JP2006340129A - Mobile communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile communication system which is reliable and further speedily transmitting emergency disaster information to as many terminal stations as possible. <P>SOLUTION: A processing apparatus of a control station is configured to include a function for transmitting at least first and second simultaneous notification information items to the plurality of mobile stations at predetermined time intervals, and a function for causing mobile stations which have received the first simultaneous notification information among the plurality of mobile stations, to register the reception of the simultaneous notification information and to transmit reception response signals to said control station if the processing apparatus transmits the first simultaneous notification information iem to the plurality of mobile stations, and to cause mobile stations that have not receives the first simultaneous notification information item, among the plurality of mobile stations to receive the second simultaneous notification information item if the processing apparatus transmits the second simultaneous notification information item to the plurality of mobile stations. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mobile communication system, and more particularly to a simultaneous notification system in a digital mobile communication system.

  One of the digital radio systems currently in practical use is a mobile communication system defined by the standard ARIB STD-T79 (Association of Radio Industries and Businesses-T79) (for example, see Non-Patent Document 1). . FIG. 6 is a diagram showing a schematic configuration of a public municipal digital mobile communication system. This public municipal digital mobile communication system shows a minimum system configuration example. One base station covers a mobile station operation area with one base station. It adds a direct communication function. Therefore, a system composed of a plurality of base stations, relay stations, and a large number of mobile stations is generally used. However, for convenience of explanation, description will be made with reference to FIG. 6 having the simplest configuration.

  6, a plurality of mobile stations 603-1, 603-2, 603-3,... In a communication area 605 (also referred to as a communication zone) of a control station 601 and a base station 602 (also referred to as a control station). A communication connection service for direct communication between 603-N and a base station or between mobile stations via a base station or between mobile stations, or a mobile station 603-4 outside the communication area 605 and a mobile station 603 within the communication area 605 -N is a system configured to perform a communication connection service with N. Note that the control station 601 may be installed in the vicinity of the base station 602, or may be installed in a place far away. In this case, the control station 601 and the base station 602 are generally connected by a transmission line 604 such as a wired or micro line. In the following description, the mobile stations 603-1, 603-2, 603-3, 603-4,... 603-N are collectively referred to as the mobile station 603.

  The control station 601 maintains and manages a communication connection and a service area between the base station 602 and the plurality of mobile stations 603 in the digital wireless communication system. The control station 601 is provided with a line control device, and performs control such as call control from a mobile station or setting of a communication route.

  Thus, FIG. 7 shows radio carrier frequency allocation permitted for use in a public municipal digital mobile communication system using digital radio technology defined by the standard ARIB STD-T79. In FIG. 7, 112 waves (f1, f2,...) Having a width of 25 KHz and a radio carrier f of about 262 MHz to 265 MHz are recognized in the uplink direction, that is, in the direction from the mobile station to the base station. Further, in the downlink direction, that is, in the direction from the base station to the mobile station, a radio carrier F of about 271 MHz to 274 MHz, 9 MHz away from 262 MHz in the uplink direction, and 112 waves (F1, F2,. It recognized. Accordingly, in the communication of the digital wireless communication system, the frequencies in the upstream direction f1, f2,..., The downstream directions F1, F2,. Each system can use one or a plurality of radio carriers as control carriers and the rest as communication carriers according to the scale.

  Further, each radio carrier is divided into frames as shown in FIG. 8, and after the frame is further divided into four slots, a control channel C and a communication channel S are allocated to the slots. Here, one frame is 40 ms, for example. The control channel C is a channel for performing connection control of a wireless line, and the communication channel S is a channel for performing a telephone call and data communication. A carrier including one or more control channels is referred to as a control carrier, and a carrier constituted only by communication channels is referred to as a communication carrier.

  In the mobile communication system as described above, simultaneous notification is performed in the case of a disaster warning or other emergency, and the operation of simultaneous notification in that case will be described with reference to FIG. In FIG. 9, the control station 601 always transmits an empty line signal to each mobile station 603 at a predetermined cycle (step 901), whereby the control station 601 and each mobile station 603 are synchronized. Yes. In this description, the control station 601 is described, but the base station 602 may have this function.

  Next, when the control station 601 makes a simultaneous notification, a “broadcast” button is pressed on the display screen of a command console (not shown) of the control station 601. When this “simultaneous notification” button is pressed, the control station 601 uses the general call channel PCH (this will be described later) of the control channel C shown in FIG. A simultaneous report is sent to the mobile station (step 902). It should be noted that in the simultaneous notification, there are a case where all mobile stations of the mobile communication system are notified collectively and a case where a specific group is notified. When broadcasting to a specific group, it is sent with an identification signal of a group number, for example, an identification signal of an appropriately defined group of 00 to 99, so that only a specific group receives the broadcast message 902. It has become. In addition, a switching signal to a designated call channel, for example, F1 is attached to this simultaneous notification.

