JP2000278219A - Optical repeater amplifier - Google Patents

Abstract

(57) [Problem] To provide an optical repeater / amplifier in which a control unit is separated and installed from a reception unit, so that the control unit can monitor and control the reception unit and the amplification unit. SOLUTION: A control signal CR of a receiving unit 11 is an optical transmission line 1.
6 to the receiving unit 11 and the monitoring signal SR of the receiving unit 11
And the high-frequency communication signal J are frequency-multiplexed and
Via the optical transmission line 15 to the amplifying unit 13 where the high-frequency communication signal is transmitted.
Is transmitted to the amplifier 13 via the optical transmission line 17, and the monitoring signal ST of the amplifier 13 is transmitted via the optical transmission line 18 to the control unit 1.
Send to 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical amplifying apparatus, and more particularly to an optical amplifying apparatus for transmitting a radio wave to a blind zone of a one-way communication system such as a radio call.

[0002]

2. Description of the Related Art In a mobile communication system such as a radio calling system and a mobile phone, such communication cannot be performed in a blind spot where radio waves are difficult to reach, such as a tunnel, a subway station, or an underground shopping mall. Therefore, a relay amplifier called a repeater or a booster is used to enable communication even in these blind spots. As shown in FIG. 2, a main unit 21 provided with an antenna 1 is provided where radio waves from a base station reach, and an amplification unit 22 and an antenna 2 are provided in a blind spot. In some cases, this is connected by an optical transmission line 23.

In the optical repeater / amplifier shown in FIG. 2, a high-frequency communication signal from a base station received by an antenna 1 is transmitted to an amplifier 211.
, And frequency-multiplexed by the synthesizer 212 with the high-frequency monitor signal modulated by the monitor signal from the monitor controller 214. The multiplexed high frequency causes the light emitting device 213 to emit light.
Is output to the optical transmission line 23 after being modulated. The amplifying unit 22 installed in a blind spot where radio waves from the base station cannot be received receives the optical signal transmitted via the optical transmission line 23 by the optical receiver 221 and converts it into an electric signal. The signal is split by frequency, and the high-frequency communication signal is amplified by the amplifier 223 and transmitted from the antenna 2 to a blind spot. On the other hand, the high frequency monitor signal separated by the duplexer 222 is
4 is input. Such a monitoring signal transmission method is called an in-line method. The monitor controller 224 extracts the monitor signal from the high-frequency monitor signal, controls the amplifier 22 when necessary, and generates a monitor signal indicating the state of the amplifier 22. This is converted into an optical signal by the light emitter 225 and sent to the parent device 21 via the optical transmission line 24. Base unit 2
In 1, the monitoring signal sent via the optical transmission line 24 is converted into an electric signal by the light receiver 215 and input to the monitoring controller 214.

In this way, the monitoring controller 214 of the master unit
Performs monitoring control of the amplification unit 22 in a remote place,
The contents of the monitoring include the failure of the amplifier, the temperature, the output, the voltage of each part, the normal / abnormal of the transmission line, and the like. The contents of the control include the operation of the amplifier when the abnormality is detected by the monitoring. OFF, transmission output control, etc.

[0005]

In the above-described conventional optical repeater / amplifier, a receiving unit for receiving a radio wave from a base station and a monitoring controller are integrated as a master unit. However, the receiving unit including the antenna needs to be installed in a place where radio waves from the base station can be easily received, which may be on a steel tower or a building roof. On the other hand, it is desirable that the monitoring controller be provided in a place that is easy for humans to use because the operator needs to see the display panel attached thereto and perform control operations. To this end, an optical repeater amplifying device in which a receiving unit and a control unit are separately installed has been devised, and has a configuration as shown in FIG. However, in this optical repeater / amplifier, the control unit 33 only monitors the presence or absence of the optical signal from the receiving unit 31 and performs other monitoring and control of the receiving unit 31 and the monitoring and control of the amplifying unit 32. There is nothing.

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical repeater amplifying apparatus in which a control section is separated from a receiving section and installed in another place, so as to monitor and control the receiving section and the amplifying section. Is to do.

[0007]

In order to achieve the above object, the present invention provides a receiving unit, a control unit, and an amplifying unit which are installed at separate positions, and a radio wave from a base station received by the receiving unit. A first transmission path for transmitting the communication signal to the control unit, a second transmission path for transmitting the high-frequency communication signal from the control unit to the amplification unit so that the amplification unit can transmit the signal to the space, and a reception unit control signal for the reception unit. A third transmission path for sending from the control unit to the reception unit, a fourth transmission path for sending a reception unit monitoring signal indicating the operation state of the reception unit from the reception unit to the control unit, and an amplification unit control signal for the amplification unit. An optical repeater amplifying apparatus comprising: a fifth transmission path for transmitting an amplifying unit monitoring signal indicating an operation state of the amplifying unit from the control unit to the control unit; The first and fourth transmission paths are received by the receiving unit. Means for frequency-multiplexing the frequency communication signal and the receiving section monitoring signal to convert the signal into an optical signal; a first optical transmission path for transmitting the optical signal from the means to the control section; and a transmission section via the optical transmission path. An optical splitter for splitting a part of the obtained optical signal, and means for separating the frequency of the receiving unit monitoring signal after photoelectrically converting the optical signal split by the optical splitter, and extracting the signal. A second optical transmission path for transmitting an optical signal output from the optical distributor to a receiving unit, and converting the optical signal transmitted via the optical transmission path into an electric signal; An optical repeater amplifying device comprising: a photoelectric conversion unit.

