KR102018373B1 - Mobile terminal and method for controlling of the same - Google Patents

Abstract

Disclosed are a mobile terminal and a method of controlling the mobile terminal. According to an embodiment, the mobile terminal receives a cell ID (Cell_ID) and a signal strength from a base station through a wireless communication unit, and sets a Wi-Fi search if the received cell ID and signal strength satisfy a preset condition. Can be set to On automatically and Wi-Fi can be searched.

Description

MOBILE TERMINAL AND METHOD FOR CONTROLLING OF THE SAME}

The present invention relates to a mobile terminal and a method for controlling the mobile terminal for changing a Wi-Fi search setting on and off as the cell moves.

In general, a mobile terminal such as a smartphone uses a battery as an operating power source, and the battery of the mobile terminal has a limited capacity. With the miniaturization and slimming of mobile terminals, batteries are also miniaturizing and slimming, so a method for reducing power consumption of mobile terminals has emerged as an important research issue.

Smartphones combine personal digital assistants (PDAs) with mobile phones, which perform not only the basic functions of PDAs such as portable computer functions, electronic organizers, and Internet search functions, but also mobile phone functions such as general wireless telephone functions.

 A terminal having a WiFi function and a mobile communication function, such as a smart phone, includes a module that performs a wireless communication function in addition to a module that performs a basic call function. The mobile communication is a periodic signal to and from the base station, so that you can continue to receive services while on the move, and the wireless communication function is usually turned on and off manually by the user.

However, if the user does not directly control the wireless communication function, the wireless communication function is activated even when the mobile terminal cannot access the access point (AP), which consumes power unnecessarily since it periodically searches for the access point. Many times.

The present invention relates to a mobile terminal and a method for controlling the mobile terminal automatically changing the Wi-Fi search setting to On or Off using a cell ID (Cell_ID) and the received signal strength. will be.

According to an embodiment of the present invention, a mobile terminal receives a cell ID (Cell_ID) and a signal strength from a base station through a wireless communication unit and a wireless communication unit, and the received cell ID and signal strength are preset. If the condition is satisfied, the Wi-Fi search setting may be automatically set to On, and the controller may be configured to search for Wi-Fi.

Here, the preset condition may include a case where the received cell ID is a cell ID of a cell including a registered access point and the received signal strength is included in a stored signal strength range.

The controller may automatically register at least one access point capable of being connected to the Wi-Fi connection found through the wireless communication unit as the access point of interest.

The controller may register the selected access point as the access point of interest among at least one access point capable of connecting to a Wi-Fi connection found through the wireless communication unit.

The controller may deregister the access point of interest.

When the access point of interest is registered, the controller may search for a cell ID of a cell including the access point of interest, and determine and store a signal strength range using the signal strength received through the access point of interest.

The mobile terminal may further include a memory storing a cell ID of a cell in which the access point of interest is included, and a signal strength range of the access point of interest.

The mobile terminal further includes a display module, and when the Wi-Fi connection is disconnected when the Wi-Fi connection is disconnected when the Wi-Fi connection is disconnected when the controller is connected to the access point through the wireless communication unit, You may not perform a pie search.

If the received cell ID is not the cell ID of the cell including the registered access point, or if the signal strength received through the wireless communication unit is not included in the stored signal strength range, the controller turns off the Wi-Fi search setting ( Off) can be set automatically.

The controller may receive the changed cell ID and signal strength from the base station through the wireless communication unit when the cell ID is changed.

When the cell ID is not changed, the controller may periodically receive only signal strength from the base station through the wireless communication unit.

In addition, the control method of the mobile terminal according to an embodiment of the present invention for realizing the above problem is a step of receiving a cell ID (Cell_ID) and signal strength from the base station, the condition that the cell ID and the signal strength is set in advance Determining whether or not satisfied, and automatically setting the Wi-Fi search setting to On and searching for Wi-Fi when the preset precondition is satisfied.

The determining of whether the received cell ID and the signal strength satisfy a preset condition is a cell ID of a cell including a registered access point, and the signal strength is included in a stored signal strength range. Can be determined.

The control method of the mobile terminal may include registering at least one access point capable of a Wi-Fi connection searched through the wireless communication unit as the access point before determining whether the received cell ID and the signal strength satisfy a preset condition. It may further include.

Receiving the cell ID (Cell_ID) and the signal strength from the base station, if the cell ID is changed, receives the changed cell ID and signal strength from the base station, if the cell ID is not changed, only the signal strength from the base station periodically Can be.

