JPH0685915A - Network control system - Google Patents

Abstract

PURPOSE:To provide the network control system in which the personal number service is realized without concentrating loads and data bases onto a host service control point of a network. CONSTITUTION:In the network where plural nodes 10A-10D accommodating terminal equipments, the caller node 10A multi-casts number information received from a terminal equipment Ta to plural other nodes (10B, 10C, 10D) and only the node 10B accommodating a terminal equipment Tb-j of number information replies the caller node to set up a call between a caller and a called node as the network control system. Thus, the more the area for multi- casting number information is increased, the less the processing capability of the service control point, the file capacity is reduced and when the area reaches a national area, no SCP is required (complete distribution system).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network control system, and more particularly to a call control system in a network composed of a plurality of node devices.

[0002]

2. Description of the Related Art Conventionally, the following methods are known as call control methods in a network.

The first method is, for example, the first one of the "easy common line signal method" (edited by the Electronic Communication Association) issued by Ohmsha.
On page 83, as shown in FIG. 5.3, the calling side node (calling local node: LS) that received the number information from the calling user
This number information is translated by the directory information to determine the upper relay node, and the upper relay node determines the destination node (destination local node: LS) based on the number information (dial number) from the originating LS. is there. In this case, the individual setting signal including the number information from the calling user is transferred from the calling node to the called node according to the address information, and the called node refers to the resource information and determines the called user terminal corresponding to the number information. Then, the call is set up by activating the called user terminal, returning a call signal to the calling user side, and then sending a response from the called user to the calling user. In addition, the destination node may directly determine the destination node described above.

The second method is, for example, "ISS (Intern
ational Switching Symposium) 1987 ”Proceedings, A12.1.8 FIG. As shown in FIG. 5, it is a call control system using SCP (Service Control Point). In this method, the calling node (calling LS) that receives the number information from the calling user translates this number information using the directory information, and if the dialed number is for a special service such as free dial or dial Q2. The SCP is activated to entrust the processing for the special dial number. The SCP converts the above-mentioned special dial number into a general telephone number and returns it to the calling node, and thereafter, the call setting process is executed by the same procedure as the above-mentioned first method.

In these call control systems, each node has directory information used at the time of call origination, number translation processing for determining a destination (destination node) using the directory information, and resource information used at the time of call arrival. Then, an incoming call processing function for determining an incoming terminal using the resource information is required.

[0006]

With the spread of the telephone network,
In place of (or in addition to) the conventional method of assigning a telephone number for subscriber lines, introduction of a personal number system for assigning a telephone number for personal correspondence is being considered. As a personal number system, for example, (1) a method of assigning a telephone number to each mobile terminal (telephone) so that the same number can be used even if the terminal moves, and (2) each There is a method in which a terminal is fixedly connected to a subscriber line, and each user carries an ID card to move and inserts an ID card into the nearest terminal to assign a personal number to the terminal. .

In the personal number system, it is necessary to perform call control at the network level by the SCP described as the second method in the prior art. However, if the number of the special number services described above increases, (1) the SCP access frequency at the time of call occurrence increases, and
Ultra high-speed processing capability is required. (2) The SCP requires a large-capacity file for accommodating the directory information and resource information of the personal number service target person. (3) It is necessary to frequently change the directory information in the SCP as the terminal moves.

An object of the present invention is to reduce the above-mentioned request for increasing the processing capacity and request for increasing the file capacity to the SCP due to the implementation of the personal number system.
The purpose is to provide a network control method that can introduce a personal number system without the need.

[0009]

In order to achieve the above object, according to the network control method of the present invention, each node device provides a plurality of node devices with number information for designating a called terminal received from a calling user (terminal). Multicast function, a function to determine whether the number information received from the calling user or another node device corresponds to the terminal accommodated in the own node, and if the received number information is accommodated in the own node When the terminal corresponds to the terminal, it has a function of transmitting a response signal to the calling node device or the calling user.

[0010]

In the present invention, if the number information received from the calling user does not correspond to the accommodation terminal of the own node, the calling node does not perform the translation process based on the directory information,
A control signal (message or packet) including the above number information is multicast to other nodes. Each of the other nodes receiving the control signal determines whether the received number information corresponds to the accommodation terminal of the own node by referring to the resource information table, and if it corresponds to the accommodation terminal of the own node. In this case, a call is set up between the calling and receiving users by activating the called user (terminal) and returning a response signal to the calling node.

