JPH0370321A - Remote measurement method for base ratio equipment - Google Patents

Abstract

PURPOSE:To reduce the number of times of patrol maintenance and test contents by providing a simulating mobile station and a switching monitor to each base station and a maintenance equipment to a central control station respectively so as to monitor the state of a base station radio equipment and to collect a measuring data at a remote location. CONSTITUTION:A system block for monitoring and measuring a base radio equipment from a remote location consists of a line controller 1, a maintenance equipment 2, a base station radio equipment 3, a switching monitor 4 and a simulating mobile station (QM) 50. In the case of a simple test such as a continuity test, the propriety of all channels arranged to base stations is discriminated automatically and an input output level of the base station radio equipment 3 and a receiver output of the simulating mobile station (QM) 50 are looped back and returned and the result is displayed automatically for the discrimination of the propriety. Thus, the number of times of patrol maintenance and test contents are relieved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a base radio system for selecting one of a plurality of base stations from a central control station and checking the operation of any radio equipment of that base station. Regarding the measurement method.

(Prior Art) Conventionally, in this type of base station radio equipment, the connection between a device mobile station consisting of a line control device and a maintenance device of a central control station and a base station radio device is confirmed, and a response signal (
When the control station receives the ACK, it is determined that the base station wireless device is operating normally. However, if there is a problem with the line connecting the base station and the control station, it is difficult to determine whether the base station is normal.

FIG. 5 shows a conventional monitoring system for base radio equipment. In FIG. 5, reference numeral denotes a line control device, and 2 a maintenance device, which includes a maintenance console 21 and a main monitoring device 22. 3 is a base station wireless device, which includes a transmitting antenna 31;
Receiving antenna 32, transmission duplexer 33, and reception duplexer 3
4, a transmitting coupler 35, a receiving coupler 36, a paging channel transmitter (T,) 37-1, a communication channel transmitter (T, □ to T5n) 37"2, and a communication channel receiver (R8, ~R, n) 38 and a sub-viewing device 39, and a communication channel transmitter (T8, ~T, □) 37-2
and channel receivers (Rst to R5-) 38 form a pair and are connected to a telephone exchange via the line control device 1. Further, the sub-monitoring device 39 is connected to send fault information to the main monitoring device 22 when a fault occurs in the transmitting/receiving device. 50 is a pseudo mobile station (QM), which includes a transmitter 51, a receiver 52, a controller 53, a handset 54, and the like. The output of the transmitting section 51 is connected to the receiving coupler 36 of the base station radio device 3, and the input of the receiving section 52 is connected to the transmitting coupler 35 of the base station radio device 3.

Next, the operation of the above conventional example will be explained.

(1) Automatic connection eggplant 1 - (ACK test) When test and automatic are selected from the maintenance console 21, a test display is displayed on an empty trunk (channel) by the line control device l from the calling channel transmitter (T, ) 37-1. Sent as a test channel. The pseudo mobile station (QM) 50 receives this channel at the receiving section 52, and the control section 53 sends the channel to the transmitting section 51.
A response signal (ACK) is transmitted. When the channel receiving unit 38 receives a channel corresponding to this channel and sends an ACK to the line control device 1, it immediately sends a call termination signal to the pseudo mobile station 50 to release the line, and then checks whether there is a next free channel and opens the line one after another. We will test the trunks (channels) that are connected.

(2) Manual connection test Set the maintenance console 21 to manual mode and input the trunk number (channel number), etc. that you want to test. The line control device 1 determines whether this channel is an empty channel, and if it is empty, it is tested and all trunks (channels) of the tested base station can be measured using the same method as the automatic connection test.

In this way, it is possible to monitor whether the conventional base station wireless device is operating normally on the premise that the line connecting the control station and the base station is operating normally.

(Problem to be solved by the invention) However, conventional maintenance of base stations involves periodic patrol maintenance, but if the central control station knows the details of the failure, it is necessary to have spare parts in advance. Efficient maintenance can be done by visiting the site or assigning specialized maintenance personnel, but this has not been possible with conventional methods.

In addition to solving the conventional problems of the present invention, the central control station can access any base station and any channel whenever necessary, whether it is weekly, daily, or hourly, to check the operation and general functions of wireless equipment. The purpose is to provide a measurement method that can reduce the number of maintenance visits and test content by removing radio equipment on faulty channels and switching to backup equipment, etc., if necessary. .

