JP3382902B2 - Mobile communication terminal, control channel search method used therefor, and recording medium storing control program - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication terminal, a control channel search method used for the mobile communication terminal, and a recording medium having a control program recorded therein, and more particularly to improving the efficiency of control channel search timing when the mobile communication terminal is out of service area.

[0002]

2. Description of the Related Art Conventionally, in a control channel search method for a mobile communication terminal, when a search operation of a control channel used for communication control between a radio base station and a mobile communication terminal is performed, it is generally fixed. The control channel search operation is performed every time, but in recent years, it has been required to suppress the current consumption in order to extend the battery life of the terminal.

That is, in the conventional control channel search method, as shown in FIG. 5, when the time t from the previous search of the control channel exceeds a preset time T1 (FIG. 5).
The control channel search operation is performed in step S31) (step S32 in FIG. 5).

[0004]

In the conventional control channel search method described above, when the mobile station is out of the service area, the control channel is searched for at a fixed time even if the mobile device is not moving. However, since the control channel is searched, the current consumption is large and the battery life is short.

Therefore, an object of the present invention is to solve the above problems, to suppress the control channel search operation when the mobile unit is not moving, and to extend the battery life and a mobile communication terminal. It is to provide a control channel search method to be used and a recording medium recording the control program.

[0006]

A mobile communication terminal according to the present invention is a mobile communication terminal which performs a search operation of a control channel used for communication control with a radio base station, and detects vibration of its own device. Vibration detecting means, counting means for counting the number of vibrations detected by the vibration detecting means, and executing the search operation of the control channel when the count value of the counting means exceeds a preset fixed value. And a control means for controlling , wherein the control means rides on a vehicle with less vibration.
When the drive mode is set to indicate that
After performing the channel search operation, the first preset
The control channel search operation is executed after a lapse of a predetermined time.
The control means is not set to the drive mode.
So as to perform a search operation of the control channel regardless preset number of vibrations of the second local device after a predetermined time has elapsed since the run search operation of the previous control channel on time, the control means, The previous control channel search operation was performed.
The elapsed time since the performance is less than or equal to the second predetermined time and
When the number of vibrations of the device itself exceeds the fixed value, the control
The channel search operation is executed .

A control channel search method according to the present invention is a control channel search method for a mobile communication terminal which performs a search operation of a control channel used for communication control with a radio base station, and is used for a vehicle with less vibration. That determines whether the drive mode is set, and whether the number of vibrations detected by the vibration detection means that detects the vibration of the own device exceeds a preset fixed value. And the drive mode is set
If it is determined that the control channel is searched, the control channel search operation is executed last time.
Then, after the lapse of a first preset time,
Controlling the search operation of your channel
And it is determined that the drive mode is not set.
Sometimes it is set in advance after the control channel search operation was previously executed.
Detects the vibration of the device itself after the elapse of the second predetermined time.
The above-mentioned control is performed regardless of the number of vibrations detected by the vibration detection means.
Controlling the search operation of your channel
And it is determined that the drive mode is not set.
Sometimes since the last time the control channel search operation was executed
Time is less than or equal to the second predetermined time and vibration of the own device
When it is determined that the number of times exceeds the fixed value, the control
And a control step for performing a channel search operation .

A recording medium recording a control channel search control program according to the present invention performs a control channel search operation for a mobile communication terminal which performs a search operation for a control channel used for communication control with a radio base station. A recording medium having a control channel search control program for storing the control channel search control program, wherein the control channel search control program is installed on the mobile communication terminal in a vehicle with less vibration.
Determine if the drive mode shown is set
Processing and vibration detection means to detect the vibration of the device itself.
Whether the number of vibrations exceeds a preset fixed value
Judgment process and the drive mode is set
When it is determined that the previous control channel search operation was executed
After a lapse of a first predetermined time from
A process for controlling so as to perform a search operation of Yaneru, the
When it is determined that the drive mode is not set,
Pre-configured after performing a control channel search operation
Vibration detection that detects the vibration of the device itself after the second predetermined time has elapsed
The control channel regardless of the number of vibrations detected by the output means.
A process for controlling so as to perform a search operation of Le, the Dora
When the Eve mode is not set, the previous control is performed.
The time elapsed since the channel search operation was executed
2 is less than the predetermined time and the number of vibrations of the device itself is
When it is judged that the value exceeds the fixed value, the search operation of the control channel
The process for controlling to execute the work is executed .

