KR100333737B1 - Advanced Intelligent Network Service System Using General Switch Management Protocol, And Providing Service Method Of Which - Google Patents

Abstract

The present invention relates to a next generation intelligent network system using a general-purpose switch control protocol, a service providing method thereof, and a computer-readable recording medium storing a program for realizing the method. An object of the present invention is to provide an intelligent network system using a general-purpose switch control protocol, a service providing method thereof, and a computer-readable recording medium recording a program for realizing the method. The present invention provides an intelligent network system using a general switch management protocol (GSMP), comprising: service control means for operating as a GSMP master to transfer a connection management message and a port management message; Service switching means for operating as a GSMP slave to process signaling to deliver a configuration information message and a statistical message to the service control means under the control of the service control means; And intelligent information providing means for operating as a GSMP slave to process signaling to deliver a configuration information message and a statistical message to the service control means under the control of the service control means. The present invention is used in the next generation intelligent network system.

Description

Advanced Intelligent Network Service System Using General Switch Management Protocol, And Providing Service Method Of Which}

The present invention provides a next-generation intelligent network system using a general-purpose switch control protocol, which is a core protocol of an open network component, and a method of providing the service, and a computer-readable recording program for realizing the method. In the present invention, an intelligent network is a telephone network design advocated by Bellcore, in which service logic for a call is provided so that a service can be added or changed without newly designing switch equipment. Means a network located separately from

In the prior art, the intelligent network service is called the Integrated Service Digital Network (hereinafter referred to as ISUP), which is a standard protocol proposed in the standard recommendation of the International Telecommunication Union (ITU). Intelligent network service using the Intelligent Network Application Protocol (hereinafter referred to as 'INAP').

1 is a system configuration diagram generally showing an embodiment of a connection between next-generation intelligent network components. Its configuration is as follows.

The next generation intelligent network is a service control system (SCP) for creating and controlling services (hereinafter referred to as 'SCP') 101, and a service switching system serving as an exchange role (hereinafter referred to as SSP). 102, and Intelligent Peripheral (hereinafter referred to as IP) 103, which is responsible for providing resources. These components handle the traffic while delivering INAP and ISUP messages through a signaling transfer point (hereinafter referred to as 'STP') 104, which is typically a mesh. ) And each component is connected to the signal repeater via two or more links for reliability. The IP 103 connects the SSP 102 and the bearer channel 106 to the E1 trunk, and communicates with the SCP 101 as an INAP protocol via a signaling link 105 connected to the STP 104. 102 provides call processing and service while exchanging signaling messages using ISUP protocol.

FIG. 2 is an exemplary flowchart illustrating a process of providing an Automatic Collect Call (hereinafter referred to as an "ACC") among intelligent network services in a next generation intelligent network according to FIG. Its operation flow is as follows.

When an intelligent network service request (ACC service identification number) is received from the calling subscriber (201), SSP1 sends an initial detection point (hereinafter referred to as 'IDP') to the SCP (202) to request the intelligent network service request. Inform them that intelligent IP is required for receiving and providing additional resources. The SCP instructs SSP1 a bearer channel connection for providing a specialized resource between IPs (203). That is, signaling for call setup is started. SSP1 transmits an initial address message (IAM), which is a protocol message of the ISUP user interface, to the relay switch SSP2 (204) for signaling, and SSP2 relays this message to SSP3 (205). Finally, it transmits to the IP which is the signaling end point (hereinafter referred to as 'SEP') (206). That is, relaying of inter-switch signaling messages of each switch (SSP) is performed with a routing table. As a response to the IAM, the IP transmits an address complete message (hereinafter referred to as 'ACM') to SSP1 to which the calling subscriber is connected (207 to 210). As a result, a bearer channel for providing a specialized resource between the calling subscriber and the IP is connected (211). Since the IP receives the IAM and receives commands related to user (outgoing) interactions from the SCP, the Assist Request Instruction is an Intelligent Network Application Part (hereinafter referred to as 'INAP') message. ARI) message is transmitted to the SCP (212). SCP uses special resources possessed by IP to inform calling subscribers (Play Announcement; referred to as 'PA'), Voice and Receive Message (hereinafter referred to as 'PRM'), and digit collection (Prompt and Collect User Information (hereinafter referred to as 'PCUI') and a cancel command is sent to the SCP (213). The IP sends a response message (hereinafter referred to as 'ANM') to the SSP before providing the resource for the operation, and the SSP is sent to the calling subscriber (214 to 217). The IP receives and analyzes the intelligent network operations (PA, PRM, PCUI, cancellation order, etc.) instructed by SCP, and then operates the special resource to provide resources to the subscriber. As a result, the name of the originating subscriber recorded In operation 218, the collected telephone number of the called subscriber is transmitted to the SCP. SSP1 performs a call origination with the information collected from the operation (phone number of the called subscriber), and the bearer channel with the called subscriber is connected through the transmission and reception of ISUP messages (IAM, ACM, ANM). The IP receives the IAM and transmits the ACM as a response, so that the bearer channel between the called subscribers is connected. Since the IP receives another IAM for inter-subscriber signaling and receives commands related to user (incoming) interactions from the SCP, it sends an INAP message, an ARI message, to the SCP. IP sends the ANM back to SSP1 before providing resources for the operation and SSP1 back to the called subscriber. That is, the call setup procedure of the called party is the same as the call setup procedure (202 to 217) with the calling party (219 to 234). SCP instructs to provide announcements (PA) and digit collection (PCUI) with incoming subscribers using special resources possessed by IP, and IP performs operations (PA, PCUI, etc.) directed by SCP. In operation 235, the receiver collects a digit (eg, digit 1) that means to receive an ACC call through the PA and PCUI operations to the called subscriber. The SSP1 establishes a voice communication channel (236) by connecting an outgoing and incoming call using a call merging function (236).

As described above, the intelligent network will have an increased necessity for adaptation to various demands of users and efficient network operation, and should have a consistent network structure as the network transport layer is diversified and multi-vendors for various equipment providers. In addition, the Telecommunication Information Network Architecture (hereinafter referred to as 'TINA') defines a service and management structure under a structure called a Distributed Processing Environment (hereinafter referred to as 'DPE') to more efficiently define a service. Enable development and provision In the Object Management Group (OMG), the Common Object Request Broker Architecture (hereinafter referred to as CORBA) allows applications to integrate with each other in heterogeneous distributed environments. A standard was established. If the service objects defined by TINA can be distributed to CORBA-based TINA service nodes, this is the final evolutionary step, and the INAP interface in the intelligent network system disappears. As a result, all CORBA objects in the CORBA environment can be called directly.

Looking at the network evolution scheme, the first scheme is to change the system's switch equipment to an ATM switch, and the INAP over ATM technology may be applied while the No.7 protocol stack exists. As an attempt of a multiservice-open network-based control technology, a general switch management protocol (GSMP) for switch control and a general switch control protocol (QoS-extended version) for improving quality of service of GSMP (hereinafter referred to as 'qGSMP') may be applied. The next approach is to apply CORBA to some components of the intelligent network, which will make it easier to apply CORBA to service control systems than other components. In terms of time, the last one would need to be TINA service node. The functional elements of each SSP, SCP, and IP of the existing intelligent network are exchanged with each other through INAP operation, and the INAP processing unit of each element is defined using a Remote Operations Service object (hereinafter referred to as 'ROS'). . The intelligent network standard standardized ROS object and INAP operation for interface between each element. The ROS object expressed in this ASN.1 format can be realized by mapping to a CORBA object expressed in the OMG Interface Definition Language (hereinafter referred to as 'IDL').

The ideal solution would be to implement CORBA-based AIN for all components of the intelligent network, and each component of the intelligent network would be a service node of TINA based on CORBA. However, before all networks are implemented in the TINA structure, it would be desirable to coexist with the existing intelligent network system and the system implementing the functions provided by the TINA structure. The first of the two evolutionary methods described above is considered to be the most appropriate considering the timing problem and ease of application of technology in terms of application of the present invention, and based on this, the development of an open communication system is required. .

SUMMARY OF THE INVENTION The present invention has been made to meet the above requirements, and an intelligent network system using a general-purpose switch control protocol that can replace a technology for switching a bearer channel between an IP and an SSP, and a method for providing the service and realizing the method Its purpose is to provide a computer readable recording medium having recorded thereon a program.

1 is a system configuration diagram generally showing a connection embodiment between next-generation intelligent network components.

2 is an exemplary flowchart illustrating a process of providing an automatic collect call service among intelligent network services in a next generation intelligent network according to FIG. 1.

Figure 3 is a block diagram of a next generation intelligent network system with a universal switch control protocol according to the present invention.

4 is a format diagram showing a format of a message of a general-purpose switch control protocol according to the present invention.

5 is a flowchart illustrating a process of providing an automatic collect call service using a universal switch control protocol according to the present invention.

Explanation of symbols on the main parts of the drawings

101: service control system 102: service switching system

103: intelligent information providing system 104, 304: signal repeater

105: NO.7 signaling link

301: Universal Switch Control Protocol Master

302, 306, 308: NO.7 Protocol Stack 303: Universal Switch Control Protocol

305: universal switch control protocol slave

According to an aspect of the present invention, there is provided an intelligent network system using a general switch management protocol (GSMP), comprising: service control means for operating as a GSMP master to transfer a connection management message and a port management message; Service switching means for operating as a GSMP slave to process signaling to deliver a configuration information message and a statistical message to the service control means under the control of the service control means; And intelligent information providing means for operating a GSMP slave to process signaling and delivering a configuration information message and a statistical message to the service control means under the control of the service control means.

On the other hand, the present invention is a service providing method in an intelligent network system using a universal switch control protocol, the intelligent network information providing means of the intelligent network originating subscriber and the intelligent network system using the GSMP according to the intelligent network service request of the intelligent network originating subscriber. A first step of configuring a bearer channel of the liver; A second step of connecting a bearer channel between the service switching means of the intelligent network system and the called subscriber to perform a call origination to the telephone number of the called subscriber entered by the intelligent network calling subscriber through the bearer channel configured in the first step; ; A third step of transmitting, to the called subscriber, an announcement broadcast asking whether the automatic collect call telephone has arrived and whether or not it has been received; And a fourth step of releasing a bearer channel connection between the intelligent information providing means and connecting a channel through a call between the calling subscriber and the called subscriber according to the reception decision of the called subscriber.

On the other hand, the present invention, in the intelligent network service system using a general-purpose switch control protocol having a processor, between the intelligent network originating subscriber and the intelligent network information providing means of the intelligent network system using the GSMP according to the intelligent network service request of the intelligent network originating subscriber. A first function of configuring a bearer channel; A second connection between the service switching means of the intelligent network system and the bearer channel between the called subscribers for performing call origination to the telephone number of the called subscriber entered by the intelligent network calling subscriber through the bearer channel configured by the first function; function; A third function of transmitting, to the called subscriber, an announcement that an automatic collect call telephone has arrived and whether or not to receive it; And a program for releasing a bearer channel connection between the intelligent information providing means and realizing a fourth function of connecting a channel by a call between the calling subscriber and the called subscriber according to the reception decision of the called subscriber. Provide a record carrier.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 shows a block diagram of a next generation intelligent network system with a universal switch control protocol in accordance with the present invention. Its configuration is as follows.

The service control system has a GSMP master that is responsible for the GSMP master system 301 functions. In addition, the service switching system and the intelligent information providing system transmit and receive the GSMP masters to and from the daemon of the GSMP slave, and perform the corresponding processing. In this case, the GSMP packets transmitted and received are encapsulated in an Ethernet or Asynchronous Transfer Mode (hereinafter, referred to as an 'ATM') method and then transmitted and received between the GSMP master 301 and the GSMP slaves 305 and 307.

4 is a format diagram showing a format of a message of a general-purpose switch control protocol according to the present invention. With reference to this, the format of the general-purpose switch control protocol is as follows.

An 8-bit version field 401 indicates a version of the GSMP. The 8-bit message type field 402 represents a GSMP message type, and has six formats: connection management messages, port management messages, status and statistics messages, configuration messages, quality of service messages, and event messages. This exists. And, the message type field 402 is '16' for the virtual channel connection add branch message and '26' for the virtual path connection add branch message. Has a value. An 8-bit Result Field 403 is used when the message requires a response. An 8-bit code field 404 is a field used when additional information about a response is needed. A 32-bit transaction identifier field 405 is used for association with the corresponding response message for the request message. If it is an event message, it is set to 0. The fields thus far are header fields of the GSMP and apply to all messages in common.

The 32-bit Port Session Number Field 406 is a number assigned at the switch for switch port management. A 32-bit Input Port Field 407 is used to identify the input port of the switch. There is a flag 408 such as a 4-bit multicast, a quality of service (QoS) profile, etc., and an input virtual path identifier field (hereinafter referred to as an 'input VPI') of 4 bits (409). Is the virtual path identifier for the input port. An input virtual channel identifier (hereinafter, referred to as 'input VCI') 410 having a size of 16 bits is a virtual channel identifier for an input port. The 32-bit output port field 411 indicates a switch output port. The 12-bit output VPI 412 is the virtual path identifier for the output port and the 16-bit output VCI 413 is the virtual channel identifier for the output port. The 16-bit number of branch field 414 is a field indicating the number of output branches. In the case of point-to-point connection, one branch exists. The 16-bit class of service field 415 includes information related to the quality of service if the quality of service profile field is previously set.

