AU2003207396A1 - Modulating and demodulating methods for increasing the transmitting rate and improving the ber in cdma communication system - Google Patents

Modulating and demodulating methods for increasing the transmitting rate and improving the ber in cdma communication system

Info

Publication number
AU2003207396A1
AU2003207396A1 AU2003207396A AU2003207396A AU2003207396A1 AU 2003207396 A1 AU2003207396 A1 AU 2003207396A1 AU 2003207396 A AU2003207396 A AU 2003207396A AU 2003207396 A AU2003207396 A AU 2003207396A AU 2003207396 A1 AU2003207396 A1 AU 2003207396A1
Authority
AU
Australia
Prior art keywords
ber
modulating
improving
increasing
communication system
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2003207396A
Inventor
Hyung-Yun Kong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU2003207396A1 publication Critical patent/AU2003207396A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
AU2003207396A 2002-02-21 2003-02-14 Modulating and demodulating methods for increasing the transmitting rate and improving the ber in cdma communication system Abandoned AU2003207396A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR2002/009342 2002-02-21
KR10-2002-0009342A KR100478255B1 (en) 2002-02-21 2002-02-21 Modulating and demodulating method for increasing the transmitting rate and improving the ber in the cdma communication system
PCT/KR2003/000318 WO2003071702A1 (en) 2002-02-21 2003-02-14 Modulating and demodulating methods for increasing the transmitting rate and improving the ber in cdma communication system

Publications (1)

Publication Number Publication Date
AU2003207396A1 true AU2003207396A1 (en) 2003-09-09

Family

ID=27751911

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003207396A Abandoned AU2003207396A1 (en) 2002-02-21 2003-02-14 Modulating and demodulating methods for increasing the transmitting rate and improving the ber in cdma communication system

Country Status (3)

Country Link
KR (1) KR100478255B1 (en)
AU (1) AU2003207396A1 (en)
WO (1) WO2003071702A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100444845B1 (en) * 2002-04-12 2004-08-21 주식회사 카서 Coding method and apparatus for constant amplitude transmission in code select cdma communication system and device thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263018A (en) * 1992-07-29 1993-11-16 Thomson Consumer Electronics, Inc. Apparatus for time division multiplexed processing of plural QAM signals
JP3136076B2 (en) * 1994-06-08 2001-02-19 キヤノン株式会社 Code division multiplex modem
JPH0879325A (en) * 1994-09-05 1996-03-22 Hitachi Ltd Transmission reception method for qam signal and transmitter-receiver
US5838268A (en) * 1997-03-14 1998-11-17 Orckit Communications Ltd. Apparatus and methods for modulation and demodulation of data
JP3088352B2 (en) * 1997-08-18 2000-09-18 エヌイーシーワイヤレスネットワークス株式会社 Multi-level QAM demodulator
KR100269593B1 (en) * 1997-12-02 2000-10-16 정선종 Orthogonal complex spreading based modulation method for multichannel transmission
US6721339B2 (en) * 1999-08-17 2004-04-13 Lucent Technologies Inc. Method of providing downlink transmit diversity
KR100416640B1 (en) * 2001-05-26 2004-02-05 학교법인대우학원 OFDM-CDMA Transmission Method Using Orthogonal Code Multiplexing and Its Transmitter and Receiver

Also Published As

Publication number Publication date
KR20030069528A (en) 2003-08-27
WO2003071702A1 (en) 2003-08-28
KR100478255B1 (en) 2005-03-25

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase