JPH1169407A - Radio base station device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio base station device capable of preventing the updating of data without a provision request from a mobile communication terminal. SOLUTION: A base station file updating time storage area 30b is an area for storing the time at which file data stored in a provision information storage area 30a are updated in a server. A server file updating time storage area 30c is the area for storing the time at which the respective file data stored in the server are updated in the server. A data updating control means 50a judges whether or not it is required to update the requested file data in the case that the provision of the file data is requested from an information communication terminal based on the data of the base station file updating time storage area 30b and the data of the server file updating time storage area 30c, down-loads the file data from the server corresponding to the judged result and executes updating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to, for example, PHS
(Personal Handyphone System), DCS18
00 (Digital Cellular System at 1800MHz), PC
The present invention relates to a microcell-type wireless base station device used in S (Personal Communication System).

[0002]

2. Description of the Related Art Recently, PHS (or DCS1800)
Various types of information such as regional information are stored in advance in a microcell type radio base station device used in a mobile communication system having a communication function through a digital radio line. Development of a system for providing a terminal (hereinafter referred to as an information communication terminal) is being promoted by the inventors. FIG. 8 is a diagram showing a schematic configuration of this system.

In this system, a radio base station apparatus CS
Can provide the latest information to the information communication terminal PS requesting the information.
Information is periodically downloaded from X and a server SA connected via a public network, and the stored information is updated to the latest one.

However, in such a system,
Even if the wireless base station apparatus CS periodically downloads information from the server SA and updates the information, there is no request to provide the updated information from the information communication terminal PS, and the next information is provided without providing the updated information. There is a possibility that regular updates will be made.

[0005] Such unnecessary updating of information causes an unnecessary line usage fee between the server SA and the radio base station device CS. The burden is on the operator operating the system.

[0006]

In a conventional radio base station apparatus, even if information is periodically downloaded from a server and updated, a mobile communication terminal (information communication terminal) is not always required.
Since there is a possibility that there is no need to provide the updated information, there is a problem that the line usage fee required for downloading is wasted.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and it is possible to prevent a mobile communication terminal from updating information that is not requested to be provided, thereby reducing a line usage fee required for information update. It is intended to provide a station device.

[0008]

In order to achieve the above object, a radio base station apparatus according to the present invention connects a mobile communication terminal connected via a radio line to a public network. Receiving the data from the first memory means connected via the network, storing the data in its own second memory means, and providing the data stored in the second memory means via a wireless line in response to a request from the mobile communication terminal A mobile base station device that, when requested to provide data from a mobile communication terminal, determines whether it is necessary to update data requested by the mobile communication terminal among data stored in the second memory means. A data determining unit for determining whether the mobile communication terminal is required to update the data.
And a data updating means for updating the data of the memory means.

[0009] In the radio base station apparatus having the above configuration, when there is a data provision request from the mobile communication terminal, the necessity of updating the requested data is determined, and the first memory means is determined in accordance with the determination result. The data requested by the mobile communication terminal is read out to update the data in the second memory means.

[0010] Therefore, according to the radio base station apparatus having the above configuration, the data stored in its own station is updated in response to the data provision request of the mobile communication terminal. Update of data without data can be prevented.

Further, in the present invention, the data determining means includes:
First update time storage means for storing the update time of the data stored in the first memory means, and the time at which the data stored in the second memory means is updated in the first memory means. The update time stored in the second update time storage means, the update time stored in the first update time storage means, and the update time stored in the second update time storage means are compared and stored in the second memory means. Data updating necessity determining means for determining whether or not the data to be updated needs to be updated.

[0012] In the radio base station apparatus having the above configuration, the update time of the data stored in the first memory means and the second time of the own station are determined.
The update time of the data stored in the memory means is stored, and when there is a data provision request from the mobile communication terminal, the two update times corresponding to the requested data are compared and the update time is updated. The necessity is determined.

Therefore, according to the radio base station apparatus having the above configuration, it is determined whether or not the data requested by the mobile communication terminal has been updated in the first memory means. Since the updated data is performed, it is possible to accurately determine the necessity of the data update and prevent the update of the data that is not requested to be provided from the mobile communication terminal.