Further, the present invention provides a receiving unit, a control unit, and an amplifying unit installed at separate positions, and a first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving unit to the control unit. A second transmission path for transmitting the high-frequency communication signal from the control unit to the amplification unit so that the amplification unit can transmit the signal to the space, and a third transmission for transmitting a reception unit control signal for the reception unit from the control unit to the reception unit. A path, a fourth transmission path for transmitting a receiver monitoring signal indicating an operation state of the receiver from the receiver to the controller,
A fifth transmission path for transmitting an amplification unit control signal to the amplification unit from the control unit to the amplification unit, and a sixth transmission path for transmitting an amplification unit monitoring signal indicating an operation state of the amplification unit from the amplification unit to the control unit are provided. In the optical repeater / amplifier, the first, third, and fourth
A first optical transmission line, first and second wavelength division type optical splitters respectively provided on a receiving unit side and a control unit side at both ends thereof, and a high-frequency communication received by the receiving unit. A signal and the receiving unit supervisory signal are frequency-multiplexed and converted into an optical signal of a first wavelength, and the first signal of the first wavelength separation type optical distributor is
Means for inputting to the wavelength terminal, and output from the combining terminal of the first wavelength-separating optical splitter and input to the combining terminal of the second wavelength-separating optical splitter via the first optical transmission line. , And the first wavelength output from the first wavelength output terminal.
An optical splitter for splitting a part of an optical signal having a wavelength, means for photoelectrically converting the optical signal split by the optical splitter, and separating and extracting the reception unit monitoring signal in frequency; and A signal having a second wavelength different from the first wavelength;
Means for converting the signal into an optical signal having a wavelength and inputting the signal to the second wavelength terminal of the second wavelength division type optical distributor; and outputting the first light from the combining terminal of the second wavelength division type optical distributor. The optical signal of the second wavelength input to the combining terminal of the first wavelength division type optical distributor via a transmission line and further output from the second wavelength output terminal is converted into an electric signal to convert the signal into an electric signal. Means for extracting a control signal, wherein the second transmission path includes a second optical transmission path for transmitting an optical signal output from the optical distributor to a receiving unit, and a second optical transmission path transmitted through the optical transmission path. And a photoelectric conversion means for converting an optical signal into an electric signal.

The present invention also provides a receiving unit, a control unit, and an amplifying unit installed at separate positions, and a first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving unit to the control unit. A second transmission path for transmitting the high-frequency communication signal from the control unit to the amplification unit so that the amplification unit can transmit the signal to the space, and a third transmission for transmitting a reception unit control signal for the reception unit from the control unit to the reception unit. A path, a fourth transmission path for transmitting a receiver monitoring signal indicating an operation state of the receiver from the receiver to the controller,
A fifth transmission path for transmitting an amplification unit control signal to the amplification unit from the control unit to the amplification unit, and a sixth transmission path for transmitting an amplification unit monitoring signal indicating an operation state of the amplification unit from the amplification unit to the control unit are provided. Means for converting a first portion of the fifth transmission path and the third transmission path into an optical signal by frequency-multiplexing the amplification unit control signal and the reception unit control signal in the optical repeater / amplifier; A third optical transmission line for sending the output of this means to the receiving unit, and converting the optical signal sent via the optical transmission line into an electric signal, and then receiving the receiving unit control signal and the amplifying unit control signal. Means for frequency-separating the signal and extracting the second part following the first part of the fifth transmission path and the first and fourth transmission paths by the high-frequency communication received by the receiver. Signal, the receiving unit monitoring signal, and the extracted amplification Means for frequency-multiplexing the control signal and converting the signal to an optical signal, a first optical transmission line for transmitting the optical signal from the means to the control unit, and an optical signal transmitted via the optical transmission line. An optical splitter for splitting a part of the signal; and a means for photoelectrically converting the optical signal split by the optical splitter and then separating and extracting the reception unit monitoring signal by frequency. Through the remaining portion following the second portion and the second transmission path through a second optical transmission path for transmitting an optical signal output from the optical distributor to a receiving section, An optical relay amplifier comprising: a photoelectric conversion unit for converting a transmitted optical signal into an electric signal; and a unit for extracting the high-frequency communication signal and the amplification unit control signal from the output of the unit by frequency separation. Provide equipment.

