JP2003060786A - Intelligent network, service control station, call processing and signal routing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intelligent network capable of composting a backup function of subscriber data and a signal transfer function in a service control station (SCP) and distributedly preserving subscriber data in multiple SCP. SOLUTION: A present station number is set in station data 23 of SCP 14. A host station number and a mate station number, which correspond to a global title, are recorded in a routing table 21. The routing table 21 is retrieved based on the global title in a signal received from a signal repeater station (STP) 12. It is discriminated whether a present station is a host station, a mate station or stations except for the stations, and a reception signal is processed in accordance with each case. In respective SCP, the host station number and the mate station number can freely be set for every global title, and subscriber data on M-pieces of host stations are backed up in N-pieces of mate stations.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching equipment and a signal relay station (Signaling Transfer Point).
t: STP), and service control station (Service)
The present invention relates to an intelligent network composed of Control Point (SCP), and particularly, from a switchboard to a signal connection control unit (Signaling Conn).
section control part (SCCP) by setting the subscriber number in the global title, the intelligent network that enables access to the service control station (SCP) that performs call processing, the service control station (SCP), and the call processing. Signal routing method.

[0002]

2. Description of the Related Art Conventional exchanges, signal relay stations (STP),
In an intelligent network (IN) composed of service control stations (SCP), in order to provide more advanced and convenient communication services, service control stations (S
The following functions are built into CP). (1) Function for realizing call processing and signal routing corresponding to a redundant configuration of a host station and a service control station (SCP) functioning as a mate station (for backup) (2) Further, a single configuration of the service control station (SCP) At this time, if there is no subscriber data in the service control station (SCP) of the signal destination specified by the global title (upper 5 to 7 digits) in the signal relay station (STP), the service control station (SCP) concerned A function to search the global title (all digits) using the routing table, identify the service control station (SCP) that has subscriber data, and perform call transfer

However, the conventional service control station (S
In CP), it is not possible to realize a configuration in which the backup function of (1) and the call transfer function of (2) are combined and deployed, and therefore it is inconvenient when constructing an intelligent network (IN). However, the processing efficiency of the call processing and signal routing functions has been reduced.

In addition, in the host-mate backup function of (1) above, one host station and one mate station are determined with respect to one host station. Therefore, the M: N configuration of the host station and the mate stations (where M and N can be freely set) is such that the subscriber data of the M host stations are provided to the N mate stations and backed up mutually. We were not able to deal with it, and there was little freedom in constructing a backup system in the intelligent network (IN).

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and combines a backup function and a call transfer function in the service control station (SCP) described above, and a host station and a mate station. , M: N, which allows the subscriber data of the host station to be stored in any mate station,
It is an object to provide a service control station (SCP) and a call processing and signal routing method.

[0006]

The present invention has been made to solve the above problems, and in an intelligent network according to the present invention, an exchange, a signal relay station (STP), a host station and a mate station. In an intelligent network composed of redundant service control stations (SCPs) that function as the above, the exchange sets a subscriber number in the global title of a signal connection control unit and transmits a signal to a signal relay station (STP). The signal relay station (STP) is provided with a signal routing number setting means for setting a service control station (SCP) as a signal destination based on the upper predetermined digit number of the global title in the signal received from the exchange. A signal routing number translating means for specifying and transmitting the received signal to the service control station, The service control station (SCP), a subscriber database for registering the subscriber data to be call processing own station for each global title as a host station, and a subscriber data to back up the other stations as mate station,
A routing table in which the host station number and mate station number corresponding to each global title are recorded, station data for registering the service control station (SCP) number of its own station, and received from the signal relay station (STP) Based on the global title in the received signal, the routing table is searched to derive the host station number and mate station number for the received signal, and the derived host station number and mate station number It is characterized by further comprising signal routing means for determining whether or not the station number matches, and selecting whether the local station executes call processing or transfers the received signal to another station.

As a result, the service control station (SCP)
In addition to having a dual configuration that functions as a host station and a mate station, the service control station (SCP) further responds to the received signal by saying that its own station is "host station, mate station,
If it is determined that it is neither of them, call processing and signal routing according to each case can be appropriately performed. Therefore, the intelligent network can be effectively constructed. In addition, call processing and signal routing in the intelligent network can be efficiently performed.

In the intelligent network of the present invention, the service control station (SCP) is
In the case where the derived host station number matches the own station number, means for performing call processing by the own station, and when the derived mate station number matches the own station number. Transmits the signal to the corresponding host station, and if the signal cannot be transmitted to the host station, it performs call processing by itself, and the derived host station number and mate station number. When both do not match with the own station number, a signal is transferred to the corresponding host station, and when the signal cannot be transferred to the host station, means for transferring the signal to the corresponding mate station is further provided. It is characterized by

[0009] Thus, in addition to providing the service control station (SCP) with a dual structure that functions as a host station and a mate station, the service control station (SCP) further determines whether the own station is a "host station" in response to a received signal. , Mate station, or neither of them ”, it is possible to appropriately perform call processing and signal routing according to each case. Therefore, the intelligent network can be effectively constructed. In addition, call processing and signal routing in the intelligent network can be efficiently performed.

Further, in the intelligent network of the present invention, means for storing subscriber data managed as a host station in a distributed manner among a plurality of other mate stations, and a global title for each host station and each mate station. Means for arranging a routing table common to each station in which the corresponding host station number and mate station number are recorded, and the host station and the mate station are constituted by M: N.

As a result, there is no restriction on the correspondence relationship between the host station and the mate station, the destination of the subscriber data can be freely decided for each global title, and the subscriber data (mates) of the M host stations can be freely decided. "M: N configuration" in which N is backed up by Mate stations becomes possible. Therefore, the flexibility of the configuration of the host station and the mate station on the network is increased. Also, an intelligent network can be built effectively. Furthermore, call processing and signal routing in the intelligent network can be efficiently performed.

Further, the service control station (SCP) of the present invention
, A switch for setting a subscriber number to a global title of a signal connection control unit, a signal relay station (STP) for relaying and transmitting a signal by specifying a service control station to which the signal is transmitted from the global title, and a host. Service control station (SC
P) is the service control station (SCP) in the intelligent network, which is subscriber data for performing call processing for each global title using its own station as a host station, and subscriber data for backing up another station as a mate station. A subscriber database for registering, and a routing table in which host station numbers and mate station numbers corresponding to the global titles are recorded, station data for registering the service control station (SCP) number of its own station, Routing table search means for searching the routing table based on the global title in the received signal received from the signal relay station (STP) and deriving a host station number and a mate station number for the received signal; Determine whether the host station number and mate station number match your own station number. Or to the own station performs the call processing,
Alternatively, a signal routing means for selecting whether to transfer the received signal to another station is provided.

As a result, in addition to providing the service control station (SCP) with a dual structure that functions as a host station and a mate station, the service control station (SCP) further determines whether the own station is a "host station" in response to a received signal. , Mate station, or neither of them ”, it is possible to appropriately perform call processing and signal routing according to each case. Therefore, call processing and signal routing in the service control station (SCP) and the intelligent network can be efficiently performed.

Further, the service control station (SCP) of the present invention
In the service control station (SCP), when the derived host station number matches the own station number, means for performing call processing by the own station, and the derived mate station. If the number matches the own station number, the signal is transferred to the corresponding host station, and if the signal cannot be transferred to the host station, the own station performs call processing. , If both the derived host station number and the mate station number do not match the own station number,
It further comprises means for transferring a signal to the corresponding host station and transferring the signal to the corresponding mate station when the signal cannot be transferred to the host station.

As a result, in addition to providing the service control station (SCP) with a dual structure that functions as a host station and a mate station, the service control station (SCP) further determines that the own station is a "host station" in response to a received signal. , Mate station, or neither of them ”, it is possible to appropriately perform call processing and signal routing according to each case. Therefore, call processing and signal routing in the service control station (SCP) and the intelligent network can be efficiently performed.

The call processing and signal routing method in the intelligent network of the present invention comprises a switchboard, a signal relay station (STP), and a dual service control station (SCP) functioning as a host station and a mate station. In the call processing and signal routing method in an intelligent network according to the present invention, the exchange performs a signal routing number setting procedure for setting a subscriber number in a global title of a signal connection control unit and transmitting a signal to a signal relay station (STP). , The signal relay station (STP) specifies a service control station (SCP) as a signal transmission destination based on the upper predetermined digit number of the global title in the signal received from the exchange, and the service control station receives the received signal. A signal routing number translation procedure to send the signal is performed and the A procedure for registering subscriber data for performing call processing for each global title as a host station and subscriber data for backing up another station as a mate station by a service control station (SCP) in the subscriber database, and For each title, the procedure of registering the host station number and the mate station number corresponding to them in the routing table, the procedure of registering the service control station (SCP) number of the own station as station data, and the signal relay station (ST
P), a routing table search procedure for searching the routing table based on the global title in the received signal, and deriving a host station number and a mate station number for the received signal, and the derived host station number and mate Determine whether the station number matches your own number,
And a signal routing procedure for selecting whether the own station executes call processing or transfers a received signal to another station.

As a result, the service control station (SCP)
In addition to having a dual configuration that functions as a host station and a mate station, the service control station (SCP) further responds to the received signal by saying that its own station is "host station, mate station,
If it is determined that it is neither of them, call processing and signal routing according to each case can be appropriately performed. Therefore, an intelligent network can be built effectively. In addition, call processing and signal routing in the intelligent network can be efficiently performed.

Further, the call processing and signal routing method in the intelligent network of the present invention, when the derived host station number matches the own station number by the service control station (SCP), If the procedure for performing call processing by a station and the derived mate station number match the own station number, the signal transfer to the corresponding host station and the signal transfer to the host station cannot be performed. If you do, the procedure for call processing by your own station,
If both the derived host station number and the mate station number do not match the own station number, the signal is transferred to the corresponding host station, and if the signal cannot be transferred to the host station, the corresponding mate is sent. The procedure for transferring a signal to a station is further performed.

As a result, in addition to providing the service control station (SCP) with a dual configuration that functions as a host station and a mate station, the service control station (SCP) further determines whether the own station is a "host station" in response to a received signal. , Mate station, or neither of them ”, it is possible to appropriately perform call processing and signal routing according to each case. Therefore, the intelligent network can be effectively constructed. In addition, call processing and signal routing in the intelligent network can be efficiently performed.

Further, the call processing and signal routing method in the intelligent network of the present invention includes a procedure for distributing and storing subscriber data managed as a host station in a plurality of other mate stations, each host station and each mate station. The station further comprises a procedure for arranging a routing table common to each station in which a global title and corresponding host station number and mate station number are recorded, and the host station and the mate station are configured by M: N. .

As a result, there is no restriction on the correspondence relationship between the host station and the mate station, the destination of the subscriber data can be freely determined for each global title, and the subscriber data (mate) of the M host stations. "M: N configuration" in which N is backed up by Mate stations becomes possible. Therefore, the flexibility of the configuration of the host station and the mate station on the network is increased. Also, an intelligent network can be built effectively. Furthermore, call processing and signal routing in the intelligent network can be efficiently performed.

