KR20160004712A - Method for communicating wireless in accordance with an unauthorized frequency band and a electronic device implementing the same - Google Patents

Abstract

One embodiment of the present disclosure relates to a method of wirelessly communicating an electronic device in an unlicensed frequency band and an electronic device implementing the same, the method comprising: communicating with at least one external electronic device via wireless communication; Encoding the sound signal received via the audio module at a first bit rate; Changing the first bit rate to a second bit rate according to whether a data signal is transmitted through the wireless communication; And transmitting the sound signal changed to the second bit rate to the external electronic device; . ≪ / RTI > Other embodiments are also possible.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of wireless communication in an unlicensed frequency band, and an electronic device implementing the method. [0002]

One embodiment of the present disclosure relates to a method of wireless communication in an unlicensed frequency band and an electronic device implementing the same.

The Industry-Science-Medical (ISM) band is the frequency band used by industrial, scientific, and medical devices and is unlicensed. The ISM band may include the 900 MHz band (902 to 928 MHz), the 2.4 GHz band (2.4 to 2.4835 MHz), and the 5.8 GHz band (5.725 to 5.850 MHz). In recent years, not only industrial, scientific, and medical devices but also small-power communication devices, which do not require permission, can communicate using the ISM band. The ISM band is an unlicensed frequency band that can be used easily without a separate authentication process.

The unlicensed frequency band (eg ISM band) can be used in short range communication. Interference may occur when multiple electronic devices use the ISM band in close proximity. Also, when communicating through the ISM band, the communication channel of the frequency band may be unstable due to the influence of the surrounding environment and the use environment. For example, the communication channel of the ISM band can be shared by various electronic devices due to the nature of the unlicensed frequency band. Accordingly, the communication channel of the ISM band may be unstable due to an interference phenomenon occurring between a plurality of electronic devices. Also, as data transmitted / received using the ISM band communication channel increases, the communication congestion increases, and the communication channel of the ISM band may become unstable due to an increase in communication congestion.

For example, when voice communication is performed using PTT (Push To Talk), an interference phenomenon may occur between a plurality of electronic devices. Or an increase in the amount of data to be transmitted increases the degree of communication congestion, which may result in a disruption of speech or distortion of the sound signal. Accordingly, in various embodiments, it is possible to provide a method capable of real-time transmission of a loss of information of a sound signal in an unauthorized frequency band (e.g., ISM band) to a selected range or less and an electronic device supporting the same. It is also possible to provide a method for preventing or insensitivity to a sudden change in the quality of a sound signal and an electronic device supporting the same.

Other problems obvious to those skilled in the art in light of the problems described above or those described in the present invention can be improved.

A method of operating an electronic device in accordance with an embodiment of the present disclosure, the method comprising: communicating with at least one external electronic device via wireless communication; Encoding the sound signal received via the audio module at a first bit rate; Changing the first bit rate to a second bit rate according to whether a data signal is transmitted through the wireless communication; And transmitting the sound signal changed to the second bit rate to the external electronic device; . ≪ / RTI >

An electronic device for wireless communication in an unlicensed frequency band according to an embodiment of the present disclosure includes an encoder bit rate setting module for changing an encoder bit rate; Memory; A communication module for transmitting a sound signal and a data signal; An audio module for receiving the sound signal; And a control unit for controlling the communication unit to communicate with at least one external electronic device through wireless communication using the communication module, encode the received sound signal at a first bit rate, A processor that changes the rate to a second bit rate and transmits the sound signal changed to the second bit rate to the external electronic device; . ≪ / RTI >

According to various embodiments, when the sound signal and the data signal are transmitted simultaneously in the unlicensed frequency band, the sound signal is affected by the data signal, information of the sound signal is lost, and the sound signal may be interrupted or distorted. In order to prevent this, the electronic device according to various embodiments may change the sound signal to a predetermined bit rate threshold so that the sound signal is not lost when transmitting the data signal while transmitting the sound signal. That is, the electronic device can control the bit rate of the sound signal so that even when the sound signal and the data signal are simultaneously transmitted, the information loss of the sound signal is transmitted in a state of less than the selected range. In addition, the electronic device can change the bit rate of the sound signal sequentially, thereby preventing the user from feeling a change in quality of the sound signal or making the sound signal insensitive.

1 illustrates a network environment including an electronic device according to various embodiments.
Figure 2 shows an encoder bit rate setting module in accordance with one embodiment of the present disclosure.
Figure 3 shows a block diagram of an electronic device according to various embodiments.
4 is a diagram illustrating a structure for transmitting a sound signal and a data signal between electronic devices using a PTT service according to an embodiment of the present disclosure.
5 is a diagram illustrating transmission of a sound signal and a data signal in a stable communication environment and an unstable communication environment according to an embodiment of the present disclosure.
6 is a flowchart for explaining an operation of changing a bit rate of a sound signal when transmitting a data signal while transmitting and receiving a sound signal according to an embodiment of the present disclosure.
7 is a flow chart illustrating an operation for changing the bit rate of a sound signal based on the number of connected electronic devices according to another embodiment of the present disclosure;
8 is a flowchart illustrating an operation of changing a bit rate of a sound signal based on a transmission rate of a data signal according to another embodiment of the present disclosure.
9 is a flowchart for explaining an operation of changing a bit rate of a sound signal based on a sensitivity value of a data signal sound signal according to another embodiment of the present disclosure.
10 is a flowchart illustrating an operation of changing a bit rate of a data signal when transmitting a sound signal while transmitting and receiving a data signal according to another embodiment of the present disclosure.

Best Mode for Carrying Out the Invention Various embodiments of the present invention will be described below with reference to the accompanying drawings. The various embodiments are capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in the detailed description. It should be understood, however, that it is not intended to limit the various embodiments to the specific embodiments, but includes all changes and / or equivalents and alternatives falling within the spirit and scope of the various embodiments. In connection with the description of the drawings, like reference numerals have been used for like elements.

