KR100350464B1 - Method for up-grading data-base of home-zone in mobile communication system - Google Patents

Abstract

end. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a method for updating a database in real time in a mobile communication system.

I. Technical Problems to be Solved by the Invention

A method for accurately updating a home-zone area in real time by receiving a signal of a home-zone confirmation call when using a home-zone call in a mobile communication system.

All. The point of the solution of the invention

A method for updating a home-zone database in real-time upon receiving a home-zone call in a mobile communication system, the method comprising the steps of: receiving a home- A second step of calculating a value to be filtered using position information of a base station and a base station, a second step of filtering only call information within an allowable range from a position of a groove after the values to be filtered are calculated, And updating the home-zone list and updating the home-zone list to the home location register of the mobile communication system.

The first process may further comprise:

A distance calculation step of calculating a distance using coordinates between the home and the base station, a separation distance calculation step of calculating a separation distance between the base station and the mobile communication terminal, and an angle between the home and the base station, Can be configured as a step

The second process may further comprise:

Extracting only a signal having a predetermined signal transmission / reception time between the mobile communication terminal and the base station within a preset range,

If the distance between the home and the base station is less than a predetermined distance, the home-zone database can be updated using all data received from the mobile communication terminal in exceptional cases.

la. Important Uses of the Invention

And is used at the time of updating the home-zone area in the mobile communication system.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for updating a home-zone database in a mobile communication system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for updating a database (DB) in a mobile communication system, and more particularly to updating a home-zone database.

Generally, a mobile communication system is composed of a mobile communication switching system, a base station controller, and a base station, and is a system for providing mobile communication subscribers to perform communication while carrying a mobile terminal. In the mobile communication system, a home-zone refers to a specific area, for example, an area having a radius of approximately 1 Km centering on the address of the subscriber, and a home-zone for varying billing for calls made in the designated area. Area. Such a home - zone service started from the concept of diversifying the types of services provided by mobile communication service providers in order to diversify the system of mobile communication fees and maintain more subscribers.

Accordingly, the subscriber types registered in the mobile communication system providing the home-zone service can be classified into three types. These three types of subscribers are as follows: first, a general mobile communication subscriber; second, a subscriber receiving only a home-zone service; and a third subscriber registered simultaneously in a mobile communication and a home-zone. Since the first case is a general mobile communication subscriber, a detailed description will be omitted. In the second case, the subscriber is able to communicate only in the home - zone area. In the third case, the subscriber is charged in the home - zone area and the service in the non - home - zone area.

In order to correctly perform the above-described home-zone service, the home-zone area must be clarified. Therefore, the initial home-zone database is registered in the home-zone management server using a wireless network design tool, a diagnostic monitor (DM), and a zone database conversion tool. Then, the home-zone management server registers it as a home-zone area in a home location register (HLR) of the mobile communication system. Then, the mobile communication system performs the home-zone service on the basis thereof.

The above-mentioned home-zone service is continuously changed after the initial service is started. That is, the environment of radio waves may be changed due to changes in the radio environment due to new construction or change of buildings around the subscriber's house, expansion or replacement of base stations, or addition and replacement of sub-base stations (Pico_BTS). Therefore, a method for updating the home-zone database has been set up in order to cope with the change of the surrounding situation. Such a method will be described below.

The subscriber first tries the call using a preset number such as a specific number, for example, * 65, which is set for updating the home-zone database. The base station or the base station controller then grasps the characteristics of the call and concurrently connects the call to the mobile communication switching system. And collects characteristic data of the call according to the home-zone database and transmits the collected data to the mobile communication switching system. Then, the mobile communication switching system receives this and checks the area where the call is most frequently attempted in the area for updating the home-zone database. Then, it is checked whether there is an area to be added to the list of the home-zone database and whether the data can be added to the list of the home-zone database. In the case of the data to be added as a result of the check, the home-zone database is updated and the updated database information is recorded in the home location register (HLR).

However, in the case of using the above-described method, there are the following problems. If the user intends to widen the area of the home-zone, a call for home-zone identification in an outer zone of the home-zone or in an area other than the home-zone, for example, a home- There is a possibility that the erroneous area can be widened to the home-zone. In addition, there has been a problem that the wireless environment can not be properly accommodated in real time when it is changed from time to time.

It is therefore an object of the present invention to provide a method for accurately updating an accurate home-zone area through receipt of a home-zone confirmation call.

It is another object of the present invention to provide a method for preventing registration of a wrong area into a home-zone area through receipt of a home-zone confirmation call.

According to another aspect of the present invention, there is provided a method for updating a home-zone database in real time when receiving a home-zone call in a mobile communication system, the method comprising the steps of: A second step of filtering only call information within an allowable range from a position of a home after the values to be filtered are calculated; And updating the home-zone list using the filtered value and updating the updated home-zone list to the home location register of the mobile communication system.

