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WO2008108294A1 - Approximately synchronized cdma transmitter/receiver - Google Patents

Approximately synchronized cdma transmitter/receiver Download PDF

Info

Publication number
WO2008108294A1
WO2008108294A1 PCT/JP2008/053627 JP2008053627W WO2008108294A1 WO 2008108294 A1 WO2008108294 A1 WO 2008108294A1 JP 2008053627 W JP2008053627 W JP 2008053627W WO 2008108294 A1 WO2008108294 A1 WO 2008108294A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission
code
spreading
section
control signal
Prior art date
Application number
PCT/JP2008/053627
Other languages
French (fr)
Japanese (ja)
Inventor
Shinya Matsufuji
Takahiro Matsumoto
Noriyoshi Kuroyanagi
Naoki Suehiro
Original Assignee
Yamaguchi University
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 Yamaguchi University filed Critical Yamaguchi University
Priority to JP2009502558A priority Critical patent/JPWO2008108294A1/en
Publication of WO2008108294A1 publication Critical patent/WO2008108294A1/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]

Landscapes

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

Abstract

An approximately synchronized CDMA transmitter/receiver enabling high-efficiency code division multi-dimensional connection at low cost by carrying out approximate synchronization control by using a ZCZ code. A transmitter/receiver uses an approximately synchronized CDMA communication scheme including transmission/reception code sets each composed of first and second spreading codes and a despreading code constituting a ZCZ code. This transmitter/receiver comprises a synchronization receiving section (46) for receiving synchronization control signal, a code set selection control section (42) for outputting a selection control signal for selecting a transmission/reception code set used for spreading from the transmission/reception code sets, a spreading section (43) for spreading transmission data with the first and second spreading codes of the transmission/reception code set selected according to the selection control signal and outputting the spread transmission data as a transmission sequence at a timing determined according to the synchronization control signal, a modulating section (44) for modulating the carrier wave with the transmission sequence, and a transmission output section (45) for transmitting the modulated carrier wave.
PCT/JP2008/053627 2007-03-05 2008-02-29 Approximately synchronized cdma transmitter/receiver WO2008108294A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009502558A JPWO2008108294A1 (en) 2007-03-05 2008-02-29 Approximate synchronous CDMA transceiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007054623 2007-03-05
JP2007-054623 2007-03-05

Publications (1)

Publication Number Publication Date
WO2008108294A1 true WO2008108294A1 (en) 2008-09-12

Family

ID=39738176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/053627 WO2008108294A1 (en) 2007-03-05 2008-02-29 Approximately synchronized cdma transmitter/receiver

Country Status (2)

Country Link
JP (1) JPWO2008108294A1 (en)
WO (1) WO2008108294A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010226565A (en) * 2009-03-25 2010-10-07 Toshiba Corp Railway vehicle transmission system
JP2010246107A (en) * 2009-04-08 2010-10-28 Mitsubishi Electric Research Laboratories Inc Method for communicating in oversampled ofdm network
JP2011049922A (en) * 2009-08-28 2011-03-10 Yamaguchi Univ Approximate synchronizing cdma communication system
JP2011114657A (en) * 2009-11-27 2011-06-09 Yamaguchi Univ Approximate synchronizing cdma communication system
JP2011114636A (en) * 2009-11-27 2011-06-09 Yamaguchi Univ Approximate synchronizing cdma communication system
JP2013521701A (en) * 2010-03-01 2013-06-10 アルカテル−ルーセント Method for in-band overlay of small cells in a macro cell
WO2014115693A1 (en) * 2013-01-23 2014-07-31 国立大学法人山口大学 Synchronization capture method, synchronization capture circuit and wireless communication system
CN104023386A (en) * 2013-03-01 2014-09-03 中兴通讯股份有限公司 Sending end, receiving end, frame synchronization method and frame synchronization system of sending end and receiving end
JP2016506643A (en) * 2012-11-30 2016-03-03 フラウンホファー‐ゲゼルシャフト・ツア・フェルデルング・デア・アンゲヴァンテン・フォルシュング・エー・ファウ Design and detection of preamble for ranging in optical OFDMA communication network

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1188232A (en) * 1997-09-16 1999-03-30 Uniden Corp Spread spectrum receiver and automatic gain control circuit for it
JP2002536870A (en) * 1999-01-29 2002-10-29 ピンツィ ファン Interference-free adaptive spread spectrum communication system using binary code sequence with uncorrelated region
JP2007049688A (en) * 2005-07-13 2007-02-22 Yamaguchi Univ Approximate synchronous CDMA communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1188232A (en) * 1997-09-16 1999-03-30 Uniden Corp Spread spectrum receiver and automatic gain control circuit for it
JP2002536870A (en) * 1999-01-29 2002-10-29 ピンツィ ファン Interference-free adaptive spread spectrum communication system using binary code sequence with uncorrelated region
JP2007049688A (en) * 2005-07-13 2007-02-22 Yamaguchi Univ Approximate synchronous CDMA communication system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010226565A (en) * 2009-03-25 2010-10-07 Toshiba Corp Railway vehicle transmission system
JP2010246107A (en) * 2009-04-08 2010-10-28 Mitsubishi Electric Research Laboratories Inc Method for communicating in oversampled ofdm network
JP2011049922A (en) * 2009-08-28 2011-03-10 Yamaguchi Univ Approximate synchronizing cdma communication system
JP2011114657A (en) * 2009-11-27 2011-06-09 Yamaguchi Univ Approximate synchronizing cdma communication system
JP2011114636A (en) * 2009-11-27 2011-06-09 Yamaguchi Univ Approximate synchronizing cdma communication system
JP2013521701A (en) * 2010-03-01 2013-06-10 アルカテル−ルーセント Method for in-band overlay of small cells in a macro cell
JP2016506643A (en) * 2012-11-30 2016-03-03 フラウンホファー‐ゲゼルシャフト・ツア・フェルデルング・デア・アンゲヴァンテン・フォルシュング・エー・ファウ Design and detection of preamble for ranging in optical OFDMA communication network
WO2014115693A1 (en) * 2013-01-23 2014-07-31 国立大学法人山口大学 Synchronization capture method, synchronization capture circuit and wireless communication system
JP6025157B2 (en) * 2013-01-23 2016-11-16 国立大学法人山口大学 Synchronization acquisition method, synchronization acquisition circuit, and wireless communication system
CN104023386A (en) * 2013-03-01 2014-09-03 中兴通讯股份有限公司 Sending end, receiving end, frame synchronization method and frame synchronization system of sending end and receiving end
WO2014131312A1 (en) * 2013-03-01 2014-09-04 中兴通讯股份有限公司 Frame synchronization method and system, transmitting terminal, receiving terminal and computer storage medium
CN104023386B (en) * 2013-03-01 2018-03-06 中兴通讯股份有限公司 Transmitting terminal, receiving terminal and its frame synchornization method, frame synchronization system

Also Published As

Publication number Publication date
JPWO2008108294A1 (en) 2010-06-17

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