The service control station (SCP) of the present invention
The call processing and the signal routing method of the above are a switch for setting the subscriber number to the global title of the signal connection control unit,
A signal relay station (ST) that relays and transmits a signal by specifying a service control station to which the signal is to be transmitted from the global title.
P), and a call processing and signal routing method of the service control station in an intelligent network composed of a duplicated service control station (SCP) functioning as a host station and a mate station, wherein Procedure for registering subscriber data that performs call processing as a host station and subscriber data that backs up other stations as a mate station, and the host station number and mate station number corresponding to each global title On the basis of the global title in the received signal received from the signal relay station (STP), the procedure of registering and in the routing table, the procedure of registering its own service control station (SCP) number as station data, and The routing table is searched, and the host station number and mate station for the received signal Routing table search procedure for deriving the number, and determining whether the derived host station number and mate station number match the own station number, and the own station executes call processing, or the received signal is sent to another station. And a signal routing procedure for selecting whether to transfer.

As a result, in addition to providing the service control station (SCP) with a dual structure that functions as a host station and a mate station, the service control station (SCP) further determines whether the own station is a "host station" in response to a received signal. , Mate station, or neither of them ”, it is possible to appropriately perform call processing and signal routing according to each case. Therefore, call processing and signal routing in the service control station (SCP) and the intelligent network can be efficiently performed.

Also, the service control station (SCP) of the present invention
In the call processing and signal routing method, the service control station (SCP) performs the call processing by the local station when the derived host station number matches the local station number, and If the derived mate station number matches the own station number, the signal is transferred to the corresponding host station, and if the signal cannot be transferred to the host station, call processing is performed by the own station. If both the derived host station number and the mate station number do not match the own station number, the signal is transferred to the corresponding host station and the signal cannot be transferred to the host station. And a procedure for transferring a signal to the corresponding mate station are further performed.

As a result, in addition to providing the service control station (SCP) with a dual structure that functions as a host station and a mate station, the service control station (SCP) further determines whether the own station is a "host station" in response to a received signal. , Mate station, or neither of them ”, it is possible to appropriately perform call processing and signal routing according to each case. Therefore, call processing and signal routing in the service control station (SCP) and the intelligent network can be efficiently performed.

Further, the computer-readable recording medium of the present invention is an intelligent network composed of a switchboard, a signal relay station (STP), and a service control station (SCP) of a duplicated structure which functions as a host station and a mate station. In the computer in the service control station (SCP) in the above, the subscriber data for performing the call processing for each global title as the host station and the subscriber data for backing up other stations as the mate station are registered in the subscriber database. A procedure for registering the host station number and mate station number corresponding to each global title in the routing table, a procedure for registering the service control station (SCP) number of its own station as station data, and The global title in the received signal received from the signal relay station (STP) , A routing table search procedure for deriving the host station number and mate station number for the received signal by searching the routing table, and determining whether the derived host station number and mate station number match the own station number. However, it is a computer-readable recording medium in which a program is recorded in order to execute a signal routing procedure for selecting whether the local station executes call processing or transfers a received signal to another station.

Further, the computer program of the present invention is the service control in an intelligent network composed of a switchboard, a signal relay station (STP), and a dual service control station (SCP) functioning as a host station and a mate station. A procedure for registering, in a computer within a station (SCP), subscriber data for performing call processing for each global title as a host station and subscriber data for backing up another station as a mate station in a subscriber database; For each global title, the procedure of registering the host station number and mate station number corresponding to them in the routing table, and the service control station (SC
P) A procedure for registering the number as station data, and a search for the routing table based on the global title in the received signal received from the signal relay station (STP), and the host station number and mate station number for the received signal. The routing table search procedure for deriving, and determining whether the derived host station number and mate station number match the own station number, and the own station executes call processing or transfers the received signal to another station. And a computer program for executing a signal routing procedure for selecting whether to perform.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a configuration example of an intelligent network (IN) according to the present invention.
Is a common line signaling network, 10 is an exchange, 12 is a signal relay station (S
TP) and 14 are service control stations (SCP). In addition, in FIG. 1, an exchange and a signal relay station (ST
P), the service control station (SCP) typically shows only two, but in reality, it may be composed of a larger number.

FIG. 2 is a diagram showing a functional configuration example of each system forming the intelligent network (IN). In FIG. 2, the exchange 10 is equipped with a signal routing number setting function 11, which enables the signal relay station (ST
P) 12 has a signal routing number translation function 13. Further, the service control station (SCP) 14 has a signal routing function 15, a routing table search function 15a, a station number comparison function 15b, a signal processing method determination function 15c, a signal transfer function 15d, a call processing function 16, and a database 20. There is. In FIG. 2, the exchange, the signal relay station (STP), the service control station (SC
P) typically shows only two, but may actually be composed of a larger number.

In FIG. 2, the service control station (SCP)
The database 20 in 14 includes a routing table 21, a subscriber database 22, and station data 23. The subscriber database 22 includes subscriber data (host) 31 for which the service control station (SCP) 14 itself performs call processing as a host station, as illustrated in the example of the subscriber database in FIG. Subscriber data (mate) 32 to be backed up as a mate station is recorded. The station data 23 is a station number set to identify each service control station (SCP) 14 as illustrated in the example of the station data in FIG. 5, and in the case of this example, the station number Is set to "# 1". The host table number and the mate station number corresponding to each global title are set in the routing table 21 as illustrated in the example of the routing table of FIG.

In the exchange 10 shown in FIG. 2, the signal routing number setting function 11 mainly sets a subscriber number as a global title from the exchange 10,
It is a function of transmitting a signal to the signal relay station (STP) 12.

The signal relay station (STP) 1 shown in FIG.
In 2, the signal routing number translation function 13 displays the upper 5 to 7 digits of the global title of the signal received by the signal relay station (STP) 12 from the exchange 10 (when the number of digits is limited and all digits are not referred). Based on this, the service control station (SCP) 14 that is the transmission destination is specified and a signal is transmitted.