It should be noted that the terms such as " comprises "or" may include "may be used in various embodiments to indicate the presence of a corresponding function, operation or component, . Also, in various embodiments of the invention, the terms "comprise" or "having" are intended to specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, But do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In various embodiments, "or " or" etc. " includes any and all combinations of words listed together. For example, "A or B" may comprise A, comprise B, or both A and B.

The terms "first," "second," "first," or "second," etc. used in various embodiments may modify various elements of various embodiments, For example, the representations do not limit the order and / or importance of the components. The representations may be used to distinguish one component from another. For example, both the first user equipment and the second user equipment are user equipment and represent different user equipment. For example, without departing from the scope of the various embodiments of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it is to be understood that the element may be directly connected or connected to the other element, It should be understood that there may be other new components between the different components. On the other hand, when it is mentioned that an element is "directly connected" or "directly connected" to another element, it is understood that there is no other element between the element and the other element It should be possible.

The terminology used in the various embodiments is used only to describe a specific embodiment and is not intended to limit the various embodiments of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present invention belong. Terms such as those defined in commonly used dictionaries should be construed to have meanings consistent with the meaning in the context of the relevant art and, unless expressly defined in the various embodiments, interpreted in an ideal or overly formal sense It does not.

The electronic device according to various embodiments may be a device including a communication function. For example, the electronic device can be a smartphone, a tablet personal computer, a mobile phone, a videophone, an e-book reader, a desktop personal computer, a laptop Such as a laptop personal computer (PC), a netbook computer, a personal digital assistant (PDA), a portable multimedia player (PMP), an MP3 player, a mobile medical device, a camera, or a wearable device Such as a head-mounted-device (HMD) such as electronic glasses, an electronic garment, an electronic bracelet, an electronic necklace, an electronic app apparel, an electronic tattoo, or a smartwatch.

According to some embodiments, the electronic device may be a smart home appliance with communication capabilities. [0003] Smart household appliances, such as electronic devices, are widely used in the fields of television, digital video disk (DVD) player, audio, refrigerator, air conditioner, vacuum cleaner, oven, microwave oven, washing machine, air cleaner, set- And may include at least one of a box (e.g., Samsung HomeSync ™, Apple TV ™, or Google TV ™), game consoles, an electronic dictionary, an electronic key, a camcorder,

According to some embodiments, the electronic device may be a variety of medical devices (e.g., magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), computed tomography (CT) (global positioning system receiver), EDR (event data recorder), flight data recorder (FDR), automotive infotainment device, marine electronic equipment (eg marine navigation device and gyro compass), avionics, A security device, a head unit for a vehicle, an industrial or home robot, an ATM (automatic teller's machine) of a financial institution, or a POS (point of sale) of a shop.

According to some embodiments, the electronic device may be a piece of furniture or a structure / structure including a communication function, an electronic board, an electronic signature receiving device, a projector, (E.g., water, electricity, gas, or radio wave measuring instruments, etc.). The electronic device according to various embodiments may be one or more of the various devices described above. Further, the electronic device according to various embodiments of the present invention may be a flexible device. It should be apparent to those skilled in the art that the electronic device according to various embodiments of the present invention is not limited to the above-described devices.

According to various embodiments, the electronic device may be comprised of a heterogeneous multicore processor comprising at least two cores of different types. The multicore processor may be composed of different computing devices, for example, X86, X64, ARM, GPU, and DSP.

In various embodiments, a " processor " includes at least one core and can be defined in units that can be interlocked with other components of the device independently.

In various embodiments, the 'computing device may be defined as a minimal unit of device capable of executing and processing instructions within the processor and may be interpreted in the same sense as the "core ".

Hereinafter, an electronic device according to various embodiments will be described with reference to the accompanying drawings. The term user as used in various embodiments may refer to a person using an electronic device or a device using an electronic device (e.g., an artificial intelligence electronic device).

1 illustrates a network environment 100 including an electronic device 101, in accordance with various embodiments. Referring to FIG. 1, the electronic device 101 may include a bus 110, a processor 120, a memory 130, an input / output interface 140, a display 150, a communication interface 160, and an encoder bit rate setting module 170.

The bus 110 may be a circuit that interconnects the components described above and communicates (e.g., control messages) between the components described above.

The processor 120 may communicate with other components (e.g., the memory 130, the input / output interface 140, the display 150, the communication interface 160, or the encoder bit rate setting module 170, etc.) via the bus 110 ), Decrypt the received command, and execute an operation or data processing according to the decrypted command.

The memory 130 may be received from the processor 120 or other components (e.g., the input / output interface 140, the display 150, the communication interface 160, or the encoder bit rate setting module 170) Lt; RTI ID = 0.0 > and / or < / RTI > The memory 130 may include, for example, a kernel 131, a middleware 132, an application programming interface (API) 133, or an application 134. Each of the above-described programming modules may be composed of software, firmware, hardware, or a combination of at least two of them.

The kernel 131 may include system resources (e.g., the bus 110, the processor 120, etc.) used to execute the operations or functions implemented in the other programming modules, e.g., the middleware 132, the API 133, Or the memory 130 and the like). In addition, the kernel 131 may provide an interface for accessing and controlling or managing individual components of the electronic device 101 in the middleware 132, the API 133, or the application 134.

The middleware 132 can act as an intermediary for the API 133 or the application 134 to communicate with the kernel 131 to exchange data. In addition, the middleware 132 may be configured to communicate with at least one of the applications 134, for example, system resources of the electronic device 101 (e.g., the bus 110, the processor 120, or the like) (E.g., scheduling or load balancing) of a work request using a method of assigning a priority that can be used to the job (e.g., the memory 130).

