Electronic device for controlling communication channel using wireless charging and operation method thereof

Abstract

According to various embodiments, an electronic device and a method for controlling the operation of the electronic device are disclosed. According to various embodiments of the present invention, the electronic device may include a wireless power receiving circuit, a wireless communication circuit, and a processor, wherein the processor is configured to: receive first identification information through a first in-band communication channel; when the connection through the first in-band communication channel is disconnected, connect the first external wireless communication circuit and the first out-of-band communication channel based on the first identification information; when the connection through the first out-of-band communication channel is disconnected, receive second identification information through a second in-band communication channel connected to a second external wireless power transmitting circuit located outside the portable communication device; when the connection through the second in-band communication channel is disconnected, if the connection through the first out-of-band communication channel is disconnected, disconnect the first out-of-band communication channel; and automatically connect the second external wireless communication circuit and the second out-of-band communication channel based on the second identification information. Various other embodiments are possible.

Description

Technical Field

[0001] The present disclosure relates to an electronic device capable of controlling a communication channel related to wireless charging. Background Art

[0002] There are many types of popular electronic devices, such as smart phones, tablet personal computers (PCs), personal digital assistants (PDAs), laptop PCs, and wearable devices.

[0003] Recently, these electronic devices are equipped with separate batteries for providing the power required to perform various functions. Some electronic devices may be provided with separate terminals to establish a wire connection with a power source to charge their own batteries.

[0004] The latest electronic devices may be designed to support wireless charging. This means that the battery of the latest electronic devices can be charged using the wireless charging function. Typically, wireless charging is performed near a power source, such as by placing the wirelessly chargeable electronic device on a charging pad to charge the battery of the device without a wired connection to a separate charging connector. Summary of the invention

[0005] Technical issues

[0006] The electronic device as the wireless power transmitting device and the electronic device as the wireless power receiving device may exchange charging-related data required for controlling power transmission or reception and data including information on the power transmitting device.

[0007] According to the Wireless Power Consortium (WPC) standard for wireless power charging, part of the frequency band used for wireless power transmission or reception is used for data transmission or reception, which is called an in-band communication scheme. In the in-band communication scheme, data can be transmitted or received via a coil configured for wireless power transmission or reception.

[0008] However, the in-band communication scheme has a disadvantage in that a communication frequency bandwidth is narrow compared to bandwidths of other communication schemes, thus resulting in a low data rate that generates interference and prevents smooth data transmission or reception.

[0009] Data communication between the wireless power transmitting device and the power receiving device may also be implemented in an out-of-band (OOB) communication scheme. In the case where there are electronic devices communicating in an in-band communication scheme and electronic devices communicating in an OOB communication scheme, a cross connection error may occur, thereby possibly interrupting power control.

[0010] Solution to the problem

[0011] According to one aspect of the present disclosure, an electronic device is provided. The electronic device includes a wireless power receiving circuit, a wireless communication circuit, and a processor, the processor being configured to control: using the wireless power receiving circuit to receive first identification information through a first in-band communication channel connected to a first external wireless power transmitting circuit outside the electronic device; when the first in-band communication channel is established between the wireless power receiving circuit and the first external wireless power transmitting circuit, using the wireless communication circuit to establish a first out-of-band communication channel with the first external wireless communication circuit based on the first identification information, the first external wireless communication circuit corresponding to the first wireless power transmitting circuit outside the electronic device; when the first out-of-band communication channel is established between the wireless communication circuit and the first external wireless communication circuit, using the wireless power receiving circuit to receive second identification information through a second in-band communication channel connected to a second external wireless power transmitting circuit outside the electronic device; when the first out-of-band communication channel is established between the wireless communication circuit and the first external wireless communication circuit, when the second in-band communication channel is established between the wireless power receiving circuit and the second external power transmitting circuit, disconnecting the first out-of-band communication channel; and using the wireless communication circuit to automatically establish a second out-of-band communication channel with the second external communication circuit based on the second identification information, the second external communication circuit corresponding to the second wireless power transmitting circuit outside the electronic device.

[0012] According to another aspect of the present disclosure, an operation method of an electronic device is provided. The operation method includes: using a wireless power receiving circuit to receive first identification information through a first in-band communication channel connected to a first external wireless power transmitting circuit outside the electronic device; when the first in-band communication channel is established between the wireless power receiving circuit and the first external wireless power transmitting circuit, using a wireless communication circuit to establish a first out-of-band communication channel with the first external wireless communication circuit based on the first identification information, the first external wireless communication circuit corresponding to the first wireless power transmitting circuit outside the electronic device; when the first out-of-band communication channel is established between the wireless communication circuit and the first external wireless communication circuit, using the wireless power receiving circuit to receive second identification information through a second in-band communication channel connected to a second external wireless power transmitting circuit outside the electronic device; when the second in-band communication channel is established between the wireless power receiving circuit and the second external power transmitting circuit while the first out-of-band communication channel is established, disconnecting the first out-of-band communication channel; and using the wireless communication circuit to automatically establish a second out-of-band communication channel with the second external wireless communication circuit based on the second identification information, the second external wireless communication circuit corresponding to the second wireless power transmitting circuit outside the electronic device.

[0013] Advantageous Effects of the Invention

[0014] As described above, the electronic device for controlling a wireless charging-related communication channel and the operating method thereof according to various embodiments of the present invention are advantageous in improving data transmission or reception speed using a wireless communication scheme supporting a higher data rate than an in-band communication scheme.

[0015] The electronic device for controlling wireless charging-related communication channels and the operating method thereof according to various embodiments of the present invention are advantageous in the following aspects: cross connection is avoided by preventing unintentional connection with unplanned power transmitting devices in a manner that utilizes the identification information of the power transmitting device to establish an OOB communication path with an appropriate power transmitting device.

[0016] An electronic device for controlling a wireless charging-related communication channel and an operating method thereof according to various embodiments of the present invention are advantageous in that cross connection is avoided by verifying the connection with an appropriate power transmitting device by comparing identification information received in a DMS OOB communication scheme with identification information received in an in-band communication scheme.

[0017] An electronic device for controlling a wireless charging-related communication channel and an operating method thereof according to various embodiments of the present invention are advantageous in that potential cross-connection with a neighboring electronic device communicating in an in-band communication scheme is avoided by releasing an OOB communication link when the electronic device is in a charging state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a block diagram showing a configuration of an electronic device according to various embodiments of the present disclosure;

[0019] Figure 2 is a block diagram showing a configuration of a power management module and a battery of an electronic device according to various embodiments of the present disclosure;

[0020] Figure 3 is a block diagram illustrating a configuration of a wireless communication module, a power management module, and an antenna module of an electronic device according to various embodiments of the present disclosure;

[0021] Figures 4a to 4c is a diagram for explaining wireless power transmission from an external electronic device to an electronic device according to various embodiments of the present disclosure;

[0022] Figure 5 is a diagram showing an electronic device and an external electronic device performing data communication through a first channel and a second channel according to an embodiment of the present disclosure;

[0023] Figure 6 is a signal flow chart showing a process of establishing a second communication channel by an electronic device according to various embodiments of the present disclosure;

[0024] Figure 7 is a signal flow chart illustrating a process in which an electronic device establishes a second communication channel using anonymous data according to various embodiments of the present disclosure;

[0025] Figure 8 is a signal flow chart illustrating a process in which an electronic device connected to an external electronic device through a second communication channel determines whether to maintain the second communication channel according to various embodiments of the present disclosure;

[0026] Figures 9 and 10 is a signal flow chart showing a process in which an electronic device releases a second communication channel according to various embodiments of the present disclosure;

[0027] Fig.11 is a signal flow chart illustrating a process in which an electronic device that does not support a second communication channel establishes a connection through a first communication channel according to various embodiments of the present disclosure;

[0028] Fig.12 and Fig.13 is a signal flow chart illustrating a process in which an electronic device releases a second communication channel when a change in a power receiving state is detected according to various embodiments of the present disclosure;

[0029] Fig.14 is a signal flow chart showing a process of establishing a first communication channel by an electronic device according to various embodiments of the present disclosure;

[0030] Fig.15 is a flowchart illustrating an operating method of an electronic device according to various embodiments of the present disclosure;

[0031] Fig.16 is a flowchart illustrating an operating method of an electronic device according to various embodiments of the present disclosure;

[0032] Fig.17 is a flowchart illustrating an operating method of an electronic device according to various embodiments of the present disclosure. DETAILED DESCRIPTION

[0033] Figure 1 1 is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments. Figure 1, the electronic device 101 in the network environment 100 may communicate with the electronic device 102 via the first network 198 (e.g., a short-range wireless communication network), or communicate with the electronic device 104 or the server 108 via the second network 199 (e.g., a long-range wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 via the server 108. According to an embodiment, the electronic device 101 may include a processor 120, a memory 130, an input device 150, a sound output device 155, a display device 160, an audio module 170, a sensor module 176, an interface 177, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a user identification module (SIM) 196, or an antenna module 197. In some embodiments, at least one of the components (e.g., the display device 160 or the camera module 180) may be omitted from the electronic device 101, or one or more other components may be added to the electronic device 101. In some embodiments, some of the components may be implemented as a single integrated circuit.For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illumination sensor) may be implemented to be embedded in the display device 160 (eg, a display).

[0034] The processor 120 may run, for example, software (e.g., program 140) to control at least one other component (e.g., hardware component or software component) of the electronic device 101 connected to the processor 120, and may perform various data processing or calculations. According to one embodiment, as at least part of the data processing or calculation, the processor 120 may load a command or data received from another component (e.g., sensor module 176 or communication module 190) into the volatile memory 132, process the command or data stored in the volatile memory 132, and store the resultant data in the non-volatile memory 134. According to an embodiment, the processor 120 may include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)) and an auxiliary processor 123 (e.g., a graphics processing unit (GPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is independent of or combined with the main processor 121 in operation. Additionally or alternatively, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or adapted to be specifically used for a specified function. The auxiliary processor 123 may be implemented separately from the main processor 121 , or as part of the main processor 121 .

[0035] When the main processor 121 is in an inactive (e.g., sleep) state, the auxiliary processor 123 may control at least some of the functions or states related to at least one component (e.g., display device 160, sensor module 176, or communication module 190) among the components of the electronic device 101 (not the main processor 121), or when the main processor 121 is in an active state (e.g., running an application), the auxiliary processor 123 may control at least some of the functions or states related to at least one component (e.g., display device 160, sensor module 176, or communication module 190) among the components of the electronic device 101 together with the main processor 121. According to an embodiment, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., camera module 180 or communication module 190) that is functionally related to the auxiliary processor 123.

[0036] The memory 130 may store various data used by at least one component of the electronic device 101 (e.g., the processor 120 or the sensor module 176). The various data may include, for example, software (e.g., the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a nonvolatile memory 134.

[0037] The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system (OS) 142 , middleware 144 , or applications 146 .

[0038] The input device 150 may receive commands or data to be used by other components (eg, the processor 120) of the electronic device 101 from outside the electronic device 101 (eg, a user). The input device 150 may include, for example, a microphone, a mouse, or a keyboard.

[0039] The sound output device 155 can output a sound signal to the outside of the electronic device 101. The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or playing records, and the receiver can be used for incoming calls. Depending on the embodiment, the receiver can be implemented as a separate part from the speaker, or as a part of the speaker.

[0040] The display device 160 may visually provide information to the outside of the electronic device 101 (e.g., a user). The display device 160 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the projector. According to an embodiment, the display device 160 may include a touch circuit adapted to detect a touch or a sensor circuit (e.g., a pressure sensor) adapted to measure the strength of a force caused by a touch.

[0041] The audio module 170 may convert sound into an electrical signal, or vice versa. According to an embodiment, the audio module 170 may obtain sound via the input device 150, or output sound via the sound output device 155 or an earphone of an external electronic device (e.g., electronic device 102) directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0042] The sensor module 176 may detect an operating state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a state of a user) outside the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0043] The interface 177 may support one or more specific protocols to be used to connect the electronic device 101 directly (e.g., wired) or wirelessly to an external electronic device (e.g., the electronic device 102). According to an embodiment, the interface 177 may include, for example, a high-definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.

[0044] The connection end 178 may include a connector, wherein the electronic device 101 can be physically connected to an external electronic device (e.g., the electronic device 102) via the connector. According to an embodiment, the connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0045] The haptic module 179 may convert the electrical signal into mechanical stimulation (eg, vibration or motion) or electrical stimulation that can be recognized by the user via his sense of touch or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0046] The camera module 180 may capture still images or moving images. According to an embodiment, the camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0047] The power management module 188 may manage power supply to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0048] The battery 189 may power at least one component of the electronic device 101. According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0049] The communication module 190 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently from the processor 120 (e.g., an application processor (AP)) and supporting direct (e.g., wired) communication or wireless communication. According to an embodiment, the communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a cellular network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules can be implemented as a single component (e.g., a single chip), or these various types of communication modules can be implemented as multiple components separated from each other (e.g., multiple chips). The wireless communication module 192 can identify and authenticate the electronic device 101 in a communication network (such as the first network 198 or the second network 199) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196.

[0050] The antenna module 197 may transmit or receive a signal or power to or from the outside of the electronic device 101 (e.g., an external electronic device). According to an embodiment, the antenna module 197 may include one or more antennas, and thus, at least one antenna suitable for a communication scheme used in a communication network (such as the first network 198 or the second network 199) may be selected by, for example, the communication module 190 (e.g., the wireless communication module 192). A signal or power may then be transmitted or received between the communication module 190 and the external electronic device via the selected at least one antenna.

[0051] At least some of the above components may be connected to each other via an inter-peripheral communication scheme (e.g., a bus, general purpose input output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and communicatively transmit signals (e.g., commands or data) therebetween.

[0052] According to an embodiment, a command or data may be sent or received between the electronic device 101 and the external electronic device 104 via the server 108 connected to the second network 199. Each of the electronic device 102 and the electronic device 104 may be a device of the same type as the electronic device 101, or a device of a different type from the electronic device 101. According to an embodiment, all or some operations to be executed in the electronic device 101 may be executed in one or more of the external electronic device 102, the external electronic device 104, or the server 108. For example, if the electronic device 101 should automatically execute a function or service or should execute a function or service in response to a request from a user or another device, the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service instead of executing the function or service, or the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service in addition to executing the function or service. The one or more external electronic devices that receive the request may execute the requested at least part of the function or service, or execute another function or another service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may provide the result as at least a partial reply to the request with or without further processing the result. To this end, for example, cloud computing technology, distributed computing technology, or client-server computing technology may be used.

[0053] Figure 2 2 is a block diagram 200 illustrating the power management module 188 and the battery 189 according to various embodiments. Figure 2 , the power management module 188 may include a charging circuit 210, a power conditioner 220, or a power meter 230. The charging circuit 210 may charge the battery 189 by using power supplied from an external power source outside the electronic device 101. According to an embodiment, the charging circuit 210 may select a charging scheme (e.g., normal charging or fast charging) based at least in part on the type of the external power source (e.g., a power outlet, USB, or wireless charging), a power value that can be provided from the external power source (e.g., about 20 watts or more), or a property of the battery 189, and may charge the battery 189 using the selected charging scheme. The external power source may be directly connected to the electronic device 101 via the connection terminal 178, for example, or wirelessly connected to the electronic device 101 via the antenna module 197.

[0054] The power regulator 220 can generate a variety of power with different voltage levels or different current levels by adjusting the voltage level or current level of the power supplied from the external power source or the battery 189. The power regulator 220 can adjust the voltage level or current level of the power supplied from the external power source or the battery 189 to different voltage levels or current levels suitable for each of some components included in the electronic device 101. According to an embodiment, the power regulator 220 can be implemented in the form of a low dropout (LDO) regulator or a switching regulator. The power meter 230 can measure the use status information about the battery 189 (for example, the capacity of the battery 189, the number of times of charging or discharging, the voltage or the temperature).

