JP2001177462A - Broadcast wireless system, master station facility configuring this system, relay station facility, and slave station facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To build up a broadcast wireless system where sound quality at loudspeaking in a slave station facility can be enhanced and a relay station can make broadcasting without being affected by the effect of crosstalk. SOLUTION: A master station controller 12 is provided with a control signal transmission means 121 and a control signal reception processing means 122. A relay station channel controller 22 is provided with a control signal reception processing means 221, a control signal transmission means 222, a reception time limit means 223, and a relay station control means 224, and an outdoor receiver 31 is provided with a control signal transmission means 314 and a control signal reception processing means 315. Thus, a master station facility 1 can make broadcasting by an open and close instruction of a relay station facility 2, the relay station can make broadcasting without being affected by crosstalk and supervises broadcasting of a slave station facility 3 and supervises the facility 3 by a control request. Moreover, the effect of crosstalk by the relay station is reduced, the master station facility 1 can acquire the monitor result so as to enhance the loudspeaking sound quality in the slave station facility 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay station control technique used in a disaster prevention radio system, a fire radio system, general radio broadcasting, and the like.

[0002]

2. Description of the Related Art A relay station control technique of this type is disclosed, for example, in Japanese Utility Model Publication No. 2-974. This technique is, as shown in FIG. 5, a configuration of a relay station selection circuit based on a tone signal system, and is divided into a circuit for the own station and a circuit for another station. That is, the circuit for the local station includes a tone filter 141 for the local station, a rectifier circuit 148 for the local station, a filter 151 for smoothing the output of the rectifier circuit 148 for the local station, a comparison circuit 152, a driver circuit 153, and And a tone squelch circuit 111. Similarly, the other station circuit includes the other station tone filters 142, 143, 1
44, a rectifier circuit 149 for another station, a filter 161 for smoothing the output of the rectifier circuit 149 for another station,
62, a driver circuit 163, and the disconnection relay 112 for disconnecting the other station circuit. This eliminates the necessity of a line failure due to a carrier wave wraparound or a line stop at the relay station, thereby improving the line reliability in operation.

[0003]

However, when a radio system is to be constructed by the above-described conventional technique, since a tone signal is superimposed in a radio section of the master station equipment and the relay station equipment, the relay station is superposed. A filter for removing tone superposition is required in the wireless device, and there is a possibility that sound quality may be degraded at the time of loudspeaking in slave station equipment represented by an outdoor receiver. Further, in the relay station equipment, when a reception signal from the first relay station radio apparatus and a reception signal from the second relay station radio apparatus simultaneously arrive, it is difficult to perform exclusive control.

The present invention has been made in view of such circumstances, and has as its object to improve the sound quality at the time of loudspeaking at the slave station equipment and to provide an excellent control apparatus having an exclusive control procedure at the relay station equipment. To provide an information radio system.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention receives a broadcast start signal from a master station operation device, controls transmission of a master station radio communication device, and performs relay control. To the station equipment, for instructing the opening and closing of the relay station, a control signal sending means for sending an MSK control signal of a predetermined format, and the master station wireless communication device received,
M in a predetermined format indicating a response from the relay station equipment
Control station receiving means for receiving an SK control signal and analyzing the SK control signal.

Further, the present invention provides a relay station equipment comprising the above-mentioned master station equipment, a relay station line controller having a control signal reception processing means and a control signal transmission means, a control signal transmission means and a control signal reception processing. This is a broadcast wireless system constructed by combining with slave station equipment having means.

