JPH09284834A - Radio base station automatic diagnostic method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent occurrence of the fault of a radio base station and to avoid state mis-matching with an exchange by allowing the exchange to diagnose the radio base station, providing the output of the result and conducting countermeasure control over the radio base station on the occurrence of a fault automatically or by the operation of the, maintenance personnel thereby supervising the radio base station at all times. SOLUTION: An exchange 101 makes communication over all base stations 102 contained therein to diagnose the state of the base stations 102. The diagnosis of the radio base stations 102 is executed by manual operation to the base stations designated as a single or a group by a maintenance terminal of the exchange 101. The diagnosis of the radio base stations 102 is executed automatically by scheduling the start and stop date and time of diagnosis and the range of the diagnosed base stations in the exchange 101 in the unit of line concentration of the radio base stations 102. The result of diagnosis is stored in the exchange 101 and edited by each state or by each area by the operation from the maintenance terminal equipment and outputted on an external medium such as display onto a screen and a print out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of automatically diagnosing a radio base station.

[0002]

2. Description of the Related Art Conventional diagnostic methods for radio base stations have been controlled by an external dedicated system for maintaining the radio base stations. With this method, the information between the exchange and the radio base station cannot be monitored, and it is difficult for the external maintenance device to monitor the wireless section and the interface status between the exchange and the radio base station in real time.

[0003]

SUMMARY OF THE INVENTION According to the present invention, it is possible to monitor a state mismatch between a radio base station and the exchange by the exchange performing a maintenance operation or automatically diagnosing the radio base station and outputting the result. . Further, by immediately performing the recovery procedure for the radio base station having the diagnosis result NG, the failure can be prevented. It is another object of the present invention to realize a mobile communication system with excellent serviceability, such as by performing real-time monitoring of the status of a base station in which an abnormality has occurred from the exchange side so that faults can be quickly identified and handled.

[0004]

In order to achieve the above object, a radio base station monitors an internal state or a state of a wireless / wired interface section, and transmits those states to the exchange side in real time under the control of the exchange. The exchange has the function of performing manual / automatic diagnosis control to the wireless base station, and editing, outputting, and displaying the results.

In order to achieve the above object, the exchange carries out a diagnosis for a radio base station by a maintenance person operation or scheduling, and collects the state of the radio base station. Based on the result of collecting the states, the result output and the response control to the wireless base station in case of an abnormality are performed automatically or by a maintenance person.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a basic configuration of a mobile communication system. 101 is a mobile switching system, 102 is a wireless base station, 103 is a concentrator, 104 is a communication line, 105 is a portable terminal, 106 is a wireless base station maintenance management system, 107
Represents an exchange maintenance system. FIG. 2 shows a block diagram of the exchange. 201 is a subscriber line control unit, 202 is a central processing unit, 203 is software, 204 is a program unit in software, 205 is an OS unit in software, 2
06 is a memory unit in the software, 207 is a storage medium,
Reference numeral 208 represents an external device interface unit. FIG. 3 shows a block diagram of a radio base station. 301 is a wireless communication control unit,
A central processing unit 302, software 303, a program unit 304 in the software, an OS unit 305 in the software, a memory unit 306 in the software, 30
Reference numeral 7 represents a wired communication control unit.

