FI110042B - Cellulärt radiosystem - Google Patents

Cellulärt radiosystem Download PDF

Info

Publication number
FI110042B
FI110042B FI934353A FI934353A FI110042B FI 110042 B FI110042 B FI 110042B FI 934353 A FI934353 A FI 934353A FI 934353 A FI934353 A FI 934353A FI 110042 B FI110042 B FI 110042B
Authority
FI
Finland
Prior art keywords
base station
connection
signal
bts
spreading
Prior art date
Application number
FI934353A
Other languages
English (en)
Finnish (fi)
Other versions
FI934353A (sv
FI934353A0 (fi
Inventor
Jari Savusalo
Arto Kiema
Petri Jolma
Ilkka Keskitalo
Ari Hottinen
Anne Siira
Ari Kaerkkaeinen
Risto Uola
Ingo Kuehn
Original Assignee
Nokia 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 Nokia Corp filed Critical Nokia Corp
Publication of FI934353A0 publication Critical patent/FI934353A0/fi
Priority to FI934353A priority Critical patent/FI110042B/sv
Priority to DE69434699T priority patent/DE69434699T2/de
Priority to AU77010/94A priority patent/AU678602B2/en
Priority to PCT/FI1994/000441 priority patent/WO1995010145A1/en
Priority to JP7510627A priority patent/JPH09505953A/ja
Priority to AT94927688T priority patent/ATE323347T1/de
Priority to EP94927688A priority patent/EP0722636B1/en
Priority to CN94193658A priority patent/CN1064203C/zh
Publication of FI934353A publication Critical patent/FI934353A/sv
Priority to NO961383A priority patent/NO961383L/no
Application granted granted Critical
Publication of FI110042B publication Critical patent/FI110042B/sv

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)

Claims (11)

