KR100198928B1 - Signal processing method for intelligent network - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Signal processing method in application layer of intelligent network integrated structure.

2. The technical problem to be solved by the invention

It is intended to provide a method of processing signal information transmitted and received by an application layer of an integrated structure.

3. Summary of Solution to Invention

Intelligent Network Application Protocol User (INAP-User) 31, Upper-Multiple Coupling Control Function (U-MACF) 32, Single Coupling Control Function (SACF) 33, Application Service Element (ASE) 34, Lower Intelligent Network Application Protocol (INAP), which is composed of the Multiple Coupling Control Function (L-MACF) 35, and the lower layer, the TCAP 36, the Signal Connection Control Unit (SCCP) (37). And common line signaling, which consists of a message transfer unit (MTP), does not contain additional remote address information, and the target signaling points: Service Switching System (SSP), Intelligent Peripheral (IP), and Service Data System (SDP). ) Has the same structure to allow signal processing.

4. Important uses of the invention

Used in next generation intelligent network.

Description

Signal processing method in application layer of integrated structure supporting next generation intelligent network

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal processing method in an application layer of an integrated structure supporting next-generation intelligent networks. In particular, the present invention relates to a service switching point (SSP), a service control point (SCP), and an intelligent peripheral device (IP). Intelligent Peripheral and Service Data Points (SDP) in the next-generation intelligent network architecture, which is the main signal point, the signal processing method in the application layer of an integrated structure, which is the upper layer among No.7 common line signal systems of these 4 signal points. It is about.

Here, the next generation intelligent network corresponds to the INCS-1 based on the fact that the development stage of the standardization of the internationally recognized intelligent network is represented as INCS (Intelligent Network Capabilities Set) -1, INCS-2, INCS-3, etc. Refers to technical elements. The current INCS-1 has been in use since 1992, when the first Recommendation was issued in 1992, with the revised Recommendation being distributed internationally at the end of 1994 to be used in the development of national network technologies.

In addition, the integrated structure includes an Intelligent Network Application Protocol (INAP), which is a main component, and a Transaction Capabilities Application Part (TCAP) and a Signaling Connection Controller (SCCP). Common line signaling consisting of the Control Part and the Message Transfer Part (MTP) does not include additional peer-to-peer address information (e.g., a specific 'SACF' identifier) That is, they are formed in the same structure in the service exchange system (SSP), the intelligent peripheral device (IP), and the service data system (SDP).

In other words, each signaling point of next-generation intelligent network should use No.7 common line signaling system with 64 kbps / sec transmission rate of signal information to provide target intelligent network service, service switching system (SSP) and service control system (SCP). ), Between the service control system (SCP) and the intelligent peripherals (IP), and between the service control system (SCP) and the service data system (SDP), the message transfer unit (MTP), the signal connection control unit (SCCP), and the question and answer processing. TCAP and QCAP user should be used. Here, the present invention is applied to an application layer component including a question-and-answer function application unit (TCAP) and a question-and-answer function application unit user (TCAP-user) on these four signal points.

Currently, Korea provides two intelligent network services, credit call service and incoming call service, to the whole country. Currently, the application layer of the domestic intelligent network applies a functional structure using a common question processing function application unit (TCAP) to an application service element (ASE) separated by a corresponding service.

Here, the types of application service elements (ASE) separated by services include credit call application service elements for supporting the credit call service, call forwarding application service elements for the call forwarding service, and personal number for supporting the personal number service. Application service element, and virtual private network application service element to support virtual private network service.

However, the application service element for each service proceeds with almost similar control flow in the application layer functional structure, and the same parameters are applied differently according to each application service. It is causing. The domestic application layer functional structure should be converted to a service independent functional structure not related to a specific intelligent network service.

Therefore, even if a new intelligent network service is added, an application layer functional structure of a system platform type that does not need to apply additional functions in terms of functional structure should be established under the corresponding network capability (eg, INCS-1).

1 is a configuration diagram of a No.7 common line signal device to which the present invention is applied, in which, '1' is a message transfer unit (MTP), '2' is a signal connection control unit (SCCP), and '3' is comprehensive information. ISDN User Part (ISUP), '4' is TCAP, '5' is TCAP-user, '6' is User Represent each.

The message transfer unit (MTP) 1, which is composed of a signal data link function, a signal link function, and a signal network function, performs a function of delivering a signal message requested by a user of a message transfer unit without error.

The Signaling Connection Control Unit (SCCP) (2) is a message transfer unit (MTP), such as a global title translation, for transmitting circuit-related or non-line-related information between the switching system and the network special facilities to the connected or disconnected network layer service. Provide additional functionality.

The integrated information network user unit (ISUP) 3 provides a line connection method for providing voice and non-voice exchange services in the integrated information communication network (ISDN).

The TCAP 4 is used for the exchange of non-line related signaling information between the switching system and the switching system or between the switching system and special centers (e.g., service control system (SCP)) in a distributed environment within the network. It supports interaction between user application layers.

The TCAP-user 5 is a top-level function of the OSI layer that supports a communication environment of an application service in a network, and the present invention provides a TCAP 4 and a question-and-answer function. It applies to the functional relationship of the application part user (TCAP-user) 5 and the signal processing of the question-and-answer function application part user (TCAP-user) 5.

The user unit 6 performs a user function of the TCAP-user 5 in the exchange system or the service control system (SCP), and in the case of the exchange system, the call control function is the user unit. (User), and in the case of the service control system (SCP), the service logic function corresponds to the user (User).

Tables 1 to 3 show signal types transmitted and received between INAP and INAP-user.

These signals have been redefined for the external interface between INAP and INAP-user based on the operations currently defined in ITU-T Q.1218. Table 1 shows SSP / SCP related signal types, Table 2 shows IP / SCP related signal types and Table 3 shows SCP / SDP related signal types.

Each signal defines the class of operation, the direction of the signal, the type of signal, and the type that controls the dialog in INAP when each signal is received, and the dialog type describes the type that can be applied in the request signal type. .

As an example, since the InitialDP signal among the SSP / SCP related signals has an operation class of 2, the indication component and the failed component may be transmitted and received according to a rule defined by the TCAP.

If the operation class is 1, the indication component, the success component, and the failure component can be transmitted and received. If the operation class is 3, the indication component and the success component can be transmitted and received, and if the operation class is 4, the indication component. Only send and receive

Since the direction is from the service switching system (SSP) to the service control system (SCP), the first indication component must be transmitted from the service switching system (SSP) to the service control system (SCP), and the type of dialog must be started. Can only be performed.

Signal Types Related to SSP / SCP number Signal type Operation class direction Signal type Dialog type One ActivateServiceFiltering One SCP-SSP req / ind / res / con start 2 ActivityTest 3 SCP-SSP req / ind / res / con continue 3 AnalysedInformation 2 SSP-SCP req / ind / res / con start 4 AnalyseInformation 2 SCP-SSP req / ind / res / con continue 5 ApplyCharging 2 SCP-SSP req / ind / res / con continue 6 ApplyChargingReport 2 SSP-SCP req / ind / res / con continue 7 AssistRequestInstructions 2 SSP-SCP req / ind / res / con start 8 Callgap 4 SCP-SSP req / ind All types available 9 CallInformationReport 4 SSP-SCP req / ind Continue / End 10 CallInformationRequest 2 SCP-SSP req / ind / res / con continue 11 Cancel 2 SCP-SSP req / ind / res / con continue 12 CancelStatusReportRequest 2 SCP-SSP req / ind / res / con continue 13 CollectedInformation 2 SSP-SCP req / ind / res / con start 14 CollectInformation 2 SCP-SSP req / ind / res / con continue 15 Connect 2 SCP-SSP req / ind / res / con continue 16 ConnectToResource 2 SCP-SSP req / ind / res / con continue 17 Continue 4 SCP-SSP req / ind Continue / End 18 DisconnectForwardConnection 2 SCP-SSP req / ind / res / con continue 19 EstablishTemporaryConnection 2 SCP-SSP req / ind / res / con continue 20 EventNotificationCharging 4 SSP-SCP req / ind Continue / End 21 EventReportBCSM 4 SSP-SCP req / ind Continue / End 22 FurnishChargingInformation 2 SCP-SSP req / ind / res / con continue 23 HoldCallInNetwork 2 SCP-SSP req / ind / res / con continue 24 InitialDP 2 SSP-SCP req / ind / res / con start 25 InitiateCallAttempt 2 SCP-SSP req / ind / res / con start 26 Oanswer 2 SSP-SCP req / ind / res / con start 27 OCalledPartyBusy 2 SSP-SCP req / ind / res / con start 28 ODisconnect 2 SSP-SCP req / ind / res / con start 29 OMidCall 2 SSP-SCP req / ind / res / con start

30 ONoAnswer 2 SSP-SCP req / ind / res / con start 31 OriginationAttemptAuthorized 2 SSP-SCP req / ind / res / con start 32 ReleaseCall 4 SCP-SSP Continue / End 33 RequestCurrentStatusReport One SCP-SSP req / ind / res / con Start / Continue 34 RequestEveryStatusChangeReport One SCP-SSP req / ind / res / con Start / Continue 35 RequestFirstStatusMatchReport One SCP-SSP req / ind / res / con Start / Continue 36 RequestNotificationChargingEvent 2 SCP-SSP req / ind / res / con continue 37 RequestReportBCSMEvent 2 SCP-SSP req / ind / res / con continue 38 ResetTimer 2 SCP-SSP req / ind / res / con continue 39 RouteSelectFailure 2 SSP-SCP req / ind / res / con start 40 SelectFacility 2 SCP-SSP req / ind / res / con continue 41 Selectroute 2 SCP-SSP req / ind / res / con continue 42 SendChargingInformation 2 SCP-SSP req / ind / res / con continue 43 ServiceFilteringResponse 4 SSP-SCP req / ind start 44 StatusReport 4 SSP-SCP req / ind Continue / End 45 TAnswer 2 SSP-SCP req / ind / res / con start 46 TBusy 2 SSP-SCP req / ind / res / con start 47 TDisconnect 2 SSP-SCP req / ind / res / con start 48 TermAttemptAuthorized 2 SSP-SCP req / ind / res / con start 49 TMidCall 2 SSP-SCP req / ind / res / con start 50 TNoAnswer 2 SSP-SCP req / ind / res / conP start

Signal Types Related to IP / SCP number Signal type Oral Rating direction Signal type Dialog type One AssistRequestInstructions 2 IP-SCP req / ind / res / con start 2 Cancel 2 SCP-IP req / ind / res / con continue 3 PlayAnnouncement 2 SCP-IP req / ind / res / con continue 4 PromptAndCollectUserInformation One SCP-IP req / ind / res / con continue 5 SpecializedResourceReport 4 IP-SCP req / ind Continue / End

SCP / SDP related signal types number Signal type Operation class direction Signal type Dialog type One AddEntry One SCP-SDP req / ind / res / con Start / Continue 2 DirectoryBind One SCP-SDP req / ind / res / con start 3 ModifyEntry One SCP-SDP req / ind / res / con Start / Continue 4 RemoveEntry One SCP-SDP req / ind / res / con Start / Continue 5 Search One SCP-SDP req / ind / res / con Start / Continue 6 DirectoryUnbind 4 SCP-SDP req / ind End

Table 4 shows the types of signals transmitted and received between the TCAP and INAP, and the types of signals cited in the Q.771 Recommendation that defines the services of the TCAP.

These signals can be broadly divided into dialog-related signals (start, continue, end, and stop) and components (directive, success, failure, rejection, etc.).

number Dialog related signal type Signal type number Component related signal types Signal type One TC-UNI req / ind One TC-INVOKE req / ind 2 TC-BEGIN req / ind 2 TC-RESULT-L req / ind 3 TC-CONTINUE req / ind 3 TC-RESULT-NL req / ind 4 TC-END req / ind 4 TC-U-ERROR req / ind 5 TC-U-ABORT req / ind 5 TC-L-CANCEL ind 6 TC-P-ABORT ind 6 TC-U-CANCEL req 7 TC-L-REJECT ind 8 TC-R-REJECT ind 9 TC-U-REJECT req / ind

Hereinafter, the signal transmission process using the InitialDP and ConnectToResource signals will be described.

A user of the node-A, that is, an INAP-user, transmits an InitialDP request signal to the INAP, and the INAP of the node-A transmits a TC-INVOKE request signal to the question and answer function application unit (TCAP). In addition, the INAP of the Node-A transmits the TC-BEGIN request signal to the TCAP, and the T-CAP of the Node-A transmits the related signal message to the node through the common line signal network. Send to -B.

The Node-B's Question and Answer Function Application Unit (TCAP) sends a TC-BEGIN indication signal to INAP, and the Node-B's Question and Answer Function Application Unit (TCAP) sends a TC-INVOKE indication signal to INAP. . The INAP of the Node-B transmits an InitialDP indication signal to the user.

Next, the user of the Node-B, that is, the INAP-user, transmits the ConnectToResource request signal to the INAP, and the INAP of the Node-B transmits the TC-INVOKE request signal to the question-and-answer function application unit (TCAP). In addition, the INAP of the Node-B transmits the TC-CONTIBUE request signal to the TCAP, and the T-CAP of the Node-B transmits the related signal message to the node through the common line signal network. Send to -A.

The Node-A's Question and Answer Function Application Unit (TCAP) sends a TC-CONTINUE indication signal to INAP, and the Node-A's Question and Answer Function Application Unit (TCAP) sends a TC-INVOKE indication signal to INAP, and the Node- A's INAP sends a ConnectToResource indication signal to the user.

2 is a block diagram of an application layer supporting a conventional next generation intelligent network, and the functional definition of the functional blocks of the main component (INAP) follows Recommendation Q.1218.

The user of the main component (INAP-user) 21 is more comprehensive in its signal points such as Service Control System (SCP), Service Switching System (SSP), Intelligent Peripheral (IP), and Service Data System (SDP), In the case of a switching system, the call control function corresponds to the user (INAP-User), and in the case of the service control system (SCP), the service logic function corresponds to the user (INAP-User).

Multiple Combined Control Function (MACF) block 22 provides the ability to control multiple Single Combined Control Functions (SACFs) 23. However, if the signaling point is connected to only one other relevant signaling point (eg the structure of the SDP's application layer protocol when the SDP is connected to the SCP) this functional block is not required.

A single combined control function (SACF) block 23 applied between each node, such as a service exchange system (SSP), a service control system (SCP), a service data system (SDP), and an intelligent peripheral device (IP), has a number of applications between nodes. It provides the coordination function necessary to control the service element (ASE) 24. That is, the application service element (ASE) control function between the service exchange system (SSP) and the service control system (SCP), the application service element (ASE) control function between the service control system (SCP) and the intelligent peripheral device (IP), and the service There is an application service element (ASE) control function between the control system (SCP) and the service data system (SDP).

The application service element (ASE) function block 24 is a user of the question and answer processing function application unit (TCAP) 25 and is a set of operations. These operations are between Service Switching Function (SSF) and Service Control Function (SCF), between Service Control Function (SCF) and Service Resource Function (SRF), and It is applied between the service control function entity (SCF) and the service data function entity (SDF).

The TCAP 25 is used for exchanging non-line related signaling information between the switching system and the switching system or between the switching system and special centers (eg, service control system (SCP)) in a distributed environment within a communication network. It supports interaction between user application layers.

The Signaling Connection Control Unit (SCCP) 26 provides a message transfer unit (MTP), such as a global title translation, to transfer line-related or non-line-related information between the switching system and the network special facilities to a connected or disconnected network layer service. Provide additional functionality.

However, a new type of application layer functional structure proposed by the intelligent network application protocol recommendation (Q.1218) of the conventional international telecommunication union-telecommunication standardization sector (ITU-T) as shown in FIG. 2 is computer communication of OSI (Open System Interconnection). Since the conceptual structure of the connected application layer defined in the ISO 9545 (1989) document is applied as an unconnected intelligent network application layer as it is, it is not possible to accurately determine the structure of the intelligent network application protocol and its control procedure. there was.

Accordingly, the present invention proposes an application layer of an integrated structure that improves and corrects the problems of the conventional application layer functional structure, which is currently abstractly defined, and can process signal information transmitted and received with the outside and the interior in the application layer of the integrated structure. An object of the present invention is to provide a signal processing method in an application layer having an integrated structure.

1 is a configuration diagram of a common line signal device to which the present invention is applied;

2 is a configuration diagram of an application layer supporting a conventional next generation intelligent network;

3 is an integrated functional structure diagram of an application layer according to the present invention;

4A to 4D are signal processing flowcharts in an application layer of an integrated structure according to the present invention;

* Explanation of symbols for the main parts of the drawings

31: Intelligent Network Application Protocol User (INAP-User)

32: Upper-Multiple Combined Control Function (U-MACF)

33: single coupling control function (SACF)

34: Application Service Element (ASE)

35: sub-multiple coupling control function (L-MACF)

36: question and answer function application unit (TCAP)

37: Signal connection control unit (SCCP)

In order to achieve the above object, the present invention provides an application service element (ASE), a single combined control function block (SACF), a lower-multiple combined control function block (L-MACF), and a higher level that perform a user function of a question-and-answer function. -Applied to the next generation intelligent network including the intelligent network application protocol (INAP) consisting of the multiple coupling control function block (U-MACF), the question and answer function application unit (TCAP), and the main component user (INAP-User). In the signal processing method, after performing initialization, if the upper-multiple combined control function block receives an external signal of a request or response type from the INAP-User, the specific single combined control based on the received information flow The function block (SACF) is determined to transmit the relevant internal signal to the single combined control function block, and upon receipt of an indication or confirmation internal signal from the single combined control function block, the specific main component A first step of identifying a user (INAP-user) and transmitting a related external signal to the corresponding INAP-user; When the single combined control function block receives an internal signal from the upper-multiple combined control function block, it checks the specific application service element based on the received information flow, checks whether it belongs to the allowed application context, and then requests the request type. When receiving internal request signal of the request type from the application service element by transmitting the internal signal of the corresponding application service element, the internal component signal is transmitted to the sub-multiplex control function block, the final component is transmitted, and then the transmission message type is transmitted. A second step of determining and preparing a dialog part including an application context according to a message type, and then transmitting an internal dialog signal to a sub-multiplex control function block; When the single combination control function block receives the internal dialog signal from the sub-multiplex control block, it saves the application context only when the received dialog type is start, and then receives the internal component signal from the sub-multicombination control function block. Based on the received information flow, it checks a specific application service element, checks whether it belongs to the allowed application context, and sends an internal signal of indication type to the corresponding application service element to direct the indicated internal element from that application service element. A third step of transmitting an internal signal to a higher-multiplex control function block upon receiving the component signal; When the application service element function block receives the request type signal from the single combined control function block, it checks the component type, if the component type is indicated, assigns an indication number (I-ID), adds an operation class and an operation code, and the component type. The fourth step of adding only an operation code if the result of this return (final), and adding an error code if the component type is a return error, and then generating a related protocol data unit and transmitting a request-type internal component signal to a single combined control function block ; When the application service element function block receives an indication signal from the SCM block, the component type is checked. If the component type is an indication, the related protocol data unit is checked and the indication internal component signal is transmitted to the SBS block. And if the component type is a return (final) result or a return error, examine the relevant protocol data unit, recover the indication number (I-ID), and transmit the indicated internal component signal to the single combined control function block. step; When the sub-multi-coupled control block receives an internal component signal from the single-combined control function block, it transmits the associated component processing primitive (CHP) to the Q & A application part. A sixth step of only setting the relationship between the dialog number and the single combined control function block, and then sending the associated dialog processing primitive to the question-and-answer function application unit; And if the sub-multiplex control block receives a dialogue processing primitive from the Q & A application, the application context is examined if the received dialog type is start, and the received dialog number if the dialog type is other than start. After confirming the corresponding single combined control function block applied to, select the specific single combined control function block and transmit the internal dialog signal, and when receiving the component processing primitive from the Q & A application unit, the single single applied to the received dialog number And a seventh step of identifying the combined control function block, selecting a specific single combined control function block (SACF), and transmitting an internal component signal.

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

3 shows an integrated functional structure diagram of an application layer supporting a next generation intelligent network according to the present invention.

The main component user (INAP-user) 31 is more comprehensive in its signal points, such as Service Control System (SCP), Service Switching System (SSP), Intelligent Peripheral (IP), and Service Data System (SDP), In the case of a switching system, the call control function corresponds to the user (INAP-User), and in the case of the service control system (SCP), the service logic function corresponds to the user (INAP-User).

