JPH1032864A - Mobile body incoming call regulation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly execute incoming call regulation at the time of occurrence of congestion in a mobile body incoming call regulation system in a mobile telephone network. SOLUTION: Each exchange 200 is provided with a congestion supervisory means 201 which supervises a congestion state in a management communication range 300 and a congestion level notifying means 202 which searches for a congestion level and notifies it, together with its location information to each home memory station 400, when the means 202 detects that a congestion state exceeds a prescribed reference, and each memory station 400 is provided with a congestion level storage means 401 which stores a congestion level and location information and a regulation deciding means 402 which counts and compares an incoming request number and an incoming enabling number, analyzes whether a compared result exceeds a stored congestion level or not, decides whether regulation of an incoming call is needed or not and notifies it together with its location information to an inquiring exchange 200, whenever the means 402 receives an inquiry of the location information of a called terminal from the exchange 200 where an incoming call is sent to a mobile terminal 301.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for restricting incoming calls in a mobile telephone network, and more particularly to a plurality of mobile terminals for controlling outgoing / incoming connections to mobile terminals in a communication area under management, an exchange, and each mobile terminal. The present invention relates to a mobile termination control system in a mobile telephone network having one or a plurality of home memory stations for registering position information for identifying an existing communication area.

[0002]

FIG. 13 is a diagram illustrating a mobile telephone network to which the present invention is applied. The mobile telephone network (1) shown in FIG. 13 includes a plurality (seven in FIG. 13) of mobile telephone exchanges (3) and a plurality (two in FIG. 13) of home memory stations (6). Is provided.

Each exchange (3) controls an exchange connection to a mobile telephone terminal (5) existing in a communication area (4) under management. Each home memory station (6) stores location information (LI) given to an existing communication area (4) of each mobile telephone terminal (5) subscribed to the mobile telephone network (1).
Each of them is registered separately, and the location information (LI)
A notification is sent from the mobile telephone exchange (3 ₁ ) periodically from each mobile telephone terminal (5) or when the mobile telephone terminal (5) moves between the communication areas (4).

A subscriber (2) of a telephone network other than the mobile telephone network (1) (in FIG. 13, an existing fixed telephone network (2)).
The outgoing / incoming connection with 1) is performed by a specific switch (3) of the mobile telephone network (100) [in FIG. 13, a mobile telephone switch (3 ₁ ), hereinafter referred to as a gateway switch (3 _GW )]. The exchange is controlled via the switch.

In a conventional mobile telephone network (1),
Fixed mobile telephone exchange (3₁), Eg mobile phone exchange
Machine (3₆Congestion occurs due to concentration of calls in
Congestion occurs when a situation occurs where connection cannot be guaranteed
Live mobile telephone exchange (3 ₆)
Mobile telephone exchange (3) [for example, mobile telephone exchange
(3 _Two), (3_Three)], The mobile phone during the occurrence of congestion
Exchange (3₆) Or the station number assigned to
Telephone exchange (3_Two) And (3)_Three) From congestion
Mobile telephone exchange (3₆) To connect the telephone line (7)
An artificially designated mobile telephone exchange (3
₆) To promote incoming calls to congestion
Was.

[0006] As a result, the periphery of each of the mobile phone exchange for (3), it becomes possible to spend a great deal of time and effort until set the incoming regulatory regime to the congestion mobile phone exchange (3 _6), especially In the event of an emergency, such as during a disaster, there was a problem that a prompt incoming call control system could not be established.

[0007]

As is clear from INVENTION Problems to be Solved] The above description, in the mobile phone network in the prior art, when a congestion state occurs in particular mobile telephone exchange (3 _6), the peripheral of the mobile telephone exchange (3 _2), specify the station number of (3 ₃₎ from congestion mobile telephone switching unit in order to set the incoming regulatory regime with respect to (3 _6), congestion mobile phone exchange (3 _6), or congestion generating movement telephone exchange (3 ₆₎ such as to regulate the connection by specifying a communication line to connect to (7), artificial measures for which only had been taken, congestion mobile phone exchange (3 ₆₎ It takes a lot of time and effort to set up a system for restricting incoming calls to mobile phones, and there is a problem that a rapid incoming call control system cannot be established especially in an emergency such as a disaster.

For the purpose of solving such a problem, the invention “Regulatory system in mobile communication system” [Japanese Patent Laid-Open No. Hei 6-983]
67] (hereinafter referred to as the prior application) was published on April 6, 1994.

