JPH0744718B2 - Wide area wireless calling system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to mobile communication, and more particularly to a wide area wireless paging system for wirelessly calling a subscriber who moves in a national movement range.

(Prior Art) Conventionally, a so-called pager system has been put into practical use as a communication means to a mobile body, which wirelessly calls a subscriber who is a mobile body in a specific area from a base station. In such a portable mobile radio system, in order to reduce the size and weight of the portable device, a battery with a capacity as small as possible is used, and as a wireless device, a transmitter with a large power consumption is excluded and only a receiver is used. , One-way communication from the base station to the mobile unit. That is,
Subscribers whose subscriber registration stations are in a specific area are divided into several groups, and the base station transmits call signals in sequence. Each subscriber's radio is only in the communication time zone assigned to its own group. The so-called discontinuous reception method for setting the reception state is applied. In addition, recently, a system that can transmit a simple message in addition to a calling signal has been put into practical use.

(Problems to be Solved by the Invention) Communication between a base station and a mobile unit in such a conventional technique is basically a call only within a region where a subscriber is registered and subscribes within this region. It does not function as a radio call for a subscriber who has left. In addition, when there are many subscribers who have gone out of the area of the registration station, calls from the base station to these subscribers are invalid calls, resulting in a large loss in terms of effective use of wireless channels. On the other hand, in recent years, the social life of individuals has been expanded to the whole area of the country due to the development of transportation facilities, and the use thereof by the prior art is remarkably inconvenient.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks of the prior art and to provide a wide area radio calling system capable of covering the entire nation.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a wide area wireless system in which a plurality of base stations that communicate with a mobile station registered in a subscription registration station via a predetermined wireless channel are installed. The calling system is detachably attached to a portable wireless device that functions as a mobile station, and is a code including a subscriber registration number code, a subscription registration area code, a channel number code and a group number code, which is a subscriber-specific code group for subscription registration. A subscriber identification device having a fixed code field in which is stored, and a variable code field in which a code including a region code and a channel number code to which the current position that expresses the dynamic state of the subscriber is stored, and a base station The area code and channel number code of the subscriber identification device under the jurisdiction are updated, and the subscribers who have made the update The mobile wireless device functions as a mobile station when the subscriber identification device is installed, and the location identification device that reports the current location area code to the subscriber registration station of the subscriber is provided. When inserted in the registration machine, the location registration machine transfers the machine code and channel number code of the base station to which the location registration machine belongs to the variable code column of the subscriber identification device and the fixed code column of the subscriber identification device. By notifying the subscriber registration number code and the current location area code of (1) to the subscription registration station of the mobile station, the radio call of the mobile station moving outside the self-registered station area becomes possible.

Further, the portable wireless device according to the present invention has a power switch and a reset button for resetting the variable code column of the subscriber identification device, and the power switch is equipped with the subscriber identification device mounted on the portable wireless device. When one of the and reset buttons is operated, the subscriber registration code in the fixed code column of the subscriber identification device is transferred to the variable code column of the subscriber identification device.

(Operation) According to the present invention, the subscriber identification device has a unique code column for storing a subscriber's number code, a subscription registration area code, and the like, and a variable code column for storing information related to the current position on the move. To provide. Therefore, if the subscriber attaches the subscriber identification device to the portable wireless device, he / she can know whether or not he / she can enjoy the radio call service. If necessary, he / she can stop by the nearest location registration device and By matching the radio channel from the base station inside, you can receive the radio paging service wherever you move.

(Embodiment) Next, an embodiment of a wide area wireless paging system according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an embodiment in which the wide area wireless paging system according to the present invention is applied to a wide area wireless paging system of a portable wireless device which a subscriber can easily carry. In the figure, base stations 1 and 2 are base stations to which radio channels of predetermined frequencies are respectively allocated and which send out a calling signal to subscribers who are registered as subscribers. Radio zones 3 and 4 shown by dotted lines are ranges within which the base station 1 or 2 can send a calling signal to the subscriber, in other words, an effective range of the reception electric field level of the subscriber. It is a thing.

