Patent Publication Number: US-2023164860-A1

Title: Electronic device, method, and computer readable storage medium for changing reception timing from external electronic device within wireless environment

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application is a continuation of PCT International Application No. PCT/KR2022/011479, which was filed on Aug. 3, 2022, and claims priority to Korean Patent Application No. 10-2021-0164139, filed on Nov. 25, 2021, in the Korean Intellectual Property Office, the disclosure of which are incorporated by reference herein their entirety. 
     BACKGROUND 
     Technical Field 
     The following descriptions relate to an electronic device, a method, and a non-transitory computer readable storage media for managing a reception timing from an external electronic device within a wireless environment. 
     Description Of Related Art 
     Bluetooth low energy (BLE) may provide reduced power consumption and provide at least similar or often greater communication range between connected devices compared to legacy Bluetooth (or classical Bluetooth). The BLE may be provided on an industrial, scientific, and medical (ISM) radio band. 
     SUMMARY 
     According to an embodiment, an electronic device may comprise a communication circuitry for Bluetooth low energy (BLE), at least one memory configured to store instructions, and at least one processor operably coupled with the communication circuitry; wherein the at least one processor may be, when the instructions are executed, configured to, while a first communication link with a first external electronic device operating as a first master device with respect to the electronic device is maintained, identify a second communication link with a second external electronic device operating as a second master device with respect to the electronic device; identify whether at least a portion of first time resources used for the first communication link overlap with at least portion of second time resources used or to be used for the second communication link or not; and based on identifying that at least the portion of the first time resources overlap with at least the portion of the second time resources, transmit a first request signal for adjusting the first time resources to the first external electronic device or transmit a second request signal for adjusting the second time resources to the second external electronic device. 
     According to an embodiment, a method for operating an electronic device with a communication circuitry for Bluetooth low energy (BLE), the method may comprise while a first communication link with a first external electronic device operating as a first master device with respect to the electronic device is maintained, establishing a second communication link with a second external electronic device operating as a second master device with respect to the electronic device; identifying whether at least a portion of first time resources used for the first communication link overlap with at least portion of second time resources used or to be used for the second communication link or not; and based on identifying that at least the portion of the first time resources overlap with at least the portion of the second time resources, transmitting a first request signal for adjusting the first time resources to the first external electronic device or transmitting a second request signal for adjusting the second time resources to the second external electronic device. 
     According to an embodiment, a non-transitory computer readable storage medium may store one or more programs, the one or more programs comprising instructions which, when executed by at least one processor of an electronic device with a communication circuitry for Bluetooth low energy (BLE), cause the electronic device to, while a first communication link with a first external electronic device operating as a first master device with respect to the electronic device is maintained, identify a second communication link with a second external electronic device operating as a second master device with respect to the electronic device; identify whether at least a portion of first time resources used for the first communication link overlap with at least portion of second time resources used or to be used for the second communication link or not; and based on identifying that at least the portion of the first time resources overlap with at least the portion of the second time resources, transmit a first request signal for adjusting the first time resources to the first external electronic device or transmit a second request signal for adjusting the second time resources to the second external electronic device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a block diagram of an electronic device in a network environment according to various embodiments. 
         FIG.  2    illustrates an example of a wireless environment including an electronic device according to various embodiments. 
         FIG.  3    is a simplified block diagram of an electronic device according to various embodiments. 
         FIG.  4 A  illustrates an example of time resources indicated by information in a connection request signal according to an embodiment. 
         FIG.  4 B  illustrates an example of a communication link between an electronic device and an external electronic device according to an embodiment. 
         FIG.  5 A  illustrates an example in which at least a portion of a connection interval of a first communication link overlaps at least a portion of a connection interval of a second communication link. 
         FIG.  5 B  illustrates an example in which a connection interval of a first communication link does not overlap at least a portion of a connection interval of a second communication link. 
         FIG.  6    is a flowchart illustrating a method of transmitting a request signal for adjusting time resources, according to an embodiment. 
         FIG.  7    is a flowchart illustrating a method of identifying whether to establish a second communication link, according to an embodiment. 
         FIG.  8    is a flowchart illustrating a method of identifying whether to receive at least one packet received through a second communication link after establishing a second communication link, according to an embodiment. 
         FIG.  9    is a flowchart illustrating a method of transmitting a second advertising signal different from a first advertising signal, according to an embodiment. 
         FIG.  10    is a flowchart illustrating a method of identifying whether to establish a communication link with another external electronic device based on a connection request signal received from another external electronic device after broadcasting a second advertising signal according to an embodiment. 
         FIG.  11    is a flowchart illustrating a method of identifying whether to receive at least one packet through an established communication link after establishing the communication link between a second external electronic device and an electronic device based on a second advertising signal. 
         FIG.  12    is a flowchart illustrating a method of transmitting a request signal for adjusting time resources to a first external electronic device or a second external electronic device after establishing a communication link between a second external electronic device and an electronic device based on a second advertising signal. 
         FIG.  13    illustrates a signal flow caused by an electronic device, a first external electronic device, and a second external electronic device to adjust time resources for communication with the electronic device, according to an embodiment. 
     
    
    
     DETAILED DESCRIPTION 
       FIG.  1    is a block diagram illustrating an electronic device  101  in a network environment  100  according to various embodiments. 
     Referring to  FIG.  1   , the electronic device  101  in the network environment  100  may communicate with an electronic device  102  via a first network  198  (e.g., a short-range wireless communication network), or at least one of an electronic device  104  or a server  108  via a second network  199  (e.g., a long-range wireless communication network). According to an embodiment, the electronic device  101  may communicate with the electronic device  104  via the server  108 . According to an embodiment, the electronic device  101  may include a processor  120 , memory  130 , an input module  150 , a sound output module  155 , a display module  160 , an audio module  170 , a sensor module  176 , an interface  177 , a connecting 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 (SIM)  196 , or an antenna module  197 . In some embodiments, at least one of the components (e.g., the connecting terminal  178 ) may be omitted from the electronic device  101 , or one or more other components may be added in the electronic device  101 . In some embodiments, some of the components (e.g., the sensor module  176 , the camera module  180 , or the antenna module  197 ) may be implemented as a single component (e.g., the display module  160 ). 
     The processor  120  may execute, for example, software (e.g., a program  140 ) to control at least one other component (e.g., a hardware or software component) of the electronic device  101  coupled with the processor  120 , and may perform various data processing or computation. According to one embodiment, as at least part of the data processing or computation, the processor  120  may store a command or data received from another component (e.g., the sensor module  176  or the communication module  190 ) in volatile memory  132 , process the command or the data stored in the volatile memory  132 , and store resulting data in non-volatile memory  134 . According to an embodiment, the processor  120  may include a main processor  121  (e.g., a central processing unit (CPU) or an application processor (AP)), or an auxiliary processor  123  (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction with, the main processor  121 . For example, when the electronic device  101  includes the main processor  121  and the auxiliary processor  123 , the auxiliary processor  123  may be adapted to consume less power than the main processor  121 , or to be specific to a specified function. The auxiliary processor  123  may be implemented as separate from, or as part of the main processor  121 . 
     The auxiliary processor  123  may control at least some of functions or states related to at least one component (e.g., the display module  160 , the sensor module  176 , or the communication module  190 ) among the components of the electronic device  101 , instead 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 state (e.g., executing an application). According to an embodiment, the auxiliary processor  123  (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera module  180  or the communication module  190 ) functionally related to the auxiliary processor  123 . According to an embodiment, the auxiliary processor  123  (e.g., the neural processing unit) may include a hardware structure specified for artificial intelligence model processing. An artificial intelligence model may be generated by machine learning. Such learning may be performed, e.g., by the electronic device  101  where the artificial intelligence is performed or via a separate server (e.g., the server  108 ). Learning algorithms may include, but are not limited to, e.g., supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include a plurality of artificial neural network layers. The artificial neural network may be 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-network or a combination of two or more thereof but is not limited thereto. The artificial intelligence model may, additionally or alternatively, include a software structure other than the hardware structure. 
     The memory  130  may store various data used by at least one component (e.g., the processor  120  or the sensor module  176 ) of the electronic device  101 . The various data may include, for example, software (e.g., the program  140 ) and input data or output data for a command related thererto. The memory  130  may include the volatile memory  132  or the non-volatile memory  134 . The program  140  may be stored in the memory  130  as software, and may include, for example, an operating system (OS)  142 , middleware  144 , or an application  146 . 
     The input module  150  may receive a command or data to be used by another component (e.g., the processor  120 ) of the electronic device  101 , from the outside (e.g., a user) of the electronic device  101 . The input module  150  may 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 sound output module  155  may output sound signals to the outside of the electronic device  101 . The sound output module  155  may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as playing multimedia or playing record. The receiver may be used for receiving incoming calls. According to an embodiment, the receiver may be implemented as separate from, or as part of the speaker. 
     The display module  160  may visually provide information to the outside (e.g., a user) of the electronic device  101 . The display module  160  may include, for example, a display, a hologram device, or a projector and control circuitry to control a corresponding one of the display, hologram device, and projector. According to an embodiment, the display module  160  may include a touch sensor adapted to detect a touch, or a pressure sensor adapted to measure the intensity of force incurred by the touch. 
     The audio module  170  may convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module  170  may obtain the sound via the input module  150 , or output the sound via the sound output module  155  or a headphone of an external electronic device (e.g., an electronic device  102 ) directly (e.g., wiredly) or wirelessly coupled with the electronic device  101 . 
     The sensor module  176  may detect an operational state (e.g., power or temperature) of the electronic device  101  or an environmental state (e.g., a state of a user) external to the electronic device  101 , and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module  176  may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor. 
     The interface  177  may support one or more specified protocols to be used for the electronic device  101  to be coupled with the external electronic device (e.g., the electronic device  102 ) directly (e.g., wiredly) or wirelessly. According to an embodiment, the interface  177  may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface. 
     A connecting terminal  178  may include a connector via which the electronic device  101  may be physically connected with the external electronic device (e.g., the electronic device  102 ). According to an embodiment, the connecting terminal  178  may include, for example, a HDMI connector, a USB connector, a SD card connector, or an audio connector (e.g., a headphone connector). 
     The haptic module  179  may convert an electrical signal into a mechanical stimulus (e.g., a vibration or a movement) or electrical stimulus which may be recognized by a user via his tactile sensation or kinesthetic sensation. According to an embodiment, the haptic module  179  may include, for example, a motor, a piezoelectric element, or an electric stimulator. The camera module  180  may capture a still image or moving images. According to an embodiment, the camera module  180  may include one or more lenses, image sensors, image signal processors, or flashes. 
     The power management module  188  may manage power supplied to the electronic device  101 . According to one embodiment, the power management module  188  may be implemented as at least part of, for example, a power management integrated circuit (PMIC). The battery  189  may supply power to at least one component of the electronic device  101 . According to an embodiment, the battery  189  may include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell. 