In the above-mentioned prior application, a traffic control system provided outside the mobile telephone network monitors the traffic of the mobile telephone network, transmits a restriction notification to an exchange requiring restriction, and sends a home notification to the exchange. The restriction information is also sent to the memory station, the restriction state is registered together with the position information in the home memory station, and at the beginning of the call connection processing to the mobile terminal, the restriction state is searched together with the position information to determine whether the restriction is necessary. Is what you do.

However, in the above-mentioned prior application, it is necessary to provide a traffic control system other than the mobile telephone network in order to register the regulation state in the home memory station, and it is not possible to take measures only in the mobile telephone network. There was a possible problem.

SUMMARY OF THE INVENTION It is an object of the present invention to realize a means that can quickly execute incoming call restriction when congestion occurs without taking artificial measures and without providing an extra system other than the mobile telephone network. And

[0012]

FIG. 1 is a diagram illustrating the principle of the present invention. In FIG. 1, reference numeral 100 denotes a mobile telephone network which is an object of the present invention, 200 denotes a plurality of exchanges constituting the mobile telephone network (100), 300 denotes a communication area managed by the exchange (200), and 400 denotes a mobile terminal ( 301) existing communication area (30)
0) is a home memory station to register.

Reference numeral 201 denotes each exchange (20) according to the present invention.
0) is a congestion monitoring means. Reference numeral 202 denotes a congestion level notification unit provided in each exchange (200) according to the present invention.

Reference numeral 401 denotes a congestion level storage means provided in each home memory station (400) according to the present invention. 4
Numeral 02 is a regulation judging means provided in each home memory station (400) according to the present invention.

Each exchange (200) is connected to the mobile telephone network (1).
00) to control the switching connection to the mobile terminal (301). Each home memory station (400) registers position information for identifying an existing communication area of each mobile terminal (301).

The congestion monitoring means (201) monitors the state of communication congestion in the communication area (300) under management. Congestion level notifying means (202), when the congestion monitoring means (201) detects that the congestion state has exceeded a predetermined criterion, obtains a congestion level indicating a regulation ratio corresponding to the current congestion state, and And the location information given to the communication area (300) to each home memory station (400).

The congestion level storage means (401) stores the congestion level notified from the congestion level notification means (202) of each exchange (200) and the location information in association with each other.
The restriction judging means (402) receives an inquiry about the incoming information of the called mobile terminal (301) from the exchange (200) in which the incoming request to the mobile terminal (301) in the mobile telephone network (100) has occurred. Each time, the number of incoming requests and the allowable number of incoming calls that are generated in accordance with the location information of the called mobile terminal (301) included in the incoming call information are counted and compared. It is analyzed whether the congestion level stored in the congestion level storage means (401) is higher than the congestion level stored in the congestion level storage means (401) in accordance with the position information of (301). The result is notified to the exchange (200) of the inquiry source of the position information together with the position information.

As described above, the exchange (2) in which the incoming call request has occurred
00) sends an incoming request to the called mobile terminal (30) based on the regulation determination result notified from the home memory station (400).
It is determined whether 1) the incoming call is connected or the incoming call is restricted to notify the caller of the incoming call restriction.

The congestion monitoring means (201) monitors the congestion state of the communication area (300) under management by the use efficiency of the call processing unit of the local exchange (200), and responds to the use efficiency exceeding a predetermined standard. It is considered that the congestion level is determined by the following method.

Further, the congestion monitoring means (201) monitors the congestion state of the communication area (300) under management based on the usage rate of the mobile communication line of the own communication area (300). Correspondingly, determining the congestion level is considered [claim 3].

When the new congestion level notified from the exchange (200) is stored, the restriction judging means (402) counts the number of incoming calls and the allowable number of incoming calls counted by the restriction judging means (402). After the initial setting, each time a query for incoming call information arrives, the number of incoming requests and the allowable number of incoming calls are each added with the number “1”. When the ratio exceeds the congestion level stored in the congestion level storage means (401),
After it is determined that the incoming call needs to be barred, the number of incoming requests is left as it is after adding the number “1”, and the allowable number of incoming calls is the number “1”.
Is returned to the value before the addition, and when the ratio of the allowable number of incoming calls after addition to the number of incoming requests after addition falls below the congestion level stored in the congestion level storage means (401), incoming calls are barred. After it is determined that the number is not necessary, it is considered that the value after adding the number “1” to the number of incoming calls and the allowable number of incoming calls remains the same.

