JPH04335748A - Tracing system for subscriber making malicious call - Google Patents

Abstract

PURPOSE:To display the position of a malicious call transmission mobile set continuously with respect to the tracing system for subscriber making malicious call in a mobile body communication network. CONSTITUTION:Each mobile body exchange 1 is provided with a malicious caller registration means 100 registering malicious call transmission information to a mobile set making a malicious call and a redial detection means 200 analyzing whether or not the malicious call transmission information is registered in the transmission mobile set. Moreover, the exchange 1 is provided with a malicious caller registration means and a position revision detection means 300 analyzing whether or not the malicious call transmission information is registered in the mobile set making a request of position registration in the non-talking state. Furthermore, the exchange 1 is provided with a malicious call registration means 400 registering the malicious call information to a busy channel and a malicious call registration revision means 500 revising the registration of the malicious call information attended with the busy channel changeover. The position of the malicious call transmission mobile set at its redialing, at position registration and at changeover of the busy channel is displayed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for tracking malicious call subscribers in a mobile communication network. The malicious call subscriber tracking function, which tracks and captures the originating subscriber of malicious calls arriving at a specific subscriber, is also considered important in general communication networks.
Particularly in mobile communication networks, since the originating subscriber is a mobile device that moves freely within the communication network, it is even more important to identify the location of the originating subscriber.

0002

2. Description of the Related Art FIG. 8 is a diagram showing an example of a mobile communication network to which the present invention is applied. In FIG. 8, each mobile switching system (AMS) 1 (individual mobile switching systems (AMS) are referred to as 11, 12, etc., hereinafter the same) constituting a mobile communication network is connected to a plurality of radio network control stations (MCS). 2, each is connected to a plurality of wireless base stations (MBS) 3,
Calls to and from mobile stations (MSS) 4 located within the communication range of each wireless base station (MBS) 3 are exchanged.

[0003] Location information (indicated by the radio network control station number and radio base station number) indicating the communication area in which each mobile station (MSS) 4 currently exists is a transmission translation indicating the attributes of the mobile station (MSS) 4. each mobile device (
Mobile switching system (A) defined in accordance with MSS) 4
MS) 1 [home memory station (abbreviated as HM station)], and as the mobile station (MSS) 4 moves between communication areas, the registered position information is updated.

In a conventional mobile communication network, for example, when a call that arrives at a mobile station (MSS) 41 located within the communication range of a wireless base station (MBS) 31 is tracked and captured as a malicious call, the caller is tracked and captured. , the mobile switching system (AMS) which is the home memory station (HM station) of the mobile station (MSS) 41
(for example, 11), by inputting a command specified for registering malicious call reception information, the incoming translated word of the mobile station (MSS) 41 owned by the mobile switching system (AMS) 11 Malicious call incoming information is registered in .

[0005] In such a state, any mobile station (MSS) (
For example, when the mobile station (MSS) 41 makes a call from the mobile station (MSS) 41, the mobile switching system (AMS) 11 that detects the call from the mobile station (MSS) 42
The incoming translated word is extracted from the own mobile switching system (AMS) 11, which is the home memory station (HM station), and analyzed, and when it is determined that the malicious call incoming information has been registered, the mobile device (
MSS) 42 considers the incoming call to be a malicious call, and uses the subscriber number of the terminating mobile station (MSS) 41 and the originating mobile station (MSS) 41.
S) A malicious call message containing the subscriber number and location information of 42 [i.e., the radio network controller number of the radio network controller (MCS) 21 and the radio base station number of the radio base station (MBS) 32] is transmitted to the mobile switching system. (AMS) 11, and also sounds an alarm to notify the maintenance personnel of the output of the malicious call message.

[0006] A maintenance person who hears the alarm sounds and analyzes the malicious call message output to a console or the like and determines that the mobile station (MSS) 42 that made the malicious call is within the communication range of the wireless base station (MBS) 32. We judge that it exists and report it to the appropriate authorities.