  The mobile station 603 that has received the broadcast report switches to the communication channel S, for example, the communication channel S3 (shown in FIG. 8) based on the switching signal F1 to the designated call channel (step 903). Then, the mobile station 603 receives the contents of simultaneous notification transmitted by the control station 601 through the communication channel S3, for example, emergency disaster information such as tsunami information and evacuation information (step 904). Accordingly, the mobile station 603 that has received the contents of the simultaneous notification can hear emergency disaster information from the speaker. In the case of text information, the mobile station 603 visually confirms the emergency disaster information displayed on the display device of the mobile station 603. Is possible.

  The mobile station 603 that received the broadcast content 904 receives and registers that it has received the broadcast content in its own storage unit (step 905). In FIG. 9, the mobile station 603-1 has received emergency disaster information from the control station 601, but the mobile station 603-N has not received emergency disaster information from the control station 601 for some reason. Shows the case. Accordingly, the mobile station 603-1 has received and registered the simultaneous notification content 904 in its own storage unit, but the mobile station 603-N has registered and registered the simultaneous notification content in its own storage unit. Indicates no state. The order registration method is, for example, by pressing a handset or a press talk switch of the mobile station 603-1 to the storage unit of the mobile station 603-1 “signal F2 with order (indicating that emergency disaster information has been heard”. Flag) ”. Since the mobile station 603-N has not heard the emergency disaster information, the mobile station 603-N indicates that the order registration has not been performed.

  Next, after a predetermined time has elapsed, the control station 601 performs an acceptance response confirmation for confirming whether or not the contents of the simultaneous notification have been received by all the mobile stations 603 using the communication channel S, for example, the communication channel S2. (Step 906). Note that the “after a predetermined time has elapsed” is a time sufficient for the operator of the mobile station 603 to register an order, for example, after a few seconds.

  Confirmation of an acceptance response from the control station 601 is performed by a well-known polling method, for example. That is, for example, the control station 601 inquires by polling whether or not the contents of the simultaneous notification have been received and registered in the storage unit of the mobile station 603-1 using the communication channel S3 (step 906). For a plurality of mobile stations 603, for example, the presence / absence registration of the mobile stations 603-1, 603-2,.

  The mobile station 603-1 that has received the polling signal for the presence / absence of acceptance registration transmits a flag F3 of the confirmation signal for acceptance registration to the control station 601 (step 907).

  On the other hand, when the mobile station 603-1 transmits the flag F3 of the confirmation signal for acceptance / registration to the control station 601, it resets the acceptance / registration of its own station (step 908). In other words, the mobile station 603-1 erases the contents of the acceptance registration from the storage unit of its own station, sets the call to the end state, and returns to the standby state for the next call (step 909). As a result, the mobile station 603-1 can perform the next reception.

  Upon receiving the command registration confirmation signal flag F3 from the mobile station 603-1, the control station 601 registers the command confirmation result in the command response confirmation result list provided in the storage unit of the control station 601. (Step 910).

  For the mobile stations 603-2, 603-3,... The command registration confirmation signal flag F3 is transmitted.

  Step 911 shows a state in which the control station 601 makes an inquiry to the mobile station 603-N about the presence / absence registration of the contents of simultaneous notification by polling. Here, when the mobile station 603-N has not received and registered the contents of the simultaneous notification, a flag F4 of “No order registration” is transmitted to the control station 601 (step 912). Then, the mobile station 603-N sets the talking end state and returns to the standby state (step 913). As a result, the mobile station 603-N can perform the next reception.

  When the control station 601 receives the “no order registration” flag F4 from the mobile station 603-N, it registers the order confirmation result in the order response confirmation result list provided in the storage unit of the control station 601. (Step 914). Then, the control station 601 ends the talk and returns to the standby state (step 915).

  As described above, in the storage unit of the control station 601, the confirmation result list of the reception response from each mobile station 603 is created as shown in Table 1 based on the polling result.

表１は、各移動局６０３から送られてくる受令確認結果を表示したものである。表１において、所有者Ａの移動局６０３−１、所有者Ｃの移動局６０３−２は、「受令確認済」を示し、所有者Ｌの移動局６０３−Ｎは、「受令登録なし」を示している。また、移動局６０３−３は、「通信不明」であり、例えば、移動局６０３−３は、基地局６０２の通信エリア６０５の外にいる場合あるいは電源がＯＦＦの場合が考えられる。以上のように構成されているので、この受令応答の確認結果一覧表から一斉通報内容がどの移動局で受信され、どの移動局では受信されていないかを知ることができる。

Table 1 displays the reception confirmation result sent from each mobile station 603. In Table 1, the mobile station 603-1 of the owner A and the mobile station 603-2 of the owner C indicate “acknowledgement of acceptance”, and the mobile station 603-N of the owner L indicates “no registration of acceptance” Is shown. Further, the mobile station 603-3 is “communication unknown”. For example, the mobile station 603-3 may be out of the communication area 605 of the base station 602 or may be off. Since it is configured as described above, it is possible to know from which mobile station the content of the simultaneous notification is received and which mobile station is not receiving the content of the simultaneous notification from the confirmation result list of the acceptance response.