[0055] The power management module 188 may use, for example, the charging circuit 210, the power conditioner 220, or the power meter 230 to determine charging status information related to the charging of the battery 189 (e.g., life, overvoltage, low voltage, overcurrent, overcharge, overdischarge, overheat, short circuit, or expansion) based at least in part on the measured usage status information about the battery 189. The power management module 188 may determine whether the state of the battery 189 is normal or abnormal based at least in part on the determined charging status information. If the state of the battery 189 is determined to be abnormal, the power management module 188 may adjust the charging of the battery 189 (e.g., reduce the charging current or voltage, or stop charging). According to an embodiment, at least some of the functions of the power management module 188 may be performed by an external control device (e.g., the processor 120).

[0056] According to an embodiment, the battery 189 may include a protection circuit module (PCM) 240. The PCM 240 may perform one or more of various functions (e.g., a pre-cutoff function) for preventing performance deterioration or damage of the battery 189. Additionally or alternatively, the PCM 240 may be configured as at least a portion of a battery management system (BMS), wherein the BMS is capable of performing various functions including cell balancing, measurement of battery capacity, counting of the number of times of charging or discharging, measurement of temperature, or measurement of voltage.

[0057] According to an embodiment, at least a portion of the charging state information or the usage state information about the battery 189 may be measured using a corresponding sensor (e.g., a temperature sensor) of the sensor module 176, the power meter 230, or the power management module 188. According to an embodiment, the corresponding sensor (e.g., a temperature sensor) of the sensor module 176 may be included as a part of the PCM 240, or may be arranged near the battery 189 as a separate device.

[0058] Figure 3 3 is a block diagram 300 showing the wireless communication module 192, the power management module 188, and the antenna module 197 of the electronic device 11 according to various embodiments. Figure 3 , the wireless communication module 192 may include a magnetic secure transmission (MST) communication module 310 or a near field communication (NFC) module 330, and the power management module 188 may include a wireless charging module 350. In this case, the antenna module 197 may include a plurality of antennas, wherein the plurality of antennas include an MST antenna 397-1 connected to the MST communication module 310, an NFC antenna 397-3 connected to the NFC communication module 330, and a wireless charging antenna 397-5 connected to the wireless charging module 350. For ease of description, the description related to Figure 1 The same parts as described.

[0059] The MST communication module 310 may receive a signal containing control information or payment information (such as card information) from the processor 120, generate a magnetic signal corresponding to the received signal, and then transmit the generated magnetic signal to the external electronic device 102 (e.g., a point of sale (POS) device) via the MST antenna 397-1. In order to generate the magnetic signal, according to an embodiment, the MST communication module 310 may include a switch module (not shown), and control the switch module to change the direction of the voltage or current provided to the MST antenna 397-1 according to the received signal, wherein the switch module includes one or more switches connected to the MST antenna 397-1. The change in the direction of the voltage or current causes the direction of the magnetic signal (e.g., magnetic field) emitted from the MST antenna 397-1 to change accordingly. If the magnetic signal whose direction has been changed is detected at the external electronic device 102, the effect (e.g., waveform) caused by the magnetic signal is similar to the effect of the magnetic field generated when the magnetic card corresponding to the card information associated with the received signal is swiped through the card reader of the electronic device 102. According to an embodiment, for example, the payment-related information and the control signal received by the electronic device 102 in the form of a magnetic signal may be further transmitted to the external server 108 (eg, a payment server) via the network 199 .

[0060] The NFC communication module 330 may obtain a signal including control information or payment information (such as card information) from the processor 120 and transmit the obtained signal to the external electronic device 102 via the NFC antenna 397-3. According to an embodiment, the NFC communication module 330 may receive such a signal transmitted from the external electronic device 102 via the NFC antenna 397-3.

[0061] The wireless charging module 350 may wirelessly transmit power to an external electronic device 102 (e.g., a cellular phone or a wearable device) via a wireless charging antenna 397-5, or wirelessly receive power from an external electronic device 102 (e.g., a wireless charging device). The wireless charging module 350 may support one or more of various wireless charging schemes including, for example, a magnetic resonance scheme or a magnetic induction scheme.

[0062] According to an embodiment, some of the MST antenna 397-1, the NFC antenna 397-3, or the wireless charging antenna 397-5 may share at least part of their radiators. For example, the radiator of the MST antenna 397-1 may be used as the radiator of the NFC antenna 397-3 or the wireless charging antenna 397-5, and vice versa. In this case, the antenna module 197 may include a switch circuit (not shown) adapted to selectively connect (e.g., close) or disconnect (e.g., open) at least part of the antenna 397-1, 397-3, or 397-5, for example, under the control of the wireless communication module 192 (e.g., the MST communication module 310 or the NFC communication module 330) or the power management module (e.g., the wireless charging module 350). For example, when the electronic device 101 uses the wireless charging function, the NFC communication module 330 or the wireless charging module 350 can control the switching circuit to temporarily disconnect at least a portion of the radiator shared by the NFC antenna 397-3 and the wireless charging antenna 397-5 from the NFC antenna 397-3, and connect the at least a portion of the radiator to the wireless charging antenna 397-5.

[0063] According to an embodiment, at least one function of the MST communication module 310, the NFC communication module 330, or the wireless charging module 350 may be controlled by an external processor (e.g., the processor 120). According to an embodiment, at least one designated function (e.g., a payment function) of the MST communication module 310 or the NFC communication module 330 may be executed in a trusted execution environment (TEE). According to an embodiment, the TEE may form an execution environment in which, for example, at least some designated areas of the memory 130 are allocated for executing functions requiring a relatively high level of security (e.g., financial transaction functions or personal information related functions). In this case, for example, access to the at least some designated areas of the memory 130 may be restrictively permitted according to an entity accessing the memory 130 or an application running in the TEE.

[0064] although Figure 3The MST communication module 310, the NFC communication module 330, and the wireless charging module 350 are depicted as being connected to respective antennas, but at least two modules may be connected to one antenna. For example, the MST communication module 310 and the wireless charging module 350 may be connected to the same coil antenna for transmitting or receiving MST signals, or for wirelessly transmitting or receiving power.

[0065] Figure 4a is a diagram illustrating an electronic device and a power transmission device for wirelessly supplying power to the electronic device according to various embodiments of the present disclosure.

[0066] According to various embodiments of the present disclosure, the first electronic device 401 may receive power from an external electronic device 402 (e.g., the electronic device 102). When the external electronic device 402 is close to the first electronic device 401 (e.g., within a predetermined distance), the external electronic device 402 may provide power to the first electronic device 401 wirelessly.

[0067] According to various embodiments of the present disclosure, the external electronic device 402 may transmit power to the first electronic device 401 according to a standard established by the Wireless Power Consortium (WPC). The power transmission device 402 and the first electronic device 401 may exchange data via a power line established between them. The external electronic device 402 and the first electronic device 401 may send / receive data on a first communication channel 441 established using a partial frequency band of the wireless power transmission frequency band. The first electronic device 401 and the external electronic device 402 may exchange various data through the first communication channel 441, including wireless charging related information, identification information of the external electronic device 402, identification information of the first electronic device 401, authentication information of the external electronic device 402, charging mode switching information of the external electronic device 402, and charging related information including data indicating the wireless power reception state. The data transmitted on the first communication channel 441 may be generated in the form of a packet encrypted with one of various encryption algorithms.

[0068] According to various embodiments of the present disclosure, the first communication channel 441 may be a communication channel established for in-band communication using a partial frequency band of the wireless power transmission frequency band. Data may be transmitted / received via a coil configured for wireless power transmission / reception.

[0069] According to various embodiments of the present disclosure, the bandwidth allocated to the first communication channel 441 may be narrower than the bandwidth allocated to other communication schemes. The first communication channel 441 may support a data rate in the range of 20 to 250 bytes / second (e.g., approximately 250 bytes / second for ASK-encoded data from the first electronic device 401 to the external electronic device 402; approximately 20 bytes / second for FSK-encoded data from the external electronic device 402 to the first electronic device 401), and in the case of using the first communication channel 441, a relatively low data rate may disrupt smooth data transmission / reception.

[0070] According to various embodiments of the present disclosure, the first electronic device 401 and the external electronic device 402 may use the second communication channel 451 instead of the first communication channel 441 for data communication. The second communication channel 451 may be a communication channel used in an out-of-band (OOB) communication scheme for short-range wireless data communication (e.g., Bluetooth, NFC, and Wi-Fi) between the first electronic device 401 and the external electronic device 402. According to various embodiments of the present disclosure, the bandwidth allocated to the second communication channel 451 may be wider than the bandwidth allocated to the first communication channel 441. The first electronic device 401 and the external electronic device 402 may communicate data through the second communication channel 451. The first electronic device 401 and the external electronic device 402 may exchange various types of data through the second communication channel 441, including wireless charging related information, identification information of the external electronic device 402, identification information of the first electronic device 401, authentication information of the external electronic device 402, and charging mode switching information of the external electronic device 402.

[0071] According to various embodiments of the present disclosure, the first electronic device 401 may include a wireless power receiving circuit 410 (e.g., a charging circuit 210), a battery 420 (e.g., a battery 189), a wireless communication circuit 430 (e.g., a wireless communication module 192) and a processor 440 (e.g., a processor 120).

[0072] According to various embodiments of the present disclosure, the wireless power receiving circuit 410 may receive power from the external electronic device 402 to charge the battery 420. The wireless power receiving circuit 410 may receive power from the external electronic device 402 according to various protocols, including protocols specified in the WPC standard and the Power Utilities Alliance (PMA) standard. In addition, according to various embodiments of the present disclosure, the wireless power receiving circuit 410 may perform data communication with the external electronic device 402 through the first communication channel 441.

[0073] According to various embodiments of the present disclosure, the wireless communication circuit 430 may use a short-range wireless communication scheme (e.g., Bluetooth, Wi-Fi, NFC, etc.) to perform data communication with the external electronic device 402. The wireless communication circuit 430 may perform data communication with the external electronic device 402 through the second communication channel 451.

[0074] According to various embodiments of the present disclosure, the processor 440 may receive a signal for establishing a second communication channel 451 from the external electronic device 402 through the first communication channel 441. The processor 440 may send first identification information associated with the first electronic device 401 in response to receiving the signal for establishing the second communication channel 451, and then send a signal for requesting second identification information associated with the external electronic device 402. The signal for establishing the second communication channel 451 may include an indicator indicating whether the external electronic device 402 supports the second communication channel 451, address data of the external electronic device 402 for the second communication channel 451, and information associated with the second communication channel 451. Data conveyed in the signal for establishing the second communication channel 451 may be encrypted in various ways (e.g., an anonymous data packet (anonymous packet)).

[0075] According to various embodiments of the present disclosure, the first identification information and a signal for requesting the second identification information may be transmitted to the external electronic device 402 through the first communication channel 441 .

[0076] The first identification information may include an identifier associated with the first electronic device 401 transmitted through the first communication channel 441. The second identification information may include an identifier associated with the external electronic device 402 transmitted through the first communication channel 441. There may be third identification information including an identifier associated with the external electronic device 402 transmitted through the second communication channel 451. There may be fourth identification information including an identifier associated with the first electronic device 401 transmitted through the second communication channel 451.

[0077] The first identification information can be used to distinguish the first electronic device 401 from other electronic devices. The processor 440 can send the first identification information together with a signal for requesting the second identification information. According to an embodiment, the processor 440 can use various schemes to encrypt the first identification information and send the encrypted first identification information to the external electronic device 402. For example, the identification information can be anonymized into an anonymous group. By encrypting the identification information to be sent, another electronic device (e.g., the second electronic device 403) that is not connected to the external electronic device 402 can be prevented from detecting the first identification information associated with the first electronic device 401, thereby enhancing security.

[0078] According to various embodiments of the present disclosure, the processor 440 may receive second identification information from the external electronic device 402 through the first communication channel 441 .

[0079] According to various embodiments of the present disclosure, the first identification information or the second identification information may include an identifier (ID) of the device (for example, a model name and identification information of the electronic device), charging operation mode information (for example, sending power, receiving power, voltage, current, and operation mode switching information), an internal mobile equipment identification (IMEI), communication circuit identification information (for example, identification information for establishing a second communication channel 451, address data of the external electronic device 402 for the second communication channel 451, information associated with the second communication channel 451, and a media access control (MAC) address), and a public key for encryption.

[0080] According to various embodiments of the present disclosure, the processor 440 may use the second identification information to activate the second communication channel 451. The processor 440 may control the first electronic device 401 to establish the second communication channel 451 with the external electronic device 402 identified by the second identification information, and avoid establishing the second communication channel 451 with another external electronic device (e.g., the second power transmitting device 404). According to an embodiment, the external electronic device 402 may establish the second communication channel 451 with the first electronic device 401 identified by the first identification information, or may be controlled to establish the second communication channel 451 with the first electronic device 401 identified by the first identification information. For example, the external electronic device 402 may be controlled to establish the second communication channel 451 with the first electronic device 401 identified by the first identification information and avoid establishing a connection with another electronic device (e.g., the second electronic device 403). Through the above operations, cross-connection can be avoided.

[0081] According to various embodiments of the present disclosure, the processor 440 may receive power receiving mode switching data from the external electronic device 402 through the second communication channel 451. The power receiving mode switching data may include data required to switch from the first power receiving mode to the second power receiving mode. The power receiving mode switching data may be data for authenticating the external electronic device 402 before the power receiving mode is switched. The wireless transmission power level of the second power receiving mode may be higher than the wireless transmission power level of the first power receiving mode. When the first electronic device 401 operates in the second power receiving mode, the battery 420 may be charged faster than when the first electronic device 401 is in the first power receiving mode.

[0082] According to various embodiments of the present disclosure, the processor 440 may receive power receiving mode switching data including data indicating whether the external electronic device 402 supports the second power receiving mode or data for determining whether the external electronic device 402 is a genuine product through the second communication channel 451. The processor 440 may determine whether to perform power receiving mode switching based on the power receiving mode switching data.

[0083] According to various embodiments of the present disclosure, the processor 440 may receive power receiving mode switching data from the external electronic device 402 through the first communication channel 441. The processor 440 may also receive power receiving mode switching data from the external electronic device 402 through both the first communication channel 441 and the second communication channel 451.

[0084] According to various embodiments of the present disclosure, the processor 440 may perform authentication on the external electronic device 402 based on data for determining whether the external electronic device 402 is genuine (the data is included in the power receiving mode switching data). The processor 440 may determine whether to perform power receiving mode switching based on the authentication result for the external electronic device 402. For example, when the external electronic device 402 passes the authentication, the processor 440 may control the wireless power receiving circuit 410 to switch from the first power receiving mode to the second power receiving mode. As another example, when the external electronic device 402 fails the authentication, the processor 440 may control the wireless power receiving circuit 410 to remain in the first power receiving mode.

[0085] According to various embodiments of the present disclosure, the processor 440 may send data in the form of an anonymous data packet through the first communication channel 441. The anonymous data packet may be an encrypted packet. The processor 440 may encrypt the anonymous data packet and control the wireless power receiving circuit 410 to send the encrypted data to the external electronic device 402 through the first communication channel 441. Various encryption schemes may be used to encrypt the data. The first electronic device 401 and the external electronic device 402 may store data in a pre-agreed encryption / decryption scheme, and when the encrypted anonymous data is received, the encrypted anonymous data may be decoded using a pre-agreed encryption / decryption scheme. The anonymous data may include one-time data (instant data or freely usable data) generated using a one-time random number. The anonymous data may be sent through the first communication channel 441 or the second communication channel 451. The processor 440 can check the anonymous data sent through the first communication channel 441 and the anonymous data sent through the second communication channel 451 to determine whether the anonymous data is generated by the same random number, thereby identifying the external electronic device 402 connected through the first communication channel 441 and the external electronic device 402 connected through the second communication channel 451.

[0086] According to various embodiments of the present disclosure, the processor 440 may transmit the first anonymous data through the first communication channel 441. The processor 440 may receive the second anonymous data.