However, the mobile station (MSS) 42 is
While talking to SS) 41, wireless base station (MBS) 3
Even if the mobile station (MSS) 42 moves from the communication area of 2 to the communication area of the wireless base station (MBS) 33 and further to the communication area of the wireless base station (MBS) 35, the mobile station (MSS) 42 does not receive malicious calls in the mobile communication network. Since only the location information at the time of transmission is output as a malicious call message, it is impossible to capture the mobile station (MSS) 42.

Furthermore, the mobile station (MSS) 42 is a mobile station (M
After ending the call with SS) 41, the mobile station (MSS) 4
If the mobile station (MSS) 42 makes a call to a destination other than 1, or moves without making a call at all, since none of the mobile switching systems (AMS) 1 can output malicious call messages as described above, the mobile station (MSS) 42
It will be impossible to track and capture.

[0009]

[Problems to be Solved by the Invention] As is clear from the above explanation, in a conventional mobile communication network, it is difficult to determine whether malicious call reception information is received by the originating mobile station (MSS) 41 at the time the call arrives at the registered mobile station (MSS) 41. )42's location information was output, and the subsequent destination of the originating mobile station (MSS) 42 was not displayed, so the originating mobile station (MSS) of the malicious call
42 was almost impossible to track or capture.

SUMMARY OF THE INVENTION An object of the present invention is to enable display of the location of a mobile station that originates a malicious call as continuously as possible.

[0011]

Means for Solving the Problems FIG. 1 is a diagram showing the principle of the present invention. In FIG. 1, reference numeral 1 denotes a mobile switching center constituting a mobile communication network to which the present invention is applied.

Reference numeral 100 denotes malicious caller registration means provided in the mobile switching system 1 according to the present invention (claim 1 or 2). Reference numeral 200 denotes a re-transmission detection means provided in the mobile exchange 1 according to the present invention (claim 1).

Reference numeral 300 denotes a position change detection means provided in the mobile exchange 1 according to the present invention (claim 2). 40
0 is a malicious call registration means provided in the mobile exchange 1 according to the present invention (claim 3).

Reference numeral 500 denotes a malicious call registration change means provided in the mobile exchange 1 according to the present invention (claim 3).

[0015]

[Operation] Malicious caller registration means 100 registers malicious call origination information indicating that the mobile device is the originator of the malicious call, corresponding to the mobile device that has originated the incoming call to the registered mobile device.

When the re-call detection means 200 detects a call from an arbitrary mobile device, it analyzes whether malicious call origination information has been registered for the originating mobile device. The mobile switching system 1 provided with the malicious caller registration means 100 and the re-call detection means 200 detects the originating mobile station when the re-call detection means 200 identifies that malicious call origination information has been registered corresponding to the originating mobile station. Display the location of.

When the location change detection means 300 receives a location registration request associated with movement sent from any mobile device in a no-call state, the location change detection means 300 detects the malicious call in response to the location registration requesting mobile device. Analyze whether the transmitted information is registered or not.

In the mobile switching system 1 provided with the malicious caller registration means 100 and the location change detection means 300, the location change detection means 300 identifies that malicious call origination information has been registered for the mobile device that is the source of the location registration request. In this case, the location of the mobile device that made the location registration request is displayed.

Malicious call registration means 400 registers malicious call information indicating that the call is a malicious call, corresponding to the channel being used by the malicious call. When the malicious call registration change unit 500 changes the malicious call information registered by the malicious call registration unit 400 due to the movement of the originating mobile device, the malicious call registration change unit 500 changes the registered malicious call information corresponding to the channel before switching. The registration is changed according to the channel after switching.

The mobile exchange 1 provided with the malicious call registration means 400 and the malicious call registration change means 500 displays the location of the originating mobile device that is using the channel for which the malicious call registration change means 500 has changed the registration of malicious call information. do.

