JP3698262B2 - Communication terminal capable of outgoing control and outgoing control method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention generally relates to a communication terminal and a call control method capable of controlling outgoing calls, and in particular, a communication terminal capable of avoiding planned congestion in which calls to a specific number are concentrated by updating the outgoing call control program of the communication terminal from the outside. The present invention relates to a transmission control method.
[0002]
[Prior art]
An example of a system that controls call origination in order to eliminate a congestion state in a conventional communication network is disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-78260 (Patent Document 1). In the system disclosed therein, the base station constantly monitors the congestion state of the radio zone, calculates the congestion level, and notifies the mobile terminal as congestion information. The mobile terminal performs call restriction according to the congestion level and the type of communication service, or by adding call priority to this.
[0003]
Another conventional example is disclosed in Japanese Patent Laid-Open No. 2001-169360 (Patent Document 2). In the system disclosed therein, congestion control is performed in which communication with a mobile terminal existing in a specific area is preferentially secured. When a large number of calls occur and the base station becomes congested, the base station transmits call restriction information to all mobile terminals in a simultaneous broadcast. In addition, disaster sites are set as specific areas, and specific area information is sent to all mobile terminals in a simultaneous broadcast. Even with the call restriction information, call setting processing is preferentially performed for a call request to a mobile terminal existing in a specific area.
[0004]
Among the above prior arts, there is no control system that eliminates so-called planned congestion in which incoming calls concentrate on one telephone number, such as ticket reservation. When planned congestion is expected to occur, it is necessary to perform congestion control in order to make the communication network function normally. In some conventional techniques, an incoming call to a restriction target number is detected by an originating exchange, and congestion control is performed by reducing the amount of calls connected to a destination. The conventional congestion control method will be described below with reference to FIG.
[0005]
In FIG. 1, 400 is a mobile communication system, 300 is a fixed communication network of another operator, 430 is a subscriber switch, 420 is a gateway switch in the mobile communication system, 320 is a gateway switch in the fixed communication network, BSl-BS3 is a radio base MS5-MS8 is a mobile phone, and TCS is a congestion control operation system.
[0006]
When planned congestion in which incoming calls to specific telephone numbers in the fixed communication network 300 are expected to occur, a congestion control command is input to the subscriber switch 430 from the operation system TCS in the mobile communication system 400. As a result, congestion control information for a specific telephone number is set in the subscriber exchange 430. According to the congestion control information, the subscriber switch 430 transmits an outgoing call to the gateway switch 420 only at a predetermined rate, such as 10%, when an incoming call is received from the mobile phone MS5-MS8. It becomes possible to avoid the network congestion state of the mobile communication system 400.
[0007]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-78260 [Patent Document 2]
JP 2001-169360 A
[Problems to be solved by the invention]
In the conventional technology, a subscriber switch regulates the call to the called party, and resources (memory, CPU, etc.) are temporarily reserved and used by the subscriber switch and the radio base station under the switch. For this reason, there is a problem in that, when trying to make a call from the mobile phone accommodated in the subscriber exchange for other purposes, it becomes difficult to make a call.
[0009]
Therefore, the present invention has been made in view of the above points, and an object of the present invention is to provide a communication terminal and a transmission control method capable of controlling congestion without generating invalid resources in an exchange and a radio base station.
[0010]
[Means for Solving the Problems]
In accordance with one aspect of the present invention for achieving the above object, a communication terminal capable of controlling outgoing calls with respect to a call to a predetermined telephone number stores a telephone number to be controlled for outgoing calls, and transmits a call according to the outgoing call control program. A transmission control unit that performs control; a determination unit that determines whether or not an input destination telephone number matches a transmission control target telephone number; and when the determination unit detects a match, the transmission control unit is predetermined Regulate outgoing calls with the probability of.
[0011]
According to another aspect of the present invention, there is provided a call control method in a communication terminal capable of performing call control on a call to a predetermined telephone number, the step of storing a telephone number to be controlled by the call control unit; A step of determining whether or not the telephone number matches the call control target telephone number; in the case of a match, the call control unit comprises a step of restricting the outgoing call with a predetermined probability.
[0012]
According to another aspect of the present invention, in the mobile terminal and the outgoing call control method, it is possible to determine whether or not to restrict outgoing calls with a predetermined probability based on the own telephone number. In addition, based on the time, it can also be determined whether or not to restrict outgoing calls with a predetermined probability. The transmission control unit can also acquire the transmission control program from the outside.
