KR20010055480A - Advanced Intelligent Network Service System Using General Switch Management Protocol, And Providing Service Method Of Which - Google Patents

Abstract

PURPOSE: An intelligent network system using a universal switch control protocol and a service providing method are provided to substitute a technique for switching a bearer channel between IP and SSP and provide a recording medium read using a computer having a program for implementing an intelligent network system service method. CONSTITUTION: A service control system includes a GSMP master which performs a GSMP master system(301) and a GSMP slave for obtaining GSMP slave systems(305,307) capable of processing a signaling operation by a control of a service control system. The SCP, SSP and IP includes No. 7 protocol stacks(302,308,306) formed of MPT, SCCP and TCAP for the INAP operation transmission and receiving operation for providing an intelligent network service and performs a transmission and receiving operation through the conventional STP(304). The GSMP master(301) which performs a processor controller for a call process signaling operation performed by the ISUP protocol performs a transmission and receiving operation with a deamon of a GSMP slave with respect to a connection management message, a port management message, a configuration information message, a statistics message. The GSMP packets are capsulated in an Ethernet or asynchronous transfer mode method and is transmitted and received between the GSMP master(301) and the GSMP slaves(305,307).

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. It relates to a recording medium.

In the prior art, the intelligent network service is referred to as 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 (Service Switching Point) to serve 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 by passing INAP and ISUP messages through a signaling transfer point (hereinafter referred to as "STP") 104, which is generally 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 service (hereinafter referred to as "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 transmits 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 IP, which is a 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. The IP sends an address complete message (hereinafter referred to as "ACM") to the SSP1 to which the calling subscriber is connected as a response to the IAM (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. (Hereinafter referred to as "ARI") is transmitted to the SCP (212). SCP uses special resources possessed by the IP to inform the calling subscriber (Play Announcement; "PA"), Voice (Prompt and Receive Message; "PRM"), and digit collection (Prompt and Collect User Information (hereinafter referred to as " PCUI ") and a cancel command are sent to the SCP (213). The IP sends a response message (hereinafter referred to as "ANM") back to the SSP before providing the resource for the operation (SSP) to the calling subscriber (214-217). 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 substructure called a Distributed Processing Environment (hereinafter referred to as "DPE"), so that services can be more efficiently defined. Enable development and provision In the Object Management Group (hereinafter referred to as "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 multiservice-open network based control technology, General Switch Management Protocol (GSMP) for switch control, General Switch Control Protocol (QoS-extended version) to improve the 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 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 (hereinafter referred to as a "ROS") object. . 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 an 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-purpose switch control protocol for building a next-generation intelligent network suitable for an open structure, comprising: a service control system having the universal switch control protocol master; A service switching system having a universal switch control protocol slave for processing signaling under the control of the service control system; And an intelligent information providing system having a general-purpose switch control protocol slave to process signaling under the control of the service control system.

On the other hand, the service providing method in the intelligent network system using the general-purpose switch control protocol of the present invention, in the service providing method in the intelligent network system using the general-purpose switch control protocol in order to build a next-generation intelligent network suitable for an open structure, When the connected intelligent network originating subscriber enters the intelligent network service identification number, the identification number is analyzed to recognize the automatic collect call service, and a bearer channel is formed between the originating subscriber and the intelligent information providing system using the universal switch control protocol. First step; A second step of connecting a bearer channel between the service switching system and a predetermined called subscriber to perform a call originating to a predetermined input “phone number of a called subscriber” through the established bearer channel using the universal switch control protocol; ; A third step of transmitting an announcement to the called party asking whether the automatic collect call call has arrived and whether or not the call has been received; And a fourth step of releasing bearer channel connection between the called party and the intelligent information providing system, and connecting the channel through a call between the calling party and the called party.

Meanwhile, the present invention provides an intelligent network service subscriber with an intelligent network service system connected to a service switching system in order to provide a service in an intelligent network system using a general-purpose switch control protocol for building a next-generation intelligent network suitable for an open structure. A first function of recognizing the automatic collect call service by analyzing the identification number by inputting an intelligent network service identification number and configuring a bearer channel between the calling subscriber and the intelligent information providing system using the universal switch control protocol; A second function of connecting a bearer channel between the service switching system and a predetermined called subscriber to perform a call origination to a predetermined input “phone number of a called subscriber” through the established bearer channel using the universal switch control protocol; ; A third function of transmitting an announcement to an incoming subscriber asking for the reception and reception of an automatic collect call telephone; And a computer-readable recording medium recording a program for releasing a bearer channel connection between the called party and the intelligent information providing system and for realizing a fourth function of connecting the channel by a call between the calling party and the called party.

