JP2000115854A - Wireless communication device, wireless communication method, and wireless communication system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a wireless communication device, a wireless communication method, and a wireless communication system capable of updating stored time information without special operation. SOLUTION: The area number information stored in a current area number information area 501 is compared with the contents of a previous area number information storage area 505, and when the area number information is changed, the contents of the current area number information area 501 are changed. Is retrieved from the table 504 on the basis of the above, an offset value from the reference time is obtained, and the current time is calculated based on the offset value (step S60
3) If there is a change in the current date corresponding to the current time calculated here, the current date is updated (step 60).
5) Then, the current time stored in the current time storage area 503 is updated (step S606).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication apparatus, a wireless communication method, and a wireless communication system. The present invention relates to a possible wireless communication device, a wireless communication method, and a wireless communication system.

[0002]

2. Description of the Related Art Conventionally, in a so-called roaming-capable wireless communication system in which a wireless connection is made in a service zone controlled by a system other than the system to which the user has registered itself, the time or date is changed at the roaming destination. In such a case, the user himself has newly reset the local time and date to a wireless terminal (PDC, PHS, etc.) used in the wireless communication system.

[0003]

However, in the case of performing international roaming in a wireless communication system, the user checks the local date and time and updates the time information of the wireless terminal used in the wireless communication system. This requires labor for the person, resulting in poor serviceability.

Further, constantly updating and setting the current date and time of a wireless terminal based on information transmitted from a base station used in a wireless communication system is wasteful in terms of power consumption.

The present invention has been made in view of the above points, and provides a wireless communication apparatus, a wireless communication method, and a wireless communication system capable of updating stored time information without special operation. Aim.

[0006]

According to a first aspect of the present invention, there is provided a wireless communication apparatus for wirelessly connecting to a base station configured to transmit unique position information. Storage means for receiving the position information transmitted from the base station; calculating means for calculating a current time based on the position information; and calculating the current time stored in the storage means. The means is provided with updating means for updating to the calculated current time.

According to a second aspect of the present invention, in the wireless communication apparatus according to the first aspect, the storage means further stores a current date, and the calculating means calculates a current date based on the position information. An update unit updates the current date stored in the storage unit with the current date calculated by the calculation unit.

According to a third aspect of the present invention, in the wireless communication apparatus according to the second aspect, the storage unit further stores the position information, and the position information received by the reception unit is stored in the storage unit. A stop unit for stopping the calculation by the calculation unit when the position information is the same.

According to a fourth aspect of the present invention, in the wireless communication apparatus according to the third aspect, when the position information received by the receiving means is different from the position information stored in the storage means, the current value is calculated by the calculating means. The time and the current date are calculated, and the updating means updates the current time and the current date stored in the storage means to the current time and the current date calculated by the calculation means, and the position information stored in the storage means. Is updated to the position information received from the receiving means.

A wireless communication apparatus according to a fifth aspect of the present invention is the wireless communication apparatus according to the fourth aspect, further comprising storage means for storing the updated current time, current date, and location information as a log.

According to a sixth aspect of the present invention, in the wireless communication apparatus according to any one of the third to fifth aspects, when the wireless communication apparatus performs an outgoing or incoming operation, the storage means further comprises: A storage unit that stores a telephone number of the communication partner and stores the telephone number of the communication partner stored in the storage unit and the updated current time, current date, and location information as a log. .

A wireless communication system according to a seventh aspect of the present invention includes a base station configured to transmit unique position information, and a wireless communication system according to the first aspect.
A wireless communication device according to any one of claims 1 to 6.

[0013] The wireless communication method according to claim 8 is a wireless communication method for wirelessly connecting to a base station configured to transmit unique position information, wherein a storing step of storing a current time;
A receiving step of receiving position information transmitted from the base station, a calculating step of calculating a current time based on the position information, and a current time calculated in the calculating step of the current time stored in the storing step And an updating step of updating the information.

According to a ninth aspect of the present invention, in the wireless communication method according to the eighth aspect, a current date is further stored in the storing step, and a current date is calculated based on the position information in the calculating step. In the updating step, the current date stored in the storing step is updated to the current date calculated in the calculating step.

According to a tenth aspect of the present invention, in the wireless communication method according to the ninth aspect, the position information is further stored in the storing step, and the position information received in the receiving step is stored in the storing step. When the same
The method includes a stopping step of stopping the calculation in the calculating step.

The wireless communication method according to claim 11 is the method according to claim 10.
In the wireless communication method described, when the position information received in the receiving step is different from the position information stored in the storing step, a current time and a current date are calculated in the calculating step, and in the updating step, the storing is performed. Updating the current time and the current date stored in the step to the current time and the current date calculated in the calculation step, and updating the position information stored in the storage step to the position information received in the reception step. Features.

According to a twelfth aspect of the present invention, there is provided a wireless communication method according to the eleventh aspect.
The wireless communication method according to claim 1, further comprising a storing step of storing the updated current time, current date, and location information as a log.

A wireless communication method according to claim 13 is the wireless communication method according to claim 10.
The wireless communication method according to any one of claims 12 to 12, wherein
When an outgoing or incoming operation is performed, the telephone number of the communication partner is further stored in the storage step, and the telephone number of the communication partner stored in the storage step, and the updated current time and current date And storing the position information as a log.

[0019]

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

(First Embodiment) In a first embodiment of the present invention, an IMT2000 (International Mobile Telecommun
ication 2000) Wideband CDMA system candidate
A mobile communication system (hereinafter referred to as “W-CDMA”) will be described as an example.

FIG. 1 is a conceptual diagram of roaming of a wireless terminal device in a W-CDMA mobile communication system.

This W-CDMA mobile communication system includes a service zone 101 provided by a communication carrier A and a service zone 111 provided by a communication carrier B. These service zones are composed of a combination of radio cells formed by each base station, and the radio line control devices 102 and 112 of each operator supervise the radio base stations. The wireless channel control device 102 and the wireless channel control device 112 are connected via the communication network 100.

Further, in the W-CDMA mobile communication system, even when the wireless communication terminal 103 subscribed to the communication carrier A moves to the service zone controlled by the communication carrier B, the wireless connection is established. Yes, it is guaranteed for basic services (eg, outgoing and incoming calls, etc.).

FIG. 2 is a conceptual diagram of the configuration of the W-CDMA mobile communication system.

This W-CDMA mobile communication system has a variable communication speed wireless communication terminal 201 used by a user, a communication carrier equipment 207, and an ISDN 20 as a communication network.
4, an ATM 205 and a LAN 206.

The telecommunications carrier equipment 207 includes a base station 202 that controls the connection between the wireless communication line and the wired communication line, a wired line to which the base station 202 is connected, an ISDN 204 and an ATDN.
M205, existing communication network such as LAN 206, etc.
A wireless control device 203 for routing a communication path with the wireless communication terminal 201 is provided.

A broadcast signal 200 transmitted from the base station 202 to the radio communication terminal 201 is transmitted from each base station 202 constantly.
This signal transmits information essential for system control, such as the communication carrier providing the service and the identification information of the signal transmission source base station.

FIG. 3 shows an example of the information format of the broadcast signal 200 of the W-CDMA mobile communication system.

The broadcast signal 200 is transmitted using two 10-ms radio frames 308, decoded by the radio communication terminal 201, and the following contents are read out.

The contents decoded by the wireless communication terminal 201 are as follows:
Notification signal identification information 301 indicating the type of notification signal 200
And the transmission power 30 of the source base station of the broadcast signal 200.
2 and information frame number 30 added cyclically
3, interference information 304 on the receiving side of the source base station, and an information element detail area 305 for transmitting identification information of the communication carrier and the base station 202 and various information necessary for system control.
And the area code information area 306 where the base station 202 is located.
And an error correction code 307 for detecting and correcting an error occurring in decoding.

FIG. 4 is a functional block diagram of the wireless communication terminal 201.

The radio communication terminal 201 includes a radio unit 401 (receiving means) for transmitting and receiving radio waves, a baseband processing unit 402 for modulating and demodulating radio signals, and a frame for controlling disassembly / assembly of transmission / reception data in frame units. Disassembly / assembly unit 403, communication application 404, and control unit 40 that controls wireless communication and communication application 404
5 (calculating means, updating means) and various set values (reference time,
A setting information storage unit 406 (storage means, storage means) for storing an offset value from the reference time, area code information (position information), country code) and constants for various calculations. Further, the wireless communication terminal 201 includes a real-time clock 407 for updating time information of a reference time, and a display unit 408 for displaying various information such as time and date information.

FIG. 5 is a block diagram showing an example of the configuration of the setting information storage unit 406.

The setting information storage unit 406 includes a current area number information storage area 501 for storing area number information indicating a location where the wireless communication terminal 201 is currently located, and a reference for storing a reference time of clock information (for example, Greenwich Mean Time). A time storage area 502, a current time storage area 503 for storing the current time displayed on the display unit 408, and a table 504 for storing an offset from the reference time in the reference time storage area 502 for each area number. And a previous region number information storage area 505 for storing previously obtained region number information.

FIG. 6 is a flowchart showing the processing of the control unit 405 for automatically updating the time of the wireless communication terminal 201.

The control unit 405 receives the notification signal 200 from the base station 202 via the radio unit 401 (receiving means).
Causes the area code information included in the notification signal 200 to be stored in the current area code information area 501 (step S60).
1). This area number information and the previous area number information storage area 5
Then, it is determined whether or not there is a change in the area information by comparing the contents with the current information 05 (step S602). On the other hand, if there is a change, the table 504 is searched based on the contents of the current area number information area 501 to obtain an offset value from the reference time,
The current time is calculated based on the offset value (step S603) (calculation means). Note that the wireless communication terminal 201
Since the offset value from the reference time is given according to the area code information transmitted from the base station 202, the amount of calculation can be reduced and the storage capacity is efficient.

Next, it is determined whether there is a change in the current date corresponding to the current time obtained here (step S60).
4) If there is a change, the current date is updated (step 605) (update means), and then the current time storage area 503
Is updated (step S60).
6) (Update means). If the result of determination in step S604 is that there is no change in the current date, processing proceeds directly to step S606.

Finally, a new display of the current time and the current date is performed on the display unit 408 (step S607), and this control ends.

As described above, according to the present embodiment,
The contents of the area number information stored in the current area number information area 501 and the contents of the previous area number information storage area 505 are compared, and if there is a change in the area number information, a table is created based on the contents of the current area number information area 501. 504 is searched for an offset value from the reference time, and the current time is calculated based on the offset value (step S603). If there is a change in the current date corresponding to the calculated current time,
Since the current date is updated (step 605) and the current time stored in the current time storage area 503 is continuously updated (step S606), the time information and date information stored without any special operation can be updated. Since various calculations are performed only when a change occurs in the area number information, power consumption can be reduced.

(Second Embodiment) The second embodiment differs from the first embodiment in that the current time and the current date are automatically updated based on the area code information from the base station 202. The log of the change of the area number information is left as a log so that it is easy to know what schedule was used in the local area. The wireless communication terminal 20 according to the present embodiment
1 is different from the wireless communication terminal 201 according to the first embodiment only in that the setting information storage unit 406 has an area for storing a log described later.

FIG. 7 is a flowchart showing the processing of the control unit 405 for automatically updating the time of the wireless communication terminal 201 and recording and saving a log when the area code information changes.

