JPH04150627A - Telephone set for mobile communication - Google Patents

Abstract

PURPOSE:To allow the user to predict its own equipment to be at the outside of a radio zone and line interruption to be caused by providing a reception level monitor means in the telephone set and informing it to a notice means when the reception state is deteriorated. CONSTITUTION:When an incoming call comes or a dialing is made, a reception level monitor means 4 starts monitoring a level of a received radio wave. When the reception level reaches a setting level or below and a signal processing section 5 of the reception level monitor means 4 discriminates the reception state to be defective, a notice command is outputted and a notice means 6 informs it by an oscillation sound and a blink light. Thus, the user predicts it that its own equipment is at the outside of a radio zone and its channel is interrupted and countermeasures is enabled in advance.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to mobile communication telephones such as mobile telephones and car telephones.

[Conventional technology]

In recent years, wireless communication telephones that receive mobile communication services, such as car phones and mobile phones carried by people, have been widely used.

[Problem to be solved by the invention]

When using such a mobile communication phone and approaching the border of a wireless zone where radio waves can reach from a base station, the average level of the received waves will drop, the voice of the call will gradually become quieter, and the line will be disconnected. There is a thing. Particularly in the case of car telephones, because the speed of movement is fast, the line is likely to be disconnected during a call. When the line is disconnected in this way, it is necessary to dial again, and it takes time to resume the call.

The wireless sheet 7 is set so that there is no gap between adjacent sheets, and even if you move to the next wireless sheet, you can continue the call by switching channels according to the switching guidance signal sent from the base station. can.

However, depending on the terrain and service availability, there may be gaps in the wireless zone, and as mentioned above, the line may be unexpectedly disconnected during a call.

An object of the present invention is to provide a mobile communication telephone that can predict disconnection of a line.

[Means to solve the problem]

The structure of this invention will be explained with reference to FIG. 1 corresponding to an embodiment.

The present invention provides a mobile communication telephone equipped with a wireless communication unit (1), a reception level monitoring means (4) for monitoring the level of received radio waves, and a response to a result of monitoring poor reception status of this means (4''). The system is equipped with a notification means (6) that operates in accordance with the above-mentioned conditions.

[For production]

The reception level monitoring means (4) constantly monitors the level of received radio waves during a call, and outputs a monitoring result of poor reception when a predetermined state is reached, such as when the reception level falls below a set value. The notification means (6) provides notification in response to this monitoring result.

〔Example〕

An embodiment of the present invention will be described based on FIGS. 1 and 2.

This mobile communication telephone is applied to a car phone or a mobile phone, and includes a wireless communication section 1 and a telephone function section 2. This basic configuration includes reception level monitoring means 4 that monitors received radio waves, and notification means 6 that operates in response to the monitoring results.

The wireless communication unit 1 has a normal configuration, and includes a transmitting/receiving duplexer 8 connected to an antenna 7, a receiving unit 3, a transmitting unit 9, a frequency synthesizer 10, and a control unit 11.

The control unit II sends and receives all control signals to and from the control device on the base station side, and issues operational commands such as transmission, on/off, and channel switching.

The telephone function section 2 includes a handset I2 and an earl function means 13.
, a transmitter 14, and the like.

The reception level monitoring means 4 monitors the average level of the received radio waves, that is, the electric field strength of the radio waves received by the receiving section 3, and outputs a monitoring result indicating poor reception when the level falls below a set level. The reception level monitoring means 4 has a signal processing section 5, and performs a predetermined determination to be described later and outputs the above-mentioned poor reception condition.

The notification means 6 includes means for causing a speaker to generate an oscillating sound and means for causing a light emitting diode to blink. The speaker and the light emitting diode may also be used for notifying an incoming call.

The operation of the above configuration will be explained. FIG. 2 shows the operation of the reception level monitoring means 4. When an incoming or outgoing call is made (Sl
), the reception level monitoring means 4 starts monitoring the level of the received radio waves (S2).

When the reception level falls below the set level and the signal processing section 5 of the reception level monitoring means 4 determines that the reception condition is poor, a notification command is output (S3), and the notification means 6 issues a notification using an oscillating sound and a flashing light. It will be done.

With this notification, the user may be out of the wireless zone and the line may be disconnected, or the user may be unable to receive the radio waves and be unable to make a call!
It is possible to predict the situation and take measures in advance. For example, it is possible to change the content of the conversation by notifying the person on the other end of the conversation, or to stop moving or change the route of travel, so that the conversation can be continued.

The signal processing unit 5 outputs a signal indicating that the reception status is poor when the reception level falls below a set value, but in this case various judgments are made to avoid unnecessary notification. For example, the signal processing unit 5 is provided with an instantaneous fluctuation determination means (not shown), and only when a condition below a set failure continues for a predetermined period of time, it is determined that the reception condition is poor. As a result, no notification is given in the case of instantaneous level fluctuations due to movement over a short distance, and it is possible to avoid confusing the user due to erroneous notification.

The present invention can also be applied to a mobile communication telephone equipped with a facsimile function, and can also be applied to a mobile phone for premises use, a so-called cordless reprint, and the like.

〔Effect of the invention〕

The mobile communication telephone of the present invention is provided with a reception level monitoring means and causes the notification means to notify when the reception condition becomes poor, so that the user can predict that the user will be out of the wireless zone and the line will be disconnected. Therefore, it is possible to take measures before the line is disconnected, which makes it convenient to use.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
FIG. 2 is a flow chart of the operation of the reception level monitoring means. DESCRIPTION OF SYMBOLS 1... Wireless communication section, 2... Telephone function section, 3... Receiving section, 4... Reception level monitoring means, 5... Signal processing section, 6... Notification means FIG.

Claims (1)

[Claims] A mobile communication telephone equipped with a wireless transmitter/receiver section, characterized in that it is provided with a reception level monitoring means for monitoring the level of received radio waves, and a notification means that is activated in response to a result of monitoring poor reception status by this means. mobile communication telephone.