  Thus, in the mobile communication system described above, emergency disaster information such as tsunami information and evacuation information is transmitted to the mobile station that has received the simultaneous notification. It is possible to respond to evacuation guidance, recovery activities, etc. based on the above, but local government officials who have not received simultaneous reports, disaster prevention agency staff, etc. cannot know emergency disaster information. Therefore, the disaster prevention center confirms the confirmation result list of the order response shown in Table 1, for example, and the mobile station that is not confirmed for order, for example, the mobile station 603-3 of the owner D,. Currently, emergency disaster information is communicated individually to mobile stations 603-N using telephone lines and communication lines. However, this method is inadequate as a mobile communication system that enables emergency disaster information because it takes too much time for individual communication when there are a large number of mobile stations that have not received confirmation of orders. Moreover, it is desired to realize a mobile communication system that can quickly transmit emergency disaster information to as many mobile stations as possible.

  Further, in a simultaneous command acceptance confirmation method (for example, see Patent Document 1) of a communication system, a technique for shortening the supplementary time of a terminal station by a simultaneous command is disclosed.

JP 2003-110704 A Standard ARIB STD-T79: Municipal digital mobile communication system TYPE1, Radio Industry

  In a conventional mobile communication system, emergency disaster information is transmitted to a mobile station that has received a broadcast message, and residents can respond appropriately. The current situation is that emergency disaster information is communicated individually to a mobile station that has not been able to know, and has not received a simultaneous report, using a telephone line or a communication line. However, this method is not sufficient as a mobile communication system that enables emergency disaster information because it takes too much time for individual communication if there are many mobile stations that have not been confirmed to be accepted.

  An object of the present invention is to provide a mobile communication system that is reliable and can quickly transmit emergency disaster information to as many terminal stations as possible.

  Another object of the present invention is to provide a mobile communication system capable of transmitting emergency disaster information to as many terminal stations as possible in a short time.

  Still another object of the present invention is to provide a mobile communication system capable of repeatedly transmitting a broadcast message.

  The present invention provides a mobile communication system comprising a control station having a processing device and a plurality of mobile stations, wherein the processing device transmits at least first and second broadcast information to the plurality of mobile stations at predetermined time intervals. And when the processing device transmits the first broadcast information to the plurality of mobile stations, the mobile station that has received the first broadcast information among the plurality of mobile stations, When receiving and registering the broadcast information, sending an order response signal to the control station, and when the processing device sends the second broadcast information to the plurality of mobile stations, the plurality of mobile stations The mobile station that has not received the first broadcast information has a function of receiving the second broadcast information.

  Also, in the mobile communication system of the present invention, when the processing device transmits the second broadcast information to the plurality of mobile stations, a recall code is added to the second broadcast information and transmitted. Configured.

  In the mobile communication system of the present invention, the control station further includes a storage unit and a display unit, stores the reception response signal from the mobile station in the storage unit, and moves the mobile station to the display unit. It is configured to display the reception response confirmation result of the station.

  In the mobile communication system of the present invention, the display unit displays an acknowledgment response confirmation result from the mobile station that has received the first broadcast information and the mobile that has received the second broadcast information. The reception response confirmation result from the station is additionally displayed on the display unit.

  Furthermore, the present invention provides a mobile communication system comprising a control station and a plurality of mobile stations, wherein the control station has a processing device and a first storage unit, and the processing device includes at least first and second processing devices. The mobile station has a function of transmitting broadcast information to the plurality of mobile stations at a predetermined time interval, and the mobile station receives a reception signal processing unit for processing the broadcast information from the control station and a confirmation signal for the broadcast information. A control unit having a second storage unit for controlling the reception signal processing unit and the transmission signal processing unit, and an operation unit for operating the control unit. When one broadcast information is transmitted to the plurality of mobile stations, an operator of the mobile station that has received the first broadcast information among the plurality of mobile stations operates the operation unit to Register the order of the above-mentioned simultaneous notification information in the memory part 2 And when the processing device transmits the second broadcast information to the plurality of mobile stations, the first broadcast notification of the plurality of mobile stations is transmitted. The operator of the mobile station that did not receive the information operates the operation unit to register the second broadcast information in the second storage unit, and sends an instruction response signal to the control station. Configured to transmit.