[0007] Thus, broadcasting can be performed from the master station equipment by instructing opening and closing of the relay station equipment, and the relay station can perform broadcasting without being affected by interference. Further, it is possible to monitor the broadcast of the slave station equipment and to monitor the control request, and to obtain the monitoring result by the master station equipment while reducing the influence of the interference of the relay station. Therefore, it is possible to improve the sound quality at the time of loudspeaking in the slave station equipment, and to obtain an excellent broadcast radio system having an exclusive control procedure in the relay station equipment.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention receives a broadcast start signal from a master station operation device, controls transmission of a master station radio communication device, and provides a relay station equipment with a transmission control signal. On the other hand, a control signal transmitting means for transmitting an MSK control signal of a predetermined format for instructing opening and closing of the relay station, and a response from the relay station equipment received by the master station wireless communication apparatus are shown. And a control signal reception processing means for receiving an MSK control signal of a predetermined format and analyzing the control signal.

Thus, the master station equipment can process the opening and closing of the relay station equipment and process the response from the relay station equipment.

[0010] The invention according to claim 2 is represented by a first relay station radio communication apparatus for receiving a radio signal from a master station facility and transmitting a radio signal to the master station facility, and an outdoor receiver. Relay station radio communication device for receiving a radio signal from a slave station device and transmitting a radio signal to the slave station device, and a first relay station radio communication device and a second relay station radio communication device And a relay station line controller that performs transmission control on the first wireless communication apparatus and the second wireless communication apparatus by receiving a signal received by the first relay station. Wireless communication device and second
The control signal reception processing means for demodulating and analyzing the MSK control signal received by the relay station wireless communication device of the first relay station and the first relay station wireless communication device and the second relay station wireless communication device. And a control signal transmitting means for performing transmission control by generating an MSK control signal of a different format.

For this purpose, the relay station equipment is a master station equipment,
Alternatively, an opening and closing instruction from the slave station equipment is received, and this can be processed by the control signal processing means.

According to a third aspect of the present invention, there is provided a radio transmission unit for transmitting a radio signal, a radio reception unit for receiving a radio signal, an operation unit for performing a call operation to a master station facility, Control signal transmission means for performing transmission control of the radio transmission unit in response to an input from the unit, and transmitting an MSK control signal of a predetermined format for instructing the relay station equipment to open and close the relay station. And a control signal reception processing means for receiving an MSK control signal of a predetermined format, which indicates a response from the relay station equipment received by the radio receiving unit, and analyzes the MSK control signal.

Thus, by operating the operation unit of the slave station equipment, it is possible to instruct the relay station equipment to open or close the relay station and to process a response signal from the relay station.

The invention described in claim 4 is the same as the claim 2.
In the relay station equipment described in the above, the relay station line control device,
Receiving a control signal indicating a monitoring control request of the slave station equipment, receiving time limit means for permitting the second relay station radio communication apparatus to receive the radio signal only for a predetermined time, and The means demodulates and analyzes the MSK control signal transmitted from the master station equipment and indicating the monitoring control request of the slave station equipment.

[0015] With this, when the MSK control signal indicating the monitoring control request of the slave station equipment is received from the master station equipment, the wireless communication is performed only for a predetermined time due to the receivable time limit from the second relay station wireless communication device. Signal reception can be permitted.

The invention described in claim 5 is the same as the claim 2.
In the relay station equipment described in the above, the relay station line control device,
After receiving a control signal indicating a request to open the relay station equipment transmitted from the master station equipment, permitting the signal received by the first relay station wireless communication apparatus to relay to the second relay station wireless communication apparatus, And relay control for prohibiting signal relay from the second relay station wireless communication device to the first relay station wireless communication device until the first relay station wireless communication device receives a wireless signal. Means for receiving a request for releasing the relay station equipment transmitted from the master station equipment.
It is characterized in that the control signal is demodulated and analyzed.

Thus, when the MSK signal indicating the release request from the master station equipment is received, the reception signal from the second relay station radio communication apparatus is changed to the reception signal from the first relay station radio communication apparatus. It is possible to create a regulation that only relays after relaying.

The invention described in claim 6 is the same as the claim 2.
3. The relay station equipment according to claim 1, further comprising a third relay station radio communication device that receives a radio signal from the second slave station equipment and transmits a radio signal to the second slave station equipment, and includes a control signal reception process. The means demodulates and analyzes the MSK control signal indicating the relay station facility release request transmitted from the master station equipment, and analyzes the MSK control signal. MSK indicating a request to open the second slave station equipment
A transmission is controlled by generating a control signal.