     The communication module  190  may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device  101  and the external electronic device (e.g., the electronic device  102 , the electronic device  104 , or the server  108 ) and performing communication via the established communication channel The communication module  190  may include one or more communication processors that are operable independently from the processor  120  (e.g., the application processor (AP)) and supports a direct (e.g., wired) communication or a wireless communication. According to an embodiment, the communication module  190  may include a wireless communication module  192  (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module  194  (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules may communicate with the external electronic device via the first network  198  (e.g., a short-range communication network, such as Bluetooth™, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the 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., LAN or wide area network (WAN)). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multi components (e.g., multi chips) separate from each other. The wireless communication module  192  may identify and authenticate the electronic device  101  in a communication network, such as the first network  198  or the second network  199 , using subscriber information (e.g., international mobile subscriber identity (IMSI)) stored in the subscriber identification module  196 . 
     The wireless communication module  192  may support a 5G network, after a 4G network, and next-generation communication technology, e.g., new radio (NR) access technology. The NR access technology may support enhanced mobile broadband (eMBB), massive machine type communications (mMTC), or ultra-reliable and low-latency communications (URLLC). The wireless communication module  192  may support a high-frequency band (e.g., the mmWave band) to achieve, e.g., a high data transmission rate. The wireless communication module  192  may support various technologies for securing performance on a high-frequency band, such as, e.g., beamforming, massive multiple-input and multiple-output (massive 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 the electronic device  101 , an external electronic device (e.g., the electronic device  104 ), or a network system (e.g., the second network  199 ). According to an embodiment, the wireless communication module  192  may support a peak data rate (e.g., 20 Gbps or more) for implementing eMBB, loss coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or a round trip of 1 ms or less) for implementing URLLC. 
     The antenna module  197  may transmit or receive a signal or power to or from the outside (e.g., the external electronic device) of the electronic device  101 . According to an embodiment, the antenna module  197  may include an antenna including a radiating element composed of a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module  197  may include a plurality of antennas (e.g., array antennas). In such a case, at least one antenna appropriate for a communication scheme used in the communication network, such as the first network  198  or the second network  199 , may be selected, for example, by the communication module  190  (e.g., the wireless communication module  192 ) from the plurality of antennas. The signal or the power may then be transmitted or received between the communication module  190  and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as part of the antenna module  197 . 
     According to various embodiments, the antenna module  197  may form a mmWave antenna module. According to an embodiment, the mmWave antenna module may include a printed circuit board, a RFIC disposed on a first surface (e.g., the bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a designated high-frequency band (e.g., the mmWave band), and a plurality of antennas (e.g., array antennas) disposed on a second surface (e.g., the top or a side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving signals of the designated high-frequency band. At least some of the above-described components may be coupled mutually and communicate signals (e.g., commands or data) therebetween via an inter-peripheral communication scheme (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)). 
     According to an embodiment, commands or data may be transmitted or received between the electronic device  101  and the external electronic device  104  via the server  108  coupled with the second network  199 . Each of the electronic devices  102  or  104  may be a device of a same type as, or a different type, from the electronic device  101 . According to an embodiment, all or some of operations to be executed at the electronic device  101  may be executed at one or more of the external electronic devices  102 ,  104 , or  108 . For example, if the electronic device  101  should perform a function or a service automatically, or in response to a request from a user or another device, the electronic device  101 , instead of, or in addition to, executing the function or the service, may request the one or more external electronic devices to perform at least part of the function or the service. The one or more external electronic devices receiving the request may perform the at least part of the function or the service requested, or an additional function or an additional service related to the request, and transfer an outcome of the performing to the electronic device  101 . The electronic device  101  may provide the outcome, with or without further processing of the outcome, as at least part of a reply to the request. To that end, a cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device  101  may provide ultra low-latency services using, e.g., distributed computing or mobile edge computing. In another embodiment, the external electronic device  104  may include an internet-of-things (IoT) device. The server  108  may be an intelligent server using machine learning and/or a neural network. According to an embodiment, the external electronic device  104  or the server  108  may be included in the second network  199 . The electronic device  101  may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology or IoT-related technology. 
       FIG.  2    illustrates an example of a wireless environment including an electronic device according to various embodiments. 
     Referring to  FIG.  2   , the wireless environment  200  may include an electronic device  101 , an electronic device  201 , and an electronic device  202 . 
     The electronic device  101  in the wireless environment  200  may be an audio source device such as a smartphone, a laptop computer, and a tablet PC. The electronic device  101  may transmit data on audio being played in the electronic device  101  to the electronic device  201 . For example, the data may be usable in the electronic device  201  to output audio from the electronic device  201 . In an embodiment, the electronic device  101  may be referred to as a master device. In an embodiment, the electronic device  101  may be referred to as the first external electronic device  101  in terms of being located outside the electronic device  201 . 
     The electronic device  202  in the wireless environment  200  may be an audio source device such as a smartphone, a laptop computer, and a tablet PC. The electronic device  202  may transmit data on an audio being played in the electronic device  202  to the electronic device  201 . For example, the electronic device  202  may play audio while the first external electronic device  101  also plays audio. For example, while the first external electronic device  101  transmits data on the audio played in the first external electronic device  101  to the electronic device  201  through a communication link  210  (hereinafter, referred to as the first communication link  210 ) between the first external electronic device  101  and the electronic device  201 , the electronic device  202  may transmit data on the audio played in the electronic device  202  to the electronic device  201  through a communication link  220  (hereinafter referred to as the second communication link  220 ) between the electronic device  202  and the electronic device  201 . In various embodiments, the electronic device  202  may include components such as components of electronic device  101  illustrated in  FIG.  1   . In an embodiment, the electronic device  202  may be referred to as a master device distinguished from the first external electronic device  101 , which is a master device. In an embodiment, the electronic device  202  may be referred to as the second external electronic device  202  in terms of being located outside the electronic device  201 . 
     In an embodiment, the second external electronic device  202  may transmit data to the first external electronic device  101  through a communication link  230  (hereinafter, referred to the third communication link  230 ) between the first external electronic device  101  and the second external electronic device  202 , or receive data from the first external electronic device  101  through the third communication link  230 . 
     The electronic device  201  in the wireless environment  200  may be audio sink devices such as earbuds or earphones. For example, the electronic device  201  may be configured as a pair of earbuds or earphones. However, it is not limited thereto. In embodiments where the electronic device  201  is a pair of earbuds or earphones, the electronic device  201  may be configured to play audio associated with a first external electronic device  101  though one earbud and audio associated with the second external electronic device  202  though the other earbud. In example, the electronic device  201  may receive the data from the first external electronic device  101  and output audio through a speaker of the electronic device  201  based on the data. The electronic device  201  may receive the data from the second external electronic device  202  and output audio through a speaker of the electronic device  201  based on the data. The electronic device  201  may be referred to as a slave device. 
     In an embodiment, the first external electronic device  101 , the electronic device  201 , and the second external electronic device  202  may support multi-stream audio. For example, synchronized, independent and multiple audio streams may be transmitted between the first external electronic device  101  and the electronic device  201  and/or between the second external electronic device  202  and the electronic device  201 . For example, in order to support the multi-stream audio, a connected isochronous stream (CIS) or a connected isochronous group (CIG) including the CISs may be used. However, it is not limited thereto. 
     For example, the CIS may be a logical transport causing the first external electronic device  101 , the electronic device  201 , and the second external electronic device  202  to transmit isochronous data unidirectionally or bidirectionally. For example, the CIS may be related to an asynchronous connection-less (ACL). For example, the CIS may support packets of variable size and may support transmitting one or more packets within an isochronous event. For example, the CIG may consist of two or more CISs having a same ISO (isochronous) interval. However, it is not limited thereto. 
     An electronic device that is an audio sink device may receive a packet including audio data from a first external electronic device using first time resources allocated from the first external electronic device that is an audio source device, and a packet including audio data from a second external electronic device using second time resources allocated from the second external electronic device that is another audio source device. Since the second external electronic device allocates the second time resources to the electronic device without considering the first time resources allocated from the first external electronic device, at least a portion of the second time resources may overlap at least a portion of the first time resources. The overlap of at least a portion of the first time resources and at least a portion of the second time resources may reduce reception performance of the electronic device. 
       FIG.  3    is a simplified block diagram of an electronic device according to various embodiments. Components indicated by the block diagram may be included in the electronic device  201  illustrated in  FIG.  2   . 
       FIG.  4 A  illustrates an example of time resources indicated by information in a connection request signal according to an embodiment. 
       FIG.  4 B  illustrates an example of a communication link between an electronic device and an external electronic device according to an embodiment. 
       FIG.  5 A  illustrates an example in which at least a portion of a connection interval of a first communication link overlaps at least a portion of a connection interval of a second communication link. 
       FIG.  5 B  illustrates an example in which a connection interval of a first communication link does not overlap at least a portion of a connection interval of a second communication link. Referring to  FIG.  3   , the electronic device  201  may include a processor  320 , a memory  330 , and a communication circuit  390 . In embodiments where the electronic device  201  includes a pair of earbuds or earphones, each of the pair of devices may include a processor  320 , a memory  330 , and a communication circuit  390 . 
     The processor  320  in the electronic device  201  may be operatively coupled to the memory  330  configured to store instructions. The processor  320  in the electronic device  201  may be operatively coupled to a communication circuit  390  used for communication with an external electronic device (e.g., the first external electronic device  101  and/or the second external electronic device  202 ). 
     In an embodiment, the processor  320  may broadcast an advertising signal to establish a communication link between the electronic device  201  and an external electronic device (e.g., the first external electronic device  101  and/or the second external electronic device  202 ). For example, the advertising signal may be used to scan the electronic device  201  by the external electronic device. 
     In an embodiment, the processor  320  may receive a connection request signal including information indicating time resources to be used to receive an initial packet to be transmitted from the external electronic device (e.g., the first external electronic device  101  and/or the second external electronic device  202 ) that has received the advertising signal. For example, the external electronic device may transmit the connection request signal to establish a communication link between the electronic device  201  and the external electronic device based on receiving the advertising signal. The information in the connection request signal may include data for indicating a length of a time interval in which the initial packet is transmitted and data for indicating an initiating timing of the time interval, in order to indicate the time resources. For example, referring to  FIG.  4 A , the connection request signal  401  received from the external electronic device receiving the advertising signal may include the information including data for indicating the size  403  of the window  402  to which the initial packet is to be transmitted, and data for indicating the time interval  408  between the timing  406  at which the predefined time interval  405  has elapsed from the timing  404  at which the connection request signal  401  is received and the timing  407  at which the window  402  is initiated. For example, the connection request signal  401  may be ‘CONNECT_IND’ of the Bluetooth core specification, the size  403  of the window  402  may be ‘transmitWindowSize’ of the Bluetooth core specification, the predefined time interval  405  may be ‘transmitWindowDelay’ of the Bluetooth core specification, and the time interval  408  may be ‘transmitWindowOffset’ of the Bluetooth core specification. However, it is not limited thereto. Referring back to  FIG.  3   , the processor  320  may receive the initial packet from the external electronic device using the time resources indicated by the information in the connection request signal, and identify an initiating timing (e.g., an anchor point) of a connection interval of a communication link between the external electronic device and the electronic device  201  based on a timing of receiving the initial packet. For example, the processor  320  may establish the first communication link  210  based on receiving the initial packet from the first external electronic device  101  and identify a connection interval of the first communication link  210 . For another example, the processor  320  may establish a second communication link  220  based on receiving the initial packet from the second external electronic device  202  and identify a connection interval of the second communication link  220 . 
