ES2150973T3 - Procedimiento y dispositivo de deteccion de perdida de recuperacion de portadora y de determinacion de la relacion eb/no de un enlace de transmision digital. - Google Patents
Procedimiento y dispositivo de deteccion de perdida de recuperacion de portadora y de determinacion de la relacion eb/no de un enlace de transmision digital.Info
- Publication number
- ES2150973T3 ES2150973T3 ES94402853T ES94402853T ES2150973T3 ES 2150973 T3 ES2150973 T3 ES 2150973T3 ES 94402853 T ES94402853 T ES 94402853T ES 94402853 T ES94402853 T ES 94402853T ES 2150973 T3 ES2150973 T3 ES 2150973T3
- Authority
- ES
- Spain
- Prior art keywords
- samples
- relation
- determination
- loss
- procedure
- 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
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
-
- 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
- H04L27/22—Demodulator circuits; Receiver circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
EL PROCESO DE LA INVENCION SE APLICA A UNA SEÑAL CON PLURALIDAD DE FASES CONSTITUIDO POR DOS TRENES DE DATOS EN CUADRATURA DE FASE QUE PROPORCIONAN A CADA TIEMPO DE SIMBOLO UNA MUESTRA RECIBIDA CUYA POSICION EN LA CONSTELACION SE DEFINE POR SUS COORDENADAS (IN, QN) OBTENIDAS POR CUANTIFICACION DE ESTOS TRENES DE DATOS. CONSISTE EN: - DETERMINAR EL NUMERO DE MUESTRAS RECIBIDAS, LLAMADAS MUESTRAS ERRONEAS, DURANTE UN INTERVALO DE TIEMPO DETERMINADO, CUYAS COORDENADAS CORRESPONDEN A LAS DE MUESTRAS TESTIGAS, SIENDO LAS COORDENADAS DE LAS MUESTRAS TESTIGA DIFERENTES DE LAS DE LAS MUESTRAS RECIBIDAS EN CONDICIONES DE TRANSMISION OPTIMA, LLAMADAS MUESTRAS OPTIMA; CALCULAR LA RELACION ENTRE EL NUMERO DE MUESTRAS ERRONEAS Y EL NUMERO TOTAL DE MUESTRAS RECIBIDAS DURANTE ESTE INTERVALO DE TIEMPO DETERMINADO, SIENDO ESTA RELACION CALCULADA INVERSAMENTE PROPORCIONAL A EB/NO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9315086A FR2713855B1 (fr) | 1993-12-15 | 1993-12-15 | Procédé de détection de décrochage de récupération de porteuse et de détermination du rapport EB/NO d'une liaison de transmission numérique et dispositif mettant en Óoeuvre ce procédé. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2150973T3 true ES2150973T3 (es) | 2000-12-16 |
Family
ID=9453969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94402853T Expired - Lifetime ES2150973T3 (es) | 1993-12-15 | 1994-12-12 | Procedimiento y dispositivo de deteccion de perdida de recuperacion de portadora y de determinacion de la relacion eb/no de un enlace de transmision digital. |
Country Status (6)
Country | Link |
---|---|
US (1) | US6108373A (es) |
EP (1) | EP0658993B1 (es) |
DE (1) | DE69425477T2 (es) |
ES (1) | ES2150973T3 (es) |
FI (1) | FI945834A (es) |
FR (1) | FR2713855B1 (es) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2323502B (en) * | 1997-03-18 | 2002-03-27 | Ericsson Telefon Ab L M | Radio receiver |
JP3017983B2 (ja) * | 1997-11-19 | 2000-03-13 | 株式会社ケンウッド | 同期捕捉回路 |
CN1124009C (zh) * | 1997-12-29 | 2003-10-08 | 株式会社建伍 | 接收机的帧同步信号捕获电路 |
US7310369B1 (en) * | 2000-12-15 | 2007-12-18 | Conexant Systems, Inc. | SNR-related parameter estimation method and system |
ATE422749T1 (de) | 2004-12-15 | 2009-02-15 | Alcatel Lucent | Verfahren zur rauschmessung und entsprechendes empfangendes dsl-modem. |
US8594252B2 (en) * | 2005-08-22 | 2013-11-26 | Qualcomm Incorporated | Interference cancellation for wireless communications |
US9071344B2 (en) | 2005-08-22 | 2015-06-30 | Qualcomm Incorporated | Reverse link interference cancellation |
US8743909B2 (en) * | 2008-02-20 | 2014-06-03 | Qualcomm Incorporated | Frame termination |
US8630602B2 (en) * | 2005-08-22 | 2014-01-14 | Qualcomm Incorporated | Pilot interference cancellation |
US8611305B2 (en) * | 2005-08-22 | 2013-12-17 | Qualcomm Incorporated | Interference cancellation for wireless communications |
US7526304B2 (en) * | 2005-09-29 | 2009-04-28 | Alcatel-Lucent Usa Inc. | Method of increasing the capacity of enhanced data channel on uplink in a wireless communications system |
US9408165B2 (en) | 2008-06-09 | 2016-08-02 | Qualcomm Incorporated | Increasing capacity in wireless communications |
US9237515B2 (en) | 2008-08-01 | 2016-01-12 | Qualcomm Incorporated | Successive detection and cancellation for cell pilot detection |
US9277487B2 (en) | 2008-08-01 | 2016-03-01 | Qualcomm Incorporated | Cell detection with interference cancellation |
US20100097955A1 (en) * | 2008-10-16 | 2010-04-22 | Qualcomm Incorporated | Rate determination |
US9160577B2 (en) * | 2009-04-30 | 2015-10-13 | Qualcomm Incorporated | Hybrid SAIC receiver |
US8787509B2 (en) | 2009-06-04 | 2014-07-22 | Qualcomm Incorporated | Iterative interference cancellation receiver |
US8831149B2 (en) | 2009-09-03 | 2014-09-09 | Qualcomm Incorporated | Symbol estimation methods and apparatuses |
KR101376676B1 (ko) | 2009-11-27 | 2014-03-20 | 퀄컴 인코포레이티드 | 무선 통신들에서의 용량 증가 |
EP2505017B1 (en) | 2009-11-27 | 2018-10-31 | Qualcomm Incorporated | Increasing capacity in wireless communications |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4381546A (en) * | 1979-03-02 | 1983-04-26 | Paradyne Corporation | System for the quantitative measurement of impairments in the communication channel of a quadrature amplitude modulation data communication system |
US4449222A (en) * | 1981-11-23 | 1984-05-15 | Rockwell International Corporation | Digital modulation quality monitor |
US4555790A (en) * | 1983-06-30 | 1985-11-26 | Betts William L | Digital modem having a monitor for signal-to-noise ratio |
US4633465A (en) * | 1985-03-27 | 1986-12-30 | At&T Bell Laboratories | Eye violation detectors |
US4773083A (en) * | 1985-11-08 | 1988-09-20 | Raytheon Company | QPSK demodulator |
US4827431A (en) * | 1987-01-20 | 1989-05-02 | General Datacomm, Inc. | Methods and systems for the simultaneous quantitative measurement of phase and amplitude jitter impairments and signal to noise ratio in a qam data communication channel |
JPH0626343B2 (ja) * | 1988-12-16 | 1994-04-06 | 日本電気株式会社 | 変復調装置のデータ伝送速度自動切替方式 |
JPH0377437A (ja) * | 1989-08-19 | 1991-04-03 | Fujitsu Ltd | トランスバーサル等化による回線切替方式 |
US5438591A (en) * | 1991-07-31 | 1995-08-01 | Kabushiki Kaisha Toshiba | Quadrature amplitude modulation type digital radio communication device and method for preventing abnormal synchronization in demodulation system |
CA2056679C (en) * | 1991-11-29 | 2002-02-12 | Timothy Joseph Nohara | Automatic monitoring of digital communication channel conditions using eye patterns |
US5440582A (en) * | 1993-05-28 | 1995-08-08 | Motorola, Inc. | Method and apparatus for determining signal usability |
US5440590A (en) * | 1993-11-01 | 1995-08-08 | Motorola, Inc. | Method and apparatus for producing a usable signal from received diverse modulated signals |
-
1993
- 1993-12-15 FR FR9315086A patent/FR2713855B1/fr not_active Expired - Fee Related
-
1994
- 1994-12-12 ES ES94402853T patent/ES2150973T3/es not_active Expired - Lifetime
- 1994-12-12 DE DE69425477T patent/DE69425477T2/de not_active Expired - Fee Related
- 1994-12-12 FI FI945834A patent/FI945834A/fi unknown
- 1994-12-12 EP EP94402853A patent/EP0658993B1/fr not_active Expired - Lifetime
- 1994-12-14 US US08/355,973 patent/US6108373A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2713855A1 (fr) | 1995-06-16 |
DE69425477T2 (de) | 2001-04-05 |
US6108373A (en) | 2000-08-22 |
EP0658993B1 (fr) | 2000-08-09 |
EP0658993A1 (fr) | 1995-06-21 |
FI945834A0 (fi) | 1994-12-12 |
FI945834A (fi) | 1995-06-16 |
DE69425477D1 (de) | 2000-09-14 |
FR2713855B1 (fr) | 1996-01-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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