BRPI0516879A - método para a transmissão de sinais em um sistema de comunicação digital, mìdia de armazenamento que pode ser lida pelo computador, transmissor para um sistema de comunicação digital, estação base de um sistema de comunicação sem fio digital e estação móvel de uma sistema de comunicação sem fio digital - Google Patents
método para a transmissão de sinais em um sistema de comunicação digital, mìdia de armazenamento que pode ser lida pelo computador, transmissor para um sistema de comunicação digital, estação base de um sistema de comunicação sem fio digital e estação móvel de uma sistema de comunicação sem fio digitalInfo
- Publication number
- BRPI0516879A BRPI0516879A BRPI0516879-1A BRPI0516879A BRPI0516879A BR PI0516879 A BRPI0516879 A BR PI0516879A BR PI0516879 A BRPI0516879 A BR PI0516879A BR PI0516879 A BRPI0516879 A BR PI0516879A
- Authority
- BR
- Brazil
- Prior art keywords
- communication system
- digital
- bits
- wireless communication
- digital communication
- Prior art date
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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
-
- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
-
- 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
-
- 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
-
- 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
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
MéTODO PARA A TRANSMISSãO DE SINAIS EM UM SISTEMA DE COMUNICAçãO DIGITAL, MìDIA DE ARMAZENAMENTO QUE PODE SER LIDA PELO COMPUTADOR, TRANSMISSOR PARA UM SISTEMA DE COMUNICAçãO DIGITAL, ESTAçãO BASE DE UM SISTEMA DE COMUNICAçãO SEM FIO DIGITAL E ESTAçãO MóVEL DE UM SISTEMA DE COMUNICAçãO SEM FIO DIGITAL. Trata-se de um método para aumentar a confiabilidade da estimativa de canal em um sistema de comunicação digital mediante a redução da ambigüidade no reconhecimento dos símbolos recebidos avaliados para a estimativa de canal. Uma primeira pluralidade de bits é mapeada para um estado de modulação de acordo com um determinado mapeamento de Gray de números binários para o estado de modulação e é transmitida. A pluralidade de bits é retransmitida pelo menos uma vez, com um subconjunto de bits contidos na pluralidade de bits invertidos, e mapeados para estados de modulação adicionais de acordo com o mesmo mapeamento de Gray. Os bits a serem invertidos são determinados de uma maneira tal que o número de resultados da soma de vetores diferentes que pode ser obtido, para todas as combinações de valores de bits dentro da primeira pluralidade de bits, ao adicionar os vetores que representam valores complexos do primeiro estado de modulação e de estados de modulação adicionais em um plano complexo, é mais baixo do que o número de estados de modulação diferentes dentro do mapeamento de Gray.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04026071A EP1655877A1 (en) | 2004-11-03 | 2004-11-03 | Method and transmitter structure reducing ambiguity by repetition rearrangement in the bit domain |
| PCT/EP2005/007928 WO2006048059A1 (en) | 2004-11-03 | 2005-07-20 | Method and transmitter structure reducing ambiguity by repetition rearrangement in the bit domain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BRPI0516879A true BRPI0516879A (pt) | 2008-09-23 |
Family