Therefore, the congestion level of each exchange is always detected by the exchange itself and reported to each home memory station, stored in the home memory station corresponding to the location information, and the incoming call to the mobile terminal occurs. Therefore, regulation corresponding to the congestion level can be executed, and the regulation system of the mobile telephone network can be quickly and accurately set up. In addition, human labor and traffic control systems other than the mobile telephone network are also required. This is unnecessary, and the reliability and convenience of the mobile telephone network are greatly improved.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. 2 is a diagram showing a mobile telephone exchange according to an embodiment of the present invention, FIG. 3 is a diagram showing a home memory station according to an embodiment of the present invention, and FIG. 4 is a diagram exemplifying a restriction table in FIG. FIG. 5 is a diagram exemplifying the incoming call request number table in FIG. 3, FIG. 6 is a diagram exemplifying the incoming call allowable number table in FIG. 3, and FIG. 7 is a diagram exemplifying the subscriber information file in FIG. And
8 is a diagram illustrating another restriction table in FIG. 3, FIG. 9 is a diagram illustrating a congestion recognition / notification process in the mobile telephone exchange, and FIG. 10 is a diagram illustrating a congestion level storage process in the home memory station. FIG. 11 is a diagram illustrating an example of an incoming call process in the mobile telephone exchange;
FIG. 12 is a diagram exemplifying the incoming information extraction processing and the regulation determination processing in the home memory station. The same reference numerals indicate the same objects throughout the drawings. The target mobile telephone network is as shown in FIG.

Mobile telephone exchange (3) shown in FIG.
Are a communication path unit (31), a call processing unit (32), a congestion recognition unit (33), a congestion notification unit (34), and a regulation processing unit (3).
5) is provided.

The communication channel unit (31), communication lines for connecting with another mobile telephone exchange (3) (7 _1), or a communication line that connects the fixed telephone network and (2) (7 ₂₎ [gateway exchange ( 3
_GW )], the communication line (7 ₃ ) connected to the communication area (4) [the base station (not shown)] under the management is switched and connected.

The call processing unit (32) communicates with the mobile telephone exchange (3) and the home memory station (6) via the common signal line (8) and the common line signal network (9). Exchange information is exchanged, the communication path unit (31) is controlled, and exchange processing is executed. As an example, the call processing unit (3
FIG. 11 shows an example of an incoming call process that is performed by 2) by controlling a regulation processing unit (35) described later.

The congestion recognition unit (33) and the congestion notification unit (3)
4) plays the role of the congestion monitoring means (201) and the congestion level notifying means (202) in FIG. 1, and executes the congestion recognition / notification processing as shown in FIG.

The restriction processing unit (35) includes a call processing unit (32)
Under the control of (1), based on the restriction determination result notified from the home memory station (6) described later, the process of restricting the incoming call to the mobile telephone terminal (5) that has occurred is executed.

The home memory station (6) shown in FIG.
Subscriber information file (61), incoming request number table (6
3) An incoming call allowable number table (64), a congestion level storage unit (65), an incoming information extraction unit (66), a congestion level extraction unit (67), and a regulation determination unit (68).

The subscriber information file (61) contains subscriber information (SD) indicating the attribute of each mobile telephone terminal (5) in charge of all the mobile telephone terminals (5) in the mobile telephone network (1). )
Is stored.

As shown in FIG. 7, each piece of subscriber information (SD) includes incoming information (SD _T ) [including location information (LI)] necessary for incoming connection to the corresponding mobile telephone terminal (5).
And outgoing information (SD _O ) necessary for outgoing connection from the mobile telephone terminal (5).

Further, as shown in FIG. 4, the location information (LI) and the congestion level (CG) notified from each mobile telephone exchange (3) are stored in the regulation table (62) in correspondence with each other. ing.

As shown in FIG. 5, the number-of-incoming-requests table (63) shows the cumulative result of the number of incoming requests (N _Q ) for the mobile telephone terminal (5) existing in each communication area (4). , And are stored in correspondence with position information (LI) for identifying each communication area (4).

FIG. 6 shows the allowable incoming call number table (64).
As shown in the following, the result of accumulating the allowable number of incoming calls (N _A ) for the mobile telephone terminal (5) existing in each communication area (4) is as follows:
It is stored in correspondence with the position information (LI) for identifying each communication area (4).

The congestion level storage section (65) plays the role of the congestion level storage means (401) in FIG.
The congestion level storage processing indicated by 0 is executed. The incoming information extracting section (66), together with the congestion level extracting section (67) and the restriction determining section (68), plays the role of the restriction determining means (402) in FIG. 1, and performs the incoming information extraction processing as shown in FIG. Execute the regulation determination process.

In FIGS. 2 to 13, in each mobile telephone exchange (3) in the mobile telephone network (1), the congestion recognition unit (33) is started periodically (FIG. 9, step S9).
1], the usage efficiency of the call processing unit (32) is monitored, and the monitoring result is collected [Step S92].

