GB2266644A - Overhead transmissions in a data communication system - Google Patents

Overhead transmissions in a data communication system Download PDF

Info

Publication number
GB2266644A
GB2266644A GB9208993A GB9208993A GB2266644A GB 2266644 A GB2266644 A GB 2266644A GB 9208993 A GB9208993 A GB 9208993A GB 9208993 A GB9208993 A GB 9208993A GB 2266644 A GB2266644 A GB 2266644A
Authority
GB
United Kingdom
Prior art keywords
frame
overhead
bit
data
disparity
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.)
Withdrawn
Application number
GB9208993A
Other languages
English (en)
Other versions
GB9208993D0 (en
Inventor
Alan James Jennings
Nicholas John Kings
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.)
GPT Ltd
Plessey Telecommunications Ltd
Original Assignee
GPT Ltd
Plessey Telecommunications 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 GPT Ltd, Plessey Telecommunications Ltd filed Critical GPT Ltd
Priority to GB9208993A priority Critical patent/GB2266644A/en
Publication of GB9208993D0 publication Critical patent/GB9208993D0/en
Priority to AU40215/93A priority patent/AU4021593A/en
Priority to PCT/GB1993/000855 priority patent/WO1993022852A1/en
Priority to CN 93106116 priority patent/CN1081302A/zh
Publication of GB2266644A publication Critical patent/GB2266644A/en
Withdrawn legal-status Critical Current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
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
GB9208993A 1992-04-25 1992-04-25 Overhead transmissions in a data communication system Withdrawn GB2266644A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9208993A GB2266644A (en) 1992-04-25 1992-04-25 Overhead transmissions in a data communication system
AU40215/93A AU4021593A (en) 1992-04-25 1993-04-23 Transfer of SDH overhead information
PCT/GB1993/000855 WO1993022852A1 (en) 1992-04-25 1993-04-23 Transfer of sdh overhead information
CN 93106116 CN1081302A (zh) 1992-04-25 1993-04-24 数据通信监视系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9208993A GB2266644A (en) 1992-04-25 1992-04-25 Overhead transmissions in a data communication system

Publications (2)

Publication Number Publication Date
GB9208993D0 GB9208993D0 (en) 1992-06-10
GB2266644A true GB2266644A (en) 1993-11-03

Family

ID=10714557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9208993A Withdrawn GB2266644A (en) 1992-04-25 1992-04-25 Overhead transmissions in a data communication system

Country Status (4)

Country Link
CN (1) CN1081302A (zh)
AU (1) AU4021593A (zh)
GB (1) GB2266644A (zh)
WO (1) WO1993022852A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290432A (en) * 1994-03-23 1995-12-20 Plessey Telecomm Telecommunications system protection scheme

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK176242B1 (da) * 1995-11-24 2007-04-16 Tellabs Denmark As Modtageenhed til et datatransmissionssystem
US7567587B1 (en) 2003-01-10 2009-07-28 Pmc-Sierra, Inc. Method and architecture for the extraction and/or insertion of SONET or SDH path overhead data streams
CN101162958B (zh) * 2006-10-11 2012-04-18 中兴通讯股份有限公司 一种sdh传输系统中定位帧头信号的采样方法
CN1960502B (zh) * 2006-10-16 2010-08-18 中兴通讯股份有限公司 一种移动多媒体广播系统的容错方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988000780A1 (en) * 1986-07-23 1988-01-28 Optical Communications Corporation Optical communications transmitter and receiver
GB2259634A (en) * 1991-09-10 1993-03-17 Ericsson Telefon Ab L M Time synchronization and demodulation of received digital signals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156112A (en) * 1977-12-07 1979-05-22 Control Junctions, Inc. Control system using time division multiplexing
US4416009A (en) * 1980-11-14 1983-11-15 Rockwell International Corporation Synchronous coupling of framed data in digital transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988000780A1 (en) * 1986-07-23 1988-01-28 Optical Communications Corporation Optical communications transmitter and receiver
GB2259634A (en) * 1991-09-10 1993-03-17 Ericsson Telefon Ab L M Time synchronization and demodulation of received digital signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290432A (en) * 1994-03-23 1995-12-20 Plessey Telecomm Telecommunications system protection scheme
GB2290432B (en) * 1994-03-23 1998-06-10 Plessey Telecomm Telecommunications system protection scheme

Also Published As

Publication number Publication date
GB9208993D0 (en) 1992-06-10
CN1081302A (zh) 1994-01-26
WO1993022852A1 (en) 1993-11-11
AU4021593A (en) 1993-11-29

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)