JPH11122166A - Mobile communication system and its communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inform many mobile station users of information at a low cost without increasing traffic of a communication network. SOLUTION: An information center system IC transmits notice information in a way of multiple address communication to base stations CS1, CS2,... forming simultaneous call areas of a personal handy phone system PHS by selectively using an incoming sub address, an outgoing sub address, a user-user information element or facility information element of a setup message stipulated by the TTC standard JT-Q931. Furthermore, the base stations CS1, CS2,... transmit the notice information to each mobile station resident in the simultaneous call areas by using an incoming call message of a simultaneous call channel (PCH) stipulated by the ARIB standard RCR STD-28 and the notice information is displayed on an LCD in the mobile station.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to, for example, PHS
(Personal Handy-phone System), which relates to a mobile communication system in which a plurality of base stations are geographically distributed in a service area and wireless communication services are provided to mobile stations via these base stations. The present invention relates to a mobile communication system having a function of broadcasting news information and the like of an information center apparatus to a mobile station via each of the above base stations, and a communication device thereof.

[0002]

2. Description of the Related Art In recent years, digital mobile communication systems typified by cellular telephone systems and PHS have rapidly become widespread. In these systems, in addition to the existing voice communication service, implementation of an information providing service for notifying mobile stations of information such as news and weather forecasts is being considered.

In this information providing service, for example, an information center device is connected to a PHS via a public network. When information such as news is provided to the mobile station of the PHS, a call is made from the information center apparatus to the public network to form a communication link with each mobile station to which information is to be provided. This is realized by transmitting information from the information center device to each mobile station via a link.

[0004]

However, in such a conventional system, information is transmitted by making separate call connections from the information center device to each mobile station to be provided via a public network. There is a need to. For this reason, the line usage fee of the public network and the PHS is charged each time the information is notified, so that the information provider and the mobile station user increase the cost burden. Further, when the number of mobile station users to be provided increases, the traffic of the public network and the PHS during the information providing time increases, and as a result, there is a disadvantage that communication of other subscribers is adversely affected.

The present invention has been made in view of the above circumstances, and an object of the present invention is to notify a large number of mobile station users of information at a low cost and without increasing traffic on a communication network. To provide a mobile communication system and a communication device thereof.

[0006]

In order to achieve the above object, the present invention comprises a plurality of base stations constituting a paging area, a mobile station connected to these base stations via a radio line, In a mobile communication system including an information center device connected to a plurality of base stations via a communication network, notification information and first information are transmitted from the information center device to each base station constituting a paging area. Is inserted into the call setup message specified by the communication network and transmitted. Further, each base station determines whether or not the call setup message is for information notification based on the first identification information of the call setup message. The information is extracted and temporarily stored in a memory, and then the notification information is inserted into a predetermined control channel defined between the mobile station and the mobile station together with the second identification information and transmitted to the mobile station. And in the mobile station,
When the control channel arrives, it is determined based on the second identification information whether the control channel is for information notification. If the information notification is for the control channel, the arrival of the control channel is determined. , And outputs the notification information to the user.

[0007] The transmission of the notification information from the information center apparatus to each base station is performed by transmitting at least one of the destination subaddress information element, the calling subaddress information element, the user / user information element, and the facility information element in the call setup message. It is characterized by being inserted.

[0008] The transmission of the notification information from each base station to the mobile station is characterized in that it is performed using any one of a paging channel, a broadcast channel, and a user-defined control channel.

Therefore, according to the present invention, paying attention to the fact that a plurality of base stations constitute a paging area, first, an information center device uses a call setup message to each base station in the paging area. Notification information is transmitted, and the notification information is transmitted from these base stations to the mobile stations using control channels such as a paging channel, a broadcast channel, and a user-defined control channel. For this reason,
The notification information can be transmitted in a broadcast manner using the general paging area without forming a communication link between the information center device and the mobile station to which the information is to be provided. Therefore, even in a system that connects the information center device and the mobile station via the public network, the information provider and the mobile station user perform information notification and obtain the information at low cost without being charged from the public network. be able to. In addition, even if the number of mobile station users to whom information is provided increases, there is no need to worry about increasing the traffic on the public network, thereby preventing other subscribers from being adversely affected.

[0010]

FIG. 1 is a schematic diagram showing an embodiment of a mobile communication system according to the present invention.
1 to CSn indicate PHS base stations. These base stations CS1 to CSn are, for example, geographically dispersed in the service area of the system as shown in FIG. 2, and form a paging area E1, E2, E3 for each of a plurality of adjacent stations. .

The mobile stations PS1 to PSm are connected to the base stations C
In a cell formed by S1 to CSn, a cell is connected to a nearest base station via a radio line. At this time, as a radio access method between the base station and the mobile station, for example, TDM
The A-TDD scheme is used. The mobile stations PS1 to PSm include a portable information terminal having a data communication function and a radio access function, and a portable information terminal having a personal computer PC connected to the portable telephone, in addition to a portable telephone having only a call function.

Each of the base stations CS1 to CSn is connected to a public network INW via a wired line. The public network INW includes the ISDN and the base station C
And an I 'interface network for accommodating S1 to CSn. An information center device IC is connected to the public network INW in addition to many subscriber wire terminals. The information center device IC is managed by, for example, a local government, a newspaper company, a broadcasting station, a carrier of a mobile communication system, and the like, and sends information to an unspecified number of mobile station users or specific mobile station users who have contracted in advance by a push method. Notify. The information to be notified includes news, weather forecast, road traffic information, shopping information, event information, and the like.

FIG. 3 is a block diagram showing a functional configuration of the information center device IC. The information center device IC includes an input interface unit 201, an information storage unit 202, a call setting message generation unit 203, a communication control unit 204, and a control unit 200.

The input interface unit 201 receives information from an information source such as a personal computer or the like from the information center device I.
C has an interface function for inputting notification information. The information storage unit 202 stores the input interface unit 2
Notification information input via the control unit 01 is stored in accordance with an instruction from the control unit 200.

When new notification information is stored in the information storage unit 202 or when the stored notification information is updated, the call setting message generation unit 203 transmits the notification information in accordance with an instruction from the control unit 200. To generate a call setup message for transmitting. The call setup message for transmitting the notification information is generated based on the call setup message specified in Recommendation Q.931. FIG. 4 shows TT
Fig. 3 shows the structure of a call setup message specified in C standard JT-Q931.

The communication control section 204 sends out the call setup message created by the call setup message generation section 203 to the public network INW according to the communication protocol specified by ISDN under the control of the control section 200.

Next, each of the base stations CS1 to CSn is configured as follows. FIG. 5 is a circuit block diagram showing the configuration. Each of the base stations CS1 to CSn includes a wireless unit 1 having an antenna 11, a modem unit 2, a TDMA unit 3, an interface unit 4, and a control unit 5.

That is, the radio carrier signals arriving from the mobile stations PS1 to PSm are received by the antenna 11 and then input to the receiving circuit 13 via the high frequency switch (SW) 12 of the radio unit 1. In the receiving circuit 13, the received radio carrier signal is mixed with a local oscillation signal generated from the synthesizer 14 and down-converted into a received intermediate frequency signal. The local oscillation frequency generated by the synthesizer 14 is specified by the control unit 5 according to the radio channel frequency. The wireless unit 1 has a reception electric field strength detector (RSSI) 16
Is provided. In this reception electric field strength detection unit 16,
The received electric field strength of the radio carrier signal arriving from the mobile stations PS1 to PSm is detected, and the detected value is notified to the control unit 5.

The reception intermediate frequency signal output from the reception circuit 13 is transmitted to a demodulation circuit (DEM) 2 of the modem unit 2.
1 is input. The demodulation circuit 21 digitally demodulates the received intermediate frequency signal, thereby reproducing the digital demodulated signal.

TDMA decoder 3 of TDMA unit 3
1 separates the digital demodulated signal for each reception time slot. Then, the voice data transmitted through the traffic channel is input to the interface unit 4. On the other hand, control data transmitted through the control channel and unlimited digital data transmitted through the traffic channel are input to the control unit 5.