The congestion notifying unit (34) includes a congestion recognizing unit (3)
3) analyze the use efficiency of the call processing unit (32) collected by
If the usage efficiency exceeds a predetermined criterion, it is determined that a congestion state has occurred in the communication area (4) under management, and is converted into a congestion level (CG) indicating a regulation ratio corresponding to the usage efficiency. [Step S93].

As an example, it is assumed that the relationship between the utilization efficiency of the call processing unit (32) and the congestion level (CG) is determined as follows. First, if the use efficiency of the call processing unit (32) is less than 50%, it is determined that there is no congestion, and in particular, the congestion level (C
If it does not convert to G) and exceeds 50%, it is determined that the first degree of congestion has occurred, and it is converted to the first level congestion level (CG ₁ ) that regulates 25% of incoming request calls. When the use efficiency of the call processing unit (32) exceeds 60%,
It is determined that the second degree of congestion has occurred, converted to a second level congestion level (CG ₂ ) that regulates 50% of incoming request calls, and the usage efficiency of the call processing unit (32) exceeds 70%. In this case, it is determined that the third level of congestion has occurred, and the third level congestion level (C
G ₃ ), and the efficiency of use of the call processing unit (32) is
If it exceeds 80%, it is determined that a fourth degree of congestion has occurred, and the call is converted to a fourth level congestion level (CG ₄ ) that regulates 100% of incoming request calls.

The congestion notification unit (34) assembles the converted congestion level (CG) and the location information (LI) assigned to the managed communication area (4) into a predetermined common channel signal format. Are transferred to all the home memory stations (6 ₁ ) and (6 ₂ ) via the common signal line (8) and the common line signal network (9) [Step S94].

Each home memory station (6 ₁ ) and (6 ₂ )
, The congestion level storage unit (65) stores the position information (LI) and the congestion level transferred from each mobile telephone exchange (3) via the common signal line (8) and the common line signal network (9). (CG) [FIG. 10, Step S
101], received position information (LI) and congestion level (C
A number is assigned to the combination with G), and the restriction table (62)
Are stored in numerical order [Step S102].

In FIG. 4, first, the mobile telephone exchange (3 ₄ ) notifies the location information (LI ₄ ) and the first level of congestion level (CG ₁ ) (25% regulation in the previous example).
Stored are numbered (1), [In the previous 75% regulatory] Next location information from the mobile telephone exchange (3 ₇₎ (LI ₆₎ and the third level of the congestion level (CG ₃₎ are notified and , Number (2) and stored.

Subsequently, the congestion level storage unit (65) stores the number of incoming call requests (N) stored in the incoming call request number table (63) corresponding to the location information (LI) received from the mobile telephone exchange (3). _Q ) is initialized (that is, (N _Q ) = “0”, where “X” indicates a decimal number, and so on) [Step S10
3] Then, the stored allowable number of incoming calls (N _A ) corresponding to the position information (LI) received from the mobile telephone exchange (3) in the allowable number of incoming calls table (64) is initialized [that is, (N) _A )
= "0"] [step S104].

In this state, the subscriber (21) of the fixed telephone network (2) is connected to the mobile telephone terminal (5) in the mobile telephone network (1).
_{If an} attempt is made to receive an incoming call for ₁ ), the fixed telephone network (2)
A call request to the mobile telephone terminal (5 ₁ ) is transferred to the gateway exchange (3 _GW ) [= (3 ₁ )] via the common signal line (8) and the common line signal network (9).

The gateway exchange (3_GW)), The call processing unit
(32) is a mobile telephone terminal from the fixed telephone network (2)
(5₁) Is received (FIG. 11, step
S111], the called mobile telephone terminal (5₁) To exchange connection
Necessary incoming information (SD_T1) To obtain a common signal line
(8) and via the common channel signaling network (9)
Telephone terminal (5₁Home memory station [e.g.
(6₁)], Incoming information (SD _T1) [Step
Step S112].

In the home memory station (6 ₁ ), the incoming call information extracting section (66) sends a request for incoming call information (SD _T1 ) of the mobile telephone terminal (5 ₁ ) from the gateway exchange (3 _GW ) to the common signal line. (8) and the reception via the common channel signaling network (9) (FIG. 12, step S121), the subscriber corresponding to the called mobile telephone terminal (5 ₁ ) is referred to by referring to the subscriber information file (61). information extracting incoming information (SD ₁₎ in (SD _T1) [step S122].

Subsequently, the incoming call information extracting section (66) extracts the existing position information (LI ₄ ) of the called mobile telephone terminal (5 ₁ ) from the extracted incoming call information (SD _T1 ), and extracts the congestion level extracting section (66). 67), and requests the congestion level extraction unit (67) to extract a congestion level (CG) corresponding to the position information (LI ₄ ).

