JP6093459B2 - Communication terminal, communication control program, and communication control method - Google Patents

Description

  The present invention relates to a communication terminal, a communication control program, and a communication control method, and more particularly to a communication terminal, a communication control program, and a communication control method that perform wireless communication.

An example of a communication terminal that performs wireless communication is disclosed in Patent Document 1. The mobile phone of Patent Document 1 performs background reception in which data is received in the background without interfering with this processing even when some processing is executed when data is received.
JP 2008-301106 A [H04M 1/00]

  However, in a mobile phone called a so-called smart phone, background communication (reception) for periodic server synchronization by each application (function) frequently occurs. Therefore, current consumption increases.

  Therefore, the main object of the present invention is to provide a novel communication terminal, communication control program, and communication control method.

  Another object of the present invention is to provide a communication terminal, a communication control program, and a communication control method capable of reducing current consumption due to wireless communication.

  The present invention employs the following configuration in order to solve the above problems. The reference numerals in parentheses, supplementary explanations, and the like indicate the corresponding relationship with the embodiments described in order to help understanding of the present invention, and do not limit the present invention.

The first invention includes a display, a communication unit connected to the base station for wireless communication, and a communication unit that continues the connection with the base station for a predetermined time even after the wireless communication ends, and a processor. on der is, when the screen displayed on the display is not idle screen, as the predetermined time, set the first hour, when the screen is idle screen, as the predetermined time, shorter than the first time second time Is a communication terminal.

According to the first aspect of the present invention, when the display is on, the current consumption is reduced by changing the predetermined time according to the screen displayed on the display without impairing the communication speed experience in the user operation. I can do it.

A second invention is a communication terminal according to the first invention, wherein the processor sets a third time shorter than the second time as the predetermined time when the display is off.

A third invention is a communication terminal according to the second invention, wherein the third time is 0 second.

A fourth invention is according to any one of the first to third invention, idle screen is a screen that displays the application icon, a communication terminal.

A fifth invention is according to the first to fourth any one of the screen other than the standby screen is a function screen corresponding to functions executable wireless communication, a communication terminal.

A sixth invention is a communication terminal according to the fifth invention, comprising a plurality of functions capable of performing wireless communication, wherein the processor executes in parallel at least two of the functions capable of performing wireless communication. .
A seventh invention is a communication terminal according to the first invention, wherein the processor does not maintain the connection with the base station after the wireless communication ends when the display is off.
The eighth invention is executed by a display and a processor of a communication terminal including a communication unit that connects to a base station to perform wireless communication and continues connection to the base station for a predetermined time even when the wireless communication is terminated. A communication control program, which causes the processor to function as a time changing unit that changes a predetermined time according to a screen displayed on the display when the display is on. Is a communication control program that sets a first time as a predetermined time when is not a standby screen, and sets a second time shorter than the first time as a predetermined time when the screen is a standby screen .
A ninth invention is a communication control method in a communication terminal including a display and a communication unit that connects to a base station to perform wireless communication and continues the connection with the base station for a predetermined time even when the wireless communication is terminated. Te, display Ri is on der, when the screen displayed on the display is not idle screen, as the predetermined time, set the first hour, when the screen is idle screen, as a predetermined time than the first time This is a communication control method for setting a short second time .

  According to the present invention, current consumption due to wireless communication can be reduced.

