JPH01216632A - Fault detection method for mca base station - Google Patents

Abstract

PURPOSE:To detect a fault of an MCA base station without disturbing a call of a mobile station during operation by using a monitor so as to always monitor the operating state of a C-channel and raising a call from a pseudo mobile station in the non-operation of the C-ch. CONSTITUTION:A monitor 1 monitors the state of traffic of the C-ch9 by a pseudo mobile station 8. When the C-ch9 is not used for a prescribed time, the monitor 1 makes a call from the pseudo mobile station 8. In this case, when a transmitter-receiver 6a1 is operated normally, a call signal is received by the transmitter-receiver 6a1 of the C-ch via the C-ch9 and reaches to the line controller 5. Then the line controller 5 seeks an idle ch and allows the transmitter-receiver 6a1 to send a ch designation signal of the idle ch to be sough. If the ch designation signal is not received after the call by the pseudo mobile station 8, the monitor 1 judges it to be fault by the transmitter-receiver 6a1 and sends the information of fault occurrence of the transmission-receiver 6a1 of the C-ch9 to the line controller via a MODEM 2 and a private line 3 and a MODEM 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a failure detection method for a multi-channel access (hereinafter referred to as MCA) base station.

[Conventional technology]

Figure 1 is a diagram showing the MCA communication system conventionally used for boat fishing, where 1 is a monitoring device, 2 is a model, and 3
4 is a dedicated line, 4 is a communication channel (hereinafter referred to as 5-ah), and 5 is a line control device.

6a1. ...6ao is the transmitting/receiving device for each channel, 7
a.

7b is a mobile station, 8 is a pseudo mobile station, and 9 is a control channel (hereinafter referred to as C-ah).

Next, the operation will be explained. When a call is made from the mobile station 7a, the calling signal is received by the receiving device 6a1 of C-ah9 via C-ah9, and reaches the line control device 5.0 The line control device 5 searches for an empty channel and uses the found empty channel. ah designation signal is transmitted via C-ah9. Mobile stations 7a and 7b are ch
When receiving the designated signal, the mobile stations 7a and 7b adjust their own transmitting and receiving frequencies to the designated ah frequency, and thereafter, the mobile stations 7a and 7b transmit 5-
You can make calls via ah4.

On the other hand, the monitoring device 1 includes a line control device 5 and models 2 and 2.
．． It is connected via a dedicated line 3, and the pseudo mobile station 8 periodically makes calls to the transmitting/receiving device 16at.
~6an fault detection and line control device!
The operational status of 15 systems can be constantly monitored and controlled.

[Problem to be solved by the invention]

Since the conventional failure detection method of the MCA base station is configured as described above, even when the call volume of C-ah9 is high, calls are made periodically from the pseudo mobile station 8, so that other mobile stations 7
There were problems such as interfering with calls made by A and 7B.

This invention was made to solve the above-mentioned problems, and it can be used without interfering with the mobile station in operation.
The object of the present invention is to obtain a failure detection method for an MCA base station that can detect failures in transmitting/receiving devices.

[Means to solve the problem]

The MCA base station failure detection method according to the present invention constantly monitors the usage status of C-ch using a monitoring device, and also makes a call from a pseudo mobile station when C-ah is not in use. This is designed to detect station failures.

(Operation) The method for detecting a failure in an MCA base station according to the present invention is as follows:
The usage status of C-h is constantly monitored, and as a result, C-
If the channel is unused, a call is made from the pseudo mobile station and the MC
In order to detect a failure of the A base station, periodic calls from the pseudo mobile station are eliminated, and therefore, interference with calls from the active mobile station is eliminated.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In this case, the configuration of the MCA communication system in this embodiment is basically the same as that in FIG. 1 used to explain the conventional system. Therefore, the same drawings will be used and the explanation thereof will be omitted, and the features of the present invention will be explained in the following explanation of the operation.

Next, the operation will be explained. The monitoring device 1 monitors the call volume state of the C-ah 9 using the pseudo mobile station 8. When the C-ch 9 is not used for a certain period of time, the monitoring device 1 makes a call from the pseudo mobile station 8. If the transmitting/receiving device 6a1 is operating normally at this time, the calling signal is C-ah
9 is received by the C-ch transmission/reception bag [6a, and reaches the line control device 5. And the line control device 5 is an empty channel
, and transmits the channel designation signal of the found vacant ah from the transmitting/receiving device 6ai via the C-ah9. When the pseudo mobile station 8 receives this signal, the monitoring device 1 detects C-a.
It is known that the transmitting/receiving device 6a□ of h9 is operating normally. If the channel designation signal is not received after the pseudo mobile station 8 makes a call, the monitoring device 1 determines that the transmitting/receiving device 6a1 is at fault, and sends C- to the 1-line control device 5 via the model 2, dedicated line 3, and model 2. Sends information on the occurrence of a failure in the transmitting/receiving device 6a of ah9.

In addition, in the above embodiment, the monitoring device 1 has a transmitting/receiving bag @6a,
When a failure is detected in the C-ah transmitter/receiver @6a1, the dedicated line 3, model 2.2 is used to send information on the occurrence of a failure in the C-ah transceiver @6a1 to the line controller 5. C-ah transmitting/receiving device i! Due to the occurrence of a failure in 6a, information may be sent to request that another transmitting/receiving device take over, and in response to this, the line control device 5 may allocate 0-ch9 to the other transmitting/receiving device.

〔Effect of the invention〕

As described above, according to the present invention, failure detection of the transmitting/receiving device is performed when the C-ah is not in use, so the MCA
This has the effect of detecting base station failures.

[Brief explanation of the drawing]

Figure 1 shows MCA in one embodiment of the present invention and in a conventional example.
FIG. 1 is a configuration diagram of a communication method system. 1 is a monitoring device, 5 is a line control device, 6a,...
6an is a transmitting/receiving device, 7a and 7b are mobile stations, 8 is a pseudo mobile station, and 9 is a control channel (C-ch). Patent applicant Mitsubishi Electric Corporation

Claims (1)

[Claims] A monitoring device comprising a monitoring means for constantly monitoring the usage status of a control channel, and a calling means for causing a pseudo mobile station to make a call when the monitoring means detects that the control channel is not in use. A failure detection method for an MCA base station, wherein a call is made from the pseudo mobile station only when the control channel is not used, and failure of the MCA base station is detected based on the call.