JPH02131632A - Broad band radio call system - Google Patents

Abstract

PURPOSE:To easily attain the broad band of radio callout by allowing a mobile station of a subscriber moving in a wide band to inform it to a subscriber when the subscriber is at the outside of an effective area of the call service and revising the content of a subscriber identification device of the subscriber by a nearby location registration device. CONSTITUTION:When a subscriber A goes outside of a radio zone 4 and the reception from a base station 2 is disabled, a mobile station 9 sounds a speaker 29 in a tone color different from a call tone and lights an LED display lamp 30. When the subscriber A desires the radio call service, the subscriber ID card 25 is ejected from a radio equipment 9 to load the card 25 to a position registration device 10 in a nearby radio zone 3. Thus, the present location code of the fluctuation code column of the card 25 is revised depending on the content of the ROM 24. When the ID card 25 whose present location code of the fluctuation code column is revised is loaded to a portable radio equipment 9, the mobile station 9 can receive a radio call service from a base station 1 connecting to the location registration equipment 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to mobile communications, and particularly to a wide area radio paging system for radio calling subscribers who move throughout the country. (Prior Art) Conventionally, a so-called pager system has been put into practical use as a means of communicating with mobile bodies, in which subscribers who are mobile bodies within a specific area are called by radio from a base station. In such portable mobile radio systems, in order to reduce the size and weight of portable devices, batteries with as small a capacity as possible are used, and the transmitter, which consumes a lot of power, is excluded and only the receiver is used as a radio device. , it is a one-way communication form from the base station to the mobile unit. That is,
Subscribers whose subscriber registration stations are within a specific area are divided into several groups, and paging signals are sent sequentially from the base station, and each subscriber's radio is used only during the communication time slot assigned to the group to which it belongs. A so-called intermittent reception method is applied in which the receiving state is . Recently, systems that can send simple messages in addition to calling signals are also being put into practical use. (Problems to be Solved by the Invention) Communication between a base station and a mobile unit in such conventional technology is basically a call only within the area where the subscriber is registered, and calls within this area are The wireless calling function does not work for subscribers who have left the service. Furthermore, if there are many subscribers who have moved out of the area of the registered station, calls made to these subscribers from the base station will be invalid calls, resulting in a large loss in terms of effective use of wireless channels. On the other hand, in recent years, due to the development of transportation facilities, the social life of individuals has been expanded across the country, making it extremely inconvenient to use conventional technology. The present invention aims to eliminate the drawbacks of the prior art and provide a wide area radio paging system that can cover the entire country. (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a wide-area radio system in which a plurality of base stations are installed that communicate with mobile stations registered in a subscription registration station via predetermined radio channels. The calling system is removably attached to a portable radio that functions as a mobile station, and includes codes including a subscriber registration number code, a subscription registration area code, a channel number code, and a group number code, which are a group of codes unique to the registered subscriber. a subscriber identification device having a fixed code field in which is stored, and a variable code field in which a code including a channel number code and an area code to which the current location belongs representing the dynamic state of the subscriber is stored; and a base station. A location under the jurisdiction of which updates the variable code field of the area code and channel number code of the subscriber identification device and reports the current location area code of the subscriber who has made the update to the subscriber's registration station. The portable radio functions as a mobile station by being equipped with a subscriber identification device, and when the subscriber identification device is inserted into the location registration device, the location registration device Transfer the area code and channel number code of the base station to which the registration device belongs to the variable code field of the subscriber identification device, and transfer the subscriber registration number code and current location area code of the fixed code field of the subscriber identification device to the mobile station. By notifying the subscribing registration station, it is possible to make a radio call to a mobile station that is moving outside the area of its own registration station. Further, the portable radio device according to the present invention has a power switch and a reset button for resetting a variable code field of the subscriber identification device, and when the subscriber identification device is attached to the portable radio device, the power switch And when you operate either of the reset buttons, the subscriber registration code in the fixed code field of the subscriber identification device changes to subscriber identification? It is posted to the variation code column at position t. (Function) According to the present invention, the subscriber identification device includes a unique code field for storing the subscriber's number code, subscription registration area code, etc.;
A variable code column is provided to store information related to the current location while moving. As a result, if a subscriber attaches a subscriber identification device to his or her mobile radio, he or she can know whether or not he or she is ready to receive radio paging service, and if necessary, he or she can stop by the nearest location registration machine and use the service. By tuning to the radio channel from a base station within your area, you can receive radio paging service no matter where you move. (Example) Next, an example of the wide area radio paging system according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a wide area radio paging system/. %, for example, an example is shown in which it is applied to a wide area radio paging system for a portable radio that can be easily carried by subscribers. In the figure, base stations 1 and 2 are base stations to which radio channels of predetermined frequencies are assigned, and which send out paging signals to registered subscribers. Furthermore, wireless zones 3 and 4 indicated by dotted lines are ranges in which the base station 1 or 2 can send out a paging signal to the subscriber, respectively.In other words, they indicate the effective range of the received electric field level of the subscriber. It is something. Telephone stations 5 and 6 are connected to respective base stations l and 2.