The congestion level extracting section (67) searches the restriction table (62) by using the position information (LI ₄ ) transmitted from the incoming call information extracting section (66), and correspondingly stores the stored congestion level (CG). ₁ ) [= 25%] is extracted [Step S123].

Subsequently, the incoming call information extracting section (66) determines the existing position information (LI ₄ ) of the mobile telephone terminal (5 ₁ ) extracted from the extracted incoming call information (SD _T1 ) by the restriction judging section (6).
Transmitted to 8), the extraction of the location information (LI ₄₎ corresponding to the number of incoming requests (N _Q) and incoming allowable number (N _A), and requests the restriction determining section (68).

The restriction judging section (68) refers to the incoming request number table (63) and determines the number of incoming requests (N _Q4 ) corresponding to the position information (LI ₄ ) transmitted from the incoming information extracting section (66). [Step S124], and subsequently, referring to the allowable incoming call count table (64), and checking the incoming call information extracting unit (6).
The allowable number of incoming calls (N _A4 ) corresponding to the position information (LI ₄ ) transmitted from 6) is extracted [Step S125].

Subsequently, the regulation judging section (68) determines the number of incoming call requests.
Number of incoming requests extracted from table (63) (N_Q4) To number
"1" is added, and from the allowable number of incoming call table (64)
The extracted allowable number of incoming calls (N_A4), Add the number "1" and add
Number of incoming requests after (N_Q4+1) (N)_A4
+1) [(N_A4+1) ÷ (N_Q4+1)] and congestion
The level extraction unit (67) extracts from the restriction table (62)
Congestion level (CG ₁) Is subtracted from the number "1"
[1-CG₁[= 75%] [Step S
126].

As a result of the comparison, the number of incoming requests after addition (N _Q4 +
The ratio of the allowable number of incoming calls (N _A4 +1) to (1) [(N _A4 +
1) If (N _Q4 +1)] is less than the remaining number [1-CG ₁ ] [= 75%] obtained by subtracting the congestion level (CG ₁ ) from the number “1”, the incoming call request generated this time is It is determined that there is no need to restrict (step S126), and the result of the determination (regulation unnecessary) is transmitted to the incoming call information extraction unit (66).

As a result of the comparison, the number of incoming requests after addition (N
_Q4 +1) to the allowable number of incoming calls (N _A4 +1) [(N
_A4 +1) ÷ (N _Q4 +1)] is the remaining number [1-CG ₁ ] [= 75%] obtained by subtracting the congestion level (CG ₁ ) from the number “1”.
In the above case, it is determined that the incoming request generated this time needs to be regulated (step S126), and the result of the determination (restriction required) is transmitted to the incoming information extracting unit (66).

The incoming call information extracting unit (66) extracts the called mobile telephone terminal (5 ₁ ) extracted from the subscriber information file (61).
Of the incoming call information (SD _T1 ) and the regulation determination result (regulation unnecessary or regulation required) transmitted from the regulation determination unit (68) into a predetermined common line signal format, and the common signal line (8) and the common line Via the signaling network (9), it is returned to the requesting gateway exchange (3 _GW ) [step S127 or S12
8].

Note that the regulation judging section (68) outputs the regulation judgment result.
When [Regulation not required] is sent, the number of incoming calls
(64) location information (LI_Four) For incoming calls
(N _A4) To (N_A4+1) and [Step S
129], the position information of the incoming request number table (63)
(LI_Four), The number of incoming requests (N_Q4) To (N_Q4+
1) [Step S12A], but the result of regulation determination
When [Regulation required] is transmitted, the allowable number of incoming calls table
(64) location information (LI_Four) For incoming calls
(N_A4) Is (N_A4Number of incoming requests table without updating to +1)
Location information (LI)_FourIncoming request corresponding to)
Number (N_Q4) Only (N_Q4+1) [Step S
12A].

In the gateway exchange (3 _GW ), the position where the call processing unit (32) is returned from the home memory station (6 ₁ ) via the common signal line (9) and the common signal line (8). The information (LI ₄ ) and the regulation determination result are received and analyzed (FIG. 11, step S113), and if the regulation determination result does not require regulation, the returned position information (LI ₄ ) is used.
The communication path unit (31) is controlled, and the called mobile telephone terminal (5 ₁ )
An incoming call connection is performed [step S115].

If the result of the analysis shows that the regulation determination result indicates that regulation is necessary, the regulation processing unit (35) is started. The activated regulation processing unit (35) activates the built-in voice response device, and generates a voice message to regulate incoming calls because the called mobile telephone terminal (5 ₁ ) is in a congested state, and makes a call. It is returned to the subscriber (21) [step S116].

