CA2104754A1 - Multirate, Sonet-Ready, Switching Arrangement - Google Patents

Multirate, Sonet-Ready, Switching Arrangement

Info

Publication number
CA2104754A1
CA2104754A1 CA2104754A CA2104754A CA2104754A1 CA 2104754 A1 CA2104754 A1 CA 2104754A1 CA 2104754 A CA2104754 A CA 2104754A CA 2104754 A CA2104754 A CA 2104754A CA 2104754 A1 CA2104754 A1 CA 2104754A1
Authority
CA
Canada
Prior art keywords
data
time slots
memory
time
superframe
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
CA2104754A
Other languages
French (fr)
Other versions
CA2104754C (en
Inventor
Robert Lee Pawelski
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 CA2104754A1 publication Critical patent/CA2104754A1/en
Application granted granted Critical
Publication of CA2104754C publication Critical patent/CA2104754C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
    • 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

Abstract

A time-division multiplex switch (100) switches a hierarchy of data rates. It sets up higher-rate connections not as a plurality of individual lowest-rate connections but as one or more time slots in each one of a plurality of sequential frames (40, 50) that correspond to that higher rate in each superframe (30). A time-slot-interchange switching element (131, 141) of the switch utilizes a plurality of physically or logically distinct double-buffered data memories (301,302, 303) each corresponding to a different one of the superframe and different-size ones of the frames. Reading and writing of each of the data memories' buffers alternates with the corresponding one of the superframe and different-size frames; reading of a data memory's buffer immediately follows writing of that buffer. Information from all incoming time slots is written into each one of the data memories, but only information corresponding to the data rate of an individual data memory's corresponding frame size is read from that data memory into outgoing time slots. A control memory (305) maps memory locations of the data memories to output time slots. A corresponding control architecture in a switching element (1700) of a time-multiplexed switch (120) uses a control memory (1701) that maps input ports to time slots of an output port. <IMAGE>
CA002104754A 1992-10-20 1993-08-24 Multirate, sonet-ready, switching arrangement Expired - Fee Related CA2104754C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US963,976 1992-10-20
US07/963,976 US5351236A (en) 1992-10-20 1992-10-20 Multirate, sonet-ready, switching arrangement

Publications (2)

Publication Number Publication Date
CA2104754A1 true CA2104754A1 (en) 1994-04-21
CA2104754C CA2104754C (en) 1996-11-26

Family

ID=25507972

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002104754A Expired - Fee Related CA2104754C (en) 1992-10-20 1993-08-24 Multirate, sonet-ready, switching arrangement

Country Status (6)

Country Link
US (1) US5351236A (en)
EP (1) EP0594355B1 (en)
JP (1) JP2928070B2 (en)
AT (1) ATE190454T1 (en)
CA (1) CA2104754C (en)
DE (1) DE69328002T2 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05304686A (en) * 1991-04-30 1993-11-16 Nec Corp Cross connecting device
US5619497A (en) * 1994-12-22 1997-04-08 Emc Corporation Method and apparatus for reordering frames
US5696761A (en) * 1995-08-31 1997-12-09 Lucent Technologies Inc Method and apparatus for interfacing low speed access links to a high speed time multiplexed switch fabric
US5784369A (en) * 1996-01-26 1998-07-21 Telefonaktiebolaget Lm Ericsson Methods and system for switching time-division-multiplexed digital signals of different rates
US5894481A (en) * 1996-09-11 1999-04-13 Mcdata Corporation Fiber channel switch employing distributed queuing
US6031842A (en) * 1996-09-11 2000-02-29 Mcdata Corporation Low latency shared memory switch architecture
US6205154B1 (en) * 1997-04-15 2001-03-20 Lucent Technologies, Inc. Automatic path selection for fiber-optic transmission networks
DE19736447C2 (en) * 1997-08-21 2003-07-31 Ericsson Telefon Ab L M Device and method for switching input data frames
SE511919C2 (en) * 1997-08-28 1999-12-13 Ericsson Telefon Ab L M A general voter and a switching procedure
US6075785A (en) * 1997-12-16 2000-06-13 Lucent Technologies Inc. Apparatus and method for providing memory address interchanging for high speed memory accesses
US6765928B1 (en) * 1998-09-02 2004-07-20 Cisco Technology, Inc. Method and apparatus for transceiving multiple services data simultaneously over SONET/SDH
US6970455B2 (en) * 1998-11-13 2005-11-29 Lucent Technologies Inc. Space/time switch architecture
US6748481B1 (en) * 1999-04-06 2004-06-08 Microsoft Corporation Streaming information appliance with circular buffer for receiving and selectively reading blocks of streaming information
US6891836B1 (en) * 1999-06-03 2005-05-10 Fujitsu Network Communications, Inc. Switching complex architecture and operation
WO2002017525A1 (en) * 2000-08-25 2002-02-28 Fujitsu Limited Cross-connect device
US6580731B1 (en) * 2001-05-18 2003-06-17 Network Elements, Inc. Multi-stage SONET overhead processing
US7075953B2 (en) * 2001-07-30 2006-07-11 Network-Elements, Inc. Programmable SONET framing
US6748506B2 (en) * 2001-10-15 2004-06-08 Intel Corporation Bus frame protocol
JP3910063B2 (en) * 2001-12-27 2007-04-25 富士通株式会社 Transmission apparatus and data processing method in the transmission apparatus
CN100407603C (en) * 2002-07-02 2008-07-30 华为技术有限公司 Method for realizing time slot multiplexing/demultiplexing
US20040206470A1 (en) * 2003-04-18 2004-10-21 William Marsh Rice University Containerless infiltration with electromagnetic levitation
US7305014B2 (en) * 2003-04-22 2007-12-04 David Kirk Synchronous system bus
US7542484B2 (en) * 2003-09-30 2009-06-02 Nortel Networks Limited Managing payload specific latencies in a cross-connect system
US9961199B2 (en) * 2015-09-15 2018-05-01 T-Mobile Usa, Inc. Communication termination using hunt groups and implicit registration