This is the telephone station to which the company belongs, and the registration station that registers subscribers for wireless calls. The registration stations 5 and 6 clear subscriber list memories and record subscribers who are moving outside their own area in this memory for a certain period of time (for example, 24 hours). The telephone station 5 is connected to the base station 1 belonging to it via the base station-to-telephone office line network 7, and the telephone station 6 is connected to the base station 2 belonging to it via the base station-to-telephone station line network 8. There is. Further, the telephone stations 5 and 6 are connected by a telephone station mutual line network l2. The base station l is also connected to the location registration device 10 via a location registration device-base station line network 11. The location registration device IO updates the contents of the variable code column of the subscriber 10 card 25 (FIG. 3), which will be described later, and
1. The base station is configured to report a subscriber's movement information to the subscriber's registration office through the telephone station line network 7 and line network +2. In addition, in the figure, only one location registration device 10 is connected to the base station l, but the location registration device 4llll
Multiple units of O are connected to the base station as necessary. FIG. 2 shows an example of the frame structure of a radio paging signal from the base station 1 in the intermittent reception method, which is the reception method of this embodiment. As shown in the figure, one frame of a radio paging signal is composed of a paging signal section divided into N groups and a preamble signal section preceding this. The preamble signal portion includes an area code and a channel number code, which are unique codes of base station l. The subscriber can recognize the availability of wireless calls based on the information in the preamble signal section. Figure WS3 shows a functional block diagram of the portable radio device 9 in this embodiment. The mobile radio y19 is a reception-only radio device such as a pager, and includes an antenna 21, a radio reception section 22, a channel control section 23, a signal processing section 24, a power switch 28, and a reset button 27.
, a flag memory 28, a speaker 29, an LED display lamp 30, and a liquid crystal display panel 3l. portable radio 9
It is also possible to detachably attach a subscriber 10 card 25 shown in the figure, and it functions as a mobile station 9 by attaching the card 25. The 10 card 25 is a card-shaped subscriber identification device for identifying subscribers registered with the base station 1, and includes a subscriber registration number code, a channel number code, a group number code,
It has a fixed code field for storing a subscriber registration code for identifying the subscriber, such as a registered area number, and a variable code field for storing the area code and channel number code of the base station l to which the subscriber's current location belongs. The antenna 2l is an antenna that receives radio paging signals, messages, etc. from the base station l, and receives the received signals by radio. output to the communication section 22. The wireless receiving section 22
When a radio wave with a channel number stored in the variable code column of the n card 25 is sent from the antenna 2l, this is a receiving unit that notifies the signal processing unit 24 that the radio wave with the channel number has been received via the output 220. ．． The channel control section 23 is connected to the signal processing section 24 via an input 240 and to the radio receiving section 22 via an output 230. The channel control unit 23 is a control unit that sets the radio reception unit 22 to receive radio waves corresponding to the channel number stored in the variable code column of the subscriber 10 card 25. Power switch 2B is portable radio 4I! 9, and is connected to the signal processing section 24 via an output 270. The reset button 27 is connected to the signal processing section 24 via an output 270. The power switch 28 and the reset button 27 have the function of setting the variable code field of the subscriber 10 card 25 to the self-registered area code. In other words, with the 10 cards 25 installed, the power switch 26
By turning on or pressing the reset button 27, a function is provided to transfer the subscriber registration code in the fixed code field to the variable code field of the In card 25. The speaker 29 is connected to the signal processing section 24 via an input 242. The speaker 29 is a ringer that outputs a ringing tone or a tone different from the ringing tone to the subscriber under the control of the signal processing unit 24. By listening to this tone, the subscriber can know that the subscriber has received a paging service or that the subscriber is not in the state of receiving a paging service. The liquid crystal display panel 3l is connected to the signal processing section 24 via an input 240.
