DE69434699D1 - Verfahren zur signalqualitätsverbesserung durch anpassung der verspreizungsratio in einer zellularen cdma funktelefonanordnung - Google Patents

Verfahren zur signalqualitätsverbesserung durch anpassung der verspreizungsratio in einer zellularen cdma funktelefonanordnung

Info

Publication number
DE69434699D1
DE69434699D1 DE69434699T DE69434699T DE69434699D1 DE 69434699 D1 DE69434699 D1 DE 69434699D1 DE 69434699 T DE69434699 T DE 69434699T DE 69434699 T DE69434699 T DE 69434699T DE 69434699 D1 DE69434699 D1 DE 69434699D1
Authority
DE
Germany
Prior art keywords
connection
spreading
signal quality
adjusting
ratio
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.)
Expired - Lifetime
Application number
DE69434699T
Other languages
English (en)
Other versions
DE69434699T2 (de
Inventor
Ilkka Keskitalo
Arto Kiema
Jari Savusalo
Anne Siira
Ari Kaerkkaeinen
Risto Uola
Ingo Kuehn
Ari Hottinen
Petri Jolma
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Publication of DE69434699D1 publication Critical patent/DE69434699D1/de
Application granted granted Critical
Publication of DE69434699T2 publication Critical patent/DE69434699T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Electromechanical Clocks (AREA)
  • Optical Measuring Cells (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmitters (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE69434699T 1993-10-04 1994-10-03 Verfahren zur signalqualitätsverbesserung durch anpassung der verspreizungsratio in einer zellularen cdma funktelefonanordnung Expired - Lifetime DE69434699T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI934353 1993-10-04
FI934353A FI110042B (fi) 1993-10-04 1993-10-04 Solukkoradiojärjestelmä
PCT/FI1994/000441 WO1995010145A1 (en) 1993-10-04 1994-10-03 Method of increasing signal quality by adjusting the spreading ratio in a cdma cellular radio system

Publications (2)

Publication Number Publication Date
DE69434699D1 true DE69434699D1 (de) 2006-05-24
DE69434699T2 DE69434699T2 (de) 2007-04-12

Family

ID=8538706

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69434699T Expired - Lifetime DE69434699T2 (de) 1993-10-04 1994-10-03 Verfahren zur signalqualitätsverbesserung durch anpassung der verspreizungsratio in einer zellularen cdma funktelefonanordnung

Country Status (9)

Country Link
EP (1) EP0722636B1 (de)
JP (1) JPH09505953A (de)
CN (1) CN1064203C (de)
AT (1) ATE323347T1 (de)
AU (1) AU678602B2 (de)
DE (1) DE69434699T2 (de)
FI (1) FI110042B (de)
NO (1) NO961383L (de)
WO (1) WO1995010145A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030236070A1 (en) 2002-06-25 2003-12-25 Seligsohn Sherwin I. Sub-orbital, high altitude communications system
FI97505C (fi) * 1994-11-29 1996-12-27 Nokia Telecommunications Oy Tiedonsiirtomenetelmä, lähetin ja vastaanotin
FI97583C (fi) * 1995-02-02 1997-01-10 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä, lähetin ja vastaanotin
US5896368A (en) * 1995-05-01 1999-04-20 Telefonaktiebolaget Lm Ericsson Multi-code compressed mode DS-CDMA systems and methods
US5619492A (en) * 1995-06-16 1997-04-08 Unisys Corporation CDMA communication system in which bit rates are dynamically allocated
US5805585A (en) * 1996-08-22 1998-09-08 At&T Corp. Method for providing high speed packet data services for a wireless system
US6512750B1 (en) 1999-04-16 2003-01-28 Telefonaktiebolaget Lm Ericsson (Publ) Power setting in CDMA systems employing discontinuous transmission
GB2351632B (en) * 1999-06-28 2003-10-29 Nokia Telecommunications Oy Manipulating physical channels having different spreading ratios in a CDMA rad io system
US6535523B1 (en) * 1999-09-30 2003-03-18 Qualcomm Incorporated System and method for persistence vector based rate assignment
US6741577B1 (en) * 1999-11-29 2004-05-25 Koninklijke Philips Electronics N.V. Inter-frequency handover in wireless CDMA systems
FR2806158B1 (fr) * 2000-03-07 2002-05-17 Commissariat Energie Atomique Procede pour determiner la position ou l'orientation d'un objet a l'aide d'un champ magnetique et dispositif correspondant
JP4086833B2 (ja) 2004-10-27 2008-05-14 日本電波工業株式会社 高周波無線機の制御方法及び高周波無線機システム
CN110047503B (zh) * 2018-09-25 2021-04-16 上海无线通信研究中心 一种声波的多径效应抑制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448593A (en) * 1984-03-06 1995-09-05 Cyplex Corporation Frequency hopping time-diversity communications systems and transceivers for local area networks
GB8516581D0 (en) * 1985-07-01 1985-08-07 Secr Defence Serial data highway system
CH676179A5 (de) * 1988-09-29 1990-12-14 Ascom Zelcom Ag
AU642571B2 (en) * 1991-01-21 1993-10-21 Sony Corporation Spread spectrum signal receiving apparatus
US5274667A (en) * 1992-10-23 1993-12-28 David Olmstead Adaptive data rate packet communications system
US5396516A (en) * 1993-02-22 1995-03-07 Qualcomm Incorporated Method and system for the dynamic modification of control paremeters in a transmitter power control system
US5341396A (en) * 1993-03-02 1994-08-23 The Boeing Company Multi-rate spread system
US5335249A (en) * 1993-07-29 1994-08-02 Seattle Silicon Corporation Method and apparatus for spread spectrum communications

Also Published As

Publication number Publication date
CN1064203C (zh) 2001-04-04
EP0722636A1 (de) 1996-07-24
FI110042B (fi) 2002-11-15
ATE323347T1 (de) 2006-04-15
CN1132581A (zh) 1996-10-02
AU678602B2 (en) 1997-06-05
WO1995010145A1 (en) 1995-04-13
DE69434699T2 (de) 2007-04-12
JPH09505953A (ja) 1997-06-10
NO961383D0 (no) 1996-04-03
FI934353A0 (fi) 1993-10-04
FI934353A (fi) 1995-04-05
AU7701094A (en) 1995-05-01
EP0722636B1 (de) 2006-04-12
NO961383L (no) 1996-06-03

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