ID=34927213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0516879-1A BRPI0516879A (pt) | 2004-11-03 | 2005-07-20 | método para a transmissão de sinais em um sistema de comunicação digital, mìdia de armazenamento que pode ser lida pelo computador, transmissor para um sistema de comunicação digital, estação base de um sistema de comunicação sem fio digital e estação móvel de uma sistema de comunicação sem fio digital |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US8139690B2 (pt) |
| EP (2) | EP1655877A1 (pt) |
| JP (1) | JP4714743B2 (pt) |
| KR (1) | KR20070085629A (pt) |
| CN (1) | CN101053195B (pt) |
| AT (1) | ATE407491T1 (pt) |
| BR (1) | BRPI0516879A (pt) |
| DE (1) | DE602005009574D1 (pt) |
| MX (1) | MX2007005386A (pt) |
| RU (1) | RU2007120636A (pt) |
| WO (1) | WO2006048059A1 (pt) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1655877A1 (en) * | 2004-11-03 | 2006-05-10 | Matsushita Electric Industrial Co., Ltd. | Method and transmitter structure reducing ambiguity by repetition rearrangement in the bit domain |
| WO2006070750A1 (ja) * | 2004-12-27 | 2006-07-06 | Matsushita Electric Industrial Co., Ltd. | 無線送信装置、無線受信装置、無線送信方法および無線受信方法 |
| CN101237434B (zh) * | 2008-03-10 | 2011-02-02 | 电子科技大学 | 一种格雷映射m-psk调制的软判决方法 |
| US20090232252A1 (en) * | 2008-03-14 | 2009-09-17 | Dukhyun Kim | Method and Apparatus for Digital Encoding with Reduced Memory Requirement and Complexity |
| US8340202B2 (en) * | 2010-03-11 | 2012-12-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for efficient soft modulation for gray-mapped QAM symbols |
| AT510843B1 (de) | 2011-08-11 | 2012-07-15 | Atomic Austria Gmbh | Schi oder snowboard sowie verfahren zu dessen herstellung |
| KR20130142932A (ko) * | 2012-06-19 | 2013-12-30 | 한국전자통신연구원 | 무선랜 시스템의 오에프디엠 전송 방법 및 장치 |
| KR102323765B1 (ko) * | 2014-02-13 | 2021-11-11 | 한국전자통신연구원 | 부호율이 3/15인 ldpc 부호어를 위한 비균등 16-심볼 신호성상을 이용한 변조기 및 이를 이용한 변조 방법 |
| KR102323768B1 (ko) * | 2014-02-13 | 2021-11-11 | 한국전자통신연구원 | 부호율이 2/15인 ldpc 부호어를 위한 비균등 16-심볼 신호성상을 이용한 변조기 및 이를 이용한 변조 방법 |
| US9543982B2 (en) * | 2014-02-13 | 2017-01-10 | Electronics And Telecommunications Research Institute | Modulator and modulation method using non-uniform 16-symbol signal constellation for low-density parity check codeword having 2/15 code rate |
| KR102323764B1 (ko) * | 2014-02-13 | 2021-11-11 | 한국전자통신연구원 | 부호율이 4/15인 ldpc 부호어를 위한 비균등 16-심볼 신호성상을 이용한 변조기 및 이를 이용한 변조 방법 |
| US9520898B2 (en) * | 2014-02-13 | 2016-12-13 | Electronics And Telecommunications Research Institute | Modulator and modulation method using non-uniform 16-symbol signal constellation for low-density parity check codeword having 3/15 code rate |
| CA2964557C (en) | 2014-02-13 | 2019-07-30 | Electronics And Telecommunications Research Institute | Modulator and modulation method using non-uniform 16-symbol signal constellation for low-density parity check codeword having 4/15 code rate |
| KR102260767B1 (ko) * | 2014-05-22 | 2021-06-07 | 한국전자통신연구원 | 길이가 16200이며, 부호율이 3/15인 ldpc 부호어 및 64-심볼 맵핑을 위한 비트 인터리버 및 이를 이용한 비트 인터리빙 방법 |
| CN105634654B (zh) * | 2014-10-27 | 2019-12-17 | 中兴通讯股份有限公司 | 多用户信息传输的叠加编码、解调方法及装置 |
| EP3231117B1 (en) | 2014-12-08 | 2018-09-26 | King Abdullah University Of Science And Technology | Enhanced performance hybrid-arq |
| GB201611856D0 (en) * | 2016-07-07 | 2016-08-24 | Univ Surrey | Transmitting and receiving data in a wireless communication network |
| US10742326B1 (en) * | 2019-04-18 | 2020-08-11 | Microsoft Technology Licensing, Llc | Power-based encoding of data to be transmitted over an optical communication path |
| US11601150B1 (en) * | 2021-11-17 | 2023-03-07 | Ultralogic 6G, Llc | Demodulation for phase-noise mitigation in 5G and 6G |