5 is a flowchart illustrating a process of providing an automatic collect call service using a universal switch control protocol according to the present invention. Its operation flow is as follows. The intelligent network service is started by inputting the intelligent network service identification number to request the intelligent network service by the intelligent subscriber connected to SSP1 (501). SCP extracts the IDP by analyzing the identification number entered from the calling subscriber and selects the corresponding IP to provide the subscriber with Specialized Resource. The SCP recognizes that it is an ACC service through the IDP extracted from the identification number (502), and can select an IP for the voice guidance / recording (PA / PRM) function. It can also detect that the IP is connected to SSP3. When SCP instructs connection establishment between SSP1-SSP2-SSP3 using GSMP, SCP transmits an Add Branch Message, an GSMP message, to each SSP (503-505). Since the Add Branch Message contains input port (VPI / VCI) and output port (output port / VPI / VCI) information fields, when each SSP receives the add branch message, the relay channel A bearer channel between the originating subscriber and the IP is configured through the connection of the network (506). SCP runs the ACC service logic. When the SCP receives an auxiliary request command from the IP, it transmits intelligent network operation messages (PA, PRM, PCUI, command cancellation) to the IP (507,508) .The IP analyzes the operation received from the SCP, and uses the GSMP to The special resource is provided to the calling subscriber connected to SSP1 through the established bearer channel (509). The calling subscriber enters the name of the calling subscriber and the telephone number of the called subscriber using the voice guidance and voice recording function provided by IP. SSP1 performs call origination to the collected subscriber's telephone number (510), which also bears the bearer channel connection from the SCP to GSM subscriber using GSMP (511 ~ 514). When the called party picks up the receiver, the IP forwards the ARI to the SCP. SCP receives ARI and sends intelligent network operation messages (PA, PRM, PCUI, command cancellation) to IP. The IP receives intelligent network operation messages (PA, PRM, PCUI, command cancellation) and transmits an announcement broadcast (PA) to the called subscriber asking whether the ACC call has arrived or not. If the ACC call is allowed to be received (allowed digit input), the bearer channel connection between the called party and the IP is released, and SSP1 is connected to the voice communication channel by the call between the calling party and the called party. The method of the present invention as described above may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

As described above, the present invention can replace the existing ISUP protocol by using a general switch control protocol as a call processing protocol in a next-generation intelligent network, and thus it is possible to operate regardless of the lower switch structure provided by the multi-vendor. However, the method proposed in the present invention can cope quickly with the evolution of the network in the future, and has an effect of contributing to the network construction strategy to accommodate the open protocol, which is still in its infancy.

Claims (6)

In an intelligent network system using a general switch management protocol (GSMP), Service control means for operating as a GSMP master to transfer connection management messages and port management messages; Service switching means for operating as a GSMP slave to process signaling to deliver a configuration information message and a statistical message to the service control means under the control of the service control means; And Intelligent information providing means for operating a GSMP slave to process signaling and delivering a configuration information message and a statistical message to the service control means under the control of the service control means. Intelligent network system using a general switch management protocol (GSMP) comprising a. The method of claim 1, And the GSMP master and the GSMP slave transmit and receive in the form of packets encapsulated in an Asynchronous Transfer Mode (ATM) scheme. The method of claim 1, The GSMP master and the GSMP slave is an intelligent network system using a general-purpose switch control protocol, characterized in that the transmission and reception in the form of packets encapsulated by the Ethernet (Ethernet) method. The method of claim 1, And said service control means, said service switching means and said intelligent information providing means have a NO.7 protocol stack for transmitting and receiving intelligent network application protocol operations for providing intelligent network services. A service providing method in an intelligent network system using a universal switch control protocol, A first step of configuring a bearer channel between the intelligent network originating subscriber and the intelligent network information providing means of the intelligent network system using the GSMP according to the intelligent network service request of the intelligent network originating subscriber; A second step of connecting a bearer channel between the service switching means of the intelligent network system and the called subscriber to perform a call origination to the telephone number of the called subscriber entered by the intelligent network calling subscriber through the bearer channel configured in the first step; ; A third step of transmitting, to the called subscriber, an announcement broadcast asking whether the automatic collect call telephone has arrived and whether or not it has been received; And A fourth step of releasing a bearer channel connection between the intelligent information providing means and connecting a channel through a call between the calling subscriber and the called subscriber according to the reception decision of the called subscriber; Service providing method in an intelligent network system using a general-purpose switch control protocol comprising a. In an intelligent network service system using a general-purpose switch control protocol having a processor, A first function of configuring a bearer channel between the intelligent network originating subscriber and the intelligent network information providing means of the intelligent network system using the GSMP according to the intelligent network service request of the intelligent network originating subscriber; A second connection between the service switching means of the intelligent network system and the bearer channel between the called subscribers for performing call origination to the telephone number of the called subscriber entered by the intelligent network calling subscriber through the bearer channel configured by the first function; function; A third function of transmitting, to the called subscriber, an announcement that an automatic collect call telephone has arrived and whether or not to receive it; And A fourth function of releasing a bearer channel connection between the intelligent information providing means and connecting a channel through a call between the calling subscriber and the called subscriber according to the reception decision of the called subscriber; A computer-readable recording medium having recorded thereon a program for realizing this.