KR950011473B1 - An electronic exchager - Google Patents

Abstract

forming an initiating message transmitted to free phone/credit call service control blocks to transmit the initiating message to a free phone/credit call application service element, operating an initiating management timer, and waiting a response to the initiating message from a corresponding application process; if no response exists, retransmitting the initiating message until the response is received from the free phone/credit call application service element; and if the response is received, stopping the operating initiating management timer, and initiating free phone/credit call service associated data.

Description

Number 7 (No. 7) signaling method of service exchange

1 is a schematic configuration diagram of a service exchanger to which the present invention is applied.

2 is a structural diagram of an intelligent network service controller mounted in a service exchanger.

3 is an illustration of an initialization message and a message element used for initialization.

4 is a flowchart of an initialization process of an application process according to the present invention.

* Explanation of symbols for main parts of the drawings

9: Q & A function application part 10: CHA

11: DHA 12: THA

13: SCCP 14: MTP

15: BCPI 16: FPSM

17: FPSC 18: FPOE

19: FPDO 20: CCSM

21: CCOC 22: CCOE

23: CCDO 27: Application Service Element (ASE)

The present invention relates to a method for initializing a layer 7 protocol application process (AP) among No. 7 signaling protocols of a service exchange.

Among the No.7 signaling protocol processing functions of the SSP developed to provide intelligent network services, the layer 7 protocol and the user part are mounted on the same processor and process several services simultaneously. The procedures and procedures should work independently of each other and have no effect.

Accordingly, an object of the present invention is to provide a standardized initialization method for simultaneously processing an intelligent network service of a layer 7 protocol application processor among No. 7 signaling protocol processing functions of a service exchanger (SSP).

In order to achieve the above object, the present invention provides a protocol processing unit including a component processing block, a dialogue processing block, and a transaction distance block, a signal processing control unit and a message transfer unit, a basic call processing matching block, and incoming charges. It includes a service processing unit having an application service element consisting of a block for performing a credit call operation operation and an incoming charge / credit call dialog execution block, and includes most subscribers and trunk line matching, various signaling devices, and time switches. A subscriber rehabilitation subsystem that performs self and maintenance functions; A central control subsystem performing overall operation management functions of the system; A system correctional subsystem; A central control subsystem performing overall operation management functions of the system; No. 7 (No. 7) applied to an all-electronic service exchange system consisting of a network sub-system located at the center of the system and performing a function of connecting the subscriber-switching systems with each other or between the subscriber-switching subsystem and the central control subsystem. 7) In the method of initiating the signaling layer 7 protocol application service element, when the incoming billing / credit call application process starts to operate, the billing / credit call operation is indicated by specifying the corresponding application process in the originating part. Initiate an initialization message transmitted to the execution block and transmit it to the incoming billing / credit call application service element, and simultaneously operate the initialization management timer and wait for a response from the application service element, and after performing the first step, initialization There is no response from the application element until the administrative timer expires. The second step of repeating the retransmission of the initialization message until the application service element response message arrives, and upon receiving the initialization response message from the incoming billing / credit call application service element, performing the initialization. And a third step of stopping the management timer and initializing and terminating the data related to the incoming billing / credit call application service.

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

FIG. 1 is a structural diagram of an electronic service switch configured by adding an intelligent network service control subsystem (ISCS) to provide an intelligent network service exchange function. In the figure, 1 denotes an Access Switohing Subsystem (hereinafter referred to as ASS), 2 denotes an Inter Connection Subsystem (hereinafter referred to as INS), and 3 denotes a Central Control Subsystem (hereinafter referred to as CCS). 4) basic call processing unit, 5 is intelligent service control subsystem (ISCS), 6 is billing, measurement / statistics, test / fault detection unit, 7 is protocol processing unit, 8 is service processing unit, 24 is disk drive, 25 is Magnetic tape drives 26 represent workstations respectively.

ASS (1) is equipped with subscriber and relay line matching, various signaling devices, time switches, etc. to perform most call processing functions and self-maintenance functions to have a system horizontally distributed structure.

Up to 60 of these ASS (1) can be mounted on the system as a whole.

INS (2) is located in the center of the system to connect the ASS (1) with each other or between the ASS (1) and the CCS (3), the space (space) switch is located here. It is also responsible for generating and supplying a system clock by providing a moving device by performing number translation, routing, and space switch connection functions among call processing functions.