  Also, in the mobile communication system of the present invention, when the processing device transmits the second broadcast information to the plurality of mobile stations, a recall code is added to the second broadcast information and transmitted. Configured.

  In the mobile communication system of the present invention, the control station further includes a display unit, stores the reception response signal from the mobile station in the first storage unit, and stores the reception response signal in the display unit. The mobile station is configured to display an acknowledgment response confirmation result.

  In the mobile communication system of the present invention, the display unit displays an acknowledgment response confirmation result from the mobile station that has received the first broadcast information and the mobile that has received the second broadcast information. The reception response confirmation result from the station is additionally displayed on the display unit.

  As described above, since the mobile communication system of the present invention can retransmit a broadcast message, it is possible to recall a broadcast message to a mobile station that has not received the initial broadcast message. is there. Therefore, even if there are many mobile stations that cannot confirm the reception of the first simultaneous notification, it does not take too long, and a mobile communication system that can transmit emergency disaster information with high reliability can be realized. There is a feature called. In addition, since the simultaneous notification can be repeatedly transmitted, a mobile communication system capable of transmitting emergency disaster information to as many mobile stations as possible in a short time can be realized.

  FIG. 1 is a diagram showing a schematic configuration of a mobile communication system according to an embodiment of the present invention. In FIG. 1, a plurality of mobile stations 103-1, 103-2, 103-3,... In a communication area 105 (also referred to as a communication zone) between a control station 101 and a base station 102 (also referred to as a control station). A communication connection service such as a direct communication between 103-N and a base station or between mobile stations via a base station or between mobile stations, or a mobile station 103-4 outside the communication area 105 and a mobile station in the communication area 105 103 is a system configured to perform a communication connection service with 103-N. Note that the control station 101 may be installed in the vicinity of the base station 102, or may be installed in a place far away. In this case, the control station 101 and the base station 102 are generally connected by a transmission line 104 such as a wired or micro line. In the following description, the mobile stations 103-1, 103-2, 103-3, 103-4,... 103-N are collectively referred to as the mobile station 103. In FIG. 1, mobile stations 103-1 and 103-3 are portable mobile stations, and mobile stations 103-2, 103-4 and 103-N are in-vehicle mobile stations. It is not limited to a portable mobile station or an in-vehicle mobile station.

  The control station 101 maintains and manages a communication connection and a service area between the base station 102 and a plurality of mobile stations in the digital wireless communication system. The control station 101 is provided with a line control device, and performs control such as call control from a mobile station or setting of a communication route. The mobile communication system shown in FIG. 1 uses the digital radio technology defined in the standard ARIB STD-T79 (for example, refer to Non-Patent Document 1) as in the conventional mobile communication system shown in FIG. The radio carrier frequency allocation (shown in FIG. 7) and the frame configuration (shown in FIG. 8) permitted to be used in the regional disaster prevention system are used, and detailed description thereof is omitted here.

  Next, in the embodiment of the present invention shown in FIG. 1, the simultaneous notification performed by the control station to the mobile station will be described with reference to FIGS. FIG. 2 is a block diagram illustrating a schematic configuration of the control station 101 and the base station 102, and the control station 101 includes a processing device 201, a storage unit 202, a display unit 203, and an operation unit 204. The base station 102 includes a transmission radio 205 and a reception radio 206. In FIG. 2, the control station 101 and the base station 102 are illustrated as being coupled by the transmission path 104, but the control station 101 and the base station 102 may be configured integrally.

  FIG. 3 is a block diagram illustrating a schematic configuration of the mobile station 103. Note that the mobile station shown in FIG. 3 is a radio communication apparatus that can perform simultaneous transmission and reception using, for example, a pair wave of an uplink radio carrier f1 and a downlink radio carrier F1. In FIG. 3, 301 is an antenna for performing transmission and reception with the base station 102, 302 is a high-speed switch for simultaneous transmission and reception, 303 is a receiving unit, 304 is a received signal processing unit, 305 is A speaker, 306 is a control unit, 307 is a storage unit, 308 is a display unit, 309 is an operation unit, 310 is a microphone, 311 is a transmission signal processing unit, and 312 is a transmission unit.

  In the operation of the wireless communication apparatus, first, the operation unit 309 is operated, for example, the other party's mobile station number is input using a numeric keypad, and a call button is pressed. Since the transmission state is entered when the other party leaves, the audio signal input from the microphone 310 is input to the transmission unit 312 after being subjected to predetermined signal processing for transmission by the transmission signal processing unit 311. The signal input to the transmission unit 312 is subjected to predetermined modulation for transmission, converted to a predetermined transmission frequency f1, output from the antenna 301 via the changeover switch 302, and received by the receiving radio 206 of the base station 102. Sent to.

