BRPI0717759A2 - Método e aparelho para estimação de deslocamento de frequência portadora e sincronização de quadro em um sistema de comunicações sem fio - Google Patents

Método e aparelho para estimação de deslocamento de frequência portadora e sincronização de quadro em um sistema de comunicações sem fio

Info

Publication number
BRPI0717759A2
BRPI0717759A2 BRPI0717759-3A2A BRPI0717759A BRPI0717759A2 BR PI0717759 A2 BRPI0717759 A2 BR PI0717759A2 BR PI0717759 A BRPI0717759 A BR PI0717759A BR PI0717759 A2 BRPI0717759 A2 BR PI0717759A2
Authority
BR
Brazil
Prior art keywords
wireless communication
communication system
carrier frequency
frame synchronization
frequency displacement
Prior art date
Application number
BRPI0717759-3A2A
Other languages
English (en)
Inventor
Yuheng Huang
Ozgur Dural
Samir S Soliman
Amol Rajkotia
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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BRPI0717759A2 publication Critical patent/BRPI0717759A2/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
    • H04L7/04—Speed or phase control by synchronisation signals
    • 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
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
    • 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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04L27/2657—Carrier synchronisation
    • 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
    • H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
    • 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
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
BRPI0717759-3A2A 2006-10-26 2007-10-26 Método e aparelho para estimação de deslocamento de frequência portadora e sincronização de quadro em um sistema de comunicações sem fio BRPI0717759A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85487706P 2006-10-26 2006-10-26
PCT/US2007/082736 WO2008052192A1 (en) 2006-10-26 2007-10-26 Method and apparatus for carrier frequency offset estimation and frame synchronization in a wireless communications system

Publications (1)

Publication Number Publication Date
BRPI0717759A2 true BRPI0717759A2 (pt) 2013-11-12

Family

ID=38988173

Family Applications (3)

Application Number Title Priority Date Filing Date
BRPI0718364-0A BRPI0718364A2 (pt) 2006-10-26 2007-10-26 Método e equipamento de pacote em um sistema de comunicação sem fio
BRPI0717724-0A BRPI0717724A2 (pt) 2006-10-26 2007-10-26 Método e equipamento para estimação de temporização de símbolos em um sistema de comunicação sem fio.
BRPI0717759-3A2A BRPI0717759A2 (pt) 2006-10-26 2007-10-26 Método e aparelho para estimação de deslocamento de frequência portadora e sincronização de quadro em um sistema de comunicações sem fio

Family Applications Before (2)

Application Number Title Priority Date Filing Date
BRPI0718364-0A BRPI0718364A2 (pt) 2006-10-26 2007-10-26 Método e equipamento de pacote em um sistema de comunicação sem fio
BRPI0717724-0A BRPI0717724A2 (pt) 2006-10-26 2007-10-26 Método e equipamento para estimação de temporização de símbolos em um sistema de comunicação sem fio.

Country Status (10)

Country Link
US (3) US8045631B2 (pt)
EP (3) EP2087679A1 (pt)
JP (3) JP4944203B2 (pt)
KR (4) KR101132561B1 (pt)
CN (3) CN101573931B (pt)
BR (3) BRPI0718364A2 (pt)
CA (3) CA2664916A1 (pt)
RU (3) RU2427094C2 (pt)
TW (3) TWI379531B (pt)
WO (3) WO2008052192A1 (pt)

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Also Published As

Publication number Publication date
RU2009119743A (ru) 2010-12-10
RU2425460C2 (ru) 2011-07-27
CA2665157A1 (en) 2008-05-02
CA2665157C (en) 2013-05-21
EP2087679A1 (en) 2009-08-12
EP2090005A2 (en) 2009-08-19
JP4991871B2 (ja) 2012-08-01
KR20090077829A (ko) 2009-07-15
TWI360334B (en) 2012-03-11
WO2008052196A1 (en) 2008-05-02
KR20090073239A (ko) 2009-07-02
BRPI0718364A2 (pt) 2013-11-12
US20080101439A1 (en) 2008-05-01
WO2008052192A1 (en) 2008-05-02
JP5237293B2 (ja) 2013-07-17
KR101132561B1 (ko) 2012-04-02
JP2010508721A (ja) 2010-03-18
CA2665159C (en) 2012-10-30
RU2009119732A (ru) 2010-12-10
TW200828854A (en) 2008-07-01
US8045631B2 (en) 2011-10-25
CN101606340A (zh) 2009-12-16
TWI399046B (zh) 2013-06-11
JP2010508726A (ja) 2010-03-18
WO2008052200A3 (en) 2009-06-18
KR20120011099A (ko) 2012-02-06
KR20090068295A (ko) 2009-06-25
TWI379531B (en) 2012-12-11
US20080101520A1 (en) 2008-05-01
KR101098352B1 (ko) 2011-12-26
RU2009119752A (ru) 2010-12-10
JP4944203B2 (ja) 2012-05-30
CN101529844A (zh) 2009-09-09
CN101529844B (zh) 2013-12-11
CN101573931B (zh) 2012-11-14
US8107561B2 (en) 2012-01-31
BRPI0717724A2 (pt) 2013-10-29
US20080101504A1 (en) 2008-05-01
KR101140053B1 (ko) 2012-05-02
RU2426238C2 (ru) 2011-08-10
US7974329B2 (en) 2011-07-05
CN101573931A (zh) 2009-11-04
TW200828845A (en) 2008-07-01
WO2008052200A2 (en) 2008-05-02
KR101226119B1 (ko) 2013-01-24
EP2087681A1 (en) 2009-08-12
RU2427094C2 (ru) 2011-08-20
TW200833038A (en) 2008-08-01
CA2664916A1 (en) 2008-05-02
CA2665159A1 (en) 2008-05-02
JP2010508725A (ja) 2010-03-18

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