KR100653967B1 - System for measuring reception performance using the analyzing function of mobile phone and method therefor - Google Patents

Abstract

A receiving performance measurement system using an analysis function of a mobile communication terminal and a method thereof are provided to measure a BER(Bit Error Rate) and a PER(Packet Error Rate) by using the terminal itself or a receiving performance measurement device of the terminal connected in wire/wireless way for DMB(Digital Multimedia Broadcasting) signal receiving performance of the terminal, thereby reducing measurement result errors. A signal generator(100) generates a DMB signal, and transmits the generated signal. A receiving RF(Radio Frequency) antenna(200) receives the DMB signal. A mobile communication terminal(300) measures the first BER and the first PER through a measurement function included in the terminal(300) itself by using the DMB signal, stores the measured results, and sends the results or sends the results after storing the DMB signal. A receiving performance measurement device(500) receives the first BER and PER to display the received BER and PER, or receives the DMB signal to measure the second BER and the second PER by using the signal, then displays the second BER and PER. A data transmitter(400) relays data between the terminal(300) and the device(500).

Description

Receiving performance measuring system and method using analysis function of mobile communication terminal {System for measuring reception performance using the analyzing function of mobile phone and method therefor}

1A is a block diagram of a reception performance measurement system using an analysis function of a mobile communication terminal according to an embodiment of the present invention.

1B is a detailed configuration diagram of a mobile communication terminal according to an embodiment of the present invention.

Figure 1c is a detailed block diagram of a mobile communication terminal performance measurement apparatus according to an embodiment of the present invention.

2 is a flowchart illustrating a method of measuring reception performance using an analysis function of a mobile communication terminal according to an embodiment of the present invention.

The present invention relates to a reception performance measurement system and method using an analysis function of a mobile communication terminal, and more particularly, after receiving a DMB signal through an RF antenna in an electromagnetic shielding room and measuring the reception performance of a mobile communication terminal, The present invention relates to a reception performance measurement system and method using an analysis function of a mobile communication terminal that stores measurement results in a built-in flash memory and checks measurement results through wired or wireless.

Conventionally, a technology for measuring reception performance of a mobile communication terminal has been filed and registered in addition to the Republic of Korea Patent Publication No. 10-2005-0044182 (terminal wireless performance measurement method) (hereinafter referred to as "prior patent").

The preceding patent, comprising the steps of: commanding a wireless signal output from the computer to the terminal installed inside the electromagnetic shielding box via a data cable; Receiving a wireless signal output command from a terminal and outputting a wireless signal through a terminal antenna; And measuring a wireless performance by receiving a wireless signal of a terminal received through an antenna installed inside the electromagnetic shielding box in a measuring instrument and outputting a measurement result to a display unit.

However, the aforementioned patent has the effect of saving the time required for the cable connection and reducing the measurement error due to inadvertent cable connection by measuring the reception performance of the terminal wirelessly without connecting the measuring device and the terminal with a measurement cable. . However, if the instrument receives and measures the signal transmitted from the shielding room only wirelessly, transmission errors and measurement errors due to frequency noise may be committed, and the reception performance is measured wirelessly without measuring the reception performance at the terminal itself. As a result, there was a problem in that the reception performance of the terminal cannot be accurately measured.

In addition, the prior patent had a problem in that when the power of the measuring instrument is suddenly turned off, the measurement results can not be stored and lost.

An object of the present invention is to solve the above problems, the bit error rate (BER) and packet error rate (PER) through the analysis function of the mobile communication terminal itself receives the DMB signal through the RF antenna in the electromagnetic shielding room ) Is to provide a reception performance measurement system and method using an analysis function of a mobile communication terminal that stores the measurement results in the built-in flash memory and allows the measurement results to be checked in real time through wired or wireless. have.

In order to achieve the above object, the present invention provides a digital multimedia broadcasting (DMB) signal in a reception performance measurement system using an analysis function of a mobile communication terminal, and then generates the generated signal. A signal generator 100 for transmitting; A receiving RF antenna 200 which receives the DMB signal from the signal generator in a state of being connected to the signal generator; Measurement result of measuring a first bit error rate (BER) and a first packet error rate (PER) using a measurement function included in the same by using the DMB signal received by the receiving RF antenna A mobile communication terminal 300 storing and transmitting the measurement result or storing and transmitting the DMB signal; Receiving performance of receiving and displaying the first bit error rate and the first packet error rate measured by the mobile communication terminal, or measuring and displaying the second bit error rate and the second packet error rate by using the same after receiving the DMB signal. Measuring device 500; And a data transmitter 400 positioned between the mobile communication terminal and a reception performance measurement device to relay data. It includes.

