KR20040016726A - Apparatus and method for detecting terminal of mobile telephone - Google Patents

Abstract

PURPOSE: An apparatus and a method for detecting the loss of a mobile phone terminal are provided to detect the loss or failure of the mobile phone terminal when a traffic is sharply reduced by analyzing the traffic of a subscriber by a day unit or a week unit. CONSTITUTION: A plurality of BTSs(Base station Transceiver Subsystems) communicate with a mobile phone terminal. A call information DB(85) stores a call history and a charge institution between the mobile phone terminal and the BTSs. A call calculating unit having a day-unit call completion number calculating unit(72) and a week-unit call completion number calculating unit(74) calculates a call number of the mobile phone terminal from the call history of the call information DB(85). A judging unit having a terminal loss judging unit(76) and a terminal loss last judging unit(78) judges whether the mobile phone terminal is lost according to the call number from the call calculating unit.

Description

Loss detection apparatus and method of mobile phone terminal {APPARATUS AND METHOD FOR DETECTING TERMINAL OF MOBILE TELEPHONE}

The present invention relates to a mobile communication system, and more particularly, to an apparatus and method for detecting a loss of a mobile phone terminal, which can determine whether a user's terminal is lost or broken by analyzing a user's call trend.

In general, a mobile communication system consists of a mobile telephone, a base transceiver station, and a mobile telephone switching office. Herein, the mobile phone terminal transmits and receives voice and data signals with the mobile phone base station, exchanges channels, and performs location registration. The mobile phone base station performs baseband signal processing, wired / wireless conversion and transmission and reception of wireless signals, controls mobile phone terminals, monitors call quality, and connects a mobile telephone exchange station and a terminal. The mobile telephone base station is installed at an optimal location according to the number of subscribers distributed in the service area and the quality of service required by the wireless communication network in an area with high traffic density, and according to the number of subscribers that the base station system can accommodate. The mobile switching center performs the switching access of the mobile telephone network, connects with the public switched telephone network, and performs the central control, control and monitoring and call processing of all base stations, and manages billing information, subscriber information and location registration information. .

Referring to FIG. 1, the conventional mobile communication system includes a mobile switching center (MSC) 30 that connects the mobile telephone terminal 10 and the mobile telephone terminal 10 to a public switching telephone network (PSTN). ).

The user uses the mobile telephone terminal 10 for the purpose of a telephone call, a telephone call with another mobile telephone, or a data transmission.

The mobile phone terminal 10 transmits the unique number stored in the terminal and the telephone number dialed by the user to the base station 20 through a keypad provided therein for making a call.

The mobile switching center 30 includes a base station transceiver subsystem (BTS) 20 for wirelessly bidirectionally communicating with the mobile phone terminal 10, and a base station controller (BSC) for controlling the base station 20. And a mobile switching center (MSC) 33 for connecting the base station 20 to a public switched telephone network (PSTN).

The base station 20 transmits a radio frequency signal received from the mobile phone terminal 10 to the base station controller 25, converts the signal received from the base station controller 25 into a high frequency signal and transmits the signal to the mobile phone terminal 10. do. To this end, the base station 20 provides a mobile communication service to the mobile phone terminal 10 through an air interface. The base station 20 has a limited service radius due to the propagation loss of radio waves to a place where direct wireless communication with the user mobile phone terminal 10 is performed. Accordingly, in order to provide a nationwide service, mobile communication service companies currently install and operate a large number of base stations 20. In addition, the base station 20 is erecting a pylon on a high mountain in order to increase the service radius, or installed a pylon on the roof of a high building.

The base station controller 25 relays the communication between the base station 20 and the mobile switching center 33. In addition, the base station controller 25 determines whether to initiate a handover according to the received strength or signal power of the signal received by the base station 20. The base station controller 25 is managed by a base station management system (BSM) not shown. That is, the base station management system operates and manages a plurality of base station controllers 25.

The mobile switch 33 is connected to a general telephone switching network (PSTN) to relay communication between a mobile subscriber and a wired subscriber. In addition, the mobile switch 33 obtains the information of the mobile telephone terminal 10 from the customer information database 35 which stores the information of the mobile telephone terminal 10 (subscriber) and processes the call of the subscriber.

In such a conventional mobile communication system, if a user enters a phone number through a keypad in a mobile phone terminal 10 and presses a call start button to make a call, a unique number stored in the terminal 10 and a phone number dialed by a user are base stations together. 20 is passed. Accordingly, the base station 20 receives the unique number and the telephone number transmitted from the mobile telephone terminal 10, and confirms whether the received unique number and the like are registered numbers. Then, the base station 20 assigns a voice channel to the mobile phone terminal 10 if the received unique number and the like are permitted registration numbers. Accordingly, the user makes a call with the called party through the assigned voice channel.

As described above, in the conventional mobile communication system, a user may experience a problem such as loss or failure of the mobile phone terminal 10. Problems like this can only be seen through complaints from users. As a result, the credibility of the operator is lowered, which in turn causes a problem in securing the customer.

Accordingly, an object of the present invention is to provide a device and method for detecting a loss of a mobile phone terminal, which can analyze a user's call trend and determine whether the user's terminal is lost or broken.

1 is a block diagram showing a conventional mobile communication system.

Figure 2 is a block diagram showing a loss detection apparatus of a mobile phone terminal according to an embodiment of the present invention.

3 is a block diagram illustrating a terminal loss detection unit illustrated in FIG. 2.

Figure 4 is a flow chart illustrating a step-by-step detection method of the mobile phone terminal according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10, 40: mobile phone terminal 20, 50: base station

25, 55: base station controller 30, 60: mobile switching center

35, 65: customer information database 70: terminal loss detection unit

72: daily currency completion number calculation unit 74: weekly currency completion number calculation unit

76: terminal loss determination unit 78: terminal loss final determination unit

85: call information database

In order to achieve the above object, a loss detecting apparatus for a mobile phone terminal according to an embodiment of the present invention includes a mobile phone terminal, a plurality of base stations wirelessly communicating with the mobile phone terminal, and between the mobile phone terminal and the base stations. A database storing a call history, an opening and a charge system, a call calculator for calculating the number of calls of the mobile phone terminal from the call history of the database, and the mobile phone terminal according to the number of calls from the call calculator. And a judging section for judging whether or not there is a loss.

In the loss detection apparatus of the mobile phone terminal, the call calculator calculates an average number of calls of all subscribers of the mobile phone terminal, and calculates the number of calls of the mobile phone terminal on a daily basis and a weekly basis. In addition, a second calculation unit for calculating the total pole total and the total amount of alcohol for the weekly currency is provided.

In the loss detecting apparatus of the mobile phone terminal, the determining unit is a case where the daily call number is non-currency for at least two consecutive days or when the total telephone sum of the mobile phone terminal and the weekly call count is divided by the sum of the week and the sum or more. A first determining unit determining whether the mobile telephone terminal is lost first and a second determining whether the mobile telephone terminal is lost by checking the opening of the mobile telephone terminals determined as the primary; And a third judging unit which finally determines the loss of the mobile telephone terminal in accordance with a specific fee system of the mobile telephone terminals determined to be secondary.

In the determining unit of the loss detecting apparatus of the mobile phone terminal, the first judging unit loses the mobile phone terminal when the call is lost for at least two days in a row when the number of daily calls is greater than the average number of calls of all the subscribers. If the number of calls per day is less than the average number of calls of all the subscribers, the mobile telephone terminal is determined to be lost when there are no calls for at least four consecutive days.

Loss detection method of a mobile phone terminal according to an embodiment of the present invention in a mobile communication system having a mobile phone terminal and a plurality of base stations in wireless communication with the mobile phone terminal, call history and opening between the mobile phone terminal and base stations Storing a status and a fare system in a database, calculating the number of calls of the mobile phone terminal in the call history, and determining whether the mobile phone terminal is lost according to the calculated number of calls. .

The step of calculating the number of calls in the method of detecting the loss of the mobile phone terminal includes calculating an average number of calls of all subscribers of the mobile phone terminal, and calculating the number of calls of the mobile phone terminal on a daily basis and a weekly basis. And calculating the total shares and the total amount of shares for the weekly currency.

