KR100205038B1 - Reference number allocating and utilizing method in isdn - Google Patents

Abstract

The present invention relates to a method for allocating a call reference number for effective control and a method for use in a signal connection control unit when a large number of users of an integrated information communication network receiving a connectionless service of a signal connection control unit are processed. A first step of including its own call reference number in the first message sent to the side exchange, the second step of including its call reference number in the first message sent from the destination exchange to the calling side exchange, and the originating call A third step of transmitting unit data including the call reference number of the other station in the connectionless end-to-end message to the destination station exchange through the signal connection control unit in the integrated information communication network user part of the side or destination side exchange; Sending a call release signal from a user unit of the integrated information network; In step 4, the call release signal is completed by the other station of the station that has sent the call release signal.

Description

Method of Assigning and Using Call Reference Numbers of Integrated Information Network

The present invention aims to shorten the processing time of a message connection control unit connectionless message received by a local exchange by directly using a call reference number used for end-to-end information transmission in an integrated information communication network, and maximizes available resources of the exchange. have.

The present invention shortens the processing time of the signal connection control unit connectionless message received by the local exchange by appropriately using the call reference number used in the end-to-end information transmission in the integrated information communication network of CCITT No.7 common line signaling system, It is about how to maximize the existing resources of the exchange.

Hereinafter, the CCITT No. 7 common line signaling method will be described with reference to the drawings.

1 is a functional block diagram of a CCITT No.7 common line signaling method.

Referring to FIG. 1, the CCITT No. 7 signaling system is largely composed of a message transfer part (MTP) 7 and a user part 100, and the user part 100 is an application. A specific element function unit 1, a Transaction Capabilities Application Part (TCAP) (2), an Intermediate Service Part (ISP) (3), and a telephone user unit ( The message delivery unit is divided into various types such as a telephone user part (TUP) (5), an ISDN user part (ISUP) (4), and a signaling connection control part (SCCP) (6). (7) is in charge of the message transmission function in common to all user parts in the exchange.

The signal connection control unit 6 is an essential element in a comprehensive information communication network, an intelligent network, and a mobile communication network, and provides subscribers with connectionless and connected network services for transmitting circuit and non-line related signal information to the subscriber. (Transaction Capabilities Application Part: TCAP) (2) is responsible for the handling of questions and answers between exchanges and special centers.

In addition, the integrated information network user unit (4) is responsible for the transmission of signal information between stations in the integrated information communication network and user additional service functions, the mutual information between the integrated information network user unit 4 and the signal connection control unit (6) The connection 8 is divided into connected and disconnected services.

In the present invention relates to a dual connectionless service.

In an integrated telecommunication network, connectionless services are mainly used for end-to-end signaling.

2 is a diagram illustrating the mapping of the TDX-10 integrated information communication network user unit and the signal connection control unit.

Referring to FIG. 2, the signal connection control unit processor 12 may be configured in plural and may be directly connected to all the general information communication network user unit processors 11. Similarly, the integrated information communication network user unit processor 11 may be directly connected to all signal connection control unit processors 12. The integrated information network user unit is mounted on some of the main processors in the TDX-10 distributed module with a maximum of 64.

The mapping of the message received to the signal connection control unit is not a problem when the integrated information network user unit 4 receiving the connectionless service of the signal connection control unit 6 exists in only one processor, but the TDX of FIG. For the efficiency of processing speed and ease of implementation, such as -10, it is a problem to deliver a message received from the signal connection controller to an associated processor when it is distributed.

As a method of solving this problem, a method of broadcasting to a plurality of processors may be considered, but in this case, processing time is delayed and resources are wasted.

Therefore, in the present invention, by using appropriately the call reference number used for end-to-end information transmission in the integrated information communication network to shorten the processing time of the message connection control unit connectionless message received by the local exchange, and maximize the available resources of the exchange To provide a method.

1 is a functional block diagram of CCITT No.7 common line signaling method,

2 is a mapping configuration diagram of the TDK-10 integrated information network user unit and the signal connection control unit,

3 is a flowchart illustrating a connectionless service message of a signal connection controller in an integrated information communication network according to an embodiment of the present invention.