(Means for Solving the Problems) In order to achieve the above object of the present invention, a pseudo mobile station is provided in each base station, and when it is desired to know the operation of each base station radio device or transmission line, a pseudo mobile station is provided. The base station, wireless channel, etc. to be tested will be placed on test hold.
The called pseudo mobile station is sent a store number signal (A
It is connected to the antenna system with a mode in which the connection is checked using the CK signal) and a coupling loss corresponding to the propagation loss promised in advance, and the call is automatically answered (footer up) at an appropriate timing. A pre-arranged signal is sent from the central control station to the base station, and its modulation level and the output of the pseudo mobile station receiver are detected to make a pass/fail determination. Furthermore, the transmitter of the pseudo mobile station is modulated with a previously agreed signal, and the base station receiver output is sent back to the control station via the transmission line, and the pseudo receiver output is looped back from the transmission. , the levels are detected, these are converted to a value, and transmitted to the control station for display, thereby allowing maintenance of various parts of the communication system.

(Function) Therefore, according to the present invention, even at the central control station, it is possible to determine the quality of base station radio equipment located at a remote location and to know the details of the failure, and it is possible to perform simple tests such as connection tests. can automatically determine the quality of all channels allocated to a base station. In addition, the input/output culvel of the base station radio equipment and the output of the pseudo mobile station receiver are sent back,
The results can be automatically displayed to determine whether the product is good or bad, and the measurement results can be printed out on a printer.As a result, maintenance work can be carried out efficiently and automatically.

(Embodiment) FIG. 1 shows blocks for explaining a system to which an embodiment of the present invention is applied. In Figure 1,
1 is a line control device for communicating between a mobile station and a wired telephone via a base station, 2 is a maintenance device for maintaining the base station wireless device, 3 is a base station wireless device, 5 is a repeater, and 6 is a multiplexer. If the distance is long, a wireless multiplex line is used, and in the case of Dogetsusha, a pair line or the like is used. 7 is a distribution frame (MDF), 8 is a general telephone exchange, 9 is a wired telephone, io is a carrier terminal equipment, and 11 is a mobile station.

Next, the operation of the above system will be explained. Now, when calling the mobile station 11 from the wired telephone 9 (T□) 9,
Dial the mobile station number from the wired telephone 9. The dialed number is identified by the exchange 8 and entered into the line control device 1 of the car telephone, where the line control device 1 reads out the area where the mobile station is located and determines the base station in the area. When the base station radio device is 3A or 3B, the mobile station 11 is called from the paging channel Pa or pb of the carrier terminal device 10.

Since the paging channels Pa and pb indicate several empty channel numbers that can be used at any time, the mobile station 11 that received the call selects one of the empty channels and sends a response signal (A C
Return K). The line control device makes a call by sending a signal to ring the bell of the mobile station 11 (hereinafter referred to as a bell signal). When the mobile station 11 goes off-hook, a call is made. Note that each channel of the multiplex line 6 is connected to a corresponding transmitting/receiving device of the base station, so that by selecting a channel, the base station and its wireless device can be selected.

FIG. 2 shows a system block for monitoring and measuring base radio equipment from a remote location in one embodiment of the present invention. A base station wireless device 3 and a pseudo mobile device are shown. In FIG. 2, 1 is a line control device, and 2 is a maintenance device, which includes a maintenance console 21, a main monitoring device 22, a display 23 for displaying data on the maintenance console 21 and data on the main monitoring device 22, and a printer 24. . 3 is no 1
(Another station wireless device, including transmitting antenna 31, receiving antenna 32, transmitting duplexer 33, receiving duplexer 34, transmitting coupler 35, receiving coupler 36, paging channel transmitter (T,
) 37-1〜Transmission for communication channels in which the necessary number is arranged according to traffic * (Tg□~T, n) 37-2, reception for communication channels paired with receivers for communication channels (T1□~Tan) It has 38 machines (Rzz "" RI-). 4 is the cutoff TF provided for each base station! A monitoring device,
Switching controller 41. Sub-monitoring device 42. Transmitter and receiver function information switch 43. It has a detector 44 (44P, 44A, 44L) for the switching output of the switching device 43. 50 is a pseudo mobile station.

Transmission unit 51. Receiving section 52. Control unit 531 Handset 54 for calling. It has a detector 552 of the communication channel designated by the maintenance monitoring device, a changeover switch 56 for each function, etc., the output of the transmitting section 51 is connected to the coupler 36 of the receiving duplexer 34, and the input of the receiving section 52 is connected to the transmitting duplexer 33. coupler 35. The channel detector 55 also provides channel information to the switch 43 to connect the information of the designated transceiver to each detector 44 . The changeover switch 56 is configured to be able to be changed by a command from the maintenance console 21. In the main monitoring device 22, PWR is the output level of the transmitter, LIM is the reception level of the receiver, and A
F is the signal output level of the receiver, DEV is the output level of the receiver of the pseudo mobile device, and is a lamp (for example, an LED) that indicates the measured value of the modulation level of Tff, ˜T, n.

