JPH08331633A - Abnormality detecting system for mobile communication system - Google Patents

Abstract

PURPOSE: To shorten the abnormal time of resources by speedily detecting abnormality and to effectively utilize the resources by providing a judging means for judging whether the resources are normally secured/released at the time of call connection/disconnection or not and a means for matching real line information with circuit information. CONSTITUTION: When normal processing A is started, a resource managing part 211 secures or releases the resources to be used for connecting or disconnecting a call. When using a line or when stopping using the line, a call control part 212 performs the control of call connection or disconnection. It is judged whether the secure/release of resources can be normally processed or not and when the resources can not be secured/released, the mismatch (abnormality) of a real circuit state and the line information provided for equipment is detected. When the abnormality is detected, the line state is matched with the line information, and the resources are recovered so as to be used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anomaly detection method in a mobile communication system, and more particularly to an anomaly detection method in a mobile communication system through line control resource management.

[0002]

2. Description of the Related Art FIG. 3 is a block diagram showing an example of an abnormality detection method in a general mobile communication system.

Referring to FIG. 3, the mobile communication system of this example is composed of mobile stations 11, ..., 1n, a base station 2, and a digital network 3 connected to the base station 2 by a wired line 5. The stations 11, ..., 1n are connected to the wireless line 41,
, 4n are connected to the base station 2.

The base station 2 comprises a control unit 21 and a radio unit 22. The control unit 21 manages the wired lines 5, the radio lines 41, ... And a call control unit 212 that performs call control by disconnecting the call. Further, the resource management unit 211 manages actual lines and line information corresponding to the lines, and this resource management is an important function.

Next, FIGS. 4A and 4B are flow charts showing the procedure of the conventional normal processing and abnormal processing in FIG.

In the case of performing wired and wireless line control, when a normal process A for controlling line connection and line disconnection and a line and resources including line information used in the process cause some unexpected error. There is an abnormality process B for detecting and recovering from this abnormality.

The normal process A is performed according to the procedure shown in FIG. That is, when the normal process A is started (step S101), the resource management unit 211 secures or releases the resources used at the time of call connection or call disconnection (S10).
2). Then, when using the line or ending the use of the line, the call control unit 212 performs call control for call connection or call disconnection (S103).

Further, the abnormality processing B is performed in the procedure shown in FIG. 4 (b). That is, when the abnormal process B is activated (S
201), the abnormal process B is activated at a long fixed period (timer timeout) so as not to become the processing load of the normal process A (S202), and the physical line state as hardware and the line information managed by software are When the state mismatch is detected (S203), the line state and the line information are made to match and the resource is made available to be restored (S203).
204).

Next, FIG. 5 is a time chart showing in time from the abnormality processing to the abnormality recovery in this conventional example.

Referring to FIG. 5, the anomaly process B is only operating at a constant time interval T1, and even if a call connection or a call disconnection occurs during an anomaly, another resource does not detect an anomaly. Since this is not done, the time t2 until the next abnormal processing B is activated becomes longer than the time t1 from the occurrence of an abnormality to the recovery of the abnormality in FIG. 2 described later.

[0011]

In the conventional abnormality detection method in the mobile communication system, the abnormality process B is activated in a constant cycle and operates in a long period so as not to overload the normal process A. There was a problem that resources could not be used for a long period until it was detected and restored.

The object of the present invention is to realize the real-time detection by performing the conventional abnormality detection even in the normal processing A, shorten the unusable time of the abnormal test, and respond to the demand for new resources. An object of the present invention is to provide an abnormality detection method in a mobile communication system that shortens the refusal time.

[0013]

According to the present invention, it is possible to determine whether or not resources are normally secured / released when resources are secured and released during call connection and call disconnection in a mobile communication system. Judging means for judging, detecting means for detecting a mismatch between the actual line status and the line information held by the device, and matching the line status with the line information when the detecting means detects the mismatch. An anomaly detection method in a mobile communication system is provided, which is provided with a matching means.

Further, the control unit provided in the base station secures or releases the resources used when the call is connected or disconnected when the normal processing is started, and when the use of the line is started or terminated. At times, call control is performed to determine whether or not the resources can be secured / released normally. When the resources cannot be secured / released, the actual line state and line information held by the device When the non-coincidence is detected, a process for matching the actual line state with the line information held by the device is performed, thereby providing an abnormality detection method in a mobile communication system.

[0015]

Next, the present invention will be described with reference to the drawings.

FIGS. 1A and 1B are flowcharts showing the procedure of normal processing and abnormal processing in one embodiment of the present invention.

In this embodiment, the abnormal process B operates in a constant cycle during the time period when the normal process A does not operate.

The normal process A is performed in the procedure shown in FIG. That is, when the normal process A is started (step S101), the resource management unit 211 secures or releases the resources used at the time of call connection or call disconnection (S10).
2). Then, when using the line or ending the use of the line, the call control unit 212 performs call control for call connection or call disconnection (S103).

Thereafter, it is judged whether or not the resources can be secured / released normally (S104). If the resources cannot be secured / released (No in S104), the state of the hardware and the software is checked. A non-coincidence, that is, a non-coincidence (abnormal state) between the actual line state and the line information held by the device is detected (S105).

Then, when an abnormality is detected, a process for matching the actual line state with the line information held by the device is performed to recover (S106).

The abnormality processing B shown in FIG. 1B is shown in FIG.
The procedure is the same as the conventional abnormality processing B shown in (b). That is, when the abnormal process B is activated (S201), the abnormal process B is activated at a long fixed period (timer timeout) so as not to impose a processing load on the normal process A (S20).
2) When it is detected that the physical line state of the hardware and the line information managed by the software do not match (S203), the line state and the line information are matched to restore the resource as usable (S204). ).

Next, FIG. 2 is a time chart showing in time from the abnormality processing to the abnormality recovery in this embodiment.

Referring to FIG. 2, the abnormal process B operates at a fixed time interval T1, while the normal process A operates when there is a call connection or a call disconnection, and the normal process A is required to secure / release resources. A procedure for determining whether or not it is normal (S103),
Since the abnormality detection procedure (S105) and the recovery procedure (S106) are provided, the abnormality is recovered at time t1 from the occurrence of the abnormality.

[0024]

As described above, according to the present invention, it is determined whether or not resources are secured / released normally when resources are secured and released at the time of call connection and call disconnection in the mobile communication system. Judging means, detecting means for detecting a mismatch between the actual line status and the line information held by the device, and the actual line status and the line information held by the device when the detecting means detects the mismatch. By providing the matching means for matching and the abnormality detection procedure in the normal process, the abnormality can be detected early even at the activation timing due to the call connection or the call disconnection, so that the abnormality time of the resource is shortened. be able to. Therefore, there is an effect that resources can be effectively used.

[Brief description of drawings]

1A and 1B are flowcharts showing a procedure of normal processing and abnormal processing in an embodiment of the present invention.

FIG. 2 is a time chart showing temporally from abnormal processing to abnormal recovery in the present embodiment.

FIG. 3 is a block diagram showing an example of an abnormality detection method in a general mobile communication system.

4 (a) and 4 (b) are flowcharts showing a procedure of the conventional normal processing and abnormal processing in FIG.

FIG. 5 is a time chart showing temporally from abnormal processing to abnormal recovery in the conventional example.

[Explanation of symbols]

 11, ..., 1n Mobile station 2 Base station 3 Digital network 41, ..., 4n Wireless line 5 Wired line 21 Control unit 22 Wireless unit 211 Resource management unit 212 Call control unit

Claims (2)

[Claims] 1. A determination means for determining whether or not the resources are secured / released normally when the resources are secured and released during call connection and call disconnection in a mobile communication system, and an actual line state. And a matching unit for matching the line status with the line information when the detecting unit detects the mismatch. Anomaly detection method for mobile communication systems. 2. The control unit provided in the base station secures or releases the resources used when the call is connected or disconnected when normal processing is started, and starts or ends the use of the line. Occasionally, call control is performed to determine whether the resource reservation / release can be processed normally, and the resource reservation / release
When a mismatch between the actual line state and the line information held by the device is detected when the release is not possible, a process of matching the actual line state with the line information held by the device is performed. The abnormality detection method in the mobile communication system according to claim 1.