The telephone stations 5 and 6 are telephone stations to which the respective base stations 1 and 2 belong, and also registration stations for performing subscriber registration for radio calling. The registration stations 5 and 6 have subscriber list memories, and record subscribers moving outside their own area in this memory for a fixed time (for example, 24 hours). The telephone station 5 is connected to the base station 1 belonging to it via the base station-telephone line network 7, and the telephone station 6 is connected to the base station 2 belonging to it via the base station-telephone line network 8. There is. The telephone stations 5 and 6 are connected by a telephone station interconnection network 12. The base station 1 is also connected to the position register 10 via a position register-base station network 11. The position registration machine 10 updates the contents of the variable code column of the subscriber ID card 25 (FIG. 3) described later, and moves the subscriber through the line network 11, base station-telephone station line network 7 and line network 12. It is configured to report the information to the subscriber registration office of this subscriber. Although only one position registration device 10 is connected to the base station 1 in the figure, a plurality of position registration devices 10 are connected to the base station as necessary.

FIG. 2 shows an example of the frame structure of the radio paging signal from the base station 1 in the intermittent receiving system which is the receiving system of this embodiment. As shown in the figure, one frame of the 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 a region code and a channel number code, which are unique codes of the base station 1. The subscriber can recognize the radio call available status from the information in the preamble signal portion.

FIG. 3 shows a functional block diagram of the portable wireless device 9 in this embodiment. The portable radio 9 is a reception-only radio such as a pager and has an antenna.
21, wireless reception unit 22, channel control unit 23, signal processing unit 2
4, power switch 26, reset button 27, flag memory 2
8, speaker 29, LED display lamp 30 and liquid crystal display panel
Has 31. The portable wireless device 9 also has a subscriber ID shown in FIG.
The card 25 can be detachably attached, and the card 25 functions as the mobile station 9 by attaching the card 25.

The ID card 25 is a card-shaped subscriber identification device that identifies a subscriber registered in the base station 1, and identifies a subscriber such as a subscriber registration number code, a channel number code, a group number code, and a registration area number. It has a fixed code column for storing the subscriber registration code and a variable code column for storing the area code of the base station 1 to which the subscriber's current position belongs and the channel number code of the current position area.

The antenna 21 is a receiving antenna that receives a radio call signal, a message, and the like from the base station 1, and outputs a received signal to the radio receiving unit 22. When the radio wave of the channel number stored in the variation code column of the ID card 25 is sent from the antenna 21, the radio receiving unit 22 informs the signal processing unit 24 that the radio wave of the channel number is received via the output 220. It is a receiving unit for notifying.

The channel control unit 23 receives the signal processing unit 24 via the input 240.
The output 230 is also connected to the wireless receiver 22. The channel control unit 23 is a control unit that sets so that the radio reception unit 22 can receive the radio wave of the channel number stored in the variation code column of the subscriber ID card 25.

The power switch 26 is a power switch of the portable wireless device 9, and is connected to the signal processing unit 24 via the output 270. The reset button 27 is connected to the signal processing unit 24 via the output 270. The power switch 26 and the reset button 27 are
It has the function of setting the variable code field of the subscriber ID card 25 to the self-registered area code. That is, by turning on the power switch 26 or pressing the reset button 27 with the ID card 25 attached, a function of transferring the subscriber registration code in the fixed code field to the variable code field of the ID card 25 is added.

The speaker 29 is connected to the signal processing unit 24 via the input 242. The speaker 29 is a ringing unit that outputs a ringing tone or a tone color different from the ringing tone to the subscriber under the control of the signal processing unit 24. The subscriber can know that he / she has received the paging service or is not in the reception state of the paging service by distinguishing this tone color. The liquid crystal display panel 31 is a display unit that is connected to the signal processing unit 24 via the input 240 and displays a message at the time of calling service on the liquid crystal. The erase switch 32 is a switch that is connected to the signal processing unit 24 via the output 320 and erases the ringing tone of the speaker 29 and the display of the liquid crystal display panel 31 sequentially. The erase switch
The 32 functions are equivalent to the conventional radio paging system.

The signal processing unit 24 of the mobile wireless device 9 notifies the channel number stored in the variation code column of the ID card 25 to the channel control unit 23, so that the base station 1 to which the current position belongs.
It is a processing unit that enables reception of radio waves from. The signal processing unit 24 has a flag memory 28 inside.

An important function of the present embodiment relating to the signal processing unit 24 is to inform the subscriber whether or not the radio paging service is valid from the base station 1 at this position at the current position where the subscriber is moving. . That is, first, when the power switch 26 of the portable wireless device 9 is turned on, and the reception of the preamble signal portion equal to or higher than the predetermined reception electric field level cannot be received by a certain time within a range of, for example, 0.2 to 1 minute, signal processing Flag memory in section 24
Set the contents of 28 to "1" (set to "0" when the power switch is turned on).

In addition, when it is possible to receive a signal having a level equal to or higher than a predetermined reception electric field level, the area information of the base station 1 of the received preamble signal portion and the stored content of the variation code column of the ID card 25 are compared and collated to determine whether or not they match. The contents of the flag memory 28 are set to "0" or "1" corresponding to the above. When the content of the flag memory 28 changes from "0" to "1" or from "1" to "0", the speaker 29 generates a tone color different from the ring tone, and the radio 9 is sent to the subscriber. Card 25 Call Service Notifies you that you have left or left the area. Further, while the flag memory 28 is "1", the LED display lamp 30 is turned over to inform the subscriber that the mobile station 9 is outside the calling service area.

When the mobile station 9 is within the paging service area, the reception processing unit of the portable wireless device 9 intermittently receives and demodulates the paging signal and message transmitted from the base station 1 to the subscriber number code of the subscriber. Then, the speaker 29 is controlled to output the ringing tone, and the received message content is displayed on the liquid crystal display panel 31.

FIG. 4 shows a functional block diagram of the position registration machine 10 in this embodiment. The position registration machine 10 is a registration signal processing unit.
41, a registration device ROM 42 in which the area code, channel number code, etc. of the base station 1 to which the position registration device 10 belongs are stored,
Timer 43, location register 10-between base stations 1 or location register
It has a line terminating device unit 44 connected to a line network between the ten. The position registration device 10 is also a subscriber like the mobile wireless device 9.
The ID card 25 can be attached and removed freely.

If the content of the current position code such as the area code and channel number code stored in the variation code column of the ID card 25 and the content of the registration device ROM 42 are different, the registration signal processing unit 41 determines the variation code of the ID card 25. The current position code in the column is updated to the contents of the registered machine ROM 42. In addition, the signal processing unit 41
After this update, the contents of the fixed code column subscriber registration number code of this ID card 25 and the contents of the current position code of the registration machine ROM 42 are added to the time of the timer 43, and the line terminating device is sent via the output 410. It has a function of sending to the unit 44.

In addition, the position registration machine 10 in the present embodiment considers the behavior pattern of the subscriber, for example, railway stations, main bus terminals, terminals of various transportation facilities such as airport lobbies and urban areas, main points of tourist destinations, etc. It is preferable to be arranged in many places in the area of. In this case, a loop line connecting to the base station 1 or telephone station 7 in charge is formed by connecting the plurality of position registration machines 10, and the information from each position recording machine is transmitted by, for example, time division multiplexing. can do.

For example, a subscriber A who has registered with the telephone station 6 shown in FIG. 1 has a wireless zone 4 within the area of the self-registered registration station and a wireless zone 3 of the base station 1 outside the own station area. An example of the operation when moving to is described. When the subscriber A mounts the subscriber ID card 25 on the mobile wireless device 9 and turns on the power switch 26 in the wireless zone 4, the mobile station 9 with the subscriber ID card 25 mounted on the mobile wireless device 9 is It is possible to receive a preamble signal part having a predetermined reception electric field level or higher from the station 2, and the base station 2 area information of the received preamble signal part and the stored content of the variation code column of the card 25 match, so the flag memory Set the contents of 28 to "0".

When the subscriber A leaves the wireless zone 4, it becomes impossible to receive the preamble signal portion having a predetermined reception electric field level or higher from the base station 2. Therefore, the mobile station 9 stores the flag memory 28 at the time when the reception becomes impossible. Set the content to "1". Mobile station 9
Also, when the memory 28 is changed from "0" to "1", the speaker 29 is made to sound with a tone color different from the ring tone and the LED display lamp 30 is turned on. Subscriber A
Can know that he is out of the radio coverage area.
It should be noted that the speaker 25 produces a sound when the reception is disabled, and the lamp 30 is continuously lit in the wireless call disabled state. As a result, the subscriber A can know that he / she is out of the calling range by the tone color of the speaker 29 even if he / she carries the mobile station in his / her pocket or the like. It is possible to know whether or not the user is in the wireless callable area by 30. Furthermore, since the speaker 25 does not continuously ring, battery consumption is prevented and no annoyance occurs.