That is, in the present invention, another relay station area can be configured by further adding a third relay station radio apparatus to the relay station equipment according to claim 2.

The invention according to claim 7 is an invention of a broadcast radio system. That is, it is a broadcast radio system configured by the master station equipment described in claim 1, the relay station equipment described in claim 2, and the slave station equipment described in claim 3. Further, the invention according to claim 8 is the broadcast radio system according to claim 7, wherein a relay station equipment is provided.
It is configured as follows. According to a ninth aspect of the present invention, in the broadcast wireless system according to the seventh aspect,
The relay station equipment is configured as in claim 5. A tenth aspect of the present invention is the broadcast radio system according to the seventh aspect, wherein the relay station equipment is configured as in the sixth aspect.

That is, by using the broadcast radio system having such a configuration, it is possible to broadcast from the master station equipment according to the instruction to open and close the relay station equipment, and to prevent the relay station from being affected by interference. Can be broadcast without.
Further, it is possible to monitor the broadcast of the slave station equipment and to monitor the control request, and to obtain the monitoring result by the master station equipment while reducing the influence of the interference of the relay station. Therefore, it is possible to improve the sound quality at the time of loudspeaking in the slave station equipment, and to obtain an excellent broadcast radio system having an exclusive control procedure in the relay station equipment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration block diagram of a broadcast wireless system according to an embodiment of the present invention. Normally, this system is used as a configuration for a disaster prevention radio system, a fire radio system, a general radio horizontal broadcast, and the like.

In FIG. 1, a master station equipment 1 includes a master station radio communication device 11 for inputting and outputting radio waves, and a master station operation device having a function of issuing an instruction to open or close a relay station when broadcasting. And 12.

The master station massaging device 12 is a master station wireless communication device 1
Control signal sending means 121 for sending the MSK control signal of a predetermined format for performing the transmission control of 1 and instructing the relay station equipment 2 to open and close the relay station;
Control signal reception processing means 122 is provided for receiving a MSK control signal of a predetermined format, which indicates a response from the relay station equipment 2 received by the master station wireless communication apparatus 11, and analyzing the MSK control signal.

The relay station equipment 2 receives a radio signal from the master station equipment 1 and transmits a radio signal to the master station equipment 1. A second relay station wireless communication device 23 for receiving the wireless signal of the second relay station and transmitting the wireless signal to the slave station equipment;
Relay station line control for inputting a signal received by the relay station wireless communication apparatus 21 and the second relay station wireless communication apparatus 23 and performing transmission control on the first wireless communication apparatus 21 and the second wireless communication apparatus 23 And a device 22.

The relay station line control device 22 comprises a first relay station radio communication device 21 and a second relay station radio communication device 23.
Demodulates the received MSK control signal and analyzes the control signal reception processing means 221 and the first relay station radio communication device 21 and the second relay station radio communication device 23 in a predetermined format. Control signal sending means 222 for generating an MSK control signal and performing transmission control.

The relay station line control device 22 transmits the signal demodulated by the control signal reception processing means 221 to the slave station equipment 3.
After receiving the control signal indicating the monitoring control request of the second relay station wireless communication device 23 for a predetermined time only.
Time limiter 223 for permitting reception of a radio signal to
Is also provided.

Further, when the signal demodulated by the control signal reception processing means 221 has been received after receiving the control signal indicating the release request, the first relay station radio communication device 21 Until the received signal is allowed to be relayed to the second relay station radio communication device 23 and the first relay station radio equipment 21 receives the radio signal, the first relay station radio equipment 23 receives the first signal from the second relay station radio equipment 23. Station control means 22 for controlling so as to prohibit signal relay to relay station radio communication apparatus 21
4 is also provided.

