JP3060727B2 - NO. For remote maintenance 7 Operation and maintenance management system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a configuration system of a No. 7 operation and maintenance system for remote maintenance when remote control is performed by using a No. 7 signaling system from various switching system maintenance centers.

[0002]

2. Description of the Related Art In the conventional maintenance of various exchange systems, a maintenance person and a maintenance space are arranged at each place where various exchange systems are installed, and the maintenance person generally performs maintenance of only the exchange system. there were.

However, in this maintenance mode, a maintenance person and a maintenance space are required for each exchange system, and efficient arrangement of the maintenance person and the maintenance space and unified maintenance of various exchange systems are impossible. .

Therefore, a maintenance form has been devised in which a maintenance person and a maintenance space for maintaining various exchange systems are integrated into one place, and various exchange systems are centrally and efficiently maintained by various exchange system maintenance centers.

[0005] As a remote maintenance method for various switching systems in the early days, a general form was one in which various switching system maintenance centers and various switching systems were connected by a one-to-many modem line to perform remote maintenance.

[0006]

However, in this remote maintenance mode, the number of modem lines increases each time various switching systems increase, and various switching systems have modem control hardware and software only for remote maintenance. There was a problem such as having to do.

Therefore, as a form of remote control using the No. 7 signal system commonly provided in various switching systems, an operation and maintenance management function unit (Operations, Operation and Management) recommended by the CCITT (International Telegraph and Telephone Consultative Committee) has been proposed. Maintenance an
d Administration Part; OMAP) (CCITT Recommendation Q.7)
95 Section 4) was devised.

[0008] The OMAP function section includes transmission and reception of exchange maintenance information and MTP (message transfer section; Message Trap).
nsfer Part; ccitt recommendation Q. 701), SCCP (Signaling Connection Control Part; CCIT)
T Recommendation Q. 711) is intended for a routing validation test.

[0009] However, although the OMAP function section aims at eliminating the above-mentioned problems, it cannot be used as a remote maintenance system using the No. 7 signal system for solving the above-mentioned problems. The cause is as follows. OMAP
The functional unit employs a communication method based on a communication mode that presupposes that there is always a response from a communication partner to a communication request (communication with each user application of a communication partner device) from a user application located above the functional unit. But O
When providing a remote maintenance operation function to a large number of applications, the MAP function unit cannot manage which application has issued what kind of communication request. This means
When the OMAP function unit receives the response, it cannot determine to which application the response is to be passed.

The present invention aims at overcoming the disadvantages mentioned above. In other words, the OMAP function requires a method for reliably transferring a response to a communication request from a user application to a communication request destination application. If this method can be provided, a remote maintenance method using the No. 7 signaling method becomes possible.

[0010]

According to the present invention, in a remote maintenance system in which remote control is performed by using a No. 7 signal system, a plurality of user applications and an operation / maintenance unit (provided with an operation / maintenance function for the applications) are provided. OMAP)
And a transaction function application unit (TCA) connected to the OMAP and connected to the communication partner device via the transmission path.
P) and communication processing hierarchically connected to each other,
The AP communicates with the TCAP with an identifier dialog I
D and the TCAP manage an identifier component ID for a dialogue, assign a dialog ID when a communication request is made from the user application, and assign the dialog ID to the remote application including the remote maintenance information message (mainly, Operation code described)
To the communication partner, a transmission request is made to the transmission unit of the OMAP function unit. In the transmission unit, each component ID is assigned to each remote maintenance information message in the communication request, and the transmission side T
A transmission request is sent to the CAP, a message is transmitted to the communication partner device, and the receiving TCAP that has received the message transmits the message to the receiving OMAP, and the OMAP uses the TCAP operation code in the received message. The TCAP that determines the user application that receives the received message and receives the message (processing result message) from the communication partner device is:
Transmitting the message to the OMAP, the OMAP determines a user application that receives the received message from the component ID / dialog ID in the received message, delivers the message, releases the processed component ID / dialog ID, and No. 7 operation and maintenance management system for remote maintenance characterized by converting the format of fault information received from a remote location and distributing it to user applications.

[0011]

Next, the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing a relationship between a switching device 1 and a maintenance center remote device 2 connected by using a No. 7 common channel signaling system according to an embodiment of the present invention.