Further, the service control station (SC
In P) 14, the signal routing function 15 includes the following functions. The routing table search function 15a searches the routing table 21 based on the global title in the received signal received from the signal relay station (STP) 12, and derives the host station number and the mate station number for the received signal. The station number comparison function 15b refers to the station data 23 and determines whether the host station number or the mate station number matches the own station number.・ Signal processing method judgment function 15c is station number comparison function 15
Based on the comparison result in b, it is judged whether the own station executes the call processing or transfers the received signal to another station. It also has a function of activating the call processing function 16 and the signal transfer function 15d. The signal transfer function 15d is a function for transferring a signal received from the signal relay station (STP) 12 to another service control station (SCP) 14. The call processing function 16 is activated by the signal routing function 15 and has a function of accessing the subscriber database 22 and performing call processing.

FIG. 3 is a diagram showing a configuration example of the service control station (SCP) 14 according to the present invention, and shows only a portion directly related to the present invention. In FIG. 3, 101 is a communication interface for connecting the service control station (SCP) 14 to the common signaling network 1, 102 is a control unit for integrally controlling the service control station (SCP) 14, 1
Reference numeral 10 is a processing program section, and 120 is a database. In this embodiment, the service control station (SC
P) 14 will be described as a computer such as a server.

In FIG. 3, the processing program section 110 includes the following processing sections. The database search processing unit 111 includes the routing table 21, the subscriber database 22, and the station data 23.
To search for. For example, the routing table 21 is searched from the received global title, and the processing of deriving the host station number and the mate station number is performed. The station number comparison processing unit 112 determines whether the own station number recorded in the station data 23 matches the host station number or the mate station number derived from the routing table 21. The signal processing method determination processing unit 113 determines, based on the comparison result in the station number comparison processing unit 112, whether the local station executes call processing or transfers the received signal to another station.
In addition, processing for activating the signal transfer processing unit 114 and the call processing unit 115 is performed. The signal transfer processing unit 114 is a signal relay station (STP) 12
Alternatively, it performs a process of transferring a signal received from another service control station (SCP) to another service control station (SCP). The call processing unit 115 is a processing unit that accesses the subscriber database 22 and executes call processing. The database registration processing unit 116 is the database 20.
Is a processing unit that registers data to the.

The processing program section 110 may be realized by dedicated hardware, and the processing program section is constituted by a general-purpose information processing device such as a memory and a CPU (central processing unit). A program (not shown) for realizing the function of the processing unit may be loaded into the memory and executed to realize the function. Further, it is assumed that an input device, a display device, etc. (none of which is displayed) are connected to the server as peripheral devices. Here, the input device refers to an input device such as a keyboard and a mouse. The display device refers to a CRT (Cathode Ray Tube), a liquid crystal display device, or the like.

In the database 20, a "routing table 21", a "subscriber database 22",
"Station data 23" is included. The contents of these data have already been described in the description of FIG. 2 described above, and the description thereof will be omitted.

Next, the flow of operation in the intelligent network according to the present invention shown in FIG. 2 will be described using a concrete example.

[When the Received Signal is Processed as a Host Station] FIG. 7 is a diagram showing the operation when the service control station (SCP) processes the received signal as a host station. , Signal Relay Station (STP) 1
2 shows a processing flow when it is determined that the signal received from No. 2 needs to be processed as a host station. In FIG. 7, the service control station (SC
P) 14 may also receive signals by signal transfer from other service control stations (SCP).

FIG. 8 is a diagram showing the operation in the service control station (SCP) when the received signal is processed as a host station. In FIG. 8, "arrowed line A, arrowed line B, arrowed line" is shown. Line C, arrow-attached line D, arrow-attached line E ”are operated in this order. In addition,
In the example shown in FIG. 8, the processing in the exchange 10 and the signal relay station (STP) 12 is not shown.

The operation flow of this example will be described below with reference to FIG. (1) For example, by the signal routing number setting function 11 of the exchange 10, the global title “0120
-111-1111 "is set and the signal relay station (STP)
12 (step S11).

(2) In the signal relay station (STP) 12, the signal routing number translation function 13 is used, based on the upper 5 to 7 digits of the global title of the received signal, the service control station (SCP) to which the signal is transmitted. ) 14 is specified and a signal is transmitted (step S12).

(3) In the service control station (SCP) 14 that has received the signal from the signal relay station (STP) 12, the signal routing function 15 is activated, and based on the global title "0120-111-1111", The routing table 21a shown in 8 is searched, and the host station number (# 1) and the mate station number (# 2) are obtained as a result (step S13).

(4) Also, the service control station (SCP) 1
The signal routing function 15 in 4 refers to the station data 23a shown in FIG. 8 and compares the host station number and mate station number with the own station number, and the result is "host station number (# 1)".
= Own SCP number (# 1) ", it is determined that" the received signal needs to be processed as a host station ", and the call processing function 16 is activated (step S14). The activated call processing function 16 is "0" in the subscriber data (host) 31a registered in the subscriber database 22a (Fig. 8).
120-111-1111 "to execute call processing (step S15).

Next, the flow of operation in the service control station (SCP) 14 in this example will be described with reference to FIG. (1) The service control station (SCP) 14 receives the signal of the global title “0120-111-1111” (arrowed line A). (2) By the operation of the signal routing function 15 in the service control station (SCP) 14, the routing table 21
Searching for a, the global title "0120-111-
The host station number (# 1) and the mate station number (# 2) corresponding to "1111" are derived (arrowed line B). (3) Referring to the station data 23a, the "host station number (#
1) = own SCP number (# 1) "(arrowed line C). (4) The call processing function 16 is activated in order to perform call processing at the own station (arrowed line D). (5) The call processing function 16 is activated to access "0120-111-1111" of the subscriber data (host) 31a (arrow line E).