The upper-multiple coupling control function (U-MACF) 32 provides the user (INAP-user) 31 of the main components with the ability to access a particular single coupling control function (SACF) 33. That is, a specific single combination control function (SACF) 33 is identified based on a signal (request type and confirm type among signal types) received from the user (INAP-user) 31 of the main component, or The main component user (INAP-user) 31 is identified on the basis of the internal signal received from the specific single coupled control function (SACF) 33, and if necessary, the mutual association between the single combined control functions (SACF) 33 is performed. Provide a connection function.

SACF 33 provides the coordination functions needed to control multiple application service elements (ASE) 34 between nodes, which can share application service elements (ASE) that are being applied between different functional entities. Can be. Thus, there is no need to duplicate the same Application Service Element (ASE) 34 in the main component (INAP). If only one specific application service element (ASE) is maintained in the main component (INAP) and direct sharing is not possible, requesting SACF 33, MACF, response Request-related signal flows leading to SACF, Application Service Element (ASE), Application Service Element (ASE), SACF, Multiple Combination Control Function (MACF), requesting Complex signal processing is required, such as response-related signal flow leading to SACF.

An application service element (ASE) 34 is a set of operations, and a particular application service element (ASE) may be shared by one or more single association control functions (SACFs) 33.

The sub-multiple coupling control function (L-MACF) 35 provides the TCAP 36 with the ability to access a particular single coupling control function (SACF) 33. That is, a specific single combination based on the application context or dialog number of the signal (indication type among the dialog and component related signal types) received from the question and answer function application unit (TCAP) 36. Check the control function (SACF) 33. If this functional block does not exist in the integrated structure, a broadcast must be made to identify a particular single combined control function (SACF) 33 in which signals received from the TCAP 35 must be processed. That is, the question and answer function application unit (TCAP) 36 broadcasts the relevant signal directly to the multiple SACF 33, and the unrelated SACF 33 receives the received signal. And only the associated Single Combination Control Function (SACF) 33 should process the received signal. However, this causes excessive flow of internal communication messages.

The TCAP 36 supports the interaction between user application layers for exchanging non-line related signal information between the switching system and the switching system or between the switching system and the special centers in a distributed environment in a communication network. However, in the prior art, the TCAP is directly connected to each SACF, which is a characteristic of OSI's connection structure. Inappropriate.

The Signaling Connection Control Unit (SCCP) 37 provides a message transfer unit (MTP), such as a global title translation, to transfer line-related or non-line-related information between a switching system and network special facilities to a connected or disconnected network layer service. Provide additional functionality.

4A to 4D show signal processing flowcharts in an application layer of an integrated structure according to the present invention.

The present invention is not interrupted until the main component (INAP) receives an external signal until it has fully processed this signal. And, the meaning of the internal signal mentioned in the present invention may actually mean that the transmission and reception in the form of information, such as message type and data length, or simply call a function as in the C-programming language, and return the return value according to the situation Can mean delivering. That is, the internal signal is freely determined according to the implementation method.

In FIG. 4A, the main components (INAP) determined according to the characteristics of the system and the implementation method such as interprocess communication (IPC), information flow state machine (IFSM), operation and error definition, and loading encoding / decoding module Referring to the initialization process of the process, after performing the initialization process according to the request of the system operator in the idle state (101) before the ININA process starts the service (102), the process can start the service. A transition is made to the operational state (103).

Then, when the U-MACF block 32 receives the request or response external signal from the INAP-user 31 in the operating state 104, the received U-MACF block 32 receives the request or response external signal 105. The specific single combined control function (SACF) is determined based on the information flow (106), the related internal signal is transmitted to the SACF (33), and then transitioned to the operating state (108).

In operation state 104, when the upper-multi-coupled control function (U-MACF) block 32 receives an indication or confirmation internal signal from the SACF 33 (109), the specific principal component user ( Check the INAP-user (110), transmit the relevant external signal to the corresponding INAP-user (111), and transition to the operational state (108).

4B shows a signal processing flowchart when each single combined control function (SACF) block receives an internal signal from the U-MACF 32 and the L-MACF 35 in the operating state.

When the internal signal is received from the U-MACF 32 in the operation state 112 (113), it checks a specific application service element (ASE) based on the received information flow and checks whether it belongs to an allowed application context (AC). (114). Thereafter, after transmitting an internal signal of a request type to the corresponding application service element (ASE) (115), it waits for an internal component signal of the corresponding request type to be received from the corresponding application service element (ASE). (116).

When receiving the request-type internal component signal from the application service element (ASE) (117), and transmits the internal component signal to the sub-multiplex control function (L-MACF) (118). When the final component is transmitted (119), the transmission message type of the TCAP is determined (120), and a dialog portion including an application context (AC) is prepared according to the message type. (121, 122), and finally transmits the internal dialog signal to the sub-multiplex control function (L-MACF) (123) and transitions to the operating state (124).

When the SACF block receives an internal dialog signal from the L-MACF in operation (125), it stores the application context (AC) if the received dialog type is start. (126, 127) Wait for the associated component (128).

When the internal component signal is received from the L-MACF in the relevant component waiting state (129), after checking the specific application service element (ASE) based on the received information flow, and checking whether it belongs to the allowed application context (AC) ( 130, the internal signal of the indication type is transmitted to the corresponding application service element ASE (131), and the receiver waits for reception of an internal component signal of the indication type corresponding thereto (132).

Upon receiving the indicated internal component signal from the corresponding application service element (ASE) in the standby state (133), it transmits the internal signal to the upper-multiple combined control function (U-MACF) (134), and transitions to the operating state (135). ).

4C shows a signal processing flowchart when each application service element (ASE) functional block receives a request type signal and an indication signal from the SACF in an operational state.

In operation state 136, if the application service element (ASE) receives a request type signal from SACF (137), it checks the component type (138). If the component type is an indication component, an indication number (I-ID) is allocated (139), and an operation class and an operation code are added (140). In operation 141, a related protocol data unit (PDU) is generated (141), and the request type internal component signal is transmitted to the SACF (142).

If the component type is a return (final) result, only an operation code is added (144), a related protocol data unit (PDU) is generated (141), and a request type internal component signal is transmitted to SACF. After that, the process transitions to the operating state (142).

If the component type is a return error, an error code is added (145), an associated protocol data unit (PDU) is generated (146), and the request type internal component signal is transmitted to the SACF (142). , Transition to the operating state (143)

In operation state 136, if the application service element (ASE) receives an indication signal from the SACF (147), confirms the component type (148). If the component type is an indication or return (final) result, examine the associated protocol data unit (PDU) (149); if the component type is a return (final) result, then recover the indication number (I-ID) (151). Transmits the indicated internal component signal to the SACF (152), transitions to the operating state (143), and if the component type is indicated (150), transmits the indicated internal component signal to the SACF (152), and returns to the operating state. Transition (143).

If the component type is a return error (148), the associated protocol data unit (PDU) is examined (153), the indication number (I-ID) is recovered (151), and an indication type internal component signal is transmitted to SACF. (152), and the operation state transition (143).

4D shows an internal component signal from SACF, an internal dialog signal from SACF, a dialog handling primitive from TCAP, and a component from TCAP, with the L-MACF block in operation. A signal processing flowchart in the case of receiving a Component Handling Primitive (CHP).

When the internal component signal is received from the SACF in the operating state 153 (154), the relevant component processing primitive (CHP) is transmitted to the question and answer processing function application unit (TCAP) (155), and then the state transitions to the operating state (156). .

When the internal dialog signal is received from the SACF in operation state 153 (157), the received dialog type is checked (158), and if the dialog type is started, the relationship between the dialog number and the corresponding single combined control function (SACF) is established ( 159), after transmitting the relevant dialog processing primitive (DHP) to the question-and-answer function application unit (TCAP) (160), and transitions to the operating state (156). If the dialog type is other than the start of 158, the related dialogue processing primitive DHP is transmitted to the question and answer function application unit TCAP (160), and the operation state transitions (156).

Upon receiving the dialogue processing primitive (DHP) from the TCAP in operation state 153 (161), the received dialogue type is identified (162), and the application context (AC) is checked if the dialogue type is start (163), If the dialog type is 162 or continue or end instead of start, check the corresponding single combined control function (SACF) applied to the received dialog number (164), and then select a specific single combined control function (SACF) (165). In step 166, the internal dialog signal is transmitted to the SACF, and the operation state transitions to operation 156.

In operation state 153, upon receiving the component processing primitive (CHP) from the TCAP (167), after confirming the corresponding SACF applied to the received dialog number (168) by selecting a specific SACF (169) The internal component signal is transmitted to the SACF (170), and transitions to the operating state (156).