In FIG. 1, an instruction (telegram) for an operation to be executed on the exchange device 1 is made by a remote maintenance command input from an operator console 2-8 of the maintenance center remote device 2. In response to the command processing, each user application unit 2 of the maintenance center remote device 2
-1, 2-2, and 2-3 are activated, and the OMAP function unit 2-
4, via the TCAP 2-5, the SCCP 2-6, and the MTP protocol 2-7, to the switching device 1 via the transmission path 3, which is a No. 7 signal link.

In the switching device 1, MTP1-7, SCCP
1-6, OMAP via TCAP protocol 1-5
The operation designated by the maintenance center remote device 2 is received by the function unit 1-4, and each user application unit 1-1, 1- 1 to be executed for each operation is received.
2, 1-3 are started.

Transmission of information necessary for maintenance, such as fault information generated in the switching equipment 1 to the maintenance center remote equipment 2 is performed in the same manner as the method of transferring the information from the maintenance center remote equipment 2 to the switching equipment 1. Is transferred from the switching device 1 to the maintenance center remote device 2.

FIG. 2 is a block diagram of the OMAP function unit 1 shown in FIG.
It is a functional block diagram of 4,2-4. In FIG.
TCAP from user application section n-1, 2, 3
Sends a message transfer request to the transmission processing unit n of the OMAP function unit.
-4-1, the dialog ID / component ID management unit n-4-2 confirms that the dialog ID and component ID have been allocated or has been allocated, and then the primitive (TCAP) of the TCAP unit n-5. , And sends a transmission request to the TCAP unit. Also, a response to the previously executed operation execution request is received from the TCAP unit n-5 by the reception processing unit n-4-3 of the OMAP function unit, and if the call is terminated, the dialog ID / component ID After releasing the assigned dialog ID and component ID in the management unit n-4-2, the corresponding user application units n-1, 2, and 3 are notified. Further, when the operation execution request is received from the TCAP unit n-5 by the reception processing unit n-4-3 of the OMAP function unit, the dialog I
After recording the dialog ID assignment and the reception component ID in the D / component ID management unit n-4-2, the user application units n-1, 2, and 3 corresponding to each operation are started.

FIG. 3 shows the OMAP in FIG. 1 and FIG.
It is a flowchart explaining the dialog ID and component ID management function of the function unit.

In FIG. 3, description will be given below by taking as an example a case where remote maintenance information is transferred from the maintenance center remote unit 2 to the switching unit 1 in FIGS.

(1) The switching device 1 is used by the user application units 2-1, 2-2, 2-3 of the maintenance center remote device 2.
When the transfer information of the telemaintenance information message is generated, the user application unit issues a dialog ID allocation request to the transmission processing unit n-4-1 of the OMAP function unit 2-4.

(2) Upon receiving the dialog ID assignment request, the transmission processing unit n-4-1 of the OMAP function unit 2-4 requests the dialog ID / component ID management unit n-4-2 to secure a dialog ID. And the dialog ID
/ Component ID management part is unused dialog ID
(In use).

(3) OMAP with dialog ID secured
The dialog ID / component ID management unit n-4-2 of the function unit 2-4 returns the dialog ID value to the requesting user application unit via the transmission processing unit n-4-1.

(4) The requesting user application unit that has returned the dialog ID value sends a request for transmitting a remote maintenance information message including the corresponding dialog ID to the OMAP function unit 2-
4 to the transmission processing unit n-4-1.

(5) The transmitting unit n-4-1 of the OMAP function unit 2-4 receiving the remote maintenance information makes a request for securing the component ID to the dialog ID / component ID managing unit n-4-2. The dialog ID / component ID management unit n-4-2 secures an unused component ID in the corresponding dialog ID (in use).

(6) OM with secured component ID
Dialog ID / Component I of AP function unit 2-4
The D management unit n-4-2 returns the component ID value to the transmission requesting user application unit via the transmission processing unit n-4-1.

(7) Thereafter, the transmission processing unit n-4-1 of the OMAP function unit 2-4 converts the remote maintenance information message including the corresponding dialog ID and component ID into a TCAP primitive, and converts the message into a TCAP primitive. Notify to

(8) Upon receiving the remote maintenance information message transmission request from the user application unit, the transmission processing unit n-4-1 of the OMAP function unit 2-4 converts the request into a TCAP primitive and sends it to the TCAP unit 2-5. A call request is made to it.

(9) TCAP unit 2-5 receiving call request
Sends the remote maintenance information message received in (7)
The message is converted to a P message, and the TCAP unit 1
Send to -5.

(10) TCAP section 1-5 on switching apparatus 1 side
Receives the TCAP message including the telemaintenance information message, upon receiving the TCAP message, the reception processing unit n-4-3 of the OMAP function unit 1-4.
Of the incoming call.