  The above object, other objects, features, and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

FIG. 1 is an external view showing a mobile phone according to an embodiment of the present invention. FIG. 2 is an illustrative view showing an electrical configuration of the mobile phone shown in FIG. FIG. 3 is an illustrative view showing one example of a functional block configuration of the mobile phone shown in FIG. FIG. 4 is an illustrative view showing one example of a graph showing a relationship between current consumption and time when the mobile phone shown in FIG. 1 performs wireless communication. FIG. 5 is an illustrative view showing another example of a graph representing a relationship between current consumption and time when the mobile phone shown in FIG. 1 performs wireless communication. FIG. 6 is an illustrative view showing another example of a graph showing a relationship between current consumption and time when the mobile phone shown in FIG. 1 performs wireless communication. 7 is an illustrative view showing an example of a display state of the display shown in FIG. 1, FIG. 7 (A) shows a screen off state, FIG. 7 (B) shows a standby screen display state, FIG. 7C shows a state in which the function screen is displayed. FIG. 8 is an illustrative view showing still another example of a graph showing a relationship between current consumption and time when the mobile phone shown in FIG. 1 is performing wireless communication, and FIG. FIG. 8B shows a graph showing the relationship between current consumption and time when not active, FIG. 8B shows a graph showing the relationship between current consumption and time when the active period is shortened, and FIG. The graph showing the relationship between current consumption and time when the active state is maintained as usual is shown. FIG. 9 is an illustrative view showing one example of a memory map of the RAM shown in FIG. FIG. 10 is a flowchart showing an example of the display state detection process of the processor shown in FIG. FIG. 11 is a flowchart showing an example of communication control processing of the processor shown in FIG.

  Referring to FIG. 1, a mobile phone 10 according to an embodiment of the present invention is a smartphone as an example, and includes a vertically long flat rectangular housing 12. However, it should be pointed out in advance that the present invention can be applied to any communication terminal such as a tablet terminal and a PDA.

  On one main surface (front surface) of the housing 12, for example, a display 14 such as a liquid crystal or an organic EL that functions as a display unit is provided. A touch panel 16 is provided on the display 14. Therefore, in the cellular phone 10 of this embodiment, most of the input operations except those by hard key operations described later are performed through the touch panel 16.

  A speaker 18 is built in the surface side of one end in the vertical direction of the housing 12, and a microphone 20 is built in the surface side of the other end in the vertical direction. In this embodiment, a call key 22, an end call key 24, and a menu key 26 are provided as hard keys that constitute input operation means together with the touch panel 16.

  For example, the user can input a telephone number by touching a dial key (not shown) displayed on the display 14 with the touch panel 16 and can start a voice call by operating the call key 22. Can do. If the end call key 24 is operated, the voice call can be terminated. The user can turn on / off the power supply of the mobile phone 10 by pressing and holding the end call key 24 for a long time.

  Further, if the menu key 26 is operated, a menu screen is displayed on the display 14, and touch operations on the touch panel 16 with respect to soft keys and menu icons (both not shown) displayed on the display 14 in that state. The menu can be selected by confirming the selection.

  Referring to FIG. 2, the mobile phone 10 of the embodiment shown in FIG. 1 includes a processor 30 called a computer or CPU. The processor 30 is connected to a wireless communication circuit 32, an A / D converter 36, a D / A converter 38, an input device 40, a display driver 42, a flash memory 44, a RAM 46, a touch panel control circuit 48, and the like. The wireless communication circuit 32 is wirelessly connected to the base station 100 via the antenna 34. Base station 100 is connected to network (communication network, telephone network) 102 in a wired or wireless manner.

  The processor 30 controls the entire mobile phone 10. All or part of the program preset in the flash memory 44 is expanded in the RAM 46 when used, and the processor 30 operates according to the program on the RAM 46. The RAM 46 is further used as a working area or a buffer area for the processor 30.

  The input device 40 includes the touch panel 16 and the hard keys 22-26 shown in FIG. 1, and constitutes an operation unit or an input unit. Information on the hard key operated by the user (key data) is input to the processor 30.

  The wireless communication circuit 32 is a circuit for transmitting and receiving radio waves for performing voice calls and mails to and from the base station 100. The wireless communication circuit 32 is a circuit for performing dormant wireless communication with the base station 100. With dormant wireless communication, wireless communication is temporarily suspended (dormant) when there is no communication for a certain period of time or when the radio wave condition is poor.