In the method of detecting the loss of the mobile phone terminal, the step of determining whether the mobile phone terminal is lost may be a non-call for at least two consecutive days or the total telephone numbers of the mobile phone terminal and the weekly number of calls. Determining whether the mobile telephone terminal is lost first if the sum is greater than or equal to the set value; and checking whether the mobile telephone terminals have been opened by checking whether the mobile telephone terminal has been determined as primary. And determining a loss of the mobile telephone terminal according to whether a specific plan among the mobile telephone terminals determined to be secondary is used.

In the loss detection method of the mobile phone terminal, the first step of determining whether the mobile phone terminal is lost is, when the number of daily calls is greater than the average number of calls of all the subscribers, if the call is at least two consecutive days. The mobile telephone terminal is determined to be lost, and when the number of daily calls is less than the average number of all the subscribers, the mobile telephone terminal is determined to be lost when the call is not made for at least four consecutive days.

Other objects and features of the present invention in addition to the above objects will be apparent from the description of the embodiments with reference to the accompanying drawings.

With reference to Figures 2 to 4 will be described a preferred embodiment of the present invention.

Referring to FIG. 2, the apparatus for detecting a failure of a base station according to an exemplary embodiment of the present invention includes a mobile switching center (PSTN) connecting a mobile telephone terminal 40 and a mobile telephone terminal 40 to a public switching telephone network (PSTN). Switching Center: Terminal loss detection unit 70 for analyzing the call trend of the MSC (60) and the mobile phone terminal 40 to detect the loss or failure of the mobile phone terminal (40).

The user uses the mobile telephone terminal 40 for the purpose of a telephone call, a telephone call with another mobile telephone, or a data transmission.

The mobile phone terminal 40 transmits the unique number stored in the terminal and the telephone number dialed by the user to the base station 50 through a keypad provided therein for making a call.

The mobile switching center 60 includes a base station transceiver subsystem (BTS) 50 for wireless two-way communication with the mobile phone terminal 40 and a base station controller (BSC) for controlling the base station 50. And the call history of the Mobile Switching Center (MSC) 63 and the mobile phone terminal 40 for connecting the base station 50 to the public switched telephone network (PSTN). A failure base station detection device 70 for detecting a failure of the base station 50 is provided.

The base station 50 transmits a radio frequency signal received from the mobile phone terminal 40 to the base station controller 55, converts the signal received from the base station controller 55 into a high frequency signal, and sends it to the mobile phone terminal 40. do. To this end, the base station 50 provides a mobile communication service to the mobile phone terminal 40 through an air interface. The base station 50 has a limited service radius due to the propagation loss of radio waves to the place where the wireless communication with the user mobile phone terminal 40 is performed. Accordingly, in order to provide a nationwide service, mobile communication service companies currently install and operate a large number of base stations 50. In addition, the base station 50 is erecting a tower in a high mountain in order to increase the service radius, or is installed and operated on the roof of a high building.

The base station controller 55 relays the communication between the base station 50 and the mobile exchange 63. In addition, the base station controller 55 determines whether to initiate a handover according to the received strength or signal power of the signal received by the base station 50. The base station controller 55 is managed by a base station management system (base station manager: BSM) not shown. That is, the base station management system operates and manages a plurality of base station controllers 55.

The mobile switch 63 is connected to a general telephone switching network (PSTN) to relay communication between the mobile subscriber and the wired subscriber. The mobile switch 63 also obtains the information of the mobile telephone terminal 40 from the customer information database 65, which stores the information of the mobile telephone terminal 40 (subscriber), and processes the subscriber's call.

In the base station failure detection apparatus according to the embodiment of the present invention, if a user enters a phone number through a keypad in the mobile phone terminal 40 and presses a call start button to make a call, a unique number and a user stored in the terminal 40 The dialed telephone number is transmitted to the base station 50 together. Accordingly, the base station 50 receives the unique number and the telephone number transmitted from the mobile telephone terminal 40, and confirms whether the received unique number and the like are registered numbers. Then, the base station 50 allocates a voice channel to the mobile phone terminal 40 if the received unique number is a licensed registration number. Accordingly, the subscriber makes a call with the called party through the assigned voice channel.