4 is a call reference number allocation method according to an embodiment of the present invention,

5 is a flowchart illustrating a selection of a processor of a comprehensive information communication network user unit according to an embodiment of the present invention.

The present invention relates to a user part processor for a unit data (UDT) message received from a signal connection control unit by appropriately allocating a call identifier of a call reference number existing in a user information message of a comprehensive information communication network and effectively using it in the signal connection control unit. A method for allocating and using a call reference number of a total information communication network connectionless signaling method for direct transmission without an intermediate connection to (11), including a call reference number in a first message sent from an originating exchange to a called exchange. Step 1, a second step of including its call reference number in the first message sent from the called exchange to the calling exchange, and an unconnected end-to-end message in the integrated information communication network user unit of the calling or called exchange. The unit data including the call reference number of the other station is A third step of transmitting to the opposite station exchange, a fourth step of sending a call release signal from the integrated information communication network user unit of the originating or receiving side exchange, and a call release from the other station of the station that has sent the call release signal in the fourth step The fifth step is to complete the call release by receiving the signal.

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

FIG. 3 is a flowchart illustrating a connectionless service message of a signal connection controller in a comprehensive information communication network according to an embodiment of the present invention, FIG. 4 is a method of assigning a call reference number according to an embodiment of the present invention, and FIG. 5 is an embodiment of the present invention. Fig. 1 is a flowchart illustrating the selection of the processor of the integrated information network user unit of the signal connection controller according to the present invention.

Referring to FIG. 3, the integrated telecommunication network user unit uses a signal connection controller to exchange end-to-end messages associated with a particular call end-to-end. First, at an originating exchange 15 that wants to use a connectionless service. The first forward message (ffm) is sent to the destination exchange 17 including its Call Reference (CR) (CR-A) (21 to 23).

At this time, the call reference number of the own station is used to distinguish a specific call in the integrated information communication network user unit, and is then loaded with the same value in the call reference number parameter of the non-line information message received from the other party.

In addition, the sending ffm may be an IAM (Initial Address Message), INR (Information Request), etc. These messages through the MTP of the local station (21), through the relay switch (22), the destination message The transfer unit (MTP) is transmitted to the integrated information network user unit (ISUP) (23). The comprehensive information communication network user part of the destination exchange 17 receiving the message transmits it to the source exchange 15 by including its call reference number (CR-B) in the first backward message (fbm). . In this case, fbm may be an address complete message (ACM), an information message (INF), and the like, and these messages are transmitted through a message transfer unit (MTP) (24), through an intermediate exchange (25), and an originating message transfer unit (MTP). In step 26, it is transmitted to the integrated information network user unit (ISUP).

Afterwards, the associated end-to-end non-line message is handled by a specific integrated information network user part processor, and thus the messages associated with it must be delivered to a specific main processor.

Accordingly, in the integrated information communication network user unit (ISUP) of both stations, the signal connection control unit (CR-A or CR-B) is included in an endless connection end-to-end message (eem). SCCP) to N-UNITDATA req. Send a primitive (27 or 30).

In this case, the eem may be a user-to-user information (USR) message, a supplementary service message, a request and response message for additional call-related information using a connectionless service.

Receiving the N-UNITDATA req., The SCCP transmits a unit data (UnitData: UDT) message including an eem to the signal connection controller of the other party via the relay station (28 or 31), and receives the signal connection controller of the receiving side (28 or 31). SCCP) is N-UNITDATA ind. Through the primitives, the information is transmitted to the receiving ITE user unit (29 or 32). Thereafter, the eem transfer between the users of the integrated information and communication network in both countries may continue until the call is released in the same manner as the above procedure. These series of messages are initiated by a specific processor among a plurality of general-purpose telecommunication network user part processor 11, and a message received in this regard must be sent to a specific processor. Therefore, the SCCP receives a specific processor. I need a way to do it.

A method of finding a specific processor in the signal connection control unit (SCCP) will be described with reference to FIG. 5.

In the integrated information communication network, the dismissal is completed by either user unit sending REL (Released) through the message transfer unit (MTP) (33, 37) and receiving RLC (Release Complete) (36) (38).

