KR19990003115A - Automatic Detection of VOCODER in CDMA Systems - Google Patents

Abstract

1. Technical field to which the invention described in the claims belongs

Automatic Detection of Bad Vocoder in CDMA System

2. The technical problem to be solved by the invention

When the conventional bad vocoder is detected, the operator needs to check whether or not the specific vocoder is defective, so it takes a lot of detection time, and when the detected bad vocoder is processed, the operator detaches the detected vocoder or blocks the vocoder in the BSM. It is to solve the inconvenience of excluding from the selection of Hoshi-shi vocoder.

3. Summary of Solution to Invention

A first step (ST1-ST5) of selecting a vocoder to determine whether there is a defect and calculating a defective rate using the defective counting value of the selected vocoder; A second step ST6 of comparing the defective rate calculated in the first process with a predetermined defective rate threshold to determine whether the defective is defective; When it is determined that the selected vocoder is inferior as a result of the comparison, a third process (ST7) (ST8) is performed to transmit the vocoder defective telegram to the base station operating system to exclude the corresponding vocoder.

4. Important uses of the invention

It is applied to detect the defect of vocoder in CDMA mobile communication system.

Description

Automatic Detection of VOCODER in CDMA Systems

The present invention relates to a VOCODER of a code division multiple access (CDMA) mobile communication system. In particular, it improves the reliability of the equipment by automatically detecting the VOCODER which is expected to be defective by using a statistical method and detects the defective VOCODER. The present invention relates to a method for automatically detecting a bad vocoder of a CDA system which saves time.

In general, in the CDMA mobile communication system, it is the VOCODER that absolutely affects the sound quality of the call, and such vocoder degrades the call sound quality when it is used for a long time.

Therefore, in order to prevent the interference of the call sound quality, the accurate performance of the vocoder is frequently detected, and when an abnormality occurs, it is necessary to replace or repair immediately to prevent the degradation of the call sound quality.

In general, a conventional bad vocoder detection method, an operator makes a call and checks whether or not a specific vocoder is defective and detects a bad vocoder, and the processing of the detected bad vocoder is performed by the operator dismounting the detection vocoder or BSM ( In Bsde Station Management, the bad vocoder is blocked so that the call is not selected by the vocoder.

However, in the conventional method as described above, since the operator must check whether or not the specific vocoder is defective, it takes a lot of detection time, and also has a disadvantage in that it lacks accuracy.

In addition, even when the detected bad vocoder is processed, the operator dismounts the detection vocoder or blocks the vocoder in the BSM and uses it to exclude it from the selection of the preferred city vocoder.

Therefore, the present invention has been proposed to solve all the problems caused during the conventional bad vocoder detection and bad vocoder processing as described above,

An object of the present invention is to automatically detect a vocoder (VOCODER) that is expected to be defective by using a statistical method to improve the reliability of the equipment and to reduce the time to detect a bad vocoder automatic vocoder detection method of the CDMA system (CDMA) To provide.

A method for achieving this object of the present invention.

Selecting a vocoder to determine whether there is a defect and calculating a defective rate with a defective counting value of the selected vocoder;

A second process of comparing the defective rate calculated in the first process with a preset defective rate threshold value to determine whether the defective state is defective;

If it is determined that the selected vocoder is inferior as a result of the comparison, a third process is performed to transmit the vocoder defect information to the base station operating system to exclude the corresponding vocoder.

Aha, when described in detail with reference to the accompanying drawings of the present invention.

1 is a schematic structural diagram of a CDMA system to which the present invention is applied;

1 is a flowchart illustrating a method for automatically detecting a defective vocoder of a CDA system according to the present invention.

1 is a configuration diagram of a CDMA mobile communication system to which the present invention is applied;

Fig. 2 is a flowchart showing a method for automatically detecting a defective vocoder according to the present invention, which includes selecting a vocoder (ST1), increasing a vocoder selection count (ST2). Checking whether the call is released (ST3), increasing the failure count (ST4), calculating the failure rate (ST5), comparing the failure rate and the failure rate threshold (ST6), and the base station operating system. A step ST7 for notifying that a bad vocoder is present and a step ST8 for blocking the bad vocoder are performed.

Hereinafter, the operation of the present invention will be described.

First, a statistic table is provided for each of the 1920 TSB vocoders managed by a call control processor (CCP), and a vocoder for determining whether a defect is selected is selected (ST1).

The count of the selected vocoder is increased (ST2) and the call status is checked (ST3).

Here, it is determined whether there is an abnormality in the call release state, and the call release after the release by the user and the call state is excluded from the abnormal state.

In this way, if an abnormal state of the vocoder is detected, the defect count is increased (ST4), and a defect rate is calculated to determine the defective vocoder (ST4).

Here, the defective rate calculation calculates the defective count value as the vocoder selection count value, and multiplies the result by 100 to calculate the defective rate. Thereafter, the calculated defective rate is compared with a predetermined defective rate threshold to determine whether the defectiveness is determined (ST6), and if the calculated defective rate is less than the defective rate threshold, it is judged as normal and returns. Otherwise, the calculated defective rate is the defective rate. If it is larger than the threshold, it is determined that the vocoder is defective, and the BSM, which is the base station operating system, is notified that the vocoder is defective (ST7).

Then, the BSM blocks the bad vocoder as before and excludes it from the vocoder selection when the call is attempted (ST8).

The above-described method has described an example of determining whether one vocoder is defective. If the above method is applied to each of the 1920 TSB vocoders managed by the call control processor, the method is automatically used to determine whether the vocoder is defective. It is possible to check. In addition, if it is determined that the bad vocoder is automatically informed that the vocoder selected in the base station operating system is a bad vocoder to easily block.

As described in detail above, the present invention can automatically calculate a defective rate for each vocoder managed by the call control processor, and if it is determined that the defective vocoder is determined, the vocoder selected by the base station operating system is automatically notified. Since automatic block of bad vocoder is possible, there is an effect of minimizing the incompleteness of the call when attempting a call.

In addition, there is an advantage that high quality mobile communication service is possible by minimizing the incomplete rate of the call, and furthermore, by automatically checking whether or not the vocoder is defective, the vocoder defect rate detection time is saved and the manpower waste can be prevented.

Claims (3)

In the method of determining whether the TSB vocoder is bad, A first step (ST1-ST5) of selecting a vocoder to determine whether there is a defect and calculating a defective rate using the defective counting value of the selected vocoder; A second step ST6 of comparing the defective rate calculated in the first process with a predetermined defective rate threshold to determine whether the defective is defective; If the selected vocoder is determined to be defective as a result of the comparison, the CDM includes a third process (ST7) (ST8) for transmitting the vocoder defective government to the base station operating system to exclude the vocoder from the call attempt. Automatic vocoder detection method of this system. The method of claim 1, wherein the first process comprises: selecting a vocoder for determining whether a defect is present (ST1), increasing a count value of the selected vocoder (ST2), and confirming whether a call is normal ( ST4) and a step of increasing the bad count by 1 whenever it is determined that the call is abnormal (ST4), and the step of calculating the defective rate (ST5) characterized in that the automatic vocoder detection method of the CD system. The method of claim 2, wherein the calculating of the defective rate comprises calculating a defective count value as the vocoder selection count value, multiplying the result value by 100, and determining the result value as the defective rate. .