AU2000228758A1 - Asymmetrical forward/reverse transmission bandwidth in a cdma system - Google Patents

Asymmetrical forward/reverse transmission bandwidth in a cdma system

Info

Publication number
AU2000228758A1
AU2000228758A1 AU2000228758A AU2875800A AU2000228758A1 AU 2000228758 A1 AU2000228758 A1 AU 2000228758A1 AU 2000228758 A AU2000228758 A AU 2000228758A AU 2875800 A AU2875800 A AU 2875800A AU 2000228758 A1 AU2000228758 A1 AU 2000228758A1
Authority
AU
Australia
Prior art keywords
transmission bandwidth
cdma system
reverse transmission
code sequence
data rate
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
AU2000228758A
Inventor
Fatih Ozluturk
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.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology Corp
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 InterDigital Technology Corp filed Critical InterDigital Technology Corp
Publication of AU2000228758A1 publication Critical patent/AU2000228758A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker
    • 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
    • H04J13/10—Code generation
    • 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)
  • Mobile Radio Communication Systems (AREA)
  • Control Of Transmission Device (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Steroid Compounds (AREA)

Abstract

The present invention provides a method for a communication system utilizing spreading code sequences, the system comprising: (a) a first generator which outputs a first repetitious code sequence at a first data rate; and (b) a second generator which outputs a second repetitious code sequence at a second data rate which is higher than the first data rate, wherein the first code sequence is truncated each time the second code sequence is repeated. <IMAGE>
AU2000228758A 2000-02-10 2000-02-10 Asymmetrical forward/reverse transmission bandwidth in a cdma system Abandoned AU2000228758A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/003332 WO2001059949A1 (en) 2000-02-10 2000-02-10 Asymmetrical forward/reverse transmission bandwidth in a cdma system

Publications (1)

Publication Number Publication Date
AU2000228758A1 true AU2000228758A1 (en) 2001-08-20

Family

ID=21741050

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2000228758A Abandoned AU2000228758A1 (en) 2000-02-10 2000-02-10 Asymmetrical forward/reverse transmission bandwidth in a cdma system

Country Status (12)

Country Link
EP (2) EP1501204B1 (en)
JP (1) JP3985522B2 (en)
KR (1) KR100659006B1 (en)
CN (1) CN1160871C (en)
AT (2) ATE324712T1 (en)
AU (1) AU2000228758A1 (en)
CA (1) CA2343170A1 (en)
DE (1) DE60015315T2 (en)
DK (1) DK1169781T3 (en)
ES (2) ES2230069T3 (en)
HK (1) HK1044642B (en)
WO (1) WO2001059949A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100774157B1 (en) * 2001-04-06 2007-11-07 엘지전자 주식회사 Clock generation circuit in code division multiple access phone
JP3802372B2 (en) * 2001-05-16 2006-07-26 株式会社エヌ・ティ・ティ・ドコモ Mobile communication system
JP4840043B2 (en) * 2006-09-21 2011-12-21 ソニー株式会社 Wireless communication system and wireless communication apparatus
EP1909513A1 (en) * 2006-10-04 2008-04-09 Nec Technologies (UK) Limited Communication interface between a terminal and a UICC
KR101717948B1 (en) * 2015-12-28 2017-03-20 호서대학교 산학협력단 Underwater communication system
US11291041B2 (en) * 2018-04-05 2022-03-29 Mediatek Inc. Simultaneous uplink transmissions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5946344A (en) * 1997-04-07 1999-08-31 Intermec Ip Corp. Multiple-rate direct sequence architecture utilizing a fixed chipping rate and variable spreading code lengths
WO1999000911A1 (en) * 1997-06-26 1999-01-07 Samsung Electronics Co., Ltd. Asymmetric channel allocation for a mobile station in a cdma communication network

Also Published As

Publication number Publication date
JP3985522B2 (en) 2007-10-03
DE60015315T2 (en) 2005-10-20
HK1044642B (en) 2005-02-25
EP1169781A1 (en) 2002-01-09
DE60015315D1 (en) 2004-12-02
JP2003523128A (en) 2003-07-29
WO2001059949A1 (en) 2001-08-16
KR100659006B1 (en) 2006-12-21
EP1501204B1 (en) 2006-04-26
KR20010113631A (en) 2001-12-28
EP1169781B1 (en) 2004-10-27
ATE324712T1 (en) 2006-05-15
CN1160871C (en) 2004-08-04
ATE281028T1 (en) 2004-11-15
DK1169781T3 (en) 2005-02-14
HK1044642A1 (en) 2002-10-25
CN1336042A (en) 2002-02-13
EP1501204A1 (en) 2005-01-26
ES2230069T3 (en) 2005-05-01
ES2263100T3 (en) 2006-12-01
CA2343170A1 (en) 2001-08-10

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