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GB2297228A - Forming a higher hierarchy level signal in a synchronous digital communication system - Google Patents

Forming a higher hierarchy level signal in a synchronous digital communication system

Info

Publication number
GB2297228A
GB2297228A GB9607821A GB9607821A GB2297228A GB 2297228 A GB2297228 A GB 2297228A GB 9607821 A GB9607821 A GB 9607821A GB 9607821 A GB9607821 A GB 9607821A GB 2297228 A GB2297228 A GB 2297228A
Authority
GB
United Kingdom
Prior art keywords
hierarchy level
level signal
higher hierarchy
communication system
forming
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
GB9607821A
Other versions
GB9607821D0 (en
GB2297228B (en
Inventor
Esa Viitanen
Vesa Kemppainen
Kari Sahlman
Toni Oksanen
Jari Patana
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.)
Nokia Oyj
Original Assignee
Nokia Telecommunications Oy
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 filed Critical Nokia Telecommunications Oy
Publication of GB9607821D0 publication Critical patent/GB9607821D0/en
Publication of GB2297228A publication Critical patent/GB2297228A/en
Application granted granted Critical
Publication of GB2297228B publication Critical patent/GB2297228B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H04J3/047—Distributors with transistors or integrated circuits
    • 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
    • H04J2203/0089—Multiplexing, e.g. coding, scrambling, SONET

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

The invention relates to a method and a circuit arrangement for forming a higher hierarchy level signal in a synchronous digital communication system. According to the method, (a) several lower hierarchy level signals are formed by means of separate circuits (22), and (b) a higher hierarchy level signal is formed by combining several lower level signals into one higher level signal. To form a higher hierarchy level signal as simply as possible, said separate circuits (22) are chained by means of a common bus (51) into a chain where said bus connects the separate circuits (22), in each circuit (22) the data of the channels to be formed by that circuit is added to the time slots corresponding to these channels in a higher hierarchy level frame, to the data of channels possibly added already in the other circuits of the chain, and the formed signal is connected forward from the circuit at the end of the chain. <IMAGE>
GB9607821A 1993-10-14 1994-10-13 Forming a higher hierarchy level signal in a synchronous digital communication system Expired - Fee Related GB2297228B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI934543A FI94699C (en) 1993-10-14 1993-10-14 Method and circuit arrangement for generating a higher hierarchical level signal in a synchronous digital communication system
PCT/FI1994/000461 WO1995010899A1 (en) 1993-10-14 1994-10-13 Forming a higher hierarchy level signal in a synchronous digital communication system

Publications (3)

Publication Number Publication Date
GB9607821D0 GB9607821D0 (en) 1996-06-19
GB2297228A true GB2297228A (en) 1996-07-24
GB2297228B GB2297228B (en) 1998-06-24

Family

ID=8538781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9607821A Expired - Fee Related GB2297228B (en) 1993-10-14 1994-10-13 Forming a higher hierarchy level signal in a synchronous digital communication system

Country Status (5)

Country Link
AU (1) AU7815294A (en)
DE (1) DE4497673T1 (en)
FI (1) FI94699C (en)
GB (1) GB2297228B (en)
WO (1) WO1995010899A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991308A (en) * 1995-08-25 1999-11-23 Terayon Communication Systems, Inc. Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant
US5805583A (en) * 1995-08-25 1998-09-08 Terayon Communication Systems Process for communicating multiple channels of digital data in distributed systems using synchronous code division multiple access
US5768269A (en) * 1995-08-25 1998-06-16 Terayon Corporation Apparatus and method for establishing frame synchronization in distributed digital data communication systems
US5745837A (en) * 1995-08-25 1998-04-28 Terayon Corporation Apparatus and method for digital data transmission over a CATV system using an ATM transport protocol and SCDMA
US5793759A (en) * 1995-08-25 1998-08-11 Terayon Corporation Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4719624A (en) * 1986-05-16 1988-01-12 Bell Communications Research, Inc. Multilevel multiplexing
US5091907A (en) * 1989-10-13 1992-02-25 Alcatel N.V. Multiplexer and demultiplexer, particularly for information transmission networks with a synchronous hierarchy of the digital signals
US5265095A (en) * 1988-06-06 1993-11-23 Siemens Aktiengesellschaft Method for inputting signals into and outputting signals out from subareas of the auxiliary signals of transport modules of a synchronous digital signal hierarchy
EP0598455A2 (en) * 1992-11-19 1994-05-25 Philips Patentverwaltung GmbH Transmission system for synchronous digital hierarchy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4719624A (en) * 1986-05-16 1988-01-12 Bell Communications Research, Inc. Multilevel multiplexing
US5265095A (en) * 1988-06-06 1993-11-23 Siemens Aktiengesellschaft Method for inputting signals into and outputting signals out from subareas of the auxiliary signals of transport modules of a synchronous digital signal hierarchy
US5091907A (en) * 1989-10-13 1992-02-25 Alcatel N.V. Multiplexer and demultiplexer, particularly for information transmission networks with a synchronous hierarchy of the digital signals
EP0598455A2 (en) * 1992-11-19 1994-05-25 Philips Patentverwaltung GmbH Transmission system for synchronous digital hierarchy

Also Published As

Publication number Publication date
AU7815294A (en) 1995-05-04
DE4497673T1 (en) 1996-11-14
WO1995010899A1 (en) 1995-04-20
GB9607821D0 (en) 1996-06-19
FI934543A0 (en) 1993-10-14
GB2297228B (en) 1998-06-24
FI94699C (en) 1995-10-10
FI934543A (en) 1995-04-15
FI94699B (en) 1995-06-30

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031013