KR100414221B1 - Method for testing function of pco interface in n-wll phone - Google Patents

Abstract

The present invention relates to a method of testing a PCO interface function in an N-WLL terminal, and in particular, a first step of initializing to an idle state; A second step of determining whether the handset state is off-hook; A third step in which the microprocessor receives the DTMF signal when the second step is off-hook; A fourth step of the microprocessor determining whether the DTMF signal is equal to a specific data value set; If the DTMF signal is equal to the specific data value set in the fourth step, the microprocessor activates the PCO control mode, receives a new DTMF signal, and simultaneously transmits a polarity reversal or metering pulse of the tip / ring of the corresponding handset. A fifth step of performing an operation; And the microprocessor terminates if the handset state is in the on-hook state, and proceeds to the fifth step if the handset state is not in the on-hook state. The need for a small base station configured to verify the PCO function of the system can greatly reduce investment costs.

Description

Method of testing PCO interface function in N-PLL terminal {METHOD FOR TESTING FUNCTION OF PCO INTERFACE IN N-WLL PHONE}

The present invention relates to a Public Call Office (PCO) interface function test method in a N-WLL terminal (hereinafter referred to as N-WLL) terminal, and more particularly, to a PCO interface. The present invention relates to a method of testing the PCO interface function in an N-WLL terminal that enables verification of the PCO interface function using only the N-WLL terminal without the infra interworking of the wireless communication system.

In the conventional method of testing the PCO interface function of an N-BLL terminal, the received message is received after receiving a flash information message through a traffic channel from a wireless communication system according to the IS-95B standard. It was operated to send a metering pulse of 12 kHz or 16 kHz to the polarity inversion of the tip / ring of the phone or the tip / ring by the specific field value of the specific record.

However, when the PCO interface function is tested in the N-WLL terminal using the conventional method as described above, the wireless communication system is formally registered in the infrastructure of the radio communication system for testing the normal operation of the PCO interface function. As the operation can be confirmed only by the message received from the user, verification of the PCO interface function for all terminals is impossible in the case of mass production, and thus there is a problem in that an error in the production cannot be checked. .

In addition, as a small base station must be configured for verifying the PCO function of the actually produced product, there is a problem of enormous investment cost.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to use the N-WLL terminal only without the infrastructure interworking of the wireless communication system, the terminal test of PCO interface function verification and the independent test in the laboratory. The present invention provides a method of testing a PCO interface function in an N-PLL terminal.

In order to achieve the above object, the method of testing a PCO interface function in an N-WLL terminal of the present invention is a method of testing a PCO interface function in an N-WLL terminal including a SLIC controller, a codec, a microprocessor, and an RF transceiver. ,

A first step of initializing the microprocessor to an idle state for normal operation;

A second step of the microprocessor determining whether the handset state of the telephone is in an off-hook state;

A third step of proceeding to the first step if the handset state is not in the off-hook state in the second step, and receiving the digitally encoded DTMF signal from the codec by the microprocessor if the handset state is in the off-hook state;

A fourth step of determining, by the microprocessor, whether the DTMF signal input from the codec is equal to a predetermined specific data value;

A fifth step in which the microprocessor is activated in the PCO control mode when the DTMF signal is equal to a predetermined specific data value in the fourth step; and a fifth in which the microprocessor receives a new DTMF signal digitally encoded from the codec. Step -2, step 5-3 in which the microprocessor determines whether the new DTMF signal input from the codec is "0", and in step 5-3, if the new DTMF signal is "0", The microprocessor outputs the polarity inversion control signal to the SLIC control unit to invert the polarity of the tip / ring of the telephone; and in step 5-3, the new DTMF signal is " 0 " Otherwise, the microprocessor determines whether the new DTMF signal received from the codec is "1", or steps 5-5, and in step 5-5, A fifth step including the fifth to sixth steps of outputting a metering pulse control signal to the SLIC controller when the new DTMF signal is "1" and sending a metering pulse to the tip / ring of the telephone; And

The microprocessor determines whether the handset state of the telephone is on-hook and terminates if the handset state is on-hook. The microprocessor terminates if the handset state is not on-hook. Characterized in that the sixth step to proceed to the step.

1 is a functional block diagram showing the configuration of a PCO interface function test apparatus in an N-WLL terminal according to an embodiment of the present invention;

2 is an operation flowchart showing a method of testing a PCO interface function in an N-WLL terminal according to an embodiment of the present invention;

FIG. 3 is an operation flowchart illustrating the operation of the fifth step S5 in the method of testing the interface function of the N-PLL terminal of FIG. 2 in more detail.

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

100: SLIC control unit 200: codec

300: microprocessor 400: RF transceiver

Hereinafter, a method of testing a PCO interface function in an N-WLL terminal according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a functional block diagram of a PCO interface function test apparatus in an N-WLL terminal according to an embodiment of the present invention. 1), SLIC (Subscriber Line Interface Circuit; referred to as SLIC) control unit 100, codec (200), microprocessor 300, and RF (Radio Frequency; referred to as RF) transceiver ( 400).

The telephone 1 is a general DTMF (Dual Tone Multi Frequency) type telephone. The hook signal and the specific DTMF signal are sent to the SLIC controller 100 according to a tester's selection. It plays a role of outputting.

In addition, the SLIC control unit 100 receives a hook signal and a specific DTMF signal from the telephone 1 and outputs the hook signal to the microprocessor 300, and the specific DTMF signal is sent to the codec 200. On the other hand, when the polarity inversion control signal or the metering pulse control signal is input from the microprocessor 300, the polarity of the tip / ring of the telephone set 1 is reversed or the tip of the telephone set 1 is received. It sends metering pulse to / ring.

The codec 200 is a processor for converting an analog signal into a digital signal and converting the digital signal into an analog signal. The codec 200 receives a specific DTMF signal from the SLIC controller 100 and at the same time receives the specific DTMF signal. After digitally encoding the to serve to output to the microprocessor (300).

Meanwhile, the microprocessor 300 receives the digitally encoded specific DTMF signal from the codec 200 and is activated in the PCO control mode, while receiving the new DTMF signal from the codec 200 and correspondingly. The polarity inversion control signal and the metering pulse control signal serves to output to the SLIC control unit 100.

In addition, when the RF transceiver 400 receives an RF signal from a base station (not shown) through an antenna, the RF transceiver 400 outputs the RF signal to the microprocessor 300, and receives the RF signal from the microprocessor 300. When received, the RF signal is transmitted to the base station through the antenna.

Next, a description will be given of a method of testing the interface interface function of the N-PLL terminal according to an embodiment of the present invention using the apparatus for testing the interface interface function of the N-PLL terminal having the above configuration.

2 is an operation flowchart showing a method of testing a PCO interface function in an N-WLL terminal according to an embodiment of the present invention.

First, when power is supplied to the terminal, the microprocessor 300 is initialized to an idle state for normal operation (S1).

Then, the microprocessor 300 determines whether the handset state of the telephone 1 is in an off-hook state (S2).

In this case, when the handset state is not in the off-hook state in the second step S2, the process proceeds to the first step S1, and when the handset state is in the off-hook state, the microprocessor 300 performs the codec 200. In step S3, a digitally encoded DTMF signal is received.

Subsequently, the microprocessor 300 determines whether the DTMF signal input from the codec 200 is equal to a predetermined specific data value (S4).

Here, when a specific data value (for example, a string of "## 2781 *") is set in advance, the character string ("## 2781 *") of the specific DTMF signal received from the codec 200 is equal to the specific data value. Judge.

In this case, if the DTMF signal is equal to a predetermined data value in the fourth step (4), the microprocessor (300) is activated in the PCO control mode and receives a new DTMF signal from the codec (200). The polarity of the tip / ring of the corresponding telephone 1 is reversed or the metering pulse is sent to the tip / ring of the telephone 1 (S5).

Here, the detailed operation process of the fifth step S5 will be described in more detail with reference to FIG. 3 as follows.

First, the microprocessor 300 is activated in the PCO control mode (S5-1).

Subsequently, the microprocessor 300 receives a new DTMF signal digitally encoded from the codec 200 (S5-2).

Thereafter, the microprocessor 300 determines whether the new DTMF signal received from the codec 200 is "0" (S5-3).

In this case, when the new DTMF signal is "0" in the fifth step (S5-3), the microprocessor 300 outputs a polarity inversion control signal to the SLIC control unit 100 to tip the phone 1. Invert the polarity of the / ring (S5-4).

On the other hand, if the new DTMF signal is not "0" in the fifth step (S5-3), the microprocessor 300 determines whether the new DTMF signal received from the codec 200 is "1". It determines (S5-5).

At this time, if the new DTMF signal is "1" in the fifth step (S5-5), the microprocessor 300 outputs a metering pulse control signal to the SLIC control unit 100 of the telephone (1) Send a metering pulse to the tip / ring (S5-6).

Then, the microprocessor 300 again determines whether the handset state of the telephone 1 is on-hook and terminates the operation if the handset state is on-hook. If the handset state is not on-hook, the process proceeds to the fifth step S5 (S6).

In this case, when the DTMF signal is not equal to a predetermined specific data value in the fourth step S4, the microprocessor 300 determines whether the handset state is an on-hook state and at the same time the handset state. If is in the on-hook state, the process proceeds to the first step S1, while if the handset is not in the on-hook state, the process proceeds to the third step S3 (S7).

As described above, the method of testing the PCO interface function in the N-WLL terminal according to the present invention enables the verification of the PCO interface function using only the N-WLL terminal without the infrastructure interworking of the wireless communication system when testing the PCO interface function. As a result, it is possible to efficiently test the operation of the PCO interface function of the N-WLL terminal and the verification of the corresponding hardware during mass production, and also the huge investment cost by eliminating the need for the small base station configured for verifying the PCO function of the actual mass-produced terminal. There is an excellent effect that this can be reduced.

Claims (4)

A PCO interface function test method in an N-WLL terminal having a SLIC controller, a codec, a microprocessor, and an RF transceiver, A first step of initializing the microprocessor to an idle state for normal operation; A second step of the microprocessor determining whether the handset state of the telephone is in an off-hook state; A third step of proceeding to the first step if the handset state is not in the off-hook state in the second step, and receiving the digitally encoded DTMF signal from the codec by the microprocessor if the handset state is in the off-hook state; A fourth step of determining, by the microprocessor, whether the DTMF signal input from the codec is equal to a predetermined specific data value; A fifth step in which the microprocessor is activated in the PCO control mode when the DTMF signal is equal to a predetermined specific data value in the fourth step; and a fifth in which the microprocessor receives a new DTMF signal digitally encoded from the codec. Step -2, step 5-3 in which the microprocessor determines whether the new DTMF signal input from the codec is "0", and in step 5-3, if the new DTMF signal is "0", The microprocessor outputs the polarity inversion control signal to the SLIC control unit to invert the polarity of the tip / ring of the telephone; and in step 5-3, the new DTMF signal is " 0 " Otherwise, the microprocessor determines whether the new DTMF signal received from the codec is "1", or steps 5-5, and in step 5-5, A fifth step including the fifth to sixth steps of outputting a metering pulse control signal to the SLIC controller when the new DTMF signal is "1" and sending a metering pulse to the tip / ring of the telephone; And The microprocessor determines whether the handset state of the telephone is on-hook and terminates if the handset state is on-hook. The microprocessor terminates if the handset state is not on-hook. Method of testing the interface interface function in the N-BLL terminal, characterized in that the sixth step to proceed to the step. The method of claim 1, In the fourth step, if the DTMF signal is not equal to a predetermined specific data value, the microprocessor determines whether the handset state is on-hook, and if the handset state is on-hook, And a seventh step of proceeding to the third step if the handset state is not on-hook and further comprising a seventh step. delete delete