  On the other hand, a signal from the partner mobile station is received by the antenna 301 and input to the receiving unit 303 via the changeover switch 302. The signal input to the reception unit 303 is amplified at a high frequency, converted into a predetermined intermediate frequency, further demodulated, and supplied to the reception signal processing unit 304. The reception signal processing unit 304 outputs an audio signal from the speaker 305 after performing predetermined signal processing. In the case of data, the data is displayed on the display unit 308.

  Thus, the simultaneous notification of the mobile communication system of the present invention will be described with reference to FIG. First, the control station 101 always transmits a blank signal (step 501) from the processing device 201 to each mobile station 103 via the transmission radio 205 at a predetermined cycle, whereby the control station 101 and each mobile station 103 are transmitted. And is synchronized.

  Next, when the control station 101 makes a simultaneous report, a “broadcast” button is pressed on the display screen of the display unit 203 of the command console of the control station 101. When this “broadcast” button is pressed, the processing unit 201 of the control station 101 uses the control channel C (shown in FIG. 8) to send a “broadcast” signal BI to each mobile station 103 (step 502). Send. The format of the downlink control channel at this time is shown in FIG. In FIG. 4A, R is a burst transient response guard time, P is a preamble, CAC is a control signal (including a general call channel PCH), E is a collision control bit, SW is a synchronization word, CI Indicates carrier information, CC indicates a color code (interference countermeasure code), and I indicates an idle bit. Each numerical value represents the number of bits. The broadcast notification signal BI and the switching signal F1 to the designated communication channel (collectively referred to as broadcast notification information) are transmitted from the control station 101 to each mobile station 103 through the general call channel PCH of the control signal CAC. Is done.

  In the mobile station 103 that has received the broadcast information, the control unit 306 detects a switching signal F1 to the designated call channel from the broadcast information, and based on this detection signal, the communication channel S, for example, the communication channel S3 (FIG. 8). The reception channel timing of the wireless communication apparatus is switched so that it can be received (step 503).

  Thereafter, the control station 101 transmits broadcast information, for example, emergency disaster information such as tsunami information and evacuation information, using the downlink communication channel S3 (step 504). The format of the downlink communication channel in this case is shown in FIG. In FIG. 4B, R is a burst transient response guard time, P is a preamble, TCH is a traffic channel, SW is a synchronization word, CI is carrier information, and CC is a color code (interference countermeasure code). , SACCH indicates a low-speed associated control channel, and B / I indicates a busy / idle bit. Each numerical value represents the number of bits. Then, emergency disaster information such as tsunami information and evacuation information is transmitted from the control station 101 to each mobile station 103 using the traffic channel TCH. The traffic channel TCH has a licensee specific user area defined in the standard ARIB STD-T79, and emergency disaster information is inserted into this area and sent, for example.

  In each mobile station 103, when this emergency disaster information is received, the received signal processing unit 304 can decode this into voice and listen to the emergency disaster information from the speaker 305. If the emergency disaster information from the control station 101 includes text information, the text information can be decoded and the emergency disaster information can be displayed on the display device 308.

  Here, the mobile station 103 that has received the broadcast notification information registers that it has received the broadcast notification information in its own storage unit 307 (step 505). In FIG. 5, the mobile station 103-1 has received emergency disaster information from the control station 101, but the mobile station 103-N has not received emergency disaster information from the control station 101 for some reason. Shows the case. Accordingly, the mobile station 103-1 has received and registered the broadcast information in the storage unit 307 of its own station, but the mobile station 103 -N has received and registered the broadcast information in the storage unit 307 of its own station. Indicates a state that is not.

  For example, the operator who has confirmed the emergency disaster information operates the operation unit 309 of the mobile station 103-1 in the storage unit 307 of the mobile station 103-1 to receive the “Signal F2 with command” ( For example, “11” is registered. Since the mobile station 103-N has not heard the emergency disaster information, it is not registered for acceptance. Therefore, the received signal F2 is not registered in the storage unit 307 of the mobile station 103-N.

  Next, the control station 101 uses the communication channel S, for example, the communication channel S2, to confirm whether or not the broadcast information has been received by all the mobile stations 103 after a predetermined time has elapsed. (Step 506). Note that the “after a predetermined time has elapsed” is a time sufficient for the operator of the mobile station 603 to register an order, for example, after a few seconds.

  Confirmation of an acceptance response from the control station 101 is performed by a well-known polling method, for example. That is, the control station 101 inquires by polling whether or not the broadcast information has been received and registered in the storage unit 307 of the mobile station 103-1, for example, using the communication channel S3 (step 506). For a plurality of mobile stations 103, for example, the presence / absence of registration of orders is confirmed like mobile stations 103-1, 103-2,.