This is a display unit that is connected to the LCD and displays messages during call services on a liquid crystal display. The erase switch 32 is connected to the signal processing section 24 via an output 320, and is a switch that sequentially erases the ringing tone of the speaker 29 and the display on the liquid crystal display panel 3l. Note that the function of the erase switch 32 is the same as that of a conventional radio paging system. The signal processing unit 24 of the portable radio 9 transmits the radio waves from the base station 1 to which the current location belongs by notifying the channel control unit 23 of the channel number stored in the variable code column of the input power code 25. This is a processing unit that enables reception. Signal processing section 2
4 has a flag memory 28 inside it. An important function of the present embodiment related to the signal processing unit 24 is to inform the subscriber at the current location of the subscriber whether or not the radio paging service is available from the base station l at this location. It is in. That is, first, turn on the power switch 2 of the mobile radio a9.
B is turned on, and if it is not possible to receive a preamble signal with a predetermined received electric field level or higher within a certain period of time, for example within a range of about 0.2 to 1 minute, the flag memory 28 in the signal processing section 24 is Set the content to "l" (it is set to "0" when the power switch is turned on). In addition, when reception is possible at a predetermined reception electric field level or higher, the region information of the base station 1 in the received preamble signal section is compared with the stored content in the fluctuation code column of the IO card 25, and whether there is a match or a mismatch is determined. The contents of the flag memory 28 are set to ``0'' or ``l'' in response to this. Flag memory 2
The content of 8 is “0” to “1” or “1” to “0”
When the change occurs, the speaker 29 generates a sound with a tone different from the Yokota tone to notify the subscriber that the radio 9 has left the calling service area of the 10 card 25 or entered the area from outside. Let me know what happened. Also, during the period when the flag memory 28 is rlJ. The LED indicator lamp 30 is turned on to inform the subscriber that the mobile station 9 is outside the calling service area. Note that when the mobile station 9 is within the calling service area, the reception processing unit of the mobile radio Ia9 intermittently receives and demodulates the calling signal and message sent from the base station 1 to the subscriber number code of the subscriber. , controls the speaker 29 to output a ringing tone, and displays the contents of the received message on the liquid crystal display panel 31. FIG. 4 shows a functional block diagram of the location registration device 10 in this embodiment. The location registration device 10 includes a registration signal processing unit 4l, a registration 4 in which the area code, channel number code, etc. of the base station l to which the location registration device 10 belongs are stored.
l! It has a RON 42, a timer 43, and a line termination unit 44 that is connected to the line network between the location registration 41110 and the base station IM or location registration allO. Location registration machine! 0
Similarly to the portable radio device 9, the subscriber 10 card 25 can also be detachably attached. The registration signal processing unit 41
If the contents of the current location code such as the area code and channel number code stored in the variable code field of the I/O card 25 are different from the contents of the register ROM 42, the current location code in the variable code field of this IO card 25 is Update the code to the contents of the registration machine ROM 42. In addition, the signal processing section 4
After this update, the contents of the subscriber registration number code in the fixed code column of this ID card 25 and the registered allRON 42
It has a function to add the contents of the local location code of , the time of the timer 43 , and send it to the line termination unit 44 via the output 410 . The location registration machine IO in this embodiment takes into account the behavioral patterns of subscribers, and is designed to register various transportation terminals such as railway stations, major bus terminals, and airport lobbies, as well as major points in urban areas and tourist spots. It is preferable that they be placed in many locations within the area. In this case,
By linking these plurality of location registration devices, a loop line is constructed which connects to the respective base station 1 or telephone station 7, and information from each location registration device can be transmitted, for example, by time division multiplexing. For example, a subscriber A who is registered as a subscriber in the telephone station 6 shown in FIG. An example of the operation when moving inside is explained below. When the subscriber A attaches the subscriber ID card 25 to the portable radio device 9 in the wireless zone 4 and turns on the power switch 26, the mobile station 9 with the subscriber ID card 25 attached to the portable radio device 9 is connected to the base station. Since it is possible to receive a preamplified signal part with a predetermined received electric field level or higher from the station 2, and the region information of the base station 2 in the received preamplified signal part matches the stored content of the fluctuation code column of the card 25, a flag is set. The contents of the memory 28 are set to rQJ. When the subscriber A leaves the wireless zone 4, the mobile station 9 cannot receive the preamble signal part higher than the predetermined received electric field level from the base station 2. When it becomes impossible, the contents of the flag memory 28 are set to rlJ. When the mobile station 9 changes the memory 2B from "0" to rlJ, the mobile station 9 causes the speaker 28 to sound in a tone different from the calling tone and lights up the LED display lamp 30. This allows subscriber A to know that he/she is out of the radio callable area. Note that the speaker 25 generates a sound when reception is disabled, and the lamp 30 lights up continuously when radio calling is disabled. As a result, even if subscriber A carries the mobile station in his pocket, for example, he can hear from the tone of the speaker 29 that he is out of the callable area.
Furthermore, even if you miss this ringing sound, you can know from the indicator lamp 30 whether or not you are in a radio callable area. Furthermore, since the speaker 25 does not continuously sound, battery consumption is prevented and the system is not noisy. When subscriber A learns that he is out of the callable area and wants to receive radio paging service, he calls subscriber! from radio a9. The user removes the D card 25 and inserts the card 25 into the nearest location registration device, for example, the location registration device IO in wireless zone 3. When the card 25 is inserted into the location registration machine IO,
Since the contents of the current location code of the card 25 and the contents of the registration device ROM 42 of the location registration device IO are different, the ROM 4
The current location code in the variable code column of card 25 is updated according to the contents of step 2. When the erotic card 25 with the updated current location code in the variable code field is attached to the portable radio device 9,
The memory contents of the variable code column of card 25 and the area information of base station l match. As a result, the contents of the flag memory 28 change from rlJ to rQJ, and the mobile station 9 can receive a radio paging service from the base station l to which the location registration device 10 is connected. Also, the contents of the memory 28 are rl
When the number changes from J to "0", a ringing sound different from the calling tone is output from the speaker 29, so that subscriber A can recognize that he is in a state where he can receive the wireless paging service. Also, when the card 25 is inserted into the location registration device IO, the contents of the fixed code column of the card 25 and this registration IIROM 42
The contents of the current location code of subscriber A are transmitted to the registered telephone station 6 of subscriber A along with the time of the timer 43. When the registered telephone station 6 receives the location information of the mobile station 9 from the telephone station 5 outside the local area, it recognizes that the mobile station 9 is moving outside its own area, and transfers the information of the mobile station 9 outside the area. The contents are stored in the middle subscriber list memory for a certain period of time. When the registration station 6 makes a call to a subscriber A registered with its own station, the registration station 6 checks the list memory of subscribers who are moving out of the area, and thereby checks whether the subscriber A is moving outside of its own area. The registration station 6 registers the subscriber A from the subscriber list as the base station l of the telephone station 5.
When it recognizes that it is moving into zone 3 of
2, a request is made to the telephone station 5 for wireless paging service for subscriber A. When telephone station 5 receives this request, it instructs base station 1 to provide radio paging service to subscriber A's mobile station 9. When the base station 1 receives this instruction and transmits, for example, a radio paging signal and a ' message to the mobile station 9, the mobile station 9
A calling signal and a message are intermittently received and demodulated, a calling tone is generated from a speaker 28, and the contents of the received message are displayed on a liquid crystal display panel 31. When subscriber A confirms the call tone and message display, he sequentially erases them using the erase switch 32. Note that the registration station 7 stores subscriber A in the subscriber list memory.
If there is no location information for subscriber A, it is determined that subscriber A is within the local area, and base station 2 transmits a paging signal. When the subscriber A leaves the radio zone 3 of the base station I, the mobile station 9 becomes unable to receive the preamble signal portion having a predetermined received electric field level or higher. Therefore, the contents of the flag memory 2B change from "0" to "1" in the same manner as described above, and the speaker 29 and lamp 30 notify the subscriber A that he/she is out of the radio callable area. Additionally, if subscriber A turns on the reset button 27 when he returns to his own registration area while moving, the subscriber registration code in the fixed code field of the Ill card 25 is transferred to the variable code field of the card 25. ．． As a result, the area information in the preamble signal part received from its own base station 2 matches the stored content in the variable code field of the In card 25, so the mobile station 9 sets the flag memory 28 to "O" and Call service becomes possible. At this time as well, the speaker 29 notifies subscriber A that the subscriber A has entered the radio callable area. Furthermore, it is also possible to apply the subscriber number of the company classification to the subscriber group of companies, which makes it possible to more efficiently check the memory of the current location. (Effects of the Invention) According to the present invention, when the mobile station of a subscriber who is moving not only within the own subscriber registration station area but also across a wide area passes near the boundary of the area where the calling service is valid, If the subscriber is outside the valid area, the subscriber is notified of this fact, the contents of the subscriber's subscriber identification device are updated using the nearest location registration machine, and the area code of the subscriber's current location is sent to the subscriber. This system allows calls to be sent to the subscriber's registration station from the base station corresponding to the subscriber's current location, making it easy to extend wireless calls over a wide area. Furthermore, when a base station makes a call, invalid calls can be kept to a minimum by excluding subscribers registered with the base station who are moving in other areas, resulting in fewer subscribers per wireless channel. Capacity can be increased. Additionally, subscribers registered at other base stations who are moving within one base station are also known through the network between base stations, making it possible to make mobile radio calls extremely efficiently throughout the country. The wide-area wireless calling function of the present invention provides an extremely advantageous means of communication under the current trend in which behavioral patterns in social life, including work and leisure, are being significantly expanded by various means of transportation. Therefore, the social effects of the present invention are extremely large.

