KR19980019353A - APPARATUS FOR AUTOMATICALLY CONTROLLING THE OUTPUT OF A TERMINAL FOR MOBILE COMMUNICATION AND METHOD THEREFOR - Google Patents

Abstract

Disclosed are an apparatus and a method for automatically adjusting an output of a mobile communication terminal for automatically adjusting an output power by measuring a sensitivity of a received signal in a mobile communication terminal. The apparatus for automatically adjusting the output of the mobile communication terminal may include a transceiver configured to receive a signal from an external antenna during a user's call, a receiver sensitivity detector configured to detect a sensitivity of a signal received from the transceiver, and a transmitter / receiver from the transceiver. A conversion means unit for receiving a signal and coding and decoding the same; and a transmission output when the reception sensitivity is lower than or equal to a preset reference value according to the application of the signal converted by the conversion means unit and the reception sensitivity signal detected by the reception sensitivity detection unit. A control unit for increasing the power and reducing the transmission output power when the reception sensitivity is above the set level, and an interface unit for enabling the signal controlled by the control unit and output it to the external device. Therefore, the mobile terminal can detect the sensitivity of the received signal and adjust the output power optimally, thereby achieving substantial power savings.

Description

Device and method for automatically adjusting output of mobile communication terminal.

The present invention relates to an apparatus and a method for automatically adjusting the output of a mobile communication terminal, the apparatus and method for automatically adjusting the output of a mobile communication terminal that can reduce power by measuring the sensitivity of the received signal in the mobile communication terminal to adjust the output power It is about.

In general, a mobile communication terminal uses a battery to supply power applied to the terminal, and thus a technology for reducing battery consumption is required.

However, the mobile communication terminal is configured to adjust the output power according to the data when the base station sends the transmission output data according to the distance relationship with the terminal, the terminal can detect the transmission distance directly to adjust the output power As a result, the effect of substantial power reduction is halved.

For example, the output control power amplifier disclosed in Korean Patent Laid-Open No. 96-36382 extracts a hold circuit and a control signal for extracting a signal distributed in a feedback path and generating a control signal for attenuating power of an input signal input to a main path. The system is applied to the main path through a feedback path to control the power of the input signal input to the main path.

The output control power amplifier, referring to Figure 1, a variable attenuator (1) for attenuating and outputting the power of the input signal, a power amplifier (2) for amplifying and outputting the signal, and the amplified signal to a plurality of outputs A power divider 3 to supply, an envelope detector 4 and 7 for envelope detection of the output signal, a temperature compensation circuit 6 for keeping the conversion gain of the envelope detector constant, and a filter for outputting a waveform shaped signal (8, 11), a reference voltage generating circuit 5 for generating a reference voltage, a hold circuit 10 for extracting the output signal of the filter, and a burst monitoring circuit 9 for controlling the hold circuit.

This configuration can shorten the burst signal rise time of the communication device that transmits the burst signal.

However, the output control power amplifier is configured to adjust the transmission output in accordance with the data when the transmission output data according to the distance relationship with the wireless communication terminal from the wireless communication base station, the terminal side detects the transmission distance directly Since the output is not adjustable, there is a problem that practically no power can be saved.

The present invention was created in order to solve the above problems, the communication terminal checks the sensitivity of the received signal, and outputs the optimum output power in response to the checked reception sensitivity to obtain the effect of substantial power increase An object of the present invention is to provide an apparatus and a method for automatically adjusting the output of a mobile communication terminal.

1 is a block diagram of a conventional output control power amplifier,

2 is a block diagram of an automatic output control device of a mobile communication terminal according to the present invention;

3 is a flowchart illustrating the present invention.

Explanation of symbols for the main parts of the drawings

10 ... Transmitter and Receiver

20 ... Codec

30.Control part

40.Interface part

50. Reception sensitivity detector

In accordance with one aspect of the present invention, an apparatus for automatically adjusting an output of a mobile communication terminal includes: a transceiver configured to receive a signal from an external antenna during a user call and transmit and receive the signal; A reception sensitivity detector for detecting a sensitivity of a received signal applied from the transceiver; A conversion means unit for receiving a transmission / reception signal from the transmission / reception unit and coding and decoding the signal; The output power is increased when the reception sensitivity is less than or equal to the preset reference value according to the application of the signal converted by the conversion means and the reception sensitivity signal detected by the reception sensitivity detection unit. A control unit controlling to reduce the output power; And an interface unit configured to enable the signal controlled by the controller and output it to an external device.

In addition, the automatic output control method of the mobile communication terminal of the present invention to achieve the above object, the step of detecting the sensitivity of the received signal in the terminal; Comparing and determining the sensitivity of the detected received signal with a preset reference value; And a control step of increasing the power of the transmission output when the sensitivity of the detected reception signal is less than or equal to the set reference value, and reducing the power of the transmission output when the sensitivity of the detected reception signal is greater than or equal to the set reference value.

