KR20030088332A - Method for power save in wireless telephone - Google Patents

Abstract

PURPOSE: A method for saving power of a portable phone is provided to check a voice channel only without checking a data channel, and to change a cycle of a sleep mode in a call standby state of the portable phone using a hybrid mode, thereby reducing power consumption of a battery. CONSTITUTION: In a call standby state(101), a controller checks a voice channel only(102). When a voice call signal is transmitted while repeatedly checking the voice channel during one frame, the controller senses the voice call signal(103), and generates a ring signal through an audio processor to make a call(104). The controller senses that the call is completed(105). If data is requested, the controller senses the data request(106), and enables a user to connect with the data(107). The controller repeatedly checks the voice channel during one frame through a paging channel(108). The controller senses that a voice call signal is transmitted(109), generates a ring signal, and makes a call(110). When the call is completed, the controller senses the call completion(111).

Description

Power saving method of mobile phone {METHOD FOR POWER SAVE IN WIRELESS TELEPHONE}

The present invention relates to a portable telephone using a hybrid mode of the 1xEVDO scheme, and more particularly, to a method of saving power of a mobile phone battery by changing a search period of a data channel in a call standby state.

1 illustrates a process of checking while crossing a voice channel and a data channel in a call waiting state of a portable telephone according to the prior art.

Referring to FIG. 1, the 1xEVDO method used in a portable telephone includes a hybrid mode capable of receiving a voice call while transmitting and receiving data and a high data rate (HDR) for transmitting only data at high speed. .

In a portable phone using a hybrid mode capable of receiving a voice call while transmitting and receiving the data, the page channel is checked while crossing the voice channel and the data channel in a call waiting state.

The voice channel and the data channel are respectively checked for a sleep mode period of 5.12 sec. In the phone state, the voice channel and the data channel are checked for one frame (about 80 msec) while crossing each of the sleep mode period of 2.56 sec. Therefore, the system enters the sleep mode for 2.56 sec and checks the paging channel for about 80 msec.

In this case, the portable telephone supplies power to the RF controller and the data processor for one voice (about 80 msec) every 2.56 sec. That is, the controller enters the sleep mode for 2.56 sec and cuts off the power supply to the RF controller and the data processor, and repeats the operation of supplying power to the RF controller and the data processor for one frame (about 80 msec).

As described above, when the portable telephone supplies power to the RF control unit and the data processing unit every frame (approximately 80 msec) at 2.56 sec cycle, the battery of the portable telephone runs out faster than checking one frame (approximately 80 msec) at 5.12 sec interval. The problem arises.

Accordingly, an object of the present invention is to provide a method of checking only a voice channel without checking a data channel in a call waiting state of a portable telephone using a hybrid mode of 1xEVDO.

Another object of the present invention is to provide a method of searching while crossing a voice channel and a data channel by changing a search period of a data channel according to whether a data signal is detected in a call waiting state of the portable telephone.

Still another object of the present invention is to provide a method for searching for a channel in a call waiting state according to mode-specific information received from a base station.

A method of saving battery power in a portable telephone for achieving the above object includes: searching for a voice channel in a call waiting state, and accessing data when data is requested in a call waiting state for searching the voice channel. Characterized in that made.

In addition, a method of saving battery power in a portable telephone for achieving the above object includes registering a voice signal and a data signal, searching a voice channel and a data channel while searching for the data channel, and searching the data channel. When the data signal is received in the set search period, the process of increasing the search period of the data channel, and in the data channel search process, if the data signal is not received in the set search period, the process of reducing the search period of the data channel It is done.

In addition, a first mode for searching only the voice channel for achieving the above object, a second mode for searching the voice channel and the data channel while changing the search period of the data channel, and while crossing the voice channel and the data channel at regular intervals. A method of saving battery power of a portable telephone that receives mode-specific information from a base station in which information of a third mode to be searched is registered may include searching for mode-specific information transmitted from a base station, and receiving the first mode information from the base station. A first process of searching for a voice channel upon reception; a second process of searching for a voice channel and a data channel while changing a search period of the data channel when receiving second mode information from the base station; When receiving the 3 mode information, the voice channel and the data channel 3 process is characterized by constituted by any.

1 is a view illustrating a process of searching while crossing a voice channel and a data channel in a call waiting state of a portable terminal according to the prior art;

2 is a block diagram of a portable telephone according to an embodiment of the present invention.

