JP2000068918A - Satellite communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a satellite communication terminal whose management procedure is simplified. SOLUTION: A satellite terminal 10 is connected to a telephone terminal 20 with an exclusive cable 7 to operate the satellite terminal 10 and the telephone terminal 20 as satellite communication terminals. In this case, system information stored in a system information management memory block 14 such as security information, an ID number, speech history information, alarm information, toll charge information and registration position management information in the telephone terminal 20 is transferred to a common share system information area 5 in a storage circuit 4 of the satellite terminal 10 and the system information is processed as system information of the satellite terminal 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite communication terminal, and more particularly to a satellite communication terminal comprising a portable terminal for satellite communication and a terrestrial digital portable telephone terminal.

[0002]

2. Description of the Related Art A portable terminal for satellite communication (hereinafter referred to as a satellite terminal) is a (terrestrial digital) portable telephone terminal (machine).
(Cellular) or personal handy phone system (simplified mobile phone), a miniature and portable satellite communication terminal similar to a terminal. Carry it to the point you want to use, install it there and point the antenna at the satellite, or It is capable of talking, facsimile (FAX), and data communications with a public communication network or other mobile bodies (terrestrial and satellite systems) while moving.

[0003] There are cases where a satellite terminal is used alone and cases where a digital portable telephone terminal called a satellite communication terminal device and a satellite terminal are connected by a dedicated cable. In this case, a digital mobile phone terminal should be used within the cellular area (usable area of mobile phone),
Use in satellite mode outside the cellular area.

In the conventional satellite communication terminal device shown in FIG. 3, a satellite terminal 10 and a digital mobile phone terminal 20 are connected by a cable 7, an authentication request is issued from the satellite terminal 10, and The connection was confirmed each time by the authentication signal. Referring to FIG. 3, a conventional satellite communication terminal includes a satellite communication portable terminal 10, a terrestrial digital portable telephone terminal 20, and a satellite communication portable terminal 1.
0 and a cable 7 connecting the terrestrial digital mobile phone terminal 20.

The portable terminal 10 for satellite communication transmits and receives microwaves to and from a communication satellite (not shown), and transmits and receives to and from a public communication network (not shown) via the antenna 1 for satellite communication. Is provided. In addition, a control circuit 3 which is a kind of computer for controlling the entire portable terminal 10 for satellite communication, a storage circuit 4 for storing system information 8 and individual information 6 and the like, and a handset 9 for performing satellite communication via the direct communication circuit 2 are provided. It is composed.

Further, a terrestrial digital portable telephone terminal 2
Reference numeral 0 denotes an antenna 16 for performing wireless transmission and reception with a cellular terrestrial base station (not shown), and a communication circuit 11 for performing transmission and reception with a public communication network (not shown) via the antenna 16. Furthermore, the control circuit 12, which is a kind of computer for controlling the whole terrestrial digital mobile phone terminal 20,
It has a storage circuit 13 for storing system information 14, individual information 15, and the like.

The satellite terminal 10 and the digital portable telephone terminal 20 have security information, ID numbers,
Communication history information, alarm information, charging information, registered position management information, and the like are stored as system information 8 and 14. Each of the satellite terminal 10 and the digital mobile phone terminal 20 includes therein a country code, a carrier code, available optional functions (echo canceller on / off, answering machine function, broadcast function, etc.), device alarm information, and device. It has a management number and the like as individual information 6 and 15.

First, when operating as a satellite communication terminal device, as shown in FIG. 4, device authentication of both devices 10 and 20, verification of ID numbers, alarm verification of a satellite system and a cellular system, verification of a cellular area or out of a cellular area. Is checked, and only when everything is good is a standby state in which calls can be made. That is, the satellite terminal 10 requests a device confirmation signal a. The telephone terminal 20 responds with the device confirmation signal b
Then, the satellite terminal 10 checks the device number.

The satellite terminal 10 requests transmission of an ID codeg
Then, the telephone terminal 20 transmits (responds) the ID code h,
The satellite terminal 10 checks the ID code. The satellite terminal 10 requests the transmission of security information i, the telephone terminal 20 transmits (responds) j the security information, and the satellite terminal 10 confirms the security information. The satellite terminal 10 requests the transmission of the call history k, the telephone terminal 20 transmits (responds) 1 the call history, and the satellite terminal 10 confirms the call history.

The satellite terminal 10 requests the transmission of alarm information m, the telephone terminal 20 transmits (responds) n the alarm information, and the satellite terminal 10 confirms the alarm information. The satellite terminal 10 requests the transmission of the billing information o, the telephone terminal 20 transmits (responds) the billing information p, and the satellite terminal 10 confirms the billing information. Satellite terminal 10 requests transmission of cellular information e
Then, the telephone terminal 20 transmits (responds) f cellular information, and the satellite terminal 10 starts internal processing after confirming the cellular information. In the cellular area, it works as a digital mobile phone (cellular), starts communication (exchange) between the ground base station and the digital mobile phone, and operates in satellite mode if communication satellites can be seen outside the area Then, communication (exchange) starts between the satellite earth station and the satellite terminal.

