JP2000341752A - Portable telephone system, portable telephone terminal and calling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone system capable of judging whether talking with an incoming call to a portable telephone terminal in moving at a high speed is to be executed or not without interrupting traffic safety. SOLUTION: When a portable telephone system recognizes a call from a general telephone subscriber LT to a portable telephone terminal MS, a network side remotely judges whether a portable telephone terminal is being moved at a high speed or not. When the telephone terminal is in moving at a high speed, a call receiver may frequently take much time for responding to the call, so that the network side informs the general telephone subscriber that the portable telephone terminal is in moving at a high speed and transmits the incoming call to the call receiver. Since the call receiver transmits call receiver judging information whether the call connection of the portable telephone terminal is to be continued or not, the network side executes processing corresponding to the call receiver judging information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone system suitable for use when a caller is moving at high speed, and particularly to a case where traffic safety is given priority such as when driving a vehicle, and a public transportation system. The present invention relates to an improvement for distinguishing between a case where a person taking a call while taking an engine does not hinder traffic safety.

[0002]

[Prior Art] As of the end of February 1999, about 3% of Japan's total population
About 40 million units are registered in Japan as mobile phone subscribers. Therefore, in response to the explosive increase in the number of subscribers in recent years, the number of accidents in vehicles while using mobile phone terminals is also increasing. In particular, the most common cause is that when you receive a call while driving a car, you are operating at a certain speed, but respond to the incoming call, so do the operation for that It is caused by the fact that the driver turns his / her eyes off and drives the vehicle.

In order to prevent such an accident from occurring,
For example, as disclosed in Japanese Patent Application Laid-Open No. Hei 10-336841, the driver is switched to the automatic incoming call answering mode, or the driver decides whether to enter the hands-free mode or not before getting on the vehicle. It has a system to prevent traffic accidents. The hands-free mode is configured to operate in conjunction with the voice recognition mode, for example.

[0004]

However, since most mobile telephone terminals used in vehicles are popular products that do not have a hands-free mode, the safety of the mobile telephone terminals having a hands-free mode cannot be discussed. There is a problem that only a minority can benefit. In addition, since the consciousness of the individual for the safe driving is low, the driver still tends to continue the communication by the mobile phone terminal regardless of the moving speed of the vehicle.

The present invention solves the above-mentioned problems, and
It is an object of the present invention to provide a mobile phone system for determining whether or not to make a call in response to an incoming call to a mobile phone terminal that is moving at high speed without impairing traffic safety.

[0006]

According to the present invention, there is provided a portable telephone system for recognizing a call from a general telephone subscriber LT to a portable telephone terminal MS, and a mobile telephone terminal having a high moving speed. Means for judging whether the movement corresponds to the movement, and when the judgment means judges that the movement is a high-speed movement, it informs that there is an incoming call, and the mobile phone terminal is moving to the general telephone subscriber during the high-speed movement. Means for notifying that a call has been made, means for receiving callee determination information as to whether or not to continue call connection from the mobile phone terminal, and the mobile phone terminal Means for notifying the general telephone subscriber when the mobile phone is moving at high speed.

[0007] In the device configured as described above, upon recognizing a call from the general telephone subscriber LT to the mobile phone terminal MS, for example, the network side performs LCR measurement on the mobile phone terminal, and the mobile phone terminal operates at high speed. It is remotely determined whether or not the user is moving. When the mobile phone terminal is moving at high speed, it often takes time for the called party to respond. Therefore, the network side issues a call to the general telephone subscriber when the mobile phone terminal is moving at high speed. Notify that there is, and inform the called party that there is an incoming call.
Since the called party transmits the called party determination information as to whether or not to continue the call connection of the mobile phone terminal, the network responds according to the called party determination information.

Here, the notification when the mobile phone terminal is moving at a high speed may be a notification that the call is to be made again or a notification that the call cannot be answered. Further, the mobile phone terminal has means for receiving mounting information as to whether or not the mobile phone terminal is mounted on the hands-free kit, and when the mobile phone terminal indicates the hands-free kit not mounted state in the mounting information, If the mobile phone system according to any one of the first to third aspects is used to make a call, the mobile phone terminal equipped with the hands-free kit can be well handled.
Further, the mobile phone system has a message storage device for recording a message from the general telephone subscriber when the called party determination information is an indication that the call connection to the general telephone subscriber is not continued. With this configuration, the called party can listen to the message recorded in the message storage device using the mobile phone terminal when the message can be heard.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration block diagram illustrating an embodiment of the present invention. In the figure, a mobile switching center MSC (Mobile-services Sw
The switching center performs call connection control and service control in order to provide a mobile communication service.
The home location register HLR guarantees the mobility of the subscriber and the mobile phone terminal MS, and manages the subscriber information and the mobile phone terminal information necessary for providing the service to the subscriber. The external message storage device MC is an external device that stores and manages voice messages from the mobile phone terminal MS.
The base station controller / wireless transmission / reception base station BS
Channel switching control / control for the mobile phone terminal MS. Mobile phone terminal MS (Mobile Status)
n) means PDC, CDM, as well as mobile phone terminals
A, including general-purpose mobile phone terminals such as TDMA. The general telephone subscriber LT includes other mobile telephone terminals in addition to fixed telephones.

Next, the operation of the above-configured device will be described. FIG. 2 is an explanatory diagram of an operation of checking whether or not the mobile phone terminal is in a hands-free state. First, the mobile phone terminal M
If S is not attached to the hands-free set, the attachment information is not transmitted (FIG. 2). When the mobile phone terminal MS is attached to the hands-free set, the mobile phone terminal MS is notified to the network that it has entered the hands-free state (FIG. 2).
). When the mobile phone terminal MS has left the hands-free set, it notifies the network that it has been released from the hands-free state (FIG. 2).

In this manner, the mobile phone terminal MS has the mounting information indicating whether or not the mobile phone terminal MS is mounted on the hands-free set.
Notified to the network using the control channel.
This mounting information is transmitted to the base station controller / wireless transmission / reception base station B.
From S, the information is stored in the home location register HLR in the same manner as the registration information via the mobile switching center MSC (FIG. 2 (4)). Therefore, in the base station controller / wireless transmission / reception base station BS and the mobile communication switching center MSC constituting the network, it is possible to distinguish the mobile phone terminal MS mounted on the hands-free kit from the mobile phone terminal MS not mounted. it can.

Next, a call connection process for the portable telephone terminal MS when a call is actually made in the state of FIGS. 2 and 2 will be described. FIG. 3 is an explanatory diagram of incoming call regulation when the portable telephone terminal is not equipped with hands-free.
When the general telephone subscriber LT makes a call to the mobile telephone terminal MS that is moving (FIG. 3 (5)), the mobile communication switching center MSC sends the home location register HLR the mounting information of the mobile telephone terminal MS (FIG. 3 (5)). (Fig. 2 or Fig. 2)
(FIG. 3 (6)). The home location register HLR that has received the inquiry returns the mounting information of the mobile phone terminal MS to the mobile communication switching center MSC (FIG. 3 (7)). Thereafter, in the hands-free state (FIG. 2), a normal call connection sequence is performed.

On the other hand, when the hand is not in the hands-free state (FIG. 2)
) Indicates that the mobile switching center MSC sends an LCR (Level Crossing Rat) to the base station controller / radio transmission / reception base station BS.
The measurement of e) is requested (FIG. 3 (8)). Where LCR
Means the number of instantaneous value fluctuations (fading) caused by the movement of the mobile terminal or the multipath. FIG. 4 is an explanatory diagram of the LCR measurement method, in which the vertical axis represents the radio field intensity of the mobile phone terminal MS, and the horizontal axis represents time. LCR is a measured value of the number of times that the radio wave intensity of the mobile phone terminal MS crosses the measurement threshold value within the measurement time T. FIG. 5 is a correlation diagram between the moving speed of the mobile phone terminal and the LCR. Although there is some variation between the number of times of the instantaneous value change and the speed, the LCR tends to increase as the moving speed of the mobile phone terminal MS increases.

Returning to FIG. 3, the description will be continued. The base station controller / radio transmission / reception base station BS receiving the LCR measurement request from the mobile switching center MSC reports the result to the mobile switching center MSC (FIGS. 3 (9), (10), (1)).
1)). If the number of LCRs exceeds a certain measurement threshold (for example, 20 times or more within the measurement time = 100 ms), first, the mobile switching center MSC sends the general telephone subscriber L
For T, the mobile phone terminal MS is moving at a high speed, and an audio notification is issued so as to wait for a predetermined time (for example, 30 seconds) (FIG. 3 (12)). At the same time, a special notification (such as a special sound) during high-speed movement is played to the mobile phone terminal MS via the base station controller / wireless transmission / reception base station BS to notify that there is an incoming call (FIG. 3 (13) ), (14)).

Upon receiving the special notification, the mobile telephone terminal MS determines whether or not to continue the call connection by itself, determines whether or not to respond within a predetermined time (for example, 20 seconds), and responds. If no response is received, the information is transmitted to the mobile switching center MSC via the base station controller / radio transmission / reception base station BS (FIGS. 3 (15) and (16)). Upon receiving the information, the mobile communication switching center MSC sends the general telephone subscriber L
To T, a command to execute a call connection is issued, a notification that the call is to be made later than that of the called party, or a notification that the mobile phone terminal MS cannot respond because it is moving at high speed is sent. At the same time, if there is a message, the message is accepted and an instruction to write a message to the external message storage device MC is issued (FIG.
7)). The general telephone subscriber LT that has received the instruction to write a message to the external message storage device MC writes a message to the external message storage device MC if necessary.
(FIGS. 3 (18) and (19)). On the other hand, the mobile phone terminal MS
Can later confirm the message registered in the external message storage device MC (FIG. 3 (20), (2)
1), (22)).

In the above embodiment, the existing equipment such as the base station controller / radio transmission / reception base station BS, mobile communication switching center MSC, home location register HLR, etc.
Although the functions of transmitting and receiving measurement, notification to general telephone subscribers, and transmission / reception of callee determination information of the mobile phone terminal have been described,
The present invention is not limited to this, LCR measurement,
The function of notifying general telephone subscribers and transmitting / receiving called party judgment information of the mobile phone terminal may be built entirely with a system dedicated to the mobile phone terminal, or may be partially built with a dedicated system and the rest installed It is good also as a structure made to share to the apparatus of this.

[0017]

As described above, according to the portable telephone system of the present invention, means for judging whether the moving speed of a portable telephone terminal receiving a call corresponds to high-speed movement, and high-speed moving by the judging means. When it is determined that there is an incoming call, it is configured to transmit the call, so it is possible to determine whether or not to make a call connection according to the will of the called party, and the driver uses the mobile phone terminal in the car while driving the car Therefore, there is an effect that an accident caused by the above can be avoided in advance. Also, it is possible to continue the call connection without causing the called party to feel inconvenience even while using other transportation means such as a train or the like except for the driver in the car.

According to the portable telephone system of the present invention, if the called party does not respond to the call received while driving, the call is stored in the message storage device at any time. The driver can check during a break or after driving, and the caller is notified that the vehicle is moving at high speed, so that there is an advantage that the driver can keep safe driving.

[Brief description of the drawings]

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

FIG. 2 is an explanatory diagram of an operation for confirming whether or not a mobile phone terminal is in a hands-free state.

FIG. 3 is an explanatory diagram of incoming call regulation when a portable telephone terminal is not attached to a hands-free device.

FIG. 4 is an explanatory diagram of an LCR measurement method.

FIG. 5 is a correlation diagram between a moving speed of a mobile phone terminal and LCR.

[Explanation of symbols]

 BS base station controller / radio transceiver base station HLR home location register LT general telephone subscriber MC external message storage device MS mobile phone terminal MSC mobile communication switching center

Claims (7)

[Claims] 1. A means for recognizing a call from a general telephone subscriber (LT) to a mobile telephone terminal (MS), a means for determining whether or not the moving speed of the mobile telephone terminal corresponds to a high-speed movement, Means for notifying that there is an incoming call, and notifying the general telephone subscriber that the mobile phone terminal is making a call during high-speed movement; Means for receiving callee determination information as to whether or not to continue the call connection from the telephone terminal; and, in accordance with the callee determination information, a notification when the mobile phone terminal is moving at high speed, and the general telephone subscription. A mobile phone system comprising: 2. A method for determining whether the moving speed of the mobile phone terminal corresponds to a high-speed movement is performed by using an LCR for the mobile phone terminal.
The mobile phone system according to claim 1, wherein the measurement is performed, and the LCR measurement value is compared with a predetermined threshold value. 3. The notification according to claim 1, wherein the notification when the mobile phone terminal is moving at a high speed is a notification that a call is to be made again or a notification that a response cannot be made. Mobile phone system. 4. A means for receiving mounting information indicating whether or not the mobile phone terminal is mounted on the hands-free kit, wherein the mounting information indicates that the mobile phone terminal is not mounted on the hands-free kit. A mobile phone system, wherein a call is made by the system according to any one of claims 1 to 3. 5. The message storage for recording a message from the general telephone subscriber when the called party determination information is an indication of intention not to continue the call connection to the general telephone subscriber. The mobile phone system according to any one of claims 1 to 4, further comprising a device. 6. A process of recognizing a call from a general telephone subscriber (LT) to a mobile phone terminal (MS), a process of determining whether a moving speed of the mobile phone terminal corresponds to a high-speed movement, and the determining process. When it is determined that the mobile phone is moving at high speed, a step of notifying that there is an incoming call and notifying the general telephone subscriber that the mobile phone terminal is making a call while moving at high speed; Transmitting to the mobile switching center (MSC) information on whether or not to continue the call connection from the terminal; Sending a notification to the general telephone subscriber when the mobile phone is moving. 7. The step of judging whether the moving speed of the mobile phone terminal corresponds to a high-speed movement is performed by comparing the LCR measurement value of the mobile phone terminal with a predetermined threshold value. The method according to claim 6, further comprising the step of: