JPH0937335A - Mobile communication system - Google Patents

Abstract

(57) [Summary] [Structure] A plurality of radio base stations that control an aerial line in an arbitrary area, a mobile communication control station that controls the radio base stations, and mobile communication including one or more mobile communication devices. In the system, a storage device for storing the current position of any mobile communication device as voice or data, and a device for transmitting the voice or data in the storage device to a general telephone line at the request of the mobile communication device are provided. Accurately convey the information necessary for emergency calls. [Effect] To provide a mobile communication system that is effective in an emergency call.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system using radio waves, and more particularly to a mobile communication system capable of effectively making an emergency call.

[0002]

2. Description of the Related Art A conventional mobile communication system is, for example,
As described in Chapter 8 of "Basics of Mobile Communications" (supervised by Yoshihisa Okumura and Masaaki Shinshi) published by The Institute of Electronics, Information and Communication Engineers, the areas where mobile communication devices that make up the system are currently located The mobile communication control station grasps whether or not it exists in the form of location registration, and goes out of the area of the wireless base station in charge of the area where the mobile communication device currently exists, and moves to the area of any other wireless base station. Even when they moved, the communication line was supposed to be maintained.

[0003]

The mobile communication system of the above-mentioned prior art does not consider an emergency report, and it is difficult for the user of the mobile communication device to grasp the current position. If an emergency situation such as a traffic accident or sudden illness occurs, even if an emergency call is made to the relevant government agency using a mobile communication device, the information that identifies the point where the emergency situation occurred cannot be accurately or effectively transmitted. , There was a problem that the emergency vehicle could not be dispatched or the dispatch was delayed.

An object of the present invention is to provide a mobile communication system which can effectively report an emergency by a mobile communication device.

[0005]

Means for Solving the Problems The above-mentioned problems are as follows: a storage device for storing the current position of an arbitrary mobile communication device as voice or data; and a voice or data in the storage device at the request of the mobile communication device. This is achieved by providing a switching device for sending.

[0006]

In the storage device for storing the current position of any mobile communication device as voice or data, the mobile communication device is "1".
When an emergency call number such as "10" or "119" is transmitted, the current position of the mobile communication device that has made the emergency call is stored in the device as voice or data. Next, the switching device that sends voice or data in the storage device sends the voice or data stored in the storage device to the general telephone line or the advanced information communication line based on the request of the mobile communication device. To do. This makes it possible to accurately and effectively report an emergency in the mobile communication device.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

Here, FIG. 1 is a block diagram of a mobile communication system according to an embodiment of the present invention, FIG. 2 is an example of a configuration of an area in which a radio base station is in charge, and FIG. It is a flow chart of operation. In the figure, 1 is a mobile communication device, 2a, ..., 2n is a radio base station, 3 is a mobile communication control station, 4 is a multiplexing device, 5 is a voice processing device, and 6 is a base station control device. , 7 is a fax / data adapter, 8 is a storage device, 9 is a switching device, 10 is a control device, and 11 is a radio service area (cell).

The mobile communication control station 3 recognizes, based on the calling number of the mobile communication device 1 or the like, whether or not the currently calling telephone is an emergency call. When the call from the mobile communication device 1 is an emergency call, the mobile communication control station 3 identifies the current position of the mobile communication device 1 making the emergency call, and the position information is stored in the mobile communication control station 3. The storage device 8 stores and retains in the form of voice or data.

Here, the method for the mobile communication control station 3 to specify the current position of the mobile communication device 1 will be described in more detail.

The mobile communication device 1 includes radio base stations 2a, ...
The electric field strength of the radio wave transmitted from 2n is sequentially measured, and the measured value of the electric field strength of the radio wave propagated from each radio base station 2a, ..., 2n is notified to the mobile communication control station 3.

Generally, the electric field strength increases as the distance from the transmission point decreases, so that the mobile communication control station 3 determines the mobile communication device 1 and each radio base station 2a ...
The current position of the mobile communication device 1 (which radio base station is in the area in charge) can be specified by grasping the distance of 2n.

In other wireless position detection systems,
A method such as Loran C utilizing the difference in propagation time of radio waves is also generally known, and this method may be used in the system of the present invention.

Further, these radio base stations 2a, ..., 2
n is arranged with a radio coverage area (cell) 11 as shown in FIG. 2 in plan view, and covers a wide area.

The voice and data stored and held in the storage device 8 is sent from the mobile communication control station 3 from the mobile communication device 1 after receiving a voice and data transmission request signal from the mobile communication device 1. It is sent to the line or advanced information communication line. As a result, even when an emergency situation such as a traffic accident or a sudden illness occurs when the user himself / herself of the mobile communication device finds it difficult to grasp the current position, the mobile communication device 1 of the mobile communication device 1 is notified to the relevant government agency. The current position can be notified, and indirectly, the information specifying the point where the emergency has occurred can be accurately or effectively transmitted.

Here, the control device 10 sends a control command to the storage device 8 or the like to control the operation of each part.

On the other hand, for normal voice, unless a data transmission request signal is input from the mobile communication device 1, the voice is input to the voice processing device 5 via the multiplexing device 4 and to a general telephone line via the switching device 9. Or sent to the advanced information communication line.

When the receiving side is a data terminal such as a FAX, data can be delivered by transmitting the position information data via the fax / data adapter 7.

In another embodiment, means for sending ordinary voice and position information data to the advanced information line in a time division manner can be considered. In this case, the position information data can be sent together with the voice, so that the emergency call can be efficiently made.

If the position information data is like a map, it will be more efficient.

[0021]

According to the present invention, it is possible to provide a mobile communication system which is effective at the time of an emergency call.

[Brief description of drawings]

FIG. 1 is a block diagram of a mobile communication system that is an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a configuration example of an area in which a wireless base station is in charge.

FIG. 3 is a flowchart of a control operation according to an embodiment of the present invention.

[Explanation of symbols]

 1 ... Mobile communication device, 2a, ..., n ... Radio base station, 3 ... Mobile communication control station, 4 ... Multiplexing device, 5 ... Voice processing device, 6 ... Base station control device, 7 ... Fax data Adapter, 8 ... Storage device, 9 ... Exchange device.

Claims (2)

[Claims] 1. A mobile communication system comprising a plurality of radio base stations that control an aerial line in an arbitrary area, a mobile communication control station that controls the radio base stations, and one or a plurality of mobile communication devices. A storage device that stores the current position of any mobile communication device as voice or data, and sends the voice or data in the storage device to a general telephone line or an advanced information communication line at the request of the mobile communication device. A mobile communication system comprising an exchange device, the storage device, and a control device for controlling the exchange device. 2. The ordinary telephone line according to claim 1, wherein the normal voice and the stored position information data are alternated in a time division manner.
Or a mobile communication system for sending to an advanced information communication line.