The interface unit 4 has an ADPCM
(Adaptive Differential Pulse Code Modulation) A transcoder 41 and a line interface 42 are provided. The ADPCM transcoder 41 uses the TD
The audio data output from the MA decoder 31 is decoded. The line interface 42 performs call connection processing and data communication with the public network INW in accordance with an instruction from the control unit 5. As a result, the audio data decoded by the ADPCM transcoder 41 is transmitted to the public network INW.

On the other hand, digital communication signals of a plurality of channels arriving from the public network INW are transmitted to the line interface 42.
Respectively. If the digital communication signal is voice data, the ADPCM transcoder 4
At 1, the encoding process is performed and input to the TDMA encoder 32. On the other hand, control data such as a call setting message is input to the control unit 5.

The TDMA encoder 32 uses the ADPC
The digital audio data of each channel output from the M transcoder 41 is inserted into the transmission time slot specified by the control unit 5 and multiplexed. Modulation circuit (MO
D) 22 digitally modulates the transmission intermediate frequency signal with the multiplexed digital communication signal output from the TDMA encoder 32, and inputs the modulated transmission intermediate frequency signal to the transmission circuit 15. The transmission circuit 15 mixes the modulated transmission intermediate frequency signal with a local oscillation signal generated from the synthesizer 14, upconverts the mixed signal into a radio carrier frequency, and further amplifies the signal to a predetermined transmission power level. The radio carrier signal output from the transmission circuit 15 is transmitted from the antenna 11 to the mobile stations PS1 to PSm via the high frequency switch 12.

The control unit 5 includes, for example, a microcomputer as a main control unit.
In addition to the connection control function between the PSm and the public network INW, a function for realizing the information notification according to the present invention is provided. The functions are an incoming call form determination unit 51, a notification information reception control unit 52, and a notification information transmission control unit 53.

When the call setup message is received, the incoming call form determining means 51 determines whether the call setup message is for normal incoming call notification or not based on the first identification information included in the call setup message. It is determined whether it is for information transmission. For example, a calling number is used as the first identification information. That is, if the telephone number of the information center device IC has been inserted as the calling number, this call setup message is determined to be for transmitting notification information, and if the telephone number of another general subscriber has been inserted, this call It is determined that the setting message is for normal incoming call notification.

When the incoming call setting message is determined to be for the purpose of transmitting the notification information, the notification information receiving control means 52 determines the received call setting message from the specific information element of the call setting message. Extract notification information,
The extracted notification information is stored in the information storage unit 50.

For example, when the notification information is inserted at the destination subaddress in the call setup message, the notification information is extracted from the destination subaddress. When the notification information is inserted in the calling subaddress in the call setting message, the notification information is extracted from the calling subaddress. Similarly, when the notification information is inserted in the user / user information element or the facility information element in the call setup message, the notification information is extracted from these information elements.

The extracted notification information is stored in the information storage unit 50.
When the notification information is new information or update information, it is determined based on a flag or the like. If the notification information is new information, the notification information is stored in the information storage unit 50 as it is. If it is, overwrite the stored old information.

When new information is stored in the information storage unit 50 or when the stored notification information is updated, the notification information transmission control means 53 reads the notification information and sends it to the mobile stations PS1 to PSm. Send. The transmission is A
The paging channel (PCH) specified in the RIB standard RCR STD-28 is used. That is, when sending an incoming message over the paging channel,
The notification information is inserted into the information field of the incoming message. At this time, the second identification information is inserted to distinguish the transmission of the notification information from the normal incoming call. This second identification information usually includes a PHS P starting with “050” or “060”.
This is set by setting the first number of the S number to a number other than “0”.

On the other hand, the mobile stations PS1 to PSm are configured as follows. FIG. 6 is a circuit block diagram showing the configuration. Each of the mobile stations PS1 to PSm includes a wireless unit 6, a modem unit 7, a TDMA unit 8, a communication unit 9, and a control unit 10.

The radio carrier signals arriving from the base stations CS1 to CSn are received by an antenna 61 and then received by a receiving circuit 6 via a high-frequency switch (SW) 62 of the radio unit 6.
3 is input. In the receiving circuit 63, the received radio carrier signal is mixed with the local oscillation signal generated from the frequency synthesizer 64 and frequency-converted into a reception intermediate frequency signal or a reception baseband signal. The local oscillation frequency generated by the frequency synthesizer 64 is specified by the control unit 10. The wireless unit 6 has a reception field strength (RSSI) detector 66.
Is provided. In the RSSI detector 66, the received electric field strength of the radio carrier signals arriving from the base stations CS1 to CSn is detected, and the detected value is notified to the control unit 10 in order to judge whether the radio channel is empty.

The reception intermediate frequency signal or the reception baseband signal output from the reception circuit 63 is input to a digital demodulation unit (DEM) 71 of the modem unit 7.
The digital demodulation section 71 performs digital demodulation of the reception intermediate frequency signal or the reception baseband signal, thereby reproducing a digital communication signal.

The TDMA decoder 8 of the TDMA unit 8
1 extracts, from the digital communication signal output from the digital demodulation unit 71, a digital communication signal inserted into a time slot assigned to the own station according to an instruction of the control unit 10, and extracts the extracted digital communication signal. Input to the call unit 9. Call unit 9
Consists of an ADPCM transcoder 91 and a PCM codec 92. ADPCM transcoder 91 performs a decoding process of a digital communication signal. The PCM codec 92 converts the decoded digital call signal into an analog call signal. The analog call signal is amplified by a receiving amplifier (not shown) and then output from a speaker 93.

On the other hand, the transmission voice input to the microphone 94 is amplified by a transmission amplifier (not shown) in the communication unit 9 and then converted into a digital transmission signal by the PCM codec 92. Then, the digital transmission signal is subjected to an encoding process in the ADPCM transcoder 91 and then input to the TDMA unit 8. T
In the DMA encoder 82, the digital communication signal output from the ADPCM transcoder 91 is inserted into a time slot specified by the control unit 10 and input to the digital modulation unit (MOD) 72. The digital modulator 72 digitally modulates the high-frequency signal by the digital communication signal and outputs a modulated wave signal. The modulated wave signal is transmitted to the transmitting circuit 65 of the wireless unit 6.
Is input to

In the transmitting circuit 65, the modulated wave signal is mixed with the local oscillation signal generated from the frequency synthesizer 64, so that the control unit 10
The radio signal is up-converted to the designated radio channel frequency and further amplified to a predetermined transmission power level. The wireless carrier signal output from the transmission circuit 65 is transmitted from the antenna 61 via the high frequency switch 62.

The control unit 10 has, for example, a microcomputer as a main control section. The main control functions according to the present invention include an incoming call form determining means 101, a notification information reception control means 102, Output control means 103.

When the paging channel (PCH) is received, the incoming call form determining means 101 uses the second identification information included in the paging channel to determine whether the paging channel is a normal paging notification. Or for transmission of notification information. That is, if the first digit of the PS number of the paging channel is "0", the paging channel is determined to be a normal incoming call. If the number is other than "0", the paging channel is transmitted as notification information. Is determined to be

The notification information reception control means 102, when the new arrival type determination means 101 determines that the general paging channel is for the purpose of transmitting the notification information,
The notification information is extracted from the PS number area of the paging channel, and the extracted notification information is stored in the storage unit 110.

The notification information output control means 103 reads the notification information from the storage unit 110 and sends it to the liquid crystal display LCD 120 when the notification information arrives and when an information output instruction is input by a key operation of the user. Display. If the list of the notification information cannot be displayed, the notification information is scroll-displayed.

Next, the operation of the system configured as described above will be described. FIG. 13 is a diagram showing the sequence. Here, the information center device IC sends a new news report to the mobile stations PSi,.
Will be described as an example.

It is assumed that new news information is input to the information center device IC. Then, the information center apparatus IC starts the call connection by the communication control unit 204, generates a call setting message for transmitting the notification information in the call setting message generation unit 203, and transmits the call setting message for transmitting the notification information. It is transmitted to each of the base stations CS1 to CS5 constituting the paging area E1.

That is, the information center device IC reads the new information from the information storage unit 202 and inserts this information into the destination subaddress of the call setup message specified in ITU-T Rec. In addition, instead of the destination subaddress, the calling subaddress, user / user information element,
The facility information element may be used, and if the information amount of the notification information is too large to be completely inserted into the destination subaddress, the originating subaddress, the user / user information element, and the facility information element may be used simultaneously.

Further, the information element into which the notification information is inserted may be made different depending on the contract contents of the mobile station user. For example, the notification information for the unspecified mobile station user is inserted into the destination subaddress, the information for the specific mobile station user who has concluded the first contract is on the calling subaddress, and the second contract is concluded. Information for a specific mobile station user is inserted into a user information element, and information for a mobile station user who has a third contract is inserted into a facility information element.

In the called number area of the call setting message, for example, a number of a fictitious mobile station previously defined in association with the paging area E1 is inserted. If the mobile station existing in the paging area E1 to which information is to be notified is known, the number of the existing mobile station may be inserted. Further, the telephone number of the information center device IC indicating that it is a call setup message for transmitting notification information is inserted into the calling number area.

Now, each of the base stations CS1 to CS5 executes the incoming call control as follows. FIG. 10 is a flowchart showing the control procedure and control contents. That is,
When the call setting message is received in step 9a, it is determined in step 9b whether the received call setting message is for transmitting notification information or for normal incoming call notification. This determination is made based on whether or not the number inserted in the calling number area of the received call setting message belongs to the information center device IC. If it is a normal incoming call notification, a normal incoming call process is executed in step 9c.

On the other hand, if the received call setup message is for notification information transmission, the process proceeds to step 9d, where news information is extracted from the destination subaddress of the received call setup message, and this information is stored in step 9d.
The information is temporarily stored in the information storage unit 50 at e. When the news information is inserted in the originating subaddress, the user / user information element, or the facility information element, or when the news information is inserted in each of these information elements, the news information is inserted from the inserted information element. Extract.

When the extraction of the notification information and the storage in the information storage unit 50 are completed, the base station CS1 which is a predetermined representative among the base stations CS1 to CS5 is connected to the public network INW as shown in FIG. Execute call disconnection processing.

Thus, the news information of the information center device IC is transmitted to all the base stations CS1 to CS5 in the paging area E1 without forming a communication link on the public network INW.
It is transmitted without exception.

Upon receiving the new news information, the base stations CS1 to CS5 next transmit the news information to the mobile station P.
Control for notifying Si is executed. FIG. 11 is a flowchart showing the control procedure and control contents.

The base stations CS1 to CS5 execute step 10a
Monitor whether new notification information is stored in the information storage unit 50 or whether the storage information is updated. In this state, when new news information is stored as described above, the information storage unit 50 is set in step 10b at the time of transmitting the next general call channel.
From the newly stored news information in order,
This is inserted into the information field I of the paging channel (PCH) shown in FIG. Specifically, for example, news information is sequentially inserted into the area of the second to thirteenth numbers in the PS number area shown in FIG. As described above, the second identification information for identifying the normal incoming call and the transmission of the notification information, for example, a number other than “0” is inserted into the area of the first number.

Then, in step 10c, the base stations CS1 to CS5 transmit the incoming call message of the created paging channel to the mobile stations PSi,. In addition, the base stations CS1 to CS5 determine whether or not the remaining information that could not be transmitted by the above transmission remains in step 10d.
If it remains, the process proceeds to step 10e to wait for the next paging channel transmission timing.
Then, at the next paging channel transmission timing, the subsequent news information read from the information storage unit 50 is inserted into the information element I of the paging channel, and the incoming message of the paging channel is transmitted in step 10f. .. Are transmitted to the mobile stations PSi,. Thereafter, the processing of steps 10d to 10f is repeated until all the news information has been transmitted. In addition,
For example, an end command is inserted at the end of the notification information.

On the other hand, the mobile stations PSi,... Perform the reception and output control of the notification information as follows. FIG. 12 is a flowchart showing the control procedure and control contents. That is, the mobile stations PSi,... Monitor the arrival of the paging channel (PCH) in step 11a.
In step 1b, based on the first number of the PS number of the received incoming message, it is determined whether the incoming message is intended for normal incoming or for transmitting notification information. If it is a normal incoming call, the process proceeds to step 11c, where a well-known incoming call process is executed.

On the other hand, if the incoming message is intended to transmit notification information, the process proceeds to step 11d, where the notification information is extracted from the information field of the received incoming message, and the extracted information is extracted. Storage unit 1
10 is stored. Then, in a step 11e, it is determined whether or not there is a continuation of the information. This determination is made based on whether or not an end command is detected in the received information. If the end command is not detected, it is determined that there is a continuation.

If there is a continuation, the process shifts to step 11f to wait for the arrival of the next paging channel.
When the paging channel is received, news information is extracted from the received paging message of the paging channel and stored in the storage unit 110 in step 11g. Thereafter, the processing from step 11e to step 11g is repeated until all the news information is received.

Thus, from the base stations CS1 to CS5 to the mobile stations PSi,..., A radio communication link (TC
The notification information is broadcast without forming H).
When all the news information is received, step 11
h, for example, by generating a sound or vibration for notification information reception notification different from that of a normal incoming call to notify the user that the notification information has been received, and
Then, the latest news information just received is sequentially read out and scroll-displayed on the LCD 120. Thus, the mobile station user can know the latest news information regularly or suddenly at his or her mobile station.

As described above, in this embodiment, the information center device IC sends the base stations CS1 to CS5 constituting the PHS general call area E1 to the TTC standard JT-Q9.
31, the destination subaddress of the call setup message specified in
The notification information is broadcast by selectively using the calling subaddress, the user / user information element or the facility information element, and furthermore, each of the mobile stations PSi located in the paging area E1 from these base stations CS1 to CS5. ,... Are transmitted using an incoming message of a paging channel (PCH) defined in ARIB standard RCR STD-28, and this notification information is transmitted to the LCD 1.
20 is displayed.

.. From the information center device IC to each mobile station PSi,... Without forming an individual communication link for each mobile station and using the paging area E1 to broadcast news and the like. Information can be transmitted. For this reason, the information center device IC and the mobile stations PSi,.
Even if the system is connected via the public network INW, the information provider and the mobile station user can perform information notification and acquisition at low cost without being charged from the public network INW. In addition, even if the number of mobile station users to which information is provided increases, there is no need to worry about increasing the traffic of the public network INW, thereby preventing other subscribers from being adversely affected.

The present invention is not limited to the above embodiment. For example, in the above embodiment, the base station CS
1 to CS5 use the incoming message of the paging channel (PCH) to transmit the notification information to the mobile stations PS i,.
It is also possible to use a CCH) or a user-defined control channel (USCCH).

The broadcast channel slot configuration is as follows:
This is the same as the paging channel shown in FIG. When transmitting using this broadcast channel, for example, FIG.
The notification information may be inserted from the second octet to the sixth octet of the reserved area of the third system information notification message shown in FIG. FIG. 14 shows the slot configuration of the user-defined control channel. When transmitting the notification information using the user-defined control channel, the notification information may be inserted into the information field I which is currently unspecified.

In the mobile stations PSi,...
The notification information stored in 10 may be arbitrarily read and displayed by a key operation of the user. Further, as the output means of the notification information, in addition to the means for visually displaying the information on the LCD, a configuration may be employed in which the synthesized voice is output from the speaker using the voice synthesis means.

Further, while transmitting the notification information from the base stations CS1 to CSn to the mobile stations PS1 to PSm, the mobile stations PS1 to PSn are transmitted from the public network INW to the base stations CS1 to CSn.
If a normal incoming call to any of the Sm arrives, the busy process may be performed on the incoming call. However, the base stations CS1 to CSn store the incoming call in a queue, and A normal incoming call according to the incoming call may be made after the transmission of the information is completed. Also,
The transmission of the notification information may be temporarily interrupted, and the transmission of the notification information may be restarted after performing the normal incoming call processing.

In addition, the present invention also relates to a means for distinguishing a normal incoming call from the transmission of notification information, a transmission control procedure and control contents of the notification information, a type and configuration of a mobile communication system having a paging area, and the like. Various modifications can be made without departing from the spirit of the invention.

[0063]

As described in detail above, according to the present invention, notification information is transmitted from an information center apparatus to a plurality of base stations constituting a paging area by using a call setup message. , The notification information is transmitted to the mobile station by using a control channel such as a paging channel, a broadcast channel, and a user-defined control channel.

Therefore, according to the present invention, a call is not individually connected between the information center device and the mobile station,
In addition, notification information can be transmitted in a broadcast manner using the paging area, and as a result, mobile information can be notified to a large number of mobile station users at low cost without increasing traffic on the communication network. A communication system and a communication device thereof can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a mobile communication system according to the present invention.

FIG. 2 is a diagram showing a configuration example of a paging area of the system shown in FIG. 1;

FIG. 3 is a block diagram showing a functional configuration of an information center device in the system shown in FIG. 1;

FIG. 4 is a diagram showing a list of information elements of a call setup message.

FIG. 5 is a circuit block diagram showing a configuration of a base station in the system shown in FIG. 1;

6 is a circuit block diagram showing a configuration of a mobile station in the system shown in FIG.

FIG. 7 is a diagram showing slot configurations of a paging channel (PCH) and a broadcast channel (BCCH).

FIG. 8 is a diagram showing a format of an information field in a paging channel.

FIG. 9 is a diagram showing a format of an information field of a third system information broadcast message transmitted by a broadcast channel.

FIG. 10 is a flowchart showing an incoming call control procedure and its contents in the base station shown in FIG. 5;

11 is a flowchart showing a notification information transmission control procedure and its contents in the base station shown in FIG. 5;

12 is a flowchart showing a procedure for controlling reception and output of notification information in the mobile station shown in FIG. 6 and its contents.

FIG. 13 is a sequence diagram showing a notification information transmission operation in the system shown in FIG. 1;

FIG. 14 is a diagram showing a slot configuration of a user-defined control channel.

[Explanation of symbols]

 CS1 to CSn Base station PS1 to PSm Mobile station INW Public network IC Information center device E1, E2, E3 General call area 1, 6 Wireless unit 2, 7 Modem unit 3, 8 TDMA unit 4, 9 Interface unit 5 Base station control unit 10 Mobile station control unit 11, 61 Antenna 12, 62 High frequency switch (SW) 13, 63 Receiving circuit 14, 64 Synthesizer 15, 65 Transmitting circuit 16 , 66 ... Received field strength detector (RSSI) 21, 71 ... Demodulation circuit (DEM) 22, 72 ... Modulation circuit (MOD) 31, 81 ... TDMA decoder 32, 82 ... TDMA encoder 41, 91 ... ADPCM transcoder 42, 92: line interface 50: base station information storage unit 51, 101: incoming call form Setting means 52, 102 ... notification information reception control means 53 ... notification information transmission control means 103 ... notification information output control means 110 ... mobile station storage section 120 ... liquid crystal display (LCD) 200 ... information center apparatus control section 201 ... Input interface unit 202: Information storage unit of information center device 203: Call setting message generation unit 204: Communication control unit

Claims (9)

[Claims] 1. A plurality of base stations constituting a paging area, a mobile station connected to these base stations via a radio line, and a mobile station connected to the plurality of base stations via a communication network. A mobile communication system comprising: an information center device, wherein the information center device stores information to be broadcast to the mobile station, and a notification stored in the information storage device. Information, together with first identification information indicating that the notification of the information is intended, is inserted into a call setup message defined by the communication network, and the call setup message is transmitted to the paging area via the communication network. For transmitting to each of the base stations constituting
Each of the base stations, when a call setting message arrives from the information center device via the communication network, based on the first identification information inserted in the call setting message. First determining means for determining whether or not the call setting message is for information notification; and when the first determining means determines that the information notification is for information, Information extracting means for extracting the notification information from the call setting message and storing the notification information in a memory, the notification information stored in the memory, together with second identification information indicating that the notification of the information is intended, And a second information transmitting means for transmitting the signal to the mobile station by inserting it into a predetermined control channel defined between the mobile station, and the mobile station receives a control channel from the base station. In this case, based on the second identification information inserted in the control channel, a second determination unit for determining whether the control channel is intended for information notification, Information output means for extracting notification information from the arriving control channel and outputting the information to a user when the information notification is determined to be intended by the determination means. Communications system. 2. The first information transmitting means inserts notification information into at least one of a destination sub-address information element, a calling sub-address information element, a user-user information element, and a facility information element in a call setup message. The mobile communication system according to claim 1, wherein the mobile communication system transmits the data. 3. The mobile communication according to claim 1, wherein the second information transmitting means transmits the notification information using one of a paging channel, a broadcast channel, and a user-defined control channel. system. 4. A plurality of base stations constituting a paging area, a mobile station connected to these base stations via a radio line, and connected to the plurality of base stations via a communication network. And transmitting the notification information stored in the information center device to each base station constituting the paging area via a communication network, and then transmitting the notification information from these base stations via a radio line. What is claimed is: 1. A communication device used as said information center device in a mobile communication system having a function of transmitting to a station, comprising: information storage means for storing information to be broadcast to a mobile station; Is inserted into a call setup message defined by the communication network, together with identification information indicating that the notification of the information is intended, and the call setup message is sent via the communication network. Communication apparatus characterized by comprising an information transmitting means for transmitting to each base station constituting the area. 5. The information transmitting means inserts the notification information into at least one of a destination subaddress information element, a calling subaddress information element, a user / user information element, and a facility information element in a call setup message and transmits the information. The communication device according to claim 4, wherein 6. A plurality of base stations constituting a paging area, a mobile station connected to these base stations via a radio line, and connected to the plurality of base stations via a communication network. An information center device, wherein the notification information stored in the information center device is inserted into a call setup message defined by the communication network, and the call setup message constitutes the paging area via the communication network. A communication device used as the base station in a mobile communication system having a function of transmitting to each of the base stations after transmission to the mobile station via a wireless line from the base station, wherein the information center device When the call setting message arrives from the communication network via the communication network, the call setting message aims at information notification based on the predetermined identification information inserted in the call setting message. Determining means for determining whether or not the information is intended to be notified, and information extracting means for extracting notification information from the arriving call setting message and storing it in a memory when the information notification is determined to be a purpose. A communication device for transmitting the notification information stored in the memory to the mobile station via a predetermined control channel defined with the mobile station. 7. A plurality of base stations forming a paging area, a mobile station connected to these base stations via a radio line, and connected to the plurality of base stations via a communication network. And transmitting the notification information stored in the information center device to each base station constituting the paging area via a communication network, and then transmitting the notification information from these base stations via a radio line. A communication device used as the base station in a mobile communication system having a function of transmitting to a station, notification information storage means for storing notification information arriving from the information center device via the communication network in a memory, The notification information stored in the memory, together with identification information indicating that the notification of the information is intended, is inserted into a predetermined control channel defined between the mobile station and transmitted to the mobile station. Communication apparatus characterized by comprising a order information transmitting means. 8. The mobile communication system according to claim 7, wherein said information transmitting means transmits the notification information using one of a paging channel, a broadcast channel, and a user-defined control channel. 9. A plurality of base stations constituting a paging area, a mobile station connected to these base stations via a radio line, and connected to the plurality of base stations via a communication network. Information center device, and after transmitting the notification information stored in the information center device to each base station constituting the paging area via a communication network, the information notification from these base stations is intended. A communication device used as the mobile station in a mobile communication system having a function of transmitting to the mobile station using a predetermined control channel defined between the mobile station and identification information indicating the mobile station, When a control channel arrives from the base station, a determination is made based on the identification information inserted into the control channel to determine whether the control channel is for information notification. Means, and information output means for extracting notification information from the arriving control channel and outputting it to the user when the determination means determines that the information notification is intended. Communication device.