Further, according to the present invention, the data update means determines that the data determination means needs to be updated,
When the data requested by the mobile communication terminal is read from the first memory means, the data of the update time of the data stored in the first memory means is also read and the data recorded in the first update time storage means Is updated.

In the radio base station apparatus having this configuration, when data requested by the mobile communication terminal is read from the first memory means, the data at the update time of the data stored in the first memory means is also read. ing.

Therefore, according to the radio base station apparatus having the above configuration, every time the data is updated, the data of the update time of the other data stored in the first memory means can be acquired. The data recorded in the update time storage means (information on the update time of the data stored in the first memory means) is out of date, and it is erroneously determined that the updated data is not actually updated. Can be prevented.

Still further, according to the present invention, when a new update is not performed even if a preset time has elapsed since the data recorded in the first update time storage means is updated, the first update is performed. The data of the update time of the data stored in the memory means is read and the data recorded in the first update time storage means is updated.

Therefore, according to the radio base station apparatus having the above configuration, even if the radio base station apparatus does not frequently access to request data provision, the first update time is stored after the preset time has elapsed. The update time data of the first memory means recorded in the means is updated. For this reason, based on the data of the old update time, the data that is actually updated may be erroneously determined as not being updated, and the old data may be provided to the mobile communication terminal. Can be prevented.

Further, in the present invention, the data determining means includes:
Clock means for measuring time, expiration date storage means for storing the expiration date of data stored in the second memory means, expiration date stored in the expiration date storage means, and time measured by the clock means. And a data update necessity determining means for determining whether or not the data stored in the second memory means needs to be updated.

In the radio base station apparatus having the above configuration, the expiration date of the data stored in the second memory means is stored, and when a data provision request is issued from the mobile communication terminal, the requested data is stored in the second memory means. The expiration date is compared with the time measured by the clock means to determine the necessity of updating.

Therefore, according to the radio base station apparatus having the above configuration, it is determined whether or not the data requested by the mobile communication terminal has been updated in the first memory means. Since the updated data is performed, it is possible to accurately determine the necessity of the data update and prevent the update of the data that is not requested to be provided from the mobile communication terminal.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of a radio base station apparatus according to a first embodiment of the present invention.
CS1800 base station device or PC in USA
S base station apparatus is assumed. The configuration of the system is the same as that of FIG.

This radio base station apparatus CS includes a radio line communication control unit 10 having an antenna 1, a wire line communication control unit 20, a storage unit 30, a clock unit 40, and a main control unit 50. .

The radio communication control unit 10 is controlled by a main control unit 50, which will be described later, and establishes a digital radio communication link with the information communication terminal PS via the antenna 1. The wireless communication control unit 10 transmits and receives various digital data including audio data to and from the information communication terminal PS via the digital wireless communication link.

The wire line communication control unit 20 includes a main control unit 50
And a digital communication line connected to a public network. Then, the wired line communication control unit 20
Transmits and receives various digital data, including voice data, to and from a public network via the digital wireless communication link.

The storage unit 30 uses a semiconductor memory, such as a ROM or a RAM, as a storage medium. The storage medium stores a control program of the main control unit 50 and various control data, and also provides a provided information storage area. 30a, a base station file update time storage area 30b, a server file update time storage area 30c, and a table update time storage area 30d.

The provided information storage area 30a stores information (hereinafter, referred to as base station data) to be provided to the information communication terminal PS through the above-described radio line communication control unit 10. This base station data is usually transmitted from the server SA on the public network to the wired line communication control unit 20 under the control of the main control unit 50.
The data is downloaded through the Internet, and is composed of a plurality of file data in HTML (Hyper Text Markup Language) format or the like.

Then, for example, information (for example, a timetable of railroads and buses, peripheral maps, commercial advertisements), and wide-area information such as news and weather forecasts, which are closely related to the area where the radio base station apparatus CS is installed, are provided. The data is classified and stored as one file data.

Base station file update time storage area 30b
Is an area for storing the time at which the file data stored in the provision information storage area 30a is updated (or registered) in the server SA. As shown in FIG. 2, a table storing each file name corresponding to the update time is stored. Is done.

Server file update time storage area 30c
Is an area for storing the time at which each file data stored in the server SA is updated (or registered) in the server SA. The base station file update time storage area 30b
2, a table is stored in which each file name is associated with an update time.

The table update time storage area 30d stores the last update time of the update time table stored in the server file update time storage area 30c.
The clock unit 40 measures the time, and notifies the control unit 50 of the current time.

The main control unit 50 includes, for example, a microcomputer, and controls the respective units of the base station apparatus CS in accordance with the type of communication (call or data communication).

The main control unit 50 also transmits information (base station data) stored in the normal communication and the own station to the information communication terminal PS.
In addition to a control function for transmitting data to the network and a function for performing control related to handover, a data update control unit 50a and a table update control unit 50b are provided as new control functions.

The data update control means 50a determines whether it is necessary to update the requested file data when the information communication terminal PS requests the provision of base station data (file data). The determination is made based on the data in the file update time storage area 30b and the data in the server file update time storage area 30c. Then, the file data is downloaded from the server SA and updated according to the determination result.

The table update control means 50b compares the time stored in the table update time storage area 30d with the current time, and compares the time stored in the server file update time storage area 3d.
It is determined whether or not the table 0c needs to be updated.
Then, according to this determination result, the server SA downloads the data at the time when the file data stored in the server SA is updated by the server SA, and updates the table in the server file update time storage area 30c.

Next, with reference to FIG. 3, the operation of the radio base station apparatus CS having the above configuration when a request for providing base station data (file data) is made from the information communication terminal PS will be described.

First, the radio base station apparatus CS
Monitors the signal received by the wireless line communication control unit 10,
It is determined whether or not the received signal includes data indicating a request for providing base station data from the information communication terminal PS (step 3a). Here, if the above request is received from the information communication terminal PS, the flow shifts to the download processing in step 3b, and if not, the flow shifts to step 3c.

Step 3c comprises a table update control means 5
0b compares the current time notified from the clock unit 40 with the time stored in the table update time storage area 30d. Then, it is determined whether or not the current time has passed a predetermined time or more from the time stored in the table update time storage area 30d. Here, if the predetermined time has elapsed, the process proceeds to step 3d, and if not, the process returns to step 3a.

In step 3d, the table update control means 50b controls the wired line communication control unit 20 to update the time at which each file data stored in the server SA is updated by the server SA on the public network. Download the data.

Then, in step 3e, the table update control means 50b updates the update time data stored in the server file update time storage area 30c to the update time data downloaded in step 3d. Then, control goes to a step 3f.

In step 3f, the table update control means 50b updates the time data stored in the table update time storage area 30d to the current time notified from the clock unit 40, and shifts to step 3a again.

On the other hand, when there is a request for providing base station data from the information communication terminal PS and the process proceeds to step 3b,
The download processing of the flowchart shown in FIG. 4 is executed. In this process, first, in step 4a, the main control unit 50 controls the wireless communication control unit 10 to receive the file name of the data to be downloaded from the information communication terminal PS, and proceeds to step 4b. In the following description, a file name received from the information communication terminal PS is referred to as a requested file name.

In step 4b, the data update control means 5
0a is the update time of the base station file update time storage area 30b corresponding to the requested file name, and the server file update time storage area 30c corresponding to the file name.
Compare with the update time of.

As a result of the comparison, the update time of the base station file update time storage area 30b corresponding to the requested file name is stored in the server file update time storage area 30c.
If it is the same as the update time, that is, if the base station data in the provision information storage area 30a corresponding to the requested file name is the latest data that is the same as the data stored in the server SA, the process proceeds to step 4c. And step 4c
Then, the data update control means 50a reads out the base station data of the requested file name from the provided information storage area 30a, controls the wireless communication control unit 10, and transmits it to the information communication terminal PS. Then, control goes to a step 4h.