The first process may further comprise:

A distance calculation step of calculating a distance using coordinates between the home and the base station, a separation distance calculation step of calculating a separation distance between the base station and the mobile communication terminal, and an angle between the home and the base station, Can be configured as a step

The second process may further comprise:

Extracting only a signal having a predetermined signal transmission / reception time between the mobile communication terminal and the base station within a preset range,

If the distance between the home and the base station is less than a predetermined distance, the home-zone database can be updated using all data received from the mobile communication terminal in exceptional cases.

1 is a configuration diagram of a mobile communication system for providing a home-zone service and updating a database of a home-zone area according to the present invention;

FIG. 2 is a control flowchart for updating a home-zone area in a home-zone management server according to a preferred embodiment of the present invention; FIG.

FIG. 3 is a diagram showing coordinates of a position between a base station and a groove for explaining calculation of sector information according to the present invention; FIG.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

1 is a block diagram of a mobile communication system for providing a home-zone service and updating a database of a home-zone area according to the present invention. Hereinafter, a configuration and operation of a mobile communication system for updating a database of a home-zone area will be described with reference to FIG.

The base stations (BTS1, BTS2, BTS3) 101, 102, and 103 of the mobile communication system can communicate wirelessly with the mobile communication terminal and provide services according to the type of the subscribed service. If the subscriber is registered in the home-zone service, it has a home-zone area in the base stations 101, 102, and 103 described above. In this case, the base stations 101, 102, and 103 may be sub-base stations or general base stations. Hereinafter, it is referred to as a base station (BTS) without distinguishing between them. Each of the base stations 101, 102 and 103 is connected to a base station controller (BSC) 104 and can communicate with each other. When a sub-base station among the base stations 101, 102 and 103 exists, Lt; RTI ID = 0.0 > 104 < / RTI > In addition, although each base station 101, 102, 103 shown in FIG. 1 is shown connected to one base station controller 104, it may be connected to another base station controller. In addition, when the base stations 101, 102, and 103 attempt a call for a home-zone check from the mobile station (MS) 20, for example, a call such as * 65, And a table. The table for filtering is provided with a database as shown in Table 1 below.

Kinds Explanation bts_id BTS ID latin Latitude long Longitude angle 1 Angle of αsector (0 to 360) angle 2 Angle of βsector (0 to 360) angle 3 Angle of γector (0 to 360) ang_ran 1 α scetor range ang_ran 2 β scetor range ang_ran 3 γ scetor range s_delay 1 α sector system delay s_delay 2 β sector system delay s_delay 3 γ sector system delay svc_ran 1 α Sector Service Range svc_ran 2 β Sector Service Range svc_ran 3 γ Sector Service Range exp_ran Chip Number at Exception case

As shown in Table 1, data of each sector and data according to latitude and longitude should be stored. In the following description, Table 1 is referred to as a " base station filtering table ". In the base station filtering table, Angle 1 is a range of angles relative to the 12 o'clock direction of the a sector, Angle 2 is a range of angles with reference to 12 o'clock direction of the beta sector, Angle 3 is a range of angles of the? Sector The range of angles relative to the 12 o'clock direction of the watch. Also, Ang_ran 1 is a deviation to be applied to the alpha sector. Therefore, the Ang_ran 2 is a ± deviation to be applied to the β sector, and the Ang_ran 3 is a deviation to be applied to the γ sector. Also, s_delay 1 is the system delay time of the alpha sector, s_delay 2 is the system delay time of the beta sector, and s_delay 3 is the system delay time of the? Sector. svc_ran 1 indicates that it is able to receive home-zone services in the a sector, svc_ran 2 indicates that it can receive home-zone services in the beta sector, and svc_ran 3 can receive home- . Lastly, exp_ran is an exceptional case where the latitude / longitude of the subscriber overlaps the latitude / longitude of the base station, and the angle is not considered when the position of the groove from the base station is less than a certain distance. In this case, the home-zone confirmation call checks the appropriate call using only RTD (Round Trip Delay) value without determining a specific sector.

In addition, if the distance is relative to Australian (D _lat) of the latitude and the 30.63 [m], the distance of the longitude _(lon D) is a 25.95 [m] When, based on the Australian. Also the distance in the subscriber's home-zone confirmation call is calculated by the RTD value, and the angle can be calculated by the sector. In this manner, filtering can be performed by replacing the values with distance and angle values, and the home-zone information can be updated using the filtered values.

When a home-zone confirmation call is received from the mobile communication terminal 20 using the information provided in the base station filtering table, the mobile station 100 performs filtering using the base station filtering table and transmits the filtered data to the base station controller 104. The base station transmits the call record table data of the form shown in Table 2 below to the base station controller 104 by filtering the data filtered by the call of the base station filtering table received from the mobile communication terminal 20.

division Explanation nsn Call Subscriber Number nid Network Identification bts_id BTS_ID sector_id Sector_ID rtd RTD Value that call Created cnt * 65 calls distance Distance between subscriber and base station

In the following description, " Table 2 " is referred to as " call record table ". When the home-zone confirmation call is received from the mobile communication terminal 20, the base station 102 creates the call record table and transmits it to the base station controller 104. [ Thereby processing the home-zone confirmation call.

The base station controller 104 is connected to a mobile communication switching system (MSC) The mobile communication switching system 105 is connected to a plurality of base station controllers (BSC) and is connected to a home location register (HLR) 106. The mobile communication switching system 105 has a VLR (Vistor Location Register) therein, reads data of the home-zone area from the HLR 106, stores the data, and makes a special charge for the area of the home- . The mobile communication switching system 105 is also connected to the Public Switched Telephone Network (PSTN) or the mobile communication network 108 and includes a home-zone management server (LDSPC) 107). The home-zone management server 107 and the HLR 106 store home-zone area list information of subscribers. The results are shown in Table 3 below.

division Justice nsn National Switching Number nid 1 Network Identifier (MSC) bts 1 (N = 1) BTS_ID sector 1 (N = 1) SECTOR ID rtd_min 1 (N = 1) RTD_MIN rtd_max 1 (N = 1) RTD_MAX ... ... nid 8 Network Identifier (MSC) bts 8 (N = 8) BTS_ID sector 8 (N = 8) SECTOR ID rtd_min 8 (N = 8) RTD_MIN rtd_max 8 (N = 8) RTD_MAX

Table 3 is referred to as " home-zone list information table " in the following description. The home-zone list information table is stored together with the fraudulent home-zone management server 107 and the HLR 106, and after being updated by the home-zone management server 107 at the time of updating, And transferred from the server 107 to the HLR 106.

Meanwhile, the home-zone management server 107 is connected to the operator terminal (CCC) 109 and receives the initial value of the home-zone area from the fraudulent operator terminal 109. The initial value of the home-zone may be calculated and input by the operator computer 109, or may be configured to receive the home-address of the mobile communication terminal and calculate it at the home-zone management server 107. This is a design matter. In addition, the position of the home-zone can be initially inputted by using a tool used for determining the position of the home-zone. Then, the home-zone management server 107 divides data received from the mobile communication switching system 105 by type and collects the data, and updates the database of the home-zone area using the collected data. In addition, the home-zone management server 107 is connected to the HLR 106 to transfer the initial home-zone data to the HLR 106 or to deliver the newly updated home-zone data to the HLR 106 according to the present invention .

Hereinafter, a process of collecting data for updating the database of the home-zone area will be described. First, a user registered in the home-zone service transmits by using a specific function key set for confirming a home-zone in his / her home-zone area, or transmits a series of keys for preset home- * 65 ", and sets a home-zone confirmation call by requesting a call as if dialing the number. Thereby establishing a communication channel between the second base station 102 and the mobile communication terminal 20. When the communication channel is set up, the second base station 102 transmits the ID of the base station, the sector ID, RTD (Round Trip Delay), and the like to the base station controller 104 at a predetermined time period (Guard Time). At this time, the base station 102 filters data received from the mobile communication terminal 20 through the base station filtering table, collects data in the same form as the call record table, and transmits the collected data to the base station controller. Then, the base station controller transmits it to the mobile communication system 105. The mobile communication switching system 105 transmits the home-zone management server 107 to the home-zone management server 107 through an external communication device (ENIP) To the zone management server 107. Accordingly, the home-zone management server 107 tabulates the received data and uses it to determine whether the home-zone area is updated or not. When the home-zone area is updated as described above, it is immediately transferred to the HLR 106 and configured to be applied.

FIG. 2 is a control flowchart for updating a home-zone area in a home-zone management server according to a preferred embodiment of the present invention. Hereinafter, a process for updating a home-zone area in real time according to the present invention will be described in detail with reference to FIG. 1 and FIG.

The home-zone management server 107 maintains the standby state in step 200. [ This standby state is a state of waiting for the initial data reception of the home-zone area from the operator computer 109 or awaiting reception of the call record table for home-zone update from the mobile communication switching system. The home-zone management server 107 maintains the standby state as in step 200 and checks whether subscriber call information is received from the mobile communication switching system 105. [ If the subscriber call information is received, the home-zone management server 107 proceeds to step 204. Otherwise, the home-zone management server 107 maintains the standby state of step 200. [

The home-zone management server 107 performs call statistics on the similar data among the received data when the call log table is received, that is, when subscriber call information is received. That is, the number of times of receipt or the like is checked by using information of a similar call, and classified by each test result. The home-zone management server 107 proceeds to step 206 and performs filtering using the distance and the angle. Such calculation of the distance can be performed by calculating the separation distance from the position of the groove. To calculate the separation distance (D), the distance (D) between the groove and the base station must first be calculated. The distance D between the groove and the base station can be obtained using Equation (1) below.

In the Equation (1), the coordinates of the groove are (x _home , y _home ), the coordinates of the base station are (x _bts , y _bts ), the coordinates of the groove and the coordinates of the base station are The distance in seconds according to latitude and longitude. D _lat is the distance along the latitude, and d _lon is the distance along the longitude. The unit of the distance is the same as the location of the base station and the groove, and the distance is exemplified in the description of the <Table 1>.

Then, the calculation of the separation distance [Delta] D using the distance (D) between the base station and the mobile communication terminal can be calculated using Equation (2).

In Equation (2), c is the speed of light, and T _chip is the time of one chip, which is usually 0.8138 [㎲]. Also, RTD _measured in Equation (2) is the measured value of the RTD for the home-zone confirmed call, and SDelay is the delay time of the system. In addition, the RTD is processed in 1/8 chip units, so a matching value is needed. Further, the separation distance? D reads and processes the angles Svc_ran1, Svc_ran2, and Svc_ran3 for which service is performed in each sector defined value, from the database. An example of a value of an alpha sector among these angles is shown in Equation (3) below.

Since the RTD of call_info2 in Equation (3) is 1/8 chip unit, the whole is organized in 1/8 chip unit, and the summarized value is rearranged to the left side in Equation (3) It is organized.

In Equation (4), a call satisfying the above RTD value or satisfying the RTD value below becomes an invalid call. That is, the location where the home-zone confirmation call is performed is checked to be out of the area of the home-zone. A method of calculating the information of the sector will be described with reference to FIG.

FIG. 3 is a diagram showing coordinates of a position between a base station and a groove for explaining calculation of sector information according to the present invention. As shown in FIG. 3, the angle? Between the base station and the groove is calculated. The calculation of the angle can be calculated using an arc tangent value. This can be expressed as Equation (5) below.

If the θ value calculated in Equation (5) exists within the error range, that is, within ± the range of Ang_ran1, Ang_ran2, and Ang_ran3 values from the Angle1, Angle2, and Angle3 values corresponding to each sector, And if not, it is calculated that it does not exist in the corresponding sector. The calculated values are used to filter the home-zone validated calls. In the process of calculating the distance, the calculation of the exception is performed as well. In this case, when the distance between the subscriber and the base station is less than exp_ran, the base station does not calculate the angle of interest for the base station. In this case, the distance is calculated as in Equation (1), and the exception can be calculated together.

Then, the home-zone management server 107 proceeds to step 208 and performs call analysis. That is, the home = zone confirmation call analyzes the information of the received call. In step 210, the home-zone list is updated using the filtered value after filtering the distance when the home-zone confirmation call is received according to the method described above. That is, the information of the home-zone list information table as shown in Table 3 is updated. Then, the home-zone management server 107 transmits the updated information to the HLR 106 in step 212, and immediately applies the updated information to the HLR 106. [

As described above, when the mobile communication system has a home-zone area, there is an advantage that the information area can be updated in real time with respect to the home-zone area. In addition, there is an advantage that the home-zone area can be updated more accurately.

Claims (6)

A method for updating a home-zone database in real time upon receipt of a home-zone call in a mobile communication system, A first step of calculating values to be filtered using the home location information of the originator of the received home-zone confirmation call and the location information of the base station when the home-zone confirmation call information is received; A second step of filtering only call information within an allowable range from the position of the groove after the values to be filtered are calculated; And updating the home-zone list using the filtered value and updating the updated home-zone list to the home location register of the mobile communication system. The method according to claim 1, A distance calculation step of calculating a distance using coordinates between the home and the base station, And a separation distance calculation step of calculating a separation distance between the base station and the mobile communication terminal. 3. The method of claim 2, And determining a sector of the base station by calculating an angle between the home and the base station. 2. The method according to claim 1, A first step of filtering by the calculated distance and the calculated separation distance; And a second step of extracting only a signal in which a predetermined signal transmission / reception time between the mobile communication terminal and the base station is within a preset range. 5. The method according to claim 1 or 4, And updating the home-zone database using all the data received from the mobile communication terminal when the distance between the home-base station and the base station is less than a predetermined distance. A method for updating a database. A method for updating a home-zone database in real time upon receipt of a home-zone call in a mobile communication system, A first step of, if a home-zone confirmation call is received, reading values to be filtered and calculated in accordance with home location information of a caller of the received home- A second step of filtering only call information within an allowable range from the position of the home using the read values to be filtered; And updating the home-zone list using the filtered value and updating the updated home-zone list to the home location register of the mobile communication system.