  For example, when the user operates the input device 40 to instruct a telephone call (calling), the wireless communication circuit 32 executes a telephone call process under the finger of the processor 30 and sends a telephone call signal via the antenna 34. Output. The telephone call signal is transmitted to the other party's telephone through the base station 100 and the network 102. When an incoming call process is performed at the other party's telephone, a communicable state is established, and the processor 30 executes a call process.

  The normal call processing will be described in detail. The modulated audio signal transmitted from the other party's telephone is received by the antenna 34. The received modulated audio signal is demodulated and decoded by the wireless communication circuit 32. The received voice signal obtained by these processes is converted to a voice signal by the D / A converter 38 and then output from the speaker 18. On the other hand, the transmission voice signal captured through the microphone 20 is converted into voice data by the A / D converter 36 and then given to the processor 30. The audio data is subjected to encoding processing and modulation processing by the wireless communication circuit 32 under the instruction of the processor 30, and is output via the antenna 34. Therefore, the modulated audio signal is transmitted to the other party's telephone via the base station 100 and the communication network 102.

  When a telephone call signal from the other party's telephone is received by the antenna 34, the radio communication circuit 32 notifies the processor 30 of an incoming call (incoming call). In response to this, the processor 30 controls the display driver 42 to display caller information (such as a telephone number) described in the incoming call notification on the display 14. In addition, the processor 30 causes the speaker 18 to output a ring tone (sometimes called a ringing melody or a ringing voice) from the speaker 18.

  When the user performs a response operation using the call key 22 (FIG. 1) included in the input device 40, the wireless communication circuit 32 executes a call incoming process under the instruction of the processor 30. Further, a communicable state is established, and the processor 30 executes the above-described call processing.

  Further, when the call termination operation is performed by the call termination key 24 (FIG. 1) included in the input device 40 after the transition to the call ready state, the processor 30 controls the wireless communication circuit 32 to terminate the call to the other party. Send a signal. Then, after transmitting the call end signal, the processor 30 ends the call process. The processor 30 also ends the call process when a call end signal is received from the other party first. Furthermore, the processor 30 also ends the call process when a call end signal is received from the mobile communication network regardless of the call partner.

  The microphone 20 shown in FIG. 1 is connected to the A / D converter 36, and the audio signal from the microphone 20 is connected to the digital audio data by the A / D converter 36 and input to the processor 30 as described above. The The speaker 18 is connected to the D / A converter 38. The D / A converter 38 converts digital audio data into an audio signal and supplies the audio signal to the speaker 18 through an amplifier. Therefore, the sound data is output from the speaker 18.

  The processor 30 adjusts the volume of the sound output from the speaker 18 by controlling the amplification factor of the amplifier connected to the D / A converter 38, for example, in response to the volume operation by the user. Can do.

  The display driver 42 is connected to the display 14 and the processor 30 and stores image data output from the processor 30 in the VRAM. Then, the display driver 42 displays an image corresponding to the VRAM data on the display 14. That is, the display driver 42 controls display on the display 14 connected to the display driver 42 under the instruction of the processor 30. The display 14 is provided with a backlight using, for example, an LED as a light source, and the display driver 42 controls the brightness of the backlight and lighting / extinguishing according to an instruction from the processor 30.

  The touch panel 16 shown in FIG. 1 is connected to the touch panel control circuit 48. The touch panel control circuit 48 applies necessary voltage to the touch panel 16 and indicates a start signal indicating the start of touch by the user on the touch panel 16, an end signal indicating the end of touch by the user, and a touch position touched by the user. Coordinate data is input to the processor 30. Therefore, the processor 30 can determine which icon or key the user touched at that time based on the coordinate data.