Preferably, the signal generator and the receiving RF antenna are connected by an RF cable (C).

In addition, the receiving RF antenna and the mobile communication terminal is characterized in that located in the electromagnetic shield room (A).

Also preferably, the mobile communication terminal 300 includes: an input unit 310 for receiving the DMB signal from the receiving RF antenna; An output unit 320 for transmitting the measured results of the measured first bit error rate and the first packet error rate to the reception performance measuring apparatus through the data transmitter; A data storage unit 330 for storing data including the first bit error rate, the first packet error rate, and the DMB signal; A memory unit 340 for temporarily storing a DMB signal input through the input unit; And determining whether to measure a bit error rate and a packet error rate by using a measurement function included therein by using the DMB signal received from the signal generator through the input unit, and when measuring the first bit error rate and the first packet error rate. A control unit 350 for transmitting the measurement result to the reception performance measurement apparatus and transmitting a DMB signal itself to the reception performance measurement apparatus when the measurement result is not measured; Characterized in that it comprises a.

Also preferably, the reception performance measuring apparatus 500 includes: a data receiving unit 510 for receiving a measurement result of a first bit error rate and a first packet error rate or a DMB signal from the mobile communication terminal; A data display unit 520 for displaying a result of measuring the first bit error rate and the first packet error rate by a user; A RAM 530 for temporarily storing the received first bit error rate and the first packet error rate or temporarily storing the DMB signal; A hard disk 540 for storing a measurement result of the received first bit error rate and the first packet error rate or a measurement result of the second bit error rate and the second packet error rate measured using the received DMB signal; And determining whether the received data is the first bit error rate and the first packet error rate or the DMB signal, and if the DMB signal is used, measure the second bit error rate and the second packet error rate using the DMB signal, and display the result. A CPU 550 for storing the received first bit error rate and the first packet error rate result in the case of a 1 bit error rate and a first packet error rate; Characterized in that it comprises a.

Also preferably, the data transmitter 400 may include a USB cable when the data is relayed by wire, and an RF antenna for transmission when the data is wirelessly relayed.

Preferably, the signal generated by the signal generator is a DMB signal, an MPEG signal or a flow (FLO) signal.

On the other hand, the present invention is a method for measuring the reception performance using the analysis function of the mobile communication terminal, (a) the mobile terminal receiving the DMB signal from the signal generator; (b) the mobile communication terminal determining whether to measure a bit error rate and a packet error rate using a measurement function included in the mobile communication terminal by using the received DMB signal; (c) if the measurement result of step (b) is not measured, storing the received DMB signal itself and transmitting the received DMB signal to a reception performance measuring apparatus through a data transmitter; (d) On the other hand, if the measurement result of the step (b), the mobile communication terminal measures the first bit error rate and the first packet error rate, and then storing the result of the measurement; (e) the mobile communication terminal transmitting the measurement result of the first bit error rate and the first packet error rate to the reception performance measuring apparatus through the data transmitter; (F) storing and displaying measurement results of the first bit error rate and the first packet error rate transmitted by the mobile communication terminal; It includes.

And preferably, after step (c), (c-1) the receiving performance measuring apparatus measures a second bit error rate and a second packet error rate using the received DMB signal; And (c-2) the receiving performance measuring apparatus storing and displaying the measurement result of the second bit error rate and the second packet error rate; Characterized in that it comprises a.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It should be interpreted to mean meanings and concepts. In addition, when it is determined that the detailed description of the known function and the configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, it should be noted that the detailed description is omitted.

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

The structure and features of a reception performance measurement system using an analysis function of a mobile communication terminal according to an embodiment of the present invention will be described with reference to FIGS. 1A to 1C as follows.

1A is a configuration diagram of a reception performance measurement system using an analysis function of a mobile communication terminal according to an embodiment of the present invention, FIG. 1B is a detailed configuration diagram of a mobile communication terminal according to an embodiment of the present invention, and FIG. 1C. Is a detailed configuration diagram of a mobile communication terminal performance measurement apparatus according to an embodiment of the present invention.

As shown in FIG. 1A, a reception performance measurement system using an analysis function of a mobile communication terminal according to an embodiment of the present invention includes a signal generator 100, a reception RF antenna 200, and a flash memory F. One mobile communication terminal 300, a data transmitter 400 and a reception performance measurement apparatus 500 is included.

First, in the present embodiment, the receiving RF antenna 200 and the mobile communication terminal 300, which is a sample, will be set to be located inside the electromagnetic shielding room A so as to be tested in a shielding environment, but the present invention is not limited thereto. no.