The calling subscriber (21) that has heard the voice message immediately releases the call. Then, the subscriber of the fixed telephone network (2) (21), and attempted incoming call to the mobile telephone terminal of the mobile telephone network (1) in (5 _2), in the same manner as described above, the fixed telephone network (2 ) To the gateway exchange (3 _GW )
At [= (3 ₁ )], the incoming call request to the mobile telephone terminal (5 ₂ ) is transferred.

In the gateway exchange (3 _GW ), when the call processing unit (32) receives an incoming call request from the fixed telephone network (2) to the mobile telephone terminal (5 ₂ ) in the same manner as described above (step S111). via the incoming information necessary for switching connection to the called mobile telephone terminal (5 ₂₎ in order to obtain the (SD _T2), the common signal line (8) and the common channel signaling network (9), called The home memory station [for example, (6 ₂ )] that manages the mobile telephone terminal (5 ₂ ) is requested to _receive incoming information (SD _T2 ) (step S112).

In the home memory station (6 ₂ ), similarly to the above-mentioned home memory station (6 ₁ ), the incoming call information extracting section (66) sends the incoming call information from the gateway exchange (3 _GW ) to the mobile telephone terminal (5 ₂ ). When the request for the incoming call information (SD _T2 ) is received via the common signal line (8) and the common line signal network (9) [Step S121], the subscriber information file (61) is referred to and the called mobile station is moved. The incoming call information (SD _T2 ) in the subscriber information (SD ₂ ) corresponding to the telephone terminal (5 ₂ ) is extracted [Step S122].

[0060] Subsequently incoming information extraction section (66), the congestion level extraction unit extracts the existing location information (LI ₆₎ of the extraction already incoming information called mobile telephone terminal from (SD _T2) (5 ₂₎ ( 67), and requests the congestion level extraction unit (67) to extract a congestion level (CG) corresponding to the position information (LI ₆ ).

The congestion level extracting unit (67) searches the restriction table (62) by using the position information (LI ₆ ) transmitted from the incoming call information extracting unit (66), and correspondingly stores the stored congestion level (CG). ₃ ) Extract [= 75%] [Step S123].

Subsequently, the incoming call information extracting section (66) determines the existing position information (LI ₆ ) of the mobile telephone terminal (5 ₂ ) extracted from the extracted incoming call information (SD _T2 ) by the restriction judging section (6).
8), and requests the regulation determination unit (68) to extract the number of incoming calls (N _Q ) and the allowable number of incoming calls (N _A ) corresponding to the location information (LI ₆ ).

The restriction judging section (68) refers to the number-of-incoming-requests table (63) and finds out the number of incoming requests (N _Q6 ) corresponding to the position information (LI ₆ ) transmitted from the incoming information extracting section (66). [Step S124], and subsequently, referring to the allowable incoming call count table (64), and checking the incoming call information extracting unit (6).
The allowable number of incoming calls (N _A6 ) corresponding to the position information (LI ₆ ) transmitted from ₆ ) is extracted [Step S125].

Subsequently, the regulation determining unit (68) determines the number of incoming requests.
Number of incoming requests extracted from table (63) (N_Q6) To number
"1" is added, and from the allowable number of incoming call table (64)
The extracted allowable number of incoming calls (N_A6), Add the number "1" and add
Number of incoming requests after (N_Q6+1) (N)_A6
+1) [(N_A6+1) ÷ (N_Q6+1)] and congestion
The level extraction unit (67) extracts from the restriction table (62)
Congestion level (CG _Three) Is subtracted from the number "1"
[1-CG_Three[= 25%] [Step S
126].

As a result of the comparison, the number of incoming requests after addition (N _Q6 +
Ratio of the allowable number of incoming calls (N _A6 +1) to (1) [(N _A6 +
1) If (N _Q6 +1)] is less than the remaining number [1-CG ₃ ] [= 25%] obtained by subtracting the congestion level (CG ₃ ) from the number “1”, the incoming call request generated this time is It is determined that there is no need to restrict (step S126), and the result of the determination (regulation unnecessary) is transmitted to the incoming call information extraction unit (66).

As a result of the comparison, the number of incoming requests after addition (N
The ratio of the number of allowed calls (N _A6 +1) to ( _Q6 +1) [(N
_A6 +1) ÷ (N _Q6 +1)] is the remaining number [1-CG ₃ ] [= 25%] obtained by subtracting the congestion level (CG ₃ ) from the number “1”.
In the above case, it is determined that the incoming request generated this time needs to be regulated (step S126), and the result of the determination (restriction required) is transmitted to the incoming information extracting unit (66).

