JP3892684B2 - Mobile communication system, mobile communication server, and mobile communication method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile communication system, a mobile communication server, and a mobile communication method for performing wireless communication between mobile communication terminals such as mobile phones, PDAs, and mobile devices.
[0002]
[Prior art]
Conventionally, as a system for performing wireless communication between communication terminals such as mobile phones, PDAs, and mobile devices, a communication signal from a transmission source is transferred to a transmission destination terminal via a transfer network including a wireless base station. It is common to do.
[0003]
In a conventional mobile communication system, the receiving terminal may not be able to receive radio waves depending on the operating environment of the receiving terminal. In this case, the receiving terminal cannot receive the radio waves at the transmitting terminal. A message to that effect is sent.
[0004]
[Problems to be solved by the invention]
However, since the transmitting side cannot recognize changes in various operating environments of the receiving terminal, it is difficult to accurately grasp the expected time for the receiving operating environment to recover.
[0005]
Therefore, the present invention aims to solve the above-described problems, and improves the convenience of the terminal user on the transmission side by notifying the transmission side terminal of information on the terminal operating environment on the reception side. An object of the present invention is to provide a mobile communication system, a mobile communication server, and a mobile communication method.
[0006]
[Means for Solving the Problems]
The mobile communication system, the mobile communication server, and the mobile communication method according to the present invention acquire management information related to the operating environment of the target terminal from the target terminal, store the acquired management information in management information storage means, The change prediction information related to the change predicted for is stored in the change prediction information storage means in association with each operating environment, and the management information of the target terminal is managed from the management information storage means in response to a transmission request signal from another communication terminal. , The operating environment of the target terminal is detected from the acquired management information, and the change prediction information associated with the operation environment included in the detected management information is extracted from the change prediction information accumulation unit, and extracted. Calculating a change in the operating environment of the target terminal based on the change prediction information, and providing the calculated result to the other communication terminal as information data; It is an butterfly.
[0007]
According to the present invention, when there is a transmission request signal for requesting establishment of communication with the target terminal from the communication terminal, the stored management information is stored when the target terminal of the communication destination is unreceivable or the like. It detects and extracts the change prediction information associated with the operation environment included in the management information, calculates the change of the operation environment based on the management information and the change prediction information, and sends this to other communication terminals It can be provided as information data. Thereby, for example, when communication from the communication terminal of the communication source to the target terminal of the communication destination is impossible, the user of the communication terminal of the communication source can grasp the change in the operating environment of the communication destination.
[0008]
In the above invention, processing for confirming whether or not communication is established with respect to each terminal is periodically performed to obtain management information of the terminal when communication is established, and the obtained management information and the management It is preferable to store the information in association with the time.
[0009]
In this case, the operating environment of each terminal can be periodically acquired, and the accumulated management information can be constantly updated. For example, when communication with the terminal becomes impossible, the latest management information is used. As a result, the change in the operating environment can be calculated using the management information immediately before the communication is disabled, and the change in the operating environment can be predicted with higher accuracy.
[0010]
In the above invention, it is preferable that the management information related to the operating environment includes information related to the position of the target terminal, and the change prediction information is set based on the position of the target terminal.
[0011]
In this case, a change in the operating environment can be calculated using the geographical conditions where the target terminal is located, the characteristics of the building, and the like, and more realistic change prediction can be performed.
[0012]
In the above invention, it is preferable that the management information regarding the operating environment includes information regarding the radio field intensity of the radio communication channel of the target terminal, and the change prediction information is set based on the radio field intensity of the target terminal.
[0013]
In this case, by using the radio wave intensity for the target terminal, the position of the target terminal can be specified in more detail, and a change in the operating environment can be predicted with higher accuracy.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
(Overall configuration of mobile communication system)
Hereinafter, embodiments of the mobile communication system of the present invention will be described. FIG. 1 is a block diagram schematically showing the overall configuration of the mobile communication system according to the present embodiment.
[0015]
As shown in the figure, the mobile communication system according to the present embodiment includes a transfer network 200 that relays wireless communication between a communication terminal 302 and a communication terminal 300, and a service platform 100 that provides a prediction management service for a communication environment. Composed.
[0016]
Communication terminals 300 and 302 are mobile communication terminals such as mobile phones, PHS, PDAs, and mobile computers. In this embodiment, the communication terminal 300 is a terminal used by a user on the reception side, and the communication terminal 302 is a terminal used by a user on the transmission side. In particular, in the present embodiment, when communication with the communication terminal 300 is not possible, the communication terminal 302 indicates a change in the operating environment of the communication terminal 300 calculated based on management information and change prediction information described later. Output means for outputting as data is provided.
[0017]
In this embodiment, the transfer network 200 includes wireless I / F units 202 and 206 and a transfer network control unit 204, and is mutually connected to the service platform 100 and the communication terminals 300 and 302 through a wireless communication line or a dedicated line. It has a function to connect.