The signal generator 100 generates a digital multimedia broadcasting (DMB) signal, and then transmits the generated signal to the receiving RF antenna 200 located in the electromagnetic shielding room A. do.

In this case, the transmitted DMB signal provides CD-level sound quality and data or video service, but the present invention is not limited thereto.

In the present embodiment, the signal generated by the signal generator is set as a DMB signal, but the present invention is not limited thereto, and includes a Moving Picture Experts Group (MPEG) signal and a Forward Link Only (FLO) signal.

In addition, the receiving RF antenna 200 receives a DMB signal from the signal generator 100 and is connected to the signal generator 100 by an RF cable (C).

In addition, as illustrated in FIG. 1B, the mobile communication terminal 300 including a flash memory (F) is located inside the electromagnetic shielding room A, and the DMB received by the receiving RF antenna 200. The first bit error rate (BER) and the first packet error rate (PER) are measured using the measurement function included in the mobile communication terminal itself using the signal, and the measurement result is stored. The data is transmitted to the reception performance measuring apparatus 500 through the data transmitter 400. The mobile communication terminal 300 performing this function includes an input unit 310, an output unit 320, a data storage unit 330, a memory unit 340, and a control unit 350.

The input unit 310 performs a function of receiving a CDM and COFDM DMB signal from the receiving RF antenna 200.

In addition, the output unit 320 transmits the measurement results of the first bit error rate and the first packet error rate measured by the control unit 350 to the reception performance measuring apparatus 500 through the data transmitter 400.

In addition, the data storage unit 330 is responsible for storing data including a first bit error rate, a first packet error rate, and a DMB signal, and generally performs a function of generating and managing predetermined data by database management software. do.

In this embodiment, the data storage unit 340 is preferably set to a flash memory (F) that can store data even when the power is suddenly turned off, the present invention is not limited thereto.

In addition, the memory unit 340 temporarily stores the DMB signal input through the input unit 310.

The controller 350 controls the operations of the input unit 310, the output unit 320, the data storage unit 330, and the memory unit 340, and receives the DMB received from the signal generator 100 through the input unit 310. It is determined whether the bit error rate and the packet error rate are measured by using a measurement function included in the mobile communication terminal itself by using the signal.In the case of measurement, the first bit error rate and the first packet error rate are measured, and the measurement result is received. If not, the measurement device 500 transmits the DMB signal itself to the reception performance measurement device 500.

For reference, the DMB signal is received through an RF antenna for receiving, and the terrestrial DMB (S-DMB) and the coded orthogonal frequency division multiplexing (COFDM) method using the code division multiplexing (CDM) method are used. Terrestrial DMB (T-DMA), terrestrial DMB (T-DMA) first filters the signal in an RF-tuner and transmits the signal to a DAB decoder, A / D conversion and OFDM demodulation at the stage, time deinterleaving, and Viterbi decoder (Viterbi Decoder) through the DAB (Digital Audio Broadcasting) signal is generated.

Next, the generated DAB signal may obtain an MPEG2 TS stream when the DMB decoder passes through an external code decoder. The stream is separated from the system decoder, divided into respective components, and then passed to the decoder which decodes each component, and each decoder decodes the original signals.

At this time, the bit error rate (BER) is measured through a DAB (Digital Audio Broadcasting) signal generated through a Viterbi Decoder, and an RSC decoder (Reed Solomon Decoder) of the data received from the encoded data receiver is demodulated. Detects and corrects the packet error rate (PER).

In addition, the data transmitter 400 is located between the mobile communication terminal 300 and the reception performance measuring apparatus 500 and performs a function of relaying data. In the case of relaying data, the transmission RF antenna is set to include an RF antenna, but the present invention is not limited thereto.

As illustrated in FIG. 1C, the reception performance measuring apparatus 500 receives and displays the first bit error rate and the first packet error rate received from the mobile communication terminal 300 through the data transmitter 400 or DMB. After receiving the signal and using it to measure and display the second bit error rate and the second packet error rate, the mobile terminal 300 receives the measurement result of the first bit error rate and the first packet error rate or Or a data receiving unit 510 for receiving a DMB signal, a data display unit 520 for displaying a measurement result of a first bit error rate and a first packet error rate, a RAM 530, a hard disk 540 and a CPI. 550.

The RAM 530 temporarily stores the received first bit error rate and the first packet error rate or temporarily stores the DMB signal.

In addition, the hard disk 540 measures the first bit error rate and the first packet error rate received from the mobile communication terminal 300 or the second bit error rate and the second packet error rate measured using the received DMB signal. It stores the data, and generally performs the function of generating and managing the predetermined data by the database management software.