[When a Received Signal is Processed as a Mate Station] FIG. 9 is a diagram showing an operation when the service control station (SCP) processes a received signal as a mate station. Signal relay station (STP) 12
It shows a flow of processing in the case where it is determined that the signal received from is required to be processed as a mate station. In FIG. 9, the service control station (SC
P) 14 receives the signal from the signal relay station (STP) 12, but may receive the signal by signal transfer from another service control station (SCP).

FIG. 10 is a diagram showing the operation in the service control station (SCP) when the received signal is processed as a mate station. In FIG. 10, "arrow line A, arrow line B, arrow line" C, arrowed line D, arrowed line E, arrowed line F ”in this order. In the example shown in FIG. 10, the processing in the exchange 10 and the signal relay station (STP) 12 is not shown.

The operation flow of this example will be described below with reference to FIG. (1) For example, by the signal routing number setting function 11 of the exchange 10, the global title “0120
-222-1111 "is set and the signal relay station (STP)
12 (step S21).

(2) In the signal relay station (STP) 12, the signal routing number translation function 13 is used to send a signal to the service control station (SCP) based on the upper 5 to 7 digits of the global title of the received signal. ) 14 is specified and a signal is transmitted (step S22).

(3) In the service control station (SCP) 14 that has received the signal from the signal relay station (STP) 12, the signal routing function 15 is activated, and based on the global title "0120-222-1111", The routing table 21a shown in 10 is searched, and the host station number (# 2) and the mate station number (# 1) are obtained as a result.
(Step S23).

(4) The signal routing function 15 is shown in FIG.
By referring to the station data 23a shown in 0, the host station number and mate station number are compared with the own station number, and the result is "mate station number (# 1) = own SCP number (# 1)". , "Process the received signal as a mate station", and transfer the signal to the host station # 2 (step S24). However, if the signal cannot be transferred to the host station (# 2), the signal routing function 15 activates the call processing function 16 to perform the call processing by itself (step S25).

(5) The activated call processing function 16 has the subscriber number "0120-222-" recorded in the subscriber data (mate) 32a of the subscriber database 22a (FIG. 10).
1111 "to execute call processing (step S
26).

Next, the flow of operation in the service control station (SCP) 14 in this example will be described with reference to FIG. (1) The service control station (SCP) 14 receives the signal of the global title "0120-222-1111" (arrowed line A). (2) By the operation of the signal routing function 15 in the service control station (SCP) 14, the routing table 21
Searching for a, the global title "0120-222-
The host station number (# 2) and the mate station number (# 1) corresponding to "1111" are derived (arrowed line B). (3) Referring to the station data 23, “Mate station number (# 1)
= Own SCP number (# 1) "(arrowed line C). (4) The signal is transferred to the host station (# 2) (arrowed line D). (5) If the call cannot be transferred to the host station (# 2), the call processing function 16 is activated (arrow line E). (6) The call processing function 16 is activated to access "0120-222-1111" of the subscriber data (mate) 31a (arrowed line F).

[Processing when it is determined to be other than the host station and mate station] FIG. 11 is a diagram showing an operation when the service control station (SCP) is determined to be other than the host station and the mate station. It is a figure for demonstrating the flow of a process when it determines with the signal received by the control station (SCP) 14 "It is necessary to process other than a host station and a mate station." Although the service control station (SCP) 14 receives the signal from the signal relay station (STP) 12 in FIG. 11, it may also receive the signal by signal transfer from another service control station (SCP).

FIG. 12 is a diagram showing an operation example in the service control station (SCP) when it is determined to be other than the host station and the mate station, and shows a flow of processing in the service control station (SCP). The arrow A in FIG.
The arrowed line B, the arrowed line C, the arrowed line D, and the arrowed line E "operate in this order. In the example shown in FIG. 12, the exchange 10
Also, the processing in the signal relay station (STP) 12 is not shown.

The operation flow of this example will be described below with reference to FIG. (1) For example, by the signal routing number setting function 11 of the exchange 10, the global title “0120
-333-1111 "is set and the signal relay station (STP)
12 (step S31).

(2) In the signal relay station (STP) 12, the signal routing number translation function 13 is used, based on the upper 5 to 7 digits of the global title of the received signal, to the service control station (SCP) to which the signal is transmitted. ) 14 is specified and a signal is transmitted (step S32).

(3) In the service control station (SCP) 14 that has received the signal from the signal relay station (STP), the signal routing function 15 is activated and the global title "0"
120-333-2222 ", the routing table 21a shown in FIG. 12 is searched, and as a result, the host station number (# 3) and mate station number (# 4) are obtained (step S33).

(4) The signal routing function 15 is shown in FIG.
2 compares the host station number and mate station number with the own station number, and the result is "host station number (# 3) ≠ own SCP number (# 1)" and "mate". Since the station number (# 4) ≠ own SCP number (# 1) ”, it is determined that the received signal is“ necessary to be processed as a station other than the host station and mate station ”and directed to the host station (# 3). To transfer the signal (step S34). However, if the signal cannot be transferred to the host station (# 3), the signal routing function 15 transfers the signal to the mate station (# 4) (step S35).

Next, the flow of operation in the service control station (SCP) 14 in this example will be described with reference to FIG. (1) The service control station (SCP) 14 receives the signal of the global title "0120-333-1111" (arrow line A). (2) By the operation of the signal routing function 15 in the service control station (SCP) 14, the routing table 21
Searching for a, the global title "0120-333-
The host station number (# 3) and the mate station number (# 4) corresponding to "1111" are derived (arrowed line B). (3) With reference to the station data 23, “host station number (# 3)
≠ own SCP number (# 1) "and" mate station number (# 4) "
≠ "Self SCP number (# 1)" (arrowed line C). (4) The signal is transferred to the host station (# 3) (arrowed line D). (5) If the signal cannot be transferred to the host station (# 3), the signal is transferred to the mate station (# 4) (arrow line E).