[0011]

In the conventional satellite communication terminal apparatus shown in FIG. 3, each information (system information, individual information, etc.) necessary for a call exists in both the satellite terminal and the digital portable telephone terminal. In order to operate as a satellite communication terminal device, device authentication is performed to check what is connected to each other, and if the ID numbers of the satellite terminal and the digital mobile phone terminal do not match in order to limit users, There is a problem that cannot be used. In addition, since the digital cellular phone terminal and the satellite terminal manage communication history and billing information separately, there is a problem of double management. further,
The connection procedure of the devices is also complicated, and there is a problem that much time is spent on management of command execution time and setting of waiting time for answering, or management and development.

An object of the present invention is to provide a satellite communication terminal device in which a management procedure is simplified.

[0013]

SUMMARY OF THE INVENTION A satellite communication terminal device according to the present invention uses a dedicated cable to connect a satellite communication portable terminal and a terrestrial digital portable telephone terminal that operate based on system information and individual information stored therein. A connected satellite communication terminal device, wherein the system information stored in the satellite communication mobile terminal and the terrestrial digital mobile phone terminal is shared.

The operation of the present invention is as follows. The satellite terminal and the digital mobile phone terminal are connected by a dedicated cable, and various system information necessary for communication of the digital mobile phone terminal is transferred to a shared system information memory block in the satellite terminal. This eliminates the need for the satellite terminal to independently hold system information such as an ID number (management number of the device itself and a user's telephone number), security information, communication history management, alarm information, and billing information.

Therefore, since the satellite terminal does not have an ID number,
A satellite line can be used from any digital mobile phone terminal. Even if the satellite terminal has a device management number, regardless of the telephone call, the user of the digital mobile phone terminal can make a call using his own telephone number. In addition, the billing information is centrally managed from the digital mobile phone terminal, and is solved by performing roaming processing when the satellite line is another carrier.

Further, by inputting a personal identification number from the digital portable telephone terminal at the time of connection, unauthorized use can be prevented and a security problem can be solved. Furthermore, since the satellite terminal performs overall control of the satellite communication terminal device, management can be unified even if alarm information for the satellite section and the cellular section is separately stored. Furthermore, the number of necessary treatment items for connecting the satellite terminal and the digital mobile phone terminal can be reduced, so that the procedure can be simplified.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of a satellite communication terminal according to the present invention.
The same parts as in FIG. 4 are denoted by the same reference numerals. In FIG. 1, a satellite communication terminal device according to the present invention includes a satellite communication portable terminal 10, a terrestrial digital portable telephone terminal 20, a satellite communication portable terminal 10, and a terrestrial digital portable telephone terminal 2.
It is composed of a cable 7 for connecting 0. The satellite communication portable terminal 10 is a satellite communication antenna 1 for transmitting and receiving microwaves to and from a communication satellite (not shown), and a communication for transmitting and receiving to and from a public communication network (not shown) via the satellite communication antenna 1. It has a circuit 2.

A control circuit 3, which is a kind of computer for controlling the entire portable terminal 10 for satellite communication, a storage circuit 4 for storing shared system information 5 and individual information 6, etc., and a satellite communication via a direct communication circuit 2. It has a handset 9. Further, the terrestrial digital mobile phone terminal 20 includes an antenna 16 for performing wireless transmission and reception with a cellular terrestrial base station (not shown), and a communication circuit 11 for performing transmission and reception with a public communication network (not shown) via the antenna 16. Having.

Further, the system includes a control circuit 12, which is a kind of computer for controlling the whole terrestrial digital mobile phone terminal 20, and a storage circuit 13 for storing system information 14, individual information 15, and the like. In the initial state, the shared system information area 5 of the storage circuit 4 of the satellite terminal 10 is empty. (Digital portable) telephone terminal 20 has security information, ID number, communication history information, alarm information, billing information, registration position (area) management information, and the like as system information 14 therein.

Each of the satellite terminal 10 and the digital cellular phone terminal 20 has therein a country code, a (cellular) carrier code, and optional functions (echo canceller on / off, answering machine function, broadcast function) usable by the subscriber. Function information), device alarm information, device management number, and the like as individual information 6 and 15.

The operation of the embodiment of the present invention will be described. As shown in FIG. 1, in order to operate the satellite terminal 10 and the telephone terminal 20 as a satellite communication terminal device, the satellite terminal 10 is connected to the (digital portable) telephone terminal 20 by the dedicated cable 7. At this time, security information in the telephone terminal 20,
System information stored in the system information management memory block 14, such as ID number, call history information, alarm information, billing information, and registered position management information, is transferred to the shared system information area 5 in the storage circuit 4 of the satellite terminal 10. Then, it is handled as system information on the satellite terminal 10 side.

As shown in FIG. 2, after the power is turned on, the satellite terminal 10 issues a device connection authentication request a to the telephone terminal 20, and the telephone terminal 20 receives the device authentication signal request a.
Send (response) b your own device authentication number. Satellite terminal 1
0 accepts (confirms) the device authentication number b from the telephone terminal 20 and connects to the connectable satellite terminal 10 (digital portable).
It is determined whether the terminal is the telephone terminal 20 or not. If the authentication is obtained, a key input request is issued from the handset 9 of the satellite terminal 10 to determine whether the ID number of the telephone terminal 20 is valid. This ends the connection procedure.

The satellite terminal 10 requests the telephone terminal 20 to transmit system information c, the telephone terminal 20 receives the system information transmission request c, and stores the system information 14 in the storage circuit 13.
To the satellite terminal as a response d. The satellite terminal 10 receives the system information 14 and stores it in the shared system information storage area 5 of the storage circuit 4. The satellite terminal 10 requests transmission e of the cellular information, the telephone terminal 20 transmits (responds) f the cellular information, and the satellite terminal 10 starts the internal processing after confirming the cellular information.

After the satellite terminal 10 is connected to the satellite communication terminal device,
Judgment is possible from each other's alarm information,
If it can be used, the telephone terminal 20 transmits a cellular area (communicable) / out of area (communicable) signal and a reception level signal,
The terminal is always transmitted via the dedicated cable 7 and compared with the reception level of the satellite terminal 10 to determine whether the mode is the satellite mode or the cellular mode (which mode is appropriate). Communication is performed from the terminal 10.

If the cellular mode is appropriate, communication is performed from the telephone terminal 20, and every time communication is performed, the system information 5 of the memory block 4 in the satellite terminal 10 is updated, and the telephone terminal 20 is updated at regular intervals. Send the same content to
The system information 14 of the telephone terminal 20 is also updated so that both system information 5 and 14 are always the same.

As described above, the connection procedure of the satellite communication terminal device is simplified, the burden of software development during the development of the respective devices 10 and 20 is reduced, and there is an advantage that the development cost and the development period can be reduced. . In addition, during operation of the system, there is an advantage that a user (subscriber) of the digital mobile phone terminal 20 can connect to any terminal and use a satellite phone without occupying the satellite terminal 10.

[0027]

As described above, according to the present invention, in the satellite communication terminal device, the security information in the satellite terminal,
By sharing system information for maintaining communication functions such as D number, communication history information, alarm information, and billing information with the digital mobile phone terminal, the burden on hardware and software on the satellite terminal side is reduced, The effect is that any digital mobile phone terminal can be used by connecting to the satellite terminal.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a connection procedure according to an embodiment of the present invention.

FIG. 3 is a block diagram of an example of a conventional satellite communication terminal device.

FIG. 4 is an explanatory diagram of a connection procedure of an example of a conventional satellite communication terminal device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Satellite communication antenna 2, 11 Communication circuit 3, 12 Control circuit 4, 13 Storage circuit 5 Shared system information 6, 15 Individual information 7 Dedicated cable 9 Handset 10 Satellite communication mobile terminal 14 System information 20 Terrestrial digital mobile phone terminal

Claims (5)

[Claims] 1. A satellite communication terminal device comprising a satellite communication portable terminal and a terrestrial digital portable telephone terminal, which operate based on system information and individual information stored therein, connected by a dedicated cable. A satellite communication terminal device wherein the system information stored in a satellite communication portable terminal and a terrestrial digital portable telephone terminal are shared. 2. When the satellite communication mobile terminal and the terrestrial digital mobile phone terminal are connected by the dedicated cable, the system information stored in the terrestrial digital mobile phone terminal is transmitted to the satellite communication mobile terminal. 2. The satellite communication terminal device according to claim 1, wherein the data is transmitted to the terminal. 3. The satellite communication terminal device according to claim 1, wherein the system information is transferred between the satellite communication portable terminal and the terrestrial digital portable telephone terminal at regular intervals. 4. The satellite communication terminal according to claim 1, wherein said system information is security information, ID number, call history information, alarm information, billing information, and registered location management information. . 5. The apparatus according to claim 1, wherein the individual information is a country code, a carrier code, an echo canceler on / off function, an answering machine function, a broadcast function, device alarm information, a device management number, and the like. Item 5. The satellite communication terminal device according to any one of Items 1 to 4.