JPS58209239A - Mobile body communicating method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to a method for making mobile calls in car telephones/stem etc.

In recent years, car phone systems have been put into practical use and N1 mobile communication services are becoming more widespread.

FIG. 1 is a diagram showing the configuration of a car telephone system. In the current car telephone system, even if the terminal device installed in the mobile object 5 is in a "dead" state due to a power cut, for example, when the terminal device of the mobile object 5 is called from the in-home telephone 1, the telephone 11@! 2. Connected to the wireless conversion station 4 via the telephone exchange 3, the wireless exchange 4 calls the terminal device of the mobile unit 5 all at once in a wireless area, and ends up calling the home phone 1 with no response. It is responding with a sound etc. that it cannot connect.

Therefore, in such a case, invalid radio waves are emitted using a limited number of radio frequencies. However, when @ makes a call to the terminal device of the mobile unit 5, it is found that the connection cannot be made after waiting for the above-mentioned unrelated call and the reception of the response signal, which is not desirable in terms of service. have.

The invention eliminates the above-mentioned drawbacks, and when the mobile terminal device is powered off, there is no I@! Another object of the present invention is to provide a mobile communication method in which a switching station promptly responds to the effect that connection cannot be established without emitting a call-out signal.

The uninvented mobile communication method transmits a raw power signal or a power source signal together with a mobile station number from the terminal device to the wireless switching center when the power is turned on and off, and the wireless switching center transmits each power source signal to the wireless switching center. The alive/dead status of each terminal device is registered, and when the mobile terminal device is called from another party, the non-M/C switching station checks the alive/dead status of the terminal device, and if it is alive, it connects normally. When the terminal device is in the original state, it is notified by voice or busy tone that the terminal device is not powered on, and no further conversion processing is performed.

The invention will now be described in more detail with reference to embodiments shown in the accompanying drawings.

FIG. 2 is a block diagram of a mobile terminal device that implements the uninvented method t, FIG. 3 is a block diagram of a wireless switching center that implements the uninvented method f, and FIG. 3 is a block diagram showing an example of a power supply circuit 16 used in the terminal device shown in FIG. 2. FIG.

In FIG. 2, when the power switch 12 of the telephone unit 11 of the mobile body is turned on, a power on signal ONS is sent to the power supply circuit 1.
3 is input to the control circuit 15. In response to this power-on signal ONS, the power supply circuit 16 stabilizes the power supply PS output from the mobile battery 14, and after 17'C, outputs it to each part as a power supply Pw.

When the power PW is supplied, the control circuit 15 composed of a microcomputer or the like confirms the power on signal ONS and forms a raw power signal, which is transmitted along with the mobile station number from the data transmitting/receiving block 16 as shown in FIG. No M5! : Send to exchange 4. The wireless switching center 4 receives the power supply raw signal with the data transmitter/receiver 17 shown in FIG. 3, and stores it in the "raw" state ai in the fault area of the memory 19 corresponding to the station transfer number by the action of the conversion control circuit 18. Thereafter, the data transceiver 17 sends a response signal to the mobile terminal device. The mobile terminal device receives the above response signal with the data transmitter/receiver 16, outputs the power hold signal KPW from the control circuit 15, and notifies the subscriber with a tone or rung display, and from this point on, the telephone operates normally. The operation is performed. FIG. 5(a) is a flowchart showing an outline of the above operation.

Next, the detailed operation of the power supply circuit 13 will be explained using FIG. 4. Turn on the power on signal from the power switch 12
When S is output n, OR@M 131 is activated and input to the relay drive circuit 132. This causes relay 136
is turned on, and the power supply PS output from the terminal 14 of the mobile body is stabilized by the stabilization circuit 154 and then output as power PW to each part. When there is a response signal indicating that the "raw" state has been memorized and the power hold signal KPw is output from the control circuit 15, the power hold signal KPW is sent to the relay drive circuit 132 via the OR circuit 131 as shown in FIG. Keep typing.

When the power switch 12 is turned off, the power on signal ONS disappears in FIG. 2. However, when the power holding signal KPW output from the control circuit 15 is input, the power supply circuit 132 (see FIG. 4) in the power supply circuit 13 continues to drive the relay 136. Let's do it. Therefore, the power supply circuit 13 continues to supply l1ls Kt power w.

- 10,000, In FIG.
It is detected that the NS has disappeared, and as a result, the power source signal is sent from the data transmitter/receiver 16 to the wireless switching center 4 together with the mobile station number. The wireless switching center 4 receives this power source signal through the data transmitter/receiver a17, stores the "dead" state in the corresponding area of the memory 8 by the function of the switching control circuit 18, and then outputs a response signal from the data transmitter/receiver 17. nru. The terminal device of the mobile body receives this response signal at the data transmitting/receiving block 16, which causes the control circuit 15 to output the power hold signal KPW.
Stop outputting. As a result, the relay drive circuit 132 in the power supply circuit 13 is no longer driven, and the relay 133 is turned off. Therefore, the supply of power pw is subsequently stopped, and all circuits stop functioning.

However, it is assumed that the OR circuit 161 and the relay drive circuit 162 in the power supply circuit 13 are driven by power from a different system from the power supply PS of the mobile battery 17 in order to maintain their originality. FIG. 5 (bl) is a flowchart showing an outline of the above operation.

If a call is made to the mobile terminal device from another home telephone 1 when the terminal device of the mobile body has stopped functioning due to the power being turned off, the wireless switching center 4 refers to the memory of the mobile station number and indicates that it is dead. ” Check the status. This makes it possible to send a busy tone or the like to the home telephone 1 to notify that the connection cannot be made, without calling the terminal device of the mobile body by radio. Therefore, unnecessary radio waves are not emitted and traffic is reduced. FIG. 6 is a flowchart showing the connection operation of the wireless switching center in this embodiment.

In mobile communication systems, mobile stations are controlled by microconverters, and non-N/N switching stations are controlled by electronic exchanges, so the above-mentioned functions can be easily implemented by software.

As is clear from the above description, according to the present invention, power is supplied to the power supply circuit of a mobile terminal device through a separate system, and when the power of the terminal device is turned on and off, ” status to the wireless switching center, and does not call wirelessly to mobile terminal devices that are not powered on and are in a “dead” state (stopped functioning), allowing for more efficient traffic. This has the effect that the service can be taken as described above.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the configuration of a car telephone system, Fig. 2 is a block diagram showing an example of a mobile terminal device implementing the uninvented mobile communication method, and Fig. 3 is the uninvented mobile communication method. A block diagram showing an example of a wireless switching center that implemented the 4th
5(a) is a block diagram showing the details of the power supply circuit in the terminal device of the mobile body shown in FIG. 2, FIG.
b) is a flowchart showing processing charges when power is cut off for a mobile terminal device, and FIG. 6 is a flowchart showing connection processing at a wireless switching center. 4... Wireless switching center, 5... Mobile body, 12... Power switch, 13... Power supply circuit, 14... Mobile battery, 15... Control circuit, 16.17... Data transmitter/receiver, 18... Father exchange control circuit, 19... Memo Ic 132... Relay drive circuit, 136... Relay,
134... Stability circuit. Ku / Prisoner 2 Illustration 3 Illustration 4r: A group) (shi)

Claims (1)

[Claims] When a mobile terminal device is powered on or disconnected, the terminal device transmits a power raw signal or a power source signal together with the mobile station number to the wireless switching center, and the wireless conversion station registers the alive or dead status of each terminal device. However, when a call is received from another device to a mobile terminal device, the radio switching center refers to the raw/original state of the terminal device, and if it is in the raw state, normal connection processing is performed, and if it is in the original state, the corresponding A mobile communication method characterized by notifying by voice or busy tone that the terminal device is not powered on, and not performing subsequent switching processing.