JP4664286B2 - Ｃｄｍａ受信機、受信信号の相関をとるための装置及び方法 - Google Patents

Ｃｄｍａ受信機、受信信号の相関をとるための装置及び方法 Download PDF

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JP4664286B2
JP4664286B2 JP2006517838A JP2006517838A JP4664286B2 JP 4664286 B2 JP4664286 B2 JP 4664286B2 JP 2006517838 A JP2006517838 A JP 2006517838A JP 2006517838 A JP2006517838 A JP 2006517838A JP 4664286 B2 JP4664286 B2 JP 4664286B2
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signal
correlation
frequency adjustment
synchronization code
correlator
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JP2007525101A (ja
JP2007525101A5 (https=
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ロバート リトウイン，ルイス
シエルボーン キール，アルトン
ガオ，ウエン
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Thomson Licensing SAS
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    • 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
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/70735—Code identification
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7083—Cell search, e.g. using a three-step approach
    • 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
    • H04B1/7093—Matched filter type

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2006517838A 2003-07-02 2004-07-01 Ｃｄｍａ受信機、受信信号の相関をとるための装置及び方法 Expired - Fee Related JP4664286B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/612,310 US7684472B2 (en) 2003-07-02 2003-07-02 Method and apparatus for frequency-robust detection of a wideband code division multiple access secondary synchronization channel
PCT/US2004/021304 WO2005002312A2 (en) 2003-07-02 2004-07-01 Method and apparatus for frequency-robust detection of a wideband code division multiple access secondary synchronization channel

Publications (3)

Publication Number Publication Date
JP2007525101A JP2007525101A (ja) 2007-08-30
JP2007525101A5 JP2007525101A5 (https=) 2009-01-15
JP4664286B2 true JP4664286B2 (ja) 2011-04-06

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JP2006517838A Expired - Fee Related JP4664286B2 (ja) 2003-07-02 2004-07-01 Ｃｄｍａ受信機、受信信号の相関をとるための装置及び方法

Country Status (8)

Country Link
US (1) US7684472B2 (https=)
EP (1) EP1638448A4 (https=)
JP (1) JP4664286B2 (https=)
KR (1) KR20060025588A (https=)
CN (1) CN1890933A (https=)
BR (1) BRPI0412024A (https=)
MX (1) MXPA05013953A (https=)
WO (1) WO2005002312A2 (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006080904A1 (en) 2005-01-14 2006-08-03 Thomson Licensing Method and system for sub-chip resolution for secondary cell search
CN101103547A (zh) * 2005-01-14 2008-01-09 汤姆森特许公司 使用执行扰码确定的瑞克搜索器的小区搜索
WO2006078233A1 (en) * 2005-01-14 2006-07-27 Thomson Licensing Ram-based scrambling code generator for cdma
US8223623B2 (en) * 2005-03-28 2012-07-17 Qualcomm Incorporated Timing and frequency acquisition for OFDM systems
CN101197804B (zh) * 2006-12-04 2011-09-21 华为技术有限公司 一种同步处理方法及系统
US8457178B2 (en) * 2007-03-26 2013-06-04 Qualcomm Incorporated Frequency offset estimator
KR101512334B1 (ko) * 2008-09-09 2015-04-15 삼성전자주식회사 비동기식 이동통신 시스템에서 셀 탐색 방법 및 장치
US20100124175A1 (en) * 2008-11-14 2010-05-20 Chi-Tung Chang Apparatus and method for adaptively calculating symbolic start position
KR101507087B1 (ko) * 2009-01-07 2015-03-30 삼성전자주식회사 광대역 무선통신 시스템에서 부 동기 채널 송수신 장치 및 방법
CN102769477B (zh) * 2011-05-06 2014-08-27 普天信息技术研究院有限公司 实现小区搜索和下行同步的方法和系统
US9215622B1 (en) * 2012-07-30 2015-12-15 GoNet Systems Ltd. Method and systems for associating wireless transmission with directions-of-arrival thereof
TWI510034B (zh) * 2013-12-02 2015-11-21 Realtek Semiconductor Corp 載波頻率偏移校正方法以及機器可讀媒體
KR102341299B1 (ko) * 2015-02-11 2021-12-21 삼성전자주식회사 셀 탐색 및 주파수 옵셋 추정 방법 및 장치
CN108738123B (zh) * 2017-04-14 2020-12-25 普天信息技术有限公司 一种同步信号发送方法和装置

Family Cites Families (15)

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US5414729A (en) * 1992-01-24 1995-05-09 Novatel Communications Ltd. Pseudorandom noise ranging receiver which compensates for multipath distortion by making use of multiple correlator time delay spacing
JP3289851B2 (ja) * 1993-06-03 2002-06-10 ソニー株式会社 無線装置
JP2741336B2 (ja) * 1993-11-26 1998-04-15 エヌ・ティ・ティ移動通信網株式会社 帯域拡散信号受信機の周波数誤差補正装置
US6526091B1 (en) * 1998-08-17 2003-02-25 Telefonaktiebolaget Lm Ericsson Communication methods and apparatus based on orthogonal hadamard-based sequences having selected correlation properties
US6298227B1 (en) * 1998-12-22 2001-10-02 Ericsson Inc. Method and apparatus for frequency conversion for a receiver with a limited-accuracy oscillator
US6567482B1 (en) * 1999-03-05 2003-05-20 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for efficient synchronization in spread spectrum communications
US7039036B1 (en) * 1999-04-01 2006-05-02 Texas Instruments Incorporated Reduced complexity primary and secondary synchronization codes with good correlation properties for WCDMA
SG90052A1 (en) * 1999-05-28 2002-07-23 Oki Techno Ct Singapore Pte A cdma receiver
KR100319927B1 (ko) * 2000-01-11 2002-01-09 윤종용 비동기식 광대역 직접 시퀀스 코드분할다중접속 수신기의셀 탐색 장치 및 각 셀에 고유한 코드 획득 방법
JP2002009670A (ja) * 2000-06-23 2002-01-11 Hitachi Ltd 同期捕捉回路
JP3394530B2 (ja) * 2001-08-07 2003-04-07 松下電器産業株式会社 セルサーチ装置およびセルサーチ方法
GB2386444B (en) * 2002-03-12 2004-05-26 Toshiba Res Europ Ltd Digital correlators
US7126981B2 (en) * 2002-04-25 2006-10-24 Accton Technology Corporation Method and apparatus for cell search for W-CDMA with effect of clock offset
TWI224740B (en) * 2002-07-31 2004-12-01 Interdigital Tech Corp Start-up automatic frequency control (AFC) method and apparatus
US7315600B2 (en) * 2004-03-30 2008-01-01 Arm Limited Asynchronous FIFO apparatus and method for passing data between a first clock domain and a second clock domain and a second clock domain of a data processing apparatus

Also Published As

Publication number Publication date
US7684472B2 (en) 2010-03-23
CN1890933A (zh) 2007-01-03
BRPI0412024A (pt) 2006-08-15
EP1638448A2 (en) 2006-03-29
MXPA05013953A (es) 2006-05-31
WO2005002312A2 (en) 2005-01-13
JP2007525101A (ja) 2007-08-30
KR20060025588A (ko) 2006-03-21
EP1638448A4 (en) 2011-09-28
US20050002446A1 (en) 2005-01-06
WO2005002312A3 (en) 2006-05-18

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