Therefore, according to the present invention (claim 1), when a mobile station that has terminated a malicious call to a specific mobile station makes a re-transmission, the current location of the originating mobile station is displayed, and the present location of the calling mobile station is displayed. According to the invention (claim 2), even if a mobile device that terminates a malicious call to a specific mobile device moves without making a call, the destination location of the originating mobile device is displayed. According to the invention (claim 3), even if the mobile device that originated the malicious call moves during a call, the location of the destination mobile device that originated the malicious call is displayed, making it possible to track and trace the mobile device that originated the malicious call. It becomes much easier to catch.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram showing a mobile switching system according to an embodiment of the present invention, FIG. 3 is a diagram showing an example of a malicious call originator registration process in FIG. 2, and FIG. 4 is a diagram showing a channel switching preparation signal reception in FIG. 2. FIG. 5 is a diagram showing an example of the channel switching address signal reception process in FIG. 2; FIG. 6 is a diagram showing an example of the malicious call originator display process in FIG. 2; FIG. 7 is a diagram showing an example of the location registration signal receiving process in FIG. 2. Note that the same reference numerals indicate the same objects throughout the figures. Furthermore, the target mobile communication network is as shown in FIG.

In FIG. 2, a malicious sender registration section 122 is used as the malicious sender registration means 100 in FIG. 1, a malicious retransmission processing section 123 is used as the retransmission detection means 200 in FIG. Detection means 30
0, the malicious call registration unit 125 serves as the malicious call registration means 400 in FIG. 127
is provided within the central control unit 12.

Furthermore, each mobile switching system (AMS) 1 stores an originating translated word 141 and an incoming translated word 142 in its home memory (HM) 14 corresponding to each mobile station (MSS) 4 whose home memory station is its own station. 141 outgoing translated words
is provided with malicious call incoming information A, and malicious call originating information B is provided in the incoming translated word 142, but normally malicious call incoming information A and malicious call originating information B are both in an unregistered state (A, B="0").

In FIGS. 2 to 8, for example, a mobile station (MSS) located within the communication range of a wireless base station (MBS) 31
If a call arriving at 41 is considered a malicious call and the caller is to be tracked and captured, the mobile station (MSS) 41
The mobile switching center (AM) is the home memory station (HM station) of
Console 191 provided in S) (for example, 11)
From the mobile switching system (AMS) 11, by inputting a prescribed command for registering malicious call reception information.
The malicious call incoming information A provided in the incoming translated word 1421 of the mobile station (MSS) 41 held in the home memory (HM) 141 is set to the registered state (A="1").

In this state, the wireless base station (MBS) 32
When a mobile station (MSS) 42 located within the communication range of
is a wireless base station (MBS) 32 and a wireless network control station (
MCS) 21, and control signal transfer device (MDE) 1
A call from the mobile station (MSS) 42 is detected via the mobile station (MSS) 61 (step S1 in FIG. 3), and then the mobile station (MSS) 42
The terminating subscriber number DN41 of the terminating mobile station (MSS) 41 transmitted from the terminating mobile station (MSS) 41 is analyzed (step S2).
When the station M) identifies itself as the own station [mobile switching system (AMS) 11] (steps S3 and S4), the incoming call held corresponding to the terminating mobile station (MSS) 41 is stored from the home memory (HM) 141. When the translated word 1421 is extracted and analyzed (step S5) and it is identified that the malicious call incoming information A is set to the registered state (A="1") (step S6), the malicious caller registration unit 1221 is activated. to start.

The activated malicious caller registration unit 1221 analyzes the calling subscriber number DN 42 transmitted from the calling mobile station (MSS) 42 and registers the calling subscriber number DN 42 transmitted from the calling mobile station (MSS) 42.
When the home memory station (HM station) of No. 2 is identified as the own station [mobile switching system (AMS) 11] (step S7
), home memory (HM) 141 to the originating mobile device (M
SS) 42 Outgoing translation words held corresponding to 14
12 is extracted, and malicious call origination information B provided in the origination translation word 1412 is set to a registered state (B="1") (step S8).

