WO2024214964A1 - Dispositif électronique permettant de fournir un service audio, et son procédé de fonctionnement - Google Patents

Dispositif électronique permettant de fournir un service audio, et son procédé de fonctionnement Download PDF

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Publication number
WO2024214964A1
WO2024214964A1 PCT/KR2024/003160 KR2024003160W WO2024214964A1 WO 2024214964 A1 WO2024214964 A1 WO 2024214964A1 KR 2024003160 W KR2024003160 W KR 2024003160W WO 2024214964 A1 WO2024214964 A1 WO 2024214964A1
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WIPO (PCT)
Prior art keywords
electronic device
audio channel
external electronic
common audio
common
Prior art date
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Ceased
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PCT/KR2024/003160
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English (en)
Korean (ko)
Inventor
정구필
강두석
지현호
진주연
한의범
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to EP24712397.9A priority Critical patent/EP4482170A4/fr
Publication of WO2024214964A1 publication Critical patent/WO2024214964A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones

Definitions

  • the present disclosure relates to an electronic device providing audio service and a method of operating the same.
  • Bluetooth which is one of the short-range communication methods
  • electronic devices using Bluetooth are also widely used.
  • a pair of ear buds that can be worn on each ear of a user are widely used as an ear-wearable device.
  • An ear-wearable device can provide various functions. For example, an ear-wearable device can input and confirm a user's voice using a microphone, transmit audio data related to the user's voice to an electronic device (e.g., a smartphone), and output audio data received from the electronic device using a speaker.
  • an electronic device e.g., a smartphone
  • the Bluetooth mode may include the Bluetooth legacy (or Bluetooth classic) mode, and/or the Bluetooth low energy (BLE) mode.
  • An electronic device e.g., a smartphone
  • providing an audio service based on the BLE mode may independently establish a communication link (e.g., a connected isochronous stream: CIS) with each of external electronic devices (e.g., a first external electronic device and/or a second external electronic device), and transmit and receive data with the external electronic devices through the established communication link (e.g., connection-based communication).
  • the electronic device may establish a communication link (e.g., a broadcast isochronous stream: BIS) and transmit and receive data with the external electronic devices through the established communication link (e.g., broadcast-based communication).
  • an audio service based on the BLE method can be provided via either a connection-based CIS or a non-connection-based BIS.
  • all electronic devices e.g., the electronic device, the first external electronic device, and/or the second external electronic device
  • the number of links that need to be established between the electronic devices participating in the CIS-based multi-party audio service may increase exponentially, and this exponential increase in the number of links may not only make it difficult to provide a CIS-based multi-party audio service, but may also make it impossible to provide a CIS-based multi-party audio service.
  • a multi-party audio service When a multi-party audio service is provided through a BIS connection, electronic devices participating in the multi-party audio service can transmit audio data.
  • a method for receiving audio data through a BIS connection is not specifically defined, and therefore, it is impossible to define when and how electronic devices participating in the multi-party audio service can receive audio data, and therefore, it may make it difficult or impossible to provide the multi-party audio service.
  • One embodiment of the present disclosure provides an electronic device for providing audio service and a method of operating the same.
  • One embodiment of the present disclosure provides an electronic device for providing a multi-party audio service and a method of operating the same.
  • an electronic device includes at least one communication circuit, at least one processor, and a memory storing instructions.
  • the instructions when executed by the at least one processor, cause the electronic device to establish a common audio channel, which is an audio service link commonly used by the electronic device and at least one external electronic device, based on a set condition.
  • the instructions when executed by the at least one processor, cause the electronic device to share, through the at least one communication circuit, information about the common audio channel and time information used for synchronization with the common audio channel with the at least one external electronic device.
  • the instructions when executed by the at least one processor, cause the electronic device to operate in a receive mode capable of receiving audio data from the at least one external electronic device for the common audio channel.
  • an electronic device includes at least one communication circuit, at least one processor, and a memory storing instructions.
  • the instructions when executed by the at least one processor, cause the electronic device to receive, through the at least one communication circuit, from at least one external electronic device or server, information about a common audio channel, which is an audio service link commonly used by the electronic device and the at least one external electronic device, and time information used for synchronization with respect to the common audio channel.
  • the instructions when executed by the at least one processor, cause the electronic device to perform a synchronization operation for the common audio channel based on information about the common audio channel and time information used for synchronization for the common audio channel.
  • the instructions when executed by the at least one processor, cause the electronic device to operate in a receive mode capable of receiving audio data from the at least one external electronic device for the common audio channel.
  • a method includes establishing a common audio channel, which is an audio service link commonly used by the electronic device and at least one external electronic device, based on a set condition.
  • the method includes sharing information about the common audio channel and time information used for synchronization with the at least one external electronic device.
  • the method includes operating the electronic device in a receiving mode capable of receiving audio data from the at least one external electronic device for the common audio channel.
  • a method includes receiving, from at least one external electronic device or server, information about a common audio channel, which is an audio service link commonly used by the electronic device and the at least one external electronic device, and time information used for synchronization with respect to the common audio channel.
  • the method includes performing a synchronization operation for the common audio channel based on information about the common audio channel and time information used for synchronization for the common audio channel.
  • the method includes operating the electronic device in a receiving mode capable of receiving audio data from the at least one external electronic device for the common audio channel.
  • a storage medium storing at least one computer-readable instruction is provided.
  • the at least one instruction when executed by at least one processor of the electronic device, causes the electronic device to perform at least one operation.
  • the at least one operation includes establishing a common audio channel, which is an audio service link commonly used by the electronic device and at least one external electronic device, based on a set condition.
  • the at least one operation includes sharing information about the common audio channel and time information used for synchronization with the at least one external electronic device.
  • the at least one operation comprises operating the electronic device in a receive mode capable of receiving audio data from the at least one external electronic device for the common audio channel.
  • a storage medium storing at least one computer-readable instruction may be provided.
  • the at least one instruction when executed by at least one processor of the electronic device, may cause the electronic device to perform at least one operation.
  • the at least one operation may include receiving, from at least one external electronic device or server, information about a common audio channel, which is an audio service link commonly used by the electronic device and the at least one external electronic device, and time information used for synchronization with respect to the common audio channel.
  • the at least one operation may include performing a synchronization operation for the common audio channel based on information about the common audio channel and time information used for synchronization for the common audio channel.
  • the at least one operation may include operating in a receiving mode in which the electronic device can receive audio data from the at least one external electronic device for the common audio channel.
  • FIG. 1 is a block diagram schematically illustrating an electronic device within a network environment according to one embodiment.
  • FIG. 2 is a diagram schematically illustrating connections between electronic devices based on the Bluetooth method in a wireless communication network according to one embodiment.
  • FIG. 3 is a block diagram schematically illustrating a second external electronic device in a wireless communication network according to one embodiment.
  • FIG. 4 is a block diagram schematically illustrating a first external electronic device in a wireless communication network according to one embodiment.
  • FIG. 5 is a diagram schematically illustrating the configuration of CIG events and CIS events in a wireless communication network according to one embodiment.
  • FIG. 6 is a diagram schematically illustrating the configuration of BIG events and BIS events in a wireless communication network according to one embodiment.
  • FIG. 7 is a flowchart schematically illustrating an operating method of an electronic device according to one embodiment.
  • FIG. 8 is a flowchart schematically illustrating an operating method of a first external electronic device according to one embodiment.
  • FIG. 9 is a flowchart schematically illustrating an operating method of a first external electronic device according to one embodiment.
  • FIG. 10 is a diagram schematically illustrating connections between electronic devices based on the Bluetooth method in a wireless communication network according to one embodiment.
  • FIG. 11 is a diagram schematically illustrating an operation of an electronic device establishing a common audio channel in a wireless communication network according to one embodiment.
  • FIG. 12 is a diagram schematically illustrating the format of a BLE ADV packet in a wireless communication network according to one embodiment.
  • FIG. 13 is a diagram schematically illustrating a UI displayed on an electronic device when the electronic device receives a BLE ADV packet in a wireless communication network according to one embodiment.
  • FIG. 14 is a diagram schematically illustrating a common audio channel generated by an electronic device in a wireless communication network according to one embodiment.
  • FIG. 15 is a diagram schematically illustrating an operation of sharing information about a common audio channel generated by an electronic device and time information used for common audio channel synchronization in a wireless communication network according to one embodiment.
  • FIG. 16 is a diagram schematically illustrating an operation in which multiple electronic devices are synchronized to a common audio channel in a wireless communication network according to one embodiment.
  • FIG. 17 is a diagram schematically illustrating an operation in which multiple electronic devices are synchronized to a common audio channel in a wireless communication network according to one embodiment.
  • FIG. 18 is a diagram schematically illustrating transmission and reception operations performed by an electronic device on a common audio channel in a wireless communication network according to one embodiment.
  • FIG. 19 is a diagram schematically illustrating transmission and reception operations performed by a first external electronic device on a common audio channel in a wireless communication network according to one embodiment.
  • FIG. 20 is a diagram schematically illustrating an audio data exchange operation between an electronic device and a first external electronic device in a wireless communication network according to one embodiment.
  • FIG. 21 is a diagram schematically illustrating an audio data exchange operation between a first external electronic device, a third external electronic device, and a fourth external electronic device in a wireless communication network according to one embodiment.
  • FIG. 22 is a diagram schematically illustrating an operation of an electronic device establishing a common audio channel in a wireless communication network according to one embodiment.
  • FIG. 23 is a diagram schematically illustrating a receiving operation performed by an electronic device after a common audio channel is created in a wireless communication network according to one embodiment.
  • FIG. 24 is a diagram schematically illustrating operations of a second external electronic device, a third external electronic device, and a fourth external electronic device in a wireless communication network according to one embodiment.
  • FIG. 25 is a diagram schematically illustrating operations of a second external electronic device, a third external electronic device, and a fourth external electronic device in a wireless communication network according to one embodiment.
  • first, second, etc. used herein may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • a component When it is said that a component is “connected” or “connected” to another component, it may be directly connected or connected to that other component, but there may be other components in between. On the other hand, when it is said that a component is “directly connected” or “connected” to another component, it should be understood that there are no other components in between.
  • the electronic device may be called a terminal, a mobile station, mobile equipment (ME), user equipment (UE), a user terminal (UT), a subscriber station (SS), a wireless device, a handheld device, or an access terminal (AT).
  • the electronic device in an embodiment of the present disclosure may be a device having a communication function, such as, for example, a mobile phone, a personal digital assistant (PDA), a smartphone, a wireless MODEM, or a laptop.
  • PDA personal digital assistant
  • smartphone a smartphone
  • a wireless MODEM or a laptop.
  • FIG. 1 is a block diagram schematically illustrating an electronic device (101) within a network environment (100) according to one embodiment.
  • an electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network), or may communicate with an electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network).
  • the electronic device (101) may communicate with the electronic device (104) through the server (108).
  • the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197).
  • the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may include one or more other components.
  • some of these components e.g., the sensor module (176), the camera module (180), or the antenna module (197) may be integrated into one component (e.g., the display module (160)).
  • the processor (120) may control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) by executing, for example, software (e.g., a program (140)), and may perform various data processing or calculations.
  • the processor (120) may store a command or data received from another component (e.g., a sensor module (176) or a communication module (190)) in the volatile memory (132), process the command or data stored in the volatile memory (132), and store result data in the non-volatile memory (134).
  • the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphic processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that may operate independently or together therewith.
  • a main processor (121) e.g., a central processing unit or an application processor
  • an auxiliary processor (123) e.g., a graphic processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor
  • the secondary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a given function.
  • the secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.
  • the auxiliary processor (123) may control at least a part of functions or states associated with at least one of the components of the electronic device (101) (e.g., the display module (160), the sensor module (176), or the communication module (190)), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state.
  • the auxiliary processor (123) e.g., an image signal processor or a communication processor
  • the auxiliary processor (123) may include a hardware structure specialized for processing an artificial intelligence model.
  • the artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, in the electronic device (101) on which artificial intelligence is performed, or may be performed through a separate server (e.g., server (108)).
  • the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above.
  • the artificial intelligence model may include a plurality of artificial neural network layers.
  • the artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), deep Q-networks, or a combination of two or more of the above, but is not limited to the examples described above.
  • the artificial intelligence model may additionally or alternatively include a software structure.
  • the memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101).
  • the data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto.
  • the memory (130) can include volatile memory (132) or nonvolatile memory (134).
  • the program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).
  • the input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101).
  • the input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).
  • the audio output module (155) can output an audio signal to the outside of the electronic device (101).
  • the audio output module (155) can include, for example, a speaker or a receiver.
  • the speaker can be used for general purposes such as multimedia playback or recording playback.
  • the receiver can be used to receive an incoming call. According to one embodiment, the receiver can be implemented separately from the speaker or as a part thereof.
  • the display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101).
  • the display module (160) can include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device.
  • the display module (160) can include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.
  • the audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can obtain sound through an input module (150), or output sound through an audio output module (155), or an external electronic device (e.g., an electronic device (102)) (e.g., a speaker or a headphone) directly or wirelessly connected to the electronic device (101).
  • an electronic device e.g., an electronic device (102)
  • a speaker or a headphone directly or wirelessly connected to the electronic device (101).
  • the sensor module (176) can detect an operating state (e.g., power or temperature) of the electronic device (101) or an external environmental state (e.g., user state) and generate an electric signal or data value corresponding to the detected state.
  • the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.
  • the interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)).
  • the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
  • HDMI high definition multimedia interface
  • USB universal serial bus
  • SD card interface Secure Digital Card
  • connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., the electronic device (102)).
  • the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).
  • the haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that a user can perceive through a tactile or kinesthetic sense.
  • the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module (180) can capture still images and moving images.
  • the camera module (180) can include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module (188) can manage power supplied to the electronic device (101).
  • the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery (189) can power at least one component of the electronic device (101).
  • the battery (189) can include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.
  • the communication module (190) may support establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., the electronic device (102), the electronic device (104), or the server (108)), and performance of communication through the established communication channel.
  • the communication module (190) may operate independently from the processor (120) (e.g., the application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication.
  • 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 GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module).
  • a wireless communication module (192) e.g., a cellular communication module, a short-range wireless communication module, or a GNSS (global navigation satellite system) communication module
  • a wired communication module (194) e.g., a local area network (LAN) communication module, or a power line communication module.
  • a corresponding communication module may communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, Wi-Fi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)).
  • a first network (198) e.g., a short-range communication network such as Bluetooth, Wi-Fi (wireless fidelity) direct, or IrDA (infrared data association)
  • a second network (199) e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)
  • a computer network e.g.
  • the wireless communication module (192) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196) to verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199).
  • subscriber information e.g., an international mobile subscriber identity (IMSI)
  • IMSI international mobile subscriber identity
  • the wireless communication module (192) can support a 5G network and next-generation communication technology after a 4G network, for example, NR access technology (new radio access technology).
  • the NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), terminal power minimization and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)).
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC ultra-reliable and low-latency communications
  • the wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate.
  • a high-frequency band e.g., mmWave band
  • the wireless communication module (192) may support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna.
  • the wireless communication module (192) may support various requirements specified in an electronic device (101), an external electronic device (e.g., an electronic device (104)), or a network system (e.g., a second network (199)).
  • the wireless communication module (192) may support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL) each, or 1 ms or less for round trip) for URLLC realization.
  • a peak data rate e.g., 20 Gbps or more
  • a loss coverage e.g., 164 dB or less
  • U-plane latency e.g., 0.5 ms or less for downlink (DL) and uplink (UL) each, or 1 ms or less for round trip
  • the antenna module (197) can transmit or receive signals or power to or from the outside (e.g., an external electronic device).
  • the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB).
  • the antenna module (197) may include a plurality of antennas (e.g., an array antenna).
  • at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199) may be selected from the plurality of antennas by, for example, the communication module (190).
  • a signal or power may be transmitted or received between the communication module (190) and the external electronic device through the selected at least one antenna.
  • another component e.g., a radio frequency integrated circuit (RFIC)
  • RFIC radio frequency integrated circuit
  • the antenna module (197) can form a mmWave antenna module.
  • the mmWave antenna module can include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.
  • a first side e.g., a bottom side
  • a plurality of antennas e.g., an array antenna
  • peripheral devices e.g., a bus, a general purpose input and output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)
  • GPIO general purpose input and output
  • SPI serial peripheral interface
  • MIPI mobile industry processor interface
  • a command or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199).
  • Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101).
  • all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of executing the function or service by itself or in addition, request one or more external electronic devices to perform at least a part of the function or service.
  • One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or 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 is or additionally processed, as at least a part of a response to the request.
  • cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example.
  • the electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example.
  • the external electronic device (104) may include an IoT (Internet of Things) device.
  • the server (108) may be an intelligent server using machine learning and/or a neural network.
  • the external electronic device (104) or the server (108) may be included in the second network (199).
  • the electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.
  • An electronic device may be a device of various forms.
  • the electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device.
  • a portable communication device e.g., a smartphone
  • first, second, or first or second may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order).
  • a component e.g., a first
  • another component e.g., a second
  • functionally e.g., a third component
  • module used in one embodiment of this document may include a unit implemented in hardware, software or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example.
  • a module may be an integrally configured component or a minimum unit of the component or a part thereof that performs one or more functions.
  • a module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • An embodiment of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)).
  • a processor e.g., a processor (120)
  • the machine e.g., the electronic device (101)
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • the machine-readable storage medium may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.
  • the method according to one embodiment disclosed in the present document may be provided as included in a computer program product.
  • the computer program product may be traded between a seller and a buyer as a commodity.
  • the computer program product may be distributed in the form of a machine-readable storage medium (e.g., a compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store TM ) or directly between two user devices (e.g., smartphones).
  • an application store e.g., Play Store TM
  • at least a part of the computer program product may be at least temporarily stored or temporarily generated in a machine-readable storage medium, such as a memory of a manufacturer's server, a server of an application store, or an intermediary server.
  • each of the components may include a single or multiple entities, and some of the multiple entities may be separated and arranged in other components.
  • one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added.
  • the multiple components e.g., modules or programs
  • the integrated component may perform one or more functions of each of the multiple components identically or similarly to those performed by the corresponding component of the multiple components before the integration.