     In an embodiment, each of the first communication link  210  and the second communication link  220  may be a communication link for an asynchronous connection-less (ACL). For example, referring to  FIG.  4 B , the processor  320  may establish a communication link  450  for an ACL as the first communication link  210  or the second communication link  220  based on receiving the connection request signal from the first external electronic device  101  or the second external electronic device  202 . The communication link  450  for the ACL may include a connection interval  451 . 
     Referring back to  FIG.  3   , each of the first communication link  210  and the second communication link  220  may be a communication link for a CIS. For example, referring to  FIG.  4 B , the processor  320  may establish a communication link  450  for the ACL and establish a communication link  455  for the CIS based on the connection request signal received from the first external electronic device  101  or the second external electronic device  202  through the established communication link  450 . For example, the communication link  455  for the CIS may be defined within the connection interval  451 . For example, the communication link  455  for the CIS may include a CIS ISO interval  458  defined as a time interval between the anchor point  456  of the CIS and the anchor point  457  of the CIS immediately after the anchor point  456 . In an embodiment, the CIS ISO interval  458  may be defined from a timing (e.g., an anchor point  456 ) at which a time interval  460  corresponding to the CIS offset has elapsed from the initiating timing  459  of the connection interval  451 . In an embodiment, the CIS event may occur within the CIS ISO interval  458 . In an embodiment, the CIS event may include a plurality of sub-events. For example, the plurality of sub-events including a sub-event  462 - 1 , a sub-event  462 - 2 , a sub-event  462 - 3  and a sub-event  462 - 4  may occur in the CIS ISO interval  458 . Within each of the plurality of sub-events, the first external electronic device  101  or the second external electronic device  202  as the master device may transmit a packet  463  including data on audio played in the first external electronic device  101  or the second external electronic device  202  to the electronic device  201  as the slave device through a communication link  455 , and the electronic device  201  may transmit a response packet  464  to the packet  463  to the first external electronic device  101  or the second external electronic device  202  through the communication link  455 . For example, the response packet  464  may be an acknowledgement signal indicating that the packet  463  is successfully received or a non-acknowledgement signal indicating that the packet  463  is not successfully received. However, it is not limited thereto. 
     Referring back to  FIG.  3   , the processor  320  may identify time resources that are to be used or used, also referred to herein as being allocated to, for the first communication link  210  or the second communication link  220 . For example, the processor  320  may identify the time resources to be used for the first communication link  210  or the second communication link  220  based on the information in the connection request signal received before establishing the first communication link  210  or the second communication link  220 . For another example, after establishing the first communication link  210  or the second communication link  220 , the processor  320  may identify the time resources to be used or used for the first communication link  210  or the second communication link  220  based on the anchor point of the first communication link  210  or the second communication link  220  and the length of the connection interval of the first communication link  210  or the second communication link  220 . For another example, when the first communication link  210  or the second communication link  220  is a communication link for the CIS, the processor  320  may identify the time resources to be used or used for the first communication link  210  or the second communication link  220  based on at least one of a length of the CIS ISO interval, an anchor point of the CIS event generated through the first communication link  210  or the second communication link  220 , a number of sub-events included in the CIS event, a length of each of the sub-events, an arrangement of each of the sub-events, or a burst number(BN) of the CIS events. For another example, the processor  320  may identify the time resources to be used or used for the first communication link  210  or the second communication link  220  based on the type of service provided based on packets received through the first communication link  210  or the second communication link  220 . For another example, the processor  320  may identify the time resources to be used or used for the first communication link  210  or the second communication link  220  based on the amount of resource of the first external electronic device  101  consumed to process the packet received through the first communication link  210  or the second communication link  220 . For another example, the processor  320  may identify the time resources to be used or used for the first communication link  210  or the second communication link  220  based on a maximum transfer unit (MTU) of the packet received through the first communication link  210  or the second communication link  220 . However, it is not limited thereto. 
     The processor  320  may identify whether at least a portion of the second time resources used or to be used for the second communication link  220  overlap at least a portion of the first time resources used for the first communication link  210 . 
     For example, referring to  FIG.  5 A , the processor  320  may establish a communication link  510  for a first CIS, which is the first communication link  210 , within a connection interval  501  of a communication link  500  for an ACL. The communication link  510  for the first CIS may have a first CIS ISO interval  512  initiated from an anchor point  511  of the first CIS where a time interval  503  corresponding to a first CIS offset has passed from the initiating timing  502  of the connection interval  501 . The CIS event  513  generated in the first CIS ISO interval  512  may include a sub-event  514 - 1 , a sub-event  514 - 2 , a sub-event  514 - 3 , and a sub-event  514 - 4 . The processor  320  may receive a packet from the first external electronic device  101  through at least a portion of the sub-event  514 - 1 , the sub-event  514 - 2 , the sub-event  514 - 3 , and the sub-event  514 - 4 . 
     In an embodiment, while the communication link  510  for the first CIS is maintained, before establishing the communication link  520  for the second CIS, which is the second communication link  220 , based on the connection request signal received from the second external electronic device  202 , the processor  320  may identify the second time resources to be used for the communication link  520  for the second CIS, and may identify that at least a portion of the second time resources overlap at least a portion of the first time resources. For example, the processor  320  may identify the anchor point  522  of the second CIS in which the time interval  521  corresponding to the second CIS offset has elapsed from the initiating timing  502  of the connection interval  501  and the second CIS ISO interval  523  initiated from the anchor point  522  of the second CIS based on the connection request signal, and identify that a portion of the second time resources overlap a portion of the first time resources within the time interval  524  based on the anchor point  522  and the second CIS ISO interval  523  of the second CIS. For another example, the processor  320  may identify a length of each of the sub-event  526 - 1 , the sub-event  526 - 2 , the sub-event  526 - 3 , and the sub-event  526 - 4  in the CIS event  525  generated in the second CIS ISO interval  523 , and a number of a plurality of sub-events including the sub-event  526 - 1 , the sub-event  526 - 2 , the sub-event  526 - 3 , and the sub-event  526 - 4  based on the above connection request signal, and identify that a portion of the second time resources overlap a portion of the first time resources within the time interval  527  based on the number of the plurality of sub-events and the length of each of the sub-events  526 - 1 , the sub-events  526 - 2 , the sub-events  526 - 3  and the sub-events  526 - 4  in the CIS event  525 . 
     In an embodiment, while the communication link  510  for the first CIS is maintained, after establishing the communication link  520  for the second CIS, the processor  320  may identify that a portion of the second time resources overlap a portion of the first time resources within the time interval  524  or the time interval  527 , based on at least one of the anchor point  522  of the second CIS, the second CIS ISO interval  523 , a length of each the sub-event  526 - 1 , the sub-event  526 - 2 , the sub-event  526 - 3 , and the sub-event  526 - 4  within the CIS event  525 , or the number of the plurality of sub-events including the sub-event  526 - 1 , the sub-event  526 - 2 , the sub-event  526 - 3 , and the sub-event  526 - 4 . 
     For another example, referring to  FIG.  5 B , the processor  320  may establish a communication link  560  for a first CIS, which is a first communication link  210  within a connection interval  551  of a communication link  550  for an ACL. The communication link  560  for the first CIS may have a first CIS ISO interval  562  initiated from an anchor point  561  of the first CIS where a time interval  553  corresponding to the first CIS offset has passed from the initiating timing  502  of the connection interval  551 . The CIS event  563  generated in the first CIS ISO interval  562  may include a sub-event  564 - 1 , a sub-event  564 - 2 , a sub-event  564 - 3 , and a sub-event  564 - 4 . The processor  320  may receive a packet from the first external electronic device  101  through at least a portion of the sub-event  564 - 1 , the sub-event  564 - 2 , the sub-event  564 - 3 , and the sub-event  564 - 4 . 
     In an embodiment, the processor  320  may identify the second time resources to be used for the communication link  570  for the second CIS, and may identify that the second time resources do not overlap the first time resources while the communication link  560  for the first CIS is maintained, before establishing the communication link  570  for the second CIS, which is the second communication link  220 , based on the connection request signal received from the second external electronic device  202 . For example, the processor  320  may identify a length of each of the sub-event  576 - 1 , the sub-event  576 - 2 , the sub-event  576 - 3 , and the sub-event  576 - 4  in the CIS event  575  generated in the second CIS ISO interval  573  and a number of a plurality of sub-events including the sub-event  576 - 1 , the sub-event  576 - 2 , the sub-event  576 - 3 , and the sub-event  576 - 4 , based on the connection request signal and may identify that the second time resources do not overlap the first time resources based on the number of the plurality of sub-events and the length of each of the sub-events  576 - 1 , the sub-events  576 - 2 , the sub-events  576 - 3  and the sub-events  576 - 4  in the CIS event  575 . 
     In an embodiment, after establishing the communication link  570  for the second CIS while the communication link  560  for the first CIS is maintained, the processor  320  may identify that the second time resources do not overlap the first time resources based on at least one of the anchor points  572  of the second CIS, the second CIS ISO interval  573 , the length of each of the sub-event  576 - 1 , the sub-event  576 - 2 , the sub-event  576 - 3  and the sub-event  576 - 4  within the CIS event  575 , or the number of the plurality of sub-events including the sub-event  576 - 1 , the sub-event  576 - 2 , the sub-event  576 - 3 , and the sub-event  576 - 4 . 
     Referring back to  FIG.  3   , the processor  320  may execute at least one operation so that the second time resources do not overlap the first time resources. 
     In an embodiment, the processor  320  may broadcast a first advertising signal. The processor  320  may receive, from the first external electronic device  101 , the connection request signal including information indicating time resources to be used to receive the initial packet to be transmitted from the first external electronic device  101 , after broadcasting the first advertising signal. For example, the connection request signal may be transmitted based on the first advertising signal from the first external electronic device  101 . The processor  320  may establish the first communication link  210 , based on receiving the initial packet transmitted based on the time resources indicated by the information in the connection request signal from the first external electronic device  101 . The processor  320  may broadcast a second advertising signal, based on establishing the first communication link  210 . For example, the second advertising signal may further include information indicating time resources used for the first communication link  210 , with respect to the first advertising signal. For example, the information further included in the second advertising signal with respect to the first advertising signal may include data for indicating a connection interval of the first communication link  210 . For example, when the first communication link  210  is a communication link for the CIS, the information further included in the second advertising signal with respect to the first advertising signal may include data on at least one of an anchor point of the CIS, a CIS ISO time interval, a number of sub-events in a CIS event generated within the CIS ISO time interval, or a length of each of the sub-events. For example, the information further included in the second advertising signal with respect to the first advertising signal may include data on a maximum transfer unit of a packet received from the first external electronic device  101  through the first communication link  210 . For example, the information further included in the second advertising signal with respect to the first advertising signal may include data on a type of service (e.g., media service or voice service) provided based on the packet received from the first external electronic device  101  through the first communication link  210 . For example, the information further included in the second advertising signal with respect to the first advertising signal may include data on the amount of resource of the first external electronic device  101  consumed to process the packet received from the first external electronic device  101  through the first communication link  210 . However, it is not limited thereto. According to embodiments, the processor  320  may transmit the first advertising signal after establishing the first communication link  210 . 