If the subscriber A wants to use the radio paging service when he / she knows that he / she is out of the callable area, the subscriber A uses the radio 9
The ID card 25 is removed, and the card 25 is inserted into the nearest position registration device, for example, the position registration device 10 in the wireless zone 3.
When the card 25 is inserted into the position registration device 10, the contents of the current position code of the card 25 and the contents of the registration device ROM 42 of the position registration device 10 are different. Code updated.

ID card 25 whose current position code in the variable code column has been updated
When is attached to the portable wireless device 9, the stored contents of the variation code column of the card 25 and the area information of the base station 1 match. As a result, the content of the flag memory 28 changes from "1" to "0", and the mobile station 9 can receive the radio paging service from the base station 1 to which the position register 10 is connected. When the content of the memory 28 changes from "1" to "0", a sound different from the ringing tone is output from the speaker 29,
The subscriber A can recognize that he is ready to receive the radio call service.

When the card 25 is inserted into the position registration device 10, the card 25
The contents of the fixed code column and the contents of the current position code of the registration machine ROM 42 are transmitted to the registered telephone station 6 of the subscriber A together with the time of the timer 43. When the registered telephone station 6 receives the position information of the mobile station 9 from the telephone station 5 outside the area, the registered telephone station 6
Recognizes that it is moving outside its own area, and stores the information of the mobile station 9 in the outside-area moving subscriber list memory for a certain period of time.

When the registration station 6 makes a call to the subscriber A who is registered as an hourly office, the registration station 6 collates with the subscriber list memory that is moving outside the area, and thereby checks whether the subscriber A is moving outside the area. From the subscriber list, the registration station 6 is the base station 1 where the subscriber A is the telephone station 5.
If you recognize that you are moving into Zone 3 of
Request the subscriber A for the radio call service from the telephone station 5. When the telephone station 5 receives this request, it instructs the base station 1 to provide the mobile station 9 of the subscriber A with a radio call service.

When the base station 1 receives this instruction and transmits, for example, a radio ringing signal and a message to the mobile station 9, the mobile station 9 intermittently receives and demodulates the ringing signal and the message, and the speaker 29 produces a ringing tone. At the same time, the content of the received message is displayed on the liquid crystal display panel 31. When the subscriber A confirms the ring tone and the message display, the subscriber A sequentially erases them by the erase switch 32. Note that the registration station 7 determines that the subscriber A is in its own area when the subscriber A does not have the position storage information in the subscriber list memory, and transmits the calling signal from the base station 2.

When the subscriber A leaves the wireless zone 3 of the base station 1, the mobile station 9 becomes unable to receive the preamble signal part having a predetermined reception electric field level or higher. Therefore, the contents of the flag memory 28 are changed from "0" to "1" in the same manner as described above, and the speaker 29
And the lamp 30 notifies the subscriber A that he / she is out of the radio calling range.

If the reset button 27 is turned on when the subscriber A returns to the self-registration area while moving, the subscriber registration code in the fixed code column of the ID card 25 is transferred to the variable code column of the card 25. . As a result, the area information of the preamble signal portion received from the own base station 2 matches the stored content of the variation code column of the ID card 25, so the mobile station 9 sets the flag memory 28 to “0” and Call service is possible. Also at this time, the subscriber 29 is notified by the speaker 29 that the wireless callable area has been entered.

Note that it is also possible to apply a subscriber number of a corporate classification to a group of corporate subscribers, which makes it possible to improve the efficiency of memory matching at the current position.

(Effects of the Invention) According to the present invention, the mobile station of a subscriber who is moving not only within the self-registered registration area but also over a wide area, when the subscriber passes near the boundary of the area where the calling service is effective. If it is outside the valid area, notify the subscriber to that effect, update the content of the subscriber identification device of the subscriber with the nearest location register, and add the area code of the subscriber's current location to the subscriber. Since the base station corresponding to the subscriber's current position can be transmitted by notifying the registration office and calling the subscriber, the wide area of the radio call can be easily achieved. In addition, when making a call from the base station, invalid calls can be minimized by excluding those registered in the local station that are moving to other areas, and as a result, subscribers per wireless channel can be minimized. The capacity can be increased. Further, since subscribers registered in other base stations who are moving within one base station area are also known through the line network between the base stations, mobile radio calling can be made extremely efficient in the whole country.

