CN1606839A - 利于无线网状网络中同步的装置及相关方法 - Google Patents
利于无线网状网络中同步的装置及相关方法 Download PDFInfo
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- CN1606839A CN1606839A CNA028254600A CN02825460A CN1606839A CN 1606839 A CN1606839 A CN 1606839A CN A028254600 A CNA028254600 A CN A028254600A CN 02825460 A CN02825460 A CN 02825460A CN 1606839 A CN1606839 A CN 1606839A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2662—Arrangements for Wireless System Synchronisation
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- 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
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/248—Connectivity information update
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Small-Scale Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/028,344 | 2001-12-21 | ||
US10/028,344 US7180915B2 (en) | 2001-12-21 | 2001-12-21 | Apparatus, and an associated method, for facilitating synchronization in a wireless mesh network |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1606839A true CN1606839A (zh) | 2005-04-13 |
CN100388646C CN100388646C (zh) | 2008-05-14 |
Family
ID=21842918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028254600A Expired - Fee Related CN100388646C (zh) | 2001-12-21 | 2002-12-19 | 利于无线网状网络中同步的装置及相关方法 |
Country Status (5)
Country | Link |
---|---|
US (2) | US7180915B2 (zh) |
EP (1) | EP1456973A1 (zh) |
CN (1) | CN100388646C (zh) |
AU (1) | AU2002356365A1 (zh) |
WO (1) | WO2003055103A1 (zh) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101034339B (zh) * | 2006-03-06 | 2010-11-03 | 惠普开发有限公司 | 分级时标 |
CN101171789B (zh) * | 2005-07-15 | 2010-12-22 | 三星电子株式会社 | 基于时间戳的时间同步方法和设备 |
CN101166184B (zh) * | 2006-10-17 | 2011-03-30 | 华为技术有限公司 | Ntp软件时间硬件测量方法和装置 |
CN102348277A (zh) * | 2011-11-24 | 2012-02-08 | 电信科学技术研究院 | 一种在混合自组织网络中实现终端同步的方法及系统 |
CN101321027B (zh) * | 2008-07-21 | 2012-09-05 | 中国科学院计算技术研究所 | 一种无线网状网的同步方法 |
CN104041151A (zh) * | 2012-01-12 | 2014-09-10 | 高通股份有限公司 | 用于使无线网络与外部定时源同步的方法和装置 |
CN106656393A (zh) * | 2016-12-28 | 2017-05-10 | 广东大普通信技术有限公司 | 时钟同步方法及装置 |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7570669B2 (en) * | 2003-08-08 | 2009-08-04 | Opnet Technologies, Inc. | Synchronizing packet traces |
JP4311234B2 (ja) * | 2004-03-08 | 2009-08-12 | 沖電気工業株式会社 | 通信タイミング制御装置、通信タイミング制御方法、ノード及び通信システム |
US7239626B2 (en) | 2004-06-30 | 2007-07-03 | Sharp Laboratories Of America, Inc. | System clock synchronization in an ad hoc and infrastructure wireless networks |
DE112005003430A5 (de) * | 2004-11-25 | 2007-10-31 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Synchronisation und Datenübertragung |
CN100379183C (zh) * | 2004-11-30 | 2008-04-02 | 西安电子科技大学 | 移动无线自组织网络的互同步方法 |
US9686123B2 (en) * | 2015-10-19 | 2017-06-20 | Blackfire Research Corporation | System for media distribution and rendering on spatially extended wireless networks |
US20070258428A1 (en) * | 2006-04-24 | 2007-11-08 | Interdigital Technology Corporation | Method and apparatus for coordinating timing in a wireless local area network |
US7680063B2 (en) * | 2006-11-10 | 2010-03-16 | Motorola, Inc. | Method and apparatus for synchronizing transmissions from multiple transmitters |
US8902933B2 (en) * | 2007-05-02 | 2014-12-02 | Tyco Fire & Security Gmbh | Wireless communication system |
US8856209B2 (en) * | 2007-05-31 | 2014-10-07 | Tymphany Hong Kong Limited | Systems and methods for synchronization in a networked environment |
US8089989B2 (en) * | 2007-11-29 | 2012-01-03 | Samsung Electronics Co., Ltd. | Synchronization of nodes on a network |
TWI458284B (zh) * | 2007-12-07 | 2014-10-21 | Koninkl Philips Electronics Nv | 分散無線系統中的多頻道支援 |