As such, the subscriber may exchange voice and data with the called party through the base station 50 using the mobile telephone terminal 40. At this time, the call history of the mobile phone terminal 40 used by the subscriber is stored in the call information database 85.

In the call information database 85, call history by subscribers such as the completion number, attempts, and usage time information of the caller and the called party successfully achieving the call purpose (hereinafter, referred to as "call completion number"). Is stored. The call completion number of the user stored in the call information database 85 is used as an analysis tool for detecting a loss or failure of the user's mobile phone terminal 40.

To this end, the terminal loss detection unit 70 detects whether the terminal is lost or broken through statistics of the call completion number of the subscriber from the call information database 85 on a daily and weekly basis. In detail, the terminal loss detection unit 70 includes a daily call completion number calculation unit 72 that calculates the number of completed calls on a daily basis, and a weekly currency completion number calculation unit that calculates the number of daily calls completed on a weekly basis ( 74), the terminal loss determination unit 76 for determining whether the terminal is lost or not and the mobile telephone terminal 40 determined as primary by comparing the number of completed calls calculated on a daily or week basis with the set reference value. Compared with the terminal is provided with a terminal loss final determination unit 78 to determine the loss or fixation.

The daily call completion number calculating unit 72 uses the call completion numbers from the call information database 85 to display the subscribers who are 200% or less of the average completion number of all subscribers as shown in Table 1, and the total as shown in Table 2. It is calculated by dividing the number of subscribers with 200% or more of the average number of subscribers on a daily basis.

Of average completions 200% less than Date 04 05 06 07 08 09 10 11 12 13 14 15 16 end mouth character time number 21XX-XXXX 2 One 0 0 2 5 One 2 One 2 3 0 2 22XX-XXXX 2 One 4 2 One 0 2 One 2 2 0 0 0 23XX-XXXX 2 One 3 0 2 5 One One One 0 0 2 0 24XX-XXXX 3 7 5 4 3 4 0 4 2 4 6 2 5 25XX-XXXX 2 3 4 9 2 6 4 2 5 8 0 0 0 26XX-XXXX 3 4 5 4 7 6 3 4 2 One 0 0 One

Of average completions More than 200% Date 04 05 06 07 08 09 10 11 12 13 14 15 16 end mouth character time number 27XX-XXXX 12 3 15 32 11 32 34 54 32 10 21 2 2 28XX-XXXX 23 43 54 23 64 53 65 21 45 32 33 21 0 29XX-XXXX 21 34 32 5 22 28 12 26 8 3 2 7 3

As shown in Table 3 and Table 4, the weekly call completion number calculating unit 74 uses the call completion number of the subscriber which is 200% or less of the average completion number of all subscribers from the daily call completion number calculating unit 72 to perform the whole week. And calculating the number of completed calls of the week, and calculating the number of completed calls of the previous week and this week using the daily completed calls of the subscribers, which are 200% or more of the average completed numbers of all the subscribers.

Below 200% of average completions Jeonju Gold week end mouth character time number 21XX-XXXX 11 10 22XX-XXXX 12 5 23XX-XXXX 14 4 24XX-XXXX 26 23 25XX-XXXX 30 15 26XX-XXXX 32 8

200% average completions Jeonju Gold week Subscriber number 27XX-XXXX 139 121 28XX-XXXX 325 152 29XX-XXXX 154 49

The terminal loss determination unit 76 divides the total pole counts for the subscribers from the weekly call completion count calculation unit 74 with 200% or less of the average completion counts and the 200% or more subscribers to the total of the following week, ÷. If it is the same or less, it is determined that the primary management target, that is, the terminal is lost or malfunctioned.

Alternatively, the terminal loss determination unit 76 detects whether or not the number of completed calls is zero for the last two consecutive days when the average number of completed calls from the weekly completed call counting unit 74 is 200% or less. If the average number of completed calls from the unit call completion number calculation unit 74 is 200% or more, the number of completed calls is detected as a zero call during the last four consecutive days, and is determined as a loss or failure of the primary management target, that is, the terminal. do. This is more than 200% of the average number of complete subscribers can be determined that there is a loss or failure of the mobile phone terminal when not using the high dependence of the mobile phone terminal 40. For this reason, since 200% or more of the average number of subscribers needs a quick response, the terminal loss determining unit 76 detects whether the number of consecutive call completions is zero (0) for each subscriber. On the other hand, since 200% or less of the average number of subscribers does not have a trial call without any special reason, the terminal loss determining unit 76 detects whether the number of completed call numbers for the last four consecutive days is zero (0) for each subscriber.

Therefore, the terminal loss determination unit 76 is 22XX-XXXX, 23XX-XXXX, 25XX-XXXX, 26XX-XXXX, 28XX-XXXX, in which the difference between the pole total and the AA total among the subscriber numbers shown in Tables 1 to 4 is severe. In this case, the subscriber number of 29XX-XXXX is selected as the primary management target.

The subscriber number determined as the primary management object by the terminal loss determination unit 76 is determined by the terminal loss final determination unit 78 as the last terminal loss or failure. In detail, the terminal loss final determination unit 78 compares the subscriber information from the customer information database 65 with the subscriber number determined as the primary management object to determine the terminal loss or failure. Here, the subscriber information from the customer information database 65 is subscriber terminal opening and termination information and subscriber fee system information.

Accordingly, the terminal loss final determination unit 78 is a secondary degree by extracting only the subscriber number that is already open from the subscriber number determined as the primary management target because the degree of change of the subscriber's call volume information is severe in relation to opening and closing. Judging by management. Then, the terminal loss final determination unit 78 compares the subscriber number that is the secondary management target and its fee system. This is because the call volume of the subscriber is clearly changed according to the subscriber's rate system. For example, a plan that uses only a certain amount of monthly payments reduces the amount of money at the end of each month, and also decreases the amount of money at the end of each month in the case of prepaid cards. Accordingly, the terminal loss final determination unit 78 excludes the subscriber number corresponding to the specific plan from the subscriber number classified as the secondary management object from the management object, and the subscriber number which is not the terminal is finally classified as the terminal lost or broken state. .

Referring to FIG. 4, according to an embodiment of the present disclosure, a method of detecting a loss of a mobile phone terminal first calculates average call completion numbers of all subscribers from call information of subscriber numbers stored in a call information database, and calls daily by subscriber number. The number of completed calls is calculated and the number of weekly calls completed by subscriber number is calculated. (Step S1)

Then, it is checked whether the daily call completion number of the calculated subscriber number is more than twice the average call volume of all users. (S2 step)

If the daily call completion number of the subscriber number is more than twice the average call volume of all users, the total number of completed phone calls in the subscriber number is equal to 3 divided by the total number of calls completed this week. Classify and select as the management target. In addition, even if the number of consecutive zero (0) calls completed in the last two days, the terminal is classified as a lost or broken state and is selected as the management target. (S3, S4 step)

At this time, if the calculated daily call completion number of the subscriber number is more than twice the average call volume of all users, if the total number of completed phone calls of the subscriber number is less than 3 by dividing the completed call total number of phone numbers, the terminal is classified as normal. do. In addition, the terminal is classified as a normal state even if the number of consecutive zero (0) calls has not been completed in the last two days. (S5 step)

On the other hand, if the calculated daily call completion number of the subscriber number is less than twice the average call volume of all users, the total number of completed phone calls in the subscriber number divided by the total number of calls completed this week is equal to or greater than 3, and the terminal is lost or broken. Classify as a state and select as the management target. In addition, even if the number of consecutive zero (0) calls completed in the last 4 days, the terminal is classified as a lost or broken state and selected as the management target. (S6, S5 step)

At this time, if the calculated daily call completion number of the subscriber number is less than twice the average call volume of all users, if the total number of completed phone calls of the subscriber number is less than 3 by dividing the total call completion numbers this week, the terminal is classified as normal. do. In addition, the terminal is classified as a normal state even if the number of consecutive zero (0) calls has not been completed in the last 4 days. (S5 step)

Then, the current opening state and termination state are checked for the subscriber number selected as the primary management target. (Step S7) That is, only the currently open subscriber number is selected as the secondary management target among the subscriber numbers selected as the primary management target, and the subscriber number currently in the terminal termination state is excluded from the primary management target. (S7, S8 step)

Then, it is checked whether a specific plan is used for the subscriber number selected as the secondary management target. (Step S9) That is, the subscriber number which does not use a specific plan among the subscriber numbers selected as the secondary management targets is classified as a terminal lost or broken state. (Step S10) Meanwhile, the subscriber number using the specific plan among the subscriber numbers selected as the secondary management targets is excluded from the secondary management targets and finally classified into a terminal normal state. (S11 step)

As described above, the apparatus and method for detecting the loss of a mobile phone terminal according to an embodiment of the present invention analyzes the subscriber's call volume on a daily basis and a weekly basis, and considers the terminal lost or malfunctioned when there is a sudden decrease in the call volume. Done. Accordingly, by detecting a problem such as the terminal loss of the subscriber in advance and quickly responding, it can have a positive effect on customer acquisition.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (8)

Mobile phone terminal, A plurality of base stations wirelessly communicating with the mobile telephone terminal; A database for storing call history, opening status, and charge system between the mobile phone terminal and the base station; A call calculator for calculating the number of calls of the mobile phone terminal from the call history of the database; And a determination unit for determining whether the mobile telephone terminal is lost according to the number of calls from the call calculation unit. The method of claim 1, The currency calculator, A first calculating unit calculating an average number of calls of all subscribers of the mobile phone terminal; And a second calculation unit for calculating the number of calls of the mobile phone terminal on a daily basis and a weekly basis, and for calculating the total telephone numbers and the total amount of gold for the number of weekly telephone calls. The method of claim 2, The determination unit, Determining whether the mobile telephone is lost first if the daily call number is at least two consecutive days or when the daily telephone number is more than a value set by dividing the total number of telephone calls between the mobile telephone terminal and the weekly telephone number by the total sum. A first judging unit, A second determination unit which determines whether the mobile telephone terminal is lost by secondly checking the opening of the mobile telephone terminals determined as the primary; And a third determination unit for finally determining a loss of the mobile telephone terminal according to the specific charge system of the mobile telephone terminals determined as the second one. The method of claim 3, wherein The first determination unit, When the number of daily calls is greater than the average number of calls of all the subscribers, it is determined that the mobile phone terminal is lost when there are no calls for at least two consecutive days, And when the number of daily calls is less than the average number of all subscribers, determining that the mobile phone terminal is lost when the call is unsuccessful for at least four consecutive days. A mobile communication system having a mobile telephone terminal and a plurality of base stations wirelessly communicating with the mobile telephone terminal, Storing a call history, an opening and a fare system between the mobile terminal and the base station in a database; Calculating the number of calls of the mobile phone terminal in the call history; And determining whether the mobile telephone terminal is lost based on the calculated number of calls. The method of claim 5, wherein The step of calculating the number of calls, Calculating an average number of calls of all subscribers of the mobile phone terminal; Computing the number of calls of the mobile phone terminal on a daily basis and weekly basis, and calculating the total telephone sum and the total sum of money for the weekly number of calls. The method of claim 6, Determining whether or not the mobile phone terminal is lost, Determining whether the mobile telephone is lost first if the daily call number is at least two consecutive days or when the daily telephone number is more than a value set by dividing the total number of telephone calls between the mobile telephone terminal and the weekly telephone number by the total sum. Steps, Confirming whether the mobile telephone terminal is lost by checking whether the mobile telephone terminals are opened, and determining whether the mobile telephone terminal is lost; And finally determining a loss of the mobile telephone terminal according to whether a specific rate plan is used among the mobile telephone terminals determined as the second ones. The method of claim 7, wherein The primary step of determining whether the mobile phone terminal is lost, When the number of daily calls is greater than the average number of calls of all the subscribers, it is determined that the mobile phone terminal is lost when there are no calls for at least two consecutive days, And when the number of calls per day is less than the average number of calls of all the subscribers, determining that the mobile phone terminal is lost when the call is unsuccessful for at least four consecutive days.