According to the features of the present invention configured as described above, the apparatus and method for automatically adjusting the output of the mobile communication terminal according to the present invention, by immediately detecting the sensitivity of the received signal directly from the communication terminal to immediately adjust the output power and substantial power savings The effect can be obtained.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2, the apparatus for automatically adjusting output of a mobile communication terminal according to the present invention includes: a transceiver 10 for receiving a signal from an external antenna during a user's call and transmitting and receiving the signal; A reception sensitivity detection unit 50 for detecting the sensitivity of the reception signal applied from the transmission / reception unit 10; A conversion means unit (20) which receives a transmission / reception signal from the transmission / reception unit (10) and codes and decodes it; According to the application of the signal converted by the conversion means unit 20 and the reception sensitivity signal detected by the reception sensitivity detection unit 50, the transmission output power is increased when the reception sensitivity is less than or equal to the preset reference level and the reception sensitivity is increased. A control unit 30 which controls to reduce the output power when the setting level is higher than the set level; The interface unit 40 is configured to enable a signal controlled by the controller 30 and output the same to an external device.

In more detail, the transceiver 10 receives and transmits and receives a signal from an external antenna during a call, and the reception sensitivity detector 50 detects the sensitivity of the reception signal applied from the transceiver.

The coder (coder-decoder encoder and decoder) 20 receives a transmission / reception signal from the transceiver 10, assigns an address to a storage device (memory) built in the control unit in the encoder, and the storage device from the storage device in the decoder. By calling the address signal of the converted address to the analog form is applied to the control unit 30.

The encoder converts an analog signal into a digital signal and encodes the converted digital signal by using pulse data (ADPCM).

The above-described memory device (memory; not shown) stores variables such as a reception sensitivity setting level, and parameters for various operations, and such a memory device has an EPROM (Electrically Erasable and Programmable) capable of erasing or recording the contents of the memory. Read Only Memory) and ROM and RAM.

When the signal encoded and decoded by the codec 20 and the received sensitivity signal detected by the received sensitivity detector 50 are applied to the controller 30, the comparator of the controller 30 compares it with a preset reference value and receives the received sensitivity. If is less than or equal to the set level, the transmission output power is increased, and if the sensitivity is greater than or equal to the set level, it is controlled to reduce the output power.

When the signal controlled from the controller 30 is applied to the interface unit, the interface unit 40 enables the selection signal and outputs the read-write signal to the external device to output the output power of the communication terminal. Will be adjusted.

In addition, the method for automatically adjusting the output of the mobile communication terminal according to the present invention may include: detecting the sensitivity of the received signal at the terminal (step 100); Comparing and determining the sensitivity of the detected received signal with a preset reference value (step 102); Increasing the power of the transmission output when the sensitivity of the detected reception signal is equal to or less than the set reference value (step 104) and decreasing the power of the transmission output (step 106) when the sensitivity of the detected reception signal is greater than the set reference value; .

In more detail, when the reception sensitivity detection unit detects the reception sensitivity (step 100) and applies it to the control unit, the comparator of the control unit determines whether the reception sensitivity is lower than or equal to the set level (step 102).

The control unit increases the power of the transmission output (step 104) if the sensitivity of the detected reception signal is below the set level, and decreases the power of the transmission output (step 106) if the sensitivity of the detected reception signal is above the set level.

On the other hand, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the spirit of the present invention.

The apparatus and method for automatically adjusting the output of the mobile communication terminal according to the present invention can detect the sensitivity of the received signal directly at the communication terminal and optimally adjust the output power, thereby achieving immediate and substantial power savings.

Claims (2)

Transmitting and receiving unit for receiving and receiving a signal from an external antenna when a user calls, A reception sensitivity detector for detecting a sensitivity of the received signal applied from the transceiver; A conversion means unit for receiving a transmission / reception signal from the transmission / reception unit and coding and decoding the signal; The output power is increased when the reception sensitivity is less than or equal to the preset reference value according to the application of the signal converted by the conversion means and the reception sensitivity signal detected by the reception sensitivity detection unit. A control unit controlling to reduce the output power; And an interface unit configured to enable the signal controlled by the controller and output it to an external device at the same time. In the method for adjusting the output power by measuring the sensitivity of the received signal in the mobile communication terminal, Detecting the sensitivity of the received signal at the terminal; Comparing and determining the sensitivity of the detected received signal with a preset reference value; And a control step of increasing the power of the transmission output when the sensitivity of the detected reception signal is less than or equal to the set reference value, and reducing the power of the transmission output when the sensitivity of the detected reception signal is greater than or equal to the set reference value. Automatic control of output of communication terminal.