BR9607810A - Método e aparelho para estimação coerente de canal em um sistema de comunicação - Google Patents
Método e aparelho para estimação coerente de canal em um sistema de comunicaçãoInfo
- Publication number
- BR9607810A BR9607810A BR9607810A BR9607810A BR9607810A BR 9607810 A BR9607810 A BR 9607810A BR 9607810 A BR9607810 A BR 9607810A BR 9607810 A BR9607810 A BR 9607810A BR 9607810 A BR9607810 A BR 9607810A
- Authority
- BR
- Brazil
- Prior art keywords
- communication system
- channel estimation
- coherent channel
- coherent
- estimation
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
-
- 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
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0236—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols using estimation of the other symbols
-
- 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
- H04L25/0212—Channel estimation of impulse response
- H04L25/0214—Channel estimation of impulse response of a single coefficient
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Error Detection And Correction (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/582,856 US5754599A (en) | 1996-01-04 | 1996-01-04 | Method and apparatus for coherent channel estimation in a communication system |
PCT/US1996/017285 WO1997025774A1 (en) | 1996-01-04 | 1996-10-28 | Method and apparatus for coherent channel estimation in a communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9607810A true BR9607810A (pt) | 1998-07-07 |
Family
ID=24330758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9607810A BR9607810A (pt) | 1996-01-04 | 1996-10-28 | Método e aparelho para estimação coerente de canal em um sistema de comunicação |
Country Status (6)
Country | Link |
---|---|
US (1) | US5754599A (pt) |
JP (1) | JP3275079B2 (pt) |
KR (1) | KR100294173B1 (pt) |
CN (1) | CN1077353C (pt) |
BR (1) | BR9607810A (pt) |
WO (1) | WO1997025774A1 (pt) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE503522C2 (sv) * | 1994-10-31 | 1996-07-01 | Ericsson Telefon Ab L M | Förfarande och anordning för kanalestimering |
FR2751499B1 (fr) * | 1996-07-16 | 1998-08-28 | Duponteil Daniel | Procede de demodulation differentielle numerique |
JPH10190626A (ja) * | 1996-12-27 | 1998-07-21 | Matsushita Electric Ind Co Ltd | Cdma受信装置 |
US5940439A (en) * | 1997-02-26 | 1999-08-17 | Motorola Inc. | Method and apparatus for adaptive rate communication system |
US6539050B1 (en) | 1997-06-26 | 2003-03-25 | Hughes Electronics Corporation | Method for transmitting wideband signals via a communication system adapted for narrow-band signal transmission |
US6510147B1 (en) | 1997-07-15 | 2003-01-21 | Hughes Electronics Corporation | Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals |
US6396822B1 (en) * | 1997-07-15 | 2002-05-28 | Hughes Electronics Corporation | Method and apparatus for encoding data for transmission in a communication system |
US6295311B1 (en) * | 1997-11-07 | 2001-09-25 | Hughes Electronics Corporation | Method and apparatus for compensating for phase differences in received signals |
US6141388A (en) * | 1998-03-11 | 2000-10-31 | Ericsson Inc. | Received signal quality determination method and systems for convolutionally encoded communication channels |
US6487255B1 (en) * | 1998-08-31 | 2002-11-26 | Ericsson Inc. | Information generation for coherent demodulation of differentially encoded signals |
US6332006B1 (en) * | 1998-11-18 | 2001-12-18 | Ericsson Inc. | Apparatus and methods for providing high-penetration messaging in wireless communications systems |
US6320843B1 (en) | 1998-11-18 | 2001-11-20 | Ericsson Inc. | Wireless communications systems with standard and robust services and methods of operation thereof |
US6324395B1 (en) | 1998-11-18 | 2001-11-27 | Ericsson Inc. | Apparatus and methods for assigning spectral and non-spectral resource charges in wireless communications systems |
US6654429B1 (en) | 1998-12-31 | 2003-11-25 | At&T Corp. | Pilot-aided channel estimation for OFDM in wireless systems |
US6405039B1 (en) | 1999-04-20 | 2002-06-11 | Ericsson Inc. | Apparatus and methods for allocation of high-penetration services in wireless communications systems |
US6628945B1 (en) | 1999-04-20 | 2003-09-30 | Ericsson Inc. | Apparatus and methods for high-penetration random access in wireless communications systems |
US6614857B1 (en) * | 1999-04-23 | 2003-09-02 | Lucent Technologies Inc. | Iterative channel estimation and compensation based thereon |
DE19922184A1 (de) * | 1999-05-12 | 2000-11-23 | Siemens Ag | Verfahren zur Schätzung von Kanalparametern |
FR2805689B1 (fr) * | 2000-02-29 | 2003-07-04 | Thomson Csf | Procede et dispositif d'estimation d'un canal de propagation |
WO2002091010A2 (en) | 2001-05-04 | 2002-11-14 | Lockheed Martin Corporation | System and method for wideband pre-detection signal processing for passive coherent location applications |
IL158714A0 (en) * | 2001-05-04 | 2004-05-12 | Lockheed Corp | System and method for measurement of domain data association in passive coherent location applications |
US6940914B1 (en) | 2001-06-11 | 2005-09-06 | Cingular Wireless Ii, Llc | Turbo channel estimation for OFDM systems |
JP2003018047A (ja) * | 2001-07-02 | 2003-01-17 | Kawasaki Microelectronics Kk | Cdma受信装置及び誤り訂正符号のシンボル軟判定方法 |
JP2003283375A (ja) * | 2002-03-22 | 2003-10-03 | Toshiba Corp | Cdm受信装置 |
WO2005041433A1 (ja) * | 2003-10-29 | 2005-05-06 | Matsushita Electric Industrial Co., Ltd. | 受信装置および受信方法 |
US8050865B2 (en) * | 2008-10-31 | 2011-11-01 | Baker Hughes Incorporated | System and method for measuring resistivity parameters of an earth formation |
CN110752892B (zh) * | 2019-09-10 | 2022-04-08 | 航天恒星科技有限公司 | M进制正交调制与m进制信道编码信号的接收处理方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4914699A (en) * | 1988-10-11 | 1990-04-03 | Itt Corporation | High frequency anti-jam communication system terminal |
US5164959A (en) * | 1991-01-22 | 1992-11-17 | Hughes Aircraft Company | Digital equalization method and apparatus |
US5400366A (en) * | 1992-07-09 | 1995-03-21 | Fujitsu Limited | Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same |
US5298811A (en) * | 1992-08-03 | 1994-03-29 | Analog Devices, Inc. | Synchronous logarithmic amplifier |
US5544156A (en) * | 1994-04-29 | 1996-08-06 | Telefonaktiebolaget Lm Ericsson | Direct sequence CDMA coherent uplink detector |
-
1996
- 1996-01-04 US US08/582,856 patent/US5754599A/en not_active Expired - Lifetime
- 1996-10-28 JP JP52517897A patent/JP3275079B2/ja not_active Expired - Fee Related
- 1996-10-28 BR BR9607810A patent/BR9607810A/pt not_active IP Right Cessation
- 1996-10-28 WO PCT/US1996/017285 patent/WO1997025774A1/en active IP Right Grant
- 1996-10-28 CN CN96192353A patent/CN1077353C/zh not_active Expired - Fee Related
- 1996-10-28 KR KR1019970706169A patent/KR100294173B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP3275079B2 (ja) | 2002-04-15 |
KR19980702762A (ko) | 1998-08-05 |
US5754599A (en) | 1998-05-19 |
KR100294173B1 (ko) | 2001-09-17 |
CN1077353C (zh) | 2002-01-02 |
CN1177426A (zh) | 1998-03-25 |
WO1997025774A1 (en) | 1997-07-17 |
JPH11502097A (ja) | 1999-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
FF | Decision: intention to grant | ||
FG9A | Patent or certificate of addition granted | ||
B25D | Requested change of name of applicant approved |
Owner name: MOTOROLA SOLUTIONS, INC. (US) |
|
B25A | Requested transfer of rights approved |
Owner name: MOTOROLA MOBILITY, INC. (US) |
|
B25G | Requested change of headquarter approved |
Owner name: MOTOROLA MOBILITY, INC. (US) |
|
B25E | Requested change of name of applicant rejected |
Owner name: MOTOROLA MOBILITY, INC. (US) Free format text: INDEFERIDA A ALTERACAO DE NOME SOLICITADA ATRAVES DA PETICAO NO 020130025897-RJ, DE 28/03/2013, UMA VEZ QUE NAO FOI PAGA A RESPECTIVA TAXA DE RETRIBUICAO. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 20A ANUIDADE. |
|
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |
|
B25E | Requested change of name of applicant rejected |
Owner name: MOTOROLA MOBILITY, INC. (US) |