BRPI0517688A - transmissor de rádio e método de inserção de sinal piloto - Google Patents
transmissor de rádio e método de inserção de sinal pilotoInfo
- Publication number
- BRPI0517688A BRPI0517688A BRPI0517688-3A BRPI0517688A BRPI0517688A BR PI0517688 A BRPI0517688 A BR PI0517688A BR PI0517688 A BRPI0517688 A BR PI0517688A BR PI0517688 A BRPI0517688 A BR PI0517688A
- Authority
- BR
- Brazil
- Prior art keywords
- pilot signal
- radio transmitter
- input method
- signal input
- signal
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
TRANSMISSOR DE RADIO E MéTODO DE INSERçãO DE SINAL PILOTO. A presente invenção refere-se a um transmissor de rádio e um método de inserção de sinal piloto que são providos para melhoria do rendimento. No transmissor de rádio, uma parte de decisão de MCS (106) seleciona um de uma pluralidade de sistemas de modulação. Uma parte de geração de informação (108) decide uma posição de inserção de um sinal piloto correspondente ao sistema de modulação selecionado. Uma parte de modulação (116) modula um sinal de dados pelo sistema de modulação selecionado. Uma parte de arranjo de sinal (118) insere o sinal piloto no sinal de dados modulado e muda a posição de inserção do sinal piloto correspondente ao sistema de modulação selecionado. Uma parte de RF de transmissão (124) transmite o sinal de dados, onde o sinal piloto é inserido.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004323868 | 2004-11-08 | ||
PCT/JP2005/020379 WO2006049282A1 (ja) | 2004-11-08 | 2005-11-07 | 無線送信装置およびパイロット信号挿入方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0517688A true BRPI0517688A (pt) | 2008-10-14 |
Family
ID=36319280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0517688-3A BRPI0517688A (pt) | 2004-11-08 | 2005-11-07 | transmissor de rádio e método de inserção de sinal piloto |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080107158A1 (pt) |
EP (1) | EP1804391A1 (pt) |
JP (1) | JPWO2006049282A1 (pt) |
KR (1) | KR20070084033A (pt) |
CN (1) | CN100578953C (pt) |
BR (1) | BRPI0517688A (pt) |
WO (1) | WO2006049282A1 (pt) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4611881B2 (ja) * | 2005-12-08 | 2011-01-12 | シャープ株式会社 | 適応変調制御装置、送信機、受信機、及び、適応変調制御方法 |
US7801084B2 (en) * | 2006-06-09 | 2010-09-21 | Intel Corporation | Doppler frequency determination for mobile wireless devices |
US8243850B2 (en) * | 2006-10-24 | 2012-08-14 | Samsung Electronics Co., Ltd. | Method and system for generating reference signals in a wireless communication system |
WO2008050428A1 (fr) * | 2006-10-26 | 2008-05-02 | Fujitsu Limited | Appareil de station radio fixe, procédé de transmission de pilotes et appareil terminal |
JP5159274B2 (ja) * | 2006-11-30 | 2013-03-06 | パナソニック株式会社 | 無線送信装置及び無線送信方法 |
CN101548517B (zh) * | 2006-12-07 | 2012-06-20 | 交互数字技术公司 | 用于分配训练信号和信息比特的无线通信方法和设备 |
KR101360350B1 (ko) * | 2007-08-21 | 2014-02-10 | 재단법인서울대학교산학협력재단 | 도플러 주파수를 이용한 링크 적응화 시스템 및 그 방법 |
JP4869407B2 (ja) * | 2008-01-07 | 2012-02-08 | 三菱電機株式会社 | Mimo通信システム |
WO2010082319A1 (ja) * | 2009-01-14 | 2010-07-22 | 富士通株式会社 | 装置、チャネル品質推定方法および送信方法 |
KR101269890B1 (ko) * | 2009-03-18 | 2013-05-31 | 한국전자통신연구원 | 채널 상태 정보 레퍼런스 신호를 전송하는 시스템 |
CN101841358B (zh) | 2009-03-20 | 2013-08-21 | 富士通株式会社 | 基站和移动台 |
CN101888636B (zh) * | 2009-05-14 | 2013-10-02 | 电信科学技术研究院 | 下行测量导频的配置和检测方法和装置 |
US8565336B2 (en) | 2011-02-08 | 2013-10-22 | Electronics And Telecommunications Research Institute | Data transmission apparatus and method, and data reconstitution apparatus and method |