1. CDMA-cellulärradiosystem, i vilket varje cell uppvisar ätminstone en basstation (BTS), som stär i för- 5 bindelse med mobila stationer (MSI, MS2) i cellen, i vilket system varje användares datasignal, som genererats med en viss bithastighet, multipliceras med en spridningskod som genererats med en avsevärt större bithastighet än da-tasignalens bithastighet, varvid förhällandet mellan data-10 signal och spridningskod utgör förbindelsens spridnings-förhällande, och i vilket system flera användares signaler som multiplicerats med spridningskoderna sänds pä samma frekvensband, kännetecknat av att spridningsförhäl-landet för förbindelsen mellan en basstation (BTS) och en 15 mobil station (MSI, MS2) regleras under förbindelsen pä basis av signalens kvalitet.
2. System enligt patentkrav 1, kännetecknat av att regleringen av spridningsförhällandet för förbindelsen mellan basstationen (BTS) och den mobila stationen 20 (MSI, MS2) sker genom en ändring av datasignalens bithastighet .
3. System enligt patentkrav 1, kännetecknat av att regleringen av spridningsförhällandet för förbin- * ,:. delsen mellan basstationen (BTS) och den mobila stationen 25 (MSI, MS2) sker genom en ändring av spridningskodens bit- • t * hastighet. » · · 12 110042 stationen (BTS) och den mobila stationen (MSI, MS2) regle-ras pä basis av det signalbrusförhällande som uppmätts frän signalen som mottagits pä basstationen.
7. System enligt patentkrav 1, kännetecknat 5 av att spridningsförhällandet för förbindelsen mellan bas- stationen (BTS) och den mobila stationen (MSI, MS2) regle-ras pä basis av det bitfelsförhällande som beräknats frän signalen som mottagits pä basstationen.
8. System enligt patentkrav 1, kännetecknat 10 av att regleringen av spridningsförhällandet för förbindelsen mellan basstationen (BTS) och den mobila stationen (MSI, MS2) baserar sig pä den signaleffekt som uppmätts frän signalen som mottagits pä basstationen.
9. System enligt patentkrav 1, kännetecknat 15 av att styrningen av regleringen av spridningsförhällandet för förbindelsen mellan basstationen (BTS) och den mobila stationen (MSI, MS2) sker i basstationen.
10. System enligt patentkrav 1, kännetecknat av att styrningen av regleringen av spridningsförhällandet 20 för förbindelsen mellan basstationen (BTS) och den mobila stationen (MSI, MS2) sker i en basstationsstyrenhet (BSC).
11. System enligt patentkrav 1, kännetecknat av att styrningen av regleringen av spridningsförhällandet . · för förbindelsen mellan basstationen (BTS) och den mobila I I ; 25 stationen (MSI, MS2) sker i den mobila stationen. I > · I · • > M > * 1 · I · t I f I » t · • » ♦ * » a » · 1 a
FI934353A 1993-10-04 1993-10-04 Cellulärt radiosystem FI110042B (sv)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FI934353A FI110042B (sv) 1993-10-04 1993-10-04 Cellulärt radiosystem
JP7510627A JPH09505953A (ja) 1993-10-04 1994-10-03 Ｃｄｍａセルラー無線システムにおいて拡散比を調整することにより信号の質を高める方法
AU77010/94A AU678602B2 (en) 1993-10-04 1994-10-03 Method of increasing signal quality by adjusting the spreading ratio in a CDMA cellular radio system
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
DE69434699T DE69434699T2 (de) 1993-10-04 1994-10-03 Verfahren zur signalqualitätsverbesserung durch anpassung der verspreizungsratio in einer zellularen cdma funktelefonanordnung
AT94927688T ATE323347T1 (de) 1993-10-04 1994-10-03 Verfahren zur signalqualitätsverbesserung durch anpassung der verspreizungsratio in einer zellularen cdma funktelefonanordnung
EP94927688A EP0722636B1 (en) 1993-10-04 1994-10-03 Method of increasing signal quality by adjusting the spreading ratio in a cdma cellular radio system
CN94193658A CN1064203C (zh) 1993-10-04 1994-10-03 在cdma蜂窝无线系统中通过调节扩展率提高信号质量的方法
NO961383A NO961383L (no) 1993-10-04 1996-04-03 Fremgangsmåte for å öke signalkvalitet ved å justere spredningsforholdet i et celledelt CDMA-radiosystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI934353A FI110042B (sv) 1993-10-04 1993-10-04 Cellulärt radiosystem
FI934353 1993-10-04

Publications (3)

Publication Number Publication Date
FI934353A0 FI934353A0 (fi) 1993-10-04
FI934353A FI934353A (sv) 1995-04-05
FI110042B true FI110042B (sv) 2002-11-15

Family

ID=8538706

Family Applications (1)

Application Number Title Priority Date Filing Date
FI934353A FI110042B (sv) 1993-10-04 1993-10-04 Cellulärt radiosystem

Country Status (9)

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

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 (sv) * 1994-11-29 1996-12-27 Nokia Telecommunications Oy Förfarande för datakommunikation, sändare och mottagare
FI97583C (sv) * 1995-02-02 1997-01-10 Nokia Mobile Phones Ltd Förfarande för datakommunikation, sändare och mottagare
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 (sv) * 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
DE69434699D1 (de) 2006-05-24
NO961383D0 (no) 1996-04-03
DE69434699T2 (de) 2007-04-12
JPH09505953A (ja) 1997-06-10
AU7701094A (en) 1995-05-01
FI934353A (sv) 1995-04-05
NO961383L (no) 1996-06-03
EP0722636B1 (en) 2006-04-12
WO1995010145A1 (en) 1995-04-13
CN1132581A (zh) 1996-10-02
AU678602B2 (en) 1997-06-05
EP0722636A1 (en) 1996-07-24
FI934353A0 (fi) 1993-10-04
CN1064203C (zh) 2001-04-04
ATE323347T1 (de) 2006-04-15

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