KR20020078380A - Method for controlling sleep mode in a mobile communication terminal - Google Patents

Abstract

PURPOSE: A method for controlling a sleep mode in a mobile communication terminal is provided to reduce a consumption current and increase the total call standby time by controlling only certain tasks for performing an initialization operation and stopping the operation of residual tasks in case that a flip is closed. CONSTITUTION: If a wakeup state is performed(S101), a receiving frame is demodulated(S102). It is checked whether the demodulation of the receiving frame is completed(S103). If the demodulation of the receiving frame is completed, it is checked whether a flip is closed(S104). If the flip is closed, necessary tasks such as an MC(Main Control) task, an SRCH(Search) task, an RX(Reception) task, and a TX(Transmission) task are controlled for performing an initialization operation(S106). It is checked whether the initialization operation of four tasks is ended(S107). If the initialization operation of four tasks is ended, a sleep mode is entered(S108).

Description

Method for controlling sleep mode in a mobile communication terminal

The present invention relates to a method of controlling a sleep mode of a mobile communication terminal, and in particular, by briefly controlling a task operation for entering a sleep mode in a state in which a flip is closed in a folder type mobile communication terminal. The present invention relates to a sleep mode control method of a mobile communication terminal which reduces current consumption and increases overall call waiting time.

1 is a schematic configuration diagram of a general folder type mobile communication terminal.

Here, the ANT transmits and receives an RF signal as an antenna, and a reference numeral 100 serves as a duplexer to provide a path of a transmitted RF signal and a received RF signal, and a reference numeral 200 denotes the duplexer 100 as a receiver. Demodulates the RF signal of the reception path output from the control unit, and separates and outputs the data and voice signals. Reference numeral 300 denotes a function of modulating the transmitted voice signal and the transmitted data as a transmitter and transmitting the modulated voice signal and the transmitted data to the duplexer 100. Perform.

In addition, reference numeral 400 is a voice processor that processes a received voice signal received from the receiver 200 and transmits the received voice signal to the speaker SP, processes a voice signal input through a microphone MIC, and transmits the received voice signal to the transmitter 300. Reference numeral 500 is a mobile station modem (MSM), and performs the function of the overall control of the transmission and reception, and reference numeral 600 is a keypad, having a call key, the end key, a numeric button, etc. And providing data corresponding to a key manipulated by the user to the mobile station modem 500. Reference numeral 700 displays a time and a phone number on the screen under the control of the mobile station modem 500. The reference numeral 800 performs a function of storing an incoming telephone number and an outgoing telephone number as a memory.

The sleep cycle of a typical clamshell mobile communication terminal performing such an operation is operated internally by a unit time of 26.67 ms (hereinafter referred to as a roll-over).

In other words, sleep for a time corresponding to an integer multiple of the roll-over, and wake up to check the call information and return to the sleep state is also based on such a roll-over.

Theoretically, when the terminal wakes up from the sleep state and checks the self-calling information and returns to the sleep state, the time to return to the sleep state is 5.17 ms as shown in FIG. 2. If this point is missed, the terminal returns to the sleep state at the next roll-over. This can increase your waking time.

As shown in FIG. 2, since call information is carried in the first frame of its slot, after decoding it and determining whether it is self-calling information, it enters the sleep state at the next roll-over. Can be.

However, as shown in FIG. 2, since the remaining time is 5.17 ms, the terminal may enter the sleep state at the next roll-over if it is not ready to enter the sleep state during this time.

On the other hand, mobile communication terminals (all mobile communication terminals including the folder type) operate in the slot-mode and nonslotted-mode, such as a call or interaction with the user. If not, it will operate in slot mode. Thus, the main factor in determining terminal latency is how much current is consumed in slot-mode.

Specifically, the terminal repeats sleep and wake-up while operating in the slot-mode, and the part that consumes a lot of double currents wakes up, and reducing the time during which this wake-up is the greatest increase in the total waiting time of the terminal is achieved. To be an element.

A lot of work has been done to reduce the time it takes to wake up, some of which can benefit from the use of fast hardware components, and some of the time savings by improving some software operation modules.

Among them, the conventional software structure does not use whether or not to open or close a folder, so that a task for unnecessary tasks is performed even when the folder is closed.

In fact, the tasks and mutual relationships used in the terminal software are shown in FIG.

3 shows a complete task used in terminal software. In general, in order for the terminal to enter the sleep state after waking up, all other tasks must be ready to sleep before entering the sleep mode. Therefore, when the terminal wakes up, other tasks are initialized and work is performed to determine whether to sleep by checking nearby events.

If you wake up when the folder is closed, the tasks you actually need are MC, SRCH, RX, TX, and so on.

However, the conventional software is not ready to sleep within 5.17 ms because the task can be initialized by switching to another task. Thus, the next roll-over enters the sleep mode, which increases the wake-up time relative to current consumption. In conclusion, if the current consumption increases, the standby time is relatively shortened.

Accordingly, the present invention has been proposed in order to solve various problems occurring when entering the sleep mode in the conventional clamshell mobile communication terminal.

An object of the present invention is to reduce the current consumption and increase the overall call waiting time by briefly controlling a task operation for entering a sleep mode in a state where a flip is closed in a clamshell mobile communication terminal. The present invention provides a method of controlling a sleep mode of a communication terminal.

"Sleep mode control method of a mobile communication terminal" according to the present invention for achieving the above object,

In the sleep mode control method of a mobile station modem in a clamshell mobile communication terminal,

Demodulating a received frame when the device is in the wake-up state and checking whether the flip frame is opened or closed when demodulation of the received frame is completed;

Entering a sleep mode in the same manner as the conventional method if the flip result is opened, and performing an initialization operation only for a required task if the flip result is closed;

When the initialization operation is completed only the predetermined task is characterized in that the step of entering the sleep mode immediately.

The predetermined necessary task is characterized in that the main control task MC task, the discovery task SRCH task, the transmission task TX task, the reception task RX task.

1 is a schematic configuration diagram of a general mobile communication terminal,

2 is an explanatory diagram for explaining a sleep cycle of a general mobile communication terminal,

3 is a structure diagram of a task provided in a general mobile communication terminal,

4 is a flowchart illustrating a sleep mode control method of a mobile communication terminal according to the present invention.

<Explanation of symbols for the main parts of the drawings>

400 ..... Voice Processing Unit

500 ..... Mobile station modem (MSM)

700 ..... LCD

800 ..... memory

SP ..... Speaker

MIC ..... microphone

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention according to the technical spirit as described above.

The system configuration of a mobile communication terminal to which the present invention is applied is shown in FIG.

The present invention controls the sleep mode in software in the mobile station modem of FIG.

4 is a flowchart illustrating a sleep mode control method in a mobile communication terminal according to the present invention.

As shown in the figure, the step of wake-up (S101), the step of demodulating a received frame (S102) when the wake-up state, the step of checking whether the demodulation of the received frame is completed (S103), and the check When the demodulation of the resultant receiving frame is completed (S104), if the flip is open or closed, and if the flip is open as a result of performing the task switching as in the conventional step (S105), If the check result is closed, controlling the control unit to perform an initialization operation only for a predetermined task (S106), checking whether the predetermined task has completed an initialization operation (S107), and if the predetermined task is a result of the check, When the initialization operation is terminated, a step of entering a sleep mode is performed (S108).

The sleep mode control method in the mobile communication terminal according to the present invention thus made first becomes a wake-up state in step S101.

When the wakeup state is reached, the reception frame is demodulated in step S102. In step S103, it is checked whether demodulation of the reception frame is completed. If demodulation of the reception frame is completed as a result of the check, it is checked in step S104 whether the flip is opened or closed.

As a result of checking whether the flip is open or closed, if the flip is open, that is, if the flip is open, the process moves to step S105 to enter the sleep mode after completing the initialization of all tasks as before.

On the contrary, as a result of checking whether the flip is opened or closed, if the flip is closed, the process moves to step S106, where the required task is: MC task, which is a task for main control, SRCH task, which is a search task, RX task, which is a receive task, TX task, which is a transmit task. Only controls to perform the initialization operation.

That is, the current consumption is reduced by limiting user interface related tasks operated by the timer (tasks are switched to the corresponding module when the timer expires even if there is no actual task content).

Next, in step S107, it is checked whether the initialization operation of the four tasks is completed. As a result, if the initialization operation of the four tasks is finished, the process moves to step S108 to immediately enter the sleep mode.

According to the above-described "sleep mode control method in the mobile communication terminal" according to the present invention, it is checked whether the flip is opened or closed after receiving frame demodulation, and as a result, only a predetermined task (four tasks) is initialized only when the flip is closed. By controlling to perform, and stopping the operation of the remaining tasks (about 13), it is possible to reduce the current consumption, for this reason there is an advantage that can increase the total call waiting time.

Claims (2)

In the sleep mode control method of a mobile station modem in a clamshell mobile communication terminal, Demodulating a received frame when the device is in the wake-up state and checking whether the flip frame is opened or closed when demodulation of the received frame is completed; Entering a sleep mode in the same manner as the conventional method if the flip result is opened, and performing an initialization operation only for a required task if the flip result is closed; And entering a sleep mode immediately after an initialization operation of the predetermined required task is completed. 2. The method of claim 1, wherein the predetermined necessary tasks are an MC task as a main control task, an SRCH task as a search task, a TX task as a transmission task, and an RX task as a reception task. .