On the other hand, as a result of the comparison, when the update time of the base station file update time storage area 30b corresponding to the requested file name is earlier than the update time of the server file update time storage area 30c, The base station data in the provision information storage area 30a corresponding to
If it has been newly updated in the server SA, the process proceeds to step 4d.

In step 4d, the data update control means 5
0a controls the wired line communication control unit 20 to download data corresponding to the requested file name from the server SA on the public network. Then, while recording and updating the downloaded data in the provision information storage area 30a,
By controlling the wireless communication control unit 10, the information communication terminal PS
And the process proceeds to step 4e.

In step 4e, the table update control means 50b controls the wired line communication control unit 20 to update the time when each file data stored in the server SA is updated by the server SA from the server SA on the public network. Download the data. Then, the update time data stored in the server file update time storage area 30c is updated to the downloaded update time data.
Shift to f.

In step 4f, the data update control means 5
0a updates the update time of the base station file update time storage area 30b corresponding to the requested file name to the update time obtained by the download in step 4e.

In step 4g, the table update control means 50b updates the time data stored in the table update time storage area 30d to the current time notified by the clock unit 40, and proceeds to step 4h.

In step 4h, the control unit 50 monitors the signal received by the radio line communication control unit 10, and determines whether or not the signal includes data indicating that the provision of information is to be terminated. Then, when the data is included from the information communication terminal PS, the above download processing is terminated, and the process returns to step 3a. On the other hand, if the data is not included, the process returns to step 4a,
Continue the download process.

As described above, in the radio base station apparatus CS having the above configuration, the data (base station data) stored in the own station is stored.
And the update time of each file of the data stored in the server SA are stored. If the data requested by the information communication terminal PS is determined to be updated in the server SA by comparing the update times, the server SA determines that the data communication terminal PS has updated the data.
Is downloaded and provided to the information communication terminal PS, and the old data stored in the own station is updated.

Therefore, the radio base station apparatus C having the above configuration
According to S, the data stored in the own station is updated in response to a request from the information communication terminal PS, so that updating of data without a request for provision from the information communication terminal PS can be prevented.

According to the present invention, when downloading data requested by the information communication terminal PS from the server SA,
The update time data of the data stored in the server SA is also downloaded. Therefore, it is possible to prevent the update time data recorded in the server file update time storage area 30c from becoming outdated and erroneously determining that the file data that has been actually updated has not been updated. Further, since the update time data is downloaded together with the data requested by the information communication terminal PS, the burden of the line usage fee required for downloading the update time data can be minimized.

Further, according to the present invention, for example, when the frequency of access requesting the provision of data is low and there is little opportunity to download data from the server SA, the update time of the data stored in the server SA is periodically updated. I try to download data.

For this reason, even in a wireless base station apparatus that requires less access to request data provision, the server S
Since the data at the update time in A is not updated, it is possible to prevent the data stored in the own station from being erroneously determined to be the latest data and providing outdated data to the information communication terminal PS. .

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the case where the server SA stores the update time data for each file has been described. However, the server SA
As described above, the present inventors have considered not only a form in which the update time is accumulated for each file, but also a form in which the expiration date of data is set for each file.

The present invention can be applied to a server SA 'in which the expiration date is set in each file. Hereinafter, as a second embodiment, a radio base station device CS corresponding to the above-described server SA 'will be described. FIG. 5 is a circuit block diagram showing the configuration.
The same components as those of the wireless base station device CS of the first embodiment shown in FIG.

The radio base station apparatus CS includes a radio line communication control unit 10 having an antenna 1 and a wire line communication control unit 20.
, A storage unit 31, a clock unit 40, and a main control unit 51.

The radio line communication control section 10 is controlled by a main control section 51 described later, and establishes a digital radio communication link with the information communication terminal PS via the antenna 1. The wireless communication control unit 10 transmits and receives various digital data including audio data to and from the information communication terminal PS via the digital wireless communication link.

The wire line communication control unit 20 includes a main control unit 51
And a digital communication line connected to a public network. Then, the wired line communication control unit 20
Transmits and receives various digital data, including voice data, to and from a public network via the digital wireless communication link.

The storage unit 31 uses a semiconductor memory such as a ROM or a RAM as a storage medium. The storage medium stores a control program of the main control unit 51 and various control data, and also provides a provided information storage area. 31a and an expiration date storage area 31b.

The provided information storage area 31a, like the provided information storage area 30a, stores the wireless communication control unit 1
0, base station data to be provided to the information communication terminal PS.

The expiration date storage area 31b is an area for storing the expiration date of the file data stored in the provided information storage area 31a. As shown in FIG. 6, a table in which each file name corresponds to the above expiration date is stored. Is done.

The clock section 40 measures the time, and notifies the control section 51 of the current time. The main control unit 51 includes, for example, a microcomputer and controls each unit of the above-described wireless base station device CS in accordance with the type of communication (call or data communication).

The main control unit 51 also transmits information (base station data) stored in the normal communication and the own station to the information communication terminal PS.
In addition to the control function for transmitting data to the network and the function for controlling handover, a data update control unit 51a is provided as a new control function.

The data update control means 51a determines whether or not the requested file data needs to be updated when the information communication terminal PS requests the provision of base station data (file data). The determination is made based on the current time information notified from 40 and the expiration date data stored in the expiration date storage area 31b.

Then, the file data and the expiration date data corresponding to the file data are downloaded from the server SA in accordance with the result of the determination, and the provided information storage area 31a and the expiration date storage area 31b, respectively.
Update the corresponding data of.

Next, with reference to the flowchart shown in FIG. 7, the operation of the radio base station apparatus CS having the above configuration when there is a request to provide base station data (file data) from the information communication terminal PS will be described. .

First, when the radio base station apparatus CS receives the provision request, in step 7a, the main control section 51 controls the radio communication control section 10 so that the information communication terminal PS
, The file name of the data to be downloaded is received, and the process proceeds to step 7b.

In the following description, the information communication terminal PS
Is referred to as a requested file name. In step 7b, the data update control means 51a
Expiration date storage area 31 corresponding to the request file name
The expiration date of b is compared with the current time information notified from the clock unit 40.

As a result of this comparison, the expiration date of the expiration date storage area 31b corresponding to the requested file name is later than the current time notified from the clock unit 40 (within the expiration date).
In other words, if the base station data in the provided information storage area 31a corresponding to the requested file name is the same as the latest data stored in the server SA, the process proceeds to step 7c. Then, in step 7c, the base station data of the requested file name is read out from the provided information storage area 31a, and the wireless communication control unit 10 is controlled to transmit the data to the information communication terminal PS. Then, control goes to a step 7f.

On the other hand, as a result of the comparison, when the expiration date of the provided information storage area 31b corresponding to the requested file name is earlier (out of the expiration date) than the current time notified from the clock unit 40, that is, the expiration date Has expired, and if the base station data in the provision information storage area 31a corresponding to the requested file name has been newly updated in the server SA, the process proceeds to step 7d.

In step 7d, the data update control means 5
1a controls the wire line communication control unit 20 to download data corresponding to the requested file name from the server SA on the public network. Then, while recording and updating the downloaded data in the provision information storage area 31a,
By controlling the wireless communication control unit 10, the information communication terminal PS
And the process proceeds to step 7e.

At step 7e, the data update control means 5
1a controls the wired line communication control unit 20 to download data indicating the expiration date of the data downloaded in step 7d from the server SA on the public network. Then, the expiration date data stored in the expiration date storage area 31b is updated to the downloaded expiration date data, and the process proceeds to step 7f.

In step 7f, the control unit 51 monitors the signal received by the radio line communication control unit 10, and determines whether or not the signal includes data indicating that the provision of information is to be terminated. Then, when the data is included from the information communication terminal PS, the above download processing is terminated. On the other hand, if the data is not included, the process returns to step 7a to continue the download process.

As described above, in the radio base station apparatus CS having the above configuration, the data (base station data) stored in the own station is stored.
The expiration date of each file is stored. Then, by comparing the expiration date with the current time, the information communication terminal PS
In the case where the data requested by the user is data whose expiration date has expired, the data requested by the information communication terminal PS is downloaded from the server SA and provided by the information communication terminal PS. Update the data that is stored.

Therefore, the radio base station apparatus C having the above configuration
According to S, the old (expired) data stored in the own station is updated in response to a request from the information communication terminal PS. Therefore, there is no provision request from the information communication terminal PS. Update of data can be prevented. It goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0078]

As described above, according to the present invention, when there is a data provision request from a mobile communication terminal, the necessity of updating the requested data is determined, and the first data is determined according to the determination result. The data requested by the mobile communication terminal is read out from the memory means, and the data in the second memory means is updated.

Therefore, according to the present invention, the data stored in the own station is updated in response to the data provision request of the mobile communication terminal, so that the data update without the provision request from the mobile communication terminal is performed. Can be provided.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing a configuration of a first embodiment of a radio base station apparatus according to the present invention.

FIG. 2 is a diagram showing a configuration of a table stored in a base station file update time storage area of the wireless base station device shown in FIG. 1;

FIG. 3 is a flowchart for explaining the operation of the radio base station apparatus shown in FIG. 1;

FIG. 4 is a flowchart for explaining download processing of the wireless base station apparatus shown in FIG. 1;

FIG. 5 is a circuit block diagram showing a configuration of a second embodiment of the radio base station apparatus according to the present invention.

6 is a diagram showing a configuration of a table stored in an expiration date storage area of the wireless base station device shown in FIG.

FIG. 7 is a flowchart for explaining the operation of the radio base station apparatus shown in FIG. 5;

FIG. 8 is a diagram showing a wireless base station apparatus for providing information to an information communication terminal, a server for supplying information to the wireless base station apparatus, and a public network accommodating them.

[Explanation of symbols]

 CS: wireless base station apparatus PS: information communication terminal SA: server 1: antenna 10: wireless line communication control unit 20: wired line communication control unit 30, 31, storage unit 30a, 31a provided information storage area 30b: base station file Update time storage area 30c Server file update time storage area 30d Table update time storage area 31b Expiration date storage area 40 Clock unit 50, 51 Main control unit 50a, 51a Data update control unit 50b Table update control unit

Claims (5)

[Claims] An apparatus for connecting a mobile communication terminal connected via a wireless line to a public network, receiving data from a first memory means connected via the public network and owning a second memory Means for providing data stored in the second memory means in response to a request from the mobile communication terminal through a wireless line, wherein the mobile communication terminal receives a data provision request from the mobile communication terminal. In this case, of the data stored in the second memory means, data determination means for determining whether or not data required by the mobile communication terminal needs to be updated, and the data determination means need to update And a data updating means for reading data requested by the mobile communication terminal from the first memory means and updating data in the second memory means. The radio base station apparatus according to symptoms. 2. The data determination means includes: first update time storage means for storing an update time of data stored in the first memory means; and data stored in the second memory means, The first
A second update time storage means for storing a time updated in the memory means, an update time stored in the first update time storage means,
Data update necessity determining means for comparing whether or not the data stored in the second memory means needs to be updated by comparing the update time stored in the update time storage means with The radio base station apparatus according to claim 1, wherein: 3. The data updating means determines that the data determination means needs to be updated, and when reading data requested by the mobile communication terminal from the first memory means, the data updating means determines whether or not the data is to be updated. 3. The radio base station apparatus according to claim 2, wherein the update time data of the data stored in the memory means is also read to update the data recorded in the first update time storage means. 4. A method according to claim 1, further comprising the step of: when a new update is not performed even after a preset time has elapsed since the data recorded in said first update time storage is updated. The data of the update time of the data stored in the memory is read out, and the data recorded in the first update time storage unit is updated.
A wireless base station device according to item 1. 5. The data determination unit includes a clock unit that measures time, an expiration date storage unit that stores an expiration date of data stored in the second memory unit, and a data stored in the expiration date storage unit. Data updating necessity determining means for comparing the expiration date with the time measured by the clock means to determine whether it is necessary to update the data stored in the second memory means. The radio base station apparatus according to claim 1, wherein: