JP2002262351A - Configuration of communication service area in mobile communication system, information distribution method and its mobile communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a configuration of a communication service area that can provide an area-based service other than the usual communication service in addition to the usual communication service in a mobile communication system of a cellular system. SOLUTION: The purpose above can be achieved in the configuration of the communication service area in the mobile communication system adopting the cellular system such that a particular area where information can be distributed as a communication service different from a prescribed communication service from the mobile communication system to the mobile unit, is superimposed on a communication service area where the mobile communication system can provide the prescribed communication service to the mobile unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication service area configuration and information distribution method in a mobile communication system, and more particularly, to a communication service capable of providing a communication service from a cellular mobile communication system to a mobile station. The present invention relates to an area configuration and an information distribution method for distributing information to a mobile device in a communication service area having such a configuration.

[0002] The present invention also relates to a mobile communication system for distributing information to mobile devices according to such an information distribution method.

[0003]

2. Description of the Related Art Conventionally, in a cellular mobile communication system, various information providing services have been provided. For example,
Information on the Internet is taken into a mobile communication system, and the information is provided from a radio base station of each cell in a wide area service area to a mobile station located in the cell. In the information providing service in such a mobile communication system, the mobile device can acquire the same information from the wireless base station regardless of which cell is in the wide area service area.

[0004]

However, in the information providing method in the conventional mobile communication system, the mobile device (cellular phone, PHS terminal, mobile radio terminal, etc.) is located in any cell of the wide area service area. Although the same information can be provided to the mobile device, the mobile device is provided to the mobile device in a limited specific area (for example, an area smaller than each cell) overlapping the wide-area service area of the mobile communication system. Information related to a specific service cannot be provided. For example, it is possible to provide bargain information at a department store or information on a dangerous situation that has suddenly occurred to a mobile device that has entered a limited area such as a department store or an area where the dangerous situation has occurred. Can not.

[0005] Therefore, a first object of the present invention is to provide a cellular communication system in which a communication service area capable of providing a service other than a normal communication service in addition to a normal communication service in a region is provided. It is to provide.

A second object of the present invention is to provide an information distribution method capable of distributing information as a communication service limited to an area in such a communication service area configuration.

Further, a third object of the present invention is to provide a mobile communication system capable of distributing information to a mobile device according to such an information distribution method.

[0008]

In order to solve the above-mentioned problems, the present invention provides a mobile communication system of a cellular type in a communication service area configuration, the mobile communication system comprising: A special area in which information can be distributed from the mobile communication system to the mobile device as a communication service different from the predetermined communication service is formed by overlapping the communication service area where a predetermined communication service is provided to the mobile device. It will be.

With such a communication service area configuration, a predetermined communication service to be provided to the communication service area on which the special area is superimposed can be provided to a mobile station located in the special area. Information can be distributed as a communication service different from a predetermined communication service.

[0010] Even if the special area is formed so as to be included in a service area served by a single radio base station in the mobile communication system as described in claim 2, the special area is described in claim 3. Thus, the mobile communication system may be formed so as to overlap with a service area assigned to each of the plurality of radio base stations in the mobile communication system.

[0011] In order to solve the second problem, the present invention provides an information delivery system for delivering information based on a communication service from a cellular type mobile communication system to a mobile station. In the method, a mobile station located in a special area superimposed on a communication service area where a predetermined communication service is provided from the mobile communication system to the mobile station is transmitted from the radio base station of the mobile communication system to the predetermined area. It is configured to deliver information as a communication service different from the communication service.

[0012] A radio base station that distributes information to a pair of mobile stations located in the special area as a communication service different from the predetermined communication service, performs a predetermined communication from the mobile system to the mobile station. The base station may be a radio base station that shares a communication service area to which a service is provided, or may be a radio base station that distributes only the above information to a mobile station located in the special area different from the base station.

In the former case, as described in claim 5, one or a plurality of radio base stations sharing the communication service area use a directional antenna for a mobile station located in the special area. The above information can be distributed.

[0014] When the information is distributed from the plurality of radio base stations to the mobile station located in the special area using a directional antenna, each radio base station synchronizes the information with the mobile station. , The information may be diversity-received at the receiver, or the wireless base stations may share the special area and distribute the information.

In the latter case, the information is distributed from a radio base station other than the radio base station sharing the communication service area to a mobile station located in the special area. Can be done.

Further, as described in claim 7, a directional antenna is provided from one or more radio base stations sharing the communication service area together with a radio base station other than the radio base station sharing the communication service area. The information may be distributed to the mobile station located in the special area by using the information.

In this case, the wireless base station other than the wireless base station sharing the communication service area and one or more wireless base stations sharing the communication service distribute the information to the mobile station in synchronization with each other. The information may be received in the receiver in a diversity manner, or the special area may be shared by the radio base stations to distribute the information.

From the viewpoint of distributing the information to mobile stations satisfying a predetermined condition, the present invention provides an information distribution method in each of the mobile communication systems according to the present invention. It is determined whether a mobile device capable of receiving the information distribution has entered the special area superimposed on the area, and when it is determined that the mobile device capable of receiving the information distribution has entered the special area. And transmitting the information from the radio base station of the mobile communication system to the mobile device.

According to such an information distribution method, the information is distributed to a mobile station determined to have entered the special area as a mobile station capable of receiving the distribution of the information.

From the viewpoint of providing the specific determination method, the present invention provides an information distribution method in the mobile communication system, wherein the information is transmitted from the radio base station of the mobile communication system. A predetermined signal is transmitted toward the special area, and when the reception level is notified from the mobile station that has received the predetermined signal to the radio base station, the mobile station performs the special operation based on the reception level. It can be configured to determine whether or not the mobile device has entered the area as a mobile device that can receive the distribution of the information.

In such an information distribution method, a mobile station having a good reception level of a predetermined signal from the radio base station has entered the special area as a mobile station capable of receiving the information distribution. Can be determined.

According to a tenth aspect of the present invention, there is provided an information distribution method in a mobile communication system, wherein the mobile station can more reliably determine that the mobile station has entered a special area. The mobile station has entered the special area as a mobile station capable of receiving the distribution of the information in consideration of the reception level of the signal transmitted from the mobile station at one or more other radio base stations of the mobile communication system. It can be configured to determine whether the device is a device.

Further, from the viewpoint that the above information can be distributed only to a specific mobile device, the present invention provides:
As described in claim 11, in the information distribution method in each of the mobile communication systems, further based on information pre-assigned to the mobile station, which is notified from the mobile station to the radio base station. May be configured to determine whether the mobile device has entered the special area as a mobile device capable of receiving the distribution of the information.

The information pre-assigned to the movement is not particularly limited as long as the information can be managed in association with the mobile device in the mobile communication system. The information may be a device number, a telephone number, a personal identification number, or the like. Can be.

By grouping mobile units using the information allocated to the mobile units, different information can be distributed for each group.

According to a twelfth aspect of the present invention, in the information distribution method in the mobile communication system described above, when it is determined that a mobile device capable of receiving the information distribution has entered the special area. The key information for acquiring the content of the information to the mobile station can be transmitted from the radio base station of the mobile communication system.

In such an information distribution method, only the mobile station that has acquired the key information can acquire the contents of the information distributed using the key information.

The radio base station can change the key information based on the content of the information to be distributed.

From the viewpoint that the distribution of the information from the radio base station can be reliably stopped, the present invention provides an information distribution method in each of the mobile communication systems according to the present invention. After it is determined that a mobile device capable of receiving the above information has entered, it is determined whether or not the mobile device has left the special area, and it is determined that the mobile device has left the special area. In addition, the mobile communication system may be configured to stop the distribution of the information from the wireless base station to the mobile device.

From the viewpoint of providing a specific method for determining whether or not the mobile device has exited from the special area,
According to the present invention, in the information distribution method in the mobile communication system, when a reception level of information distributed to the mobile station is notified to the radio base station, the reception level is The mobile device may be configured to determine whether or not the mobile device has exited the special area based on

According to the present invention, in distributing key information to a mobile device as described above, from the viewpoint of collecting unnecessary key information, the present invention provides a mobile communication system according to the present invention. In the information distribution method, after it is determined that a mobile device capable of receiving the information has entered the special area, it is determined whether or not the mobile device has left the special area, and the mobile device determines whether the mobile device has entered the special area. When it is determined that the mobile station has left the area, the mobile station issues an instruction to stop the distribution of the information to the mobile station from the radio base station of the mobile communication system and to delete the key information provided to the mobile station. It can be configured to do so.

As a result, the mobile station determined to have left the special area cannot acquire the contents even if it has received the information.

According to the present invention, from the viewpoint of distributing information to a mobile device that has entered the special area without restriction, the present invention provides a method for distributing information in a mobile communication system, comprising the steps of: When a predetermined control signal is transmitted from the radio base station of the mobile communication system toward the special area, and the radio base station is notified that the predetermined control signal has been received from the mobile device, the mobile device Is determined to have entered the special area as a mobile device capable of receiving the distribution of the information.

In such an information distribution method, a mobile station that has received the predetermined control signal transmitted from the radio base station toward the special area can receive the information in principle. become.

From the viewpoint of forcibly distributing the information to a mobile station that has entered the special area during communication, the present invention provides the mobile communication system as described in claim 17. In the information distribution method according to the above, a predetermined control signal is transmitted from the radio base station of the mobile communication system toward the special area, and performs communication with any one of the radio base stations sharing the communication service area to perform the predetermined control signal. When the mobile device in the state receiving the communication service receives the predetermined control signal, the communication performed by the mobile device is forcibly interrupted with the predetermined control signal, and due to the forced interruption of the predetermined control signal, When a predetermined request signal transmitted from the mobile device is received by the radio base station,
The mobile device may be configured to determine that the mobile device has entered the special area as a mobile device that can receive the distribution of the information.

The request signal from the mobile station may be automatically transmitted when the control signal is forcibly interrupted, or may be transmitted based on a user operation.

[0037] Further, from the viewpoint of forcibly distributing the information to a mobile station that has entered the special area in a standby state, the present invention provides the mobile station as described in claim 18. An information distribution method in a communication system, wherein the predetermined control signal is forcibly interrupted for a mobile station entering the special area in a standby state of the predetermined communication service provided to the communication service area. Can be.

As described above, as a result of entering the special area during the communication and forcibly interrupting the control signal, the service for the mobile station that receives the information is considered. According to a twenty-first aspect of the present invention, in the information distribution method in the mobile communication system, any one of the radio base stations sharing the communication service area when the mobile station releases the state of receiving the information distribution. The mobile station may be configured to return to a state of receiving the predetermined service by communicating with the station.

In such an information distribution method, for example, as a result of entering the special area in a call state and forcibly interrupting the control signal, the mobile station that has received the information distribution can receive the information. When the state of receiving the distribution is canceled, the mobile device can return to the original call state.

In view of the fact that the user can be notified that the mobile device has entered the special area, the present invention provides the information distribution method in each of the mobile communication systems according to the present invention. The mobile station can be configured to output an alarm based on the predetermined control signal from the wireless base station.

The alarm output is not particularly limited as long as it can be recognized by the user, such as sound, vibration, message display, and mark display.

According to the present invention, from the viewpoint of performing adjustment when a large number of mobile devices capable of receiving the information are present in the special area, the present invention relates to the mobile communication system. In the information distribution method according to the above, when distributing the information from the radio base station to a plurality of mobile stations, it is determined whether or not the communication related to the distribution of the information is in a congestion state, the communication is congested When it is determined that the mobile station is in the state, the distribution of the information can be restricted to mobile stations other than the mobile station determined according to a predetermined priority algorithm.

The criterion for determining whether or not the communication is in a congestion state can be determined based on an unrelated resource in the mobile communication system.

The predetermined priority algorithm can be arbitrarily determined. For example, it may be determined that a mobile device having a specific contract is prioritized, or may be determined based on a priority based on a number unique to the mobile device (machine number, telephone number, password). it can.

Further, the method of regulating information distribution can be arbitrarily determined. For example, the information distribution timing can be delayed for a predetermined time, or the information distribution can be stopped until the congestion state is resolved.

When the above-mentioned special area is set for a clearly limited area such as a building or a certain site, from the viewpoint that the entry of the mobile device into the special area can be easily detected. According to the present invention, in the information distribution method in the mobile communication system, as described in claim 22, a mobile terminal entering from a predetermined entrance of the special area can transmit and receive signals to and from the entrance gateway transmitter / receiver. Transmitting one control signal, and causing the mobile terminal having received the first control signal to notify the entrance gateway transceiver of identification information for identifying the mobile device, and transmitting the identification information notified to the entrance gateway transceiver. The mobile device may be configured to determine whether or not the mobile device has entered the special area as a mobile device that can receive the distribution of the information based on the mobile device.

In such an information distribution method, when a mobile station entering the special area from the entrance receives the first control signal from the entrance gateway transceiver, the identification signal of the mobile station is transmitted to the entrance gateway transceiver. Notified. Then, based on the identification signal, it is determined whether or not the mobile device has entered the special area as a mobile device capable of receiving the distribution of the information.

According to a twenty-second aspect of the present invention, as set forth in the twenty-third aspect, in the information distribution method in the mobile communication system, the mobile device distributes the information to the special area. When it is determined that the mobile device has entered as a mobile device that can receive the information, key information for acquiring the content of the information is transmitted from the entrance gateway transceiver to the mobile device. it can.

From the viewpoint that the information can be reliably delivered from a radio base station to a mobile station that has entered the special area, the present invention provides a mobile communication system according to the present invention. In the information distribution method in the system, the identification information is transferred from the entrance gateway transceiver to the wireless base station, and after the identification information is received by the wireless base station, a mobile station specified by the identification information is transmitted from the wireless base station. It can be configured to deliver the information to the device.

According to a twenty-fifth aspect of the present invention, in the information distribution method in the mobile communication system, after the identification information is received by the radio base station, the mobile station is transmitted from the radio base station. A predetermined control signal is transmitted to the wireless base station when the request signal is received from the mobile device as a response to the predetermined control signal,
The wireless base station may be configured to distribute the information to the mobile device.

The request signal may be transmitted automatically when the mobile device receives the predetermined control signal, or may be transmitted by the mobile device based on a user operation.

From the viewpoint that, when a mobile station in communication enters the special area, the mobile station can be forcibly notified that information distributed in the special area can be received. According to a twenty-sixth aspect of the present invention, in the information distribution method in each of the mobile communication systems, a state of performing communication with any one of the radio base stations sharing the communication service area and receiving the predetermined communication service is provided. When the mobile device receives the first control signal from the entrance barrier transceiver, the communication performed by the mobile device is forcibly interrupted with the first control signal, and the forced interrupt of the first control signal is performed. Due to the above, the mobile station notifies the entrance gateway transceiver of the identification information, and the mobile station that can receive the information distribution to the mobile station notified of the identification information from the entrance gateway transceiver. The mobile device communicates with any of the radio base stations sharing the communication service area and returns the mobile device to a state of receiving the predetermined communication service after the notification. can do.

From the viewpoint that the distribution of the information to the mobile station that has left the special area can be easily stopped, the present invention provides the information distribution method in each of the mobile communication systems according to the present invention. A second control signal is transmitted from an exit gateway transceiver capable of transmitting and receiving signals to and from a mobile station exiting from a predetermined exit in the special area, and an exit gateway transmission and reception is performed from the mobile station that has received the second control signal. The base station may be configured to notify predetermined information, and when the predetermined notification is given to the exit gateway transceiver, the distribution of the information from the wireless base station to the mobile device may be stopped.

From the viewpoint of stopping distribution of the information and recovering the key information when the mobile station having acquired the key information leaves the special area, the present invention provides a mobile communication system as described in claim 28. In the information distribution method in the mobile communication system, a second control signal is transmitted from an exit gateway transceiver capable of transmitting and receiving signals to and from a mobile station exiting from a predetermined exit of the special area, The mobile terminal that has received the control signal notifies the exit gateway transceiver of predetermined information.When the predetermined notification is issued to the exit gateway transceiver, the information of the information for the mobile device is transmitted from the wireless base station to the mobile terminal. It is possible to configure so that the distribution is stopped and an instruction to delete the key information is issued from the exit gateway transceiver to the mobile device.

According to a third aspect of the present invention, there is provided a cellular mobile communication system for delivering information to a mobile station based on a communication service. A plurality of radio base stations sharing a communication service area for providing a predetermined communication service to the mobile device; and the predetermined communication service for a mobile device located in a special area superimposed on the communication service area. And a wireless base station that distributes information as a different communication service.

[0056]

Embodiments of the present invention will be described below with reference to the drawings.

A mobile communication system for providing information to a mobile device (for example, a mobile phone) according to the information providing method according to one embodiment of the present invention is configured, for example, as shown in FIG. FIG. 1 shows a schematic configuration of a cellular mobile communication system.

In FIG. 1, in this cellular mobile communication system, each of the radio base stations 10-1, 10-2, 10-2
-3, 10-4, 10-5, 10-6, and 10-7 are located near the communication service area (cell) of the radio base station 10-1 and adjacent thereto. 3, 1
The communication service areas E2, E3, E4, E5, E6, and E7 of 0-4, 10-5, 10-6, and 10-7 are installed. Each wireless base station performs wireless communication with a mobile phone located in the communication service area, and transmits and receives various control signals and various information (control signal, voice signal, data) to and from the mobile phone. For example, the radio base station 10-1 is connected to each of the mobile phones 100-0, 100-2, 100-
The wireless base station 10-2 performs wireless communication with the mobile phone 100-3 located in the communication service area E2.

The radio base station 10-1 is configured, for example, as shown in FIG.

In FIG. 2, a radio base station 10-1 has an omnidirectional antenna, an antenna device 11 for radiating a radio wave beam toward a communication service area E1, and an array antenna device having a plurality of antenna elements. 12, a switching circuit 13 for switching between the antenna device 11 and the array antenna device 12, a communication device 14, and a control device 15. The control device 15 controls the antenna device 11, the array antenna device 12, the switching circuit 13, and the communication device 14.

With such a configuration, under the control of the control device 15, the array antenna device 12 adjusts the directivity of the radio wave beam radiated from the array antenna to control the communication service formed by the antenna device 11. Area E
1 to form a predetermined communication area E0 (hereinafter referred to as a special area E0). The switching circuit 13 includes the communication device 1
4 to supply the transmission signal for the special area E0 to the array antenna device 12 and supply the transmission signal for the normal communication service area E1 to the antenna device 11 from the communication device. Do.

The communication device 14 performs wireless communication with a mobile phone in a normal communication service area E1 via the antenna device 11 and the switching circuit 13, and
And wireless communication with the mobile phone in the special area E0 via the switching circuit 13. The communication device 14 is connected to a network in a mobile communication system, acquires information to be transmitted to a mobile phone via a network NW, and transfers a signal received from the mobile phone to be transmitted to another communication terminal to the network NW. It has a function to do.

With the above configuration of the radio base station 10-1, the mobile phone 100-0 located in the special area E0
Can receive information transmitted from the radio base station 10-1 to the communication service area E1, while notifying a notification transmitted from the radio base station 10-1 to the special area E0 when a predetermined condition is satisfied. Information can also be received.

Referring to FIG. 2, a procedure for receiving broadcast information transmitted from radio base station 10-1 when a certain mobile phone 100 enters special area E0 will be described.

Radio base station 10-1 and mobile phone 100
Starts the operation, and the radio base station 10-1 operates in the special area E0.
Is in a state where the broadcast information can be transmitted from the directional antenna which directs the beam to. The mobile phone 100 is moving toward the special area E0 in a standby state.

In the above state, the mobile phone 100
Enters the special area E0, the radio base station 10
-1 is received. Therefore, the mobile phone 100 needs to acquire the notification information.
A request signal for requesting the wireless base station 10-1 to be certified as a mobile phone capable of receiving the broadcast information (hereinafter, such a mobile phone is referred to as a special mobile phone as necessary) is transmitted to the mobile base station 10-1. It is transmitted together with identification information (PID) for identifying the telephone 100 (S1). Upon receiving this request signal, the wireless base station 10-1 requests the mobile phone 100 to report the reception level of the control notification signal (S2). Upon receiving the request, the mobile phone 100 reports the reception level of the control notification signal to the wireless base station 10-1 (S3). The radio base station 10-1 that has received the report of the reception level executes the reception level determination process (S
4).

The radio base station 10-1 determines whether or not the reported reception level is within a predetermined level range (for example, not less than a predetermined level) predetermined for the special area E0 (S5). If the reception level is within a predetermined level range, the mobile phone 100
Assuming that the mobile phone 100 is located in the area 0, the mobile phone 100 is certified as a special mobile phone. That is, the radio base station 10-
1 records the identification information (PID) of the mobile phone 100 and transmits a key that enables decryption of the encrypted notification information (S6).

On the other hand, if the reception level reported from mobile phone 100 is out of the predetermined level range (for example, below the predetermined level), radio base station 10-1 responds to the mobile phone 100 (transmits a key). Is not performed and a request signal for receiving certification as a special portable telephone is set.

The mobile phone 100 that has received the key transmitted from the radio base station 10-1 as described above is certified as a special mobile phone, and stores the key in the internal memory. And the mobile phone 100
The reception of the encrypted broadcast information transmitted from the wireless base station 10-1 is started (S7), and the encrypted broadcast information is decrypted using the key to obtain the original broadcast information.
In this way, the mobile phone 100 certified as a special mobile phone can acquire the notification information transmitted from the wireless base station 10-1.

While the portable telephone 100 is receiving the broadcast information, the radio base station 10-1 communicates with the portable telephone 10
0 reports the reception level of the broadcast information. Then, the wireless base station 10-1 determines whether or not the reception level sequentially reported from the mobile phone 100 is within the predetermined level range (S8). When it is determined that the reported reception level is out of the predetermined level range, the radio base station 10-1 determines that the mobile phone 100 has deviated from the special area E0, and
00 is instructed to delete the key (S9).

Upon receiving the key deletion command, the cellular phone 100 deletes the key stored in the internal memory (S1).
0), the receiving operation of the broadcast information transmitted from the wireless base station 10-1 is stopped. Thereafter, the mobile phone 100 is in a state where it can receive a communication service (a voice communication service, a data distribution service, etc.) provided from the wireless base station 10-1 to the communication service area E1.

Next, the portable telephone 100 is moved to the special area E0.
A procedure for more strictly determining that the mobile phone 100 has entered the mobile phone 100 and providing the broadcast information from the wireless base station 10-1 to the mobile phone 100 will be described with reference to FIG.

As in the case described above, the radio base station 10-
Reference numeral 1 denotes a state in which broadcast information is transmitted by a directional antenna that directs a beam to the special area E0, and the mobile phone 100 is moving toward the special area E0 in a standby state. Furthermore, a plurality of radio base stations arranged around the radio base station 10-1, for example, the radio base station 10-
2, 10-3 and 10-4 are already in operation.

In such a state, the mobile phone 100
Upon receiving the control notification signal transmitted from the wireless base station 10-1 toward the special area E0, the control unit transmits a request signal to be certified as a special mobile phone (S2).
1). When the request signal is received by the radio base station 10-1, the radio base station 10-1 requests the mobile phone 100 to report the reception level of the control notification signal in the same manner as described above (S22). Then, based on the request, the mobile phone 100 notifies the reception level of the control notification signal to the wireless base station 10-1 (S23). The radio base station 10-1 that has received the notification of the reception level executes the reception level determination process (S24).

The radio base station 10-1 determines whether or not the notified reception level is within a first level range (for example, the first level or higher) predetermined for the special area E0. It is determined (S25), and when it is determined that the reception level is within the first level range (YE in S25).
S), the radio base station 10-1
-2, 10-3, and 10-4 are in a state of waiting for reports of reception levels.

As described above, the request signal transmitted from the mobile phone 100 to receive the certification of the special mobile phone propagates in the space and is transmitted to each of the radio base stations 10-2 and 10-2 around the radio base station 10-1. -3 and 10-4. Each of the radio base stations 10-2, 10-3 and 10-4 measures the reception level of the request signal (S26, S27, S2
8). Then, each of the radio base stations 10-2, 10-3 and 1
0-4 indicates the measured reception level as the radio base station 10-
1 is notified via a predetermined communication line (for example, a dedicated line).

As described above, the radio base station 10-1 in the state of waiting for the report of the reception level (S29) receives the request signal from each of the surrounding radio base stations 10-2, 10-3 and 10-4. When the level is received, it is determined whether or not each reception level falls within a second level range predetermined for the special area E0 (for example, a second level lower than the first level or lower). Then, the wireless base station 10-1
If it is determined that all the notified reception levels are within the second level range (YES in S29), it is determined that the mobile phone 100 is located in the special area E0, and the mobile phone 100 is The mobile phone 100 is authenticated as a telephone and transmits a key necessary for decoding the broadcast information to the mobile phone 100 as in the above-described example (S30).

On the other hand, if the reception level reported from portable telephone 100 is outside the first level range (for example, less than the first level) (NO in S25), or the reception level is equal to the first level. Even within the level range, one of the reception levels notified from the surrounding radio base stations 10-2, 10-3, and 10-4 is outside the second level range (for example, exceeds the second level). ) (S29)
NO), the wireless base station 10-1
No response (key transmission) is made to 0, and the state transits to a predetermined state.

As described above, the portable telephone 100 that has received the key transmitted from the radio base station 10-1 stores the key in the internal memory and then transmits the key from the radio base station 10-1. The received broadcast information is decrypted using the key to obtain the original broadcast information (S3).
1).

According to the above procedure, the special area E
Only the mobile phone 100 that is strictly determined to have entered 0 can receive the notification information transmitted from the wireless base station 10-1 toward the special area E0.

Note that mobile phone 100 which has been authorized as a special mobile phone as described above and has keys stored in the internal memory deviates from its special area E0 according to the same procedure as steps S8 to S10 shown in FIG. Is determined, the key is deleted from the internal memory. The determination as to whether the mobile phone has deviated from the special area E0 is made in the same manner as the determination as to whether the mobile phone 100 has entered the special area E0.
, 10-3 and 10-4 mobile phone 100
It is also possible to reflect the reception level of a predetermined signal from

Further, a procedure for enabling only a more limited portable telephone 100 to receive broadcast information transmitted from the radio base station 10-1 to the special area E0, such as making a predetermined contract, is described below. This will be described with reference to FIG.

When the user makes a contract with the communication carrier (manager of the mobile communication system) to receive the distribution of specific broadcast information in the special area E0, a predetermined password (even if determined by the user) , May be determined by the communication carrier) in the mobile communication system. Further, the password may be stored in the mobile phone 100 or may be simply memorized by the user.

The mobile phone 100, the radio base station 10-1, and the surrounding mobile phones 10-2, 10-3, and 10-4 of the user who have made the above contract are, for example, shown in FIG.
Are performed in accordance with the procedure from step S21 to step S29 shown in FIG. In this process, when the wireless base station 10-1 determines that the mobile phone 100 is located in the special area E0 (YES in S29), it transmits a personal identification number to the mobile phone 100 as shown in FIG. A request signal to the effect is transmitted (S41). Upon receiving the request signal, the mobile phone 100 displays, for example, a message prompting the input of a personal identification number, and when the user performs an input operation of the personal identification number based on the message, the personal identification number is transmitted to the wireless base station 10-1. (S42). If a password is stored in the mobile phone 100, the mobile phone 100 transmits the stored password to the wireless base station 10-1 when receiving the request signal.

When the wireless base station 10-1 receives the personal identification number transmitted from the mobile phone 100 (S43), the wireless base station 10-1 acquires the personal identification number registered in the mobile communication system, It is determined whether or not the passwords match, that is, whether or not the received password is correct (S44). If it is determined that the received password is correct (YES in S44), the mobile phone 100 is determined to be a special mobile phone, and similar to the above-described respective examples,
A key required for decoding the broadcast information is transmitted to the mobile phone 100 (S45). On the other hand, if the password received from the mobile phone 100 is not correct, the wireless base station 10-1
Makes a transition to a predetermined state without responding to the mobile phone 100 (transmitting a key).

As described above, the portable telephone 100 that has received the key transmitted from the radio base station 10-1 stores the key in the internal memory and then stores the key in the radio base station 10-1. Then, the encrypted broadcast information received from is decoded using the key to obtain the original broadcast information (S46).

According to the above-described procedure, only the mobile phone 100 to which a password has been given in advance by a contract or the like receives broadcast information transmitted from the radio base station 10-1 toward the special area E0. Will be able to

Note that the portable telephone 100 which has been certified as a special portable telephone as described above and has a key stored in the internal memory is provided in the same manner as in the above-described example.
The key is erased from the internal memory according to the same procedure as in 8-S10.

In the procedure shown in FIG. 4, the procedure in the portable telephone 100 and the radio base station 10-1 before the radio base station 10-1 requests a password (S41) is shown in FIG. The same procedure as steps S1 to S5 may be used.

As described above, the mobile phone 100 is
Three procedures for receiving the broadcast information transmitted from -1 to the special area E0 (see FIGS. 2, 3, and 4)
Was explained. By the way, whether the service that provides the broadcast information to the mobile phone in the special area E0 should be a service based on an exclusive service, a priority service, or a compulsory service is determined by the broadcast information. It depends on the purpose of the offer and the expected effect. In an actual system, the service of providing the broadcast information is an exclusive service, a priority service,
The procedure for the mobile phone to receive the notification information transmitted toward the special area E0 is determined based on which of the services should be the main service and the compulsory service.

For example, when a test question or material is transmitted as notification information to a school classroom or the like, and a student in the classroom receives the notification information (test problem or material) using a mobile phone, the notification is issued. Services for providing information to students should be limited (exclusive) services.
In addition, when a mobile phone is used to conduct a questionnaire survey on, for example, men in public facilities, a service that provides questions of the questionnaire, commentary, and the like as notification information is also limited (exclusive) for men. Should be a service. In such a case, it is preferable that the mobile phone can receive the notification information according to the third procedure (see FIG. 4) using the password as described above.

When bargain information is provided as notification information to a person who has a mobile phone at a certain department store, services for providing such notification information (bargain information) are limited from the viewpoint of sales promotion. It is preferable that the service is not a special (exclusive) service but a priority service to those who come to the department store. In such a case, as described above, the mobile phone can receive the notification information in accordance with the first procedure (see FIG. 2) or the second procedure (see FIG. 3) without using a personal identification number. Is preferred.

Further, for example, when an area in which a dangerous situation (fire, road construction, etc.) occurs is designated as a special area E0 and a person who has entered the special area E0 is provided with the information as information, The service to be provided is preferably a compulsory service from the viewpoint that the notification information should always be provided to persons in the specific area E0. In such a case, as described above, the mobile phone can receive the notification information in accordance with the first procedure (see FIG. 2) or the second procedure (see FIG. 3) without using a personal identification number. Is preferred.

Further, for the special area E0, the position of the holder of the portable telephone (general person, maintenance manager of the accident, etc.), gender (male, female), age (adult, child), etc. are determined. A plurality of pieces of notification information can be transmitted.
In this case, a plurality of keys different for each content are transmitted from the radio base station transmitting the broadcast information to each mobile phone in the special area E0. The mobile phone that has received the plurality of keys can obtain appropriate notification information by selecting a key according to the user's position, gender, age, and the like.

Further, when the mobile phone receives the notification information in accordance with the third procedure (see FIG. 4), the notification information that can be obtained by the mobile phone can be differentiated by the password. .

Next, when the radio base station 10-1 transmits information about the situation to the area (special area E0) where a dangerous situation has occurred, the special area E
Another example of a procedure for the mobile phone 100 entering 0 to acquire the notification information will be described with reference to FIGS. 5 and 6.

When the mobile phone 100 enters the special area E0 in the standby state, the processing is performed according to the procedure shown in FIG. When the mobile phone 100 enters the special area E0 during communication (for example, during a call), processing is performed according to the procedure shown in FIG.

In FIG. 5, radio base station 10-1 transmits a predetermined control signal toward normal communication service area E1, and transmits a control notification signal using a directional antenna toward special area E0. Transmitting (S10
1). In this state, the mobile phone 100 approaches the special area E0 while receiving the predetermined control signal for the normal communication service area E1. And the mobile phone 10
When 0 enters the special area E0, a control notification signal for the special area E0 arrives at the mobile phone 100 receiving the predetermined control signal for the normal communication service area E1.

The mobile phone 100 is located in the special area E0.
So that the reception of the control notification signal for the communication has priority over the reception of the predetermined control signal for the normal communication service area E1.
It has a function of forcibly interrupting the control channel by the control notification signal. Therefore, the mobile phone 100 receiving the predetermined control signal for the normal communication service area E1 receives the special area E0.
Is switched to the receiving state of the control notification signal by the forced interruption of the control notification signal to the control channel. Then, the mobile phone 100 notifies the wireless base station 10-1 of the switch to the reception state of the control notification signal (S
102).

Upon receiving the notification, the radio base station 10-1 transmits notification information (information for notifying a danger such as a fire or an accident) to the special area E0 (S10).
3). In the mobile phone 100, when it is determined that the notification information received from the wireless base station 10-1 is a content that indicates a dangerous situation, an alarm sound (vibration) is generated, an alarm lamp is turned on, a message or an alarm mark is displayed, and the like. Information for prompting evacuation is output (S104). When the user who confirms this information moves so as to evacuate from the area where the dangerous situation has occurred, the mobile phone 100 receives the control notification signal transmitted toward the specific area E0 with the mobile phone 100. The level drops. When the reception level falls below a predetermined level, the mobile phone 100
Determines that the vehicle has deviated from the special area E0, and switches to a state of receiving a predetermined signal from the normal communication service area E1. Then, the mobile phone 100 notifies the wireless base station 10-1 of the switching of the reception state (S105).

The radio base station 10-1 having received this notification,
Recognizing that the mobile phone 100 has deviated from the special area E0, the transmission of the notification information to the mobile phone 100 is stopped (S106).

According to such a procedure, when the user carrying the mobile phone 100 on standby enters the special area E0, the mobile phone 100 informs about the situation of a dangerous situation that has occurred in the special area E0. Information can be received automatically. As a result, the user can know that a dangerous situation has occurred in the special area E0.

When mobile phone 100 is communicating, processing is performed according to the procedure shown in FIG.

In FIG. 6, mobile telephone 100 communicates with another communication terminal (other mobile telephone, fixed telephone, etc.) based on a communication service provided by radio base station 10-1 to normal communication service area E1. (S11
1). In this state, the mobile phone 100 moves to the special area E0.
, The wireless base station 10-1
The direction and position of the mobile phone 100 are estimated based on the signal from 0, and it is determined that the mobile phone 100 has entered the special area E0 based on the estimation result.
The radio base station 10-1 is thus configured to
When it detects that 0 has entered the special area E0, it performs a forced interrupt by a control signal for the communication channel and transmits the control signal to the mobile phone 100. At this time,
The mobile communication system suspends communication with the communication terminal after transmitting a predetermined message (such as an intrusion into a disaster area) to a communication terminal that is a communication partner of the mobile phone 100.

When the mobile phone 100 receives the control signal by the forced interruption to the communication channel, based on the control signal, the mobile phone 100 moves to the special area E0 such as generation of sound or vibration, lighting of a lamp, and the like. Information indicating that the vehicle has entered is output (S112). When the user recognizing this information performs a predetermined operation, the mobile phone 100 notifies the wireless base station 10-1 of a request for transmitting the notification information (S
112).

The radio base station 10-1 having received this notification
Notification information indicating a dangerous situation is transmitted to the mobile phone 100 (S113). And the mobile phone 10
0 outputs information that prompts evacuation from the area based on the notification information from the wireless base station 10-1 (message display, generation of an alarm sound (vibration), lighting of an alarm lamp, and the like).
When the user who confirms this information moves to evacuate from the area where the dangerous situation occurs, the reception state of the signal from the mobile phone 100 at the wireless base station 10-1 changes. When detecting that the mobile phone 100 has deviated from the special area E0 from the direction and distance of the mobile phone 100 estimated based on the reception state of the signal, the wireless base station 10-1 transmits the control signal to the communication channel. Release the forced interrupt. When the forced interruption of the control signal to the communication channel is released, the mobile phone 100 returns to the communication state based on the communication service provided from the wireless base station 10-1 to the normal communication service area E1 ( S114).

As a result, the hold state of the communication terminal as the communication partner is released, and the portable telephone 100 sets the radio base station 1
The communication with the communication terminal is restarted based on the communication service provided from 0-1 to the normal communication service area E1 (S115).

If the above-mentioned dangerous situation is resolved, the radio base station 10-1 stops transmitting the broadcast information, and as a result, the special area E0 formed on the wide area service area disappears. .

According to the above-described procedure, when the user having the portable telephone 100 in communication enters the special area E0, the portable telephone 100 is placed in a state where the communication with the communication partner is suspended. It is possible to automatically receive notification information on the situation of a dangerous situation that has occurred in the special area E0.

As described in each of the above examples (see FIGS. 2 to 4), the portable telephone 100 receives the broadcast information transmitted from the radio base station 10-1 to the special area E0, and A specific process when viewing the received notification information on the telephone 100 will be described.

Broadcast information to be transmitted from the radio base station 10-1 is hierarchized, for example, as shown in FIG. One frame, which is a unit for transmitting information, is composed of a plurality of higher-level broadcast information 1,..., N indicating the highest-order item of information to be broadcast (see FIG. 8A). Each of the above high-level notification information,
For example, the higher-level notification information 1 is further composed of a plurality of middle-level notification information 1-1,..., 1-M representing items of details (see FIG. 8B). Each piece of middle notification information, for example, middle notification information 1-1 is further configured by a plurality of lower notification information 1-1-1,..., 1-1-P indicating items of the details (FIG. 8). (C)).

For example, when the broadcast information on the product sold at a certain facility is transmitted to the special area E0 set at the facility, the above-described higher-level broadcast information 1 to N Represents the type of product sold at the facility,
Each of the middle notification information 1-1 to 1-M represents a maker name (brand name) of a product type represented by the corresponding higher notification information,
Each lower notification information 1-1-1 to 1-1-P represents a product name of a product type of a maker (brand) represented by the corresponding higher notification information and middle notification information.

Cellular phone 100 and radio base station 10-1
Performs processing according to the procedure shown in FIG. 8, for example.

Mobile phone 100 can receive broadcast information transmitted from radio base station 10-1 to special area E0 according to any of the procedures shown in FIGS. 2 to 4 (when mobile phone 100 is certified). State). In this state, the wireless base station 10-1 communicates with the special area E0.
, N are transmitted for each frame in units of frames (S211). When the mobile phone 100 receives one frame of broadcast information composed of the respective pieces of higher-level broadcast information 1,..., N (S212), the respective higher-level broadcast information 1,.
An item corresponding to N (for example, a product type sold at a facility where the special area E0 is set) is displayed on the display panel. Then, when the user performs an operation of selecting one of the items (product type: for example, a wristwatch), higher-level broadcast information corresponding to the selected item, for example, higher-level broadcast information 1 is transmitted from the mobile phone 100 to the wireless base station 10. -1 (S212).

Upon receiving the selected higher-level broadcast information 1, the radio base station 10-1 records (registers) the higher-level broadcast information 1 together with the identification information of the mobile phone 100 as user desired information (S213). And the wireless base station 1
0-1 transmits the middle-level notification information 1-1,..., 1-M constituting the received higher-level notification information 1 to the mobile phone 100 (S214). The mobile phone 100 stores each of the middle notification information 1
Upon receiving -1,..., 1-M (S215), items (for example, maker names (brand names)) corresponding to the respective middle notification information 1-1,.
When the user performs an operation of selecting one of the items (for example, company A), the middle notification information corresponding to the selected item, for example, the middle notification information 1-1 is displayed on the mobile phone 10.
0 is transmitted to the wireless base station 10-1 (S215).

Upon receiving the selected middle notification information 1-1, the radio base station 10-1 records the middle notification information 1-1 as desired information in association with the identification information of the mobile phone 100 ( Registration) (S216). Then, the radio base station 10-1 transmits the lower-order broadcast information 1-1-1,...
0 (S217). When receiving the lower notification information 1-1-1,..., 1-1-P as the detailed desired information (S218), the mobile phone 100 displays an item (for example, a product name) corresponding to the lower notification information. Display on the panel. Then, when the user selects any item (for example, A watch), lower notification information corresponding to the selected item, for example, lower notification information 1-1-2 is transmitted from the mobile phone 100 to the wireless base station 10-. 1 (S2
18). Upon receiving the selected lower notification information 1-1-2, the radio base station 10-1 records the lower notification information 1-1-2 as desired information in association with the identification information of the mobile phone 100 (registered). ) (S219).

After that, the radio base station 10-1 registers the higher order registered in association with the identification information of the mobile phone 100.
A predetermined server (not shown) searches for detailed information of the merchandise information (the A watch of Company A) represented by the middle and lower notification information (1, 1-1, 1-1-2). To ask. When the wireless base station 10-1 acquires detailed information (for example, a function, a feature, a price, a sales floor name and a position in a facility, and the like of a wristwatch called A watch of Company A) from the server as a search result, the details are obtained. The information is transmitted to the mobile phone 100 (S220). If the mobile phone 100 has a function of receiving an image (still image, moving image), the image information of the product can be included in the detailed information.

When the portable telephone 100 receives the detailed information from the radio base station 10-1, it displays the detailed information on the display panel (S221). The user can know the function, price, appearance, sales floor name, and location of the product selected by the user from the detailed information. Then, when the user desires to purchase the product, the user can go to the counter and purchase the product.

When a user performs a predetermined operation when he / she wants to purchase the product, the product name, time information, price,
The reservation request information of the product including the user name and the like is transmitted from the mobile phone 100 to the wireless base station 10-1 as a response signal of the transmitted detailed information (S221). Wireless base station 1
When 0-1 receives the reservation request information, it records the reservation request information (S222). And the wireless base station 1
0-1 transfers the reservation request information to the terminal device installed at the sales floor of the product via the mobile communication system. As a result, the product can be reserved.

Further, when the user desires to purchase the quotient, the user performs a predetermined operation, so that the purchase request information of the product including the product name, price, credit number, etc. is used as a response signal to the transmitted detailed information. The data may be transmitted from the mobile phone 100 to the wireless base station 10-1. In this case, upon receiving the purchase request information, the wireless base station 10-1 records the purchase request information and transfers the purchase request information to a predetermined electronic payment system via the mobile communication system. Thus, the user can automatically perform the payment for the desired product.

Next, a transmission diversity technique can be applied to improve the quality of the broadcast information received by the mobile phone 100 in the special area E0 or to improve the reliability thereof. In this case, the broadcast information is transmitted from the radio base station 10-1 to the special area E0, and another radio base station located near the radio base station 10-1, for example, the radio base stations 10-2 and 10-2. -3 and 10-4 transmit the same broadcast information by directing a beam from the directional antenna to the special area E0.

Referring to FIG. 9, a procedure when mobile telephone 100 receives broadcast information transmitted toward special area E0 according to the above-described transmission diversity technique will be described.

In FIG. 9, the mobile phone 100 and the radio base stations 10-1, 10-2, 10-3, and 10-4 perform communication processing according to, for example, the procedures of S21 to S29 shown in FIG. In the process, the reception levels of the signals from the mobile phone 100 notified by the radio base station 10-1 from the surrounding radio base stations 10-2, 10-3, and 10-4 are within the second level range. (YES in S29), the wireless base station 10-1 recognizes the mobile phone 100 as a special mobile phone that can receive the broadcast information, and sets the key used for acquiring the broadcast information to the mobile phone 100-1. Send to 100.

Thereafter, the radio base station 10-1 sends a transmission request of the broadcast information together with the timing information to the radio base stations 10-2, 10-3, and 10-4 therearound (S6).
1). Then, the radio base station 10-1 transmits the notification information to the special area E0 in accordance with the timing determined based on the timing information (S61). Also,
Upon receiving the timing information and the transmission request from the radio base station 10-1, the radio base stations 10-2, 10-3, and 10-4 reduce the transmission power based on the reception level of the signal from the mobile phone 100 described above. The mobile phone 10 is adjusted according to the timing determined based on the timing information.
The notification information is transmitted to address 0 (S63, S64, S6).
5).

Thus, each of the radio base stations 10-1, 1
The same notification information is transmitted to the mobile phone 100 from 0-2, 10-3, and 10-4 in synchronization. As a result, the mobile phone 100 receives the same broadcast information from each of the wireless base stations at the same time (S66). Mobile phone 100
Performs diversity combining of the same received broadcast information using a known technique, and acquires original broadcast information using a key already stored in an internal memory.

As described above, the broadcast information is transmitted to the mobile phone 100 in the special area E0 using the transmission diversity technique.
, The mobile phone 100 can acquire high-quality or highly reliable notification information.

A response signal from the mobile phone 100 is also received by a plurality of radio base stations 10-2, 10-3, and 10-4 around the radio base station 10-1, and the signals are received by the radio base station. It can also be forwarded to the station 10-1. In this case, it is possible to improve the reliability of the uplink (from the mobile phone 100 to the mobile communication system) line.

As a processing procedure for certifying the mobile phone 100 as a special mobile phone before the processing step S61 in the radio base station 10-1 shown in FIG. 9 is started, the procedure shown in FIG. S8) or FIG.
(S41 to S44) shown in FIG.

In each of the above-described examples, the number of portable telephones located in the special area E0 and authorized as special portable telephones increases, and the notification information is obtained according to the procedure shown in FIG. If the communication is frequently performed, the uplink traffic may be congested and the system operation may not be performed normally. A measure for preventing such traffic congestion will be described with reference to FIG. In the example shown in FIG. 10, three mobile phones 100-1, 100-2, and 100-3 are located in the special area E0.
Has received the broadcast information from the wireless base station 10-1 (more mobile phones may be receiving the broadcast information).

Each mobile phone 100-1, 100-2, 1
00-3 receives, for example, a key for acquiring notification information according to the procedure shown in FIG. 4 using a personal identification number, and stores the key in an internal memory. In this state, the wireless base station 10-1 is transmitting broadcast information to the special area E0 (S301). Each of the mobile phones 100-1, 100-2, and 100-3 receiving the broadcast information notifies the wireless base station 10-1 of the desired information A, B, and C respectively selected from the broadcast information (S302, S303, S
304). The wireless base station 10-1
The desired information A, B, and C received from -1, 100-2, and 100-3 are recorded (registered) in association with the identification information of the mobile phone (S305).

The radio base station 10-1 determines whether or not there is a traffic congestion state based on the number of notifications of the desired information from each mobile phone as described above (S306).
If the traffic is not congested, the radio base station 10-1
Are the mobile phones 100-1, 100-2, 100-3
, Corresponding desired information A, B, and C are transmitted. On the other hand, if the radio base station 10-1 determines that the mobile phone 10 is in a traffic congestion state (YES in S306), the mobile phone 10-1
By notifying the identification information of 0-1, 100-2, and 100-3, an inquiry is made as to whether or not each mobile phone is a mobile phone owned by a user (VIP user) who has made a special contract (S307). .

As a result, for example, the portable telephone 100-1
Obtains a report from the mobile communication system that the mobile phone is owned by such a VIP user (YE in S307).
S), the wireless base station 10-1 communicates with the mobile phone 100-
Desired information A recorded (registered) corresponding to the identification information 1
Then, the contents related to the desired information A are transmitted to the mobile phone 100-1 (S308). Upon receiving the content relating to the desired information A, the mobile phone 100-1 transmits a response signal to the wireless base station 10-1 (S309). Then, the radio base station 10-1 records the received response signal in association with the identification information of the mobile phone 100-1 (S310).

If the mobile phone 100-1 is a mobile phone owned by the VIP user in the traffic congestion state as described above, the radio base station 10-1 transmits the desired information B to the other mobile phones 100-2 and 100-3. , C are suspended until the upstream traffic congestion is released.

On the other hand, in the radio base station 10-1, each of the mobile phones 100-1, 100-2, and 100-3 has a V
When a report indicating that the mobile phone is not owned by the IP user is received from the predetermined server (NO in S307), each mobile phone 1
From the passwords 00-1, 100-2, and 100-3, the password with the highest priority is selected from the passwords already received.
For example, if the priority is determined to be higher in the ascending order of the personal identification number in the system, the smallest one of the received personal identification numbers is selected (S311). Then, the wireless base station 10-1 searches for the content of the desired information B recorded (registered) in association with the identification information of the mobile phone corresponding to the selected password, for example, the mobile phone 100-2. The contents relating to the desired information B are transmitted to the mobile phone 100-2 (S312). Upon receiving the content related to the desired information B, the mobile phone 100-2 transmits a response signal to the wireless base station 10-1 (S
313). Then, the wireless base station 10-1 records the received response signal in association with the identification information of the mobile phone 100-2 (S314). Hereinafter, the transmission of the desired information to the corresponding mobile phones in ascending order of the personal identification number is performed at a predetermined cycle until the traffic congestion state is resolved.

Further, when the priority based on the password assigned to the portable telephone is not determined (NO in S311), selection of the portable telephone to which the notification information (desired information) is to be transmitted based on another method. Is performed. Wireless base station 10
For example, -1 calculates the k value (0, 1, 2, 3, 4) according to k = (password) mod5 using the password of each mobile phone. Then, the radio base station 10-1 transmits the desired information to the mobile phones corresponding to the smaller k values in a predetermined cycle until the uplink traffic congestion is resolved.

When the upstream traffic congestion occurs as described above, the desired information is not transmitted to all the portable telephones that have notified the desired information, but the portable telephone selected according to a predetermined method. The desired information is transmitted. Thereby, it is possible to prevent a further increase in uplink traffic.

Next, when the special area E0 is set in a building or a certain limited site, it is possible to more reliably determine whether a mobile phone enters the special area E0 and departs therefrom. An example will be described.

For example, when a special area E0 is set in the dome-shaped facility 200 as shown in FIG. 12, an entrance gateway transmitter / receiver 51 is installed at the entrance gate of the dome-shaped facility 200 and an exit is provided at the exit gate. A gateway transmitter / receiver 52 is installed. Further, for example, when a special area E0 is set in a building 201 such as a department store as shown in FIG. 13, an entrance gateway transceiver 51 is installed at an entrance dedicated to the building 201 and an exit is provided at an exit dedicated exit. A gateway transmitter / receiver 52 is installed. Further, for example, as shown in FIG. 14, an entrance gateway transceiver 51 and an exit gateway transceiver 52 are installed at the entrance and exit of the factory site (premises).
A metal shielding plate 60 for preventing electromagnetic interference is provided between them. Further, as shown in FIG. 15, a shielding plate 61 for preventing electromagnetic interference is installed on the center line of the road leading to the entrance of the building or site as described above, and the road enters or exits the building or site. Divided into roads. Then, an entrance gateway transceiver 51 is installed on the entrance road side, and an exit transceiver 52 is installed on the exit road side.

The portable telephone 100 is provided with an entrance gateway transceiver 51 and an exit gateway transceiver 52 installed for a building or site where the special area E0 is set as described above.
And has a function of communicating according to a communication method different from that of communication with each wireless base station.

In the above configuration, for example, in the configuration shown in FIG. 12, mobile phone 100 is connected to radio base station 10-1.
The processing for certifying the mobile phone as a special mobile phone that can receive the notification information transmitted from the mobile phone is performed, for example, as shown in FIG.

The entrance gateway transceiver 51, the exit gateway transceiver 52, and the mobile phone 100 have started operation.
Then, the mobile phone 100 is approaching the entrance of the dome-shaped facility 200 in a standby state.

The entrance gateway transceiver 51 is a portable telephone 1
In preparation for the approach of 00, a control signal is constantly transmitted to the area near the entrance (S51). As described above, when the mobile phone 100 in the standby state approaches the entrance of the dome-shaped facility 200 and receives a control signal from the entrance gateway transceiver 51, it receives special notification information in the dome-shaped facility 200. To this end, the mobile phone 100 transmits predetermined identification information (S52). This identification information can include a password registered in the system as a user to use when using the mobile phone 100 in advance, and ID information (telephone number and body number) for specifying the mobile phone 100.

The entrance gateway transceiver 51 having received the identification information checks the contents of the identification information (S53).
As a result, when it is determined that the mobile phone 100 should not be certified as a special mobile phone (NO in S54), the entrance barrier transceiver 51 transits to a predetermined state and the mobile phone 1
No further signal transmission is performed for 00.

On the other hand, as a result of the content inspection of the identification information, when it is determined that the mobile phone 100 should be certified as a special mobile phone (YES in S54), the entrance gateway transceiver 51 transmits the mobile phone 100 from the mobile phone 100. The received identification information is recorded, and a special area key predetermined in the system is transmitted to the mobile phone 100 (S
55). In addition, the entrance gateway transmitter / receiver 51 transmits the notification that the special area key has been added to the mobile phone 100 specified by the identification information to the wireless base station 10 serving as the transmission source of the notification information.
-1 and the exit gateway transceiver 52 (S5).
5). In addition, the entrance gateway transceiver 51 for the entrance is a wireless base station 1
0-1 and the gateway transmitter-receiver 52 for the exit are connected by, for example, a dedicated line.

Upon receiving the notification from the entrance gateway transceiver 51, the exit gateway transceiver 52 receives the notification.
The identification information specifying 0 and the special area key are recorded. Also, upon receiving the notification from the entrance gateway transceiver 51, the wireless base station 10-1 as the transmission source of the broadcast information also records the identification information and the special area key, and if there is a request from the mobile phone 100, , The notification information of the mobile phone 10
It waits in a state where it can transmit to 0. Mobile phone 10
0 receives the special area key from the entrance gateway transceiver 51 as described above, and records the special area key in the internal memory (S56). After that, the mobile phone 100
In the dome-type facility 200, it becomes possible to receive the notification information.

[0146] The mobile phone 10 in a state in which the broadcast information can be received in this way receives the broadcast information from the radio base station 10-1 according to the procedure described later. Then, when the user finishes the business in the dome-shaped facility 200 and approaches the exit, processing is performed in the following procedure.

Exit gateway transmitter / receiver 5 installed at exit
2 constantly transmits a control signal to the exit exit area (S57). When the user approaches the exit from the dome-shaped facility 200 to exit, the radio base station 10
When the mobile phone 100, which has received the notification information from -1, receives the control signal from the exit gateway transceiver 52, the mobile phone 100 deletes the special area key recorded in the internal memory, and notifies the exit gateway transceiver 52 of the fact. Notification is made (S58).

The exit gateway transceiver 52, which has received the notification that the special area key has been deleted from the mobile phone 100, deletes the identification information specifying the mobile phone 100 and the special area key, and deletes the special area key. This is notified to the wireless base station 10-1 (S59). The exit gateway transceiver 52 is connected to the wireless base station 10-1 by, for example, a dedicated line. By the above notification, the wireless base station 10-1 establishes the mobile phone 100 identified by the identification information.
Recognizes that the user has exited from the special area E0 set in the dome-shaped facility 200, and deletes the special area key recorded corresponding to the identification information.

According to the above example, the entrance gateway transceiver 51 is used.
Based on the notification from the exit gateway transceiver 52, the wireless base station 10-1, which is the source of the broadcast information, can reliably recognize the entry of the mobile phone 100 into the special area E0 and the exit from the special area E0. become able to.

In the example described above, the processing procedure when the mobile phone 100 enters the dome-shaped facility 200 in a standby state has been described.
With reference to FIG. 17, a description will be given of a processing procedure when entering the dome-shaped facility 200 in a state where a call is in progress based on the service provided from 1 to the normal communication service area E1.

In FIG. 17, mobile phone 100 is in a dome state in a state where it is talking with another mobile terminal or fixed telephone based on a service provided from radio base station 10-1 to normal communication service area E1. It approaches the entrance of the mold facility 200 (S61). As described above, the entrance gateway transceiver 51 is constantly transmitting a control signal to the area near the entrance (S62).

When the portable telephone 100 receives the control signal by the forced interruption from the entrance gateway transceiver 51, it sounds an alarm. Then, when the user performs a predetermined operation by the alarm, the identification information specifying the mobile phone 100 is transmitted to the entrance gateway transceiver 51 (S6).
3). Upon receiving the identification information from the mobile phone 100, the entrance gateway transceiver 51 checks the content of the identification information (S64). As a result, if it is determined that the mobile phone 100 should not be certified as a special mobile phone (N in S65)
O), the entrance barrier transceiver 51 transits to a predetermined state,
The subsequent signal transmission to the mobile phone 100 is not performed.

On the other hand, as a result of the content inspection of the identification information, when it is determined that the mobile phone 100 is to be certified as a special mobile phone (YES in S65), the entrance gateway transceiver 51 enters the mobile phone. The special area key is transmitted to the mobile phone 100 while receiving the identification information received from the mobile phone 100 (S66). In addition, as in the above-described example, the entrance gateway transmitter / receiver 51 transmits the notification that the special area key has been added to the mobile phone 100 specified by the identification information to the wireless base station 10- 1
And it notifies the gateway transmitter / receiver 52 for the exit (S66).

Upon receiving the notification from the entrance transceiver 51, the exit gateway transceiver 52 records the identification information and the special area key. Also, upon receiving the notification from the entrance gateway transmitter / receiver 51, the radio base station 10-1 records the identification information and the special area key. Telephone 10
It waits in a state where it can transmit to 0.

The mobile phone 100 receives the special area key transmitted from the entrance gateway transceiver 100 as described above, recognizes that it is a special mobile phone, and records the special area key in the internal memory ( S67). Thereafter, the mobile phone 100 returns to the state of talking with the other mobile phone or fixed phone based on the service provided from the wireless base station 10-1 to the normal communication service area E1 (S68). Then, after the call ends, the user of the mobile phone 100
When the user wants to receive the notification information from the mobile phone 100, the user can obtain the notification information from the mobile phone 100 by using a special area key recorded in the internal memory by performing a predetermined operation.

When the call of the mobile phone 100 is prolonged and the mobile phone 100 exits from the exit while the communication is in progress, a control signal from the exit gateway transceiver 52 is forcibly interrupted by the mobile phone 100. And FIG.
After the identification information and the special area key are deleted in the same procedure as the procedure shown in S57 to S59 shown in FIG. 6, the mobile phone 100 returns to the talking state.

Next, as described above, the radio base station 10-1
Mobile phone 100 that has entered dome-shaped facility 200 in which special area E0 in which notification information from the user can be received is set.
Will be described with reference to FIG.

The radio base station 10-1 records the identification information specifying the mobile phone 100 and the special area key in response to the notification from the entrance gateway transceiver 51 as described above (S55 in FIG. 16), and The mobile phone 100 as a mobile phone is recognized (S71). Then, the wireless base station 10-1 transmits a control notification signal addressed to the mobile phone 100 by directing a radio wave beam to the special area E0 (dome-shaped facility 200) using a directional antenna (S71).

After the mobile phone 100 enters the dome-shaped facility 200, the special area key is recorded in the internal memory as described above (S56 in FIG. 16), and then the radio base station 1
The control notification information from 0-1 is received (S7).
2). Then, the mobile phone 100 transmits the request signal to the wireless base station 10-1 to receive the notification information (S72). The wireless base station 10-1 is a mobile phone 10
0, the base station 10 receives the request signal.
A request to report the reception level of the signal from -1 and the special area key is made to the mobile phone 100 (S73).

Upon receiving this request from the radio base station 10-1, the mobile phone 100 stores the reception level of the control notification signal from the radio base station 10-1 and the special area key stored in the internal memory in the radio base station. 10-1 is notified (S7
4). The radio base station 10-1 that has received the notification determines whether the special area key is a registered one for the mobile phone 100 or not, and whether the reception level is the broadcast information. It is checked whether there is no problem in performing the operation (S75).

As a result of the inspection, if there is no problem with the reception level and the special area key (YES in S76), the radio base station 10-1 forms a radio beam from the directional antenna toward the special area E0. The predetermined notification information is transmitted to the mobile phone 100 (S77). Mobile phone 10
No. 0 receives the broadcast information from the radio base station 10-1 (S78), and performs the decoding process using the special area key stored in the internal memory and acquires the contents of the broadcast information.

If there is any problem with the reception level and the special area key, the radio base station 10-1 sends a request again for the reception level and the special area key to the mobile phone 100.
(S73).

As described above, the user of the mobile phone 100 receiving the notification information from the radio base station 10-1 in the dome-shaped facility 200 finishes the business in the dome-shaped facility 200, and from the exit. When the mobile phone 100 attempts to exit, as described above, the exit gateway transceiver 5
2 to receive the control signal and erase the special area key recorded in the internal memory (S58 in FIG. 16). As a result, the mobile phone 100 cannot receive the notification information from the wireless base station 10-1.

Further, the radio base station 10 receiving the report (S59 in FIG. 16) that the identification information of the mobile phone 100 and the special area key have been deleted from the exit gateway transceiver 52.
-1 recognizes that the mobile phone 100 has left the special area E0 set in the dome-shaped facility 200, and deletes the special area key recorded corresponding to the identification information (S79). Thereby, the wireless base station 10-1 stops transmitting the notification information to the mobile phone 100.

In each example described above, the radio beam is directed from the radio base station 10-1 that performs a normal communication service to the special area E0 by using a directional antenna (the array antenna device 12 shown in FIG. 2), and the special area E0 is used. The notification information is transmitted to the mobile phone 100 located in E0. Apart from such a configuration, for example, as shown in FIG. 19, a temporary wireless base station 3 temporarily installed in a wide area service area.
0 to the mobile phone 100-0 in the special area E0.

In this case, the temporary radio base station 30 performs the same procedure as the above-described radio base station 10-1 (FIGS. 3, 4,
According to FIGS. 5, 6, 7, 9, and 11, the notification information can be transmitted to the mobile phone 100 in the special area E0. Further, the temporary radio base station 30 is connected to the radio base stations 10-1 and 10-near the special area E0.
2, 10-3, etc., together with the radio base station 10- shown in FIG.
According to the same procedure as in 1, the diversity transmission of the notification information can be performed to the mobile phone 100 in the special area E0.

Further, as shown in FIGS. 12 to 15, the temporary radio base station 30 includes an entrance gateway transceiver 51 and an exit gateway transceiver 52 installed at the entrance of a building where a special area E0 is set. At the same time, the notification information can be transmitted to the mobile phone 100 in the building according to the same procedure as that of the wireless base station 10-1 shown in FIG. In this case, the temporary wireless base station 30 is
00, installed in the building 201 or factory premises.

In each example described above, the special area E0
Is a normal communication service area of a certain radio base station, for example, a normal communication service area E of the radio base station 10-1.
This was set to be superimposed on 1. Special area E0
Is not only set in this way,
0, as shown in FIG. 21, a normal communication service area of a plurality of radio base stations, for example, two radio base stations 10-1
And 10-2 normal communication service areas E1 and E2
Or, for example, three wireless base stations 10
-1, 10-2, and 10-3 can be set so as to be superimposed on the normal communication service areas E1, E2, and E3.

In this case, the radiation beam from each of the plurality of radio base stations partially covers the special area E0, and the radio base station corresponding to the cellular phone 100 located in the partial area receives the radiation beam. Even if the broadcast information is transmitted, the radiation beams from each of the plurality of radio base stations cover the entire special area E0, and each radio base station transmits the information to the mobile phone 100 in the special area E0. The notification information may be transmitted in a diversity manner.

Furthermore, when the special area E0 is set to be superimposed on a plurality of normal communication service areas as described above,
A temporary radio base station 30 for transmitting broadcast information to the mobile phone 100 in the special area E0 is shown in FIGS.
It can also be installed as shown in 3. In this case, the temporary radio base station 30 can transmit the notification information to the mobile phone 100 in the special area E0 according to the same procedure as the radio base station 10-1 in each example described above.

In each of the above examples, S2 and S shown in FIG.
4, S5, S22, S24, S2 shown in FIG.
5, S29, S41, S43, S4 shown in FIG.
4, the processing in S101 and S103 shown in FIG.
The processing in S51, S53, and S54 shown in FIG.
The processing in S62, S64, and S65 shown in FIG.
Each of the processes in S71, S73, S75, and S76 shown in (1) corresponds to a mobile unit approach determination unit.

The processing in S8 shown in FIG. 3 and S1 shown in FIG.
A part of the processing at 06, each of the processing at S57 and S59 shown in FIG. 16 corresponds to the mobile station exit determination means, and a part of the processing at S9 shown in FIG. 3 and the processing at S106 shown in FIG. , And each of the processes in S79 shown in FIG. 18 corresponds to information distribution stop control means.

[0173]

As described above, claims 1 to 3 are described.
ADVANTAGE OF THE INVENTION According to this invention of description, while providing the predetermined | prescribed communication service to be provided to the communication service area on which the special area overlaps with respect to the mobile station located in a special area, it differs from the predetermined communication service. Information can be distributed as a communication service. As a result, in addition to the normal communication service corresponding to the predetermined communication service, a service other than the normal communication service limited to a region can be provided.

Further, according to the present invention as set forth in claims 4 to 28, in the configuration of the communication service area as described above, an information distribution method capable of distributing information as a communication service limited to an area is realized. can do.

Further, according to the present invention as set forth in claims 29 to 53, it is possible to realize a mobile communication system capable of distributing information to mobile devices according to such an information distribution method.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first configuration example of a system for providing broadcast information to a mobile device according to an information providing method according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration example of a wireless base station having a function of transmitting broadcast information to a mobile device in a special area E0.

FIG. 3 is a flowchart showing a first exemplary procedure for a mobile device (mobile phone) to be certified as a mobile device (mobile phone) capable of receiving broadcast information in a special area E0.

FIG. 4 is a flowchart illustrating a second procedure example for a mobile device to be recognized as a mobile device capable of receiving broadcast information in a special area E0.

FIG. 5 is a flowchart illustrating a third exemplary procedure for a mobile device to be recognized as a mobile device capable of receiving broadcast information in a special area E0.

FIG. 6 is a flowchart showing a first example of a procedure for forcibly delivering notification information to a mobile device that has entered a special area E0.

FIG. 7 is a flowchart illustrating a second example of a procedure for forcibly distributing notification information to a mobile device that has entered a special area E0.

FIG. 8 is a diagram showing an example of the structure of broadcast information.

FIG. 9 is a flowchart illustrating an example of a procedure for transmitting broadcast information to a mobile device in a special area E0.

FIG. 10 is a flowchart illustrating an example of a procedure for transmitting broadcast information to a mobile device in a special area E0 using a diversity transmission technique.

FIG. 11 is a flowchart illustrating an example of a processing procedure when uplink traffic increases due to an increase in mobile devices in a special area E0.

FIG. 12 is a diagram showing a first installation example of an entrance gateway transceiver and an exit gateway transceiver.

FIG. 13 is a diagram showing a second installation example of an entrance gateway transceiver and an exit gateway transceiver.

FIG. 14 is a diagram showing a third installation example of an entrance gateway transceiver and an exit gateway transceiver.

FIG. 15 is a diagram showing a fourth installation example of an entrance gateway transceiver and an exit gateway transceiver.

FIG. 16 is a flowchart illustrating an example of a processing procedure in an entrance gateway transceiver, an exit gateway transceiver, and a mobile phone.

FIG. 17 is a flowchart illustrating an example of a processing procedure performed when a mobile device passes through an entrance of a special area E0 in which an entrance gateway transceiver is installed during communication.

FIG. 18: Special area E where the entrance gateway transceiver is installed
It is a flowchart which shows an example of the procedure for the mobile station which entered the special area E0 from the entrance of 0 to receive alerting | reporting information.

FIG. 19 is a diagram illustrating a second configuration example of a system for providing broadcast information to a mobile device according to an information providing method according to an embodiment of the present invention.

FIG. 20 is a diagram illustrating a third configuration example of a system for providing broadcast information to a mobile device according to an information providing method according to an embodiment of the present invention.

FIG. 21 is a diagram illustrating a fourth configuration example of a system for providing broadcast information to a mobile device according to an information providing method according to an embodiment of the present invention.

FIG. 22 is a diagram illustrating a fifth configuration example of a system for providing broadcast information to a mobile device according to an information providing method according to an embodiment of the present invention.

FIG. 23 is a diagram illustrating a sixth configuration example of a system for providing broadcast information to a mobile device according to the information providing method according to an embodiment of the present invention. 10-1 to 10-7 Wireless base station 11 Antenna device 12 Array antenna device 13 Switching circuit 14 Communication device 15 Controller 30 Temporary wireless base station 51 Entrance gateway transceiver 52 Exit gateway transceiver 100 (100-0 to 100) -3) Mobile phones (mobile devices)

Claims (53)

[Claims] 1. A communication service area configuration in a cellular type mobile communication system, wherein the mobile communication system overlaps with a communication service area in which a predetermined communication service is provided to a mobile station from the mobile communication system. The configuration of a communication service area in which a special area in which information can be distributed to a device as a communication service different from the predetermined communication service is formed. 2. A communication service area configuration in a mobile communication system according to claim 1, wherein said special area is formed so as to be included in a service area assigned to a single radio base station in said mobile communication system. Configuration of service area. 3. The configuration of a communication service area in a mobile communication system according to claim 1, wherein said special area is formed so as to overlap a service area assigned to each of a plurality of radio base stations in said mobile communication system. Of communication service area. 4. An information distribution method for distributing information based on a communication service from a cellular mobile communication system to a mobile device, wherein the communication system provides a predetermined communication service from the mobile communication system to the mobile device. An information distribution method for distributing information as a communication service different from the predetermined communication service from a radio base station of the mobile communication system to a mobile station located in a special area superimposed on a service area. 5. The information distribution method in a mobile communication system according to claim 4, wherein one or more radio base stations sharing the communication service area use a directional antenna to transmit to a mobile station located in the special area. An information distribution method for distributing the above information. 6. An information distribution method in a mobile communication system according to claim 4, wherein said information is transmitted from a radio base station other than the radio base station sharing said communication service area to a mobile station located in said special area. Information distribution method to distribute. 7. The information distribution method in a mobile communication system according to claim 6, wherein one or a plurality of wireless base stations sharing the communication service area together with a wireless base station other than the wireless base station sharing the communication service area. An information distribution method for distributing the information to the mobile station located in the special area using a directional antenna. 8. A method for distributing information in a mobile communication system according to claim 4, wherein a mobile station capable of receiving the information has entered a special area superimposed on the communication service area. Determining, when it is determined that a mobile station capable of receiving the information distribution has entered the special area, information for distributing the information from the radio base station of the mobile communication system to the mobile station. Delivery method. 9. An information distribution method in a mobile communication system according to claim 8, wherein a predetermined signal is transmitted from said radio base station of said mobile communication system toward said special area, and said mobile station receives said predetermined signal. When the mobile station is notified of the reception level to the radio base station, whether or not the mobile station is a mobile station that has entered the special area as a mobile station capable of receiving the distribution of the information based on the reception level. Information distribution method to determine. 10. An information distribution method in a mobile communication system according to claim 9, further comprising a reception level of a signal transmitted from said mobile station at one or more other radio base stations of said mobile communication system. An information distribution method for determining whether the mobile device has entered the special area as a mobile device capable of receiving the distribution of the information. 11. The information distribution method in a mobile communication system according to claim 9 or 10, further comprising the step of notifying said mobile station to said radio base station from said mobile station based on information previously allocated to said mobile station. An information distribution method for determining whether or not is a mobile device that has entered the special area as a mobile device that can receive the distribution of the information. 12. The information distribution method in a mobile communication system according to any one of claims 8 to 11, wherein when it is determined that a mobile station capable of receiving the information distribution has entered the special area, the mobile station receives the information. An information distribution method for transmitting key information for acquiring the content of the information from the radio base station of the mobile communication system. 13. The information distribution method in a mobile communication system according to any one of claims 8 to 12, wherein after it is determined that a mobile station capable of receiving said information has entered said special area, said mobile station sets said mobile station to said special area. It is determined whether or not the mobile device has left the special area. When it is determined that the mobile device has left the special area, the distribution of the information to the mobile device from the wireless base station of the mobile communication system is stopped. Information distribution method. 14. The information distribution method in a mobile communication system according to claim 13, wherein when the reception level of the information distributed to the mobile station is notified to the radio base station, the mobile station moves based on the reception level. An information distribution method for determining whether or not the device has left the special area. 15. The information distribution method in a mobile communication system according to claim 12, wherein after it is determined that a mobile station capable of receiving said information has entered said special area, said mobile station leaves said special area. It is determined whether or not the mobile station has left the special area. When it is determined that the mobile station has left the special area, the distribution of the information from the wireless base station of the mobile communication system to the mobile station is stopped and the mobile station is stopped. Information distribution method for instructing the mobile device to delete the key information provided to the mobile device. 16. The information distribution method in a mobile communication system according to claim 8, wherein a predetermined control signal is transmitted from said radio base station of said mobile communication system toward said special area, and said predetermined control signal is transmitted from said mobile station. An information distribution method for determining that the mobile device has entered the special area as a mobile device capable of receiving the distribution of the information, when the wireless base station is notified of the reception of the information. 17. The information distribution method in a mobile communication system according to claim 8, wherein a predetermined control signal is transmitted from said radio base station of said mobile communication system to said special area, and said communication service area is allocated. When the mobile station in the state of receiving the predetermined communication service by communicating with the wireless base station receives the predetermined control signal, the mobile station forcibly interrupts the predetermined control signal in the communication performed by the mobile station. When a predetermined request signal transmitted from the mobile station due to the forced interruption of the predetermined control signal is received by the radio base station, the mobile station distributes the information to the special area. An information distribution method for determining that a mobile device has entered as a receivable mobile device. 18. The information distribution method in a mobile communication system according to claim 16, wherein said predetermined communication service provided to said communication service area is waited for by said mobile station entering said special area. Information distribution method for forcibly interrupting control signals. 19. An information distribution method in a mobile communication system according to claim 17, wherein when the mobile station cancels the state of receiving the information distribution,
An information distribution method for performing communication with any one of the radio base stations sharing the communication service area and restoring the mobile device to a state where the predetermined service is received. 20. An information distribution method in a mobile communication system according to any one of claims 16 to 19, wherein an alarm is output to a mobile station by the predetermined control signal from the radio base station. 21. The information distribution method in a mobile communication system according to claim 8, wherein when the radio base station distributes the information to a plurality of mobile stations, the communication related to the information distribution is in a congestion state. Information distribution that determines whether the communication is in a congestion state and restricts the distribution of the above information to mobile devices other than the mobile device determined according to a predetermined priority algorithm. Method. 22. The information distribution method in a mobile communication system according to claim 8, wherein said first control signal is transmitted from an entrance gateway transceiver capable of transmitting and receiving signals to and from a mobile station entering from a predetermined entrance of said special area. The mobile terminal that has received the first control signal notifies the entrance gateway transceiver of identification information for identifying the mobile device, and the mobile terminal receives the first control signal based on the identification information notified to the entrance gateway transceiver. An information distribution method for determining whether or not a mobile device has entered the special area as a mobile device capable of receiving the distribution of the information. 23. The information distribution method in a mobile communication system according to claim 22, wherein when it is determined that said mobile station has entered the special area as a mobile station capable of receiving the information distribution. An information distribution method for transmitting key information for acquiring the content of the information from the entrance gateway transceiver to the mobile device. 24. The information distribution method in a mobile communication system according to claim 22, wherein said identification information is transferred from an entrance gateway transceiver to said radio base station, and said identification information is received by said radio base station. And an information distribution method for distributing the information from the radio base station to the mobile station specified by the identification information. 25. An information distribution method in a mobile communication system according to claim 24, wherein after the radio base station receives the identification information, a predetermined control signal is transmitted from the radio base station to the mobile station. An information distribution method in which the radio base station distributes the information to the mobile device when the radio base station receives a request signal from the mobile device as a response to the predetermined control signal. 26. The information distribution method in a mobile communication system according to claim 22, wherein the communication with any one of the radio base stations sharing the communication service area is performed to receive the predetermined communication service. When the mobile device receives the first control signal from the entrance gateway transceiver, the communication performed by the mobile device is forcibly interrupted with the first control signal, and the forcible interrupt of the first control signal is performed. Information indicating that the mobile device can receive the information from the mobile device to the mobile device for which the identification information has been notified from the mobile device to which the identification information has been notified from the mobile device. After the notification, the mobile device returns to a state in which it performs communication with one of the radio base stations sharing the communication service area and receives the predetermined communication service. Information distribution method. 27. An information distribution method in a mobile communication system according to claim 22, wherein said exit gateway transmitter / receiver capable of transmitting / receiving signals to / from a mobile station exiting from a predetermined exit of said special area. A second control signal is transmitted, and the mobile device that has received the second control signal notifies the exit gateway transceiver of predetermined information.When the predetermined notification is issued to the exit gateway transceiver, An information distribution method for stopping distribution of the information from the wireless base station to the mobile device. 28. The information distribution method in a mobile communication system according to claim 23, wherein a second control signal is transmitted from an exit gateway transceiver capable of transmitting and receiving signals to and from a mobile station exiting from a predetermined exit in the special area. The mobile station that has received the second control signal notifies the exit gateway transceiver of predetermined information, and when the predetermined notification is given to the exit gateway transceiver, the wireless base station An information distribution method in which the distribution of the information to the mobile device is stopped and an instruction to delete the key information is issued from the exit gateway transceiver to the mobile device. 29. A cellular mobile communication system for distributing information based on a communication service to a mobile station, wherein a plurality of radios sharing a communication service area for providing a predetermined communication service to the mobile station are provided. A mobile communication system comprising: a base station; and a wireless base station that distributes information as a communication service different from the predetermined communication service to a mobile station located in a special area superimposed on the communication service area. 30. The mobile communication system according to claim 29, wherein one or a plurality of radio base stations sharing the communication service area use a directional antenna to transmit information to a mobile station located in the special area. A mobile communication system that performs distribution of data. 31. The mobile communication system according to claim 29, wherein a radio base station other than the radio base station sharing said communication service distributes said information to a mobile station located in said special area. system. 32. The mobile communication system according to claim 31, wherein one or more radio base stations sharing the communication service together with a radio base station other than the radio base station sharing the communication service use a directional antenna. A mobile communication system that distributes the information to mobile stations located in the special area. 33. The mobile communication system according to claim 29, wherein it is determined whether a mobile device capable of receiving the information has entered a special area superimposed on the communication service area. When the mobile station entry determining means determines that a mobile station capable of receiving the information distribution has entered the special area, the radio base station transmits the information to the mobile station. A mobile communication system that distributes information. 34. The mobile communication system according to claim 33, wherein said mobile unit entry determining means transmits a predetermined signal from said radio base station to said special area, and said predetermined signal When the reception level is notified to the radio base station from the mobile station that has received the information, the mobile station has entered the special area as a mobile station to receive the distribution of the information based on the reception level. A mobile communication system comprising: a mobile device determination unit that determines whether or not the mobile device determines whether or not the mobile device determines whether or not the mobile device determines whether or not the mobile device has been determined. 35. The mobile communication system according to claim 34, wherein said mobile station entry determining means further includes a signal transmitted from said mobile station at one or more other radio base stations of said mobile communication system. Receiving level acquisition control means for acquiring a reception level, wherein the mobile model determination means is adapted to perform the movement by taking into account the reception levels at the plurality of other radio base stations acquired by the reception level acquisition control means. A mobile communication system configured to determine whether the mobile device has entered the special area as a mobile device capable of receiving the distribution of the information. 36. The mobile communication system according to claim 33, wherein said mobile station entry determining means further acquires information previously assigned to said mobile station, which is notified from said mobile station to said radio base station. The mobile device enters the special area as a mobile device that can receive the distribution of the information based on the information pre-assigned to the mobile device obtained by the identification information obtaining device. A mobile communication system which determines whether or not the mobile device is a mobile device. 37. The mobile communication system according to any one of claims 33 to 36, wherein when the mobile unit entry determining means determines that a mobile device capable of receiving the information distribution has entered the special area, A mobile communication system having key information transmission control means for causing the radio base station to transmit key information for acquiring the content of the information to the mobile device. 38. The mobile communication system according to claim 33, wherein after it is determined that a mobile station capable of receiving said information has entered said special area, said mobile station leaves said special area. Mobile station leaving determination means for determining whether or not the mobile station has left the special area when the mobile station leaving determination means determines that the mobile station has left the special area. A mobile communication system having information distribution stop control means for stopping distribution of the information. 39. The mobile communication system according to claim 38, wherein said information distribution stop control means, when a reception level of information distributed to said mobile device is notified to said radio base station,
A mobile communication system which determines whether or not the mobile device has left the special area based on the reception level. 40. The mobile communication system according to claim 37, wherein after it is determined that a mobile device capable of receiving said information has entered said special area, said mobile device has left said special area. Mobile station exit determination means for determining whether the mobile station has exited the special area, and stops distribution of the information from the wireless base station to the mobile station when the mobile station exit determination means determines that the mobile station has exited the special area. Information distribution stop control means for causing the mobile device to delete key information provided to the mobile device when it is determined by the mobile device exit determination means that the mobile device has left the special area. A mobile communication system having key information erasure control means for performing the operation. Information distribution method. 41. The mobile communication system according to claim 33, further comprising: control signal transmission control means for transmitting a predetermined control signal from said radio base station to said special area; When the radio base station is notified that the predetermined control signal has been received from the mobile device, it is determined that the mobile device has entered the special area as a mobile device capable of receiving the distribution of the information. Mobile communication system. 42. The mobile communication system according to claim 33, wherein control signal transmission control means for transmitting a predetermined control signal from said radio base station to said special area, and one of said communication service areas. When the mobile station in communication with the radio base station and receiving the predetermined communication service receives the predetermined control signal, a forced interrupt for forcibly interrupting the predetermined control signal in the communication performed by the mobile station. Having a control means, the mobile device entry determination means, when a predetermined request signal transmitted from the mobile device due to the forced interruption of the predetermined control signal is received by the radio base station A mobile communication system which determines that the mobile device has entered the special area as a mobile device capable of receiving the distribution of the information. 43. The mobile communication system according to claim 41, wherein said predetermined control signal is forcibly applied to a mobile station entering said special area in a standby state of said predetermined communication service provided to said communication service area. A mobile communication system having a forced interrupt control means for interrupting. 44. The mobile communication system according to claim 42, wherein when the mobile station cancels the state of receiving the information distribution,
A mobile communication system having a mobile device return control means for performing communication with any one of the radio base stations sharing the communication service area and returning the mobile device to a state in which the predetermined service is received. 45. The mobile communication system according to claim 41, further comprising alarm control means for causing a mobile device to output an alarm based on said predetermined control signal from said radio base station. 46. The mobile communication system according to claim 33, wherein when said information is delivered from said radio base station to a plurality of mobile stations, whether or not communication related to the information delivery is in a congestion state. Congestion determination means for determining whether or not the communication is in a congestion state by the congestion determination means, and distributing the information to mobile equipment other than the mobile equipment determined according to a predetermined priority algorithm. And a communication restriction control means for restricting the communication. 47. The gateway communication system according to claim 33, wherein a signal can be transmitted / received to / from a mobile station entering from a predetermined entrance of the special area, and a first control signal is transmitted. And identification information notification control means for notifying the entrance gateway transceiver of identification information identifying the mobile station from the mobile station that has received the first control signal, and identification information notified to the entrance gateway transceiver. And a mobile device entry determining means for determining whether the mobile device has entered the special area as a mobile device capable of receiving the distribution of the information based on the mobile device. 48. The mobile communication system according to claim 47, wherein when said mobile unit approach determination means determines that said special area has entered as a mobile device capable of receiving said information, said entrance barrier transceiver. A mobile communication system as key information transmission control means for transmitting key information for acquiring the contents of the information to a mobile device from a mobile terminal. 49. The mobile communication system according to claim 47, wherein the entrance gateway receiver has identification information transfer control means for transferring the identification information notified from the mobile station to the radio base station, A mobile communication system in which a wireless base station receives identification information from the entrance gateway receiver, and then distributes the information to a mobile device specified by the identification information. 50. The mobile communication system according to claim 49, wherein after the radio base station receives the identification information, a control signal transmission control for transmitting a predetermined control signal from the radio base station to the mobile station. Means for transmitting the information from the radio base station to the mobile device when the radio base station receives a request signal from the mobile device as a response to the predetermined control signal. Mobile communication system. 51. The mobile communication system according to claim 47, wherein the mobile station is in communication with any one of the radio base stations sharing the service area and receiving the predetermined communication service. When a first control signal from the gateway transceiver is received, a forced interrupt control means for forcibly interrupting the first control signal in communication performed by the mobile device; and Identification information notification control means for notifying the identification information to the entrance gateway transceiver from the mobile device, and a mobile device capable of receiving the distribution of the information to the mobile device notified of the identification information from the entrance gateway receiver. Notification control means for notifying information indicating the presence of the communication service area; A communication service restoration control means for communicating with the line base station and restoring the mobile device to a state in which the predetermined communication service is received. 52. The mobile communication system according to any one of claims 47 to 51, wherein said mobile communication system can transmit and receive signals to and from a mobile station exiting from a predetermined exit of said special area, and transmits a second control signal. Information transmission control means for notifying predetermined information to the exit gateway transceiver from the mobile device receiving the second control signal, and the predetermined notification is made to the exit gateway transceiver. A mobile communication system having information distribution stop control means for stopping distribution of the information from the radio base station to the mobile device. 53. The mobile communication system according to claim 48, wherein said mobile communication system is capable of transmitting and receiving signals to and from a mobile device exiting from a predetermined exit in said special area, and transmits a second control signal. Information notification control means for notifying predetermined information to the exit gateway transceiver from the mobile device that has received the second control signal, and when the predetermined notification is given to the exit gateway transceiver, Information distribution stop control means for stopping the distribution of the information from the radio base station to the mobile station; and an exit gateway transmission / reception instruction for deleting key information when the predetermined notification is sent to the exit gateway transceiver. A mobile communication system having key information erasure control means for causing a mobile device to perform key information erasure.