US7995467B2 (en) * | 2007-12-12 | 2011-08-09 | Synapsense Corporation | Apparatus and method for adapting to failures in gateway devices in mesh networks |
US8351369B2 (en) * | 2007-12-12 | 2013-01-08 | Synapsense Corporation | Apparatus and method for adaptive data packet scheduling in mesh networks |
US8331282B2 (en) | 2007-12-28 | 2012-12-11 | Synapsense Corporation | Apparatus and method for adaptive channel hopping in mesh networks |
US8885548B2 (en) * | 2007-12-28 | 2014-11-11 | Synapsense Corporation | Apparatus and method for admitting new devices in a self-healing, self-organizing mesh network |
US8473898B2 (en) * | 2008-07-08 | 2013-06-25 | Synapsense Corporation | Apparatus and method for building integrated distributed applications for use with a mesh network |
US8532003B2 (en) * | 2008-10-03 | 2013-09-10 | Synapsense Corporation | Apparatus and method for managing packet routing through internally-powered network devices in wireless sensor networks |
US8600560B2 (en) | 2008-12-30 | 2013-12-03 | Synapsense Corporation | Apparatus and method for controlling computer room air conditioning units (CRACs) in data centers |
US8538584B2 (en) | 2008-12-30 | 2013-09-17 | Synapsense Corporation | Apparatus and method for controlling environmental conditions in a data center using wireless mesh networks |
US8761084B2 (en) * | 2009-01-14 | 2014-06-24 | Synapsense Corporation | Apparatus and method for establishing data communication in a time-synchronized mesh wireless network during time synchronization failures |
US8160838B2 (en) * | 2009-04-30 | 2012-04-17 | Synapsense Corporation | Apparatus and method for visualizing environmental conditions in a data center using wireless sensor networks |
US8811377B1 (en) | 2010-08-30 | 2014-08-19 | Synapsense Corporation | Apparatus and method for instrumenting devices to measure power usage using a multi-tier wireless network |
US9173196B2 (en) * | 2010-10-07 | 2015-10-27 | GM Global Technology Operations LLC | Adaptive multi-channel access for vehicular networks |
DE102012205355A1 (de) * | 2012-04-02 | 2013-10-02 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren zur Integration von Netzteilnehmern in ein ad-hoc-Netzwerk und zugehöriges ad-hoc-Netzwerk |
DE102013200845A1 (de) | 2012-06-08 | 2013-12-12 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren und System zur Zeitsynchronisierung in einem ad-hoc-Netzwerk |
US20140192793A1 (en) * | 2013-01-04 | 2014-07-10 | Qualcomm Incorporated | Systems and methods for hierarchical time source usage in near-me area network discovery and synchronization |
US9386552B2 (en) * | 2013-09-30 | 2016-07-05 | Honeywell International Inc. | Wireless sensor time synchronization |
US9872232B2 (en) | 2013-12-02 | 2018-01-16 | Qualcomm Incorporated | Methods and apparatus for neighborhood area network detection |
EP3236383A1 (en) | 2016-04-20 | 2017-10-25 | Gemalto Sa | Method for managing a real-time clock in a portable tamper-resistant device |
GB2551327B (en) * | 2016-06-10 | 2020-02-19 | Bluwireless Tech Ltd | Clock synchronisation in wireless mesh communications networks |
GB2551328B (en) * | 2016-06-10 | 2020-02-19 | Bluwireless Tech Ltd | Clock synchronisation in wireless mesh communications networks |
US11070348B1 (en) | 2019-12-16 | 2021-07-20 | Facebook, Inc. | Time synchronization of a wireless network |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2091962A1 (en) * | 1992-03-31 | 1993-10-01 | Mark L. Witsaman | Clock synchronization system |
US5481258A (en) * | 1993-08-11 | 1996-01-02 | Glenayre Electronics, Inc. | Method and apparatus for coordinating clocks in a simulcast network |