FIG. 4 and FIG. 5 show flowcharts of the diagnostic execution from the exchange to the radio base station. The software in the exchange confirms the call status of the subscriber line connected to the wireless base station to be diagnosed (401), and if there is a call, skips the corresponding wireless base station and skips to the next wireless base station. The station is diagnosed (403) or the call is released (404). Whether to skip or wait should be set in advance by the maintenance person based on the data,
The software determines which of the processes is to be performed according to the data (402). In the case of waiting for release, it is blocked so that a new call is not made to another speech channel (405). If it is confirmed that the subscriber line with the wireless base station is free, check the normality of the subscriber line for accommodating the corresponding wireless base station and the internal lines, devices, packages, and other hardware. For confirmation, the designated line, device, package, etc. are diagnosed by the instruction of software inside the exchange (406). Several stages are set for the diagnosis so that even if an error occurs during the process, it is possible to determine to what level the system was normal. When the hardware diagnosis is normally performed, the software in the exchange releases the blockage of the subscriber line and puts it in a state of accepting a call (407), activates the subscriber line control unit, and instructs the radio base station. And transmits a diagnosis start request signal (408). When the software in the wireless base station receives the diagnosis start request signal from the exchange from the wired control unit (409), the open / closed status of each slot of the current wireless section interface, wireless base station hardware / software alarm information, wired The state of the wireless base station, such as the free / closed state of each channel of the section interface, is collected (410), and the wired section control unit transmits a diagnostic result report signal to the exchange (411). When the subscriber line control unit receives the diagnosis result report signal received from the wireless base station (412), the software inside the exchange ends the diagnosis of the corresponding wireless base station and executes the diagnosis for the next target wireless base station. Yes (41
3). The software inside the exchange repeats the above procedure for all the radio base stations registered in the data in the exchange.

FIGS. 6 to 9 show flowcharts of diagnosis execution from the maintenance terminal of the exchange to the radio base station.
When the maintenance person performs the diagnosis from the exchange maintenance terminal, the radio base station to be diagnosed is designated as a single or a group (50
1). When the maintenance person selects a single radio base station (50
2) The software inside the exchange immediately diagnoses the wireless base station that the maintenance person has inserted into the exchange maintenance terminal (503). The method of performing the diagnosis is (401) of the first embodiment.
The procedure from (412) to (412) is performed. When the maintenance person selects the wireless base station of the group (504), the maintenance person further selects the group of the concentrator unit, the group of the wireless base station which was NG at the last diagnosis, or the original group created by the maintenance person. Select (505). The group of concentrator units (506), the software inside the exchange searches the storage medium in the exchange for all the wireless base stations accommodated by the concentrator that the maintenance person put into the exchange maintenance terminal (507), and stores them in the memory. A diagnostic target wireless base station list is created (508).
Next, diagnosis is performed for the first wireless base station on the list. The method of performing the diagnosis is (401) to (41) in the first embodiment.
The same procedure as 2) is performed. After the diagnosis of the corresponding radio base station is completed, the diagnosis of the next radio base station on the list is executed (509). When the diagnosis of the last wireless base station in the list is completed by repeating this procedure, the completion of diagnosis is displayed on the exchange maintenance terminal (510). In the case of a group of wireless base stations that was NG at the last diagnosis (511), the software inside the switch searches all storage bases in the switch for all wireless base stations that were NG at the previous diagnosis (512), and the diagnosis target is stored in the memory. A wireless base station list is created (513). The diagnosis method of the wireless base station on the list is performed in the same manner as in the case of the line concentrator. When the maintainer selects all the base stations under the specific group that are individually grouped in advance (514), the wireless base stations in the specific range are stored in advance by assigning a group name to the storage medium in the exchange. Is retrieved from (515) and transferred to the memory (516). The diagnosis method of the wireless base station on the list is performed in the same manner as in the case of the line concentrator.

FIGS. 10 and 11 are flowcharts of diagnostic execution by scheduling from the exchange to the radio base station. When the maintenance person performs the diagnosis scheduling from the exchange maintenance terminal, the radio base station to be diagnosed is designated as a single or a group (601). When the maintenance person selects a single radio base station (602), the maintenance person designates the line number of the relevant radio base station, the date and time when the diagnosis is executed, the time, and whether it is executed once or every time. (603).
The software inside the exchange stores the line number of the wireless base station designated by the maintenance person in the storage medium inside the exchange (60
4) Set a timer according to the date and time designated by the maintenance person. When the timer is activated at the designated time (605), the line number of the wireless base station stored in the storage medium in the exchange is read (606), and the diagnosis is immediately performed (607). The diagnostic method is described in (4) of Example 1.
The procedure from 01) to (412) is performed. When the maintenance person selects the wireless base station of the group (608), the maintenance person specifies the device number of the concentrator, the unique group number registered in advance, the date and time when the diagnosis is executed, and The execution is designated once or every time (609). The software inside the exchange stores the device number and group number specified by the maintenance person in the storage medium inside the exchange (610),
Set the timer according to the date and time specified by the maintenance person. When the timer is activated at the specified time (61
1), reading the device number or group number stored in the storage medium in the exchange (612), and searching the storage medium in the exchange for all wireless base stations accommodating the corresponding device number or group number (613). ), A list of wireless base stations to be diagnosed is created on the memory (614). Next, diagnosis is performed for the first wireless base station on the list. The diagnosis is carried out in the same manner as the steps (401) to (412) of the first embodiment. After the diagnosis of the corresponding radio base station is completed, the diagnosis of the next radio base station on the list is executed (615). When the diagnosis of the last wireless base station in the list is completed by repeating this procedure, the completion of diagnosis is displayed on the exchange maintenance terminal (616).

FIG. 12 shows accumulation of diagnostic results in the exchange.
The flowchart of edit / output is shown. The software in the exchange stores the diagnosis result of the corresponding radio base station as data every time the diagnosis of the radio base station is completed in the storage medium in the exchange (701). When the maintainer inputs a data output command from the exchange maintenance terminal and specifies the date of the data to be edited, the radio base station number or group number to be output, the output medium, etc. (702), the software inside the exchange is set to the data to be edited. The storage medium in the exchange is searched according to the date (703), and the wireless base station that has performed the diagnosis on the designated date or the designated date range is read (704).
Next, corresponding wireless base stations are collected from the wireless base station number and the group number designated by the maintenance person, an output list is created (705), and output to the medium designated by the maintenance person (706).

FIG. 13 shows a flow chart of transfer of the diagnosis result in the exchange to the external device. The maintenance person sets the name of the external device which outputs the diagnosis result from the exchange maintenance terminal and the date and time of transfer for each wireless base station or each group (801). The software inside the exchange creates an output file in which the output time and the radio base station to output for each external device name specified by the maintenance person are created and stored in the storage medium inside the exchange (802) and maintained. A timer is set according to the date and time designated by the person (803).
When the timer is activated at the specified time (804),
The software inside the exchange reads out the output file stored in the storage medium inside the exchange (805) and transfers it to the external interface section. The external interface unit checks the external device name set in the output file and determines whether the interface with the external device is a transfer type or a collection type (806). When the interface transfers the data other than the above, the file is transmitted (807), and when the interface is the collection type, the file is set in a location designated by the external device and awaiting the collection from the external device (808).

FIG. 14 shows a flowchart of the post-processing based on the diagnosis result in the exchange. The software inside the exchange confirms the information in the diagnostic result report signal from the radio base station at the end of the diagnosis of each radio base station (901). First, the wireless base station that outputs alarm information sends a power reset request from the subscriber line control unit to the wireless base station that outputs the alarm of the hardware unit ( 902). When the software in the wireless base station receives the power reset request from the wired control unit (90
3) The power reset request is issued to the hardware (904). The software inside the switch is a radio base station that outputs alarm information. For the radio base station that outputs the alarm of the software section, the subscriber line control unit issues a program restart request to the radio base station. It is transmitted (905). When the software in the wireless base station receives the program restart request from the wired control unit (90
6) The order is sent to the OS section to restart the program (907). Next, the software inside the exchange is
The wired side channel free state of the wireless base station in the diagnostic result report signal is compared with the subscriber line state of the wireless base station on the exchange side (908). If a mismatch occurs between the two states, the empty state of the corresponding subscriber line is cleared (909), and a channel state clear request is transmitted from the subscriber line control unit to the corresponding radio base station (910). .
When the software inside the wireless base station receives a channel state clear request from the wired control unit (911), the wired side channel free state is initialized (912). The software inside the exchange accumulates the results of post-processing (91
3).

FIG. 15 shows a flowchart of real-time display of the status of the radio base station. When the maintenance person activates the real-time monitor of the specific base station on the exchange maintenance terminal (100
0), the software inside the exchange transmits a real-time status display start request from the subscriber line control unit to the wireless base station (1001). When the software in the wireless base station receives the real-time status display start request from the wired control unit (1002), the wired control unit calls the exchange maintenance terminal to establish a call path with the exchange maintenance terminal (1003), A control signal to and from the wireless control unit and a control signal to and from the wired control unit are transmitted in-channel to the exchange maintenance terminal in real time (100
4). The exchange maintenance terminal visually displays a message on the screen of the information transmitted from the wireless base station and enables printout (1005). When the maintenance person terminates the real-time monitor (1006), the software inside the exchange transmits a real-time status display termination request to the radio base station from the subscriber line controller for the radio base station (1007). When the software inside the wireless base station receives the real-time status display termination request from the wired control unit (1008), the communication from the wired control unit to the exchange maintenance terminal is terminated (1009).

[0014]

According to the present invention, it is possible to prevent a failure from occurring by constantly monitoring the radio base station, and to prevent a state inconsistency with the exchange. Further, even when a failure occurs in the radio base station, the state of the base station can be grasped from the exchange, so that it is possible to quickly respond, and it is possible to realize a mobile communication system having excellent serviceability.

[Brief description of drawings]

FIG. 1 is a basic explanatory diagram of a mobile communication system.

FIG. 2 is a block diagram of an exchange.

FIG. 3 is a block diagram of a wireless base station.

FIG. 4 is a flowchart of a diagnostic execution from the exchange to the wireless base station.

FIG. 5 is a flowchart of a diagnostic execution from the exchange to the wireless base station.

FIG. 6 is a flowchart for executing manual diagnosis from the exchange maintenance terminal to the wireless base station.

FIG. 7 is a flowchart of manual diagnosis execution from the exchange maintenance terminal to the wireless base station.

FIG. 8 is a flowchart of manual diagnosis execution from the exchange maintenance terminal to the wireless base station.

FIG. 9 is a flowchart of manual diagnosis execution from the exchange maintenance terminal to the wireless base station.

FIG. 10 is an automatic diagnosis execution flowchart from the exchange to the wireless base station.

FIG. 11 is an automatic diagnosis execution flowchart from the exchange to the wireless base station.

FIG. 12 is a flow chart of accumulating / editing / outputting diagnostic results in the exchange.

FIG. 13 is a flowchart of transfer of a diagnosis result in the exchange to an external device.

FIG. 14 is a flowchart of post-processing based on a diagnosis result in the exchange.

FIG. 15 is a flowchart of real-time display of the state of a wireless base station.

[Explanation of symbols]

 101 ... Mobile exchange, 102 ... Wireless base station, 103 ... Concentrator, 104 ... Communication line, 105 ... Mobile terminal, 106 ... Wireless base station maintenance management system, 107 ... Switch maintenance system.

Claims (7)

[Claims] 1. A mobile communication system including an exchange connecting a radio base station and a plurality of radio base stations, wherein all the base stations accommodated in the exchange are communicated from the exchange to the radio base station. A method for automatically diagnosing a radio base station, which comprises diagnosing a state of a radio base station. 2. A radio base station automatic diagnosis method according to claim 1, wherein the radio base station is diagnosed by a manual operation from a maintenance terminal of the exchange to a base station in a specific range. 3. The diagnosis base station according to claim 1, wherein the date and time of diagnosis start / stop and the range of the diagnosis base station are scheduled in the exchange for each concentrating unit of the radio base station to automatically diagnose the radio base station. Radio base station automatic diagnosis method to be implemented. 4. The diagnostic result according to claim 1, wherein the diagnostic result is stored in an exchange and edited by status from a maintenance terminal to display on a screen, output to a printer, or output to an external medium. Radio base station automatic diagnosis method that can be performed. 5. The radio base station automatic diagnosis method according to claim 4, wherein the diagnosis result is automatically transferred to an external device on time and can be collected from the external device. 6. The radio base station automatic diagnosis method according to claim 1, which performs post-processing such as transmitting a control signal from the exchange to the radio base station according to the diagnosis result. 7. The wireless base station automatic diagnosis method according to claim 2, wherein the internal status of the wireless base station, the status of the wireless interface section, the wired interface section and the like are displayed on the maintenance terminal of the exchange in real time.