Figure 3 is a control flow chart for performing a power saving function of the portable telephone according to the first embodiment of the present invention.

4 is a diagram illustrating a process of searching only a voice channel in a call waiting state according to FIG. 3.

5 is a control flow chart for performing a power saving function of the portable telephone according to the second embodiment of the present invention.

6 is a control flow chart for performing a power saving function of the portable telephone according to the third embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, detailed descriptions of preferred embodiments of the present invention will be described with reference to the accompanying drawings.

2 is a block diagram of a portable telephone according to an embodiment of the present invention.

Referring to FIG. 2, the key input unit 100 includes keys for inputting numeric and character information and function keys for setting various functions.

The memory 110 may be composed of a program memory and a data memory. The program memory may store programs for controlling a general operation of the portable telephone, and the data memory temporarily stores data generated during the execution of the programs. In addition, the memory 110 may include a flash memory or an EEPROM according to an embodiment of the present invention, and a search cycle of a data channel may be stored in the flash memory or the EEPROM.

The display unit 120 displays a state being performed under the control of the controller 160 and a key manipulation state of the user when performing a call function.

The data processor 130 includes a transmitter for encoding and modulating the transmitted signal and a receiver for demodulating and decoding the received signal. That is, the data processor 130 may be configured of a modem and a codec CODDEC. The audio processor 140 reproduces the received audio signal output from the data processor 130 or transmits the transmission audio signal generated from the microphone to the data processor 130.

The RF unit 150 performs communication of the portable telephone. The RF unit 150 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal.

The controller 160 controls the overall operation of the portable telephone. In addition, the controller 160 may include the data processor 130. In addition, the controller 10 searches only the voice channel in the call waiting state and controls the user to access the data when the data is requested according to an embodiment of the present invention. In addition, the controller 10 searches while crossing a voice channel and a data channel in a call waiting state, and controls to increase the data search period when a data signal is found during the search period of the data channel. If the data signal is not searched during the search period of the data channel, the data search period is reduced. In addition, the control unit 10 receives the mode-specific information from the base station according to an embodiment of the present invention, and controls to search for the channel for each mode in the call waiting state.

The power supply unit 170 cuts the power supply to the data processing unit 130 and the RF unit 150 during the sleep mode in the channel search in the call waiting state, and the data processing unit 130 and the RF unit 150 during one frame (about 80 msec) searching for the paging channel. Power on.

Referring to FIG. 2, when the user sets a dialing mode after performing a dialing operation through the key input unit 100, the controller 160 detects this and receives a dial received through the data processor 130. After processing the information is converted into an RF signal through the RF unit 150 and output. Thereafter, when the counter subscriber generates a response signal, the counter subscriber detects this through the RF unit 150 and the data processor 130. Thereafter, a user establishes a voice call path through the audio processor 140 to perform a communication function. In addition, in the incoming mode, the controller 160 detects the incoming mode through the data processor 130 and generates a ring signal through the audio processor 140. Thereafter, when the user responds, the controller 160 detects this, and a voice call path is formed through the audio processor 140 to perform a communication function. In the outgoing and incoming modes, voice communication is described as an example, but a data communication function for communicating packet data and video data may be performed in addition to the voice communication. In addition, when performing a standby mode or text communication, the controller 160 displays text data processed by the data processor 130 on the display 120.

Looking at the power saving operation in the portable phone as described above, while only the voice channel is searched in the call waiting state, when the user requests data, the data connection is performed. Alternatively, when the paging channel is searched while crossing the voice channel and the data channel in a call waiting state, if a data signal is detected during the search period of the data channel, the search time of the data channel is increased. Decrease. Alternatively, receiving a mode for channel search from the base station, and performs the channel search in the call waiting state in the corresponding mode.

3 is a control flow chart for performing a power saving function of the portable telephone according to the first embodiment of the present invention, and FIG. 4 is a diagram illustrating a process of searching only a voice channel in a call waiting state according to FIG. 3.

Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. 2 and 4.

In step 101 in the call waiting state, the controller 160 proceeds to step 102 in which only the voice channel is checked. In step 101 of checking only the voice channel, the controller 160 controls the power supply unit 170 to supply power to the RF unit 150 and the data processor 130 during one frame (about 80 msec) of checking the paging channel. In addition, the controller 10 controls to cut off power to the RF unit 150 and the data processing unit 130 during 5.12 sec in the sleep mode state.

As described above, if a voice call signal is transmitted while the voice channel is repeatedly checked and checked for one frame (approximately 80 msec) every 5.12 sec sleep mode period, the control unit 160 detects this in step 103 and proceeds to step 104. In step 104, a ring signal is generated through the audio processor 140 to perform a call. When the call execution ends in step 104, the controller 160 detects this in step 105 and proceeds to step 102 in which the voice channel is checked again in the call waiting state.

If the user requests data through the key input unit 100 in step 102 of checking the voice channel, the control unit 160 detects it in step 106 and proceeds to step 107 in which the data is accessed. In step 107 where the user accesses data, the controller 160 proceeds to step 108 in which the voice channel is repeatedly checked for one frame (about 80 msec) every 5.12 sec period through the paging channel. When the voice call signal is transmitted in step 108, the controller 160 detects it in step 109 and generates a ring signal through the audio processor 140. When the call is terminated in step 110, the controller 160 detects this in step 111 and proceeds to step 107 where data is accessed again. When the data connection is terminated in step 107, the controller 160 detects this in step 112 and proceeds to step 101 in which a voice channel is checked in a call waiting state.

5 is a control flowchart of a power saving function of the portable telephone according to the second embodiment of the present invention.

Hereinafter, a second embodiment of the present invention will be described in detail with reference to FIG. 2.

When the portable telephone is powered on in step 211, the controller 160 searches for a paging channel while searching for a voice signal or a data signal while crossing the voice channel and the data channel in step 212. At this time, the voice channel and the data channel intersect every 2.566 sec period and search for the paging channel for one frame (about 80 msec). When the voice signal is found in step 212, the controller 160 detects it and registers the voice (1x) signal with the base station. If a data signal is found in step 212, the controller 160 detects it in step 214 and proceeds to step 218 in which a data (Do) signal is registered in the base station. If the data signal is not detected in step 212, the controller 160 detects it in step 214, registers a voice (1x) signal with the base station, and then proceeds to step 215 in which only the voice channel is searched. In step 215, the controller 160 searches whether a data signal is received after a predetermined time. When the data signal is received, the controller 160 detects it in step 217 and proceeds to step 218 where the data (Do) signal is registered in the base station.

In the state where the voice signal and the data signal are registered in the base station, the controller 10 searches for a paging channel for one frame (about 80 msec) while crossing the voice channel of step 219 and the data channel of step 220 at predetermined sleep mode periods. . At this time, the sleep mode period of the data channel can be set based on the slot determined by the base station, and can be arbitrarily designated by the user for each portable telephone.

If the search period of the data channel is set based on the slot determined by the base station, the voice channel of step 219 and the data channel of step 220 search for a paging channel for one frame (about 80 msec) while crossing every 2.56 sec sleep mode period. . When searching for the data channel in step 220 after searching for the voice channel in step 219, if a data signal is searched for one frame (approximately 80 msec) after a 2.56 sec sleep mode period, the controller 160 detects it in step 221 and step 222. Proceed to In step 222, the controller 160 increases the sleep mode period value (2.56sec) of the current data channel by adding it to the previous sleep mode period value and stores the increased value in the memory 110. Alternatively, the slim mode period may be increased by a predetermined value and stored in the memory 110.

If the sleep mode period value of the increased data channel does not exceed a predetermined maximum value, the controller 160 detects this in step 223 and proceeds to step 219. If the sleep mode period of the data channel is greater than or equal to the maximum value while repeating the steps 219 to 223, the controller 160 detects this in step 223 and intersects the data channel having the maximum sleep mode period and the voice channel. The process proceeds to step 224 of searching for a paging channel for a frame (about 80 msec). In the above process, the voice channel searches for a paging channel for one frame (about 80 msec) every predetermined sleep mode (2.56 sec) period while crossing the data channel. The maximum value and the constant increase value may be preset in each mobile phone and stored in the memory 110.

If the data signal is not searched for one frame (approximately 80 msec) after the 2.56 sec sleep mode period when searching for the data channel in step 220 after searching for the voice channel in step 219, the controller 160 does this. Detect and proceed to step 225. In step 225, the control unit 160 decreases the sleep mode period value (2.56sec) of the data channel to a predetermined predetermined value and stores it in the memory 110. If the sleep mode period of the reduced data channel is greater than or equal to a predetermined minimum value, the controller 160 detects this in step 226 and proceeds to step 219. If the sleep mode period of the data channel becomes less than or equal to the minimum value while repeatedly performing step 219 to step 226, the controller 160 detects this in step 226 and proceeds to step 227. In step 227, the controller 160 searches for the paging channel for one frame (about 80 msec) while crossing the data channel having the minimum sleep mode period and the voice channel. When the minimum value in step 226 is less than 1 sec, only the voice channel may be searched in step 227. In the above process, the voice channel searches for a paging channel for one frame (about 80 msec) every predetermined sleep mode (2.56 sec) period while crossing the data channel. In addition, the minimum value and the predetermined decrease value may be preset in each mobile phone and stored in the memory 110.

6 is a control flowchart of performing a power saving function of the portable telephone according to the third embodiment of the present invention. According to an embodiment of the present invention, the first mode is a voice (1x) designation mode for searching only a voice channel in a call waiting state and shows FIG. 3. The second mode is a hybrid off mode in which the search period of the data channel is changed by increasing or decreasing the search period of the data channel during the search while crossing the voice channel and the data channel in a call waiting state. 5. The third mode represents a hybrid on mode in which a voice channel and a data channel are searched while in a call waiting state. The information of the first mode, the second mode, and the third mode is shown. Are registered with the base station.

Hereinafter, a third embodiment of the present invention will be described in detail with reference to FIGS. 2, 4, and 5.

In step 301, the controller 160 of the portable terminal searches for a channel transmitted from the base station, and searches for mode-specific information on the channel. In this case, the channel carrying the mode-specific information in the header may be a broadcast channel that is broadcast cast by the base station or may be a paging channel.

If '0001' indicating the first mode information is found in the header of the channel in step 302, the controller 160 detects it in step 303 and proceeds to the process of FIG.

In addition, when '0010' indicating the second mode information is found in the header of the channel in step 302, the controller 160 detects it in step 304 and changes the search period of the data channel in the call waiting state, thereby changing the voice channel and the data channel. The process of FIG. 4 which crosses and searches is performed.

In addition, in step 302, if '0100' indicating third mode information is found in the header of the channel, the controller 160 detects this in step 305 and proceeds to step 306. FIG. In step 306, the voice channel and the data channel cross each 2.566sec period in the call waiting state and search for the paging channel for one frame (about 80 msec). When a voice signal is found in the voice channel, a call is attempted. When a data signal is found in the data channel, a data connection is performed.

That is, as described above, the present invention reduces the power consumption of the battery by changing the period of the sleep mode in the call standby state of the mobile phone using the hybrid mode of the 1xEVDO system, thereby reducing the battery life. It can increase the effect.

Claims (9)

In a method of saving battery power in a mobile phone, Searching for a voice channel in a call waiting state, And accessing data upon request of data in a call waiting state for searching for the voice channel. The method of claim 1, In the call waiting state for searching for the voice channel, the call is performed when a voice signal is transmitted. The method of claim 1, Checking a voice channel after the data connection; In a data connection state of searching for the voice channel, performing a call when a voice signal is transmitted; And at the end of the call, performing the data connection. In a method of saving battery power in a mobile phone, Registering a voice signal and a data signal; Searching across voice channels and data channels, Increasing the search period of the data channel when a data signal is received in the set search period in the data channel search process; And retrieving the data channel if the data signal is not received in the set retrieval period. The method of claim 4, wherein And the search period of the data channel is automatically set to increase or decrease. The method of claim 4, wherein And wherein the search period of the data channel is increased or decreased to a preset value. Information in a first mode for searching only a voice channel, a second mode for searching across a voice channel and a data channel while changing a search period of the data channel, and a third mode for searching while crossing the voice channel and a data channel at regular intervals. In a method for saving battery power of a portable telephone that receives mode-specific information from a registered base station, Searching for mode-specific information transmitted by the base station; A first step of searching for a voice channel when receiving the first mode information from the base station; Receiving a second mode information from the base station, changing the search period of the data channel, and searching for the voice channel and the data channel by crossing the search; And receiving a third mode information from the base station and performing a search while crossing the voice channel and the data channel at regular intervals. The method of claim 7, wherein the first process, Searching for a voice channel in a call waiting state, And in the call waiting state for searching for the voice channel, accessing data on request of data. The method of claim 7, wherein the second process, Registering a voice signal and a data signal; Searching across voice channels and data channels, Increasing the search period of the data channel when a data signal is received in the set search period in the data channel search process; And retrieving the data channel if the data signal is not received in the set retrieval period.