JP2002353911A - Radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable speedy recovery to normal communication, while suppressing increase in maintenance costs due to exchanging of a non-abnormal outdoor device, by making clear the separation of an abnormal spot, such as in a wireless section, in the outdoor device or between the outdoor devices. SOLUTION: An LED display part 227 of an IDU 220 displays the presence/ absence of RF incoming carrier from an ODU 210 and whether the ODU 210 is in an alarm state by using an LED. An LED display part 216 of the ODU 210 displays whether a receiving level is abnormal and whether a transmitting level is abnormal by using an LED. When abnormality occurs, it can be determined as to which spot among the wireless section, the ODU 210, a cable 230 between the ODU 210 and the IDU 220 and the IDU 220 is abnormal, while finely separating these spots from the combination of the respective LED display patterns of the LED display part 217 and the LED display part 227.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless device comprising an indoor device installed indoors and an outdoor device installed outdoors, and more particularly, to the ability to more finely isolate the location of a failure when a communication failure occurs. The present invention relates to an improvement in state display control of an indoor device and an outdoor device for making the state display control.

[0002]

2. Description of the Related Art For example, as a system form for using a communication service by accessing a communication network of a communication carrier from a subscriber terminal, a radio base station connected to an exchange or the like of the communication carrier is used. A plurality of subscriber radio stations are arranged opposite to each other to provide a radio section for performing point-to-multipoint (P-MP) communication between the base station and each subscriber radio station;
2. Description of the Related Art There is known a wireless access system in which a subscriber terminal connected to a subscriber wireless station can wirelessly access a communication network of a communication carrier.

A subscriber radio station used in this type of system includes an indoor device and an outdoor device. The indoor device is installed in a building, for example, and the outdoor device is installed on the roof of the building. There is an indoor device that operates by connecting a subscriber terminal such as a personal computer to an indoor device.

In such a conventional subscriber radio station, an abnormality display LED is provided in an indoor unit, and the corresponding LED is driven according to the presence or absence of data, a failure of the unit, and the like, thereby performing an abnormality display. Was.

According to such a conventional subscriber radio station, an abnormal state is determined by looking only at a display pattern of an LED provided in an indoor unit, so that a failure in a wireless section, a failure of an outdoor unit, an indoor unit and an outdoor unit occur. It was difficult to determine which of the factors, such as a faulty connection cable between them, caused the abnormal status display.

For this reason, conventionally, when an abnormality is displayed on the LED of the indoor device, it is impossible to judge the failure even in the wireless section (on the communication carrier side). May happen,
The danger of soaring maintenance costs was high.

[0007] It is also conceivable to go to an outdoor device after the LED of the indoor device has an abnormal display and check the state of the outdoor device in more detail.

[0008] However, the outdoor device is often installed at a high place, and when a failure in a wireless section or equipment failure occurs after the installation, it is very difficult to confirm the state of the outdoor device.

[0009]

As described above, in a conventional wireless device including an indoor device and an outdoor device typified by a subscriber wireless station of a wireless access system, when a communication failure occurs, the indoor Since the data was determined only based on the display of the LED for error display provided on the device, the presence or absence of data and the failure of the device were determined. It is difficult to determine whether the location is abnormal, and there is a problem in that maintenance costs are wasted by replacing an outdoor device that has not failed, and return to normal communication is delayed.

[0010] The present invention eliminates the above-mentioned problems and provides a radio section,
A wireless device that clarifies the separation of abnormalities between outdoor equipment, outdoor equipment and outdoor equipment, etc., suppresses the increase in maintenance costs due to replacing outdoor equipment that is not abnormal, and can quickly return to normal communication. The purpose is to provide.

[0011]

In order to achieve the above object, the invention according to claim 1 comprises an indoor device installed indoors and an outdoor device installed outdoors, and a wireless function of the outdoor device. In a wireless device that communicates with a wireless base station facing the outdoor device, the indoor device is in a state as to whether a predetermined signal is received from the outdoor device,
And a display means for displaying whether or not the outdoor device is abnormal, and wherein the outdoor device has a display for displaying whether the reception level is abnormal or not, and a status for displaying whether or not the transmission level is abnormal. Means is provided.

According to a second aspect of the present invention, in the first aspect of the present invention, the display means of the outdoor unit is configured to perform a multi-wave radio wave transmission from another wireless device with which the wireless base station performs one-to-many communication. The apparatus further comprises means for displaying an abnormal state of the path waveform distortion.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the display means includes an LED which is lit, turned off or blinks so as to identify each of the states.

[0014]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing an overall configuration of a radio access system according to the present invention. In FIG. 1, a cell A and a cell B each represent one service area of the entire service area of the present system. In the cell A, one base station 100A and a plurality of subscriber radio stations 200
-1, 200-2, 200-3, and 200-4.

The base station 100A and each subscriber radio station 200-
1, 200-2, 200-3, and 200-4, respectively, uplink (from subscriber radio station 200 to base station 100
Direction) and downlink (from base station 100 to subscriber radio station 20)
0 direction), and the base station 100A and each of the subscriber's wireless stations 200-1, 200-2,
P-MP communication between 00-3 and 200-4 is performed.

Similarly, in cell B, one base station 10
OB and a plurality of subscriber wireless stations 200-11, 200-1
2,200-13,200-14 are located, and base station 1
00B and each subscriber's radio station 200-11, 200-12,
P-MP communication using uplink and downlink is performed between 200-13 and 200-14, respectively.

The dotted lines separating the cells A and B indicate the boundaries of the sectors set in the cells A and B, respectively. In this system, cell A and cell B are divided into four sectors, sector 1 to sector 4, respectively.
For each sector, frequencies used for uplink and downlink are allocated.

In the present system, the base station 100
A and 100B are connected to an ATM switch 400 in a public network 600 via a communication line 300.
The ATM switch 400 is an ATM (asynchronous transfer mode)
It has a switching function corresponding to the transmission method.

A network management device 500 is connected to the ATM switch 400. Network management device 5
00 performs data management with the base station 100 and the subscriber wireless station 200 in each of the cells A and B using the switching function of the ATM switch 400, thereby managing and controlling the operation of each of the cells A and B. Is what you do.

Furthermore, the public network 600 has an ATM
Network 610, I-dedicated line network 620, communication network 630 such as the Internet or an intranet, frame relay network 64
0, N-ISDN650 and the like.

In at least one of these networks, a switching center (not shown) of a communication carrier is arranged, and the switching center manages data corresponding to various services provided by the communication carrier. It is connected to a system (hereinafter referred to as a service system).

A subscriber to a communication service operated by a communication carrier can receive a signal from a subscriber terminal 230 (to be described later).
The communication service can be used by accessing the service system of the telecommunications carrier through 00.

Although FIG. 1 discloses only the cell A and the cell B, in the actual system configuration, in addition to the cells A and B, the same mode (one base station 100 and a plurality of There is a plurality of cells including the subscriber wireless station 200 that performs P-MP communication), and all of the cells cover the entire service providing area described above. Also, there is not one subscriber radio station 200 arranged in each sector of each cell but a plurality of subscriber radio stations 200 as shown in the figure.

FIG. 2 shows a base station 1 of the system in FIG.
FIG. 2 is a diagram illustrating a schematic configuration of a subscriber station 200 and a subscriber wireless station 200.

In FIG. 2, a base station 100 includes an indoor unit (IDU: INDOOR UNIT) 110 and an outdoor unit (ODU: O).
UTDOOR UNIT) 120.

The IDU 110 has an ODU I / F: ODU Interface having an interface function with the ODU 120.
Unit) 111, an AIU (Ai) having an interface function between the ODU I / F 111 and the ATM switch 400.
r Interface Unit) 112 and a control unit 113 for controlling the operation of the entire IDU 110 are provided.

In the base station 100, the ODU 120 is provided individually for each of the sectors 1, 2, 3, and 4. In this example, four ODUs 120a, 120b, 120c, and 120d are provided.
Is realized by:

In the IDU 110 of the base station 100, the ODU I / F 111 is connected to each of the sectors 1, 2,.
ODU 120a, 120b, 120c, 12 for every 3, 4
Four ODU I / F111 corresponding to each 0d
a, 111b, 111c, and 111d.