[0013]
[Action]
According to the communication terminal according to one aspect of the present invention, based on a call control program for avoiding congestion stored in the call control unit, a certain amount of calls to a specific telephone number is regulated with a predetermined probability. By doing so, planned congestion of the communication network can be avoided.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0015]
An embodiment according to the present invention will be described with reference to FIG. FIG. 2 is a conceptual diagram of a congestion control method in the mobile communication system 100 according to the present embodiment. The mobile communication system 100 is connected to a fixed communication network 300 of another provider, for example, and can transmit a call there. The communication network 300 may be a communication network of the same company or a mobile communication network. The fixed communication network 300 includes a fixed gateway exchange 320 and a fixed telephone 350.
[0016]
The mobile communication system 100 includes a gateway exchange 120 connected to a fixed gateway exchange 320, a subscriber exchange 130 below the gateway exchange 120, and a plurality of radio base stations BS1, BS2, BS3 below the subscriber exchange 130. . A plurality of mobile phones that are mobile terminals belong to each radio base station. For example, mobile phones MS1, MS2, MS3, MS4 belong to the base station BS1. A program is downloaded to these cellular phones from a wirelessly connected control information air download server SV.
[0017]
When it is anticipated that planned congestion will occur where incoming calls to a specific telephone number, for example, the telephone number of the fixed telephone 350 in the fixed communication network, are concentrated, the control information air download server SV sends the mobile telephone MS1. -A transmission control program for avoiding planned comparison is downloaded to MS4. In this way, logic that restricts outgoing calls to a specific number is set in the mobile phone MSl-MS4. The mobile phone MSl-MS4 raises only a certain percentage of outgoing calls to the base stations BS1-BS3 according to the downloaded outgoing call control program. As a result, it is possible to avoid a congestion state in the mobile communication system 100 beyond the base station.
[0018]
When the planned congestion state ends, it is possible to return to the original state by downloading the transmission control program before the change from the control information air download server SV to the mobile phones MS1-MS4.
[0019]
FIG. 4 is a chart showing a procedure for downloading a transmission control program from the control information air download server SV to the mobile phone MS. When implementing planned congestion control, first, the control information air download server SV transmits a transmission start signal to each mobile phone MS. Next, when the control information air download server SV receives a transmission start acknowledgment signal from the mobile phone MS, the control information air download server SV starts to download a transmission control program including a logic to be updated. If transmission is interrupted during program download, the program is retransmitted. When the transmission is completed, a transmission completion signal is received from the mobile phone MS, and a series of download processing is completed.
[0020]
With reference to FIG. 3, FIG. 5, FIG. 6, and FIG.
[0021]
FIG. 5 is a call control flowchart in the mobile phone before the call control program is downloaded. Before the call control program is updated, a call destination number is input to the call destination number input unit 250 by a key operation of the mobile phone 200 (see FIG. 3) (step 001). When transmission is instructed by pressing the transmission button (step 002), the transmission unit control unit 240 transmits a transmission signal addressed to the input destination number to the radio base station via the transmission / reception unit 220. The call setup process is started.
[0022]
6 and 7 are flow charts for call control in the mobile phone after the call control program has been downloaded.
[0023]
Suppose that a call to a fixed telephone number “03-5156-0001” is expected to flood, and it is desired to restrict outgoing calls to that telephone number. "When a call to 03-5156-0001 is made, the call is made only when the last two digits of the mobile phone number is 00" (step 005) and when step 005 is NG A transmission control program incorporating a logic (step 011) for canceling transmission is downloaded from the control information air download server SV to the mobile phone 200.
[0024]
The mobile phone 200 receives the transmission control program via the transmission / reception unit 220 and stores it in the transmission control unit 240. When the user dials 03-5156-0001, the number is input to the destination number input unit 250, and the determination unit 280 determines whether the dialed number matches the control target number. If they match, the determination unit 280 further determines whether or not the last two digits of the own telephone number obtained from the self-number storage unit 260 are 00. As a result of the determination, if the last two digits are not 00, the information is transmitted to the transmission control unit 240. The transmission control unit 240 stops the transmission of the call according to the transmission control program. If the last two digits are 00, the call is made. In this way, the call volume rising to the subscriber exchange 130 can be reduced to 1/100.