     In an embodiment, while the first communication link  210  is maintained, the processor  320  may receive, from the second external electronic device  202 , another connection request signal including information indicating time resources to be used to receive the initial packet transmitted from the second external electronic device  202  based on the second advertising signal (or the first advertising signal) and to be transmitted from the second external electronic device  202 . The processor  320  may compare the time resources indicated by the information in the other connection request signal with the time resources used for the first communication link  210  based on receiving the other connection request signal. For example, the processor  320  may identify a size of a window transmitting the initial packet indicated by the information in the other connection request signal and an initiating timing of the window, and compare time resources identified based on the size of the window and the initiating timing of the window with the time resources used for the first communication link  210 . As a result of the comparison, the processor  320  may establish the second communication link  220  by receiving the initial packet based on identifying that the time resources to be used to receive the initial packet do not overlap the time resources used for the first communication link  210 . As the result of the comparison, the processor  320  may refrain from establishing the second communication link  220  by bypassing or refraining from receiving the initial packet based on identifying that at least a portion of the time resources to be used to receive the initial packet overlap at least a portion of the time resources used for the first communication link  210 . 
     In an embodiment, while the first communication link  210  is maintained, the processor  320  may receive, from the second external electronic device  202 , another connection request signal including information indicating time resources to be used to receive the initial packet transmitted from the second external electronic device  202  based on the second advertising signal (or the first advertising signal) and to be transmitted from the second external electronic device  202 . The processor  320  may establish the second communication link  220  based on receiving the initial packet transmitted from the second external electronic device  202  based on the time resources indicated by the information in the other connection request signal. The processor  320  may identify the time resources used for the second communication link  220  while establishing the second communication link  220  or after establishing the second communication link  220 . For example, the processor  320  may identify the time resources by identifying the connection interval of the second communication link  220 . For example, when the second communication link  220  is the communication link for the CIS, the processor  320  may identify the time resources used for the second communication link  220  by identifying at least one of the anchor points of the CIS, the CIS ISO time interval, the number of sub-events in the CIS event caused within the CIS ISO time interval, or the length of each of the sub-events. The processor  320  may compare the time resources used for the second communication link  220  with the time resources used for the first communication link  210 . As a result of the comparison, the processor  320  may receive at least one packet transmitted from the second external electronic device  202  through the second communication link  220  based on identifying that the time resources used for the second communication link  220  do not overlap the time resources used for the first communication link  210 . As a result of the comparison, the processor  320  may bypass or refrain from receiving at least one packet transmitted from the second external electronic device  202  through the second communication link  220  based on identifying that at least a portion of the time resources used for the second communication link  220  overlap at least a portion of the time resources used for the first communication link  210 . 
     In an embodiment, as the result of the comparison, the processor  320  may transmit a request signal for adjusting the time resources used for the first communication link  210  to the first external electronic device  101  or transmit a request signal for adjusting the time resources used for the second communication link  220  to the second external electronic device  202  based on identifying that at least a portion of the time resources used for the second communication link  220  overlap at least a portion of the time resources used for the first communication link  210 . For example, referring to  FIGS.  5 A and  5 B , within the time interval  527 , the processor  320  may transmit the request signal for changing (or adjusting) the anchor point  522  of the second CIS to the anchor point  572  of the second CIS to the second external electronic device  202  based on identifying that at least a portion of the time resources used for the first communication link  210  overlap with at least a portion of the time resources used for the second communication link  220 . Based on the transmitting of the request signal, the time resources used for the first communication link  210  may not overlap the time resources used for the second communication link  220 . 
     For example, as the result of the comparison, in response to identifying that at least a portion of the time resources used for the second communication link  220  overlap at least a portion of the time resources used for the first communication link  210 , the processor  320  may identify a type of the first service provided based on at least one packet received from the first external electronic device  101  through the first communication link  210  and a type of the second service provided based on at least one packet received from the second external electronic device  202  through the second communication link  220 , and identify the priority of the first service based on the type of the first service and identify the priority of the second service based on the type of the second service. The processor  320  may transmit the request signal to the second external electronic device  202  based on identifying that the priority of the first service is higher than or equal to the priority of the second service, and transmit the request signal to the first external electronic device  101  based on identifying that the priority of the first service is lower than the priority of the second service. For example, the request signal transmitted to the second external electronic device  202  may include data on the time resources used for the first communication link  210  or data on time resources that do not overlap the time resources used for the first communication link  210 . For example, the request signal transmitted to the first external electronic device  101  may include data on the time resources used for the second communication link  220  or data on time resources that do not overlap the time resources used for the second communication link  220 . However, it is not limited thereto. 
     For another example, as the result of the comparison, in response to identifying that at least a portion of the time resources used for the second communication link  220  overlap at least a portion of the time resources used for the first communication link  210 , the processor  320  may compare the amount of first resources (or amount of load) of the first external electronic device  101  consumed to process at least one packet received from the first external electronic device  101  through the first communication link  210 , with the amount of the second resources of the first external electronic device  101  consumed to process at least one packet received from the second external electronic device  202  through the second communication link  220 . The processor  320  may transmit the request signal to the second external electronic device  202  based on identifying that the amount of the first resources is greater than or equal to the amount of the second resources, and transmit the request signal to the first external electronic device  101  based on identifying that the amount of the first resources is less than the amount of the second resources. For example, the request signal transmitted to the second external electronic device  202  may include data on the time resources used for the first communication link  210  or data on time resources that do not overlap the time resources used for the first communication link  210 . For example, the request signal transmitted to the first external electronic device  101  may include data on the time resources used for the second communication link  220  or data on time resources that do not overlap the time resources used for the second communication link  220 . However, it is not limited thereto. 
     For another example, as the result of the comparison, in response to identifying that at least a portion of the time resources used for the second communication link  220  overlap at least a portion of the time resources used for the first communication link  210 , the processor  320  may compare a distance between the first external electronic device  101  and the electronic device  201  with a distance between the second external electronic device  202  and the electronic device  201 . The processor  320  may transmit the request signal to the second external electronic device  202  based on identifying that the distance between the first external electronic device  101  and the electronic device  201  is shorter than or equal to the distance between the second external electronic device  202  and the electronic device  201 , and transmit the request signal to the first external electronic device  101  based on identifying that the distance between the first external electronic device  101  and the electronic device  201  is greater than the distance between the second external electronic device  202  and the electronic device  201 . For example, the request signal transmitted to the second external electronic device  202  may include data on the time resources used for the first communication link  210  or data on time resources that do not overlap the time resources used for the first communication link  210 . For example, the request signal transmitted to the first external electronic device  101  may include data on the time resources used for the second communication link  220  or data on time resources that do not overlap the time resources used for the second communication link  220 . However, it is not limited thereto. 
     For another example, as the result of the comparison, in response to identifying that at least a portion of the time resources used for the second communication link  220  overlap at least a portion of the time resources used for the first communication link  210 , the processor  320  may compare the quality of the first communication link  210  with the quality of the second communication link  220 . The processor  320  may transmit the request signal to the second external electronic device  202  based on identifying that the quality of the first communication link  210  is better than or equal to the quality of the second communication link  220 , and transmit the request signal to the first external electronic device  101  based on identifying that the quality of the first communication link  210  is worse than the quality of the second communication link  220 . For example, the request signal transmitted to the second external electronic device  202  may include data on the time resources used for the first communication link  210  or data on time resources that do not overlap the time resources used for the first communication link  210 . For example, the request signal transmitted to the first external electronic device  101  may include data on the time resources used for the second communication link  220  or data on time resources that do not overlap the time resources used for the second communication link  220 . However, it is not limited thereto. In an embodiment, the processor  320  may establish the first communication link  210 , transmit the first advertising signal while the first communication link  210  is maintained, receive, from the second external electronic device  202 , a connection request signal including information indicating time resources to be used to receive the initial packet to be transmitted from the second external electronic device  202  based on the first advertising signal, and compare time resources indicated by the information with time resources used for the first communication link  210 . As the result of the comparison, the processor  320  may establish the second communication link  220  by receiving the initial packet from the second external electronic device  202  based on identifying that the time resources indicated by the information do not overlap the time resources used for the first communication link  210 . As the result of the comparison, processor  320  may bypass or refrain from establishing the second communication link  220  by bypassing or refraining from receiving the initial packet from the second external electronic device  202  based on identifying that at least a portion of the time resources indicated by the information overlap at least a portion of the time resources used for the first communication link  210 . 
     In an embodiment, the processor  320  may establish the first communication link  210 , transmit the first advertising signal while the first communication link  210  is maintained, receive, from the second external electronic device  202 , the connection request signal including information indicating time resources to be used to receive the initial packet to be transmitted from the second external electronic device  202  based on the first advertising signal, and establish the second communication link  220  by receiving the initial packet transmitted based on the time resources indicated by the information from the second external electronic device  202 . The processor  320  may compare time resources used for the first communication link  210  with time resources used for the second communication link  220  while the first communication link  210  and the second communication link  220  are maintained. The processor  320  may receive, as the result of the comparison, as illustrated in  FIG.  5 B , at least one packet transmitted from the second external electronic device  202  through the second communication link  220  based on identifying that the time resources used for the first communication link  210  do not overlap the time resources used for the second communication link  220 , and bypass or refrain from receiving the at least one packet based on identifying that at least a portion of the time resources used for the first communication link  210  overlap at least a portion of the time resources used for the second communication link  220 , as the result of the comparison, as illustrated in  FIG.  5 A . For example, referring to  FIG.  5 A , the processor  320  may bypass or refrain from receiving the at least one packet received from the second external electronic device  202  in the time interval  524  or the time interval  527 . 
     In an embodiment, as a result of the comparison, the processor  320  may transmit a request signal for adjusting the time resources used for the first communication link  210  to the first external electronic device  101  or transmit a request signal for adjusting the time resources used for the second communication link  220  to the second external electronic device  202 , based on identifying that at least a portion of the time resources used for the first communication link  210  overlap at least a portion of the time resources used for the second communication link  220 . For example, referring to  FIGS.  5 A and  5 B , within the time interval  527 , the processor  320  may transmit the request signal for changing the anchor point  522  of the second CIS to the anchor point  572  of the second CIS to the second external electronic device  202 , based on identifying that at least a portion of the time resources used for the first communication link  210  overlap at least a portion of the time resources used for the second communication link  220 . As illustrated in  FIG.  5 B , the time resources used for the first communication link  210  may not overlap the time resources used for the second communication link  220  based on the transmitting of the request signal. In an embodiment, the request signal may be transmitted at a timing when the electronic device  201  performs a service through the second communication link  220 . 
       FIG.  6    is a flowchart illustrating a method of transmitting a request signal for adjusting time resources, according to an embodiment. This method may be executed by the electronic device  201  illustrated in  FIG.  2   , the electronic device  201  illustrated in  FIG.  3   , or the processor  320  of the electronic device  201 . 
     Referring to  FIG.  6   , in operation  602 , the processor  320  may identify a second communication link  220  with a second external electronic device (e.g., a second external electronic device  202 ) operating as a second master device with respect to the electronic device  201 , while the first communication link  210  with the first external electronic device (e.g., the first external electronic device  101 ) operating as the first master device is maintained with respect to the electronic device  201 . For example, the processor  320  may identify the second communication link  220  by establishing the second communication link  220  with the second external electronic device  202 . For another example, the processor  320  may identify the second communication link  220 , based on the connection request signal including information indicating time resources to be used to receive the initial packet transmitted from the second external electronic device  202  and to be transmitted from the second external electronic device  202  based on an advertising signal (e.g., the first advertising signal or the second advertising signal) broadcasted from the electronic device  201  before establishing the second communication link  220  with the second external electronic device  202 . However, it is not limited thereto. 
     In operation  604 , the processor  320  may identify whether at least a portion of the first time resources used for the first communication link  210  overlap at least a portion of the second time resources used for or to be used for the second communication link  220 . For example, the processor  320  may identify whether at least a portion of the first time resources overlap at least a portion of the second time resources, by identifying the second time resources based on establishing the second communication link  220  and comparing the first time resources with the second time resources. For another example, the processor  320  may identify the second time resources to be used for the second communication link  220  based on the connection request signal before establishing the second communication link  220 , and identify whether at least a portion of the first time resources overlaps at least a portion of the second time resources. However, it is not limited thereto. 
     In an embodiment, the processor  320  may identify whether at least a portion of the first time resources overlap at least a portion of the second time resources by identifying the first time resources and the second time resources by using methods defined through the description of  FIGS.  3  to  5 B , and comparing the identified first time resources with the identified second time resources. The processor  320  may execute operation  606  on a condition that at least a portion of the first time resources overlap at least a portion of the second time resources, otherwise the processor  320  executes operation  608 . 
     In operation  606 , the processor  320  may transmit a first request signal for adjusting the first time resources to the first external electronic device  101  or transmit a second request signal for adjusting the second time resources to the second external electronic device  202  based on identifying that at least a portion of the first time resources overlap at least a portion of the second time resources. For example, in response to identifying that at least a portion of the first time resources overlap at least a portion of the second time resources, the processor  320  may transmit the first request signal to the first external electronic device  101  or transmit the second request signal to the second external electronic device  202 , based on at least one of a state of the electronic device  201 , a state of the first external electronic device  101 , a state of the second external electronic device  202 , a state of the packet transmitted from the first external electronic device  101 , or a state of the packet transmitted from the second external electronic device  202 . 
     In an embodiment, the processor  320  may identify whether to transmit the first request signal or transmit the second request signal, based on the type of the first service provided by the first external electronic device  101  and the type of the second service provided by the second external electronic device  202 . For example, when the priority of the first service is higher than the priority of the second service, the second request signal among the first request signal and the second request signal may be transmitted from the electronic device  201  to the second external electronic device  202 . For another example, when the priority of the first service is equal to or lower than the priority of the second service, the first request signal among the first request signal and the second request signal may be transmitted from the electronic device  201  to the first external electronic device  101 . In exemplary embodiments, the priority associated with each type of service may be specified by a user to the electronic device and stored in a user profile. For example, a user may assign a highest priority level to voice call service type, a second priority level to alerts and/or notifications service type, and a third, or lowest, priority level to a music service type. 
     In an embodiment, the processor  320  may identify whether to transmit the first request signal or transmit the second request signal, based on the amount of first resources of the electronic device  201  consumed to process at least one packet received from the first external electronic device  101  and the amount of second resources of the electronic device  201  consumed to process at least one packet received from the second external electronic device  202 . For example, when the amount of the first resources is greater than the amount of the second resources, the second request signal among the first request signal and the second request signal may be transmitted from the electronic device  201  to the second external electronic device  202 . For another example, when the amount of the first resources is equal to or less than the amount of the second resources, the first request signal among the first request signal and the second request signal may be transmitted from the electronic device  201  to the first external electronic device  101 . 
     In an embodiment, the processor  320  may identify whether to transmit the first request signal or transmit the second request signal based on the quality of the first communication link  210  and the quality of the second communication link  220 . For example, when the quality of the first communication link  210  is better than the quality of the second communication link  220 , the second request signal among the first request signal and the second request signal may be transmitted from the electronic device  201  to the second external electronic device  202 . For another example, when the quality of the first communication link  210  is equal to or worse than the quality of the second communication link  220 , the first request signal among the first request signal and the second request signal may be transmitted from the electronic device  201  to the first external electronic device  101 . 
     In an embodiment, a timing at which the first request signal or the second request signal is transmitted may be variously defined. For example, the first request signal or the second request signal may be transmitted in response to establishing the second communication link  220 . For another example, the first request signal or the second request signal may be transmitted in response to initiating a service through the second communication link  220  after establishing the second communication link  220 . However, it is not limited thereto. 
     In operation  608 , the processor  320  may maintain the first communication link  210  and the second communication link  220  based on identifying that the first time resources do not overlap the second time resources. For example, without the adjustment of the first time resources or the second time resources, the processor  320  may receive at least one packet from the first external electronic device  101  through the first communication link  210  and at least one packet from the second external electronic device  202  through the second communication link  220 , since the fact that first time resources and the second time resources do not overlap each other may mean that the reception quality of at least one packet transmitted from the first external electronic device  101  through the first communication link  210  is not reduced by receiving at least one packet transmitted from the second external electronic device  202  through the second communication link  220 . 
     As described above, when at least a portion of the connection interval of the first communication link  210  overlap at least a portion of the connection interval of the second communication link  220 , the electronic device  201  may enhance the quality of communication with the first external electronic device  101  and communication with the second external electronic device  202 , by transmitting a request signal for moving (or adjusting) the connection interval of the first communication link  210  or moving (or adjusting) the connection interval of the second communication link  220  to the first external electronic device  101  or the second external electronic device  202 . 
       FIG.  7    is a flowchart illustrating a method of identifying whether to establish a second communication link, according to an embodiment. This method may be executed by the electronic device  201  illustrated in  FIG.  2   , the electronic device  201  illustrated in  FIG.  3   , or the processor  320  of the electronic device  201 . 
     Referring to  FIG.  7   , in operation  702 , the processor  320  may establish a first communication link (e.g., a first communication link  210 ) between the first external electronic device (e.g., a first external electronic device  101 ) and the electronic device  201 . 
     In operation  704 , the processor  320  may receive, from the second external electronic device, a connection request signal including information indicating first time resources to be used to receive the initial packet transmitted from the second external electronic device (e.g., the second external electronic device  202 ) and to be transmitted from the second external electronic device, based on the advertising signal (e.g., the first advertising signal defined by the description of  FIG.  3   ) broadcasted from the electronic device  201  while the first communication link  210  is maintained. In operation  706 , the processor  320  may identify whether the first time resources overlap the second time resources for at least one packet received from the first external electronic device through the first communication link  210  based on receiving the connection request signal. The processor  320  may execute operation  710  on a condition that at least a portion of the first time resources overlap at least a portion of the second time resources, otherwise execute operation  708 . In operation  708 , the processor  320  may establish a second communication link (e.g., a second communication link  220 ) between the second external electronic device  202  and the electronic device  201  based on identifying that the first time resources do not overlap the second time resources, by receiving the initial packet based on the first time resources. For example, the second communication link  220  may be a communication link distinguished from the first communication link  210 . In an embodiment, the second communication link  220  may be used to receive a packet for providing a service distinguished from a service provided through a packet received through the first communication link  210 . For example, since the connection interval of the second communication link  220  may not overlap the connection interval of the first communication link  210 , the processor  320  may establish the second communication link  220 . 
     In operation  710 , the processor  320  may refrain from establishing the second communication link  220  by bypassing or refraining from receiving the initial packet based on the first time resources, based on identifying that at least a portion of the first time resources overlap at least a portion of the second time resources. For example, the processor  320  may refrain from establishing the second communication link  220 , since the fact that at least a portion of the first time resources overlap at least a portion of the second time resources may mean that at least a portion of the connection interval of the first communication link  210  overlap at least a portion of the connection interval of the second communication link  220 . 
     Although operation  710  of  FIG.  7    illustrates an example of refraining from establishing the second communication link  220 , the processor  320  may establish the second communication link  220  and release the first communication link  210 . For example, when the priority of a packet transmitted through the first communication link  210  is lower than the priority of the packet transmitted through the second communication link  220 , the processor  320  may release the first communication link  210  and establish the second communication link  220 . 
     As described above, before establishing the second communication link  220 , the electronic device  201  may identify a possibility that the connection interval of the second communication link  220  and the connection interval of the first communication link  210  overlap each other, and determine whether to establish the second communication link  220  based on the identification. The electronic device  201  may provide an enhanced service through such a decision.  FIG.  8    is a flowchart illustrating a method of identifying whether to receive at least one packet received through a second communication link after establishing a second communication link, according to an embodiment. This method may be executed by the electronic device  201  illustrated in  FIG.  2   , the electronic device  201  illustrated in  FIG.  3   , or the processor  320  of the electronic device  201 . 
     Referring to  FIG.  8   , in operation  802 , the processor  320  may establish a first communication link (e.g., a first communication link  210 ) between the first external electronic device (e.g., a first external electronic device  101 ) and the electronic device  201 . 
     In operation  804 , the processor  320  may receive, from the second external electronic device, a connection request signal including information indicating first time resources to be used to receive the initial packet transmitted from the second external electronic device (e.g., the second external electronic device  202 ) and to be transmitted from the second external electronic device, based on the advertising signal (e.g., the first advertising signal defined by the description of  FIG.  3   ) broadcasted from the electronic device  201  while the first communication link  210  is maintained. 
     In operation  806 , the processor  320  may establish a second communication link (e.g., a second communication link  220 ) between the second external electronic device  202  and the electronic device  201  based on receiving the initial packet from the second external electronic device  202  based on the first time resources. 
     In operation  808 , the processor  320  may identify whether the second time resources used for the second communication link  220  overlap the third time resources used for the first communication link  210  based on establishing the second communication link  220 . For example, the processor  320  may execute operation  812  on a condition that at least a portion of the second time resources overlap at least a portion of the third time resources, otherwise execute operation  810 . 
     In operation  810 , the processor  320  may receive at least one packet transmitted from the second external electronic device  202  through the second communication link  220 , based on identifying that the second time resources do not overlap the third time resources. For example, since the fact that the second time resources do not overlap the third time resources may mean that the reception quality of at least one packet transmitted from the first external electronic device  101  through the first communication link  210  is not reduced by receiving at least one packet transmitted through the second communication link  220  from the second external electronic device  202 , the processor  320  may receive at least one packet transmitted from the second external electronic device  202  through the second communication link  220 . 
