JPH1141639A - Mobile communication terminal and mobile communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain detailed service information of a region in a narrower area by receiving a paging calling signal and a GPS signal, measuring and discriminating its own position, and extracting message information for its own. SOLUTION: A pager terminal 3 receives a paging calling signal 230 and identifies it as a calling for its own when comparison identification information (comparison ID) of its own satisfies identification conditions stipulated by a calling ID. The calling ID includes an area ID. The paging terminal 3 receives a GPS signal 500 from a GPS satellite, determines its own position and stores determination information in a RAM 302. The RAM 302 stores the determination information of the present (the current time) and the last time (two minutes ago, for example). A CPU 301 calculates a motion speed and direction of its own therefrom. Thus, before the self's entering a specified area, information on the received a paging calling signal by specifying the area can be extracted after entrance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication terminal capable of extracting information corresponding to its own position and a mobile communication system using the same.

[0002]

2. Description of the Related Art Conventionally, as this type of mobile communication terminal and mobile communication system, for example, there are a pager terminal and a paging system. In a service company that provides this kind of paging system, in a predetermined service area contracted with a paging subscriber, a specific reception is performed for each pager terminal of each subscriber or for a group to which the pager terminal belongs. An address is allocated, and individual identification information (individual ID) or group identification information (group ID) corresponding to the received address is included in a paging call signal to each pager terminal and transmitted.

[0003] The paging call signal can contain various message information and the like. The service company can provide information received from the caller via a telephone network or the like, weather, news, leisure information and the like. Is transmitted as message information of each paging call signal for each individual ID or group ID.

On the other hand, when each pager terminal receives various paging call signals in the service area,
The paging call signal includes its own individual ID and group I
Whether or not D is included is identified, and only when D is included, a warning sound or vibration is output or a message or the like can be notified according to the paging call signal. Whether or not the terminal is receivable and located in the service area of the contract range is notified by a method such as displaying an antenna mark or the like on a display unit.

[0005]

As described above, in the conventional paging system, a message or various service information received via a telephone network or the like can be transmitted to each pager terminal located in the service area. However, since the service area is a wide area of, for example, a prefecture unit, it is not possible to obtain service information closely related to a narrower area. This means that, for example, when a disaster such as an earthquake occurs, information on evacuation sites that differ depending on the narrow area cannot be transmitted limited to the narrow area. Therefore, in such a case, each pager terminal (owner) accurately extracts only urgent and important information relating to itself from among various flooding information publicized for a wide area. in fact,
Impossible.

Further, in the conventional system, in order to cope with a narrow area, enormous capital investment such as addition of a radio base station is required, which is practically impossible.
Furthermore, even if it became possible to handle narrow areas,
For example, when a disaster such as the above-mentioned earthquake occurs, a pager terminal (owner) that has entered the narrow area from another area, even if there is publicity of important information such as an evacuation site immediately before entry. However, the important information cannot be obtained (known), and the response is delayed.

The present invention provides a mobile communication terminal capable of extracting information of a paging call signal transmitted by designating an area before the mobile terminal itself enters a predetermined area, and equipment of a conventional mobile communication system. It is an object of the present invention to provide a mobile communication system capable of transmitting information in close contact with an area in a narrower area to each mobile communication terminal while using the mobile communication terminal.

[0008]

According to a first aspect of the present invention, there is provided a mobile communication terminal including a paging call including call identification information defining an identification condition including designation of a transmission area and message information corresponding to the call identification information. Receiving the signal, sequentially storing the call identification information and the corresponding message information, and receiving the GPS signal to determine its own position,
When the variable identification information corresponding to the positioning result satisfies any of the identification conditions of the stored call identification information,
It is characterized in that the message information corresponding to the call identification information is extracted as that for itself.

This mobile communication terminal receives a paging call signal and sequentially stores call identification information and corresponding message information contained therein. Further, when the variable identification information satisfies any of the identification conditions of the stored call identification information, the message information corresponding to the call identification information is extracted as that for itself. Here, since the variable identification information corresponds to its own positioning result, this mobile communication terminal determines whether or not the same call identification information satisfies the identification condition by the difference in its own position. Even when the identification result is different and the identification condition is satisfied, the call identification information that defines the identification condition and the message information to be extracted corresponding to the call identification information differ depending on the position of the own device. On the other hand, since the identification condition of the call identification information includes the designation of the transmission area, when the variable identification information corresponding to the own positioning result satisfies the condition of the transmission area designation, that is, the own positioning result Is a result corresponding to the designation of the transmission area, the variable identification information satisfies the identification condition. Therefore, if a plurality of paging paging signals including paging identification information specifying different transmission areas are transmitted, the mobile communication terminal transmits message information of different paging paging signals to itself due to the difference in its position. Can be extracted as Further, in this mobile communication terminal, the call identification information and the corresponding message information included in the received paging call signal are sequentially stored. When the own location changes, the message information corresponding to the location can be extracted based on the call identification information specifying the transmission area corresponding to the location. Therefore, according to this mobile communication terminal, regardless of the time at which each paging call signal is transmitted, message information that specifies an area corresponding to its own position as a transmission area based on the sequentially stored call identification information is provided. Can be extracted. That is, this mobile communication terminal can extract the information of the paging call signal transmitted by designating the area before entering the predetermined area after the mobile communication terminal has entered the area.

[0010] In the mobile communication terminal of claim 1, reception area information defining a reception area is generated in accordance with the positioning result, and a transmission area of the received call identification information partially overlaps with the reception area. Sometimes it is preferable to store and store the call identification information and the corresponding message information.

In this mobile communication terminal, when the transmission area and the reception area of the call identification information partially overlap, the call identification information and the corresponding message information are stored.
Call identification information and message information to be stored sequentially can be narrowed down according to the defined reception area. As a result, storage of unnecessary information can be prevented, and information to be processed, such as identification processing, can be narrowed. Therefore, processing speed can be improved, and a storage area and the like can be saved. Further, in this case, the reception area is defined according to the positioning result, so that the reception area changes due to the movement of the user, that is, the change in the position of the user. By this means, this mobile communication terminal can secure a reception area for receiving necessary information in advance even if it moves (even if its own position changes), and as a result, it becomes necessary when it moves further thereafter. , That is, message information in which an area corresponding to the own position after the movement is designated as a transmission area, and can be extracted after the movement.

[0012] In the mobile communication terminal according to the second aspect, it is preferable that the reception area information includes a deviation value defining the reception area when its own positioning position is set as an origin.

In this mobile communication terminal, the reception area information includes a deviation value that defines the reception area when its own positioning position is set as the origin. That is, the reception area is defined by the deviation value. In this case, the origin (for example, East longitude 1
39 ° 30 ′, 36 ° 40 ′ north latitude, etc.), as well as defining the distance (length) in each direction as (eg, 4800 m in the east direction, 1200 m in the west direction, etc.) Specify the range of length unit (-500m to +
350 m, -7500 m to +5000 m in the north latitude direction, or a unit of latitude and longitude (for example, -5'30.5500 "to + 2'20.4000" in the east longitude, -3'45.3030 in the north latitude direction). "~ + 6'50.600
0 "). In the above case, the length of east and west is the length of the upper and lower sides of the rectangle, and the length of north and south is the length of the right and left sides of the rectangle. The reception area may be defined as a rectangular area, or the reception area may be an elliptical area in which one of east, west, and north and south is the major axis and the other is the minor axis. In addition to the east-west and north-south directions, taking into account the direction of travel (movement), rectangular or elliptical areas with long sides or long axes parallel to the direction of travel and short sides or short axes perpendicular to the direction of travel. You can also
There is a limit to the transmission capacity of the source of the paging call signal, so that the other directions can receive within the limit,
Regulations in only one to three directions from the origin (for example, east longitude-
5'30.5500 "-only one direction: other directions up to the limit) Also, a circular reception area with an origin at the center and a deviation value as a radius (for example, 3000 m) is defined. You can also.

[0014] In the mobile communication terminal according to claim 2, it is preferable that the reception area information includes a lower limit value and / or an upper limit value of the position information of the reception area.

In this mobile communication terminal, the reception area information includes the lower limit value and / or the upper limit value of the position information of the reception area. That is, the reception area is defined by the lower limit value and / or the upper limit value of the position information. In this case, for example, the east longitude (E) 139 ° 30'30.8500 ″ to 1
39 ° 30'40.0000 ”, north latitude (N) 36 ° 2
5'25.9000 "-36 ° 25'30.3000"
It is defined as follows. Also in this case, for the same reason as in claim 3, only the lower limit or only the upper limit may be defined. Similarly, it may be rectangular or elliptical (including circular), or may be tilted in consideration of the moving direction.

[0016] In the mobile communication terminal according to the second aspect, it is preferable that the reception area information includes position information hierarchically expressing the reception area.

In this mobile communication terminal, the reception area information includes position information hierarchically representing the reception area. That is, the reception area is defined by the hierarchically expressed position information. For example, in the case of a hierarchical regulation such as D-E, Street F, C Town B, City A, A, the reception area is C Town D, City A, B City.
Chome (the entire area of D-chome regardless of the street address)
May be defined as in the entire town, or the C & G town in the B city in A prefecture (the whole town of C town and G town), and the C to H town in the A prefecture B town (including the town between the C town and the H town). It may be defined as follows. Of course, it is also possible to define a wider area such as A prefecture BI city or A prefecture J city. Therefore, in this mobile communication terminal, by devising a hierarchical definition method of the reception area, the reception area can be defined by expressions more closely related to life and intuitive expressions.