US6307868B1 (en) * | 1995-08-25 | 2001-10-23 | Terayon Communication Systems, Inc. | Apparatus and method for SCDMA digital data transmission using orthogonal codes and a head end modem with no tracking loops |
GB2321827B (en) | 1997-01-31 | 2001-06-13 | Ericsson Telefon Ab L M | Telecommunications system |
US6546013B1 (en) * | 1997-03-21 | 2003-04-08 | Scientific-Atlanta, Inc. | Method and apparatus for delivering reference signal information within a specified time interval |
BR9910276A (pt) * | 1998-05-08 | 2001-10-02 | Koninkl Philips Electronics Nv | Processos para gravar e para reproduzir um ou mais programas de áudio e/ou vìdeo digitais, e, dispositivos de gravação e de reprodução |
EP1142176A2 (en) | 1998-12-18 | 2001-10-10 | Telefonaktiebolaget L M Ericsson (Publ) | Clock synchronization in telecommunications network using system frame number |
JP2002538688A (ja) | 1999-02-26 | 2002-11-12 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | セルラー電気通信ネットワークの共通チャネル信号を使用する時間管理 |
EP1052793B8 (en) * | 1999-05-11 | 2009-04-01 | Canon Kabushiki Kaisha | Method and device for synchronisation between two networks |
US6671722B1 (en) * | 1999-07-08 | 2003-12-30 | Intel Corporation | Stack-less, CPU-less creation of valid SNMP-trap packets |
US6816510B1 (en) | 2000-02-09 | 2004-11-09 | Koninklijke Philips Electronics N.V. | Method for clock synchronization between nodes in a packet network |
US7647619B2 (en) * | 2000-04-26 | 2010-01-12 | Sony Corporation | Scalable filtering table |
-
2001
- 2001-12-21 US US10/028,344 patent/US7180915B2/en active Active
-
2002
- 2002-12-19 AU AU2002356365A patent/AU2002356365A1/en not_active Abandoned
- 2002-12-19 WO PCT/IB2002/005517 patent/WO2003055103A1/en not_active Application Discontinuation
- 2002-12-19 CN CNB028254600A patent/CN100388646C/zh not_active Expired - Fee Related
- 2002-12-19 EP EP02805454A patent/EP1456973A1/en not_active Withdrawn
-
2007
- 2007-01-16 US US11/653,817 patent/US20070127528A1/en not_active Abandoned
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101171789B (zh) * | 2005-07-15 | 2010-12-22 | 三星电子株式会社 | 基于时间戳的时间同步方法和设备 |
CN101034339B (zh) * | 2006-03-06 | 2010-11-03 | 惠普开发有限公司 | 分级时标 |
CN101166184B (zh) * | 2006-10-17 | 2011-03-30 | 华为技术有限公司 | Ntp软件时间硬件测量方法和装置 |
CN101321027B (zh) * | 2008-07-21 | 2012-09-05 | 中国科学院计算技术研究所 | 一种无线网状网的同步方法 |
CN102348277A (zh) * | 2011-11-24 | 2012-02-08 | 电信科学技术研究院 | 一种在混合自组织网络中实现终端同步的方法及系统 |
CN102348277B (zh) * | 2011-11-24 | 2014-02-12 | 电信科学技术研究院 | 一种在混合自组织网络中实现终端同步的方法及系统 |
CN104041151A (zh) * | 2012-01-12 | 2014-09-10 | 高通股份有限公司 | 用于使无线网络与外部定时源同步的方法和装置 |
CN106656393A (zh) * | 2016-12-28 | 2017-05-10 | 广东大普通信技术有限公司 | 时钟同步方法及装置 |
CN106656393B (zh) * | 2016-12-28 | 2018-10-19 | 深圳市英特瑞半导体科技有限公司 | 时钟同步方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2003055103A1 (en) | 2003-07-03 |
CN100388646C (zh) | 2008-05-14 |
US7180915B2 (en) | 2007-02-20 |
US20070127528A1 (en) | 2007-06-07 |
AU2002356365A1 (en) | 2003-07-09 |
US20030117991A1 (en) | 2003-06-26 |
EP1456973A1 (en) | 2004-09-15 |
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: NOKIA AND SIEMENS NETWORKS CO., LTD. Free format text: FORMER OWNER: NOKIA NETWORKS OY Effective date: 20080725 |
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Effective date of registration: 20080725 Address after: Espoo, Finland Patentee after: Nokia Siemens Network Co., Ltd. Address before: Espoo, Finland Patentee before: Nokia Oyj |
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Granted publication date: 20080514 Termination date: 20101219 |