JPH0865229A - Maintenance and supervisory system of radio base station - Google Patents

Abstract

PURPOSE: To monitor the state of the radio base station in real time by providing a base station maintenance and supervisory console to a radio base station and allowing the radio base station to locally conduct adjustment, test and measurement thereby allowing the radio base station to conduct the test singly. CONSTITUTION: When a maintenance and supervisory section 10 of a base station maintenance and supervisory console 9 requests monitoring a base station MO DEM 2, the base station MODEM 2 makes monitor operation, a control signal sent/received for connection control of a call is separated by a separation insert section 5 and sent to the base station maintenance and supervisory console 9 through a maintenance and supervisory console interface section 6. A maintenance and supervisory section 10 edits required information from the control signal and displays the result. Furthermore, a control signal sent/received between the base station MODEM 2 and the mobile station is informed to the base station maintenance and supervisory console 9 to monitor the content of the control signal and its flowing way. Furthermore, the information is detected from the control section 3 of the base station MODEM 2 is detected and the maintenance and supervisory section 10 monitors the propagation quality with the mobile station.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio base station maintenance and monitoring system for mobile communication devices. With the spread of mobile communication in recent years, the number of mobile stations and wireless base stations is on the rise. Therefore, it is desired to add and maintain mobile stations and base stations efficiently and economically.

[0002]

2. Description of the Related Art FIG. 11 is an explanatory view of a conventional example. Figure 11
, 90 is a wireless base station that is installed in each fixed zone and controls outgoing / incoming communication with mobile stations (cell phones, automated telephones, etc.) within the zone, and 91 is a mobile station (displayed in PS. ), A base station modulator / demodulator for controlling wireless communication with the mobile station, reference numeral 92 denotes a fixed station for testing provided to test the function of the base station modulator / demodulator 91 of the wireless base station having the function of the mobile station, 93 is a display operation unit, 94 is a control station (also referred to as a switching center) which is connected to a plurality of wireless base stations 90 by a wired line and controls outgoing / incoming calls of each wireless base station 90,
Reference numeral 95 is a test monitoring device composed of a workstation or the like for performing a test, and 96 is a line (dedicated line or the like).

Under control of the control station 94, the radio base station 90 performs radio communication between the base station modulator / demodulator 91 and the mobile station PS. Therefore, when the wireless base station 90 is newly added and connected to the control station 94 through the line 96, various tests and monitoring such as adjustment of the device of the wireless base station 90, confirmation of call operation, and detection of voice level are performed. However, conventionally, the work is intensively performed through the line 96 by the test monitoring device 95 provided in the control station 94.

Specifically, when testing the function of the base station modulator / demodulator 91, the control station 94 controls the operation for making a call from the test fixed station 92, and the base station modulator / demodulator 91 is operated in response to the call. Information representing the control operation is collected by the control station 94 to monitor the function at the time of making a call, and the test of the incoming operation from the radio base station 90 to the mobile station is performed from the control station 94 to the base station modulator / demodulator 9
The control station 9 operates to generate an incoming call to the test fixed station 92 in response to 1 and put the test fixed station 92 into a call state in response.
In step 4, information on each state is collected and monitored.

Further, performance measurement is performed to detect how much load (the number of outgoing / incoming calls) the radio base station 90 can handle. In this case as well, the test monitoring device 95 of the control station 94 is also used.
To generate an incoming / outgoing call from the base station, and at this time, the control station 94 collects the operating rate of the control unit (CPU) of the base station modulator / demodulator 91 of the wireless base station 90 to perform a predetermined calculation. The approximate value of performance was calculated by.

Note that the display operation unit 93 of the conventional radio base station 90 is used when the data (used by software) held in the base station modulator / demodulator 91 is specified and the data is retrieved from the memory and displayed. To be done.

[0007]

As described above, when a radio base station (and a mobile station) is added for adjustment and testing, or when the radio base station is maintained and monitored after the operation is started. In addition, the conventional technology has the following problems.

(1) In the performance measurement of the wireless base station at the time of expansion,
Since it is performed indirectly by the control station, the measured value cannot be obtained, and the data cannot be said to be accurate. (2) Use of a pay line between the control station and the wireless base station for a long time to adjust, test, and measure all equipment from the control station (switching device) before the additional wireless base station starts operation It is necessary to do this, and it will be a huge line usage fee.

(3) Since the control station and the radio base station are connected and adjusted while making contact with each other, the work efficiency is lowered and it is not possible to provide a quick maintenance service. (4) The control station cannot monitor the equipment in real time because it collects various information from the wireless base station.

(5) The radio base station cannot perform the test unless the connection with the control station is completed. (6) There is a request from the radio base station to perform a test of control of information collection control of mobile stations, rewriting control of ID (mobile station ID number), and control of call connection with mobile stations when a radio base station is added. However, it cannot be executed from the radio base station controlled by the control station.

According to the present invention, a radio base station alone controls a test fixed station, monitors a control signal with a mobile station, monitors and measures propagation quality with a mobile station, monitors an operating state in a radio base station, and moves. An object of the present invention is to provide a radio base station maintenance / monitoring system capable of collecting station information, rewriting IDs, controlling connection of calls with mobile stations, and measuring performance of radio base stations.

[0012]

FIG. 1 is a block diagram showing the principle of the present invention. In FIG. 1, reference numeral 1 is a radio base station, 2 is a base station modulator / demodulator, 3 is a control unit including functional units for radio communication control, call control, quality measurement, etc., 4 is a base station control device interface unit, and 5 is Separation / insertion unit, 6 is a maintenance monitor console interface unit, 7 is a test fixed station interface unit, 8 is a test fixed station, 9 is a base station maintenance monitor console, 10 is an information editing unit,
A maintenance monitoring unit including a call connection control unit and a display operation unit, 11 is a base station modulation / demodulation device interface unit, 12 is a transmission / reception interval measurement unit, and 13 is a radio wave transmitted from the base station modulation / demodulation device 2 or a test fixed station radio wave. Measuring instrument, 14 is line, 15
Is a base station control device of a control station connected to the radio base station via a line.

According to the present invention, a base station maintenance monitor is provided in a radio base station, and control signals transmitted and received between the base station modulator / demodulator and the base station controller of the control station are separately monitored and the maintenance monitor is maintained. Control the connection of the call to the base station modulator / demodulator to detect the transmission / reception level, measure the transmission / reception interval, etc., and perform adjustments, tests, and measurements locally at the wireless base station.

[0014]

When the maintenance monitor 10 of the base station maintenance monitor 9 requests the monitor of the base station modulator / demodulator 2, the base station modulator / demodulator 2 performs the monitor operation. That is, the base station control device 15 of the control station transmits / receives a control signal to / from the base station modulation / demodulation device 2 of the wireless base station 1 via the line 14 to control the connection with the mobile station (not shown). When the monitor operation is accepted, the control signal transmitted / received for controlling the call connection is separated by the separating / inserting unit 5, and is sent to the base station maintenance / monitoring console 9 through the maintenance / monitoring console interface unit 6. The maintenance monitor 10 edits and displays necessary information from the control signal.

The control signal transmitted / received between the base station modulator / demodulator 2 and the mobile station is also notified to the base station maintenance / monitoring desk 9 so that the maintenance / monitoring section 10 monitors the content and flow of the control signal. You can

When the base station maintenance monitor 9 requests the use condition of the radio channel used for communication with each mobile station from the base station modulator / demodulator 2 and the measurement of radio wave quality (reception level, reception error rate, etc.). Each information is detected from the control unit 3 of the base station modulation / demodulation device 2 and notified to the base station maintenance / monitoring console 9, and the maintenance / monitoring unit 10 monitors the propagation quality between the base station modulation / demodulation device 2 and the mobile station. You can

Further, the control unit 3 outputs the internal status information and operation information of the base station modulator / demodulator 2 periodically or when the contents change, and when it is sent to the base station controller 15, the separating / inserting unit 5 causes the base station to operate. The maintenance monitoring console 9 is also separated, and the base station maintenance monitoring console 9 can monitor the detailed state of the base station modulator / demodulator 2 by receiving each information.