In the mobile communication terminal according to any one of claims 2 to 5, it is preferable that the reception area is defined as an area that can move within a predetermined time from its latest positioning position.

In this mobile communication terminal, the reception area is defined as an area that can move within a predetermined time from its latest positioning position. That is, the reception area is narrowed to a range in which the reception area can move within the predetermined time. In general, the importance of information and the adaptability of its contents to the current situation change over time, so depending on the time elapsed from the time of transmission of the information, not only will the information become useless, but also the current status It can be an obstacle. The same can be said for, for example, not only emergency information at the time of disaster occurrence but also daily service information such as a weather forecast. For this reason, this mobile communication terminal defines its reception area as an area that can be moved within a predetermined time from its latest positioning position, and ignores information outside the reception area. And this gives
The call identification information and the message information to be sequentially stored can be further narrowed. As a result, unnecessary information can be further prevented from being stored and information to be processed can be narrowed, so that the processing speed can be improved and the storage area can be saved.

[0020] In the mobile communication terminal according to claim 6, it is preferable that the predetermined time is changed based on the information amount of the call identification information and / or the message information sequentially stored in a unit time.

In this mobile communication terminal, the predetermined time for defining the reception area is changed based on the information amount of the call identification information and / or the message information sequentially stored in the unit time. For example, in information on a position (area) reached by one hour later and information on a position (area) reached by 30 minutes later, the latter is usually more urgent and important information for oneself. .
In other words, the amount of information that can be stored in a mobile communication terminal is naturally limited, so when the amount of information received within a unit time is large, it is better to give priority to information in an area that will arrive in the near future. Often good. For this reason, in this mobile communication terminal, the size of the reception area is changed by changing the predetermined time based on the information amount of the information sequentially stored in the unit time, whereby the higher priority information is obtained. Is easy to remember. For example, when the amount of information is large, the mobile communication terminal shortens the predetermined time, that is, reduces the size of the reception area. As a result, it is possible to prevent a situation in which the storage capacity or the like becomes insufficient due to the storage of the lower priority information and the higher priority information cannot be stored. When the amount of information is small, the size of the reception area can be expanded so that a wider range of information can be stored (information can be obtained).

In the mobile communication terminal according to claim 6 or 7, the call identification information and the corresponding message information are stored for the predetermined time from the time of reception.
preferable.

In this mobile communication terminal, call identification information and message information are stored for a predetermined time and used for identification processing and extraction based on variable identification information. As described in claim 6 or 7, in this mobile communication terminal, the reception area is defined as an area that can be moved within a predetermined time from its latest positioning position. The call identification information and the corresponding message information having the area on the route that has passed as the transmission area are used for identification processing and extraction at the time of the passage, and become used information after a predetermined time. Conversely, the call identification information and the corresponding message information that have not been used in the identification processing within the predetermined time are unnecessary information as described in claim 6, and need not be stored. In other words, the stored call identification information and the corresponding message information become unnecessary information after a predetermined time has elapsed from the time of reception, so that this mobile communication terminal stores the information for a predetermined time. , Saving storage capacity. The information after the elapse of the predetermined time may be positively deleted, or may be simply left as it is to be deleted by overwriting the next information.

In the mobile communication terminal according to any one of claims 2 to 8, the own moving speed and / or moving direction are further obtained from the received GPS signal, and the own positioning position and the moving speed and / or moving direction are obtained. It is preferable to define the reception area based on

This mobile communication terminal further obtains its own moving speed and / or moving direction from the received GPS signal. For example, when the moving speed is obtained, it is possible to estimate the distance between the user's own position at an arbitrary time in the future and the current user's own position, so that it is easy to define the reception area size and the like for obtaining necessary information. In addition, when the moving direction is obtained, the information of the moving direction is more likely to be more important. Therefore, it is possible to devise measures such as defining a reception area having a large size in the direction. Therefore, in this mobile communication terminal, a reception area can be easily and appropriately defined based on its own positioning position, moving speed, and / or moving direction.

In the mobile communication terminal according to the ninth aspect, it is preferable that the moving speed and / or the moving direction is obtained from Doppler information of the GPS signal.

As information obtained from the GPS signal, not only its own position at that time but also the instantaneous speed and traveling direction can be obtained from Doppler information transmitted from a satellite. The moving speed and / or the moving direction can be easily obtained from the Doppler information of the GPS signal.

In the mobile communication terminal according to the ninth aspect, a plurality of pieces of positioning information generated from positioning results at different times are stored, and the moving speed and / or the moving direction are obtained from the plurality of pieces of positioning information. ,preferable.

In this mobile communication terminal, a plurality of pieces of positioning information generated from positioning results at different times are stored. For example, a moving speed is obtained from a difference (distance) between the time difference and the position, or a position determined previously is determined. It is possible to easily determine the moving direction from the direction to the position measured later.

[0030] In the mobile communication terminal according to any one of claims 1 to 11, it is preferable that the variable identification information includes positioning information generated according to the latest positioning result.

In this mobile communication terminal, the variable identification information is
Since it is configured to include the positioning information generated according to the latest positioning result, the variable identification information changes according to the positioning result. That is, the information becomes information corresponding to the own positioning result, and the identification result is easily changed by the difference in the own position at that time. Also, when the identification condition is satisfied, it is easy to identify the call identification information that defines the identification condition including the designation of the transmission area, by the difference in own position, that is, by the positioning information included in the variable identification information, and , It becomes easier to extract the corresponding message information.

A mobile communication terminal according to a thirteenth aspect receives a paging call signal including call identification information defining an identification condition including a designation of a transmission area and message information corresponding to the call identification information, and outputs a GPS signal. Receiving and locating the own position, defining a reception area including the own position, and when the reception area and a part of the transmission area of the call identification information overlap, the reception area corresponds to the call identification information. A mobile communication terminal for extracting message information as one for itself, comprising a receiving area size changing means for arbitrarily changing the size of the receiving area.

In this mobile communication terminal, a reception area including its own position is defined, and when the reception area and a part of the transmission area of the call identification information overlap, the message information corresponding to the call identification information is transmitted to the mobile communication terminal. , And the size of the reception area can be changed. Therefore, by receiving a paging call signal specifying a transmission area, it is possible to extract information specifying an arbitrary area. Thereby, the size of the receiving area can be changed on the terminal side from the wide area to the narrow area as required, and as a result, for example, information specific to the destination area can be extracted (known) in advance. In this case, the receiving area size changing means operates the four-directional arrow keys and the size increasing / decreasing keys while looking at a screen displaying the size, for example, to increase or decrease the size in four directions with its own position as the origin. It is possible with such a simple configuration.

A mobile communication system according to a fourteenth aspect corresponds to the mobile communication terminal according to any one of the first to thirteenth aspects, different call identification information of a plurality of call identification signals, and corresponding call identification information. A paging communication network for transmitting a plurality of paging call signals including message information, wherein the plurality of call identification information includes call identification information defining an identification condition including designation of a transmission area. I do.

In this mobile communication system, the paging communication network transmits a plurality of paging call signals including different call identification information and message information corresponding to the call identification information. Further, in this mobile communication system, the call identification information defining the identification condition including the designation of the transmission area is included as a candidate of the call identification information of the paging call signal to be transmitted. In other words, as described above in claim 1 and the like, if a plurality of paging call signals including call identification information designating different transmission areas are transmitted, each mobile communication terminal has a different paging call depending on its own position. The message information of the signal can be extracted as that for itself. Further, each mobile communication terminal sequentially stores the call identification information and the corresponding message information included in the received paging call signal, so that when the position changes due to movement, the call specifying the transmission area corresponding to the position is made. The message information corresponding to the identification information is extracted based on the identification information. For this reason, the paging communication network
If a paging call signal including message information is transmitted by designating a transmission area, even if each paging signal is transmitted before each mobile communication terminal enters the area, each mobile communication terminal enters the area. Later, message information for the area can be extracted. Therefore, in this mobile communication system, each mobile communication terminal uses a mobile communication terminal capable of extracting the information of the paging call signal transmitted by designating the area before the mobile communication terminal enters the predetermined area. In addition to this, it is possible to transmit information in close contact with an area in a narrower area, and to exert the function of the mobile communication terminal according to the above-described claims. On the other hand, the configuration of the above mobile communication system differs from the conventional mobile communication system only in that the configuration of each mobile communication terminal differs from that of the conventional mobile communication system only in that a paging call signal for specifying a transmission area is transmitted. The conventional paging communication network can be used as it is simply by including the information for designating. That is, since no special investment is required for the facilities and the like, the facilities and the like of the conventional mobile communication system can be used.

[0036] In the mobile communication system according to claim 14,
It is preferable that the call identification information for specifying the transmission area includes a lower limit value and / or an upper limit value of the position information of the transmission area to be specified.

In this mobile communication system, the call identification information for designating the transmission area includes the lower limit value and / or the upper limit value of the location information of the designated area. This allows, for example,
An area such as east longitude a ° to east longitude b ° and north latitude c ° to north latitude d ° can be designated. In this case, east longitude a ° (lower limit of longitude), east longitude b ° (upper limit of longitude), north latitude c °
By designating at least one of (the lower limit of latitude) and the latitude d ° (upper limit of latitude), it is possible to identify the designated area and the undesignated area in the service area. In other words, the mobile communication terminal determines from the lower limit and upper limit
The designated area can be easily limited. Of course, as in the case of the receiving area of the third and fourth aspects, it may be rectangular or elliptical (including a circle), or may be inclined in consideration of the relationship with the service area.

[0038] In the mobile communication system according to claim 14,
It is preferable that the call identification information specifying the transmission area includes a deviation value from a specified origin.

In this mobile communication system, the call identification information for designating the transmission area is transmitted to the specified origin (for example, 13
9 ° 50 ′, 36 ° 00 ′ north latitude, etc.) (for example, a deviation in the longitudinal direction: −7750 m, etc.), so that the mobile communication terminal can easily limit the designated area therefrom. The method based on the origin and the deviation value is described in 2 of Tokyo.
Since it is used in a detailed map of the three wards, it becomes more familiar. In this case, the specified value of the origin may be further included in the call identification information, or may be omitted (implied) as fixed at the origin and designated by only the deviation value. Of course, as in the case of the fifteenth aspect, the shape may be a rectangle, an ellipse (including a circle), or may be inclined.

[0040] In the mobile communication system according to claim 14,
It is preferable that the call identification information for specifying the transmission area includes position information hierarchically expressing the area to be specified.

In this mobile communication system, the call identification information for designating the transmission area includes location information (for example, prefecture identification information, city (or ward) identification information, town (or village) identification, which hierarchically expresses the area to be designated. (Location information in which information and the like are arranged in order), so that the mobile communication terminal can easily limit the designated area therefrom. Also, in this case, if the hierarchical expression is devised, the hierarchical designation is made by the everyday expression that is more closely related to life (for example, as described above).

[0042] In the mobile communication system according to any one of claims 14 to 17, the plurality of pieces of call identification information include individual identification information as call identification information designating each mobile communication terminal, and / or a plurality of each of the plurality of pieces of call identification information. It is preferable that the information further includes group identification information as call identification information for specifying each group of mobile communication terminals.

In this mobile communication system, as candidates for paging identification information included in a paging paging signal to be transmitted,
Since the same individual identification information and group identification information as those in the related art are included, not only transmission area designation but also individual designation and group designation services can be performed as before.

In the mobile communication system according to any one of claims 14 to 18, the paging call signal is
Preferably, the transmission is based on the CSAG signaling or FLEX-TD signaling or a mixture thereof.

In this mobile communication system, the paging call signal is transmitted by POCSAG signal system or FLEX-TD.
Since transmission is performed based on a signaling system or a mixed system thereof, it is possible to cope with a standardization trend of a mobile communication system.

In the mobile communication system according to any one of claims 14 to 19, the paging communication network connects a radio base station that transmits the paging call signal, the radio base station and the telephone network, and performs various operations. It is preferable to have a control center for performing information processing.

The configuration of the above paging communication network is the same as that of the currently operating paging communication network. That is, this mobile communication system can be easily constructed using an existing mobile communication system and the like, and thereby, the construction and operation costs can be reduced. Further, the paging communication network includes information from a caller and various service information received via the telephone network as message information in a paging call signal and transmits the message to the mobile communication terminal. Therefore, in this mobile communication system, services that are close to the area in the narrow area can be provided for each of the narrow areas while using existing facilities and the like as they are.

The mobile communication system according to any one of claims 14 to 20, wherein the paging communication network is the G
The mobile communication terminal having the differential correction information of the PS signal and including the differential correction information in the paging call signal, and transmitting the mobile communication terminal, based on the differential correction information, correcting the positioning information of its own position. Is preferred.

[0049] In this mobile communication system, the paging communication network has the differential correction information of the GPS signal, and transmits it by including it in the paging call signal. Therefore, the mobile communication terminal performs the following processing based on the differential correction information. You can correct your own positioning results. That is,
Adopting the differential GPS (DGPS) positioning method enables more accurate position detection.

[0050]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A mobile communication terminal and a mobile communication system according to an embodiment of the present invention will be described below with reference to the accompanying drawings. In the present embodiment, a pager terminal and a paging system using the same will be described as an example. This paging system utilizes the facilities and the like of a currently operating paging system, and uses a GPS (Glob) as a pager terminal.
al Positioning System) A service that can determine the position of the user by receiving the signal and extract the message information of the paging call signal that differs according to the difference in the user's position. Is what makes it possible.

As shown in FIG. 1, the paging system 1 includes a paging communication network 2 for transmitting a digital paging call signal 230 including call identification information (call ID) to a pager terminal 3 constituting a mobile unit. And a communication network of a caller connected to the paging communication network 2 (telephone network or own communication network: hereinafter, abbreviated as "telephone network").
4.

The pager terminal 3 receives the paging call signal 2
30 and when its own comparison identification information (comparison ID) satisfies the identification condition specified in the call ID, the received paging call signal 230 is identified as a call signal for itself, and the paging A process corresponding to the call signal 230 is performed. This pager terminal 3 has a plurality (three)
Can receive the GPS signal 500 from the GPS satellite 5 to determine its own position. As a call ID for calling the pager terminal 3, conventional individual identification information (individual ID) or group identification information ( In addition to the group ID), there is area identification information (area ID), which will be described later.

The paging communication network 2 includes, as message information, information received via a telephone network 4 from a calling source such as a telephone 41 or a personal computer 42, and various service information, as message information, in a paging call signal 230. 3 is transmitted. Further, the paging communication network 2 has a radio base station 23 that transmits a paging call signal 230, and a control center 20 that connects the radio base station 23 and the telephone network 4 and performs various information processing. I have. Further, as shown in FIG. 2, the service area of the paging communication network 2 is constituted by the transmittable area of each of the radio base stations 23a, 23b, and 23c.
I am in charge of about 20km.

The configuration of the paging communication network 2 is the same as that of the currently operating paging communication network. That is, the paging system 1 can be easily constructed using an existing paging system or the like, and thereby, the construction and operation costs can be reduced. Then, while using these facilities and the like as they are, it becomes possible to provide services close to the area in the narrow area for each of the narrow areas SAa1 to SAa4 as conceptually shown in FIG. Is what you do.

Next, in the paging system 1, POCSAG (Po
st Office Code Standarization Advisory Group). Since this POCSAG signal system is also adopted in the existing paging system, the existing system can be used also in this point. Hereinafter, an example of a data format mainly used in the present invention will be described.

As is well known, the POCSAG signal is the signal shown in FIG.
It consists of each element shown in. First, a queue PQ, which is a unit of one call, is composed of repetitions of 1010... For notifying each pager terminal 3 that there is a call signal, as shown in FIGS. Bit preamble PPr and 1st of each 544 bits
It is composed of batches PBt1 to PBt40 up to 40th.

Each batch, for example, the first batch PBt1
Is a 32-bit synchronization codeword PSc and 64-bit 8 bits, as shown in FIGS.
It is composed of two frames PF0 to PF7. The service company allocates a reception address to each paging subscriber. In the POCSAG signal, the reception addresses are divided into eight groups determined by the lower three bits, and the signal for each subscriber to the pager terminal 3 is transmitted to each batch. 8 frames PF0 to PF7 of the batch PBt1, for example.
Stored in the frame corresponding to the received address.
For example, when the lower 3 bits of the received address are [0, 0, 0], the data is stored in the frame PF0, and when the received address is [1, 1, 1], the data is stored in the frame PF7.

Each frame (for example, frame PF0)
Two slots of 32 bits each (PS00, PS01)
Consists of In addition, each slot (for example, PS00)
Is a 1-bit address / message flag (PF0F) and a 20-bit address / message flag as shown in FIG.
Message information (PS0W), 10-bit check code (PS0C), 1-bit parity bit (PS0W)
P). Here, since substantial information is transmitted and received as an address / message flag (PF0F) and address / message information (PS0W), only such information will be described below.

Information to each pager terminal 3 is stored and transmitted in two slots of each frame in each batch, and this is schematically shown in FIG. FIG. 9A shows information in two slots of one batch, and includes a 1-bit address / message flag PF0F and a 20-bit address / message information PS of the first slot.
0W, 1-bit address / message flag PF1F of the next slot, and 20-bit address / message information PS1W are shown side by side.

When the codeword of each slot is used for transmitting address information, the address / message flag is set to PF0F = 0 as shown in the batch PBt1 of FIG.
8-bit address data AD (0:18) and 2-bit function bits FB (0: 2) follow. Subsequently, when it is desired to transmit the message information, in the subsequent slot, the address / message flag PF0F = 1 is set as the message code word, and the message information is transmitted by the 20-bit message data MD0.

Further, when the message information continues,
In the subsequent batch PBt2, message data MD1, MD2 are transmitted as message code words,
Hereinafter, similarly, message data MD3, MD4,... Are transmitted in batches PBt3, PBt4,.
When the codeword of the slot is a predetermined idle codeword or the next address codeword,
A series of information transmission of one paging signal ends.