[Processing when host station and mate station have M: N configuration] FIG. 13 is a diagram showing an example of M: N configuration of the host station and the mate station. An example in which a station and a station are configured in a ratio of 3: 2 is shown. That is, in this example, the subscriber data of each host station can be distributed and stored in a plurality of mate stations. For example, the subscriber data of "number under the control of 0120-300" in the host B is backed up by the mate station D, and "0120-
The mate station E backs up the subscriber data of "number under 400".

Further, the routing table 41 common to each station shown in the lower right part of FIG. 13 is set to each service control station (SCP).
To have. Thereby, in any service control station (SCP), the host station number and the mate station number of the subscriber data corresponding to the received global title are obtained, and by comparing with the own station number set in each station, It is possible to determine whether the received signal should be processed by the own station or transferred to another station.

As described above, each service control station (SCP)
Then, it is possible to freely set the host station number and mate station number for each global title, and search the routing table common to each station using the global title as a key to derive the host station number and mate station number. Therefore, there is no restriction on the correspondence between the host station and the mate station, and the destination of the subscriber data can be determined for each global title.

In this example, the case of "configuration of host station to mate station 3: 2" is taken as an example, but a general M: N
Even with the configuration, by using a common routing table that can derive the host station number (#) and the mate station number (#) using the global title as a key, subscriber data (host) for each subscriber number, A service control station (SCP) for storing subscriber data (mate) can be freely selected.

Although the intelligent network of the present invention, the service control station (SCP) and the like have been described above, the present invention is not limited to the above-mentioned illustrated examples, and is within the scope not departing from the gist of the present invention. Of course, various changes can be made. Further, in the above-described embodiment, the service control station (SCP) 14 is a computer, but a program for realizing the function of the service control station (SCP) 14 may be executed by another computer. A service control station (SCP) is a computer that provides the functions described above, and also a location that includes a computer that provides the functions described above.

Further, the service control station (SCP) 1 shown in FIG.
The service control of the present invention is performed by recording a program for realizing the functions of No. 4 in a computer-readable recording medium, reading the program recorded in this recording medium into a service control station (SCP) 14, and executing the program. Processing for realizing the function of the station (SCP) may be performed.

The "computer-readable recording medium" means a flexible disk, a magneto-optical disk,
A portable medium such as a ROM or a CD-ROM, or a storage device such as a hard disk built in a computer system. Further, the "computer-readable recording medium" is a volatile memory (RAM) inside a computer system that serves as a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. As described above, the one that holds the program for a certain period of time is also included.

Further, the above program may be transmitted from a computer system that stores the program in a storage device to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the "transmission medium" for transmitting the program means a medium for transmitting information such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.

[0069]

As described above, in the intelligent network of the present invention, the own station number is set in the station data of each service control station (SCP) and the host station number corresponding to the global title is set in the routing table. And set the mate station number, search the routing table based on the global title in the signal received from the signal relay station (STP), "I am not a host station, mate station, or neither host station nor mate station" Since it was decided to perform processing according to each case, the service control station (SCP) has a dual configuration in which it functions as a host station and a mate station, and further services are provided. In the control station (SCP), it is judged that the own station is “host station, mate station, or neither” for the received signal. In case, suitably perform the call processing and signal routing in accordance with each case. Therefore, an intelligent network can be built effectively. In addition, call processing and signal routing in the intelligent network can be efficiently performed.

Further, in the intelligent network of the present invention, the service control station (SCP) which receives the signal from the exchange searches the routing table based on the global title of the received signal, and the own station number is the host station. If it matches the number, the received signal is processed as a host station, if it matches the mate station number, the received signal is transferred to the corresponding host station, and if the own station number does not match the host station number and mate station number Sends a signal to the host station corresponding to the host station number, and if not, transfers the signal to the mate station corresponding to the mate station number. As a result, in addition to making the service control station (SCP) a dual configuration that functions as a host station and a mate station, the service control station (SCP) further responds to the received signal by saying that its own station is the "host station or mate station". Call processing and signal routing in the case where it is determined that "or neither". Therefore, the intelligent network can be effectively constructed. In addition, call processing and signal routing in the intelligent network can be efficiently performed.

In the intelligent network of the present invention, each service control station (SCP) can freely set a host station number and a mate station number for each global title, and the global title is used as a common key for each station. Search the routing table for
Since it is possible to derive the host station number and the mate station number, this eliminates restrictions on the correspondence between the host station and the mate station, and it is possible to freely decide the deployment destination of the subscriber data for each global title, An “M: N configuration” is possible in which subscriber data (mates) of M host stations is backed up by N mate stations. Therefore, the flexibility of the configuration of the host station and the mate station on the network is increased. Also, an intelligent network can be built effectively. Furthermore, call processing and signal routing in the intelligent network can be efficiently performed.

The service control station (SCP) of the present invention
In the above, the service control station (SCP) that receives the transmission signal from the exchange searches the routing table based on the global title of the reception signal, and the host station number and mate station number corresponding to the global title. If the own station number matches the host station number, the received signal is processed as the host station, and if the own station number matches the mate station number, the received signal is processed as the mate station. Further, when the own station number does not match the host station number and the mate station number, the corresponding process is performed. Therefore, the service control station (SCP) is configured as a dual configuration that functions as the host station and the mate station. In addition, when the service control station (SCP) judges that the own station is “host station, mate station, or neither” in response to the received signal, call processing corresponding to each case is performed. And signal routing can be done properly. For this reason,
Efficient call processing and signal routing in service control stations (SCP) and intelligent networks

Further, in the call processing and signal routing method in the intelligent network of the present invention, the own station number is set in the station data of each service control station (SCP), and the host station corresponding to the global title is set in the routing table. Number and mate station number are set, the routing table is searched based on the global title in the signal received from the signal relay station (STP), and "whether the own station is a host station, a mate station, or a host station or a mate station" It is determined whether there is any, and the processing according to each case is performed. Therefore, the service control station (S
In addition to the dual configuration of the CP serving as the host station and the mate station, the service control station (SC)
In P), when it is determined that the receiving station is “host station, mate station, or neither” with respect to the received signal, call processing and signal routing according to each case can be appropriately performed. Therefore, an intelligent network can be built effectively. In addition, call processing and signal routing in the intelligent network can be efficiently performed.