When the call is released, the delivery of the associated disconnected message is also terminated.

Referring to FIG. 4, the method of assigning call reference numbers is as follows.

First, the main processor identifier 41 is a value for identifying the main processors mounted in the TDX-10 distributed module, and each main processor has a unique value.

The integrated information network user unit allocates the main processor identifier 41 to a specific 6 bit of the call reference number 42 when starting the connectionless service of the signal connection controller. The 40-bit call reference number 42 identifies the counterpart. It consists of 14 bits of signal point code (44), 2 bits of spare (45), and 24 bits of call identifier (43) .The double signal point code 44 is determined by the other station, and spare is not available. Six bits of the allocated call identifier 43 should be allocated as the main processor identifier.

At this time, the specific bit of the call identifier 43 must be allocated 6 bits consecutively from the start point or the most significant bit promised with the signal connection control unit to obtain the processing efficiency. The remaining bits can be used to identify each call in the Integrated Services User Unit processor. The call reference number 42 thus allocated is included in ffm 21 or fbm 24 in FIG. 3 and continues to be included in the eem 29 or 32 coming from the subsequent partner node.

All eem messages between the users of the ICT network are communicated to the UDT 28 or 31, which are connectionless messages of the signal connection control unit.

Referring to FIG. 5, when the signal connection controller (SCCP) receives a unit data message from the signal connection controller (SCCP) as shown in the window 27 to 32 of FIG. Subsystem number is separated from (52), and the separated subsystem number is examined (53), and if the integrated information network user portion, the call reference number is separated from the message (54). Thereafter, the integrated information communication network user part processor identifier, which is the associated main processor identifier, is separated from the separated call reference number (55), and the unit data indication message is transmitted (56) with the extracted identifier. As a result, the connection of the integrated information communication network user unit connected message received by the signal connection control unit to the associated processor is completed.

At this time, if it is determined that the separated subsystem number is not found, the unit data indication message is transmitted to the associated signal connection user unit (57).

According to the present invention made as described above, by appropriately using the call reference number in the integrated information network user part message, there is no need for a table for identifying the integrated information network user part in the signal connection controller processor, and the associated integrated message is received for the received message. It can be sent directly to the information network user part processor without an intermediate connection. Therefore, it shortens the processing time and maximizes the available resources of the exchange and can be applied to a comprehensive information communication network and applied to non-line related end-to-end information transmission such as information between users, additional service information, and additional call related information.

Claims (3)

In a general information communication network connectionless signaling system, a first step including a call reference number in a first message sent from an originating exchange to a called exchange, and a first message sent from the called exchange to the calling exchange. A second step including its own call reference number, and a unit data exchange unit including the call reference number of the other station in a connectionless end-to-end message in the integrated information communication network user unit of the originating or terminating exchange through the signal connection control unit. A third step of transmitting a call release signal from a comprehensive information communication network user unit of the originating or terminating exchange, and a call release signal from a counter station of a station that has sent a call release signal in the fourth step; Comprehensive information communication network connectionless signaling room comprising a fifth step of completing the call release by receiving How to assign and use call reference numbers in equations. The call reference number of the first step, the second step, and the third step is a lower 24 bits of a total of 40 bits, a call identifier including 6 bits of a main processor identifier, and the consecutive high 14 bits of a counter station signal. A method of allocating and using a call reference number of a total information communication network connectionless signaling method, characterized in that it is a point code, and two consecutive upper bits are reserved bits. The method of claim 1, wherein the third step comprises: a message receiving step of receiving a unit data message from a signal connection control unit; a subsystem number separating step of separating a subsystem number from a unit data message received at the message receiving step; Subsystem Number Separation Step As a result of the integrated information network user portion, the integrated information network user portion processor from the call reference number separating step of separating the call reference number from the received unit message and the call reference number separated in the call reference number separating step. A user part processor identifier separation step of separating an identifier, a first message transmission step of transmitting a unit data indication message to a processor identifier separated in the user unit processor identifier separation step, and a result of the subsystem number separation step Negative or related And a second message transmitting step of transmitting a unit data indication message to a signal connection user unit.