The present invention made as described above is the main component of the next generation intelligent network (INAP) upper-multiple coupling control function (U-MACF), lower-multiple coupling control function (L-MACF), application service element (ASE), single coupling By forming a control function (SACF) block in an integrated structure to process signals, it is not necessary to duplicate the same application service element (ASE) in the main component (INAP), without changing the protocol structure according to the target signal point. In addition, the software can be used in the form of a package to shorten the development period, and the application layer functional structure is converted into a service independent functional structure not related to a specific intelligent network service. There is no need to apply.

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

Claims (1)

ASE (Application Service Element) 34, Single Association Control Function (SACF) 33, Sub-Multiple Association Control Function Block (L) Intelligent Network Application Protocol (INAP), which is a major component consisting of Lower Multi Association Control Function (MACF) (35) and Upper Multi Association Control Function (U-MACF) (32). In the signal processing method applied to the next generation intelligent network, which comprises a Transaction Capabilities Application Part (TCAP) 36 and an INAP-User (31), After the initialization, if the upper-multiple combined control function block 32 receives an external signal of a request or response type from the INAP-User 31, the specific single combined control function based on the received information flow. Determining a block (SACF) 33 and transmitting the related internal signal to the single combined control function block 33, and receiving an indication or confirmation internal signal from the single combined control function block 33 A first step of identifying a main component user (INAP-user) 31 and transmitting a related external signal to the corresponding INAP-user 31; When the single combined control function block 33 receives an internal signal from the upper-multiple combined control function block 32, it checks the specific application service element 34 based on the received information flow, and allows the application context (AC). After checking whether belongs to the internal signal of the request type is transmitted to the corresponding application service element 34 and receives the request-type internal component signal from the application service element 34 to the sub-multiplex control function block 35. After transmitting the internal component signal, and transmitting the final component, after determining the transmission message type to prepare a dialog portion including the application context according to the message type, the internal dialog signal to the sub-multiple combination control function block 35 Transmitting a second step; When the single combine control function block 33 receives the internal dialog signal from the sub-multiple combine control function block 35, the application context is stored only when the received dialog type is start, and then the sub-multiple combine control function block ( When receiving the internal component signal from 35), it checks the specific application service element 34 based on the received information flow, checks whether it belongs to the allowed application context, and checks the internal signal of the indication type for the corresponding application service. Transmitting an internal signal to the higher-multiplex control function block 32 upon receiving the directed internal component signal from the corresponding application service element 34 by transmitting to the element 34; When the application service element function block 34 receives the request-type signal from the single combined control function block 33, it checks the component type and if the component type is indicated, assigns an indication number (I-ID), an operation class and an operation code. If the component type is the return (final) result, add the operation code only.If the component type is the return error, add the error code, and then generate the relevant protocol data unit to request the single combined control function block 33. A fourth step of transmitting an internal component signal; When the application service element function block 34 receives the directed signal from the single combined control function block 33, it checks the component type, and if the component type is indicated, examines the relevant protocol data unit, and then the single combined control function block 33 Transmit the indicated internal component signal, check the relevant protocol data unit if the component type is the return (final) result or return error, recover the indication number (I-ID), and then use the single combined control function block (33). Transmitting a directed internal component signal) When the sub-multiple combined control function block 35 receives the internal component signal from the single combined control function block 33, it transmits the relevant component processing primitives (CHPs) to the question-and-process function application unit 36, and the internal dialog signal. Step 6 of establishing a relationship between the dialog number and the single combined control function block 33 only when the received dialog type is a start, and then transmitting the related dialog processing primitive to the question-and-answer function application unit 36. ; And When the sub-multiplex control function block 35 receives the dialog processing primitive from the question-and-answer function application unit 36, the application context is checked if the received dialog type is start, and the dialog type is other than start. After confirming the corresponding single combined control function block 33 applied to the received dialog number, selects a specific single combined control function block 33 and transmits the internal dialog signal, and the component from the question-and-answer function application unit 36 Receiving a processing primitive, identifying a corresponding single combined control function block 33 applied to the received dialog number, selecting a specific single combined control function block (SACF), and then transmitting an internal component signal; Signal processing method in the application layer of the integrated structure supporting the next generation intelligent network.