JP2002218546A - Time correction method for mobile phone terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically correct a display time of a clock circuit built in a mobile phone by clock information received from a base station. SOLUTION: The method for correcting the time of mobile phones employs a base station 3 that locates in an area A of a mobile phone terminal 1 and registers terminal information from the mobile phone terminal 1 resident in the area A to a visitor location register(VLR) 6, a peripheral base station 4 that registers terminal information from a mobile phone terminal 2 in an area B adjacent to the area A of the base station 3 to a VLR 7, a mobile switch center 5 that connects with the base station 3, the peripheral base station 4 and the VLRs 6, 7 and a home location register(HLR) 8 that connects with the mobile switch center 5 and the VLRs 6, 7 to store subscriber data of the mobile phone terminals 1, 2, and the mobile phone terminals 1, 2 attach a request of the clock information to the terminal information registered to the VLRs 6, 7 and transmits the resulting information, and the base station 3 and the peripheral base station 4 attach the clock information to the signals to the mobile phone terminals 1, 2 and transmits the resulting signals.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a time correction method for a mobile phone terminal, and more particularly to a time correction method for a mobile phone terminal incorporating a time display function by a clock circuit.

[0002]

2. Description of the Related Art A conventional time correction method for a portable telephone terminal is as follows.
If the time difference between the displayed time and the standard current time is large and the time needs to be corrected, the operator of the mobile phone terminal inputs the year, month,
The display of the day, hour and minute was corrected.

[0003]

According to the above-described conventional time correction method for a portable telephone terminal, when a display time of a built-in clock circuit is corrected and set, a handler manually operates the time signal service or the like. Since the time is set, there is a problem that the operation is troublesome and the user is left with the wrong time displayed. In addition, accurate time setting was difficult due to manual operation. An object of the present invention is to provide a time correction method for a mobile phone terminal that automatically corrects the display time of a built-in clock circuit.

[0004]

A time correction method for a portable telephone terminal according to the present invention comprises a visiting base station for registering terminal information from a portable telephone terminal located in an area in a visiting location register (VLR). A peripheral base station for registering terminal information from a mobile phone terminal in an area adjacent to the serving base station in the VLR, the serving base station, the peripheral base station, and the V
A mobile switching center connected to the LR, and a home location register (HLR) connected to the mobile switching center and the VLR and storing subscriber data of the mobile phone terminal, wherein the mobile phone terminal registers with the VLR; The transmission of clock information is requested to the terminal information, and the serving base station transmits the signal to the mobile phone terminal by adding the clock information.

Further, the mobile switching center measures the standard time, and transmits the clock information of the standard time to the mobile phone terminal through the serving base in response to a clock information transmission request from the mobile phone terminal. Features.

Further, the portable telephone terminal includes an internal clock circuit for measuring and displaying time, a radio transmitting / receiving circuit for transmitting / receiving a radio wave between a serving base station and a peripheral base station, and clock information in the radio wave. A clock information requesting circuit that adds a transmission request of the above, a clock information receiving circuit that receives the clock information added to the radio wave, a clock information decoding circuit that decodes the received clock information, and a decoded clock information. A time correction circuit for correcting the time of the internal clock circuit, a time display unit for displaying the corrected time, a position information registration circuit for registering position information, and clock information by operating the clock information transmission request circuit Clock information requesting means for transmitting the above request.

[0007] The clock information requesting means may include a clock information transmission request to the clock information transmitting circuit in response to a handover request signal when the portable telephone terminal moves from the serving base station to the area of the peripheral base station. Is added.

The clock information requesting means causes the clock information transmission circuit to add a clock information transmission request to position registration information transmitted when the portable telephone terminal is turned on.

Further, the clock information requesting means adds a clock information transmission request to the position registration information at predetermined time intervals to the clock information transmission circuit.

[0010]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram of one embodiment of the present invention. In the present embodiment, the terminal information from the mobile phone terminal 1 located in the area A is stored in the located position register (V
(LR) 6 and the serving base station 3
A peripheral base station 4 for registering terminal information from the mobile telephone terminal 2 in an area B adjacent to the area A in the VLR 7, a mobile switching center 5 connected to the serving base station 3, the peripheral base station 4 and the VLRs 6 and 7. , Mobile switching center 5 and VL
And a home position register (HLR) 8 connected to R6 and R7 to store the subscriber data of the mobile phone terminals 1 and 2. The mobile phone terminals 1 and 2 include clock information in terminal information registered in the VLRs 6 and 7. A request is added and transmitted, and the serving base station 3
In addition, the peripheral base station 4 adds clock information to the signal to the mobile phone terminals 1 and 2 and transmits the signal.

The mobile switching center 5 sets the standard time to G
The clock is corrected by the PS 4 or the like, and the clock information of the standard time is transmitted through the serving base station 3 and the peripheral base station 4 by the transmission request of the clock information from the mobile phone terminals 1 and 2.
Send to FIG. 2 is a detailed block diagram of the mobile phone terminal of the present embodiment. The mobile phone terminals 1 and 2 each include an internal clock circuit 11 that measures and displays the time, and a wireless transmission and reception circuit 1 that transmits and receives radio waves between the serving base station 3 and the peripheral base station 4.
2, a clock information transmission request circuit 13 for adding a transmission request of clock information to the radio wave, a clock information reception circuit 14 for receiving the clock information added to the radio wave, and a clock information decoding for decoding the received clock information. A circuit 15; a time correction circuit 16 for correcting the time of the internal clock circuit 11 based on the decoded clock information; a time display unit 17 for displaying the time; a position information registration circuit 18 for registering the position information; Clock information request means 19 for operating the transmission request circuit 13 to transmit a request for clock information.

The clock information requesting means 19 of the portable telephone terminals 1 and 2 transmits from the area A of the serving base station 3 to the surrounding base station 4.
A request for transmitting clock information can be added to the handover request signal when moving to the area B.

The clock information requesting means 19 of the portable telephone terminals 1 and 2 can add a request for transmitting clock information to the position registration information transmitted when the power is turned on. The clock information requesting means 19 of the mobile phone terminals 1 and 2 can perform a transmission of the clock information to the position registration information at predetermined time intervals. By doing so, in the operation when the power of the mobile phone terminal is turned on, the mobile phone terminal 1 or 2
When the power is turned on, the mobile phone terminal 1 and the area A are registered in order to register their own terminal information such as position information in the VLR 6 of the area A.
Is exchanged with the serving base station 3. Clock information is added (attached) to the information from the serving base station 3 to the mobile phone terminal 1 in this information exchange processing. Mobile phone terminal 1
Rewrites and corrects the time of the internal clock circuit 11 with the clock information sent from the serving base station 3 and corrects the time.
Can be displayed.

Further, when the mobile phone terminal 1 moves from the area A managed by the VLR 6 to the area B managed by the VLR 7, the mobile phone terminal 2 uses the peripheral base station 4 to register its own information in the VLR 7 in the area B. Information is exchanged with The peripheral base station 4 in this information exchange process adds the clock information to the information transmitted to the mobile phone terminal 2, and the mobile phone terminal 2 uses the clock information transmitted from the peripheral base station 4 to change the time of the internal clock circuit 11. Rewrite and display it.

[0015]

As described above, according to the present invention, a serving base station for registering terminal information from a mobile phone terminal located in an area in a serving location register (VLR), and the serving base station A peripheral base station for registering terminal information from a mobile telephone terminal in an area adjacent to a station in a VLR; a mobile switching center connected to the serving base station, the peripheral base station and the VLR; A home location register (HLR) connected to a VLR and storing subscriber data of the mobile phone terminal, wherein the mobile phone terminal requests transmission of clock information to the terminal information registered in the VLR, The base station adds clock information to the signal to the mobile phone terminal and transmits the signal to reduce errors in the clock information displayed on the mobile phone terminal. In addition, the clock of the mobile phone terminal can be corrected without increasing the traffic of the communication network.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a detailed block diagram of the mobile phone terminal of the embodiment.

[Explanation of symbols]

 1, 2 mobile phone terminal 3 serving base station 4 peripheral base station 5 mobile switching center 6, 7 serving location register (VLR) 8 home location register (HLR) 11 internal clock circuit 12 wireless transmission / reception circuit 13 clock information transmission request circuit 14 Clock information receiving circuit 15 Clock information decoding circuit 16 Time correction circuit 17 Time display unit 18 Position information registration circuit 19 Clock information request means

Claims (6)

[Claims] 1. A service base station for registering terminal information from a mobile phone terminal located in an area in a service location register (VLR), and a mobile phone terminal in an area adjacent to the service base station. A peripheral base station for registering terminal information in the VLR, the serving base station, the peripheral base station, and the V
A mobile switching center connected to the LR, and a home location register (HLR) connected to the mobile switching center and the VLR and storing subscriber data of the mobile phone terminal, wherein the mobile phone terminal registers with the VLR; A time correction method for a mobile phone terminal, wherein the terminal base station requests transmission of clock information to the terminal information, and the serving base station transmits the signal to the mobile phone terminal by adding clock information. 2. The mobile switching center measures a standard time, and transmits the clock information of the standard time to the mobile phone terminal through the serving base in response to a clock information transmission request from the mobile phone terminal. 2. The time correction method for a mobile phone terminal according to claim 1, wherein: 3. The portable telephone terminal includes: an internal clock circuit for measuring and displaying time; a wireless transmitting / receiving circuit for transmitting / receiving a radio wave between a serving base station and a peripheral base station; A clock information request circuit for adding a transmission request of
A clock information receiving circuit for receiving clock information added to the radio wave, a clock information decoding circuit for decoding the received clock information, and a time correction circuit for correcting the time of the internal clock circuit based on the decoded clock information A time display unit for displaying the corrected time, a position information registration circuit for registering position information, and clock information requesting means for operating the clock information transmission request circuit to transmit a request for clock information. 2. The time correction method for a mobile phone terminal according to claim 1, wherein: 4. The clock information requesting means transmits a clock information transmission request to the clock information transmission circuit in response to a handover request signal when the mobile phone terminal moves from the serving base station to the area of the peripheral base station. 4. The time correction method for a mobile phone terminal according to claim 3, wherein the time is added. 5. The clock information requesting means causes the clock information transmission circuit to add a clock information transmission request to position registration information transmitted when power of the mobile phone terminal is turned on. 3. The time correction method of the mobile phone terminal according to 3. 6. The clock information requesting means according to claim 3, wherein said clock information transmission circuit adds a clock information transmission request to said position registration information at predetermined time intervals. Time correction method for mobile phone terminals.