[0087] According to various embodiments of the present disclosure, the processor 440 can detect identification information of the device that generated the second anonymous data from the second anonymous data, and can determine whether the detected identification information corresponds to the identification information of a pre-specified external electronic device (e.g., the external electronic device 402).

[0088] According to various embodiments of the present disclosure, when the identification information detected from the second anonymous data corresponds to the identification information of the external electronic device 402, the processor 440 may perform charging mode switching. According to various embodiments of the present disclosure, the processor 440 may receive the second anonymous data through the first communication channel 441. The processor 440 may determine that the second anonymous data includes the identification information of the external electronic device 402.

[0089] According to various embodiments of the present disclosure, the processor 440 may ascertain identification information associated with a device that generated the second anonymous data from the second anonymous data, and may determine whether the ascertained identification information corresponds to identification information of a pre-specified external electronic device.

[0090] According to various embodiments of the present disclosure, when the second anonymous data includes identification information associated with the external electronic device 402 , the processor 440 may transmit the first anonymous data to the external electronic device 402 through the first communication channel 441 .

[0091] According to various embodiments of the present disclosure, the processor 440 of the first electronic device 401 may send first anonymous data through the first communication channel 441. The processor of the external electronic device 402 may check the first anonymous data to determine whether the first anonymous data includes identification information of the first electronic device 401. The processor of the external electronic device 402 may detect identification information related to the device that generated the first anonymous data from the first anonymous data, and may determine whether the detected identification information is the same as identification information of a pre-specified electronic device (e.g., the first electronic device 401). According to various embodiments of the present disclosure, when the first anonymous data includes identification information associated with the first electronic device 401, the processor of the external electronic device 402 may send second anonymous data to the first electronic device 401 through the first communication channel 441.

[0092] According to various embodiments of the present disclosure, data communicated between the first electronic device 401 and the external electronic device 402 through the first communication channel 441 can be anonymized so as not to be recognized by other external electronic devices. For example, in the case of encrypted data for establishing a second communication channel 451 between the first electronic device 401 and the external electronic device 402 being communicated through the first communication channel 441, although other external electronic devices can also receive the encrypted data, other external electronic devices (e.g., non-pre-designated devices) cannot decrypt the encrypted data; therefore, it is impossible to establish the second communication channel 451 between the first electronic device 401 and any other external electronic device.

[0093] According to various embodiments of the present disclosure, when the data communicated between the first electronic device 401 and the external electronic device 402 through the first communication channel 441 is anonymized together with the identification information used to configure (or modify) the charging mode between the first electronic device 401 and the external electronic device 402 through the first communication channel 441, other external electronic devices cannot detect the identification information that needs to configure the charging mode. According to various embodiments of the present disclosure, the processor 440 can detect the transition between the power transmission phases. For example, the processor 440 can monitor the wireless power receiving circuit 410 of the first electronic device 401 to detect the phase transition in the power transmission mode. The power transmission mode may include: a ping detection phase for detecting the proximity between the external electronic device 402 and the first electronic device 401, a configuration phase for establishing a connection between the external electronic device 402 and the first electronic device 401, and a power transmission phase for sending power from the external electronic device 402 to the first electronic device 401. The processor 440 can detect the phase transition from the power receiving state to the power receiving end state and release the second communication channel 451. For example, the processor 440 may monitor the first communication channel 441 to detect data (e.g., CEP), and when such data is not received, a power transfer termination state for releasing the second communication channel 451 may be assumed. As another example, the processor 440 may monitor the power level received at the wireless communication circuit 430. When it is determined that the received power level is equal to or lower than a predetermined power level, the processor 440 may control the wireless communication circuit 430 to release the second communication channel 451. The above operation makes it possible to avoid cross-connection caused by maintaining the second communication channel when the distance between the first electronic device 401 and the external electronic device 402 becomes too far to perform wireless power transfer while the external electronic device 402 is wirelessly transmitting power to another electronic device (e.g., the second electronic device 403).

[0094] According to various embodiments of the present disclosure, the external electronic device 402 may include a wireless power transmission circuit 450 for wirelessly transmitting power to other electronic devices (eg, a first electronic device).

[0095] Figure 4b and Figure 4c is a diagram illustrating a wireless power transfer operation between an electronic device and a power transmission device according to various embodiments of the present disclosure.

[0096] Figure 4b and Figure 4c A case of a first electronic device 401 , a first power transmitting device 402 , a second electronic device 403 , and a second power transmitting device 404 is depicted.

[0097] According to various embodiments of the present disclosure, the first electronic device 401 may receive power from the first power transmission device 402. When the first power transmission device 402 is close to the first electronic device 401 (eg, within a predetermined distance), the first power transmission device 402 may provide power to the first electronic device 401 wirelessly.

[0098] According to various embodiments of the present disclosure, the first power transmission device 402 may transmit power to the first electronic device 401 according to the standard established by the WPC. The first power transmission device 402 and the first electronic device 401 may exchange data via a wireless power line established between them. Figure 4b As shown, the first power transmission device 402 and the first electronic device 401 can transmit / receive data on the first communication channel 441 established by using a partial frequency band of the wireless power transmission frequency band. The first electronic device 401 and the first power transmission device 402 can exchange various types of data through the first communication channel 441, including wireless charging related information, identification information associated with the first power transmission device 402, identification information associated with the first electronic device 401, authentication information associated with the first power transmission device 402, charging mode switching information associated with the first power transmission device 402, and charging related information including data indicating the wireless power reception state or success / failure. The data transmitted on the first communication channel 441 can be generated in the form of a packet encrypted by one of various encryption algorithms.

[0099] According to various embodiments of the present disclosure, the first communication channel 441 may be a communication channel established for in-band communication using a partial frequency band of a wireless power transmission frequency band.

[0100] According to various embodiments of the present disclosure, the bandwidth allocated to the first communication channel 441 may be narrower than the bandwidth allocated to other communication schemes. In the case of data communication using the first communication channel 441, a relatively low data rate may disrupt smooth data transmission / reception.

[0101] According to various embodiments of the present disclosure, the first electronic device 401 and the first power transmitting device 402 may use the second communication channel 451 instead of the first communication channel 441 for data communication. The second communication channel 451 may be a communication channel used in an OOB communication scheme for short-range wireless data communication (e.g., Bluetooth, NFC, and Wi-Fi) between the first electronic device 401 and the first power transmitting device 402. According to various embodiments of the present disclosure, the bandwidth allocated to the second communication channel 451 may be wider than the bandwidth allocated to the first communication channel 441. The first electronic device 401 and the first power transmitting device 402 may exchange various types of data through the second communication channel 451, including wireless charging related information, identification information associated with the first power transmitting device 402, identification information associated with the first electronic device 401, authentication information associated with the first power transmitting device 402, and charging mode switching information associated with the first power transmitting device 402.

[0102] According to various embodiments of the present disclosure, the second electronic device 403 may receive power from the second power transmission device 404. When the second power transmission device 404 is close to the second electronic device 403 (eg, within a predetermined distance), the second power transmission device 404 may provide power to the second electronic device 403 wirelessly.

[0103] According to various embodiments of the present disclosure, the second power transmission device 404 may transmit power to the second electronic device 403 according to the standard established by WPC. The second power transmission device 404 and the second electronic device 403 may exchange data over the wireless power line established between them. Figure 4b As shown, the second power transmission device 404 and the second electronic device 403 can transmit / receive data via the third communication channel 443 established by using a partial frequency band of the wireless power transmission frequency band. The second electronic device 403 and the second power transmission device 404 can exchange various types of data through the third communication channel 443, including wireless charging related information, identification information associated with the second power transmission device 404, identification information associated with the second electronic device 403, authentication information associated with the second power transmission device 404, charging mode switching information associated with the second power transmission device 404, and charging related information including data indicating the wireless power reception state. The data transmitted on the third communication channel 443 can be generated in the form of a packet encrypted by one of various encryption algorithms.

[0104] According to various embodiments of the present disclosure, the third communication channel 443 may be a communication channel established for in-band communication using a partial frequency band of the wireless power transmission frequency band. The third communication channel 443 may be a communication channel established according to the same communication protocol as the communication protocol used for the first communication channel. Data may be sent / received via a coil configured for wireless power transmission / reception.

[0105] According to various embodiments of the present disclosure, the bandwidth allocated to the third communication channel 443 may be narrower than the bandwidth allocated to other communication schemes. The third communication channel 443 may support a data rate in the range of 20 to 250 bytes / second (e.g., approximately 250 bytes / second for ASK-encoded data from the second electronic device 403 to the second power transmission device 404; approximately 20 bytes / second for FSK-encoded data from the second power transmission device 404 to the second electronic device 403), and in the case of using the third communication channel 443, a relatively low data rate may disrupt smooth data transmission / reception.

[0106] According to various embodiments of the present disclosure, the second electronic device 403 and the second power transmission device 404 may use the fourth communication channel 453 instead of the third communication channel 443 for data communication. The fourth communication channel 453 may be a communication channel used in an OOB communication scheme for short-range wireless data communication (e.g., Bluetooth, NFC, and Wi-Fi) between the second electronic device 403 and the second power transmission device 404. The fourth communication channel 453 may be a communication channel established using the same communication scheme as that used for the second communication channel 451.

[0107] According to various embodiments of the present disclosure, the bandwidth allocated to the fourth communication channel 453 may be wider than the bandwidth allocated to the third communication channel 443. The second electronic device 403 and the second power transmission device 404 may perform data communication through the fourth communication channel 453. The second electronic device 403 and the second power transmission device 404 may exchange various types of data through the fourth communication channel 453, including wireless charging related information, identification information associated with the second power transmission device 404, identification information associated with the second electronic device 403, authentication information associated with the second power transmission device 404, and charging mode switching information associated with the second power transmission device 404.

[0108] According to various embodiments of the present disclosure, the first electronic device 401 and the first power transmission device 402 may perform data communication using the first communication channel 441 and the second communication channel 451. The second electronic device 403 and the second power transmission device 404 may perform data communication using the third communication channel 443 and the fourth communication channel 453.

[0109] According to various embodiments of the present disclosure, a power receiving device (e.g., a first electronic device 401 and a second electronic device 403) can be connected to a power transmitting device (e.g., a first power transmitting device 402 and a second power transmitting device 404) using a first communication channel 441 and a second communication channel 451 for data communication.

[0110] In the case where the power receiving devices are placed close to each other, the electronic device connected through the first communication channel 441 and the electronic device connected through the second communication channel 451 may be different from each other. Figure 4c As shown, the first electronic device 401 can be connected to the second power transmission device 404 via the first communication channel 441, and can be connected to the first power transmission device 402 via the second communication channel 451. The second electronic device 403 can also be connected to the first power transmission device 402 via the third communication channel 443, and connected to the second power transmission device 404 via the fourth communication channel 453.

[0111] According to various embodiments of the present disclosure, when an electronic device is connected to two different power receiving devices through a first communication channel and a second communication channel, a cross connection may occur. If a cross connection occurs, a problem may occur in controlling wireless power supply.

[0112] According to various embodiments of the present disclosure, the first power transmission device 402 and the second power transmission device 404 may be integrated into a single power transmission device. In the case where the first power transmission device 402 and the second power transmission device 404 are integrated into a single power transmission device, the first power transmission device 402 may be implemented as a first power transmission circuit together with a communication circuit for respectively establishing a first communication channel 441 and a second communication channel 451, and the second power transmission device 404 may be implemented as a second power transmission circuit together with a communication circuit for respectively establishing a third communication channel 443 and a fourth communication channel 453.

[0113] If a cross connection occurs so that the first electronic device 401 receives power control information from the first power transmission device 402 through the second communication channel 451 during receiving power from the second power transmission device 404 through the first communication channel 441, a problem may occur in controlling the wireless power supply. Hereinafter, an electronic device and an operating method of the electronic device for avoiding the occurrence of a cross connection are described.

[0114] According to various embodiments of the present disclosure, when the first electronic device 401 is connected to the first power transmission device 402 through the first communication channel 441 and the second communication channel 451, the processor 440 may request and monitor the second identification information associated with the first power transmission device 402 through the first communication channel 441 or the second communication channel 451 to avoid the occurrence of cross connection. For example, the processor 440 may request the second identification information associated with the first power transmission device 402 through the first communication channel 441 or the second communication channel 451 at predetermined time intervals.

[0115] According to various embodiments of the present disclosure, the processor 440 may determine whether the same electronic device is connected through the first communication channel 441 and the second communication channel 451. The processor 440 may determine whether to maintain the second communication channel 451 based on whether the electronic device connected through the first communication channel 441 is the same as the electronic device connected through the second communication channel 451.

[0116] According to various embodiments of the present disclosure, the processor 440 may receive second identification information from the first power transmission device 402 through the first communication channel 441. The second identification information may be used to distinguish the first power transmission device 402 from other electronic devices. According to an embodiment, the processor 440 may receive the second identification information required to establish the second communication channel 451 through the first communication channel 441, and when the identification information associated with the first power transmission device 402 is pre-stored in the first electronic device 401, this operation may be skipped.

[0117] According to various embodiments of the present disclosure, the processor 440 may receive third identification information through the second communication channel 451. The third identification information may include identification information associated with the first power transmission device 402 transmitted through the second communication channel 451.

[0118] The processor 440 may determine whether the third identification information matches the identification information received from the first power transmission device 402 based on at least the second identification information received through the first communication channel 441. The processor 440 may compare the second identification information and the third identification information to determine whether the second identification information and the third identification information are the same. The processor 440 may determine whether the third identification information matches the identification information received from the first power transmission device 402 based on the consistency between the second identification information and the third identification information.

[0119] According to various embodiments of the present disclosure, when the third identification information matches the identification information received from the first power transmission device 402, the processor 440 may maintain the first communication channel 441 and the second communication channel 451. The processor 440 may continue to wirelessly receive power from the first power transmission device 402. When the third identification information matches the identification information received from the first power transmission device 402, the processor 440 may send a signal (e.g., an id_correct packet) to the first power transmission device 402 through the first communication channel 441 indicating that the first identification information matches the second identification information.

[0120] According to various embodiments of the present disclosure, when the second identification information is different from the third identification information, the processor 440 may determine that the third identification information is received from an electronic device (e.g., the second power transmission device 404) other than the first power transmission device 402 or the second identification information is received from a device other than the first power transmission device 402. When the second identification information and the third identification information are different from each other, cross connection may occur.

[0121] According to various embodiments of the present disclosure, when it is determined that the third identification information is received from an electronic device other than the first power transmission device 402 (for example, the second power transmission device 404) or the second identification information is received from an electronic device other than the first power transmission device 402, the processor 440 may release the second communication channel 451. The processor 440 may release the connection with the second power transmission device 404 by releasing the second communication channel 451. When it is determined that the third identification information is received from an electronic device (for example, the second power transmission device 404) or the second identification information is received from an electronic device other than the first power transmission device 402, the processor 440 may send a signal indicating that the second identification information and the third identification information are different from each other to the second power transmission device 404 through the first communication channel 441. Upon receiving the signal indicating that the second identification information and the third identification information are different from each other, the second power transmission device 404 may perform an operation for establishing a connection to the second electronic device 403 through the fourth communication channel 453.

[0122] According to various embodiments of the present disclosure, the processor 440 may perform an operation for establishing a connection with the second power transmission device 404 through the third communication channel 443 to avoid cross connection. The processor 440 may receive fourth identification information from the second power transmission device 404 through the fourth communication channel 453. The fourth identification information may be identification information for distinguishing the second power transmission device 404 from other electronic devices.

[0123] According to various embodiments of the present disclosure, the processor 440 may establish a connection with the first power transmission device 402 through the second communication channel 451 based on the second identification information.