(11) The receiving unit n-4-3 of the OMAP function unit 1-4 having received the incoming call notification requests the dialog ID / component ID managing unit n-4-2 to secure the receiving side dialog ID. The dialog ID / component ID management unit n-4-2 secures an unused dialog ID (in use) and returns the corresponding dialog ID value to the reception processing unit n-4-3.

(12) Thereafter, the TCAP unit 1-5 notifies the remote processing information message to the reception processing unit of the OMAP function unit.

(13) OMA receiving remote maintenance information message
The reception processing unit n-4-3 of the P function unit 1-4 notifies the dialog ID / component ID management unit n-4-2 of the reception component ID value, and the dialog ID / component ID management unit n-4. -2 is the receiving component I corresponding to the dialog ID secured in the above (11).
Secure D (in use). Also, the corresponding dialog ID
And the remote maintenance information message including the component ID,
After selecting the user applications 1-1, 2, and 3 to be notified by the operation code, the corresponding user applications are notified.

(14) Upon receiving the remote maintenance information message, the user application 1-1, 2, 3 (any one) executes a process according to the content of the remote maintenance information message, that is, executes the command, and is notified in (13) above. The execution result information message transfer request including the dialog ID is notified to the transmission processing unit n-4-1 of the OMAP function unit 1-4.

(15) Upon receiving the execution result information message transfer request, the transmission processing unit n-4-1 of the OMAP function unit 1-4 converts the execution result information message into a TCAP primitive, and
When the request is made to the AP unit 1-5, and the processing of all components corresponding to the corresponding dialog ID is completed, a request to disconnect the call is made to the TCAP unit 1-5 using the TCAP primitive (OMAP function unit 1- No. 4 requests the TCAP unit 1-5 for a call continuation request when the component processing for the corresponding dialog still remains.) Further, a request for releasing the corresponding dialog ID and component ID is made to the dialog ID / component ID management function unit n-4-2.
/ Component ID management unit n-4-2 releases them (unused).

(16) Upon receiving the execution result information message and the call disconnection request, the TCAP unit 1-5 converts the execution result information message into a TCAP message and returns it to the maintenance center remote device 2.

(17) TCAP of maintenance center remote unit 2
Upon receiving the TCAP message including the execution result information telegram, the unit 2-5 receives the TCAP message and executes the reception processing unit n of the OMAP function unit 2-4.
-4-3 is notified of a call end and an execution result information message.

(18) The reception processing unit n-4 of the OMAP function unit 2-4 that has received the call termination notification and the execution result information notification.
No. -3 notifies the execution result information message to the user application section corresponding to the dialog ID and component ID secured in (2) and (5). In addition, the corresponding component ID is released, and when all the component IDs corresponding to the relevant dialog ID are released, the dialog ID is also released.

(19) In the OMAP function units 2-4 and 1-4 of the maintenance center remote unit 2 or the switching unit 1, the user application unit changes the dialog ID or component ID that is not managed (unused) by the OMAP function unit. When an execution result information transfer request is received, an error is returned to the corresponding user application unit.

FIG. 4 shows an example of a table configuration for managing the dialog ID and the component ID in FIG.

The dialog ID empty / occupied management table shown in FIG. 4A is stored in the remote maintenance information message transmitting side and the receiving side.
The dialog ID / component ID management unit of the MAP function unit manages the status of securing and releasing the dialog ID.

The transmission component ID empty / busy management table shown in FIG. 4B is the OMA on the remote maintenance information message transmission side.
The dialog ID / component ID management unit of the P function unit manages the reservation and release state of unused component IDs.

The receiving component ID empty / busy management table shown in FIG. 4C is the OMA on the remote maintenance information message receiving side.
The dialog ID / component ID management unit of the P function unit manages the status of securing and releasing the reception component ID.

FIG. 5 is a diagram showing the relationship between the dialog ID and the transmission / reception component ID in FIG.

In FIG. 5, 16 transmission component IDs can be managed so that 16 different operations can be requested for one dialog ID.
The example shows that 256 reception component IDs can be managed.

FIG. 6 shows an outline of a process for causing the maintenance center remote unit 2 to execute a certain process in the exchange unit 1 in the configuration of FIG.

In FIG. 6, the maintenance center remote unit 2 determines the processing to be executed on the switching unit 1 side, and
It is transferred to the exchange in the form of an operation code on the protocol. On the switching device side, the user application corresponding to the operation code determines the processing based on the transmitted operation code and executes the processing.

