ATE483306T1 - Verfahren und vorrichtungen zum beseitigen von code-alias-elementen bei verwendung von kurzsynchronisationscodes - Google Patents

Verfahren und vorrichtungen zum beseitigen von code-alias-elementen bei verwendung von kurzsynchronisationscodes

Info

Publication number
ATE483306T1
ATE483306T1 AT04781093T AT04781093T ATE483306T1 AT E483306 T1 ATE483306 T1 AT E483306T1 AT 04781093 T AT04781093 T AT 04781093T AT 04781093 T AT04781093 T AT 04781093T AT E483306 T1 ATE483306 T1 AT E483306T1
Authority
AT
Austria
Prior art keywords
sequence
constrained portion
code
elimination
communication channel
Prior art date
Application number
AT04781093T
Other languages
English (en)
Inventor
Haitao Zhang
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
Application granted granted Critical
Publication of ATE483306T1 publication Critical patent/ATE483306T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
AT04781093T 2003-08-28 2004-08-12 Verfahren und vorrichtungen zum beseitigen von code-alias-elementen bei verwendung von kurzsynchronisationscodes ATE483306T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/650,271 US7869488B2 (en) 2003-08-28 2003-08-28 Method and apparatus for removing code aliases when using short synchronization codes
PCT/US2004/026349 WO2005025164A1 (en) 2003-08-28 2004-08-12 Method and apparatus for removing code aliases when using short synchronization codes

Publications (1)

Publication Number Publication Date
ATE483306T1 true ATE483306T1 (de) 2010-10-15

Family

ID=34217117

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04781093T ATE483306T1 (de) 2003-08-28 2004-08-12 Verfahren und vorrichtungen zum beseitigen von code-alias-elementen bei verwendung von kurzsynchronisationscodes

Country Status (8)

Country Link
US (1) US7869488B2 (de)
EP (3) EP1665692B1 (de)
JP (1) JP4486089B2 (de)
AT (1) ATE483306T1 (de)
CA (1) CA2535999A1 (de)
DE (1) DE602004029379D1 (de)
RU (1) RU2371870C2 (de)
WO (1) WO2005025164A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20070031A7 (fi) * 2007-01-12 2008-07-13 Eigenor Oy Tietoliikenne- ja kaukokartoitussovelluksia signaaleilla, jotka on koodattu täydellisillä koodeilla
US9048936B2 (en) 2012-01-02 2015-06-02 Qualcomm Incorporated Systems and methods for managing on-time of wireless receivers
CN107547106B (zh) * 2017-10-16 2019-08-13 杭州电子科技大学 多速率长短码直扩码分多址信号的长短码估计方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5623511A (en) * 1994-08-30 1997-04-22 Lucent Technologies Inc. Spread spectrum code pulse position modulated receiver having delay spread compensation
US5737327A (en) * 1996-03-29 1998-04-07 Motorola, Inc. Method and apparatus for demodulation and power control bit detection in a spread spectrum communication system
US5901185A (en) * 1996-04-15 1999-05-04 Ericsson Inc. Systems and methods for data-augmented, pilot-symbol-assisted radiotelephone communications
US6005886A (en) * 1996-08-05 1999-12-21 Digital Radio Communications Corp. Synchronization-free spread-spectrum demodulator
JP3441638B2 (ja) 1997-12-18 2003-09-02 株式会社エヌ・ティ・ティ・ドコモ チャネル推定値を求める装置および方法
GB9818378D0 (en) * 1998-08-21 1998-10-21 Nokia Mobile Phones Ltd Receiver
US6721293B1 (en) * 1999-03-10 2004-04-13 Nokia Corporation Unsupervised adaptive chip separation filter for CDMA terminal
US6515978B1 (en) * 1999-04-19 2003-02-04 Lucent Technologies Inc. Methods and apparatus for downlink diversity in CDMA using Walsh codes
FI112831B (fi) 1999-04-28 2004-01-15 Nokia Corp Menetelmä kanavaestimaatin muodostamiseksi ja vastaanotin
EP1257077A4 (de) 2000-02-17 2005-01-19 Linkair Comm Inc Verfahren für spreizband-mehrfachzugriffskodierung mit einem fenster mit nullkorrelation
US6661857B1 (en) * 2000-07-10 2003-12-09 Intersil Americas Inc. Rapid estimation of wireless channel impulse response
RU2192094C1 (ru) 2001-02-05 2002-10-27 Гармонов Александр Васильевич Способ когерентной разнесенной передачи сигнала
US6625203B2 (en) * 2001-04-30 2003-09-23 Interdigital Technology Corporation Fast joint detection
GB2376855A (en) * 2001-06-20 2002-12-24 Sony Uk Ltd Determining symbol synchronisation in an OFDM receiver in response to one of two impulse response estimates
US6956893B2 (en) * 2001-08-20 2005-10-18 Motorola, Inc. Linear minimum mean square error equalization with interference cancellation for mobile communication forward links utilizing orthogonal codes covered by long pseudorandom spreading codes
US7301993B2 (en) * 2002-09-13 2007-11-27 Broadcom Corporation Channel estimation in a spread spectrum receiver

Also Published As

Publication number Publication date
EP1665692A1 (de) 2006-06-07
HK1094841A1 (en) 2007-04-13
CA2535999A1 (en) 2005-03-17
RU2371870C2 (ru) 2009-10-27
WO2005025164A1 (en) 2005-03-17
US20050047490A1 (en) 2005-03-03
JP4486089B2 (ja) 2010-06-23
EP1665692B1 (de) 2010-09-29
DE602004029379D1 (de) 2010-11-11
JP2007504712A (ja) 2007-03-01
US7869488B2 (en) 2011-01-11
EP2194682A1 (de) 2010-06-09
RU2006109711A (ru) 2007-10-20
EP2194681A1 (de) 2010-06-09

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