  • the operations performed by the module, program or other component may be executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.
  • FIG. 2 is a diagram schematically illustrating connections between electronic devices based on the Bluetooth method in a wireless communication network according to one embodiment.
  • an electronic device (101) may be wirelessly connected to a first external electronic device (200) (e.g., an ear-wearable device) (e.g., the electronic device (102) of FIG. 1).
  • the electronic device (101) may be a smartphone.
  • the first external electronic device (200) may include a first earbud (202) (e.g., a left ear bud) and/or a second earbud (204) (e.g., a right ear bud).
  • the first earbud (202) may function as a first audio channel (e.g., a left audio channel), and the second earbud (204) may function as a second audio channel (e.g., a right audio channel).
  • a first audio channel e.g., a left audio channel
  • a second audio channel e.g., a right audio channel
  • each of the left earbud (202) and the light earbud (204) may operate as an audio sink device, and the electronic device (101) may operate as an audio source device.
  • the Bluetooth method may include a Bluetooth legacy (or Bluetooth classic) method, and/or a Bluetooth low energy (BLE) method.
  • first earbud (202) and/or the second earbud (204) are included in a first external electronic device (200) (e.g., an ear wearable device); however, the first earbud (202) and/or the second earbud (204) may be included in any electronic device that can operate as a pair, not just the first external electronic device (200). According to one embodiment, the first earbud (202) and the second earbud (204) may be implemented to include identical or similar configurations.
  • the electronic device (101) and the first earbud (202) and/or the second earbud (204) may establish a connection (e.g., a communication link) with each other, and may transmit and/or receive data (e.g., audio data) with each other through the established connection.
  • a connection e.g., a communication link
  • the electronic device (101) and the first earbud (202) and/or the second earbud (204) may establish a communication link based on at least one of a Wi-Fi method and a Bluetooth method, but this does not mean that the method by which the electronic device (101) and the first earbud (202) and the second earbud (204) establish a communication link is limited to at least one of a Wi-Fi method and a Bluetooth method.
  • the communication link established between the electronic device (101) and the first earbud (202) and the second earbud (204) may be a connected isochronous stream (CIS) or a broadcast isochronous stream (BIS).
  • the electronic device (101) may establish a communication link with only one of the first earbud (202) and the second earbud (204), or may establish a communication link with each of the first earbud (202) and the second earbud (204).
  • the first earbud (202) and/or the second earbud (204) can establish a communication link based on at least one of a Wi-Fi method and a Bluetooth method, but the method by which the first earbud (202) and the second earbud (204) establish a communication link is not limited to at least one of a Wi-Fi method and a Bluetooth method.
  • the method of establishing a communication link between the first earbud (202) and the second earbud (204) is a Bluetooth method
  • the communication link can be CIS.
  • either the first earbud (202) and/or the second earbud (204) can operate as a central device (or, master device, primary device, or main device) and the other can operate as a peripheral device (or, slave device, secondary device, or sub device).
  • the electronic device operating as the central device can transmit data to the electronic device operating as the peripheral device.
  • either the first earbud (202) or the second earbud (204) can be selected as the central device and the other can be selected as the peripheral device.
  • FIG. 2 a case where a connection is established between an electronic device (101) and a first external electronic device (200) (e.g., a first earbud (202) and/or a second earbud (204)) is described as an example, but the electronic device (101) may establish a connection not only with the first external electronic device (200) but also with another external electronic device (e.g., a second external electronic device (not shown in FIG. 2)) (e.g., the electronic device (104) of FIG. 1 or a server (e.g., the server (108) of FIG. 1).
  • the electronic device (101), the first external electronic device (200), and/or the second external electronic device may be electronic devices participating in a multi-party audio service.
  • the server may be connected to the electronic device (101), the first external electronic device (200), and other external electronic devices, and the electronic device (101), the first external electronic device (200), and other external electronic devices may be connected to the server. It can perform management and control operations on devices.
  • the first earbud (202) and/or the second earbud (204) may communicate directly or indirectly with an ear buds case device (206).
  • the ear buds case device (206) may be a device that stores and charges the first earbud (202) and/or the second earbud (204).
  • the ear buds case device (206) may include at least one processor (or at least one communication chip), at least one communication circuit, and/or a display.
  • the ear buds case device (206) may include additional components in addition to the at least one processor (or at least one communication chip), at least one communication circuit, and/or the display.
  • the ear buds case device (206) may perform an action associated with a common audio channel (e.g., an action of generating a common audio channel) based on a user input via the display.
  • the first external electronic device (200) can generate a common audio channel and share information about the generated common audio channel and information used for synchronization to the common audio channel with the electronic device (101) or other external electronic devices.
  • the earbud case device (206) can also generate a common audio channel and share information about the generated common audio channel and information used for synchronization to the common audio channel with the electronic device (101), the first external electronic device (200), or other external electronic devices.
  • FIG. 3 is a block diagram schematically illustrating a second external electronic device in a wireless communication network according to one embodiment.
  • the second external electronic device (300) may be a device implementing a Bluetooth scheme (e.g., a Bluetooth legacy scheme and/or a BLE scheme).
  • the second external electronic device (300) may include a communication circuit (302) (e.g., the communication module (190) of FIG. 1) that transmits and receives signals using one or more antennas (301) with another electronic device (e.g., the electronic device (101) of FIG. 1 or FIG. 2, or the electronic device (102) of FIG. 1 or FIG. 2), for example, a peer device.
  • the other electronic device may include at least one of the first earbud (202) or the second earbud (204).
  • the second external electronic device (300) may include a processor (304) (e.g., processor (120) of FIG. 1) that may be implemented as one or more single-core processors or one or more multi-core processors, and a memory (306) (e.g., memory (130) of FIG. 1) that stores instructions for the operation of the second external electronic device (300).
  • a processor e.g., processor (120) of FIG. 1
  • a memory e.g., memory (130) of FIG. 1
  • the second external electronic device (300) may include an interface module (308) (e.g., interface (177) of FIG. 1).
  • the interface module (308) may provide a wired and/or wireless interface for communicating with components outside the network.
  • at least some of one or more antennas (301), communication circuitry (302), or interface module (308) may be implemented as at least a portion of the communication module (190) and antenna module (197) of FIG. 1.
  • the second external electronic device (300) may include a plurality of communication circuits.
  • One of the plurality of communication circuits may be a communication circuit based on a Wi-Fi method, and another of the plurality of communication circuits may be a communication circuit based on a Bluetooth method, for example, a BLE method.
  • the plurality of communication circuits may include a communication circuit (302), and the communication circuit (302) may be a communication circuit based on a Wi-Fi method or a communication circuit based on a BLE method.
  • the second external electronic device (300) may include one communication circuit capable of supporting both the Wi-Fi method and the BLE method, without separately including a communication circuit based on the Wi-Fi method and a communication circuit based on the BLE method.
  • the one communication circuit capable of supporting both the Wi-Fi method and the BLE method may be the communication circuit (302).
  • FIG. 4 is a block diagram schematically illustrating a first external electronic device in a wireless communication network according to one embodiment.
  • an electronic device (101) may be wirelessly connected to a first external electronic device (200) (e.g., the electronic device (102) of FIG. 1 or the first external electronic device (200)).
  • the first external electronic device (200) may include a first earbud (202) (e.g., a left earbud) and/or a second earbud (204) (e.g., a right earbud).
  • the electronic device (101) may be a smart phone.
  • the first earbud (202) and the second earbud (204) are each implemented as earbuds, but the first earbud (202) and the second earbud (204) may also be implemented as one of various types of devices (e.g., a smart watch, a head-mounted display device, devices for measuring a biosignal (e.g., an electrocardiogram patch)) that may include at least one electrode and sensor device described below.
  • the first earbud (202) and the second earbud (204) may form a pair.
  • the first earbud (202) and the second earbud (204) may be implemented to include identical or substantially similar configurations.
  • the electronic device (101) and the first earbud (202) and the second earbud (204) may establish a connection (e.g., a communication link) with each other, and may transmit and/or receive data with each other through the established connection.
  • a connection e.g., a communication link
  • the electronic device (101) and the first earbud (202) and the second earbud (204) may establish a communication link using at least one of a Wi-Fi method and a Bluetooth method, but this does not mean that the method by which the electronic device (101) and the first earbud (202) and the second earbud (204) establish a communication link is limited to at least one of a Wi-Fi method and a Bluetooth method.
  • the electronic device (101) may establish a communication link with only one of the first earbud (202) and the second earbud (204) (e.g., the central earbud), or may establish communication links with both the first earbud (202) and the second earbud (204).
  • the first earbud (202) and the second earbud (204) can establish a communication link based on at least one of a Wi-Fi method and a Bluetooth method, but the method by which the first earbud (202) and the second earbud (204) establish a communication link is not limited to at least one of a Wi-Fi method and a Bluetooth method.
  • the first earbud (202) may include components identical to or substantially similar to at least one of the components (e.g., modules) of the electronic device (101).
  • the first earbud (202) may include a communication circuit (420) (e.g., the communication module (190) of FIG. 1), an input device (430) (e.g., the input module (150) of FIG. 1), a sensor (440) (e.g., the sensor module (176) of FIG. 1), an audio processing module (450) (e.g., the audio module (170) of FIG. 1), a memory (490) (e.g., the memory (130) of FIG. 1), a power management module (460) (e.g., the power management module (188) of FIG.
  • a battery (470) e.g., the battery (189) of FIG. 1
  • an interface (480) e.g., the interface (177) of FIG. 1
  • a processor (410) e.g., the processor (120) of FIG. 1).
  • the communication circuit (420) may include at least one of a wireless communication module (e.g., a Bluetooth communication module, a cellular communication module, a wireless-fidelity (Wi-Fi) communication module, a near field communication (NFC) communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module, or a power line communication (PLC) communication module).
  • a wireless communication module e.g., a Bluetooth communication module, a cellular communication module, a wireless-fidelity (Wi-Fi) communication module, a near field communication (NFC) communication module, or a global navigation satellite system (GNSS) communication module
  • a wired communication module e.g., a local area network (LAN) communication module, or a power line communication (PLC) communication module.
  • a wireless communication module e.g., a Bluetooth communication module, a cellular communication module, a wireless-fidelity (Wi-Fi) communication
  • the communication circuit (420) can communicate directly or indirectly with at least one of the electronic device (101), the earbud case device (206), or the second earbud (204) through a first network (e.g., the first network (198) of FIG. 1) using at least one communication module included therein.
  • the second earbud (204) can be configured as a pair with the first earbud (202).
  • the communication circuit (420) can operate independently of the processor (410) and can include one or more communication processors that support wired or wireless communication.
  • the communication circuit (420) may be connected to one or more antennas capable of transmitting or receiving a signal or information to or from another electronic device (e.g., the electronic device (101), the second earbud (204), the earbud case device (206), and/or a second external electronic device (e.g., the electronic device (104) of FIG. 1 or the second external electronic device (300) of FIG. 3).
  • at least one antenna suitable for a communication method used in a communication network such as a first network (e.g., the first network (198) of FIG. 1) or a second network (e.g., the second network (199) of FIG. 2), may be selected by the communication circuit (420) from the multiple antennas.
  • the signal or information may be transmitted or received between the communication circuit (420) and the other electronic device via the selected at least one antenna.
  • the input device (430) may be configured to generate various input signals that may be used to operate the first earbud (202).
  • the input device (430) may include at least one of a touch pad, a touch panel, or a button.
  • the input device (430) can generate a user input related to turning the first earbud (202) on or off. In one embodiment, the input device (430) can receive a user input for establishing a communication link between the first earbud (202) and the second earbud (204). In one embodiment, the input device (430) can receive a user input related to audio data (or audio content). For example, the user input can relate to a function of starting playback, pausing playback, stopping playback, controlling playback speed, controlling playback volume, or muting audio data.
  • the sensor (440) can obtain the position or operating state of the first earbud (202).
  • the sensor (440) can convert the obtained signal into an electrical signal.
  • the sensor (440) can include at least one of a magnetic sensor, an acceleration sensor, a gyro sensor, a geomagnetic sensor, a proximity sensor, a gesture sensor, a grip sensor, a biometric sensor, and/or an optical sensor.
  • the processor (410) may obtain data (e.g., audio data) from a packet (e.g., audio packet) received from the electronic device (101), process the obtained data through the audio processing module (450), and output the processed data through the speaker (454).
  • the audio processing module (450) may support an audio data collection function and may play the collected audio data.
  • the audio processing module (450) may include an audio decoder (not shown) and a D/A converter (not shown).
  • the audio decoder may convert audio data stored in the memory (490) or received from the electronic device (101) through the communication circuit (420) into a digital audio signal.
  • the D/A converter may convert the digital audio signal converted by the audio decoder into an analog audio signal.
  • the audio decoder may convert audio data received from the electronic device (101) through the communication circuit (420) and stored in the memory (490) into a digital audio signal.
  • the speaker (454) may output the analog audio signal converted by the D/A converter.
  • the audio processing module (450) may include an A/D converter (not shown).
  • the A/D converter may convert an analog voice signal transmitted through a microphone (452) into a digital voice signal.
  • the microphone (452) may include at least one air conduction microphone and/or at least one bone conduction microphone for acquiring voice and/or sound.
  • the audio processing module (450) can reproduce various audio data set in the operating operation of the first earbud (202).
  • the processor (410) can identify whether the first earbud (202) is coupled to or separated from the user's ear through the sensor (440), and can be designed to reproduce audio data related to sound effects or guidance sounds through the audio processing module (450). The output of the sound effects or guidance sounds can be omitted depending on the user setting or the designer's intention.
  • the memory (490) can store various data used by at least one component of the first earbud (202), such as the processor (410) or the sensor (440).
  • the data can include input data or output data for software and instructions related thereto.
  • the memory (490) can include volatile memory or nonvolatile memory.
  • the power management module (460) can manage power supplied to the first earbud (202).
  • the power management module (460) can be implemented as at least a part of a power management integrated circuit (PMIC).
  • the power management module (460) can include a battery charging module.
  • the power management module (460) when another electronic device (e.g., one of the electronic device (101), the second earbud (204), the earbud case device (206), and/or the second external electronic device) is electrically connected (wirelessly or wired) to the first earbud (202), the power management module (460) can receive power from the other electronic device to charge the battery (470).
  • the battery (470) can power at least one component of the first earbud (202). In one embodiment, the battery (470) can comprise a rechargeable battery. In one embodiment, when the first earbud (202) is mounted within the earbud case device (206), the first earbud (202) can charge the battery (470) to a designated charge level and then turn on power to the first earbud (202) or turn on at least a portion of the communication circuitry (420).
  • the interface (480) can support one or more designated protocols that can be used to directly (e.g., via a wire) connect the first earbud (202) to the electronic device (101), the earbud case device (206), the second earbud (204), the second external electronic device, or another electronic device.
  • the interface (480) can include at least one of a high definition multimedia interface (HDMI), a USB interface, an SD card interface, a power line communication (PLC) interface, or an audio interface.
  • the interface (480) can include at least one connection port for forming a physical connection with the earbud case device (206).
  • the processor (410) may execute software to control at least one other component (e.g., a hardware or software component) of the first earbud (202) coupled to the processor (410) and perform various data processing or calculations.
  • the processor (410) may load instructions or data received from another component (e.g., a sensor (440) or a communication circuit (420)) into the volatile memory (490), process the instructions or data stored in the volatile memory (490), and store resulting data in the non-volatile memory.
  • the processor (410) may establish a communication link with the electronic device (101) through the communication circuit (420) and receive data (e.g., audio data) from the electronic device (101) through the established communication link. According to one embodiment, the processor (410) may transmit data received from the external electronic device (201) through the communication circuit (420) to the second earbud (204). According to one embodiment, the processor (410) may perform operations of the first earbud (202) to be described below.
  • the first earbud (202) may further include various modules depending on its provision form. Although the modifications are very diverse and cannot be all listed due to the convergence trend of digital devices, components equivalent to the components described above may be additionally included in the first earbud (202). In addition, according to one embodiment, the first earbud (202) may exclude certain components among the components described in FIG. 4 depending on its provision form, or certain components may be replaced with other components.
  • a second earbud (204) configured as a pair with the first earbud (202) may include components similar to or substantially identical to the components included in the first earbud (202) and may perform all or part of the operations of the second earbud (204) described below.
  • FIG. 4 a case in which a connection is established between an electronic device (101) and a first external electronic device (200) (e.g., a first earbud (202) and a second earbud (204)) is described as an example.
  • the electronic device (101) may establish a connection not only with the first external electronic device (200) but also with another external electronic device (e.g., a second external electronic device (not shown in FIG. 4)) (e.g., the electronic device (104) of FIG. 1 or the second external electronic device (300) of FIG. 3).
  • the electronic device (101), the first external electronic device, and/or the second external electronic device may be electronic devices participating in a multi-party audio service.
  • an electronic device (101) may include at least one communication circuit (190), at least one processor (120), and a memory (130) storing instructions.
  • the instructions when executed by the at least one processor, may cause the electronic device to establish a common audio channel, which is an audio service link commonly used by the electronic device and at least one external electronic device (102; 104; 200; 300; 1001; 1003; 1005), based on a set condition.
  • a common audio channel which is an audio service link commonly used by the electronic device and at least one external electronic device (102; 104; 200; 300; 1001; 1003; 1005), based on a set condition.
  • the instructions when executed by the at least one processor, may cause the electronic device to share, via the at least one communication circuit, information about the common audio channel and time information used for synchronization with the common audio channel with the at least one external electronic device (102; 104; 200; 300; 1001; 1003; 1005).
  • the instructions when executed by the at least one processor, may cause the electronic device to operate in a receive mode in which the electronic device can receive audio data from the at least one external electronic device for the common audio channel.
  • the instructions when executed by the at least one processor, may cause the electronic device, while operating in the receiving mode, to determine that there is audio data to be transmitted to the at least one external electronic device.
  • the instructions when executed by the at least one processor, may cause the electronic device to switch from the receiving mode to the transmitting mode based on determining the presence of the audio data.
  • the instructions when executed by the at least one processor, may cause the electronic device to transmit, in the transmit mode, the audio data on the common audio channel via the at least one communication circuit.
