ES2101633B1 - Terminal celular fijo para servicios de telecomunicaciones a dos hilos. - Google Patents
Terminal celular fijo para servicios de telecomunicaciones a dos hilos.Info
- Publication number
- ES2101633B1 ES2101633B1 ES09401191A ES9401191A ES2101633B1 ES 2101633 B1 ES2101633 B1 ES 2101633B1 ES 09401191 A ES09401191 A ES 09401191A ES 9401191 A ES9401191 A ES 9401191A ES 2101633 B1 ES2101633 B1 ES 2101633B1
- Authority
- ES
- Spain
- Prior art keywords
- wire
- terminal
- telecommunication services
- telephone terminal
- cell phone
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/021—Terminal devices adapted for Wireless Local Loop operation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
- H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
- H04B3/238—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using initial training sequence
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
TERMINAL CELULAR FIJO PARA SERVICIOS DE TELECOMUNICACIONES A DOS HILOS. PARA ACCEDER A UNA RED DE COMUNICACIONES MOVILES Y PROVEER SERVICIOS BASICOS DE TELECOMUNICACIONES DE LA RED PUBLICA CONMUTADA A UN TERMINAL TELEFONICO (TT2) ORDINARIO CONECTADO A EL. DICHO TERMINAL SE DERIVA DE UN TERMINAL CELULAR MOVIL GSM, CON TRANSMISION A CUATRO HILOS DURANTE TODO EL TRAYECTO, COMPRENDIENDO UN CIRCUITO DE CONVERSION A DOS HILOS (H) CONECTADO ENTRE LOS PARES DE TRANSMISION (TP) Y DE RECEPCION (RP) Y LA LINEA DE ABONADO (SL) DEL TERMINAL TELEFONICO (TT2). COMPRENDE ADEMAS UN CANCELADOR DE ECO (EC) PREVIO AL CIRCUITO DE CONVERSION A DOS HILOS (H), PARA SUBSTRAER PARTE DE UNA PRIMERA SEÑAL (FS) CON DESTINO AL TERMINAL TELEFONICO (TT2) DE UNA SEGUNDA SEÑAL (SS) PROCEDENTE DEL MISMO Y COMPENSAR DE ESTA FORMA PARTE DEL ECO PRODUCIDO PRINCIPALMENTE EN EL TERMINAL TELEFONICO (TT2) Y EN EL CIRCUITO DE CONVERSION A DOS HILOS (H).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09401191A ES2101633B1 (es) | 1994-05-31 | 1994-05-31 | Terminal celular fijo para servicios de telecomunicaciones a dos hilos. |
ZA953851A ZA953851B (en) | 1994-05-31 | 1995-05-11 | Fixed cellular terminal for two-wire telecommunications services |
AU26159/95A AU2615995A (en) | 1994-05-31 | 1995-05-26 | Fixed cellular terminal device providing a two-wire telecommunications service |
PCT/EP1995/001988 WO1995033351A1 (en) | 1994-05-31 | 1995-05-26 | Fixed cellular terminal device providing a two-wire telecommunications service |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09401191A ES2101633B1 (es) | 1994-05-31 | 1994-05-31 | Terminal celular fijo para servicios de telecomunicaciones a dos hilos. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2101633A1 ES2101633A1 (es) | 1997-07-01 |
ES2101633B1 true ES2101633B1 (es) | 1998-03-01 |
Family
ID=8286444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES09401191A Expired - Fee Related ES2101633B1 (es) | 1994-05-31 | 1994-05-31 | Terminal celular fijo para servicios de telecomunicaciones a dos hilos. |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU2615995A (es) |
ES (1) | ES2101633B1 (es) |
WO (1) | WO1995033351A1 (es) |
ZA (1) | ZA953851B (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2757005B1 (fr) * | 1996-12-11 | 1999-07-16 | France Telecom | Interface de connexion entre radiotelephone et dispositif a circuits analogiques |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2501438A1 (fr) * | 1981-03-03 | 1982-09-10 | Thomson Csf Mat Tel | Dispositif de commande de convergence pour annuleur d'echo numerique |
ES8603129A1 (es) * | 1985-02-08 | 1985-12-01 | Telettra Espanola | Sistema de acceso multiple,via radio,para telefonia rural |
AT391784B (de) * | 1987-11-25 | 1990-11-26 | Siemens Ag Oesterreich | Verfahren zur adaptiven kompensation eines echos in einer kommunikationseinrichtung |
GB2213686A (en) * | 1987-12-09 | 1989-08-16 | Racal Communications Equip | Radio telephone terminal unit |
GB2245459A (en) * | 1990-06-20 | 1992-01-02 | Motorola Inc | Echo canceller with adaptive voice switch attenuation |
ES2038904B1 (es) * | 1991-09-10 | 1995-01-16 | Alcatel Standard Electrica | Procedimiento y dispositivo de cancelacion adaptativa de ecos acusticos. |
US5295136A (en) * | 1992-04-13 | 1994-03-15 | Motorola, Inc. | Method of performing convergence in a, least mean square, adaptive filter, echo canceller |
-
1994
- 1994-05-31 ES ES09401191A patent/ES2101633B1/es not_active Expired - Fee Related
-
1995
- 1995-05-11 ZA ZA953851A patent/ZA953851B/xx unknown
- 1995-05-26 AU AU26159/95A patent/AU2615995A/en not_active Abandoned
- 1995-05-26 WO PCT/EP1995/001988 patent/WO1995033351A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
ZA953851B (en) | 1996-03-29 |
ES2101633A1 (es) | 1997-07-01 |
AU2615995A (en) | 1995-12-21 |
WO1995033351A1 (en) | 1995-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19970701 Kind code of ref document: A1 Effective date: 19970701 |
|
FD1A | Patent lapsed |
Effective date: 20020401 |