[0067] Incoming information extraction section (66), the called mobile telephone terminal already extracted from the subscriber information file (61) (5 ₂₎
Of the incoming call signal (SD _T2 ) and the result of the restriction determination [restriction unnecessary or restriction required] transmitted from the restriction determination unit (68) into a predetermined common line signal format, and the common signal line (8) and the common line Via the signaling network (9), it is returned to the requesting gateway exchange (3 _GW ) [step S127 or S12
8].

It should be noted that the regulation judging section (68) outputs the regulation judgment result.
When [Regulation not required] is sent, the number of incoming calls
(64) location information (LI₆) For incoming calls
(N _A6) To (N_A6+1) and [Step S
129], the position information of the incoming request number table (63)
(LI₆), The number of incoming requests (N_Q6) To (N_Q6+
1) [Step S12A], but the result of regulation determination
When [Regulation required] is transmitted, the allowable number of incoming calls table
(64) location information (LI₆) For incoming calls
(N_A6) Is (N_A6Number of incoming requests table without updating to +1)
Location information (LI)₆Incoming request corresponding to)
Number (N_Q6) Only (N_Q6+1) [Step S
12A].

In the gateway exchange (3 _GW ), as described above, the call processing unit (32) transmits the signal from the home memory station (6 ₂ ) via the common signal network (9) and the common signal line (8). The received position information (LI ₆ ) and the regulation determination result are received and analyzed (FIG. 11, step S113). If the regulation determination result does not require regulation, the returned position information (LI ₆ ) is received.
With _6), and controls communication channel unit (31), executes the incoming connection to the called mobile telephone terminal (5 ₂₎ [Step S11
5].

As a result of the analysis, if the regulation determination result indicates that regulation is necessary, the regulation processing section (35) is started. The activated regulation processing unit (35) activates the built-in voice response device, and generates a voice message to regulate incoming calls because the called mobile telephone terminal (5 ₁ ) is in a congested state, and makes a call. It is returned to the subscriber (21) [step S116].

The calling subscriber (21) that has heard the voice message immediately releases the call. As is clear from the above description, according to the embodiment of the present invention, each mobile telephone exchange (3) in the mobile telephone network (1) periodically sets the congestion state of the communication area (4) under management. When the congestion state reaches or exceeds a reference level, a predetermined congestion level (CG) is notified to all the home memory stations (6), and each communication in the mobile telephone network (1) is notified. The congestion state of the area (4) is automatically collected, and there is no need to install equipment such as a traffic control system separately from the mobile telephone network (1).

When an incoming call request is issued to the mobile telephone terminal (5) in the mobile telephone network (1) and the gateway exchange (3 _GW ) requests incoming information (SD _T ) to the home memory station (6). Then, the congestion level (CG) of the existing communication area (4) of the called mobile telephone terminal (5) is referred to, a restriction judgment of the generated incoming request is made, and based on the judgment result, the setting of the incoming connection or the state of congestion is performed. Will be implemented in accordance with the requirements.

FIGS. 2 to 13 are merely examples of the present invention. For example, the congestion recognizing unit (33) is limited to a unit that collects the use efficiency of the call processing unit (32). And many other variations are taken into account, such as collecting the usage rate of a communication line group connected to the communication area (4) [underlying base station] under management [the second embodiment]. However, the effect of the present invention does not change in any case. The exchange (200) and the home memory station (400) to which the present invention is applied are not limited to the mobile telephone exchange (3) and the home memory station (6) shown in FIG. Is not limited to the example illustrated in FIG. 4, but stores the congestion level (CG) corresponding to the position information (LI) and registers the registration display (R) as illustrated in FIG. [= logic "1"] is set to, or store incoming request number (N _Q) and the terminating allowable number (N _a) and the and the respective individual incoming allowable number table (64) the incoming request count table (63) Instead, many other deformations are considered, such as being stored in an integrated table, but the effect of the present invention does not change in any case. Further, the mobile telephone network (100) to which the present invention is applied is not limited to the illustrated mobile telephone network (1). For example, one mobile telephone exchange (3) has a plurality of communication areas (4). ), And many other variations are considered, but the effect of the present invention does not change in any case. .

[0074]

As described above, according to the present invention, in the mobile telephone network, the congestion level of each exchange is constantly detected by the exchange itself and reported to each home memory station, and the home memory station corresponds to the location information. At the stage when an incoming call to the mobile terminal occurs, the regulation corresponding to the congestion level can be executed, and the regulation system of the mobile telephone network can be quickly and accurately prepared, and No labor and no traffic control system other than the mobile telephone network are required, and the reliability and convenience of the mobile telephone network are greatly improved.

[Brief description of the drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a mobile telephone exchange according to an embodiment of the present invention.