| US11736320B2 (en) * | 2022-02-14 | 2023-08-22 | Ultralogic 6G, Llc | Multiplexed amplitude-phase modulation for 5G/6G noise mitigation |
| US12250100B2 (en) * | 2022-02-14 | 2025-03-11 | David E. Newman | Selecting a modulation scheme responsive to fault types in 5G/6G |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6320914B1 (en) * | 1996-12-18 | 2001-11-20 | Ericsson Inc. | Spectrally efficient modulation using overlapped GMSK |
| EP1293059B1 (en) | 2001-02-21 | 2004-03-10 | Matsushita Electric Industrial Co., Ltd. | Hybrid arq method with signal constellation rearrangement |
| CN1149803C (zh) * | 2001-09-30 | 2004-05-12 | 华为技术有限公司 | 一种基于比特变换的数据重传方法 |
| KR100464325B1 (ko) * | 2001-10-15 | 2005-01-03 | 삼성전자주식회사 | 이동통신시스템에서 패킷 재전송을 위한 송수신 장치 및 방법 |
| DE60113128T2 (de) | 2001-11-16 | 2006-03-02 | Matsushita Electric Industrial Co., Ltd., Kadoma | Hybrides ARQ Verfahren zur Datenpaketübertragung |
| ATE309652T1 (de) | 2001-11-16 | 2005-11-15 | Matsushita Electric Industrial Co Ltd | Arq wiederübertragungsverfahren mit inkrementaler redundanz unter verwendung von bit umordnungsarten |
| EP2110978B1 (en) | 2002-10-18 | 2014-01-01 | Panasonic Corporation | Constellation rearrangement for transmit diversity schemes |
| AU2002368296A1 (en) | 2002-10-18 | 2004-05-04 | Matsushita Electric Industrial Co., Ltd. | Constellation rearrangement for arq transmit diversity schemes |
| US20050226342A1 (en) * | 2004-03-03 | 2005-10-13 | Fady Alajaji | System and method for mapping information symbols to transmission symbols |
| EP1655877A1 (en) * | 2004-11-03 | 2006-05-10 | Matsushita Electric Industrial Co., Ltd. | Method and transmitter structure reducing ambiguity by repetition rearrangement in the bit domain |
-
2004
- 2004-11-03 EP EP04026071A patent/EP1655877A1/en not_active Withdrawn
-
2005
- 2005-07-20 CN CN2005800374954A patent/CN101053195B/zh not_active Expired - Fee Related
- 2005-07-20 RU RU2007120636/09A patent/RU2007120636A/ru not_active Application Discontinuation
- 2005-07-20 WO PCT/EP2005/007928 patent/WO2006048059A1/en not_active Ceased
- 2005-07-20 US US11/718,495 patent/US8139690B2/en not_active Expired - Fee Related
- 2005-07-20 EP EP05776051A patent/EP1817861B1/en not_active Expired - Lifetime
- 2005-07-20 BR BRPI0516879-1A patent/BRPI0516879A/pt not_active Application Discontinuation
- 2005-07-20 MX MX2007005386A patent/MX2007005386A/es not_active Application Discontinuation
- 2005-07-20 JP JP2007539474A patent/JP4714743B2/ja not_active Expired - Lifetime
- 2005-07-20 DE DE602005009574T patent/DE602005009574D1/de not_active Expired - Lifetime
- 2005-07-20 AT AT05776051T patent/ATE407491T1/de not_active IP Right Cessation
- 2005-07-20 KR KR1020077012411A patent/KR20070085629A/ko not_active Withdrawn
-
2012
- 2012-02-10 US US13/371,155 patent/US8391403B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070085629A (ko) | 2007-08-27 |
| EP1817861B1 (en) | 2008-09-03 |
| US20120140846A1 (en) | 2012-06-07 |
| ATE407491T1 (de) | 2008-09-15 |
| WO2006048059A1 (en) | 2006-05-11 |
| EP1655877A1 (en) | 2006-05-10 |
| CN101053195A (zh) | 2007-10-10 |
| US20090034655A1 (en) | 2009-02-05 |
| JP4714743B2 (ja) | 2011-06-29 |
| US8391403B2 (en) | 2013-03-05 |
| RU2007120636A (ru) | 2008-12-10 |
| MX2007005386A (es) | 2007-08-14 |
| EP1817861A1 (en) | 2007-08-15 |
| CN101053195B (zh) | 2013-07-10 |
| US8139690B2 (en) | 2012-03-20 |
| JP2008519511A (ja) | 2008-06-05 |
| DE602005009574D1 (de) | 2008-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
| B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |