GB2366161B - Communications apparatus and method of communicating timing information - Google Patents

Communications apparatus and method of communicating timing information

Info

Publication number
GB2366161B
GB2366161B GB0019926A GB0019926A GB2366161B GB 2366161 B GB2366161 B GB 2366161B GB 0019926 A GB0019926 A GB 0019926A GB 0019926 A GB0019926 A GB 0019926A GB 2366161 B GB2366161 B GB 2366161B
Authority
GB
United Kingdom
Prior art keywords
ethernet
timing information
timing data
communications apparatus
timing
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.)
Expired - Lifetime
Application number
GB0019926A
Other versions
GB2366161A (en
GB0019926D0 (en
Inventor
Emma Leigh Jones
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Priority to GB0019926A priority Critical patent/GB2366161B/en
Publication of GB0019926D0 publication Critical patent/GB0019926D0/en
Publication of GB2366161A publication Critical patent/GB2366161A/en
Application granted granted Critical
Publication of GB2366161B publication Critical patent/GB2366161B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Communication Control (AREA)
  • Small-Scale Networks (AREA)

Abstract

In communication systems requiring timing data, it is sometimes desirable to provide such timing data over an asynchronous medium, for example, Ethernet. However, it is understood that such timing data cannot be transmitted via the Ethernet. The present invention provides a mechanism for inserting timing information in an inter-frame gap (502) of a data frame (500) of the Ethernet. Consequently, it is possible to transmit timing information via the Ethernet. The provision of timing data in the inter-frame gap (502) obviates the need for a dedicated connection between network entities (206, 208) coupled to the Ethernet.
GB0019926A 2000-08-14 2000-08-14 Communications apparatus and method of communicating timing information Expired - Lifetime GB2366161B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0019926A GB2366161B (en) 2000-08-14 2000-08-14 Communications apparatus and method of communicating timing information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0019926A GB2366161B (en) 2000-08-14 2000-08-14 Communications apparatus and method of communicating timing information

Publications (3)

Publication Number Publication Date
GB0019926D0 GB0019926D0 (en) 2000-09-27
GB2366161A GB2366161A (en) 2002-02-27
GB2366161B true GB2366161B (en) 2004-05-19

Family

ID=9897541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0019926A Expired - Lifetime GB2366161B (en) 2000-08-14 2000-08-14 Communications apparatus and method of communicating timing information

Country Status (1)

Country Link
GB (1) GB2366161B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008125025A1 (en) * 2007-04-16 2008-10-23 Huawei Technologies Co., Ltd. Inter-packet gap network clock synchronization

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030235214A1 (en) * 2002-05-07 2003-12-25 Andre Leroux Service channel over the Ethernet inter-frame gap
EP1398980A1 (en) * 2002-09-06 2004-03-17 Teltronic S.A.U. Tetra base station with ethernet architecture
DE10308952A1 (en) * 2003-02-28 2004-09-09 Siemens Ag Synchronization in a switchable data network
CN100334819C (en) * 2003-06-26 2007-08-29 北京瑞斯康达科技发展有限公司 Ethernet optical fiber transceiver and data transceiving method used on said tranceiver
US20050058150A1 (en) 2003-09-16 2005-03-17 Boles Glenn M. Method and apparatus for enhancing packet communication
US7986700B2 (en) 2006-09-25 2011-07-26 Futurewei Technologies, Inc. Multiplexed data stream circuit architecture
US8340101B2 (en) 2006-09-25 2012-12-25 Futurewei Technologies, Inc. Multiplexed data stream payload format
US7809027B2 (en) 2006-09-25 2010-10-05 Futurewei Technologies, Inc. Network clock synchronization floating window and window delineation
US7961751B2 (en) 2006-09-25 2011-06-14 Futurewei Technologies, Inc. Multiplexed data stream timeslot map
US8494009B2 (en) 2006-09-25 2013-07-23 Futurewei Technologies, Inc. Network clock synchronization timestamp
US8976796B2 (en) 2006-09-25 2015-03-10 Futurewei Technologies, Inc. Bandwidth reuse in multiplexed data stream
US8660152B2 (en) 2006-09-25 2014-02-25 Futurewei Technologies, Inc. Multi-frame network clock synchronization
US7813271B2 (en) 2006-09-25 2010-10-12 Futurewei Technologies, Inc. Aggregated link traffic protection
US8588209B2 (en) 2006-09-25 2013-11-19 Futurewei Technologies, Inc. Multi-network compatible data architecture
US7675945B2 (en) 2006-09-25 2010-03-09 Futurewei Technologies, Inc. Multi-component compatible data architecture
FI119310B (en) * 2006-10-02 2008-09-30 Tellabs Oy Procedure and equipment for transmitting time marking information
CN101578794B (en) 2007-01-26 2012-12-12 华为技术有限公司 Multiplexed data stream circuit architecture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008125025A1 (en) * 2007-04-16 2008-10-23 Huawei Technologies Co., Ltd. Inter-packet gap network clock synchronization

Also Published As

Publication number Publication date
GB2366161A (en) 2002-02-27
GB0019926D0 (en) 2000-09-27

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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)

Free format text: REGISTERED BETWEEN 20110120 AND 20110126

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20170831 AND 20170906

PE20 Patent expired after termination of 20 years

Expiry date: 20200813