FI981589A0 - Förfarande för datakommunikation och radiosystem - Google Patents

Förfarande för datakommunikation och radiosystem

Info

Publication number
FI981589A0
FI981589A0 FI981589A FI981589A FI981589A0 FI 981589 A0 FI981589 A0 FI 981589A0 FI 981589 A FI981589 A FI 981589A FI 981589 A FI981589 A FI 981589A FI 981589 A0 FI981589 A0 FI 981589A0
Authority
FI
Finland
Prior art keywords
procedure
data communication
radio systems
radio
systems
Prior art date
Application number
FI981589A
Other languages
English (en)
Finnish (fi)
Other versions
FI106327B (sv
FI981589A (sv
Inventor
Olli Piirainen
Kari Niemelae
Original Assignee
Nokia Telecommunications Oy
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 Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of FI981589A0 publication Critical patent/FI981589A0/sv
Priority to FI981589A priority Critical patent/FI106327B/sv
Priority to AU50416/99A priority patent/AU755312B2/en
Priority to US09/508,268 priority patent/US6658067B1/en
Priority to EP99934750A priority patent/EP1013040A1/en
Priority to JP2000559679A priority patent/JP2002520951A/ja
Priority to PCT/FI1999/000606 priority patent/WO2000003523A1/en
Priority to CN99801121A priority patent/CN1273728A/zh
Publication of FI981589A publication Critical patent/FI981589A/sv
Priority to NO20001224A priority patent/NO20001224D0/no
Application granted granted Critical
Publication of FI106327B publication Critical patent/FI106327B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0032—Without explicit signalling

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FI981589A 1998-07-10 1998-07-10 Förfarande för datakommunikation och radiosystem FI106327B (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI981589A FI106327B (sv) 1998-07-10 1998-07-10 Förfarande för datakommunikation och radiosystem
JP2000559679A JP2002520951A (ja) 1998-07-10 1999-07-08 データ送信方法及び無線システム
US09/508,268 US6658067B1 (en) 1998-07-10 1999-07-08 Data transmission method and radio system
EP99934750A EP1013040A1 (en) 1998-07-10 1999-07-08 Data transmission method and radio system
AU50416/99A AU755312B2 (en) 1998-07-10 1999-07-08 Data transmission method and radio system
PCT/FI1999/000606 WO2000003523A1 (en) 1998-07-10 1999-07-08 Data transmission method and radio system
CN99801121A CN1273728A (zh) 1998-07-10 1999-07-08 数据传输方法及无线系统
NO20001224A NO20001224D0 (no) 1998-07-10 2000-03-09 FremgangsmÕte for datasending, samt radiosystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI981589 1998-07-10
FI981589A FI106327B (sv) 1998-07-10 1998-07-10 Förfarande för datakommunikation och radiosystem

Publications (3)

Publication Number Publication Date
FI981589A0 true FI981589A0 (sv) 1998-07-10
FI981589A FI981589A (sv) 2000-01-11
FI106327B FI106327B (sv) 2001-01-15

Family

ID=8552177

Family Applications (1)

Application Number Title Priority Date Filing Date
FI981589A FI106327B (sv) 1998-07-10 1998-07-10 Förfarande för datakommunikation och radiosystem

Country Status (8)

Country Link
US (1) US6658067B1 (sv)
EP (1) EP1013040A1 (sv)
JP (1) JP2002520951A (sv)
CN (1) CN1273728A (sv)
AU (1) AU755312B2 (sv)
FI (1) FI106327B (sv)
NO (1) NO20001224D0 (sv)
WO (1) WO2000003523A1 (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1035660B1 (en) * 1999-01-05 2008-02-27 Motorola, Inc. Portable communication device
DE10042352A1 (de) * 2000-08-29 2002-03-28 Siemens Ag Verfahren zur Verbesserung der Sprachqualität in einem Mobilfunknetz
EP1274183A1 (en) * 2001-07-05 2003-01-08 Alcatel Data transmission method employing different modulation schemes on radio communication channels
JP3555943B2 (ja) * 2002-02-27 2004-08-18 松下電器産業株式会社 無線受信装置、変調方式判定方法および符号化方式判定方法
SE521746C2 (sv) * 2002-04-05 2003-12-02 Ericsson Telefon Ab L M Multimoduleringssändare
GB2387515A (en) 2002-04-08 2003-10-15 Ipwireless Inc Mapping bits to at least two channels using two interleavers, one for systematic bits, and the other for parity bits
US7245672B2 (en) * 2002-06-27 2007-07-17 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for phase-domain semi-coherent demodulation
KR20040076501A (ko) * 2003-02-26 2004-09-01 학교법인 한양학원 통신용 펄스를 이용한 ｐｓｋ 변조 방법 및 장치
US7471928B2 (en) * 2003-09-08 2008-12-30 Telefonaktiebolaget Lm Ericsson (Publ) Modulation scheme management
EP1692834A1 (en) * 2003-12-04 2006-08-23 Koninklijke Philips Electronics N.V. Avoidance of discontinuities when switching between modulation schemes
US7145966B2 (en) * 2004-06-30 2006-12-05 Qualcomm, Incorporated Signal quality estimation for continuous phase modulation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660131B1 (fr) 1990-03-23 1992-06-19 France Etat Dispositif de transmissions de donnees numeriques a au moins deux niveaux de protection, et dispositif de reception correspondant.
US5311545A (en) * 1991-06-17 1994-05-10 Hughes Aircraft Company Modem for fading digital channels affected by multipath
US5497401A (en) * 1994-11-18 1996-03-05 Thomson Consumer Electronics, Inc. Branch metric computer for a Viterbi decoder of a punctured and pragmatic trellis code convolutional decoder suitable for use in a multi-channel receiver of satellite, terrestrial and cable transmitted FEC compressed-digital television data
US5796783A (en) * 1995-10-31 1998-08-18 Andre Alain Tabourian Digital transmission system
US5960040A (en) 1996-12-05 1999-09-28 Raytheon Company Communication signal processors and methods
US6061549A (en) * 1997-02-20 2000-05-09 Telefonaktiebolaget L M Ericsson Support of multiple modulation levels for a cellular traffic channel
US5909469A (en) 1997-08-29 1999-06-01 Telefonaktoebolaget Lm Ericsson Link adaptation method for links using modulation schemes that have different symbol rates

Also Published As

Publication number Publication date
NO20001224L (no) 2000-03-09
AU755312B2 (en) 2002-12-12
FI106327B (sv) 2001-01-15
WO2000003523A1 (en) 2000-01-20
CN1273728A (zh) 2000-11-15
NO20001224D0 (no) 2000-03-09
FI981589A (sv) 2000-01-11
JP2002520951A (ja) 2002-07-09
AU5041699A (en) 2000-02-01
EP1013040A1 (en) 2000-06-28
US6658067B1 (en) 2003-12-02

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