SE9704497L - Förbättringar av, eller med avseende på, data scramblers - Google Patents

Förbättringar av, eller med avseende på, data scramblers

Info

Publication number
SE9704497L
SE9704497L SE9704497A SE9704497A SE9704497L SE 9704497 L SE9704497 L SE 9704497L SE 9704497 A SE9704497 A SE 9704497A SE 9704497 A SE9704497 A SE 9704497A SE 9704497 L SE9704497 L SE 9704497L
Authority
SE
Sweden
Prior art keywords
data
synchronisation
present
user data
pseudo
Prior art date
Application number
SE9704497A
Other languages
Unknown language ( )
English (en)
Other versions
SE9704497D0 (sv
Inventor
Lennart Olsson
Kjell-Gunnar Bahlenberg
Daniel Bengtsson
Siwert Haakanssoon
Anders Isaksson
Mikael Isaksson
Magnus Johansson
Karin Lis-Mari Ljunggren
Hans Lundberg
Tomas Nordstroem
Sven-Rune Olofsson
Tomas Stefansson
Hans Oehman
Sven Goeran Oekvist
Original Assignee
Telia Ab
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 Telia Ab filed Critical Telia Ab
Priority to SE9704497A priority Critical patent/SE9704497L/sv
Publication of SE9704497D0 publication Critical patent/SE9704497D0/sv
Priority to PCT/SE1998/002193 priority patent/WO1999029078A2/en
Publication of SE9704497L publication Critical patent/SE9704497L/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
SE9704497A 1997-12-03 1997-12-03 Förbättringar av, eller med avseende på, data scramblers SE9704497L (sv)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9704497A SE9704497L (sv) 1997-12-03 1997-12-03 Förbättringar av, eller med avseende på, data scramblers
PCT/SE1998/002193 WO1999029078A2 (en) 1997-12-03 1998-12-01 Improvements in, or relating to, data scramblers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9704497A SE9704497L (sv) 1997-12-03 1997-12-03 Förbättringar av, eller med avseende på, data scramblers

Publications (2)

Publication Number Publication Date
SE9704497D0 SE9704497D0 (sv) 1997-12-03
SE9704497L true SE9704497L (sv) 1999-06-04

Family

ID=20409240

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9704497A SE9704497L (sv) 1997-12-03 1997-12-03 Förbättringar av, eller med avseende på, data scramblers

Country Status (2)

Country Link
SE (1) SE9704497L (sv)
WO (1) WO1999029078A2 (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2376014C (en) * 1999-06-23 2005-08-09 At&T Wireless Services, Inc. System and method for data scrambling to reduce the crest factor in an ofdm waveform
US6785258B1 (en) 1999-06-23 2004-08-31 At&T Wireless Services, Inc. System and method for data scrambling to reduce the crest factor in an OFDM waveform
US6952480B1 (en) 1999-09-20 2005-10-04 Applied Micro Circuits Corporation Self-synchronous data scrambler
US6961369B1 (en) 1999-11-09 2005-11-01 Aware, Inc. System and method for scrambling the phase of the carriers in a multicarrier communications system
EP1228615A2 (en) * 1999-11-09 2002-08-07 Aware, Inc. Par reduction by carriers phase randomization in multicarrier communications
DE19958210C2 (de) * 1999-12-02 2003-08-21 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Erzeugen einer Sendesequenz und Vorrichtung und Verfahren zum Ermitteln eines Informationsworts aus einer empfangenen Sendesequenz
JP3860762B2 (ja) 2002-02-14 2006-12-20 株式会社エヌ・ティ・ティ・ドコモ 移動通信システム、チャネル同期確立方法、及び移動局
CN100440875C (zh) * 2004-05-13 2008-12-03 中兴通讯股份有限公司 一种基带数据传输的装置及其帧同步方法
US8000404B2 (en) 2006-03-28 2011-08-16 Advanced Micro Devices, Inc. Method and apparatus to reduce the effect of crosstalk in a communications interface
WO2007126821A2 (en) * 2006-04-24 2007-11-08 Advanced Micro Devices, Inc. Method and apparatus to reduce the effect of crosstalk in a communications interface
CN101610122B (zh) * 2009-07-03 2013-03-20 中兴通讯股份有限公司 一种并行帧同步的扰码装置及其解扰码装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387460A (en) * 1979-07-23 1983-06-07 Societe Anonyme De Tele-Communication Supplementary information transmitting arrangement for a digital data transmission system
US4646305A (en) * 1983-09-26 1987-02-24 Case Communications, Inc. High speed data modem using multilevel encoding
JP2513331B2 (ja) * 1989-11-10 1996-07-03 日本電気株式会社 搬送波再生器
SE9302453L (sv) * 1993-07-20 1994-10-17 Telia Ab Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM
SE9404121L (sv) * 1994-11-29 1995-12-04 Telia Ab Metod för synkronisering av sändare och mottagare vid mobilt radiosystem
US5862160A (en) * 1996-12-31 1999-01-19 Ericsson, Inc. Secondary channel for communication networks
SE517930C2 (sv) * 1997-01-31 2002-08-06 Ericsson Telefon Ab L M Förfarande och anordning för initial synkronisering i ett kommunikationssystem

Also Published As

Publication number Publication date
WO1999029078A3 (en) 1999-08-12
SE9704497D0 (sv) 1997-12-03
WO1999029078A2 (en) 1999-06-10

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