CCS (3) is a subsystem that performs the overall operational management functions of the system, as well as system-wide maintenance, testing and measurement, billing and statistics, as well as auxiliary storage disk drive 24 and magnetic tape drive (25). Control and provide operator matching functions.

The billing, measurement / statistics, test / device detection section 6 detects billing processing, statistical information processing, system failures, and the like, and manages the system operation information so that the operator can access the information through the workstation 26.

The intelligent network service control unit 5 and the basic call processing unit 4 are software systems. The intelligent network service control unit 5 manages the communication between the service processing unit 8 that manages the service and the service control system connected to the common line signal network. It consists of a protocol processing unit (7), the service processing unit (8) is composed of an application process that is responsible for intelligent network service call processing and application service elements that support the function for a particular service.

The basic call processing section 4 includes functional blocks such as a line matching control block, a time switch control block, a signal device control block, a traffic control block, a signal connection control block, a call mixing control block, a message transfer control block, a recording guide control block, and the like. It consists of.

FIG. 2 is a structural diagram of an intelligent network service control subsystem (ISCS), where 9 is a question processing function application unit, 10 is CHA, 11 is DHA, 12 is THA, 13 is SCCP, 14 is MTP, and 15 is BCPI, 16 is FPSM, 17 is FPSC, 18 is FPOE, 19 is FPDO, 20 is CCSM, 21 is CCSC, 22 is CCOE 23 is CCDO, and 27 is Application Service Element (ASE).

As shown in the figure, the intelligent network service control unit 5 is a basic call processing access block 15 (BCPI: Basic Call Processing Interface) in charge of intelligent network service call processing, and an incoming billing service control block 17 (FPSC) which is an application process function. : Free Phone Service Control), Incoming Billing Service Management Block 16 (FPSM: Free Phone Service Management), Credit Call Service Control Block 21 (CCSC: Credit Call Service Contgrol), Credit Call Service Management Block 20 ( CCSM (Credit Call Service Management), Free Call Operation Execution Block (18) (FPOE: Free Phone Dialogue Operation) (FPDO: Free Phone Dialogue Operation) Credit Call Operation Execution Block (CCOE), Credit Call Dialogue Operation Block (CCDO), and Dialog Processing Block (11) in charge of functions of the Q & A function application unit. (D Dial Handling Handling (HA), Component Handling Block (10) (CHA: Component Handling), Transaction Processing Block (12) (THA: Transaction Handling), Signaling Connection Control Unit 13 (SSCP: Signaling Connection Control Part), Message Transfer Unit (14) A (MTP: Message Transfer Part) is provided.

The basic call processing access block (BCPI) 15 is a block dedicated to the interconnection function between the intelligent network block and the block required for the basic exchange function for intelligent network service processing. Communicating requests for additional information, connecting to announcements, and requesting for billing

When the incoming billing service control block (FPSC) 17 is notified of the incoming billing service request from the basic call processing access block 15, the incoming billing service control block (FPSM) 16 checks whether the service can be provided and then performs the incoming billing operation. Block (FPOE) 18 requires a qualification check and translation of the service request. When receiving a response from the incoming billing operation execution block 18, the service is analyzed and the service call request is made to the basic call processing access block 15 when the service is available. When the call is connected and the service is provided, the incoming billing service management is performed. Notify block 16. If the service cannot be provided, the basic call processing access block 15 is requested to send the announcement or tone to the service user. In addition, when receiving a service restriction request from the incoming billing operation execution block 18, when a service is not provided, or when a call connection fails, the incoming billing service management block 16 is notified to perform management thereof.

The incoming billing service management block 16 interacts with the incoming billing service control block 17 and the basic call processing access block 15 while collecting and managing various data related to the incoming billing service to perform various functions according to the provision of the incoming billing service. The block to execute. Investigate the availability of the incoming billing service at the request of the incoming billing service control block 17, block the service call according to the call restriction request, manage the guidance information for the user, and perform various operations and maintenance data related to the service provision. Perform management and reporting functions.

The incoming billing operation execution block 18 is a block that performs an operation processing procedure for the incoming billing service. Refer to the incoming billing service control block 17 interface function, operation association function, indication number and dialog number management, operation / error definition. This function performs encoding and decoding functions of component parameter terms, operation class and timer value display functions. Then, the receiving charge dialog execution block 19 performs a function of generating a dialog processing request for component transmission, an indication of service quality, and an interface function with the component processing block 10.

The incoming charging dialog execution block 19 is a block for performing a dialog operation procedure related to transmission and reception of a component by interaction with the incoming charging operation execution block 18. It performs a dialog operation function according to the instruction of the incoming billing operation execution block 18, a function of notifying that the component is received together with the dialog type, and matching with the dialog processing block.

The credit call service control block 21, the credit call service management block 20, the credit call operation execution block 22, and the credit call dialog execution block 22, which are credit call service execution blocks, are called charge charge service execution blocks. The service control block 17, the incoming billing service management block 16, the incoming billing operation execution block 18, the incoming billing dialog execution block 19 and the credit call service basically perform the same functions.

The QCAP 9 is divided into a component sublayer and a transaction sublayer. The component sublayer provides a function for delivering components between specific application service elements, and the transaction sublayer provides a dialog function for delivering a transaction message. To provide.

When the dialog processing block (DHA) 11 receives the dialog primitive from the dialog execution block of the application service element, it receives a component corresponding to the received dialog from the component processing block (CHA) 10 and forms a transaction primitive with user data. Transfer to transaction processing block (THA) 12. In addition, upon receiving the transaction primitive from the transaction processing block 12, a dialog primitive is formed and transmitted to the dialog performing blocks 19 and 23 of the application service element, and the component is delivered to the component processing block 10.

When the component processing block 10 receives the component primitive from the operation execution block of the application service element, the component is encoded and stored for each dialog, and the corresponding component is delivered to the dialog processing block 1! At the request of the dialog processing block. The component is discarded by the dialog termination message of the dialog processing block. In addition, when receiving a component from the dialog processing block 11, it checks the component error and forms a component primitive according to the result and the type of the component, and transmits the component primitive to the operation performing blocks 18 and 22 of the application service element.

When the transaction processing block 12 receives the transaction primitive from the dialog processing block 11, the transaction processing block 12 forms a question processing message and transmits the message to the signal connection controller. According to the type of transaction primitives are formed and transferred to the dialog processing block (11).

Signal connection control unit (SCCP) 13 is a protocol of the No.7 common line signaling method for transmitting information by using the service of the message transfer unit 14 and the message transfer unit 14 is responsible for the message transfer function in the signal network It is a lower layer protocol of No.7 common line signaling method.

Here, a primitive is a functional message for processing an interface between two adjacent layers, and a component represents a protocol data unit exchanged. The dialog primitive is a message for processing an interface between the application service element (ASE) 27 and the dialog processing block (DHA) 11, and the component primitive is for processing an interface between the application service element 27 and the component processing block 10. The transaction primitive is a message that processes the interface between the dialogue processing block 11 and the transaction processing block 12.

3 is an initialization message used for initialization of the question-and-answer function application unit (TCAP) of the service switch (SSP).

SSP_FP_AsePidRQ_SE is an initialization message transmitted from the incoming billing service control block 17 of the incoming billing application process to the incoming billing operation execution block 18 of the incoming billing application service element, and is an initialization request message for processing the corresponding service. The Roh has an Originating Part that represents the function that initially requested the initialization, which refers to the incoming billing application process.

SSP_FP_AsePidRQ_SE is an initialization message transmitted from the credit call service control block 21 to the credit call operation execution block 22 of the credit call application service element, and is an initialization request message for processing the corresponding service. It has an Originating Part that represents the requested function, which in this case refers to a credit calling application process.

SSP_FP_AsePidRP_ES is an initialization message transmitted from the incoming billing action performing block 18 of the incoming billing application service element to the incoming billing service control block 21 of the incoming billing application process. There is a FPOE Process ID having the process number of the incoming billing operation execution block 18 of the incoming billing application service element which is responsible for processing the incoming billing service.

SSP_CC_AsePidRQ_ES is an initialization message delivered from the credit call operation execution block 22 of the credit call application service element to the credit call service control block 21 of the credit call application process. The CCOE process ID having the process number of the credit call operation execution block 22 of the credit call application service element which is responsible for processing the credit call service.

SSP_FP_PIDr_ED is an initialization message transmitted from the incoming billing operation performing block 18 of the incoming billing application service element to the dialog processing block 11 of the answer processing function application unit 9, and the application service element 27 for processing the corresponding service. FPOE process ID indicating the process number of the incoming billing operation execution block 18 and the incoming billing dialog execution block 19 which perform the processing of the corresponding service. There is an Originating Part that displays the FPOE process ID and the function that first initiated the initialization.

SSP_CC_PIDr_ED is an initialization message transmitted from the credit call operation performing blocks 22 of the credit call application service elements 22 and 23 to the dialog processing block 11 of the question-and-answer function application unit 9 and applied for processing the corresponding service. An initialization request message between the service element 27 and the question-and-answer function application unit 9, and the message element includes a process number of the credit call operation execution block 22 and the credit call dialog execution block 23 that perform processing of the corresponding service. There is an Originating Part that displays the CCOE Process ID, CCOD Process ID, and the function that first initiated the initialization.

SSP_FP_PIDi_DE is an initialization message transmitted from the dialogue processing block 11 of the question-and-answer function application unit 9 to the incoming billing operation execution block 18 of the incoming billing application service element 18 and 19, and a response message to the SSP_FP_PIDr_ED message. It has a message element, DHA process ID and DHA process ID, which are the process number of the dialog processing block 11 and the component processing block 10 which are in charge of the Q & A processing for processing the corresponding service.

4 is a flowchart illustrating an initialization process as an application process according to the present invention.

First, when the incoming billing credit call application process starts operation (31), the SSP_FP / CC_AsePidRQ_SE message is created by first specifying the application process in the Originating Part (32), and the initialization message is called It transmits to the application service element 27 (33). At this time, the initialization management timer is operated (34) and waits for a response from the corresponding application service element (35).

If there is no response from the corresponding application service element until the initialization management timer expires, the SSP_FP / CC_AsePidRQ_SE message is transmitted again to the application service element (36). If there is no response from the application service element, the above process is repeated.

Upon receipt of the initialization response message SSP_FP / CC_AsePidRQ_ES from the incoming billing / credit call application service element 27 (37), the active initialization management timer is stopped and the incoming billing / credit call service related data is initialized (38). This completes the initialization process of the incoming billing / credit call application process (39) and starts the processing of the incoming billing / credit call service for the incoming billing / credit call service call.

Accordingly, the present invention carried out by the above process, by initializing the application process of the layer 7 protocol of the protocol processing function of No. 7 signaling of the electronic service exchanger according to the standardized initialization procedure and method for various services. It has the effect of providing a standardized interface that can provide services quickly and easily by performing initialization in the same way for new services to be processed later without affecting them at all.

Claims (1)

Message processing function application unit 9 (TCAP), signal connection control unit 13 (SCCP), and message delivery composed of component processing block 10 (CHA), dialog processing block 11 (DHA), and transaction processing block 12 (THA). Protocol processing unit 7 having unit 14 (MTP), basic call processing matching (BCPI) 15, incoming billing / credit call operation performing blocks (FPOE / CCOE; 18, 22) and incoming billing / credit call It includes a service processing unit (8) having an application service element (27) consisting of a dialogue execution block (FPDO / CCDO) 19, 23, and includes most subscribers and relay line matching, various signaling devices, time switches, etc. A subscriber exchange subsystem (ASS) for performing processing and self-maintenance functions; A central control subsystem (3; CCS) that performs overall operational management functions of the system; Located in the center of the system is applied to the all-electronic service exchange consisting of a network subsystem (INS; 2) to perform the function of connecting the ASS (1) with each other, or between the ASS (1) and the CCS (3) Number 7 (No.7) In the method of initiating a signaling layer 7 protocol application process, when an incoming billing / credit call application process starts to operate, an incoming call is indicated by specifying the corresponding application process in the originating part. Initiate an initialization message transmitted to the charge / credit call operation execution blocks 18 and 22 and send it to the incoming billing / credit call application service element 27 while simultaneously operating an initialization management timer and waiting for a response from the application element. After performing the first steps 31 to 35 and the first steps 31 to 35, if there is no response from the corresponding application service element 27 until the initialization management timer expires, the response is returned. A second step 36 of repeating the retransmission of the initialization message until a response message arrives to the application service element if there is no response from the service element 27; and the incoming billing / credit call application service. And upon receipt of an initialization response message from element 27, a third step (37 to 39) to stop the running initialization management timer and to initialize and terminate the incoming billing / credit call service related data. Initialization method of application service elements.