     In operation  812 , the processor  320  may bypass receiving the at least one packet transmitted from the second external electronic device  202  through the second communication link  220  based on identifying that at least a portion of the second time resources overlap at least a portion of the third time resources. For example, since the fact that at least a portion of the second time resources overlap at least a portion of the third time resources may mean that reception quality of at least one packet transmitted from the first external electronic device  101  through the first communication link  210  is reduced by receiving at least one packet transmitted from the second external electronic device  202  through the second communication link  220 , the processor  320  may refrain from receiving the at least one packet transmitted from the second external electronic device  202  through the second communication link  220 . 
     Although operation  812  of  FIG.  8    illustrates an operation of bypassing receiving the at least one packet from the second external electronic device  202  through the second communication link  220  when at least a portion of the second time resources overlaps at least a portion of the third time resources, this operation may be replaced by another operation. For example, when at least one packet is not received from the first external electronic device  101  in a portion of the third time resources even when at least a portion of the second time resources overlap at least a portion of the third time resources, the processor  320  may receive the at least one packet from the second external electronic device  202  through the second communication link  220  based on at least a portion of the third time resources. 
     As described above, the electronic device  201  may prevent the quality of the first communication link  210  from being reduced by the second communication link  220  by determining whether to receive at least one packet received through the second communication link  220  after establishing the second communication link  220 . Since determining whether to receive the at least one packet through the second communication link  220  after establishing the second communication link  220 , the electronic device  201  may adaptively control at least one of reception through the first communication link  210  or reception through the second communication link  220  according to a state of the first communication link  210  and a state of the second communication link  220 . 
       FIG.  9    is a flowchart illustrating a method of transmitting a second advertising signal different from a first advertising signal, according to an embodiment. This method may be executed by the electronic device  201  illustrated in  FIG.  2   , the electronic device  201  illustrated in  FIG.  3   , or the processor  320  of the electronic device  201 . 
     Referring to  FIG.  9   , in operation  902 , the processor  320  may broadcast a first advertising signal. For example, the processor  320  may periodically broadcast the first advertising signal so that the external electronic device may scan the electronic device  201 . 
     In operation  904 , the processor  320  may receive, from the external electronic device, a connection request signal including information indicating first time resources to be used to receive the initial packet transmitted from the external electronic device (e.g., the first external electronic device  101 ) based on the first advertising signal and to be transmitted from the external electronic device. For example, the connection request signal may include data on the size of the window for receiving the initial packet and data on the initiating timing of the window in the information. In operation  906 , the processor  320  may establish a communication link (e.g., a first communication link  210 ) between the external electronic device and the electronic device  201  based on receiving the initial packet transmitted based on the first time resources from the external electronic device. For example, the communication link may be used for a packet transmitted from the external electronic device to the electronic device  201 . For example, the communication link may be a communication link for an ACL or a communication link for a CIS. For example, when the communication link is a communication link for the CIS, a CIS event may be scheduled within a connection interval of the communication link. The CIS event may be used to provide the packet to the electronic device  201 . In an embodiment, the CIS event may include a plurality of sub-events. In an embodiment, a connected isochronous group (CIG) event including the CIS event and other CIS events may be scheduled within the connection interval of the communication link. However, it is not limited thereto. 
     In operation  908 , the processor  320  may broadcast a second advertising signal indicating second time resources used for the communication link based on establishing the communication link. For example, the second advertising signal may be the second advertising signal defined through the description of  FIG.  3   . For example, the second advertising signal may be a signal periodically broadcasted from the electronic device  201  while the communication link is maintained. For example, the processor  320  may broadcast the second advertising signal among the first advertising signal and the second advertising signal while the communication link is maintained, and broadcast the first advertising signal among the first advertising signal and the second advertising signal based on identifying that the communication link is released. However, it is not limited thereto. 
     As described above, the electronic device  201  may broadcast the second advertising signal distinguished from the first advertising signal on a condition that a communication link between the electronic device  201  and the external electronic device is established. Since the second advertising signal includes information on the established communication link, different from the first advertising signal, another external electronic device receiving the second advertising signal may allocate time resources that do not overlap with time resources used for the first communication link  210  to the electronic device  201 . In other words, the electronic device  201  may enhance the quality of communication with each of a plurality of external electronic devices by broadcasting the second advertising signal. 
       FIG.  10    is a flowchart illustrating a method of identifying whether to establish a communication link with another external electronic device based on a connection request signal received from another external electronic device after broadcasting a second advertising signal according to an embodiment. This method may be executed by the electronic device  201  illustrated in  FIG.  2   , the electronic device  201  illustrated in  FIG.  3   , or the processor  320  of the electronic device  201 . 
     Referring to  FIG.  10   , in operation  1002 , the processor  320  may broadcast the second advertising signal. For example, operation  1002  may correspond to operation  908  of  FIG.  9   . In operation  1004 , the processor  320  may receive, from the second external electronic device, another connection request signal including information indicating third time resources to be used to receive the initial packet to be transmitted from another external electronic device (e.g., a second external electronic device  202 ), hereinafter, a second external electronic device) distinguished from the external electronic device (e.g., the first external electronic device  101 , hereinafter, the first external electronic device) defined through the descriptions of  FIG.  9    based on the second advertising signal and to be transmitted from the second external electronic device. For example, the other connection request signal may include data on the size of the window for receiving the initial packet and data on the initial timing of the window in the information. 
     In operation  1006 , the processor  320  may identify whether the third time resources overlap the second time resources (e.g., the second time resources defined through operation  908  of  FIG.  9   ) used for a communication link (e.g., the first communication link  210 ) between the first external electronic device and the electronic device  201 . For example, the processor  320  may execute operation  1010  on a condition that at least a portion of the third time resources overlap at least a portion of the second time resources, otherwise execute operation  1008 . 
     In operation  1008 , the processor  320  may establish another communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device  201  by receiving the initial packet transmitted based on the third time resources from the second external electronic device, based on identifying that the third time resources do not overlap the second time resources. For example, the other communication link may be used to obtain data having an attribute distinguished from the attribute of data transmitted to the electronic device  201  through the communication link from the second external electronic device. For example, the time resources used for the other communication link may be distinguished from the second time resources used for the communication link. 
     In operation  1010 , processor  320  may refrain from establishing the other communication link by bypassing receiving the initial packet transmitted from the second external electronic device based on the third time resources, based on identifying that at least a portion of the third time resources overlap at least a portion of the second time resources. For example, the processor  320  may estimate, through operation  1006 , that at least a portion of time resources to be used for the other communication link overlap at least a portion of the second time resources used for the communication link, and refrain from establishing the other communication link based on the estimation. 
     As described above, while the communication link (e.g., the first communication link  210 ) between the electronic device  201  and the first external electronic device is maintained, the electronic device  201  may compare time resources used for the other communication link (e.g., the second communication link  220 ) between the electronic device  201  and the second external electronic device with time resources used for the communication link. The electronic device  201  may prevent the quality of the maintained communication link from decreasing through the comparison. In other words, the electronic device  201  may maintain the quality of the communication link by blocking the second external electronic device capable of reducing the quality of the maintained communication link from connecting to the electronic device  201  in despite of the second advertising signal. 
       FIG.  11    is a flowchart illustrating a method of identifying whether to receive at least one packet through an established communication link after establishing the communication link between a second external electronic device and an electronic device based on a second advertising signal. This method may be executed by the electronic device  201  illustrated in  FIG.  2   , the electronic device  201  illustrated in  FIG.  3   , or the processor  320  of the electronic device  201 . Referring to  FIG.  11   , in operation  1102 , the processor  320  may broadcast the second advertising signal. For example, operation  1102  may correspond to operation  908  of  FIG.  9   . However, it is not limited thereto. 
     In operation  1104 , the processor  320  may receive another connection request signal including information indicating third time resources to be used to receive the initial packet transmitted from the second external electronic device based on the first advertising signal or the second advertising signal and to be transmitted from the second external electronic device. For example, operation  1104  may correspond to operation  1004  of  FIG.  10   . 
     In operation  1106 , the processor  320  may establish another communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device  201  based on receiving the initial packet transmitted from the second external electronic device based on the third time resources. 
     In operation  1108 , after establishing the other communication link, the processor  320  may identify whether fourth time resources used for the other communication link overlap the second time resources used for the communication link (e.g., the first communication link  210 ) between the first external electronic device and the electronic device  201 . For example, the processor  320  may execute operation  1112  on a condition that at least a portion of the fourth time resources overlap with at least a portion of the second time resources, otherwise execute operation  1110 . 
     In operation  1110 , the processor  320  may receive the at least one packet transmitted through the other communication link from the second external electronic device based on identifying that the fourth time resources do not overlap the second time resources. For example, when the fourth time resources are distinguished from the second time resources, since reception performance of at least one packet transmitted from the first external electronic device for the communication link is not reduced by reception of the at least one packet transmitted from the second external electronic device through the other communication link, the processor  320  may receive the at least one packet transmitted through the other communication link from the second external electronic device. 
     In operation  1112 , the processor  320  may bypass receiving the at least one packet transmitted from the second external electronic device through the other communication link based on identifying that at least a portion of the fourth time resources overlap at least a portion of the second time resources. For example, when at least a portion of the fourth time resources overlap at least a portion of the second time resources, since reception performance of at least one packet transmitted from the first external electronic device for the communication link may be reduced by reception of the at least one packet transmitted from the second external electronic device through the other communication link, the processor  320  may bypass receiving the at least one packet transmitted through the other communication link from the second external electronic device. In an embodiment, when the priority of the at least one packet transmitted through the other communication link is higher than the priority of the at least one packet transmitted through the communication link, the processor  320  may bypass receiving the at least one packet transmitted through the communication link from the first external electronic device. 
     As described above, the electronic device  201  may maintain the quality of the communication link by blocking the reception of at least one packet transmitted through the other communication link from the second external electronic device, after establishing another communication link (e.g., second communication link  220 ) having a connection interval overlapping the connection interval of the communication link (e.g., first communication link  210 ) in despite of the second advertising signal. 
       FIG.  12    is a flowchart illustrating a method of transmitting a request signal for adjusting time resources to a first external electronic device or a second external electronic device after establishing a communication link between a second external electronic device and an electronic device based on a second advertising signal. This method may be executed by the electronic device  201  illustrated in  FIG.  2   , the electronic device  201  illustrated in  FIG.  3   , or the processor  320  of the electronic device  201 . 
     Referring to  FIG.  12   , in operation  1202 , the processor  320  may broadcast the second advertising signal. For example, operation  1202  may correspond to operation  908  of  FIG.  9   . In operation  1204 , the processor  320  may receive another connection request signal including information indicating third time resources to be used to receive the initial packet transmitted from the second external electronic device based on the first advertising signal or the second advertising signal and to be transmitted from the second external electronic device. For example, operation  1204  may correspond to operation  1104  of  FIG.  11   . 
     In operation  1206 , the processor  320  may establish another communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device  201  based on receiving the initial packet transmitted from the second external electronic device based on the third time resources. 
     In operation  1208 , after establishing the other communication link, the processor  320  may identify whether the fourth time resources used for the other communication link overlap the second time resources used for the communication link between the first external electronic device and the electronic device  201 . For example, the processor  320  may execute operation  1212  on a condition that at least a portion of the fourth time resources overlap at least a portion of the second time resources, otherwise operation  1210 . 