  • the instructions when executed by the at least one processor, may cause the electronic device to switch to the receive mode for the common audio channel based on completion of transmission of the audio data.
  • the set condition may include at least one of: a condition of receiving a packet requesting to create the common audio channel from at least one of the at least one external electronic device, a condition of confirming a user input requesting to create the common audio channel, a condition of confirming that the set application is executed, or a condition of confirming that the electronic device enters the set area.
  • the instructions when executed by the at least one processor, may cause the electronic device to broadcast, through the at least one communication circuit, information about the common audio channel and time information used for synchronization to the common audio channel, in a periodic advertising period.
  • the instructions when executed by the at least one processor, may cause the electronic device to transmit, through the at least one communication circuit, information about the common audio channel and time information used for synchronization with respect to the common audio channel over a communication link established between the electronic device and the at least one external electronic device.
  • the instructions when executed by the at least one processor, may cause the electronic device to transmit, via the at least one communication circuit, to a server connected to the electronic device and the at least one external electronic device, information about the common audio channel and time information used for synchronization with respect to the common audio channel.
  • the instructions when executed by the at least one processor, may cause the electronic device to determine at least one of an audio transmission service type, a physical link type, an access address, a channel map, audio transmission service parameters, or audio data transmission/reception timing.
  • the instructions when executed by the at least one processor, may cause the electronic device to generate the common audio channel based on at least one of the determined audio transmission service type, the physical link type, the access address, the channel map, the audio transmission service parameters, or the audio data transmission/reception timing.
  • the audio transmission service type may include at least one of a broadcast isochronous stream (BIS) type or a connected isochronous stream (CIS) type.
  • BIOS broadcast isochronous stream
  • CIS connected isochronous stream
  • the audio transmission service parameters may include BIS attribute information corresponding to the BIS type.
  • the audio transmission service parameters may include CIS attribute information corresponding to the CIS type.
  • an electronic device may include at least one communication circuit (190), at least one processor (120), and a memory (130) storing instructions.
  • the instructions when executed by the at least one processor, may cause the electronic device to receive, through the at least one communication circuit, from at least one external electronic device (101; 104; 300; 1001; 1003; 1005) or a server (108), information about a common audio channel, which is an audio service link commonly used by the electronic device and the at least one external electronic device, and time information used for synchronization with respect to the common audio channel.
  • the instructions when executed by the at least one processor, may cause the electronic device to perform a synchronization operation for the common audio channel based on information about the common audio channel and time information used for synchronization for the common audio channel.
  • the instructions when executed by the at least one processor, may cause the electronic device to operate in a receive mode in which the electronic device can receive audio data from the at least one external electronic device for the common audio channel.
  • the instructions when executed by the at least one processor, may cause the electronic device, while operating in the receiving mode, to receive data from the at least one external electronic device via the at least one communication circuit.
  • the instructions when executed by the at least one processor, may cause the electronic device, while operating in the receiving mode, to determine that there is audio data to be transmitted to the at least one external electronic device.
  • the instructions when executed by the at least one processor, may cause the electronic device to switch from the receiving mode to the transmitting mode based on determining the presence of the audio data.
  • the instructions when executed by the at least one processor, may cause the electronic device to transmit, in the transmit mode, the audio data on the common audio channel via the at least one communication circuit.
  • the instructions when executed by the at least one processor, may cause the electronic device to transmit, through the at least one communication circuit, a packet requesting creation of the common audio channel to one of the at least one external electronic device (101), based on the set condition.
  • the set condition may include at least one of: a condition for confirming a user input requesting to create the common audio channel, a condition for confirming that the set application is running, or a condition for confirming that the electronic device enters a set area.
  • the instructions when executed by the at least one processor, may cause the electronic device to receive, from the at least one external electronic device, through the at least one communication circuit, information about the common audio channel and time information used for synchronization with respect to the common audio channel, during a periodic advertising period.
  • the instructions when executed by the at least one processor, may cause the electronic device to receive, through the at least one communication circuit, information about the common audio channel and time information used for synchronization with respect to the common audio channel in a communication link established between the at least one external electronic device and the electronic device.
  • the instructions when executed by the at least one processor, may cause the electronic device to receive, through the at least one communication circuit, from the at least one external electronic device and a server connected to the electronic device, information about the common audio channel and time information used for synchronization with respect to the common audio channel.
  • the common audio channel may be generated based on at least one of: an audio transmission service type, a physical link type, an access address, a channel map, audio transmission service parameters, or audio data transmission/reception timing.
  • the audio transmission service type may include at least one of a broadcast isochronous stream (BIS) type or a connected isochronous stream (CIS) type.
  • BIOS broadcast isochronous stream
  • CIS connected isochronous stream
  • the audio transmission service parameters may include BIS attribute information corresponding to the BIS type.
  • the audio transmission service parameters may include CIS attribute information corresponding to the CIS type.
  • the Bluetooth mode may include Bluetooth legacy (or Bluetooth classic) mode, and/or Bluetooth low energy (BLE) mode.
  • An electronic device e.g., an electronic device (101) of FIG. 1, FIG. 2, or FIG. 4) (e.g., a smartphone) providing an audio service based on a BLE method can independently establish a communication link (e.g., a connected isochronous stream (CIS)) with each of external electronic devices (e.g., a first external electronic device (e.g., an electronic device (102) of FIG. 1, or a first external electronic device (200) of FIG. 2 or FIG. 4) (e.g., ear buds), and/or a second external electronic device (e.g., an electronic device (104) of FIG.
  • a communication link e.g., a connected isochronous stream (CIS)
  • a first external electronic device e.g., an electronic device (102) of FIG. 1, or a first external electronic device (200) of FIG. 2 or FIG.
  • the electronic device can establish a communication link (e.g., a broadcast isochronous stream (BIS)) and transmit and receive data with the external electronic devices through the established communication link. (e.g., broadcast-based communication).
  • a communication link e.g., a broadcast isochronous stream (BIS)
  • BIS broadcast isochronous stream
  • Audio services based on the BLE method can be provided through either the connection-based CIS or the non-connection-based BIS.
  • all electronic devices participating in the multi-party audio service e.g., the electronic device, the first external electronic device, and/or the second external electronic device
  • a CIS may be an asynchronous connection-oriented (ACL)-based link.
  • ACL asynchronous connection-oriented
  • establishment of a connection between electronic devices A and electronic devices B may mean that a first communication link is established using a first access address.
  • electronic device C participates in the multiparty audio service, a second communication link may need to be established between electronic devices A and electronic devices C using a second access address, and a third communication link may need to be established between electronic devices B and electronic devices C using a third access address.
  • CISs may be generated after all communication links (e.g., the first communication link, the second communication link, and/or the third communication link) are generated between electronic devices participating in the multiparty audio service (e.g., electronic devices A, electronic devices B, and/or electronic devices C).
  • the CISs can be generated using access addresses different from the access addresses used in the first communication link to the third communication link, and the CIS generated corresponding to the first communication link is the first CIS, the CIS generated corresponding to the second communication link is the second CIS, and the CIS generated corresponding to the third communication link is the third CIS.
  • the number of links that need to be established between the electronic devices participating in the CIS-based multiparty audio service may increase exponentially, and this exponential increase in the number of links may not only make it difficult to provide a CIS-based multiparty audio service, but may also make it impossible to provide a CIS-based multiparty audio service.
  • the number of links that need to be established between electronic devices participating in a CIS-based multiparty audio service may increase exponentially, and as the number of links that need to be established increases, not only may the link operating times for operating the links overlap, but also it may be difficult to secure the minimum unit of time required to operate the links, and thus it may be difficult to normally provide a CIS-based multiparty audio service.
  • BIS When a multi-party audio service is provided through BIS, electronic devices participating in the multi-party audio service can operate as BIS source devices and thus transmit audio data.
  • the present disclosure can provide an electronic device for providing audio service and a method of operating the same, which reduces the number of required links.
  • the present disclosure can provide an electronic device for providing audio service and an operating method thereof, which ensures service stability.
  • the audio service provided in the BLE mode may be a next-generation Bluetooth audio service. While the Bluetooth legacy mode uses the Bluetooth basic rate/enhanced data rate (BR/EDR) mode and also uses the advanced audio distribution profile (A2DP) or hands-free profile (HFP), the BLE mode uses the multi-stream audio mode and the broadcast audio mode for audio sharing.
  • B/EDR Bluetooth basic rate/enhanced data rate
  • A2DP advanced audio distribution profile
  • HFP hands-free profile
  • the BLE mode uses the multi-stream audio mode and the broadcast audio mode for audio sharing.
  • independent audio streams can be transmitted to one or more electronic devices.
  • connected isochronous group (CIG) or CIS was introduced.
  • a CIG may be generated by a central device and may contain two or more CISs.
  • a CIG may contain two or more CISs that have the same time interval (e.g., ISO_Interval).
  • CIS is a logical transport that allows connected devices to transfer isochronous data in one direction.
  • CIS is based on point-to-point and bidirectional communication based on acknowledgment (ACK).
  • ACK acknowledgment
  • An isochronous connection can be used to transfer isochronous data between a central device and a peripheral device using a logical transport called CIS.
  • a CIS can contain CIS events that occur at regular intervals (e.g., a specified ISO_Interval).
  • a CIS event can be an opportunity for a central device and a peripheral device to exchange audio packets.
  • Each CIS event may contain one or more subevents.
  • Each subevent may be used by the central device to transmit audio packets and the peripheral devices to respond to the master device.
  • the central device may transmit once and the peripheral devices may respond.
  • all remaining subevents contained in the CIS event will not have any further wireless transmissions, and thus the CIS event may be closed.
  • Each sub-event can use a physical channel determined using a channel selection algorithm.
  • the physical channel used for the sub-event can be marked as ISO Ch(eventcount, subeventcount).
  • the eventcount can represent the count value of the corresponding CIS event
  • the subeventcount can represent the count value of the sub-event in the corresponding CIS event.
  • a CIG event may include CIS events of CISs included in the CIG.
  • Each CIG event starts at the earliest (in terms of transmission order) anchor point of the CIS and ends at the end of the last sub-event of the latest (in terms of transmission order) CIS of the same CIS event.
  • Two CIG events on the same CIS may not overlap.
  • the last CIS event of a given CIG event may end before the first CIS anchor point of the next CIG event.
  • FIG. 5 is a diagram schematically illustrating the configuration of CIG events and CIS events in a wireless communication network according to one embodiment.
  • one CIG event may include two CIS events (e.g., CIS1 event n (501) and CIS2 event n (503)).
  • CIS1 event n (501) may be a CIS event corresponding to CIS1
  • CIS2 event n (503) may be a CIS event corresponding to CIS2.
  • the CISs included in the CIG can be arranged sequentially or interleaved by appropriately adjusting the values of Sub_Interval and the spacing between the CIS anchor points, and FIG. 5 illustrates a case in which CIS1 event n (501) and CIS2 event n (503) included in CIG event n (500) are arranged sequentially.
  • the CIG event n (500) illustrated in FIG. 5 may be a CIG event including CIS1 event n (501) and CIS2 event n (503) of a sequential arrangement.
  • CIS1 event n(501) and CIS2 event n(503) are arranged sequentially, CIS events of other CISs do not overlap, and therefore, subevents of CIS events may not overlap either.
  • CIS1 event n(501) and CIS2 event n(503) are arranged sequentially, CIS1 event n(501) and CIS2 event n(503) do not overlap, and therefore, subevents included in CIS1 event n(501) (e.g., subevent 1(511), subevent 2(512), subevent 3(513), subevent 4(514)) and subevents included in CIS2 event n(503) (e.g., subevent 1(541), subevent 2(542), subevent 3(543), subevent 4(544)) may not overlap.
  • CIS1 event n (501) and CIS2 event n (503) are arranged sequentially, CIS events of other CISs do not overlap, and therefore, sub-events of CIS events may not overlap either.
  • sub-events of multiple CIS events may overlap.
  • at least one of the sub-events included in CIS1 event n (501) may overlap with at least one of the sub-events included in CIS2 event n (503).
  • sub-events subevent 1 (511), subevent 2 (512), subevent 3 (513), subevent 4 (514), subevent 1 (541), subevent 2 (542)
  • two of the six sub-events overlap overlap.
  • CIS1 event n(501) contains subevent 1(511), subevent 2(512), subevent 3(513), and subevent 4(514)
  • CIS2 event n(503) contains subevent 3(513), subevent 4(514), subevent 1(541), and subevent 2(542).
  • subevent 1(511), subevent 2(512) are used in CIS1 event n(501), subevent 3(513), subevent 4(514), subevent 1(541), subevent 2(542) can be used in CIS2 event n(503), and conversely, if subevent 1(511), subevent 2(512), subevent 3(513), subevent 4(514) are used in CIS1 event n(501), subevent 1(541), subevent 2(542) can be used in CIS2 event n(503).
  • the interval between the CIS anchor points of the CISs may be at least NSE (number of subevents) ⁇ Sub_Interval.
  • NSE represents the number of subevents and may represent the maximum number of subevents included in each CIS event.
  • C may represent a central device
  • P1 may represent a first peripheral device
  • P2 may represent a second peripheral device.
  • the central device may transmit a connection-isochronous protocol data unit (PDU) (521), in subevent 2 (512), the central device may transmit a connection-isochronous PDU (522), in subevent 3 (513), the central device may transmit a connection-isochronous PDU (523), and in subevent 4 (514), the central device may transmit a connection-isochronous PDU (524).
  • PDU connection-isochronous protocol data unit
  • the central device may transmit a connection-isochronous PDU (522)
  • the connection-isochronous PDU (523), and the connection-isochronous PDU (524) may be a connection-isochronous PDU transmitted from the central device to a peripheral device.
  • the first peripheral device may transmit a connection isochronous PDU (531), in subevent 2 (512), the first peripheral device may transmit a connection isochronous PDU (532), in subevent 3 (513), the first peripheral device may transmit a connection isochronous PDU (533), and in subevent 4 (514), the first peripheral device may transmit a connection isochronous PDU (534).
  • Each of the connection isochronous PDU (531), the connection isochronous PDU (532), the connection isochronous PDU (533), and the connection isochronous PDU (534) may be a connection isochronous PDU transmitted from the first peripheral device to the central device.
  • T_IFS represents time inter frame space and may indicate a time interval between consecutive packets on the same channel index.
  • T_MSS represents the minimum subevent space, which can be, for example, 150 ⁇ s.
  • the central device can transmit a connection-isochronous PDU (551), in subevent 2 (542), the central device can transmit a connection-isochronous PDU (552), in subevent 3 (543), the central device can transmit a connection-isochronous PDU (553), and in subevent 4 (544), the central device can transmit a connection-isochronous PDU (554).
  • Each of the connection-isochronous PDU (551), the connection-isochronous PDU (552), the connection-isochronous PDU (553), and the connection-isochronous PDU (554) can be a connection-isochronous PDU transmitted from the central device to a peripheral device.
  • a second peripheral device may transmit a connection-isochronous PDU (561), in subevent 2 (542), a second peripheral device may transmit a connection-isochronous PDU (562), in subevent 3 (543), a second peripheral device may transmit a connection-isochronous PDU (563), and in subevent 4 (544), a second peripheral device may transmit a connection-isochronous PDU (564).
  • Each of the connection-isochronous PDU (561), the connection-isochronous PDU (562), the connection-isochronous PDU (563), and the connection-isochronous PDU (564) may be a connection-isochronous PDU transmitted from the second peripheral device to the central device.
  • one or more audio packets can be provided to an infinite number of audio sink devices.
  • a broadcast isochronous group (BIG) and a broadcast isochronous stream (BIS) have been proposed.
  • BIG broadcast isochronous group
  • BIOS broadcast isochronous stream
  • an isochronous broadcaster and a synchronized receiver may be required.
  • a BIS may be a logical transport used to convey one or more isochronous data streams to all devices for the BIS within a range.
  • a BIS may include one or more sub-events for transmitting isochronous data packets.
  • a sub-event may include time durations during which at least one synchronized receiver may receive a broadcast isochronous PDU.
  • a BIS may support transmitting a number of new isochronous data packets at each BIS event. There is no acknowledgement protocol for the BIS, and thus traffic is unidirectional from a broadcasting device.
  • a BIG can be generated by an isochronous broadcaster.
  • a BIG can contain one or more BISs.
  • the multiple BISs included in a BIG can have a common timing reference based on the broadcaster and can be synchronized in the time domain. For example, the left channel and the right channel of an audio stereo stream received by individual devices need to be rendered simultaneously.
  • the multiple BISs included in a BIG can be scheduled sequentially or in an interleaved arrangement.
  • FIG. 6 is a diagram schematically illustrating the configuration of BIG events and BIS events in a wireless communication network according to one embodiment.
  • each of the BIG events may include two BIS events.
  • BIG event x(601) may include BIS1 event x(611) and BIS2 event x(613)
  • BIG event x+1(603) may include BIS1 event x+1(621) and BIS2 event x+1(623)
  • BIG event x+2(605) may include BIS1 event x+2(631) and BIS2 event x+2(633).
  • a BIG event may contain one or more BIS PDUs.
  • the link layer may transmit only BIS PDUs in BIG events.
  • the link layer may transmit only BIS PDUs as part of a BIG event.
  • Each BIG event may be split into Num_BIS BIS events and control sub-events (if any).
  • Each BIS event may be split into NSE sub-events.
  • Each BIS event starts at a moment referred to as the BIS anchor point and ends after the last sub-event of each BIS event.
  • Each BIG event starts at a moment referred to as the BIG anchor point and ends after the control sub-event, if any, otherwise ends at the end of the last constituent BIS event.
  • BIS anchor points for a BIS n of a BIG can be (n - 1) ⁇ BIS_Spacing after the BIG anchor points, and thus can be regularly spaced at ISO_Interval intervals.
  • BIS_Spacing is the time between the starts of sub-events contained in adjacent BISs contained in the BIG, and can also be the time between the start of the first sub-event of the last BIS and the start of the control sub-event, if any.
  • the sub-events of each BIS can be spaced at Sub_Interval intervals.
  • An isochronous broadcaster shall close each BIG event at least T_IFS before the BIG anchor point of the next BIG event.