  The mobile station 103-1 that has received the polling signal for the inquiry about the presence / absence of registration / registration transmits the flag F3 of the confirmation signal for the registration / registration to the control station 101 (step 507).

  On the other hand, the mobile station 103-1 transmits a flag F <b> 3 of an acceptance registration confirmation signal to the control station 101. Then, the mobile station 103-1 puts the received signal F2 in the storage unit 307 of its own station, puts it in a call-ending state, and returns to the standby state for the next call (step 508). As a result, the mobile station 103-1 can perform the next reception.

  Upon receiving the command registration confirmation signal flag F3 from the mobile station 103-1, the control station 101 displays the command confirmation result in the command response confirmation result list provided in the storage unit 202 of the control station 101. Registration is performed (step 509).

  Step 510 shows a state in which the control station 101 inquires the mobile station 103-N about the presence / absence of registration of broadcast information by polling. Here, if the mobile station 103-N has not received and registered the simultaneous notification information in the storage unit 307 of its own station, it transmits a flag F4 of “no order registration” to the control station 101 (step 511). Then, the mobile station 103-N returns to the standby state (step 512). As a result, the mobile station 103-N can perform the next reception.

  When the control station 101 receives the flag F4 “no order registration” from the mobile station 103-N, the order confirmation result is displayed in the confirmation result list of the order response provided in the storage unit 202 of the control station 101. Register (step 513). Then, the control station 101 ends the talk and returns to the standby state (step 514).

  For all the mobile stations 103, the above operation is sequentially inquired of the storage unit 307 of the mobile station 103 for the presence / absence of registration of broadcast notification information, and flags F3 and F4 of the confirmation registration confirmation signals from each mobile station 103. And the command confirmation result of each mobile station 103 is registered in the command response confirmation result list provided in the storage unit 202 of the control station 101. This registration status is as shown in Table 2.

次に、統制局１０１の、例えば、防災管理者が表２に示す受令応答の確認結果一覧表を調査し、受令確認済の結果表示がなされていない移動局が存在すると、一斉通報情報の再呼び出しを実行する。以下、この一斉通報情報の再呼び出しについて説明する。図５において、統制局１０１がポーリング方式により全移動局１０３からの受令応答の確認を行った後、適当な時間後、例えば、数分後、再度全移動局１０３に対して一斉通報情報の再呼び出しを行う。なお、適当な時間とは、適宜、防災管理者が統制局１０１側で設定すれば良い。

Next, for example, the disaster prevention manager of the control station 101 investigates the confirmation result list of the acceptance response shown in Table 2, and if there is a mobile station for which the confirmation confirmation result display is not present, Perform a recall of Hereinafter, the recall of the broadcast information will be described. In FIG. 5, after the control station 101 confirms the acceptance response from all the mobile stations 103 by the polling method, after a suitable time, for example, several minutes later, the broadcast information is again transmitted to all the mobile stations 103. Recall. The appropriate time may be appropriately set by the disaster prevention manager on the control station 101 side.

  Recalling the broadcast information adds the recall code to the previously described broadcast information (the first broadcast information, which is referred to as the first broadcast information) (step 515), and all movements Transmit to the station 103 (step 516). That is, the “recall” button is pressed on the display screen of the display unit 203 of the command console of the control station 101. When this “recall” button is pressed, the processing device 201 of the control station 101 uses the control channel C (shown in FIG. 8) to send each mobile station 103 the “broadcast information signal BI and designation”. A "recall code (RC)" is added to the communication channel switching signal F1 "and transmitted. Therefore, the signal BI of the first broadcast information transmitted for the first time and the switching signal F1 to the designated communication channel are the same signal, but a recall code (RC) is added. The broadcast information to which the recall code (RC) is added is the second broadcast information, and is referred to as second broadcast information.

  The second broadcast information transmitted from the control station 101 is received by all the mobile stations 103 at the same time. The control unit 306 of the mobile station 103 that has received the second broadcast information extracts the “recall code (RC)” from the second broadcast information. Then, based on the detection of the recall code (RC), the presence or absence of a signal F2 (flag indicating that emergency disaster information has been heard) stored in the storage unit 307, for example, 11 is checked. .

  As a result of the check, when the signal F2 with an instruction is registered in the storage unit 307, the control unit 306 returns to the standby state (step 517). In this case, the commanded signal F2 in the storage unit 307 is reset. However, if the signal F2 with the command is not registered in the storage unit 307, the control unit 306 extracts the switching signal F1 to the designated communication channel from the second broadcast information, and based on this detection signal Then, the control unit 306 switches the reception channel timing of the mobile station 103 so that the communication channel S, for example, the communication channel S3 (shown in FIG. 8) can be received (step 518). That is, the mobile station 103 that has not received the first broadcast information, for example, the mobile station 103-N, can receive the second broadcast information and receive the communication channel S3 (shown in FIG. 8). To switch the reception channel timing of the mobile station 103-N.

  Thereafter, the control station 101 transmits broadcast information, for example, emergency disaster information such as tsunami information and evacuation information, using the downlink communication channel S3 (step 519). This second broadcast information is also transmitted from the control station 101 to each mobile station 103 using the traffic channel TCH shown in FIG. Accordingly, when the mobile station 103-N receives the emergency disaster information, the reception signal processing unit 304 decodes the emergency disaster information into voice and can hear the emergency disaster information from the speaker 305. If the emergency disaster information from the control station 101 includes text information, the text information can be decoded and the emergency disaster information can be displayed on the display device 308.

  The mobile station 103-N that has received the second broadcast information receives and registers that it has received the broadcast information in its own storage unit 307 (step 520). In the same way as described above, the operator who has confirmed the emergency disaster information operates, for example, the operation unit 309 of the mobile station 103-N in the storage unit 307 of the mobile station 103-N. A certain signal F2 (a flag indicating that emergency disaster information has been heard), for example, 11 ”is registered.

  Next, the control station 101 uses the communication channel S, for example, the communication channel S2, to confirm whether or not the broadcast information has been received by all the mobile stations 103 after a predetermined time has elapsed. (Step 521). Note that the “after a predetermined time has elapsed” is a time sufficient for the operator of the mobile station 603 to register an order, for example, after a few seconds.

  The acknowledgment response confirmation from the control station 101 can be performed for all the mobile stations 103 by the polling method in the same manner as described above, but the number of mobile stations to receive the second broadcast information is limited. Therefore, it is possible to transmit a polling signal for confirming an acceptance response only to the target mobile station. In addition, this has the advantage that the time for confirming the acceptance response can be shortened. The mobile station 103-N that has received the polling signal for confirming the acceptance response transmits a flag F3 of the confirmation signal for acceptance registration to the control station 101 (step 522). Then, the mobile station 103-N puts the received signal F2 in the storage unit 307 of the own station and puts it into a call waiting state, and returns to the standby state for the next call (step 523). As a result, the mobile station 103-N can perform the next reception.

  Upon receiving the command registration confirmation signal flag F3 from the mobile station 103-N, the control station 101 displays the command confirmation result in the command response confirmation result list provided in the storage unit 202 of the control station 101. Additional registration is performed (step 524). Table 3 shows a list of confirmation results of additionally registered acceptance responses.

表３において、移動局番号１０３−Ｎの受令確認結果欄に受令確認済が追加登録されている。従って、表３を見ると第１の一斉通報情報を受令確認した移動局と第１の一斉通報情報を受令確認した移動局のリストが表示され、また、第１および第２の一斉通報情報を受令確認できない移動局１０３−３が表示される。従って、表３を見れば、まだ、一斉通報情報を受令確認できない移動局がどの移動局かを知ることができる。なお、本実施例では、第１および第２の一斉通報情報を受令確認するシステムについて説明したが、第２の一斉通報情報を送信し、受令確認を行っても、なお、多数の受令確認の取れない移動局が存在する場合には、更に、再再呼び出しコード（ＲＲＣ）を付加し、第３の一斉通報情報を送信して、上述と同様に受令確認を行うこともできる。以降も同様である。この場合には、先の実施例で説明した記憶部３０７の受令ありの信号Ｆ２をリセットせず、何回目かの呼出しコードを受信した時にリセットするように構成する。これはシステム設計の時に設定できるので、実施は容易である。

In Table 3, “receipt confirmation completed” is additionally registered in the acceptance confirmation result column of mobile station number 103-N. Therefore, looking at Table 3, a list of mobile stations that have received and confirmed the first broadcast information and a list of mobile stations that have received and confirmed the first broadcast information is displayed, and the first and second broadcast messages are displayed. The mobile station 103-3 whose information cannot be confirmed is displayed. Accordingly, by looking at Table 3, it is possible to know which mobile station is a mobile station that cannot yet receive and confirm broadcast information. In this embodiment, the system for confirming the reception of the first and second broadcast information has been described. However, even if the second broadcast information is transmitted and the confirmation of the reception is performed, a large number of receipts are still received. If there is a mobile station that cannot receive the command confirmation, a recall code (RRC) can be added, and the third broadcast information can be transmitted to confirm the reception as described above. . The same applies thereafter. In this case, the received signal F2 in the storage unit 307 described in the previous embodiment is not reset, but is reset when a number of call codes are received. Since this can be set at the time of system design, implementation is easy.