In a modification of the present invention, the local node and the relay node have a function of multicasting number information in a specific area, and the relay node connected to the originating local node is another relay node or a plurality of other relay nodes. The local node and the relay node having the terminal corresponding to the above number information broadcast the number information to each of the subordinate local nodes, and the local node accommodating the terminal receives it. By responding, the call setup between the originating and terminating users is performed.

[0012]

[Embodiment 1] FIG. 1 is a configuration diagram showing a first embodiment of a network to which the present invention is applied. In this embodiment, the network includes a plurality of user terminals T-1 to T-j (Ta-1 to Ta-j, Tb-1 to Tb).
-J, Tc-1 to Tc-j, T-d1 to Td-j), a plurality of local nodes (LS nodes) 10 (10)
A to 10D) and links 31 (31AB, 31AC, 31AD) connecting these LS nodes.

Each node 10 includes a switch 11, a control unit 12 and a database 13 connected to the switch via a bus 14, and line corresponding units 14 (14-1 to 14k) and 15 connected to the switch. (15-1 ~
15-j). Line interface 15 (15-
1 to 15-j) are connected to respective user terminals T-1 to T-j via subscriber lines 30-1 to 30-j, and the line corresponding units 14 (14-1 to 14k) are connected between nodes. It contains the link 31. In addition, each subscriber line corresponding unit 15 is a control unit 1.
2 is connected, and various tables necessary for packet header conversion and the like are rewritten according to a command from the control unit.

FIG. 2 shows the configuration of the control unit 12. The control unit 12 has a processor 16 and a memory 17, and the memory 17 has a calling number analysis processing program 15 to be described later.
0, the called party number analysis processing program 160, the registration processing program 170, and the registration cancellation processing program 180
And are prepared. Various tables are formed in the area 100 of the memory 17.

FIG. 3 shows the configuration of the resource information table 110 provided in the memory area 100. The resource information table 110 corresponds to the number information (dial number) 111 and is an identifier indicating whether or not the user terminal device having the number is accommodated in the own node (for example, “1 if accommodated in the own node”). If not accommodated, “0” is stored) 112, and if accommodated, information indicating the accommodation position of the terminal (for example, the output port number of the switch) 113 is stored.

FIG. 4 shows a calling side number analysis processing program 15 executed by the control unit 12 when a dial number is received at the time of calling from a user terminal connected to its own node.
0 shows a flowchart of 0. In the calling side number analysis processing program 150, the resource information table 110 of FIG. 3 is searched using the received number information (dial number) as a key (step 151), and the called terminal corresponding to the number information is accommodated in the own node. It is checked if there is any (step 152). If the receiving terminal is accommodated in the own node, the terminal accommodation position 113 is read (step 1
53), the call setting signal is transmitted to the called terminal through the corresponding line interface 15-i (step 154). If the called terminal is not accommodated in the own node, the transmission message of the address signal is edited (step 155), and the address signal is multicast to all the nodes connected to the own node via the line interface 16. (Step 156).

FIG. 5 shows a called party number analysis processing program 1 executed when an address signal is received from another node.
60 shows a flowchart of 60. In the called-side number analysis processing program 160, first, the received number information is used as a key to search the resource information table 110 of FIG. 3, and it is checked whether the called terminal corresponding to the number information is accommodated in the own node (step). 161, 162). if,
If the called terminal is accommodated in its own node, the terminal accommodation position information 113 is read from the resource information table 110, an address completion signal is returned to the transmission source node of the address signal (step 164), and the accommodation position is determined. A call setting signal is transmitted to the called terminal through the line interface specified by the information (step 165). If the result of checking the resource information table 110 indicates that the called terminal is not accommodated in the own node, this routine is terminated without performing any special processing operation.

