HK1107200A1 - Method of symbol timing synchronization in communication systems - Google Patents

Method of symbol timing synchronization in communication systems

Info

Publication number
HK1107200A1
HK1107200A1 HK07109110.9A HK07109110A HK1107200A1 HK 1107200 A1 HK1107200 A1 HK 1107200A1 HK 07109110 A HK07109110 A HK 07109110A HK 1107200 A1 HK1107200 A1 HK 1107200A1
Authority
HK
Hong Kong
Prior art keywords
symbol timing
transmitter
timing
receiver
wireless terminal
Prior art date
Application number
HK07109110.9A
Other languages
English (en)
Inventor
Rajiv Laroia
Junyi Li
Vladimir Parizhsky
Original Assignee
Qualcomm 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23050067&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK1107200(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of HK1107200A1 publication Critical patent/HK1107200A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/208—Frequency-division multiple access [FDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals
    • 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
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
    • H04L7/0334—Processing of samples having at least three levels, e.g. soft decisions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
HK07109110.9A 2001-03-09 2007-08-21 Method of symbol timing synchronization in communication systems HK1107200A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27489701P 2001-03-09 2001-03-09

Publications (1)

Publication Number Publication Date
HK1107200A1 true HK1107200A1 (en) 2008-03-28

Family

ID=23050067

Family Applications (1)

Application Number Title Priority Date Filing Date
HK07109110.9A HK1107200A1 (en) 2001-03-09 2007-08-21 Method of symbol timing synchronization in communication systems

Country Status (12)

Country Link
US (2) US7751448B2 (fr)
EP (2) EP1755256B1 (fr)
JP (1) JP4202144B2 (fr)
KR (1) KR100866781B1 (fr)
CN (1) CN100409608C (fr)
AT (2) ATE345618T1 (fr)
AU (1) AU2002240566A1 (fr)
DE (2) DE60236220D1 (fr)
ES (2) ES2275841T5 (fr)
HK (1) HK1107200A1 (fr)
TW (1) TW577202B (fr)
WO (1) WO2002073870A2 (fr)

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EP1919103B8 (fr) * 2006-11-02 2016-11-30 Google Technology Holdings LLC Procédé et appareil de correction automatique de fréquence dans un dispositif multimodal
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JP5031632B2 (ja) * 2008-03-26 2012-09-19 京セラ株式会社 無線通信方法、無線通信システム、基地局、移動局
US8199739B2 (en) 2008-03-29 2012-06-12 Qualcomm Incorporated Return link time adjustments in FDD OFDMA or SC-FDM systems
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JP2010041687A (ja) 2008-08-08 2010-02-18 Fujitsu Ltd 無線通信装置および無線通信制御方法
CN102187719B (zh) * 2008-10-28 2015-03-04 艾可慕株式会社 无线通信系统、中继系统、中继装置以及同步方法
JP5577937B2 (ja) * 2010-08-19 2014-08-27 富士通株式会社 無線通信システム、中継局、受信局及び無線通信方法
US20120106751A1 (en) * 2010-08-25 2012-05-03 Qualcomm Incorporated Methods and apparatus for wireless microphone synchronization
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US8718102B2 (en) 2011-12-15 2014-05-06 Intel Corporation Minimalistic LTE maintenance timing advance method
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Also Published As

Publication number Publication date
EP1755256B1 (fr) 2010-04-28
ES2275841T5 (es) 2010-07-12
DE60216055T2 (de) 2007-06-21
EP1366591B1 (fr) 2006-11-15
JP4202144B2 (ja) 2008-12-24
KR20030080253A (ko) 2003-10-11
WO2002073870A2 (fr) 2002-09-19
CN1504024A (zh) 2004-06-09
EP1366591A2 (fr) 2003-12-03
WO2002073870A3 (fr) 2003-07-03
US7881345B2 (en) 2011-02-01
US20070140395A1 (en) 2007-06-21
ATE345618T1 (de) 2006-12-15
DE60236220D1 (de) 2010-06-10
EP1755256A1 (fr) 2007-02-21
EP1366591B2 (fr) 2010-04-21
CN100409608C (zh) 2008-08-06
AU2002240566A1 (en) 2002-09-24
JP2005506720A (ja) 2005-03-03
DE60216055D1 (de) 2006-12-28
TW577202B (en) 2004-02-21
ATE466427T1 (de) 2010-05-15
ES2275841T3 (es) 2007-06-16
DE60216055T3 (de) 2010-10-28
ES2341876T3 (es) 2010-06-29
KR100866781B1 (ko) 2008-11-04
US7751448B2 (en) 2010-07-06
US20020126706A1 (en) 2002-09-12

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20140304