JPS61128635A - Radio equipment - Google Patents

Abstract

PURPOSE:To transmit a busy signal quickly at a base station to a call from other subscribers by transmitting a power cut-off signal before a power supply of radio equipment of an automobile telephone set is cut off actually and storing the signal in a storage circuit of the base station. CONSTITUTION:Power is fed to a transmission section 4, a logical section 5 and a reception section 8 by a power supply section 2 and controlled by a switch SW1. The power cut-off signal transmitted from the SW1 is delayed by a delay section 9 to retard the actual power cut-off to the transmission section 4, the logical section 5 and the reception section 8. On the other hand, the power cut-off signal from the SW1 is fed to the logical section 5, where it is processed and the power supply cut-off information and the identification number of the radio equipment are modulated by a modulator 7 before the power to the transmission section 4, the logical section 5 and the receiver 8 is cut off and the result is transmitted to the base station from the transmission section 4 through a transmission/reception common use section 6. The power cut-off information and the identification number are stored in the storage circuit of the base station and when a talking is requested to the radio equipment from the other subscriber terminal devices, a busy signal is transmitted immediately to the other subscriber terminal devices.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a wireless device used in a mobile telephone terminal, and relates to a system for transmitting power cutoff information to a base station before the power is cut off.

(Prior Art) An example of the configuration of a wireless device used in a conventional car phone terminal is shown in FIG. 142. The wireless device shown in FIG. It consists of a control section for transmitting, a transmitting section 4, a logic section 5 for controlling the radio, a shared GII 6 for transmitting and receiving, a modulating section 7 for transmitting, and a receiving section 8.

The above-mentioned wireless device is used to communicate between other subscriber terminals connected to the base station and other wireless devices. Now, when calling a wireless device from another subscriber terminal connected to a base station, especially in a car telephone system called a cellular system, the base station uses a predetermined paging frequency (P channel) to call the wireless device that it wants to call. Send the identification number as data.

Next, the wireless device that recognizes the received identification number sends confirmation data back to the base station. The base station recognizes the identification number, connects the line, and begins a call between the wireless device and the other subscriber terminal. In the conventional system, when a wireless device is powered on, the wireless device's identification number is automatically sent to a base station for registration. However, information is not sent when the wireless device is powered off, and even if the wireless device is powered off and cannot receive radio waves from the base station, if the wireless device is called from another subscriber terminal. The base station is configured to transmit the identification number of the wireless device for a certain period of time on the paging frequency, and then send back a busy signal or a power-off message to other subscriber terminals.

(Problem to be solved by the invention) In this way, when the wireless device is not powered on, wasteful radio waves are emitted from the base station to the wireless device, resulting in limited channel usage efficiency. This has the disadvantage that the capacity of the exchange must be increased because it reduces the traffic volume of the exchange and increases the traffic volume of the exchange.

An object of the present invention is to eliminate the above-mentioned drawbacks by transmitting an identification number and power-off information to the base station before the power of the M2S is turned off when the main power switch is turned off. The base station recognizes that the wireless device with the identification number is powered off, and when the wireless device is called by another subscriber terminal, it immediately sends a busy signal or notifies the user that it is currently powered off. An object of the present invention is to provide a wireless device (tt) that adopts a power-off information transmission method configured to enable the transmission of power-off information.

(Means for Solving the Problems) An M2S wireless device according to the present invention includes a power supply section, a control section, a switch, a delay section, and a logic section, and includes a transmission section, a modulation section, and a reception section. By controlling the modulator, the modulator is configured to send a busy signal or a power cutoff signal to other subscriber terminals.

The power supply section is for supplying power to a load consisting of a transmitting section, a modulating section, and a passive section.

The control section is for intermediately controlling the power sent from the power supply section to the load.

, the switch is for sending an on/off control signal for the power supply section to the control section.

The delay section is for delaying the on/off control signal and providing it to the control section when the switch is turned off.

The logic section is for directly inputting the on/off control signal from the switch, detecting whether the switch is turned off before the control section, and notifying the modulation section that the power has been cut off using an identification signal. be.

(Example) Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a wireless device according to the present invention. In FIG. 1, the same elements as in FIG. 2 are given the same numbers, and 9 is a delay section. @1 In FIG. 1, power is supplied to a transmitting section 4, a logic section 5, and a receiving section 8 by a power supply section 2, and they are controlled via a switch 1.

A delay unit 9 is provided between the power supply control unit 6 and the power supply switch 1 to delay the power cut signal sent from the power supply switch 1, and to delay the power cutoff signal sent from the power supply switch 1, and to delay the power cutoff signal sent from the power supply switch 1. Delay actual power down. On the other hand, the circuit is configured such that a power cutoff signal from the power switch 1 is sent to the logic section 5.

Before the transmitting section 4, the logic section 5, and the receiving section 8 are powered off, the power-off signal from the switch 1 is processed by the logic section 5, and the identification number and power-off information of the wireless device are sent to the modulator. 7
Modulated by The modulated wave is transmitted from the transmitting section 4 to the transmitting/receiving common section 9
It is sent to the base through.

With the above circuit configuration, if a power-off signal is sent before the wireless device is actually powered off and stored in the memory circuit of the base station, other subscriber terminals can request the wireless device to make a call. In this case, a busy signal or power-off information can be sent back to other subscriber terminals without emitting radio waves using the paging frequency (P channel).

(Effects of the Invention) As described above, the present invention, when the main power switch is turned off, transmits the identification number and power cutoff information to the base station before the MSS power is turned off. This has the effect that it is possible to avoid wasteful use of P channels used in a cellular system, and by extension reduce the number of P channels, thereby achieving effective use of radio waves. It also has the effect of reducing the capacity of the connected exchange.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a wireless device according to the present invention. FIG. 2 is a block diagram illustrating an array of wireless devices according to the prior art. 1@C switch 2...power supply section 3...control section 4...transmission section 5...logic section 6...common section 7...modulator 8...reception section 9...・Delay part

Claims (1)

[Claims] a power supply section for supplying power to a load consisting of a transmission section, a modulation section, and a reception section; a control section for intermediately controlling the power sent from the power supply section to the load;
a switch for sending an on/off control signal of the power supply section to the control section; a delay section for delaying the on/off control signal and providing it to the control section when the switch is turned off; Directly inputting the on/off control signal from the switch, detecting that the switch is turned off before the control unit, and notifying the modulation unit that the power is turned off by an identification signal. 1. An MSS wireless device, comprising: a logic section, and configured such that the modulation section can send a busy signal or a power cutoff signal to other subscriber terminals.