Next, of the above information, only the address information and the message information are arranged, as shown in FIG. 5 (a). Here, two bits of the function bits FB (0: 2) in the case of the address code word are used for identification when there are a plurality of types of call IDs to each pager terminal.

In this embodiment, the function bit F
B (0: 2) = call [0,0] by individual ID,
FB (0: 2) = [0,1] is used for calling by group ID, and FB (0: 2) = [1,0] is used for calling by area ID. The function bits FB (0: 2) = [1, 1] are for future expansion and are undefined.

In the case of the paging call signal 230 based on the individual ID or the group ID, as shown in FIGS.
(0:18), and message information is transmitted and received as subsequent message data MD0, MD1,.... As the message information, five characters (one character / 4 bits) can be transmitted and received for each slot (each codeword).

Next, in the case of the paging call signal 230 based on the area ID, as shown in FIG. 6D, the address data AD, the message data MD0 and the like are used as a series of information, and as shown in FIG. Send and receive. In addition, for all pager terminals 3 located in the designated area,
When calling by the same area ID is desired, a method of storing the same information in eight frames PF0 to PF7 may be used.

For example, FIG. 6A shows the east longitude (E) 139.
° 50'30.8500 "-139 ° 50'40.00
00 ”, north latitude (N) 35 ° 25'25.9000”-
An example is shown in which a transmission area is designated by 35 ° 25'30.3000 ", and message information" Aiokakikuke ... "is transmitted to the pager terminal 3 in the area.

In the above case, when the range (length) of the east longitude (E) is the length of the upper side and the lower side of the rectangle, and the range (length) of the north latitude (N) is the length of the right side and the left side of the rectangle. of,
The rectangular area may be defined as a transmission area, or an elliptical area in which one of the ranges (length) of the east longitude (E) or the north latitude (N) is the long axis and the other is the short axis may be used. A method of defining the transmission area may be used. This means
The same applies to the case of FIG. 6B described later.

In the present embodiment, the following description will be made assuming that each of the circular or elliptical areas in the images shown in FIGS. 2 and 8 (described later) is defined. In each figure, a narrow service area, that is, the above-described transmission area is indicated as a transmission area SAxx (SAa1 to SAa6).

Next, with respect to the pager terminal 3 which receives the paging call signal 230 specifying the area as described above,
This will be described with reference to FIGS.

As shown in FIG. 7, the pager terminal 3 basically includes an information processing section 30 for performing various information processing,
GPS receiver 31 for receiving PS signal 500, and paging receiver 32 for receiving paging call signal 230
And a power supply circuit 34 for supplying power from the battery 341 and the like to each unit in the pager terminal 3 and a notification circuit 35 for outputting various report signals (messages, warning sounds, vibrations) 303.

The information processing section 30 has a built-in ROM (not shown) containing a control program and the like, and performs various information processing in the pager terminal 3 according to the control program.
The PU 301 is used as a work area at the time of various information processing, and is used for positioning information, reception area information, call ID,
RAM 30 for storing and storing message information and the like
And 2. The RAM 302 is also backed up by a backup circuit (not shown) even when the power is turned off. Note that an EEPROM or the like may be used instead of the RAM 302 to omit the backup circuit.

The GPS receiver 31 converts the three GPS signals 500 received from the three GPS satellites 5 by the GPS receiving antenna 314 from the bandpass filter (BPF) 3.
13 and a low-noise amplifier (LNA) 312 to a high-frequency circuit (RF) 311 and a GPS signal 500
For example, a C / A (Coarse / Acquisition) code is decoded.

The positioning information processing circuit 31 of the GPS receiving section 31
0 is basically composed of a logic circuit or the like, receives the decoded code output from the RF 311 and obtains each pseudo distance from the three GPS satellites 5 in cooperation with the CPU 301 to obtain two-dimensional positioning information, for example, The positioning information of latitude and longitude is generated and stored in the RAM 302.

Incidentally, based on the four GPS signals 500 from the four GPS satellites 5, more GPS signals 500 are received, for example, three-dimensional positioning information to which positioning information such as altitude is further added is obtained. It can also be configured to do so.

The RAM 302 stores, in addition to the current (current time) positioning information, positioning information based on the previous (for example, two minutes before) positioning result. Find your own moving speed and moving direction.

For example, assuming that the user of the pager terminal 3 is walking and moving, the time difference (in the above case, 2
The moving speed (4800 m / h) is determined from the difference between the minute position) and the position (distance: 160 m, for example), and the moving direction (for example, the eastward direction, the northeast direction, or the direction) from the previous positioning position to the current positioning position (direction). , And information expressed as an angle in a counterclockwise direction with true east as 0 °).

Next, the CPU 301 generates reception area information defining a reception area based on the above-described positioning information of the present time (current time), the moving speed (4800 m / h), and the moving direction (true east direction). FIG. 8 shows an image of the reception area.

For example, assuming that the position of the pager terminal 3 shown in the figure is the current (positioning) position (for example, 139 ゜ 30 'east longitude, 36'40' north latitude), it is set as the origin (center).
The area that can be moved within a predetermined time (for example, 30 minutes) at the above-mentioned moving speed (4800 m / h) has a radius (for example, 2400 m: deviation value) within the predetermined time as a reception area RA3 in FIG. It becomes a circular area like.

However, in the pager terminal 3, the element of the moving direction is further added, and the moving direction (the eastward direction in the above example) is added.
Is long (for example, 4800 m: 1 hour) and short in the other direction (1200 m to 1600 m: 15 minutes to 20 minutes).

In this case, as shown, the center is (1800 m: 2) in the moving direction (eastward) from the origin (current position).
The major axis extending east and west (equivalent to 2.5 minutes)
(Equivalent to 1 hour and 15 minutes): Elliptical reception having a major axis of 3000 m (equivalent to 37.5 minutes) and a minor axis extending from north to south (3200 m (equivalent to 40 minutes): a minor axis of 1600 m (equivalent to 20 minutes)). Area. If the moving speed and the moving direction are different, the reception area RA2 shown in FIG.

Of course, the size of each reception area is made larger (the predetermined time is set larger), and the reception area R shown in FIG.
The reception area may be defined as A4, or may be a reception area such as a rectangle that is easy to calculate instead of a circle or an ellipse as shown in FIG.

Then, the CPU 301 stores the reception area information defining the reception area (for example, RA1) in the RAM 302 in the same manner as the positioning information and the like as described above.

On the other hand, as shown in FIG. 7, the paging receiving section 32 transmits a paging call signal 230 received by the paging receiving antenna 323 to a radio frequency (RF) circuit 32.
2 and the call ID in the paging call signal 230
And message information.

The identification information processing circuit 320 of the paging information section 32 basically comprises a logic circuit or the like,
, And in cooperation with the CPU 301, identifies whether or not the received paging call signal 230 is a call signal for itself, and when the call ID is the area ID, calls the current time call. The information is stored in the RAM 302 together with the time information as an ID or message information.

First, as described above with reference to FIG.
In each slot of the paging call signal 230 of the G signal system, a 1-bit address / message flag PF
When 0F = 0, it is address code data. Therefore, the call ID of the received paging call signal 230 is set to the individual ID, group I by the function bit FB.
D or area ID is identified.

Here, when the call ID is identified as an individual ID or a group ID, that is, when the function bit FB = [0, 0] or [0, 1], the ID-R
The comparison ID for the individual ID and the group ID in the OM 321 is read out, compared with the call ID, and when they match, the next message data MD0 and the like (see FIG. 5) are stored in the RAM 30.
2 is stored. Of course, the message data MD0 is considered in consideration of the relationship between the reception processing speed and the internal information processing speed.
Etc. may be stored in advance and canceled when they do not match.

In the pager terminal 3, similar to the conventional one-way pager terminal, a liquid crystal (LCD) and a beeper (BEEPER) for outputting a report signal (message, warning sound, vibration) 303 when the paging call signal 230 is received. , A vibrator (VIBRATER), etc., the call ID is set to the individual I
When D and the group ID are identified and the ID matches the comparison ID, processing similar to that of the related art, that is, processing such as outputting a warning sound or vibration or displaying a message is performed.

On the other hand, when the call ID is identified as the area ID, that is, when the function bit FB = [1,
In the case of [1], first, the above-described reception area information is read from the RAM 302. However, unlike the case of the individual ID or the group ID described above, it is determined whether or not there is an overlapping portion between the transmission area specified by the area ID and the reception area specified by the reception area information.

For example, as shown in FIG. 8, when the reception area of the pager terminal 3 is the reception area RA1 in FIG. 8, when the received area ID specifies the transmission area SAa5 or the transmission area SAa7, There are no overlapping parts. On the other hand, when the area ID specifies the transmission area SAa6, an overlapping area (overlapping area) XA1 exists.

When there is an overlap, the CPU 30
According to 1, the message information corresponding to the area ID is stored in the RAM 302 together with the time information as a call ID or message information of the current time. However, at this point, since it has not yet been identified as being for itself, processing such as outputting a warning sound or vibration or displaying a message is not performed.

As described above, when receiving the GPS signal 500, the CPU 301 generates the positioning information, generates the moving area and the moving direction, generates the receiving area information, and receives the paging call signal 230. Then, it identifies whether the call ID is an individual ID, a group ID, or an area ID, and performs a corresponding process.

Further, when the CPU 301 stores the message information corresponding to the new (current time) call ID (area ID) together with the time information in the RAM 302 and / or receives the GPS signal, and And / or periodically (for example, every two minutes) read out the latest positioning information and use it as a comparison ID (variable ID).
It is determined whether or not the identification condition of the call ID (area ID) stored in the AM 302 is satisfied.

In this case, the area I to be identified is
D is an area ID stored a predetermined time before or after that time. For example, in the case of FIG.
Since the longest of the predetermined time of A1 is one hour in the east direction, the area ID stored from one hour before to the current time is targeted.

The above will be described from the opposite side. For example, as described above, the vehicle moves eastward, and at the current time,
Assuming that the pager terminal 3 is located in the overlapping area XA1 in FIG. 8, it means that one hour ago, the pager terminal 3 was located in the position shown in FIG. In this case, the information (area ID and message information) of the transmission area designation paging call signal 230 transmitted to the overlapping area XA1 one hour ago, that is, the information of the paging call signal 230 transmitted by designating the transmission area SAa6 Is already stored in the RAM 302 of the pager terminal 3 according to the definition of the reception area RA1 of the pager terminal 3 at that time.

That is, at the present time, the overlapping area XA
In the pager terminal 3 located at No. 1, the variable ID (positioning information) at the present time satisfies any transmission area designation of the area ID (calling ID) stored from a predetermined time (1 hour) before to the current time. If it is determined whether or not to perform, the current variable ID satisfies the condition for specifying the transmission area of the area ID received and stored one hour ago.

For this reason, if the message information corresponding to the area ID is extracted, it is located one hour ago in the transmission area SAa6 even though it was not located one hour ago in the transmission area SAa6. In the same manner as described above, the message information one hour ago can be extracted, so that processing such as outputting a corresponding warning sound or vibration or displaying a message is performed. For example, in the example of FIG. 6A, a message such as “Aioka Okikukuke ...” can be displayed.

In the above case, the pager terminal 3
Between the time before and the current time, since it has moved in the direction of the overlap area XA1 from the position shown in FIG. 8, the reception area RA1 and the transmission area SAa6 of the pager terminal 3 have partially overlapped. .

For this reason, the pager terminal 3 must also store message information corresponding to the area ID designated by the transmission area SAa6 therebetween, and at the above-mentioned current time, the transmission area of those area IDs ( SAa6)
Is also satisfied. That is, the area ID transmitted by specifying the transmission area SAa6 from one hour ago to the current time
Since the corresponding message information is also stored, those message information can also be extracted.

Therefore, although the pager terminal 3 has just entered the transmission area SAa6,
It is possible to extract information from one hour before the transmission area SAa6 is specified to the current time as if it were continuously located in the transmission area SAa6 from a time before to the current time.

In the above case, the example in which the reception area is defined as the reception area RA1 in FIG. 8 has been described. For example, if the reception area is defined as the reception area RA4, the moving direction is changed halfway and the transmission area SAa5 is changed. And transmission area SAa
7, it is needless to say that the same can be achieved by the presence of the overlap area XA45 and the overlap area XA47.

For example, as described above, when the course is changed in the direction of the transmission area SAa7 on the way, it is easy to collect information on the changed moving direction at that time (in the same direction as the reception area RA2). Since the reception area (which is slightly larger in size) is defined, the pager terminal 3 does not need a reception area of a very large size.

As described above, according to the pager terminal (mobile communication terminal) 3, each paging call signal 230
Irrespective of the time at which the message is transmitted, it is possible to extract message information in which the area corresponding to the own position after the movement is designated as the transmission area based on the sequentially stored call ID (call identification information). That is, the pager terminal 3 can extract the information of the paging call signal 230 transmitted by designating the area before entering the predetermined area before the terminal itself enters the area.

Here, the functions (actions) and effects of the above-described pager terminal 3 and the paging system 1 using the same will be summarized below.

The pager terminal 3 receives the paging call signal 230 and sequentially stores the call ID and the corresponding message information included in the signal. Also, the variable ID is
When one of the identification conditions of the stored call ID is satisfied, the message information corresponding to the call ID is extracted as the message information for the self.

Here, since the variable ID corresponds to its own positioning result, the same call I
For D, the discrimination result as to whether or not the discrimination condition is satisfied differs depending on the difference in own position, and when the discrimination condition is satisfied, the discrimination condition is defined according to the difference in own position. The call ID and the message information to be extracted corresponding to the call ID are different.

On the other hand, since the identification condition of the call ID includes the designation of the transmission area, when the variable ID corresponding to the own positioning result satisfies the condition of the designation of the transmission area, When the result becomes a result corresponding to the designation of the transmission area, the variable ID satisfies the identification condition.

For example, in FIG. 2, the radio base station 23a
, A paging call signal 230 using the area ID specifying the transmission area SAa1 as the call ID, and a paging call signal 230 specifying the transmission area SAa2 in the same manner.
And a paging call signal 230 specifying the transmission area SAa3 and a paging call signal 230 specifying the transmission area SAa4, the pager terminals 3 in each area are different from the pager terminals 3 in the other areas. Processing corresponding to a different paging call signal 230 (for example, extraction of message information) is performed.

Therefore, a plurality of paging call signals 23 each including a call ID designating a different transmission area.
0, the pager terminal 3 has a different paging call signal 23 due to the difference in its position.
The message information of 0 can be extracted as that for itself.

For this reason, in the paging system 1 (mobile communication system), a plurality of predetermined transmission areas similar to the above-mentioned transmission area SAa1 and the like are set in the service area SAa and the like, and paging including a call ID specifying the transmission area is performed. When the paging signal 230 is transmitted, a specific paging paging signal 2 is transmitted only to the pager terminal 3 located in the area.
It becomes 30 and service information etc. closely related to the area in the designated area can be transmitted as message information.

Therefore, in this paging system 1, while using the facilities and the like of the conventional paging system,
Alternatively, by using the pager terminal 3 that can extract the message information of the paging call signal 230 that differs depending on its own location with the same equipment, it becomes possible to provide a service that is closer to the area in a narrower area. For example,
In addition to publishing service information such as weather and district-specific information for the transmission area SAa1 and the like, and systematically providing a communication network for home delivery, a patrol communication network, and a fire communication network via the telephone network 4 and the like. It can also be used for communication of evacuation sites and evacuation routes in emergency situations such as disasters.

In this case, for example, FIG.
By changing the size (size) of the specified transmission area by expanding or narrowing the range of longitude and latitude of the service, the service unit can be changed from the narrow area to the wide area without changing the equipment etc. Area size can be changed.

Further, this makes it possible to provide services in a narrow area and a wide area irrespective of the area in charge of the radio base station 23. For example, each radio base station 23 shown in FIG.
As long as the transmission capability of “a” or the like is sufficiently large, a wide area per prefecture may be used. That is, regardless of the configuration of the existing paging system, the paging call signal 23
As long as 0 can be transmitted, it can be used as it is. Furthermore, as a result, for example, when it is desired to reduce the number of the wireless base stations 23 due to the maintenance cost and the like, the number of the wireless base stations 23 is reduced, and the remaining wireless base stations 23 are reduced.
You can more freely set the assigned area, such as by switching the assigned area to a wider area.

In the past, since the frequency used was different for each area, it was necessary for each pager terminal 3 to change the reception frequency by manual or automatic scanning when exceeding the boundary of the area. In the case of (1), each pager terminal 3 identifies the paging call signal 230 according to its own position at that time, so that there is no need to change the reception frequency. Therefore, it is possible to prevent the use frequency from increasing, and to make the reception frequencies from the radio base station 23a and the radio base station 23b the same, for example, in the transmission area SAa4 in FIG. 2 without changing the reception frequency. It is also possible to change it to be possible.

Further, pager terminal 3 sequentially stores the call ID and the corresponding message information included in received paging call signal 230, so that the call IDs specifying different transmission areas are stored, respectively.
When the position of the user changes due to the movement of the user, message information corresponding to the position can be extracted based on a call ID that specifies a transmission area corresponding to the position.

Therefore, according to this pager terminal 3, the area corresponding to its own position is designated as the transmission area based on the sequentially stored call IDs regardless of the time at which each paging call signal 230 was transmitted. Extract message information. That is, in this pager terminal 3, the paging call signal 2 transmitted by designating the transmission area before the terminal itself enters the predetermined transmission area.
Thirty pieces of information can be extracted after entering the transmission area.

Further, in the pager terminal 3, the call ID
When a part of the transmission area (for example, SAa6) and the reception area (for example, RA1) partially overlap (when there is an overlap area XA1), the call ID and the corresponding message information are stored. Call IDs and message information to be executed can be narrowed down. As a result, storage of extra information can be prevented, and information to be processed such as identification processing can be narrowed, so that processing speed can be improved,
Storage area and the like can be saved.

In this case, since the receiving area is defined according to the positioning result, the receiving area also changes (moves) by its own movement, that is, by its own position change. As a result, the pager terminal 3 can secure a reception area for receiving necessary information in advance even if it moves (even if its own position changes). , That is, message information in which an area corresponding to the own position after the movement is designated as a transmission area, and can be extracted after entering the area.

In the pager terminal 3, the reception area information includes a deviation value defining the reception area when its own positioning position is set as the origin. That is, the reception area is defined by the deviation value.

In this case, the origin (for example, 139 ° 3
0 ′, 36 ° 40 ′ north latitude, etc., as distances (lengths) in each direction (for example, 48
00m, west 1200m, etc.), and the range of length units (-500m to +350 east)
m, north latitude direction −7500 m to +5000 m, etc.) or a unit of latitude and longitude (for example, -5 ′ east longitude direction).
30.5500 "~ + 2'20.4000", north latitude-3'45.3030 "~ + 6'50.6000")
It can also be specified by, for example.

In the above case, the length of the east and west is the length of the upper side and the lower side of the rectangle, and the length of the north and south is the length of the right side and the left side of the rectangle, as in the above-described transmission area. The rectangular area may be defined as the receiving area, or the elliptical area with the length of one of the east, west or north and south as the major axis and the other as the minor axis may be defined as the receiving area. . In addition to the east-west and north-south directions, taking into account the direction of travel (movement), rectangular or elliptical areas with long sides or long axes parallel to the direction of travel and short sides or short axes perpendicular to the direction of travel. It is good.

That is, the reception area RA1 described in FIG.
The direction of travel was east, so the east-west was the major axis, and the north-south was the elliptical area with the minor axis.For example, if the travel direction was northeast, the major axis was from southwest to northeast, and the northwest to southeast. Is a short axis elliptical shape, and its center (the intersection of the long axis and the short axis) may be shifted northeast on the long axis from the current position (self-located position at the current time).

Also, since there is a limit to the transmission capability of the transmission source of the paging call signal 230, in other directions, it is required to be 1 to 3 from the origin (current position) so as to be able to receive within the limit.
Only the direction (for example, east longitude -5'30.550)
It is also possible to define a circular reception area with the origin at the center and a deviation value of a radius (for example, 3000 m) with the origin at the center.

In the pager terminal 3, the reception area (for example, the reception area RA1 in FIG. 8) is defined as an area that can be moved within a predetermined time from its own latest positioning position. That is, the reception area is narrowed to a range in which the reception area can move within the predetermined time.

In general, the importance of information and the adaptability of its contents to the current state change with the passage of time. Therefore, depending on the elapsed time from the information transmission time, the information is not only useless, but rather is not useful. It may be a hindrance to understanding the current situation. The same can be said for, for example, not only emergency information at the time of disaster occurrence but also daily service information such as a weather forecast.

For this reason, the pager terminal 3 (mobile communication terminal) defines its reception area as an area that can be moved within a predetermined time from its latest positioning position, and ignores information outside the reception area. I have to. As a result, the call ID and message information to be stored sequentially can be further narrowed. As a result, the storage of extra information can be prevented and the information to be processed can be narrowed, thereby improving the processing speed and saving the storage area. Can be achieved.

In the pager terminal 3, the call ID and the message information are stored for a predetermined time (one hour in the above example), and are used for identification processing and extraction based on the variable ID. As described above, the pager terminal 3 defines the reception area (for example, the reception area RA1) as an area that can be moved within a predetermined time from its latest positioning position. The call ID and the corresponding message information having the area on the route as the transmission area are used for identification processing and extraction at the time of passing, and become used information after a predetermined time.

For example, in the above example, the overlapping area XA1
Existed, the transmission area SAa at the position shown in FIG.
6 stores the area ID (calling ID) and the message information which designates the area I. When the mobile station enters the transmission area SAa6 (after a predetermined time: one hour in the above example), the area I
Since the condition for specifying the transmission area of D is satisfied, the corresponding message information is extracted and used, and the area ID and the message information are used information.

On the other hand, the call ID and the corresponding message information that have not been used in the identification processing within the predetermined time have passed the predetermined elapsed time, and are information that is unnecessary or hinders grasp of the current state. You don't have to.

That is, the stored call ID and the corresponding message information become unnecessary information after a predetermined time has passed from the time of reception, so that the pager terminal 3 stores the information for a predetermined time. Thereby, the storage capacity can be saved. The information after the elapse of the predetermined time may be positively deleted, or may be simply left as it is to be deleted by overwriting the next information.

The pager terminal 3 receives the received GP.
The own moving speed and / or moving direction are further obtained from the S signal.

For example, as shown in FIG. 8, as described in the reception area RA1, the moving speed (for example, in the above-described example, 4 h / h).
800m), the own position (position of the overlapping area XA1) at an arbitrary time in the future (one hour later)
And the current distance (4800 m) from the own location, it is easy to define the reception area size and the like for obtaining necessary information.

When the moving direction (directly east in the above example) is obtained, the information of the moving direction is more likely to be more important.
A method such as defining A1) can be performed.

Therefore, the pager terminal 3 can easily and appropriately define the reception area based on its own positioning position, moving speed and / or moving direction.

The pager terminal 3 stores a plurality of (for example, the previous (two minutes before) and the current (current time) two) pieces of positioning information generated from the positioning results at different times. , For example, the time difference (2 in the above example)
The moving speed (4800 m / h) is obtained from the difference between the minute) and the position (distance: 160 m in the above example), or the moving direction (the moving direction (4800 m / h)) depends on the direction from the position measured before (previous) to the position measured after (current). Or just east).

Further, the configuration of the pager terminal 3 of FIG. 7 can be configured by simply adding the function of processing the GPS signal 500 received by the GPS receiver 31 to the conventional pager terminal. Easily available within. Also, the paging system 1 has a call ID
Is encoded information, as in the conventional paging system, it is easy to make the information compact,
The paging call signal 230 including this is a signal resistant to noise.

The contents described above are the basic types of the pager terminal 3 and the paging system 1. However, within the scope of the present invention, the configuration and functions of the pager terminal 3 are changed, new components are added, and the like. Since various applications are possible, those application examples will be described below.

First, in the pager terminal 3, the predetermined time for defining the reception area can be changed based on the information amount of the call ID and / or the message information sequentially stored in the unit time.

For example, in FIG. 2, the transmission area SAa
2 is located in the transmission area SAa1
Assuming a case where the vehicle travels through (passes through) to the transmission area SAa4, the travel time to the transmission area SAa1 is 30 minutes,
It is assumed that one hour extends to the transmission area SAa4. In this case, 1
Information about the position (area SAa4) to which the user will arrive after time and the position (area SAa1) to reach after 30 minutes
The latter is usually the more urgent and important information for oneself.

That is, since the amount of information that can be stored in the pager terminal 3 is naturally limited, when the amount of information received within a unit time is large, information in an area that will arrive in the near future is prioritized. Is often better.

Therefore, the pager terminal 3 changes the size of the reception area by changing the predetermined time based on the information amount of the information sequentially stored in the unit time. Make it easy to memorize high-level information.

For example, in the above example, a large receiving area having a large size, ie, an overlapping area with the transmitting area SAa4, is first defined (the predetermined time is one hour at this time). In such a case, if there is too much information to be transmitted by designating the transmission area SAa4, a storage area is used to store the information, and the information transmitted later and designated by the transmission area SAa1 cannot be stored due to overcapacity. May occur.

When the amount of information is large as described above, in this pager terminal 3, the predetermined time is reduced, that is, the size of the reception area is reduced. As a result, it is possible to prevent a situation in which the storage capacity or the like becomes insufficient due to the storage of the lower priority information and the higher priority information cannot be stored. When the amount of information is small, the size of the reception area can be expanded so that a wider range of information can be stored (information can be obtained).

Next, in the pager terminal 3 of the above-described embodiment, the reception area is specified, but this is not specified.
Conversely, the entire service area can be the reception area. In this case, all the information for specifying the transmission area can be obtained, and the message information transmitted by specifying the transmission area including the position can be extracted regardless of the destination.

[0144] This concept may be further advanced so that message information can be extracted immediately after reception without moving to that position. However, in this case, for example, there is a possibility that too much information is displayed as a message, which may be complicated and troublesome, and that important information may not be grasped.

Therefore, it may be necessary to extract all information in the reception area while defining the reception area. In this case, it is convenient if the size of the reception area can be arbitrarily changed.

In the above case, the pager terminal 3 (mobile communication terminal) defines a reception area including its own position, and when a part of the reception area overlaps with the transmission area of the call ID, the page ID is set to the call ID. Since the corresponding message information can be extracted as that for itself and the size of the reception area can be changed, it is possible to extract any area specification information by receiving the paging call signal 230 specifying the transmission area.

As a result, the size of the reception area can be changed on the terminal side from the wide area to the narrow area as necessary.
For example, information specific to the destination area can be extracted (known) in advance.

In this case, the receiving area size changing means includes, for example, four direction arrow keys and a size increasing / decreasing key while looking at a size display screen for increasing / decreasing the size in four directions with its own position as the origin. It is possible with a simple configuration such as operation of.

Of course, the pager terminal 3 of the above-described embodiment can also be provided with this kind of receiving area size changing means.

In the pager terminal 3 of the above-described embodiment, the moving speed and the moving direction are obtained from a plurality of pieces of positioning information. However, these may be obtained from the Doppler information of the GPS signal 500.

That is, as the information obtained from the GPS signal 500, not only its own position at that time but also the instantaneous speed and traveling direction can be obtained from the Doppler information. GPS
The moving speed and moving direction can be easily obtained from the Doppler information of the signal.

Further, in the pager terminal 3 of the above-described embodiment, the reception area information includes a deviation value when the own positioning position is set as the origin, and the reception area is defined by the deviation value. The reception area may be defined by the lower limit value and / or upper limit value of.

In this case, for example, east longitude (E) 139 ° 3
0'30.8500 "-139 ° 30'40.000
0 ", north latitude (N) 36 ° 25'25.9000" ~ 3
6 ° 25′30.3000 ″, etc. In this case, only the lower limit or only the upper limit may be specified. Similarly, a rectangle or an ellipse (including a circle) may be used. It can also be tilted in consideration of the moving direction.

Further, the position information expressed in a hierarchical manner
A reception area can be defined. For example, in the case of a hierarchical rule such as D-E, Street No. D, C Town, A Prefecture B, the receiving area is D Street, C Town B, A Prefecture (the entire area of D Street, regardless of the address), and B, C City, A Prefecture It may be defined as a town (the whole area of town C), a C & G town of the A prefecture B city (the whole area of the towns C and G), and an A prefecture B
City C to H town (the whole area including the town between C town and H town) may be defined. Of course, A prefecture B to I in a wider area
It can also be defined as a city or A to J prefecture.

Therefore, in the pager terminal 3 in this case, the reception area can be specified by a more close-to-life expression or an intuitive expression by devising a hierarchical definition method of the reception area.

Further, the definition of the transmission area can be variously changed.

For example, a call ID for designating a transmission area,
In other words, as the format of the area ID, in FIG. 6A described above, a data format that defines the lower limit and the upper limit of the two-dimensional position information is adopted. But it is good.

In the above case, if at least one of the lower limit value of longitude, the upper limit value of longitude, the lower limit value of latitude, and the upper limit value of latitude is designated, the designated area in the service area is designated. The area outside can be identified. That is, the pager terminal 3 can easily limit the designated area based on the lower limit and the upper limit of the position information. Also, as a result,
The pager terminal 3 has a variable ID corresponding to its own positioning result.
Can easily identify whether or not the conditions specified in the transmission area of the stored call ID are satisfied, and as a result, the corresponding message information can be easily extracted. Of course, as in the case of the reception area, it may be rectangular or elliptical (including a circle), or may be inclined in consideration of the relationship with the service area SAa or the like.

Also, as shown in FIG. 6B, the origins (for example, E (east longitude) 139 ° 50 ′, N (north latitude) 36 ° 0
0 '), and the range in the longitude and latitude directions is a deviation value from the origin (longitudinal range: -7750 m to -7500).
m, latitude range: -37000m to 36750m, etc.)
, The transmission area may be designated, and thereafter, message information such as "Aioka Okikukuke ..." may be continued. The method using the origin and the deviation value is described in 23 of Tokyo.
Since it is used in ward detailed maps, etc., it becomes a more familiar indication. Also, in this case, if the contract range is not very wide, it is also possible to designate the origin as fixed and use only the deviation. Of course, similarly, it may be rectangular, elliptical (including circular), or inclined.

Further, as shown in FIG. 17C, a hierarchical designation format based on everyday expressions more closely related to life may be adopted. In this case, for example, as shown in FIG.
D, City (or ward) ID, Town (or village) ID, Chome I
D, address (+ number) ID, etc., followed by the message "ABCDE
FGH ... "etc. may be continued.

In the case of calling by area ID, not only area designation but also specific conditions and the like may be determined as characteristic ID. The specific ID includes, for example, regional characteristics such as along the sea and along the mountain. If a characteristic ID based on such regional characteristics is determined, for example, when a disaster such as a tsunami or an avalanche occurs, emergency information can be transmitted to only the area related to the disaster, even if other service information is blocked. .

The service information may be used by job type, income, child age, child school, etc. These are, for example, pager subscribers who meet more specific conditions in a designated area. Alternatively, it can be used for transmitting specific service information only to the contractor. These characteristic IDs can be used as a part of the variable ID for identification as to whether or not the identification condition of the call ID is satisfied, based on contents and positioning information which are individually determined and stored in advance.

Further, even if the format of the area-specific call ID, that is, the area ID is determined in advance as described above, the conditions can be narrowed or expanded depending on the situation at that time.

For example, unconditional I such that all bits are all 1
D is determined. In the example of FIG. 6A described above, the east longitude (E) 1
39 ° 50′30.8500 ″ to 139 ° 50′40.
0000 "or the like, for example, [30.8500]
Is replaced by an unconditional ID, that is, all 1, this condition is ignored, and the designated area becomes east longitude (E) 139 ° 5
0 'to 139 ° 50' 40.0000 ", and the designated area is widened. If the entire designation of longitude is replaced with an unconditional ID, north latitude (N) 35 ° 25 '25.9000" to 35
Only the condition of 25 ° 30.3000 ″ is satisfied.

That is, in this case, even if the format of the area ID is determined as shown in FIG.
By defining the unconditional ID, a part of the identification condition can be relaxed.

The same can be done in the example shown in FIG. In FIG. 6B, the format is such that the deviation value in the latitude direction and the deviation value in the longitude direction are determined. For example, in the range of “−7750 m to −7500 m” in the longitude direction, “−7500 m” is unconditionally set. Replace with ID
The condition of only "-7750m ~" or "-7750m"
m to -7500m "with an unconditional ID,
For example, only the latitude range can be set.

If any one of the IDs in FIG. 6C is an unconditional ID (for example, if the town ID is less than or equal to 1: the town ID is [FF] hex), the conditions are similarly relaxed. The designated area spreads (the entire city). Further, for example, conversely, all 0s are negative IDs (for example, town I
If D is all 0), the condition can be narrowed (not transmitted only to the city). Further, these may be identified by whether the first bit of each ID is 0 or 1.

Therefore, in these cases, the unconditional ID for alleviating a part of the identification condition is determined, so that even if the format of the area designation call ID, that is, the area ID identification condition is determined, the narrow area is determined. From the area to the wide area, the area size as a unit of service can be easily changed.

As the call ID, a plurality of identification conditions of the same type or different types of the above-mentioned various area IDs are arranged, and whether or not they are valid in order in the characteristic ID portion and other bit information (condition setting information) is designated. Is also good. For example, in the area ID format shown in FIG. 6C, the designation of city A and the designation of city B are arranged,
If 2-bit information is included as the condition setting information, if the 2-bit condition setting information is [1, 0], only city A is used.
[0,1] for city B only, [1,1] for city A and B
Can be defined as both sides of the city. These are convenient when, for example, the number of cities to which service information is sent is large.

In addition, not only the same kind but also different kinds of identification conditions are arranged. For example, information in the form of the area ID shown in FIG. 6A is further included in the above-mentioned call ID, and the 3-bit condition setting information is [1 , 1, 0] is the same as above, and [1, 1,
1] If it is in the whole area of City A + City B, and East longitude (E)
139 ° 50'30.8500 "-139 ° 50'4
0.0000 "and north latitude (N) 35 ° 25'25.
An area that satisfies the condition of 9000 ″ to 35 ° 25′30.3000 ″ can be designated. Of course, the area ID in FIG. 6B, the above-described characteristic ID for each area or each paging subscriber, and the like can be arranged.

Therefore, in these cases, by including the condition setting information in the call ID (area ID) for specifying the area, information defining a plurality of identification conditions of the same type or different types is arranged, so that a variety of identification conditions are provided. Can be set.

As described above, as the data format of the area ID, if a data processing format for setting conditions in general information processing or the like, for example, a technology such as a flag process for conditional branching, is applied, various data can be used. Various types of applications are possible within the scope of the present invention by using an area ID that specifies area designation and condition designation.

Also, as can be seen from the format of the area ID, various configurations can be adopted as the variable ID on the pager terminal 3 side. For example, when all of the variable IDs are composed of only the positioning information, a part of the variable IDs may be a common ID such as the above-described characteristic ID of the job type. In the latter case, the common service information can be obtained regardless of the area so that common service information can be obtained regardless of the area, and a plurality of services are defined so that different services can be received in different areas. In this case, it may be possible to make a selection based on the positioning information.

In any case, in the pager terminal 3, since the variable ID includes the positioning information generated according to the latest positioning result, the variable ID changes according to the positioning result. That is, the information becomes information corresponding to the own positioning result, and the identification result is easily changed by the difference in the own position at that time. Also, when the identification condition is satisfied, the difference in the position of the self, that is, the variable ID
, It is easy to identify the call ID that defines the identification condition including the designation of the transmission area, and to easily extract the corresponding message information.

The concept of the area-specific common ID is further advanced, and one of the plurality of comparison IDs is selected according to the positioning result, and the call ID is identified using the selected comparison ID. Is also good. In this case, the selected comparison ID is stored in the above-described ID-ROM 321 in FIG. 7, and read out from the ID-ROM 321 as in the case where the call ID is the individual ID or the group ID. The difference from the individual ID or the like is that there are a plurality of read comparison IDs and the comparison ID is selected according to the positioning result. Even when a part of the variable ID is a common ID for each area, only the part for each area is stored in the ID-ROM 321 and read out and combined with the positioning information to be used as the variable ID. become.

Next, in the above-mentioned paging system 1,
POCSAG as the system of the paging call signal 230
(Post Office Code Standarization Advisory Group)
The signal system was adopted, but the present invention is not limited to this, and FLEX-TD
A signal system or a mixed system thereof may be adopted. In these cases, similar to the POCSAG signal system, it is possible to cope with the trend of standardization of the paging system.

Various applications are also possible on the paging communication network 2 side. For example, a highly accurate GPS receiver is provided in the control center 20 or the radio base station 23 to obtain differential correction information, or the differential correction information is controlled from a similar GPS receiver in another nearby place. By notifying the center 20, the control center 20 can be provided with the differential correction information of the GPS signal 500.

Thus, the paging call signal 230 to the pager terminal 3 is transmitted by including the differential correction information, and the pager terminal 3 corrects its own position information (positioning information) based on the differential correction information. Can be. In other words, by employing the differential GPS (DGPS) positioning method, it is possible to detect the position with higher accuracy.

[0179] Differential correction information for the DGPS system can be obtained from various service lines that provide the correction information data. As this type of service line (DGPS line), for example, many lines including broadcasting media such as a marine medium wave beacon, Inmarsat, and FM multiplex broadcasting can be used.

Although the above-described paging system 1 was constructed using an existing paging system, it can be easily constructed using a two-way paging system or the like which will be constructed as a technical trend.・ Operation costs can be reduced.

The POCSAG method and FLEX described above
-In addition to the TD method, FLEX method (a method of Motorola), ERMES (European Radio Message System)
And DARC (Data Radio Channel) (FM multiplex broadcasting system developed mainly by NHK).

As described above, the instantaneous speed and traveling direction can be obtained from the Doppler information of the GPS signal.
The positioning information may include a speed and a traveling direction in addition to the altitude described above. In this case, for example, message information and the like can be transmitted only in a predetermined area limited to a pager terminal moving north at a speed of 100 km / h or more.

In the above-described embodiment, examples of the pager terminal and the paging system have been described as the mobile communication terminal and the mobile communication system of the present invention. However, the present invention is not limited to this. For example, the mobile communication terminal may be a mobile phone or a PHS. In these cases, a GPS signal receiving unit is incorporated in a mobile phone or a PHS to have a variable ID (telephone number or the like) that changes according to the position of the mobile phone, thereby establishing a communication network (system) for the mobile phone or the PHS. Use to send voice signals and messages that specify the area
Can be displayed.

In the field of in-vehicle equipment, the in-vehicle GP
Since the FM multiplex transceiver (FM pager) of the DARC system or the like used for the S signal is in a trend of receiving paging information, it is specified by changing the variable ID of the FM pager according to the positioning information of the car navigation system. It is also possible to send information by specifying the car located at (or under certain conditions). In other words, one terminal (device, etc.)
A mobile communication terminal according to the present invention will be provided if it can measure its own position as a mobile body as well as a mobile communication terminal having a built-in signal receiving unit.

[0185] Further, as long as the communication network includes a communication network capable of defining and transmitting call identification information (call ID) and is capable of transmitting to the above-mentioned various mobile communication terminals, the above-described paging system, portable telephone, etc. A single system such as a communication system and a PHS communication system, or a composite system thereof can be applied as the mobile communication system of the present invention.

In addition, changes and applications can be made as appropriate within the scope of the present invention.

[0187]

As described above in detail, according to the mobile communication terminal of the present invention, before entering the predetermined area, the mobile communication terminal receives the information of the paging call signal transmitted by designating the area before entering the area. There are effects such as extraction. Further, according to the mobile communication system of the present invention, by using the mobile communication terminal of the present invention while using the facilities and the like of the conventional mobile communication system, it is possible to provide a service that is closer to the area in a narrower area. And so on.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a paging system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a service area and a transmission area of a paging communication network.

FIG. 3 is a diagram showing a configuration of a POCSAG signal.

FIG. 4 is a diagram illustrating a configuration of information transmitted to a pager terminal in the configuration of FIG. 3;

FIG. 5 is a diagram illustrating a usage example according to the embodiment, in which only the address information and the message information are extracted from the configuration of FIG. 4;

FIG. 6 is a diagram illustrating an example of a configuration of area-specific call identification information in the case of FIG. 5D;

FIG. 7 is a block diagram of a pager terminal according to the embodiment.

FIG. 8 is an explanatory diagram of a reception area of the pager terminal.

[Explanation of symbols]

 1 paging system (mobile communication system) 2 paging communication network 3 paging terminal (mobile communication terminal) 4 telephone network or own communication network 5 GPS satellite 20 control center 23 radio base station 30 information processing unit 31 GPS receiving unit 32 paging receiving unit 34 power supply circuit 35 notification circuit 230 paging call signal 500 GPS signal

Claims (21)

[Claims] A paging call signal including call identification information defining an identification condition including designation of a transmission area and message information corresponding to the call identification information is received, and the call identification information and the corresponding message information are sequentially transmitted. Receiving the GPS signal to determine its own position, and when the variable identification information corresponding to the positioning result satisfies any of the identification conditions of the stored call identification information, A mobile communication terminal for extracting message information corresponding to the mobile communication terminal. 2. A method for generating reception area information defining a reception area in accordance with the positioning result, and when the transmission area of the received call identification information partially overlaps the reception area, the call identification information is The mobile communication terminal according to claim 1, wherein the mobile communication terminal stores and stores corresponding message information. 3. The reception area information includes a deviation value that defines the reception area when its own positioning position is set as an origin. The mobile communication terminal according to claim 2. 4. The reception area information includes a lower limit value and / or an upper limit value of position information of the reception area. The mobile communication terminal according to claim 2. 5. The reception area information includes position information that hierarchically represents the reception area.
The mobile communication terminal according to claim 2. 6. The mobile communication terminal according to claim 2, wherein the reception area is defined as an area that can move within a predetermined time from its latest positioning position. 7. The mobile communication terminal according to claim 6, wherein the predetermined time is changed based on an amount of the call identification information and / or message information stored sequentially within a unit time. . 8. The mobile communication terminal according to claim 6, wherein the call identification information and the corresponding message information are stored for the predetermined time from the time of reception. 9. The mobile terminal further determines its own moving speed and / or moving direction from the received GPS signal, and defines the receiving area based on the own positioning position and the moving speed and / or moving direction. The mobile communication terminal according to any one of claims 2 to 8, wherein 10. The mobile communication terminal according to claim 9, wherein said moving speed and / or moving direction is obtained from Doppler information of said GPS signal. 11. The method according to claim 9, wherein a plurality of pieces of positioning information generated from positioning results at different times are stored, and the moving speed and / or the moving direction are obtained from the plurality of pieces of positioning information. A mobile communication terminal according to claim 1. 12. The mobile communication terminal according to claim 1, wherein the variable identification information includes positioning information generated according to a latest positioning result. 13. A paging call signal including call identification information defining identification conditions including designation of a transmission area and message information corresponding to the call identification information, and receiving a GPS signal to determine a position of the mobile terminal. Positioning, defining a reception area including its own position, when the reception area and a part of the transmission area of the call identification information overlap,
A mobile communication terminal for extracting message information corresponding to the call identification information as one for itself, comprising a reception area size changing means for arbitrarily changing the size of the reception area. . 14. A mobile communication terminal according to claim 1, further comprising: a plurality of pagings each including different call identification information among a plurality of call identification signals and message information corresponding to the call identification information. A mobile communication system, comprising: a paging communication network for transmitting a call signal; wherein the plurality of pieces of call identification information include call identification information defining identification conditions including designation of a transmission area. 15. The mobile communication system according to claim 14, wherein the call identification information for designating the transmission area includes a lower limit value and / or an upper limit value of position information of the designated transmission area. 16. The mobile communication system according to claim 14, wherein said call identification information for designating a transmission area includes a deviation value from a specified origin. 17. The mobile communication system according to claim 14, wherein the call identification information for designating the transmission area includes position information that hierarchically represents the designated area. 18. The plurality of call identification information items include individual identification information as call identification information for specifying individual mobile communication terminals, and / or call identification information for specifying each group of a plurality of mobile communication terminals. 18. The mobile communication system according to claim 14, further comprising group identification information as information. 19. The paging call signal comprises a POCS
Characterized by being transmitted based on the AG signaling system or FLEX-TD signaling system or a mixture thereof.
The mobile communication system according to claim 14. 20. The paging communication network, comprising: a radio base station that transmits the paging call signal; and a control center that connects the radio base station to a telephone network and performs various information processing. The mobile communication system according to any one of claims 14 to 19, characterized in that: 21. The paging communication network, wherein the GPS
Having the differential correction information of the signal, transmitting the paging call signal including the differential correction information, and the mobile communication terminal corrects the positioning information of its own position based on the differential correction information. The mobile communication system according to any one of claims 14 to 20, characterized in that: