GB2276061A - Satellite mobile radio telephone apparatus - Google Patents
Satellite mobile radio telephone apparatus Download PDFInfo
- Publication number
- GB2276061A GB2276061A GB9305021A GB9305021A GB2276061A GB 2276061 A GB2276061 A GB 2276061A GB 9305021 A GB9305021 A GB 9305021A GB 9305021 A GB9305021 A GB 9305021A GB 2276061 A GB2276061 A GB 2276061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mobile radio
- geostationary satellite
- microwave
- radio telephone
- channel global
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18569—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance
- H04B7/18571—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance for satellites; for fixed or mobile stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The mobile telephone handset comprises a VFH radio receiver/control Module, 1, a duplex Microwave Mobile radio telephone unit, 2, which is adapted to receive, monitor, process and transmit Microwave telecommunication signals from and to a network of multi-channel global geostationary satellite radio telecommunication stations. The VHF module, 1, and duplex microwave radio telephone unit, 2, are powered by a battery, 3 in order to reduce the power consumption, a normally open, controlled solid state relay switch, 4, is provided between the battery, 3, and the duplex microwave mobile radio telephone unit, 2, together with a signal means, 6, to close the said solid state relay switch, 4, in response to a specific digitally coded VHF radio transmitted signal, 19v, transmitted by the stations. <IMAGE>
Description
lmrovements in Multi-channel Global Geostationary Satellite Mobile Radio
Telephone Apparatus 1 Multi-channel Global Geostationarv Satellite Mobile Radio
Telecommunication Station NetworWSvstems.
The present invention relates to improvements to Multi-channel Global Geostationary
Satellite Mobile radio telephone apparatus and Multi-channel Global Geostationary
Satellite Mobile Radio Telecommunication Station Networkisystem. More particularly the invention relates to improvements incorporating embodiments to both the network infrastructurelsystem and apparatus to attain a significant reduction in battery energy consumption in the Global Mobile Radio Telephone Apparatus which is a major concern of Mobile Apparatus users.
At the present time, international duplex microwave Global Geostationary Satellite
Mobile radio telecommunication networks are being established and/or are proposed.
Using a limited number of Global Geostationary Satellites strategically located around the planet Earth, the system enables one to dial and make or receive telephone calls from a hand-held Mobile phone if on board a ship, or aircraft, or vehicle, or alone, to any other telephone (including cellular telephones) in the world.
The area of the planet Earth is divided by the Network into smaller areas "Geostationary
Satellite Zones". Each Geostationary Satellite Zone is served by a radio transmitting and receiving telecommunication station on board a Geostationary Satellite or "Satellite
Telecommunication Station", the range of which overlaps adjacent Geostationary
Satellite Zones.Utilising specially dedicated Microwave radio frequency Multi-channels (for transmitting and receiving), each Global Satellite Phone is in communication with the Geostationary Satellite Telecommunication station which in turn is (microwave) linked back to a central computer controlled "Multi-channel Global Geostationary
Satellite Mobile Radio Telecommunication Switching Centre" which provides the necessary telecommunication link with other Satellite Mobile Phones in the same and other Geostationary Satellite Zones, and also with other Cellular, National and
International switched telephone networks.
To enable users to continue their calls uninterrupted while moving around the world, the
NetworklSystem automatically switches control of the call from the Global Geostationary
Satellite Zone they are leaving to the Global Geostationary Satellite Zone they are entering.
To Register, Monitor and Respond to the NetworklSystem control commands and to scan the broad band frequency spectrum of Multi-channel duplex microwave Global
Geostationary Satellite Radio Mobile Telecommunications System, each Global Satellite
Phone apparatus is provided with typically a Watchdog Circuit, a Duplexer Unit, a
Synthesiser, a Universal Asychronous Receiver/Transmitter (UART), a
Decoder/Encoder Unit, an Audio Path Circuit and an Analogue to Digital Converter, all of which must be active or energised in the "Standby Mode".
Because of the energising of all these circuits in the Standby Mode, the current consumption of presenttproposed Global Satellite Telephone Apparatus is significantly high (typically 35 - 125 milliamps). This is because the microchip integrated circuitry necessitates the use of Bipolar andlor Gallium Arsenide microchips, which at Microwave
Frequencies have a relatively high currenVenergy consumption, which limits the battery life of the phone to a maximum of 18 hours in Standby. Short battery life leads to loss of calls which in turn leads to a significant loss of business to the Global Satellite Phone
Subscriber as well as the Global Network and other telephone Network providers.
On the other hand, VHF Digital Radio Pagers which operate on lower radio frequencies the VHF band (typically 120 - 180 MHz), are able to use CMOS micro-chip transistorised circuitry, offering significantly lower current consumption, typically 2 milliamps, are significantly smaller and lighter and have a longer battery life typically 450 hours
OBJECT
The object of the present invention is to provide a means for reducing battery energy consumption of Global Satellite Telephone Apparatus when in the Standby Mode together with corresponding modifications and additions to the Global Geostationary
Satellite Radio Telecommunication NetworklSystem SoftwarelHardware necessary to operate the means for reducing the battery energy consumption.
Because this invention reduces battery energy is so significantly, it is feasible to design portable Global Satellite Phones with smaller battery packs and hence smaller and lighter overall sizes. Additionally microwave congestion of the airwaves is reduced and the possible dosage from microwave radiation is minimised, as the microwave circuit units are de-energised during standby.
REFERENCE TO DRAWINGS:
In order that the invention may be more readily understood, and so that further features thereof may be appreciated, the invention will now be described by way of example with reference to the accompanying drawings in which:
FIGURE 1 is a block circuit diagram of a Multi-channel Global Satellite Mobile radio telephone apparatus in accordance with the invention
FIGURE 2 is a typical illustration of a Multi-channel Global Geostationary Satellite
Mobile Radio Telecommunication NetworklSystem.
DESCRIPTION
Referring to the drawings, there is provided a Multi-channel Global Geostationary
Satellite Mobile Radio Telephone Apparatus (Figure 1) / Multi-channel Global
Geostationary Satellite Mobile Radio Telecommunication Station NetworkiSystem (Figure 2), the apparatus comprising a VHF radio receiver/control Module, 1, a duplex
Microwave Mobile radio telephone unit, 2, which is adapted to receive, monitor, process and transmit Microwave telecommunication signals, 19m, from and to the Network of
Multi-channel Global Geostationary Satellite radio telecommunication stations, 18
Figure 2. The VHF module, 1, and duplex microwave radio telephone unit, 2, are powered by a battery, 3.A normally open, controlled solid state relay switch, 4, is provided between the battery, 3, and the duplex Microwave Mobile radio telephone unit, 2, together with a signal means, 6, to close the said solid state relay switch, 4, in response to a specific digitally coded VHF radio transmitted signal, 19v, transmitted by the stations, 18. The VHF module, 1, embodies a decoder circuit, Id, adapted to decode the specific digitally coded VHF radio signal, 19v, which when received, is adapted to produce an output signal, 5, to (directly or indirectly) activate the solid state relay switch, 4, which activates the duplex Microwave Mobile radio telephone unit, 2.
The solid state relay switch, 4, is closed and maintained in the closed position in response to a signal, 6, received from the provision of a solid state timer, 7, (typically 60 seconds) activated/reactivated by a signal, 8, received from an additionally provided solid state multi-input (typically 3 inputs) "OR" gate Integrated Circuit (I.C.), 9. The multi-input solid state IC, 9, is activatedireactivated either by the output signal, 5, received from the VHF radio receiver/control Module, 1, andlor an "IN USE" signal, 10, received from the microwave duplex Mobile radio telephone unit, 2, (if in use), andlor a signal, 11, via an additionally provided normally open manual push button momentary switch, 12. The momentary switch, 12, serves to activate the telephone unit, 2, when a call is to be made.
The microwave duplex Mobile radio telephone unit, 2, is provided with a manual onloff switch1 13, connected in parallel, 141151 to (by-passirestore) the solid state relay switch, 4, together with a supplementary manual onloff switch, 16, provided to interruptlrestore the battery power supply, 3, to the VHF receiverlcontrol Module, 1. The supplementary manual on/off switch, 16, and the said by-pass manual switch, 13, are ganged, 17, so as to be "on" when one is "off,', and vice versa when desired, so that the apparatus can be in either the "Fast Response, High Battery Consumption/Microwave Standby Mode" or alternatively the "Slower Response, Lower Battery ConsumptionNHF Standby
Mode".
Referring to figure 2, each station, 18, embodies means to transmit and receive signals, 19, from the Mobile radio telephones, 20, and includes means to transmit the specific digitally coded VHF radio signals, 19v, to the specifically desired Mobile radio telephones, 20, as and when an incoming call is received for a specifically desired said
Mobile radio telephone, 20.
The Central Computer Controlled Multi-channel Global Geostationary Satellite Mobile
Radio Telephone Switching Centre, 21, which is microwave linked, 24, (directly or indirectly) to the Geostationary Satellite Radio Telecommunication Stations, 18, is provided with specially adapted Software/Hardware to control the transmission of the additional specific digitally coded VHF radio signal, 19v to the specifically desired
Mobile radio telephones, 20, a predetermined period of time (typically 3 seconds) before the networklsystem microwave telecommunication paging signals, 19m, are transmitted to the said specifically desired Mobile radio telephones, 20.
The specific digitally coded VHF radio signals, 19v, are preferably at a frequency not below 120 MHz and not above 180 MHz.
The Multi-channel Global Geostationary Satellite Mobile Radio Telephone Switching
Centre, 21, provides the necessary telecommunication link with other Satellite Mobile
Phones, 20, in the same and other Geostationary Satellite Zones, and also with other
Cellular, National and International switched telephone networks, 22, to provide the necessary link up to any telephone, 23, in the World.
Claims (7)
1. A Multi-channel Global Geostationary Satellite Mobile radio telephone apparatus/Multi-channel Global Geostationary Satellite Mobile Radio
Telecommunication Station Network/System characterised in that said apparatus comprises a VHF radio receiver/control Module1 a duplex Microwave Mobile radio telephone unit adapted to receive, monitor, process and transmit microwave telecommunication signals from and to the said Network of Multi-channel Global
Geostationary Satellite radio telecommunication stations, the said VHF module and said duplex microwave radio telephone unit embodying and powered by a battery, embodying a normally open, controlled solid state relay switch provided between the said battery and said the duplex Microwave Mobile radio telephone unit, together with means to close the said solid state relay switch in response to a specific digitally coded
VHF radio transmitted signal, transmitted by the said stations, the said VHF module embodying a decoder circuit adapted to decode the said specific digitally coded VHF radio signal, which when received, is adapted to produce an output signal to (directly or indirectly) activate the said solid state relay switch, which activates the said duplex
Microwave Mobile radio telephone unit.
2. A Multi-channel Global Geostationary Satellite Mobile radio telephone apparatus/Multi-channel Global Geostationary Satellite Mobile Radio
Telecommunication Station NetworklSystem according to claim 1, characterised in that the said solid state relay switch is maintained in the closed position in response to a signal received from the provision of a solid state timer (typically 60 seconds) activated/reactivated by a signal received from an additionally provided solid state multiinput (typically 3) "OR" gate Integrated Circuit (I.C.), the said multi-input solid state IC being activated/reactivated either by the said output signal received from the said VHF radio receiver/control Module, and/or an "IN USE" signal received from the said microwave duplex Mobile radio telephone unit (if in use), and/or a signal via an additionally provided normally open manual push button momentary switch1 the said momentary switch serves to activate the said telephone unit when a call is to be made.
3. A Multi-channel Global Geostationary Satellite Mobile radio telephone apparatus/Multi-channel Global Geostationary Satellite Mobile Radio
Telecommunication Station NetworklSystem according to any one or more of the preceding claims characterised in that the said microwave duplex Mobile radio telephone unit is provided with a manual onloff switch connected in parallel to bypass/restore the said solid state relay switch, together with a supplementary manual on/off switch, provided to interrupt/restore the power supply to the said VHF receiver/control Module, the said supplementary manual on/off switch and the said by pass manual switch being ganged so as to be on when the other is off, and vice versa when desired, so that the said apparatus can be in either the "Fast Response, High
Battery Consumption/Microwave Standby Mode" or alternatively the "Slower Response,
Lower Battery ConsumptionNHF Standby Mode".
4. A Multi-channel Global Geostationary Satellite Mobile radio telephone apparatuslMulti-channel Global Geostationary Satellite Mobile Radio
Telecommunication Station Network/System according to any one or more of the preceding claims embodying a plurality or network of Multi-channel Global
Geostationary Satellite duplex radio stations, each station embodying means to transmit and receive signals from the said Mobile radio telephones, characterised in that the network further includes means to transmit the said specific digitally coded VHF radio signals to the specifically desired said Mobile radio telephones, as and when an incoming call is received for a specifically desired said Mobile radio telephone.
5. A Multi-channel Global Geostationary Satellite Mobile radio telephone apparatuslMulti-channel Global Geostationary Satellite Mobile Radio
Telecommunication Station Network/System according to any one or more of the preceding claims, characterised in that the Central Computer Controlled Multi-channel
Global Geostationary Satellite Mobile Radio Telecommunication Switching Centre which is microwave linked (directly or indirectly) to the Geostationary Satellite Radio
Telecommunication Stations, is provided with specially adapted SoftwarelHardware to control the transmission of the said additional specific digitally coded VHF radio signal to the said specifically desired Mobile radio telephones, a predetermined period of time (typically 3 seconds) before the network/system microwave telecommunication paging signals are transmitted to the said specifically desired Mobile radio telephones.
6. A Multi-channel Global Geostationary Satellite Mobile radio telephone apparatus/Multi-channel Global Geostationary Satellite Mobile Radio
Telecommunication Station network/system, according to any one or more of the preceding claims, characterised in that the said specific digitally coded VHF radio signals are at a frequency not below 120 MHz and not above 180 MHz.
7. A Multi-channel Global Geostationary Satellite Mobile radio telephone apparatusiMulti-channel Global Geostationary Satellite Mobile Radio
Telecommunication Station network/system, substantially as characterised in the detailed description with reference to and as characterised in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9305021A GB2276061A (en) | 1993-03-11 | 1993-03-11 | Satellite mobile radio telephone apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9305021A GB2276061A (en) | 1993-03-11 | 1993-03-11 | Satellite mobile radio telephone apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9305021D0 GB9305021D0 (en) | 1993-04-28 |
| GB2276061A true GB2276061A (en) | 1994-09-14 |
Family
ID=10731887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9305021A Withdrawn GB2276061A (en) | 1993-03-11 | 1993-03-11 | Satellite mobile radio telephone apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2276061A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2284728A (en) * | 1993-12-10 | 1995-06-14 | Motorola Inc | Low power, addressable data communications device |
| US5872523A (en) * | 1996-03-12 | 1999-02-16 | Motorola, Inc. | Target device and method for establishing a communication path in a networked communications system |
| EP0966851B1 (en) * | 1997-03-14 | 2002-06-05 | Siemens Aktiengesellschaft | Method for transmitting information to a mobile part of a satellite telecommunications system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2201866A (en) * | 1987-03-04 | 1988-09-07 | Michael Victor Rodrigues | Cellular telephone apparatus |
-
1993
- 1993-03-11 GB GB9305021A patent/GB2276061A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2201866A (en) * | 1987-03-04 | 1988-09-07 | Michael Victor Rodrigues | Cellular telephone apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2284728A (en) * | 1993-12-10 | 1995-06-14 | Motorola Inc | Low power, addressable data communications device |
| US5606313A (en) * | 1993-12-10 | 1997-02-25 | Motorola, Inc. | Low power addressable data communication device and method |
| GB2284728B (en) * | 1993-12-10 | 1998-03-04 | Motorola Inc | Low power addressable data communication device and method |
| US5872523A (en) * | 1996-03-12 | 1999-02-16 | Motorola, Inc. | Target device and method for establishing a communication path in a networked communications system |
| EP0966851B1 (en) * | 1997-03-14 | 2002-06-05 | Siemens Aktiengesellschaft | Method for transmitting information to a mobile part of a satellite telecommunications system |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9305021D0 (en) | 1993-04-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |