WO2005053258A3 - Method and apparatus of frequency estimation for the downlink of td-scdma systems - Google Patents

Method and apparatus of frequency estimation for the downlink of td-scdma systems Download PDF

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Publication number
WO2005053258A3
WO2005053258A3 PCT/IB2004/052587 IB2004052587W WO2005053258A3 WO 2005053258 A3 WO2005053258 A3 WO 2005053258A3 IB 2004052587 W IB2004052587 W IB 2004052587W WO 2005053258 A3 WO2005053258 A3 WO 2005053258A3
Authority
WO
WIPO (PCT)
Prior art keywords
midamble
synchronization code
downlink
downlink synchronization
radio signals
Prior art date
Application number
PCT/IB2004/052587
Other languages
French (fr)
Other versions
WO2005053258A2 (en
Inventor
Yan Li
Luzhou Xu
Yanzhong Dai
Original Assignee
Koninkl Philips Electronics Nv
Yan Li
Luzhou Xu
Yanzhong Dai
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 Koninkl Philips Electronics Nv, Yan Li, Luzhou Xu, Yanzhong Dai filed Critical Koninkl Philips Electronics Nv
Priority to US10/580,728 priority Critical patent/US20070133611A1/en
Priority to CNA2004800350141A priority patent/CN1886957A/en
Priority to JP2006540765A priority patent/JP2007515109A/en
Priority to EP04799270A priority patent/EP1692835A2/en
Publication of WO2005053258A2 publication Critical patent/WO2005053258A2/en
Publication of WO2005053258A3 publication Critical patent/WO2005053258A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • 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
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0067—Phase error detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

A method of frequency estimation for the downlink of wireless communication systems, comprising steps of: determining, according to the received radio signals , the phase shift of the midamble and that of the downlink synchronization code of the radio signals respectively; calculating the phase shift difference between the midamble and the downlink synchronization code of the radio signals, according to the determined phase shift of the midamble and that of the downlink synchronization code; estimating the frequency offset of the radio signals , according to the phase shift difference between the midamble and the downlink synchronization code of the radio signals and the relationship between the expected midamble and the downlink synchronization code, e.g. the time interval between the midamble and the downlink synchronization code in communication protocols.
PCT/IB2004/052587 2003-11-28 2004-11-29 Method and apparatus of frequency estimation for the downlink of td-scdma systems WO2005053258A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/580,728 US20070133611A1 (en) 2003-11-28 2004-11-29 Method and apparatus of frequency estimation for the downlink of td-scdma systems
CNA2004800350141A CN1886957A (en) 2003-11-28 2004-11-29 Apparatus and method for frequency estimation of TD-SCDMA system downlink
JP2006540765A JP2007515109A (en) 2003-11-28 2004-11-29 Frequency estimation method and apparatus for downlink of TD-SCDMA system
EP04799270A EP1692835A2 (en) 2003-11-28 2004-11-29 Method and apparatus of frequency estimation for the downlink of td-scdma systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200310115793.3 2003-11-28
CNA2003101157933A CN1622653A (en) 2003-11-28 2003-11-28 Apparatus and method for frequency estimation of TD-SCDMA system downlink

Publications (2)

Publication Number Publication Date
WO2005053258A2 WO2005053258A2 (en) 2005-06-09
WO2005053258A3 true WO2005053258A3 (en) 2005-08-25

Family

ID=34624433

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/052587 WO2005053258A2 (en) 2003-11-28 2004-11-29 Method and apparatus of frequency estimation for the downlink of td-scdma systems

Country Status (5)

Country Link
US (1) US20070133611A1 (en)
EP (1) EP1692835A2 (en)
JP (1) JP2007515109A (en)
CN (2) CN1622653A (en)
WO (1) WO2005053258A2 (en)

