DE69905948T2 - Kommunikationssystem mit reduzierter leistungsvariation und verfahren dafür - Google Patents

Kommunikationssystem mit reduzierter leistungsvariation und verfahren dafür

Info

Publication number
DE69905948T2
DE69905948T2 DE69905948T DE69905948T DE69905948T2 DE 69905948 T2 DE69905948 T2 DE 69905948T2 DE 69905948 T DE69905948 T DE 69905948T DE 69905948 T DE69905948 T DE 69905948T DE 69905948 T2 DE69905948 T2 DE 69905948T2
Authority
DE
Germany
Prior art keywords
communication system
symbols
power variation
symbol
channel
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69905948T
Other languages
German (de)
English (en)
Other versions
DE69905948D1 (de
Inventor
Rorie O'neill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions UK Ltd
Original Assignee
Motorola Ltd
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 Motorola Ltd filed Critical Motorola Ltd
Application granted granted Critical
Publication of DE69905948D1 publication Critical patent/DE69905948D1/de
Publication of DE69905948T2 publication Critical patent/DE69905948T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H04L1/0043—Realisations of complexity reduction techniques, e.g. use of look-up tables
    • H04L1/0044—Realisations of complexity reduction techniques, e.g. use of look-up tables specially adapted for power saving
    • 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
    • H04L1/24—Testing correct operation
    • H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/186—Phase-modulated carrier systems, i.e. using phase-shift keying in which the information is carried by both the individual signal points and the subset to which the individual signal points belong, e.g. coset coding or related schemes
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H04L27/2615—Reduction thereof using coding
    • 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
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
DE69905948T 1998-07-11 1999-07-05 Kommunikationssystem mit reduzierter leistungsvariation und verfahren dafür Expired - Lifetime DE69905948T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9815025A GB2339514A (en) 1998-07-11 1998-07-11 Cellular communication system with reduced power variation
PCT/EP1999/004734 WO2000003552A2 (en) 1998-07-11 1999-07-05 Communication system with reduced power variation and method therefor

Publications (2)

Publication Number Publication Date
DE69905948D1 DE69905948D1 (de) 2003-04-17
DE69905948T2 true DE69905948T2 (de) 2003-08-28

Family

ID=10835320

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69905948T Expired - Lifetime DE69905948T2 (de) 1998-07-11 1999-07-05 Kommunikationssystem mit reduzierter leistungsvariation und verfahren dafür

Country Status (6)

Country Link
US (1) US7031397B1 (https=)
EP (1) EP1145573B1 (https=)
JP (1) JP4294221B2 (https=)
DE (1) DE69905948T2 (https=)
GB (1) GB2339514A (https=)
WO (1) WO2000003552A2 (https=)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804560B1 (fr) * 2000-01-31 2006-08-04 Commissariat Energie Atomique Procede de radiocommunications amrc avec codes d'acces et recepteur correspondant
EP1128623A1 (en) * 2000-02-24 2001-08-29 Alcatel Method to minimise transmission power of idle ATM cells in a XDSL system with trellis coded modulation
JP2001358692A (ja) * 2000-06-14 2001-12-26 Nec Corp 直交周波数分割多重変復調回路
EP1386435B1 (de) * 2001-05-08 2007-04-18 Siemens Aktiengesellschaft Verfahren und vorrichtung zur datenübertragung in einem multiträgersystem mit paralleler concatenierter kodierung und modulation
KR100498922B1 (ko) * 2001-08-31 2005-07-04 삼성전자주식회사 이동통신 시스템에서 순방향 채널의 품질정보 송수신방법및 장치
US20030053493A1 (en) * 2001-09-18 2003-03-20 Joseph Graham Mobley Allocation of bit streams for communication over-multi-carrier frequency-division multiplexing (FDM)
US7336680B2 (en) * 2001-09-18 2008-02-26 Scientific-Atlanta, Inc. Multi-carrier frequency-division multiplexing (FDM) architecture for high speed digital service
ATE309652T1 (de) * 2001-11-16 2005-11-15 Matsushita Electric Industrial Co Ltd Arq wiederübertragungsverfahren mit inkrementaler redundanz unter verwendung von bit umordnungsarten
US7289494B2 (en) * 2001-12-06 2007-10-30 Pulse-Link, Inc. Systems and methods for wireless communication over a wide bandwidth channel using a plurality of sub-channels
US7590145B2 (en) * 2002-09-17 2009-09-15 Scientific-Atlanta, Inc. Multiplexing octets from a data flow over MPEG packets
US8781006B2 (en) * 2010-05-21 2014-07-15 Qualcomm Incorporated Link adaptation in multi-carrier communication systems
GB2496379A (en) 2011-11-04 2013-05-15 Univ Edinburgh A freespace optical communication system which exploits the rolling shutter mechanism of a CMOS camera
US9893756B1 (en) * 2015-03-06 2018-02-13 Aquantia Corp. Methods and apparatus to improve SNR for signaling across multi-channel cables

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672755B1 (fr) * 1991-02-12 1993-05-07 Thomson Csf Procede de codage en binaire des points d'une constellation utilisee dans une modulation multiporteuse de type ofdm.
CA2106844C (en) * 1991-03-28 1998-12-01 John David Brownlie Tcm scheme with fractional bit rates, framing signals and constellation shaping
GB9217819D0 (en) * 1992-08-21 1992-10-07 Philips Electronics Uk Ltd Data coding system
US5642384A (en) * 1993-07-06 1997-06-24 Ericsson Inc. Trellis coded modulation scheme with low envelope variation for mobile radio by constraining a maximum modulus of a differential phase angle
US5838732A (en) 1994-10-31 1998-11-17 Airnet Communications Corp. Reducing peak-to-average variance of a composite transmitted signal generated by a digital combiner via carrier phase offset
US5835536A (en) * 1995-02-02 1998-11-10 Motorola, Inc. Method and apparatus for reducing peak-to-average requirements in multi-tone communication circuits
US5621762A (en) * 1995-06-12 1997-04-15 Motorola, Inc. Radio with peak power and bandwidth efficient modulation
US5606578A (en) * 1995-06-26 1997-02-25 Motorola, Inc. Radio with peak power and bandwidth efficient modulation using asymmetric symbol constellations
GB2309363B (en) * 1996-01-17 2000-07-12 Motorola Ltd Multicarrier communication system and method for peak power control
US5914933A (en) 1996-03-08 1999-06-22 Lucent Technologies Inc. Clustered OFDM communication system
GB2313525B (en) * 1996-05-24 2000-06-07 Motorola Ltd Filter for multicarrier communication system and method for peak power control therein
DE19625054B4 (de) 1996-06-22 2005-04-14 Deutsche Telekom Ag Verfahren und System zur Übertragung von Mehrträger-Signalen mit einem reduzierten Spitzen-/Mittelwertverhältnis
US5862182A (en) * 1996-07-30 1999-01-19 Lucent Technologies Inc. OFDM digital communications system using complementary codes
DE19635813A1 (de) * 1996-09-04 1998-03-05 Johannes Prof Dr Ing Huber Verfahren zur Reduktion des Spitzenwertfaktors bei digitalen Übertragungsverfahren
WO1998011698A1 (en) * 1996-09-10 1998-03-19 Hewlett-Packard Company Methods and apparatus for encoding and decoding data
US5982818A (en) * 1997-01-07 1999-11-09 Daniel J. Krueger Method for implementing trellis codes for ISI channels
US5894498A (en) * 1997-02-26 1999-04-13 Motorola, Inc. Method and apparatus for analyzing a composite carrier signal
US6175551B1 (en) * 1997-07-31 2001-01-16 Lucent Technologies, Inc. Transmission system and method employing peak cancellation to reduce the peak-to-average power ratio
US6130918A (en) * 1997-12-01 2000-10-10 Nortel Networks Limited Method and apparatus for reducing the peak-to-average ratio in a multicarrier communication system
US6556557B1 (en) * 1999-06-02 2003-04-29 At&T Corp. Method and system for reducing of peak-to-average power ratio of transmission signals comprising overlapping waveforms

Also Published As

Publication number Publication date
DE69905948D1 (de) 2003-04-17
US7031397B1 (en) 2006-04-18
EP1145573A2 (en) 2001-10-17
EP1145573A3 (en) 2002-01-02
GB9815025D0 (en) 1998-09-09
JP4294221B2 (ja) 2009-07-08
JP2002520961A (ja) 2002-07-09
GB2339514A (en) 2000-01-26
WO2000003552A2 (en) 2000-01-20
EP1145573B1 (en) 2003-03-12
WO2000003552A3 (en) 2001-10-11

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