Specific details of other embodiments are included in the detailed description and the drawings.

The mobile terminal and the control method of the mobile terminal according to the present invention have the following effects.

According to an embodiment of the present invention, a mobile terminal enters a cell including a registered access point of interest and changes the Wi-Fi search setting to ON only when the received signal strength falls within a stored signal strength range. Battery consumption may be reduced by performing a Wi-Fi search only within an area included in a stored signal strength range among cells including the access point of interest.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a block diagram of a CDMA wireless communication system for communicating with a mobile terminal according to one embodiment of the present invention.
3 is a flowchart illustrating a control method of a mobile terminal according to an embodiment of the present invention.
4A and 4B are diagrams for describing a method of registering an access point of interest of a mobile terminal according to an embodiment of the present invention.
5 to 9 are diagrams for describing a method for controlling a mobile terminal according to one embodiment of the present invention.
10 is a view for explaining the power saving effect of the mobile terminal according to an embodiment of the present invention.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. However, the present invention may be modified in various ways and may have various embodiments. Hereinafter, specific embodiments will be illustrated in the drawings and described in detail. Like numbers refer to like elements throughout. In addition, when it is determined that the detailed description of the known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, numerals (eg, first, second, etc.) used in the description process of the present specification are merely identification symbols for distinguishing one component from another component.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or mixed in consideration of ease of specification, and do not have distinct meanings or roles by themselves.

The mobile terminal described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like.

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

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

The mobile terminal 100 may include a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, The interface unit 170 may include a controller 180, a power supply unit 190, and the like. The components shown in FIG. 1 are not essential, so that a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless internet module 113, a short range communication module 114, a location information module 115, and the like. .

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video BroadcastHandheld (DVBH).

The broadcast receiving module 111 receives a broadcast signal using various broadcasting systems, in particular, Digital Multimedia Broadcasting Terrestrial (DMBT), Digital Multimedia Broadcasting Satellite (DMBS), Media Forward Link Only (MediaFLO), and Digital Video BroadcastHandheld (DVBH). ), A digital broadcast signal can be received using a digital broadcast system such as Integrated Services Digital Broadcast Terrestrial (ISDBT). Of course, the broadcast receiving module 111 may be configured to be suitable for not only the above-described digital broadcast system but also other broadcast system for providing a broadcast signal.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory unit 160.

The mobile communication module 112 transmits and receives a wireless signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access, and the wireless internet module 113 may be internal or external to the mobile terminal 100. Wireless Internet technologies may include Wireless LAN (WiFi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The location information module 115 is a module for checking or obtaining the location of the mobile terminal. A representative example of the location information module is a GPS (Global Position System) module. According to the current technology, the GPS module 115 calculates information about a distance of one point (object) away from three or more satellites, and information on a time at which the distance information is measured, and then calculates the calculated distance information. By applying the trigonometric method to, three-dimensional positional information according to latitude, longitude, and altitude of one point (object) at one time can be calculated. Furthermore, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is also used. The GPS module 115 may continuously calculate the current position in real time and use the same to calculate speed information.

Referring to FIG. 1, the A / V input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video call mode or the photographing mode. The processed image frame may be displayed on the display module 151.

The image frame processed by the camera 121 may be stored in the memory unit 160 or transmitted to the outside through the wireless communication unit 110. Two or more cameras 121 may be provided according to the configuration aspect of the terminal.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, it may be responsible for sensing functions related to whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to an external device, and the like. Meanwhile, the sensing unit 140 may include an attitude sensor 141 and / or a proximity sensor.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display module 151, a sound output module 152, an alarm unit 153, and a haptic module 154. Can be.

The display module 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

The display module 151 is a liquid crystal display, a thin film transistor liquid crystal display, an organic light emitting diode, a flexible display, or a 3D display. It may include at least one.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is a transparent LCD. The rear structure of the display module 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display module 151 of the terminal body.

There may be two or more display modules 151 according to the implementation form of the mobile terminal 100. For example, a plurality of display units may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces, respectively.

When the display module 151 and a sensor for detecting a touch motion (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter, abbreviated as “touch screen”), the display module 151 is an output device. It can also be used as an input device. The touch sensor may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display module 151 or capacitance generated at a specific portion of the display module 151 into an electrical input signal. The touch sensor may be configured to detect not only the position and area of the touch but also the pressure at the touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits the corresponding data to the controller 180. As a result, the controller 180 can determine which area of the display module 151 is touched.

Referring to FIG. 1, a proximity sensor may be disposed in an inner region of a mobile terminal surrounded by the touch screen or near the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using mechanical force by using electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

When the touch screen is capacitive, the touch screen is configured to detect the proximity of the pointer by the change of the electric field according to the proximity of the pointer. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects a proximity touch and a proximity touch pattern (eg, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). Information corresponding to the sensed proximity touch operation and proximity touch pattern may be output on the touch screen.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory unit 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 outputs a sound signal related to a function (for example, a call signal reception sound and a message reception sound) performed in the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. The video signal or the audio signal may also be output through the display module 151 or the audio output module 152.

The haptic module 154 generates various haptic effects that a user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or may be sequentially output.

In addition to the vibration, the haptic module 154 may be used for the effects of stimulation by the arrangement of pins vertically moving with respect to the contact skin surface, the effect of the injection force of the air through the injection or inlet or the stimulation through the suction force, and the stimulation that rubs the skin surface. Various tactile effects may be generated, such as effects by stimulation through contact of electrodes, effects by stimulation using electrostatic force, and effects of reproducing a sense of warmth and heat using an endothermic or heat generating element.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also implement the haptic effect through the muscle sense of the user's finger or arm. Two or more haptic modules 154 may be provided according to a configuration aspect of the mobile terminal 100.

The memory unit 160 may store a program for the operation of the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory unit 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory unit 160 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), At least one of Random Access Memory (RAM), Static Random Access Memory (SRAM), ReadOnly Memory (ROM), Electrically Erasable Programmable ReadOnly Memory (EEPROM), Programmable ReadOnly Memory (PROM) magnetic memory, magnetic disk, optical disk It may include a storage medium of the type. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory unit 160 on the Internet.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or receives power and transmits the data to each component inside the mobile terminal 100 or transmits the data inside the mobile terminal 100 to an external device. For example, wired / wireless headset ports, external charger ports, wired / wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input / output (I / O) ports, The video input / output (I / O) port, the earphone port, and the like may be included in the interface unit 170.

The identification module is a chip that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( Universal Subscriber Identity Module (USIM), and the like. A device equipped with an identification module (hereinafter referred to as an 'identification device') may be manufactured in the form of a smart card. Therefore, the identification device may be connected to the terminal 100 through a port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be moved. It may be a passage that is delivered to the terminal. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

Various embodiments described herein may be implemented in a recording medium readable by a computer or similar device using, for example, software, hardware or a combination thereof.

According to a hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, microcontrollers, microprocessors, and electrical units for performing the functions. 180).

In a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that allow at least one function or operation to be performed. The software code may be implemented by a software application written in a suitable programming language. In addition, the software code may be stored in the memory unit 160 and executed by the controller 180.

2 is a block diagram of a CDMA wireless communication system for communicating with a mobile terminal according to one embodiment of the present invention.

Referring to FIG. 2, a CDMA wireless communication system includes a plurality of mobile terminals 100, a plurality of base stations 270, base station controllers BSCs 275, and a mobile switching center. Centers; MSCs, 280). The mobile switching center 280 is configured to be connected to a public switch telephone network (PSTN) 290. The mobile switching center 280 is also configured to be connected with the base station controllers 275. The base station controllers 275 are connected to the base stations 270 via backhaul lines. The backhaul lines may be configured according to E1 / T1, ATM, IP, PPP, frame relay, HDSL, ADSL, or xDSL known to those skilled in the art. It will be apparent to those skilled in the art that the system may include two or more base station controllers 275.

Each of the base stations 270 may include one or more sectors, each of which may include an omnidirectional antenna or an antenna tuned to a specific radial direction from the base station 270. Can be. Alternatively, each sector may include two antennas for diversity reception. Each base station 270 is configured to accommodate a plurality of frequency assignments, which may have a specific spectrum (eg, 1.25 MHz, 5 Mhz).

The intersection of sectors and frequency assignments may be referred to as a CDMA channel.

The base stations 27 may also be referred to as Base station Transceiver Subsystems (BTSs). In some examples, the term "base station" may be used to collectively refer to base station controller 275 and one or more base stations 270. The base stations may also be labeled "cell sites". Alternatively, individual sectors of a given base station 270 may be referred to as cell sites.

The terrestrial DMB transmitter 295 may broadcast to mobile terminals 100 operating in the system. The broadcast receiving module 111 of the mobile terminal 100 is generally configured to receive broadcast signals transmitted by the DMB transmitter 295. This may be similarly applied to other types of broadcast and multicast signaling as described above.

2 illustrates various Global Positioning System (GPS) satellites 300. Such satellites 300 may track the location of some or all mobile terminals 100. Although two satellites are shown, it is apparent to those skilled in the art that the location information can be obtained from more or fewer satellites. Other types of location techniques (eg, location techniques that can be used in place of or in addition to GPS technology) can be used. If desired, some or all of the GPS satellites 300 may be configured to support satellite DMB transmission separately or additionally.

During operation of the wireless communication system, the base stations 270 receive reverselink signals from several mobile terminals 100. The mobile terminals 100 may be in a call, sending a message, or performing other communication. Each reverse link signal received by the base station is processed at the base station. The processed data is transmitted to the connected base station controller 275. The base station controller 275 provides call resource allocation and includes mobility management functionality including orchestration of soft handoffs between base stations 270. ). The base station controllers 275 also send the received data to the mobile switching centers (MSCs) 280. The mobile switching center 280 provides additional routing services for interfacing with the public switch telephone network (PSTN) 290. Similarly, the public switching telephone network 290 interfaces with the mobile switching center 280, which interfaces with the base station controllers 275. The base station controllers 275 in turn control the base stations 270 to transmit forward link signals to the mobile terminal 100.

Hereinafter, embodiments of the present invention will be described.

3 is a flowchart illustrating a control method of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 3, the mobile terminal 100 receives a cell ID (Cell_ID) and signal strength from a base station (S110). When the mobile terminal 100 enters a new cell as the mobile terminal 100 moves, the mobile terminal 100 registers the location of the mobile terminal 100 in the home location register (HLR) and receives the newly entered cell ID and signal strength from the base station.

The controller 180 determines whether the received cell ID and the signal strength satisfy a preset condition (S120).

The controller 180 may automatically set the Wi-Fi search setting to On if the preset condition is satisfied (S130) and search for an accessible Wi-Fi (S150). On the other hand, the controller 180 automatically sets the Wi-Fi search setting to Off when it does not satisfy the preset condition (S140) and does not perform a connectable Wi-Fi search (S150).

Here, the preset condition means a case where the received cell ID is a cell ID of a cell including a registered access point and the received signal strength is included in a stored signal strength range.

At this time, the mobile terminal 100 assumes that the Wi-Fi module is on, that is, the Wi-Fi is activated in the environment setting of the mobile terminal 100, and the Wi-Fi search is performed. The setting means that the search setting is turned on so that the Wi-Fi can be searched while Wi-Fi is activated.

In general, when the Wi-Fi is activated, the controller 180 searches for a Wi-Fi to be accessible periodically, when Wi-Fi passes through a cell without an Access Point (AP). There is a problem that a lot of battery consumption of the mobile terminal 100 for the search. In addition, in order to reduce the battery consumption for the Wi-Fi search of the mobile terminal 100, even when performing the Wi-Fi search only when the display module 151 is On (On), the cell in which the mobile terminal 100 is moving If there is no accessible access point within, there is still a problem of draining the battery for unnecessary Wi-Fi search.

However, in the present invention, since the control unit 180 of the mobile terminal 100 satisfies a preset condition (S120), the Wi-Fi search setting can be changed to on / off (S130 and S140). Compared to the mobile terminal 100, unnecessary battery consumption can be reduced.

Hereinafter, a method of registering or releasing an access point of interest of a mobile terminal according to an embodiment of the present invention will be described.

4A and 4B are diagrams for describing a method of registering an access point of interest of a mobile terminal according to an embodiment of the present invention.

The controller 180 may automatically register at least one access point that can be connected to the Wi-Fi connection found through the wireless communication unit 110 as the access point of interest, and select only a specific access point and register it as the access point of interest.

Also, the controller 180 may manage the list of registered access points by deregistering at least one access point of interest from among the registered access points.

4A is a diagram for describing a method of registering interest access of a mobile terminal according to one embodiment of the present invention, and FIG. 4B is a diagram for explaining a method of releasing interest access.

Referring to FIG. 4A, the controller 180 of the mobile terminal 100 may select one of a normal mode and a smart Wi-Fi power saving mode in an environment setting, and when the smart Wi-Fi power saving mode is selected, the access point of interest (AP) is switched to the screen to register.

Here, the normal mode refers to a state in which a Wi-Fi search periodically accessible when the Wi-Fi is activated in the mobile terminal 100, and the smart Wi-Fi power saving mode is the Wi-Fi in the mobile terminal 100. The Wi-Fi search setting means to set (change or maintain) only when the pie is activated (WiFi On) but only when the preset condition is satisfied.

The controller 180 may select at least one of the Wi-Fi accessible in the smart Wi-Fi power saving mode and register it as the access point of interest.

Specifically, referring to FIG. 4A, an embodiment in which ABC-1 and ABC-3 are selected and registered as an access point of interest.

Referring to FIG. 4B, when ABC-3 of the registered access points ABC-1 and ABC-3 is selected, the controller 180 may release the access point selected by the access point of interest.

Accordingly, the controller 180 may manage only ABC-1 as the access point except for the deregistered interest access point ABC-3.

Hereinafter, a control method of a mobile terminal related to an embodiment of the present invention will be described in detail.

The method for controlling a mobile terminal according to an embodiment of the present invention may be applied when an access point of interest is registered in the mobile terminal 100 and an environment setting of the mobile terminal 100 is set to a smart Wi-Fi power saving mode.

The method of registering and releasing an access point of interest by the controller 180 may be performed by selecting or deselecting an access point accessible by the mobile terminal 100 as described with reference to FIGS. 4A and 4B.

When at least one access point accessible by the mobile terminal 100 is selected as the access point of interest, a cell ID and a signal strength range of a cell including the access point are stored in correspondence with each access point.

In this case, the signal strength range is a value calculated based on the signal strength received through the access point of interest, and may be determined by plus / minus (+/−) a value set in the received signal strength.

5 and 6 are diagrams for describing a method for controlling a mobile terminal according to the first embodiment of the present invention.

Referring to FIG. 5, the controller 180 of the mobile terminal 100 may register specific access points 271 and AP1 as an access point of interest in an environment setting. When a specific access point 271 (AP1) is registered as the access point of interest, the cell ID (Cell 1) of the cell (area A) including the registered access point AP1 may be automatically retrieved and stored.

Also, the controller 180 of the mobile terminal 100 may receive a Wi-Fi signal based on a signal strength (not shown) received through the access point AP1 registered as the access point of interest (area B). Can be registered as the signal strength range.

For example, when the signal strength received through the access point AP1 of interest is -80 dBm, the controller 180 sets the signal range in which the Wi-Fi signal can be received to -100 dBm to -75 dBm (C region). Can be stored.

Referring to FIG. 6, an access point AP1 of interest is registered in the mobile terminal 100.

For example, when the controller 180 receives the cell ID (Cell 1) and the signal strength (-85dBm) from the base station 270, the received cell ID (Cell 1) includes the access point AP1 of interest. It is determined whether the cell ID (Cell 1) of the cell (Area A) does not match and the received signal strength (-85 dBm) is included in the stored signal strength range (-100 dBm to -75 dBm).

The controller 180 is preset if the cell ID in which the received cell ID (Cell 1) is stored matches Cell 1 and the received signal strength (-85dBm) is included in the stored signal strength range (-100dBm to -75dBm). It is judged that the condition is satisfied.

When the preset condition is satisfied, the controller 180 of the mobile terminal 100 may change the Wi-Fi search setting to On and perform a Wi-Fi search. On the other hand, if the controller 180 of the mobile terminal 100 does not satisfy the preset condition, the controller 180 changes the Wi-Fi search setting to Off and does not perform the Wi-Fi search.

Therefore, as the mobile terminal 100 moves, the controller 180 may change the Wi-Fi search setting to On in the C region to perform Wi-Fi search.

In addition, the controller 180 may reduce the battery consumption of the mobile terminal 100 by changing the Wi-Fi search setting to Off when the C-zone is out of the C region.

FIG. 7 illustrates a method for controlling a mobile terminal according to a second embodiment of the present invention, in which two access points included in the same cell are registered as an access point of interest.

Referring to FIG. 7, the controller 180 of the mobile terminal 100 may register two access points AP1 and AP2 included in Cell 1 as an access point of interest.

When the access point AP1 and AP2 are registered as the access point of interest, the controller 180 of the mobile terminal 100 may search for a cell ID of a cell including the access points AP1 and AP2 and store the corresponding cell IDs of the access points of interest. have.

In addition, the controller 180 of the mobile terminal 100 adds / mines (+/−) a value set to the received signal strength when connected to the access points AP1 and AP2, respectively, and corresponds to a signal corresponding to each access point. You can save in the intensity range.

For example, the memory 160 of the mobile terminal 100 may store information about a plurality of access points of interest as shown in Table 1 below.

Access point name of interest Cell id Signal strength range AP1 (271a) Cell 1 -90 dBm to -80 dBm AP2 (271b) Cell 1 -70 dBm to -50 dBm

When the mobile terminal 100 receives a cell ID of Cell 2 and a signal strength of -50dBM from the base station as the mobile terminal 100 moves, the controller 180 compares the received cell ID, Cell 2, with the stored cell ID, respectively.

As a result of comparison, when the same cell ID does not exist, the controller 180 does not satisfy the preset condition and thus maintains or changes the Wi-Fi search setting to Off and does not perform the Wi-Fi search.

When the mobile terminal 100 receives a cell ID of Cell 1 and a signal strength of -60 dBm from the base station as the mobile terminal 100 moves to another cell, the controller 180 compares the received cell ID of Cell 1 with the stored cell ID, respectively.

As a result of the comparison, since the received cell ID is the same as the cell ID corresponding to AP1 and AP2 of the access point of interest, the controller 180 determines whether the received signal strength is included in the stored signal strength range.

As a result of determination, when the controller 180 determines that the received signal strength, -60 dBm, is included in the signal strength range corresponding to the access point AP2 of interest, the controller 180 determines that it is passing through an area accessible to the access point AP2 of interest and searches for the Wi-Fi. Change the setting to On.

When the mobile terminal 100 moves within the same cell, the controller 180 periodically receives the signal strength, and when the received signal strength is -65 dBm, the controller 180 is included in the stored signal strength range so that the Wi-Fi search setting is turned on ( On).

If the periodically received signal strength is out of the stored signal strength range, the controller 180 changes the Wi-Fi search setting to Off.

That is, when the mobile terminal 100 enters the C2 area of Cell 1, the Wi-Fi search setting is changed from Off to On, and when the mobile terminal 100 leaves the C2 area, the Wi-Fi search setting is On. To Off.

Similarly, when the mobile terminal 100 enters the C1 area, the Wi-Fi search setting is changed from Off to On, and when the mobile terminal 100 leaves the C1 area, the Wi-Fi search setting is turned off from On. Off).

That is, among the cell areas including the registered access point of interest, the Wi-Fi search setting is set to On only in the areas C1 and C2 corresponding to a specific signal strength range, so that the Wi-Fi search may be performed in other areas. Reduced battery consumption

8 and 9 are diagrams for describing a method for controlling a mobile terminal according to a third embodiment of the present invention.

Referring to FIG. 8, the controller 180 of the mobile terminal 100 may register two access points (not shown) included in Cell 3 and Cell 4 as an access point of interest.

The controller 180 of the mobile terminal 100 may store Cell 3 and Cell 4, which are cell IDs of cells in which the access point is included, corresponding to the access point of interest, respectively.

In addition, when the controller 180 of the mobile terminal 100 is connected to the access point of interest, the controller 180 plus / minus (+/-) a value set in the received signal strength to store the signal strength range corresponding to each access point. Can be.

For example, the memory 160 of the mobile terminal 100 may store information about a plurality of access points of interest as shown in Table 2 below.

Access point name of interest Cell id Signal strength range AP1 (not shown) Cell 3 -90 dBm to -60 dBm (C2 region) AP2 (not shown) Cell 4 -75 dBm to -50 dBm (C1 region)

When the mobile terminal 100 receives a cell ID of Cell 1 and a signal strength of -50dBM from the base station as the mobile terminal 100 moves the cell, the controller 180 compares the received cell ID of Cell 1 with the stored cell ID, respectively.

As a result of the comparison, when the same cell ID does not exist, the controller 180 does not satisfy the preset condition and thus keeps the Wi-Fi search setting off and does not perform the Wi-Fi search.

When the mobile terminal 100 receives a cell ID of Cell 4 and a signal strength of -30 dBm from the base station as the mobile terminal 100 moves to another cell, the controller 180 compares the received cell ID of Cell 4 with the stored cell ID, respectively.

As a result of the comparison, since the received cell ID is the same as the cell ID corresponding to AP2 of the access point of interest, the controller 180 determines whether the received signal strength is included in the stored signal strength range.

As a result of determination, when the controller 180 determines that the received signal strength, -30 dBm, is out of the signal strength range corresponding to the access point AP2 of interest, the controller 180 determines that it is passing through an area that cannot be connected to the access point of interest AP2 and searches for the Wi-Fi. Keep the setting Off.

The controller 180 of the mobile terminal 100 periodically receives signal strength while moving Cell 4, and receives a signal strength between -75 dBm and -50 dBm (C1 region), and the Wi-Fi search setting is On. To).

That is, when the controller 180 determines that the received signal strength is within a signal strength range corresponding to the access point AP2 of interest, the controller 180 determines that the signal strength is passing through an area accessible to the access point AP2 of interest and turns on the Wi-Fi search setting. On).

If it is determined that the periodically received signal strength is out of the signal strength range corresponding to the access point AP2 of interest, the controller 180 changes the Wi-Fi search setting to Off.

When the mobile terminal 100 moves to Cell 5, the controller 180 of the mobile terminal 100 receives the cell ID Cell 5 and the signal strength from the base station, but is not included in the cell ID corresponding to the registered access point. Keep the Wi-Fi search setting off.

In addition, when the mobile terminal 100 moves from Cell 5 to Cell 3, the controller 180 receives cell ID Cell 3 and signal strength of -50 dBm from the base station. The controller 180 compares the received cell ID and signal strength with the stored cell ID and signal strength range.

The controller 180 indicates that the received cell ID (Cell 3) is the same as the cell ID corresponding to the access point AP1 of interest, but the received signal strength (-50 dBm) is outside the stored signal strength range (-90 dBm to -60 dBm). By judging, the Wi-Fi search setting is kept Off.

While the mobile terminal 100 continues to move in Cell 3, the controller 180 periodically receives the signal strength, and the region C2 includes the received signal strength in the stored signal strength range (-90 dBm to -60 dBm). Changes the Wi-Fi search setting to On.

In addition, when the mobile terminal 100 moves again to enter a new cell (Cell 2), the controller 180 receives the cell ID (Cell 2) and the signal strength from the base station, and the stored cell ID (Cell 3, Cell 4) ) And the signal strength range (-90dBm to -60dBm, -75dBm to -50dBm) to keep the Wi-Fi search setting off because the preset conditions are not met.

Therefore, when the mobile terminal 100 moves several cells, the cell IDs Cell 3 and Cell 4 including the access points AP1 and AP2 registered in advance in the memory 160 of the mobile terminal 100 and Depending on the signal strength range (-90dBm to -60dBm, -75dBm to -50dBm), you can change or keep the Wi-Fi Search setting on or off.

The controller 180 sets the Wi-Fi search setting to On (solid line) only while passing through the C1 area of Cell 4 and the C2 area of Cell 3, and turns off the Wi-Fi search setting when passing through another area. Off) (dotted line).

The controller 180 can reduce unnecessary battery consumption by preventing the mobile terminal 100 from performing Wi-Fi search while passing through regions other than the C1 and C2 regions.

Referring to FIG. 9, an access point of interest registered in the controller 180 of the mobile terminal 100 is located on a concentric circle in Cell 2.

The memory 160 of the mobile terminal 100 may store Cell 2 as a cell ID including the access point of interest, and store the signal strength range as the signal range received in the concentric circles.

In the case where the mobile terminal 100 activates the Wi-Fi module, the mobile terminal 100 moves from left to right in the order of Cell 1, Cell 2, and Cell 3.

At point A, the controller 180 changes the cell to receive the cell ID (Cell 2) and the signal strength, but since the received cell ID does not match the cell ID stored in the memory 160, the controller 180 is preset. It determines that the condition is not satisfied and keeps the Wi-Fi setting search off.

At point B, the controller 180 receives the signal strength periodically as the mobile terminal 100 moves, although the cell has not changed, and thus receives the signal strength at point B and is included in the stored signal strength range. To judge. If the controller 180 determines that the received signal strength is included in the stored signal strength range, the controller 180 changes the Wi-Fi search setting to On and searches for the Wi-Fi.

In this case, the controller 180 may be connected to the Wi-Fi through an accessible access point of interest, and may not perform the Wi-Fi search until the Wi-Fi connection is disconnected (point C).

When the Wi-Fi is connected, the controller 180 may not perform the Wi-Fi search regardless of On or Off of the display module 151.

Conventionally, the controller 180 periodically performs a Wi-Fi search when the display module 151 is On and does not perform a Wi-Fi search when the display module 151 is Off. In the present invention, when the Wi-Fi is connected regardless of the on / off of the display module 151, the controller 180 does not perform the Wi-Fi search, thereby reducing battery consumption.

Since the signal strength received from the controller 180 passes through the C point to the D point, the signal strength received from the controller 180 is out of the stored signal strength range, thereby keeping the Wi-Fi search setting off.

At point D, since the mobile terminal 100 enters a new cell, it receives the cell ID (Cell 3) and the signal strength from the base station, and compares it with the stored cell ID and signal strength. In this case, the controller 180 determines that the preset condition is not satisfied and maintains the Wi-Fi search setting as Off.

10 is a view for explaining the power saving effect of the mobile terminal according to an embodiment of the present invention.

Referring to FIG. 10, FIG. 10A illustrates power consumption when the conventional mobile terminal 100 passes through Cell 1 of FIG. 9, and FIG. 10B illustrates a mobile terminal according to the present invention. When 100 passes through Cell 1 of FIG. 9, it illustrates power consumption.

In the related art, although the mobile terminal 100 periodically performs the Wi-Fi search even when passing through a cell other than the cell ID including the registered access point, the mobile terminal 100 consumes a lot of power. When the terminal 100 passes through a cell other than the cell ID including the registered access point, the Wi-Fi search setting may be kept off, thereby reducing power consumption due to the Wi-Fi search.

10 (c) shows power consumption when the conventional mobile terminal 100 passes through the Wi-Fi accessible area of Cell 2 of FIG. 9, and FIG. 10 (d) shows the mobile terminal according to the present invention. FIG. 9 illustrates power consumption when passing through the Wi-Fi accessible area of Cell 2 of FIG. 9.

In the conventional case, there is no power consumed when the display module 151 is turned off, but power is consumed because the Wi-Fi is periodically searched while the display module 151 is turned on. According to the present invention, since the mobile terminal 100 passes through the registered access point of interest, that is, when connected to the Wi-Fi, the Wi-Fi search setting is not performed, so the Wi-Fi is not connected to the display module 151. You can see that no power is consumed for the search.

The method for controlling a mobile terminal according to the present invention described above may be provided by recording on a computer-readable recording medium as a program for executing in a computer.

The control method of the mobile terminal according to the present invention can be executed through software. When implemented in software, the constituent means of the present invention are code segments that perform the necessary work. The program or code segments may be stored on a processor readable medium or transmitted by a computer data signal coupled with a carrier on a transmission medium or network.

Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of the computer-readable recording device include ROM, RAM, CD-ROM, DVD-ROM, DVD-RAM, magnetic tape, floppy disk, hard disk, optical data storage device, and the like. The computer readable recording medium can also be distributed over network coupled computer devices so that the computer readable code is stored and executed in a distributed fashion.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings. In addition, the embodiments described in this document may not be limitedly applied, but may be configured by selectively combining all or part of the embodiments so that various modifications may be made.

100: mobile terminal 151: display module
180: control unit

Claims (15)

Display module;
A wireless communication unit; And
Receives cell ID (Cell_ID) and signal strength from the base station through the wireless communication unit, and if the received cell ID and signal strength satisfies a preset condition, the Wi-Fi search setting is automatically turned on And setting the control unit to search for the Wi-Fi;
The controller may search for the Wi-Fi irrespective of On or Off of the display module until the Wi-Fi connection is disconnected when the Wi-Fi connection is connected to an access point found through the wireless communication unit. Mobile terminal, characterized in that does not perform.
The method of claim 1,
The preset condition may include a case in which the received cell ID is a cell ID of a cell including a registered access point, and the received signal strength is included in a stored signal strength range. Mobile terminal.
The method of claim 2,
The controller may automatically register at least one access point capable of a Wi-Fi connection searched through the wireless communication unit as the access point of interest.
The method of claim 2,
The controller may register, as the access point of interest, an access point selected from at least one access point capable of Wi-Fi connection found through the wireless communication unit.
The method of claim 4, wherein
And the control unit releases the registration of the access point of interest.
The method of claim 2,
When the access point of interest is registered, the controller searches for a cell ID of a cell including the access point of interest, and determines and stores a signal strength range using the signal strength received through the access point of interest. Mobile terminal.
The method of claim 2,
And a memory storing a cell ID of a cell in which the access point of interest is included and a signal strength range of the access point of interest.
delete The method of claim 2,
If the received cell ID is not the cell ID of the cell including the registered access point, or if the signal strength received through the wireless communication unit is not included in the stored signal strength range,
And automatically set the WiFi search setting to Off.
The method of claim 1,
The control unit, when the cell ID is changed, the mobile terminal, characterized in that for receiving the changed cell ID and signal strength from the base station via the wireless communication unit.
The method of claim 1,
The control unit, if the cell ID is not changed, the mobile terminal, characterized in that periodically receiving only the signal strength from the base station via the wireless communication unit.
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