Further, the present invention provides a receiving unit, a control unit, and an amplifying unit installed at separate positions, and a first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving unit to the control unit. A second transmission path for transmitting the high-frequency communication signal from the control unit to the amplification unit so that the amplification unit can transmit the signal to the space, and a third transmission for transmitting a reception unit control signal for the reception unit from the control unit to the reception unit. A path, a fourth transmission path for transmitting a receiver monitoring signal indicating an operation state of the receiver from the receiver to the controller,
A fifth transmission path for transmitting an amplification unit control signal to the amplification unit from the control unit to the amplification unit, and a sixth transmission path for transmitting an amplification unit monitoring signal indicating an operation state of the amplification unit from the amplification unit to the control unit are provided. Means for converting a first portion of the fifth transmission path and the third transmission path into an optical signal by frequency-multiplexing the amplification unit control signal and the reception unit control signal in the optical repeater / amplifier; A third optical transmission line for sending the output of this means to the receiving unit, and converting the optical signal sent via the optical transmission line into an electric signal, and then receiving the receiving unit control signal and the amplifying unit control signal. Means for frequency-separating the signal and extracting the second part following the first part of the fifth transmission path and the first and fourth transmission paths by the high-frequency communication received by the receiver. Signal, the receiving unit monitoring signal, and the extracted amplification Means for frequency-multiplexing the control signal and converting it to an optical signal of a first wavelength, a first optical transmission line for transmitting the optical signal from this means to the control unit, and a signal transmitted through the optical transmission line. An optical splitter for splitting a part of the received optical signal, and a means for frequency-separating and extracting the receiving unit monitoring signal after photoelectrically converting the optical signal split by the optical splitter, and The second transmission path of the fifth transmission path;
The remaining part following the part and the second and sixth transmission paths are connected to the second optical transmission path and the control unit side thereof, and the first wavelength terminal receives the optical signal from the optical distributor. A first wavelength-separating type optical distributor in which the second optical transmission line is connected to the input terminal of the second optical transmission line, and a second wavelength in which the amplifier side of the second optical transmission line is connected to the synthesis terminal. A separation type optical splitter, means for converting the optical signal from the first wavelength terminal into an electric signal, and then extracting the high-frequency communication signal and the amplifier control signal by frequency separation, and converting the amplifier monitor signal to the first signal. Means for converting the optical signal into a second wavelength optical signal different from the second wavelength and inputting the converted signal to the second wavelength terminal of the second wavelength separation type optical splitter; Means for converting an optical signal from a wavelength terminal into an electrical signal and extracting the amplifier monitoring signal; To provide an optical repeater amplifier device, characterized in that the al configuration.

Further, the present invention provides a receiving unit, a control unit, and an amplifying unit installed at separate positions, and a first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving unit to the control unit. A second transmission path for transmitting the high-frequency communication signal from the control unit to the amplification unit so that the amplification unit can transmit the signal to the space, and a third transmission for transmitting a reception unit control signal for the reception unit from the control unit to the reception unit. A path, a fourth transmission path for transmitting a receiver monitoring signal indicating an operation state of the receiver from the receiver to the controller,
A fifth transmission path for transmitting an amplification unit control signal to the amplification unit from the control unit to the amplification unit, and a sixth transmission path for transmitting an amplification unit monitoring signal indicating an operation state of the amplification unit from the amplification unit to the control unit are provided. In the optical repeater / amplifier, the first part of the fifth transmission path and the first, third and fourth transmission paths are connected to each other by the first transmission path.
An optical transmission line, and first and second wavelength separation type optical splitters respectively provided on the receiving unit side and the control unit side at both ends thereof,
Means for frequency-multiplexing the amplification unit control signal and the reception unit control signal, converting the signal into a second wavelength optical signal, and inputting the converted signal to a second wavelength terminal of the second wavelength separation type optical distributor; 2 is output from the combining terminal of the wavelength division type optical splitter, is input to the combining terminal of the first wavelength division type optical splitter via the first optical transmission line, and is further output from the second wavelength output terminal. Means for converting the optical signal of the second wavelength into an electric signal to take out the receiving section control signal and the amplifying section control signal, and the amplifying section control signal taken out by this means and received by the receiving section. A high-frequency communication signal and the receiving unit monitoring signal are frequency-multiplexed and converted into a first wavelength optical signal having a wavelength different from the second wavelength, and input to a first wavelength terminal of the first wavelength separation type optical distributor. And the first wavelength separation type optical distributor. The optical signal of the first wavelength which is output from the terminal, is input to the combining terminal of the second wavelength division type optical distributor via the first optical transmission line, and is further output from the first wavelength output terminal. An optical splitter for splitting a part of the signal; and a means for photoelectrically converting the optical signal split by the optical splitter and then separating and extracting the reception unit monitoring signal by frequency. And the second and sixth transmission paths are connected to a second optical transmission path and a control unit thereof, and an optical signal from the optical distributor is input to a first wavelength terminal thereof. A third wavelength separation type optical distributor in which the second optical transmission line is connected to a combination terminal, and a fourth wavelength separation type optical coupler in which the amplification section of the second optical transmission line is connected to the combination terminal. After converting the optical signal from the distributor and the first wavelength terminal into an electric signal, Means for retrieving by the frequency separating the amplification section control signal and the wave communication signal,
Means for converting the amplifier monitoring signal into an optical signal of the second wavelength and inputting the signal to the second wavelength terminal of the fourth wavelength-separating optical splitter; Means for converting an optical signal from the second wavelength terminal into an electric signal and extracting the amplifier monitoring signal.

