JP2002218525A - Wireless unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless unit the operating state of which relating to the main signal can be set by software so as to enhance job efficiency in the case of setting revision thereby reducing setting errors. SOLUTION: An IDU 130 in wireless units 120 (120-1, 120-2) can connect its external input output section 131 to a maintenance terminal 150. An ODU hard drive 132 of the IDU 130 automatically sets a unit operating state (transmission/reception frequency, transmission output and transmission state or the like) relating to transmission/reception of the main signal of the wireless unit 120 to an ODU wireless section 142 of the ODU 140 in cooperation with an ODU hard drive 143 in the ODU 140 on the basis of a setting control signal in response to the setting operation in the maintenance terminal 150 connected to an external input output section 131. After the end of setting of the unit operating state, a flash memory (EEPROM) 134 stores the setting contents.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio device used for a node device of a subscriber radio system in which a transmission path between opposing node devices is realized by a radio line, and more particularly, to a main signal of the radio device. The present invention relates to an improvement in a method for setting a related device operation state.

[0002]

2. Description of the Related Art In a communication system in which a plurality of node devices are connected by a transmission line and each node device communicates with each other via the transmission line, the transmission line is generally configured by an optical cable or the like. In recent years, some transmission lines have been realized by wireless lines.

In the case of this type of wireless communication system, each node device is provided with a wireless device, and two-way wireless communication is performed between the opposing node devices by the wireless device of each node device, thereby forming a plurality of nodes. Communication via the device is realized.

Conventionally, a radio device provided in a node device of this type of system has a device operation state related to transmission and reception of a main signal of the radio device, for example, a transmission frequency and a reception frequency, a transmission output, a transmission state (transmission or transmission stop). ) And the like are generally set in hardware using a bit switch or the like.

[0005] For this reason, when the setting of the operation state of the device related to the main signal of the wireless device is changed, the setting operation is complicated and the setting time is long, so that the work efficiency is low and there is a danger of causing a setting error. The sex was also very high.

[0006]

As described above, a conventional wireless device used for a node device such as a subscriber wireless system has a configuration in which a device operation state related to a main signal of the wireless device is set by hardware. Therefore, there is a problem in that the work efficiency when changing the setting of the apparatus operation state is low, and the risk of a setting error is high.

[0007] The present invention solves the above-mentioned problems, and can set a device operation state relating to a main signal of a wireless device as software from a maintenance terminal without depending on hardware setting. An object of the present invention is to provide a wireless device that can reduce errors.

[0008]

In order to achieve the above object, the invention according to claim 1 is used for the node device of a subscriber radio system in which a transmission path between opposing node devices is realized by a radio line. In the wireless device, based on external input / output means for controlling an input / output interface with an external terminal, and a setting operation input from a maintenance terminal connected to the external input / output means, a device operation state related to a main signal of the wireless device is determined. Setting control means for automatically setting the main signal, wherein an operation state of the apparatus relating to the main signal can be controlled by an operation from the maintenance terminal.

According to a second aspect of the present invention, in the first aspect of the present invention, there is provided a flash memory for storing setting contents of the apparatus operation state by the setting control means,
When the power of the wireless device is turned on, the setting control means sets the device operation state for the wireless unit according to the setting content read from the flash memory.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the device operation state includes a transmission frequency and a reception frequency of the main signal, a transmission output, and a transmission state of any of transmission or transmission stop. The transmission state mode includes a transmission state maintaining mode in which the transmission state was set before the power was turned off when the power is turned on, and a transmission state forced stop mode in which the transmission is forcibly stopped when the power is turned on. And

[0011]

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

FIG. 1 is a block diagram showing the overall configuration of a subscriber radio communication system according to the present invention.

This system is premised on a ring network system in which a plurality of node devices distributed in various places are connected in a ring to communicate with each other, and a plurality of node devices 100 [ring node device] constituting a ring are connected. 1
00-1 (RN1), 100-2 (RN2), 100-
3 (RN3), 100-4 (RN4), 100-5 (R
N5), a center node device 100-6 (CN)], and a network management device (NMS) 400.

Each node device 100 (CN and RN1, R
N2, RN3, RN4, RN5) are connected to one or a plurality of local communication terminals 200, respectively. Figure 1
In particular, the communication terminal 200a connected to the RN2,
Only the communication terminal 200b connected to the RN5 is shown.

In this system, each of the node devices 100 is connected to a radio device 120-1 or 120-120, respectively.
2, and performs wireless communication with the node device 100 facing each other via each of the wireless devices 120-1 and 120-2.

By the wireless communication between the opposing node devices,
Within the ring, communication such as data transmission can be performed between arbitrary node devices 100 or between communication terminals 200 connected to each node device 100.

Each wireless device 1 of the opposing node device 100
A bidirectional wireless line is provided between 20-1 and 120-2. One of the wireless lines is used as a working line for performing communication such as data transmission described above during normal times, and the other wireless line is used as a backup line for securing a bypass transmission line when a failure occurs. Used.

That is, during the transmission of data over the working line, the radio equipment 120-
When a failure such as a failure of the transmission line 1 or 120-2 occurs, the two node devices 100 adjacent to the failure location perform a so-called loopback control for connecting the working line back to the protection line and perform a bypass transmission line. To secure and maintain communication.

In this system, the node device 10
For example, as a transmission method between 0, an asynchronous transfer mode (A
TM) system. In this case, in the present system, each of the node device 100 and the NMS 400 is realized by an ATM communication device, and the transmission path includes an ATM.
This is realized by transmitting cells.

The ATM communication device is a VP (Virtual Path)
A fixed-length cell (ATM cell) input from an input port in an ATM transmission path in which a two-level virtual communication path called a virtual communication channel (VC) and a virtual channel (VC) can be set. Virtual Path Identifier:
Virtual path identifier) and VCI (Virtual Channel Identi
fier: virtual channel identifier).

With the switching processing function of each node device 100, bidirectional communication can be performed between arbitrary node devices 100 or communication terminals 200 connected to each node device 100 in the ring.

Further, in the system of FIG.
N100-6 is connected to NMS 400 and communication network 500.

Thus, in the present system, each node device 100 and each communication terminal 200 connected to each node device 100 are connected, for example, to another ATM ring via the external communication network 500 connected to the CN 100-6. Communication is also possible with an ATM communication device in the network and a data terminal connected to the ATM communication device.

Each of the node devices 100 and the NMS 400
Between them, transmission / reception of monitoring / control information via the CN 100-6 is also possible. Thereby, the NMS 400 collects information from each of the node devices 100 to monitor an operation state or the like, and sends a control signal through a reverse route based on the monitoring result to cause each of the node devices 100 in the ring to monitor. Services such as control can be provided.

FIG. 2 shows each node device 100 in FIG.
FIG. 2 is a block diagram showing a configuration of a wireless device 120 (120-1, 120-2).

In FIG. 2, radio devices 120-1 and 120-12
0-2 are indoor units (IDU: INDOOR U
NIT) 130, outdoor unit (ODU: OUTDOOR UNIT)
140, which are connected to both sides of a main unit (hereinafter, referred to as a communication device) 110 of the node device 100.

The wireless device 120 (120-1, 120-
In 2), the IDU 130 responds to an external input / output unit 131 that manages an input / output interface (RS232C or the like) for information with the maintenance terminal 150, and responds to a setting operation at the maintenance terminal 150 connected to the external input / output unit 131. Based on the setting control signal, the ODU wireless driver 1 of the ODU 140 cooperates with an ODU hard driver 143 in the ODU 140 described later.
42, an ODU hard driver 132 that performs control for automatically setting a device operation state related to transmission and reception of a main signal of the wireless device 120, a DRAM, an SRAM, and the like.
A storage unit 133 for storing various information necessary for operation control and the like of the wireless device 120, a frequency flash database (D
B) a flash memory (EEPROM) 134, which has storage areas such as a transmission output flash DB and a transmission state mode flash DB, and stores the setting of the device operation state for the ODU radio section 142 in a corresponding storage area.
A control unit 135 that controls the operation of the entire DU, an IDU radio unit 136 that performs signal processing related to transmission and reception of the main signal, and an IF unit 137 that performs an intermediate frequency (IF) conversion process on the main signal.
It comprises.

The ODU 140 includes an antenna 141, an ODU radio unit 142 for performing signal processing related to transmission and reception of a main signal,
An ODU hard driver 143 that controls the ODU wireless unit 142 to automatically set a device operation state related to transmission and reception of a main signal in cooperation with an ODU hard driver 132 in the DU 130, (I
F) It comprises an IF unit 144 for performing a conversion process.

The IDU 130 and the ODU 140 are connected by, for example, one coaxial cable (IF cable). The ODU hardware driver 132 and the ODU hardware driver 143 transmit and receive a setting control signal (shown by a thin solid line with an arrow in FIG. 2) related to the device operation state setting through the coaxial cable.
The unit 144 transmits and receives a main signal (shown by a thick solid line with an arrow) through the coaxial cable.

For example, regarding the main signal, the communication device 11
0 (for example, the wireless device 120-1)
Is received from the wireless device 120-2 of the node device 100 with which the IDU 130 is located, the IDU wireless unit 136 of the IDU 130.
Is converted from an optical signal to an electric signal by the O / E conversion unit 1361, and then modulated by the modulation unit 1362, and then sent to the IF unit 144 of the ODU 140 via the IF unit 137.

In the ODU 140, the signal transmitted from the IF unit 144 is subjected to predetermined signal processing by the ODU radio unit 142, and then transmitted to the opposing node device 100 via the antenna 141.

In the ODU 140, a signal transmitted from the wireless device 120 of the node device 100 is received by the antenna 141, and the ODU wireless unit 142 performs predetermined signal processing. IDU1
30.

In the IDU 130, the signal transmitted from the IF unit 144 of the ODU 140 is transmitted to the IDU 130 via the IF unit 137.
The data is taken into the DU wireless unit 136. In IDU radio section 136, this signal is demodulated by demodulation section 1363, and then E / O
The conversion unit 1364 converts the electric signal into an optical signal and sends the signal to the communication device 110.

At the time of transmission / reception of the main signal, the ODU radio section 142 of the ODU 140 communicates with the maintenance terminal 150 by a method described later.
According to a more preset device operation state, for example,
Control such as establishing a transmission frequency of the main signal, a reception frequency (transmission / reception frequency), a transmission output, and a transmission state of either transmission or transmission stop.

Next, a description will be given of an operation when the operation state of the main signal of the radio apparatus 120, such as the transmission / reception frequency, the transmission output, and the transmission state, is controlled by an operation from the maintenance terminal 150.

In this case, first, in FIG.
The maintenance terminal 150 is connected to the 30 external input / output unit 131. After the connection, the maintenance terminal 150 activates the device status setting function and displays, for example, a device status setting screen 155 as shown in FIG. Thereafter, using the setting screen 155, various conditions (device operation state) regarding transmission and reception of the main signal of the wireless device 120 from the maintenance terminal 150 can be set.

In this embodiment, at least the transmission / reception frequency, transmission output, transmission state (transmission or transmission stop), and transmission state mode of the radio apparatus 120 can be set as the apparatus operation state.

On the setting screen 155, for example,
When the respective values of the transmission frequency and the reception frequency are input to the reception frequency setting column 1551 and an operation for instructing the start of the setting is performed, a setting control signal corresponding to the operation input at this time is transmitted from the maintenance terminal 150 to the external input / output unit 131. IDU13 via
0 is input to the ODU hard driver 132 and the ODU1
The data is passed to the ODU hardware driver 143 for 40.

The ODU hardware driver 143 is provided for the IDU 1
The transmission frequency and the reception frequency are set inside the ODU wireless unit 142 based on the setting control signal passed from the ODU hardware driver 132 of the T.30.

Similarly, the setting screen 155 of the maintenance terminal 150
Above, by inputting the value of the desired transmission output in the transmission output setting column 1552, the control signal corresponding to this input becomes IDU
130 ODU hard driver 132 to ODU 140
Is transmitted to the ODU hardware driver 143, and a transmission output corresponding to the operation input at the maintenance terminal 150 at this time is set in the ODU wireless unit 142.

Further, on the setting screen 155 of the maintenance terminal 150, by performing an operation of selecting a transmission state of transmission or transmission stop in the transmission state setting column 1553, a control signal corresponding to the operation input at this time is performed. Is ODU of IDU130
The transmission state (transmission or transmission stop) corresponding to the operation input at this time can be set in the ODU wireless unit 142 by being sent from the hardware driver 132 to the ODU hardware driver 143 of the ODU 140.

The setting contents of the device operation state in the ODU radio section 142 based on the operation input of the maintenance terminal 150 are as follows:
After the setting is completed, it is stored in the EEPROM 134 of the IDU 130. In this case, the transmission / reception frequency is EEPROM
134, the transmission output is stored in the transmission output flash DB area, and the transmission state is stored in the transmission state flash DB area.

Then, when the wireless device 120 is powered on,
The ODU radio unit 142 operates according to the operation from the maintenance terminal 150, and according to the setting contents up to that point, the transmission / reception frequency,
The communication operation is performed by controlling the transmission output and the like.

In the present invention, when the wireless device 120 is turned on from the power-off state, the maintenance terminal 150 determines whether the transmission state is set to the transmission state before the power-off state or to forcibly stop the transmission. The ability to select is also given.

To use this function, the maintenance terminal 150
On the setting screen 155 of the transmission state mode setting field 1554
Of the power-on transmission state maintenance mode or the power-on transmission state forced stop mode is instructed to start the setting.

When this operation is performed, a signal corresponding to the mode selected by the operation is input from the maintenance terminal 150 to the ODU hardware driver 132 of the IDU 130 via the external input / output unit 131, and the ODU hardware driver 13
2 to the EEPROM 134 and stored in the area of the transmission status flash DB.

After the mode setting is completed, when the power of the wireless device 120 is turned on from the power off, the ODU hard driver 132 reads the mode setting contents from the transmission state flash DB of the EEPROM 134, and based on the setting contents, the ODU 140 A control signal is sent to the ODU hardware driver 143 to control the ODU wireless unit 142 to the transmission state before the power is turned off.

According to this control, if the transmission state maintaining mode at the time of power-on is set and the transmission state of the wireless device 120 before the power-off is the transmission state, the ODU wireless unit 142 is set to the transmission state, If the transmission state of the wireless device 120 before the power was turned off was the transmission stop state,
U radio section 142 is set to the transmission stop state.

When the power-on transmission state forced stop mode is set, the ODU radio section 142 is forcibly set to the transmission stop state.

FIG. 4 is a flowchart showing a device state setting process of the wireless device 120 according to the present invention.

When an operation input (device state setting request) using the setting screen 155 (see FIG. 3) is received from the maintenance terminal 150 connected to the external input / output unit 131 (step S40).
1), the ODU hardware driver 132 of the IDU 130
It is sequentially determined whether the setting target is a transmission / reception frequency, a transmission output, a transmission state, or a transmission state mode (steps S402 to S405).

In the determination process during this time, when the setting target is the transmission / reception frequency (step S402YE).
S), if it is a transmission output (step S403YE)
S) In case of transmission state (step S404 YES)
Sets the device operation state (transmission / reception frequency, transmission output, transmission state) corresponding to the operation input at this time from the ODU hardware driver 132 to the ODU wireless unit 142 via the ODU hardware driver 143 (step S411).

When the transmission / reception frequency, transmission output, and transmission state are set, the OD of the IDU 130 is set.
The U hardware driver 132 stores the setting contents in the EEPROM.
It is stored in each corresponding area in M134 (step S412). In this case, the transmission / reception frequency is set to the frequency flash DB, and the transmission output is set to the transmission output flash DB.
The transmission status is stored in the transmission status flash DB.

Further, in the present invention, the setting of the transmission state mode is also accepted in the flow of the processing for setting the transmission / reception frequency, the transmission output, and the transmission state described above.

That is, when it is determined that the setting request is in the transmission state mode in the above series of determination processing (steps S402 to S405) (step S405YE).
S), the ODU hardware driver 132 of the IDU 130
It is determined whether the transmission state mode is the power-on transmission state maintenance mode or the power-on transmission state forced stop mode (step S
421) If the power-on transmission state forced stop mode is selected (step S421: stop mode), the EEPROM 13
In the transmission state flash DB of No. 4, the fact is set (transmission is forcibly stopped regardless of the requested transmission state) (step S422).

If the transmission state mode is the power-on transmission state maintenance mode (step S421: maintenance mode), the requested transmission state is set in the transmission state flash DB (step S423).

After that, the ODU hardware driver 132 of the IDU 130 determines whether or not all the settings from the maintenance terminal 150 have been completed (step S431), and until the setting is completed, the above-described device state setting process (step S40).
1 to S423) are repeatedly performed.

By the series of processing shown in FIG.
The device operation state corresponding to the setting operation on the setting screen 155 of the 50 is set inside the ODU wireless unit 142 of the ODU 140, and the setting contents are stored in the EEPROM of the IDU 130.
134.

FIG. 5 is a flowchart showing the operation of the IDU 130 when the power is turned on in the wireless device 120 according to the present invention.

When a power-on operation is performed on the wireless device 120, the ODU hard driver 132 of the IDU 130
This state is detected (step S501), and the
The setting contents are read from the frequency flash DB 134 (step S502), and it is determined whether the frequency (transmission / reception frequency) is set (step S50).
3).

If the frequency has not been set (step S503: NO), the ODU hard driver 13
2 controls the ODU wireless unit 142 to the transmission stop state via the ODU hardware driver 143 (step S51).
0).

If the frequency has been set (step S 503: YES), the ODU hardware driver 132 sends the ODU radio unit 14 via the ODU hardware driver 143.
2 is set to the frequency (step S504).

Next, the ODU hardware driver 132 of the IDU 130 reads the setting contents from the transmission state flash DB of the EEPROM 134 (step S505), and determines whether the transmission state mode is the power-on transmission state maintenance mode or the power supply off state.
It is determined whether the N-time transmission state is in the forced stop mode (step S
506).

Here, if the transmission state mode is set to the power-on transmission state forced stop mode (step S5).
06: stop mode), the ODU hardware driver 132
ODU wireless section 142 via DU hardware driver 143
Is controlled to a transmission stop state (step S510).

If the transmission state mode is the power-on transmission state maintenance mode (step S506: maintenance mode), the ODU hard driver 132 sends the EEPROM 1
According to the setting contents of the transmission output flash DB of No. 34, OD
The transmission output is set to the ODU wireless unit 142 via the U hardware driver 143, and the wireless unit 142 is controlled to the transmission state (step S507).

By the series of processes shown in FIG.
When the power is turned on, the device 20 is automatically started up to a device operation state set in advance by an operation from the maintenance terminal 150. This allows the user to access the wireless device 120
It is not necessary to set the operation state of the device after the power is turned on, and the setting work can be made more efficient. Further, since the operation state setting by the user's hand does not intervene, setting errors can be prevented.

In the above-described embodiment, the transmission / reception frequency, transmission output, transmission state, and transmission mode are listed as the setting conditions for the main signal. However, other conditions can be set by operating the maintenance terminal 150. It is.

[0068]

As described above, according to the present invention,
The wireless device is provided with means for automatically setting the device operation state related to the main signal of the wireless device based on a setting operation input from the maintenance terminal, and the device operation state related to the main signal is set by an operation from the maintenance terminal. Since the control is possible, the setting operation is simpler and the setting time is shorter than the conventional hardware setting, so that the work efficiency at the time of changing the setting can be improved and the setting mistake can be greatly reduced.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing a configuration of a wireless device of the node device in FIG. 1;

FIG. 3 is a diagram showing a configuration of a setting screen of a maintenance terminal.

FIG. 4 is a flowchart illustrating a device state setting process in the wireless device.

FIG. 5 is a flowchart showing the operation of the IDU when the wireless device is turned on.

[Explanation of symbols]

100 [100-1 (RN1), 100-2 (RN1)
2), 100-3 (RN3), 100-4 (RN4),
100-5 (RN5), 100-6 (CN)] Node device 110 Node device main unit (communication device) 120 (120-1, 120-2) Wireless device 130 Indoor unit (IDU) 131 External input / output unit 132 ODU Hard driver 133 Storage unit 134 Flash memory (EEPROM) 135 Control unit 136 IDU wireless unit 1361 O / E conversion unit 1362 Modulation unit 1363 Demodulation unit 1364 E / O conversion unit 137 IF unit 140 Outdoor unit (ODU) 141 Antenna 142 ODU wireless Unit 143 ODU hardware driver 150 maintenance terminal 155 device status setting screen 1551 transmission / reception frequency setting column 1552 transmission output setting column 1553 transmission status setting column 1554 transmission status mode setting column 200 (200a, 200b) local communication terminal 300 Center node device (CN) 400 Network management device (NMS) 500 Communication network

Claims (3)

[Claims] 1. A wireless device used for a node device of a subscriber wireless system that realizes a transmission path between opposing node devices by a wireless line, comprising: an external input / output unit that controls an input / output interface with an external terminal; Setting control means for automatically setting a device operation state related to a main signal of the wireless device based on a setting operation input from a maintenance terminal connected to the external input / output means, and a device operation related to the main signal A wireless device wherein a state can be controlled by an operation from the maintenance terminal. 2. A flash memory for storing setting contents of the device operation state by the setting control means, wherein the setting control means performs wireless communication according to the setting contents read from the flash memory when a wireless device is powered on. The wireless device according to claim 1, wherein the device operation state is set for a unit. 3. The operating state of the apparatus is set to a transmission frequency and a reception frequency of the main signal, a transmission output, a transmission state of either transmission or transmission stop, or a transmission state set before power-off at power-on. 3. The radio apparatus according to claim 1, wherein the transmission state mode includes one of a transmission state maintaining mode and a transmission state forced stop mode in which transmission is forcibly set to stop when the power is turned on.