SE9603190D0 - Improvements in, or related to, multi-carrier transmission systems - Google Patents

Improvements in, or related to, multi-carrier transmission systems

Info

Publication number
SE9603190D0
SE9603190D0 SE9603190A SE9603190A SE9603190D0 SE 9603190 D0 SE9603190 D0 SE 9603190D0 SE 9603190 A SE9603190 A SE 9603190A SE 9603190 A SE9603190 A SE 9603190A SE 9603190 D0 SE9603190 D0 SE 9603190D0
Authority
SE
Sweden
Prior art keywords
complex number
frame
argument
stream
time domain
Prior art date
Application number
SE9603190A
Other languages
Swedish (sv)
Other versions
SE506637C2 (en
SE9603190L (en
Inventor
Mikael Isaksson
Magnus Johansson
Harry E Tonvall
Lennart Olsson
Tomas Stefansson
Hans Oehman
Kjell Gunnar Bahlenberg
Anders I Isaksson
Sven Goeran Oekvist
Karin L-M Ljunggren
Tomas Nordstroem
Lars-Aake Isaksson
Daniel Bengtsson
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
Priority claimed from SE9601986A external-priority patent/SE9601986D0/en
Publication of SE9603190D0 publication Critical patent/SE9603190D0/en
Priority to SE9603190A priority Critical patent/SE506637C2/en
Application filed by Telia Ab filed Critical Telia Ab
Priority to EP97937935A priority patent/EP0920756B1/en
Priority to JP51255598A priority patent/JP4130994B2/en
Priority to AT97937935T priority patent/ATE233451T1/en
Priority to DE69719333T priority patent/DE69719333T2/en
Priority to PCT/SE1997/001453 priority patent/WO1998010548A2/en
Priority to US09/147,758 priority patent/US6493395B1/en
Publication of SE9603190L publication Critical patent/SE9603190L/en
Publication of SE506637C2 publication Critical patent/SE506637C2/en
Priority to NO990770A priority patent/NO990770L/en

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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

The receiver includes a selector for selecting a frame from a stream of received time domain data. A one frequency DFT mechanism performs a one frequency DFT on the selected frame to produce a complex number representing the pilot carrier. The argument of the complex number is the pilot carrier's phase. A processor derives the argument from the complex number using an inverse tangent operation. The multicarrier system is a discrete multitone (DMT) system. The receiver includes a correlator deriving a frame start signal from the stream of time domain data.
SE9603190A 1996-05-24 1996-09-02 Receiver for use with multicarrier transmission system using orthogonal carriers SE506637C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9603190A SE506637C2 (en) 1996-05-24 1996-09-02 Receiver for use with multicarrier transmission system using orthogonal carriers
US09/147,758 US6493395B1 (en) 1996-09-02 1997-09-01 Multi-carrier transmission systems
EP97937935A EP0920756B1 (en) 1996-09-02 1997-09-01 Improvements in, or relating to, multi-carrier transmission systems
PCT/SE1997/001453 WO1998010548A2 (en) 1996-09-02 1997-09-01 Improvements in, or relating to, multi-carrier transmission systems
JP51255598A JP4130994B2 (en) 1996-09-02 1997-09-01 Improvements in or related to multi-carrier transmission systems
AT97937935T ATE233451T1 (en) 1996-09-02 1997-09-01 IMPROVEMENTS IN, OR RELATING TO, MULTI CARRIER TRANSMISSION SYSTEMS
DE69719333T DE69719333T2 (en) 1996-09-02 1997-09-01 IMPROVEMENTS IN OR WITH REGARD TO MULTI-VEHICLE TRANSMISSION SYSTEMS
NO990770A NO990770L (en) 1996-09-02 1999-02-19 Multi-carrier transmission system, receiver, transceiver and method for the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9601986A SE9601986D0 (en) 1996-05-24 1996-05-24 Estimating the phase of a pilot carrier in a DMT time-domain signal
SE9603190A SE506637C2 (en) 1996-05-24 1996-09-02 Receiver for use with multicarrier transmission system using orthogonal carriers

Publications (3)

Publication Number Publication Date
SE9603190D0 true SE9603190D0 (en) 1996-09-02
SE9603190L SE9603190L (en) 1997-11-25
SE506637C2 SE506637C2 (en) 1998-01-26

Family

ID=26662629

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9603190A SE506637C2 (en) 1996-05-24 1996-09-02 Receiver for use with multicarrier transmission system using orthogonal carriers

Country Status (1)

Country Link
SE (1) SE506637C2 (en)

Also Published As

Publication number Publication date
SE506637C2 (en) 1998-01-26
SE9603190L (en) 1997-11-25

Similar Documents

Publication Publication Date Title
KR970705263A (en) Multi-carrier transmission system and frame synchronization method (FRAME SYNCHRONIZATION IN MULTICARRIER TRANSMISSION SYSTEM)
US5652772A (en) Method and apparatus for synchronization in digital transmisison systems of the OFDM type
US5444697A (en) Method and apparatus for frame synchronization in mobile OFDM data communication
JP3604937B2 (en) Reduction of interference in a communication system based on discrete multitone (DMT)
CA2372072C (en) Synchronization of ofdm signals with improved windowing
US7813456B2 (en) Frequency correlation based synchronization for coherent OFDM receiver and apparatus thereof
US20060088133A1 (en) Time-frequency correlation-based synchronization for coherent OFDM receiver
KR101026055B1 (en) System and Methods For A Multi-carrier Transceiver With Radio Frequency Interference Reduction
US20040156441A1 (en) Method and arrangement to determine a clock timing error in a multi-carrier transmission system, and related synchronisation units
FR2670062B1 (en) METHOD FOR RECALARING THE LOCAL OSCILLATORS OF A RECEIVER AND DEVICE FOR CARRYING OUT THE METHOD.
WO2002049305A3 (en) Ofdma with adaptive subcarrier-cluster configuration and selective loading
DE69720225D1 (en) IMPROVEMENTS IN OR WITH REGARD TO MULTI-CARRIER TRANSFER SYSTEMS
JPH09512156A (en) Multi-carrier transmission in continuous wave networks
KR20010008833A (en) Frequency offset compensation apparatus using pilot symbol in orthogonal frequency division multiplex system
CA2217259A1 (en) Demodulation using a time domain guard interval with an overlapped transform
CN101401380A (en) Frequency tracking which adapts to timing synchronization
EP1463251A3 (en) Multicarrier transmission with channel estimation
US6625112B1 (en) Synchronization
EP0991238B1 (en) Generation and decoding of multi-carrier signal
GB2360181A (en) xDSL modem having DMT symbol boundary detection
SE9603190D0 (en) Improvements in, or related to, multi-carrier transmission systems
JP2002009731A (en) Ofdm demodulation circuit and ofdm receiving device
GB2426901A (en) FDM/OFDM with reduced peak to average power ratio
SE9603191D0 (en) Improvements in, or related to, multi-carrier transmission systems
JP2000341240A (en) Transmitter and receiver for ofdm communication system

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 9603190-1

Format of ref document f/p: F