FIG. 3 shows details of the maintenance console 21 shown in FIG. In FIG. 3, A to G are designated key switches or key buttons, A is automatic nI setting, B is
Hand #J measurement, C is detailed measurement, D is call connection, E is trunk designation for call channel designation, F is call designation, G
is a stop to open the line, H is a dial used to send divine numbers such as trunk numbers and mobile station numbers, and J is a handset for making calls.

Next, the operation of the embodiment using each of the above devices will be explained with reference to FIGS. 1 to 3.

(1) Automatic connection test (ACKC strike) AC of all base stations
A flowchart for performing a KC strike is shown in FIG. 4-1. First, turn on the call designation switch F on the maintenance console 21.
Make it. At this time, if the automatic measurement switches A are all set at the same time, the base is not specified, so the line control device reads the empty channels of all trunks. Figure 4-1 S□-5,) The youngest trunk is captured. Figure 4-1 54), determine the call channel to be tested and displayed on this trunk (Fig. 4S,
).

Here, once the test trunk is determined, the paging channel transmitter (hereinafter referred to as
The number of the pseudo mobile station (hereinafter referred to as QM) 50 is sent from the mobile station 37-1 (hereinafter referred to as TP) (86 in Fig. 4-1).

0M50 is transmitted from the designated trunk channel number and returns a response signal (hereinafter referred to as ACK).

When the line control device 1 detects the ACK, it immediately sends a call termination signal (
(hereinafter referred to as OFF) and 0M50 releases the line. At this time, if the line control device 1 detects an ACK, it is assumed that the connection is OK (Fig. 4-1, 37-59), and if there is no ACK, it is considered a failure (Fig. 4-1, S, -S,).The maintenance console 2
1, display on the display 23, and print 24.
Print it out and end the call (see Figure 4-1 S). Check whether there is an empty channel on the line control device (see Figure 4-1).
1 Figure 81 □). If there is an empty channel, the trunk number is incremented by l and it is checked whether the trunk is busy or not (S0, -S in Fig. 4-1).

At this time, if it is busy, it memorizes the busy state, increments the trunk number by 1 again, and repeats the same operation as above (No. 4-1).
Figure S□31 St4+ S Eng2). Also, if it is not busy, it captures the trunk with the number, displays this trunk as a test display, sends the number 0M50 corresponding to the trunk number, and waits for ACK (S13S4-S, -5 in Figure 4-1).
G). Thereafter, by the same operation as above, the trunks in the room are sequentially tested, and when there are no vacant trunks (S, 1-S in Figure 4-1), the remaining trunks to be tested (channels in use) are Sometimes display display 2
3, and when the display is finished, the test is stopped (FIG. 4-1 SIS-S 1□-5t-). If there is no trunk remaining for testing, the test is stopped and the test is completed (S1.S, s in Figure 4-1).

Note that when testing is performed by specifying a base station, the base station number (zone number, etc.) is entered from the maintenance console 21 so that only the specific base station can be tested.

(2) White! 11IJ Measurement Test (Detailed Test) A flowchart for automatic 8111 constant testing of all base stations is shown in FIG. 4-2. When performing an automatic measurement test, turn on the detail designation C and call designation F switches on the maintenance console 21. In this case, until the number 0M50 is sent (the fourth
-2 Figure 82□~526) is the ACKC explained in section (1).
This is the same as in the case of strike (4th-1s, to 5Il). As soon as the line control device 1 detects an ACK, it enters the test information reception state, and the data is passed through the maintenance console 21 and displayed on the display 23, and is also sent to the printer 2.
4 (Fig. 4-2 s2.-s,
-s3. -s, 1). Also.

If there is no ACK, it is displayed as a failure on the display 23 and printed out on the printer 24 (Fig. 4-2).
zt-3zs-Sa. -81,). When the above operations are completed, the call is terminated and the presence or absence of an empty channel is checked.
This is the same as in the case of the ACKC strike in 1).

(3) Manual measurement test A flowchart of the manual measurement test is shown in Figure 4-3.

Turn on the switches for manual measurement B and detailed measurement length call designation F on the maintenance console 21, and use dial H to set 0M50.
dial the number. Also, set automatic measurement A to specified, and select trunk number with trunk specification E. At this time, if the trunk with the selected number is not busy, a test message will be displayed and the QM number will be sent (Figure 4-3 s4.-s4.-
s, 4-s4s). If the selected trunk is busy, use the stop G switch on the maintenance console 21 to stop it, and select the trunk number again using trunk designation E. When the line control device 1 detects an ACK from the selected QMSO, the test information is received and the data is sent to the maintenance console 2.
1, it is displayed on the display 23 and printed out on the printer 24 (Fig. 4-3 s, 1s
4. -s,, -s,. ). After data collection, release the stop G switch ONL and 0M50 on the maintenance console 21. Also, if ACK from 0M50 is not detected, it will be printed out and displayed as a failure (4th
-3 Figures, 1s 47-s o-s so).

