JP5913596B2 - 無線ネットワーク時刻同期のための方法及び装置 - Google Patents

無線ネットワーク時刻同期のための方法及び装置 Download PDF

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JP5913596B2
JP5913596B2 JP2014531299A JP2014531299A JP5913596B2 JP 5913596 B2 JP5913596 B2 JP 5913596B2 JP 2014531299 A JP2014531299 A JP 2014531299A JP 2014531299 A JP2014531299 A JP 2014531299A JP 5913596 B2 JP5913596 B2 JP 5913596B2
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clock
physical layer
station
time
application layer
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JP2014528217A5 (enExample
JP2014528217A (ja
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イアン ロバート ノールズ
イアン ロバート ノールズ
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イマジネイション テクノロジーズ リミテッド
イマジネイション テクノロジーズ リミテッド
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0008—Synchronisation information channels, e.g. clock distribution lines
    • H04L7/0012—Synchronisation information channels, e.g. clock distribution lines by comparing receiver clock with transmitter clock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/08—Speed or phase control by synchronisation signals the synchronisation signals recurring cyclically
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Small-Scale Networks (AREA)
JP2014531299A 2011-09-23 2012-09-21 無線ネットワーク時刻同期のための方法及び装置 Active JP5913596B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB1116521.4 2011-09-23
GBGB1116521.4A GB201116521D0 (en) 2011-09-23 2011-09-23 Method and apparatus for time synchronisation in wireless networks
GB1209312.6A GB2494949B (en) 2011-09-23 2012-05-24 Method and apparatus for time synchronisation in wireless networks
GB1209312.6 2012-05-24
PCT/GB2012/000737 WO2013041829A1 (en) 2011-09-23 2012-09-21 Method and apparatus for time synchronisation in wireless networks

Publications (3)

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JP2014528217A JP2014528217A (ja) 2014-10-23
JP2014528217A5 JP2014528217A5 (enExample) 2015-11-12
JP5913596B2 true JP5913596B2 (ja) 2016-04-27

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US (8) US8707077B2 (enExample)
EP (1) EP2759174B1 (enExample)
JP (1) JP5913596B2 (enExample)
KR (1) KR101496108B1 (enExample)
CN (2) CN106162861B (enExample)
AU (1) AU2012311373B2 (enExample)
CA (1) CA2849594C (enExample)
GB (2) GB201116521D0 (enExample)
WO (1) WO2013041829A1 (enExample)

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Also Published As

Publication number Publication date
US10491371B2 (en) 2019-11-26
GB201209312D0 (en) 2012-07-04
US9444567B2 (en) 2016-09-13
US8707077B2 (en) 2014-04-22
AU2012311373A1 (en) 2014-03-20
WO2013041829A1 (en) 2013-03-28
US20220353055A1 (en) 2022-11-03
CN103828449B (zh) 2016-05-11
GB201116521D0 (en) 2011-11-09
GB2494949B (en) 2013-08-21
EP2759174B1 (en) 2015-09-16
US20140204930A1 (en) 2014-07-24
US11394524B2 (en) 2022-07-19
CN103828449A (zh) 2014-05-28
KR20140093217A (ko) 2014-07-25
US20200059349A1 (en) 2020-02-20
CA2849594A1 (en) 2013-03-28
US20240137202A1 (en) 2024-04-25
US12395312B2 (en) 2025-08-19
JP2014528217A (ja) 2014-10-23
GB2494949A (en) 2013-03-27
US20160360498A1 (en) 2016-12-08
EP2759174A1 (en) 2014-07-30
CA2849594C (en) 2015-01-20
AU2012311373B2 (en) 2014-10-02
CN106162861A (zh) 2016-11-23
US20180006802A1 (en) 2018-01-04
US20250358095A1 (en) 2025-11-20
CN106162861B (zh) 2020-02-28
US11863656B2 (en) 2024-01-02
KR101496108B1 (ko) 2015-02-25
US9794058B2 (en) 2017-10-17
US20130128116A1 (en) 2013-05-23

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