[0018]
The wireless I / F units 202 and 206 establish communication with the communication terminals 300 and 302 via radio waves, and send communication signals with other wireless I / F units via the transfer control unit 204. Send and receive. In addition, the wireless I / F units 202 and 206 according to the present embodiment have a function of measuring the radio field intensity with respect to the communication terminal 300 or the communication terminal 302 with which wireless communication has been established. The transmitted radio wave intensity is transmitted to the service platform 100 via the transfer network control unit 204.
[0019]
The transfer network control unit 204 relays a communication signal between the wireless I / F units 202 and 206. In this embodiment, the transfer network control unit 204 analyzes the communication signal being relayed and extracts necessary information. It has the function to transfer to the 100 side. The transfer network control unit 204 has a function of identifying the position of the communication terminal 300 or 302 connected to each wireless I / F unit by identifying the wireless I / F unit 202 or 206. Yes.
[0020]
In the present embodiment, the service platform 100 includes a user management server 104, a location information management server 102, and a service management server 106, and has a function of connecting to the transfer network 200. FIG. 2 is a block diagram showing the internal structure of the service platform 100 in detail.
[0021]
As shown in the figure, the user management server 104 transfers the information transferred from the transfer network control unit 204 to the location information management server 102 and the service management server 106 and also transmits information data notified to the communication terminal. Is to be generated. Specifically, the user management server 104 includes a management information acquisition unit 104a that acquires management information transferred from the transfer network control unit 204, a data transmission / reception unit 104b that transmits and receives data to and from other servers, Arithmetic processing means 104c for calculating the required recovery time, notification means 104d for notifying the calculated recovery time as information data, and communication monitoring means 104c.
[0022]
The management information acquisition unit 104a acquires management information regarding the operating environment of the target terminal from the target terminal. In this embodiment, the management information acquisition unit 104a periodically transmits a confirmation signal to all communication terminals via the transfer network 200. Management information such as position information and radio wave intensity of each communication terminal is acquired. The acquired management information is sent to the location information management server 102 via the data transmitting / receiving units 104b and 102c.
[0023]
The arithmetic processing unit 104c calculates a change in the operating environment of the target terminal based on the change prediction information extracted from the database B500, and in this embodiment, the change prediction information sent from the service management server 106 and Based on the management information transmitted from the location information management server 102, the expected recovery time is calculated. This calculated expected recovery time is sent to the notification means 104d.
[0024]
The notification unit 104d provides information data such as the expected recovery time to the communication terminal 302 on the transmission side via the transfer network 200. The provision of information data such as the expected recovery time may be provided by voice or may be provided by character data, for example.
[0025]
The communication monitoring unit 104e monitors communication between communication terminals through the transfer network control unit 204, and grasps that communication between communication terminals is impossible by notification from the transfer network control unit 204. And instruct the start of the forecast management service. When starting this prediction management service, first, the identification information of the communication terminal that has become unable to communicate is sent to the location information management server 102 to instruct the detection of the latest management information of the communication terminal. The service management server 106 is instructed to extract change prediction information based on the management information acquired from the location information management server 102.
[0026]
The location information management server 102 manages the management information of each communication terminal, and is connected to the database A400 that stores the management information. Specifically, the location information management server 102 includes a database search unit 102a, a management information registration unit 102b, and a data transmission / reception unit 102c.
[0027]
The database A400 is management information storage means for storing the management information acquired by the management information acquisition unit 104a. For example, the database A400 is a data group related to the operating environment managed for each contractor of the communication terminal. Information is stored in association with the time when the management information is acquired.
[0028]
Here, the data group stored in the database A400 is, for example, as shown in the table T400 shown in FIG. 3A, management information of each communication terminal (information on the location where each communication terminal is located), This is associated with the time when the information about the place is acquired. In addition, the management information in the present embodiment includes cell information of each communication terminal, radio wave intensity, and the like.
[0029]
The database search unit 102 searches the management information in the database A 400 in response to a request from the service management server 106, and returns the search result to the service management server 106 and the user management server 104 through the data transmission / reception unit 102c. .
[0030]
The management information registration unit 102b registers management information of each communication terminal periodically acquired by the user management server 104 in the database A400. In the present embodiment, the management information registration unit 102b accumulates map data relating to the topography, buildings, facilities, etc. of each region (area where each wireless I / F unit is set), and the acquired management It has a function of mapping with map data based on position information and radio wave intensity included in the information, predicting a location where each communication terminal is located, and adding it to management information.
[0031]
The service management server 105 is connected to the database B500, manages data in the database B500, and includes a change prediction information extraction unit 106a and a data transmission / reception unit 106c.
[0032]
The database B500 is change prediction information storage means for storing change prediction information related to changes predicted for each operating environment in association with each operating environment. For example, as shown in a table T500 shown in FIG. As the prediction information, a recovery time required for each location is accumulated. This required recovery time is the time required to recover after communication is not established, and is the time required empirically and statistically for each terrain, building, facility, etc. of each place. Further, this recovery time may be obtained by accumulating and analyzing individual behavior patterns and the like.
[0033]
The change prediction information extraction unit 106a acquires management information from the location information management server 102 in response to a request from the communication monitoring unit 104e, searches the database B500 based on the acquired management information, and extracts change prediction information. It is. The extracted change prediction information is transmitted to the arithmetic processing unit 104c via the data transmitting / receiving unit 106c and the data transmitting / receiving unit 104c.
[0034]
(Mobile communication method)
The mobile communication method by the mobile communication system having the above configuration is according to the following procedure. FIG. 4 is a sequence diagram showing a procedure of the mobile communication method according to the present embodiment. Here, it is assumed that the management information of each communication terminal 300 and 302 has already been stored in the database A400, and the last management information of the communication terminal 300 is time 11 as shown in FIG. It is assumed that it is a place ΔΔ department store at 00.
[0035]
Now, communication is going to be started from the communication terminal 302 on the transmission side to the communication terminal 300 on the reception side, a transmission request is transmitted from the communication terminal 302 to the transfer control unit 204 (S101 to S103), and the transfer control unit An incoming call request is made to the communication terminal 300 via S204 (S104). At this time, it is assumed that communication terminal 300 is located in the ΔΔ department store and cannot receive radio waves and has not responded (S305). Here, it is assumed that a transmission request is made from the communication terminal 302 at time 11:40.
[0036]
The wireless I / F unit 202 confirms that the communication terminal 300 is not responding (S106), and notifies the transfer network control unit 204 that it is not responding (S107). The communication monitoring unit 104e receives the notification indicating that there is no response (S108), and inquires the location information management server 102 to identify the start of the predicted management service (identification information of the communication terminal that has not responded). And current time information (time 11:40) is sent (S109).
[0037]
The database search unit 102a acquires the communication terminal identifier (S110), searches the database A400 based on the communication terminal identifier (S111), and manages the communication terminal 300 management information (latest location information (ΔΔ department store) and time information (11). : 00)) is detected and notified to the service management server 106 (S112). At this time, the database search unit 102a also sends the detected time information to the arithmetic processing unit 104c.
[0038]
In response to the service start instruction from the communication monitoring unit 104e, the service management server 106 acquires management information from the location information management server 102, searches the database B500 (S114), and extracts the recovery time required (S115). Here, the recovery time (1 hour) required for the place (ΔΔ department store) is extracted from the table T500. The extracted recovery time is notified to the user management server 104 (S116).
[0039]
In the arithmetic processing means 104c, the management information (here, time information (11:00)) acquired from the location information management server 102, the recovery time required (1 hour) acquired from the service management server 106, and the current time (11 : 40) and the expected recovery time is calculated. That is, since 40 minutes have passed since the communication terminal 300 was located in the ΔΔ department store and the recovery time required is 1 hour, it is calculated that the communication terminal 300 recovers in the next 20 minutes.
[0040]
The calculated expected recovery time is provided as information data to the communication terminal 302 as the transmission source from the notification means 104d via the transfer control network 204 and the wireless I / F unit 206 (S118 and S119). By 302, it is output as voice or character data.
[0041]
(Operational effect of mobile communication system and method)
According to the mobile communication system and method according to the present embodiment described above, the management information stored in the database A400 is detected when communication with the communication terminal 300 that is the target terminal is disabled, and the management information Change prediction information associated with the operation environment included in the database B500 is extracted from the database B500, and a change in the operation environment is calculated based on the management information and the change prediction information. Can be provided. Thereby, for example, the user of the communication terminal 302 on the transmission side can grasp changes in the operating environment of the communication terminal 300 on the reception side, for example, the recovery time required and the expected recovery time.
[0042]
In the present embodiment, the communication monitoring unit 104e periodically performs processing for confirming whether communication is established with respect to each communication terminal, and acquires management information of the communication terminal when communication is established. Since the acquired management information is associated with the time when the management information is acquired and stored in the database A400, for example, when communication with the communication terminal is disabled, the latest management information is used. The recovery time required can be calculated using the management information immediately before the communication is disabled, and the expected recovery time can be performed with higher accuracy.
[0043]
Further, in the present embodiment, the management information stored in the database A400 includes information regarding the position of each communication terminal, and the recovery time is set based on the position of the communication terminal, so the communication terminal is located. The change in the operating environment can be calculated using the geographical conditions, the characteristics of the building, etc., and a more realistic change prediction can be performed.
[0044]
In particular, in the present embodiment, the management information stored in the database A400 includes information regarding the radio field intensity of the radio communication channel of the communication terminal, and the position of each communication terminal is specified based on this radio field intensity. The position can be specified in more detail, and the required recovery time can be calculated with higher accuracy.
[0045]
【The invention's effect】
As described above, according to the mobile communication system, the mobile communication server, and the mobile communication method of the present invention, information on the terminal operating environment on the receiving side is notified to the terminal on the transmitting side. Convenience can be improved.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an overall configuration of a wireless communication system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing in detail an internal structure of a service platform 100 according to the embodiment.
FIG. 3 is a table showing tables stored in databases A and B according to the embodiment, (a) shows a table T400 stored in database A, and (b) shows a table T500 stored in database B. Indicates.
FIG. 4 is a sequence diagram showing a procedure of the mobile communication method according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 ... Service platform 102 ... Location information management server 104 ... User management server 106 ... Service management server 200 ... Transfer network 202, 206 ... Wireless I / F unit 204 ... Transfer network control unit 300, 302 ... Communication terminal 400 ... Database A
500 ... Database B

Claims (6)

For each location identifier that identifies the terrain, building, or facility, the recovery time required empirically or statistically estimated that the target terminal needs to be able to receive it again from a state where it cannot temporarily receive radio waves. a first storage means for storing the first storage information to associate,
First acquisition means for periodically acquiring the position identifier indicating the terrain, building or facility existing at the position of the target terminal;
A second storage unit that stores second storage information that associates the target terminal identifier for identifying the target terminal, the acquired location identifier, and the time when the acquisition unit acquires the location identifier ;
For the target terminal in response to a request for communication from another communication terminal, from the second storage information, and detecting means for detecting said location identifier associated with the target terminal identifier,
Extraction means for extracting the recovery time required associated with the detected location identifier from the first accumulated information ;
Based on the extracted recovery time required, the time when the acquisition unit acquires the location identifier, and the current time, recovery indicating the time estimated to be required until communication with the target terminal is possible A calculation means for calculating the expected time ;
A mobile communication system, comprising: providing means for providing the estimated recovery time to the other communication terminal. Second acquisition means for acquiring information on radio field intensity of the wireless communication channel of the target terminal ;
The first acquisition unit according to claim 1, wherein the first acquisition unit determines the position of the target terminal based on the information on the radio wave intensity, and acquires the position identifier from the determined position . Mobile communication system. For each location identifier that identifies the terrain, building, or facility, the recovery time required empirically or statistically estimated that the target terminal needs to be able to receive it again from a state where it cannot temporarily receive radio waves. a first storage means for storing the first storage information to associate,
First acquisition means for periodically acquiring the position identifier indicating the terrain, building or facility existing at the place where the target terminal is located;
A second storage unit that stores second storage information that associates the target terminal identifier for identifying the target terminal, the acquired location identifier, and the time when the acquisition unit acquires the location identifier ;
For the target terminal in response to a request for communication from another communication terminal, from the second storage information, and detecting means for detecting said location identifier associated with the target terminal identifier,
Extraction means for extracting the recovery time required associated with the detected location identifier from the first accumulated information ;
Based on the extracted recovery time required, the time when the acquisition unit acquires the location identifier, and the current time, recovery indicating the time estimated to be required until communication with the target terminal is possible A calculation means for calculating the expected time ;
A mobile communication server comprising providing means for providing the estimated recovery time to the other communication terminal. Second acquisition means for acquiring information on radio field intensity of the wireless communication channel of the target terminal ;
The first acquisition means determines the position of the target terminal based on the information on the radio field intensity, and acquires the position identifier from the determined position . Mobile communication server. For each location identifier that identifies the terrain, building, or facility, the recovery time required empirically or statistically estimated that the target terminal needs to be able to receive it again from a state where it cannot temporarily receive radio waves. a step of storing the first stored information to associate,
Periodically acquiring the location identifier indicating the terrain, building or facility present at the location where the target terminal is located;
Storing second storage information that associates the target terminal identifier for identifying the target terminal, the acquired location identifier, and the time when the acquisition means acquires the location identifier ;
For the target terminal in response to a request for communication from another communication terminal, from the second storage information, a step of detecting the location identifier associated with the target terminal identifier,
Extracting a recovery time required associated with the detected location identifier from the first accumulated information ;
Based on the extracted recovery time required, the time when the acquisition unit acquires the location identifier, and the current time, recovery indicating the time estimated to be required until communication with the target terminal is possible Calculating the expected time ;
Providing the expected recovery time to the other communication terminal. Further comprising obtaining information on the radio field intensity of the wireless communication channel of the target terminal ;
The step of periodically acquiring the position identifier determines the position of the target terminal based on information on the radio field intensity, and acquires the position identifier from the determined position. 6. The mobile communication method according to 5.

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