On the other hand, the subscriber's wireless station 200 is disposed for each of the sectors 1, 2, 3, and 4, and each outdoor unit (ODU) 210 performs wireless communication in opposition to the ODU 120 of the corresponding sector; It comprises an indoor unit (IDU) 220 having an interface function between the ODU 210 and the subscriber terminal 240 installed in the subscriber's house.

As the subscriber terminal 240, various communication terminals such as a 10Base-T terminal (a terminal such as a personal computer realized by a 10Base-T connection method) and an ISDN terminal are used.

The radio section between the ODU 120 of the base station 100 and the ODU 210 of the subscriber radio station 200 is, for example, 26
It is operated by a TDMA (Time Division Multiple Access) -FDD (Frequency Division Operation) system in the GHz band.

In the configuration shown in FIG.
The operation when accessing the service system of a communication carrier from 0 will be described.

In this case, when a predetermined access operation is performed on the subscriber terminal 240, an access request signal corresponding to the operation is generated and input to the corresponding subscriber wireless station 200.

The subscriber wireless station 200 transmits an access request signal input from the subscriber wireless station 200 connected to the own station to the above wireless section via the IDU 220 and the ODU 210.

The subscriber's wireless station 200 sandwiches this wireless section.
, The access request signal transmitted from the subscriber wireless station 200 is received by the ODU 120, and the ODU I / F 11 corresponding to the ODU 120 is received.
1. Transfer to the control unit 113 via the AIU 112.

The control unit 113 controls the connection of the subscriber terminal 240 to the service system of the communication carrier via the AIU 112 based on an access request signal from the subscriber terminal 240.

After the subscriber terminal 240 is connected to the service system of the communication carrier, the data from the service system is transmitted to the AIU 112, ODU of the base station 100.
After being transmitted to the wireless section via the I / F 111 and the ODU 120 and received by the ODU 210 at the opposite subscriber wireless station 200, the subscriber terminal 240 via the IDU 220
Is transmitted to

On the contrary, the data transmitted from the subscriber terminal 240 is transmitted to the wireless section via the IDU 220 and ODU 210 of the corresponding subscriber wireless station 200, and the ODU 120 transmits the data to the opposite base station 100. After being received, it is transmitted to the service system via the ODU I / F 111 and the AIU 112.

Next, the configuration and operation of the subscriber station 200 will be described.

FIG. 3 shows a subscriber radio station 20 according to the present invention.
FIG. 3 is a block diagram showing a detailed configuration of the ０0 ’.

In the subscriber radio station 200, the IDU 22
0 and ODU 210 are respectively installed indoors and outdoors, for example, at the subscriber's house, and have splitters 2 having functions to be described later.
They are interconnected by a cable 230 via 21 and 211.

Here, the IDU 22 of the subscriber radio station 200
0 denotes a splitter 221 for superimposing / separating a main signal (communication data between the subscriber terminal 240 and the service system of the communication carrier) and a control signal transmitted / received to / from the ODU 210;
A modulation unit 222 that performs modulation processing of an upstream main signal, a demodulation unit 223 that performs demodulation processing of a downstream main signal, a switching circuit 224 that performs switching between an upstream main signal and a downstream main signal, and the entire IDU 220. In addition to the operation control, the transfer control of the main signal and the control signal to and from the ODU 210, the ODU 210
The control unit 226 and the control unit 226 detect whether an RF (intermediate frequency) signal is received from the OLT 210 and whether the ODU 210 is abnormal, and control to display the detection result on the LED display unit 227. A light emitting diode (L
ED).

In the structure of the control section 226, R
The F signal detection unit 2261 corresponds to the above-described RF detection function, and detects, through the demodulation unit 223, the presence or absence of an RF signal (downlink carrier) transmitted from the ODU 210.

The ODU alarm detecting unit 2262 corresponds to the above-described ODU abnormality detecting function, and
Sends a polling signal for an ODU abnormality diagnosis to the ODU 210 in response to the polling signal.
And an ODU abnormality is detected according to the response signal.

The display control unit 2263 corresponds to the LED drive function described above, and includes an RF signal detection unit 2261
In order to display the detection result of the DU alarm detection unit 2262,
The LED of the LED display unit 227 is turned on, turned off, or blinked in accordance with the predefined definition contents (see FIG. 5).

In this embodiment, the LE of the IDU 220
For example, as shown in FIG. 4B, the D display unit 227 includes an RF display LED (green) 31 that emits green light and an ODU alarm display LED (orange) 32 that emits orange light. .

On the other hand, the ODU 210 includes a splitter 211 for superimposing / separating a main signal and a control signal transmitted / received to / from the IDU 220, a transmission unit 212 for performing processing of transmitting an upstream main signal to the opposite base station 100, A receiving unit 213 that performs reception processing of a downlink main signal from the station 100, an antenna duplexer 214 that realizes sharing of the antenna 215 between the transmitting unit 212 and the receiving unit 213, an operation control of the entire ODU, and a connection between the IDU 220 In addition to the main signal and control signal transfer control, whether the reception level at the reception unit 213 is abnormal, whether the distortion of the received waveform is abnormal, and the transmission unit 212
Control unit 2 that determines whether or not the transmission level is abnormal, and displays these determination results on the LED display unit 217.
16, an LED display unit 217 provided with an LED that is turned on, off, or blinks so that the determination result of the control unit 216 can be identified.

In the configuration of the control section 216, the reception level / waveform distortion measurement section 2161 forms a part of the above-described reception level / waveform distortion determination function. The reception level of the main signal in the down direction from the receiver and the distortion of the reception waveform are determined by the
Measure through.

The received waveform distortion is caused by the opposite base station 1.
The radio wave from 00 is reflected on a building or the like, and
It is brought by reaching zero.

The transmission level measuring section 2162 forms a part of the above-described transmission level determination function, and
0, the transmission level of the upstream main signal to be transmitted to the transmission unit 2
Measure through 12.

The display control unit 2163 corresponds to the above-described LED driving function, and includes a reception level / waveform distortion measurement unit 2.
161, in order to display the determination result based on the measurement result of the transmission level measurement unit 2162, the definition contents defined in advance (FIG.
LED), the LED of the LED display unit 217 is turned on, turned off, or blinked.

In this embodiment, the LE of the ODU 210 is
For example, as shown in FIG. 4A, the D display unit 217 includes a reception level normal display LED (green) 11, which emits green light.
LED for receiving level error display (orange) with orange emission color 1
2. LED for indicating normal transmission level with green emission color (green)
21. LED for displaying transmission level abnormality with orange emission color
(Orange) 22.

As described above, ODU21
0 is installed outdoors, but the LED display 217
Even after the DU 210 is installed, each LED 11, 12, 2
It is desirable to provide them in positions where they can be seen from the ground.

In the subscriber radio station 200 having the above configuration, the communication operation after the subscriber terminal 240 connected to the IDU 220 is connected to the service system of the communication carrier by the above-described access control operation is performed as follows. You.

First, a signal (main signal) output from subscriber terminal 240 is input to modulation section 222 through switching circuit 224 of IDU 220. The modulator 222 modulates the signal, further converts the signal to an intermediate frequency (IF), and sends the signal to the ODU 210 via the splitter 221.

In the ODU 210, the IF signal sent from the IDU 220 is transmitted via the splitter 211 to the transmitting unit 2.
12 and a predetermined radio frequency (R
After frequency conversion to F), the signal is transmitted to the opposite base station 100 via the antenna duplexer 214 and the antenna 215.

The ODU 210 is connected to the base station 1
00 is received by the antenna 215 (a signal from the service system of the communication carrier)
The data is taken into the receiving unit 213 through the antenna duplexer 214.

After the receiving section 213 converts the frequency of the received signal into an IF signal, the IDU is transmitted through the splitter 211.
220.

Further, in the IDU 220, the IF signal sent from the ODU 210 is taken into the demodulation section 223 via the splitter 221, and the IF signal is demodulated to the original data. I do.

During the communication, the control unit 216 of the ODU 210 uses the reception level / waveform distortion measurement unit 2161 to control the main signal passing through the reception unit 213 (main signal on the downlink communication path between the base station 100 and the subscriber terminal 240). Measure the received level and waveform distortion.

The control unit 216 uses the transmission level measuring unit 2161 to transmit the main signal (base station 1) passing through the transmitting unit 212.
Then, the transmission level of the main signal (upstream communication path) between P.00 and the subscriber terminal 240 is measured.

Next, control section 216 determines whether the reception level is normal or abnormal by comparing the measured reception level with a preset reception level determination threshold value. Similarly, the display control unit 216 determines whether the transmission level is normal or abnormal by comparing the measured transmission level with a preset transmission level determination threshold.

The control unit 216 further includes a display control unit 216.
3 are activated, and the corresponding LEDs 11, 12, 21, 22 of the LED display unit 217 are determined according to the above determination results such as whether the reception level is abnormal and whether the transmission level is abnormal.
Is performed.

On the other hand, in the IDU 220, the control unit 22
6 is a demodulation unit 223 using the RF signal detection unit 2261.
The presence or absence of an RF carrier (downlink carrier sent from ODU 210) is detected. Then, according to the presence or absence of the RF carrier, the corresponding LED of the LED display unit 227 is displayed.
31 is controlled.

The control unit 226 activates the ODU alarm detection unit 2261 to send a polling signal for ODU abnormality diagnosis to the ODU 210, and a response signal sent from the ODU 210 to this polling signal. To receive. Then, from this response signal, ODU
It is determined whether or not 210 is in an abnormal state, and drive control of the corresponding LED 32 of the LED display unit 227 is performed according to the determination result.

Here, upon receiving the polling signal sent from the IDU 220, the ODU 210 diagnoses whether or not the own device is in an abnormal state, and transmits the diagnosis result to the IDU 220 as the response signal. It has.

The above-described ODU 210 and IDU 220
LED drive control in ODU220 and IDU2
This is performed in accordance with an LED display pattern defined in advance corresponding to each state to be monitored in 10.

FIG. 5 shows a subscriber radio station 200 of this embodiment.
FIG. 8 is a table showing operation states related to an operation state display function of the ODU 220 and the IDU 210 and the definition contents of LED display patterns.

According to the table, regarding the relationship between the reception level state related to the reception level display of the ODU 210 and the LED display pattern, the turning off of the LED (green) is power off,
LED (green) lighting is normal for reception level / waveform distortion, LED
Lighting of (orange) is defined as indicating a reception level abnormality, and blinking of an LED (orange) is defined as indicating a reception waveform distortion abnormality.

Similarly, regarding the relationship between the transmission level state related to the transmission level display of the ODU 210 and the LED display pattern, turning off the LED (green) is power off or no input, turning on the LED (green) is normal transmission level, LED
Lighting of (orange) is defined to indicate a transmission level abnormality.

Further, R related to the RF display of IDU 220
For the relationship between the F carrier and the LED display pattern, see L
It is defined that turning off the ED (green) indicates no down carrier or power off, and turning on the LED (green) indicates the presence of the down carrier.

Similarly, with respect to the relationship between the ODU alarm relating to the ODU abnormality display of the IDU 220 and the LED display pattern, it is defined that turning off the LED (orange) is normal and turning on the LED (orange) indicates the ODU alarm. .

In the LED drive control by the control unit 216 of the ODU 210 described above, the display control unit 2163
According to the definition in the above table (FIG. 5), for the determination result that the reception level is normal (above the threshold) and the reception waveform distortion is also normal, the reception level normal display LED (green ) 11 is turned on, and in response to the judgment result that the reception level is abnormal (below the threshold), the reception level abnormality display LED (orange) 12 is turned on, and the judgment result that the reception waveform distortion is abnormal is given. For the same LED (orange)
12 flashes.

Further, the display control unit 2163 responds to the determination result that the transmission level level is normal (above the threshold) according to the definition contents of the above-mentioned table (FIG. 5), and determines whether the transmission level is normal in the LED display unit 217. Display LED (green) 21
Is turned on, and a transmission level abnormality display LED (orange) is provided for the determination result that the transmission level is abnormal (below the threshold).
22 is turned on.

Similarly, the control unit 2 of the IDU 220
26, the display control unit 226
3 turns off the RF display LED (green) 31 in the LED display unit 227 for the determination of no RF down carrier according to the definition content of the above table (FIG. 5), and responds to the determination of the presence of the ODU alarm. Is an ODU alarm display LED
(Orange) 32 is turned on.

On the other hand, the user of the subscriber radio station knows the definition contents of the table shown in FIG. 5 in advance, so that the LDU related to the above-mentioned LED drive control in ODU 210 and IDU 220 can be used.
The operating states of the ODU 210 and the IDU 220 can be determined from the LED display patterns of the ED display units 217 and 227 as follows.

For example, in the ODU 210, the power is off when the LED (green) 11 for normal reception level indication is off, and when the LED (green) 11 is on, both the reception level and the waveform distortion are normal. You can see that there is. If the reception level abnormality display LED (orange) 12 is lit, it is known that the reception level is abnormal.
If (orange) 12 is blinking, it is understood that the received waveform is abnormal.

If the transmission level normal display LED (green) 21 of the ODU 210 is off, it is known that the power is off or there is no input. If the LED (green) 21 is on, the transmission level is low. It turns out that it is normal. If the transmission level abnormality display LED (orange) 22 is lit, it is understood that the transmission level is abnormal.

Similarly, the RF display LED of the IDU 220
When the (green) 31 is off, it is known that there is no down carrier or the power is off. When the LED (green) 31 is on, it is known that there is a down carrier.

When the ODU alarm display LED (orange) 32 of the IDU 220 is turned off, it is understood that the LED is normal. When the LED (orange) 32 is turned on, the ODU alarm state, that is, the ODU 210 is abnormal. You can see that.

In subscriber radio station 200 having such a configuration, IDU 220 is installed indoors, and ODU 210 is installed outdoors. For this reason, when an abnormality occurs in the subscriber wireless station 200, the user who is indoors
Looking at the LED display pattern of the display unit 227, the abnormality is often noticed.

Here, for example, in the LED display section 227 of the IDU 220, an ODU alarm display LED
If (orange) 32 is lit, it means that only the ODU 210 is abnormal or the cable 2 between the ODU 210 and the IDU 220
It cannot be determined whether the abnormality is 30 or an abnormality in the wireless section with the base station 100. This is the IDU
At 220, the RF display LED (green) 3 to be installed
The same is true even when the display pattern of No. 1 is also viewed.

However, the subscriber radio station 20 of the present invention
In 0, not only IDU220 but also ODU210 is LED
The display unit 217 is provided. Moreover, L of ODU210
The ED display unit 217 is provided at a position that can be confirmed from the ground, and the user can use the LE display of the LED display unit 217 without risking going to the place where the ODU 210 is installed.
D display pattern can be confirmed.

In the present invention, the LE of the IDU 220 is
The LED display pattern on the D display unit 227 and the ODU 21
From the combination of the LED display patterns in the 0 LED display unit 217, the failure location can be more finely separated and identified.

FIG. 6 is a table showing the correspondence between combinations of LED display patterns of the IDU 220 and the ODU 210 in the subscriber station 200 according to the present invention and the locations of failures.

According to this table, IDU 220 and OD
If there is no abnormality in both of U210, IDU220 indicates L
ODU alarm display LED on the ED display 227 (orange)
32 is turned off and the RF display LED (green) 31 is turned on, while in the ODU 210, both the reception level normal display LED (green) 11 and the transmission level normal display LED (green) 21 of the LED display unit 217 are turned on. (The pattern of number 1 in the table).

In the IDU 220, the ODU alarm display LED (orange) 32 is turned on and the RF display L
When the LED display unit 217 of the ODU 210 is viewed while the ED (green) 31 is on, the reception level normal display LED (green) 11 is on and the transmission level normal display LED (green) 21 is on. If it is lit (pattern No. 2 in the table), it can be determined that the failure location is abnormal due to no polling response from the ODU 210.

In the IDU 220, the ODU alarm display LED (orange) 32 is turned off and the RF display L
When the LED display section 217 of the ODU 210 is viewed while the ED (green) 31 is lit, the LED (green) 11 for normal reception level display is lit and the LED (orange) 22 for transmission level abnormality display is illuminated. If it is lit (the pattern of the number 3 in the table), it is understood that the ODU 210 is faulty.

Similarly, in the IDU 220, while the ODU alarm display LED (orange) 32 is on and the RF display LED (green) 31 is on, the ODU 210
If the LED (green) 11 for displaying a normal reception level is lit and the LED (orange) 22 for displaying a transmission level abnormality is lit when looking at the LED display section 217 of No. 4 in FIG.
It can be seen that the ODU 210 has failed.

In the IDU 220, the ODU alarm display LED (orange) 32 is turned off and the RF display L
When the LED display unit 217 of the ODU 210 is viewed while the ED (green) 31 is on, the reception level normal display LED (green) 11 is on and the transmission level normal display LED (green) 21 is on. If the light is off (pattern number 5 in the table), it means that either the IDU 220 or the ODU 210 has failed (IDU 220 to ODU 210).
System abnormalities).

In the IDU 220, the ODU alarm display LED (orange) 32 is turned on and the RF display L
When the LED display unit 217 of the ODU 210 is viewed while the ED (green) 31 is on, the reception level normal display LED (green) 11 is on and the transmission level normal display LED (green) 21 is on. If the light is turned off (pattern No. 6 in the table), it is understood that the ODU 210 has failed.

In the IDU 220, an ODU alarm display LED (orange) 32 and an RF display LED
When the LED display unit 217 of the ODU 210 is viewed in a state in which both the (green) 31 and the green LED 31 are turned off, the LED (green) 11 for displaying the normal reception level is turned on and the LED (green) 21 for displaying the normal transmission level is turned on. If the light is off (pattern number 7 in the table), it means that either the IDU 220 or the ODU 210 has failed (IDU 220 to ODU 210
System abnormalities).

In the IDU 220, the ODU alarm display LED (orange) 32 is turned on and the RF display L
When the LED display unit 217 of the ODU 210 is viewed with the ED (green) 31 turned off, the reception level normal display LED (green) 11 is turned on, and the transmission level normal display LED (green) 21 is turned on. If the light is off (the pattern of the number 8 in the table), it is understood that the cable 230 between the ODU 210 and the IDU 220 is abnormal.

In the IDU 220, an ODU alarm display LED (orange) 32 and an RF display LED
When the LED display unit 217 of the ODU 210 is viewed in a state where both the (green) 31 are turned off, the LED (orange) 12 for displaying an abnormal reception level is lit and the LED (green) 21 for displaying a normal transmission level is turned on. If the light is off (pattern number 9 in the table), the base station 100 with which the ODU 210 is facing
Abnormalities in the wireless section between (a failure of the base station 100, interference,
Antenna or the like).

In the IDU 220, the ODU alarm display LED (orange) 32 is turned on and the RF display L
When the LED display unit 217 of the ODU 210 is viewed in a state where the ED (green) 31 is turned off, the LED (orange) 12 for displaying an abnormal reception level is turned on, and the LED (green) 21 for displaying a normal transmission level is turned on. If it is off (number 10 in the table)
Pattern), wireless section, ODU210, cable 23
It can be seen that any one of 0 is abnormal.

In the IDU 220, the ODU alarm display LED (orange) 32 is turned on and the RF display L
When the LED display unit 217 of the ODU 210 is viewed with the ED (green) 31 turned off, the LED (orange) 11 for normal reception level display and the LED for normal transmission level display are displayed.
(Green) If both 21 are turned off (pattern 11 in the table), it is understood that the cable 230 between the ODU 210 and the IDU 220 is abnormal.

As described above, the subscriber radio station 200 of the present invention
Then, in addition to the LED display pattern on the LED display unit 227 of the IDU 220, the LED display unit 217 of the ODU 210
ODU2 while taking into account the LED display pattern in
In this case, it is possible to specify a more detailed failure location such as an abnormality of 10, a failure of the cable 230 between the ODU 210 and the IDU 220, and an abnormality of a wireless section.

Thus, even when an ODU alarm occurs in the IDU 220, for example, if it is determined that the cable 230 is abnormal by looking at the display pattern on the LED display unit 217 of the ODU 210, the normal ODU 2
10 does not need to be replaced, and a rise in maintenance costs can be suppressed.

Further, according to the present invention, it is possible to determine the abnormality in the wireless section by separating the abnormality from the ODU 210 or the cable 230, and when the determination is reached, request the communication carrier to inspect the base station 100 and the like. Immediately, the abnormality in the wireless section can be resolved, and the normal communication using the subscriber terminal 2400 can be promptly restored.

The present invention is not limited to the embodiment described above and shown in the drawings, but can be implemented by appropriately modifying it without departing from the scope of the invention.

For example, in the above embodiment, ODU2
Regarding the ten LED display units 217, the reception level and the transmission level are each configured to use two green LEDs and two orange LEDs that indicate normal and abnormal, respectively. In addition, a configuration using a total of three LEDs that turns on the orange LED only when the transmission level and the reception level are abnormal may be used. In addition, various colors can be applied to the LED color.
If the same number of display patterns as in the case of using ED is satisfied, L
Display means other than the ED can also be used.

[0103]

As described above, according to the present invention,
The indoor device is provided with display means for displaying whether or not a predetermined signal is received from the outdoor device, and whether or not the outdoor device is abnormal. Is provided with a display means for displaying whether or not there is an abnormality, when an abnormality occurs, the user, from the combination of each display pattern of the display means of the indoor device and the display means of the outdoor device, the wireless section, outdoor device, outdoor device It is possible to finely cut and determine which of the cable between the indoor devices and the indoor device is abnormal. By clarifying the separation of the abnormal part, it is possible to avoid a situation in which the wireless device, the cable between the outdoor device and the indoor device, etc. is abnormal and the outdoor device is replaced when the outdoor device is normal, and the maintenance cost is reduced. In addition to the reduction and prevention of danger, in the event of an abnormality in the wireless section, it is possible to quickly return to normal communication by contacting a communication carrier to perform maintenance work on the wireless base station.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of a wireless access system according to the present invention.

FIG. 2 is a diagram showing a schematic configuration of a base station and a subscriber radio station.

FIG. 3 is a block diagram showing a detailed configuration of a subscriber wireless station.

FIG. 4 is a conceptual diagram showing an LED arrangement structure of each LED display unit of an IDU and an ODU.

FIG. 5 is a table showing operation states of ODUs and IDUs and definition contents of LED display patterns.

FIG. 6 is a table showing the correspondence between combinations of LED displays of IDU and ODU and failure locations.

[Explanation of symbols]

100, 100A, 100B Base station 110 Indoor unit (IDU: INDOOR UNIT) 111, 111a, 111b, 111c, 111d O
DU I / F (ODU Interface Unit) 112 AIU (Air Interface Unit) 113 Control unit 120, 120a, 120b, 120c, 120d Outdoor unit (ODU: OUTDOOR UNIT) 200, 200-1, 200-2, 200-3, 200
-4, 200-11, 200-12, 200-13, 2
00-14 subscriber radio station 210 outdoor unit (ODU) 211 splitter 212 transmission unit 213 reception unit 214 antenna duplexer 215 antenna 216 control unit 2161 reception level / waveform distortion measurement unit 2162 transmission level measurement unit 2163 display control unit 217 LED display Unit 220 Indoor unit (IDU) 221 Splitter 222 Modulation unit 223 Demodulation unit 224 Switching circuit power supply unit 226 Control unit 2261 RF signal detection unit 2262 ODU alarm detection unit 2263 Display control unit 227 LED display unit LED11 LED11 LED for reception level normal display (green) LED12 LED for receiving level abnormality display (orange) LED21 LED for normal display of transmission level (green) LED22 LED for transmission level abnormality display (orange) LED31 LED for RF display (green) LED32 ODU alarm Display LED (orange) 230 Cable 240 Subscriber terminal 300 Communication line 400 ATM (asynchronous exchange mode) switch 500 Network management device 600 Public network 610 ATM network 620 I-dedicated line network 630 Communication network such as Internet or intranet 640 Frame relay Network 650 N-ISDN

Claims (3)

[Claims] 1. A wireless device that includes an indoor device installed indoors and an outdoor device installed outdoors and communicates with a wireless base station facing the outdoor device by a wireless function of the outdoor device. The device includes a display unit that displays a state as to whether or not a predetermined signal is received from the outdoor device, and a state as to whether the outdoor device is abnormal. And a display unit for displaying a state of whether the transmission level is abnormal and a state of whether the transmission level is abnormal. 2. The display means of the outdoor apparatus further comprises means for displaying an abnormal state of multipath waveform distortion due to a radio wave from another wireless device with which the wireless base station performs one-to-many communication. The wireless device according to claim 1, wherein: 3. The wireless device according to claim 1, wherein said display means comprises an LED that is turned on, turned off, or blinks so that each of said states can be identified.