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. The service switching system and the intelligent information providing system each have a GSMP slave to become GSMP slave systems 305 and 307 that process signaling under the control of the service control system. In addition, SCP, SSP, and IP has No. 7 protocol stacks 302, 308, and 306, each consisting of MTP, SCCP, and TCAP, for transmitting and receiving INAP operations for providing an intelligent network service, and transmit and receive through an existing STP (304). The GSMP master 301, which is responsible for the processor controller function for the call processing signaling used by the existing ISUP protocol, is defined as a connection management message defined by the GSMP (connection management message, message direction: GSMP master-> GSMP slave), Port Management Message (Message Direction: GSMP Master-> GSMP Slave), Configuration Information Message (Message Direction: GSMP Slave-> GSMP Master), Statistics Message, Message Direction: GSMP Slave-> GSMP Masters) transmit and receive with 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 "ATM"), and 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. The message type field 402 is "16" in the case of a virtual channel connection add branch message, and "26" in the case of a 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. A flag 408 such as a 4-bit multicast, a quality of service (QoS) profile, etc. is present, 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 of size 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 to establish connection between SSP1-SSP2-SSP3 using GSMP, SCP sends a GSMP message "Add Branch 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 drives 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 by using the voice guidance and voice recording function provided by the IP. SSP1 performs call origination with the collected "phone number of the called subscriber" (510), which is also connected to the bearer channel connection from the SCP to the called 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. (518).

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 the intelligent network system using a general-purpose switch control protocol to build a next-generation intelligent network suitable for an open structure, A service control system having the universal switch control protocol master; A service switching system having a universal switch control protocol slave for processing signaling under the control of the service control system; And Intelligent information providing system having a universal switch control protocol slave for processing signaling under the control of the service control system Intelligent network system using a general-purpose switch control protocol, characterized in that having a. The method of claim 1, The universal switch control protocol master is an intelligent network system using a universal switch control protocol, characterized in that for transmitting and receiving connection management messages, port management messages, configuration information messages, statistical messages with the universal switch control protocol slave. The method of claim 2, The connection management message is sent from the universal switch control protocol master to the universal switch control protocol slave, the port management message is sent from the universal switch control protocol master to the universal switch control protocol slave, and the configuration information message is And a statistics message is transmitted from the universal switch control protocol slave to the universal switch control protocol master. The method of claim 1, The service control system, the service switching system and the intelligent information providing system is an intelligent network system using a universal switch control protocol, characterized in that it has 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 general-purpose switch control protocol to construct a next-generation intelligent network suitable for an open structure, When the intelligent network originating subscriber connected to the service switching system enters the intelligent network service identification number, the identification number is analyzed to recognize the automatic collect call service, and the bearer between the originating subscriber and the intelligent information providing system using the universal switch control protocol is identified. A first step of configuring a channel; A second step of connecting a bearer channel between the service switching system and a predetermined called subscriber to perform a call originating to a predetermined input “phone number of a called subscriber” through the established bearer channel using the universal switch control protocol; ; A third step of transmitting an announcement to the called party asking whether the automatic collect call call has arrived and whether or not the call has been received; And The fourth step of disconnecting the bearer channel connection between the called party and the intelligent information providing system, and connecting the channel through the call between the calling party and the called party. Service providing method in an intelligent network system using a general-purpose switch control protocol comprising a. In an intelligent network service system having a processor to provide a service in an intelligent network system using a general-purpose switch control protocol for building a next-generation intelligent network suitable for an open structure When the intelligent network originating subscriber connected to the service switching system inputs the intelligent network service identification number, the identification number is analyzed to recognize the automatic collect call service, and the bearer between the originating subscriber and the intelligent information providing system using the universal switch control protocol is recognized. A first function of configuring a channel; A second function of connecting a bearer channel between the service switching system and a predetermined called subscriber to perform a call origination to a predetermined input “phone number of a called subscriber” through the established bearer channel using the universal switch control protocol; ; A third function of transmitting an announcement to an incoming subscriber asking for the reception and reception of an automatic collect call telephone; And A fourth function of releasing a bearer channel connection between the called party and the intelligent information providing system and connecting the channel by a call between the calling party and the called party; A computer-readable recording medium having recorded thereon a program for realizing this.