Further, the present invention provides a receiving unit, a control unit, and an amplifying unit installed at separate positions, and a first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving unit to the control unit. A second transmission path for transmitting the high-frequency communication signal from the control unit to the amplification unit so that the amplification unit can transmit the signal to the space, and a third transmission for transmitting a reception unit control signal for the reception unit from the control unit to the reception unit. A path, a fourth transmission path for transmitting a receiver monitoring signal indicating an operation state of the receiver from the receiver to the controller,
A fifth transmission path for transmitting an amplification unit control signal to the amplification unit from the control unit to the amplification unit, and a sixth transmission path for transmitting an amplification unit monitoring signal indicating an operation state of the amplification unit from the amplification unit to the control unit are provided. In the optical repeater / amplifier, the first part of the fifth transmission path and the first, third and fourth transmission paths are connected to each other by the first transmission path.
An optical transmission line, and first and second wavelength separation type optical splitters respectively provided on the receiving unit side and the control unit side at both ends thereof,
Means for frequency-multiplexing the amplification unit control signal and the reception unit control signal, converting the signal into a second wavelength optical signal, and inputting the converted signal to a second wavelength terminal of the second wavelength separation type optical distributor; 2 is output from the combining terminal of the wavelength division type optical splitter, is input to the combining terminal of the first wavelength division type optical splitter via the first optical transmission line, and is further output from the second wavelength output terminal. Means for converting the optical signal of the second wavelength into an electric signal to take out the receiving section control signal and the amplifying section control signal, and the amplifying section control signal taken out by this means and received by the receiving section. A high-frequency communication signal and the receiving unit monitoring signal are frequency-multiplexed and converted into a first wavelength optical signal having a wavelength different from the second wavelength, and input to a first wavelength terminal of the first wavelength separation type optical distributor. And the first wavelength separation type optical distributor. The optical signal of the first wavelength which is output from the terminal, is input to the combining terminal of the second wavelength division type optical distributor via the first optical transmission line, and is further output from the first wavelength output terminal. An optical splitter for splitting a part of the signal; and a means for photoelectrically converting the optical signal split by the optical splitter and then separating and extracting the reception unit monitoring signal by frequency. And the second transmission path, a second optical transmission path for transmitting an optical signal output from the optical distributor to a receiving unit, and an optical signal transmitted via this optical transmission path. There is provided an optical repeater amplifying apparatus comprising: a photoelectric conversion unit for converting into an electric signal; and a unit for extracting the high-frequency communication signal and the amplification unit control signal from the output of the unit by frequency separation.

[0013]

Embodiments of the present invention will be described below. FIG. 1 is a block diagram showing a first configuration example of an optical repeater / amplifier according to the present invention. A receiving unit 11, a control unit 12, and an amplifying unit 13 are provided separately, and the space between them is as shown in the drawing. They are connected by optical transmission lines 14-18. The high-frequency communication signal J (frequency f1) from the base station is received by the antenna 1, amplified by the amplifier 111, combined with the monitor signal SR (frequency f2 ≠ f1) by the monitor controller 114 by the combiner 112, and then emitted. The optical signal is converted into an optical signal by the optical transmitter 113 and transmitted to the optical transmission line 14. In the control unit 12, a part of the optical signal transmitted via the optical transmission line 14 is branched by the optical distributor 121 to the optical receiver 122, and most of the energy is transmitted to the optical transmission line 15 as it is. In the amplifying unit 13, the optical signal sent via the optical transmission line 15 is converted into an electric signal by the optical receiver 131, and the high-frequency communication signal J of the frequency f 1 is
Is amplified by the amplifier 133 and then transmitted from the antenna 2 to the dead zone.

A control signal CR from the control unit 12 to the receiving unit 11 is output from the monitoring controller 125,
At 4, it is converted into an optical signal and transmitted to the optical transmission line 16. This is returned to the control signal CR as an electric signal by the light receiver 115 of the receiving unit 11 and input to the monitoring controller 114 to be used for control in the receiving unit. The monitor signal SR (frequency f2) representing the state of the receiving unit 11 is frequency-multiplexed with the high-frequency communication signal J by the combiner 112, and then received via the light emitter 113, the optical transmission line 14, and the optical distributor 121. The monitoring signal SR is sent to the monitor 122, where it is returned to an electric signal, and only the monitoring signal SR is extracted by the filter 123 and input to the monitoring controller 125. The monitoring controller 125 displays the monitoring signal SR and uses it for generating the control signal CR. Thus, the transmission path of the monitoring control signal of the receiving unit 11 is formed by frequency multiplexing on the same optical transmission path as the high-frequency communication signal J in one direction and the dedicated optical transmission path 16 in the other direction. Has been realized.

On the other hand, a control signal CT for the amplifying unit is sent to the amplifying unit via the light emitter 126, the optical transmission line 17, and the light receiver 134, and the monitoring controller 135 uses the control signal CT. 13 is performed. Monitoring controller 1
The monitoring signal ST from the light emitting device 136 and the optical transmission line 1
8. Monitoring controller 125 of control unit 12 via light receiver 127
And display is performed. Thus, the transmission path of the monitoring control signal of the amplification unit 13 is a dedicated optical transmission path 17,
18. According to the first configuration example shown in FIG. 1 described above, it is possible to monitor and control a receiving unit and an amplifying unit that are separately installed.