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485468A (en) * 1982-04-01 1984-11-27 At&T Bell Laboratories Control word generation method and source facilities for multirate data time division switching
FR2634082B1 (en) * 1988-07-05 1993-11-26 Etat Francais Cnet METHOD AND END EQUIPMENT FOR ESTABLISHING A HIGH THROUGHPUT TELECOMMUNICATIONS LINK BY ASSOCIATING MULTIPLE INDEPENDENT CHANNELS
US4855996A (en) * 1988-08-03 1989-08-08 American Telephone And Telegraph Company Time division multiplex arrangement
US4967405A (en) * 1988-12-09 1990-10-30 Transwitch Corporation System for cross-connecting high speed digital SONET signals
US4998242A (en) * 1988-12-09 1991-03-05 Transwitch Corp. Virtual tributary cross connect switch and switch network utilizing the same
US4993016A (en) * 1989-05-08 1991-02-12 At&T Bell Laboratories Network control arrangement for processing a plurality of connection requests
US4991168A (en) * 1989-05-08 1991-02-05 At&T Bell Laboratories Concurrent multi-stage network control arrangement
US5040173A (en) * 1989-05-08 1991-08-13 At&T Bell Laboratories Network control arrangement based on topological equivalence
US5161152A (en) * 1989-12-15 1992-11-03 Alcatel Network Systems, Inc. High-speed synchronous transmission line access terminal
JP2803262B2 (en) * 1989-12-15 1998-09-24 日本電気株式会社 Packet switch
US5005170A (en) * 1990-01-09 1991-04-02 At&T Bell Laboratories Multi-rate multiplexing arrangement efficiently utilizing multiplexed channel bandwidth
JP3169217B2 (en) * 1990-01-19 2001-05-21 株式会社日立製作所 Time division multiple speed line connection method and apparatus
FR2659813B1 (en) * 1990-03-19 1994-06-03 Cit Alcatel ELEMENTARY SWITCHING UNIT FOR BREWING EQUIPMENT OF MULTIPLEX DIGITAL TRAINS BY TIME MULTIPLEXING OF DIGITAL TRIBUTORS AT DIFFERENT RATES.
US5119368A (en) * 1990-04-10 1992-06-02 At&T Bell Laboratories High-speed time-division switching system
US5146455A (en) * 1990-12-17 1992-09-08 At&T Bell Laboratories Wide range mixed rate TDM bus using a multiple of time slot interchange circuit switches

Also Published As

Publication number Publication date
DE69328002D1 (en) 2000-04-13
US5351236A (en) 1994-09-27
DE69328002T2 (en) 2000-10-19
JPH06205477A (en) 1994-07-22
EP0594355A3 (en) 1994-11-17
JP2928070B2 (en) 1999-07-28
ATE190454T1 (en) 2000-03-15
EP0594355A2 (en) 1994-04-27
CA2104754C (en) 1996-11-26
EP0594355B1 (en) 2000-03-08

Similar Documents

Publication Publication Date Title
CA2104754A1 (en) Multirate, Sonet-Ready, Switching Arrangement
CA2104755A1 (en) Multirate, Sonet-Ready, Switching Arrangement
CA2154042A1 (en) Video optimized media streamer
WO1993007699A3 (en) Broadband input buffered atm switch
CA2145017A1 (en) Cell Multiplexer Having Cell Delineation Function
EP0239224A3 (en) Random access memory apparatus
GB2221368A (en) Frame converter using a dual-port random access memory
AU643261B2 (en) Switching element for cross-connect equipment for digital bit streams multiplexed by time-division multiplexing digital tributaries with different bit rates
CA2064323A1 (en) Atm cell multiplexing device capable of reducing an accessing speed to a fifo memory thereof
MY115379A (en) Data deinterleaver in a digital television signal decoding system
US4833670A (en) Cross-point bit-switch for communication
CA2076144A1 (en) Delay-in-frames correcting system in a pcm transmission line
KR100298851B1 (en) Apparatus and method for power saving of time-space switch
CA2062562A1 (en) Switch coupled between input and output ports in communication system
HK142296A (en) Data switching nodes
GB1463834A (en) Pcm time division multiplex telecommunications systems
CA2275063A1 (en) Digital switch with rate conversion
JPH0222938A (en) Time slot switching method
SU1378038A1 (en) Spatial-temporal digital switching system
JPS6462997A (en) Time division switch
KR100330868B1 (en) Apparatus of Multiplying and Demultiplying Highway in the Switching System
JPH0514981A (en) Time division exchange
JPS62125797A (en) Pcm line unit
JPH04180499A (en) Time switch
JPS5840994A (en) Memory access system

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed