FI79214B - BILTELEFONSYSTEM. - Google Patents
BILTELEFONSYSTEM. Download PDFInfo
- Publication number
- FI79214B FI79214B FI854853A FI854853A FI79214B FI 79214 B FI79214 B FI 79214B FI 854853 A FI854853 A FI 854853A FI 854853 A FI854853 A FI 854853A FI 79214 B FI79214 B FI 79214B
- Authority
- FI
- Finland
- Prior art keywords
- radio
- active
- populated areas
- mobile
- operates
- Prior art date
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
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- 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
- H04B7/2621—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using frequency division multiple access [FDMA]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Telephone Function (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Dental Preparations (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
Description
7921479214
AutopuhelinjärjestelmäAuto Telephone system
Keksintö kohdistuu autoouhelin järjestelmään, jossa on kiinteitä ja siirtyviä tilaaja-asemia radioverkon suuralueella, joka verkko käsittää useita radioko s kittimiä keskinäisessä alueellisessa järjestelyssä.The invention relates to a car audio system having fixed and mobile subscriber stations in a wide area of a radio network, which network comprises a plurality of radio receivers in a mutual regional arrangement.
Vanhoissa järjestelmissä käytetään suhteellisen alhaisia taajuuksia (VHF-alue), joiden etuna on suhteellisen suuri kantama. Näissä järjestelmissä, jotka soveltuvat hyvin maaseutualueille, voi olla kuitenkin vain suhteellisen vähän kanavia. Tällä taajuusalueella ei siten voida toteuttaa vyöhykejärjes-telmää.Older systems use relatively low frequencies (VHF range), which have the advantage of relatively high range. However, these systems, which are well suited to rural areas, may have relatively few channels. Thus, a zone system cannot be implemented in this frequency range.
Uusissa järjestelmissä käytetään UHF-alueella olevia siirtokanavia. Näillä saadaan suuret kanavakapasiteetit pienemmällä kantamalla, minkä vuoksi ne soveltuvat hyvin suppeahkoille I tiheästi asutuille alueille. Pienestä kantamasta johtuen maa- seutualueiden radiopeittoa varten on pystytettävä erittäin *·*·’ monia kiinteitä asemia.The new systems use transmission channels in the UHF band. These provide large canal capacities with a smaller range, making them very suitable for rather narrow I densely populated areas. Due to the small range, a very * * * · ’number of fixed stations need to be set up for radio coverage in rural areas.
: Keksintö perustuu tehtävään esittää ratkaisu yhtenäiselle : radiojärjestelmälle asukastiheydeltään vaihtelevan alueen kattamiseksi.: The invention is based on the object of presenting a solution for a uniform: radio system for covering an area with varying population density.
Tämä tehtävä ratkaistaan keksinnön mukaan autopuhelinjärjestel-mällä, joka muodostuu kahdesta radio-osasta kussakin radio-latteesss, joista radio-osista toinen toimii VHF- ja toinen UHF-alueella ja molempia radio-osia valvovasta ja tarvittaessa ' : vaihtokytkennän aikaansaavasta ohjauksesta.According to the invention, this object is solved by a car telephone system consisting of two radio parts in each radio latency, one of which operates in the VHF and the other in the UHF area and the control which monitors both radio parts and, if necessary, provides switching.
.V Keksinnön kohteen edullisissa toteutuksissa ja kehitystuloksissa on menetelty siten, että ohjaus aikaansaa samalla radiokeskit-timen ja siirtyvän aseman välisen datasignaloinnin ja että VHF-alueen radio-osa on aktiivinen harvaan asutuilla alueilla 7921 4 2 ja toimii suurella lähetysteholla ja UHF-alueen radio-osa on aktiivinen tiheästi asutuilla alueilla ja toimii suhteellisen pienellä lähetysteholla..V In the preferred embodiments and development results of the object of the invention, it has been arranged that the control at the same time provides data signaling between the radio hub and the mobile station and that the radio part of the VHF area is active in sparsely populated areas 7921 4 2 and operates at high transmission power and UHF area radio some are active in densely populated areas and operate at relatively low transmission power.
Keksintö selitetään vielä lähemmin seuraavassa.The invention is explained in more detail below.
Keksinnön oerusajatus käsittää sen, että autopuhelinjärjestel-mässä on yhdistetty kaksi radio-osaa. Näitten radio-osien radioalueet ovat tällöin VHF- ja UHF-alueella. AutoDuhelimessa on kuitenkin vain yksi ohjaus, joka ohjaa molempia radioalueita ja joka aikaansaa radiokeskittimen ja siirtyvän aseman välisen datasignaloinnin.The basic idea of the invention comprises that two radio parts are connected in a car telephone system. The radio regions of these radio parts are then in the VHF and UHF regions. However, the AutoDuhel has only one control that controls both radio areas and that provides data signaling between the radio hub and the mobile station.
UHF-alueen (esimerkiksi 900 MHz) radio-osa voi toimia suhteellisen pienellä teholla (noin 1 W) ja se on tarkoitettu kaupunki-käyttöön. VHF-alueen (esimerkiksi 30 MHz tai 160 MHz) radio-osa on tarkoitettu maaseutualueiden kattamiseen. Siihen tarvitaan suuri lähetysteho (noin 15 W). Molempia radio-osia valvova ohjaus ottaa mikäli mahdollista käyttöön ensimmäisen I radio-osan, ts. UHF-alueen kanavat. Autopuhelin on tällöin ;* * kaupunkialueella. Tällä ohjauksella varmistetaan, että pien-·'·' taajuisia kanavia, joita on vain vähän, käytetään myös vain ..: silloin, kun suurtaajuisia kanavia (UHF-alueella) ei voida ; käyttää. Autopuhelin on tällöin maaseutualueella. Vaihto-: i kytkentä voidaan tällöin suorittaa myös puhelun aikana.The radio part of the UHF band (for example, 900 MHz) can operate at relatively low power (about 1 W) and is intended for urban use. The radio part of the VHF band (for example 30 MHz or 160 MHz) is intended to cover rural areas. It requires a high transmission power (about 15 W). If possible, the control supervising both radio parts activates the channels of the first radio part I, i.e. the UHF band. The car phone is then; * * In an urban area. This control ensures that low frequency channels are used only ..: when high frequency channels (in the UHF range) are not possible; use. The car phone is then in a rural area. The switching can then also be performed during a call.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3444989 | 1984-12-10 | ||
DE19843444989 DE3444989A1 (en) | 1984-12-10 | 1984-12-10 | CAR TELEPHONE SYSTEM |
Publications (4)
Publication Number | Publication Date |
---|---|
FI854853A0 FI854853A0 (en) | 1985-12-09 |
FI854853A FI854853A (en) | 1986-06-11 |
FI79214B true FI79214B (en) | 1989-07-31 |
FI79214C FI79214C (en) | 1989-11-10 |
Family
ID=6252372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI854853A FI79214C (en) | 1984-12-10 | 1985-12-09 | Car telephone system. |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0186004B1 (en) |
AT (1) | ATE48215T1 (en) |
DE (2) | DE3444989A1 (en) |
DK (1) | DK163161C (en) |
FI (1) | FI79214C (en) |
NO (1) | NO169315C (en) |
ZA (1) | ZA859393B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2201866B (en) * | 1987-03-04 | 1991-04-17 | Michael Victor Rodrigues | Improvements in or relating to cellular telephone apparatus and a cellular communications system |
DE3721889A1 (en) † | 1987-07-02 | 1989-01-12 | Standard Elektrik Lorenz Ag | COMPUTER CONTROLLED SUBSCRIBER DEVICE FOR OPERATION IN TELECOMMUNICATION NETWORKS, IN PARTICULAR MOBILE RADIO NETWORKS, WITH DIFFERENT SYSTEM TECHNOLOGY |
US4989230A (en) * | 1988-09-23 | 1991-01-29 | Motorola, Inc. | Cellular cordless telephone |
DE4118992A1 (en) * | 1991-06-08 | 1992-12-10 | Aeg Mobile Communication | MOBILE PHONE ARRANGEMENT |
DE4118994A1 (en) * | 1991-06-08 | 1992-12-10 | Aeg Mobile Communication | Mobile subscriber telephone network - allows access to two different networks using card inserted in hand set reader or using cards in separate reader |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2659570C2 (en) * | 1976-12-30 | 1983-04-07 | Siemens AG, 1000 Berlin und 8000 München | Telephone and data network for fixed and mobile subscriber stations |
DE2805420A1 (en) | 1978-02-09 | 1979-08-16 | Bosch Gmbh Robert | RADIO SYSTEM FOR TRANSMISSION OF MESSAGES |
US4355411A (en) * | 1980-03-24 | 1982-10-19 | Bell Telephone Laboratories, Incorporated | Technique for efficient spectrum utilization in mobile radio systems using space diversity |
DE3321997A1 (en) * | 1982-12-03 | 1984-06-14 | ANT Nachrichtentechnik GmbH, 7150 Backnang | RADIO SYSTEM |
-
1984
- 1984-12-10 DE DE19843444989 patent/DE3444989A1/en not_active Withdrawn
-
1985
- 1985-12-06 DE DE8585115519T patent/DE3574442D1/en not_active Expired
- 1985-12-06 AT AT85115519T patent/ATE48215T1/en not_active IP Right Cessation
- 1985-12-06 EP EP85115519A patent/EP0186004B1/en not_active Expired
- 1985-12-09 FI FI854853A patent/FI79214C/en not_active IP Right Cessation
- 1985-12-09 ZA ZA859393A patent/ZA859393B/en unknown
- 1985-12-09 NO NO854947A patent/NO169315C/en unknown
- 1985-12-09 DK DK568785A patent/DK163161C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO169315B (en) | 1992-02-24 |
DK163161B (en) | 1992-01-27 |
EP0186004A1 (en) | 1986-07-02 |
ATE48215T1 (en) | 1989-12-15 |
NO854947L (en) | 1986-06-11 |
DK163161C (en) | 1992-06-22 |
ZA859393B (en) | 1986-08-27 |
DK568785A (en) | 1986-06-11 |
FI854853A0 (en) | 1985-12-09 |
DK568785D0 (en) | 1985-12-09 |
FI79214C (en) | 1989-11-10 |
EP0186004B1 (en) | 1989-11-23 |
FI854853A (en) | 1986-06-11 |
DE3444989A1 (en) | 1986-06-12 |
DE3574442D1 (en) | 1989-12-28 |
NO169315C (en) | 1992-06-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: SIEMENS AKTIENGESELLSCHAFT |