By generating a control signal from the maintenance monitoring unit 10 of the base station maintenance / monitor console 9, the base station modulator / demodulator 2 can test the call connection control using the fixed test station 8.

The base station maintenance and monitoring console 9 receives and displays the monitoring information by the maintenance and monitoring unit 10, and generates control information according to the command input by operation to transmit it to the base station modulator / demodulator 2, and the control unit 3 To control. This also includes a control signal sent to the mobile station, so that the mobile station can be maintained and monitored.

The radio base station 1 does not measure the quality (frequency characteristic, electric field strength, spread of radio wave, etc.) of the radio wave of the base station modulator / demodulator 2 or the radio wave of the test fixed station, not by the base station controller 15 of the control station. In this case, radio waves are sent from the base station modulator / demodulator 2 or the test fixed station 8, measured by the measuring device 13, and displayed by the maintenance monitoring unit 10 of the base station maintenance monitoring console 9.

Further, a control signal is generated from the maintenance monitoring unit 10 to generate a control signal for connection control, and the control signal is sent to the base station modulator / demodulator 2 to execute call connection control.
The control signal sent from the base station controller 15 to the base station controller 15 is received by the base station maintenance monitor 9, and the transmission / reception interval is measured by the transmission / reception interval measuring unit 12 to check the load performance of the base station modulator / demodulator 2 in call connection control. Can be monitored.

[0022]

FIG. 2 is a block diagram of an embodiment. In the figure, 20 is a radio base station, 21 is a base station modulator / demodulator, 22 is a test fixed station having the same function as a mobile station, 23 is a base station maintenance monitor, 24 is a mobile station (or mobile device), 25 Is a measuring instrument connected to the base station maintenance and monitoring console, 26 is a line, and 27 is a control station (or exchange).

Reference numerals 21a to 21d of the base station modulator / demodulator 21 correspond to the respective portions 4 to 7 of FIG. 1, 21a is a base station controller interface section, 21b is a separate insertion section, 21c is a maintenance monitor interface section, and 21d is It is a fixed station interface for testing. Further, 21e to 21i configure the control unit 3 of FIG. 1, 21e is a common control unit, 21f is a wireless communication control unit, 21g is a call control unit, 21h is a layer conversion unit,
Reference numeral 21i is a quality measuring unit that measures the reception level of radio waves and the error rate.

At the base station maintenance monitor 23, 23a,
Reference numeral 23b corresponds to 11 and 12 in FIG. 1, 23a is a base station modulator / demodulator interface section, and 23b is a transmission / reception interval measuring section. Reference numerals 23c to 23g constitute the maintenance monitoring unit 10 of FIG. 1, 23c is a monitoring information editing unit, 23d is a control information editing unit, 23e is a connection control unit, 23f is a call generating unit, and 23g.
Is a display operation unit, and 23h is a measuring instrument interface unit.

In the configuration of the second embodiment of FIG. 2, 21e to 21i in the base station modulator / demodulator 21 will be described.
The common control unit 21e manages the state information and the operation information in the base station modulation / demodulation device 21, and the information is exchanged between the base station control device interface unit 21a and the base station control device 27a periodically and when the contents change. The lower layer of the control signal is added and the base station maintenance monitor 23 is notified.

As a result, the operating state of the base station modulator / demodulator 21 can be monitored on the base station maintenance monitor 23. The wireless communication control unit 21f wirelessly exchanges control signals with mobile stations, and the call control unit 21g controls call (outgoing / incoming) connection by transmitting and receiving control signals from the base station controller 27a. The layer conversion unit 21h converts a control signal transmitted / received to / from a mobile station to an upper layer (a layer processed by the common control unit 21e, the base station control device 27a, or the like), or controls on the common control unit 21e side. The information is inversely converted into a lower layer signal between the wireless communication control unit 21f and the mobile station 24. Further, the quality measuring unit 21i is connected to the wireless communication control unit 21f and measures the propagation quality transmitted and received between the wireless base station 20 and the mobile station 24. Specifically, the reception level of the radio wave and the reception error rate are measured. Also, the communication power and the like are measured, and the measurement result is sent to the base station maintenance and monitoring table 23.

