JP4669018B2 - General base station, relay radio equipment, and base station - Google Patents

Description

  The present invention relates to a radio communication system and a radio communication method, and more particularly, to a radio communication system and a radio communication method in which information communication is efficiently performed in a communication system in which a plurality of radio communication systems are integrated with high reliability.

  As an information transmission method in a conventional information transmission system, for example, a municipal disaster prevention digital communication system is well known. This digital communication system for municipal disaster prevention uses voice messages between a master station (or base station) and an outdoor slave station or a door-to-door receiver. This is a transmission method, and there is a method of transmitting emergency information and the like by simultaneous notification.

  In addition, the above-described municipal disaster prevention digital communication system also has a function of an administrative public information system (for example, see Patent Document 1). This will be described with reference to FIG. In FIG. 7, 701 is a character display sending device, 702 is a console, 703 is a radio, 704 is a receiver of an outdoor loudspeaker, 705 is a character display equipped in the outdoor loudspeaker, and 706 is For example, a door-to-door receiver 707 installed in each home is a character display provided in the door-to-door receiver.

  The character display transmission device 701, the console 702, and the wireless device 703 are usually installed in a building of an administrative authority such as a disaster prevention center, city hall, or town / village office, and constitute a master station device (also referred to as a base station). The outdoor loudspeaker receiver 704 and the character display 705 are installed outdoors in the administrative district to form a slave station device, and the door-to-door receiver 706 and the character display 707 are installed in facilities and houses in the administrative district. It is installed and constitutes a slave station device. A function for exchanging electronic mails via the Internet 709 and information terminal devices 708-1 and 708-2 such as a personal computer and a cellular phone with a mail function is added to the character display transmission device 701. The character display transmission device 701 has a function of transmitting and receiving e-mails via the Internet 709.

  Therefore, the municipal disaster prevention digital communication system as described above is generally provided independently for each municipality of the administrative division, and each system is configured and operated independently. Has been. However, recently, mergers of municipalities, etc. have been performed, which may cause the integration of disaster prevention systems of two or more different municipalities and districts. In such a case, there is a problem that the existing disaster prevention system cannot be easily integrated. For example, the wireless carrier used in each system is different, and the timing from when a local station is called up in a loudspeaker notification process to when reporting is different depending on the broadcasting system of each municipality, etc. Even if a merger is made, there is a problem that the existing disaster prevention system cannot be easily integrated. Therefore, there is a strong demand for a disaster prevention system that can be easily integrated with the merger of municipalities.

JP 2004-297242 A

  As mentioned above, municipalities have recently been merged, and as a result, two or more different municipalities and district disaster prevention systems need to be integrated, but the radio carriers used in each system are different. There is a strong demand for a disaster prevention system that can be easily integrated with the merger of cities, towns, and villages. Yes.

An object of the present invention is to provide a general base station, a relay radio equipment, and a base station that can easily integrate an existing disaster prevention system in association with a merger of municipalities.

Another object of the present invention is to provide a general base station, a relay radio equipment, and a base station capable of reliably transmitting information in an existing municipal disaster prevention administrative radio system accompanying the merger of municipalities. That is.

Still another object of the present invention is to provide a general base station, a relay radio equipment, and a base station that improve the reliability of a disaster prevention system that is integrated in association with a municipal merger.

  The radio communication system of the present invention has at least first and second disaster prevention radio systems having different communication areas, and the first disaster prevention radio system is coupled to the general base station and the general base station by radio communication. The second disaster prevention radio system includes a base station and a plurality of slave stations coupled to the base station by radio communication, and the communication station of the integrated base station A relay radio equipment having a transmission path capable of communicating with the base station of the second disaster prevention radio system, wherein the relay radio equipment is configured to transmit radio communication information from the general base station to the base station; Is done.

  In the radio communication system of the present invention, when the relay radio equipment communicates with the base station of the second disaster prevention radio system, the radio carrier used in the first and second disaster prevention radio systems is different. It is configured to use a wireless carrier.

  In the wireless communication system of the present invention, the overall base station includes a storage unit, and at least a reception confirmation table for monitoring a reception confirmation signal from the base station of the second disaster prevention wireless system is stored in the storage unit. The reception confirmation table stored in the storage unit stores the confirmation signal transmitted from the base station and stored in the storage unit. Configured to confirm based on

  In the radio communication system of the present invention, the overall base station has a storage unit, and registers at least a plurality of slave stations that constitute the first and second disaster prevention radio systems in the storage unit. When the supervising base station transmits emergency disaster prevention information by simultaneous notification, the command confirmation information from the slave station is registered in the command registration table.

  Furthermore, the present invention includes at least first and second disaster prevention radio systems having communication areas different from each other, and the first disaster prevention radio system is coupled to the control base station and the control base station by radio communication. The second disaster prevention radio system has a plurality of slave stations coupled to a base station and the base station by radio communication, and the second disaster prevention radio system has a second base station within a communication area of the central base station. In the radio system having a relay radio equipment having a transmission path capable of communicating with the base station of the disaster prevention radio system, the relay radio equipment transmits call information of the broadcast message, and the relay radio equipment issues the broadcast message. The call information is received, the received signal is transmitted to the base station, the base station transmits a reception confirmation signal to the relay radio equipment, and the relay radio equipment sends the reception confirmation signal to the supervising base station. Feature to send Wireless communication method for.

  As described above, according to the present invention, when integrating disaster prevention systems in conjunction with municipal mergers, it is possible to realize a communication system that can be easily integrated even with disaster prevention systems configured with different specifications. In addition, even when such integration is performed, information can be reliably transmitted, and a highly reliable communication system can be configured.

  An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a diagram for explaining a schematic configuration of an embodiment of the present invention. In FIG. 1, reference numeral 101 denotes a disaster prevention communication system in a municipality, for example, an A district. Reference numeral 102 denotes a disaster prevention communication system in a municipality, for example, in the B district, and reference numeral 103 denotes a disaster prevention communication system in a municipality, for example, in the C district. In the present embodiment, the disaster prevention communication system of the three districts of the A district, the B district, and the C district is shown, but it is not limited to this, and it goes without saying that there are various scales. Yes.

  First, the disaster prevention communication system 101 in the A area will be described. The disaster prevention radio system 101 includes a master station (also referred to as a base station) 104 and a plurality of outdoor slave stations 105-1,... (When outdoor slave stations are collectively referred to as outdoor slave stations 105) and A plurality of individual receivers 106-1,... (Individual receivers are collectively referred to as individual receivers 106). Reference numeral 107 denotes a communication area of the master station 104 and is also called a communication zone of the master station 104. In addition, when a call from the master station 104 is communicated with each outdoor slave station 105 or each individual receiver 106 via a relay station (not shown), the communication area 107 of the master station 104 is further expanded. Needless to say. 108 and 109 are relay radio facilities located in the communication area 107 of the master station 104. Details of the relay radio equipment 108 and 109 will be described later.

  The master station 104 is installed in a government agency, for example, a municipal office or the like, and is generally called a base station of a disaster prevention radio system. The base station 104 includes a radio device 110, an operation console 111, and a storage unit 112. The console 111 is composed of a central processing unit such as a computer (hereinafter, the central processing unit is abbreviated as an console). The plurality of slave stations 105-1,... Receive transmission signals from the radio 110 of the base station 104. For example, emergency messages are voiced to the local residents by trumpet speakers 105-1a,. Notify or inform the residents who are outdoors using the character display device 105-1b. A plurality of individual receivers 106-1 are installed in each home, receive transmission signals from the radio 110 of the base station 104, and send emergency messages to the speakers 106-1a,. Is output by voice, or an emergency message is displayed on the character display device 106-1b,. The outdoor slave station 105 and the individual receiver 106 are also referred to as a wireless information terminal device or a slave station.

  The operation of the disaster prevention radio system 101 in the A area will be described. For example, when an earthquake occurs and the earthquake information is transmitted to the base station 104, the base station 104 operates the radio information terminal device, for example, each outdoor child, by operating the base station console 111, for example, as emergency information. Emergency disaster prevention information is transmitted to the station 105 and each individual receiver 106. The emergency disaster prevention information in this case is emergency disaster prevention information that conveys a caution or warning regarding the magnitude of the earthquake, the epicenter, or the tsunami. This emergency disaster prevention information is transmitted from the wireless device 110 to each outdoor slave station 105. Each outdoor slave station 105 receives this emergency disaster prevention information, and gives warnings, instructions, or details by voice, siren, or character display from the outdoor speaker 105-1a or the character display device 105-1b to the local residents outside. Communicate useful information. Similarly, this emergency disaster prevention information is also transmitted to the individual receiver 106 in each home and transmitted by the speaker 106-1a and the character display device 106-1b.

  The disaster prevention communication system 102 in the B area is the same as the disaster prevention communication system 101 in the A area. That is, the disaster prevention radio system 102 is referred to as a master station (or also referred to as a base station) 121 and a plurality of outdoor slave stations 122-1,. ) And a plurality of individual receivers 123-1,... (Individual receivers are collectively referred to as individual receivers 123). Reference numeral 124 denotes a communication area of the master station 121 and is also called a communication zone of the master station 121. The master station 121 is installed in an administrative institution, for example, a municipal office or the like, and is generally called a base station of a disaster prevention radio system. The base station 121 includes a wireless device 125, an operation console 126, and a storage unit 127. The console 126 is composed of a central processing unit such as a computer (hereinafter, the central processing unit is abbreviated as a console). A plurality of outdoor slave stations 122-1,..., A trumpet speaker 122-1a,..., A character display device 122-1b,. .., And character display devices 1123-1b,.

  The disaster prevention communication system 103 in the C area is the same as the disaster prevention communication system 101 in the A area. That is, the disaster prevention wireless system 103 is referred to as a master station (or also referred to as a base station) 131 and a plurality of outdoor slave stations 132-1,. ) And a plurality of individual receivers 133-1,... (When individual receivers are collectively referred to as individual receivers 133). Reference numeral 134 denotes a communication area of the parent station 131 and is also called a communication zone of the parent station 131. The master station 131 is installed in a government agency, for example, a municipal office or the like, and is generally called a base station of a disaster prevention radio system. The base station 131 includes a wireless device 135, an operation console 136, and a storage unit 137. The console 136 is composed of a central processing unit such as a computer (hereinafter, the central processing unit is abbreviated as a console). A plurality of outdoor slave stations 132-1,..., A trumpet speaker 132-1a,..., A character display device 132-1b,. Since the character display devices 133-1a,..., 133-1b,.

  The disaster prevention communication systems 101, 102, and 103 configured in this way are, for example, wireless carriers defined in ARIB STD-T86, for example, F1 in the downlink direction from the base station to the information terminal device (or the slave station), F1,..., One wave f1, f2,... Is used in the uplink direction from the information terminal device (or slave station) to the base station. Therefore, for example, the disaster prevention communication system 101 uses a pair wave of F1 in the downlink direction and f1 in the uplink direction, and the base station and the information terminal device transmit and receive. Similarly, the disaster prevention communication system 102 uses, for example, a pair wave of F3 in the down direction and f3 in the up direction. Similarly, the disaster prevention communication system 103 uses, for example, a pair wave of F5 in the downlink direction and f5 in the uplink direction, and the base station and the information terminal device transmit and receive. In this embodiment, the paired waves in the down direction F and the up direction f have been described. However, the present invention is not limited to this, and one wave or a plurality of waves can be used, and is set as appropriate depending on the system configuration. Is possible.

  Thus, the above-mentioned disaster prevention communication system 101 in the A area, the disaster prevention communication system 102 in the B area, and the disaster prevention communication system 103 in the C area are originally configured independently as disaster prevention communication systems in the municipalities. The stations 104, 121, and 131 are installed, for example, at a municipal office or the like, and each function independently as a disaster prevention communication system. However, when the districts A, B, and C are merged as described above, it is necessary to integrate the disaster prevention communication systems 101, 102, and 103. However, as described above, they are used in each system. For example, since the wireless carriers are different such as (F1, f1) (F3, f3) (F5, f5), they cannot be easily integrated. In addition, as described above, since the timing from when the information terminal device is called in the loudspeaking notification process until it becomes possible to report is different in each system, the disaster prevention radio systems 101, 102, 103 in the A district, B district, and C district are different. It is not easy to integrate. Moreover, it is only necessary to construct a completely new disaster prevention radio system that integrates the A district, B district, and C district, but a new disaster prevention radio system that expands the area usually requires enormous costs to construct the system. However, there is a problem that cannot be easily configured, and it is desired to construct a disaster prevention radio system using an existing disaster prevention radio system.

  The present invention constitutes a communication system for solving such problems. For this purpose, for example, relay radio facilities 108 and 109 are provided in the communication area 107 of the disaster prevention radio system 101 in the A area. A block diagram of a schematic configuration of one embodiment of the relay radio equipment 108 and 109 is shown in FIG. FIG. 2 shows the relay radio equipment 108, for example. Since the relay radio equipment 109 also differs only in the radio carrier that transmits and receives, detailed description is omitted. In FIG. 2, reference numeral 201 denotes a transmission / reception radio that transmits and receives using the downlink radio carrier F1 and the uplink radio carrier f1 from the base station 104 of the disaster prevention radio system 101 in the A area. Reference numeral 202 denotes a transmission / reception radio, which has a function of transmitting a signal of the radio carrier F1 received by the transmission / reception radio 201 to the base station 121 of the disaster prevention radio system 102 in the B area using, for example, the radio carrier f2. , Having a function of receiving a radio carrier f2 from the base station 121 of the disaster prevention radio system 102 in the B area. The radio carrier f2 is a different radio carrier that is not used in the disaster prevention radio system 101 in the A district and the disaster prevention radio system 102 in the B district in order to prevent interference with other radio carriers. In this embodiment, the transceiver 202 is used. However, if the information received by the receiver 201 can be transmitted to the base station 121 of the disaster prevention wireless system 102 in the B area, the microwave or It can also be configured by a wired transmission path (hereinafter collectively referred to as a transmission path). In the above embodiment, the signal transmission / reception between the transceiver radio 202 and the base station 121 has been described using one wave of the radio carrier f2, but two waves can also be used. Similarly, the relay radio equipment 109 is a relay radio equipment for communicating with the base station 131 of the disaster prevention radio system 103 in the C area, and the details are the same as the configuration of the relay radio equipment 108 except for the radio carrier. Are the same and will not be described.

  Next, a specific configuration of the base stations 104, 121, and 131 will be described with reference to FIG. FIG. 3A is a block diagram illustrating a schematic configuration of the base station 104. In this embodiment, the base station 104 of the disaster prevention radio system 101 in the A area is a base station of a radio system that integrates the disaster prevention radio system 102 in the B area and the disaster prevention radio system 103 in the C area. It will be called 104. The central base station 104 has a radio 110, a console 111, and a storage unit 112. The wireless device 110 includes a transmission / reception wireless device 301 that performs communication with the information terminal device in the communication area 107 of the disaster prevention wireless system 101 in the A area. The console 111 includes a processing device 302 that controls the operation of the wireless system, a display unit 303, and an operation unit 304. And the radio | wireless machine 301 for transmission / reception of the radio | wireless machine 110 is the information terminal device 105-1, ..., 106-1, ... in the communication area 107 of the disaster prevention radio | wireless system 101 of A area, and relay radio equipment 108,109, -Send and receive.

  FIG. 3B is a block diagram illustrating a schematic configuration of the base stations 121 and 131. Note that the base stations 121 and 131 have the same configuration except for the radio carriers used, and therefore the base station 121 will be described here. The base station 121 includes a wireless device 125, an operation console 126, and a storage unit 127. The wireless device 125 is a transmission / reception wireless device that performs communication using a pair wave of the information terminal devices 122-1,..., 123-1, ..., and the wireless carriers F3 and f3 in the communication area 124 of the disaster prevention wireless system 102 in the B district. And a transmission / reception wireless device 306 that transmits / receives data using the wireless carrier f2 with the transmission / reception wireless device 202 of the relay wireless facility 108. The console 126 includes a processing device 307 that controls the operation of the wireless system, a display unit 308, and an operation unit 309. And the radio | wireless machine 305 for transmission / reception of the radio | wireless machine 125 transmits / receives with the information terminal device 122-1, ..., 123-1, ... in the communication area 124 of the disaster prevention radio | wireless system 102 of B area.

  Next, the operation of the wireless system shown in FIG. 1 will be described with reference to FIG. FIG. 6 is a flowchart for explaining the operation of the wireless system shown in FIG. In addition, the same code | symbol is attached | subjected to the same thing as FIG. 6 describes the disaster prevention radio system 101 in the A area and the disaster prevention radio system 102 in the B area, the same applies to the disaster prevention radio system 103 in the C area.

  In FIG. 6, first, the central base station 104 and the base station 121 periodically transmit a sky line signal (not shown) to the slave stations located in each communication area. The signal is received and synchronized. In this state, the operation of the disaster prevention radio system will be described. For example, when an earthquake occurs and the earthquake information is transmitted to the disaster prevention center, the general base station 104 installed in the disaster prevention center operates the operation unit 304 of the console 111 of the base station to send emergency information to each slave station 105. -1, 106-1,... Are transmitted using the control channel of the wireless carrier F1 (step 601). A switching signal to the designated communication channel is attached to the paging signal for the simultaneous notification. FIG. 4 shows the frame configuration of the control channel to which the switching signal to the designated communication channel is attached.

  FIG. 4 shows a frame structure of a control channel defined by ARIB STD-T86. R: burst transient response ramp time, AP: AGC preamble, SW: synchronization word, C: channel type, CAC: control signal (BCCH, PCH, SCCH), P: pilot symbol (usually 1 symbol), G: guard time, which consists of a total of 148 bits. The paging signal for the above-described simultaneous notification is transmitted to each slave station, for example, the slave station 106-1, using the control signal CAC. The slave station, for example, the slave station 106-1 that has received the paging signal of the simultaneous notification, operates the operation unit (not shown) of the receiver of the local station to switch to the designated communication channel (step 603). .

On the other hand, since the relay radio equipment 108 is located in the communication area of the disaster prevention radio system 101 in the A area, the relay radio equipment 108 receives a paging signal for simultaneous notification from the general base station 104 (step 602). The relay radio equipment 108 that has received the paging signal of the general notification wirelessly transmits the paging signal of the general notification to the transmission / reception radio 306 of the radio 125 of the base station 121 of the disaster prevention radio system 102 in the B area. Transmission is performed using the control channel of carrier f2 (step 604).

  When the base station 121 that has received the broadcast call signal detects the broadcast call signal (step 605), the base station 121 moves the child station 122- located in the communication area 124 of the disaster prevention radio system 102 in the B district. 1, 123-1,... Are transmitted using the control channel of the wireless carrier F3 (step 606).

  Then, the base station 121 that has detected the paging signal of the broadcast message transmits a flag B indicating that the broadcast message has been received to the transceiver radio 202 of the relay radio equipment 108 using the control channel of the radio carrier f2 (step 607).

  When the relay radio equipment 108 receives the flag B indicating that the broadcast message has been received, it transmits the transmission / reception radio 201 to the transmission / reception radio 301 of the base station 104 using the control channel of the radio carrier f1 ( Step 608).

  The overall base station 104 confirms reception from the base station 121 (step 609). This confirmation method will be described below. First, the overall base station 104 has a storage unit 112 as shown in FIG. In the storage unit 112, a reception confirmation table of base stations in each district is registered as shown in Table 1.

表１において、地区名は、例えば、既存の防災無線システムが構築されている地区を示している。受信確認有無は、各基地局１２１、１３１、・・・から送信されてくる確認の信号が受信された場合、例えば、上述の実施例では、フラグＢ受信が書込まれる。表１では、Ｂ地区、Ｃ地区の基地局からの受信が確認され、Ｘ地区の受信が確認されていない状態が示されている。なお、防災無線システムでは、災害情報の一斉呼出は、地域住人の避難、誘導等の信頼性に関係するので、極めて重要である。従って、統括基地局１０４では、一斉通報の発呼信号を送信（ステップ６０１）した時点から所定の時間経過後、例えば、２秒〜１０秒の期間に各基地局からの受信確認信号を統括基地局１０４の処理装置３０２が監視し、各基地局１２１、１３１、・・・からの受信確認信号の受信を確認する。なお、統括基地局１０４で各基地局１２１、１３１、・・・からの受信信号を確認する期間（２秒〜１０秒程度）経過後、次に、緊急防災情報を送信するが、この確認期間は、２秒〜１０秒であれば十分である。但し、この期間は、統合システムの規模あるいはシステム構成により適宜実験的に定めることができることはいうまでもない。

In Table 1, the district name indicates, for example, a district where an existing disaster prevention radio system is constructed. As for the presence / absence of reception confirmation, when a confirmation signal transmitted from each base station 121, 131,... Is received, for example, in the above-described embodiment, flag B reception is written. Table 1 shows a state in which reception from base stations in the B district and the C district is confirmed and reception in the X district is not confirmed. In the disaster prevention radio system, simultaneous calling of disaster information is extremely important because it relates to the reliability of evacuation and guidance of local residents. Therefore, the general base station 104, transmits a call signal of the broadcast (step 601) the after a predetermined time from the time, for example, administration base an acknowledgment signal from each base station in a period of 2 seconds to 10 seconds The processing device 302 of the station 104 monitors and confirms reception of reception confirmation signals from the base stations 121, 131,. In addition, after the period (about 2 seconds to 10 seconds) for confirming the received signal from each base station 121, 131,... At the central base station 104, emergency disaster prevention information is transmitted next. 2 seconds to 10 seconds is sufficient. However, it is needless to say that this period can be appropriately determined experimentally depending on the scale of the integrated system or the system configuration.

  In addition, when the slave station located in the wireless area 124 of the B area receives a call signal for simultaneous notification from the base station 121, the slave stations 122-1, 123-1,. Then, the operation unit (not shown) of the receiver of its own station is operated to switch to the designated communication channel (step 610).

  Next, the central base station 104 transmits emergency disaster prevention information using the communication channel of the wireless carrier F1 (step 611). The frame configuration of the communication channel in this case is shown in FIG. FIG. 4 shows a frame configuration of a communication channel defined by ARIB STD-T86. R: burst transient response ramp time, SW: synchronization word, C: channel type, TCH: traffic channel, FACCH: high-speed accompanying Channel (call and report information), P: pilot symbol (usually 1 symbol), G: guard time, and is composed of a total of 148 bits. And the emergency disaster prevention information mentioned above is transmitted by the high-speed accompanying channel FACCH.

The emergency disaster prevention information in this case is emergency disaster prevention information that conveys a caution or warning regarding the magnitude of the earthquake, the epicenter, or the tsunami. This emergency disaster prevention information is transmitted from the transceiver radio 301 of the central base station 104 to each of the slave stations 105-1, 106-1,. Each slave station receives this emergency disaster prevention information, and gives warnings, instructions, or detailed information by voice, siren, or character display from the outdoor speaker 105-1a or the character display device 105-1b to the local residents outside. Communicate etc. Similarly, this emergency disaster prevention information is also transmitted to the individual receiver 106-1 at each home, and is transmitted by the speaker 106-1a and the character display device 106-1b.

  The emergency disaster prevention information is also received by the relay radio equipment 108 located in the communication area 107 of the disaster prevention radio system 101 in the A area (step 612). The transmission / reception radio device 202 of the relay radio equipment 108 that has received this emergency disaster prevention information transmits to the transmission / reception radio device 306 of the base station 121 in the B area using the communication channel of the radio carrier f2 (step 613). When receiving the emergency disaster prevention information (step 614), the base station 121 in the B area uses the communication channel designated by the wireless carrier F3 from the wireless device 125 to transmit each emergency communication system 124 in the disaster prevention radio system 102 in the B area. .., For example, emergency disaster prevention information is transmitted to the slave station 123-1 as described above (step 615). As a result, the slave station 122-1, 123-1,... In the communication area of the disaster prevention radio system 102 in the B area also receives a notification signal and an emergency disaster prevention from the general base station 104 in the A area. Information can be received.

  In the above description, the calling signal and the emergency disaster prevention information from the general base station 104 in the A area are transmitted to the slave stations 122-1, 123-1 in the communication area 124 of the disaster prevention radio system 102 in the B area. The operation of reporting to the above has been described, but the same applies when reporting to each of the slave stations 132-1, 133-1,... In the communication area of the disaster prevention radio system 103 in the C area. Description is omitted.

In addition, since confirmation of whether each slave station in the communication area of the disaster prevention radio system in each district has received emergency disaster prevention information has been performed conventionally, it will be briefly described here. For example, when receiving emergency disaster prevention information, each slave station registers and registers in the storage unit (not shown) of each slave station that the operator (owner of each slave station) has received emergency disaster prevention information. (Steps 616 and 617). Then, after transmitting the emergency disaster prevention information, the supervisory base station transmits an emergency registration information confirmation signal after 10 seconds, for example, after a predetermined period has elapsed (steps 618, 619, and 620). The confirmation method, for example, the polling method, i.e., whether the受令signals are受令registered in numerical order of the slave station is transmitted from the slave station (step 621, 622, 623 and 624), the overall of the A section Confirmation is performed using a confirmation table as shown in Table 2 provided in the storage unit of the base station 104.

表２において、地区名は、Ａ地区、Ｂ地区、Ｃ地区、・・のように統合された地区名を示している。子局番号は、各地区に登録されている子局の番号またはＩＤを表す。受令応答の有無は、例えば、ポーリングで応答のあった子局には、「有」、応答のない子局には、「無」を登録する。なお、本実施例では、統括基地局１０４で全て確認し、登録する場合について説明したが、各基地局１２１、１３１、・・・毎に子局からの受令登録を記憶部１２７、１３７、・・、に記憶し、一括して統括基地局１０４に送信することもできる。

In Table 2, the district names indicate integrated district names such as A district, B district, C district, and so on. The slave station number represents a slave station number or ID registered in each district. As for the presence / absence of an acceptance response, for example, “Yes” is registered in a slave station that has responded by polling, and “No” is registered in a slave station that does not respond. In the present embodiment, the case has been described in which the overall base station 104 confirms and registers, but the base station 121, 131,... .., And can be collectively transmitted to the base station 104.

  With the above configuration, in the disaster prevention center, for example, by displaying the response confirmation table of each district shown in Table 1 on the display unit 304 of the central base station 104, the simultaneous notification is transmitted to which district, and which district You can easily know if it was not transmitted to. Similarly, by displaying the table in Table 2, it is possible to easily know to which slave station emergency disaster information has not been transmitted. In addition, since the call information of the broadcast message from the central base station 104 is transmitted repeatedly at regular intervals rather than once, even if a slave station that has not received the broadcast message at a certain time is Of course, it will be possible to receive by notification.

In the above embodiment, the disaster prevention radio system in each district has been described. However, the present invention is not limited to this, and it is needless to say that the group communication and individual call that are normally performed can be similarly performed. That is, in the case of group communication, to perform communication with the corresponding group by that sends attach a group number of the group to be transmitted, also for the individual call, specifying the number of the slave station You can make a call. Needless to say, a base station is provided for each district and communication can be performed independently for each district. However, in the case of emergency disaster information such as a simultaneous command from the central base station 104, it is needless to say that the command from the central base station 104 has priority. Also, by configuring in this way, the base stations 121 and 131 in the B district, the C district,... Can be operated as unmanned base stations.

  Although the present invention has been described in detail above, the present invention is not limited to the embodiments of the wireless communication system and the wireless communication method described herein, and communication systems, disaster prevention wireless systems, and wireless communication other than those described above. Needless to say, it can be widely applied to methods and the like.

It is a block diagram which shows schematic structure of one Example of this invention. It is a block diagram which shows schematic structure of the relay radio equipment used by this invention. It is a block diagram which shows schematic structure of the base station used by this invention. It is a figure which shows the frame format of the control channel used by this invention. It is a figure which shows the frame format of the communication channel used by this invention. The flowchart for demonstrating operation | movement of this invention is shown. It is a block diagram which shows an example of the conventional communication system.

Explanation of symbols

  101: Disaster prevention radio system of A district, 102: Disaster prevention radio system of B district, 103: Disaster prevention radio system of B district, 104: General base station, 105, 122, 132: Outdoor slave station, 106, 123, 133: Individual Receiver, 107, 124, 134: Communication area, 108, 109: Relay radio equipment, 110, 125, 135: Radio, 111, 126, 156: Console, 112, 127, 137: Storage unit, 121, 131 : Base station, 201, 202, 301, 302: transceiver for transmission / reception, 303: processing device, 304: display unit, 305: operation unit, 701: character display sending device, 702: console, 703: wireless device, 704 : Receiver of outdoor loudspeaker, 705: character display, 706: door-to-door receiver, 707: character display, 708: information terminal device.

Claims (6)

A first disaster prevention radio system having a plurality of slave stations;
A second disaster prevention radio system having a communication area different from the first disaster prevention radio system and having a base station and a plurality of slave stations coupled by radio communication with the base station;
A wireless communication system having a transmission path that communicates with the base station of the second disaster prevention radio system and comprising a relay radio facility that relays the first disaster prevention radio system and the second disaster prevention radio system A base station for the first disaster prevention radio system,
The wireless communication system is coupled to the plurality of slave stations of the first disaster prevention radio system by radio communication, and transmits information to the base station of the second disaster prevention radio system via the relay radio equipment. , The controlling base station. In the integrated base station according to claim 1,
A reception confirmation table for recording presence / absence of reception confirmation of the information by the base station of the second disaster prevention radio system;
A processor that stores in the reception confirmation table that the reception confirmation has been received from the base station when a reception confirmation signal of the information is received from the base station of the second disaster prevention radio system via the relay radio equipment; An integrated base station characterized by comprising In the integrated base station according to claim 1 or 2,
An order registration table for registering orders from the plurality of slave stations of the second disaster prevention radio system;
The processing base station, when receiving the confirmation signal for the acceptance registration from the second disaster prevention radio system via the relay radio equipment, registers the order in the acceptance registration table. A first disaster prevention radio system having a central base station and a plurality of slave stations coupled to the central base station by radio communication;
Relay in a wireless communication system having a communication area different from that of the first disaster prevention radio system and comprising a base station and a second disaster prevention radio system having a plurality of slave stations coupled by radio communication with the base station Wireless equipment,
A relay radio equipment, wherein information transmitted from the overall base station is transmitted to the base station of the second radio communication system. In the relay radio equipment according to claim 4,
A relay using a radio carrier different from radio carriers used in the first and second radio communication systems when communicating with the base station of the second radio communication system by radio Wireless equipment. A first disaster prevention radio system having a central base station and a plurality of slave stations coupled to the central base station by radio communication;
A second disaster prevention radio system having a communication area different from the first disaster prevention radio system and having a base station and a plurality of slave stations coupled by radio communication with the base station;
The base station of the second disaster prevention radio system in a radio communication system comprising a relay radio facility for transmitting information transmitted from the general base station to the base station of the second disaster prevention radio system. ,
A base station, wherein information received from the relay radio equipment is transmitted to the plurality of slave stations of the second radio communication system.

Images