  Furthermore, the confirmation result list of the order response stored in the storage unit 202 of the control station 101 is listed for all the mobile stations 103 in Table 3, and the order confirmation of the second broadcast information is confirmed. However, emergency disaster information is extremely important for disaster prevention systems, and since reliability is required, which residents have not received the first broadcast information. It is also important to know. Therefore, a mobile station that could not be accepted with the first broadcast information was selected from the confirmation response list shown in FIG. 3 and could not be accepted with the first broadcast information as shown in Table 4. Create a list of mobile stations and confirm that the mobile station that has been ordered in the second broadcast information has been confirmed. For example, if the mobile station 103-N is displayed, the mobile station that could not be accepted in a short time will be displayed. I can grasp it.

更に、上記実施例では、統制局１０１から移動局への一斉通報の受令確認にポーリング方式を用いているが、各移動局１０３で自局の受令確認の送信タイミングをそれぞれ異なる所定のタイミング、例えば、電波時計等に同期を取り、各移動局に送信タイミングを割当て、そのタイミングで統制局１０１に送信する等の方法を用いることもできる。また、上記実施例では、移動通信システムの全ての移動局１０３についての一斉通報の受令確認について説明したが、これに限られるものではなく、移動局を地区毎にグループ分けし、グループ毎に本発明のような一斉通報の受令確認を行うこともできる。

Further, in the above embodiment, the polling method is used for confirming the simultaneous notification from the control station 101 to the mobile station. However, each mobile station 103 has its own reception confirmation confirmation transmission timing different from each other. For example, a method of synchronizing with a radio clock, etc., assigning a transmission timing to each mobile station, and transmitting to the control station 101 at that timing can be used. Further, in the above embodiment, the confirmation confirmation of simultaneous notification for all the mobile stations 103 of the mobile communication system has been described. However, the present invention is not limited to this, and the mobile stations are grouped for each district. It is also possible to confirm acceptance of simultaneous notification as in the present invention.

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

It is a figure which shows schematic structure of one Example of this invention. It is a block diagram which shows schematic structure of the control station used by this invention, and a base station. It is a block diagram which shows schematic structure of the mobile station used by this invention. It is a figure which shows the format of the channel for control used by this invention, and the channel for communication. The flowchart for demonstrating operation | movement of this invention is shown. It is a figure which shows schematic structure of the conventional mobile communication system. It is a figure which shows the frequency allocation of the radio carrier defined by standard ARIB STD-T79. It is a figure which shows the frame structure defined by standard ARIB STD-T79. The flowchart for demonstrating operation | movement of the conventional mobile communication system is shown.

Explanation of symbols

  101, 601: Control station, 102, 602: Base station, 103, 603: Mobile station, 104, 604: Transmission path, 105, 605: Communication area, 201: Processing device, 202: Storage unit, 203: Radio for transmission 204: reception wireless device 301: antenna 302: changeover switch 303: reception unit 304: reception signal processing unit 305: speaker 306: control unit 307: storage unit 308: display unit 309 : Operation unit, 310: microphone, 311: transmission signal processing unit, 312: transmission unit.

Claims (3)

  In a mobile communication system comprising a control station having a processing device and a plurality of mobile stations, the processing device has a function of transmitting at least first and second broadcast information to the plurality of mobile stations at predetermined time intervals. When the processing device transmits the first broadcast information to the plurality of mobile stations, the mobile station that has received the first broadcast information among the plurality of mobile stations receives the broadcast information. When receiving and receiving an order response signal to the control station, and when the processing device transmits the second broadcast information to the plurality of mobile stations, among the plurality of mobile stations, A mobile communication system, wherein a mobile station that has not received the first broadcast information has a function of receiving the second broadcast information.   2. The mobile communication system according to claim 1, wherein when the processing device transmits the second broadcast information to the plurality of mobile stations, a recall code is added to the second broadcast information and transmitted. A mobile communication system.   In a mobile communication system including a control station and a plurality of mobile stations, the control station includes a processing device and a first storage unit, and the processing device transmits at least first and second broadcast information to the plurality The mobile station has a function of transmitting to the mobile station at a predetermined time interval, and the mobile station transmits a reception signal processing unit that processes the broadcast information from the control station and a confirmation signal of the broadcast information. A signal processing unit, a control unit having a second storage unit for controlling the reception signal processing unit and the transmission signal processing unit, and an operation unit for operating the control unit, wherein the processing device transmits the first broadcast information. When transmitting to the plurality of mobile stations, the operator of the mobile station that has received the first broadcast information among the plurality of mobile stations operates the operation unit to store the above in the second storage unit. Registers orders for broadcast information and responds to orders Is transmitted to the control station, and the processing apparatus does not receive the first broadcast information among the plurality of mobile stations when the processing device transmits the second broadcast information to the plurality of mobile stations. The operator of the mobile station operates the operation unit to register the second broadcast information in the second storage unit, and transmits an instruction response signal to the control station. A mobile communication system.

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