Next, in the base station maintenance / monitoring table 23, 23
Explaining each part of c to 23h, the monitoring information editing unit 23c edits necessary control information from the control information from the base station modulator / demodulator 21, and the edited result is the display operation unit 23g.
Is displayed in. The control information editing unit 23d is the display operation unit 23.
The control information is generated according to the command (instruction of monitoring, test, etc.) input from g, and the connection control unit 23e receives the instruction from the display operation unit 23g or the call generation unit 23f and the mobile station 2
4 generates a control signal necessary for connecting a call between the wireless base station 4 and the radio base station 20 and performs sequence control, and the call generation unit 23f issues a single call for a call connection test or a load test of the base station modulator / demodulator 21. Alternatively, the display operation unit 23g includes a display unit such as a display for displaying collected control information, monitored state information, measurement or measurement results, and a keyboard and mouse for inputting commands and control data. It is equipped with an operating unit. The measuring instrument interface unit 23h displays the display operation unit 23 when performing a local test in the wireless base station.
Sends and receives signals to and from g.

FIG. 3 is a sequence of control signal monitoring operation. This is for monitoring the control signal between the base station modulator / demodulator 21 and the mobile station 24. The display operation unit 23g of the base station maintenance monitor 23 monitors the mobile unit (the same as the mobile station) A. The monitor start request signal a is output to the base station modulator / demodulator 21 (a in FIG. 3). The device number A of the mobile unit is attached to the monitor start request signal, and upon reception of this signal, the common control unit 21e sends and receives the signal according to the mobile unit number between the mobile unit A and the base station modulator / demodulator 21. (B, d, f, h in FIG. 3) are extracted and each signal (FIG.
C, e, g, i) from the base station modulation / demodulation device 21 to the base station control device interface unit 21a and the separation / insertion unit 2 of FIG.
1b, the information is transmitted to the base station maintenance and monitoring console 23 via the maintenance and monitoring console interface section 21c. In the example of FIG. 3, the control signal is exchanged between the base station modulator / demodulator 21 and the mobile station B, but only the signal relating to the mobile station A is monitored.

In the base station maintenance / monitoring table 23, the monitor information editing section 2 is connected via the base station modulator / demodulator interface section 23a.
3c receives, edits necessary information, and displays the operation unit 23.
It is possible to send and receive control signals to and to monitor the flow (change) of signals in real time. This monitor operation is ended by sending a monitor end request (j in FIG. 3) from the base station maintenance monitor 23 and being accepted by the base station modulator / demodulator 21.

In case of monitoring the above control signal, as shown in FIG.
The control signal exchanged between the mobile station 24 and the wireless communication control unit 21f is subjected to layer conversion by the layer conversion unit 21h.

FIG. 4 shows the frame structure of each layer. FIG. 4a shows a frame structure of a control signal transmitted and received between the base station controller interface unit and the base station controller,
An address section (consisting of each address of a transmission source and a transmission destination) is provided at the top of the function type, and then a control section (call processing signal, call control processing, maintenance monitoring signal, etc.) is provided. 4b is
It is a frame structure of a control signal transmitted / received between the mobile device and the wireless communication control unit, and the lower layer of this control signal is a layer conversion unit (21h in FIG. 2), and signals such as "function type" and "address unit". Is added and converted into a signal as shown in FIG. 4A, and passes through the base station controller interface section 21a, and the base station controller 27a of the control station 27 and the base station maintenance / monitoring table 23 when the monitor is being executed. Also sent to.

FIG. 5 is a sequence of control signals between the control station and the mobile station at the time of call connection. This example is a sequence when a call is made from a mobile station, and the control signal is transmitted and received between the control station and the mobile station via the base station modulator / demodulator of the radio base station, and the monitor start request shown in FIG. When generated, these control signals relating to the mobile station having the designated mobile station number are also separated and sent to the base station maintenance monitor.