The CPI 550 determines whether the data received from the mobile communication terminal 300 is a first bit error rate and a first packet error rate or a DMB signal, and when the DMB signal is a DMB signal, uses the second bit error rate and the second bit error rate. The packet error rate is measured and the result is displayed, and if the first bit error rate and the first packet error rate are received, the received first bit error rate and the first packet error rate result are stored.

Hereinafter, a method of measuring wired reception performance using an analysis function of a mobile communication terminal through the system of FIG. 1A according to an embodiment of the present invention as described above will be described with reference to FIG. 2.

2 is a flowchart illustrating a method of measuring wired reception performance using an analysis function of a mobile communication terminal according to an embodiment of the present invention.

First, the control unit 350 of the mobile communication terminal located inside the electromagnetic shielding room A receives the DMB signal from the signal generator 100 through the input unit 310 as shown in FIG. 3A (S2).

At this time, the DMB signal is received through the RF antenna for receiving, and the terrestrial DMB (T-T) using satellite DMB (S-DMB) and coded orthogonal frequency division multiplexing (COFDM) methods using code division multiplexing (CDM) methods. Terrestrial DMB (T-DMA) is first classified as a DMA; Terrestrial DMB (T-DMA) first filters a signal in an RF-tuner, and transmits the signal to a DAB decoder. A / D conversion and OFDM demodulation, time deinterleaving, and Viterbi decoder (Viterbi Decoder) generate DAB (Digital Audio Broadcasting) signal.

In the present embodiment, the signal generated by the signal generator is set as a DMB signal, but the present invention is not limited thereto, and includes a Moving Picture Experts Group (MPEG) signal and a Forward Link Only (FLO) signal.

Next, the control unit 350 determines whether to measure the bit error rate and the packet error rate by using the received DMB signal (S4).

As a result of the determination in step S4, when the bit error rate and the packet error rate are measured, the controller 350 measures the first bit error rate and the first packet error rate by using a measurement function included in the mobile communication terminal itself, and then measures the bit error rate and the packet error rate. The result is stored in the data storage unit 330 (S6).

In addition, the bit error rate is measured through the DAB (Digital Audio Broadcasting) signal generated through the Viterbi Decoder, and PER is the RS decoder (Reed Solomon Decoder) to detect the data received from the encoded data receiver after demodulation Measure by running and correction.

At this time, the data storage unit 330 is preferably set to a flash memory (F) that can store data even when the power is suddenly turned off, the present invention is not limited thereto.

Then, the measured result is transmitted to the reception performance measuring apparatus 500 through the data transmitter 400 (S8).

Here, when the data transmitter transmits the data received from the mobile communication terminal to the reception performance measurement device, the data cable is included in the case of relaying the data by wire, and in case of relaying the data wirelessly set to include a transmission RF antenna However, the present invention is not limited thereto.

 When the control unit 350 transmits the measurement results of the first bit error rate and the first packet error rate to the reception performance measurement apparatus 500 through the data transmitter 400, the control unit 350 transmits the data received by the CPI 550 of the reception performance measurement apparatus. Save and display (S10).

On the other hand, when the bit error rate and the packet error rate are not measured as a result of the determination in step S4, the control unit 350 stores the received DMB signal in the data storage unit 330 of the mobile communication terminal (S12).

Next, the DMB signal itself is transmitted to the reception performance measuring apparatus 500 through the data transmitter 400 (S14).

When the control unit 350 transmits the received DMB signal to the reception performance measurement apparatus 500, the central processing unit 550 of the reception performance measurement apparatus uses the DMB signal received from the mobile communication terminal 300 to obtain a second bit error rate. And a second packet error rate (S16).

The central processing unit 550 of the reception performance measuring apparatus stores the measured result so that the user can check it (S18).

As described above and described with reference to a preferred embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as described above, it is a deviation from the scope of the technical idea It will be understood by those skilled in the art that many modifications and variations can be made to the invention without departing from the scope of the invention. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

According to the present invention as described above, by measuring the bit error rate (BER) and packet error rate (PER) using the DMB signal reception performance of the mobile communication terminal using the terminal itself or a mobile communication terminal reception performance measurement device connected by wire or wireless, This reduces the error of measurement results due to signal transmission due to inadvertent cabling and signal distortion.

Further, in measuring the reception performance of the mobile communication terminal, the built-in flash memory (F) in the mobile communication terminal has the effect of storing the received signal and the measured result even when the power is turned off.

Claims (9)

In the reception performance measurement system using the analysis function of the mobile communication terminal, A signal generator 100 for generating a digital multimedia broadcasting (DMB) signal and transmitting the generated signal; A receiving RF antenna 200 which receives the DMB signal from the signal generator in a state of being connected to the signal generator;  Measurement result of measuring a first bit error rate (BER) and a first packet error rate (PER) using a measurement function included in the same by using the DMB signal received by the receiving RF antenna A mobile communication terminal 300 storing and transmitting the measurement result or storing and transmitting the DMB signal; Receiving performance of receiving and displaying the first bit error rate and the first packet error rate measured by the mobile communication terminal, or measuring and displaying the second bit error rate and the second packet error rate using the same after receiving the DMB signal. Measuring device 500; And A data transmitter 400 positioned between the mobile communication terminal and a reception performance measurement device to relay data; Receiving performance measurement system using the analysis function of the mobile communication terminal comprising a. The method of claim 1, Receiving performance measurement system using the analysis function of the mobile communication terminal, characterized in that the signal generator and the receiving RF antenna is connected by an RF cable (C). The method of claim 1, The receiving RF antenna and the mobile communication terminal is a reception performance measurement system using the analysis function of the mobile communication terminal, characterized in that located in the electromagnetic shielding room (A). The method of claim 1, The mobile communication terminal 300, An input unit 310 receiving the DMB signal from the receiving RF antenna; An output unit 320 for transmitting the measured results of the measured first bit error rate and the first packet error rate to the reception performance measuring apparatus through the data transmitter; A data storage unit 330 for storing data including the first bit error rate, the first packet error rate, and the DMB signal; A memory unit 340 for temporarily storing a DMB signal input through the input unit; And The first bit error rate and the first packet error rate may be determined by determining whether to measure a bit error rate and a packet error rate using a measurement function included therein by using the DMB signal received from the signal generator through the input unit. A control unit 350 which transmits the measurement result to the reception performance measurement apparatus after the measurement and transmits the DMB signal itself to the reception performance measurement apparatus when the measurement result is not measured; Receiving performance measurement system using the analysis function of the mobile communication terminal comprising a. The method of claim 1, The reception performance measuring apparatus 500, A data receiver 510 for receiving a measurement result of a first bit error rate and a first packet error rate or a DMB signal from the mobile communication terminal; A data display unit 520 for displaying a result of measuring the first bit error rate and the first packet error rate by a user; A RAM 530 for temporarily storing the received first bit error rate and the first packet error rate or temporarily storing the DMB signal; A hard disk 540 for storing a measurement result of the received first bit error rate and the first packet error rate or a measurement result of the second bit error rate and the second packet error rate measured using the received DMB signal; And It is determined whether the received data is the first bit error rate and the first packet error rate or the DMB signal. In the case of the DMB signal, the second bit error rate and the second packet error rate are measured using the DMB signal, and the result is displayed. A CPI 550 for storing the received result of the first bit error rate and the first packet error rate in the case of a bit error rate and a first packet error rate; Receiving performance measurement system using the analysis function of the mobile communication terminal comprising a. The method of claim 1, The data transmitter 400, If you're relaying data over wires, include a USB cable, Receiving performance measurement system using the analysis function of the mobile communication terminal, characterized in that it comprises a transmitting RF antenna when wirelessly relaying data. The method of claim 1, The signal generated by the signal generator, A reception performance measurement system using an analysis function of a mobile communication terminal, characterized in that the DMB signal, MPEG signal or flow (FLO) signal. In the reception performance measurement method using the analysis function of the mobile communication terminal, (a) a mobile communication terminal receiving a DMB signal from a signal generator; (b) the mobile communication terminal determining whether to measure a bit error rate and a packet error rate using a measurement function included in the mobile communication terminal by using the received DMB signal; (c) if the measurement result of step (b) is not measured, storing the received DMB signal itself and transmitting the received DMB signal to a reception performance measuring apparatus through a data transmitter; (d) On the other hand, if the measurement result of the step (b), the mobile communication terminal measures the first bit error rate and the first packet error rate, and then storing the result of the measurement; (e) the mobile communication terminal transmitting the measurement result of the first bit error rate and the first packet error rate to the reception performance measuring apparatus through the data transmitter; And (f) storing and displaying measurement results of the first bit error rate and the first packet error rate transmitted by the mobile communication terminal; Receiving performance measurement method using the analysis function of the mobile communication terminal comprising a. The method of claim 8, After step (c), (c-1) the receiving performance measuring apparatus measuring a second bit error rate and a second packet error rate using the received DMB signal; And  (c-2) the receiving performance measuring apparatus storing and displaying the measurement result of the second bit error rate and the second packet error rate; Receiving performance measurement method using the analysis function of the mobile communication terminal comprising a.

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