  • broadcast isochronous PDU(641), broadcast isochronous PDU(643), and broadcast isochronous PDU(645) can be transmitted.
  • broadcast isochronous PDU(651), broadcast isochronous PDU(653), and broadcast isochronous PDU(655) can be transmitted.
  • broadcast isochronous PDU (661), broadcast isochronous PDU (663), and broadcast isochronous PDU (665) can be transmitted.
  • broadcast isochronous PDU (671), broadcast isochronous PDU (673), and broadcast isochronous PDU (675) can be transmitted.
  • broadcast isochronous PDU (681), broadcast isochronous PDU (683), and broadcast isochronous PDU (685) can be transmitted.
  • broadcast isochronous PDU (691), broadcast isochronous PDU (693), and broadcast isochronous PDU (695) can be transmitted.
  • FIG. 7 is a flowchart schematically illustrating an operating method of an electronic device according to one embodiment.
  • an electronic device e.g., the electronic device (101) of FIG. 1, FIG. 2, or FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23
  • the processor (120) of FIG. 1 may, in operation 711, establish a common audio channel based on a set condition.
  • the common audio channel may be a low energy audio service (LE audio service) link that can be commonly used by a plurality of electronic devices (e.g., the electronic device and at least one external electronic device).
  • the LE audio service may be an audio service based on a BLE scheme.
  • the common audio channel may be a channel that can be used for a multi-party audio service based on a BLE scheme.
  • a common audio channel can be commonly used by the electronic device and at least one external electronic device.
  • the common audio channel can be provided via a connection-based CIS or a non-connection-based BIS.
  • the set condition is: at least one external electronic device (e.g., a first external electronic device (e.g., the electronic device (102) of FIG. 1 , or the first external electronic device (200) of FIG. 2 , FIG. 4 , FIG. 10 , FIG. 11 , FIG. 16 , FIG. 17 , FIG. 19 , FIG. 20 , or FIG. 21 ), a second external electronic device (e.g., the electronic device (104) of FIG. 1 , or the second external electronic device (300) of FIG. 3 , FIG. 4 , FIG. 16 , or FIG. 17 ), a third external electronic device (e.g., the third external electronic device (1001) of FIG. 10 , FIG. 16 , FIG.
  • a first external electronic device e.g., the electronic device (102) of FIG. 1 , or the first external electronic device (200) of FIG. 2 , FIG. 4 , FIG. 10 , FIG. 11 , FIG. 16 , FIG. 17 , FIG. 19 , FIG
  • the electronic device (1005) may include at least one of a condition for receiving a packet requesting to create the common audio channel (e.g., a common audio channel creation request packet) from at least one of the devices (1005)), a condition for confirming a user input requesting to create the common audio channel, a condition for confirming that a set application is executed, or a condition for confirming that the electronic device enters the set area. Since the set conditions will be described below with reference to FIG.
  • the electronic device may determine at least one of an audio transmission service type, a physical link type, an access address, a channel map, audio transmission service parameters, or audio data transmission/reception timing, and generate a common audio channel based on at least one of the determined audio transmission service type, the physical link type, the access address, the channel map, the audio transmission service parameters, or the audio data transmission/reception timing. Since the audio transmission service type, physical link type, access address, channel map, audio transmission service parameters, or audio data transmission/reception timing will be described with reference to FIG. 11 below, a detailed description thereof will be omitted here.
  • An electronic device that has established a common audio channel based on a set condition may, in operation 713, share information about the common audio channel and time information used for synchronization for the common audio channel with at least one external electronic device through at least one communication circuit (e.g., the communication module (190) of FIG. 1).
  • the at least one external electronic device may receive BIS audio data.
  • the time information used for synchronization for the common audio channel may include link information including a BIS audio data transmission order and/or information about a timing at which BIS audio data transmission starts.
  • the electronic device can share information about a common audio channel and time information used for synchronization with the common audio channel with at least one external electronic device by broadcasting information about a common audio channel and time information used for synchronization with the common audio channel through at least one communication circuit during a periodic advertising period. In one embodiment, the electronic device can share information about a common audio channel and time information used for synchronization with the common audio channel with at least one external electronic device by transmitting information about a common audio channel and time information used for synchronization with the common audio channel through at least one communication circuit in a communication link established between the electronic device and the at least one external electronic device.
  • the electronic device can share information about a common audio channel and time information used for synchronization with the common audio channel with at least one external electronic device by transmitting information about the common audio channel and time information used for synchronization with the common audio channel to a server connected to the electronic device and the at least one external electronic device through at least one communication circuit. Since the operation of an electronic device sharing information about a common audio channel and time information used for synchronization with at least one external electronic device will be described below with reference to FIG. 11, a detailed description thereof will be omitted here.
  • the electronic device may share information about a common audio channel that is not generated directly by the electronic device and time information used for synchronization to the common audio channel (e.g., information about a common audio channel that is generated by a server and time information used for synchronization to the common audio channel).
  • information about a common audio channel that is not generated directly by the electronic device and time information used for synchronization to the common audio channel e.g., information about a common audio channel that is generated by a server and time information used for synchronization to the common audio channel.
  • the earbud case can share information about a common audio channel obtained from the electronic device connected to the earbud case and time information used for synchronization to the common audio channel.
  • An electronic device that shares information about a common audio channel with at least one external electronic device and time information used for synchronization with the common audio channel can operate in a receiving mode in which the electronic device can receive audio data from at least one external electronic device for the established common audio channel, in operation 715.
  • the receiving mode and transmitting mode may be described as follows.
  • a time interval for transmitting data e.g., audio data
  • a time interval for receiving data e.g., audio data
  • one subevent may include a time interval from a central device to a peripheral device (C->P) + T_IFS (time inter frame spacing) + a time interval from a peripheral device to a central device (P->C) + T_MSS.
  • T_MSS may represent a minimum subevent space.
  • one subevent may include a transmission time interval during which audio data is transmitted from a BIS source device (e.g., a device performing the BIS source role) + T_MSS.
  • electronic devices participating in a common audio channel are free to operate in either the transmit mode or the receive mode for respective time intervals depending on the states of the electronic devices, without a fixed time interval for transmission or reception.
  • the transmission mode may be a mode in which an electronic device participating in a common audio channel confirms that there is data (e.g., audio data) to be transmitted to external electronic devices (e.g., external electronic devices surrounding the electronic device) and transmits the confirmed data to the external electronic devices surrounding the electronic device.
  • data e.g., audio data
  • the receiving mode may be a mode for receiving data (e.g., audio data) transmitted from external electronic devices around the electronic device, when there is no data to be transmitted by the electronic device participating in the common audio channel to external electronic devices (e.g., external electronic devices around the electronic device).
  • data e.g., audio data
  • the receiving mode may be a mode in which the electronic device can receive actual audio data from at least one external electronic device, or monitor whether audio data is being received from at least one external electronic device, or is in a sleep state.
  • the electronic device may operate in a receive mode by default after establishing a common audio channel. In one embodiment, the electronic device may operate in a receive mode for the common audio channel after establishing the common audio channel.
  • the electronic device can determine that there is audio data to be transmitted while operating in a receive mode for a common audio channel.
  • the electronic device When an electronic device, while operating in a receiving mode for a common audio channel, determines that there is audio data to be transmitted, the electronic device may switch from the receiving mode to the transmitting mode.
  • the transmitting mode may be a mode in which the electronic device participating in the common audio channel determines that there is data (e.g., audio data) to be transmitted to external electronic devices (e.g., external electronic devices surrounding the electronic device) and transmits the determined data to the external electronic devices surrounding the electronic device.
  • the transmitting mode may be a mode in which the electronic device can transmit audio data. The electronic device may transmit audio data on the common audio channel through at least one communication circuit in the transmitting mode.
  • the electronic device and the earbuds may transmit audio data for the same utterance simultaneously. In one embodiment, when the electronic device generates a common audio channel and the electronic device is connected to the earbuds, the electronic device may not transmit audio data for the same utterance, but may transmit only the earbuds to the audio data.
  • an electronic device that has transmitted audio data in a transmission mode may switch back to a reception mode for a common audio channel based on completion of transmission of the audio data.
  • FIG. 8 is a flowchart schematically illustrating an operating method of a first external electronic device according to one embodiment.
  • an operating method of a first external electronic device (e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21) (e.g., the processor (120) of FIG. 1) illustrated in FIG. 8 may be an operating method in which the first external electronic device obtains information about a common audio channel and time information used for synchronization about the common audio channel from the electronic device (e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23) without transmitting a packet requesting creation of a common audio channel (e.g., a common audio channel creation request packet).
  • a packet requesting creation of a common audio channel e.g., a common audio channel creation request packet.
  • the first external electronic device may receive information about a common audio channel and time information used for synchronization for the common audio channel from the electronic device through at least one communication circuit (e.g., the communication module (190) of FIG. 1). In one embodiment, the first external electronic device may receive information about a common audio channel and time information used for synchronization for the common audio channel from the electronic device through at least one communication circuit in a periodic advertising period. In one embodiment, the first external electronic device may receive information about a common audio channel and time information used for synchronization for the common audio channel through at least one communication circuit in a communication link established between the electronic device and the first external electronic device.
  • the communication circuit e.g., the communication module (190) of FIG. 1
  • the first external electronic device may receive information about a common audio channel and time information used for synchronization for the common audio channel from the electronic device through at least one communication circuit in a periodic advertising period.
  • the first external electronic device may receive information about a common audio channel and time information used for synchronization for the common audio channel through at
  • the electronic device may receive information about a common audio channel and time information used for synchronization for the common audio channel from a server to which the electronic device and the first external electronic device are connected through at least one communication circuit. Since the operation of sharing information about a common audio channel with the electronic device and time information used for synchronization for the common audio channel will be described with reference to FIG. 11 below, a detailed description thereof will be omitted here.
  • operation 811 a case where a common audio channel is created based on BIS is described as an example, but a common audio channel may be created based on CIS.
  • both BIS and CIS may be the same in that a time interval for transmission is set, BIS has one transmission occasion in a subevent, while CIS may have a total of two transmission occasions including a transmission occasion from a central device to a peripheral device (C->P) and a transmission occasion from a peripheral device to a central device (P->C) in a subevent.
  • audio data may be transmitted in the time interval set in the subevent.
  • CIS it can be determined which of the two transmission opportunities existing in the subevent will be applied to the common audio channel, and the transmission opportunity thus determined can be applied to the common audio channel.
  • a first external electronic device receives information on a common audio channel and time information used for synchronization for the common audio channel from an electronic device.
  • the first external electronic device may receive information on a common audio channel and time information used for synchronization for the common audio channel from at least one other external electronic device (e.g., a second external electronic device (e.g., an electronic device (104) of FIG. 1, or a second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG. 17), a third external electronic device (e.g., a third external electronic device (1001) of FIG. 10, FIG. 16, FIG. 17, or FIG.
  • a second external electronic device e.g., an electronic device (104) of FIG. 1, or a second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG. 17
  • a third external electronic device e.g., a third external electronic device (1001) of FIG. 10, FIG. 16, FIG. 17, or FIG.
  • Time information used for synchronization for the channel may also be received.
  • the first external electronic device which has received information about the common audio channel and time information used for synchronization for the common audio channel from the electronic device, may, in operation 813, synchronize to the common audio channel based on the received information about the common audio channel and time information used for synchronization for the common audio channel (for example, may perform a synchronization operation for the common audio channel).
  • the electronic devices that can commonly use the common audio channel may be electronic devices that have been authenticated as electronic devices that can participate in the common audio channel through a prior authentication procedure.
  • the electronic devices that can commonly use the common audio channel may be electronic devices that satisfy a set condition.
  • the set condition may include a condition of being authenticated with set authentication information, a condition of using the same user account, and/or a condition of entering the same QR code, and the set condition may be implemented in various forms in consideration of a security level for the common audio channel, and there may be no limitation on the set condition.
  • there may be no separate limitation on the electronic devices that can commonly use the common audio channel for example, any electronic device may use the common audio channel as long as it can perform a synchronization operation for the common audio channel based on information about the common audio channel and time information used for synchronization for the common audio channel.
  • the first external electronic device may operate in a reception mode in which the first external electronic device can receive audio data from the electronic device or at least one other electronic device for the common audio channel, in operation 815. Since the transmission mode and the reception mode have been described with reference to FIG. 7, a detailed description thereof may be omitted here.
  • the first external electronic device may, in the reception mode, receive actual audio data from the electronic device or at least one other external electronic device, or may monitor whether audio data is received from the electronic device or at least one other external electronic device, or may exist in a sleep state.
  • the first external electronic device may operate in the reception mode by default after synchronizing to the common audio channel.
  • the first external electronic device may operate in the reception mode for the common audio channel after performing the synchronization operation for the common audio channel.
  • the first external electronic device can determine that there is audio data to be transmitted while operating in a receive mode for the common audio channel.
  • a first external electronic device While operating in a receiving mode for a common audio channel, a first external electronic device that determines that there is audio data to be transmitted can switch from the receiving mode to the transmitting mode.
  • the transmitting mode can be a mode in which the first external electronic device can transmit audio data.
  • the first external electronic device can transmit audio data on the common audio channel through at least one communication circuit in the transmitting mode.
  • the first external electronic device that transmitted audio data in the transmission mode may switch back to the reception mode for the common audio channel based on the completion of the transmission of the audio data.
  • audio data may be received from at least one of the electronic device or at least one other external electronic device on the common audio channel via at least one communication circuit.
  • the operation of the first external electronic device receiving audio data from at least one of the electronic device or at least one other external electronic device may be performed before the operation of the first external electronic device transmitting the audio data to at least one of the electronic device or at least one other external electronic device.
  • the operation of the first external electronic device transmitting the audio data to at least one of the electronic device or at least one other external electronic device may be performed before the operation of the first external electronic device receiving audio data from at least one of the electronic device or at least one other external electronic device.
  • FIG. 9 is a flowchart schematically illustrating an operating method of a first external electronic device according to one embodiment.
  • an operating method of a first external electronic device (e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21) (e.g., the processor (120) of FIG. 1) illustrated in FIG. 9 may be an operating method in which the first external electronic device transmits a packet (e.g., a common audio channel creation request packet) requesting creation of a common audio channel to an electronic device (e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23), and acquires information about the common audio channel and time information used for synchronization about the common audio channel from the electronic device.
  • a packet e.g., a common audio channel creation request packet
  • an electronic device e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 11,
  • a first external electronic device may transmit a packet (e.g., a common audio channel creation request packet) requesting the electronic device to create a common audio channel through at least one communication circuit (e.g., a communication module (190) of FIG. 1).
  • FIG. 9 illustrates an example in which a first external electronic device transmits a packet requesting the electronic device to create a common audio channel
  • the first external electronic device may transmit a packet requesting the creation of a common audio channel to at least one other external electronic device (e.g., a second external electronic device (e.g., the electronic device (104) of FIG. 1 , or the second external electronic device (300) of FIG. 3 , FIG. 4 , FIG. 16 , or FIG.
  • a second external electronic device e.g., the electronic device (104) of FIG. 1 , or the second external electronic device (300) of FIG. 3 , FIG. 4 , FIG. 16 , or FIG.
  • the operation between the first external electronic device and at least one of the at least one other external electronic device may be similar to or substantially identical to the operation between the first external electronic device and the electronic device described in FIG. 9.
  • a connection (e.g., a communication link) may be established between the first external electronic device and the electronic device.
  • the first external electronic device may transmit a packet requesting the electronic device to create a common audio channel based on a set condition.
  • the set condition may include at least one of a condition for confirming a user input requesting to create a common audio channel, a condition for confirming that a set application is executed, or a condition for confirming that the first external electronic device enters a set area.
  • the set condition will be described in detail with reference to FIG. 11 below, and therefore, a detailed description thereof will be omitted herein.
  • a case is described as an example in which a first external electronic device transmits a packet requesting the electronic device to create a common audio channel.
  • the electronic device is an earbud case
  • the earbud case can create a common audio channel if a set operation (or user input) (for example, an operation of opening the earbud case and touching the left earbud and the light earbud a set number of times (for example, three times)) is confirmed even if the earbud case does not receive a packet requesting the creation of a common audio channel from the first external electronic device (for example, the left earbud and the light earbud).
  • the earbud case can share information about the created common audio channel and time information used for synchronization about the common audio channel to the left earbud and the light earbud through a PA operation (for example, PLC or wirelessly).
  • a PA operation for example, PLC or wirelessly
  • a first external electronic device that transmits a packet requesting to create a common audio channel to an electronic device may, in operation 913, receive, from the electronic device, information about the common audio channel and time information used for synchronization for the common audio channel, via at least one communication circuit.
  • the first external electronic device may receive, from the electronic device, information about the common audio channel and time information used for synchronization for the common audio channel, via at least one communication circuit, in a periodic advertising period.
  • the first external electronic device may receive, from the electronic device and the first external electronic device, information about the common audio channel and time information used for synchronization for the common audio channel, via at least one communication circuit, in a communication link established between the electronic device and the first external electronic device.
  • the first external electronic device may receive, from a server to which the electronic device and the first external electronic device are connected, information about the common audio channel and time information used for synchronization for the common audio channel, via at least one communication circuit.
  • a server to which the electronic device and the first external electronic device are connected
  • information about the common audio channel and time information used for synchronization for the common audio channel via at least one communication circuit.
  • a first external electronic device which has received information about a common audio channel and time information used for synchronization to the common audio channel from an electronic device, can, in operation 915, synchronize to the common audio channel based on the received information about the common audio channel and time information used for synchronization to the common audio channel.
  • the first external electronic device synchronized to the common audio channel can operate in a reception mode in which the first external electronic device can receive audio data from the electronic device or at least one other electronic device for the common audio channel, in operation 917. Since the transmission mode and the reception mode have been described with reference to FIG. 7, a detailed description thereof may be omitted here.
  • the first external electronic device can receive actual audio data from the electronic device or at least one other external electronic device in the reception mode, monitor whether audio data is received from the electronic device or at least one other external electronic device, or exist in a sleep state.
  • the first external electronic device can operate in the reception mode by default after synchronizing to the common audio channel.
  • the first external electronic device can operate in the reception mode for the common audio channel after performing a synchronization operation for the common audio channel.