In the figure, I represents a numbered information transfer command, U represents a non-numbered command, and UI represents a non-numbered information command. The first signals a to f are each composed of three signals. Is radio management (RT: Radio Transmission)
The following are signals used for management or control: for mobile management (MM: Mobility Management), next for call control (CC). Tch represents a call channel, a synchronization signal and a wireless channel designation for a call are sent by a start request, a call channel is set by completion of synchronization, and similar operations are performed in each of the down and up directions. The calling operation of calling and response is performed.

FIG. 6 is a control flow of the separating / inserting section. The separation / insertion unit (see FIG. 2, the same applies hereinafter) receives a monitor request from the base station maintenance / monitoring console 23 shown in FIG. 3 and other various requests for maintenance / monitoring described later on the base station controller interface 21a side. The signal from the control station is separated into the base station maintenance monitor, and FIG. 6 mainly shows the control for separating the signal from the base station controller interface 21a.

The operation of FIG. 6 will be described. When a signal from the base station controller interface section is received (S in FIG. 6).
1), it is determined whether or not it is currently connected to the maintenance monitoring console (it is receiving a request and is operating) (at step S2), and if it is not connected, nothing is done. Judgment is made according to the type (at step S3), and if it is a maintenance monitoring signal, the signal is passed to the maintenance monitoring console interface section 21c (at step S8).
If it is not the maintenance monitoring signal, it is determined whether it is a response signal to the request from the maintenance monitoring console (S4), and if applicable, the above S8.
Is performed, and if it is not applicable, it is determined whether the signal is a response signal to both the control station and the maintenance / monitoring console (S5). In this case, if the response signal is for both the control station and the maintenance / monitoring console, it is passed to the control station (at step S6) and also to the maintenance / monitoring console interface section (at step S8), and the signal is controlled unless it is a response to both. Hand it over to the station (S7).

Next, the monitoring of the propagation quality between the base station modulator / demodulator and the mobile station will be described. This operation is such that when a "quality monitoring start request" is transmitted from the display / operation unit 23g of the base station maintenance / monitoring desk 23 to the base station modulator / demodulator 21, the maintenance / monitoring console interface unit 21c, separation / insertion unit 21b, base station control The quality measuring unit 2 via the device interface unit 21a
1i is notified. The quality measuring unit 21i sets the reception level of the radio wave from the mobile station, the reception error rate, and the transmission power in the up direction (transmission direction from the mobile station to the radio base station) and the down direction (transmission direction from the radio base station to the mobile station). It measures and notifies the result to the base station maintenance monitor 23. Base station maintenance monitor 23
Then, the monitor information editing unit 23c edits and displays it on the display operation unit 23g.

FIG. 7 is a display example of results obtained by quality monitoring. In this example, sectors 1 to 3 are provided with a zone surrounded by a circle with a fixed distance centered on the radio base station, and the circumference 360 ° is divided into three radial lines to be divided into three areas. , Each channel (frequency) is used for multiplexing with each area as a sector. TRX # 1, TRX #
2 ... is each channel (C
H) is a transceiver that uses
TDMA (Time Division Maltiple Acces) for each channel
s) is used in time division multiplexing and consists of three slots S0 to S2, each slot is assigned to the communication of one mobile station, and one channel is used for simultaneous transmission and reception of a total of three mobile stations. You can

TRX # 1 to #X are displayed on the display screen of FIG.
The current measurement results of each transceiver of No. 6 are displayed in real time, and the measurement results of # 7 to # 12, # 13 to # 18 and # 19 to # 24 are displayed on all channels by specifying the screen switching. The measurement result of each communication can be sequentially displayed.

In the example of FIG. 7, for example, the slot S0 of the sector 3 is in an idle channel state in the case of TRX # 1 and # 2, is in use in the case of TRX # 3, and the reception level of the upstream signal is 32 ( dBμ), the error rate is 7, and the transmission power is 16 (d
B), the reception level of the downlink signal is 45 (dBμ),
The error rate is 7 and the transmission power is 12 (dB). The status of each slot is indicated by various marks. The meanings are as shown in the lower part of FIG. 7, white circles are empty CHs (channels), black circles are empty CH abnormal radio waves, and white star marks. During a call, there are various states such as quality deterioration of a black star symbol, control CH operation in a white square, control CH pause in Δ, and control CH abnormal radio wave in a black square.

FIG. 8 is an explanatory diagram of local monitoring. FIG.
In, in the two zones of area 1 and area 2, radio base stations # 1 and # 2 are provided, respectively, and a switching center (control station)
The wireless base station # 1 is connected by a line, but the wireless base station # 2 in the area 2 is not connected (newly added).

Both the area 1 and the area 2 can test the function of each base station modulator / demodulator 21 without going through the exchange. In this case, the base station maintenance monitor 2
3 (the same as the base station maintenance and monitoring console 23 in FIG. 2), the test fixed station 22 is wirelessly called from the antenna of the base station modulator / demodulator 21 and the test fixed station 2 is called.
When it is received by the two antennas, it responds to test the incoming connection in a pseudo manner, and conversely, under the control of the base station maintenance and monitoring console 23, the fixed test station 22 wirelessly transmits the data and the base station modulator / demodulator 21 It can be received and tested for outgoing connections.

Further, the radio wave quality (frequency characteristic, electric field strength, spread of radio wave, etc.) of the radio base station 20 or mobile station can be measured locally without passing through the exchange.
In that case, when the base station maintenance monitor 23 transmits a control signal instructing the base station modulator / demodulator 21 or the fixed test station 22 to transmit a radio wave and sends a control signal instructing the measuring device 25 to perform measurement, Radio waves transmitted from the station modulator / demodulator 21 or the fixed test station 22 are measured by the measuring device 25, and the measurement result is output to and displayed on the base station maintenance / monitor 23. In this way, the radio wave can be automatically measured in the radio base station.

In the present invention, when it is necessary to run the maintenance sequence for the maintenance and monitoring of the test fixed station and the mobile station, the operation sequence shown in FIG. 9 is executed. FIG. 9 shows an operation sequence for collecting mobile station information and rewriting memory information from the maintenance / monitoring desk. Collects information, B. Is each operation sequence of rewriting memory information.

Status information stored in the memory of the mobile station (for example, a call number written in ROM in the mobile device)
If you need to collect As shown in, the status information is sent to the fixed station for testing (22 in FIG. 2) or the mobile station with the specified number that needs to collect status information from the base station maintenance monitor (23 in FIG. 2) of the wireless base station. When a control signal indicating a transmission request is transmitted wirelessly, when the test fixed station or mobile station receives this, status information is collected and wirelessly notified as a status information transmission response. Note that the memory information can be read from and written to the test fixed station through the route passing through the test fixed station interface unit 21d.

B. Is for rewriting the ID information (call number of the mobile device) written in the memory of the test fixed station or the mobile station, which was conventionally performed from the control station (switching station). To do. First, the control signal of the memory information rewriting start request is wirelessly transmitted to the test fixed station or the mobile station (a in B. of FIG. 9).
The fixed test station (or mobile station) is normally guarded to prevent rewriting of memory information, but the guard is released when this control signal is received (same b). Next, when the rewriting information is sent from the base station maintenance and monitoring console (same as c), the fixed test station (or mobile station) rewrites the memory information (same as d) and displays the completion of rewriting on the base station maintenance and monitoring console. A rewrite response is notified (same as e). As a result, when the memory information rewriting end notification is transmitted from the base station maintenance and monitoring console (same f), when the test fixed station (or mobile station) receives this notification, the memory information rewriting prohibition guard is set (same g).

As a condition for rewriting the memory information, it is necessary that the wireless state is sufficiently good. Moreover, when rewriting the memory information, it is possible to check the discrepancy in the contents by using a checksum or the like.

It is also possible to perform a mobile radio test under the control of the base station controller (control station) using the fixed test station. Next, FIG. 10 shows a control sequence between the respective units at the time of call connection and performance measurement of the radio base station. 10 includes a call generation unit 23f, a connection control unit 23e, a transmission / reception interval measurement unit 23b, a base station modulation / demodulation device interface unit 23a, and a base station modulation / demodulation device 21 of a wireless base station. It is assumed that there are a plurality of mobile stations 1, mobile stations 2 ... Mobile station N as objects to be connected from the radio base station.

When the load generation section 23f of the base station maintenance / monitor 23 instructs the load test to start (a in FIG. 10) and instructs the mobile stations 1, 2 ... At regular intervals to generate a call,
The connection control unit 23e notifies the start of the load test to the transmission / reception interval measurement unit 2
3b is notified (same b) and measurement is started (same c). The connection control unit 23e transmits a control signal for connecting to each mobile station, which is instructed by the call generation unit 23f, to the base station modulation / demodulation device 21 at regular intervals (the same d). The generation interval (number of occurrences / time) of this control signal is the transmission / reception interval measurement unit 23b.
Is measured at. Upon receiving the call connection control signal from the base station maintenance monitor 23, the base station modulator / demodulator 21 wirelessly transmits the control signals to the designated mobile stations in order as shown in FIG. .

On the other hand, when a response control signal from each mobile station is wirelessly transmitted to the base station modulation / demodulation device 21 (same f), each control signal is transmitted to the base station maintenance monitor 23 (same g). . The interval of this control signal is the transmission / reception interval measuring unit
It is measured by 3b, received by the connection control unit 23e of the base station maintenance monitor 23, accumulated, and displayed on the display operation unit 23g.

In this way, the load test of the radio base station is performed by controlling the connection to each mobile station, and the call generator 23f issues an instruction to end the load test (h in FIG. 10) to control the connection. The unit 23e stops the generation of the control signal, and the transmission / reception interval measuring unit 23b receives the instruction to end the load test of the connection control unit 23e (i), and ends the measurement (j in FIG. 10).

The interval between transmission and reception of the control signal measured by the transmission / reception interval measuring unit 23b is the same as that of the radio base station 20.
CPU (provided in the common control unit 21e of the base station modem 21 and some other units) processing time (usage rate)
The load performance can be measured from the CPU occupation time because it increases in proportion to. This measurement result is CPU
The call generation unit 23f is notified of the usage rate (the same k). The value can be displayed on the display operation unit 23g.

The transmission / reception interval may be measured at regular intervals while performing the above load test. A monitor may be connected to the base station modulator / demodulator to display the load information at any time.

[0053]

According to the present invention, a test can be performed by the radio base station alone without connecting the exchange (control station) and the radio base station, and the state of the radio base station can be monitored in real time. You can

In addition, when the connection between the wireless base station and the switching center is not completed when the wireless base station is added, each wireless base station can perform a test independently of the switching center. Compared with the case of performing it, it is possible to improve work efficiency without the need for extra procedures and operations, and it is possible to achieve a great economical effect in that the usage fee of the line connected to the exchange is unnecessary. .

Regarding the performance measurement of the radio base station, the exchange station has been given a certain amount of load until now, and an approximate calculation has been calculated. However, according to the present invention, a performance measurement value by actual measurement can be obtained.

Further, according to the present invention, it is possible to collect information from the mobile station and rewrite the ID information at any timing even if the maintenance person does not have the target mobile station. This can contribute to speedy service and labor saving.

[Brief description of drawings]

FIG. 1 is a principle configuration diagram of the present invention.

FIG. 2 is a configuration diagram of an embodiment.

FIG. 3 is a diagram showing a sequence of a control signal monitoring operation.

FIG. 4 is a diagram showing a frame structure of each layer.

FIG. 5 is a diagram showing a sequence of control signals between a control station and a mobile station at the time of call connection.

FIG. 6 is a diagram showing a control flow of the separation / insertion unit.

FIG. 7 is a diagram showing a display example of results obtained by quality monitoring.

FIG. 8 is an explanatory diagram of local monitoring.

FIG. 9 is a diagram showing an operation sequence of information collection and memory information rewriting of a mobile station.

FIG. 10 is a diagram showing a control signal sequence between respective units during a load test.

FIG. 11 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 1 Radio Base Station 2 Base Station Modulator / Demodulator 3 Controller 4 Base Station Controller Interface 5 Separation / Insertion 6 Maintenance Monitor Desk Interface 7 Fixed Station Interface for Testing 8 Fixed Station for Testing 9 Base Station Maintenance Monitoring Desk 10 Maintenance Monitoring Part 11 Base station modulation / demodulation device interface part 12 Transmission / reception interval measurement part 13 Measuring instrument 14 Line 15 Base station control device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kumiko Murakami, 14-15 Higashishirashima-cho, Naka-ku, Hiroshima-shi, Hiroshima Prefecture, within Fujitsu China Communication Systems Limited (72) Mineyo Kuroda, Higashishirashima-cho, Naka-ku, Hiroshima-shi, Hiroshima 14-15 No. 15 in Fujitsu China Communication Systems Co., Ltd. (72) Inventor Naohiro Hiyama 14-15 No. 15 Higashishirashima-cho, Naka-ku, Hiroshima City, Hiroshima Prefecture (72) Inventor Iwasaki Gaku Hiroshima 14-15, Higashishirashima-cho, Naka-ku, Hiroshima-shi, Japan (72) Inventor Hiroshi Fujii 14-15, Higashishirashima-cho, Naka-ku, Hiroshima-shi, Hiroshima (72) Invention Kazuyoshi Kondo 14-15, Higashishirashima-cho, Naka-ku, Hiroshima-shi, Hiroshima Prefecture Within Fujitsu China Communication System Co., Ltd.

Claims (8)

[Claims] 1. A mobile communication comprising a base station control device installed in a control station and a base station modulation / demodulation device installed in a radio base station for controlling connection of a call to a mobile station under the control of the base station control device. In a radio base station maintenance and monitoring system in the system, a base station maintenance and monitoring console is provided in the radio base station, and a separation / insertion unit and a control signal for separating / inserting a control signal from / to the base station controller in the base station modulator / demodulator. A maintenance monitoring console interface unit for converting the lower layer of the base station and connecting to the base station maintenance monitoring console is provided, and in response to a monitoring request generated from the base station maintenance monitoring console, the base station modulation / demodulation device transmits necessary information from the control signal to the base station. A radio base station maintenance and monitoring system characterized by taking out and monitoring as maintenance and monitoring information on a station maintenance and monitoring table. 2. A control signal exchanged between the base station modulator / demodulator and a mobile station is converted into a lower layer and notified to the base station maintenance monitor, and the base station maintenance monitor transmits the base station modulator / demodulator. The radio base station maintenance and monitoring system according to claim 1, wherein the flow and contents of a control signal between the device and the mobile station are monitored. 3. The base station maintenance monitoring console is notified of the reception level and the reception error rate of the radio waves from the mobile station measured by the base station modulation and demodulation device, and the base station maintenance monitoring console notifies the base station modulation and demodulation device and the mobile station. The radio base station maintenance and monitoring system according to claim 1, which monitors and measures the propagation quality. 4. The state information and operation information inside the base station modulator / demodulator are notified to a base station maintenance monitor, and the base station maintenance monitor monitors the operating state of the base station modulator / demodulator. 1. The radio base station maintenance and monitoring system according to 1. 5. Control of the fixed test station by supplying a control signal from the base station maintenance monitor to the fixed test station connected to the radio base station via a base station modulator / demodulator. The radio base station maintenance and monitoring system according to claim 1, wherein the radio base station maintenance and monitoring system performs the test. 6. The control of collecting the status information of the mobile station, rewriting the ID information and the like is performed by a radio signal transmitted from the base station modulator / demodulator under the control of the base station maintenance monitor. 1. The radio base station maintenance and monitoring system according to 1. 7. The call connection control unit is provided in the base station maintenance and monitoring console, and the call connection with the mobile station is performed under the control of the base station maintenance and monitoring console. Radio base station maintenance monitoring system. 8. The base station maintenance and monitoring console is provided with means for measuring a control signal transmission / reception interval between the base station modulator / demodulator and the base station maintenance and monitoring console, and means for generating a large number of calls in a short time, The load performance of the base station modulator / demodulator is measured by measuring the interval of control signal transfer between the base station modulator / demodulator and the base station maintenance monitor when the connection control of the call from the base station maintenance monitor is performed. The radio base station maintenance and monitoring system according to claim 7, wherein