FIG. 4 is a block diagram showing a second configuration example of the optical repeater / amplifier according to the present invention.
The three sections are connected by two optical transmission lines 45 and 48. In this configuration example, the high-frequency communication signal J received by the antenna 1 is transmitted to the amplifier 411, the combiner 412, the light emitter 413, the optical transmission line 414, the optical distributor 421, and the optical transmission line 4.
5, transmitted to the photodetector 431, transmitted from the filter 432 for extracting the signal of the frequency f1 to the dead zone through the path of the amplifier 433 and the antenna 2, and the monitoring signal S of the amplifying unit 43.
T is sent to the monitoring controller 425 via the light emitter 436, the optical transmission line 48, and the light receiver 427, and the configuration thereof is the same as that in FIG. Further, the monitor signal SR (frequency f2) from the receiving unit 41 is transmitted to the high-frequency communication signal J (frequency f
1), and is frequency-multiplexed with the light emitting device 413 and the optical transmission line 41.
4. The light is sent to the monitoring controller 425 via the light distributor 421, the light receiver 422, and the filter 423.
A control signal CR to the monitoring controller 414 is also transmitted via the light emitter 424, the optical transmission path 46, and the light receiver 45, and the path configuration is the same as that in FIG.

The difference from the configuration of FIG. 1 is that the control signal CT to the amplifier 43 is transmitted via the receiver 41. That is, the monitoring controller 425 of the control unit 42
Sets the control signal CT to the amplifying unit 43 as a modulated wave of the frequency f4 and the control signal CR to the receiving unit 41 at the frequency f3 (≠ f
4), and these two modulated signals are
4, the optical transmission path 46, the optical transmission system of the photodetector 415, the receiving unit 4
1 to the supervisory controller 414. The monitoring controller 414 outputs the control signal CT (frequency f4) of the amplifying unit among the signals sent from the control unit 42 and the monitoring signal SR having the frequency f2 different from the control signal CT to the synthesizer 412. 412 is a high-frequency communication signal J (f1) and a monitoring signal SR.
(F2) and a frequency multiplexed signal of the control signal CT (f4). The monitoring signal SR (f2) among them is extracted by the filter 423 of the control unit 42 as described above, but the high-frequency communication signal J and the control signal CT are extracted by the filter 43 of the amplification unit.
2 and the filter 437, respectively, and the control signal CT is input to the monitoring controller 435 and used for controlling the amplifier.

As described above, if the control signal to the amplifying unit is sent via the receiving unit, there is no increase in optical components due to bypassing the receiving unit, and the light emitting device 1 in the configuration of FIG.
An optical transmission system including the optical transmission path 26, the optical transmission path 17, and the light receiver 134 is not required. Therefore, it is possible to reduce the number of expensive optical components whose life is shorter than that of the electrical components. Note that if the transmitted high-frequency communication signal J and the control signal CT are multiplexed in the control unit 42, it is not necessary to bypass the receiving unit 41, but in this case, the high-frequency communication The signal J is temporarily converted back to an electric signal, multiplexed, converted into an optical signal again, and transmitted to the optical transmission line 45. This leads to an increase in the number of optical components and a deterioration in communication quality due to an increase in distortion and noise of the high-frequency communication signal J, which is not a preferable configuration.

FIG. 5 is a block diagram showing a third configuration example of the optical repeater amplifying apparatus according to the present invention. In the second configuration example of FIG. 4, two optical transmission lines between the control unit and the amplification unit are provided. 45 and 48 are combined into one optical transmission line 50, and for that purpose, WDM (Waveleng
It is characterized in that couplers 528 and 538 are provided, and other configurations and operations are exactly the same as those in FIG. Therefore, the same reference numerals as those in FIG. 4 denote the same parts. Here, the WDM coupler is a wavelength separation type optical splitter for combining / branching 1.3 μm band light and 1.55 μm band light, which is generally used for transmission using a silica-based single mode optical fiber. By utilizing this, bidirectional transmission is performed by one optical fiber as follows.

Assuming that one of the wavelengths 1.3 μm and 1.55 μm is λ1 and the other is λ2, the light emitting device 41 shown in FIG.
Reference numeral 3 denotes an optical signal having the wavelength λ1, and the light emitter 436 outputs an optical signal having the wavelength λ2. Then, the wavelength λ from the receiving unit 41 input to the λ1 terminal of the WDM coupler 528
The optical signal 1 is output from the combining terminal of the WDM coupler 528 to the optical transmission line 50. This is WDM via optical transmission line 50
The light is input to the combining terminal of the coupler 538, output to the λ1 terminal, and sent to the light receiver 431. On the other hand, the optical signal of wavelength λ2 modulated by the monitor signal ST from the light emitter 436 is a WDM signal.
The signal is input to the λ2 terminal of the coupler 538, and output from the combined terminal to the optical transmission line 50. WDM via optical transmission line 50
The optical signal of the wavelength λ2 input to the combining terminal of the coupler 528 is output from the λ2 terminal and sent to the light receiver 427. Thus, in FIG.
The transmission via the optical transmission line 45 to the optical transmitter 436 and the transmission via the optical transmission line 48 from the light emitter 436 to the light receiver 427 can be replaced by the WDM couplers 528 and 538 and the single optical transmission line 50.

FIG. 6 is a block diagram showing a fourth configuration example of the optical repeater amplifying apparatus according to the present invention, wherein two optical transmission lines 44 and 46 between the receiving section 41 and the control section 42 of FIG. One optical transmission line 60 is combined into one WDM coupler 616, 629.
, And has the same configuration as FIG. 5 except for this part. The operation of bidirectional transmission using the optical transmission line 60 between the receiving unit 61 and the control unit 62 and the WDM couplers 616 and 629 is the same as the bidirectional transmission between the control unit 62 and the amplifying unit 53, and the details are omitted. The optical transmission path portion of the path for transmitting the control signals CR and CT from the control section 62 to the receiving section 61 and the optical transmission path portion of the path for transmitting the monitoring signal ST from the amplification section 53 to the control section 62 are completely separated. Therefore, an optical signal having the same wavelength λ2 can be used.

Various configurations are shown in FIG. 1, FIG. 4, FIG. 5, and FIG. 6 described above.
One optical transmission line and a WDM coupler are connected between the receiving unit and the control unit as in FIG. 6, and the control unit and the amplifying unit are connected as shown in FIG.
In the fifth configuration example in which two optical transmission lines are connected as described above, the reception unit and the control unit are also connected with one optical transmission line and a WDM coupler as in FIG. Figure 1
The sixth configuration example in which three optical transmission lines are connected as described above is also possible. The control signal CT to the amplifying unit is sent via the receiving unit in the fifth configuration example, and is sent directly from the control unit to the amplifying unit in the sixth configuration example.

[0023]

According to the present invention, even in an optical repeater amplifying device including a receiving unit, a control unit, and an amplifying unit installed at remote locations, the control unit can monitor and control the receiving unit and the amplifying unit. And maintainability can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a first configuration example of an optical repeater / amplifier according to the present invention.

FIG. 2 is a block diagram illustrating a configuration example of a conventional optical repeater / amplifier.

FIG. 3 is a schematic configuration diagram of an optical repeater amplifying apparatus in which a control unit and a receiving unit are separately installed.

FIG. 4 is a block diagram illustrating a second configuration example of the optical repeater / amplifier according to the present invention.

FIG. 5 is a block diagram showing a third configuration example of the optical repeater / amplifier according to the present invention.

FIG. 6 is a block diagram illustrating a fourth configuration example of the optical repeater / amplifier according to the present invention.

[Explanation of symbols]

11, 41, 61 Receiving unit 12, 42, 52, 62 Control unit 13, 43, 53 Amplifying unit 112, 412 Combiner 113, 124, 126, 136, 413, 424, 4,
36 light emitter 115,122,127,134,415,422,4
27, 431 Light receiver 121, 421 Light distributor 123, 132, 423, 432, 437 Filter 125, 425 Monitoring controller 528, 538, 616, 629 WDM coupler

Claims (6)

[Claims] A first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving section to the control section; a high-frequency communication section; A second transmission path for transmitting a signal from the control section to the amplification section so that the signal can be transmitted to the space by the amplification section, a third transmission path for transmitting a reception section control signal for the reception section from the control section to the reception section, A fourth transmission path for transmitting a reception section monitoring signal indicating the operation state of the section from the reception section to the control section, a fifth transmission path for transmitting an amplification section control signal for the amplification section from the control section to the amplification section, An optical repeater amplifier comprising: a sixth transmission path for transmitting an amplification unit monitoring signal indicating an operation state from the amplification unit to the control unit; wherein the first and fourth transmission paths are transmitted by the reception unit. Frequency multiplexing the signal and the receiving unit monitoring signal Means for converting the signal into an optical signal, a first optical transmission path for transmitting the optical signal from the means to the control unit, and an optical distribution for splitting a part of the optical signal transmitted via the optical transmission path And a means for photoelectrically converting the optical signal split by the optical splitter and then separating and extracting the reception unit monitoring signal by frequency. The second transmission path is output from the optical splitter. A second optical transmission line for transmitting the received optical signal to a receiving unit, and a photoelectric conversion means for converting the optical signal transmitted via the optical transmission line into an electric signal. apparatus. 2. A receiving unit, a control unit, and an amplifying unit installed at separate positions, a first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving unit to the control unit, and the high-frequency communication. A second transmission path for transmitting a signal from the control section to the amplification section so that the signal can be transmitted to the space by the amplification section, a third transmission path for transmitting a reception section control signal for the reception section from the control section to the reception section, A fourth transmission path for transmitting a reception section monitoring signal indicating the operation state of the section from the reception section to the control section, a fifth transmission path for transmitting an amplification section control signal for the amplification section from the control section to the amplification section, An optical repeater amplifying device comprising: a sixth transmission path for transmitting an amplification unit monitoring signal indicating an operation state from the amplification unit to the control unit; wherein the first, third, and fourth transmission paths are connected to a first optical transmission line. And the receiver and control units at both ends of the A first wavelength separation type optical splitter, and a high-frequency communication signal received by the reception unit and a reception unit monitoring signal, which are frequency-multiplexed and converted into an optical signal of a first wavelength; Means for inputting to the first wavelength terminal of the type optical splitter, and the second wavelength splitting type optical splitter output from the combining terminal of the first wavelength splitting type optical splitter via the first optical transmission path. An optical splitter for inputting to the combining terminal of the optical splitter and further splitting a part of the optical signal of the first wavelength output from the first wavelength output terminal; and an optical splitter for splitting the optical signal split by the optical splitter. A means for frequency-separating and extracting the receiving unit monitoring signal after the photoelectric conversion, and a step of converting the receiving unit control signal into an optical signal of a second wavelength different from the first wavelength to the second signal.
Means for inputting to the second wavelength terminal of the wavelength separation type optical splitter, and the first wavelength separation output from the combining terminal of the second wavelength separation type optical splitter via the first optical transmission line. Means for converting the optical signal of the second wavelength output from the second wavelength output terminal into an electric signal, and extracting the receiving unit control signal, wherein A second transmission path for transmitting an optical signal output from the optical distributor to a receiving unit; and a photoelectric conversion unit for converting the optical signal transmitted via the optical transmission path into an electric signal. An optical repeater amplifying device comprising: a conversion unit. 3. A high-frequency communication unit comprising: a receiving unit, a control unit, and an amplifying unit installed at separate positions; a first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving unit to the control unit; A second transmission path for transmitting a signal from the control section to the amplification section so that the signal can be transmitted to the space by the amplification section, a third transmission path for transmitting a reception section control signal for the reception section from the control section to the reception section, A fourth transmission path for transmitting a reception section monitoring signal indicating the operation state of the section from the reception section to the control section, a fifth transmission path for transmitting an amplification section control signal for the amplification section from the control section to the amplification section, An optical repeater / amplifier comprising: a sixth transmission path for transmitting an amplification section monitoring signal indicating an operation state from the amplification section to the control section; wherein a first portion of the fifth transmission path and the third transmission path are connected to each other. The amplification unit control signal and the reception unit control signal Means for multiplexing and converting to an optical signal, a third optical transmission path for sending the output of this means to a receiving section, and converting the optical signal sent via this optical transmission path to an electric signal, Means for frequency-separating and extracting the unit control signal and the amplifying unit control signal, a second part following the first part of the fifth transmission path, and the first and fourth transmission paths Means for frequency-multiplexing the high-frequency communication signal received by the receiver, the reception section monitoring signal, and the extracted amplification section control signal, and then converting the signal to an optical signal, and controlling the optical signal from this means. A first optical transmission line to be transmitted to the optical transmission unit, an optical splitter for splitting a part of the optical signal transmitted through the optical transmission line, and a photoelectric conversion of the optical signal split by the optical splitter. Means for frequency-separating and extracting the receiver monitoring signal A second optical transmission for transmitting an optical signal output from the optical distributor to a receiving unit through the remaining part following the second part of the fifth transmission path and the second transmission path. Path, photoelectric conversion means for converting an optical signal sent through the optical transmission path into an electric signal, and means for extracting the high-frequency communication signal and the amplifier control signal from the output of this means by frequency separation. An optical repeater amplifying device comprising: 4. A high-frequency communication unit comprising: a receiving unit, a control unit, and an amplifying unit installed at separate positions; a first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving unit to the control unit; A second transmission path for transmitting a signal from the control section to the amplification section so that the signal can be transmitted to the space by the amplification section, a third transmission path for transmitting a reception section control signal for the reception section from the control section to the reception section, A fourth transmission path for transmitting a reception section monitoring signal indicating the operation state of the section from the reception section to the control section, a fifth transmission path for transmitting an amplification section control signal for the amplification section from the control section to the amplification section, An optical repeater / amplifier comprising: a sixth transmission path for transmitting an amplification section monitoring signal indicating an operation state from the amplification section to the control section; wherein a first portion of the fifth transmission path and the third transmission path are connected to each other. The amplification unit control signal and the reception unit control signal Means for multiplexing and converting to an optical signal, a third optical transmission path for sending the output of this means to a receiving section, and converting the optical signal sent via this optical transmission path to an electric signal, Means for frequency-separating and extracting the unit control signal and the amplifying unit control signal, a second part following the first part of the fifth transmission path, and the first and fourth transmission paths After frequency-multiplexing the high-frequency communication signal received by the receiver, the reception unit monitoring signal, and the extracted amplification unit control signal,
Means for converting the optical signal into an optical signal of the wavelength, a first optical transmission path for transmitting the optical signal from this means to the control unit, and a part for branching a part of the optical signal transmitted through the optical transmission path. And a means for photoelectrically converting an optical signal split by the optical splitter, and then separating and extracting the reception unit monitoring signal by frequency. The second portion of the fifth transmission path And the second and sixth transmission paths, a second optical transmission path,
A first wavelength splitting type optical splitter provided on the control unit side, the optical signal from the optical splitter being input to the first wavelength terminal, and the second optical transmission line being connected to the synthesizing terminal; A second wavelength separation type optical distributor in which an amplification unit side of the second optical transmission line is connected to its combining terminal; and an optical signal from the first wavelength terminal which is converted into an electric signal, and then the high-frequency communication signal. Means for extracting the amplification unit control signal by frequency separation; and converting the amplification unit monitoring signal into an optical signal of a second wavelength different from the first wavelength to convert the amplification unit monitoring signal into an optical signal of the second wavelength separation type optical distributor. Means for inputting to the second wavelength terminal, and means for converting the optical signal from the second wavelength terminal of the first wavelength separation type optical distributor into an electric signal and extracting the amplifier monitoring signal. Characteristic optical repeater amplifier. 5. A high-frequency communication unit comprising: a receiving unit, a control unit, and an amplifying unit installed at separate positions; a first transmission path for transmitting a high-frequency communication signal from a base station received by the receiving unit to the control unit; A second transmission path for transmitting a signal from the control section to the amplification section so that the signal can be transmitted to the space by the amplification section, a third transmission path for transmitting a reception section control signal for the reception section from the control section to the reception section, A fourth transmission path for transmitting a reception section monitoring signal indicating the operation state of the section from the reception section to the control section, a fifth transmission path for transmitting an amplification section control signal for the amplification section from the control section to the amplification section, An optical repeater / amplifier having a sixth transmission path for transmitting an amplification unit monitoring signal indicating an operation state from the amplification unit to the control unit, wherein a first portion of the fifth transmission path and the first, third, and third transmission paths are provided. The fourth transmission path is composed of a first optical transmission path and receiving sections at both ends thereof. And a first and second wavelength separation type optical splitters respectively provided on the control unit side, frequency-multiplexing the amplification unit control signal and the reception unit control signal, and converting them into a second wavelength optical signal. Means for inputting to the second wavelength terminal of the second wavelength division type optical splitter, and means for outputting the first signal from the combining terminal of the second wavelength division type optical splitter via the first optical transmission line.
The optical signal of the second wavelength, which is input to the combining terminal of the wavelength division type optical splitter and further output from the second wavelength output terminal, is converted into an electric signal, and the reception unit control signal and the amplification unit control signal are converted. And a first wavelength having a wavelength different from the second wavelength by frequency-multiplexing the amplification unit control signal, the high-frequency communication signal received by the reception unit, and the reception unit monitoring signal extracted by this unit. Means for converting the optical signal into an optical signal and inputting the signal to the first wavelength terminal of the first wavelength division type optical splitter; and the first optical transmission line output from the combining terminal of the first wavelength division type optical splitter An optical splitter that is input to the combining terminal of the second wavelength-separating optical splitter via the second splitter, and further splits a part of the first wavelength optical signal output from the first wavelength output terminal. The optical signal split by this optical distributor is photoelectrically converted. Then, the receiving unit monitor signal is frequency-separated and taken out, and the remaining part of the fifth transmission path, the second and sixth transmission paths are connected to a second optical transmission path, A third wavelength separation type optical splitter provided on the control unit side, the optical signal from the optical splitter being input to a first wavelength terminal thereof, and the second optical transmission line being connected to a combining terminal thereof; A fourth wavelength separation type optical distributor in which the amplifying section of the second optical transmission line is connected to the combining terminal; and the high-frequency communication signal after converting an optical signal from the first wavelength terminal into an electric signal. Means for extracting the amplification unit control signal by frequency separation, and means for converting the amplification unit monitoring signal into an optical signal of the second wavelength and inputting the signal to the second wavelength terminal of the fourth wavelength division type optical distributor. And light from a second wavelength terminal of the third wavelength separation type optical distributor. Optical repeater amplifier device according to claim into an electric signal by being configured and means for taking out the amplification unit monitors signal No.. 6. A receiving unit, a control unit, and an amplifying unit installed at separate positions, a first transmission path for sending a high-frequency communication signal from a base station received by the receiving unit to the control unit, and the high-frequency communication. A second transmission path for transmitting a signal from the control section to the amplification section so that the signal can be transmitted to the space by the amplification section, a third transmission path for transmitting a reception section control signal for the reception section from the control section to the reception section, A fourth transmission path for transmitting a reception section monitoring signal indicating the operation state of the section from the reception section to the control section, a fifth transmission path for transmitting an amplification section control signal for the amplification section from the control section to the amplification section, An optical repeater / amplifier having a sixth transmission path for transmitting an amplification unit monitoring signal indicating an operation state from the amplification unit to the control unit, wherein a first portion of the fifth transmission path and the first, third, and third transmission paths are provided. The fourth transmission path is composed of a first optical transmission path and receiving sections at both ends thereof. And a first and second wavelength separation type optical splitters respectively provided on the control unit side, frequency-multiplexing the amplification unit control signal and the reception unit control signal, and converting them into a second wavelength optical signal. Means for inputting to the second wavelength terminal of the second wavelength division type optical splitter, and means for outputting the first signal from the combining terminal of the second wavelength division type optical splitter via the first optical transmission line.
The optical signal of the second wavelength, which is input to the combining terminal of the wavelength division type optical splitter and further output from the second wavelength output terminal, is converted into an electric signal, and the reception unit control signal and the amplification unit control signal are converted. And a first wavelength having a wavelength different from the second wavelength by frequency-multiplexing the amplification unit control signal, the high-frequency communication signal received by the reception unit, and the reception unit monitoring signal extracted by this unit. Means for converting the optical signal into an optical signal and inputting the signal to the first wavelength terminal of the first wavelength division type optical splitter; and the first optical transmission line output from the combining terminal of the first wavelength division type optical splitter An optical splitter that is input to the combining terminal of the second wavelength-separating optical splitter via the second splitter, and further splits a part of the first wavelength optical signal output from the first wavelength output terminal. The optical signal split by this optical distributor is photoelectrically converted. After that, the receiving section monitor signal is frequency-separated and taken out, and the remaining portion of the fifth transmission path and the second transmission path receive the optical signal output from the optical distributor. A second optical transmission line to be transmitted to the unit, a photoelectric conversion unit for converting an optical signal transmitted through the optical transmission line into an electric signal, and the high-frequency communication signal and the amplification unit control signal from the output of this unit. And a means for extracting the signal by frequency separation.