  In the embodiment, the touch panel 16 is a capacitance type that detects a change in capacitance between electrodes caused by an object such as a finger approaching the surface. For example, one or more fingers touch the touch panel 16. Detect that. The touch panel 16 is provided on the display 14 and is a pointing device for instructing an arbitrary position within the screen. The touch panel control circuit 48 detects a touch operation within the touch effective range of the touch panel 16 and outputs coordinate data indicating the position of the touch operation to the processor 30. That is, the user inputs the operation position, the operation direction, and the like to the mobile phone 10 by touching, sliding, releasing, and combining them on the surface of the touch panel 16.

  Note that the detection method of the touch panel 16 may employ a surface-type capacitance method, or may employ a resistance film method, an ultrasonic method, an infrared method, an electromagnetic induction method, or the like. The touch operation is not limited to the user's finger, and may be performed with a stylus pen or the like.

  FIG. 3 is an illustrative view showing a functional block configuration of the mobile phone 10 that performs communication. The configuration shown in FIG. 3 includes an input / display processing unit 60, a first function 62, a second function 64 and a third function 66, a communication processing layer 68, and a detection unit 70.

  The input / display processing unit 60 includes a display 14, a touch panel 16, hard keys 22-26, a processor 30, a display driver 42, a touch panel control circuit 48, and the like. For example, the input / display processing unit 60 notifies each function 62-66 that is being executed of a touch operation or a key operation performed based on the GUI displayed on the display 14. The input / display processing unit 60 also manages what kind of display is performed on the display 14 in response to a touch operation or a key operation.

  The first function 62, the second function 64, and the third function 66 are executed by the processor 30 in parallel. Each function 62-66 is instructed to be executed in response to a user operation, or is automatically instructed in the background. For example, the first function 62 includes a browser function for browsing HP and the like, a mail function for receiving mail, and the second function 64 and the third function 66 include an SNS function for using a simple blog. including. In other embodiments, more functions may be executed in parallel.

  The communication processing layer 68 includes the processor 30, the wireless communication circuit 32, and the antenna 34. The communication processing layer 68 converts a communication request from each function 62-66 into a radio signal and transmits / receives it to / from the base station 100. At this time, the communication processing layer 68 determines a communication destination based on the IP address included in the communication request.

  The wireless communication performed by the communication processing layer 68 includes wireless communication by user operation and background communication not by user operation. For example, the former wireless communication is performed when the browser function (first function 62) transmits and receives a large amount of data from the server. The latter wireless communication is performed when the SNS function (second function 64 or third function 66) is synchronized with the server by background communication. Since the upper functions 62-66 are processed in parallel, the communication processing layer 68 cannot determine which function is used for communication.

  The detection unit 70 includes a processor 30. In addition, the detection unit 70 may detect a state in which no user operation is performed, and may shorten an active state time to be described later according to the detection result.

FIG. 4 is an illustrative view of a graph showing a relationship between current consumption and time of the mobile phone 10 in a state where wireless communication is performed. Referring to FIG. 4, when mobile phone 10 establishes (connects) wireless communication with base station 100, current consumption increases, and when wireless communication is disconnected, current consumption decreases. A period during which the mobile phone 10 and the base station 100 perform data communication is called a “communication period”. When the communication period ends, the active state in which the wireless connection between the mobile phone 10 and the base station 100 is maintained is maintained. The time during which the active state is maintained is called an “active period”. Then, when “T ₁ ” seconds (for example, 10 seconds) have elapsed since the end of the communication period, the base station 100 issues an instruction to transition to the dormant state. That is, the active period is held for “T ₁ ” seconds after the end of the communication period. In addition, when a transition instruction to the dormant state is received, the state transitions to the dormant state, the wireless communication between the mobile phone 10 and the base station 100 is disconnected, and the processor 30 enters the sleep state. A period from the transition to the dormant state to the establishment of the next wireless communication is called a “dormant period”.

In addition, even if there is no instruction for transition to the dormant state from the base station 100, a timer is set so that the state transitions to the dormant state when “T ₀ seconds” (for example, 20 seconds) elapses. ing. Hereinafter, the timer corresponding to the active state time is referred to as an “active timer”.