CN102739382A (zh) * | 2011-03-25 | 2012-10-17 | 北京新岸线无线技术有限公司 | 无线通信系统中解调导频的调整方法及系统 |
CN103354478A (zh) | 2011-03-31 | 2013-10-16 | 北京新岸线移动多媒体技术有限公司 | 一种用于实现链路自适应的方法、网络设备和终端设备 |
JP5327292B2 (ja) * | 2011-08-29 | 2013-10-30 | 富士通株式会社 | 無線通信システム |
EP2733900A1 (en) * | 2012-11-19 | 2014-05-21 | Sony Mobile Communications, Inc. | Alignment of MIMO-OFDM transmissions between multiple antenna paths |
US9444576B2 (en) * | 2014-05-09 | 2016-09-13 | Qualcomm Incorporated | Updates to MU-MIMO rate adaptation algorithm |
CN111245574B (zh) * | 2015-03-06 | 2022-11-15 | 韩国电子通信研究院 | 使用引导码和前导码的广播信号帧生成方法 |
CN105072061B (zh) * | 2015-07-03 | 2019-04-19 | 魅族科技(中国)有限公司 | 无线局域网通信方法和设备 |
CN106559204B (zh) * | 2015-09-29 | 2020-05-26 | 电信科学技术研究院 | 一种导频的配置方法及装置 |
KR101872110B1 (ko) * | 2016-10-04 | 2018-07-31 | 한국산업기술대학교산학협력단 | 통신 시스템에서의 채널 추정 방법 및 장치 |
CN110177070B (zh) * | 2019-05-28 | 2022-01-11 | 北京星网锐捷网络技术有限公司 | 信号解调方法及装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6690665B1 (en) * | 1998-05-13 | 2004-02-10 | Samsung Electronics Co., Ltd. | Device and method for mobile station for receiving signals transmitted from a base station |
JP2000004212A (ja) * | 1998-06-12 | 2000-01-07 | Matsushita Electric Ind Co Ltd | 回線推定装置及び無線通信装置 |
US7027464B1 (en) * | 1999-07-30 | 2006-04-11 | Matsushita Electric Industrial Co., Ltd. | OFDM signal transmission scheme, and OFDM signal transmitter/receiver |
JP4284773B2 (ja) * | 1999-09-07 | 2009-06-24 | ソニー株式会社 | 送信装置、受信装置、通信システム、送信方法及び通信方法 |
JP3522619B2 (ja) * | 2000-01-05 | 2004-04-26 | 株式会社エヌ・ティ・ティ・ドコモ | マルチキャリアcdma伝送システムにおける送信機 |
JP2001339758A (ja) * | 2000-05-26 | 2001-12-07 | Matsushita Electric Ind Co Ltd | 無線基地局装置及び無線通信方法 |
JP3872950B2 (ja) * | 2000-10-05 | 2007-01-24 | 株式会社東芝 | 周波数分割多重伝送信号受信装置 |
JP5079189B2 (ja) * | 2001-04-13 | 2012-11-21 | Kddi株式会社 | 多ビームセルラ無線基地局、移動機及びスペクトラム拡散信号送信方法 |
JP2003060609A (ja) * | 2001-08-10 | 2003-02-28 | Mitsubishi Electric Corp | 通信方法および通信装置 |
JP2003158499A (ja) * | 2001-11-20 | 2003-05-30 | Mitsubishi Electric Corp | 通信方法および通信装置 |
JP4256158B2 (ja) * | 2002-12-26 | 2009-04-22 | パナソニック株式会社 | 無線通信装置及び無線通信方法 |
US6904550B2 (en) * | 2002-12-30 | 2005-06-07 | Motorola, Inc. | Velocity enhancement for OFDM systems |
KR100606105B1 (ko) * | 2003-07-04 | 2006-07-28 | 삼성전자주식회사 | 다중 접속 방식을 사용하는 이동 통신 시스템의 셀 탐색장치 및 방법 |
KR100943624B1 (ko) * | 2003-09-15 | 2010-02-24 | 삼성전자주식회사 | 직교 주파수 분할 다중 통신 시스템에서 동적 자원 할당장치 및 방법 |
-
2005
- 2005-11-07 US US11/718,655 patent/US20080107158A1/en not_active Abandoned
- 2005-11-07 EP EP05800416A patent/EP1804391A1/en not_active Withdrawn
- 2005-11-07 KR KR1020077010348A patent/KR20070084033A/ko not_active Application Discontinuation
- 2005-11-07 CN CN200580036808A patent/CN100578953C/zh not_active Expired - Fee Related
- 2005-11-07 JP JP2006542461A patent/JPWO2006049282A1/ja active Pending
- 2005-11-07 WO PCT/JP2005/020379 patent/WO2006049282A1/ja active Application Filing
- 2005-11-07 BR BRPI0517688-3A patent/BRPI0517688A/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US20080107158A1 (en) | 2008-05-08 |
CN101048951A (zh) | 2007-10-03 |
JPWO2006049282A1 (ja) | 2008-05-29 |
KR20070084033A (ko) | 2007-08-24 |
EP1804391A1 (en) | 2007-07-04 |
CN100578953C (zh) | 2010-01-06 |
WO2006049282A1 (ja) | 2006-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE AS 5A E 6A 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 2160 DE 29/05/2012. |