Next, the central control device 121 activates the malicious call registration section 1251. The activated malicious call registration unit 1251 provides a trunk memory 1311 in the main storage device 13 corresponding to the communication channel [mobile trunk (MBT) 151] used for malicious calls, and registers malicious call information C. The state (C="1") is set (step S9).

Furthermore, the central controller 121 activates the malicious call display section 1211. Activated malicious call display unit 121
1 is the originating subscriber number DN 42 transmitted from the originating mobile station (MSS) 42, the terminating subscriber number DN 41, and the radio channel control station (MCS) 21 to which the communication channel is set.
radio network control station number DN21, and radio base station (M
A malicious call message M including the radio base station number DN32 of BS) 32 is created and output to the console 19, and an alarm is sounded to notify the maintenance personnel of the output of the malicious call message M (step S10).

[0030] Thereafter, the central control unit 121 uses a known procedure to send information from the originating mobile station (MSS) 42 to the terminating mobile station (MSS).
) 41 (step S11)
). Note that in step S3, the called subscriber receives a mobile device (M
SS) If it turns out not to be 4, or step S6
Terminating mobile station (MSS) 41 Terminating translation term 14
21 Malicious call incoming information A is unregistered (A = “0”)
), the central controller 121 sets the malicious call origination information B in the originating translated word 1412 of the originating mobile station (MSS) 42 to an unregistered state without activating the malicious originator registration unit 1221. As long as (B="0"),
In addition, the malicious call information C in the trunk memory 1311 is set to an unregistered state (C="0") without activating the malicious call registration unit 1251 (step S12).

During a call between the originating mobile station (MSS) 42 and the terminating mobile station (MSS) 41, the originating mobile station (MSS)
42 moves from the communication range of the radio base station (MBS) 32 to, for example, the communication range of the radio base station (MBS) 33, the radio network control station (MCS) 21 to which the communication channel currently in use is set is known. In this procedure, the radio channel control station (MC) where the newly used communication channel is set
After determining S) 22 and the radio base station (MBS) 33, the mobile switching system (AMS) 11 sends the originating subscriber number DN 42, the terminating subscriber number DN 41, and the switching destination radio network control station (MCS) 22. Wireless network control station number D
Channel switching preparation signal MXR including radio base station number DN33 of switching destination radio base station (MBS) 33
Communicate.

[0032] In the mobile switching system (AMS) 11, the central controller 121 is connected to the radio network control station (MCS) 2.
1 through the control signal transfer device (MDE) 161 (step S21 in FIG. 4), the information in the trunk memory 1311 corresponding to the communication channel currently in use is analyzed. (
Step S22), the malicious call information C is in the registered state (C=“1
”) is set (step S2).
3) Start up the malicious switching source processing unit 1261.

The activated malicious switching source processing unit 1261 receives the switching destination radio base station (MCS) transmitted from the radio network control station (MCS) 21 together with the channel switching preparation signal MXR.
The mobile switching system (AMS) 1 to which the BS) 33 belongs is analyzed (step S24), and the existing wireless base station (MBS) 1 is analyzed (step S24).
) 32 same local station [mobile switching system (AMS) 11]
When the malicious call display unit 1211 is identified as belonging to (step S25), the malicious call display unit 1211 is activated.

The activated malicious call display unit 1211 displays the calling subscriber number DN42, the called subscriber number DN41, and the wireless network control station (MCS) of the switching target communication channel.
22's radio network control station number DN22, and the switching destination radio base station (MBS) 33's radio base station number DN33.
A malicious call message M containing the message M is created and output to the console 19, and an alarm is sounded to notify the maintenance personnel of the output of the malicious call message M (step S26).

Thereafter, the central control unit 121 controls the originating mobile station (MSS) 42 and the terminating mobile station (MSS) using a known procedure.
41 (step S27).

[0036] As described above, the mobile station (MSS) 42 which has made a malicious call to the mobile station (MSS) 41 can transmit the communication from the communication range of the wireless base station (MBS) 32 to the wireless base station (MBS) 33 during the call. The mobile switching system (AMS) 11 immediately determines that the mobile station has moved within the service area.

The mobile station (MSS) 42 , which is in communication with the mobile station (MSS) 41 , further communicates with the wireless base station (MBS) 35 .
When you move to the communication range of
determines the radio channel control station (MCS) 23 and radio base station (MBS) 35 to which the new communication channel will be set using the same procedure as described above, and then sends the message to the mobile switching system (AMS) 11. Calling subscriber number DN42,
Called subscriber number DN41, switching destination radio network control station (MC)
S) Radio network control station number DN23 of 23 and radio base station number DN35 of switching destination radio base station (MBS) 35
A channel switching preparation signal MXR is transmitted.

In the mobile switching system (AMS) 11, the central controller 121 is connected to the radio network control station (MCS) 2.
When the channel switching preparation signal MXR transmitted from 2 is received via the control signal transfer device (MDE) 161 (step S21 in FIG. 4), the malicious call information C in the trunk memory 1311 is changed to the registered state ( C=“1”
) is set (step S23
), the malicious switching source processing unit 1261 is activated.

As described above, the activated malicious switching source processing unit 1261 is connected to the switching destination radio base station (MBS) 35 that is transmitted from the radio network control station (MCS) 22 together with the channel switching preparation signal MXR. Mobile switchboard (
AMS) 1 (step S24), and unlike the existing wireless base station (MBS) 33,
MS) 12 (step S25).
), calling subscriber number DN42, called subscriber number DN41
, the radio network control station number DN23 of the switching target radio network controller station (MCS) 23 and the switching target radio base station (MBS) 3
5 along with the wireless base station number DN35, the registration status (D=
A channel switching address signal CIA including malicious call information D set to "1") is created, and the common line signaling equipment (CSE)
18 to the mobile switching system (AMS) 12 (step S28).

[0040] Thereafter, the central controller 121 controls the originating mobile station (MSS) 42 and the terminating mobile station (MSS) using a known procedure.
41 in cooperation with the mobile switching system (AMS) 12 (step S2).
9).

[0041] In step S23, when it is determined that the malicious call information C in the trunk memory 1311 corresponding to the communication channel currently in use is set to an unregistered state (C="0"), the central control unit 121 executes the communication channel switching process according to a known procedure without activating the malicious switching source processing unit 1261 (step S3
0).

On the other hand, in the mobile switching system (AMS) 12, the central control unit 122 is connected to the mobile switching system (AMS).
11 through the common line signaling equipment (CSE) 182 (step S41 in FIG. 5), the malicious call information D included in the channel switching address signal CIA is registered ( D=“
1”), the process proceeds to step S
42), starts the malicious switching destination processing unit 1272 and stores the trunk memory 1312 in the main storage device 132 corresponding to the switching destination communication channel [mobile trunk (MBT) 152] specified in the channel switching address signal CIA.
and sets the malicious call information C to the registered state (C="1") (step S43).

Furthermore, the central control unit 122 activates the malicious call display section 1212. Activated malicious call display unit 121
2 are the originating subscriber number DN42, the terminating subscriber number DN41, the radio channel control station number DN23 of the radio channel control station (MCS) 23, which are included in the channel switching address signal CIA transmitted from the mobile switching system (AMS) 11. and wireless base station number DN of wireless base station (MBS) 35
Create a malicious call message M containing 35 and send it to console 1.
92 and also sounds an alarm to notify the maintenance personnel of the output of the malicious call message M (step S44).
.

[0044] Thereafter, the central controller 122 controls the originating mobile station (MSS) 42 and the terminating mobile station (MSS) using a known procedure.
41 in cooperation with the mobile switching system (AMS) 11 (step S4).
5).

[0045] As described above, the mobile station (MSS) 42 which made a malicious call to the mobile station (MSS) 41 attempts to communicate with the wireless base station (MBS) 35 from the communication range of the wireless base station (MBS) 33 during the call. The mobile switching system (to which the destination wireless base station (MBS) 35 belongs)
AMS) 12.

Next, the originating mobile station (MSS) 42 calls the terminating mobile station (MSS) within the communication range of the wireless base station (MBS) 32.
S) 41 Terminate the call (malicious call) and return to the mobile device (MS).
S) After releasing the communication channel with 41, if you make a call to any called subscriber, the mobile switching system (AMS) 1
1, the central controller 121 detects a call from the mobile station (MSS) 42 as described above (step S in FIG. 6).
51), followed by the originating subscriber number DN 42 of the originating mobile station (MSS) 42 transmitted from the mobile station (MSS) 42
When the home memory station (HM station) is identified as the own station [mobile switching system (AMS) 11] (step S52), the home memory (HM) 141 corresponds to the originating mobile station (MSS) 42. When the incoming translated word 1422 held in the incoming call is extracted and analyzed (step S53), and it is identified that the malicious call origination information B is set to the registered state (B="1") (step S54), The re-transmission processing unit 1231 is activated.

The activated malicious re-call processing unit 1231 stores data in the main storage device 131 corresponding to the communication channel [mobile trunk (MBT) 151] used for the call origination from the mobile station (MSS) 42. Trunk memory 1311
and sets the malicious call information C to the registered state (C="1") (step S55).

Furthermore, the central controller 121 activates the malicious call display section 1211. Activated malicious call display unit 121
1 is the originating subscriber number DN42 transmitted from the originating mobile station (MSS) 42, the called subscriber number DN, the radio channel control station number DN21 of the radio channel control station (MCS) 21 to which the communication channel is set, and the radio Base station (MBS)
Creates a malicious call message M including the radio base station number DN32 of 32 and outputs it to the console 191,
An alarm is sounded to notify the maintenance personnel of the output of the malicious call message M (step S56).

Thereafter, the central control unit 121 executes a call connection process from the originating mobile station (MSS) 42 using a known procedure (step S57). Note that in step S54, if the malicious call origination information B in the origination translation word 1412 is set to an unregistered state (B="0"), the central control device 121 activates the malicious re-transmission processing unit 1231. The malicious call information C in the trunk memory 1311 remains unregistered (C="0") without any trouble (step S
58), the outgoing connection process is executed (step S57).

[0050] As described above, when the mobile station (MSS) 42 which released the malicious call with the mobile station (MSS) 41 re-transmits to any subscriber, the mobile switching system (AMS) 11 to which it currently belongs The current location of the mobile station (MSS) 42 is immediately known.

Furthermore, the originating mobile station (MSS) 42 is connected to the terminating mobile station (MSS) within the communication range of the wireless base station (MBS) 32.
S) 41 Terminate the call (malicious call) and return to the mobile device (MS).
S) After releasing the communication channel with 42, when moving to the communication range of wireless base station (MBS) 33 without a call,
The radio network control station (MCS) 22 detects the movement of the mobile station (MSS) 42 using a known procedure, and
2 subscriber number DN42, destination radio network control station (
MCS) 22's radio network control station number DN22, the destination radio base station (MBS) 33's radio base station number DN3
The location registration signal MPR including 3 is sent to the mobile switching system (AMS).
11.

[0052] In the mobile switching system (AMS) 11, the central controller 121 is connected to the radio network control station (MCS) 2.
When the location registration signal MPR transmitted from 2 is received via the control signal transfer device (MDE) 161 (step S61 in FIG. 7), the malicious location change processing unit 1241 is activated and the subscriber number included in the location registration signal MPR is received. The DN 42 is analyzed (step S62), and the home memory station (HM station) of the mobile station (MSS) 42 is
MS) 11 ] (steps S63 and S
64), the mobile device (M
SS) 42 Outgoing translation words held corresponding to 14
12 is extracted and analyzed (step S65), and it is identified that the malicious call origination information B provided in the origination translation word 1412 is set to the registered state (B="1") (step S66). , starts the malicious call display section 1211.

The activated malicious call display section 1211 displays the subscriber number DN42 included in the location registration signal MPR, the radio channel control station number DN22 of the radio channel control station (MCS) 22 at the destination, and the radio base station (MBS) ) 33 and outputs it to the console 191, and sounds an alarm to notify the maintenance personnel of the output of the malicious call message M (
Step S67).

Thereafter, the central controller 121 executes the location registration process of the mobile station (MSS) 42 using a known procedure (
Step S68). Note that in step S66, the malicious call origination information B provided in the origination translation word 1412 is
When the central controller 121 identifies that the call is set to an unregistered state (B="0"), the central controller 121 displays the malicious call display unit 121.
1 without activating the mobile device (MSS) using known procedures.
)42 location registration process is executed (step S68).
.

[0055] Also, in step S64, the home memory station (HM station) is connected to another station [for example, a mobile switching system (AMS)].
13], the central controller 121 transmits the location registration signal MPR to the mobile switching equipment (A), which is the home memory station (HM station), via the common line signaling equipment (CSE) 181.
MS) Transfer to 13.

In the mobile switching system (AMS) 13 , the central control unit 123 is connected to the mobile switching system (AMS) 11 .
When the location registration signal MPR transferred from the location registration signal MPR is received via the common line signaling equipment (CSE) 183, the subscriber number DN42 included in the location registration signal MPR is transferred in the same process as in the mobile switching system (AMS) 11. Radio channel control station number D of the destination radio channel control station (MCS) 22
A malicious call message M including the wireless base station number DN33 of the wireless base station (MBS) 33 was created and outputted to the console 193, and an alarm was sounded to notify the maintenance personnel of the output of the malicious call message M. Thereafter, the location registration process of the mobile station (MSS) 42 is executed using a known procedure.

As is clear from the above explanation, according to this embodiment, the malicious call reception information A is registered in the mobile station (MSS).
The location information regarding the mobile station (MSS) 42 that made the malicious call to 41 is collected not only at the time of the call, but also whenever the mobile station (MSS) 42 moves within the communication range of the wireless base station (MBS) 3 during the call. A malicious call message M containing information is displayed in the attached mobile switching system (AMS) 1, and even when a malicious call is sent to an arbitrary subscriber after being released, a malicious call message M containing location information at the time of sending is displayed. A call message M is displayed on the attached mobile switching system (AMS) 1, and even if the communication area is moved without a call, a malicious call message M containing the location information of the destination is displayed on the home memory station each time the location is registered. (HM station), it becomes easy to track and capture the originating mobile station (MSS) 42 of the malicious call.

It should be noted that FIGS. 2 to 8 are only one embodiment of the present invention, and for example, mobile stations (MSS) 41 and 4
2's home memory station is mobile switching system (AMS) 11
Mobile switching system (AMS)12
Although many other modifications may be considered, such as 13 or 13, the effects of the present invention remain the same in either case. Furthermore, the configuration of the mobile communication network and the configuration of the mobile switching system (AMS) 1 are not limited to those shown in the drawings, and many other modifications may be considered, but in any case, the present invention may be applied. The effect remains the same.

[0059]

As described above, according to the present invention (claim 1), when a mobile device that has terminated a malicious call to a specific mobile device makes a re-transmission, the current location of the originating mobile device is displayed. Further, according to the present invention (claim 2), even if a mobile device that has terminated a malicious call to a specific mobile device moves without making a call, the destination location of the originating mobile device is displayed. Furthermore, according to the present invention (claim 3), even if the mobile device that originated the malicious call moves during a call, the location of the destination mobile device that originated the malicious call is displayed, and the mobile device that originated the malicious call is displayed. Tracking and capture becomes much easier.

[Brief explanation of drawings]

[Figure 1] Diagram showing the principle of the present invention

FIG. 2 is a diagram showing a mobile switch according to an embodiment of the present invention.

[Figure 3] Diagram showing an example of the malicious call originator registration process in Figure 2

[Figure 4] A diagram showing an example of the channel switching preparation signal reception process in Figure 2.

[Figure 5] A diagram showing an example of the channel switching address signal reception process in Figure 2.

[FIG. 6] A diagram showing an example of the malicious call originator display process in FIG. 2.

[Figure 7] A diagram showing an example of the location registration signal reception process in Figure 2

[Fig. 8] A diagram showing an example of a mobile communication network that is a target of the present invention.

[Explanation of symbols]

1 Mobile switching system (AMS) 2 Radio network control station (MCS) 3 Wireless base station (MBS) 4 Mobile station (MSS) 11 Network 12 Central control unit 13 Main memory 14 Home memory (HM) 15 Mobile Trunk (MBT) 16 Control signal transfer device (MDE) 17. Inter-office call trunk (CBT) 18 Common Line Signaling Equipment (CSE) 19 Console 100 Malicious sender registration means 121 Malicious call display section 122 Malicious sender registration department 123 Malicious retransmission processing unit 124 Malicious position change processing unit 125 Malicious call registration department 126 Malicious switching source processing unit 127 Malicious switching destination processing unit 131 Trunk memory 141 Outgoing translation word 142 Incoming translated word 200 Retransmission detection means 300 Position change detection means 400 Malicious call registration means 500 Malicious call registration change means

Claims (3)

[Claims] Claim 1. In a mobile communication network having a function of displaying an incoming call to a pre-registered mobile unit as a malicious call, each mobile exchange (1) constituting the mobile communication network
a malicious caller registration means (100) for registering malicious call origination information indicating that the mobile device is the originator of the malicious call, corresponding to the mobile device that has originated the incoming call to the registered mobile device; re-call detection means (200) for analyzing whether or not the malicious call origination information has been registered for the originating mobile device when a call is detected from the originating mobile device; (
200) displays the location of the originating mobile device when it identifies that the malicious call origination information has been registered corresponding to the originating mobile device. 2. In a mobile communication network having a function of displaying an incoming call to a pre-registered mobile device as a malicious call, each mobile exchange (1) constituting the mobile communication network
a malicious caller registration means (100) for registering malicious call origination information indicating that the mobile device is a malicious call originator corresponding to a mobile device that has issued an incoming call to the registered mobile device; When receiving a location registration request due to movement sent from any mobile device in a conversation state, analyze whether the malicious call origination information has been registered for the mobile device that is the source of the location registration request. a location change detection means (300), and when the location change detection means (300) identifies that the malicious call origination information has been registered corresponding to the mobile device that is the location registration request source, the location change detection means (300) detects the location registration request. A malicious call subscriber tracking method characterized by displaying the location of the original mobile station. 3. In a mobile communication network having a function of displaying an incoming call to a pre-registered mobile device as a malicious call, each mobile exchange (1) constituting the mobile communication network
malicious call registration means (400) for registering malicious call information indicating that the call is a malicious call in correspondence with a channel in use by the malicious call; Malicious call registration change for changing registered malicious call information corresponding to the channel before switching to correspond to the channel after switching when the registered channel is switched due to the movement of the originating mobile device. means (500), and the malicious call registration changing means (500) displays the location of a calling mobile device that is using a channel in which the malicious call information has been registered and changed. .