The API 133 is an interface for the application 134 to control the functions provided by the kernel 131 or the middleware 132 and includes at least one interface or function for file control, window control, image processing, (E.g., commands).

According to various embodiments, the application 134 may be an SMS / MMS application, an email application, a calendar application, an alarm application, a health care application (e.g., an application that measures momentum or blood glucose) Pressure, humidity, or temperature information, etc.), and the like. Additionally or alternatively, the application 134 may be an application related to the exchange of information between the electronic device 101 and an external electronic device (e.g., electronic device 104). The application associated with the information exchange may include, for example, a notification relay application for communicating specific information to the external electronic device, or a device management application for managing the external electronic device .

For example, the notification delivery application may send notification information generated by another application (e.g., SMS / MMS application, email application, healthcare application, or environment information application) of the electronic device 101 to an external electronic device ). ≪ / RTI > Additionally or alternatively, the notification delivery application may receive notification information from, for example, an external electronic device (e.g., electronic device 104) and provide it to the user. The device management application may provide a function (e.g., turn-on / turn-off) of at least some of the external electronic device (e.g., electronic device 104) in communication with the electronic device 101 (E.g., adjusting, turning off, or adjusting the brightness (or resolution) of the display), managing an application running on the external electronic device or services (e.g., call service or message service) )can do.

According to various embodiments, the application 134 may include an application designated according to attributes (e.g., the type of electronic device) of the external electronic device (e.g., electronic device 104). For example, if the external electronic device is an MP3 player, the application 134 may include an application related to music playback. Similarly, if the external electronic device is a mobile medical device, the application 134 may include applications related to health care. According to one embodiment, the application 134 may include at least one of an application specified in the electronic device 101 or an application received from an external electronic device (e.g., the server 106 or the electronic device 104).

The input / output interface 140 connects commands or data input from a user via an input / output device (e.g., a sensor, a keyboard or a touch screen) to the processor 120, the memory 130, the communication interface 160 , Or to the encoder bit rate setting module 170. For example, the input / output interface 140 may provide the processor 120 with data on the user's touch input through the touch screen. The input / output interface 140 is connected to the processor 120, the memory 130, the communication interface 160, or the encoder bit rate setting module 170 via the bus 110, for example, : Speaker or display). For example, the input / output interface 140 may output a sound signal processed through the processor 120 to a user through a speaker.

The display 150 may display various information (e.g., multimedia data or text data) to the user.

The communication interface 160 can connect communication between the electronic device 101 and an external device (e.g., the electronic device 104 or the server 106). For example, the communication interface 160 may be connected to the network 162 via wireless or wired communication to communicate with the external device (e.g., the electronic device 104 or the server 106). The wireless communication may include, for example, wireless fidelity, Bluetooth, near field communication (NFC), global positioning system (GPS) , WiBro or GSM, etc.). The wired communication may include at least one of, for example, a universal serial bus (USB), a high definition multimedia interface (HDMI), a recommended standard 232 (RS-232) or a plain old telephone service (POTS).

According to one embodiment, the network 162 may be a telecommunications network. The communication network may include at least one of a computer network, an internet, an internet of things, or a telephone network. (E.g., a transport layer protocol, a data link layer protocol, or a physical layer protocol) for communication between the electronic device 101 and the external device is controlled by the application 134, the application programming interface 133, the middleware 132, the kernel 131 Or the communication interface 160. [0035]

According to various embodiments, the encoder bit rate setting module 170 senses the transmission of a sound signal and a data signal, and when the sound signal and the data signal are simultaneously transmitted, a bit rate (E.g., an encoder bit rate). Here, the encoder bit rate may be a bit rate value set by encoding the sound signal and the data signal. The encoder bit rate setting module 170 may set the bit rate of the sound signal and the data signal (e.g., moving image, image) to any specific value. Here, any specific value may be a value preset by the developer or a specific value determined based on another numerical value.

Figure 2 shows an encoder bit rate setting module in accordance with one embodiment of the present disclosure.

Referring to FIG. 2, the encoder bit rate setting module 200 may be the encoder bit rate setting module 170 of FIG. The encoder bit rate setting module 200 may include a sound signal detection module 210 and a data signal detection module 220. The encoder bit rate setting module 200 may set (e.g., change) the bit rate (e.g., encoder bit rate) of the sound signal and data signal under the control of the processor 120. For example, the encoder bit rate setting module 200 may reduce the bit rate of the sound signal to reduce the total amount of data of the sound signal to be transmitted. When the bit rate of the sound signal is reduced, the sound quality of the sound signal may be lowered, but the loss of the sound signal may be kept below the selected range. Then, the sound signal detection module 210 can check whether the electronic device 101 transmits a sound signal, and the data signal detection module 210 can confirm whether or not the electronic device 101 transmits a data signal.

According to one embodiment of the present disclosure, the encoder bit rate setting module 200 checks whether the sound signal and the data signal are transmitted through the sound signal detection module 210 and the data signal detection module 220, and determines the bit rate of the sound signal and the data signal Can be set. For example, when the electronic device 101 transmits a sound signal, the encoder bit rate setting module 200 can confirm whether a data signal is transmitted through the data signal detection module 220. When transmitting a data signal, the encoder bit rate setting module 200 may change the bit rate of the sound signal and transmit the sound signal.

FIG. 3 illustrates a block diagram 300 of an electronic device 301 in accordance with various embodiments. The electronic device 301 may constitute all or part of the electronic device 101 shown in Fig. 1, for example. 3, the electronic device 301 includes at least one application processor (AP) 310, a communication module 320, a subscriber identification module (SIM) card 324, a memory 330, a sensor module 340, an input device 350, a display 360, An interface 370, an audio module 380, a camera module 391, a power management module 395, a battery 396, an indicator 397 and a motor 398.

The AP 310 may control a plurality of hardware or software components connected to the AP 310 by operating an operating system or an application program, and may perform various data processing and calculations including multimedia data. The AP 310 may be implemented as a system on chip (SoC), for example. According to one embodiment, the AP 310 may further include a graphics processing unit (GPU) (not shown).

The communication module 320 (e.g., the communication interface 160) can send and receive data in communication between the electronic device 301 (e.g., the electronic device 101) and other electronic devices (e.g., electronic device 104 or server 106) Can be performed. According to one embodiment, the communication module 320 may include a cellular module 321, a Wifi module 323, a BT module 325, a GPS module 327, an NFC module 328, and a radio frequency (RF) module 329.

The cellular module 321 may provide voice calls, video calls, text services, or Internet services over a communication network (e.g., LTE, LTE-A, CDMA, WCDMA, UMTS, WiBro or GSM). In addition, the cellular module 321 can perform identification and authentication of electronic devices within the communication network, for example, using a subscriber identity module (e.g., a SIM card 324). According to one embodiment, the cellular module 321 may perform at least some of the functions that the AP 310 may provide. For example, the cellular module 321 may perform at least some of the multimedia control functions.

According to one embodiment, the cellular module 321 may include a communication processor (CP). Also, the cellular module 321 may be implemented with SoC, for example. In FIG. 3, components such as the cellular module 321 (e.g., communication processor), the memory 330, or the power management module 395 are illustrated as separate components from the AP 310, but according to one embodiment, (E.g., cellular module 321) of the above-described components.

According to one embodiment, the AP 310 or the cellular module 321 (e.g., a communications processor) loads commands or data received from at least one of non-volatile memory or other components connected to each other into a volatile memory for processing can do. In addition, the AP 310 or the cellular module 321 may receive data from at least one of the other components, or may store data obtained by at least one of the other components in the non-volatile memory.

Each of the Wifi module 323, the BT module 325, the GPS module 327, and the NFC module 328 may include a processor for processing data transmitted and received through a corresponding module, for example. 3, the cellular module 321, the Wifi module 323, the BT module 325, the GPS module 327, and the NFC module 328 are shown as separate blocks, respectively. However, At least some (e.g., two or more) of the modules 327 or the NFC modules 328 may be included in one integrated chip (IC) or IC package. For example, at least some of the processors corresponding to the cellular module 321, the Wifi module 323, the BT module 325, the GPS module 327, or the NFC module 328, respectively (e.g., corresponding to the communication processor and Wifi module 323 corresponding to the cellular module 321) Wifi processor) can be implemented in a single SoC.

The RF module 329 can transmit and receive data, for example, transmit and receive RF signals. The RF module 329 may include, for example, a transceiver, a power amplifier module (PAM), a frequency filter, or a low noise amplifier (LNA). In addition, the RF module 329 may further include a component for transmitting and receiving electromagnetic waves in free space in a wireless communication, for example, a conductor or a lead wire. 3, the cellular module 321, the Wifi module 323, the BT module 325, the GPS module 327, and the NFC module 328 are shown sharing one RF module 329. However, according to one embodiment, the cellular module 321, the Wifi module 323 At least one of the BT module 325, the GPS module 327, and the NFC module 328 can transmit and receive an RF signal through a separate RF module.

The SIM card 324 may be a card including a subscriber identity module and may be inserted into a slot formed at a specific location of the electronic device. The SIM card 324 may include unique identification information (e.g., an integrated circuit card identifier (ICCID)) or subscriber information (e.g., international mobile subscriber identity (IMSI)).

The memory 330 (e.g., the memory 130) may include an internal memory 332 or an external memory 334. The built-in memory 332 may be a volatile memory (for example, a dynamic RAM, an SRAM, a synchronous dynamic RAM (SDRAM), or the like) or a non-volatile memory , At least one of an OTPROM (one time programmable ROM), a PROM (programmable ROM), an EPROM (erasable and programmable ROM), an EEPROM (electrically erasable and programmable ROM), a mask ROM, a flash ROM, a NAND flash memory, . ≪ / RTI >

According to one embodiment, the internal memory 332 may be a solid state drive (SSD). The external memory 334 may be a flash drive, for example, a compact flash (CF), a secure digital (SD), a micro secure digital (SD), a mini secure digital (SD), an extreme digital And the like. The external memory 334 may be operatively connected to the electronic device 301 through various interfaces. According to one embodiment, the electronic device 301 may further include a storage device (or storage medium) such as a hard drive.

The sensor module 340 may measure a physical quantity or sense an operation state of the electronic device 301, and convert the measured or sensed information into an electric signal. The sensor module 340 includes, for example, a gesture sensor 340A, a gyro sensor 340B, an air pressure sensor 340C, a magnetic sensor 340D, an acceleration sensor 340E, a grip sensor 340F, a proximity sensor 340G, blue sensor), a living body sensor 340I, a temperature / humidity sensor 340J, an illuminance sensor 340K, or an ultraviolet (UV) sensor 340M. Additionally or alternatively, the sensor module 340 may include, for example, an E-nose sensor (not shown), an EMG sensor (not shown), an EEG sensor (not shown) an electrocardiogram sensor (not shown), an infra red sensor (not shown), an iris sensor (not shown), or a fingerprint sensor (not shown). The sensor module 340 may further include a control circuit for controlling at least one sensor included in the sensor module 340.

The input device 350 may include a touch panel 352, a (digital) pen sensor 354, a key 356, or an ultrasonic input device 358. The touch panel 352 can recognize a touch input by at least one of an electrostatic type, a pressure sensitive type, an infrared type, and an ultrasonic type. The touch panel 352 may further include a control circuit. In electrostatic mode, physical contact or proximity recognition is possible. The touch panel 352 may further include a tactile layer. In this case, the touch panel 352 can provide a tactile response to the user.

The (digital) pen sensor 354 can be implemented using the same or similar method as receiving the touch input of the user, or using a separate recognition sheet, for example. The key 356 may include, for example, a physical button, an optical key or a keypad. The ultrasonic input device 358 is a device that can recognize data by sensing a sound wave from the electronic device 301 to a microphone (e.g., a microphone 388) through an input tool for generating an ultrasonic signal, and is capable of wireless recognition. According to one embodiment, the electronic device 301 may use the communication module 320 to receive user input from an external device (e.g., a computer or a server) connected thereto.

The display 360 (e.g., the display 150) may include a panel 362, a hologram device 364, or a projector 366. The panel 362 may be, for example, a liquid-crystal display (LCD) or an active-matrix organic light-emitting diode (AM-OLED). The panel 362 may be embodied, for example, in a flexible, transparent or wearable manner. The panel 362 may be formed of one module with the touch panel 352. The hologram device 364 can display a stereoscopic image in the air using the interference of light. The projector 366 can display an image by projecting light onto a screen. The screen may, for example, be located inside or outside the electronic device 301. According to one embodiment, the display 360 may further include control circuitry for controlling the panel 362, the hologram device 364, or the projector 366.

The interface 370 may include, for example, a high-definition multimedia interface (HDMI) 372, a universal serial bus (USB) 374, an optical interface 376, or a D-sub (D-subminiature) The interface 370 may be included, for example, in the communication interface 160 shown in FIG. Additionally or alternatively, the interface 370 may include, for example, a mobile high-definition link (MHL) interface, a secure digital (SD) card / multi-media card (MMC) interface, or an infrared data association can do.

The audio module 380 can convert sound and electric signals into both directions. At least some of the components of the audio module 380 may be included, for example, in the input / output interface 140 shown in FIG. The audio module 380 may process sound information input or output through, for example, a speaker 382, a receiver 384, an earphone 386, a microphone 388, or the like.

The camera module 391 can capture still images and moving images. The camera module 391 may include one or more image sensors (e.g., a front sensor or a rear sensor), a lens (not shown), an image signal processor ) Or a flash (not shown), such as an LED or xenon lamp.

The power management module 395 can manage the power of the electronic device 301. Although not shown, the power management module 395 may include, for example, a power management integrated circuit (PMIC), a charger integrated circuit (PMIC), or a battery or fuel gauge.

The PMIC can be mounted, for example, in an integrated circuit or a SoC semiconductor. The charging method can be classified into wired and wireless. The charging IC can charge the battery, and can prevent an overvoltage or an overcurrent from the charger. According to one embodiment, the charging IC may comprise a charging IC for at least one of a wired charging scheme or a wireless charging scheme. The wireless charging system may be, for example, a magnetic resonance system, a magnetic induction system or an electromagnetic wave system, and additional circuits for wireless charging may be added, such as a coil loop, a resonant circuit or a rectifier have.

The battery gauge can measure the remaining amount of the battery 396, the voltage during charging, the current or the temperature, for example. The battery 396 may store or generate electricity, and may supply power to the electronic device 301 using the stored or generated electricity. The battery 396 may include, for example, a rechargeable battery or a solar battery.

The indicator 397 may indicate a specific state of the electronic device 301 or a part thereof (e.g., the AP 310), for example, a boot state, a message state, or a charged state. The motor 398 can convert an electrical signal into a mechanical vibration. Although not shown, the electronic device 301 may include a processing unit (e.g., GPU) for mobile TV support. The processing device for supporting the mobile TV can process media data conforming to standards such as digital multimedia broadcasting (DMB), digital video broadcasting (DVB), or media flow.

An electronic device for wireless communication in an unlicensed frequency band according to an embodiment of the present disclosure includes an encoder bit rate setting module for changing an encoder bit rate; Memory; A communication module for transmitting a sound signal and a data signal; An audio module for receiving the sound signal; And a control unit for controlling the communication unit to communicate with at least one external electronic device through wireless communication using the communication module, encode the received sound signal at a first bit rate, A processor that changes the bit rate to a second bit rate and transmits the sound signal changed to the second bit rate to the external electronic device; . ≪ / RTI >

Each of the above-described components of the electronic device according to various embodiments may be composed of one or more components, and the name of the component may be changed according to the type of the electronic device. The electronic device according to various embodiments may be configured to include at least one of the above-described components, and some components may be omitted or further include other additional components. In addition, some of the components of the electronic device according to various embodiments may be combined into one entity, so that the functions of the components before being combined can be performed in the same manner.

The term "module" as used in various embodiments may mean a unit comprising, for example, one or a combination of two or more of hardware, software or firmware. A "module" may be interchangeably used with terms such as, for example, unit, logic, logical block, component or circuit. A "module" may be a minimum unit or a portion of an integrally constructed component. A "module" may be a minimum unit or a portion thereof that performs one or more functions. "Modules" may be implemented either mechanically or electronically. For example, a "module" in accordance with various embodiments of the present invention may be implemented as an application-specific integrated circuit (ASIC) chip, field-programmable gate arrays (FPGAs) And a programmable-logic device.

4 is a diagram illustrating a structure for transmitting a sound signal and a data signal between electronic devices using a PTT service according to an embodiment of the present disclosure.

Referring to FIG. 4, when using a PTT (Push To Talk) service in a wireless communication environment using an unlicensed frequency band (e.g., ISM band), the first electronic device 410 uses another electronic device as an intermediary, 420 to transmit the sound signal and the data signal. Here, the first electronic device 410 may be the electronic device 101 of FIG. 1 (e.g., electronic device 301 of FIG. 3). For example, the first electronic device 410 may retrieve electronic devices that utilize the PTT service via the communication module 320. Here, the PTT service is a service in which a plurality of electronic devices can perform wireless communication (e.g., sound signal and data signal transmission). For example, the PTT service may pre-register other electronic devices for the first electronic device 410 to wirelessly communicate with and connect to the registered electronic devices for wireless communication. The first electronic device 410 may retrieve other electronic devices previously registered through the communication module 320. [ The first electronic device 410 then couples the retrieved other electronic devices (e.g., first intermediate electronics 411, 413) and sends sound and data signals to the other connected electronic devices (e.g., the first intermediate electronic device 411, 413). The first intermediate electronic device 411 also searches for and connects other electronic devices (e.g., the second intermediate electronic device 415, 417) in the vicinity, and the other intermediate electronic devices 415, 417 to the sound signal and the data signal. Utilizing other electronic devices in the vicinity thus retrieved, the first electronic device can send and receive sound signals and data signals to the second electronic device 420.

5 is a diagram illustrating transmission of a sound signal and a data signal in a stable communication environment and an unstable communication environment according to an embodiment of the present disclosure.

Referring to FIG. 5, when the communication channel transmits the sound signal and the data signal in the stable state 510, the processor 120 can transmit the sound signal and the data signal without data loss. For example, a state 510 in which the communication channel is stable may be a state of communicating using an authorized electronic device in an authorized communication frequency band. On the other hand, when the communication channel transmits a sound signal and a data signal in an unstable state 520, the processor 120 can transmit the sound signal and the data signal with lost information. For example, in the case of using the ISM band which is the unlicensed frequency band, the communication channel of the ISM band may be in an unstable state due to the interference phenomenon generated between a plurality of electronic devices. The ISM band may be used by a number of electronic devices that are not authorized in the unlicensed band, which may be a frequency band with a high communication congestion (e.g., a communication channel is unstable). If the communication channel of the frequency band having a large communication congestion is unstable 520, the sound signal can be transmitted with loss of information. For example, a sound signal in which information is lost may be a sound signal in a state in which it is impossible to confirm the correct contents (e.g., voice) due to a sound cut or distortion of the sound.

6 is a flowchart for explaining an operation of changing a bit rate of a sound signal when transmitting a data signal while transmitting and receiving a sound signal according to an embodiment of the present disclosure.

Referring to FIG. 6, the electronic device 101 may be an electronic device that uses a PTT service under an unlicensed frequency band (e.g., ISM band). At operation 601, the processor 120 of the electronic device 101 can search for and connect to an electronic device to transmit and receive a sound signal through the PTT service. For example, the processor 120 may search for a previously registered electronic device through the communication module 320 and connect it to send and receive a sound signal with the searched electronic device. At operation 603, the processor 120 may send and receive sound signals to and from connected electronic devices. At operation 605, the processor 120 may determine whether to transmit a data signal. For example, when a user of the electronic device 101 converts a voice call into a video call, the processor 120 of the electronic device 101 transmits a data signal as well as a sound signal. Here, the data signal may be multimedia (music, video) or text (Text) as well as an image image. That is, the data signal may be the remaining signals of the digital signal except for the sound signal. If the data signal is not transmitted at operation 605, the processor 120 may send and receive a sound signal and terminate. However, when transmitting a data signal in operation 605, in operation 607, the processor 120 may control the encoder bit rate setting module 170 to change the bit rate of the sound signal. For example, when determining to transmit a data signal, the processor 120 may change the bit rate of the sound signal to a predetermined threshold value. Table 1 below shows example values in which the processor 120 lowers the bit rate of the sound signal to a preset threshold. Table 2 below shows example values in which processor 120 proportionally decreases the bit rate of the sound signal.

Referring to Tables 1 and 2, the processor 120 may determine whether a data signal is transmitted and lower the bit rate of the sound signal to a preset threshold value.

According to another embodiment of the present disclosure, the processor 120 may sequentially change the bit rate of the sound signal so that the user can experience a change in sound quality due to the bit rate change of the sound signal below a selected range. Table 3 below shows example values in which the processor 120 sequentially changes the bit rate of the sound signal to a preset threshold value.

Referring to Table 3, the processor 120 determines whether to transmit a data signal, and sequentially reduces the bit rate of the sound signal when transmitting the data signal. For example, if the preset threshold is 15.85 Kbps, the processor 120 does not lower the encoder bit rate of the sound signal of 23.85 Kbps to 15.85 Kbps at a time, but instead reduces the time interval to 19.85 Kbps and then to 15.85 Kbps have. In this manner, when the bit rate of the sound signal is sequentially lowered, the user can experience a change in sound quality of the sound signal below a selected range. Table 4 below shows exemplary values at which the processor 120 sequentially returns the bit rate of the sound signal when the transmission of the data signal is terminated.

In order to sequentially recover the bit rate of the sound signal in the same manner that the user can experience a change in the sound quality of the sound signal below the selective range by sequentially lowering the bit rate of the sound signal, It can be sensed below the range.

In operation 609, the processor 120 may transmit and receive a data signal and a sound signal having a bit rate changed to a threshold value.

The method according to an embodiment of the present disclosure can prevent the problem that the sound signal is cut off or distorted with respect to the sound signal since the bit rate of the sound signal is lowered to a preset threshold value.

7 is a flow chart illustrating an operation for changing the bit rate of a sound signal based on the number of connected electronic devices according to another embodiment of the present disclosure;

Referring to FIG. 7, operations 701 to 705 are the same as operations 601 to 605 of FIG. When transmitting a data signal at operation 705, at operation 707, the processor 120 may verify the number of electronic devices connected at operation 701 via the communication module 320. In operation 709, the processor 120 may change the bit rate of the sound signal based on the number of connected electronic devices.

 Also, although not shown, the processor 120 may check the hop count of the connected electronic device and change the bit rate of the sound signal based on the number of hops. For example, the processor 120 may change the bit rate of the sound signal when it is confirmed that more electronic devices are connected than the preset number of electronic devices. And processor 120 may not change the bit rate of the sound signal if less electronic devices are confirmed to be connected than the number of preset electronic devices. Although not shown, the processor 120 may adjust the bit rate threshold of the sound signal corresponding to the number of connected electronic devices. For example, the greater the number of connected electronic devices, the more the processor 120 can change the bit rate threshold of the sound signal to a lower value. In operation 711, the processor 120 may transmit and receive sound signals of the data signal and the changed encoder bit rate.

Also, although not shown, processor 120 may be configured to determine, based on at least one of a change in the number of connected electronic devices, a change in the number of hops of a connected external electronic device, a time period, a schedule, It is possible to check the transmission state of the wireless communication and perform the encoding in which the bit rate is changed based on the transmission state of the wireless communication. The transmission state of the wireless communication may take into account the stability of the communication channel, the capacity of the communication channel, and the speed of the communication channel. For example, if the communication channel capacity is large or the communication channel speed is high, the electronic device can reliably and quickly perform wireless communication. The electronic device according to the present invention may adjust and encode the variation range of the bit rate based on the transmission state of the wireless communication.

8 is a flowchart illustrating an operation of changing a bit rate of a sound signal based on a transmission rate of a data signal according to another embodiment of the present disclosure.

Referring to FIG. 8, operations 801 to 805 are the same as operations 601 to 605 of FIG. When transmitting a data signal at operation 805, the processor 120 may measure the transmission rate of the data signal at operation 807. In operation 809, the processor 120 may change the bit rate of the sound signal based on the transmission rate of the measured data signal. For example, the processor 120 may reduce the bit rate of the sound signal when the transmission rate is higher than the transmission rate threshold of the preset data signal. Also, a plurality of threshold values may be set, and a threshold value of the encoder bit rate may be determined based on a transmission rate of the measured data signal. In operation 811, the processor 120 may transmit and receive the data signal and the sound signal of the changed bit rate.

9 is a flowchart for explaining an operation of changing a bit rate of a sound signal based on a sensitivity value of a sound signal according to another embodiment of the present disclosure.

Referring to FIG. 9, operations 901 through 905 are the same as operations 601 through 605 in FIG. If the data signal is not transmitted at operation 905, the processor 120 may send and receive only the sound signal and terminate. However, when transmitting a data signal at operation 905, the processor 120 may measure the sensitivity value of the sound signal at operation 907. The processor 120 may determine a threshold value of a state in which the sound signal is not lost based on the measured sensitivity value of the sound signal. In operation 909, the processor 120 may change the bit rate of the sound signal based on the sensed value of the measured sound signal. For example, the processor 120 may change the bit rate of the sound signal to a lower value if the loss of the sound signal is large, based on the magnitude of the measured sensitivity value. In operation 911, the processor 120 may transmit and receive the data signal and the sound signal of the changed bit rate.

10 is a flowchart illustrating an operation of changing a bit rate of a data signal when transmitting a sound signal while transmitting and receiving a data signal according to another embodiment of the present disclosure.

Referring to FIG. 10, in operation 1001, the processor 120 of the electronic device 101 can search for and connect an electronic device to transmit and receive a data signal through the PTT service in the unlicensed frequency band. For example, the processor 120 may search for an electronic device previously registered through the communication module 320, and connect the electronic device to send and receive a data signal. In operation 1003, the processor 120 may transmit and receive data signals with the connected electronic devices. For example, the electronic device 101 may be in a state of making a video call or sharing an image with other electronic devices. In operation 1005, the processor 120 may determine whether to transmit the sound signal. If not transmitting a sound signal at operation 1005, the processor 120 may send and receive only the data signal and may terminate. On the other hand, in operation 1007, the processor 120 may change the bit rate of the data signal if transmission of the sound signal is determined in operation 1005. [ For example, as the processor 120 modifies and transmits the bit rate of the data signal, the quality of the transmitted data signal may be lowered. The data loss of the data signal does not occur even if the quality of the data signal is lowered. In operation 1009, the processor 120 can transmit and receive the data signal and the sound signal of the changed bit rate. Although not shown, the processor 120 may sequentially lower the bit rate of the data signal in the same manner as the bit rate of the sound signal is sequentially lowered in Fig. That is, the processor 120 can sequentially lower the bit rate of the data signal to experience a change in the quality of the data signal to be below a selected range. Also, although not shown, processor 120 may determine the number of connected electronic devices and change the bit rate of the data signal based on the number of connected electronic devices, in accordance with the embodiment of FIG. According to the embodiment of FIG. 8, the processor 120 may measure the transmission rate of the sound signal and change the bit rate of the data signal based on the measured transmission rate.

A method of wirelessly communicating an electronic device in an unlicensed frequency band according to an embodiment of the present disclosure, the method comprising: communicating with at least one external electronic device via wireless communication; Encoding the sound signal received via the audio module at a first bit rate; Changing the first bit rate to a second bit rate according to whether a data signal is transmitted through the wireless communication; And transmitting the sound signal changed to the second bit rate to the external electronic device; . ≪ / RTI >

According to various embodiments, at least some of the devices (e.g., modules or functions thereof) or methods (e.g., operations) may be stored in a computer-readable storage medium ). ≪ / RTI > The instructions, when executed by one or more processors, may cause the one or more processors to perform functions corresponding to the instructions. The computer readable storage medium may be, for example, the memory. At least some of the programming modules may be implemented (e.g., executed) by, for example, the processor. At least some of the programming modules may include, for example, modules, programs, routines, sets of instructions or processes, etc. to perform one or more functions.

The computer-readable recording medium includes a magnetic medium such as a hard disk, a floppy disk and a magnetic tape, an optical recording medium such as a CD-ROM (Compact Disc Read Only Memory), a DVD (Digital Versatile Disc) A magneto-optical medium such as a floppy disk, and a program command such as a read only memory (ROM), a random access memory (RAM), a flash memory, Module) that is configured to store and perform the functions described herein. The program instructions may also include machine language code such as those generated by a compiler, as well as high-level language code that may be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the various embodiments of the present invention, and vice versa.

Modules or programming modules according to various embodiments may include at least one or more of the elements described above, some of which may be omitted, or may further include other additional elements. Operations performed by modules, programming modules, or other components in accordance with various embodiments may be performed in a sequential, parallel, iterative, or heuristic manner. Also, some operations may be performed in a different order, omitted, or other operations may be added.

It is to be understood that both the foregoing description and the following detailed description are exemplary and explanatory only and are not intended to limit the scope of the present disclosure. Accordingly, the scope of the present disclosure should be construed as being included in the scope of the present disclosure in addition to the embodiments disclosed herein, all changes or modifications derived from the technical idea of the present disclosure.

100: Network environment 101, 104: Electronic device
106: server 110: bus
120: processor 130: memory
131: Kernel 132: Middleware
133: Application Programming Interface (API)
134: Application 140: I / O interface
150: Display 160: Communication interface
162: network 170: encoder bit rate setting module

Claims (20)

A method of operating an electronic device,
Communicating with at least one external electronic device via wireless communication;
Encoding the sound signal received via the audio module at a first bit rate;
Changing the first bit rate to a second bit rate according to whether a data signal is transmitted through the wireless communication; And
Transmitting the sound signal changed to the second bit rate to the external electronic device;
Lt; / RTI > The method according to claim 1,
And transmitting the data signal to the external electronic device together with the sound signal changed to the second bit rate. 3. The method of claim 2,
Measuring a transmission rate of the data signal;
And changing the second bit rate to a third bit rate based on a transmission rate of the measured data signal. 3. The method of claim 2,
And the second bit rate comprises at least one of 20% to 85% of the first bit rate. The method according to claim 1,
Measuring a sensitivity value of the sound signal;
And changing the second bit rate to a third bit rate based on the sensed value of the measured sound signal. 6. The method of claim 5,
The sensitivity value
Wherein the sound signal is a specific numerical value capable of confirming the quality level of the sound signal. The method according to claim 1,
Wherein the operation of changing the first bit rate to the second bit rate is performed by:
And changing the first bit rate to the second bit rate when transmission of the data signal is terminated in a state that the data signal is transmitted together with the sound signal,
Wherein the first bit rate is smaller than the second bit rate. The method according to claim 1,
The number of external electronic devices connected to the electronic device, the number of external electronic devices connected to the electronic device, the number of external electronic devices connected to the electronic device, the number of external electronic devices connected to the electronic device, Confirming a transmission state of the wireless communication based on at least one of a change in the number of hops of the external electronic device; And
And changing the second bit rate to a third bit rate based on the confirmed transmission status of the wireless communication. The method according to claim 1,
Wherein the wireless communication comprises non-cellular communication. The method according to claim 1,
Wherein the operation of changing the first bit rate to the second bit rate is performed by:
And sequentially changing over a different bit rate having a value between the first bit rate and the second bit rate.
The method according to claim 1,
Wherein the determining whether to transmit the data signal through the wireless communication comprises:
Receiving user input;
And determining whether to transmit the data signal corresponding to the received user input. The method according to claim 1,
Encoding the data signal at a third bit rate via the wireless communication;
Changing the third bit rate to a fourth bit rate according to whether the sound signal received through the audio module is transmitted;
And transmitting the sound signal to the external electronic device together with the data signal changed to the fourth bit rate. 13. The method of claim 12,
And changing the third bit rate to the fourth bit rate,
And sequentially changing the bit rate through another bit rate having a value between the third bit rate and the fourth bit rate. An encoder bit rate setting module for changing an encoder bit rate;
Memory;
A communication module for transmitting a sound signal and a data signal;
An audio module for receiving the sound signal;
And a control unit for controlling the communication unit to communicate with at least one external electronic device through wireless communication using the communication module, encode the received sound signal at a first bit rate, A processor that changes the bit rate to a second bit rate and transmits the sound signal changed to the second bit rate to the external electronic device; ≪ / RTI > 15. The method of claim 14,
The processor comprising:
And transmits the data signal to the external electronic device together with the sound signal changed to the second bit rate. 16. The method of claim 15,
The processor comprising:
Measuring a transmission rate of the data signal,
And changes the second bit rate to a third bit rate based on a transmission rate of the measured data signal. 16. The method of claim 15,
The processor comprising:
And changes the second bit rate to at least one of 20% to 85% of the first bit rate. 15. The method of claim 14,
The processor comprising:
The number of external electronic devices connected to the electronic device, the number of external electronic devices connected to the electronic device, the number of external electronic devices connected to the electronic device, the number of external electronic devices connected to the electronic device, A change in the second bit rate to a third bit rate based on at least one of a change in the number of hops of the external electronic device and a transmission state of the wireless communication, Device. 15. The method of claim 14,
The processor comprising:
And changing the first bit rate to the second bit rate sequentially through another bit rate having a value between the first bit rate and the second bit rate. CLAIMS What is claimed is: 1. A method of operating an electronic device, comprising: communicating with at least one external electronic device via wireless communication; Encoding the sound signal received via the audio module at a first bit rate; Changing the first bit rate to a second bit rate according to whether a data signal is transmitted through the wireless communication; And transmitting the sound signal changed to the second bit rate to the external electronic device.

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