BR9909560A - Dispositivo para melhorar uma propriedade definida de sìmbolos de domìnio de transformação e receptor para a recepção de blocos de sìmbolos perturbados - Google Patents
Dispositivo para melhorar uma propriedade definida de sìmbolos de domìnio de transformação e receptor para a recepção de blocos de sìmbolos perturbadosInfo
- Publication number
- BR9909560A BR9909560A BR9909560-2A BR9909560A BR9909560A BR 9909560 A BR9909560 A BR 9909560A BR 9909560 A BR9909560 A BR 9909560A BR 9909560 A BR9909560 A BR 9909560A
- Authority
- BR
- Brazil
- Prior art keywords
- receiving
- symbol blocks
- transforming
- defined property
- domain
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Noise Elimination (AREA)
Abstract
"DISPOSITIVO PARA MELHORAR UMA PROPRIEDADE DEFINIDA DE SìMBOLOS DE DOMìNIO DE TRANSFORMAçãO E RECEPTOR PARA A RECEPçãO DE BLOCOS DE SìMBOLOS PERTURBADOS". Um sistema, dispositivo e processo para melhorar uma propriedade definida de sistemas de domínio de transformação; o dispositivo inclui: um mapeador de sinais (23) que mapeia os dados de entrada em blocos de símbolos em um primeiro domínio e que gera bits de deslocamento correspondendo a cada bloco de símbolos; e um dispositivo de perturbação/transformação (27) em resposta aos blocos de símbolos no primeiro domínio e aos bits de deslocamento correspondente, o que produz blocos de símbolos de domínio de transformação perturbados a fim de melhorar a propriedade definida dos símbolos transformados.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5867198A | 1998-04-10 | 1998-04-10 | |
US7508698A | 1998-05-08 | 1998-05-08 | |
PCT/US1999/007841 WO1999053663A1 (en) | 1998-04-10 | 1999-04-09 | System, device and method for improving a defined property of transform-domain signals |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9909560A true BR9909560A (pt) | 2002-03-26 |
Family
ID=26737890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9909560-2A BR9909560A (pt) | 1998-04-10 | 1999-04-09 | Dispositivo para melhorar uma propriedade definida de sìmbolos de domìnio de transformação e receptor para a recepção de blocos de sìmbolos perturbados |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1068707A4 (pt) |
JP (1) | JP2002511708A (pt) |
KR (1) | KR20010042557A (pt) |
CN (1) | CN1296689A (pt) |
AU (1) | AU739896B2 (pt) |
BR (1) | BR9909560A (pt) |
CA (1) | CA2328098A1 (pt) |
MX (1) | MXPA00009895A (pt) |
WO (1) | WO1999053663A1 (pt) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100480775B1 (ko) * | 2000-11-18 | 2005-04-06 | 삼성전자주식회사 | 다중파 전송 시스템을 위한 최고 대 평균비 감소 방법 및장치 |
WO2006046090A1 (en) * | 2004-10-28 | 2006-05-04 | Nokia Corporation | Recursive sequence generation for selected mapping in multi-carrier systems |
EP1990964A1 (en) * | 2007-05-10 | 2008-11-12 | Thomson Licensing | Method of reducing a peak to average power ratio of a multicarrier signal |
US8254482B2 (en) * | 2008-05-13 | 2012-08-28 | Samsung Electronics Co., Ltd. | Perturbed decoder, perturbed decoding method and apparatus in communication system using the same |
GB2471876B (en) * | 2009-07-15 | 2011-08-31 | Toshiba Res Europ Ltd | Data communication method and apparatus |
EP3122013B1 (en) * | 2014-04-17 | 2018-06-06 | Huawei Technologies Co., Ltd. | Coded modulation and demodulation method, apparatus and system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5479447A (en) * | 1993-05-03 | 1995-12-26 | The Board Of Trustees Of The Leland Stanford, Junior University | Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines |
US5774500A (en) * | 1995-12-08 | 1998-06-30 | Board Of Trustees, The Leland Stanford Jr., University | Multi-channel trellis shaper |
US6301268B1 (en) * | 1998-03-10 | 2001-10-09 | Lucent Technologies Inc. | Communication method for frequency division multiplexing signalling systems with reduced average power requirements |
-
1999
- 1999-04-09 BR BR9909560-2A patent/BR9909560A/pt not_active IP Right Cessation
- 1999-04-09 AU AU34871/99A patent/AU739896B2/en not_active Ceased
- 1999-04-09 EP EP99916578A patent/EP1068707A4/en not_active Withdrawn
- 1999-04-09 KR KR1020007011220A patent/KR20010042557A/ko not_active Application Discontinuation
- 1999-04-09 WO PCT/US1999/007841 patent/WO1999053663A1/en not_active Application Discontinuation
- 1999-04-09 MX MXPA00009895A patent/MXPA00009895A/es unknown
- 1999-04-09 CA CA002328098A patent/CA2328098A1/en not_active Abandoned
- 1999-04-09 CN CN99804957A patent/CN1296689A/zh active Pending
- 1999-04-09 JP JP2000544105A patent/JP2002511708A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
KR20010042557A (ko) | 2001-05-25 |
WO1999053663A1 (en) | 1999-10-21 |
EP1068707A1 (en) | 2001-01-17 |
CN1296689A (zh) | 2001-05-23 |
AU739896B2 (en) | 2001-10-25 |
JP2002511708A (ja) | 2002-04-16 |
EP1068707A4 (en) | 2001-09-12 |
CA2328098A1 (en) | 1999-10-21 |
AU3487199A (en) | 1999-11-01 |
MXPA00009895A (es) | 2002-04-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application fees: application dismissed [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 5O,6O, 7O E 8O ANUIDADES |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1911 DE 21/08/2007. |