[0124] According to various embodiments of the present disclosure, when it is determined that the third identification information is received from the first power transmission device 402 and the second identification information is received from the second power transmission device 404 other than the first power transmission device 402, the processor 440 may send a signal requesting to suspend power transmission through the first communication channel 441. When it is determined that the third identification information is received from the second power transmission device 404 other than the first power transmission device 402 and the second identification information is received from the first power transmission device 402, the processor 440 may continue to receive power from the first power transmission device 402 by maintaining the connection through the first communication channel 441, and may release the connection through the second communication channel 451. A connection may be established with the first power transmission device 402 through the second communication channel 451.

[0125] According to various embodiments of the present disclosure, although it is described that the processor 440 determines whether the second identification information received through the first communication channel 441 is the same as the third identification information received through the second communication channel 451, the first power transmission device 402 may make such a determination instead of the processor 440. For example, the processor 440 may send the first identification information to the first power transmission device 402 through the first communication channel 441, and send the fourth identification information to the first power transmission device through the second communication channel 451. The first power transmission device 402 may compare the first identification information received through the first communication channel 441 and the fourth identification information received through the second communication channel 451 to determine whether the electronic device connected through the first communication channel 441 is the same electronic device as the electronic device connected through the second communication channel 451.

[0126] According to various embodiments of the present disclosure, the processor 440 of the first electronic device 401 may send first identification information through the first communication channel 441. The first power transmitting device 402 may send the first identification information received through the first communication channel 441 or data related to the first identification information through the second communication channel 451. The first electronic device 401 may compare the data received through the second communication channel 451 with the first identification information. The first electronic device 401 may determine whether the electronic devices connected through the first communication channel 441 and the second communication channel 451 are the same device. For example, when the first electronic device 401 sends the first identification information through the first communication channel 441 and receives the first identification information or related information from the first power transmitting device 402 through the second communication channel 451, the first electronic device 401 may determine that it has been connected to the first power transmitting device 402 through the first communication channel 441 and the second communication channel 451.

[0127] According to various embodiments of the present disclosure, although the description is directed to the case where the first electronic device 401 sends the first identification information through the first communication channel 441 and receives the first identification information or related data through the second communication channel 451 to determine whether the electronic devices connected through the first communication channel and the second communication channel are the same device, the present disclosure is not limited thereto. For example, the first power transmitting device 402 may also send the second identification information through the first communication channel 441 and receive the second identification information or data related to the second identification information through the second communication channel 451 to determine whether the electronic devices connected through the first communication channel 441 and the second communication channel 451 are the same device.

[0128] According to various embodiments of the present disclosure, although the description is for a case where the processor 440 or the first power sending device 402 receives the first identification information or the second identification information through the first communication channel 441, the third identification information or the fourth identification information can also be received through the second communication channel 451 instead of the first communication channel 441.

[0129] Figure 5 is a diagram illustrating an electronic device and an external electronic device performing data communication through a first channel and a second channel according to an embodiment of the present disclosure.

[0130] Figure 5 An electronic device 510 (eg, the electronic device 101 , the first electronic device 401 , and the second electronic device 403 ) and an external electronic device 520 (eg, the first power transmission device 402 , and the second power transmission device 404 ) are depicted.

[0131] According to various embodiments of the present disclosure, the external electronic device 520 may include a first wireless communication circuit 521 , a first processor 523 , and a wireless power transmission circuit 525 .

[0132] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 may wirelessly transmit power to the electronic device 510. The wireless power transmission circuit 525 may transmit power to the electronic device 510 using various methods including a magnetic induction power transmission method (eg, Qi method and PMA method) and a resonance induction power transmission method.

[0133] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 may perform data communication with the electronic device 510 through a first communication channel 531 established using a partial frequency band of the power transmission frequency band. The wireless power transmission circuit 525 may include a communication circuit 527 for controlling the operation of establishing and releasing the first communication channel 531 using a coil 529.

[0134] According to various embodiments of the present disclosure, the first wireless communication circuit 521 may perform data communication with the electronic device 510 through a second communication channel 532 established via a short-range wireless communication protocol (eg, Wi-Fi, Bluetooth, NFC, etc.).

[0135] According to various embodiments of the present disclosure, the first processor 523 may control the operations of the wireless power transmission circuit 525 and the first wireless communication circuit 521. The first processor 523 may control the wireless power transmission circuit 525 to transmit the first identification information associated with the external electronic device 520 through the first communication channel 531 in response to a request from the electronic device 510. The first processor 523 may control the first wireless communication circuit 521 to transmit the second identification information through the second communication channel 532 in response to a request from the electronic device 510.

[0136] According to various embodiments of the present disclosure, the electronic device 510 may include a wireless power receiving circuit 511 (e.g., the wireless power receiving circuit 410), a second processor 513 (e.g., the processor 440), and a second wireless communication circuit 515 (e.g., the wireless communication circuit 430).

[0137] According to various embodiments of the present disclosure, the wireless power receiving circuit 511 may receive power wirelessly transmitted by the external electronic device 520. The wireless power receiving circuit 511 may receive power from the external electronic device 520 using various methods including a magnetic induction power transmission method (e.g., a Qi method and a PMA method) and a resonance induction power transmission method.

[0138] According to various embodiments of the present disclosure, the wireless power receiving circuit 511 can perform data communication with the external electronic device 520 through the first communication channel 531 established by using a partial frequency band of the power transmission frequency band. The wireless power receiving circuit 511 may include a communication circuit 517, which is used to control the operation of establishing and releasing the first communication channel 531 using the coil 519.

[0139] According to various embodiments of the present disclosure, the second wireless communication circuit 515 may perform data communication with the external electronic device 520 through a second communication channel 532 established via a short-range wireless communication protocol (eg, Wi-Fi, Bluetooth, NFC, etc.).

[0140] According to various embodiments of the present disclosure, the second processor 513 may control the operation of the wireless power receiving circuit 511 and the second wireless communication circuit 515. The second processor 513 may control the wireless power receiving circuit 511 to receive the first identification information through the first communication channel 531. The second processor 513 may control the second wireless communication circuit 515 to receive the second identification information through the second communication channel 532.

[0141] Figure 6 is a signal flow chart illustrating a process in which an electronic device establishes a second communication channel according to various embodiments of the present disclosure.

[0142] Reference Figure 6 , in operation 601 , the wireless power transmission circuit 525 of the external electronic device 520 and the wireless power reception circuit 511 of the electronic device 510 may establish a first communication channel 531 .

[0143] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 may broadcast a ping signal, and the wireless power reception circuit 511 may receive the ping signal and transmit a response signal. The wireless power transmission circuit 525 may detect the proximity of the electronic device 510 based on the reception of the response signal.

[0144] According to various embodiments of the present disclosure, at operation 602, the wireless power receiving circuit 511 may transmit first identification information through a first communication channel. The first identification information may represent information for distinguishing the electronic device 510 from other electronic devices. The first identification information may be data related to wireless power transmission from the wireless power transmitting circuit 525 to the wireless power receiving circuit 511.

[0145] According to various embodiments of the present disclosure, in operation 603, the wireless power transmission circuit 525 may transmit configuration information to the wireless power receiving circuit 511 through the first communication channel. The configuration information may be data related to wireless power transmission from the wireless power transmission circuit 525 to the wireless power receiving circuit 511 (e.g., power transmission voltage value and current value). According to various embodiments of the present disclosure, the configuration information transmitted in operation 603 may include second identification information.

[0146] According to various embodiments of the present disclosure, at operation 605 , the wireless power receiving circuit 525 may wirelessly transmit power to the wireless power receiving circuit 511 .

[0147] According to various embodiments of the present disclosure, the wireless power transmitting circuit 525 and the wireless power receiving circuit 511 can be transformed from a ping detection phase for detecting the proximity between the external electronic device 520 and the electronic device 510 to a configuration phase for establishing a connection between the external electronic device 520 and the electronic device 510, and to a power transmission phase for sending power from the external electronic device 520 to the electronic device 510, so as to establish a first communication channel 531, send first identification information, and transmit power in sequence.

[0148] According to various embodiments of the present disclosure, at operation 607, the first processor 523 may transmit a signal for establishing a second communication channel 532 (e.g., a query on supportability of the second communication channel and a request for activating a wireless communication circuit) to the second processor 513 through the first communication channel 531. The wireless power transmission circuit 525 may transmit a signal generated by the first processor 523 to the wireless power reception circuit 511 through the first communication channel 531. The wireless power reception circuit 511 may transfer a signal for establishing the second communication channel 532 to the second processor 513.

[0149] According to various embodiments of the present disclosure, at operation 609, the second processor 513 may send a response message to the first processor 523 in response to the signal for establishing the second communication channel. The wireless power receiving circuit 511 may send the response message generated by the second processor 513 to the wireless power transmitting circuit 525 through the first communication channel 531. The wireless power transmitting circuit 525 may transfer the response message to the first processor 523.

[0150] According to various embodiments of the present disclosure, at operation 611, the first processor 523 may activate the first wireless communication circuit 521. The first processor 523 may generate identification information indicating that the electronic device 510 supporting the second communication scheme is detected after receiving the first identification information, and send the identification information to the first wireless communication circuit 521. The first wireless communication circuit 521 may perform an operation for establishing the second communication channel 532 after receiving the identification information.

[0151] According to various embodiments of the present disclosure, at operation 613, the second processor 513 may transmit a signal requesting second identification information to the wireless power receiving circuit 511. The second identification information may be identification information of the external electronic device 520 transmitted through the first communication channel 531.

[0152] According to various embodiments of the present disclosure, the second processor 513 may use various methods to encrypt the identification information of the electronic device 510, and send the encrypted identification information to the external electronic device 520. By encrypting the identification information, another electronic device (e.g., the second electronic device 403) connected to the external electronic device 520 may be prevented from detecting the identification information of the electronic device 510, thereby enhancing security.

[0153] According to various embodiments of the present disclosure, at operation 615, the wireless power receiving circuit 511 may transmit a signal requesting the second identification information to the wireless power transmitting circuit 525 through the first communication channel 531. At operation 617, the wireless power transmitting circuit 525 may transmit the signal requesting the second identification information and the first identification information to the first processor 523.

[0154] According to various embodiments of the present disclosure, after receiving the signal requesting the second identification information, the first processor 523 may generate the second identification information to the wireless power transmission circuit 525 at operation 619. At operation 621, the wireless power transmission circuit 525 may transmit the second identification information to the wireless power reception circuit 511 through the first communication channel 531. At operation 623, the wireless power reception circuit 511 may transfer the second identification information to the second processor 513.

[0155] According to various embodiments of the present disclosure, the second processor 513 may receive second identification information.

[0156] According to various embodiments of the present disclosure, operations 613 to 623 for requesting and sending the second identification information may be omitted. In the case where operations 613 to 623 are omitted, in operation 625, the electronic device 510 and the external electronic device 520 may establish a second communication channel 532 based on the configuration information or the first identification information.

[0157] According to various embodiments of the present disclosure, at operation 625, the second processor 513 may control the second wireless communication circuit 515 to establish the second communication channel 451 between the second wireless communication circuit 515 and the first wireless communication circuit 521. The second processor 513 may activate the second communication channel 532 based on the second identification information received through the first communication channel 531. The first wireless communication circuit 521 may send a signal for activating the second communication channel 532 to the second wireless communication circuit 515. The second wireless communication circuit 515 may receive a signal for activating the second communication channel 532 from the first wireless communication circuit 521, and send data for establishing the second communication channel 532. The second processor 513 may control the second wireless communication circuit 515 to establish the second communication channel 532 with the external electronic device 520 identified by the second identification information, and prevent the second communication channel 532 from being established with another external electronic device (e.g., the second power transmission device 404). The external electronic device 520 may also control the establishment of the second communication channel 532 based on the first identification information sent by the electronic device 510. For example, the external electronic device 520 may be controlled to establish the second communication channel 532 with the electronic device 510 identified by the first identification information, and prevented from establishing the second communication channel 532 with other electronic devices (eg, the second electronic device 403). Through the above operation, cross connection may be avoided.

[0158] According to various embodiments of the present disclosure, the second processor 513 may receive data including information related to charging from the external electronic device 520 through the second communication channel 532 and control power transmission of the external electronic device 520 connected through the first communication channel 531 .

[0159] According to various embodiments of the present disclosure, the second processor 513 may receive power receiving mode switching data from the external electronic device 520 through the second communication channel 532. The power receiving mode switching data may represent data required to switch from the first power receiving mode to the second power receiving mode. The wireless transmission power level of the second power receiving mode may be higher than the wireless transmission power level of the first power receiving mode. The wireless power receiving circuit 511 operating in the second power receiving mode may charge the battery (e.g., the battery 420) faster than operating in the first power receiving mode.

[0160] According to various embodiments of the present disclosure, the second processor 513 may transmit / receive power receiving mode switching data, the power receiving mode switching data including: information indicating whether the external electronic device 520 supports the second power transmission mode and whether the external electronic device 520 is genuine, and device information (e.g., device type and model name) of the external electronic device 520. The second processor 513 may determine whether to perform power receiving mode switching based on the power receiving mode switching data.

[0161] According to various embodiments of the present disclosure, the second processor 513 may receive the second power receiving mode switching data from the external electronic device 520 through the first communication channel 531. In the case of receiving the power receiving mode switching data from the external electronic device 520 through the first communication channel 531, the second processor 513 may transmit / receive the power receiving mode switching data from the external electronic device 520 through the first communication channel 531 in operations 601, 603, and 605.

[0162] The second processor 513 may also receive power receiving mode switching data from the external electronic device 520 through both the first communication channel 531 and the second communication channel 532 .

[0163] According to various embodiments of the present disclosure, the second processor 513 may use the data for determining whether the external electronic device 520 is genuine contained in the power receiving mode switching data to perform authentication on the external electronic device 520. The second processor 513 may determine whether to perform power receiving mode switching based on the authentication result for the external electronic device 520. For example, when the external electronic device 520 passes the authentication, the second processor 513 may control the wireless power receiving circuit 511 to switch from the first power receiving mode to the second power receiving mode. As another example, when the external electronic device 520 fails the authentication, the second processor 513 may control the wireless power receiving circuit 511 to remain in the first power receiving mode.

[0164] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 may periodically transmit configuration information or second identification information to the wireless power reception circuit 511 through the first communication channel 531 after establishing the second communication channel 532. The electronic device 510 may detect the connection state with the external electronic device 520 based on the configuration information transmitted through the first communication channel 531 or the second identification information and information transmitted through the second communication channel 532.

[0165] Figure 7 is a signal flow diagram illustrating a process in which an electronic device establishes a second communication channel using anonymous data according to various embodiments of the present disclosure.

[0166] Reference Figure 7 , in operation 701 , the wireless power transmitting circuit 525 of the external electronic device 520 and the wireless power receiving circuit 511 of the electronic device 510 may establish a first communication channel.

[0167] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 may broadcast a ping signal, and the wireless power reception circuit 511 may receive the ping signal and transmit a response signal. The wireless power transmission circuit 525 may detect the proximity of the electronic device 510 based on the reception of the response signal.

[0168] According to various embodiments of the present disclosure, at operation 703, the wireless power receiving circuit 511 may transmit first identification information through the first communication channel 531. The first identification information may represent information for identifying the external electronic device 520. The first identification information may be data related to wireless power transmission from the wireless power transmitting circuit 525 to the wireless power receiving circuit 511. The first identification information may be encrypted before transmission. The first identification information may be encrypted in the form of anonymous data.

[0169] According to various embodiments of the present disclosure, at operation 705, the wireless power transmission circuit 525 may transmit configuration information to the wireless power reception circuit 511 through the first communication channel 531. The configuration information may be data (e.g., power transmission voltage value and current value) related to wireless power transmission from the wireless power transmission circuit 525 to the wireless power reception circuit 511. According to various embodiments of the present disclosure, at operation 707, the wireless power reception circuit 525 may wirelessly transmit power to the wireless power reception circuit 511.