[Brief Description of the Drawings] Fig. 1 is a system configuration diagram showing an embodiment of a wide area radio paging system according to the present invention. Fig. 2 is a frame configuration diagram showing a frame structure of a radio paging signal in the system of Fig. 1. , FIG. 3 is a functional block diagram showing an example of the configuration of a portable radio device applied to the system of FIG. 1. FIG. 4 is a functional block diagram showing an example of the configuration of a location registration device applied to the system of FIG. 1. l, 3, 5, 9. 1G. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 41. Part No. 1 2. ．． Base station 4. ．． Wireless zone 6. ．． Telephone office. ．． ．． Portable radio. ．． ．． Location registration machine. ．． ．． Wireless receiving section. ．． ．． Channel control section. ．． ．． Signal processing section. ．． ．． Subscriber 10 cards. ．． ．． Power switch. ．． ．． Reset button. ．． ．． Flag memory. ．． ．． Speaker. ．． ．． LED display. ．． ．． Liquid crystal display panel. ．． ．． Registration signal processing section 42. ．． ．． ．． Registration machine ROM 43. ．． ．． ．． Timer Patent Applicant Oki Electric Industry Co., Ltd. Agent Katori Takao Maruyama Takao As ν-Muspring 1 to 2rlA +>

Claims (1)

[Claims] 1. In a wide area radio paging system in which a plurality of base stations are installed that communicate with mobile stations registered at a subscription registration station via predetermined radio channels, the system functions as a mobile station. a fixed code field that is detachable from the portable radio and stores codes including a subscriber registration number code, a subscriber registration area code, a channel number code, and a group number code, which are a group of codes unique to the registered subscriber; a subscriber identification device having a variable code field in which a code including an area code of the current location and a channel number code representing the dynamic state of the subscriber is stored; and a location registration device that updates the variable code field of the area code and channel number code of the device and notifies the subscriber's subscriber registration station of the subscriber's current location area code that has been updated. , the portable wireless device functions as the mobile station by being equipped with the subscriber identification device, and when the subscriber identification device is inserted into the location registration device, the location registration device Transfer the area code and channel number code of the base station to which the registration device belongs to the variable code column of the subscriber identification device, and also write the subscriber registration number code and the current location area code of the fixed code column of the subscriber identification device. A wide area radio paging system, characterized in that it is possible to make a radio paging of a mobile station moving outside the area of its own registration station by notifying the mobile station's subscriber registration station. 2. The system according to claim 1, wherein the portable radio device includes a power switch of the portable radio device and a reset button for resetting a variable code column of the subscriber identification device; with the subscriber identification device attached to the
A portable wireless device characterized in that when either the power switch or the reset button is operated, a subscriber registration code in a fixed code column of the subscriber identification device is transferred to a variable code column of the subscriber identification device. . 3. In the system according to claim 1 or 2, the portable radio device includes: a ringing means for notifying the subscriber of the radio call availability status by an audible sound; and a visible display for notifying the subscriber of the radio call availability status by a visual display. display means, with the subscriber identification device attached to the mobile radio, operate either the power switch or the reset button to display the transmission wave from the base station within a certain period of time. If the preamble signal part cannot be received at a predetermined receiving electric field level or higher, the preamble signal part transmitted from the base station is received and compared with the corresponding code stored in the variable code column of the subscriber identification device. In any of the cases where there is a difference, the ringing means generates an audible sound notifying that the user is out of the radio callable area, and the audible sound is generated continuously during the period in which the radio call is unavailable. 1. A portable radio device, characterized in that a visible display means visually indicates that the device is in a radio call unavailable area. 4. The wide area radio paging system according to claim 1, wherein the location registration device is located near major intersections of highways and at locations including land, sea, and air transportation terminals.