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WO1995032598A3 - Coupling of sdh signals in a ts's'ts's't coupling network - Google Patents

Coupling of sdh signals in a ts's'ts's't coupling network Download PDF

Info

Publication number
WO1995032598A3
WO1995032598A3 PCT/FI1995/000287 FI9500287W WO9532598A3 WO 1995032598 A3 WO1995032598 A3 WO 1995032598A3 FI 9500287 W FI9500287 W FI 9500287W WO 9532598 A3 WO9532598 A3 WO 9532598A3
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
output
sts
solution
same
Prior art date
Application number
PCT/FI1995/000287
Other languages
French (fr)
Other versions
WO1995032598A2 (en
Inventor
Timo Kasurinen
Patric Oestergaard
Original Assignee
Nokia Telecommunications Oy
Timo Kasurinen
Patric Oestergaard
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 Nokia Telecommunications Oy, Timo Kasurinen, Patric Oestergaard filed Critical Nokia Telecommunications Oy
Priority to AU25676/95A priority Critical patent/AU2567695A/en
Priority to EP95920095A priority patent/EP0796547A2/en
Publication of WO1995032598A2 publication Critical patent/WO1995032598A2/en
Publication of WO1995032598A3 publication Critical patent/WO1995032598A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/64—Distributing or queueing
    • H04Q3/68—Grouping or interlacing selector groups or stages
    • H04Q3/685—Circuit arrangements therefor
    • 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
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/06—Time-space-time switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0003—Switching fabrics, e.g. transport network, control network
    • H04J2203/0012—Switching modules and their interconnections

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention relates to a method of switching STM-N signals in a TS'S'TS'S'T switching network in which the number of input and output ports of the centre stage (STS) is, for example, double that of the ports of the input or output stages, whereby the doubled portion is called extra blocks. In the method in accordance with the invention, first a switching solution is obtained for the signals that travel through the time and space switches (TS) of the input side in such a way that in the same time slot of the outputs of the time switches (T) there is not more than one signal that goes to the same output port of the switching network. Thereafter a solution is obtained for the outputs of the space switches (S) of the input side in such a way that to the same centre block (STS) of the centre stage there does not go more than one signal that is to be routed to the same output block (ST). Finally, it is a simple matter to obtain a solution through the centre stage (STS) and the output side (TS).
PCT/FI1995/000287 1994-05-25 1995-05-24 Coupling of sdh signals in a ts's'ts's't coupling network WO1995032598A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU25676/95A AU2567695A (en) 1994-05-25 1995-05-24 Coupling of sdh signals in a ts's'ts's't coupling network
EP95920095A EP0796547A2 (en) 1994-05-25 1995-05-24 Coupling of sdh signals in a ts's'ts's't coupling network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI942434A FI97600C (en) 1994-05-25 1994-05-25 Connection of SDH signals in a TS'S'TS'S'T switching field
FI942434 1994-05-25

Publications (2)

Publication Number Publication Date
WO1995032598A2 WO1995032598A2 (en) 1995-11-30
WO1995032598A3 true WO1995032598A3 (en) 1995-12-14

Family

ID=8540771

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1995/000287 WO1995032598A2 (en) 1994-05-25 1995-05-24 Coupling of sdh signals in a ts's'ts's't coupling network

Country Status (4)

Country Link
EP (1) EP0796547A2 (en)
AU (1) AU2567695A (en)
FI (1) FI97600C (en)
WO (1) WO1995032598A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI97843C (en) * 1995-03-20 1997-02-25 Nokia Telecommunications Oy Method for switching route confirmation signals in a digital crossover
FI97842C (en) * 1995-03-20 1997-02-25 Nokia Telecommunications Oy Configuring a digital cross connection

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993022859A1 (en) * 1992-04-24 1993-11-11 Nokia Telecommunications Oy Method and device for configuration of a time-space-time cross-connection at occasions when the need of cross-connexion changes and use thereof
WO1993022858A1 (en) * 1992-04-23 1993-11-11 Nokia Telecommunications Oy Cross-connection architecture for sdh-signals comprising time- and space division switch groups
GB2269296A (en) * 1992-08-01 1994-02-02 Northern Telecom Ltd Telecommunications switch architecture
EP0606728A2 (en) * 1993-01-15 1994-07-20 AT&T Corp. Path hunt for efficient broadcast and multicast connections in multi-stage switching fabrics

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993022858A1 (en) * 1992-04-23 1993-11-11 Nokia Telecommunications Oy Cross-connection architecture for sdh-signals comprising time- and space division switch groups
WO1993022859A1 (en) * 1992-04-24 1993-11-11 Nokia Telecommunications Oy Method and device for configuration of a time-space-time cross-connection at occasions when the need of cross-connexion changes and use thereof
GB2269296A (en) * 1992-08-01 1994-02-02 Northern Telecom Ltd Telecommunications switch architecture
EP0606728A2 (en) * 1993-01-15 1994-07-20 AT&T Corp. Path hunt for efficient broadcast and multicast connections in multi-stage switching fabrics

Also Published As

Publication number Publication date
FI942434A (en) 1995-11-26
AU2567695A (en) 1995-12-18
FI97600B (en) 1996-09-30
FI942434A0 (en) 1994-05-25
FI97600C (en) 1997-01-10
EP0796547A2 (en) 1997-09-24
WO1995032598A2 (en) 1995-11-30

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