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KR100548416B1 (en) * 2003-10-28 2006-02-02 엘지전자 주식회사 Radio frame synchronization method
CN1798118A (en) * 2004-12-24 2006-07-05 展讯通信（上海）有限公司 Method for estimating frequency deviation accurately in TD-SCDMA
US7539125B2 (en) * 2005-10-14 2009-05-26 Via Technologies, Inc. Method and circuit for frequency offset estimation in frequency domain in the orthogonal frequency division multiplexing baseband receiver for IEEE 802.11A/G wireless LAN standard
US7894554B2 (en) * 2005-10-31 2011-02-22 Lg Electronics Inc. Apparatus for performing initial synchronization and frame synchronization in mobile communications system and method thereof
KR101138698B1 (en) * 2005-11-09 2012-04-19 엘지전자 주식회사 Method and apparatus for estimating frequency offset in mobile communications system
KR20080086907A (en) * 2005-12-23 2008-09-26 엔엑스피 비 브이 Flow control mechanisms on synchronous serial tdma bus
CN101001231B (en) * 2006-01-12 2011-11-30 上海原动力通信科技有限公司 Frequency deviation correction method and cell initial search method of broadband time-division duplex cellular system
CN101039126B (en) * 2006-03-16 2012-01-25 湖北众友科技实业股份有限公司 Method and system of phase deviation measurement for testing TD-SCDMA terminal
US8305943B2 (en) * 2006-05-18 2012-11-06 Qualcomm Incorporated Half-duplex communication in a frequency division duplex system
CN101026607B (en) * 2007-01-23 2010-07-07 北京天碁科技有限公司 Common frequency community downlink synchronous code detecting method and device
CN101047422B (en) * 2007-04-30 2011-10-05 重庆重邮信科通信技术有限公司 Method for implementing synchronous under code stage of time-division-synchronous CDMA system
CN101102293B (en) * 2007-07-31 2011-07-20 北京天碁科技有限公司 A frequency deviation estimation device and method
CN101388716B (en) * 2007-09-13 2012-11-21 鼎桥通信技术有限公司 Wireless sub-frame transmission method and system
KR101646522B1 (en) * 2010-04-06 2016-08-08 삼성전자주식회사 Apparatus and method for frequency offset estimation in mobile communication system
CN102223322B (en) 2010-04-15 2014-11-05 中兴通讯股份有限公司 Estimation method and apparatus for frequency offset
US8874111B2 (en) * 2010-08-12 2014-10-28 Qualcomm Incorporated Uplink synchronization of TD-SCDMA multiple USIM mobile terminal during handover
CN102740409B (en) * 2011-04-13 2015-01-07 联芯科技有限公司 Method and apparatus for sequencing frequency points
CN102790993B (en) * 2011-05-19 2015-05-20 联芯科技有限公司 Method and device for measuring frequency point power during cell-search stage
JP5803795B2 (en) 2012-04-20 2015-11-04 富士通株式会社 Receiver, frequency deviation calculation method, and computer program
JP5992638B2 (en) * 2013-01-16 2016-09-14 エヌイーシー（チャイナ）カンパニー， リミテッドＮＥＣ（Ｃｈｉｎａ）Ｃｏ．，Ｌｔｄ． Method and apparatus for performing TTI bundling in a TDD system
KR102097693B1 (en) * 2013-07-26 2020-04-06 삼성전자주식회사 Multi-path search apparatus and method in a wireless communication system
US10778143B2 (en) * 2017-09-14 2020-09-15 Qualcomm Incorporated Techniques and apparatuses for mitigating voltage controlled oscillator frequency disturbance
CN109302365B (en) * 2017-12-21 2024-03-26 上海创远仪器技术股份有限公司 TD-SCDMA analyzer frequency offset estimation method based on multistage difference method
BR112022018524A2 (en) * 2020-03-18 2022-10-25 Ericsson Telefon Ab L M TRANSMISSION AND RECEPTION OF A PHYSICAL LAYER PACKAGE WITH MIDAMBLES
US11300674B2 (en) 2020-04-15 2022-04-12 Bae Systems Information And Electronic Systems Integration Inc. Angle of arrival correlation using normalized phase

Citations (3)

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Publication number Priority date Publication date Assignee Title
GB2344493A (en) * 1998-09-12 2000-06-07 Roke Manor Research Automatic frequency correction
WO2003024042A1 (en) * 2001-09-13 2003-03-20 Redline Communications Inc. Method and apparatus for multiple resolution carrier offset recovery
US6618452B1 (en) * 1998-06-08 2003-09-09 Telefonaktiebolaget Lm Ericsson (Publ) Burst carrier frequency synchronization and iterative frequency-domain frame synchronization for OFDM

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JP3407706B2 (en) * 1999-11-30 2003-05-19 日本電気株式会社 CDMA portable telephone apparatus and drive mode setting / cancelling method used therefor
EP1347611A1 (en) * 2002-03-20 2003-09-24 Siemens Information and Communication Networks S.p.A. Data aided frequency synchronisation
US7894554B2 (en) * 2005-10-31 2011-02-22 Lg Electronics Inc. Apparatus for performing initial synchronization and frame synchronization in mobile communications system and method thereof
KR101138698B1 (en) * 2005-11-09 2012-04-19 엘지전자 주식회사 Method and apparatus for estimating frequency offset in mobile communications system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618452B1 (en) * 1998-06-08 2003-09-09 Telefonaktiebolaget Lm Ericsson (Publ) Burst carrier frequency synchronization and iterative frequency-domain frame synchronization for OFDM
GB2344493A (en) * 1998-09-12 2000-06-07 Roke Manor Research Automatic frequency correction
WO2003024042A1 (en) * 2001-09-13 2003-03-20 Redline Communications Inc. Method and apparatus for multiple resolution carrier offset recovery

Also Published As

Publication number Publication date
JP2007515109A (en) 2007-06-07
EP1692835A2 (en) 2006-08-23
US20070133611A1 (en) 2007-06-14
WO2005053258A2 (en) 2005-06-09
CN1622653A (en) 2005-06-01
CN1886957A (en) 2006-12-27

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