(4) Call test A flowchart of the call test is shown in Figure 4-4.

When performing a call test, turn on the call connection and call designation switch F on the maintenance console 21.

Also, select the trunk number with trunk designation E and dial H.
Dial the number 0M50 at . The operation until the QM number is sent is the same as in the case of manual measurement (No. 4-
Figure 4 SSX ~ 5ss). After detecting the ACK from 0M50 in the line control bag [1, send a bell request signal to 0M50
Wait for a response (S, -S, -S, , in Figure 4-4).

If ACK cannot be detected, it is determined to be a failure, and is displayed on the display 23 and printed out on the printer 24 (FIGS. 4-4 S, 6-SR,). If 0M50 responds to the bell request and goes off-hook, the call is established and 1
After the call ends, press the stop G switch on the maintenance console 21 to ○N.
L, release QM50. In addition, if there is no response at 0M50, it is OK if the ringback tone can be confirmed on the telephone handset J of the maintenance console 21 (Figure 4-4 SG, -S,, -S, 1). (Figure 4-4 S, , -S, □-8G9).

(Effects of the Invention) As is clear from the above embodiments, the present invention includes a switching monitoring device consisting of a pseudo mobile station, an A/D converter, etc. in each base station, and a maintenance device 11 on the central control station side. This has the advantage that the status of base station wireless equipment and measurement data can be collected remotely. In addition, J, (other station selection, automatic/manual selection, trunk (
Since it has functions such as channel selection, it is possible to access any base station or channel automatically or manually when necessary and check the operation and general functions of the base station radio equipment by displaying it on the display or printing it out. Furthermore, if necessary, by removing the radio device on the faulty channel or switching to a standby device, it is possible to reduce the number of maintenance visits and test content.

[Brief explanation of drawings]

FIG. 1 is a block diagram for explaining a system to which an embodiment of the present invention is applied; FIG. 2 is a system block diagram for monitoring and measuring base radio equipment from a remote location in an embodiment of the present invention; FIG. 3 is a detailed layout diagram of a maintenance console of a maintenance device according to an embodiment of the present invention, FIG. 4 is a flowchart showing a remote measurement method according to the present invention, and FIG. 5 is a diagram of a conventional base radio monitoring system. It is. 1...Line control device, 2...Maintenance device, 3...
・Base station wireless device, 4...Switching monitoring device, 5
. . . Relay machine, 6 . . . Multiple line, 7 . . . Distribution frame (MDF), 8 . 11...Mobile station, 21...Maintenance console, 22.
・・Main monitoring device, 23・・Display display, 24・
...Printer, 31...Transmission antenna, 32...Reception antenna, 33...Transmission duplexer, 34...Reception duplexer, 35° 36...Coupler, 37-1...Paging channel Transmitter for communication channel (Tp), 37-2... Transmitter for communication channel (T3, ~'rgn), 38... Receiver for communication channel (Rtz""Rya), 39.42
- Sub-monitoring device, 41... Switching controller, 43... Switching device, 44.58... Detector, 50... Pseudo mobile station (
QM), 51--Transmitting section (TQ), 52-- Receiving section (Ro), 53-- Control section, 54-- Handset, 55-- Channel detector, 56 Changeover switch, 7 Oscillator .

Claims (1)

[Claims] 1 including a plurality of wireless devices including an antenna system and a control device
Or in a mobile radio system consisting of a plurality of base stations and a telephone switching center including a control station connected to the base stations, each base station is composed of radio equipment corresponding to each radio channel, and each base station has radio equipment corresponding to each radio channel, and a paging channel and a communication channel. A channel selection switch including a selection, an A/D conversion device for quantizing the respective outputs of a transmission output detection section, a reception input detection section, and a receiver output detection section of a designated channel, and a base station radio that is assigned an individual number. comprising an antenna system of the device and a pseudo mobile station coupled with a coupling loss corresponding to a predetermined propagation loss,
An A/D converter that quantizes the receiver output, a tone signal oscillator that gives appropriate timing and a predetermined modulation to the transmitter as an off-hook state, and a tone signal that is specified according to the control signal from the control station. Sending the quantized information of the channel to a control station via a transmission line, the control station transmitting the name or number of the base station to be tested, a tone signal oscillator for measuring the speech level, and the transmission returned from each base station. Telemetry of a base radio, characterized by displaying quantized signals of output, reception level, receiver output, and receiver output of a pseudo mobile station as predetermined analog quantities or information that can be determined in several stages. Method.