DE69905948D1 - Kommunikationssystem mit reduzierter leistungsvariation und verfahren dafür - Google Patents
Kommunikationssystem mit reduzierter leistungsvariation und verfahren dafürInfo
- Publication number
- DE69905948D1 DE69905948D1 DE69905948T DE69905948T DE69905948D1 DE 69905948 D1 DE69905948 D1 DE 69905948D1 DE 69905948 T DE69905948 T DE 69905948T DE 69905948 T DE69905948 T DE 69905948T DE 69905948 D1 DE69905948 D1 DE 69905948D1
- Authority
- DE
- Germany
- Prior art keywords
- communication system
- reduced performance
- performance variation
- variation
- reduced
- 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
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)
- Detection And Prevention Of Errors In Transmission (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Error Detection And Correction (AREA)
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 true DE69905948D1 (de) | 2003-04-17 |
DE69905948T2 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 (de) |
EP (1) | EP1145573B1 (de) |
JP (1) | JP4294221B2 (de) |
DE (1) | DE69905948T2 (de) |
GB (1) | GB2339514A (de) |
WO (1) | WO2000003552A2 (de) |
Families Citing this family (13)
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 (de) * | 2000-02-24 | 2001-08-29 | Alcatel | Verfahren zur Minimizierung der Sendeleistung von nicht-aktiven ATM Zellen in einem XDSL System mit trelliskodierter 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 |
JP3908734B2 (ja) * | 2001-08-31 | 2007-04-25 | サムスン エレクトロニクス カンパニー リミテッド | 移動通信システムでの順方向チャネルの品質情報送受信方法および装置 |
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 Ind 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 |
US10200151B1 (en) * | 2015-03-06 | 2019-02-05 | Aquantia Corp. | Methods and apparatus to improve SNR for signaling across multi-channel cables |
Family Cites Families (20)
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. |
DE69233373T2 (de) * | 1991-03-28 | 2005-06-30 | British Telecommunications P.L.C. | TCM-Schema mit nichtganzzahligen Datenraten, Rahmensignalen und Konstellationsumformung |
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 |
-
1998
- 1998-07-11 GB GB9815025A patent/GB2339514A/en not_active Withdrawn
-
1999
- 1999-07-05 WO PCT/EP1999/004734 patent/WO2000003552A2/en active Search and Examination
- 1999-07-05 JP JP2000559703A patent/JP4294221B2/ja not_active Expired - Fee Related
- 1999-07-05 DE DE69905948T patent/DE69905948T2/de not_active Expired - Lifetime
- 1999-07-05 US US09/743,593 patent/US7031397B1/en not_active Expired - Fee Related
- 1999-07-05 EP EP99934599A patent/EP1145573B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2002520961A (ja) | 2002-07-09 |
US7031397B1 (en) | 2006-04-18 |
JP4294221B2 (ja) | 2009-07-08 |
WO2000003552A2 (en) | 2000-01-20 |
GB9815025D0 (en) | 1998-09-09 |
DE69905948T2 (de) | 2003-08-28 |
EP1145573A3 (de) | 2002-01-02 |
WO2000003552A3 (en) | 2001-10-11 |
EP1145573B1 (de) | 2003-03-12 |
GB2339514A (en) | 2000-01-26 |
EP1145573A2 (de) | 2001-10-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69923954D1 (de) | Kommunikationssystem und verfahren | |
FI980321A (fi) | Tiedonsiirtomenetelmä ja radiojärjestelmä | |
DE69812960D1 (de) | Kommunikationssystem und verfahren mit orthogonalen blockkodierung | |
DE69730238D1 (de) | Kommunikationssystem und -verfahren | |
DE69940005D1 (de) | Drucksystem und -verfahren | |
DE69841853D1 (de) | Autokonfigurierbares Verfahren und System mit automatisiertem Downloading | |
DE69810485D1 (de) | Kommunikationssysteme und verfahren mit paralleler verschachtelungsloser kodierung | |
DE69928218D1 (de) | Pumpen und regelunssystem und dessen verfahren | |
DE60035320D1 (de) | Kommunikationssystem und Verfahren, Kommunikationsgerät und Verfahren | |
DE19581443T1 (de) | Kommunikationsbetriebssystem und Verfahren hierfür | |
DE60103233D1 (de) | Fahrzeugsteuerungssystem und -verfahren | |
DE69800431D1 (de) | Verbessertes Antennensystem und Verfahren hierfür | |
DE60026872D1 (de) | Informationsübertragungssystem und verfahren | |
DE69940458D1 (de) | Kommunikationsverfahren und -system | |
DE69738954D1 (de) | Kommunikationsverfahren und -system | |
DE69841244D1 (de) | Funkkommunikationsgerät und Verfahren | |
FI973884A (fi) | Kommunikaatiojärjestelmä ja menetelmä sitä varten | |
DE69929661D1 (de) | System und Verfahren zur Gatekeeper-to-Gatekeeper Kommunikation | |
DE69905948D1 (de) | Kommunikationssystem mit reduzierter leistungsvariation und verfahren dafür | |
FI980472A (fi) | Latausmenetelmä ja -järjestely | |
DE69938073D1 (de) | Kraftfahrzeug-Kommunikationsverfahren, und System dafür | |
FI981934A0 (fi) | Lähetysmenetelmä ja radiojärjestelmä | |
DE69939280D1 (de) | Sende-Empfänger und Verfahren | |
DE69943322D1 (de) | Kommunikationssystem und Verfahren zur Kommunikationssteuerung | |
DE69832878D1 (de) | CDMA Kommunikationssystem und Verfahren |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R082 | Change of representative |
Ref document number: 1145573 Country of ref document: EP Representative=s name: SCHUMACHER & WILLSAU PATENTANWALTSGESELLSCHAFT MBH |
|
R082 | Change of representative |
Ref document number: 1145573 Country of ref document: EP Representative=s name: SCHUMACHER & WILLSAU PATENTANWALTSGESELLSCHAFT, DE |