  • the first external electronic device can determine that there is audio data to be transmitted while operating in a receiving mode for the common audio channel.
  • the first external electronic device When the first external electronic device determines that audio data to be transmitted exists while operating in the receiving mode for a common audio channel, the first external electronic device can switch from the receiving mode to the transmitting mode.
  • the transmitting mode can be a mode in which the first external electronic device can transmit audio data.
  • the first external electronic device can transmit audio data on the common audio channel through at least one communication circuit in the transmitting mode.
  • the first external electronic device that transmitted audio data in the transmission mode may switch back to the reception mode for the common audio channel based on the completion of transmission of the audio data.
  • audio data may be received from at least one of the electronic device or at least one other external electronic device on the common audio channel via at least one communication circuit.
  • the operation of the first external electronic device receiving audio data from at least one of the electronic device or at least one other external electronic device may be performed before the operation of the first external electronic device transmitting the audio data to at least one of the electronic device or at least one other external electronic device.
  • the operation of the first external electronic device transmitting the audio data to at least one of the electronic device or at least one other external electronic device may be performed before the operation of the first external electronic device receiving audio data from at least one of the electronic device or at least one other external electronic device.
  • FIG. 10 is a diagram schematically illustrating connections between electronic devices based on the Bluetooth method in a wireless communication network according to one embodiment.
  • the plurality of electronic devices participating in the multi-party audio service may include an electronic device (101) (e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23), a first external electronic device (200) (e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21), a second external electronic device (300) (e.g., the electronic device (104) of FIG. 1, or the second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG.
  • an electronic device (101) e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23
  • a first external electronic device (200) e.g., the electronic device (102) of FIG. 1, or the first external electronic device (
  • the device (1001) may include a fourth external electronic device (1003) (e.g., the fourth external electronic device (1003) of FIG. 16 or FIG. 21), and/or a fifth external electronic device (1005).
  • the electronic device (101) may be a smartphone.
  • the first external electronic device (200) may be an ear-wearable device, and the first external electronic device (200) may include a first earbud (202) (e.g., a left earbud) and/or a second earbud (204) (e.g., a light earbud).
  • the first earbud (202) may function as a first audio channel (e.g., a left audio channel), and the second earbud (204) may function as a second audio channel (e.g., a light audio channel).
  • at least one of the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) may be another ear-wearable device.
  • At least one of the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) can be another smartphone. In one embodiment, at least one of the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) can be a smartwatch. In one embodiment, at least one of the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) can be an earbud case.
  • At least one of the electronic device (101), the first external electronic device (200), the second external electronic device (300), the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) may be an electronic device that performs the role of a BIS source.
  • At least one of the electronic device (101), the first external electronic device (200), the second external electronic device (300), the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) may be an electronic device that performs the role of a BIS sink.
  • At least one of the electronic device (101), the first external electronic device (200), the second external electronic device (300), the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) may be a device performing a BIS assistant role.
  • the BIS assistant may perform an operation of searching for a BIS source in the vicinity.
  • the electronic device is an earbud, and the earbud directly searches for a BIS source in the vicinity and the earbud directly outputs audio data, the earbud may be an electronic device performing a BIS sink role together with a BIS assistant role.
  • the electronic device (101), the first external electronic device (200), the second external electronic device (300), the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) may be electronic devices that have decided to participate in a common audio channel for a multi-party audio service.
  • a plurality of common audio channels may be generated, and the electronic device (101), the first external electronic device (200), the second external electronic device (300), the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) may decide to participate in the plurality of common audio channels.
  • each of the plurality of common audio channels may be assigned to at least one group, and electronic devices included in at least one group may participate in the multi-party audio service through the common audio channel assigned to at least one group.
  • at least one of the plurality of common audio channels can be assigned to at least one group, and electronic devices included in at least one group can participate in a multi-party audio service through at least one common audio channel assigned to at least one group.
  • two or more common audio channels can be assigned to each group, and in this case, electronic devices included in a group can participate in a multi-party audio service through two or more common audio channels assigned to the group, and the two or more common audio channels can be shared by the electronic devices included in the group based on a set condition.
  • the electronic device (101), the first external electronic device (200), the second external electronic device (300), the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) may be electronic devices that have been previously authenticated as electronic devices capable of participating in a common audio channel through an authentication procedure.
  • the electronic devices capable of participating in the common audio channel may share a key (e.g., a broadcast code) applied to encryption of the common audio channel when the common audio channel is encrypted, and only electronic devices that share the key applied to encryption of the common audio channel may participate in the common audio channel.
  • the electronic devices capable of commonly using the common audio channel may be electronic devices that satisfy a set condition.
  • the set condition may include a condition of being authenticated with set authentication information, a condition of using the same user account, and/or a condition of entering the same QR code, and the set condition may be implemented in various forms in consideration of a security level for the common audio channel, and there may be no limitation on the set condition.
  • there may be no separate limitation on electronic devices that can commonly use the common audio channel For example, any electronic device can use the common audio channel as long as it can perform a synchronization operation for the common audio channel based on information about the common audio channel and time information used for synchronization for the common audio channel.
  • the electronic device (101), the first external electronic device (200), the second external electronic device (300), the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005) can use a common audio channel that uses the same access address.
  • the common audio channel can be generated by any one of the electronic device (101), the first external electronic device (200), the second external electronic device (300), the third external electronic device (1001), the fourth external electronic device (1003), and/or the fifth external electronic device (1005).
  • the electronic device (101) may share information about the generated common audio channel and time information used for synchronization for the common audio channel with a first external electronic device (200), a second external electronic device (300), a third external electronic device (1001), a fourth external electronic device (1003), and/or a fifth external electronic device (1005).
  • the time information used for synchronization of the common audio channel may include a time difference from a time point at which the periodic advertising operation starts to a time point at which the common audio channel starts.
  • the information about the common audio channel may include BIGInfo included in an AUX_SYNC_IND PDU transmitted via averting
  • the time information used for synchronization about the common audio channel may include timing information included in an AUX_SYNC_IND PDU transmitted via periodic averting.
  • FIG. 11 is a diagram schematically illustrating an operation of an electronic device establishing a common audio channel in a wireless communication network according to one embodiment.
  • the structure of the wireless communication network can be implemented similarly to the structure of the wireless communication network described in FIG. 10, and therefore, a detailed description thereof will be omitted.
  • An electronic device (101) e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23
  • a first external electronic device (200) e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21
  • BLE method e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21
  • a first external electronic device (200) may transmit a BLE advertising (BLE ADV) signal (e.g., a BLE ADV packet) in a multicast manner or a broadcast manner.
  • BLE ADV BLE advertising
  • the BLE ADV packet may be a packet that transmits information related to a connection or an account (e.g., pairing) to unspecified surrounding electronic devices (e.g., the electronic device (101)).
  • the first external electronic device (200) may be stored in an earbud case device (not shown in FIG. 11) (e.g., the earbud case device (206) of FIG. 2).
  • the earbud case device may be a device that stores and charges the first external electronic device (200). In Fig. 11, for convenience of explanation, it is assumed that the first external electronic device (200) is stored in the earbud case.
  • the first external electronic device (200) may start transmitting a BLE ADV packet.
  • the first external electronic device (200) may start transmitting a BLE ADV packet.
  • the first external electronic device (200) may start transmitting a BLE ADV packet periodically. The period at which the BLE ADV packet is transmitted may vary as needed. The first external electronic device (200) may transmit a BLE ADV packet based on the set period.
  • a BLE ADV packet may include at least one of identification information of the first external electronic device (200), user account information of the first external electronic device (200), information about an electronic device with which the first external electronic device (200) is currently paired, information about an electronic device that has performed a pairing process with the first external electronic device (200), information about electronic devices that can be paired simultaneously, information about transmission power, a sensing area, and a remaining battery level of the first external electronic device (200), and/or audio channel role information.
  • the audio channel role may be a first audio channel (e.g., a left audio channel) role and/or a second audio channel (e.g., a right audio channel).
  • FIG. 12 is a diagram schematically illustrating the format of a BLE ADV packet in a wireless communication network according to one embodiment.
  • a BLE ADV packet (1200) may include a preamble field (1202), an advertising access address field (1204), a packet data unit (PDU) field (1206), and a cyclic redundancy check (CRC) field (1208).
  • PDU packet data unit
  • CRC cyclic redundancy check
  • the preamble field (1202) may include information used to perform frequency synchronization and/or symbol timing estimation in an electronic device (e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23) receiving the BLE ADV packet (1200).
  • the preamble field (1202) may be implemented as 1 byte.
  • the preamble field (1202) may include a fixed sequence of 1 byte in length, in which bit values 0 and bit values 1 are alternately configured, based on address information included in the advertising access address field (1204).
  • the preamble field (1202) may include “10101010” when the address information included in the advertising access address field (1204) starts with 1.
  • the preamble field (1202) may include “01010101” when the address information included in the advertising access address field (1204) starts with 0.
  • the advertising access address field (1204) may include address information related to the BLE ADV packet (1200).
  • the advertising access address field (1204) may be implemented with 4 bytes.
  • the PDU field (1206) may have a variable length from a minimum of 2 bytes to a maximum of 39 bytes.
  • the PDU field (1206) may include a header field (1210) and a payload field (1212).
  • the header field (1210) may include information indicating the type and length of data included in the payload field (1212). In one embodiment, the header field (1210) may include information indicating that the type of data included in the payload field (1212) is advertising data. As an example, the header field (1210) may be implemented with 2 bytes.
  • the payload field (1212) may have a variable length of 37 bytes or less and may include an advertising address (AdvA) field (1214) and an advertising data (AdvData) field (1216).
  • AdvancedA advertising address
  • AdvancedData advertising data
  • the AdvA field (1214) may include an address (1218) of the first external electronic device transmitting the BLE ADV packet (1200).
  • the address (1218) of the first external electronic device may be a medium access control (MAC) address of the first external electronic device.
  • the address (1218) of the first external electronic device may be a resolvable private address (RPA).
  • the RPA may be implemented with, for example, 48 bits.
  • the RPA may be divided into a first part (e.g., a 24-bit random part called prand) and a second part (e.g., a 24-bit hash part called hash).
  • the least significant octet of the PRA may be the least significant octet of the hash, and the most significant octet of the PRA may be the most significant octet of the prand.
  • the AdvData field (1216) may include advertising data (1220) of up to 31 bytes.
  • the AdvData field (1216) may include at least one of identification information of the first external electronic device, user account information of the first external electronic device, information about an electronic device with which the first external electronic device is currently paired, information about an electronic device that has performed a pairing process with the first external electronic device, information about electronic devices with which the first external electronic device can be simultaneously paired, information about transmission power, a sensing area, information about a remaining battery level of the first external electronic device, or audio channel role information.
  • the audio channel role of the first external electronic device may be a first audio channel (e.g., a left audio channel) and/or a second audio channel (e.g., a right audio channel).
  • the AdvData field (1216) may include one or more advertising data (AD) elements.
  • the one or more AD elements may be, for example, N AD elements including an AD 0 element (1222) through an AD N element (1226).
  • one or more AD elements may each include a length field, a type field, and an AD data field.
  • FIG. 12 illustrates a length field (1228), a type field (1230), and an AD data field (1232) included in an AD 0 element (1222).
  • an AD N element (1226) may include a length field, a type field, and an AD data field similar to the AD 0 element (1222).
  • the length field (1228) may include length information of the AD data field (1232), and the type field (1230) may include type information of data included in the AD data field (1232).
  • the type field (1232) may include information indicating one of the data types as shown in Table 1 below.
  • the CRC field (1208) may include information used by the electronic device to detect errors for received BLE ADV packets.
  • the CRC field (1208) may be implemented with 3 bytes.
  • the first external electronic device (200) can transmit a BLE ADV packet based on a set condition.
  • the set condition can include at least one of a condition in which power is supplied to the first external electronic device (200), a condition in which a set cycle is reached, or a user input.
  • the electronic device (101) can perform a BLE scan operation in a set scan period.
  • the electronic device (101) may receive at least one BLE ADV packet among the BLE ADV packets transmitted from the first external electronic device (200).
  • the electronic device (101) that has received the BLE ADV packet may display a user interface (UI) through a display module (e.g., the display module (160) of FIG. 1).
  • the electronic device (101) may display the UI through the display module based on information included in the received BLE ADV packet and a set condition.
  • the UI may include an image corresponding to the first external electronic device (200).
  • the UI may include device recognition information, and the device recognition information may be information generated corresponding to a result of the electronic device (101) recognizing the first external electronic device (200).
  • the electronic device (101) may recognize that the first external electronic device (200) is Samsung Galaxy Buds, and may generate information related to the Samsung Galaxy Buds as device recognition information.
  • the generated device recognition information may be included in the UI, and the UI including the device recognition information may be displayed through the display module.
  • An example of the UI displayed through the display module of the electronic device (101) may be as illustrated in FIG. 13.
  • FIG. 13 is a diagram schematically illustrating a UI displayed on an electronic device when the electronic device receives a BLE ADV packet in a wireless communication network according to one embodiment.
  • an electronic device e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23
  • a first external electronic device e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21
  • the electronic device may display a UI through a display module (e.g., the display module (160) of FIG. 1).
  • the electronic device may display the UI through the display module based on information included in the received BLE ADV packet and set conditions.
  • the UI includes device recognition information
  • the device recognition information may be information generated in response to a result of the electronic device recognizing the first external electronic device.
  • the electronic device may recognize that the first external electronic device is Samsung Galaxy Buds, and may generate information related to the Samsung Galaxy Buds as the device recognition information.
  • the device recognition information may indicate whether the electronic device has been previously paired with the first external electronic device, or may be generated based on a user account of the first external electronic device.
  • the electronic device may recognize the first external electronic device by receiving a BLE ADV packet from the first external electronic device, and may output a UI for notifying the user of the recognized first external electronic device through a display of the electronic device.
  • the UI may include at least one of an image (1300) representing a shape of the first external electronic device (e.g., the first earbud (202) and/or the second earbud (204) of FIG. 2) or text representing a device name of the first external electronic device (e.g., My Galaxy Buds).
  • the UI may further include an image (1310) representing a battery status of the first external electronic device.
  • the electronic device (101) that receives the BLE ADV packet can generate a scan request (SCAN_REQ) packet based on information included in the BLE ADV packet and transmit the generated SCAN_REQ packet to the first external electronic device (200).
  • the first external electronic device (200) that receives the SCAN_REQ packet from the electronic device (101) can generate a scan response (SCAN_RSP) packet, which is a response packet to the SCAN_REQ packet, based on information included in the SCAN_REQ packet and transmit the generated SCAN_RSP packet to the electronic device (101).
  • SCAN_RSP scan response
  • An electronic device (101) that receives a SCAN_RSP packet from a first external electronic device (200) may determine whether it is necessary to establish a connection with the first external electronic device (200) based on information included in the SCAN_RSP packet. If it is determined that it is necessary to establish a connection with the first external electronic device (200), the electronic device (101) may transmit a connection indication (CONNECT_IND) packet requesting the establishment of a connection to the first external electronic device (200).
  • the CONNECT_IND packet may include at least one of an access address (AA) of the electronic device (101), a coding indicator (CI), a transmit window offset, and/or a transmit window size.
  • a first external electronic device (200) that receives a CONNECT_IND packet from an electronic device (101) can determine whether to establish a connection with the electronic device (101) based on information included in the CONNECT_IND packet. If it is determined to establish a connection with the electronic device (101), the first external electronic device (200) can establish a connection (e.g., a first communication link) with the electronic device (101) (operation 1111).
  • the electronic device (101) that transmitted the CONNECT_IND packet can operate as a central, and the first external electronic device (200) that received the CONNECT_IND packet can operate as a peripheral.
  • the electronic device (101) and the first external electronic device (200) may exchange (e.g., transmit and/or receive) data (e.g., control data and/or control messages) via the first communication link.
  • the control data and/or control messages may include data required to create a common audio channel for a multi-party audio service.
  • the multi-party audio service may include an audio service in which at least two electronic devices (e.g., the electronic device (101) and the first external electronic device (200)) participate.
  • the common audio channel used in the multi-party audio service may include a channel sharing the same access code.
  • the common audio channel will be described as an example of being implemented as BIS, but it is to be understood that the common audio channel may be implemented as CIS as well as BIS.
  • the common audio channel may be implemented as CIS as well as BIS.
  • at least two electronic devices participating in a multi-party audio service through a common audio channel implemented as BIS or CIS may exchange audio data by sharing the same access code.
  • the first external electronic device (200) may transmit a packet (e.g., a common audio channel creation request packet) requesting creation of a common audio channel to the electronic device (101) through the first communication link based on a set condition.
  • the common audio channel creation request packet may include information requesting creation of a common audio channel, and there may be no limitation on the format thereof.
  • the set condition may include a user input requesting creation of a common audio channel for a multi-party audio service, execution of a set application, and/or entry into a set area.
  • the user input may include a set physical user interface (PUI), and/or a voice command.
  • the set application may include a dedicated application for the multi-party audio service.
  • the set area may include an area set in which the multi-party audio service is to be performed.
  • the set area may include a conference room, and/or a classroom.
  • the set area may be set based on a signal or input (e.g., user input) obtained by the first external electronic device (200), and there may be no limitation on the conditions under which the area in which the multi-party audio service can be performed is set.
  • the first external electronic device (200) may determine the area in which the multi-party audio service can be performed based on conditions in which various parameters may be considered.
  • An electronic device (101) that receives a common audio channel creation request packet from a first external electronic device (200) can create a common audio channel in operation 1115.
  • an operation of the electronic device (101) creating a common audio channel is specifically described as follows.
  • the electronic device (101) can determine an audio transmission service type to be applied to a common audio channel.
  • the audio transmission service type can include a low energy (LE) audio service type, an ACL type, and/or an advertising type.
  • the LE audio service type can include a BIS type and/or a CIS type.
  • the electronic device (101) can determine a physical link type to be applied to a common audio channel.
  • the physical link type can include a physical link type to be used when transmitting audio data in the common audio channel.
  • the physical link type can include an uncoded type, a coded type, a physical link type for high-speed transmission, and/or a physical link type capable of variable operation.
