SE9701655L - Devices and methods related to digital signal handling - Google Patents

Devices and methods related to digital signal handling

Info

Publication number
SE9701655L
SE9701655L SE9701655A SE9701655A SE9701655L SE 9701655 L SE9701655 L SE 9701655L SE 9701655 A SE9701655 A SE 9701655A SE 9701655 A SE9701655 A SE 9701655A SE 9701655 L SE9701655 L SE 9701655L
Authority
SE
Sweden
Prior art keywords
signal
chips
deinterleaving
devices
digital signal
Prior art date
Application number
SE9701655A
Other languages
Swedish (sv)
Other versions
SE511561C2 (en
SE9701655D0 (en
Inventor
Torbjoern Karlsson
Roland Carlsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9701655A priority Critical patent/SE511561C2/en
Publication of SE9701655D0 publication Critical patent/SE9701655D0/en
Priority to AU74585/98A priority patent/AU7458598A/en
Priority to JP54796198A priority patent/JP2001524288A/en
Priority to PCT/SE1998/000739 priority patent/WO1998051017A1/en
Priority to EP98921934A priority patent/EP0974204A1/en
Publication of SE9701655L publication Critical patent/SE9701655L/en
Publication of SE511561C2 publication Critical patent/SE511561C2/en

Links

Classifications

    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention relates to an arrangement and a method respectively for handling a digital data signal comprising a number of data bits which is transported in a channel, at least the phase of which varies. The arrangement comprises transmitting means (310) comprising interleaving means (302) and receiving means (320) comprising deinterleaving means (316). Means are provided for dividing each data bit into a number of chips and in the interleaving means (302) said chips are interleaved. The transmitting means (310) comprises means for transmitting the data signal and a pilot signal. In the receiving means (320) channel estimation means (314) are provided for performing a channel estimation using the pilot signal. The receiving means (320) further comprises compensating means (315) for compensating the signal for the phase variation and deinterleaving means (316) for deinterleaving the chips of the compensated signal.
SE9701655A 1997-05-02 1997-05-02 Devices and methods related to digital signal handling SE511561C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9701655A SE511561C2 (en) 1997-05-02 1997-05-02 Devices and methods related to digital signal handling
AU74585/98A AU7458598A (en) 1997-05-02 1998-04-23 Arrangements and method relating to handling of digital signals
JP54796198A JP2001524288A (en) 1997-05-02 1998-04-23 Apparatus and method for handling digital signals
PCT/SE1998/000739 WO1998051017A1 (en) 1997-05-02 1998-04-23 Arrangements and method relating to handling of digital signals
EP98921934A EP0974204A1 (en) 1997-05-02 1998-04-23 Arrangements and method relating to handling of digital signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9701655A SE511561C2 (en) 1997-05-02 1997-05-02 Devices and methods related to digital signal handling

Publications (3)

Publication Number Publication Date
SE9701655D0 SE9701655D0 (en) 1997-05-02
SE9701655L true SE9701655L (en) 1998-11-03
SE511561C2 SE511561C2 (en) 1999-10-18

Family

ID=20406811

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9701655A SE511561C2 (en) 1997-05-02 1997-05-02 Devices and methods related to digital signal handling

Country Status (5)

Country Link
EP (1) EP0974204A1 (en)
JP (1) JP2001524288A (en)
AU (1) AU7458598A (en)
SE (1) SE511561C2 (en)
WO (1) WO1998051017A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19935480A1 (en) * 1999-07-28 2001-02-22 Infineon Technologies Ag Method for estimating the channel impulse responses of a mobile radio channel
ES2393407T3 (en) * 2006-12-27 2012-12-21 Telefonaktiebolaget Lm Ericsson (Publ) Link adaptation in a wireless telecommunications system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5274667A (en) * 1992-10-23 1993-12-28 David Olmstead Adaptive data rate packet communications system
FI97661C (en) * 1993-12-10 1997-01-27 Nokia Mobile Phones Ltd Procedures for data communication, CDMA transmitters and receivers

Also Published As

Publication number Publication date
WO1998051017A1 (en) 1998-11-12
AU7458598A (en) 1998-11-27
SE511561C2 (en) 1999-10-18
EP0974204A1 (en) 2000-01-26
SE9701655D0 (en) 1997-05-02
JP2001524288A (en) 2001-11-27

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Legal Events

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