Further, in the call processing and signal routing method in the intelligent network of the present invention, the service control station (SC) which receives the signal from the exchange.
P) searches the routing table based on the global title of the received signal, processes the received signal as a host station if its own station number matches the host station number, and receives it if it matches the mate station number. Transfer the signal to the corresponding host station, and if the own station number does not match the host station number and mate station number, transfer the signal to the host station corresponding to the host station number, and if not, the mate station number The signal is transferred to the mate station corresponding to. As a result, in addition to making the service control station (SCP) a dual configuration that functions as a host station and a mate station, the service control station (SCP) further responds to the received signal by saying that its own station is the "host station or mate station". Or it is neither of them ”, it is possible to appropriately perform call processing and signal routing corresponding to each case. Therefore, the intelligent network can be effectively constructed. In addition, call processing and signal routing in the intelligent network can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of an intelligent network according to the present invention.

FIG. 2 is a diagram showing a functional configuration example of each system that constitutes an intelligent network.

FIG. 3 is a diagram showing a configuration example of a service control station (SCP).

FIG. 4 is a diagram showing an example of a subscriber database.

FIG. 5 is a diagram showing an example of station data.

FIG. 6 is a diagram showing an example of a routing table.

FIG. 7 is a diagram showing an operation when a received signal is processed as a host station.

FIG. 8 is a diagram showing an operation in a service control station (SCP) when a received signal is processed as a host station.

FIG. 9 is a diagram showing an operation when a received signal is processed as a mate station.

FIG. 10 is a diagram showing an operation in a service control station (SCP) when a received signal is processed as a mate station.

FIG. 11 is a diagram showing an operation when it is determined that the host station is not the host station or the mate station.

FIG. 12 is a diagram showing an operation in a service control station (SCP) when it is determined to be other than a host station and a mate station.

FIG. 13 is a diagram showing a configuration example of M: N of a host station and a mate station.

[Explanation of symbols] 1 common line signal network 10 exchanges 11 Signal routing number setting function 12 Signal relay station (STP) 13 Signal routing number translation function 14 Service Control Station (SCP) 15 Signal routing function 15a Routing table search function 15b Station number comparison function 15c Signal processing method judgment function 15d signal transfer function 16 Call processing function 20 databases 21, 21a, 41 Routing table 22, 22a Subscriber database 23, 23a station data 31, 31a Subscriber data (host) 32, 32a Subscriber data (mate) 110 Processing program section 111 Database search processing unit 112 Station number comparison processor 113 signal processing method determination processing unit 114 signal transfer processing unit 115 Call Processor 116 Database registration processing unit

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hirozumi Ishibashi             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation F-term (reference) 5K024 AA00                 5K030 GA12 HC01 KA05 KA06 LB01                       LB05 MD02                 5K051 BB01 BB02 CC01 CC02 DD01                       EE01 EE02 FF01 HH04 HH11                 5K064 AA02 AA12 DC11

Claims (12)