The slave station equipment 3 is generally represented by an outdoor receiver 31 and has a radio transmitting unit 311 for transmitting a radio signal, a radio receiving unit 312 for receiving a radio signal, and a calling operation for the master station equipment 1. And an operation unit 313 for performing the operation.

Further, the outdoor reception side 31 is connected to the operation unit 313.
The transmission of the wireless transmission unit 311 is controlled by the input from the
Control signal sending means 314 for sending an MSK control signal of a predetermined format for instructing relay station equipment 2 to open and close the relay station, and relay station equipment 2 received by radio receiving section 312 And a control signal reception processing unit 315 for receiving an MSK control signal of a predetermined format, which indicates a response from the MSK, and analyzing the control signal.

Next, the relay station control by the broadcast operation of the disaster prevention radio system in the broadcast radio system shown in FIG. 1 will be described using a sequence chart diagram. FIG.
It is a sequence chart figure of the broadcast operation by relay control in the disaster prevention wireless system according to the embodiment of the present invention.

In FIG. 2, first, a control signal of a relay station release request 41 is transmitted from the control signal transmitting means 121 of the master station operating device 12 to the relay station equipment 2. The signal of the relay station release request 41 permits the relay from the first relay station wireless communication device 21 to the second relay station wireless communication device 23 by the control signal reception control means 221 of the relay station line control device 22. And a relay station control means 224 that does not accept an incoming call from the second relay station wireless communication device 23 until the broadcast 43 from the first relay station wireless communication device 21 to the slave station equipment 3 is completed. I do.

Then, a response 42 indicating that the relay station control means 224 has functioned is sent to the control signal transmitting means 222.
Is transmitted to the master station equipment 1 via. In addition, since the relay station control unit 224 does not relay the interference wave 46, the broadcast 43 to the slave station equipment 3 can be reliably performed.

Next, in order to close the relay station, a signal of a relay station closing request 44 is sent from the control signal sending means 121 of the master station operating device 12. The signal of the relay station blocking request 44 is processed by the control signal reception control processing means 221 of the relay station line controller 22 to place the relay station in the blocking state.

The relay station line controller 22 sends a response 45 signal from the control signal sending means 222 to the master station equipment 1. Then, the master station operating device 12 confirms that the relay station has been closed by processing the signal of the response 45 by the control signal reception processing means 122.

As described above, according to the embodiment of the present invention, the control signal transmitting means 12
1, a control signal reception processing means 122, a control signal reception processing means 221, a control signal transmission means 222, and a relay station control means 224 are provided in the relay station line control device 22, and a control signal is provided in the outdoor receiver 31. By providing the transmission means 314 and the control signal reception processing means 315, it is possible to perform broadcasting in response to an instruction to open and close the relay station, and to prevent a situation in which broadcasting cannot be performed due to interference of the relay station.

Next, with reference to the sequence chart of FIG. 3, the relay station control by the broadcast monitoring of the disaster prevention radio system will be described. FIG. 3 is a sequence chart of a broadcast monitoring operation by relay control in the disaster prevention wireless system according to the embodiment of the present invention.

In FIG. 3, first, a control signal of a relay station release request 41 is transmitted from the control signal transmitting means 121 of the master station operating device 12 to the relay station equipment 2. Then
The signal of the relay station release request 41 is transmitted to the relay station line controller 2
The second control signal reception control means 221 permits the relay from the first relay station wireless communication device 21 to the second relay station wireless communication device 23 and receives the call from the first relay station wireless communication device 21. Until the signal is completed, the relay station control means 224 functions so as not to accept the incoming call from the second relay station wireless communication device 23.

Then, a response 42 indicating that the relay station control means 224 has functioned is sent to the control signal transmission means 222.
Is transmitted to the master station equipment 1 via. In addition, since the relay station control unit 224 operates, the relay of the interference wave 46 is not performed, so that the broadcast 43 (see FIG. 2) to the slave station equipment 3 can be reliably performed.

Next, a monitoring control request 47 to the slave station equipment 3 is sent from the control signal sending means 121 of the master station operating device 12 to the relay station equipment 2. When the monitoring control request 47 is recognized by the control signal reception processing means 221 of the relay station line controller 22,
Is a request 47 for monitoring and controlling the slave station equipment 3 to the slave station equipment 3.
Reception time limiting means 2 for relaying the signal of
23 restricts unnecessary relay control as much as possible.
When the control signal reception processing unit 221 recognizes the signal of the monitoring control request 47 of the slave station equipment 3, the outdoor reception side 31 of the slave station equipment 3 monitors and controls the presence or absence of the broadcast sound and the result of the monitoring item. The result 48 is returned to the master station facility 1 as a signal.

That is, the relay station line control device 22 relays the signal of the monitoring control result 48 from the second relay station radio communication device 23 to the first relay station radio communication device 21 to the master station equipment 1. Then, the master station operating device 12 analyzes the monitoring control result 48 by the control signal transmitting means 121 and acquires the monitoring result. When there are a plurality of outdoor receivers 31, the monitoring control request 47 of the slave station equipment 3 is repeatedly executed.

Finally, as described with reference to FIG.
In order to close the relay station, a signal of a relay station block request 44 is sent from the control signal sending means 121 of the master station operating device 12. The signal of the relay station blocking request 44 is processed by the control signal reception processing means 221 of the relay station line controller 22 to place the relay station in a blocked state.

The relay station line control device 22 sends a response 45 signal from the control signal sending means 222 to the master station equipment 1. Then, the master station operating device 12 processes the signal of the response 45 by the control signal receiving processor 122 and confirms that the relay station has been closed.

As described above, according to the embodiment of the broadcast monitoring operation, by adding the reception time limit means 223 to the relay station line controller 22 in addition to the processing items described in FIG. Station 3 by opening and closing instructions
, And monitoring by a control request can be performed, and the master station equipment 1 can obtain a monitoring result with less influence of interference of the relay station.

In the above description, the form of broadcasting and broadcast monitoring of the disaster prevention radio system has been described with respect to an example in which the relay station equipment is configured with a single radio for the slave station equipment, but the present invention is not limited thereto. Various modifications are possible without limitation. For example, as another configuration example, as shown in FIG. 4, even if the relay station equipment 2 is configured with two radios for the second slave station equipment 52, the same implementation as described above can be performed. Needless to say.

[0046]

As described above, according to the present invention, control signal sending means 121 and control signal reception processing means 122 are provided in master station operating device 12, and control signal reception processing is provided in relay station line control device 22. Means 221 and control signal sending means 222
And the reception time limit means 223 and the relay station control means 224, and further, by providing the outdoor receiver 3 with the control signal transmission means 314 and the control signal reception processing means 315, the master station equipment 1 Broadcasting can be performed by opening and closing instructions, and further, the relay station can broadcast without being affected by interference. In addition, it is possible to monitor the slave station equipment 3 according to the broadcast monitoring control request, and it is possible to reduce the influence of interference of the relay station and obtain the monitoring result in the master station equipment 1. As a result, it is possible to improve the sound quality at the time of loudspeaking in the slave station equipment, and it is possible to obtain an excellent broadcast radio system having exclusive control means in the relay station equipment.

[Brief description of the drawings]

FIG. 1 is a block diagram of a broadcast wireless system according to an embodiment of the present invention.

FIG. 2 is a sequence chart of a broadcast operation by relay control in the disaster prevention wireless system according to the embodiment of the present invention;

FIG. 3 is a sequence chart of a broadcast monitoring operation by relay control in the disaster prevention wireless system according to the embodiment of the present invention;

FIG. 4 is a system block diagram in a case where a third relay station wireless device is mounted on relay station equipment in a disaster prevention wireless system according to another embodiment of the present invention;

FIG. 5 is a conventional tone signal type relay station selection circuit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 master station equipment 11 master station wireless communication device 12 master station operation device 121 control signal sending means 122 control signal reception processing means 2 relay station equipment 21 first relay station wireless communication device 22 relay station control section 221 control signal reception processing means 222 control signal sending means 223 reception time limit means 224 relay station control means 23 second relay station wireless communication device 24 third relay station wireless communication device 3 slave station equipment 31 outdoor receiving device 311 wireless sending unit 312 wireless receiving unit 313 operation Unit 314 Control signal sending means 315 Control signal reception processing means 41 Relay station release request 42 Response 43 Broadcast to slave station equipment 44 Relay station block request 45 Response 46 Interference wave 47 Monitoring control request of slave station equipment 47 Monitoring control result 51 first slave station equipment 52 second slave station equipment

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Mitsunori Nakata 4-3-1 Tsunashimahigashi, Kohoku-ku, Yokohama-shi, Kanagawa F-term within Matsushita Communication Industrial Co., Ltd. 5C087 AA37 BB18 BB39 BB73 DD03 EE05 EE14 FF01 FF02 FF03 FF17 GG06 GG66 5K067 AA03 AA23 BB15 CC14 DD13 DD24 EE02 EE06 EE10 GG01 GG11 LL01 5K072 AA04 AA22 BB14 CC05 DD16 DD17 EE05 FF03 FF04 FF05 GG12 GG13 GG14 GG36 HH01

Claims (10)

[Claims] 1. A broadcast start signal from a master station operation device, a transmission control of a master station wireless communication device, and an instruction to open and close a relay station to relay station equipment. Control signal transmitting means for transmitting an MSK control signal in a predetermined format; and receiving a MSK control signal in a predetermined format, which is received by the master station wireless communication device and indicates a response from the relay station equipment. And a control signal reception processing means for analyzing the same. 2. A first relay station radio communication device for receiving a radio signal from a master station device and transmitting a radio signal to the master station device, and a radio signal from a slave station device represented by an outdoor receiver. A second relay station wireless communication device that receives a signal and transmits a wireless signal to the slave station equipment; and a signal received by the first relay station wireless communication device and the second relay station wireless communication device. And a relay station line control device for performing transmission control on the first wireless communication device and the second wireless communication device, wherein the relay station line control device comprises: Control signal reception processing means for demodulating and analyzing the MSK control signal received by the radio communication device and the second relay station radio communication device; and the first relay station radio communication device and the second relay station Wireless communication device Against a control signal sending means for performing transmission control to generate the MSK control signal of a predetermined format, the relay station equipment characterized by comprising a. 3. A radio transmission unit for transmitting a radio signal, a radio reception unit for receiving a radio signal, an operation unit for performing a call operation to a master station equipment, and an input from the operation unit, A control signal transmitting unit for performing transmission control of a transmitting unit and transmitting an MSK control signal of a predetermined format for instructing the relay station equipment to open and close the relay station; and A slave station equipment comprising: a control signal reception processing means for receiving a received MSK control signal indicating a response from the relay station equipment and having a predetermined format and analyzing the control signal. 4. The relay station line control device, after receiving a control signal indicating a monitoring control request of the slave station equipment, causes the second relay station radio communication device to receive a radio signal only for a predetermined time. A reception time limit means for permitting, the control signal reception processing means demodulating the MSK control signal indicating the monitoring control request of the slave station equipment transmitted from the master station equipment,
The relay station equipment according to claim 2, wherein the relay station equipment is analyzed. 5. The relay station line control device, after receiving a control signal transmitted from the master station device and indicating a relay station facility release request, transmits the signal received by the first relay station radio communication device to the second relay station. A second relay station wireless communication device that transmits a signal to the first relay station wireless communication device until the first relay station wireless communication device receives a wireless signal. Relay control means for controlling so as to prohibit relaying of a signal to the apparatus, wherein the control signal reception processing means demodulates an MSK control signal transmitted from the master station equipment and indicating a request to open the relay station equipment, The relay station equipment according to claim 2, wherein the relay station equipment is analyzed. 6. Receiving a radio signal from the second slave station equipment,
And a third relay station radio communication device for transmitting a radio signal to the second slave station equipment, wherein the control signal reception processing means controls the MSK control indicating the release request of the relay station equipment transmitted from the master station equipment. The signal is demodulated and analyzed, and the control signal transmitting means transmits to the third relay station radio communication control device an MS indicating a request to open the second slave station equipment.
The relay station equipment according to claim 2, wherein a K control signal is generated to perform transmission control. 7. A relay start signal received from a master station operation device to control transmission of a master station wireless communication device and to instruct relay station equipment to open and close a relay station. A control signal transmitting means for transmitting an MSK control signal of a predetermined format, and receiving a MSK control signal of a predetermined format indicating a response from the relay station equipment received by the master station radio communication apparatus. And a master station equipment comprising control signal reception processing means for analyzing the signal, and a first relay station radio communication for receiving a radio signal from the master station equipment and transmitting a radio signal to the master station equipment. An apparatus, a second relay station wireless communication apparatus for receiving a wireless signal from a slave station equipment represented by an outdoor receiver, and transmitting a wireless signal to the slave station equipment, and the first relay station wireless communication Apparatus and said second relay A radio communication apparatus receives a signal received, and is configured with a relay station line control apparatus that performs transmission control on the first radio communication apparatus and the second radio communication apparatus. ,
Control signal reception processing means for demodulating and analyzing the MSK control signal received by the first relay station radio communication device and the second relay station radio communication device, and the first relay station radio communication device; A relay station equipment comprising control signal transmitting means for generating an MSK control signal of a predetermined format and performing transmission control for the second relay station radio communication apparatus; and a radio transmission section for transmitting a radio signal And a radio receiving unit that receives a radio signal, an operation unit for performing a call operation to the master station device, and an input from the operation unit, performs transmission control of the radio transmission unit, and performs the relay station device. Against
Control signal transmitting means for transmitting an MSK control signal of a predetermined format for instructing opening and closing of the relay station, and a predetermined signal indicating a response from the relay station equipment received by the radio receiving unit. And a slave station equipment having control signal reception processing means for receiving an MSK control signal of a predetermined format and analyzing the same. 8. The relay station equipment, when its own relay station line controller receives a control signal indicating a monitoring control request of the slave station equipment, only for a predetermined time,
The second relay station wireless communication device includes reception time limit means for permitting reception of a radio signal, and the control signal reception processing means includes:
8. The broadcast radio system according to claim 7, wherein an MSK control signal indicating a monitoring control request of the slave station equipment transmitted from the master station equipment is demodulated and analyzed. 9. The relay station equipment, after its own relay station line controller receives a control signal transmitted from the master station and indicating a request to open the relay station equipment,
Relaying the signal received by the second relay station wireless communication device to the second relay station wireless communication device, and the second relay station wireless communication device receives the wireless signal until the first relay station wireless communication device receives the wireless signal. Relay control means for controlling so as to prohibit signal relay from the relay station wireless communication device to the first relay station wireless communication device, and control signal reception processing means, wherein the control signal reception processing means transmitted from the master station equipment The broadcast radio system according to claim 7, wherein an MSK control signal indicating a request to open the relay station equipment is demodulated and analyzed. 10. A relay station equipment comprising: a third relay station wireless communication device for receiving a wireless signal from the second slave station equipment and transmitting a wireless signal to the second slave station equipment; The reception processing means demodulates and analyzes the MSK control signal transmitted from the master station equipment and indicating the request to open the relay station equipment, and analyzes the MSK control signal. The control signal sending means transmits the MSK control signal to the third relay station radio communication control device. On the other hand, an MS indicating a request to release the second slave station equipment
The broadcast radio system according to claim 7, wherein a K control signal is generated and transmission control is performed.