  • the electronic device (101) can determine an access address to be applied to a common audio channel.
  • a unique access address can be determined for each common audio channel.
  • the access address can be a 32-bit value, can be generated based on a set rule, and a unique corresponding access address can be determined each time a common audio channel is generated.
  • the electronic device (101) can determine a channel map to be applied to a common audio channel.
  • the electronic device (101) when the surrounding environment of the electronic device (101) is a noisy environment, the electronic device (101) can determine a channel map so that only a minimum number of physical channels can be used.
  • the noisy environment can be an environment in which noise higher than a set noise level is measured.
  • the channel map can be determined so that all physical channels can be used.
  • the clean environment can be an environment in which noise lower than a set noise level is measured.
  • the electronic device (101) can determine audio transmission service parameters to be applied to the common audio channel.
  • the audio transmission service parameters can be determined based on the audio transmission service type to be applied to the common audio channel.
  • the audio transmission service parameters may include BIS attribute information corresponding to the BIS type.
  • the BIS attribute information may include Num_BIS, ISO_Interval, BIS_Spacing, Sub_Interval, Max_PDU, Max_SDU, MPT, BN, PTO, IRC, NSE, Framed, and/or Encrypted.
  • Num_BIS can represent the number of BISs included in BIG.
  • BISs included in BIG can be uniquely assigned a total of Num_BIS BIS_Numbers from 1 to Num_BIS.
  • ISO_Interval can represent a time interval in units of 1.25ms between two adjacent BIG anchor points.
  • ISO_Interval can be set to any value between 4 and 3200. For example, if the value of ISO_Interval is set to "4", the time interval between two adjacent BIG anchor points can be 5ms, and if the value of ISO_Interval is set to "3200", the time interval between two adjacent BIG anchor points can be 4s.
  • - BIS_Spacing may represent the time between the start times of corresponding subevents in adjacent BISs contained in the BIG, and/or the time between the start time of the first subevent of the last BIS and the start time of the control subevent (if any).
  • Sub_Interval can represent the time between the start points of two consecutive subevents of each BIS.
  • Max_PDU can indicate the maximum number of data octets (excluding message integrity check (MIC)) that can be transmitted in each BIS data PDU in BIG.
  • the value of Max_PDU can be a value between 1 and 251.
  • Max_SDU can indicate the maximum size of a service data unit (SDU) on BIG.
  • the value of Max_SDU can be between 1 and 4095 octets.
  • BN can be a value between 1 and 7
  • PTO Pre-Transmission Offset
  • IRC Immediate Repetition Count
  • NSE can represent the number of sub-events per BIS in each BIG event.
  • the value of NSE can be between 1 and 31, and can be an integer multiple of BN.
  • - Framed can indicate whether BIG is transmitting framed data or unframed data.
  • the audio transmission service parameters may include CIS attribute information corresponding to the CIS type.
  • the CIS attribute information may include ISO_Interval, Sub_Interval, SE_Length, Max_PDU, Max_SDU, MTP_C, MTP_P, NSE, BN, FT, Framed, and/or Encrypted.
  • - ISO_Interval can represent the time between CIS anchor points of adjacent CIS events.
  • Sub_Interval can represent the time between the start times of two consecutive subevents of CIS.
  • - SE_Length can indicate the maximum length of a subevent.
  • Max_PDU can indicate the maximum number of data bytes that can be transmitted in each CIS data PDU, and the value of Max_PDU can be different in each direction.
  • Max_SDU can represent the maximum size of SDU on the corresponding CIS, and the value of Max_SDU can be different in each direction.
  • the values of MPT_C and MPT_P can include MIC if there is a possibility that CIS can be encrypted.
  • NSE can represent the maximum number of subevents per CIS event.
  • - BN and FT can control what data is transmitted in each CIS event, and the values of BN and FT can be different in each direction.
  • - Framed can indicate whether the CIS transmits framed data (framed), and can have the same value in both directions.
  • the audio transmission service parameters may include ACL attribute information corresponding to the ACL type.
  • the ACL attribute information may include Connection Interval, Peripheral Latency, and/or Subrate Factor.
  • the audio transmission service parameters may include advertising attribute information corresponding to the advertising type.
  • the advertising attribute information may include an Advertising Interval, an Advertising type, and/or an Advertising Channel.
  • the electronic device (101) can determine audio data transmission/reception timing to be applied to a common audio channel.
  • the audio data transmission/reception timing can include timing at which audio data can be transmitted and/or timing at which audio data can be received in the common audio channel.
  • the electronic device (101) may generate a common audio channel based on an audio transmission service type to be applied to the determined common audio channel, a physical link type to be used for the determined audio data transmission, an access address to be applied to the determined common audio channel, a channel map to be applied to the determined common audio channel, determined audio transmission service parameters, and/or audio data transmission/reception timing, in operation 1115.
  • information about a common audio channel generated by the electronic device (101) may include PHY 2M LE, Type BIS, Access Address Code 0x19790206, Channel Map 0x1088472554, Num_BIS 1, ISO_Interval 30ms, BIS_Spacing 0, Sub_Interval 594 ⁇ s, Max_PDU 100byte, Max_SDU 100byte, MTP 444 ⁇ s, BN 3, PTO 0, IRC 2, NSE 6, Unframed, and/or Unencrypted.
  • FIG. 14 is a diagram schematically illustrating a common audio channel generated by an electronic device in a wireless communication network according to one embodiment.
  • an electronic device e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23
  • it may determine an audio transmission service type to be applied to the common audio channel, a physical link type to be used for transmitting audio data, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing.
  • An operation of the electronic device determining an audio transmission service type to be applied to the common audio channel, a physical link type to be used for transmitting audio data, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing may be similar to or substantially identical to the common audio channel generating operation of operation 1115 of FIG. 11, and thus a detailed description thereof will be omitted herein.
  • the electronic device can generate the common audio channel based on the audio transmission service type to be applied to the determined common audio channel, the physical link type to be used for the determined audio data transmission, the access address to be applied to the determined common audio channel, the channel map to be applied to the determined common audio channel, the determined audio transmission service parameters, and/or the determined audio data transmission/reception timing.
  • information about the common audio channel generated by the electronic device can include PHY 2M LE, Type BIS, Access Address Code 0x19790206, Channel Map 0x1088472554, Num_BIS 1, ISO_Interval 30ms, BIS_Spacing 0, Sub_Interval 594 ⁇ s, Max_PDU 100byte, Max_SDU 100byte, MTP 444 ⁇ s, BN 3, PTO 0, IRC 2, NSE 6, Unframed, and/or Unencrypted.
  • the electronic device may generate a common audio channel (1400) corresponding to PHY 2M LE, Type BIS, Access Address Code 0x19790206, Channel Map 0x1088472554, Num_BIS 1, ISO_Interval 30ms, BIS_Spacing 0, Sub_Interval 594 ⁇ s, Max_PDU 100byte, Max_SDU 100byte, MTP 444 ⁇ s, BN 3, PTO 0, IRC 2, NSE 6, Unframed, and/or Unencrypted. It can be seen that in the common audio channel (1400), the access address is 0x19790206 and the channel map is set to 0x1088472554.
  • the event counter may be a 39-bit counter associated with BIG, and the value of the event counter may be set to “0” for the first BIG event, and the value of the event counter may be increased by 1 as the number of BIG events increases by 1.
  • channel 24, channel 15, channel 38, channel 15, channel 3, channel 11 (CH24, CH15, CH38, CH15, CH3, CH11) can be used as common audio channels
  • channel 5 channel 33, channel 15, channel 20, channel 11, channel 19 (CH5, CH33, CH15, CH20, CH11, CH19) can be used as common audio channels
  • channel 5 channel 33, channel 5, channel 15, channel 7, channel 38 (CH5, CH33, CH5, CH15, CH7, CH38) can be used as common audio channels
  • channels 20, ... (CH20 ... ) can be used as common audio channels. It is depicted in the picture.
  • the electronic device (101) may share information about the generated common audio channel to a first external electronic device (200) (e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21) based on one of a variety of methods.
  • the electronic device (101) may share information about the generated common audio channel to external electronic devices around the electronic device (101) through periodic advertising.
  • the electronic device (101) can share information about a common audio channel generated with external electronic devices through a separate external electronic device (e.g., a server (e.g., server (108) of FIG. 1)).
  • the separate external electronic device can be connected to the electronic device (101) and the external electronic devices, including the first external electronic device (200), to manage the electronic device (101) and the external electronic devices.
  • the electronic device (101) can share information about a common audio channel created through a direct connection (e.g., a first communication link) established between the electronic device (101) and an external electronic device (200).
  • a direct connection e.g., a first communication link
  • the electronic device (101) may share time information used for common audio channel synchronization with information about the generated common audio channel to the first external electronic device (200) based on one of various methods.
  • the electronic device (101) may share an encryption key applied to the common audio channel with information about the generated common audio channel to the first external electronic device (200) based on one of various methods.
  • the time information used for synchronization of the common audio channel may include a time difference from the time when the periodic advertising operation starts to the time when the common audio channel starts.
  • FIG. 15 is a diagram schematically illustrating an operation of sharing information about a common audio channel generated by an electronic device and time information used for common audio channel synchronization in a wireless communication network according to one embodiment.
  • an electronic device may generate a common audio channel based on an audio transmission service type to be applied to the common audio channel, a physical link type to be used for audio data transmission, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing, as described in FIG. 11 or FIG. 14.
  • information about a common audio channel generated by an electronic device may include PHY 2M LE, Type BIS, Access Address Code 0x19790206, Channel Map 0x1088472554, Num_BIS 1, ISO_Interval 30ms, BIS_Spacing 0, Sub_Interval 594 ⁇ s, Max_PDU 100byte, Max_SDU 100byte, MTP 444 ⁇ s, BN 3, PTO 0, IRC 2, NSE 6, Unframed, and/or Unencrypted.
  • the electronic device may generate a common audio channel (1500) corresponding to PHY 2M LE, Type BIS, Access Address Code 0x19790206, Channel Map 0x1088472554, Num_BIS 1, ISO_Interval 30ms, BIS_Spacing 0, Sub_Interval 594 ⁇ s, Max_PDU 100byte, Max_SDU 100byte, MTP 444 ⁇ s, BN 3, PTO 0, IRC 2, NSE 6, Unframed, and/or Unencrypted. It can be seen that in the common audio channel (1500), the access address is 0x19790206 and the channel map is set to 0x1088472554.
  • the event counter may be a 39-bit counter associated with BIG, and the value of the event counter may be set to “0” for the first BIG event, and the value of the event counter may be increased by 1 as the number of BIG events increases by 1.
  • channel 24, channel 15, channel 38, channel 15, channel 3, channel 11 (CH24, CH15, CH38, CH15, CH3, CH11) can be used as common audio channels
  • channel 5 channel 33, channel 15, channel 20, channel 11, channel 19 (CH5, CH33, CH15, CH20, CH11, CH19) can be used as common audio channels
  • channel 5 channel 33, channel 5, channel 15, channel 7, channel 38 (CH5, CH33, CH5, CH15, CH7, CH38) can be used as common audio channels
  • channels 20, ... (CH20 ... ) can be used as common audio channels. It is depicted in the picture.
  • the electronic device can share information about a common audio channel and time information used for common audio channel synchronization with external electronic devices around the electronic device through a periodic advertising (PA) operation in operation 1511. Since the electronic device shares information about the common audio channel and time information used for common audio channel synchronization in operation 1511, the external electronic devices around the electronic device can synchronize to the common audio channel based on the time information used for common audio channel synchronization in operation 1513.
  • PA periodic advertising
  • FIG. 16 is a diagram illustrating an operation in which multiple electronic devices are synchronized to a common audio channel in a wireless communication network according to one embodiment.
  • an electronic device (101) may generate a common audio channel based on an audio transmission service type to be applied to the common audio channel, a physical link type to be used for audio data transmission, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing.
  • An operation of the electronic device (101) generating a common audio channel may be similar to or substantially the same as that described in FIG. 11 or FIG. 14, and thus a detailed description thereof will be omitted herein.
  • the electronic device (101) may generate a common audio channel (1600) corresponding to PHY 2M LE, Type BIS, Access Address Code 0x19790206, Channel Map 0x1088472554, Num_BIS 1, ISO_Interval 30ms, BIS_Spacing 0, Sub_Interval 594 ⁇ s, Max_PDU 100byte, Max_SDU 100byte, MTP 444 ⁇ s, BN 3, PTO 0, IRC 2, NSE 6, Unframed, and/or Unencrypted. It can be seen that in the common audio channel (1600), the access address is 0x19790206 and the channel map is set to 0x1088472554.
  • the electronic device (101) may share (broadcast) information about a common audio channel and time information used for common audio channel synchronization through periodic advertising (PA) operations in operations 1613, 1615, and 1617.
  • PA periodic advertising
  • external electronic devices around the electronic device (101) e.g., a first external electronic device (200) (e.g., an electronic device (102) of FIG. 1, or a first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 17, FIG. 19, FIG. 20, or FIG. 21)
  • a second external electronic device (300) e.g., an electronic device (104) of FIG. 1, or a second external electronic device (300) of FIG. 3, FIG. 4, or FIG.
  • a third external electronic device (1001) e.g., a third external electronic device (1001) of FIG. 10, FIG. 17, or FIG. 21
  • a fourth external electronic device (1003) e.g., a fourth external electronic device (1003) of FIG. 10
  • the electronic device (101) may receive audio packet #0, audio packet #1, audio packet #2, audio packet #0, audio packet #1, audio packet #2 through a common audio channel in a receiving mode.
  • n may represent a sequence number for an audio packet
  • audio packet #n may represent an nth audio packet transmitted through the common audio channel after the common audio channel is established.
  • FIG. 16 illustrates an audio packet transmission operation or an audio packet reception operation of an electronic device (101), a first external electronic device (200), a second external electronic device (300), a third external electronic device (1001), or a fourth external electronic device (1003) in BIG events for a common audio channel (1600) generated by the electronic device (101).
  • the audio packet transmission operation or the audio packet reception operation of the electronic device (101), the first external electronic device (200), the second external electronic device (300), the third external electronic device (1001), or the fourth external electronic device (1003) may be similar to or substantially the same as the packet transmission operation or the audio packet reception operation of the electronic device (101) described below in FIG. 18, and therefore, a detailed description thereof will be omitted herein.
  • the electronic device (101) may operate in a receive mode by default for a common audio channel and may operate in a transmit mode as needed. In one embodiment, the electronic device (101) may transmit audio data in the transmit mode. In one embodiment, when a common audio channel is established, the electronic device (101) may operate in a receive mode by default for the common audio channel. When the electronic device (101) determines that audio data to be transmitted is generated while operating in the receive mode for the common audio channel (for example, when it determines that data is input to a transmission queue (Tx queue), the electronic device (101) may switch from the receive mode to the transmit mode and transmit the audio data through the common audio channel in the transmit mode.
  • Tx queue transmission queue
  • the first external electronic device (200) may be synchronized to a common audio channel at operation 1619 according to the PA operation of the electronic device (101) at operation 1613.
  • the first external electronic device (200) may be synchronized to the common audio channel according to information about the common audio channel shared according to the PA operation of the electronic device (101) at operation 1613 and time information used for common audio channel synchronization, and may use the common audio channel. Accordingly, the first external electronic device (200) may be able to use the common audio channel from the second BIG event.
  • the first external electronic device (200) may operate in a receiving mode by default in the common audio channel and may operate in a transmitting mode as needed. According to an embodiment of the present invention, the first external electronic device (200) may transmit audio data in the transmitting mode.
  • the second external electronic device (300) may be synchronized to the common audio channel in operation 1621 according to the PA operation of the electronic device (101) in operation 1615.
  • the second external electronic device (300) may be synchronized to the common audio channel according to information about the common audio channel shared according to the PA operation of the electronic device (101) in operation 1615 and time information used for common audio channel synchronization, and may use the common audio channel. Accordingly, the second external electronic device (300) may be able to use the common audio channel from the fourth BIG event.
  • the second external electronic device (300) may operate in a receiving mode by default in the common audio channel and may operate in a transmitting mode as needed. According to an embodiment of the present invention, the second external electronic device (300) may transmit audio data in the transmitting mode.
  • the third external electronic device (1001) may be synchronized to the common audio channel in operation 1623 according to the PA operation of the electronic device (101) in operation 1617.
  • the third external electronic device (1001) may be synchronized to the common audio channel according to information about the common audio channel shared according to the PA operation of the electronic device (101) in operation 1617 and time information used for common audio channel synchronization, and may use the common audio channel. Accordingly, the third external electronic device (1001) may be able to use the common audio channel from the sixth BIG event.
  • the third external electronic device (1001) may operate in a receiving mode by default in the common audio channel and may operate in a transmitting mode as needed. According to an embodiment of the present invention, the third external electronic device (1001) may transmit audio data in the transmitting mode.
  • the fourth external electronic device (1003) may be synchronized to the common audio channel at operation 1625 according to the PA operation of the electronic device (101) at operation 1613.
  • the fourth external electronic device (1003) may be synchronized to the common audio channel according to the information about the common audio channel shared according to the PA operation of the electronic device (101) at operation 1613 and the time information used for common audio channel synchronization, and may use the common audio channel. Accordingly, the fourth external electronic device (1003) may be able to use the common audio channel from the second BIG event.
  • the fourth external electronic device (1003) may operate in the receive mode by default in the common audio channel and may operate in the transmit mode as needed. According to an embodiment of the present invention, the fourth external electronic device (1003) may transmit audio data in the transmit mode.
  • the time information used to synchronize to the common audio channel may include a time difference between a time when communication of the first communication link starts and a time when the common audio channel starts.
  • FIG. 11 a case is illustrated where information about a common audio channel is shared with a first external electronic device (200) by transmitting information about a common audio channel to the first external electronic device (200) through a first communication link established between the electronic device (101) and the first external electronic device (200).
  • FIG. 11 illustrates a case where a periodic advertising (PA) operation is performed every three time intervals (e.g., three BIG events), there may be no limitation on the cycle at which the periodic advertising operation is performed.