[0170] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 and the wireless power reception circuit 511 may sequentially transition from a ping detection phase for detecting proximity between the external electronic device 520 and the electronic device 510 to a configuration phase for establishing a connection between the external electronic device 520 and the electronic device 510 and a power transmission phase for transmitting power from the external electronic device 520 to the electronic device 510. The wireless power transmission circuit 525 and the wireless power reception circuit 511 may establish a first communication channel 531 to perform first identification information transmission and wireless power transmission.

[0171] According to various embodiments of the present disclosure, the first processor 523 may send a signal for generating a second communication channel 532 (e.g., a query on supportability of the second communication channel or a request for activating a wireless communication circuit) to the second processor 513 through the first communication channel 531. The data contained in the signal for establishing the second communication channel 532 may be encrypted in various ways (e.g., an anonymous data packet (anonymous packet)).

[0172] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 may transmit a signal generated by the first processor 523 to the wireless power reception circuit 511 through the first communication channel 531. The wireless power reception circuit 511 may transfer a signal for establishing a second communication channel 532 to the second processor 513.

[0173] According to various embodiments of the present disclosure, the second processor 513 may send a response message to the first processor 523 in response to a signal requesting to establish the second communication channel 532. The wireless power receiving circuit 511 may send a response message generated by the second processor 513 to the wireless power transmitting circuit 525 through the first communication channel 531. The wireless power transmitting circuit 525 may transfer the response message to the first processor 523.

[0174] According to various embodiments of the present disclosure, the first processor 523 may transmit a signal to query supportability of another charging mode (eg, a fast charging mode) to the second processor 513 .

[0175] According to various embodiments of the present disclosure, at operation 709, the second processor 513 may generate a signal including anonymous first identification information and a request for second identification information to the wireless power receiving circuit 709. The first identification information may be identification information of the electronic device 510 transmitted through the first communication channel 531. The second identification information may be identification information of the external electronic device 520 transmitted through the first communication channel 531. The first identification information may be encrypted using an encryption method pre-agreed between the electronic device 510 and the external electronic device 520. The first identification information may be generated in the form of an anonymous data packet. Operations 709, 711, and 713 for requesting the second identification information may be omitted.

[0176] According to an embodiment, the second processor 513 may use various methods to encrypt the identification information of the electronic device 510, and send the encrypted identification information to the external electronic device 520. By encrypting the identification information, another electronic device (e.g., the second electronic device 403) connected to the external electronic device 520 may be prevented from detecting the identification information of the electronic device 510, thereby enhancing security.

[0177] According to various embodiments of the present disclosure, at operation 711, the wireless power receiving circuit 511 may transmit a signal including anonymous first identification information and a request for second identification information to the wireless power receiving circuit 525 through the first communication channel 531. At operation 713, the wireless power transmitting circuit 525 may transmit a signal including anonymous first identification information and a request for second identification information to the first processor 523.

[0178] According to various embodiments of the present disclosure, in the case where anonymous first identification information is sent in operations 709 to 713, operations 703 and 705 may be replaced by other operations (e.g., wireless power transmission and various data sending / receiving operations through a first communication channel).

[0179] According to various embodiments of the present disclosure, after receiving a signal including anonymous first identification information and a request for second identification information, the first processor 523 may send the second identification information to the wireless power transmission circuit 525 at operation 715. The second identification information may be encrypted according to an encryption method pre-agreed between the electronic device 510 and the external electronic device 520. The second identification information may be generated in the form of an anonymous data packet. The first processor 523 may encrypt the second identification information using a predetermined encryption method and send the anonymous second identification information to the wireless power transmission circuit 525.

[0180] In operation 717, the wireless power transmission circuit 525 may transmit the anonymous second identification information to the wireless power reception circuit 511 through the first communication channel 531. In operation 719, the wireless power reception circuit 511 may transfer the anonymous second identification information to the second processor 513.

[0181] According to various embodiments of the present disclosure, the second processor 513 may receive anonymous second identification information. The second identification information may include identification information of the external electronic device 520 received through the first communication channel 531 and information for establishing the second communication channel 532.

[0182] According to various embodiments of the present disclosure, the second processor 513 may receive anonymous second identification information, and perform an operation of establishing the second communication channel 532 based on the anonymous second identification information or a charging mode switching operation.

[0183] According to various embodiments of the present disclosure, the second processor 513 may control the second wireless communication circuit 515 to establish a connection with the first wireless communication circuit 521 through the second communication channel 532. The second processor 513 may activate the second communication channel 532 based on the second identification information received through the first communication channel 531. The second processor 513 may control the second wireless communication circuit 515 to establish the second communication channel 532 with the external electronic device 520 identified by the second identification information, and prevent the second communication channel 532 from being established with another external electronic device (for example, the second power transmitting device 404). The external electronic device 520 may also control the establishment of the second communication channel 532 based on the first identification information sent by the electronic device 510. For example, control may be performed so that the external electronic device 520 establishes the second communication channel 532 with the electronic device 510 identified by the first identification information, and prevents the establishment of the second communication channel 532 with another electronic device (for example, Figure 4a The second electronic device 403) establishes a second communication channel 532. Through the above operation, cross connection can be avoided.

[0184] According to various embodiments of the present disclosure, the second processor 513 may exchange anonymous identification information with the first processor 523, and wirelessly receive power from the external electronic device 520 in the switched charging mode. The second processor 513 may control to receive power to charge the battery in the charging mode determined based on the second identification information.

[0185] Figure 8 is a signal flow chart illustrating a process in which an electronic device connected to an external electronic device through a second communication channel determines whether to maintain the second communication channel according to various embodiments of the present disclosure.

[0186] Figure 8 The operations implemented in may be applicable to a case where the electronic device 510 and the external electronic device 520 are connected to each other through the first communication channel 531 and the second communication channel 532.

[0187] According to various embodiments of the present disclosure, in operation 801 , the first wireless communication circuit 521 and the second wireless communication circuit 515 may perform data communication through the second communication channel 532 .

[0188] According to various embodiments of the present disclosure, at operation 803 , the second wireless communication circuit 515 may transmit a signal requesting third identification information to the first wireless communication circuit 521 through the second communication channel 532 under the control of the second processor 513 .

[0189] According to various embodiments of the present disclosure, the second processor 513 may continuously request and detect the third identification information of the external electronic device 520 through the second communication channel 532 to avoid cross connection when connecting to the external electronic device 520 through the first communication channel 531 and the second communication channel 532. For example, the second processor 513 may request the third identification information from the external electronic device 520 at predetermined intervals.

[0190] According to various embodiments of the present disclosure, at operation 805, the first wireless communication circuit 521 may request the first processor 523 for third identification information. The operation of requesting the third identification information at operation 803 may mean transferring the third identification information request received from the second wireless communication circuit 515 to the first processor 523.

[0191] According to various embodiments of the present disclosure, at operation 807, the first processor 523 may send third identification information to the first wireless communication circuit 521. The first processor 523 may send the third identification information to the first wireless communication circuit 521 in response to the third identification information request received at operation 805.

[0192] According to various embodiments of the present disclosure, at operation 809 , the first wireless communication circuit 521 may transmit the third identification information or information related to the third identification information to the second wireless communication circuit 515 through the second communication channel 532 .

[0193] According to various embodiments of the present disclosure, although not described, the wireless power transmission circuit 525 may transmit the third identification information to the wireless power reception circuit 511 through the first communication channel 531 .

[0194] According to various embodiments of the present disclosure, at operation 811 , the second wireless communication circuit 515 may transfer the third identification information received through the second communication channel 532 to the second processor 513 .

[0195] According to various embodiments of the present disclosure, the second processor 513 may determine whether the third identification information is received from the external electronic device 520 based at least on the second identification information. The second processor 513 may compare the second identification information and the third identification information to determine whether the second identification information and the third identification information are associated with the same device. When the second identification information and the third identification information match, the second processor 513 may verify that the third identification information is received from the external electronic device 520.

[0196] According to various embodiments of the present disclosure, when the third identification information is verified to be received from the external electronic device 520, the second processor 513 may maintain the connection through the first communication channel 531 and the second communication channel 532. The second processor 513 may continue to receive power from the external electronic device 520 wirelessly.

[0197] According to various embodiments of the present disclosure, at operation 813, the second processor may send the third identification information verification result to the wireless power receiving circuit 511. At operation 815, the wireless power receiving circuit may send the third identification information verification information to the wireless power transmitting circuit 525. At operation 817, the wireless power transmitting circuit 525 may transfer the third identification information verification result to the first processor 523.

[0198] According to various embodiments of the present disclosure, the third identification information verification result may include information indicating whether the third identification information corresponds to the identification information transmitted by the external electronic device 520 that has transmitted the second identification information. The third identification information verification result may include at least one of a signal indicating that the third identification information is received from the external electronic device 520 (e.g., an id_correct packet) and a signal indicating that the third identification information is received from an electronic device other than the external electronic device 520 (e.g., an id_incorrect packet).

[0199] exist Figure 8 In the embodiment, a description is given assuming that the third identification information is identification information sent by the external electronic device 520 that has sent the second identification information. In the case where the third identification information is identification information sent by the external electronic device 520 that has sent the second identification information, the signal sent in operations 813, 815, and 817 may be a signal indicating that the third identification information is received from the external electronic device 520 (for example, id_correct).

[0200] According to various embodiments of the present disclosure, the first processor 523 may determine whether to release the second communication channel 532 based on the third identification information verification result and control the first wireless communication circuit 521. When it is determined that the third identification information corresponds to the identification information sent by the external electronic device 520 that has sent the second identification information, the first communication channel 531 and the second communication channel 532 may be maintained.

[0201] According to various embodiments of the present disclosure, when it is determined that the third identification information is not identification information sent by the external electronic device 520 that has sent the second identification information or the second identification information is not identification information sent by the external electronic device 520 that has sent the third identification information, the signal sent in operation 813, operation 815 and operation 817 may be a signal indicating that the second identification information is identification information received from an electronic device other than the external electronic device 520.

[0202] In this case, the second communication channel 532 may be released and referred to below. Fig. 9 and Fig.10 Describe it.

[0203] According to various embodiments of the present disclosure, the signal transmitted in operations 813, 815, and 817 may be a signal that conveys the third identification information received by the electronic device 510 or information generated based on the third identification information to the external electronic device 520. The external electronic device 520 may compare the received signal with the third identification information. The external electronic device 520 may determine whether to maintain the second communication channel 532 based on the comparison result.

[0204] Fig. 9 is a signal flow chart illustrating a process in which an electronic device releases a second communication channel according to various embodiments of the present disclosure.

[0205] exist Fig. 9 In the embodiment, the second processor 513 of the electronic device 510 detects that the third identification information is received from another electronic device 530 and the second identification information is received from another external electronic device 520, and then releases the second communication channel.

[0206] refer to Fig. 9 , the electronic device 510 can be connected to the first external electronic device 520 (eg, Figure 5 external electronic device 520), and may be connected to a second external electronic device (eg, Figure 4a For example, the electronic device 510 may switch the wireless power transmission source from the second external electronic device 530 to the first external electronic device 520. The electronic device 510 may be connected to the first external electronic device 520 through the first communication channel, and may be connected to the second external electronic device 530 through the second communication channel. This situation may result in cross-connection, which brings about the problem of controlling the power received from the first external electronic device 520.

[0207] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 and the wireless power reception circuit 511 may perform data communication through the first communication channel.

[0208] According to various embodiments of the present disclosure, at operation 901 , the electronic device 510 may receive second identification information corresponding to the first external electronic device 520 through a first communication channel.

[0209] According to various embodiments of the present disclosure, at operation 903, the second external electronic device 530 (eg, Figure 4b The second wireless communication circuit 515 of the second power transmitting device 404 and the third wireless communication circuit 531 can perform data communication through the second communication channel.

[0210] According to various embodiments of the present disclosure, at operation 905 , the second processor 513 may control the second wireless communication circuit 515 to transmit a signal requesting third identification information to the second external electronic device 530 .

[0211] According to various embodiments of the present disclosure, at operation 907 , the second wireless communication circuit 515 may transmit a signal requesting third identification information to the third wireless communication circuit 531 through the second communication channel under the control of the second processor 513 .

[0212] According to various embodiments of the present disclosure, at operation 909, the third wireless communication circuit 531 may transmit a signal requesting third identification information to the third processor 533. The third processor 533 may control the third wireless communication circuit to send the third identification information at operation 911 in response to the signal requesting the third identification information.

[0213] According to various embodiments of the present disclosure, at operation 913 , the third wireless communication circuit 531 may transmit third identification information to the second wireless communication circuit 515 through the second communication channel.

[0214] According to various embodiments of the present disclosure, at operation 915 , the second wireless communication circuit 515 may transfer third identification information to the second processor 513 .

[0215] According to various embodiments of the present disclosure, the second processor 513 may determine whether the third identification information is transmitted by the first external electronic device 520 that has transmitted the second identification information.

[0216] According to various embodiments of the present disclosure, the second processor 513 may determine whether the third identification information is received from the external electronic device 520 based on at least the second identification information. The second processor 513 may compare the second identification information and the third identification information to determine whether the second identification information and the third identification information are identical to each other. When it is determined that the second identification information and the third identification information are not identical to each other, the second processor 513 may determine that the third identification information is received from an electronic device other than the first external electronic device 520 (e.g., the second external electronic device 530).

[0217] According to various embodiments of the present disclosure, when it is determined that the third identification information is received from an electronic device (the second external electronic device 530) other than the first external electronic device 520, the second processor 513 may continue to wirelessly receive power from the first external electronic device 520. The second processor 513 may maintain the connection with the first external electronic device 520 through the first communication channel.

[0218] According to various embodiments of the present disclosure, when it is determined that the third identification information is not sent by the first external electronic device 520 that has sent the second identification information, at operation 917, the second processor 513 may control the second wireless communication circuit 515 to release the second communication channel.

[0219] According to various embodiments of the present disclosure, at operation 919 , the second wireless communication circuit 515 may send a message indicating release of the second communication channel to the third wireless communication circuit 531 through the second communication channel, and release the second communication channel under the control of the second processor 513 .

[0220] According to various embodiments of the present disclosure, at operation 921 , the third wireless communication circuit 531 may deliver a message indicating the release of the second communication channel to the third processor 533 .

[0221] According to various embodiments of the present disclosure, at operation 923 , the second processor 513 may control the wireless power receiving circuit 511 to transmit the second identification information verification result or the third identification information verification result or data generated based on the verification result to the first external electronic device 520 .

[0222] According to various embodiments of the present disclosure, the wireless power receiving circuit 511 may transmit the third identification information verification result to the wireless power transmitting circuit 525 through the first communication channel at operation 925 under the control of the second processor 513 .

[0223] According to various embodiments of the present disclosure, the third identification information verification result may include information indicating whether the third identification information is identification information transmitted by the first external electronic device 520 that has transmitted the second identification information.

[0224] According to various embodiments of the present disclosure, at operation 927 , the wireless power transmission circuit 525 may transfer the third identification information verification result to the first processor 523 .

[0225] According to various embodiments of the present disclosure, when it is determined that the third identification information is not identification information sent by the first external electronic device 520 that has sent the first identification information, the signal sent in operation 923, operation 925 and operation 927 may be a signal indicating that the identification information is identification information received from an electronic device other than the first external electronic device 502 (for example, an id_incorrect packet).

[0226] According to various embodiments of the present disclosure, when it is determined that the third identification information is not identification information sent by the first external electronic device 520 that has sent the first identification information, the first processor 523 can control the wireless power transmission circuit 525 to send a signal to the electronic device 510 at operation 929 requesting to re-establish the second communication channel.

[0227] According to various embodiments of the present disclosure, at operation 931, the wireless power transmission circuit 525 may transmit a signal for requesting to establish a second communication channel to the wireless power reception circuit 511 through the first communication channel. Figure 6 The second communication channel is established as described in operations 609 to 623.

[0228] According to various embodiments of the present disclosure, the first wireless communication circuit 521 and the second wireless communication circuit 515 may establish a second communication channel at operation 933. The first wireless communication circuit 521 and the second wireless communication circuit 515 may establish the second communication channel based on the first identification information or the second identification information.

[0229] exist Fig. 9 In an embodiment, while releasing the second communication channel, the first communication channel and the wireless power transmission are maintained. Fig.10 A case is described where both the first communication channel and the second communication channel are released and the wireless power transmission is terminated.

[0230] Fig.10 is a signal flow chart illustrating a process in which an electronic device releases a second communication channel according to various embodiments of the present disclosure.

[0231] exist Fig.10 In the embodiment of , the second processor 513 detects that the third identification information is received from an electronic device other than the external electronic device 520 that has sent the second identification information, and thus releases the second communication channel and terminates the wireless charging.

[0232] refer to Fig.10 , the electronic device 510 is connected to a first external electronic device (eg, Figure 5 The first external electronic device 520 is connected to the second external electronic device 530 through the second communication channel. This situation may cause cross connection, which brings about the problem of controlling the power received from the first external electronic device 520.

[0233] According to various embodiments of the present disclosure, at operation 1001, the wireless power transmission circuit 525 and the wireless power receiving circuit 511 may perform data communication through a first communication channel. The wireless power receiving circuit 511 may send first identification information to the wireless power transmission circuit 525 through the first communication channel. The wireless power transmission circuit 525 may send second identification information to the wireless power receiving circuit 511 through the first communication channel.

[0234] According to various embodiments of the present disclosure, at operation 1003, the second external electronic device 530 (eg, Figure 4bThe second wireless communication circuit 515 of the second power transmitting device 404 and the third wireless communication circuit 531 can perform data communication through the second communication channel.

[0235] According to various embodiments of the present disclosure, at operation 1005 , the second processor 513 may control the second wireless communication circuit 515 to transmit a signal requesting third identification information to the second external electronic device 530 .

[0236] According to various embodiments of the present disclosure, at operation 1007 , the second wireless communication circuit 515 may transmit a signal requesting third identification information to the third wireless communication circuit 531 through the second communication channel under the control of the second processor 513 .

[0237] According to various embodiments of the present disclosure, at operation 1009, the third wireless communication circuit 531 may transmit a signal requesting third identification information to the third processor 533. In response to the signal requesting third identification information, the third processor 533 may control the third wireless communication circuit to send third identification information at operation 1011.

[0238] According to various embodiments of the present disclosure, at operation 1013 , the third wireless communication circuit 531 may transmit third identification information to the first wireless communication circuit 515 through the second communication channel.

[0239] According to various embodiments of the present disclosure, at operation 1015 , the second wireless communication circuit 515 may transfer third identification information to the second processor 513 .

[0240] According to various embodiments of the present disclosure, the second processor 513 may determine whether the third identification information is transmitted by the first external electronic device 520 that has transmitted the second identification information.

[0241] According to various embodiments of the present disclosure, the second processor 513 may determine whether the third identification information is received from the external electronic device 520 based on at least the second identification information. The second processor 513 may compare the second identification information and the third identification information to determine whether the second identification information and the third identification information are identical to each other. When it is determined that the second identification information and the third identification information are not identical to each other, the second processor 513 may determine that the third identification information is received from an electronic device other than the first external electronic device 520 (e.g., the second external electronic device 530).

[0242] According to various embodiments of the present disclosure, when it is determined that the third identification information is received from an electronic device (the second external electronic device 530) other than the first external electronic device 520, the second processor 513 may continue to wirelessly receive power from the first external electronic device 520. The second processor 513 may maintain the connection with the first external electronic device 520 through the first communication channel.

[0243] According to various embodiments of the present disclosure, when it is determined that the third identification information is not sent by the first external electronic device 520 that has sent the second identification information, at operation 1017, the second processor 513 may control the second wireless communication circuit 515 to release the second communication channel.

[0244] According to various embodiments of the present disclosure, at operation 1019 , the second wireless communication circuit 515 may send a message indicating release of the second communication channel to the third wireless communication circuit 531 through the second communication channel, and release the second communication channel under the control of the second processor 513 .

[0245] According to various embodiments of the present disclosure, at operation 1021 , the third wireless communication circuit 531 may deliver a message indicating the release of the second communication channel to the third processor 533 .

[0246] According to various embodiments of the present disclosure, at operation 1023 , the second processor 513 may control the wireless power receiving circuit 511 to transmit a signal requesting termination of power transfer to the first external electronic device 520 .

[0247] According to various embodiments of the present disclosure, at operation 1025 , the wireless power receiving circuit 511 may transmit a signal requesting termination of power transfer to the wireless power transmitting circuit 525 through the first communication channel.

[0248] According to various embodiments of the present disclosure, at operation 1027, the wireless power transmission circuit 525 may transmit a signal requesting termination of power transmission to the first processor 523. Upon receiving the signal requesting termination of power transmission, the first processor 523 may control the wireless power transmission circuit 525 to stop power transmission. The wireless power transmission circuit 525 may terminate power transmission under the control of the first processor 523. As the wireless power transmission is terminated, the first communication channel established using a portion of the power transmission frequency band may be released.

[0249] Fig.11 is a signal flow chart illustrating a process in which an electronic device that does not support a second communication channel establishes a connection through a first communication channel according to various embodiments of the present disclosure.

[0250] exist Fig.11In the embodiment of FIG. 5 , it is assumed that the external electronic device 520 supports the communication scheme for the second communication channel, but the electronic device 510 does not support the communication scheme for the second communication channel.

[0251] Reference Fig.11 , at operation 1101 , the wireless power transmitting circuit 525 may transmit a ping signal to the wireless power receiving circuit 511 .

[0252] According to various embodiments of the present disclosure, the power delivery mode may include a ping detection phase for detecting proximity between the external electronic device 520 and the electronic device 510, a configuration phase for establishing a connection between the external electronic device 520 and the electronic device 510, and a power delivery phase for transmitting power from the external electronic device 520 to the electronic device 510. The operation of operation 1101 may be an operation performed in the ping detection phase for detecting proximity between the external electronic device 520 and the electronic device 510. At 1103, the first processor 523 may transmit a first wireless communication circuit activation message to the first wireless communication circuit.

[0253] According to various embodiments of the present disclosure, at operation 1105, the wireless power receiving circuit 511 may send configuration information to the wireless power transmitting circuit 525. The configuration information may be information required to wirelessly transmit / receive power. The operation of operation 1105 may be an operation performed in a configuration phase for establishing a connection between the external electronic device 520 and the electronic device 510 for wireless power transmission.

[0254] The electronic device 510 may perform data communication with the external electronic device 520 through a first communication channel established using a portion of the wireless power transmission frequency band.

[0255] According to various embodiments of the present disclosure, at operation 1107, the wireless power transmission circuit 525 may transmit a signal requesting establishment of a second communication channel to the wireless power reception circuit 511 through the first communication channel. According to various embodiments of the present disclosure, the wireless power transmission circuit 525 may transmit a signal requesting data indicating whether the electronic device 510 supports the second communication channel.

[0256] According to various embodiments of the present disclosure, the electronic device 510 may not support the scheme for the second communication channel. In this case, the second processor 513 of the electronic device 510 may control the wireless power receiving circuit 511 to send a signal (e.g., a NACK signal) indicating that the electronic device 510 cannot establish the second communication channel in response to a signal for requesting to establish the second communication channel. The electronic device 510 may also not send any signal (e.g., an ACK signal) indicating that the electronic device 510 can establish the second communication channel.

[0257] According to various embodiments of the present disclosure, in operation 1109, the wireless power receiving circuit 511 may transmit a signal (e.g., a NACK signal) indicating that the electronic device 510 cannot establish a second communication channel to the wireless power transmitting circuit 525 through the first communication channel under the control of the second processor 513. The wireless power receiving circuit 511 may not respond to the signal transmitted in operation 1107.

[0258] According to various embodiments of the present disclosure, at operation 1111, upon receiving a signal (e.g., a NACK signal) indicating that the electronic device 510 cannot establish the second communication channel, the first processor 523 of the external electronic device 520 may control the wireless power transmission circuit 525 to transmit / receive data with the wireless power receiving circuit 511 through the first communication channel. The second processor 513 of the electronic device 510 may control the wireless power receiving circuit 511 to transmit / receive data through the first communication channel. When a response message is not received within a predetermined period of time after the signal requesting establishment of the second communication channel is transmitted at operation 1107, the first processor 523 of the external electronic device 520 may control the wireless power transmission circuit 525 to receive / transmit data through the first communication channel.

[0259] Fig.12 is a signal flow chart illustrating a process in which an electronic device releases a second communication channel when a change in a power receiving state is detected according to various embodiments of the present disclosure.

[0260] Reference Fig.12 , in operation 1201, the wireless power transmitting circuit 525 and the wireless power receiving circuit 511 may perform data communication through a first communication channel.

[0261] According to various embodiments of the present disclosure, in operation 1203 , the first wireless communication circuit 521 and the second wireless communication circuit 515 may perform data communication through the second communication channel.

[0262] According to various embodiments of the present disclosure, at operation 1201 or operation 1203 , the electronic device 510 may receive power receiving mode switching data from the external electronic device 520 through the first communication channel or the second communication channel.

[0263] According to various embodiments of the present disclosure, the second processor 513 may perform authentication on the external electronic device 520 based on data for verifying whether the external electronic device 520 is genuine, which data is included in the power receiving mode switching data. The second processor 513 may determine whether to perform power receiving mode switching based on the authentication result for the external electronic device 520. For example, when the external electronic device 520 passes the authentication, the second processor 513 may control the wireless power receiving circuit 511 to perform power receiving mode switching from the first power receiving mode to the second power receiving mode. As another example, when the external electronic device 520 fails the authentication, the second processor 513 may control the wireless power receiving circuit 511 to remain in the first power receiving mode.

[0264] According to various embodiments of the present disclosure, at operation 1205 , the wireless power transmission circuit 525 and the wireless power reception circuit 511 may detect that the electronic device 510 and the external electronic device 520 are separated from each other.

[0265] According to various embodiments of the present disclosure, the electronic device 510 and the external electronic device 520 being separated from each other may mean that the electronic device 510 and the external electronic device 520 become too far away from each other to perform wireless power transfer.

[0266] According to various embodiments of the present disclosure, the wireless power transmitting circuit 525 and the wireless power receiving circuit 511 may detect that the electronic device 510 and the external electronic device 520 are separated from each other by detecting that predetermined data (e.g., CEP) is not received through the first communication channel within a predetermined time period during a charging session.

[0267] According to various embodiments of the present disclosure, the electronic device 510 and the external electronic device 520 being separated from each other may cause a phase conversion to a ping detection phase for detecting proximity between the external electronic device 520 and the electronic device 510 .

[0268] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 may transmit a ping signal when detecting that the electronic device 510 and the external electronic device 520 are separated from each other. The external electronic device 520 may perform a phase transition to a ping detection phase for detecting proximity between the external electronic device 520 and the electronic device 510, in which the external electronic device 520 transmits a ping signal to detect proximity of the electronic device 510.

[0269] According to various embodiments of the present disclosure, at operation 1207 , upon detecting the power transmission phase conversion, the second processor 513 may control the second wireless communication circuit 515 to release the second communication channel.

[0270] According to various embodiments of the present disclosure, upon detecting the transition from the power transmission phase to the ping detection phase, the second processor 513 may control the second wireless communication circuit 515 to release the second communication channel.

[0271] According to various embodiments of the present disclosure, at operation 1209 , the first wireless communication circuit 521 and the second wireless communication circuit 515 may release the second communication channel.

[0272] Through the above operation, cross connection can be prevented from occurring when the distance between the electronic device 510 and the external electronic device 520 becomes too far to perform wireless power transfer and the external electronic device 520 is wirelessly transferring power to another electronic device (eg, the second electronic device 403 ).

[0273] Fig.13 is a signal flow diagram illustrating an alternative process for an electronic device to release a second communication channel upon detecting a change in a power receiving state according to various embodiments of the present disclosure.

[0274] Reference Fig.13 , in operation 1301 , the wireless power transmitting circuit 525 and the wireless power receiving circuit 511 may perform data communication through a first communication channel.

[0275] According to various embodiments of the present disclosure, at operation 1303 , the first wireless communication circuit 521 and the second wireless communication circuit 515 may perform data communication through the second communication channel.

[0276] According to various embodiments of the present disclosure, at operation 1301 or operation 1303 , the electronic device 510 may receive power receiving mode switching data from the external electronic device 520 through the first communication channel or the second communication channel.

[0277] According to various embodiments of the present disclosure, the second processor 513 may perform authentication on the external electronic device 520 based on data for verifying whether the external electronic device 520 is genuine, which data is included in the power receiving mode switching data. The second processor 513 may determine whether to perform power receiving mode switching based on the authentication result for the external electronic device 520. For example, when the external electronic device 520 passes the authentication, the second processor 513 may control the wireless power receiving circuit 511 to perform power receiving mode switching from the first power receiving mode to the second power receiving mode. As another example, when the external electronic device 520 fails the authentication, the second processor 513 may control the wireless power receiving circuit 511 to remain in the first power receiving mode.

[0278] According to various embodiments of the present disclosure, at operation 1305 , the wireless power transmission circuit 525 and the wireless power reception circuit 511 may detect that the electronic device 510 and the external electronic device 520 are separated from each other.

[0279] According to various embodiments of the present disclosure, the electronic device 510 and the external electronic device 520 being separated from each other may mean that the electronic device 510 and the external electronic device 520 become too far away from each other to perform wireless power transfer.

[0280] According to various embodiments of the present disclosure, the electronic device 510 and the external electronic device 520 being separated from each other may cause a phase conversion to a ping detection phase for detecting proximity between the external electronic device 520 and the electronic device 510 .

[0281] According to various embodiments of the present disclosure, the wireless power transmitting circuit 525 and the wireless power receiving circuit 511 may detect that the electronic device 510 and the external electronic device 520 are separated from each other by detecting that predetermined data (e.g., CEP) is not received through the first communication channel within a predetermined time period during a charging session.

[0282] According to various embodiments of the present disclosure, the wireless power transmission circuit 525 may transmit a ping signal when detecting that the electronic device 510 and the external electronic device 520 are separated from each other. The external electronic device 520 may perform a phase transition to a ping detection phase for detecting proximity between the external electronic device 520 and the electronic device 510, in which the external electronic device 520 transmits a ping signal to detect proximity of the electronic device 510.

[0283] According to various embodiments of the present disclosure, at operation 1307 , upon detecting the power transmission phase conversion, the first processor 523 may control the first wireless communication circuit 521 to release the second communication channel.

[0284] exist Fig.12 In the embodiment of FIG. 5 , when the power transmission phase transition is detected, the second processor 513 may control the second wireless communication circuit 515 to release the second communication channel. Fig.13 As shown, the first processor 523 may also control the first wireless communication circuit 521 to release the second communication channel.

[0285] According to various embodiments of the present disclosure, upon detecting a transition from the power transmission phase to the ping detection phase, the first processor 523 may control the first wireless communication circuit 521 to release the second communication channel.

[0286] According to various embodiments of the present disclosure, at operation 1309 , the first wireless communication circuit 521 and the second wireless communication circuit 515 may release the second communication channel.

[0287] Through the above operation, cross connection can be prevented from occurring when the distance between the electronic device 510 and the external electronic device 520 becomes too far to perform wireless power transfer and the external electronic device 520 is wirelessly transferring power to another electronic device (eg, the second electronic device 403 ).

[0288] Fig.14 is a signal flow chart illustrating a process in which an electronic device establishes a first communication channel according to various embodiments of the present disclosure.

[0289] exist Figures 4a to 4c and Figures 5 to 13 In the embodiment of , the electronic device (eg, the first electronic device 401) receives the first identification information and the second identification information through the first communication channel. Fig.14 In the embodiment of the present invention, the electronic device (eg, the first electronic device 401) receives the first identification information through the second communication channel and determines whether to establish the first communication channel.

[0290] According to various embodiments of the present disclosure, at operation 1401 , the second wireless communication circuit 515 may transmit a signal including first identification information and a request for second identification information to the first wireless communication circuit 521 through a second communication channel.

[0291] According to various embodiments of the present disclosure, at operation 1403 , the first wireless communication circuit 521 may transmit second identification information to the second wireless communication circuit 515 through the second communication channel.

[0292] According to various embodiments of the present disclosure, at operation 1405 , the second processor 513 may control the wireless power receiving circuit 511 to transmit a signal requesting third identification information through the first communication channel.

[0293] According to various embodiments of the present disclosure, at operation 1407 , the wireless power receiving circuit 511 may transmit a signal requesting third identification information to the wireless power transmitting circuit 525 through the first communication channel.

[0294] According to various embodiments of the present disclosure, at operation 1409 , the wireless power transmission circuit 525 may transmit a signal requesting third identification information to the first processor 523 , and at operation 1411 , the first processor 523 may control the wireless power transmission circuit 525 to transmit the third identification information to the electronic device 510 .

[0295] According to various embodiments of the present disclosure, at operation 1413 , the wireless power transmission circuit 525 may transmit third identification information to the wireless power reception circuit 511 through the first communication channel.

[0296] According to various embodiments of the present disclosure, at operation 1415 , the wireless power receiving circuit 511 may transfer third identification information to the second processor 513 .

[0297] According to various embodiments of the present disclosure, the second processor 513 may determine whether the third identification information is sent by the external electronic device 520 that has sent the second identification information. The second processor 513 may compare the second identification information received through the first communication channel with the third identification information received through the second communication channel. The second processor 513 may determine whether the second identification information and the third identification information match. When the second identification information and the third identification information match, the second processor 513 may verify that the third identification information is received from the external electronic device 520.

[0298] According to various embodiments of the present disclosure, when it is verified that the third identification information is received from the external device 520, the second processor 513 may maintain the first communication channel and the second communication channel. The second processor 513 may control the wireless power receiving circuit 511 to continue to wirelessly receive power from the external electronic device 520. When it is verified that the third identification information is received from the external device 520, the second processor 513 may send a signal (e.g., id_correct packet) indicating that the second identification information and the third identification information match to the external electronic device 520 through the second communication channel.

[0299] According to various embodiments of the present disclosure, when the second identification information and the third identification information are different from each other, the second processor 513 may determine that the third identification information is received from an external electronic device (e.g., the second power transmitting device 404) other than the external electronic device 520. In the case where the second identification information and the third identification information are different from each other, cross connection may occur.

[0300] According to various embodiments of the present disclosure, when it is determined that the second identification information is received from an external electronic device (eg, the second power transmitting device 404 ) other than the external electronic device 520 , the second processor 513 may stop the wireless power charging.

[0301] According to various embodiments of the present disclosure, the second identification information and the third identification information may be sent in the form of anonymous data packets. The anonymous data packets may be implemented in the form of random numbers generated in various schemes. For example, the anonymous data packets may be implemented as disposable data (instant data or freely usable data) generated using a one-time random number. The first processor 523 may generate an anonymous data packet corresponding to the second identification information, and send an anonymous data packet packet corresponding to the second identification information to the electronic device 510 via the second communication channel. The first processor 523 may generate an anonymous data packet corresponding to the third identification information, and send an anonymous data packet corresponding to the third identification information to the electronic device 510 via the first communication channel.

[0302] According to various embodiments of the present disclosure, the second processor 513 may compare the anonymous data packet corresponding to the second identification information received through the first communication channel and the anonymous data packet corresponding to the third identification information received through the second communication channel. When the anonymous data packet is generated with the same random number, the second processor 513 may determine that the same external electronic device is connected through both the first communication channel and the second communication channel. According to various embodiments of the present disclosure, at operation 1417, the second processor 513 may control the wireless power receiving circuit 511 to send the third identification information verification result to the external electronic device 520. At operation 1419, the wireless power receiving circuit 511 may send the third identification information verification result to the wireless power transmitting circuit 525 through the first communication channel. At operation 1421, the wireless power transmitting circuit 525 may pass the third identification information verification result to the first processor 523.

[0303] Although it is depicted in the drawing that operations 1417, 1419, and 1421 are performed through a first communication channel, operations 1417, 1419, and 1421 may be performed through a second communication channel instead of the first communication channel.

[0304] According to various embodiments of the present disclosure, the electronic device 510 and the external electronic device 520 may each perform third identification information verification, and in this case, operations 1417, 1419, and 1421 for sending verification results from the electronic device 510 to the external electronic device 520 may be omitted.

[0305] According to various embodiments of the present disclosure, an electronic device may include a wireless power receiving circuit, a wireless communication circuit, and a processor, which may be configured to control: using the wireless power receiving circuit to receive first identification information through a first in-band communication channel connected to a first external wireless power transmitting circuit outside the electronic device; when the first in-band communication channel is established between the wireless power receiving circuit and the first external wireless power transmitting circuit, using the wireless communication circuit to establish a first out-of-band communication channel with the first external wireless communication circuit based on the first identification information, and the first external wireless communication circuit corresponds to the first wireless power transmitting circuit outside the electronic device; when the first out-of-band communication channel is established between the wireless communication circuit and the first external wireless communication circuit, using the wireless power receiving circuit to receive second identification information through a second in-band communication channel connected to a second external wireless power transmitting circuit outside the electronic device; when the first out-of-band communication channel is established between the wireless communication circuit and the first external wireless communication circuit, when the second in-band communication channel is established between the wireless power receiving circuit and the second external power transmitting circuit, disconnecting the first out-of-band communication channel; and using the wireless communication circuit to automatically establish a second out-of-band communication channel with the second external wireless communication circuit based on the second identification information, and the second external wireless communication circuit corresponds to the second external wireless power transmitting circuit outside the electronic device.

[0306] According to various embodiments of the present disclosure, the processor of the electronic device may be configured to control: identifying that the first external wireless power transmission circuit and the second external wireless power transmission circuit belong to the same charging device based on at least a portion of the first identification information and the second identification information.

[0307] According to various embodiments of the present disclosure, the processor of the electronic device may be configured to control: comparing the second identification information with the first identification information, and establishing a second out-of-band communication channel based on at least a portion of a determination result that the second identification information is different from the first identification information.

[0308] According to various embodiments of the present disclosure, a processor of an electronic device may be configured to control: receiving third identification information from a first external wireless communication circuit through a first out-of-band communication channel before a second out-of-band communication channel is established, comparing the third identification information and the second identification information, and establishing a second out-of-band communication channel based on at least a portion of a determination result that the third identification information is different from the second identification information.

[0309] According to various embodiments of the present disclosure, the processor of the electronic device may be configured to control receiving fourth identification information from the second external wireless communication circuit after the second out-of-band communication channel is established.

[0310] According to various embodiments of the present disclosure, a processor of an electronic device may be configured to control: determining whether a first external wireless communication circuit and a second external wireless communication circuit belong to the same charging device based on third identification information and at least a portion of fourth identification information received from a first external wireless communication circuit via a first out-of-band communication channel.

[0311] According to various embodiments of the present disclosure, the processor of the electronic device may be configured to control maintaining the first out-of-band communication channel based on at least a portion of a determination result that the second identification information is identical to the first identification information.

[0312] According to various embodiments of the present disclosure, the processor of the electronic device may be configured to control: detecting a change in the reception state of power being transmitted by the first external wireless power transmitting circuit, and releasing the first out-of-band communication channel when the change in the power reception state is detected.

[0313] According to various embodiments of the present disclosure, an electronic device may include a wireless power receiving circuit, a wireless communication circuit, and a processor, and the processor may be configured to: receive a signal for establishing a first out-of-band communication channel with a first external wireless communication circuit using the wireless communication circuit through a first in-band communication channel connected to a first wireless power transmitting circuit outside the electronic device, the first external wireless communication circuit corresponding to the first wireless power transmitting circuit; send first identification information corresponding to the wireless power receiving circuit to the first wireless power transmitting circuit through the first in-band communication channel; receive second identification information corresponding to the first wireless power transmitting circuit from the first wireless power transmitting circuit through the first in-band communication circuit; and establish the first out-of-band communication channel based on the second identification information.

[0314] According to various embodiments of the present disclosure, the processor of the electronic device may be configured to control: as part of an operation of transmitting the first identification information through the first in-band communication channel, to encrypt the first identification information.

[0315] According to various embodiments of the present disclosure, a processor of an electronic device may be configured to control: receiving power receiving mode switching data from a first external wireless power transmitting circuit via a first in-band communication channel; using the received data to authenticate a charging device including the first external wireless power transmitting circuit; and switching the power receiving mode of the wireless power receiving circuit based on the authentication result of the charging device.

[0316] According to various embodiments of the present disclosure, a processor of an electronic device may be configured to control: receiving power receiving mode switching data from a charging device including an external wireless power transmitting circuit through a first out-of-band communication channel; performing authentication on the charging device using the received data; and switching the power receiving mode of the wireless power receiving circuit based on the authentication result of the charging device.

[0317] According to various embodiments of the present disclosure, a processor of an electronic device may be configured to control: detecting a change in a power receiving mode associated with power being received through a wireless power receiving circuit from a charging device including an external wireless power transmitting circuit; and releasing a first out-of-band communication channel using a wireless communication circuit when a change in the power receiving state is detected.

[0318] According to various embodiments of the present disclosure, the processor of the electronic device may be configured to control: receiving the encrypted second identification information.

[0319] According to various embodiments of the present disclosure, an electronic device may include a battery, a wireless power receiving circuit, a wireless communication circuit, and a processor, wherein the processor is configured to control: charging the battery using a first power being wirelessly received from an external electronic device using the wireless power receiving circuit; sending first anonymous data using the wireless power receiving circuit through a first communication channel connected to the external electronic device; receiving second anonymous data using the wireless power receiving circuit through the first communication channel connected to the external electronic device; and when the second anonymous data is pre-specified identification information, wirelessly receiving second power from the external electronic device using the wireless power receiving circuit to charge the battery.

[0320] According to various embodiments of the present disclosure, the processor of the electronic device can be configured to control: determining whether the external electronic device supports decryption of the first anonymous data or encryption of the second anonymous data; and charging the battery without establishing a second communication channel based on determining that the external electronic device cannot support decryption of the first anonymous data or encryption of the second anonymous data.

[0321] According to various embodiments of the present disclosure, the processor of the electronic device can be configured to control: determining whether the external electronic device supports decryption of first anonymous data or encryption of second anonymous data; and based on determining that the external electronic device cannot support decryption of the first anonymous data or encryption of the second anonymous data, using the first power to charge the battery or stop charging the battery.

[0322] According to various embodiments of the present disclosure, an electronic device may include a battery, a wireless power receiving circuit, a wireless communication circuit, and a processor, wherein the processor is configured to control: charging the battery using power wirelessly received from a first external wireless power transmitting circuit outside the electronic device using the wireless power receiving circuit; receiving first identification information using the wireless power receiving circuit through a first in-band communication channel connected to the first external wireless power transmitting circuit; when the first in-band communication channel is established between the wireless power receiving circuit and the first external wireless power transmitting circuit, establishing a first out-of-band communication channel with the first external communication circuit based on the first identification information using the wireless communication circuit, the first external communication circuit corresponding to the first external wireless power transmitting circuit outside the electronic device; when the first out-of-band communication channel is established between the wireless communication circuit and the first external wireless communication circuit, receiving second identification information using the wireless power receiving circuit through a second external wireless power transmitting circuit outside the electronic device; determining whether the second identification information is received from a charging device including the first external wireless power transmitting circuit; and releasing the first out-of-band communication channel based on determining that the second identification information is not received from the charging device.

[0323] According to various embodiments of the present disclosure, an electronic device may include a wireless power receiving circuit, a wireless communication circuit, and a processor, wherein the processor is configured to control: using the wireless power receiving circuit to send first anonymous data through an in-band communication channel connected to a first external wireless power transmitting circuit outside the electronic device; using the wireless power receiving circuit to receive second anonymous data through an in-band communication channel connected to the first external wireless power transmitting circuit; and using the wireless communication circuit to establish an out-of-band communication channel based on a comparison result between the first anonymous data and the second anonymous data.

[0324] According to various embodiments of the present disclosure, the processor of the electronic device may be configured to control: as a part of sending the first anonymous data through the first in-band communication channel, encrypting the first anonymous data.

[0325] According to various embodiments of the present disclosure, a processor of an electronic device may be configured to control: determining whether a charging device including a first external wireless power transmission circuit supports decryption of first anonymous data or encryption of second anonymous data; and skipping establishing an out-of-band communication channel based on determining that the charging device cannot support decryption of the first anonymous data or encryption of the second anonymous data.

[0326] According to various embodiments of the present disclosure, the electronic device also includes a battery, and the processor of the electronic device can be configured to control: skipping the establishment of an out-of-band communication channel based on determining that the charging device cannot support encryption, performing non-anonymous data communication through an in-band communication channel, and charging the battery using a power receiving circuit.

[0327] According to various embodiments of the present disclosure, an electronic device may include a wireless power receiving circuit, a wireless communication circuit, and a processor, wherein the processor is configured to control: using the wireless power receiving circuit to send first anonymous data through an in-band communication channel of a first external wireless power transmitting circuit connected to the outside of the electronic device; using the wireless power receiving circuit to receive second anonymous data through an out-of-band communication channel of the electronic device; and managing the in-band communication channel or the out-of-band communication channel based on the first anonymous data or the second anonymous data.

[0328] According to various embodiments of the present disclosure, a processor of an electronic device may be configured to control: detecting a first random number included in first anonymous data, detecting a second random number included in second anonymous data, and managing at least one of an in-band communication channel and an out-of-band communication channel based on a determination result of whether the first random number and the second random number are identical to each other.

[0329] Fig.15 is a flowchart illustrating an operating method of an electronic device according to various embodiments of the present disclosure.

[0330] exist Fig.15 In an embodiment of the present invention, in operation 1501, an electronic device (eg, the first electronic device 401 and the electronic device 510) may wirelessly receive power from an external electronic device (eg, the external electronic device 520).

[0331] According to various embodiments of the present disclosure, the electronic device 510 may perform data communication with the external electronic device 520 through a first communication channel established using a portion of a frequency band for wireless power transmission.

[0332] According to various embodiments of the present disclosure, at operation 1503 , the electronic device 510 may receive a second communication channel activation request signal through the first communication channel.

[0333] According to various embodiments of the present disclosure, the second communication channel activation request signal may include data for establishing the second communication channel. The data for establishing the second communication channel may include address data of the external electronic device 520 for the second communication channel and information about the second communication channel. Various methods (e.g., anonymous packets) may be used to encrypt the data included in the second communication channel activation request signal.

[0334] According to various embodiments of the present disclosure, in operation 1505, the electronic device 510 may send a signal including identification information of the electronic device 510 (i.e., first identification information) and a request for identification information of the external electronic device 520 (i.e., second identification information) to the second external electronic device 520 through a first communication channel.

[0335] According to various embodiments of the present disclosure, the first identification information may be identification information of the first electronic device 401 sent through the first communication channel 441. The second identification information may include identification information of the first power transmission device 402 sent through the first communication channel 441. The first identification information and the second identification information may include an ID of the device (e.g., a model name and identification information of the electronic device), operation mode information, IMEI, communication circuit identification information (e.g., identification information and MAC address for establishing a second communication channel), and a public key for encryption. The first identification information and the second identification information may be encrypted in the form of anonymous data to be sent / received.

[0336] According to various embodiments of the present disclosure, the electronic device 510 may send a signal requesting the second identification information together with the first identification information. According to an embodiment, the electronic device 510 may encrypt the first identification information using various methods and send the encrypted identification information to the external electronic device. By encrypting the identification information, another electronic device (e.g., the second electronic device 403) connected to the external electronic device 520 may be prevented from detecting the identification information of the electronic device 510, thereby enhancing security.

[0337] According to various embodiments of the present disclosure, at operation 1507 , the electronic device 510 may receive second identification information through the first communication channel.

[0338] According to various embodiments of the present disclosure, at operation 1509 , the electronic device 510 may activate the second communication channel based on the second identification information.

[0339] According to various embodiments of the present disclosure, the electronic device 510 may use the second identification information to activate the second communication channel. The electronic device 510 may be controlled to establish a second communication channel with the external electronic device 520 identified by the second identification information, and avoid establishing a second communication channel with other external electronic devices (e.g., the second power transmitting device 404). The external electronic device 520 may also be controlled to establish a second communication channel with the electronic device 510 identified by the first identification information. For example, the external electronic device 520 may be controlled to establish a second communication channel with the electronic device 510 identified by the first identification information, and avoid establishing a second communication channel with another electronic device (e.g., the second electronic device 403). Through the above operations, cross-connection can be avoided.

[0340] Fig.16 is a flowchart illustrating an operating method of an electronic device according to various embodiments of the present disclosure.

[0341] refer to Fig.16, in operation 1601, an electronic device (eg, the first electronic device 401 and the electronic device 510) may receive second identification information from an external electronic device (eg, the external electronic device 520) through a first communication channel.

[0342] According to various embodiments of the present disclosure, the electronic device 510 may receive third identification information through the second communication channel at operation 1603. The third identification information may be identification information of the external electronic device 520 received through the second communication channel.

[0343] According to various embodiments of the present disclosure, at operation 1605, the electronic device 510 may determine whether the third identification information is received from the external electronic device 520. The second identification information may be compared with the third identification information to verify that the second identification information and the third identification information are received from the same external electronic device.

[0344] According to various embodiments of the present disclosure, the electronic device 510 may determine whether the third identification information is received from the external electronic device 520 based on at least the second identification information. The electronic device 510 may compare the second identification information and the third identification information to determine whether the second identification information and the third identification information are identical to each other. When the second identification information and the third identification information are identical to each other, the electronic device 510 may verify that the third identification information is received from the external electronic device 520.

[0345] According to various embodiments of the present disclosure, the electronic device 510 may determine whether to release the second communication channel based on the third identification information verification result and control the first wireless communication circuit 521 based on the determination result. When it is determined that the third identification information is sent by an external electronic device that has sent the second identification information, the electronic device 510 may maintain the first communication channel and the second communication channel.

[0346] According to various embodiments of the present disclosure, when it is determined that the third identification information is received from the external electronic device other than the external electronic device 520 , the electronic device 510 may release the second communication channel at operation 1607 .

[0347] According to various embodiments of the present disclosure, at operation 1609 , the electronic device 510 may receive fourth identification information through the first communication channel.

[0348] According to various embodiments of the present disclosure, at operation 1611, the electronic device 510 may re-establish the second communication channel by using the fourth identification information received through the first communication channel.

[0349] According to various embodiments of the present disclosure, at operation 1613 , when it is determined that the third identification information is received from the external electronic device 520 , the electronic device 510 may maintain the first communication channel and the second communication channel.

[0350] Fig.17 is a flowchart illustrating an operating method of an electronic device according to various embodiments of the present disclosure.

[0351] Reference Fig.17 , at operation 1701, an electronic device (e.g., the first electronic device 401) may receive first identification information through a first in-band communication channel (e.g., the first communication channel 441) established with a first external wireless power transmission circuit (e.g., the wireless power transmission circuit 450).

[0352] According to various embodiments of the present disclosure, the first identification information may be an identifier of the first wireless power transmitting circuit.

[0353] According to various embodiments of the present disclosure, at operation 1703, the first electronic device 401 may establish a first out-of-band communication channel (eg, the second communication channel 451) with the first external wireless communication circuit based on the first identification information.

[0354] The first out-of-band communication channel may be a communication channel established between the first electronic device 401 and a first wireless communication circuit corresponding to the first external wireless power transmission circuit. The first electronic device 401 may establish the first out-of-band communication channel based on data for connecting the first out-of-band communication channel included in the data related to the first identification information.

[0355] According to various embodiments of the present disclosure, in operation 1705, the first electronic device 401 may receive second identification information through a second in-band communication channel (eg, the first communication channel 441) connected to a second wireless power transmission circuit (eg, the wireless power transmission circuit 450).

[0356] According to various embodiments of the present disclosure, the second identification information may be an identifier of the second wireless power transmitting circuit.

[0357] According to various embodiments of the present disclosure, at operation 1707 , the electronic device may compare the first identification information and the second identification information.

[0358] According to various embodiments of the present disclosure, at operation 1709, the electronic device may determine whether the first external wireless power transmission circuit and the second wireless power transmission circuit belong to the same charging device (e.g., the first power transmission device 402). The first electronic device 401 may determine whether the first external wireless power circuit and the second external wireless power circuit belong to the same charging device based on a comparison result between the first identification information and the second identification information.

[0359] According to various embodiments of the present disclosure, at operation 1711, when it is determined that the first external wireless power transmission circuit and the second wireless power transmission circuit belong to the same charging device, the electronic device may maintain the connection of the first out-of-band communication channel.

[0360] According to various embodiments of the present disclosure, at operation 1713 , when it is determined that the first external wireless power transmission circuit and the second wireless power transmission circuit belong to different charging devices, the first electronic device 401 may release the first out-of-band communication channel.

[0361] According to various embodiments of the present disclosure, at operation 1715, the first electronic device 401 may establish a second out-of-band communication channel. The second out-of-band communication channel may be a communication channel established between the first electronic device 401 and a second external wireless communication circuit corresponding to a second external wireless power transmission circuit. The first electronic device 401 may establish the second out-of-band communication channel based on data for establishing the second out-of-band communication channel included in the data related to the second identification information.

[0362] According to various embodiments of the present disclosure, an operating method of an electronic device may include: using a wireless power receiving circuit to receive first identification information through a first in-band communication channel connected to a first external wireless power transmitting circuit outside the electronic device; when the first in-band communication channel is established between the wireless power receiving circuit and the first external wireless power transmitting circuit, using a wireless communication circuit to establish a first out-of-band communication channel with the first external wireless communication circuit based on the first identification information, the first external wireless communication circuit corresponding to the first wireless power transmitting circuit outside the electronic device; when the first out-of-band communication channel is established between the wireless communication circuit and the first external wireless communication circuit, using the wireless power receiving circuit to receive second identification information through a second in-band communication channel connected to a second external wireless power transmitting circuit outside the electronic device; when the first out-of-band communication channel is established between the wireless communication circuit and the first external wireless communication circuit, when the second in-band communication channel is established between the wireless power receiving circuit and the second external power transmitting circuit, disconnecting the first out-of-band communication channel; and using the wireless communication circuit to automatically establish a second out-of-band communication channel with the second external communication circuit based on the second identification information, the second external communication circuit corresponding to the second wireless power transmitting circuit outside the electronic device.

[0363] According to various embodiments of the present disclosure, the operating method of the electronic device may further include: identifying that the first external wireless power transmission circuit and the second external wireless power transmission circuit belong to the same charging device based on at least a portion of the first identification information and the second identification information.

[0364] According to various embodiments of the present disclosure, automatically establishing a second out-of-band communication channel in an operating method of an electronic device may include: comparing second identification information and first identification information; and establishing the second out-of-band communication channel based on at least a portion of a determination result that the second identification information is different from the first identification information.

[0365] According to various embodiments of the present disclosure, automatically establishing a second out-of-band communication channel in an operating method of an electronic device may include: receiving third identification information from a first external wireless communication circuit through a first out-of-band communication channel before the second out-of-band communication channel is established, comparing the third identification information and the second identification information, and establishing the second out-of-band communication channel based on at least a part of a determination result that the third identification information is different from the second identification information.

[0366] According to various embodiments of the present disclosure, the operating method of the electronic device may further include receiving fourth identification information from the second external wireless communication circuit after the second out-of-band communication channel is established.

[0367] According to various embodiments of the present disclosure, the operating method of the electronic device may also include determining whether the first external wireless communication circuit and the second external wireless communication circuit belong to the same charging device based on the third identification information and at least a portion of the fourth identification information received from the first external wireless communication circuit through the first out-of-band communication channel.

[0368] The electronic device according to various embodiments may be one of various types of electronic devices. The electronic device may include, for example, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a household appliance. According to an embodiment of the present disclosure, the electronic device is not limited to those electronic devices described above.

[0369] It should be understood that the various embodiments of the present disclosure and the terms used therein are not intended to limit the technical features set forth herein to specific embodiments, but include various changes, equivalents or alternative forms for the corresponding embodiments. For the description of the accompanying drawings, similar reference numerals may be used to refer to similar or related elements. It will be understood that the nouns in the singular form corresponding to the term may include one or more things unless the relevant context clearly indicates otherwise. As used herein, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C" and "at least one of A, B or C" may include all possible combinations of items listed together with the corresponding one of the multiple phrases. As used herein, terms such as "1st" and "2nd" or "first" and "second" may be used to simply distinguish the corresponding component from another component, and do not limit the component in other aspects (e.g., importance or order). It will be understood that if an element (e.g., a first element) is referred to as being “combined with another element (e.g., the second element)”, “combined to another element (e.g., the second element)”, “connected with another element (e.g., the second element)”, or “connected to another element (e.g., the second element)” when the terms “operably” or “communicatively” are used or when the terms “operably” or “communicatively” are not used, it means that the element may be directly (e.g., wired) connected to the other element, wirelessly connected to the other element, or connected to the other element via a third element.

[0370] As used herein, the term "module" may include units implemented in hardware, software, or firmware, and may be used interchangeably with other terms (e.g., "logic," "logic block," "portion," or "circuit"). A module may be a single integrated component adapted to perform one or more functions or a minimum unit or portion of the single integrated component. For example, according to an embodiment, a module may be implemented in the form of an application specific integrated circuit (ASIC).

[0371] The various embodiments described herein may be implemented as software (e.g., program 140) including one or more instructions stored in a storage medium (e.g., internal memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). For example, under the control of a processor, a processor (e.g., processor 120) of the machine (e.g., electronic device 101) may call at least one of the one or more instructions stored in the storage medium and execute the at least one instruction with or without the use of one or more other components. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be run by an interpreter. A machine-readable storage medium may be provided in the form of a non-transitory storage medium. Among them, the term "non-transitory" only means that the storage medium is a tangible device and does not include a signal (e.g., an electromagnetic wave), but the term does not distinguish between data being semi-permanently stored in a storage medium and data being temporarily stored in a storage medium.

[0372] According to an embodiment, the method according to various embodiments of the present disclosure may be included and provided in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be released in the form of a machine-readable storage medium (e.g., a compact disk read-only memory (CD-ROM)), or may be downloaded via an application store (e.g., Play Store TM ) The computer program product may be published (e.g., downloaded or uploaded) online, or the computer program product may be distributed (e.g., downloaded or uploaded) directly between two user devices (e.g., smart phones). If published online, at least part of the computer program product may be temporarily generated, or at least part of the computer program product may be at least temporarily stored in a machine-readable storage medium (such as a memory of a manufacturer's server, an application store's server, or a forwarding server).

[0373] According to various embodiments, each component (e.g., module or program) in the above-mentioned components may include a single entity or multiple entities. According to various embodiments, one or more components in the above-mentioned components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, according to various embodiments, the integrated component may still perform the one or more functions of each component in the multiple components in the same or similar manner as a corresponding component in the multiple components before integration. According to various embodiments, the operations performed by a module, program or another component may be performed sequentially, in parallel, repeatedly or in a heuristic manner, or one or more operations in the operations may be run or omitted in different orders, or one or more other operations may be added.

Claims

1. A portable communication device, comprising: Wireless power receiving circuit; Wireless communication circuits; as well as A processor, the processor being configured to: receiving first identification information through a first in-band communication channel between a first external wireless power transmission circuit outside the portable communication device and the wireless power reception circuit, when the first in-band communication channel between the wireless power receiving circuit and the first external wireless power transmitting circuit is established, a first out-of-band communication channel between a first external wireless communication circuit and the wireless communication circuit is established based on the first identification information, the first external wireless communication circuit corresponding to the first external wireless power transmitting circuit outside the portable communication device, third identification information being received from the first external wireless communication circuit through the first out-of-band communication channel, when the first out-of-band communication channel is established, receiving second identification information through a second in-band communication channel between a second external wireless power transmitting circuit outside the portable communication device and the wireless power receiving circuit, comparing the third identification information with the second identification information, and Based on at least a part of the determination result that the third identification information is different from the second identification information, the first out-of-band communication channel is disconnected, and a second out-of-band communication channel is automatically established between a second external wireless communication circuit and the wireless communication circuit, wherein the second external wireless communication circuit corresponds to the second external wireless power transmission circuit outside the portable communication device.

2. The portable communication device according to claim 1, wherein: The processor is further configured to determine whether the first external wireless power transmission circuit and the second external wireless power transmission circuit belong to the same charging device based on at least a portion of the first identification information and the second identification information.

3. The portable communication device according to claim 1, wherein: The processor is further configured to: comparing the second identification information with the first identification information, and The second out-of-band communication channel is established based on at least a portion of a determination that the second identification information is different from the first identification information.

4. The portable communication device according to claim 1, wherein: The processor is further configured to: after establishing the second out-of-band communication channel, receive fourth identification information from the second external wireless communication circuit.

5. The portable communication device according to claim 4, wherein: The processor is further configured to determine whether the first external wireless communication circuit and the second external wireless communication circuit belong to the same charging device based on at least a portion of the third identification information and the fourth identification information received from the first external wireless communication circuit through the first out-of-band communication channel.

6. The portable communication device according to claim 1, wherein: The processor is further configured to maintain the first out-of-band communication channel based on at least a portion of a determination that the second identification information is the same as the first identification information.

7. The portable communication device according to claim 1, wherein: The processor is further configured to: detecting a change in a reception state of power being transmitted by the first external wireless power transmission circuit, and When a change in the power receiving state is detected, the wireless communication circuit is controlled to release the first out-of-band communication channel.

8. A method for operating a portable communication device, the method comprising: receiving first identification information through a first in-band communication channel between a first external wireless power transmission circuit external to the portable communication device and a wireless power reception circuit of the portable communication device; when the first in-band communication channel between the wireless power receiving circuit and the first external wireless power transmitting circuit is established, a first out-of-band communication channel between a first external wireless communication circuit and a wireless communication circuit of the portable communication device is established based on the first identification information, the first external wireless communication circuit corresponding to the first external wireless power transmitting circuit outside the portable communication device, third identification information is received from the first external wireless communication circuit through the first out-of-band communication channel, receiving second identification information through a second in-band communication channel between a second external wireless power transmission circuit and the wireless power reception circuit outside the portable communication device when the first out-of-band communication channel between the wireless communication circuit and the first external wireless communication circuit is established; comparing the third identification information with the second identification information, and Based on at least a part of the determination result that the third identification information is different from the second identification information, the first out-of-band communication channel is disconnected, and a second out-of-band communication channel is automatically established between a second external wireless communication circuit and the wireless communication circuit, wherein the second external wireless communication circuit corresponds to the second external wireless power transmission circuit outside the portable communication device.

9. The method according to claim 8, further comprising: It is determined whether the first external wireless power transmission circuit and the second external wireless power transmission circuit belong to the same charging device based on at least a portion of the first identification information and the second identification information.

10. The method according to claim 8, wherein: The automatically establishing the second out-of-band communication channel comprises: comparing the second identification information with the first identification information; and The second out-of-band communication channel is established based on at least a portion of a determination that the second identification information is different from the first identification information.

11. The method according to claim 8, further comprising: After the second out-of-band communication channel is established, fourth identification information is received from the second external wireless communication circuit.

12. The method according to claim 11, further comprising: It is determined whether the first external wireless communication circuit and the second external wireless communication circuit belong to the same charging device based on at least a portion of the third identification information and the fourth identification information received from the first external wireless communication circuit through the first out-of-band communication channel.

Images