BRPI0924053A2 - método, aparelho e sistema para sincronização de tempo de xdsl - Google Patents

método, aparelho e sistema para sincronização de tempo de xdsl

Info

Publication number
BRPI0924053A2
BRPI0924053A2 BRPI0924053A BRPI0924053A BRPI0924053A2 BR PI0924053 A2 BRPI0924053 A2 BR PI0924053A2 BR PI0924053 A BRPI0924053 A BR PI0924053A BR PI0924053 A BRPI0924053 A BR PI0924053A BR PI0924053 A2 BRPI0924053 A2 BR PI0924053A2
Authority
BR
Brazil
Prior art keywords
xdsl
time synchronization
synchronization method
time
xdsl time
Prior art date
Application number
BRPI0924053A
Other languages
English (en)
Inventor
Guijin Xu
Guozhu Long
Ruijie Xiao
Xuyong Wu
Yuchen Jia
Zhilei Zhao
Original Assignee
Huawei Tech Co 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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BRPI0924053A2 publication Critical patent/BRPI0924053A2/pt
Publication of BRPI0924053B1 publication Critical patent/BRPI0924053B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
    • H04L7/0033—Correction by delay
    • H04L7/0041—Delay of data signal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Telephonic Communication Services (AREA)
BRPI0924053-5A 2009-01-16 2009-11-18 método e sistema para sincronização de tempo de uma linha de assinante digital e aparelho de linha de assinante digital BRPI0924053B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN200910105103.3A CN101783779B (zh) 2009-01-16 2009-01-16 一种xDSL时间同步方法、装置和系统
CN200910105103.3 2009-01-16
PCT/CN2009/075002 WO2010081348A1 (zh) 2009-01-16 2009-11-18 一种xDSL时间同步方法、装置和系统

Publications (2)

Publication Number Publication Date
BRPI0924053A2 true BRPI0924053A2 (pt) 2016-01-26
BRPI0924053B1 BRPI0924053B1 (pt) 2021-01-05

Family

ID=42339423

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0924053-5A BRPI0924053B1 (pt) 2009-01-16 2009-11-18 método e sistema para sincronização de tempo de uma linha de assinante digital e aparelho de linha de assinante digital

Country Status (13)

Country Link
US (2) US8442175B2 (pt)
EP (3) EP2658201B1 (pt)
JP (1) JP5429758B2 (pt)
KR (1) KR101288435B1 (pt)
CN (1) CN101783779B (pt)
AU (1) AU2009337606B2 (pt)
BR (1) BRPI0924053B1 (pt)
CA (1) CA2749879C (pt)
ES (2) ES2437665T3 (pt)
MX (1) MX2011007601A (pt)
PL (2) PL2387190T3 (pt)
RU (1) RU2483460C2 (pt)
WO (1) WO2010081348A1 (pt)

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CN101783779B (zh) * 2009-01-16 2014-07-16 华为技术有限公司 一种xDSL时间同步方法、装置和系统
US8305955B2 (en) * 2009-02-27 2012-11-06 Broadcom Corporation Method and system for network synchronization via a femtocell
CN102035613A (zh) * 2009-09-28 2011-04-27 华为技术有限公司 实现时间同步的方法、装置及网络系统
US9001904B2 (en) * 2010-03-03 2015-04-07 Lantiq Deutschland Gmbh Multi-carrier clock transport and synchronization
CN102244925B (zh) * 2010-05-14 2014-05-07 华为技术有限公司 时钟同步方法、用户端设备和时钟同步系统
WO2011154046A1 (en) * 2010-06-11 2011-12-15 Net Insight Ab Node and system for a synchronous network
CN102137314B (zh) * 2010-07-28 2015-07-08 华为技术有限公司 数字用户线系统中的信号发送方法、装置和系统
US9680567B2 (en) * 2011-03-03 2017-06-13 Acacia Communications, Inc. Fault localization and fiber security in optical transponders
US20120278421A1 (en) * 2011-04-27 2012-11-01 Centec Networks (Suzhou) Co., Ltd. Providing a data sample in a measurement and control system
WO2013110332A1 (en) * 2012-01-26 2013-08-01 Nokia Siemens Networks Oy Time synchronization in dsl environment
EP2810385B1 (en) * 2012-02-01 2018-08-29 ABB Schweiz AG Updating data of a controller of a primary device of a power substation
EP2555465A4 (en) * 2012-02-01 2013-12-18 Huawei Tech Co Ltd METHOD, DEVICE AND SYSTEM FOR SYNCHRONIZATION
CN104081751B (zh) * 2012-10-23 2016-06-29 华为技术有限公司 发送selt测量信号的方法和装置以及控制设备
US20140161000A1 (en) * 2012-12-10 2014-06-12 Futurewei Technologies, Inc. Timing offset correction in a tdd vectored system
US9432144B2 (en) * 2014-09-12 2016-08-30 Ciena Corporation Precision time transfer systems and methods in optical networks
TWI566613B (zh) 2015-10-15 2017-01-11 廣達電腦股份有限公司 資料流中繼裝置與通訊裝置
US9742549B1 (en) * 2016-09-29 2017-08-22 Analog Devices Global Apparatus and methods for asynchronous clock mapping
CN110337679B (zh) * 2017-02-17 2021-12-31 日本电信电话株式会社 感测系统及时间戳校正方法
CN108988972B (zh) * 2017-06-02 2020-04-28 华为技术有限公司 一种时钟同步方法及设备
US10594395B2 (en) 2018-07-23 2020-03-17 Ciena Corporation Systems and methods for compensating coherent optics delay asymmetry in a packet optical network
CN111867040B (zh) * 2019-04-30 2021-12-28 华为技术有限公司 一种通信方法、终端设备以及网络设备
US11552722B2 (en) 2020-12-10 2023-01-10 Ciena Corporation Precision time protocol using a coherent optical DSP frame