  In the active state, the processor 30 is in the “Wake Up” state, and the wireless communication connection with the base station 100 is maintained. Therefore, even if there is a next communication request depending on the function being executed, the data communication can be resumed immediately. On the other hand, in the dormant state, the processor 30 is in the “Sleep” state, and communication with the base station 100 is disconnected. In this case, since the mobile phone 10 needs to be reconnected to the base station 100 in order to resume the wireless communication, a time lag of a certain time (for example, 2 to 3 seconds) occurs before the data communication is resumed.

  FIG. 5 is a graph showing the relationship between current consumption and time when wireless communication is performed by the first function 62. The first function 62 is a browser function as described above, and is executed by a user operation. When the first function 62 issues a communication request to the communication processing layer 68 in response to a user operation, wireless communication between the mobile phone 10 and the base station 100 is established. Thereafter, data communication is performed during the communication period, and the active state is maintained when the data communication ends. For example, if data communication for transmitting and receiving a large amount of data is performed intermittently, the next data communication is performed many times while the active state is maintained. In this way, if the active state is maintained, the response from the wireless communication becomes faster because there is no return from the dormant state. That is, by maintaining the active state, the communication speed experience in the user operation is not impaired.

  FIG. 6 is an illustrative view of a graph showing the relationship between current consumption and time when communication is performed by the second function 64 and the third function 66 executed in the background. In these functions, since the amount of data to be transmitted and received is small, the communication period is short. However, the active state is maintained every time wireless communication is established. For this reason, in the state where there is no user operation, the active state is maintained, so that current consumption is wasted.

  Here, if the active state is not maintained to reduce current consumption, the data communication must be restored from the dormant state every time data communication is performed, and the responsiveness of wireless communication is delayed. That is, if the active state is not maintained, the communication speed experience in the user operation is impaired.

  Therefore, in this embodiment, when the user is not using the mobile phone 10, the time during which the active state is maintained is shortened, and the transition to the dormant period is performed earlier than usual. Thereby, current consumption can be reduced without impairing the sense of communication speed in user operations.

  FIG. 7A is an illustrative view showing the display 14 with the screen turned off, FIG. 7B is an illustrative view showing an example of a standby screen, and FIG. 7C is an arbitrary function executed. It is an illustration figure which shows an example of the function screen displayed sometimes. The input / display processing unit 60 notifies the detection unit 70 of the display content every time the screen is switched to each screen.

  More specifically, when the screen is turned off, the display driver 42 notifies the processor 30 of the screen off state. When the standby screen is displayed on the display 14, the OS of the mobile phone 10 outputs a message indicating that the standby screen is displayed. When a message is output, the content is stored in the buffer of the RAM 46. When the first function 62 is executed, the OS of the mobile phone 10 outputs a message indicating the content of the function screen according to the function being executed.

  When the input / display processing unit 60 notifies the detection unit 70 that the screen is not operated by the user and the standby state in which communication by the user operation is not generated, the mobile phone 10 is not operated by the user. Detect as. And the detection part 70 will shorten (change) the time of an active state, if the state in which the mobile telephone 10 is not operated by the user is detected.

Referring to FIG. 8A, when data communication is performed when the screen is off, the time until the above-described active timer expires is set to “0 seconds (T ₃ seconds: first time)”. Therefore, the active period is not held after the communication period. Hereinafter, the transition to the dormant state without maintaining the active state is referred to as “first dormant”. In addition, an instruction to set the time when the active timer expires to “T ₃ seconds” for the first dormant is called “Fast Dormant forced instruction”.

Next, referring to FIG. 8B, when data communication is performed when the standby screen is displayed, the time of the active state held after the communication period is from the normal “T ₁ second”. Is also shortened to a short “T ₂ seconds (for example, 5 seconds: second time)”. Specifically, the time when the active timer expires is set to “T ₂ seconds”.

Then, referring to FIG. 8C, when data communication is performed when the function screen of the first function 62 or the like is displayed, the time of the active state held after the communication period is “ T ₁ second ”. However, the time when the active timer expires is set to “T ₀ seconds” as described above.

  As described above, when wireless communication is performed when the mobile phone 10 is not operated, the current consumption can be reduced by reducing the time of the active state without impairing the sense of the communication speed in the user operation. I can do it.

  In particular, when the display 14 is off, current consumption can be reduced by preventing the active state from being maintained. Further, even when the display 14 is not turned off and a standby screen is displayed, the active period is shortened so that current consumption can be suppressed.

  Although the features of the embodiment have been outlined above, the following description will be made in detail with reference to the memory map of the RAM 46 of the mobile phone 10 shown in FIG. 9 and the flowchart of the processor 30 of the mobile phone 10 shown in FIGS. To do.

  Referring to FIG. 9, program storage area 302 and data storage area 304 are formed in RAM 46 shown in FIG. As described above, the program storage area 302 is an area for reading and storing (developing) part or all of the program data set in advance in the flash memory 44 (FIG. 2).

  The program storage area 302 includes a display state detection program 310 that detects the display state of the display 14 and a communication control program 312 that establishes wireless communication. The program storage area 302 includes a program for executing a telephone function, a browser function, an SNS function, and the like.

  In the data storage area 304 of the RAM 46, a touch buffer 330, a display content buffer 332, and a communication content setting buffer 334 are provided. The data storage area 304 stores touch coordinate map data 336, GUI data 338, GUI coordinate data 340, and standby screen data 342. Further, the data storage area 304 is provided with a standby screen flag 344, a screen off flag 346, and an active counter 348.

  The touch buffer 330 stores touch coordinate data output from the touch panel control circuit 48. In the display content buffer 332, a message indicating the display content of the screen output by the OS is temporarily stored. The communication content setting buffer 334 temporarily stores information such as an IP address indicating a communication destination, information indicating the content of data transmitted and received by communication, and the like.

  The touch coordinate map data 336 is data for associating the touch coordinates in the touch operation with the display coordinates on the display 14. That is, the result of the touch operation performed on the touch panel 16 based on the touch coordinate map data 336 is reflected on the display 14.

  The GUI data 338 includes image data and character string data for displaying keys and the like displayed on the display 14. The GUI coordinate data 340 includes display coordinate data of the displayed GUI. The standby screen data 342 is image data read when the standby screen is displayed.

  The standby screen flag 344 is a flag for determining whether the display of the standby screen is notified. For example, the standby screen flag 344 is composed of a 1-bit register. When the standby screen flag 344 is turned on (established), a data value “1” is set in the register. On the other hand, when the standby screen flag 344 is turned off (not established), a data value “0” is set in the register.

  The screen off flag 346 is a flag for determining whether a screen off is notified. The configuration of the screen off flag 346 is substantially the same as that of the standby screen flag 344, and thus detailed description thereof is omitted.

The active counter 348 is also called an active timer, and starts counting when transitioning to an active period. When the active timer expires, the state transits to the dormant state. In addition, a value corresponding to “T ₀ seconds” (for example, 20 seconds) is set as the value at which the active counter 348 expires in the initial state. When the detection unit 70 detects a state in which no user operation is performed, the value at which the active counter 348 expires is changed (shortened).

  The data storage area 304 stores image data displayed in a standby state, character string data, and the like, and is provided with counters and flags necessary for the operation of the mobile phone 10.

  The processor 30 performs a display state detection process illustrated in FIG. 10 and a communication control process illustrated in FIG. 11 under the control of a Linux (registered trademark) -based OS such as Android (registered trademark) and REX, and other OSs. Including multiple tasks in parallel.