FIG. 6 shows a signal sequence chart of the call setup procedure in the above network configuration. User node Ta-1 connected to the originating node, eg, 10A
Is the user terminal Tc-j connected to the node 10C.
When the number is dialed to perform the calling operation (200), the call setting signal 201 is transmitted from the user terminal Ta-1 to the calling node 10A. The call setting signal 201 includes ID information of the calling terminal and number information of the dialed-in called terminal.

At the source node 10A, the source user terminal T
a-1 of the subscriber line 35 connected to a-1 30A-1
The line interface 15-1 accommodating the call identifies that the call setting signal 201 is a control signal and transfers it to the controller 12. Upon receiving the call setting signal, the processor 06 of the control unit 12 activates the above-mentioned calling side number analysis processing program 150 to execute the number analysis processing. In this example, since the called terminal corresponding to the number information is not accommodated in the own node 10A, the address signals 203B, 203C, and 203C are sent to all the other nodes 10B, 10C, 10D connected to the own node. 203
Multicast D.

The nodes 10B to 10D which have received these address signals 203 respectively receive the above-mentioned called party number analysis processing program 160 (160B, 160C, 160).
Start D). In this example, nodes 10B and 10D
Does not accommodate the receiving terminal corresponding to the received number information, and consequently ends the receiving operation without doing anything. In the node 10C accommodating the terminating terminal Tc-j, after returning the address response signal 206 to the source node 10A which is the transmission source of the address signal, the destination user terminal Tc
The call setting signal 207 is transmitted to -j.

When the source node 10A receives the address response signal 206 from the destination node 10C, the node 10B other than the destination node 10A which is the source of the address response signal,
Disconnection signals 209B and 209D for 10D, respectively
And disconnect them from the call. On the other hand, the destination user terminal Tc-j that has received the call setup signal 207 enters the ringing state 208 and outputs the ringing signal 210 to the destination node 10.
Send to C. This ringing signal is transferred from the destination node 10C to the source node 10A (211), and the source user terminal Ta is transmitted.
-1 is received (212).

Next, the node operation and the terminal operation when the user terminal in the network configuration of FIG. 1 is replaced with a wireless terminal and each wireless terminal can freely change the position between the nodes will be described. Here, for example, in FIG.
As shown in, the procedure for canceling / registering the number executed when the portable terminal Ta-1 previously accommodated in the node 10A moves to the area under the control of the node 10B will be described.

When leaving the node 170A, the terminal Ta-1 transmits a deregistration request 220 including the number information of the terminal to the node 10A, as shown in FIG. 8A. The node 10A receiving the registration cancellation request,
The registration cancellation processing program 180 is activated. In the resource information table 110 shown in FIG. 3, the deregistration processing program 180 sets “0” in the self-node accommodating identifier 112 corresponding to the number information designated in the deregistration request 220, and then the terminal Ta-1. Completion signal 2 for
21 is returned, and the process of deregistering the terminal from the node is completed.

The terminal Ta-1 released from the node 10A
Performs a registration procedure for accommodation in the node 10B at the destination. In this case, as shown in FIG.
A registration request 230 including number information of the terminal is transmitted from the terminal 10A to the node 10B. Upon receiving the registration request signal, the node 10B receives the registration processing program 170
To execute. In the registration processing program 170, the value “1” of the own node accommodation identifier and the identifier of the wireless subscriber line of the new terminal Ta-1 are associated with the number information in the resource information table 110 shown in FIG. After storing (terminal accommodating position), the completion signal 231 is returned to the terminal Ta-1.

The above-mentioned procedure for deregistering / registering a terminal is performed by, for example, attaching / detaching an ID card storing a personal number to / from a terminal device wiredly connected to each node. It is obvious that the same can be applied to the registration / cancellation of the number in the telephone system which enables the call by.

<Embodiment 2> FIG. 9 shows a TS between the LS nodes 10A to 10C 'respectively accommodating a plurality of user terminals.
The network of the structure interconnected via nodes 20A-20C is shown. In this example, LS nodes 10A and 10
A'to TS node 2 via links 31A and 31A '
0A, the LS nodes 10B and 10B 'are connected to the TS node 20B via the links 31B and 31b', and the LS nodes 10C and 10C 'are linked to the links 31C and 3C.
1C 'is connected to the TS node 20C, and these TS nodes are connected via links 32AB, 32BC, 32CA.

FIG. 10 shows the configuration of the resource information table 120 that each TS node 10 has in the memory area in the above network configuration. Resource information table 1
20 has a configuration in which the terminal accommodation position information 113 is omitted from the resource information table 110 of each LS node described in the first embodiment, and the terminal is under the control of its own node in correspondence with the terminal number information 121. The own node subordinate accommodation identifier 122 indicating whether or not there is stored.

FIG. 11 is a flow chart of a calling party number analysis processing program 150 'executed by each LS node 10 in the above network configuration when a call is made from the accommodated terminal. In this calling side number analysis processing program, first, the number information received from the terminal is used as a key to search the resource information table 110 shown in FIG. 3, and the terminal (incoming terminal) corresponding to the number information is accommodated in its own node. It is checked whether or not it has been done (steps 151, 152).
If the receiving terminal is accommodated in the accommodation own node, the accommodation position information 113 of the receiving terminal is stored in the table 110.
Is read (step 153), and a call setting signal is transmitted to the called terminal (step 154). If the called terminal is not accommodated in the own node, the address signal message is edited (step 155) and the address signal is transmitted to the upper node (TS node) connected to the own node (step). 156 '). The called party number analysis processing program 160 executed by each LS node when receiving an address signal from another node is the same as in the case of the first embodiment.

FIG. 12 is a signal sequence chart showing a call setting procedure in the second embodiment. Now, the user terminal Tc connected to the LS node 10C is called by the user terminal Ta-1 connected to the LS node 10A.
-Assuming that the number i has been dialed, the call setup procedure will be described. First, when a calling operation (200) is performed at the calling user terminal Ta-1, the call setting signal 201 including the calling terminal ID and the dialed number is sent from the calling user terminal Ta-1 to the calling LS node 10A. Will be sent.

The calling LS node 10A which has received the call setting signal 201 transmits the calling party number analysis processing 15 shown in FIG.
Perform 0 '. In this case, since the receiving terminal corresponding to the number information designated by the call setup signal is not accommodated in the own node, the address signal message is edited and the
It transmits to the TS node 20A to which the node 10A is connected (203).

TS node 2 which receives the address signal
0A transmits address signals 204B and 204C to the TS nodes 20B and 20C connected to the own node.
The TS nodes 20B and 20C, which have received the address signal from the other TS nodes, execute the TS number analysis processing program 190.
(190B, 190C) is executed.

In the TS number analysis processing program 190,
As shown in FIG. 13, using the number information designated by the received address signal as a key, the resource information table 120 of FIG. 10 is searched to determine whether or not the called terminal is accommodated under the control of the own node 191. , 192). If the called terminal is under the control of its own node, the address signal message is edited (step 193) and sent to the LS node connected to the own node (step 1).
However, if the receiving terminal is not under the control of its own node, this routine ends without doing anything.

Returning to FIG. 12, in the TS node 20B that has received the address signal 204B, the TS number analysis processing 19
As a result of 0B, it is determined that the called terminal is not under the control of its own node, and no special operation is performed (NOP processing). On the other hand, T
As a result of the TS number analysis processing 190C, the S node 20C detects that the called terminal is under the control of the own node, and the LS nodes 10C, 10
An address signal (205C, 205C) is multicast to C '.

The LS nodes 10C and 10C 'which have received the address signals 205C and 205C, respectively, perform the called party number analysis processing 160 (160C and 160) described in FIG.
C ') is executed. In this example, the LS node 10C ′ that has determined that it does not accommodate the terminating terminal does nothing, and the LS node 10C that accommodates the terminating terminal Tc-i does not notify the destination TS node 20 that is the source of the number information. Address response signal 206 is returned and a call setting signal 207 is transmitted to the destination user terminal Tc-i.

Destination TS receiving the address response signal 206
The node 20C is a subordinate LS node other than the destination LS node 10C that is the transmission source of the address response signal 206 (in this case, only the LS node 10C ′),
The disconnect signal 209 is transmitted to disconnect from the call. On the other hand, the called user terminal Tc-i that has received the call setting signal 207 enters the calling state 208 and receives the ringing signal 150.
Send to S node 10C. The ringing signal is transmitted from the destination LS node 10C to the destination TS node 20C and the destination TS node 2
0C to the originating TS node 20A, and sequentially from the originating TS node 20A to the originating LS node 10A (211 and 2).
11AC, 211A), and the incoming user terminal Ta-1 receives a call from the outgoing LS node 10A (212).

Next, each LS node 10 in the network shown in FIG. 9 accommodates a mobile terminal (wireless terminal). For example, as shown in FIG. 14, one terminal Ta-1 is an LS.
The number deregistration / registration operation performed when moving from the node 10A to the wireless subscriber line of another LS node 10B will be described with reference to FIG.

When the terminal Ta-1 leaves the node 10A, as shown in FIG. 15A, the terminal Ta-1 sends a registration cancellation request 220 including the number information of the terminal to the node 10A. To do. Upon receiving the registration cancellation request signal, the node 10A receives the registration cancellation processing program 180.
To execute. By executing this program 180, in the resource information table 110 shown in FIG. 3, “0” is set in the own node accommodation identifier 112 corresponding to the above-mentioned number information for which the registration cancellation request has been made, and when that ends, the completion signal 221 Is returned to the terminal Ta-1.

Upon receiving the completion signal 221, the terminal Ta-1 transmits a registration cancellation request 222 including the number information of the terminal to the TS node 20A. TS node 20A
Upon receiving the registration cancellation request signal 222, starts the registration cancellation processing program 180A. As a result of the execution of the deregistration processing program 180A, in the resource information table 120 shown in FIG. 10, "0" is set to the own node subordinate accommodation identifier corresponding to the above-mentioned number information for which the deregistration is requested, and the terminal Ta- Completion signal 22 for 1
3 is returned.

The terminal Ta-1 moves to the LS node 10B.
15B, the registration request 230 including the number information of the terminal is transmitted from the terminal Ta-1 to the LS node 10B as shown in FIG. Upon receiving the registration request 230, the LS node 10B executes the registration processing program 170, and sets the own node accommodation identifier to "1" on the resource information table 110 in correspondence with the registration request number information and the subscriber line correspondence. After storing the terminal accommodating position of, the completion signal 231 is returned to the terminal Ta-1.

The terminal Ta- which received the completion signal 231
Next, 1 transmits a registration request 232 including the number information of the terminal to the TS node 20B. TS node 20B
Upon receiving the registration request signal 232, starts the registration processing program 170B. Registration processing program 17
As a result of execution of 0B, the self-node subordinate accommodation identifier “1” is stored in the resource information table 120 in correspondence with the above number information, and when that ends, the completion signal 233 is output to the terminal Ta−.
Returned to 1.

Note that the above-described terminal deregistration / registration procedure is performed by wire-connecting terminals (Ta-1 to Tc ') to each LS node 10.
The same can be applied to the case where the personal number is registered / released by connecting (j)) and the user attaching / detaching the ID card storing the personal number to / from any terminal.

<Third Embodiment> FIG. 16 shows that the user terminal is an LS.
The nodes 10 (10A, 10A ', 10B, 10B') are accommodated, and TS nodes 20A, 2 are provided between these LS nodes.
0B and a service control point (SCP) 21 is provided between TS nodes.

FIG. 17 shows a signal sequence chart at the time of call setting in the network configuration shown in FIG.

Now, the LS node (source LS node) 10A
(200), it is assumed that the user terminal Ta-1 connected to the LS node makes a call and the number of the user terminal Tb-j connected to the LS node 10 is dialed (200).
The call setup signal 201 is transmitted from 1 to the originating LS node 10A. This call setting signal includes the calling terminal ID and dialed number information.

Upon receiving the call setting signal 201, the LS node 10A executes the originating side number analysis processing program 150. In this example, since the called terminal having the received number information is not accommodated in the own node, the calling LS node 10
A transmits the inquiry signal 202S to the SCP 21. SC
In response to the inquiry signal, P21 executes the SCP number analysis processing program 300 shown in FIG.

The SCP number analysis processing program 300 refers to the table storing the correspondence between the number information and the receiving area number to obtain the receiving area number corresponding to the inquired number information (step 301). The response signal 202A including the incoming area number is returned to the originating LS node 10A (step 302).

The originating LS node 10A transmits an address signal 203 addressed to the TS node 20B corresponding to the above-mentioned destination area number notified from the SCP. The address signal is transmitted to the TS node 20A, which is the upper station of the LS node 10A.
Via the destination TS node 20B (20
4). The destination TS node 20B edits the received address signal into address signals 205B and 205B ′, and the LS nodes 10B and 10B ′ connected to the TS node 20B.
Multicast to.

The LS nodes 10B and 10B 'that have received these address signals execute the called party number analysis processing program 160 (160B and 160B'), respectively, and refer to the resource information table 110 to specify the address signals. It is checked whether the terminal corresponding to the obtained number information is accommodated in the own node. In this example, since the LS node 10B does not have a terminal corresponding to the designated number information, it does not respond to the address signal.
On the other hand, since the LS node 10B accommodates the terminal corresponding to the designated number information, the LS node 10B returns the address response signal 206 to the destination TS node 20B, which is the transmission source of the address signal, and is applicable. The call setting signal 207 is transmitted to the destination user terminal Tb-j in the accommodation position.

Destination TS that received the address response signal 206
The node 20B is one of a plurality of LS nodes under its control.
The disconnection signal 209 is transmitted to the nodes other than the source node 10B of the address response signal (in this case, only the node 10B ') to disconnect from the call.

Upon receiving the call setup signal 207, the called user terminal Tb-j enters the ringing state 208 and sends a ringing signal 210 to the called LS node 10B. Destination LS node 10B to destination TS node 20B, destination TS node 20
The calling signal is transferred from B to the originating TS node 20A and from the originating TS node 20A to the originating LS node 10A (21
1, 211AB, 211A) and the calling user terminal Ta-1 receives the ringing signal 212 to complete the call setting operation.

Next, in the above-mentioned network configuration, as shown in FIG. 19, each LS node 10 accommodates a mobile terminal (wireless terminal), and one LS node 10 such as node 1 is used.
A procedure of number registration when the terminal Ta-1 accommodated in the wireless subscriber line of 0A moves to the position of another node 10B will be described.

FIG. 20A shows the procedure when the terminal Ta-1 leaves the node 10A. The terminal Ta-1 transmits a registration cancellation request 220 including the number information of the terminal to the node 10A. After receiving the registration deletion request, the node 10A executes the registration cancellation processing program 180, and after setting the own node accommodation identifier corresponding to the number information specified by the registration deletion request on the resource information table 110 to "0" , The completion signal 221 is returned to the terminal Ta-1.

Terminal Ta-1 which received the completion signal 221
Then, the SCP 21 transmits a registration cancellation request 222 including the number information of the terminal to the SCP 21. Registration cancellation signal 2
22 reaches the SCP 21 via the LS node 10A and the TS node 20A. The SCP 21 clears the destination area number corresponding to the number designated by the registration cancellation request 222, and then returns the completion signal 223 to the terminal Ta-1.

FIG. 20B shows. The procedure when the terminal Ta-1 registers a number in another node 10B will be described. Terminal Ta
-1 transmits the registration request 230 including the number information of the terminal to the destination node 10B. Registration request 2
The node 10B receiving 30 receives the registration processing program 1
After executing 70 and storing the own node accommodating identifier “1” and the accommodated subscriber line-corresponding terminal accommodating position in the resource information table 110 in correspondence with the number information specified in the registration request, The completion signal 231 is returned to the terminal Ta-1.

The terminal Ta- which received the completion signal 231
Next, the 1 transmits a registration request 232 including the number information of the terminal to the SCP 21. The registration request signal 23
2 reaches the SCP 21 via the LS node 10B and the TS node 20B. Upon receiving the registration request signal 232, the SCP 21 stores the destination area number in association with the number information designated by the registration request, and then returns the completion signal 233 to the terminal Ta-1.

The procedure described above can be similarly applied to a system in which the ID card in which the personal number is stored is attached to and detached from the wired terminal so that the telephone addressed to the personal number can be received.

Although the embodiments of the present invention have been described above with respect to three types of network configurations, the present invention can be realized in network configurations other than the above-described embodiments, for example, network configurations in which inter-node links are formed by satellite lines.