The wide area radio calling function of the present invention provides an extremely advantageous communication means under the trend of the era in which the behavior patterns in social life including business or leisure are being significantly expanded by various transportation means. The social effect of the present invention is extremely large.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing an embodiment of a wide area wireless paging system according to the present invention, FIG. 2 is a frame configuration diagram showing a frame configuration of a wireless paging signal in the system of FIG. 1, and FIG. 1 is a functional block diagram showing a configuration example of a portable wireless device applied to the system of FIG. 1, and FIG. 4 is a functional block diagram showing a configuration example of a position registration device applied to the system of FIG. Explanation of symbols of main parts 1, 2 ...... Base station 3, 4 ...... Wireless zone 5, 6 ...... Telephone station 9 ...... Portable radio device 10 ...... Position registration device 22 ...... Radio receiver 23 ...... Channel control Unit 24 …… Signal processing unit 25 …… Subscriber ID card 26 …… Power switch 27 …… Reset button 28 …… Flag memory 29 …… Speaker 30 …… LED display 31 …… Liquid crystal display panel 41 …… Registered signal processing Part 42 …… Registered machine ROM 43 …… Timer

Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical indication location H04Q 7/14 7/34 7304-5K H04B 7/26 106 A 7304-5K 106 B

Claims (4)

[Claims] 1. A wide area wireless paging system in which a plurality of base stations for communicating with a mobile station registered in a subscription registration station through a predetermined wireless channel are installed, the system being a portable wireless device functioning as a mobile station. The subscriber registration code that is removable and is a subscriber-specific code group that is a subscriber-specific code group for subscription registration, including a subscriber registration area code, a subscription registration location channel number code, and a group number code. A subscriber identification device having a code field and a variable code field in which a code including a current location area code of a current location expressing a dynamic state of a subscriber and a channel number code of the current location area is stored, and the base station And updates the current location area code and the channel number code of the current location area in the variable code column of the subscriber identification device. And a position recorder for reporting the current location area code of the subscriber who has made the update to the subscriber registration station of the subscriber, wherein the portable wireless device is equipped with the subscriber identification device. The subscriber registration device functions as a mobile station that receives radio waves of the channel number code of the current location area described in the variable code column of the subscriber identification device, and when the subscriber identification device is inserted into the location registration device, the location registration device Transfers the current location area code and channel number code of the base station to which the position recorder belongs to the variable code column of the subscriber identification device, and the subscriber registration number code and the subscriber registration number code of the fixed code column of the subscriber identification device. The current location area code is reported to the mobile station's subscription registration station, and the subscription registration station receiving the notification is based on the mobile station's current location area code reported to the subscription registration station. In addition, a call signal for the mobile station is transmitted to the area of the current location area code to enable the wireless call of a mobile station that has moved other than the self-registered station. 2. The system according to claim 1, wherein the portable wireless device has a power switch of the portable wireless device and a reset button for resetting a variable code column of the subscriber identification device. With the subscriber identification device attached to the portable wireless device,
When any one of the power switch and the reset button is operated, the subscriber registration area code and the channel number code of the subscriber registration position in the fixed code column of the subscriber identification device are changed to the variable code column of the subscriber identification device. A portable wireless device characterized by being transferred to. 3. The system according to claim 1 or 2, wherein the portable wireless device notifies the subscriber of a wireless callable status by an audible sound, and a visual display indicates the wireless callable status to the subscriber. A visual display means for notifying, and in a state in which the subscriber identification device is attached to the portable wireless device, one of the power switch and the reset button is operated, and after a fixed time, the The subscriber identification device when the radio wave of the transmitted preamble signal portion including the channel number code of the current position area cannot be received at a predetermined reception level or higher, and when the preamble signal portion transmitted from the base station is received. If there is a difference in comparison with the corresponding code stored in the variable code column of No., it is out of the wireless callable range by the ringing means. A portable radio device, which generates an audible sound to be notified, and continuously notifies the visible display by the visible display means during the period when the wireless call is impossible, by the visible display. . 4. The wide area wireless calling system according to claim 1, wherein the position registering machine is arranged near a main intersection of a main road and at a position including a terminal of a land, sea and air transportation agency.