FIG. 3 illustrates a home memory station according to an embodiment of the present invention.

FIG. 4 is a regulation table in FIG. 3;

FIG. 5 is an incoming request number table in FIG. 3;

FIG. 6 is a table showing an allowable number of incoming calls in FIG. 3;

FIG. 7 is a subscriber information file in FIG.

FIG. 8 shows another restriction table in FIG.

FIG. 9: Congestion recognition / notification processing in a mobile telephone exchange

FIG. 10 is a congestion level storage process in a home memory station.

FIG. 11: Incoming call processing in the mobile telephone exchange

FIG. 12 is a diagram illustrating an example of an incoming information extraction process and a regulation determination process in a home memory station.

FIG. 13 is a mobile telephone network to which the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 100 Mobile telephone network 2 Fixed telephone network 3 Mobile telephone exchange 4, 300 Communication area 5 Mobile telephone terminal 6, 400 Home memory station 7 Talk line 8 Common signal line 9 Common line signal network 21 Subscriber 31 Call path section 32 Call Processing Unit 33 Congestion Recognition Unit 34 Congestion Notification Unit 35 Restriction Processing Unit 61 Subscriber Information File 62 Restriction Table 63 Reception Request Number Table 64 Reception Allowed Number Table 65 Congestion Level Storage Unit 66 Reception Information Extraction Unit 67 Congestion Level Extraction Unit 68 Restriction determination unit 200 Switch 201 Congestion monitoring means 202 Congestion level notification means 301 Mobile terminal 401 Congestion level storage means 402 Restriction determination means

Claims (4)

[Claims] 1. A plurality of exchanges for controlling switching connection to mobile terminals existing in a mobile telephone network, and one or more home memory stations for registering position information for identifying an existing communication area of each mobile terminal. In the mobile telephone network comprising: in each of the exchanges, a congestion monitoring means for monitoring a communication congestion state in a communication area under management, and the congestion monitoring means has detected that the congestion state exceeds a predetermined standard In this case, a congestion level notifying unit that determines a congestion level indicating a regulation ratio corresponding to the current congestion state, and notifies the congestion level and the position information assigned to the communication area to each of the home memory stations. A congestion level storage unit that stores the congestion level and the location information notified from the congestion level notification unit of each of the exchanges in each of the home memory stations; Each time an inquiry about the incoming information of the called mobile terminal is received from the exchange in which the incoming request to the mobile terminal in the cellular telephone network has occurred, it corresponds to the location information of the called mobile terminal included in the incoming information. Counting and comparing the number of incoming requests generated and the allowable number of incoming calls, and whether the comparison result exceeds the congestion level stored in the congestion level storage means corresponding to the location information of the called mobile terminal. And a restriction judging means for judging the necessity of restriction of the incoming call request based on the analysis result, and notifying the restriction judgment result to the exchange of the inquiry source of the position information together with the position information, The exchange in which the incoming call request has occurred, based on the regulation determination result notified from the home memory station, connects the incoming call request to the called mobile terminal, or regulates the incoming call to the calling party. Notify incoming call restriction Mobile terminating regulating system and determining the. 2. The congestion monitoring means monitors a congestion state of the communication area under the management by a use efficiency of a call processing unit of a local exchange, and in response to a use efficiency exceeding the predetermined criterion,
2. The method according to claim 1, wherein the congestion levels correspond to each other.
The described incoming call restriction system. 3. The congestion monitoring means monitors a congestion state of the communication area under management by a usage rate of a mobile communication line group of the own communication area, and in response to a usage efficiency exceeding the predetermined criterion, 2. The mobile termination control system according to claim 1, wherein the congestion levels correspond to each other. 4. The restriction judging means initializes a count value of the number of incoming calls and the allowable number of incoming calls counted by the restriction judging means at the time when the new congestion level notified from the exchange is stored. Thereafter, each time the inquiry about the incoming call information arrives, after adding the number “1” to the number of incoming requests and the allowable number of incoming calls, respectively, the allowable number of incoming calls after the addition to the number of incoming requests after the addition If the ratio exceeds the congestion level stored in the congestion level storage means, after determining that the incoming call needs to be barred, the number of incoming requests remains the same as the value after adding the number “1”. The allowable number of incoming calls is returned to a value before the number “1” is added, and the ratio of the allowable number of incoming calls after the addition to the number of incoming requests after the addition is the congestion level already stored in the congestion level storage means. When the level falls below the level, the incoming call is received 2. The mobile termination control system according to claim 1, wherein after it is determined that the restriction is not required, the value obtained by adding the number "1" to the number of incoming calls and the allowable number of calls remains as it is.