JP3219179B2 - Communication network autonomous management method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network management system or an operation system for a telecommunications network, a mobile communication network, and an information communication network.

[0002]

2. Description of the Related Art FIG. 6 shows an example of a conventional communication network management system. In FIG. 6, reference numeral 13 denotes a representative device P-NE such as a mobile communication exchange. Reference numerals 10, 11, and 12 are slave devices S-NE such as wireless base stations. 14 is a monitoring device P-EMS for the representative device, and 15 is a monitoring device SE for the slave device.
MS, 16 and 17 are terminal devices.

[0003] Reference numerals 101 to 103 denote communication lines for transferring communication information between the subordinate devices 10 to 12 and the representative device 13. Reference numerals 104 to 106 denote network management lines for connecting maintenance monitoring information and connecting the subordinate devices 10 to 12 and the monitoring device 15.

[0006] In FIG. 6, slave devices 10, 11, and 12 connected by a representative device 13 and communication lines 101, 102, and 103 are in a subordinate relationship to each other, and integrally provide a communication service. However, the maintenance monitoring information is managed by monitoring devices 14 and 15 different from the representative device 13 and the subordinate devices 10, 11 and 12, respectively. Therefore, the subordinate devices 10, 11, 1
2 does not directly detect the driving situation.

[0005]

Therefore, in the conventional communication network management system shown in FIG. 6, the representative device 13, the subordinate devices 10, 11, 12 and the communication lines 101, 102,
In order to grasp the operation status of the device 103 and to execute a remedy in the event of a failure or congestion, the representative device monitoring device 1
4 and the monitoring device 15 for the slave device and the terminal devices 16 and 17, respectively.
The restoration measures will be determined with reference to each other via the line 06. However, in the conventional system, it has been difficult to trigger a real-time remedy in response to the operation status of each device. In addition, it was also difficult to distribute detailed measures to network terminals.

In view of the above, an object of the present invention is to provide a communication network autonomous management method capable of detecting an abnormality in the entire communication network on the representative device side and contributing to the remedy of the abnormality. is there.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a representative device, a plurality of subordinate devices under the device, and the representative device and a plurality of subordinate devices are interconnected. In a communication network autonomous management method for a communication network including a communication line connected to a network, a centralized monitoring device provided for network management, and a network management line, an abnormality content in the communication network and a remedy corresponding to the abnormality content are provided. An autonomous management unit having a measure scenario describing a measure is provided in the representative device, and the autonomous management unit detects information necessary for network management from maintenance monitoring information received through a network management line from the subordinate device, From the call processing information between the representative device and the subordinate device, information necessary for network management is detected, and the information necessary for managing the representative device, the subordinate device, and the communication line is represented by the representative device. And, based on the recorded information, detects an abnormality in the representative device, the subordinate device, and the communication line, and when the abnormality is detected, refers to the action scenario table and responds to the content of the abnormality. It is characterized by determining remedies to be taken.

According to a second aspect of the present invention, in addition to the first aspect, the autonomous management unit instructs the determined remedy to the related device among the representative device and the subordinate device, The remedy is executed.

According to a third aspect of the present invention, in addition to the second aspect of the present invention, the autonomous management unit executes the rescue procedure after executing the rescue procedure.
The effect of the rescue measure is determined, and the measure scenario is updated in accordance with the result of the determination.

[0010]

According to the first aspect of the present invention, an autonomous management unit for detecting an abnormality in a subordinate device and a communication line is provided in a representative device, and a remedy corresponding to the abnormality is determined from a previously prepared measure scenario table.

According to a second aspect of the present invention, the abnormality is eliminated by instructing a remedy at a relevant portion in the communication network.

According to the third aspect of the present invention, a suitable remedy is made possible by updating the measure scenario table.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. This embodiment is characterized in that a part of the management function for managing the subordinate device is built in the representative device. This allows the logic of the representative device to grasp in real time the operating status of the self-representative device, the subordinate device under the control, and the communication line connecting the devices, and to detect abnormalities such as device failure, processing congestion, line congestion, and radio wave congestion. It will enable quick remedial action.

FIG. 1 shows the configuration of a communication system to which the present invention is applied. In FIG. 1, reference numerals 21, 22, and 23 are slave devices (wireless base stations and the like). Reference numeral 29 denotes another slave device having a different frequency band (satellite communication, PHS, etc.). Reference numeral 24 denotes a representative device P-NE (such as a mobile communication exchange).

Reference numeral 25 denotes an autonomous management unit (to be described later) built in the representative device. Reference numeral 26 denotes a centralized monitoring device IMS that integrates and manages the entire network. 27 is a terminal device. 28 is another representative device (other mobile communication switch, satellite communication switch, etc.)
It is. 201, 202, and 203 are communication lines that connect the representative device 24 and the subordinate devices 21, 22, and 23. 20
4, 205, and 206 represent the representative device 24 and the subordinate devices 21 and
This is a network management line that carries maintenance and operation information between 2 and 23.

FIG. 4 is an operation status table built in the autonomous management unit 25 according to the present invention. The devices (representative device 24, subordinate devices 21, 22, 23, communication lines 201,
02, 203, etc.), the result of scanning the maintenance monitoring information indicating the operation status is recorded in this operation status table.

The recorded contents are operating conditions (normal, device failure, radio wave congestion, radio wave busy, line congestion, line busy, line fault, device processing congestion, etc.) necessary for network management. The current detection value, the previous detection value, n minutes ago, n hours ago, etc. are recorded retroactively. This makes it possible to select a remedy taking into account the past history of each element constituting the network.

FIG. 2 shows the contents of a measure scenario table built in the autonomous management unit 25. By the processing of the autonomous management unit 25, the devices constituting the network (the representative device 24, the subordinate device 21,
When the autonomous management unit 25 detects an abnormality in the communication lines 201, 202, 203, etc.), the autonomous management unit 25 looks up the measure scenario in FIG. 2 and optimally remedies (scenario number) to remedy the abnormal state. To determine. The determined action pattern is instructed to the representative device 24 by software activation, and the subordinate devices 21 and
Instructions are sent to 22 and 23 through a network management line. The recorded contents of the measure scenario table in FIG. 2 record a measure pattern corresponding to a combination of the representative device operation status and the dependent device operation status. Also, a plurality of measure patterns are recorded so that they can be selected according to the situation. In addition, the number of times of activation and the effect for each measure pattern are also recorded, so that an intellectual measure can be made in consideration of the past abnormal situation, the measure, and its effect.

The autonomous management unit 25 using this measure scenario
3 is shown in FIG. The operation will be described according to the flow of FIG.

The autonomous management unit 25 includes the subordinate devices 21, 22,
23, information required for network management (device failure information of a subordinate device, processing congestion status information, radio wave congestion status information, etc.) is detected from the maintenance monitoring information transmitted through the network management lines 204, 205, and 206. Then, the detection result is recorded in the internal operation status table in the form shown in FIG. On the other hand, the autonomous management unit 25 simultaneously operates the representative device 24 and the subordinate devices 21, 22, 2
3 information required for network management (representative device 2
4 device failure information, processing congestion status information, communication line 20
1, 202, 203 failure status information, usage status information, etc.)
Is detected, and the detection result is also recorded in the operation status table (see FIG. 4) (step S1 → S3). In addition, the autonomous management unit 25 always has the representative device 24 and the subordinate devices 21 and
Monitor abnormalities of the communication lines 2 and 23 and the communication line (step S4). When an abnormality is detected, a rescue measure is determined according to the built-in measure scenario of FIG. 2 (see FIG. 2). Next, the representative device 24 and the dependent devices 21 and 22 needing measures
The remedy for the entire network including one or both of the devices 23, the other representative device 28, the other subordinate device 29, and the bypass line is determined, and an instruction is given to the device to be subjected to the measure (step S5).

Further, after executing the rescue procedure, the autonomous management section executes the processing of steps S1 and S2, determines the rescue effect based on the processing result and the operation status table, and uses the result to optimize the subsequent rescue procedure. The measure scenario in FIG. 2 is updated (step S6). By these operations, the representative device 24 also considers the operation status of each device that is in a subordinate relationship,
Optimum remedy can be triggered.

It should be noted that maintenance monitoring information that does not need to be referred to by the representative device is relayed through the representative device 24 and transferred to the centralized monitoring device (IMS) 26 via the network management line 207 (see FIG. 1). The present embodiment has a function to perform this. In addition, services such as control and service management and business management for the entire mobile communication network are performed by a centralized monitoring device [IM
S].

FIG. 5 shows a specific system configuration of this embodiment. In FIG. 5, reference numerals 61, 62, and 63 denote wireless base stations as slave devices. Reference numeral 64 denotes an exchange for mobile communication as a representative device. 65 is an autonomous management unit, and 66 is a centralized monitoring device (IMS). Reference numeral 67 denotes a terminal device, and 68 denotes another representative device (switching device for satellite communication). 69 is another slave device (P
HS), 70, 71 and 72 are mobile units. 701,7
02, 703 are communication lines, 704, 705, 706,
Reference numeral 707 denotes a network management line. Reference numeral 708 denotes a communication line between the representative device and another representative device, and 709 denotes a bypass line.

The function of the autonomous management unit 65 which operates in cooperation with the call processing program of the mobile communication exchange 64 shown in FIG. 5 will be described below. The autonomous management unit 65 includes the radio base stations 61 and 6
The information necessary for network management is detected from the maintenance monitoring information received through the network management lines 704, 705, and 706 from the networks 2, 63. The mobile communication exchange 64 and the radio base station 6
Information required for network management based on operation information associated with call processing between 1, 62 and 63 (processing congestion, line congestion, line usage, etc.)
Are respectively detected. The detection result is recorded in the operation status table.

By referring to this table periodically, the autonomous management section 65 detects the occurrence of an abnormality.

This time, the processing of the autonomous management unit 65 will be described assuming that the radio base station 61 has detected radio wave congestion from the operation status table. First, the operation status of the mobile communication exchange 64 is detected by referring to the operation status table. It can be seen that the representative device operation status column A4 detected this time in the operation status table of FIG. 4 is normal (01).
Next, the autonomous management unit 65 refers to the operation status column in the recorded contents of the measure scenario in FIG. It can be seen that the scenario number at which the status of the representative device (switching unit for mobile communication) is normal and the dependent device (wireless base station) matches the radio wave congestion is 1. Therefore, the autonomous management unit 65 first instructs the measure of the measure pattern 1 of the scenario number 1. When the call to be treated is an up call, the network management line 70 is transmitted to the radio base station 61.
4, a detour instruction to another frequency band dependent device (base station for satellite communication) is issued. If the call to be taken is a down call, the call processing program in the mobile communication exchange 64 is instructed to detour to another representative device (satellite communication exchange).

Upon receiving these instructions, the following connection operations are performed by the corresponding functions of each device. Mobile device 7
Outgoing calls from 0 (for both land and satellite) are connected via a satellite communication route. In addition, mobile device 70 (for both land and satellite)
Is received from the mobile communication exchange 64 via the satellite communication exchange 68 of the other representative device. The above processing corresponds to the processing of steps S1 to S5 in FIG. If it is detected by the processing of step S5 thereafter that the call cannot be handled even if the rescue procedure according to the measure pattern 1 is performed, the autonomous management unit 65 activates the measure pattern 2 of the measure scenario in FIG. The content of the measure of the measure pattern 2 is an instruction of a detour measure to the other frequency band dependent device (PHS). As a result of the measure, the outgoing call from the mobile device 70 (for both land and PHS) is connected via another slave device 69 (PHS base station).

Mobile unit 70 (for land / PHS)
The incoming call to is connected via a detour route from the representative device 64 to another representative device (PHS exchange).

Next, the processing of the autonomous management unit 65 when the communication line 701 between the radio base station 61 and the mobile communication switch 64 is completely disconnected due to a line failure will be described. In this case, scenario number 3 is included in the contents of the measure scenario in FIG.
Of the measure pattern 1 is activated. As a result, an outgoing call from the mobile device 70 is transmitted from the radio base station 61 via the bypass line 709 to the radio base station 62 → the communication line 702.
→ A connection is made to the target party via the mobile communication switch 64. Incoming calls to the mobile device 70 are connected to the mobile device 70 from the mobile communication exchange 64 via the communication line 702 → the radio base station 62 → the detour line 709 → the radio base station 61.

The following example can be implemented in addition to this embodiment.

1) The function of the autonomous management unit 65 in the representative device 64 can be realized by causing the CPU to execute the processing procedure of FIG.

2) The example of the measure scenario shown in FIG. 2 is an example, and a suitable measure pattern may be appropriately determined according to the specifications of the communication system.

3) When the autonomous management unit 65 detects an abnormality in the communication network, it is needless to say that the detection result and the remedy may be displayed on the display device. Further, in this embodiment, the instruction for executing the rescue procedure is automated, but it is also possible to manually issue the instruction using an input device depending on the form of the communication system.

[0034]

As described above, according to the first aspect of the present invention, an abnormality in a communication network can be detected in real time on the representative device side, and the abnormality can be eliminated.

According to the second aspect of the present invention, the elimination of the abnormality can be automated. This makes it possible to minimize the communication service interruption time and reduce invalid calls.

According to the third aspect of the present invention, the repair content can be changed in response to a time-series change in abnormality.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a system configuration of a communication system to which the present invention is applied.

FIG. 2 is an explanatory diagram showing an example of a measure scenario according to the present invention.

FIG. 3 is a flowchart showing processing contents of an autonomous management unit.

FIG. 4 is an explanatory diagram showing the contents of an operation status table.

FIG. 5 is a block diagram illustrating an example of a specific configuration of the embodiment.

FIG. 6 is a block diagram showing a system configuration of a conventional example.

[Explanation of symbols]

 Reference Signs List 10 Dependent device (S-NE1) 11 Dependent device (S-NE2) 12 Dependent device (S-NEEn) 13 Representative device (P-NE) 14 Monitoring device (P-EMS) 15 Monitoring device (S-EMS) 16 Terminal Device 17 Terminal device 18, 19, 20 Mobile device 101 Communication line (between P-NE and S-NE1) 102 Communication line (between P-NE and S-NE2) 103 Communication line (between P-NE and S-NE) Between NEs 104 Network management line (between P-NE and S-NE1) 105 Network management line (between P-NE and S-NE2) 106 Network management line (between P-NE and S-NEN) 107 networks Management line (P-NE to P-EMS) 21 Slave device (S-NE1) 22 Slave device (S-NE2) 23 Slave device (S-NEn) 24 Representative device (P-NE) 25 Autonomous management unit 26 Centralized Monitoring device (IM S) 27 Terminal device 28 Other representative device (AP-NE) 29 Other dependent device (AS-NE) 30, 31, 32 Mobile device 201 Communication line (between P-NE and S-NE1) 202 Communication line (P −NE to S-NE2) 203 Communication line (between P-NE and S-NEn) 204 Network management line (between P-NE and S-NE1) 205 Network management line (P-NE to S-NE2) 206) Network management line (between P-NE and S-NEn) 207 Network management line (between P-NE and IMS) 208 Communication line (between P-NE and AP-NE) 61 Slave device (S- NE1) 62 Slave device (S-NE2) 63 Slave device (S-NEn) 64 Representative device (P-NE) 65 Autonomous management unit 66 Centralized monitoring device (IMS) 67 Terminal device 68 Other representative device (AP-NE) 69 Other slave device (AS- E) 70, 71, 72 Mobile device 701 Communication line (between P-NE and S-NE1) 702 Communication line (between P-NE and S-NE2) 703 Communication line (between P-NE and S-NEN) ) 704 Network management line (between P-NE and S-NE1) 705 Network management line (between P-NE and S-NE2) 706 Network management line (between P-NE and S-NEN) 707 Network management Line (between P-NE and IMS) 708 Communication line (between P-NE and AP-NE) 709 Detour line (between S-NE1 and S-NE2)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 3/00 H04M 3/22-3/36

Claims (3)

(57) [Claims] 1. A representative device, a plurality of subordinate devices under the control of the representative device, a communication line interconnecting the representative device and the plurality of subordinate devices, a centralized monitoring device provided for network management, and a network management line. A communication network autonomous management method for a communication network, wherein an autonomous management section having an action content describing an abnormal content in the communication network and a remedy corresponding to the abnormal content is provided in the representative device; Detecting information necessary for network management from maintenance monitoring information received from the slave device through a network management line, and detecting information necessary for network management from call processing information between the representative device and the slave device. And information necessary for managing the representative device, the subordinate device, and the communication line is recorded in the representative device, and based on the recorded information, the representative device, the subordinate device, A communication network autonomous management method comprising: detecting an abnormality of a communication line; and, when detecting the abnormality, referring to the measure scenario table to determine a remedy corresponding to the content of the abnormality. 2. The autonomous management unit according to claim 1, wherein the determined rescue procedure is instructed to the related apparatus in the representative apparatus and the subordinate apparatus to execute the rescue procedure. Communication network autonomous management method. 3. The autonomous management unit according to claim 2, wherein after executing the rescue procedure, the autonomous management unit determines an effect of the rescue procedure and updates the measure scenario in accordance with a result of the determination. Communication network autonomous management method.