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US6137839A (en) * 1996-05-09 2000-10-24 Texas Instruments Incorporated Variable scaling of 16-bit fixed point fast fourier forward and inverse transforms to improve precision for implementation of discrete multitone for asymmetric digital subscriber loops
JP3024111B2 (ja) * 1997-12-17 2000-03-21 株式会社ケンウッド 受信機の受信信号絶対位相化装置
US6683921B1 (en) * 1997-12-17 2004-01-27 Kabushiki Kaisha Kenwood Received-signal absolute phasing apparatus of receiver
EP0987864A1 (en) 1998-09-15 2000-03-22 Alcatel Time error compensation arrangement and multi-carrier modem comprising the arrangement
US6697769B1 (en) * 2000-01-21 2004-02-24 Microsoft Corporation Method and apparatus for fast machine training
US7068746B1 (en) * 2000-03-01 2006-06-27 Lucent Technologies Inc. Base station transceiver to radio network controller synchronization filtering function
US6934655B2 (en) * 2001-03-16 2005-08-23 Mindspeed Technologies, Inc. Method and apparatus for transmission line analysis
RU19981U1 (ru) * 2001-04-24 2001-10-10 Закрытое акционерное общество "НТЦ НАТЕКС" Цифровая система передачи для двух кабельных пар с аналоговой обработкой и коррекцией сигнала
US7151945B2 (en) * 2002-03-29 2006-12-19 Cisco Systems Wireless Networking (Australia) Pty Limited Method and apparatus for clock synchronization in a wireless network
US20070147435A1 (en) * 2005-12-23 2007-06-28 Bruce Hamilton Removing delay fluctuation in network time synchronization
US7602873B2 (en) * 2005-12-23 2009-10-13 Agilent Technologies, Inc. Correcting time synchronization inaccuracy caused by asymmetric delay on a communication link
US8295310B2 (en) * 2006-09-25 2012-10-23 Futurewei Technologies, Inc. Inter-packet gap network clock synchronization
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CN101075848B (zh) 2007-07-05 2011-07-20 华为技术有限公司 一种微蜂窝网络基站同步的方法、系统和基站
CN101425865B (zh) 2007-10-31 2013-04-24 电信科学技术研究院 传输网中的时钟同步方法、系统和从时钟侧实体
WO2009056638A1 (en) * 2007-11-02 2009-05-07 Nortel Networks Limited Synchronization of network nodes
US8208497B2 (en) * 2007-12-28 2012-06-26 Qualcomm Incorporated Time stamped packet data interface between a modem and an RF unit
CN101231337B (zh) * 2008-02-15 2010-07-28 哈尔滨工程大学 高精度时间同步装置
US8473638B2 (en) * 2008-05-02 2013-06-25 James Aweya Method and apparatus for time and frequency transfer in communication networks
US8274998B2 (en) * 2008-10-02 2012-09-25 Cortina Systems, Inc. Systems and methods for packet based timing offset determination using timing adjustment information
CN101783779B (zh) * 2009-01-16 2014-07-16 华为技术有限公司 一种xDSL时间同步方法、装置和系统
CN102111380B (zh) * 2009-12-25 2014-05-07 华为技术有限公司 一种时间同步的方法、设备及系统
EP2589171B1 (en) * 2010-07-02 2016-04-27 Huawei Technologies Co., Ltd. Method for accurate distribution of time to a receiver node in an access network

Also Published As

Publication number Publication date
CA2749879A1 (en) 2010-07-22
KR101288435B1 (ko) 2013-07-26
ES2437665T3 (es) 2014-01-13
JP5429758B2 (ja) 2014-02-26
RU2011134258A (ru) 2013-02-27
BRPI0924053B1 (pt) 2021-01-05
EP2966826A1 (en) 2016-01-13
US8442175B2 (en) 2013-05-14
EP2658201A1 (en) 2013-10-30
CA2749879C (en) 2015-07-07
EP2387190B1 (en) 2013-09-18
ES2579154T3 (es) 2016-08-05
US20130148710A1 (en) 2013-06-13
CN101783779B (zh) 2014-07-16
US20110274149A1 (en) 2011-11-10
JP2012515476A (ja) 2012-07-05
CN101783779A (zh) 2010-07-21
AU2009337606B2 (en) 2013-10-03
EP2658201B1 (en) 2016-03-30
RU2483460C2 (ru) 2013-05-27
US10135602B2 (en) 2018-11-20
EP2387190A4 (en) 2012-05-23
EP2966826B1 (en) 2018-01-10
MX2011007601A (es) 2011-09-29
PL2387190T3 (pl) 2014-02-28
EP2387190A1 (en) 2011-11-16
AU2009337606A1 (en) 2011-08-18
WO2010081348A1 (zh) 2010-07-22
PL2658201T3 (pl) 2016-09-30
KR20110102941A (ko) 2011-09-19

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: H04L 27/26

Ipc: H04J 3/06 (1968.09), H04L 7/00 (1968.09), H04L 7/0

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 05/01/2021, OBSERVADAS AS CONDICOES LEGAIS.