[0058]

As the personal number service spreads,
The conventional system configuration requires a service control point (SCP) having a high processing capacity and a large capacity file. For example, if the number of subscribers for the personal number service is 80 million, the SC used in the entire system
Assuming that the number of P is “10”, the processing capacity per SCP is 100 k transactions / sec, and the file capacity per SCP is 6.8 GB (directory information: 6 GB).
Byte, resource information: 800 Mbytes). By broadcasting the number information to all the nodes by the method of the present invention, the above SCP is unnecessary and the processing can be distributed to each node nationwide. In this case, each node may be provided with a file storing resource information, and it is not necessary to store directory information (conversion of accommodating node from number information). Further, resource information may be prepared for each of the number of subscriber terminals accommodated in each node.

In the implementation of the present invention, the communication amount of the number information is, for example, 25 when the number of terminals is 80 million.
It is about Mbps, which is an amount of information that does not pose a problem compared with the total throughput of 1.5 to 150 G per BISDN node. Further, as a modified example of the present invention, when the number information is multicast only to the specific area, the larger the range of the specific area is (when the specific area becomes a nationwide area, the SCP becomes unnecessary), It is possible to reduce the above-mentioned processing capacity and file capacity.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of a network configuration to which the present invention is applied.

FIG. 2 is a diagram showing a configuration of a control unit.

FIG. 3 is a configuration diagram of a resource information table for an LS node.

FIG. 4 is a flowchart of a calling party number processing program 150.

FIG. 5 is a flowchart of a calling party number processing program 160.

FIG. 6 is a diagram showing a procedure for call setting in the network configuration of the first embodiment.

FIG. 7 is a diagram showing a moving form of a terminal in the network configuration of the first embodiment.

FIG. 8 is a diagram showing a terminal registration cancellation processing procedure and a registration processing procedure.

FIG. 9 is a diagram showing a second embodiment of the network configuration to which the present invention is applied.

FIG. 10 is a configuration diagram of a resource information table for a TS node.

FIG. 11 is a flowchart of a calling party number processing program 150 ′ in the second embodiment.

FIG. 12 is a diagram showing a procedure for call setting in the network configuration of the second embodiment.

FIG. 13 is a flowchart of a TS number processing program 190.

FIG. 14 is a diagram showing a moving form of a terminal in the network configuration of the second embodiment.

FIG. 15 is a diagram showing a registration cancellation processing procedure and a registration processing procedure of a terminal in the second embodiment.

FIG. 16 is a diagram showing a third embodiment of the network configuration to which the present invention is applied.

FIG. 17 is a diagram showing a procedure for call setting in the network configuration of the second embodiment.

FIG. 18 is a flowchart of an SCP number processing program 300.

FIG. 19 is a diagram showing a moving form of a terminal in the network configuration of the third embodiment.

FIG. 20 is a diagram showing a registration cancellation processing procedure and a registration processing procedure of the terminal in the second embodiment.

[Explanation of symbols]

10 (10A to 10D) ... Local node (LS node), 11 switch, 12 ... Control unit, 13 ... File,
Ta-1 to Td-j ... User terminal, 30 ... Subscriber line, 1
4, 15 ... Interface circuit, 16 ... Processor, 1
7 ... Memory, 20 (20A to 20C) ... Relay node (T
S node), 21 ... SCP node, 31, 32 ... Inter-node link, 110 ... LS node resource information table, 120 ... TS node resource information table, 20
0 ... Call + dial operation, 150 ... Calling party number analysis processing,
160 ... Destination number analysis processing, 170 ... Registration processing, 180
… Registration cancellation processing, 190… TS number analysis processing, 300…
SCP number analysis processing, 208 ... Ringing.

Claims (11)

[Claims] 1. In a network composed of a plurality of node devices accommodating terminals, a plurality of calling node devices, which have received a call setting signal including number information for designating a receiving terminal from the accommodating terminal, are connected to the own device. Of the number information to the other node device, and the destination node device accommodating the destination terminal transmits a signal for call setup to the destination terminal and sends a response signal to the source node device. A network control method characterized in that a call is set up between the source node device and the destination node device by returning the call. 2. Each of the node devices includes a resource information storage unit that stores identification information indicating the accommodation state of the terminal in its own device in correspondence with the terminal number information, and any one of the terminals moves between nodes. In the first step, the source node device and the destination node device respectively perform the procedure for updating the resource information of the mobile terminal.
The network control method described in the section. 3. Each of the node devices includes a resource information storage unit that stores identification information indicating the accommodation state of the terminal in its own device in association with the number information of the terminal, and each of the node devices stores the number information. The terminal accommodates a terminal whose association with the number information can be changed by attaching / detaching the storage medium, and when the correspondence change operation of the number information is performed by attaching / detaching the storage medium in any terminal, the terminal is 2. The network control method according to claim 1, wherein the node device to be accommodated performs a resource information update procedure. 4. In a network composed of a plurality of node devices accommodating terminals, a calling node device which has received a call setting signal including number information for designating a receiving terminal from the accommodating terminal stores the number information in a specific area. By transferring to a plurality of node devices, the destination node device accommodating the receiving terminal, by transmitting a signal for call setting to the receiving terminal and by returning a response signal to the source node device,
A network control method characterized in that a call is set up between the source node device and the destination node device. 5. In a network in which a plurality of local node devices accommodating terminals are interconnected via a relay node device, an originating local that receives a call setup signal including number information for designating a receiving terminal from the accommodating terminal. The node device transfers the number information to the originating relay node device connected to itself, and the originating relay node device transfers the number information to a plurality of other relay node devices to accommodate the destination terminal that accommodates the called terminal. The destination relay node device having the local node device as a subordinate transmits the received number information to a plurality of subordinate local node devices, and the destination local node device accommodating the called terminal sets the call setting for the called terminal. And a response signal is sent back to the destination relay node device, and the originator node is transmitted via the destination relay node device and the source relay node device. By returning a response signal to Renaudot device, a network control system, characterized in that as a call is set between the onset local node device and the deposition local node device. 6. Each of the node devices comprises resource information storage means for storing identification information indicating the accommodation state of the terminal in its own device in association with the terminal number information, and any one of the terminals moves between nodes. The source local node device, the source relay node device under the local node device,
6. The network according to claim 5, wherein the destination local node device and the destination relay node device subordinate to the local node device respectively perform the resource information updating procedure of the mobile terminal. control method. 7. Each of the node devices includes a resource information storage unit that stores identification information indicating the accommodation state of the terminal in its own device in correspondence with the number information of the terminal, and the local node device stores the number information. The terminal accommodates a terminal whose association with the number information can be changed by attaching / detaching the storage medium, and when the association change operation of the number information is performed by attaching / detaching the storage medium in any terminal, the terminal is 6. The network control method according to claim 5, wherein a procedure for updating resource information is performed in a local node device to be accommodated and a relay node device under the control of the local node device. 8. A network comprising a plurality of node devices and a service control point device,
The calling node device, which receives the call setting signal including the number information designating the receiving terminal from the terminal, transmits the received number information to the service control point device, and the service control point device receives the call area and corresponds to the number information. Is sent to the source node device, the number information is notified from the source node device to a plurality of node devices in the destination area, and the node device accommodating the destination terminal responds to the number information, thereby the source node device A network control method characterized in that a call is set up between a destination node device and a destination node device. 9. Each of the node devices and the service control point device comprises a resource information storage means for storing identification information indicating the accommodation state of the terminal in correspondence with the terminal number information, and any one of the terminals stores information between the nodes. When moving, the source node device, service control point device,
9. The network control method according to claim 8, wherein the destination node device is adapted to perform the procedure for updating the resource information of the mobile terminal. 10. Each of the node devices and the service control point device includes a resource information storage unit that stores identification information indicating a terminal accommodation state corresponding to the terminal number information, and the node device stores the number information. The terminal accommodates a terminal whose association with the number information can be changed by attaching / detaching the storage medium, and when the association change operation of the number information is performed by attaching / detaching the storage medium in any terminal, the terminal is 9. The network control method according to claim 8, wherein the node device and the service control point device to be accommodated perform a resource information update procedure. 11. A network control system according to claim 1, 4, 5, or 7, wherein the number information is multicast via a satellite line.