First, the control unit 405, having received the broadcast signal 200 from the base station 202, stores the area code information included in the broadcast signal 200 in the current area code information area 501 (step S701). Next, the area number information is compared with the contents of the previous area number information area 505 to determine whether or not the area number information has been changed (step S702). On the other hand, if there is a change in the area code information, the current time and the current date are updated by the method described in the first embodiment (step S703), and the location (area code information)
The current time and the current date are stored as logs in the setting information storage unit 40.
6 and the process ends.

As described above, according to the present embodiment,
Since the area number information, the current time and the current date can be stored in the setting information storage unit 406 as a log, the activity schedule at that time can be easily and automatically recorded.

(Third Embodiment) The third embodiment is different from the second embodiment in which a change in the area number information is left as a log so that it is easy to know what schedule was used on site. In the embodiment, the telephone number, the area code information, the local time and the local date of the communication partner when the calling and receiving operations are performed are stored as logs. The wireless communication terminal 201 according to the present embodiment is the same as the wireless communication terminal 201 according to the second embodiment.

FIG. 8 is a flow chart showing the processing of the control unit 405 for automatically updating the time of the wireless communication terminal 201 and recording and saving a log when a calling / receiving operation is performed.

First, the control unit 405, having received the broadcast signal 200 from the base station 202, stores the area code information included in the broadcast signal 200 in the current area code information area 501 (step S801). Next, the area number information is compared with the contents of the previous area number information area 505 to determine whether or not the area number information has been changed (step S802). S
If the process skips to step 804 and there is a change in the area code information, the current time and the current date are updated by the method described in the first embodiment (step S803).

Next, it is determined whether or not an outgoing / incoming call operation has been performed (step S804). If the outgoing / incoming call operation has not been performed, this control is terminated. Causes the setting information storage unit 406 to store the telephone number of the communication partner, the location (area number information), the local time and the local date as a log (step S805),
This processing ends.

As described above, according to the present embodiment,
As the log, the local number information, the local time, the local date, and the telephone number of the communication partner can be accurately stored.

In the first to third embodiments of the present invention, the IMT 20 is a radio communication system on the premise of roaming.
00 (International Mobile Telecommunication 20
00) Wideband CDMA (hereinafter “W-CDM”) system candidate
A)).
The present invention can be applied to other similar systems based on roaming, for example, a narrowband CDMA mobile communication system.

[0050]

As described above in detail, according to the wireless communication apparatus of the first aspect and the wireless communication method of the eighth aspect, the current time is stored, the position information transmitted from the base station is received, Since the current time is calculated based on the position information and the stored current time is updated to the calculated current time, the stored time information can be updated without any special operation of the user.

According to the wireless communication device of the second aspect and the wireless communication method of the eighth aspect, the current date is further stored, the current date is calculated based on the position information, and the stored current date is calculated. Since the date is updated, the stored date information can be updated without any special operation by the user.

According to the wireless communication apparatus of the third aspect and the wireless communication method of the ninth aspect, when position information is further stored and when the received position information is the same as the stored position information,
Since the calculation is stopped, unnecessary calculation is not performed, and the power consumption of the wireless communication device can be reduced.

According to the wireless communication apparatus of the fifth aspect and the wireless communication method of the twelfth aspect, the updated current time, current date and location information are stored as logs, so that the activity schedule can be easily and automatically recorded. .

According to the wireless communication apparatus of the sixth aspect and the wireless communication method of the thirteenth aspect, when a calling or receiving operation is performed, the telephone number of the communication partner is further stored, and the telephone number of the communication partner is stored. , And the updated current time, current date, and location information are saved as logs, so that communication records can be saved.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of roaming of a wireless terminal device in a W-CDMA mobile communication system.

FIG. 2 is a conceptual diagram of a configuration of a W-CDMA mobile communication system.

FIG. 3 is an example of an information format of a broadcast signal 200 of the W-CDMA mobile communication system.

FIG. 4 is a functional block diagram of the wireless communication terminal 201.

FIG. 5 is an explanatory diagram of an example of a configuration of a setting information storage unit 406.

FIG. 6 is a flowchart illustrating processing of a control unit 405 that automatically updates time of the wireless communication terminal 201.

FIG. 7 is a flowchart illustrating processing of a control unit 405 for automatically updating time of the wireless communication terminal 201 and recording and saving a log when a change occurs in area information.

FIG. 8 is a flowchart showing a process of a control unit 405 for automatically updating the time of the wireless communication terminal 201 and recording and saving a log when an outgoing / incoming operation is performed.

[Explanation of symbols]

 201 mobile terminal 202 base station 203 radio controller 204 ISDN 205 ATM 206 LAN 401 radio section 402 baseband processing section 403 frame disassembly section 404 communication application 405 control section 406 setting information storage section 407 real time clock 408 display section

Claims (13)

[Claims] 1. A wireless communication apparatus for wirelessly connecting to a base station configured to transmit unique position information, comprising: storage means for storing a current time; and reception for receiving position information transmitted from the base station. Means, calculating means for calculating a current time based on the position information, and updating means for updating the current time stored in the storage means to the current time calculated by the calculating means. Wireless communication device. 2. The storage means further stores a current date, the calculation means calculates a current date based on the position information, and the update means stores the current date stored in the storage means in the calculation means. The wireless communication device according to claim 1, wherein the wireless communication device is updated with the calculated current date. 3. The storage unit further stores the position information, and when the position information received by the reception unit is the same as the position information stored in the storage unit, a stop unit that stops the calculation by the calculation unit. The wireless communication device according to claim 2, comprising: 4. When the position information received by the receiving unit is different from the position information stored in the storage unit, a current time and a current date are calculated by the calculation unit, and the update unit stores the current time and the current date in the storage unit. Updating the current time and the current date calculated by the calculating means to the current time and the current date calculated by the calculating means, and updating the position information stored in the storage means to the position information received from the receiving means. The wireless communication device according to claim 3. 5. The wireless communication apparatus according to claim 4, further comprising storage means for storing the updated current time, current date, and location information as a log. 6. When the wireless communication device performs an outgoing or incoming operation, the storage unit further stores a telephone number of a communication partner, and the telephone number of the communication partner stored in the storage unit; The wireless communication device according to claim 3, further comprising a storage unit configured to store the updated current time, current date, and position information as a log. 7. A wireless communication system comprising: a base station configured to transmit unique position information; and the wireless communication device according to claim 1. 8. A wireless communication method for wirelessly connecting to a base station configured to transmit unique position information, comprising: a storage step of storing a current time; and a receiving step of receiving position information transmitted from the base station. A step of calculating a current time based on the position information; and an updating step of updating the current time stored in the storage step to the current time calculated in the calculation step. Wireless communication method. 9. The current date is further stored in the storing step, the current date is calculated based on the position information in the calculating step, and the current date stored in the storing step is calculated in the updating step. 9. The wireless communication method according to claim 8, wherein the current date calculated in step (c) is updated. 10. A stop for storing the position information in the storing step and stopping the calculation in the calculating step when the position information received in the receiving step is the same as the position information stored in the storing step. The wireless communication method according to claim 9, comprising a step. 11. When the position information received in the receiving step is different from the position information stored in the storing step,
The calculating step calculates a current time and a current date, and the updating step updates the current time and the current date stored in the storing step to the current time and the current date calculated in the calculating step. 11. The wireless communication method according to claim 10, wherein the position information stored in step (c) is updated to the position information received in the receiving step. 12. The wireless communication method according to claim 11, further comprising a storing step of storing the updated current time, current date and location information as a log. 13. When an outgoing or incoming operation is performed, a telephone number of a communication partner is further stored in the storage step, and the telephone number of the communication partner stored in the storage step is provided.
13. The wireless communication method according to claim 10, further comprising a storing step of storing the updated current time, current date and position information as a log.