  • information about a location at which the next BIS audio data is to be transmitted may be provided through the PA operation, and the receiving mode and the transmitting mode have been described with reference to FIG. 7, and therefore, a detailed description thereof will be omitted herein.
  • the electronic device (101) that has shared information about the common audio channel and time information used to synchronize with the common audio channel through the first communication link may perform a PA operation in operation 1119.
  • the PA operation may include an AUX_SYNC_IND PDU transmission operation.
  • the EXT_IND PDU transmission operation and/or the AUX_ADV_IND PDU transmission operation may be an extended advertising operation and may be connected to the PA operation in the form of a train.
  • An interval (e.g., a PA period) of the PA operation may be an interval between start times of the AUX_SYNC_IND PDUs. Accordingly, the electronic device (101) may perform the PA operation in operation 1129.
  • the format of the ADV_EXT_IND PDU, the AUX_ADV_IND PDU, and/or the AUX_SYNC_IND PDU may be similar to or substantially identical to the format of the BLE ADV packet described in FIG. 12, and information about the common audio channel and time information used to synchronize to the common audio channel may be included in the advertising data (1220).
  • a first external electronic device (200) which receives information about a common audio channel and time information used for synchronizing to the common audio channel from an electronic device (101) through a first communication link, can be synchronized to the common audio channel according to the information about the common audio channel and the time information used for synchronizing the common audio channel, and can use the common audio channel.
  • the first external electronic device (200) can operate in a reception mode by default in the common audio channel, and can operate in a transmission mode as needed. Accordingly, the first external electronic device (200) can operate in a reception mode by default in the common audio channel in operations 1121, 1123, 1125, and 1127.
  • FIG. 17 is a diagram illustrating an operation in which multiple electronic devices are synchronized to a common audio channel in a wireless communication network according to one embodiment.
  • an electronic device (101) may generate a common audio channel based on an audio transmission service type to be applied to the common audio channel, a physical link type to be used for audio data transmission, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing.
  • An operation of the electronic device (101) generating a common audio channel may be similar to or substantially the same as that described in FIG. 11 or FIG. 14, and thus a detailed description thereof will be omitted herein.
  • the electronic device (101) may create a common audio channel corresponding to PHY 2M LE, Type BIS, Access Address Code 0x19790206, Channel Map 0x1088472554, Num_BIS 1, ISO_Interval 30ms, BIS_Spacing 0, Sub_Interval 594 ⁇ s, Max_PDU 100byte, Max_SDU 100byte, MTP 444 ⁇ s, BN 3, PTO 0, IRC 2, NSE 6, Unframed, and/or Unencrypted. It can be seen that in the common audio channel, the access address is 0x19790206 and the channel map is set to 0x1088472554.
  • the electronic device (101) may establish a communication link (e.g., a first communication link) in advance with a first external electronic device (200) (e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 19, FIG. 20, or FIG. 21) as described in FIG. 11, and may share information about a common audio channel and time information used for common audio channel synchronization through the first communication link.
  • the first external electronic device (200) may be synchronized to the common audio channel and may use the common audio channel according to the information about the common audio channel and the time information used for common audio channel synchronization received through the first communication link. Accordingly, the first external electronic device (200) can operate in receive mode by default on the common audio channel in operations 1711, 1713, 1715, and 1717, and can operate in transmit mode as needed.
  • the electronic device (101) may share information about a common audio channel and time information used for common audio channel synchronization through the PA operation, and the first external electronic device (200) may be synchronized to the common audio channel and may use the common audio channel according to the information about the common audio channel and time information used for common audio channel synchronization received through the first communication link.
  • the first external electronic device (200) may operate in a reception mode by default on the common audio channel in operations 1711, 1713, 1715, and 1717, and may operate in a transmission mode as needed.
  • the electronic device (101) can share (broadcast) information about a common audio channel and time information used for common audio channel synchronization through the PA operation in operation 1719 and operation 1721.
  • the PA operation may include an AUX_SYNC_IND PDU transmission operation, and the PA operation may be connected in a train form with an EA operation including an EXT_IND PDU transmission operation and/or an AUX_ADV_IND PDU transmission operation in a train form.
  • external electronic devices around the electronic device (101) e.g., the second external electronic device (300) (e.g., the electronic device (104) of FIG. 1, or the second external electronic device (300) of FIG. 3, FIG. 4, or FIG.
  • the third external electronic device (1001) e.g., the third external electronic device (1001) of FIG. 10, FIG. 16, or FIG. 21
  • the electronic device (101) shares information about a common audio channel and time information used for common audio channel synchronization in operation 1719 and operation 1721
  • the external electronic devices around the electronic device (101) can synchronize to the common audio channel based on the time information used for common audio channel synchronization.
  • the second external electronic device (300) can be synchronized to the common audio channel in operation 1720 according to the PA operation of the electronic device (101) in operation 1719.
  • the second external electronic device (300) can be synchronized to the common audio channel according to information about the common audio channel shared according to the PA operation of the electronic device (101) in operation 1719 and time information used for common audio channel synchronization, and can use the common audio channel.
  • the second external electronic device (300) can operate in a receive mode by default in the common audio channel in operations 1723, 1725, 1727, and 1729, and can operate in a transmit mode as needed.
  • the third external electronic device (1001) can be synchronized to the common audio channel according to the PA operation of the electronic device (101) in operation 1721.
  • the third external electronic device (1001) can be synchronized to the common audio channel according to the information about the common audio channel shared according to the PA operation of the electronic device (101) in operation 1721 and the time information used for common audio channel synchronization, and can use the common audio channel.
  • the third external electronic device (1001) which performs the synchronization operation for the common audio channel according to the information about the common audio channel shared according to the PA operation of the electronic device (101) in operation 1721 and the time information used for common audio channel synchronization, can operate in the reception mode by default in the common audio channel in operation 1731 and can operate in the transmission mode as needed.
  • FIG. 18 is a diagram schematically illustrating transmission and reception operations performed by an electronic device on a common audio channel in a wireless communication network according to one embodiment.
  • an electronic device (101) may generate a common audio channel based on an audio transmission service type to be applied to the common audio channel, a physical link type to be used for audio data transmission, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing.
  • An operation of the electronic device (101) generating a common audio channel may be similar to or substantially the same as described in FIG. 11 or FIG. 14, and thus a detailed description thereof will be omitted herein.
  • the electronic device (101) may operate in a reception mode by default for the common audio channel, and may operate in a transmission mode as needed. The reception mode and the transmission mode have been described in FIG. 7, and thus a detailed description thereof will be omitted herein.
  • the electronic device (101) may receive audio packets #60, audio packets #61, audio packets #62, audio packets #60, audio packets #61, and audio packets #62 through a common audio channel in a receiving mode.
  • n may represent a sequence number for an audio packet
  • audio packet #n may represent an nth audio packet transmitted through a common audio channel after the common audio channel is established.
  • the electronic device (101) may operate in a receive mode by default for the common audio channel after generating the common audio channel, and may share (broadcast) information about the common audio channel and time information used for common audio channel synchronization through a PA operation in operations 1813, 1815, and 1817.
  • a receive mode by default for the common audio channel after generating the common audio channel
  • the electronic device (101) may only perform an operation of generating the common audio channel, and may not perform other remaining operations related to the common audio channel (e.g., an operation of sharing information about the common audio channel and time information used for common audio channel synchronization).
  • information about the common audio channel and time information used for common audio channel synchronization may be shared through a server (e.g., the server (108) of FIG. 1).
  • external electronic devices around the electronic device (101) e.g., a first external electronic device (e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21), a second external electronic device (e.g., the electronic device (104) of FIG. 1, or the second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG. 17), a third external electronic device (e.g., the third external electronic device (1001) of FIG. 10, FIG. 16, FIG. 17, or FIG. 21), a fourth external electronic device (e.g., the fourth external electronic device (1003) of FIG. 10, FIG.
  • a first external electronic device e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21
  • a second external electronic device e.g
  • the time information used for common audio channel synchronization can indicate a time difference between an AUX_SYNC_IND PDU and a transmission point of audio data.
  • the time information used for common audio channel synchronization can be time information indicating how soon after an AUX_SYNC_IND PDU the audio data will be transmitted.
  • the electronic device (101) is described as an example of sharing information on a common audio channel and time information used for common audio channel synchronization through a PA operation, but the electronic device (101) can also transmit information on a common audio channel and time information used for common audio channel synchronization through a server (e.g., server (108) of FIG. 1) to which the electronic device (101) and external electronic devices around the electronic device (101) are connected, so that the external electronic devices around the electronic device (101) can obtain information on a common audio channel and time information used for common audio channel synchronization.
  • a server e.g., server (108) of FIG.
  • the electronic device (101) shares information about the common audio channel and time information used for common audio channel synchronization in operations 1813, 1815, and 1817, external electronic devices around the electronic device (101) can synchronize to the common audio channel based on the time information used for common audio channel synchronization.
  • the electronic device (101) can receive audio packet #60, audio packet #61, audio packet #62, audio packet #60, audio packet #61, audio packet #62 for the first BIG event for the common audio channel (1800), can receive audio packet #63, audio packet #64, audio packet #65, audio packet #63, audio packet #64, audio packet #65 for the second BIG event, can receive audio packet #66, audio packet #67, audio packet #68, audio packet #66, audio packet #67, audio packet #68 for the third BIG event, can receive audio packet #69, transmit audio packet #70, audio packet #71, receive audio packet #69, transmit audio packet #70, audio packet #71 for the fourth BIG event, and can receive audio packet #69 and transmit audio packet #72, audio packet #73, audio packet #71 for the fifth BIG event. #74, audio packet #72, audio packet #73, audio packet #71 for the fifth BIG event. #74, audio packet #72, audio packet #73, audio packet #74 can be transmitted, and in the sixth BIG event, audio packet #75, audio packet #76, audio
  • the electronic device (101) can only operate in receive mode during the first BIG event.
  • the electronic device (101) can only operate in receive mode during the second BIG event.
  • the electronic device (101) can only operate in receive mode during the third BIG event.
  • the electronic device (101) can operate in receive mode and transmit mode in the fourth BIG event.
  • the electronic device (101) may operate only in a transmitting mode in the fifth BIG event.
  • audio data to be transmitted may include audio data input through a microphone of the earbud.
  • the electronic device (101) may transmit audio data corresponding to the audio sound when the volume of the input audio sound exceeds a threshold volume, or transmit audio data input after a setting operation (e.g., a user input to the earbud (e.g., a user touch)) is detected.
  • the electronic device (101) can operate only in the receiving mode in the sixth BIG event.
  • the electronic device (101) since the electronic device (101) operates in the transmitting mode for transmitting audio data in the case of the fifth BIG event, other external electronic devices around the electronic device (101) may not perform the transmitting mode operation.
  • the electronic device (101) may not perform the transmitting mode operation in some time intervals in the corresponding BIG event, and in this case, other external electronic devices around the electronic device (101) may perform the transmitting mode operation in the time intervals in which the electronic device (101) does not perform the transmitting mode operation.
  • FIG. 19 is a diagram schematically illustrating transmission and reception operations performed by a first external electronic device on a common audio channel in a wireless communication network according to one embodiment.
  • an electronic device (e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, FIG. 22, or FIG. 23) may generate a common audio channel based on an audio transmission service type to be applied to the common audio channel, a physical link type to be used for audio data transmission, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing.
  • An operation of the electronic device generating a common audio channel may be similar to or substantially the same as described in FIG. 11 or FIG. 14, and thus a detailed description thereof is omitted herein.
  • the electronic device may operate in a reception mode by default in the common audio channel, and may operate in a transmission mode as needed.
  • the electronic device may share (broadcast) information about the common audio channel and time information used for common audio channel synchronization through PA operations after creating a common audio channel as described in FIG. 18.
  • external electronic devices around the electronic device (101) e.g., a first external electronic device (e.g., an electronic device (102) of FIG. 1, or a first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21
  • a second external electronic device e.g., an electronic device (104) of FIG. 1, or a second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG.
  • the device (1005) can obtain information about a common audio channel and time information used for common audio channel synchronization. Since the electronic device shares information about a common audio channel and time information used for common audio channel synchronization in the PA operation, the first external electronic device (200) can synchronize to the common audio channel based on the time information used for common audio channel synchronization.
  • FIG. 19 illustrates an audio data packet transmission operation or an audio data packet reception operation of a first external electronic device (200) in BIG events for a common audio channel (1900) generated by an electronic device.
  • Each number illustrated in FIG. 19 may represent a sequence number of an audio packet, and the audio data packet transmission operation or the audio data packet reception operation of the first external electronic device (200) of FIG. 19 may be similar or substantially the same as the audio data packet transmission operation or the audio data packet reception operation of the electronic device (101) of FIG. 18 except for the PA operation, and therefore, a detailed description thereof will be omitted herein.
  • FIG. 20 is a diagram schematically illustrating an audio data exchange operation between an electronic device and a first external electronic device in a wireless communication network according to one embodiment.
  • an electronic device (101) may generate a common audio channel based on an audio transmission service type to be applied to the common audio channel, a physical link type to be used for audio data transmission, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing.
  • An operation of the electronic device (101) generating a common audio channel may be similar to or substantially the same as described in FIG. 11 or FIG. 14, and thus a detailed description thereof is omitted herein.
  • the electronic device (101) may operate in a reception mode by default in the common audio channel, and may operate in a transmission mode as needed.
  • the electronic device (101) may share (broadcast) information about the common audio channel and time information used for common audio channel synchronization through PA operation after creating a common audio channel as described in FIG. 18.
  • external electronic devices around the electronic device (101) e.g., a first external electronic device (e.g., an electronic device (102) of FIG. 1, or a first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, or FIG. 21), a second external electronic device (e.g., an electronic device (104) of FIG. 1, or a second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG.
  • the electronic device (1005) can obtain information about a common audio channel and time information used for common audio channel synchronization. Since the electronic device shares information about a common audio channel and time information used for common audio channel synchronization in the PA operation, the first external electronic device (200) can synchronize to the common audio channel based on the time information used for common audio channel synchronization.
  • FIG. 20 illustrates an audio data packet transmission operation or an audio data packet reception operation of an electronic device (101) and an audio data packet transmission operation or an audio data packet reception operation of a first external electronic device (200) in BIG events for a common audio channel (2000) generated by the electronic device (101).
  • Each number illustrated in FIG. 20 may represent a sequence number of an audio packet, and the audio data packet transmission operation or the audio data packet reception operation of the electronic device (200) of FIG. 20 and the audio data packet transmission operation or the audio data packet reception operation of the first external electronic device (200) may be similar or substantially the same as the audio data packet transmission operation or the audio data packet reception operation of the electronic device (101) of FIG. 18 except for the PA operation, and therefore a detailed description thereof will be omitted herein.
  • FIG. 21 is a diagram schematically illustrating an audio data exchange operation between a first external electronic device, a third external electronic device, and a fourth external electronic device in a wireless communication network according to one embodiment.
  • an electronic device may generate a common audio channel (2100) based on an audio transmission service type to be applied to the common audio channel, a physical link type to be used for audio data transmission, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing.
  • An operation by which the electronic device generates the common audio channel (2100) may be similar to or substantially the same as described in FIG. 11 or FIG. 14, and thus a detailed description thereof is omitted herein.
  • FIG. 21 an audio data packet transmission operation or an audio data packet reception operation of an electronic device (101), an audio data packet transmission operation or an audio data packet reception operation of a third external electronic device (1001), and an audio data packet transmission operation or an audio data packet reception operation of a fourth external electronic device (1003) in BIG events for a common audio channel (2100) are illustrated.
  • Each number illustrated in FIG. 21 may represent a sequence number of an audio packet, and the audio data packet transmission operation or the audio data packet reception operation of the electronic device (101) of FIG.
  • the audio data packet transmission operation or the audio data packet reception operation of the third external electronic device (1001), and the audio data packet transmission operation or the audio data packet reception operation of the fourth external electronic device (1003) may be similar or substantially the same as the audio data packet transmission operation or the audio data packet reception operation of the electronic device (101) of FIG. 18 except for the PA operation, and therefore, a detailed description thereof will be omitted herein.
  • the electronic devices operating in the receiving mode can simultaneously process the audio data for the electronic device that received the preamble signal first among the electronic devices operating in the transmitting mode.
  • the two or more modems can be used to simultaneously process audio data transmitted from the two or more electronic devices.
  • the two or more modems can simultaneously process audio data transmitted from the two or more electronic devices without interference if the distance between their antennas is greater than or equal to a set distance (e.g., 7.5 cm, 15 cm, etc.).
  • a collision may occur for audio packets that are not indicated by arrows, making normal processing difficult.
  • the audio packets that are not indicated by arrows can also be normally processed.
  • FIG. 22 is a diagram schematically illustrating an operation of an electronic device establishing a common audio channel in a wireless communication network according to one embodiment.
  • the structure of the wireless communication network can be implemented similarly to the structure of the wireless communication network described in FIG. 10, and therefore, a detailed description thereof will be omitted.
  • the operation of the electronic device illustrated in FIG. 22 may be performed by an external electronic device (e.g., a first external electronic device (e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21), a second external electronic device (e.g., the electronic device (104) of FIG. 1, or the second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG.
  • a first external electronic device e.g., the electronic device (102) of FIG. 1, or the first external electronic device (200) of FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 19, FIG. 20, or FIG. 21
  • a second external electronic device e.g., the electronic device (104) of FIG. 1, or the second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG.
  • a third external electronic device e.g., the third external electronic device of FIG. 10, FIG. 16, FIG. 17, or FIG. 21.
  • the operation of the electronic device described in FIG. 11 may be different in that the common audio channel may be generated based on the set condition even if a packet requesting the generation of a common audio channel (e.g., a common audio channel generation request packet) is not received from the fourth external electronic device (e.g., the fourth external electronic device (1003) of FIG. 10, FIG. 16, or FIG. 21), and/or the fifth external electronic device (e.g., the fifth external electronic device (1005) of FIG. 10).
  • the fourth external electronic device e.g., the fourth external electronic device (1003) of FIG. 10, FIG. 16, or FIG. 21
  • the fifth external electronic device e.g., the fifth external electronic device (1005) of FIG. 10.
  • the electronic device may generate a common audio channel based on a set condition.
  • the set condition may include a user input requesting to generate a common audio channel for a multi-party audio service, execution of a set application, and/or entry into a set area.
  • the user input may include a set physical user interface (PUI), and/or a voice command.
  • the set application may include a dedicated application for the multi-party audio service.
  • the set area may include an area where the multi-party audio service is set to be performed.
  • the set area may include a conference room and/or a classroom. Since the operation of the electronic device generating a common audio channel is similar to or substantially the same as described in FIGS. 11 and 14, a detailed description thereof is omitted herein.
  • An electronic device that creates a common audio channel based on a set condition can share the information about the common audio channel and the time information used for synchronization to the common audio channel with external electronic devices around the electronic device by broadcasting information about the common audio channel and time information used for synchronization to the common audio channel through a periodic advertising operation at operation 2213.
  • the operation of sharing the information about the common audio channel and the time information used for synchronization to the common audio channel with external electronic devices around the electronic device is similar to or substantially the same as that described with reference to FIG. 11, and therefore a detailed description thereof is omitted herein.
  • the electronic device which has shared information about the common audio channel and time information used for synchronizing to the common audio channel, can operate in the receive mode by default in operation 2215.
  • the electronic device can perform a periodic advertising operation corresponding to the periodic advertising cycle in operation 2221 while operating in the receive mode in operations 2217 and 2219, and then operate in the receive mode again in operation 2223.
  • the electronic device determines that audio data to be transmitted is generated while operating in the receive mode by default after generating a common audio channel, the electronic device can transmit audio data at the transmission timing of the common audio channel.
  • FIG. 23 is a diagram illustrating a receiving operation performed by an electronic device after a common audio channel is created in a wireless communication network according to one embodiment.
  • an electronic device e.g., the electronic device (101) of FIG. 1, FIG. 2, FIG. 4, FIG. 10, FIG. 11, FIG. 16, FIG. 17, FIG. 18, FIG. 20, or FIG. 22
  • it may determine an audio transmission service type to be applied to the common audio channel, a physical link type to be used for audio data transmission, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing.
  • An operation of the electronic device determining an audio transmission service type to be applied to the common audio channel, a physical link type to be used for audio data transmission, an access address to be applied to the common audio channel, a channel map to be applied to the common audio channel, audio transmission service parameters, and/or audio data transmission/reception timing may be similar to or substantially identical to the common audio channel generating operation of operation 1115 of FIG. 11, and thus a detailed description thereof will be omitted herein.
  • the electronic device can generate a common audio channel (2300) based on an audio transmission service type to be applied to the determined common audio channel, a physical link type to be used for transmitting the determined audio data, an access address to be applied to the determined common audio channel, a channel map to be applied to the determined common audio channel, determined audio transmission service parameters, and/or determined audio data transmission/reception timing.
  • a common audio channel (2300) based on an audio transmission service type to be applied to the determined common audio channel, a physical link type to be used for transmitting the determined audio data, an access address to be applied to the determined common audio channel, a channel map to be applied to the determined common audio channel, determined audio transmission service parameters, and/or determined audio data transmission/reception timing.
  • FIG. 23 an audio data packet transmission operation or an audio data packet reception operation of the electronic device (101) in BIG events for a common audio channel (2300) generated by the electronic device is illustrated.
  • Each number illustrated in FIG. 23 may represent a sequence number of an audio packet, and the audio data packet transmission operation or the audio data packet reception operation of the electronic device (101) of FIG. 23 may be similar or substantially the same as the audio data packet transmission operation or the audio data packet reception operation of the electronic device (101) of FIG. 18 except for the PA operation, and therefore, a detailed description thereof will be omitted herein.
  • the electronic device may operate in the reception mode by default.
  • the electronic device may switch from the reception mode to the transmission mode and transmit the audio data through the common audio channel in the transmission mode.
  • the common audio channel may be released.
  • the condition for releasing the common audio channel may be implemented by user input or various parameters, and there may not be any restrictions on the condition for releasing the common audio channel.
  • FIG. 24 is a diagram schematically illustrating operations of a second external electronic device, a third external electronic device, and a fourth external electronic device in a wireless communication network according to one embodiment.
  • each of a plurality of electronic devices e.g., a second external electronic device (300) (e.g., the electronic device (104) of FIG. 1, or the second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG. 17), a third external electronic device (1001) (e.g., the third external electronic device (1001) of FIG. 10, FIG. 16, FIG. 17, or FIG. 21), and/or a fourth external electronic device (1003) (e.g., the fourth external electronic device (1003) of FIG. 10, FIG. 16, or FIG.
  • a second external electronic device e.g., the electronic device (104) of FIG. 1, or the second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG. 17
  • a third external electronic device (1001) e.g., the third external electronic device (1001) of FIG. 10, FIG. 16, FIG. 17, or FIG. 21
  • a fourth external electronic device (1003) e.g., the fourth external electronic device (1003) of FIG. 10, FIG. 16,
  • each of the second external electronic device (300), the third external electronic device (1001), and/or the fourth external electronic device (1003) can generate a BIG and perform a PA operation.
  • each of the second external electronic device (300), the third external electronic device (1001), and/or the fourth external electronic device (1003) acts as a BIS source and thus can perform a transmission operation at each BIG event.
  • FIG. 25 is a diagram schematically illustrating operations of a second external electronic device, a third external electronic device, and a fourth external electronic device in a wireless communication network according to one embodiment.
  • a plurality of electronic devices e.g., a second external electronic device (300) (e.g., the electronic device (104) of FIG. 1, or the second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG. 17), a third external electronic device (1001) (e.g., the third external electronic device (1001) of FIG. 10, FIG. 16, FIG. 17, or FIG. 21), and/or a fourth external electronic device (1003) (e.g., the fourth external electronic device (1003) of FIG. 10, FIG. 16, or FIG. 21)) may exist in the wireless communication network.
  • a second external electronic device (300) e.g., the electronic device (104) of FIG. 1, or the second external electronic device (300) of FIG. 3, FIG. 4, FIG. 16, or FIG. 17
  • a third external electronic device (1001) e.g., the third external electronic device (1001) of FIG. 10, FIG. 16, FIG. 17, or FIG. 21
  • a fourth external electronic device (1003) e.g., the fourth external
  • the second external electronic device (200), the third external electronic device (1001), and/or the fourth external electronic device (1003) may provide a set service (e.g., a multi-party audio service) through a common audio channel without generating a common audio channel.
  • the set service may be performed in consideration of resources and timing of electronic devices that are participating or will participate in the set service (e.g., a multi-party audio service) simultaneously.
  • the second external electronic device (200) may generate a BIG through a set application (e.g., Samsung BIS) and share information about the generated BIG with other external electronic devices around the second external electronic device (300) through a PA operation.
  • an external electronic device e.g., a third external electronic device (1001)) performing the same application (e.g., Samsung BIS) may acquire BIG parameters and timing that the second external electronic device (300) is operating, or acquire BIG parameters and timing that the second external electronic device (300) is operating, coordinate the acquired BIG parameters and timing with the second external electronic device (300), and then generate a new BIG so as not to overlap with the transmission timing of the second external electronic device (300).
  • a third external electronic device (1001) performing the same application
  • Samsung BIS may acquire BIG parameters and timing that the second external electronic device (300) is operating, or acquire BIG parameters and timing that the second external electronic device (300) is operating, coordinate the acquired BIG parameters and timing with the second external electronic device (300), and then generate a new BIG so as not to overlap with the transmission timing of the second external electronic device (300).
  • another external electronic device e.g., the fourth external electronic device (1003)
  • another external electronic device e.g., the fourth external electronic device (1003)
  • the same application e.g., Samsung BIS
  • the electronic devices that generate the BIG may check information of the other electronic devices executing the same application (e.g., Samsung BIS) (e.g., BIG parameters and timings that the other electronic devices are operating) and perform a synchronization operation for the transmission timings based on the checked information of the other electronic devices. Therefore, multiple electronic devices performing the same application (e.g., Samsung BIS) can transmit audio data through each BIS audio channel without collision.
  • the same application e.g., Samsung BIS
  • the second external electronic device (300), the third external electronic device (1001), and/or the fourth external electronic device (1003) may adjust transmission timing, reception timing, and/or transmission resources based on a set protocol that performs a negotiation operation among themselves, or an adjustment operation for a transmission time interval and/or a reception time interval.
  • a set service e.g., a multi-party audio service
  • the second external electronic device (300), the third external electronic device (1001), and/or the fourth external electronic device (1003) may adjust transmission timing, reception timing, and/or transmission resources based on a set protocol that performs a negotiation operation among themselves, or an adjustment operation for a transmission time interval and/or a reception time interval.
  • the second external electronic device (300), the third external electronic device (1001), and/or the fourth external electronic device (1003) can perform a service (e.g., a multi-party audio service) set based on the adjusted transmission timing, reception timing, and/or transmission resources.
  • a service e.g., a multi-party audio service
  • not only the transmission operation but also the reception operation can be performed via the BIS, so that the efficiency of service operation can be improved.
  • a plurality of electronic devices e.g., the second external electronic device (300), the third external electronic device (1001), and/or the fourth external electronic device (1003)
  • perform the multi-party audio service by dividing the set (e.g., limited) transmission resources
  • the number of electronic devices that can participate in the multi-party audio service can be limited to less than the set number in order to maintain service quality.
  • the method may include an operation of establishing a common audio channel, which is an audio service link commonly used by an electronic device (101) and at least one external electronic device (102; 104; 200; 300; 1001; 1003; 1005), based on a set condition.
  • a common audio channel which is an audio service link commonly used by an electronic device (101) and at least one external electronic device (102; 104; 200; 300; 1001; 1003; 1005)
  • the method may include an operation of sharing information about the common audio channel and time information used for synchronization with the at least one external electronic device (102; 104; 200; 300; 1001; 1003; 1005).
  • the method may include operating in a receiving mode in which the electronic device can receive audio data from the at least one external electronic device for the common audio channel.
  • the method may include an operation of determining, while operating in the receiving mode, that there is audio data to be transmitted to the at least one external electronic device.
  • the method may include an operation of switching from the receiving mode to the transmitting mode based on confirming the presence of the audio data.
  • the method may include an operation of transmitting, in the transmission mode, the audio data on the common audio channel.
  • the method may include switching to the receiving mode for the common audio channel based on completion of transmission of the audio data.
  • the set condition may include at least one of: a condition of receiving a packet requesting to create the common audio channel from at least one of the at least one external electronic device, a condition of confirming a user input requesting to create the common audio channel, a condition of confirming that the set application is executed, or a condition of confirming that the electronic device enters the set area.
  • the operation of sharing information about the common audio channel and time information used for synchronization with the at least one external electronic device may include an operation of broadcasting the information about the common audio channel and the time information used for synchronization with the common audio channel in a periodic advertising period.
  • the operation of sharing information about the common audio channel and time information used for synchronization with the at least one external electronic device may include an operation of transmitting, over a communication link established between the electronic device and the at least one external electronic device, information about the common audio channel and time information used for synchronization with the common audio channel.
  • the operation of sharing information about the common audio channel and time information used for synchronization with the at least one external electronic device may include an operation of transmitting, to the electronic device and a server connected to the at least one external electronic device, the information about the common audio channel and the time information used for synchronization with the common audio channel.
  • an operation of establishing a common audio channel which is an audio service link commonly used by the electronic device and at least one external electronic device, based on a set condition may include an operation of generating the common audio channel based on at least one of the determined audio transmission service type, the physical link type, the access address, the channel map, the audio transmission service parameters, or the audio data transmission/reception timing.
  • the audio transmission service type may include at least one of a broadcast isochronous stream (BIS) type or a connected isochronous stream (CIS) type.
  • BIOS broadcast isochronous stream
  • CIS connected isochronous stream
  • the audio transmission service parameters may include BIS attribute information corresponding to the BIS type.
  • the audio transmission service parameters may include CIS attribute information corresponding to the CIS type.
  • the method may include receiving, from at least one external electronic device (101; 104; 300; 1001; 1003; 1005) or a server (108), information about a common audio channel, which is an audio service link commonly used by an electronic device (102; 200) and the at least one external electronic device, and time information used for synchronization with respect to the common audio channel.
  • the method may include performing a synchronization operation for the common audio channel based on information about the common audio channel and time information used for synchronization for the common audio channel.
  • the method may include operating in a receiving mode in which the electronic device can receive audio data from the at least one external electronic device for the common audio channel.
  • the method may include an operation of receiving data from at least one external electronic device while operating in the receiving mode.
  • the method may include an operation of determining, while operating in the receiving mode, that there is audio data to be transmitted to the at least one external electronic device.
  • the method may include an operation of switching from the receiving mode to the transmitting mode based on confirming the presence of the audio data.
  • the method may include, in the transmission mode, transmitting the audio data on the common audio channel.
  • the method may include an operation of transmitting a packet requesting creation of the common audio channel to one of the at least one external electronic device (101) based on the set condition.
  • the set condition may include at least one of: a condition for confirming a user input requesting to create the common audio channel, a condition for confirming that the set application is running, or a condition for confirming that the electronic device enters a set area.
  • the operation of receiving, from the at least one external electronic device or server, information about a common audio channel, which is an audio service link commonly used by the electronic device and the at least one external electronic device, and time information used for synchronization with respect to the common audio channel may include the operation of receiving, from the at least one external electronic device, information about the common audio channel and time information used for synchronization with respect to the common audio channel, in a periodic advertising period.
  • the operation of receiving, from the at least one external electronic device or server, information about a common audio channel, which is an audio service link commonly used by the electronic device and the at least one external electronic device, and time information used for synchronization for the common audio channel may include an operation of receiving, in a communication link established between the at least one external electronic device and the electronic device, information about the common audio channel and time information used for synchronization for the common audio channel.
  • an operation of receiving, from the at least one external electronic device or server, information about a common audio channel, which is an audio service link commonly used by the electronic device and the at least one external electronic device, and time information used for synchronization with respect to the common audio channel may include an operation of receiving, from the at least one external electronic device and a server connected to the electronic device, information about the common audio channel and time information used for synchronization with respect to the common audio channel.
  • the common audio channel may be generated based on at least one of: an audio transmission service type, a physical link type, an access address, a channel map, audio transmission service parameters, or audio data transmission/reception timing.
  • the audio transmission service type may include at least one of a broadcast isochronous stream (BIS) type or a connected isochronous stream (CIS) type.
  • BIOS broadcast isochronous stream
  • CIS connected isochronous stream
  • the audio transmission service parameters may include BIS attribute information corresponding to the BIS type.
  • the audio transmission service parameters may include CIS attribute information corresponding to the CIS type.
  • a storage medium storing at least one computer-readable instruction may be provided.
  • the at least one instruction when executed by at least one processor (120) of the electronic device (101), may cause the electronic device to perform at least one operation.
  • the at least one operation may include establishing a common audio channel, which is an audio service link commonly used by the electronic device and at least one external electronic device (102; 104; 200; 300; 1001; 1003; 1005), based on a set condition.
  • the at least one operation may include sharing information about the common audio channel and time information used for synchronization with the at least one external electronic device (102; 104; 200; 300; 1001; 1003; 1005).
  • the at least one operation may include operating in a receiving mode in which the electronic device can receive audio data from the at least one external electronic device for the common audio channel.
  • a storage medium storing at least one computer-readable instruction may be provided.
  • the at least one instruction when executed by at least one processor (120) of the electronic device (102; 200), may cause the electronic device to perform at least one operation.
  • the at least one operation may include receiving, from at least one external electronic device (101; 104; 300; 1001; 1003; 1005) or server (108), information about a common audio channel, which is an audio service link commonly used by the electronic device and the at least one external electronic device, and time information used for synchronization with respect to the common audio channel.
  • the at least one operation may include performing a synchronization operation for the common audio channel based on information about the common audio channel and time information used for synchronization for the common audio channel.
  • the at least one operation may include operating in a receiving mode in which the electronic device can receive audio data from the at least one external electronic device for the common audio channel.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

Selon un mode de réalisation, un dispositif électronique (101) comprend au moins un circuit de communication (190), au moins un processeur (120), et une mémoire (130) pour stocker des instructions, les instructions amenant, lorsqu'elles sont exécutées par le ou les processeurs, le dispositif électronique à : sur la base d'une condition configurée, établir un canal audio commun qui est une liaison de service audio couramment utilisée par le dispositif électronique et au moins un dispositif électronique externe (102, 104, 200, 300 1001, 1003, 1005) ; partager, avec le ou les dispositifs électroniques externes (102, 104, 200, 300, 1001, 1003, 1005) par l'intermédiaire du ou des circuits de communication, des informations sur le canal audio commun et des informations temporelles utilisées pour la synchronisation du canal audio commun ; et fonctionner dans un mode de réception dans lequel le dispositif électronique peut recevoir des données audio provenant du ou des dispositifs électroniques externes sur le canal audio commun. D'autres modes de réalisation sont possibles.
PCT/KR2024/003160 2023-04-14 2024-03-12 Dispositif électronique permettant de fournir un service audio, et son procédé de fonctionnement Ceased WO2024214964A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP24712397.9A EP4482170A4 (fr) 2023-04-14 2024-03-12 Dispositif électronique permettant de fournir un service audio, et son procédé de fonctionnement

Applications Claiming Priority (2)

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KR1020230049680A KR20240153213A (ko) 2023-04-14 2023-04-14 오디오 서비스를 제공하는 전자 장치 및 그 동작 방법
KR10-2023-0049680 2023-04-14

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WO2024214964A1 true WO2024214964A1 (fr) 2024-10-17

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KR20180050890A (ko) * 2016-11-07 2018-05-16 삼성전자주식회사 스피커 장치, 스피커 장치와 연결되는 전자 장치 및 스피커 장치의 제어 방법
KR20220104898A (ko) * 2021-01-19 2022-07-26 삼성전자주식회사 전자 장치 및 외부 오디오 장치와의 통신 링크를 전환하는 방법
KR20220164313A (ko) * 2021-06-04 2022-12-13 삼성전자주식회사 외부 전자 장치와 통신 연결을 수행하기 위한 전자 장치 및 그의 동작 방법

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EP4482170A4 (fr) 2025-08-13
EP4482170A1 (fr) 2024-12-25

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