That is, according to the control channel search method of the present invention, the vibration of the mobile communication terminal body is detected by the vibrometer during the control channel search operation at the time of out-of-service, and the vibration is vibrated a predetermined number of times. In this case, the control channel search operation is performed.

More specifically, the mobile communication terminal of the present invention is
Since it has a vibration detection unit that detects the vibration of the own device and a counter that counts the number of vibrations, the vibration detection unit operates by the vibration of the own device, and the counter performs the operation of counting the number of vibrations. Conventionally, the control channel search is periodically performed when the mobile station is out of service, whereas the control channel search operation is performed when it vibrates a predetermined number of times.

Therefore, in the control channel search operation during the out-of-range, the control channel search operation is performed after the vibration of the device itself is detected by the vibrometer and the vibration is performed a predetermined number of times. Because
When there is no movement outside the service area, the control channel search operation is not performed.

As a result, it is possible to reduce the control channel search operation when the mobile unit does not move during the out-of-range, reduce the current consumption, and prolong the battery life.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a mobile communication terminal according to an embodiment of the present invention. In FIG. 1, the mobile device 1 includes an antenna 10 and a transmission / reception wireless unit 11
, Vibration detection unit 12, counter unit 13, and control unit 14
It consists of and.

The radio signal from the antenna 10 is received by the transmission / reception radio unit 11 and supplied to the control unit 14. In addition, when transmitting data, the signal output from the control unit 14 passes through the transmission / reception wireless unit 11 and is transmitted from the antenna 10.

Here, the vibration of the main body of the mobile unit 1 detected by the vibration detection unit 12 is input to the counter unit 13, and the counter unit 13 counts the number of vibrations. Vibration detector 12
Since the vibration is detected only when the mobile device 1 is out of the service area, the control unit 14 manages the vibration detection unit 12 and the counter unit 13 so as not to operate when the mobile device 1 is out of the service area.

The vibration detecting section 12 and the counter section 13 shown in FIG. 1 are well known to those skilled in the art, and the configuration itself is not directly related to the present invention, and therefore the detailed description of the configuration and operation is omitted. To do.

FIG. 2 is a flowchart showing a control channel search operation according to an embodiment of the present invention. A control channel search operation according to an embodiment of the present invention will be described with reference to FIGS. Here, in FIG. 2, the operation when the mobile device 1 is out of range is described.

The operation shown in FIG. 2 is performed by the controller 1 of the mobile unit 1.
4 is realized by executing a program recorded in a control memory (not shown), and a ROM (read only memory) or an IC (integrated circuit) memory can be used as the control memory.

When the mobile unit 1 goes out of range, the vibration detection unit 12
Detects the vibration of the main body of the mobile device 1. Here, mobile device 1
When is moved, vibration occurs in the main body of mobile unit 1,
The vibration detection unit 12 detects the vibration and the counter value of the counter unit 13 increases.

When the counter value of the counter section 13 becomes larger than a preset fixed value K (see FIG. 2).
In step S1), control is performed to execute the control channel search operation in the mobile device 1 (step S2 in FIG. 2).

On the other hand, the control unit 14 controls the mobile unit 1 outside the service area.
When the vibration of the main body is not detected, the control channel search operation is not executed until the counter value of the counter unit 13 becomes larger than the fixed value K, that is, until the vibration detection unit 12 detects the vibration of the main body of the mobile device 1 K times.

In this embodiment, in the control channel search operation during out-of-service, the vibration of the main body of the mobile unit 1 is detected by the vibrometer as a periodic operation, and the control channel search operation is performed when it vibrates a predetermined number of times. By doing so, the search operation of the control channel can be suppressed when there is no movement outside the service area. Therefore, it is possible to reduce the current consumption in the control channel search operation when out of the service area and extend the battery life.

FIG. 3 is a flowchart showing a control channel search operation according to another embodiment of the present invention. A control channel search operation according to another embodiment of the present invention will be described with reference to FIG. Here, the configuration of the mobile device according to another embodiment of the present invention is the same as that of the mobile device 1 shown in FIG.
In FIG. 3, the operation when the mobile device 1 goes out of service is described.

The operation shown in FIG. 3 is performed by the controller 1 of the mobile unit 1.
4 is realized by executing a program recorded in a control memory (not shown), and the control memory is a ROM or an IC.
Memory is available.

When the mobile unit 1 goes out of range, the vibration detector 12
Detects the vibration of the main body of the mobile unit 1, but when the control unit 14 detects a vibration of the main unit of the mobile unit 1 and rides on a vehicle such as a car with little vibration, it searches for a control channel in a certain period of time in the past. It is determined whether or not it is the drive mode for switching to the mode (step S11 in FIG. 3).

If the control unit 14 is not in the drive mode,
When the counter value of the counter unit 13 becomes larger than a preset fixed value K (step S12 in FIG. 3), control is performed to execute the control channel search operation in the mobile device 1 (step S13 in FIG. 3).

On the other hand, when the control unit 14 is in the drive mode, when the time t after the previous search of the control channel exceeds the preset time T1 (step S1 in FIG. 3).
4), control to execute the control channel search operation (step S13 in FIG. 3).

As described above, in another embodiment of the present invention, by adding the drive mode to the one embodiment of the present invention, it is possible to switch to the conventional mode for performing the control channel search in a certain time. The control channel can be searched as usual even when the user rides on a vehicle such as a car with little vibration.

On the other hand, when the drive mode is not set, the same operation as that of the above-described embodiment of the present invention is performed. Therefore, when there is no movement outside the service area, the control channel search operation can be suppressed. Since it is possible to reduce the current consumption in the control channel search operation when out of the service area, it is possible to extend the battery life.

FIG. 4 is a flow chart showing a control channel search operation according to another embodiment of the present invention. A control channel search operation according to another embodiment of the present invention will be described with reference to FIG. Here, the configuration of the mobile device according to another embodiment of the present invention is the same as that of the mobile device 1 shown in FIG.
In FIG. 4, the operation when the mobile device 1 goes out of service is described.

The operation shown in FIG. 4 is performed by the control unit 1 of the mobile unit 1.
4 is realized by executing a program recorded in a control memory (not shown), and the control memory is a ROM or an IC.
Memory is available.

When the mobile unit 1 goes out of range, the vibration detector 12
Detects the vibration of the main body of the mobile device 1, but when the control unit 14 rides on a vehicle such as a car with little vibration when detecting the vibration, it switches to the conventional mode for performing control channel search at a certain time. It is determined whether or not the drive mode is for drive (step S21 in FIG. 4).

If the control unit 14 is not in the drive mode,
When the time t since the last search for the control channel exceeds the preset time T2 (step S22 in FIG. 4), the control channel search operation is controlled to be executed (step S24 in FIG. 4).

If the time t since the last search for the control channel does not exceed the preset time T2 (step S22 in FIG. 4), the counter value of the counter unit 13 is preset. When it becomes larger than a certain fixed value K (step S23 in FIG. 4), control is performed to execute the control channel search operation in the mobile device 1 (step S24 in FIG. 4).

On the other hand, when the control unit 14 is in the drive mode, when the time t since the previous search of the control channel exceeds the preset time T1 (step S2 in FIG. 4).
5) Control is performed to execute the control channel search operation (step S24 in FIG. 4).

In another embodiment of the present invention, when detecting the vibration of the main body of the mobile unit 1, a time T preset by a timer is detected.
When it is detected that 2 has passed, the control channel is searched regardless of the frequency of the main body of the mobile device 1.

As a result, the control channel search is performed after the preset time T2 has passed, even when no vibration is detected or when the vehicle suddenly enters the service area due to some radio factor. You can

[0038]

As described above, according to the present invention, in a mobile communication terminal performing a search operation of a control channel used for communication control with a radio base station, vibration detection for detecting vibration of the own device is performed. By executing the control channel search operation when the number of vibrations detected by the means exceeds a preset fixed value, it is possible to suppress the control channel search operation when the mobile device is not moving. There is an effect that the life can be extended.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing a control channel search operation according to an embodiment of the present invention.

FIG. 3 is a flowchart showing a control channel search operation according to another embodiment of the present invention.

FIG. 4 is a flowchart showing a control channel search operation according to another embodiment of the present invention.

FIG. 5 is a flowchart showing a control channel search operation according to a conventional example.

[Explanation of symbols]

1 mobile 10 antennas 11 Transmission / reception radio section 12 Vibration detector 13 Counter part 14 Control unit

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Claims (6)

(57) [Claims] 1. A mobile communication terminal for performing a search operation of a control channel used for communication control with a radio base station, wherein the vibration detection means detects vibration of its own device, and the vibration detection means detects the vibration. Counting means for counting the number of vibrations performed,
The have a control unit the count of the counting means controls to perform the search operation of the control channel when it exceeds a preset fixed value, the control means, that are on the small vehicle vibration
Searching for the last control channel when setting the drive mode
The first predetermined time has elapsed since the operation was executed
The control channel search operation is executed later, and the control means controls the previous time when the drive mode is not set.
The search operation of the control channel so as to perform the search operation of the control channel regardless preset number of vibrations of the second local device after a predetermined time has elapsed since the run, the control means, the drive mode Previous system when not set
The time elapsed since the search operation of the control channel was executed
The number of vibrations of the self device is equal to or less than the second predetermined time
The control channel search operation is executed when the value exceeds the fixed value.
A mobile communication terminal characterized in that 2. The mobile communication terminal according to claim 1, wherein the vibration detecting means is operated only when it is out of the service area of the radio base station. 3. A control channel search method for a mobile communication terminal that performs a search operation of a control channel used for communication control with a radio base station, the drive mode indicating that the user is on a vehicle with less vibration. Is determined, whether or not the number of vibrations detected by the vibration detection means for detecting the vibration of the own device exceeds a preset fixed value, and the drive mode Before when it is determined that is set
Once the control channel search operation is performed
And the search operation of the control channel after the first predetermined time has elapsed.
And a step of controlling to execute the above, and when it is determined that the drive mode is not set.
It has been set in advance since the previous search operation of the control channel was executed.
The vibration to detect the vibration of the self apparatus to the second after a predetermined time
Regardless of the number of vibrations detected by the motion detection means.
The step of controlling to execute the search operation of the channel, and when it is determined that the drive mode is not set
Elapsed time since the last control channel search operation was performed
Is the second predetermined time or less and the number of vibrations of the device itself.
The control channel when it is determined that exceeds the fixed value
And a step of controlling the search operation to be executed . 4. The control channel searching method according to claim 3, wherein the vibration detecting means is operated only when the wireless base station is out of service area. 5. A recording medium recording a control channel search control program for causing a mobile communication terminal performing a search operation of a control channel used for communication control with a radio base station to perform the search operation of the control channel. The control channel search control program is a drive mode indicating to the mobile communication terminal that the vehicle is on a vehicle with less vibration.
Process to determine whether or not the mode is set, and the vibration detected by the vibration detection means that detects the vibration of the device itself.
Determine if the number of times exceeds a preset fixed value
Before processing and when it is determined that the drive mode is set
Once the control channel search operation is performed
And the search operation of the control channel after the first predetermined time has elapsed.
When it is determined that the drive mode is not set and the process to control
It has been set in advance since the previous search operation of the control channel was executed.
Vibration to detect the vibration of the device itself after the second predetermined time
Regardless of the number of vibrations detected by the motion detection means.
The process of controlling the search operation of the channel and when it is determined that the drive mode is not set
Elapsed time since the last control channel search operation was performed
Is the second predetermined time or less and the number of vibrations of the device itself.
The control channel when it is determined that exceeds the fixed value
A recording medium on which a control channel search control program is recorded, which is characterized by executing a process for controlling to execute the search operation of . 6. The control channel search control program is
When the mobile communication terminal is out of the range of the radio base station
Characterized in that the vibration detecting means is operated only
The control channel search control program according to claim 5 is recorded.
Recording medium.