  The display state detection process is started, for example, when the mobile phone 10 is turned on. In step S1, the processor 30 determines whether a screen-off notification has been made. That is, the processor 30 determines whether the display driver 42 has notified the display 14 that the screen is off. If “YES” in the step S1, that is, if the screen off is notified, the processor 30 turns on the screen off flag 346 in a step S3. Then, when the process of step S3 ends, the processor 30 returns to step S1. On the other hand, if “NO” in the step S1, that is, if the screen off is not notified, the processor 30 turns off the screen off flag 346 in a step S5.

  Subsequently, in step S7, the processor 30 acquires the display content of the display 14. That is, the message output by the OS is read from the display content buffer 332. Subsequently, in step S9, the processor 30 determines whether or not the display content is a standby screen. That is, the processor 30 determines whether or not the message read from the display content buffer 332 has a content indicating a standby screen. If “YES” in the step S9, that is, if the standby screen is displayed, the processor 30 turns on the standby screen flag 344 in the step S11 and returns to the step S1. On the other hand, if “NO” in the step S11, that is, if a screen other than the standby screen is displayed, the processor 30 turns off the standby screen flag 344 in a step S13 and returns to the step S1.

  Note that the display state detection process ends when an operation for turning off the power of the mobile phone 10 is performed regardless of the flow of the flow. Further, the processor 30 that executes the processes of steps S1, S7, and S9 functions as the detection unit 70. In particular, the processor 30 that executes the process of step S1 functions as a first detection unit, and the processor 30 that executes the processes of steps S7 and S9 functions as a second detection unit.

  FIG. 11 is a flowchart of the communication control process. For example, when the power of the mobile phone 10 is turned on, the processor 30 determines whether or not there is a communication request in step S31. For example, the processor 30 determines whether there is a communication request from each function 62-66 being executed. Subsequently, in step S33, the processor 30 executes a communication content setting process. For example, the processor 30 stores the IP address information and the like included in the communication request in the communication content setting buffer 334.

Subsequently, in step S35, the processor 30 determines whether or not the screen off flag 346 is on. That is, the processor 30 determines whether the screen off is notified. If “YES” in the step S35, that is, if the screen off is notified, the processor 30 sets the active timer to “T ₃ ” in a step S37. In other words, the time when the active timer expires is set to “T ₃ seconds” (for example, 0 seconds) by the first dormant forced instruction. Note that when the process of step S37 ends, the processor 30 proceeds to step S43.

On the other hand, if “NO” in the step S35, that is, if the screen off of the display 14 is not notified, the processor 30 determines whether or not the standby screen flag 344 is turned on in a step S39. That is, the processor 30 determines whether the display of the standby screen is notified. If “YES” in the step S39, that is, if the display of the standby screen is notified, the processor 30 sets the active timer to “T ₂ ” in a step S41. That is, the time for the active timer to expire is set to “T ₂ seconds” (for example, 5 seconds). Then, if the process of step S39 ends or if “NO” in the step S39, the processor 30 proceeds to the step S43.

  The processor 30 that executes the processes of steps S37 and S41 functions as a shortening unit. In particular, the processor 30 that executes the process of step S37 functions as a first setting unit, and the processor 30 that executes the process of step S41 functions as a second setting unit.

In step S43, the processor 30 establishes wireless communication based on the set communication content. Based on the IP address stored in the communication content setting buffer 334, communication with a server connected to the network 102 is established. Further, when the communication period ends, the period transitions to the active period. At this time, if the time for the active timer (active counter 348) to expire is shortened, the state transits to the dormant state earlier than usual. When the first dormant forced instruction is issued, that is, when the active timer is set to “T ₃ seconds”, the active state is not maintained and the state transits to the dormant state.

Subsequently, in step S45, the processor 30 determines whether or not the state has transitioned to the dormant state. That is, it is determined whether the wireless communication is disconnected. If “NO” in the step S45, that is, if the transition to the dormant state is not made, the processor 30 repeats the process of the step S45. On the other hand, if “YES” in the step S45, that is, if a transition to the dormant state is made, it is determined whether or not the active timer is changed in a step S47. That is, it is determined whether the time when the active timer expires is “T ₀ seconds”. If “YES” in the step S47, that is, if the time when the active timer expires is changed, the processor 30 sets the active timer to “T ₀ ” in a step S49. That is, the time when the active timer expires is set to “T ₀ seconds” (for example, 20 seconds). Then, if the process of step S49 ends or if “NO” in the step S47, the processor 30 returns to the step S31.

  Note that the communication control process ends when an operation to turn off the power of the mobile phone 10 is performed regardless of the flow of the flow.

  Further, the state where the mobile phone 10 is not operated may be detected based on a touch operation on the touch panel 16 or a key operation on the hard keys 22-26. The display 14, the touch panel 16, and the hard keys 22-26 may be collectively referred to as an input / output interface.

In addition, T ₀ , T _1, and T ₂ in the above example satisfied the magnitude relationship of T ₀ <T ₂ <T ₁ , but this magnitude relationship can be arbitrarily changed as appropriate, and any two of these And three may have the same value. Also, the set value of the active timer is not limited to the above three types T ₀ , T ₁ and T ₂ , and the number may be increased as appropriate.

  The program used in this embodiment may be stored in the HDD of the data distribution server and distributed to the mobile phone 10 via the network. Further, the storage medium may be sold or distributed in a state where a plurality of programs are stored in a storage medium such as an optical disk such as a CD, a DVD, or a BD (Blue-Ray Disk), a USB memory, and a memory card. When the program downloaded through the server or storage medium described above is installed in a communication terminal having the same configuration as that of the present embodiment, the same effect as that of the present embodiment can be obtained.

  The specific numerical values given in this specification are merely examples, and can be appropriately changed according to a change in product specifications.

DESCRIPTION OF SYMBOLS 10 ... Mobile phone 14 ... Display 16 ... Touch panel 30 ... Processor 40 ... Input device 44 ... Flash memory 46 ... RAM
48 ... Touch panel control circuit

Claims (9)

display,
A wireless communication unit connected to the base station, and a communication unit that continues the connection with the base station for a predetermined time even when the wireless communication is terminated, and a processor,
Wherein the processor, when the display is Ri ON der, the screen displayed on the display is not idle screen, as the predetermined time, set the first time, when the screen is a standby screen, the predetermined A communication terminal that sets a second time shorter than the first time as the time . Wherein the processor, when the display is off, as the predetermined time is set shorter than the second time third time, the communication terminal according to claim 1. The communication terminal according to claim 2 , wherein the third time is 0 seconds. The idle screen is a screen for displaying an application icon, a communication terminal according to any one of claims 1 to 3.
Communication terminal. The idle screen other than the screen is a function screen corresponding to functions executable wireless communication, the communication terminal according to any one of claims 1 to 4. A plurality of functions capable of executing the wireless communication are provided,
The communication terminal according to claim 5 , wherein the processor executes in parallel at least two of the functions capable of executing the wireless communication.   The communication terminal according to claim 1, wherein the processor does not maintain a connection with the base station after the wireless communication ends when the display is off. A communication control program executed by a processor of a communication terminal provided with a display and a communication unit that communicates with a base station to perform wireless communication and continues the connection with the base station for a predetermined time even when the wireless communication ends. The communication control program causes the processor to
When the display is on, according to the screen displayed on the display, function as a time changing unit that changes the predetermined time ,
The time changing unit is
When the screen is not a standby screen, the first time is set as the predetermined time,
A communication control program for setting a second time shorter than the first time as the predetermined time when the screen is a standby screen . A communication control method in a communication terminal including a display and a base station for wireless communication, and a communication unit that continues the connection with the base station for a predetermined time even when the wireless communication ends,
When the display is Ri ON der, the screen displayed on the display is not idle screen, as the predetermined time, set the first time, when the screen is a standby screen, as the predetermined time, the A communication control method for setting a second time shorter than the first time .

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