367450A GB0200398A GB0200398A GB2367450A GB 2367450 A GB2367450 A GB 2367450A GB 0200398 A GB0200398 A GB 0200398A GB 0200398 A GB0200398 A GB 0200398A GB 2367450 A GB2367450 A GB 2367450A
Authority
GB
United Kingdom
Prior art keywords
bit rate
connection
variable bit
circuit switch
interworking unit
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
GB0200398A
Other versions
GB2367450B (en
GB0200398D0 (en
GB2367450A8 (en
Inventor
Erik Mikael Walles
Bengt Gunnar Larsson
Carl Staffan Alund
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB0200398D0 publication Critical patent/GB0200398D0/en
Publication of GB2367450A publication Critical patent/GB2367450A/en
Publication of GB2367450A8 publication Critical patent/GB2367450A8/en
Application granted granted Critical
Publication of GB2367450B publication Critical patent/GB2367450B/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
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • 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
    • H04L2012/5603—Access techniques
    • H04L2012/5604—Medium of transmission, e.g. fibre, cable, radio
    • H04L2012/5607—Radio
    • 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
    • H04L2012/5618—Bridges, gateways [GW] or interworking units [IWU]
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
    • H04L2012/5653—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL]
    • H04L2012/5656—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL] using the AAL2
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5663—Support of N-ISDN
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5665—Interaction of ATM with other protocols
    • 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
    • H04L2012/5672—Multiplexing, e.g. coding, scrambling
    • H04L2012/5674—Synchronisation, timing recovery or alignment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport
    • H04L2012/6421—Medium of transmission, e.g. fibre, cable, radio, satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport
    • H04L2012/6472—Internet

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The present invention present a telecommunication system comprising a circuit switch (1), through which variable bit rate traffic is sent utilising a circuit-switch connection (9). The connection (9) is established between an interworking unit (6) and a pooled functionality device (8) of the circuit switch (1), and may be of a narrow band, wideband or broadband type. Variable bit rate packets received in the interworking unit (6) are mapped to an internal format and sent through the connection (9). Any signalling messages are terminated and used for handling the connections (9) and, if the connection (9) is of a wideband or broadband type, reserving channels within the connection (9) for different calls or sessions. The variable bit rate traffic received at the pooled functionality device (8) is typically demultiplexed according to the channel number and synchronized, which transfers them into a constant bit rate fashion. Similarly, constant bit rate traffic may be packetized and sent over the connection (9) to the interworking unit (6) according to the internal variable bit rate format. ATM networks and Internet networks are two particularly suitable variable bit rate networks for such solutions.
GB0200398A 1999-07-19 2000-07-06 Variable bit rate in circuit switch Expired - Fee Related GB2367450B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9902738A SE9902738L (en) 1999-07-19 1999-07-19 Variable bitrate in circuit-switched selector
PCT/SE2000/001434 WO2001006718A1 (en) 1999-07-19 2000-07-06 Variable bit rate in circuit switch

Publications (4)

Publication Number Publication Date
GB0200398D0 GB0200398D0 (en) 2002-02-27
GB2367450A true GB2367450A (en) 2002-04-03
GB2367450A8 GB2367450A8 (en) 2002-04-10
GB2367450B GB2367450B (en) 2004-02-11

Family

ID=20416530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0200398A Expired - Fee Related GB2367450B (en) 1999-07-19 2000-07-06 Variable bit rate in circuit switch

Country Status (5)

Country Link
AU (1) AU6192700A (en)
DE (1) DE10084803B4 (en)
GB (1) GB2367450B (en)
SE (1) SE9902738L (en)
WO (1) WO2001006718A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10331111A1 (en) * 2003-07-04 2005-01-27 Teles Ag Informationstechnologien Method and telecommunications arrangement for transmitting data on different transmission paths in a communication process and transmission server for performing the method
DE10343458A1 (en) 2003-09-19 2005-05-12 Thomson Brandt Gmbh Method for processing data packets received via a first interface and device for carrying out the method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994011975A1 (en) * 1992-11-06 1994-05-26 At & T Corp. Establishing telecommunications call paths in broadband communication networks
US5623491A (en) * 1995-03-21 1997-04-22 Dsc Communications Corporation Device for adapting narrowband voice traffic of a local access network to allow transmission over a broadband asynchronous transfer mode network
US5920562A (en) * 1996-11-22 1999-07-06 Sprint Communications Co. L.P. Systems and methods for providing enhanced services for telecommunication call
US6018521A (en) * 1996-12-27 2000-01-25 Motorola, Inc. Network interface subsystem for use in an ATM communications system
US6023465A (en) * 1994-06-14 2000-02-08 Northern Telecom Limited Communications system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6115390A (en) * 1997-10-14 2000-09-05 Lucent Technologies, Inc. Bandwidth reservation and collision resolution method for multiple access communication networks where remote hosts send reservation requests to a base station for randomly chosen minislots
US6556573B1 (en) * 1998-06-05 2003-04-29 Nokia Telecommunications Oy Synchronization of ATM-based network system using variable bit rate ATM adaptation layer protocols

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994011975A1 (en) * 1992-11-06 1994-05-26 At & T Corp. Establishing telecommunications call paths in broadband communication networks
US6023465A (en) * 1994-06-14 2000-02-08 Northern Telecom Limited Communications system
US5623491A (en) * 1995-03-21 1997-04-22 Dsc Communications Corporation Device for adapting narrowband voice traffic of a local access network to allow transmission over a broadband asynchronous transfer mode network
US5920562A (en) * 1996-11-22 1999-07-06 Sprint Communications Co. L.P. Systems and methods for providing enhanced services for telecommunication call
US6018521A (en) * 1996-12-27 2000-01-25 Motorola, Inc. Network interface subsystem for use in an ATM communications system

Also Published As

Publication number Publication date
GB2367450B (en) 2004-02-11
DE10084803T1 (en) 2002-08-29
WO2001006718A1 (en) 2001-01-25
AU6192700A (en) 2001-02-05
GB0200398D0 (en) 2002-02-27
DE10084803B4 (en) 2011-03-03
SE9902738L (en) 2001-01-20
GB2367450A8 (en) 2002-04-10
SE9902738D0 (en) 1999-07-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20150706