     In operation  1210 , the processor  320  may receive at least one packet transmitted from the second external electronic device through the other communication link based on identifying that the fourth time resources do not overlap the second time resources. For example, when the fourth time resources are distinguished from the second time resources, since reception performance of at least one packet transmitted from the first external electronic device for the communication link is not reduced by reception of the at least one packet transmitted from the second external electronic device through the other communication link, the processor  320  may receive the at least one packet transmitted through the other communication link from the second external electronic device. 
     In operation  1212 , the processor  320  may transmit a request signal for adjusting the second time resources to the first external electronic device or transmit a request signal for adjusting the fourth time resources to the second external electronic device based on identifying that at least a portion of the fourth time resources overlap at least a portion of the second time resources. For example, in response to identifying that at least a portion of the fourth time resources overlap at least a portion of the second time resources, the processor  320  may identify at least one of an attribute of a packet received through the communication link, an attribute of a packet received through the other communication link, a priority of a service provided based on a packet received through the communication link, a priority of a service provided based on a packet received through the other communication link, a type of a service provided based on a packet received through the communication link and a type of a service provided based on a packet received through the other communication link, an amount of load required to process a packet received through the communication link and an amount of load required to process a packet received through the other communication link, a distance between the electronic device and the first external electronic device, a distance between the electronic device and the second external electronic device, a quality of the communication link or a quality of the other communication link, and transmit, based on the identification, the request signal for adjusting the second time resources to the first external electronic device, or transmit the request signal for adjusting the fourth time resources to the second external electronic device. 
     As described above, the electronic device  201  may transmit a request signal for adjusting time resources used for the communication link or adjusting time resources used for the other communication link based on identifying that at least a portion of time resources used for the communication link overlap at least a portion of time resources used for the other communication link despite the second advertising signal. The electronic device  201  may enhance the quality of the communication link and the quality of other communication links by transmitting the request signal so that the time resources used for the communication link do not overlap the time resources used for the other communication link. 
       FIG.  13    illustrates a signal flow caused by an electronic device, a first external electronic device, and a second external electronic device to adjust time resources for communication with the electronic device, according to an embodiment. This signal flow may be caused by the first external electronic device  101 , the electronic device  201 , and the second external electronic device  202  illustrated in  FIG.  2   . 
     Referring to  FIG.  13   , in operation  1302 , the electronic device  201  may establish a first communication link (e.g., a first communication link  210 ) between the electronic device  201  and the first external electronic device  101 . In operation  1304 , the electronic device  201  may establish a second communication link (e.g., a second communication link  220 ) between the electronic device  201  and the second external electronic device  202 . 
     In operation  1306 , the electronic device  201  may identify that second time resources used for the second communication link  220  overlap first time resources used for the first communication link  210  based on establishing the second communication link  220 . 
     In operation  1308 , the electronic device  201  may transmit a request signal requesting the first external electronic device  101  to adjust the second time resources based on the identification. The first external electronic device  101  may receive the request signal from the electronic device  201 . 
     In operation  1310 , the first external electronic device  101  may transmit information on the first time resources used for the first communication link  210  between the electronic device  201  and the first external electronic device  101  to the second external electronic device  202  based on receiving the request signal. For example, in response to receiving the request signal, the first external electronic device  101  may identify the first time resources allocated for at least one packet transmitted to the electronic device  201  and transmit information on the first time resources to the second external electronic device  202 . The second external electronic device  202  may receive information on the first time resources from the first external electronic device  101 . Although not illustrated in  FIG.  13   , when a communication link (e.g., a third communication link  230 ) between the first external electronic device  101  and the second external electronic device  202  is not established, the first external electronic device  101  may establish the communication link between the first external electronic device  101  and the second external electronic device  202 , based on receiving the request signal, and transmit information on the first time resources to the second external electronic device  202  through the established communication link. In operation  1312 , the second external electronic device  202  may adjust the second time resources so that the second time resources do not overlap the first time resources based on receiving information on the first time resources. 
     In operation  1314 , the second external electronic device  202  may transmit information on the adjusted second time resources to the first external electronic device  101 . For example, the second external electronic device  202  may transmit information on the adjusted second time resources to the first external electronic device  101  to transmit information on the adjusted second time resources to the electronic device  201 . The first external electronic device  101  may receive information on the adjusted second time resources from the second external electronic device  202 . In operation  1316 , the first external electronic device  101  may transmit information on the adjusted second time resources to the electronic device  201 . The electronic device  201  may receive information on the adjusted second time resources from the first external electronic device  101 . In an embodiment, information on the adjusted second time resources may be transmitted within the first time resources. However, it is not limited thereto. Meanwhile, after receiving information on the adjusted second time resources, the electronic device  201  may receive at least one packet from the second external electronic device  202  through the second communication link  220  in the adjusted second time resources. 
     In an embodiment, operation  1308  of  FIG.  13    may be replaced by an operation in which the electronic device  201  transmits the request signal to the second external electronic device  202 . In this case, the request signal may include information on the first time resources. The second external electronic device  202  receiving the request signal may adjust the second time resources based on the first time resources and transmit information on the adjusted second time resources to the electronic device  201  through the first external electronic device  101  or to the electronic device  201  directly. 
     In an embodiment, operations  1314  and  1316  of  FIG.  13    may be replaced by an operation in which the second external electronic device  202  directly transmits information on the adjusted second time resources to the electronic device  201 . In this case, the information on the adjusted second time resources may be transmitted from the second external electronic device  202  to the electronic device  201  based on time resources that do not overlap the first time resources. Meanwhile, although not illustrated in  FIG.  13   , while the first communication link  210  and the second communication link  220  established according to operation  1302  and operation  1304  are maintained, the first external electronic device  101  may identify that the second time resources overlap the first time resources based on the exchange of information with the second external electronic device  202 , instead of receiving the above request signal in operation  1308 . Based on the identifying, the first time resources or the second time resources may be adjusted so that the first time resources and the second time resources do not overlap each other. 
     According to an embodiment, the electronic device, the method, and the computer-readable storage medium can enhance the quality of communication with the first external electronic device and the quality of communication with the second external electronic device, by executing at least one operation to adjust the first time resources allocated from the first external electronic device and the second time resources allocated from the second external electronic device to not overlap. 
     As described above, according to an embodiment, an electronic device (e.g. electronic device  201 ) may comprise a communication circuitry (e.g., a communication circuit  390 ) for Bluetooth low energy (BLE), at least one memory (e.g., memory  330 ) configured to store instructions, and at least one processor (e.g. processor  320 ) operably coupled with the communication circuitry; wherein the at least one processor may be, when the instructions are executed, configured to, while a first communication link with a first external electronic device (e.g., a first communication link  210 ) operating as a first master device with respect to the electronic device (e.g., a first communication link  101 ) is maintained, identify a second communication link (e.g., a second communication link  220 ) with a second external electronic device (e.g., a second external electronic device  202 ) operating as a second master device with respect to the electronic device; identify whether at least a portion of first time resources used for the first communication link overlap with at least portion of second time resources used or to be used for the second communication link or not; and based on identifying that at least the portion of the first time resources overlap with at least the portion of the second time resources, transmit a first request signal for adjusting the first time resources to the first external electronic device or transmit a second request signal for adjusting the second time resources to the second external electronic device. 
     In an embodiment, the at least one processor may be, when the instructions are executed, configured to identify, based on type of a first service provided based on at least one packet received through the first communication link from the first external electronic device and type of a second service provided based on at least one packet received through the second communication link  220  from the second external electronic device, a priority of the first service and a priority of the second service; and transmit, based on a result of comparison between the priority of the first service and the priority of the second service, the first request signal to the first external electronic device or the second request signal to the second external electronic device. 
     In an embodiment, the at least one processor may be, when the instructions are executed, configured to compare, with amount of first resources of the electronic device consumed to process at least one packet received through the first communication link from the first external electronic device, amount of second resources of the electronic device consumed to process at least one packet through the second communication link from the second external electronic device; and transmit, based on a result of the comparison between the amount of the first resources and the amount of the second resources, the first request signal to the first external electronic device or the second request signal to the second external electronic device. 
     In an embodiment, each of the first communication link and the second communication link may comprise a communication link for asynchronous connection-less (ACL) or a communication link for connected isochronous stream (CIS). For example, each of the first time resources and the second time resources may be, when each of the first communication link and the second communication link is a communication link for the CIS, identified based on at least one of a CIS ISO time interval, a length of a CIS sub event, an anchor point of a CIS event, or number of CIS sub events. 
     In an embodiment, the at least one processor may be, when the instructions are executed, further configured to broadcast, while the first communication link is maintained before the second communication link is established, an advertising signal including information indicating the first time resources. 
     In an embodiment, the at least one processor may be, when the instructions are executed, further configured to, before the second communication link is established, receive, from the second external electronic device, a connection request signal that is transmitted based on an advertising signal from the second external electronic device, the connection request signal including information indicating third time resources to be used for receiving an initial packet to be transmitted from the second external electronic device; compare the third time resources with the first time resources; and according to a result of the comparison between the first time resources and the third time resource, establish the second communication link with the second external electronic device by receiving the initial packet from the second external electronic device based on the third time resources or refrain from establishing the second communication link by bypassing to receive the initial packet from the second external electronic device based on the third time resources. 
     In an embodiment, the at least one processor may be, when the instructions are executed, further configured to refrain, based on identifying that at least the portion of the first time resources overlap with at least the portion of the second time resources, from receiving at least one packet through the first communication link from the first external electronic device by using at least the portion of the first time resources overlapping with at least the portion of the second time resources or refrain from receiving at least one packet through the second communication link from the second external electronic device by using at least the portion of the second time resources overlapping with at least the portion of the first time resources, instead of transmitting the first request signal and the second request signal. 
     In an embodiment, the second time resources may be identified based on transmitWindowOffset and transmitWindowSize in information included in a connection request signal, the connection request signal received from the second external electronic device before the second communication link is established. 
     In an embodiment, the first request signal may include information for indicating the second time resources, and wherein the second request signal may include information for indicating the first time resources. 
     As described above, according to an embodiment, an electronic device (e.g. electronic device  201 ) may comprise a communication circuitry (e.g., a communication circuit  390 ) for Bluetooth low energy (BLE), at least one memory (e.g., memory  330 ) configured to store instructions, and at least one processor (e.g. processor  320 ) operably coupled with the communication circuitry; wherein the at least one processor may be, when the instructions are executed, configured to establish a first communication link (e.g., a first communication link  210 ) between a first external electronic device (e.g., a first external electronic device  101 ) and the electronic device; receive a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from a second external electronic device (e.g., a second external electronic device  202 ) based on an advertising signal broadcast from the electronic device while the first communication link is maintained and to be transmitted from the second external electronic device; compare the first time resources with second time resources for at least one packet received from the first external electronic device through the first communication link; establish a second communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device by receiving the initial packet transmitted from the second external electronic device based on the first time resources according to the result of the comparison; and refrain from establishing the second communication link by bypassing receiving the initial packet transmitted from the second external electronic device based on the first time resources. 
     In an embodiment, an electronic device (e.g. electronic device  201 ) may comprise a communication circuitry (e.g., a communication circuit  390 ) for Bluetooth low energy (BLE), at least one memory (e.g., memory  330 ) configured to store instructions, and at least one processor (e.g. processor  320 ) operably coupled with the communication circuitry; wherein the at least one processor may be, when the instructions are executed, configured to establish a first communication link (e.g., a first communication link  210 ) between a first external electronic device and the electronic device; receive a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from a second external electronic device based on an advertising signal broadcast from the electronic device while the first communication link is maintained and to be transmitted from the second external electronic device; establish a second communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device based on receiving the initial packet transmitted based on the first time resources from the second external electronic device; identify second time resources used for the second communication link; compare the second time resources with the third time resources used for the first communication link; and bypass receiving at least one packet after the initial packet transmitted from the second external electronic device through the second communication link or receiving the at least one packet transmitted from the second external electronic device through the other communication link according to the result of the comparison. 
     As described above, according to an embodiment, an electronic device (e.g. electronic device  201 ) may comprise a communication circuitry (e.g., a communication circuit  390 ) for Bluetooth low energy (BLE), at least one memory (e.g., memory  330 ) configured to store instructions, and at least one processor (e.g. processor  320 ) operably coupled with the communication circuitry; wherein the at least one processor may be, when the instructions are executed, configured to establish a first communication link (e.g., a first communication link  210 ) between a first external electronic device and the electronic device; receive a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from a second external electronic device based on an advertising signal broadcast from the electronic device while the first communication link is maintained and to be transmitted from the second external electronic device; establish a second communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device based on receiving the initial packet transmitted based on the first time resources from the second external electronic device; identify second time resources used for the second communication link; compare the second time resources with the third time resources used for the first communication link; and transmit a request signal for adjusting the second time resources to the second external electronic device or transmit a request signal for adjusting the third time resources to the first external electronic device based on the result of the comparison. 
     As described above, according to an embodiment, a method for operating an electronic device with a communication circuit for Bluetooth low energy (BLE) may include broadcasting the first advertising signal; receiving a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from an external electronic device (e.g., a first external electronic device  101 ) based on the first advertising signal and to be transmitted from the external electronic device; establishing a communication link between the external electronic device and the electronic device based on receiving the initial packet transmitted from the external electronic device based on the first time resources; and broadcasting a second advertising signal further including information indicating the second time resources used for the communication link with respect to the first advertising signal based on establishing the communication link. 
     As described above, according to an embodiment, a method for operating an electronic device with a communication circuit for Bluetooth low energy (BLE) may include establishing a first communication link (e.g., the first communication link  210 ) between the first external electronic device (e.g., the first external electronic device  101 ) and the electronic device; while the first communication link is maintained, receiving a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from a second external electronic device (e.g., a second external electronic device  202 ) based on an advertising signal broadcast from the electronic device and to be transmitted from the second external electronic device; comparing the first time resources with second time resources for at least one packet received from the first external electronic device through the first communication link; and refraining from establishing the second communication link by bypassing establishing a second communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device by receiving the initial packet transmitted from the second external electronic device based on the first time resources and receiving the initial packet transmitted from the second external electronic device based on the first time resources. 
     As described above, according to an embodiment, a method for operating an electronic device with a communication circuit for Bluetooth low energy (BLE) may include establishing a first communication link (e.g., a first communication link  210 ) between a first external electronic device and the electronic device; receiving a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from a second external electronic device based on an advertising signal broadcast from the electronic device while the first communication link is maintained and to be transmitted from the second external electronic device; establishing a second communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device based on receiving the initial packet transmitted based on the first time resources from the second external electronic device; identifying second time resources used for the second communication link; comparing the second time resources with the third time resources used for the first communication link; and bypassing receiving at least one packet after the initial packet transmitted from the second external electronic device through the second communication link or receiving the at least one packet transmitted from the second external electronic device through the other communication link according to the result of the comparison. 
     As described above, according to an embodiment, a method for operating an electronic device with a communication circuit for Bluetooth low energy (BLE) may include establishing a first communication link (e.g., a first communication link  210 ) between a first external electronic device and the electronic device; receiving a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from a second external electronic device based on an advertising signal broadcast from the electronic device while the first communication link is maintained and to be transmitted from the second external electronic device; establishing a second communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device based on receiving the initial packet transmitted based on the first time resources from the second external electronic device; identifying second time resources used for the second communication link; comparing the second time resources with the third time resources used for the first communication link; and transmitting a request signal for adjusting the second time resources to the second external electronic device or transmitting a request signal for adjusting the third time resources to the first external electronic device based on the result of the comparison. As described above, according to an embodiment, a non-transitory computer readable storage medium may store one or more programs, the one or more programs comprising instructions which, when executed by at least one processor of an electronic device with a communication circuitry for Bluetooth low energy (BLE), cause the electronic device to broadcast the first advertising signal; receive a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from an external electronic device (e.g., a first external electronic device  101 ) based on the first advertising signal and to be transmitted from the external electronic device; establish a communication link between the external electronic device and the electronic device based on receiving the initial packet transmitted from the external electronic device based on the first time resources; and broadcast a second advertising signal further including information indicating the second time resources used for the communication link with respect to the first advertising signal based on establishing the communication link. 
     As described above, according to an embodiment, a non-transitory computer readable storage medium may store one or more programs, the one or more programs comprising instructions which, when executed by at least one processor of an electronic device with a communication circuitry for Bluetooth low energy (BLE), cause the electronic device to establish a first communication link (e.g., the first communication link  210 ) between the first external electronic device (e.g., the first external electronic device  101 ) and the electronic device; while the first communication link is maintained, receive a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from a second external electronic device (e.g., a second external electronic device  202 ) based on an advertising signal broadcast from the electronic device and to be transmitted from the second external electronic device; compare the first time resources with second time resources for at least one packet received from the first external electronic device through the first communication link; and refrain from establishing the second communication link by bypassing establishing a second communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device by receiving the initial packet transmitted from the second external electronic device based on the first time resources and receiving the initial packet transmitted from the second external electronic device based on the first time resources. 
     As described above, according to an embodiment, a non-transitory computer readable storage medium may store one or more programs, the one or more programs comprising instructions which, when executed by at least one processor of an electronic device with a communication circuitry for Bluetooth low energy (BLE), cause the electronic device to establish a first communication link (e.g., a first communication link  210 ) between a first external electronic device and the electronic device; receive a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from a second external electronic device based on an advertising signal broadcast from the electronic device while the first communication link is maintained and to be transmitted from the second external electronic device; establish a second communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device based on receiving the initial packet transmitted based on the first time resources from the second external electronic device; identify second time resources used for the second communication link; compare the second time resources with the third time resources used for the first communication link; and bypass receiving at least one packet after the initial packet transmitted from the second external electronic device through the second communication link or receiving the at least one packet transmitted from the second external electronic device through the other communication link according to the result of the comparison. 
     As described above, according to an embodiment, a non-transitory computer readable storage medium may store one or more programs, the one or more programs comprising instructions which, when executed by at least one processor of an electronic device with a communication circuitry for Bluetooth low energy (BLE), cause the electronic device to establish a first communication link (e.g., a first communication link  210 ) between a first external electronic device and the electronic device; receive a connection request signal including information indicating the first time resources to be used to receive the initial packet transmitted from a second external electronic device based on an advertising signal broadcast from the electronic device while the first communication link is maintained and to be transmitted from the second external electronic device; establish a second communication link (e.g., a second communication link  220 ) between the second external electronic device and the electronic device based on receiving the initial packet transmitted based on the first time resources from the second external electronic device; identify second time resources used for the second communication link; compare the second time resources with the third time resources used for the first communication link; and transmit a request signal for adjusting the second time resources to the second external electronic device or transmit a request signal for adjusting the third time resources to the first external electronic device based on the result of the comparison. 
     The electronic device according to various embodiments may be one of various types of electronic devices. The electronic devices 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. According to an embodiment of the disclosure, the electronic devices are not limited to those described above. 
     It should be appreciated that various embodiments of the present disclosure and the terms used therein are not intended to limit the technological features set forth herein to particular embodiments and include various changes, equivalents, or replacements for a corresponding embodiment. With regard to the description of the drawings, similar reference numerals may be used to refer to similar or related elements. It is to be understood that a singular form of a noun corresponding to an item may include one or more of the things, unless the relevant context clearly indicates otherwise. As used herein, each of such phrases as “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B, or C”, “at least one of A, B, and C”, and “at least one of A, B, or C” may include any one of, or all possible combinations of the items enumerated together in a corresponding one of the phrases. As used herein, such terms as “1st” and “2nd”, or “first” and “second” may be used to simply distinguish a corresponding component from another, and does not limit the components in other aspect (e.g., importance or order). It is to be understood that if an element (e.g., a first element) is referred to, with or without the term “operatively” or “communicatively”, as “coupled with”, “coupled to”, “connected with”, or “connected to” another element (e.g., a second element), it means that the element may be coupled with the other element directly (e.g., wiredly), wirelessly, or via a third element. 
     As used herein, the term “module” may include a unit implemented in hardware, software, or firmware, and may interchangeably be used with other terms, for example, “logic”, “logic block”, “part”, or “circuitry”. A module may be a single integral component, or a minimum unit or part thereof, adapted to perform one or more functions. For example, according to an embodiment, the module may be implemented in a form of an application-specific integrated circuit (ASIC). 
     Various embodiments as set forth herein may be implemented as software (e.g., the program # 40 ) including one or more instructions that are stored in a storage medium (e.g., internal memory # 36  or external memory # 38 ) that is readable by a machine (e.g., the electronic device # 01 ). For example, a processor(e.g., the processor # 20 ) of the machine (e.g., the electronic device # 01 ) may invoke at least one of the one or more instructions stored in the storage medium, and execute it, with or without using one or more other components under the control of the processor. This allows the machine to be operated to perform at least one function according to the at least one instruction invoked. The one or more instructions may include a code generated by a compiler or a code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Wherein, the term “non-transitory” simply means that the storage medium is a tangible device, and does not include a signal (e.g., an electromagnetic wave), but this term does not differentiate between where data is semi-permanently stored in the storage medium and where the data is temporarily stored in the storage medium. 
     According to an embodiment, a method according to various embodiments of the disclosure may be included and provided in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or be distributed (e.g., downloaded or uploaded) online via an application store (e.g., PlayStore™), or between two user devices (e.g., smart phones) directly. If distributed online, at least part of the computer program product may be temporarily generated or at least temporarily stored in the machine-readable storage medium, such as memory of the manufacturers server, a server of the application store, or a relay server. 
     According to various embodiments, each component (e.g., a module or a program) of the above-described components may include a single entity or multiple entities. According to various embodiments, one or more of the above-described components may be omitted, or one or more other components may be added. Alternatively or additionally, a plurality of components (e.g., modules or programs) may be integrated into a single component. In such a case, according to various embodiments, the integrated component may still perform one or more functions of each of the plurality of components in the same or similar manner as they are performed by a corresponding one of the plurality of components before the integration. According to various embodiments, operations performed by the module, the program, or another component may be carried out sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order or omitted, or one or more other operations may be added.