KR20020055245A - Device for detecting power in bts system - Google Patents

Abstract

PURPOSE: A power measuring apparatus in a base station is provided to monitor the power of each unit in the base station at real time. CONSTITUTION: A digital circuit unit(10) receives a digital signal, simultaneously converts the digital signal into an analog signal and thereafter outputs the converted signal to a transceiver(20). The transceiver(20) converts the analog signal from the digital circuit(10) into an RF signal as a transmission frequency and outputs the converted signal to a linear power amplifier(30). The amplifier(30) amplifies the RF signal linearly and outputs the amplified signal to an FEU(Front End Unit)(40). The FEU(40) filters finally the RF signal from the linear power amplifier(30) and outputs the filtered signal through an antenna. A plurality of couplers(100) are mounted to a cable among the digital circuit unit(10), transceiver(20), linear power amplifier(30) and FEU(40), respectively, and performs a coupling of power of each unit and thereafter outputs to the power detecting circuit unit(200).

Description

DEVICE FOR DETECTING POWER IN BTS SYSTEM

The present invention relates to an apparatus for measuring power in a base station system, and more particularly, to couple power for each unit by using a plurality of couplers when measuring power in a base station system (CDMA). The present invention relates to a power measurement apparatus in a base station system that enables real-time monitoring of power of each unit in a base station through a power detection circuit unit and a base station test unit after ringing.

In the conventional base station system, the power measurement apparatus uses a method of measuring power at a final output stage of a base station or measuring power at a transceiver output stage. Thus, when the final output power is not output from an unmanned base station, the base station operator directly operates the base station. By measuring the output power of each unit in the base station by using the test equipment, it was possible to check each unit in the base station where an error occurred. In this case, there was a problem in that the call service of the base station was interrupted for a considerable time because the location where the problem occurred could not be immediately detected and repaired.

Accordingly, the present invention has been made to solve the conventional problems as described above, and an object of the present invention is to enable real-time monitoring of the power of each unit in the base station, through a quick repair in the event of an abnormal power in each unit in the base station The present invention provides a power measurement apparatus in a base station system to prevent interruption of call services to provide users with higher quality communication services.

In order to achieve the above object, the power measuring apparatus in the base station system of the present invention, in the base station system consisting of a digital circuit, a transceiver, a linear power amplifier, and a FEU,

A plurality of couplers mounted between the digital circuit unit, the transceiver, the linear power amplifier, and the FEU, respectively, for outputting a cuff of the power of each unit;

A power detection circuit unit which receives the coupled power from the plurality of couplers, converts the power into a voltage, and simultaneously converts the voltage into a digital signal of an appropriate bit and then outputs the converted voltage;

A base station test unit which receives a digital signal from the power detection circuit unit and checks and outputs a voltage standing wave ratio (VSWR) of the digital signal; And

And a central situation room configured to receive a digital signal from the base station test unit and display the digital signal so that an operator can check the digital signal.

1 is a functional block diagram showing the configuration of a power measurement apparatus in a base station system according to an embodiment of the present invention;

2 is a functional block diagram showing in detail the configuration of the power detection circuit unit of the power measurement apparatus in the base station system according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: coupler 200: power detection circuit

201: power detector 202: processor

203: HDLC communication processor 300: base station test unit

400: Central Situation Room

Hereinafter, a power measurement apparatus in a base station system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a functional block diagram of a power measurement apparatus in a base station system according to an embodiment of the present invention, the power measurement apparatus in a base station system according to an embodiment of the present invention is a digital circuit unit 10, a transceiver (Transceiver) 20, a linear power amplifier 30, a Front End Unit (FEU) 40, a plurality of couplers 100, a power detection circuitry 200, a base station It consists of a test part 300 and the central situation room 400.

In addition, as shown in FIG. 2, the power detection circuit unit 200 may include a power detection unit 201, a processor 202, and a high level data link control (HDLC) communication processor 203. Consists of.

The digital circuit unit 10 receives a digital signal and simultaneously converts the digital signal into an analog signal and outputs the digital signal to the transceiver 20.

Meanwhile, the transceiver 20 receives an analog signal from the digital circuit unit 10 and converts the analog signal into an RF signal of a transmission frequency and outputs the analog signal to the linear power amplifier 30.

The linear power amplifier 30 receives an RF signal from the transceiver 20 and simultaneously outputs the RF signal to the FEU 40 after linearly high power amplifying the RF signal.

On the other hand, the FEU 40 receives the RF signal amplified to a high output from the linear power amplifier 30 and at the same time performs the final filtering of the RF signal and outputs through the antenna.

The plurality of couplers 100 are respectively mounted on cables between the digital circuit unit 10, the transceiver 20, the linear power amplifier 30, and the FEU 40, and then cuff the power of each unit. It serves to output to the power detection circuit unit 200.

Meanwhile, the power detection circuit unit 200 receives the coupled power from the plurality of couplers 100 and then converts the power into a voltage and at the same time converts the voltage into a digital signal of an appropriate bit and then tests the base station. It serves to output to the unit (300).

In this case, the power detection unit 201 mounted in the power detection circuit unit 200 receives power coupled from the plurality of couplers 100 and simultaneously converts the power into a voltage and outputs the power to the processor 202. It plays a role.

In addition, the processor 202 mounted in the power detection circuit unit 200 receives a voltage from the power detection unit 201 and converts the voltage into a digital signal of an appropriate bit, and then transfers the voltage to the HDLC communication processor 203. It plays a role of outputting.

The HDLC communication processor 203 mounted in the power detection circuit unit 200 receives a digital signal from the processor 202 and transmits the digital signal to the base station test unit 300 by the HDLC communication method. It plays a role.

Meanwhile, the base station test unit 300 receives a digital signal from the power detection circuit unit 200, checks the voltage standing wave ratio (VSWR) of the digital signal, and outputs the digital signal to the central situation room 400. do.

In this case, the base station test unit 300 checks the voltage standing wave ratio (VSWR) of the transmission and reception signals as well as the power of each unit in the base station, and serves to process alarm signals of each unit.

The central situation room 400 receives a digital signal from the base station test unit 300 and simultaneously displays the digital signal for the operator to check.

Next, the power measurement apparatus in the base station system having the above configuration will be described.

First, the digital circuit unit 10 receives a digital signal and simultaneously converts the digital signal into an analog signal and outputs the digital signal to the transceiver 20.

Then, the transceiver 20 receives an analog signal from the digital circuit unit 10 and converts the analog signal into an RF signal of a transmission frequency and outputs the analog signal to the linear power amplifier 30.

Subsequently, the linear power amplifier 30 receives an RF signal from the transceiver 20 and linearly outputs a high power of the RF signal and outputs the RF signal to the FEU 40.

Subsequently, the FEU 40 receives an RF signal amplified to a high output from the linear power amplifier 30 and finally filters the RF signal and outputs it through an antenna.

The plurality of couplers 100 are mounted in the power detection circuit unit 200 after cuffing power between the digital circuit unit 10, the transceiver 20, the linear power amplifier 30, and the FEU 40, respectively. To the detected power detector 201.

Then, the power detection unit 201 mounted in the power detection circuit unit 200 receives the coupled power from the plurality of couplers 100 and simultaneously converts the power into a voltage and outputs the power to the processor 202. do.

Then, the processor 202 mounted in the power detection circuit unit 200 receives a voltage from the power detection unit 201 and simultaneously converts the voltage into a digital signal of an appropriate bit, and then the HDLC communication processor 203. Will output

Subsequently, the HDLC communication processor 203 mounted in the power detection circuit unit 200 receives a digital signal from the processor 202 and simultaneously transmits the digital signal to the base station test unit 300 by the HDLC communication method. do.

Then, the base station test unit 300 receives the digital signal from the power detection circuit unit 200, checks the voltage standing wave ratio (VSWR) of the digital signal, processes the alarm signal of each unit in the base station, and then Output to the central situation room (400).

Subsequently, the central situation room 400 receives a digital signal from the base station test unit 300 and displays the digital signal so that an operator can monitor the digital signal to check whether there is an abnormality.

As described above, according to the apparatus for measuring power in a base station system according to the present invention, the power of each unit is coupled using a plurality of couplers when measuring power in a CDMA base station system. By enabling real-time monitoring of power of each unit in the base station in the situation room, it not only secures the power measurement of each unit in the base station, but also stops the call service through quick repair in case of power failure of each unit in the base station. There is an excellent effect that it can provide a higher quality communication service to users by preventing.

In addition, as a serial communication method, it is possible to measure power of several units in a base station using a single module, thereby simplifying circuit implementation.

Claims (2)

A power measurement apparatus in a base station system consisting of a digital circuit, a transceiver, a linear power amplifier, and an FEU, A plurality of couplers mounted between the digital circuit unit, the transceiver, the linear power amplifier, and the FEU, respectively, for outputting a cuff of the power of each unit; A power detection circuit unit which receives the coupled power from the plurality of couplers, converts the power into a voltage, and simultaneously converts the voltage into a digital signal of an appropriate bit and then outputs the converted voltage; A base station test unit which receives a digital signal from the power detection circuit unit and checks and outputs a voltage standing wave ratio (VSWR) of the digital signal; And And a central situation room configured to receive a digital signal from the base station test unit and to display the digital signal so that an operator can check the digital signal. The method of claim 1, The power detection circuit unit may include: a power detection unit that receives the coupled power from the plurality of couplers and simultaneously converts the power into a voltage and then outputs the voltage; A processor which receives a voltage from the power detector and converts the voltage into a digital signal of an appropriate bit and then outputs the voltage; And And an HDLC communication processor configured to receive a digital signal from the processor and simultaneously transmit the digital signal to the base station test unit by an HDLC communication method.