[0025]
Further, in the logic of step 005, if the number of the mobile phone to be determined is expanded to the last three digits, the probability can be regulated to 1/1000. It is possible to arbitrarily control the call volume as necessary.
[0026]
A flow chart of the regulation logic according to another embodiment is shown in FIG.
[0027]
After all, it is expected that calls to a fixed telephone number “03-5156-0001” will be flooded, and it is desired to restrict outgoing calls to that telephone number. “When a call is made to 03-5156-0001, a call is made only when the time of the second of the own mobile phone when the call button is pressed is 05” (step 006), and step 006 is NG At this time, a transmission control program incorporating a logic (step 011) for canceling transmission is downloaded from the control information air download server SV to the mobile phone 200.
[0028]
The mobile phone 200 receives the transmission control program via the transmission / reception unit 220 and stores it in the transmission control unit 240. When the user dials 03-5156-0001, the number is input to the destination number input unit 250, and the determination unit 280 determines whether the dialed number matches the control target number. If they match, the determination unit 280 obtains information on the current time from the time counting unit 270 and determines whether or not the time of the second of the mobile phone when the call button is pressed is 05. As a result of the determination, if the last two digits are not 05, the information is transmitted to the transmission control unit 240. The transmission control unit 240 stops the transmission of the call according to the transmission control program. If the last two digits are 05, the call is made. In this way, the call volume rising to the subscriber exchange 130 can be reduced to 1/60.
[0029]
In the above-described embodiment, the telephone number and the time are used, but other elements can be used. In addition, the probability of call transmission can be arbitrarily set and changed.
[0030]
【The invention's effect】
As described above, according to the embodiment of the present invention, since it is possible to implement call restriction to a specific number at the stage of call from a mobile terminal, congestion restriction is achieved without affecting other-purpose calls in the base station. Is possible. In addition, it is possible to control outgoing calls without any knowledge by the user with an arbitrary probability.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a conventional mobile communication system and a fixed communication network.
FIG. 2 is a schematic configuration diagram of a mobile communication system and a fixed communication network according to an embodiment of the present invention.
FIG. 3 is a schematic configuration diagram of a mobile communication terminal according to an embodiment of the present invention.
FIG. 4 is a chart showing a procedure for downloading a transmission control program.
FIG. 5 is a call control flowchart in the mobile phone before the call control program is downloaded.
FIG. 6 is a call control flowchart in the mobile phone after the call control program is downloaded.
FIG. 7 is a call control flowchart in the mobile phone after the call control program is downloaded.
[Explanation of symbols]
100 Mobile Communication System 120 Gateway Switch 130 Subscriber Switch
BS1-B24 Base station
SV control information air download server
MS1-MS4 mobile phone

Claims (6)

A communication terminal capable of controlling outgoing calls for a call to a predetermined telephone number:
Ri transmission path outside near the call, and stores the acquired outgoing control program and telephone number to be originating control directly and the communication terminal connected control information download server, performs outgoing call control according to the originating control program Transmission control unit;
A determination unit that determines whether or not the input destination telephone number matches the call control target telephone number;
Consisting of
When the determination unit detects a match, the transmission control unit regulates the outgoing call with a predetermined probability;
A communication terminal characterized by that. A communication terminal according to claim 1:
The determination unit determines whether or not to restrict the outgoing call with a predetermined probability based on its own telephone number;
A communication terminal characterized by that. A communication terminal according to claim 1:
The determination unit determines whether or not to restrict outgoing calls with a predetermined probability based on time;
A communication terminal characterized by that. A call origination control method in a communication terminal capable of call origination control for a call to a predetermined telephone number, comprising:
Step transmitting control unit, the transmission path outside near the call is, acquires and stores outbound control program and telephone number to be originating control directly and the communication terminal connected control information download server;
Determining whether or not the input destination telephone number matches the call control target telephone number;
A step of restricting outgoing calls with a predetermined probability when they match;
A transmission control method comprising: The outgoing call control method according to claim 4:
In the call control step with the predetermined probability, it is determined whether or not to restrict call transmission based on its own telephone number;
An outgoing call control method characterized by the above. The outgoing call control method according to claim 4:
Determining whether or not to restrict outgoing calls based on time in the outgoing call control step with the predetermined probability;
An outgoing call control method characterized by the above.

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