[Claims] 1. An intelligent network including a switch, a signal relay station (STP), and a service control station (SCP) having a redundant configuration that functions as a host station and a mate station, wherein the switch has a signal connection control unit. Of the global title in the signal received from the exchange. The signal relay station (STP) is provided with a signal routing number setting means for setting a subscriber number to the global title of (1) and transmitting a signal to the signal relay station (STP). The service control station (SCP), which is a signal destination, is specified based on the upper predetermined number of digits, and a signal routing number translating means for transmitting the received signal to the service control station is provided. ) Indicates subscriber data for call processing for each global title as the host station and other stations as mate stations. Subscriber database for registering subscriber data to be backed up, routing table in which host station number and mate station number corresponding to each global title are recorded, and own service control station (SCP) number are registered. Based on the station data and the global title in the received signal received from the signal relay station (STP), a routing table search means for searching the routing table and deriving a host station number and a mate station number for the received signal. And signal routing that determines whether the derived host station number and mate station number match the own station number, and selects whether the own station executes call processing or transfers the received signal to another station. An intelligent network comprising means. 2. The service control station (SCP), when the derived host station number matches the own station number, means for performing call processing by the own station, and the derived When the mate station number matches the own station number, the signal is transferred to the corresponding host station, and when the signal cannot be transferred to the host station,
A means for performing call processing by the own station, and when both the derived host station number and mate station number do not match the own station number, the signal is transferred to the corresponding host station and the signal is sent to the host station. The intelligent network according to claim 1, further comprising means for transferring a signal to a corresponding mate station if the transfer is not possible. 3. A means for distributing and storing subscriber data managed as a host station to a plurality of other mate stations, and a global title and a host station number and a mate corresponding to the global title for each host station and each mate station. 3. The intelligent network according to claim 1, further comprising means for providing a routing table common to each station in which station numbers are recorded, and the host station and the mate station are configured by M: N. 4. An exchange that sets a subscriber number in a global title of a signal connection control unit, and a signal relay station (STP) that relays and transmits a signal by specifying a service control station to which the signal is transmitted from the global title. , A service control station (S) with a duplex configuration that functions as a host station and a mate station.
CP is a service control station (SCP) in an intelligent network composed of CP), and subscriber data for performing call processing for each global title as a host station and subscriber data for backing up another station as a mate station. And a subscriber database for registering, a routing table in which the host station number and mate station number corresponding to each global title are recorded, station data for registering the service control station (SCP) number of its own station, Routing table search means for searching the routing table based on a global title in a received signal received from the signal relay station (STP), and deriving a host station number and a mate station number for the received signal; Whether the host station number and mate station number match your own station number Determine the service control station the own station is characterized by comprising a signal routing means for selecting whether to forward or not to execute the call processing, or the received signal to another station. 5. The service control station (SCP), when the derived host station number matches the own station number, means for performing call processing by the own station, and the derived When the mate station number matches the own station number, the signal is transferred to the corresponding host station, and when the signal cannot be transferred to the host station,
A means for performing call processing by the own station, and when both the derived host station number and mate station number do not match the own station number, the signal is transferred to the corresponding host station and the signal is sent to the host station. The service control station according to claim 4, further comprising means for transferring a signal to the corresponding mate station when the service control cannot be performed. 6. A call processing and signal routing method in an intelligent network comprising a switch, a signal relay station (STP), and a dual service control station (SCP) functioning as a host station and a mate station. Then, a signal routing number setting procedure for setting a subscriber number in the global title of the signal connection control unit and transmitting a signal to the signal relay station (STP) is performed, and the signal relay station (STP) receives the signal from the exchange. Based on the upper predetermined number of digits of the global title in the signal, the service control station (S
CP) is specified, a signal routing number translation procedure for transmitting the received signal to the service control station is performed, and the service control station (SCP) performs call processing by using its own station as a host station for each global title. User data and subscriber data that backs up other stations as mate stations, and the procedure of registering the host station number and mate station number corresponding to them for each global title in the routing table. And a procedure for registering the service control station (SCP) number of its own station as station data, and searching the routing table based on the global title in the received signal received from the signal relay station (STP), A routing table search procedure for deriving a host station number and a mate station number for the signal; Signal routing procedure to determine whether the host station number and the mate station number that have been set match the own station number, and select whether the own station executes call processing or transfers the received signal to another station. Call processing and signal routing method in intelligent network characterized by being described. 7. The service control station (SCP), when the derived host station number matches the own station number, a procedure for performing call processing by the own station, and the derived mate. If the station number matches the own station number, the signal is transferred to the corresponding host station, and if the signal cannot be transferred to the host station, the procedure for performing call processing by the own station, If both the derived host station number and the mate station number do not match the own station number, the signal is transferred to the corresponding host station, and if the signal cannot be transferred to the host station, the corresponding mate is sent. The call processing and signal routing method in the intelligent network according to claim 6, further comprising the step of transferring a signal to the station. 8. A procedure for distributing and storing subscriber data managed as a host station to a plurality of other mate stations, and for each host station and each mate station, a global title and a host station number and mate corresponding to the global title. 8. The call processing in the intelligent network according to claim 6 or 7, further comprising: arranging a routing table common to each station in which station numbers are recorded, and the host station and the mate station are configured by M: N. And signal routing methods. 9. An exchange that sets a subscriber number to a global title of a signal connection control unit, and a signal relay station (STP) that relays and transmits a signal by specifying a service control station to which the signal is transmitted from the global title. , A service control station (S) with a duplex configuration that functions as a host station and a mate station.
CP) is a call processing and signal routing method of the service control station in an intelligent network composed of CP, subscriber data for performing call processing for each global title as a host station, and backing up another station as a mate station. Procedure to register the subscriber data to be registered in the subscriber database, the procedure to register the host station number and mate station number corresponding to each global title in the routing table, and the service control station (SCP) of its own station. A procedure for registering a number as station data and a global title in a received signal received from the signal relay station (STP) are used to search the routing table to derive a host station number and a mate station number for the received signal. Routing table search procedure, and the derived host station number And a signal routing procedure for determining whether the mate station number matches the own station number and selecting whether the own station executes call processing or transfers the received signal to another station. Service control station call processing and signal routing method. 10. The service control station (SCP), when the derived host station number matches the own station number, a procedure for performing call processing by the own station, and the derived mate. If the station number matches the own station number, the signal is transferred to the corresponding host station, and if the signal cannot be transferred to the host station, the procedure is to perform call processing by the own station. , If both the derived host station number and the mate station number do not match the own station number, the signal is transferred to the corresponding host station, and if the signal cannot be transferred to the host station, the corresponding 10. The call processing and signal routing method of the service control station according to claim 9, further comprising the step of transferring a signal to the mate station. 11. An exchange, a signal relay station (STP),
A computer in the service control station (SCP) in an intelligent network composed of a redundant service control station (SCP) functioning as a host station and a mate station performs call processing for each global title by using its own station as a host station. Procedures for registering subscriber data and subscriber data that backs up other stations as mate stations in the subscriber database, and for each global title, register the corresponding host station number and mate station number in the routing table. A procedure, a procedure for registering the service control station (SCP) number of the own station as station data, and a search for the routing table based on the global title in the received signal received from the signal relay station (STP), Rule for deriving host station number and mate station number for received signal A routing table search procedure and whether the derived host station number and mate station number match the own station number, and whether the own station executes call processing or transfers the received signal to another station. A computer-readable recording medium having a program recorded thereon for executing a signal routing procedure for selecting. 12. An exchange, a signal relay station (STP),
A computer in the service control station (SCP) in an intelligent network composed of a redundant service control station (SCP) functioning as a host station and a mate station performs call processing for each global title by using its own station as a host station. Procedures for registering subscriber data and subscriber data that backs up other stations as mate stations in the subscriber database, and for each global title, register the corresponding host station number and mate station number in the routing table. A procedure, a procedure for registering the service control station (SCP) number of the own station as station data, and a search for the routing table based on the global title in the received signal received from the signal relay station (STP), Rule for deriving host station number and mate station number for received signal A routing table search procedure and whether the derived host station number and mate station number match the own station number, and whether the own station executes call processing or transfers the received signal to another station. A computer program for causing a signal routing procedure to select and.