FIG. 7 is an explanatory diagram of the remote control information distribution function according to the present invention. In FIG. 7, a TCAP operation code (for example, 1 to 10) is previously stored in the user application unit 1-1.
-2 has a TCAP operation code (for example, 11
To 20) in the user application section 1-3.
It is assumed that an AP operation code (for example, 21 to 30) is assigned.

On the transmitting side, for example, the user application unit 2-2 specifies and transmits a TCAP operation code corresponding to the user application unit 1-1 to which the remote control information is to be transferred, so that the OMAP function unit 1-4 receives the remote control information. The user application unit 1-1 that finally receives the remote maintenance information from the TCAP operation code is identified and the remote control information is notified. The control result information message is also notified from the user application unit 1-1 to the user application unit 2-2 in the same manner.

FIG. 8 is an explanatory diagram of the function of receiving and distributing a fault notification from the TCAP function unit. Explaining according to the above example, the OMAP function unit 2-4 transmits the failure notification information in the TCAP primitive format received from the TCAP function unit 2-5,
FIG. 9 is a diagram illustrating an example of format conversion and notification of a failure information message to a user application unit 2-2 based on a dialog ID and a component ID.

[0048]

As described above, according to the present invention, C
By adding a dialog ID management function or the like to the OMAP function section recommended by the CITT, remote maintenance of various systems in addition to the switching system by the No. 7 signaling system from the maintenance center becomes possible.

[Brief description of the drawings]

FIG. 1 is a device block diagram of a remote maintenance function in a switching device and a maintenance center remote device.

FIG. 2 is a hardware functional block diagram of an OMAP function unit.

FIG. 3A is a functional flowchart for explaining a dialog ID and component ID management function in the present invention.

FIG. 3B is a functional flowchart for explaining a dialog ID and component ID management function according to the present invention.

FIG. 4 shows a configuration example of a dialog ID and component ID management table.

FIG. 5 is a relationship diagram between a dialog ID and a component ID.

FIG. 6 is a schematic diagram of processing between a remote maintenance center and a switching facility.

FIG. 7 is an explanatory diagram of a remote control information distribution function according to the present invention.

FIG. 8 is an explanatory diagram of a failure notification distribution function from a TCAP function unit.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 switching device 2 maintenance center remote device 3 transmission line 1-1, 1-2, 1-3 switching device-side OMAP user application unit 1-4 switching device-side OMAP function unit 1-5 switching device-side TCAP unit 1-6 switching Equipment side SCCP unit 1-7 Switching unit side MTP unit 1-8 Maintenance operation function unit 1-9 Exchange function unit 2-1 2-2, 2-3 Maintenance center remote unit OMA
P user application unit 2-4 OMAP function unit at the maintenance center remote unit 2-5 TCAP unit at the maintenance center remote unit 2-6 SCCP unit at the maintenance center remote unit 2-7 MTP unit at the maintenance center remote unit 2-8 Maintenance operation Function unit n-4-1 Transmission processing unit (n = 1, 2) n-4-2 Dialog ID / component ID management unit (n = 1, 2) n-4-3 Reception processing unit (n = 1, 2) )

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-51795 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04M 3/00 H04M 3/16-3 / 20 H04M 3/38-3/40 H04M 7/00-7/16 H04Q 3/54-3/56

Claims (1)

(57) [Claims] 1. A variety of exchange systems are provided by a maintenance center
o. In a remote maintenance system for remote control using a seven-signal system, an operation and maintenance management unit (OMAP) connected to a plurality of user applications, and a transaction function connected to the OMAP and connected to the switching device via a transmission line. An application part (TCAP), wherein the OMAP manages an identifier dialog ID for an interaction with the TCAP and an identifier component ID for an interaction between the TCAP, and assigns a dialog ID when a communication request is made from a user application. When transmitting one or more messages, a component ID is assigned to each message, and a transmission request is sent to the transaction function application unit in order to transmit the message managed by the two IDs to a communication partner device. The transaction function application unit on the receiving side The OMAP function unit determines a user application to deliver the received message by the TCAP operation code, and the transmitting-side transaction function application unit that has received the message that is a response to the transmitted message from the communication partner device transmits the message. The message is delivered to the side OMAP function part, and the OMAP function part receives the component ID / dialog I
D. A remote maintenance No. 7 operation and maintenance management method, which determines a user application to which a response message is to be delivered by D, and converts the format of fault information received from a remote location and distributes it to the user application.