ES2028769T1 - Sistema para el suministro adaptivo de frecuencia de canal a un tunel. - Google Patents
Sistema para el suministro adaptivo de frecuencia de canal a un tunel.Info
- Publication number
- ES2028769T1 ES2028769T1 ES199191890124T ES91890124T ES2028769T1 ES 2028769 T1 ES2028769 T1 ES 2028769T1 ES 199191890124 T ES199191890124 T ES 199191890124T ES 91890124 T ES91890124 T ES 91890124T ES 2028769 T1 ES2028769 T1 ES 2028769T1
- Authority
- ES
- Spain
- Prior art keywords
- tunnel
- frequency
- frequency channel
- downward
- free space
- 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.)
- Pending
Links
- 230000003044 adaptive effect Effects 0.000 title 1
- 230000001174 ascending effect Effects 0.000 abstract 3
- VJYFKVYYMZPMAB-UHFFFAOYSA-N ethoprophos Chemical compound CCCSP(=O)(OCC)SCCC VJYFKVYYMZPMAB-UHFFFAOYSA-N 0.000 abstract 3
- 230000001360 synchronised effect Effects 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
- H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
DISPOSITIVO PARA ABASTECER UN TUNEL (1) DE FORMA AJUSTABLE O UN PASO A DESNIVEL O SIMILARES, CON UN CANAL DE FRECUENCIA DESCENDENTE Y OTRO ASCENDENTE, EN UN SISTEMA DE RADIO MOVIL CON ALGUNOS CANALES DE FRECUENCIA DESCENDENTES, QUE RADIAN DESDE UNA ESTACION BASE (2) Y OTROS CANALES DE FRECUENCIA ASCENDENTES, QUE RADIAN DESDE UNA ESTACION MOVIL (3), CON LO QUE SE PREVEEN UN RECEPTOR DE SCANNER DE ESPACIO LIBRE (6, 10) , QUE EXPLORA EL CANAL DE FRECUENCIA DESCENDENTE EN EL ESPACIO LIBRE Y SE ENCLAVA PRIMERAMENTE EN UN CANAL DE FRECUENCIA DESCENDENTE LIBRE, UN EMISOR DE TUNEL (7, 11) CONECTADO CON UNA FRECUENCIA SINCRONICA AL RECEPTOR DE SCANNER DE ESPACIO LIBRE, QUE IRRADIA ESTE CANAL DE FRECUENCIA DESCENDENTE AL TUNEL, UN RECEPTOR DE SCANNER DE TUNEL (8, 12) QUE EXPLORA EL CANAL DE FRECUENCIA ASCENDENTE, RADIADO DESDE LA ESTACION MOVIL AL TUNEL Y ENCLAVADO EN UN CANAL DE FRECUENCIA ACTIVO Y UN EMISOR DE ESPACIO LIBRE (9, 13) CONECTADO CON FRECUENCIA SINCRONICA EL CUAL RADIA EL CANAL DE FRECUENCIA ASCENDENTE Y CON LO QUE SE INTRODUCE EL RECEPTOR DE SCANNER DEL TUNEL DENTRO DE ESTADOS ENCLAVADOS AL RECEPTOR DE SCANNER DE ESPACIO LIBRE EN EL CANAL DE FRECUENCIA DESCENDENTE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0141490A AT394797B (de) | 1990-07-03 | 1990-07-03 | Adaptive tunnelversorgung |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2028769T1 true ES2028769T1 (es) | 1992-07-16 |
Family
ID=3513372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES199191890124T Pending ES2028769T1 (es) | 1990-07-03 | 1991-06-17 | Sistema para el suministro adaptivo de frecuencia de canal a un tunel. |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0465457A3 (es) |
AT (1) | AT394797B (es) |
ES (1) | ES2028769T1 (es) |
FI (1) | FI913176A (es) |
GR (1) | GR920300013T1 (es) |
IE (1) | IE912140A1 (es) |
MC (1) | MC2271A1 (es) |
NO (1) | NO178418C (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4335345A1 (de) * | 1993-10-16 | 1995-04-20 | Sel Alcatel Ag | Funkfeststation und Antennenanordnung zur Funkversorgung eines Tunnels |
DE19950882C2 (de) * | 1999-10-22 | 2001-10-18 | Motorola Inc | Kommunikationssystem für ein Gebiet mit eingeschränkten Empfangsmöglichkeiten |
FR2879051B1 (fr) * | 2004-12-03 | 2007-03-16 | Tdf Sa | Procede de transmission d'un signal de bande fm |
GB0614543D0 (en) * | 2006-07-21 | 2006-08-30 | Vodafone Plc | RF Distribution |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3611139A (en) * | 1970-02-25 | 1971-10-05 | Us Navy | Orthogonal mixer f{11 {0 f{11 {0 repeater |
JPH0656977B2 (ja) * | 1986-03-07 | 1994-07-27 | 日本電信電話株式会社 | 無線中継装置 |
GB8629159D0 (en) * | 1986-12-05 | 1987-01-14 | British Telecomm | Mobile radio systems |
GB8809602D0 (en) * | 1988-04-22 | 1988-05-25 | British Telecomm | Mobile radio systems |
-
1990
- 1990-07-03 AT AT0141490A patent/AT394797B/de not_active IP Right Cessation
-
1991
- 1991-06-17 EP EP19910890124 patent/EP0465457A3/de not_active Withdrawn
- 1991-06-17 ES ES199191890124T patent/ES2028769T1/es active Pending
- 1991-06-17 NO NO912335A patent/NO178418C/no unknown
- 1991-06-21 IE IE214091A patent/IE912140A1/en unknown
- 1991-06-27 MC MC912198A patent/MC2271A1/xx unknown
- 1991-06-28 FI FI913176A patent/FI913176A/fi not_active Application Discontinuation
-
1992
- 1992-08-25 GR GR92300013T patent/GR920300013T1/el unknown
Also Published As
Publication number | Publication date |
---|---|
FI913176A0 (fi) | 1991-06-28 |
NO912335D0 (no) | 1991-06-17 |
IE912140A1 (en) | 1992-01-15 |
EP0465457A2 (de) | 1992-01-08 |
FI913176A (fi) | 1992-01-04 |
GR920300013T1 (en) | 1992-08-25 |
ATA141490A (de) | 1991-11-15 |
NO178418C (no) | 1996-03-20 |
EP0465457A3 (en) | 1992-09-16 |
NO912335L (no) | 1992-01-06 |
AT394797B (de) | 1992-06-25 |
NO178418B (no) | 1995-12-11 |
MC2271A1 (fr) | 1993-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR9814501A (pt) | Processo para determinar uma potência de transmissão para um transceptor em um sistema de radiocomunicação, e, estação base | |
ES2181570B1 (es) | Metodo y sistema para comprobar la funcionalidad de canales de datos en un aparato de radio y el correspondiente sistema de estacion movil. | |
SE9601587D0 (sv) | Förfarande och anordning för att överföra en kommunikationssignal mellan en kommunikationsenhet och en basplats | |
MY115210A (en) | Optoelectronic semiconductor component | |
DK1256188T3 (da) | Tilgangskanalstruktur for trådlöst kommunikationssystem | |
BR0103287A (pt) | Esquema de antena adaptativa baseada em localização para aplicações de dados sem fio | |
NO993414L (no) | Integrert antenne | |
AR013625A1 (es) | Disposicion y metodo de comunicaciones sin cable. | |
FI921171A (fi) | Cellulaertelefonnaet och foerfarande foer dess drift | |
ES2145830T3 (es) | Equipamiento de instalacion de abonado para recibir datos en sentido descendente a alta velocidad por un sistema de television por cable y transmitir señales en sentido ascendente a velocidad mas baja por un canal separado. | |
ES2108711T3 (es) | Procesador de datos radiofrecuencia para television por cable. | |
ES2100086T3 (es) | Sistema doble de antenas distribuidas. | |
BR9306259A (pt) | Sistema para radiocomunicação e sua aplicação | |
AR046455A1 (es) | Un metodo y un sistema para proveer informacion de asignacion de canal utilizado para soportar canales ascendentes y descendentes | |
ATE526732T1 (de) | Kommunikationssystem | |
DE59004235D1 (de) | Strahlungserzeugendes Halbleiterbauelement. | |
ES2160400T3 (es) | Dispositivo de comunicacion inalambrica y sistema que incorpora medios de determinacion de posicion. | |
AR040768A1 (es) | Control de potencia de canales fisicos punto-multipunto | |
SE9604739L (sv) | Mobil kommunikationsenhet jämte radiosändare för kommunikation med en dylik mobil kommunikationsenhet | |
FI92259B (fi) | Järjestely vastaanotinantennin kunnon mittaamiseksi | |
ES2028769T1 (es) | Sistema para el suministro adaptivo de frecuencia de canal a un tunel. | |
JPS5328308A (en) | Countermeasure system for trouble o f mobile radio | |
DE60129723D1 (de) | Hörgerät mit einem hochfrequenzempfänger | |
KR960019813A (ko) | 양방향성 비전도 광 데이타 전송을 위한 반도체 장치 | |
BR9811363A (pt) | Processo para alocaçào de potência usada por uma estação transceptora de base em um sistema de telefone móvel, e, aparelho amplificador de potência de radiofrequência para alocação de potência fornecida em uma estação transceptora de base em um sistema de telefone móvel |