ATE371325T1 - Verfahren und schaltungsanordnung zur übertragung ausgewählten signalpunkten einer signalkonstellation - Google Patents

Verfahren und schaltungsanordnung zur übertragung ausgewählten signalpunkten einer signalkonstellation

Info

Publication number
ATE371325T1
ATE371325T1 AT98945128T AT98945128T ATE371325T1 AT E371325 T1 ATE371325 T1 AT E371325T1 AT 98945128 T AT98945128 T AT 98945128T AT 98945128 T AT98945128 T AT 98945128T AT E371325 T1 ATE371325 T1 AT E371325T1
Authority
AT
Austria
Prior art keywords
signal
circuit arrangement
signal points
data stream
code converter
Prior art date
Application number
AT98945128T
Other languages
German (de)
English (en)
Inventor
Klaus Huber
Original Assignee
Deutsche Telekom Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7847693&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE371325(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Deutsche Telekom Ag filed Critical Deutsche Telekom Ag
Application granted granted Critical
Publication of ATE371325T1 publication Critical patent/ATE371325T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AT98945128T 1997-11-06 1998-07-31 Verfahren und schaltungsanordnung zur übertragung ausgewählten signalpunkten einer signalkonstellation ATE371325T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19748880A DE19748880C1 (de) 1997-11-06 1997-11-06 Verfahren und Schaltungsanordnung zur verbesserten Datenübertragung

Publications (1)

Publication Number Publication Date
ATE371325T1 true ATE371325T1 (de) 2007-09-15

Family

ID=7847693

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98945128T ATE371325T1 (de) 1997-11-06 1998-07-31 Verfahren und schaltungsanordnung zur übertragung ausgewählten signalpunkten einer signalkonstellation

Country Status (7)

Country Link
US (1) US6925129B1 (enExample)
EP (1) EP0958685B1 (enExample)
JP (1) JP4121701B2 (enExample)
AT (1) ATE371325T1 (enExample)
DE (2) DE19748880C1 (enExample)
ES (1) ES2289793T3 (enExample)
WO (1) WO1999025103A2 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7376105B2 (en) 1998-08-21 2008-05-20 Massachusetts Institute Of Technology Source coding for interference reduction
US6553535B1 (en) 1998-08-21 2003-04-22 Massachusetts Institute Of Technology Power-efficient communication protocol
US7106794B2 (en) 2000-08-11 2006-09-12 Broadcom Corporation System and method for Huffman shaping in a data communication system
WO2002065724A1 (en) * 2001-02-13 2002-08-22 Mitsubishi Denki Kabushiki Kaisha Multiple-level modulating method, multiple-level demodulating method, and multiple-level modulating/demodulating method
DE10206137A1 (de) * 2002-02-14 2003-09-04 Infineon Technologies Ag Etikettenkennsystem und dafür geeignetes Codierverfahren
KR101653108B1 (ko) * 2015-01-15 2016-09-01 한양대학교 산학협력단 직교 진폭 변조를 위한 신호점 배치 방법 및 이를 이용한 직교 진폭 변조 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62142440A (ja) * 1985-12-17 1987-06-25 Fujitsu Ltd 変復調装置
US4980897A (en) * 1988-08-12 1990-12-25 Telebit Corporation Multi-channel trellis encoder/decoder
US4937844A (en) * 1988-11-03 1990-06-26 Racal Data Communications Inc. Modem with data compression selected constellation
US5115453A (en) * 1990-10-01 1992-05-19 At&T Bell Laboratories Technique for designing a multidimensional signaling scheme
DE69226361T2 (de) * 1991-03-28 1998-12-24 British Telecommunications P.L.C., London TCM-Schema mit nichtganzzahligen Datenraten, Rahmensignalen und Konstellationsumformung
SI9300025A (en) * 1993-01-21 1994-09-30 Spase Drakul Digital communication system in n-dimensional vector space for transmission coded waveforms in bandlimited chanels
TW249873B (en) * 1994-03-21 1995-06-21 At & T Corp Time division multiplexing data communication arrangement with different signal constellation
US5764699A (en) * 1994-03-31 1998-06-09 Motorola, Inc. Method and apparatus for providing adaptive modulation in a radio communication system
IT1273695B (it) * 1994-07-28 1997-07-09 Alcatel Italia Metodo e circuiti per la trasmissione e la ricezione di segnali numerici nel quale si riduce la potenza di picco del segnale filtrato trasmesso compatibili con tecniche di codifica note
US6198776B1 (en) * 1996-11-13 2001-03-06 Motorola Inc. Device and method for precoding data signals for PCM transmission
US6304593B1 (en) * 1997-10-06 2001-10-16 California Institute Of Technology Adaptive modulation scheme with simultaneous voice and data transmission

Also Published As

Publication number Publication date
EP0958685A2 (de) 1999-11-24
DE19748880C1 (de) 1999-05-12
EP0958685B1 (de) 2007-08-22
ES2289793T3 (es) 2008-02-01
JP2001523070A (ja) 2001-11-20
DE59814079D1 (de) 2007-10-04
JP4121701B2 (ja) 2008-07-23
US6925129B1 (en) 2005-08-02
WO1999025103A2 (de) 1999-05-20
WO1999025103A3 (de) 1999-09-10

Similar Documents

Publication Publication Date Title
BR0208490A (pt) Qam com potência quantificada
ATE271293T1 (de) Verfahren und vorrichtung zur übertragung von digitaldaten mit variabler rate
EP0876030A3 (en) System and method for dynamically optimizing a symbol table and modem employing the same
MY130821A (en) Systems and methods for converting a stream of complex numbers into a modulated radio power signal
EP2317717A3 (en) Iterative detection and decoding for a MIMO-OFDM system
EP2271041A3 (en) Method and apparatus for generating pilot signals in a MIMO system
DE69737974D1 (de) Zusätzliche hochratige Übertragungskanäle für CDMA Kommunikationssystem
EP0717520A3 (en) CDMA communication system in which interference removing capability is improved
DE60211705D1 (de) Verfahren und vorrichtung zum verarbeiten von daten zur übertragung in einem mehrkanaligen kommunikationssystem unter verwendung einer selektiven kanalübertragung
ATE493800T1 (de) System und verfahren zur erzeugung von signalwellenformen in einem cdma- mobiltelefonsystem
CA2397965A1 (en) Apparatus and method for generating a preamble sequence in a wireless communication system
CA2261138A1 (en) Variable rate transmission and reception methods, and variable rate transmission and reception devices
CN1042781C (zh) 多调制方式兼容的无线电设备
EP2264934A3 (en) Digital radio communication system and method
SE0202150D0 (sv) Apparatus and Method for Symbol Mapping TFCI Bits for a Hard Split Mode in a CDMA Mobile Communication System
KR960003204A (ko) 디지탈 신호 전송장치, 디지탈 신호 전송방법 및 디지탈 신호 송수신 장치
EP0845885A3 (en) Modulated signal generation apparatus for a digital communication system incorporating fading simulator
EP0902544A3 (en) Modulating device, demodulating device and transmission medium
EP0913971A3 (en) Channel Estimation in a CDMA cellular communication system
ATE371325T1 (de) Verfahren und schaltungsanordnung zur übertragung ausgewählten signalpunkten einer signalkonstellation
EP0986207A3 (en) Transmission of a subchannel, using a pilot signal
ATE268086T1 (de) Verfahren zur spitzenwertreduktion bei einträger- modulierten oder mehrträger-modulierten, digitalen sendesignalen
ATE415781T1 (de) Verteiltes modem
EP0930728A3 (en) Digital optical transmission apparatus and method for performing ASK modulation to generate base band component with constant DC level
WO2002060146A8 (en) Method of implementing modulation and modulator

Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee