WO2021085832A1

WO2021085832A1 - Electronic device for performing communication in neighbor awareness networking, and method for operating same

Info

Publication number: WO2021085832A1
Application number: PCT/KR2020/011976
Authority: WO
Inventors: 정부섭; 이순호
Original assignee: 삼성전자 주식회사
Priority date: 2019-10-30
Filing date: 2020-09-04
Publication date: 2021-05-06
Also published as: KR20210051274A

Abstract

An electronic device, according to various embodiments, comprises: a communication module; a processor operatively connected to the communication module; and at least one memory operatively connected to the processor. The at least one memory may store instructions that, when executed, cause the processor to: perform, through the communication module, neighbor awareness networking (NAN) synchronization with a plurality of external electronic devices; establish a first NAN data path (NDP) session with at least one first external electronic device from among the plurality of external electronic devices; transmit, through the first NDP session, first data to the at least one first external electronic device; store, on the basis of correspondence to a first condition, first NDP information on the first NDP session, pause the first NDP session, and establish a second NDP session with at least one second external electronic device from among the plurality of external electronic devices; transmit, through the second NDP session, second data to the at least one second external electronic device; store, on the basis of correspondence to a second condition, second NDP information on the second NDP session, pause the second NDP session, and resume, on the basis of the first NDP information, the first NDP session; and transmit, through the resumed first NDP session, third data to the at least one first external electronic device.

Description

Electronic device performing communication in neighbor aware networking and its operating method

Various embodiments relate to a method and apparatus for an electronic device to communicate with a plurality of external electronic devices in neighbor awareness networking (NAN).

Wireless communication systems are widely deployed to provide various types of communication services such as voice or data. In general, a wireless communication system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (bandwidth or transmission power). Examples of multiple access systems include a code division multiple access (CDMA) system, a frequency division multiple access (FDMA) system, a time division multiple access (TDMA) system, an orthogonal frequency division multiple access (OFDMA) system, and a single carrier frequency (SC-FDMA) system. division multiple access) system and MC-FDMA (multi carrier frequency division multiple access) system.

In addition, with the recent development of information and communication technologies, various wireless communication technologies have been developed. Among them, a wireless LAN (WLAN) uses a portable terminal such as a personal digital assistant (PDA), a laptop computer, and a portable multimedia player (PMP) based on radio frequency technology. It is a technology that enables wireless access to the Internet in a specific service area. Among radio frequency technologies, a low-power discovery technology called NAN (neighbor awareness networking) is being developed in the Wi-Fi standard, and development of a near-field proximity service using this is actively progressing.

The electronic device may operate a NDP (NAN data path) session with a plurality of external electronic devices constituting a neighbor awareness networking (NAN) cluster. However, when an electronic device communicates with an external electronic device using an NDP session, since it must allocate a buffer for transmission and reception, the capability of the electronic device (for example, the memory of the chip or performance constraints) Accordingly, the number of NDP sessions capable of transmitting data at the same time may be limited.

For example, when there are k devices capable of simultaneously transmitting data through an NDP session, a user may be inconvenient in not being able to select more than k external electronic devices for transmitting data.

As another example, when an electronic device receives an input for transmitting data from a user to k + p external electronic devices, the electronic device communicates with k external electronic devices through an NDP session and performs NDP session. After ending, communication may be performed by establishing an NDP session with the remaining p units of external electronic devices. In this case, there may be a problem in that the synchronicity between the k + p range of external electronic devices is deteriorated. In addition, there may be a problem that the waiting time of external electronic devices for which the NDP has not been established is delayed.

According to various embodiments, the electronic device includes a communication module, a processor operatively connected to the communication module, and at least one memory operatively connected to the processor, and the at least one memory is, when executed, the A processor performs NAN (neighbor awareness networking) synchronization with a plurality of external electronic devices through the communication module, and a first external electronic device and a first NDP (NAN data path) among the plurality of external electronic devices ) Establish a session, transmit first data to the at least one first external electronic device through the first NDP session, and based on a first condition, first NDP information for the first NDP session Is stored, pauses the first NDP session, establishes a second NDP session with at least one second external electronic device among the plurality of external electronic devices, and establishes a second NDP session through the second NDP session. Transmitting second data to one second external electronic device, storing second NDP information for the second NDP session based on a second condition, stopping the second NDP session, and 1 Instructions for resuming the first NDP session based on NDP information and transmitting third data to the at least one first external electronic device through the resumed first NDP session Can be saved.

According to various embodiments, the electronic device includes a communication module, a processor operatively connected to the communication module, and at least one memory operatively connected to the processor, and the at least one memory, when executed, The processor, through the communication module, performs NAN (neighbor awareness networking) synchronization with a plurality of external electronic devices, identifies a plurality of external electronic devices selected from among the plurality of external electronic devices, and checks the selected plurality of external electronic devices. Establishing at least one first NDP (NAN data path) session with each of at least one first external electronic device among external electronic devices, and the at least one first external electronic device through the at least one first NDP session First data is transmitted to the user, and based on corresponding to the first condition, first NDP information for the at least one first NDP session is stored, and the at least one first NDP session is paused, Establish at least one second NDP session with each of the at least one first external electronic device and at least one second external electronic device other than the at least one first external electronic device among the selected plurality of external electronic devices, and the at least one second NDP session Transmitting second data to the at least one second external electronic device through the second condition, storing second NDP session information for the at least one second NDP session, and storing the at least one second NDP session information Stop the second NDP session, resume the at least one first NDP session based on the first NDP information, and transmit third data through the resumed at least one first NDP session. You can store instructions that you do.

According to various embodiments, a data transmission method by an electronic device includes an operation of synchronizing neighbor awareness networking (NAN) with a plurality of external electronic devices, and at least one first external electronic device among the plurality of external electronic devices. Establishing a first NDP (NAN data path) session with a device, transmitting first data to the at least one first external electronic device through the first NDP session, based on the corresponding first condition, Stores first NDP information on the first NDP session, pauses the first NDP session, and establishes a second NDP session with at least one second external electronic device among the plurality of external electronic devices Performing, transmitting second data to the at least one second external electronic device through the second NDP session, storing second NDP information for the second NDP session based on a second condition And stopping the second NDP session, resuming the first NDP session based on the first NDP information, and the at least one first external electronic device through the resumed first NDP session. The operation of transmitting third data to the device may be included.

According to various embodiments, the electronic device may stop or resume the NDP session with the external electronic device, thereby operating the NDP session at a high speed without delay in NDP setup.

According to various embodiments, the electronic device may increase the number of simultaneous NDP sessions by stopping or resuming the NDP session with the external electronic device.

1 is a block diagram of an electronic device in a network environment, according to various embodiments.

2A is a diagram illustrating a neighbor awareness networking (NAN) cluster including an electronic device according to various embodiments.

2B is a diagram illustrating an example in which an electronic device synchronizes to a NAN cluster according to various embodiments.

2C is a diagram illustrating an embodiment in which an electronic device forms a NDL (NAN device link) and an NDP (NAN data path) according to various embodiments.

3 is a flowchart illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device according to various embodiments of the present disclosure.

4A is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

4B is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

4C is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

5 is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

6 is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device according to various embodiments.

7 is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

FIG. 8 is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

9A is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

9B is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

9C is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

10 is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

11 is a diagram for describing a method for an electronic device to perform NAN-based communication with a plurality of external electronic devices, according to various embodiments.

12 is a diagram for describing a method for an electronic device to perform NAN-based communication with a plurality of external electronic devices, according to various embodiments.

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments. Referring to FIG. 1, in a network environment 100, the electronic device 101 communicates with the electronic device 102 through a first network 198 (for example, a short-range wireless communication network), or a second network 199 It is possible to communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, and a sensor module ( 176, interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197 ) Can be included. In some embodiments, at least one of these components (eg, the display device 160 or the camera module 180) may be omitted or one or more other components may be added to the electronic device 101. In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, a program 140) to implement at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and can perform various data processing or operations. According to an embodiment, as at least a part of data processing or operation, the processor 120 may transfer commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132. It is loaded into, processes commands or data stored in the volatile memory 132, and the result data may be stored in the nonvolatile memory 134. According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphic processing unit, an image signal processor) that can be operated independently or together. , A sensor hub processor, or a communication processor). Additionally or alternatively, the coprocessor 123 may be set to use lower power than the main processor 121 or to be specialized for a designated function. The secondary processor 123 may be implemented separately from the main processor 121 or as a part thereof.

The co-processor 123 is, for example, in place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, executing an application). ) While in the state, together with the main processor 121, at least one of the components of the electronic device 101 (for example, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the functions or states associated with it. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as a part of other functionally related components (eg, the camera module 180 or the communication module 190). have.

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

The program 140 may be stored as software in the memory 130, and may include, for example, an operating system 142, middleware 144, or an application 146.

The input device 150 may receive a command or data to be used for a component of the electronic device 101 (eg, the processor 120) from outside (eg, a user) of the electronic device 101. The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output an sound signal to the outside of the electronic device 101. The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of the speaker.

The display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to an embodiment, the display device 160 may include a touch circuitry set to sense a touch, or a sensor circuit (eg, a pressure sensor) set to measure the strength of a force generated by the touch. have.

The audio module 170 may convert sound into an electrical signal, or conversely, may convert an electrical signal into sound. According to an embodiment, the audio module 170 acquires sound through the input device 150, the sound output device 155, or an external electronic device (eg: Sound can be output through the electronic device 102) (for example, a speaker or headphones).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101, or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do. According to an embodiment, the sensor module 176 is, 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, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more specified protocols that may be used for the electronic device 101 to connect directly or wirelessly with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that a user can perceive through tactile or motor sensations. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture a still image and a video. 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 an embodiment, the power management module 188 may be implemented as at least a 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 non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 includes a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It is possible to support establishment and communication through the established communication channel. The communication module 190 operates independently of the processor 120 (eg, an application processor) and may include one or more communication processors supporting direct (eg, wired) communication or wireless communication. According to an embodiment, the communication module 190 is a wireless communication module 192 (eg, 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 (eg : A local area network (LAN) communication module, or a power line communication module) may be included. Among these communication modules, a corresponding communication module is a first network 198 (for example, a short-range communication network such as Bluetooth, WiFi direct or IrDA (infrared data association)) or a second network 199 (for example, a cellular network, the Internet, or It can communicate with external electronic devices through a computer network (for example, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip), or may be implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses subscriber information stored in the subscriber identification module 196 (eg, International Mobile Subscriber Identifier (IMSI)) in a communication network such as the first network 198 or the second network 199. The electronic device 101 can be checked and authenticated.

The antenna module 197 may transmit a signal or power to the outside (eg, an external electronic device) or receive from the outside. According to an embodiment, the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is, for example, provided by the communication module 190 from the plurality of antennas. Can be chosen. The signal or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as part of the antenna module 197.

At least some of the components are connected to each other through a communication method (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI))) between peripheral devices and a signal ( E.g. commands or data) can be exchanged with each other.

According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199. Each of the external

electronic devices

102 and 104 may be a device of the same or different type as the electronic device 101. According to an embodiment, all or part of the operations executed by the electronic device 101 may be executed by one or more of the external

electronic devices

102, 104, or 108. For example, when the electronic device 101 needs to perform a function or service automatically or based on a request from a user or another device, the electronic device 101 In addition or in addition, it is possible to request one or more external electronic devices to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101. The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this, for example, cloud computing, distributed computing, or client-server computing technology may be used.

2A is a diagram illustrating a neighbor awareness networking (NAN) cluster including an electronic device according to various embodiments. 2B is a diagram illustrating an example in which an electronic device synchronizes to a NAN cluster according to various embodiments. 2C is a diagram illustrating an embodiment in which an electronic device forms a NDL (NAN device link) and an NDP (NAN data path) according to various embodiments.

The NAN cluster 200 may include the electronic device 101 and a plurality of external

electronic devices

201, 202, 203, and/or 204 supporting the NAN function. At least some of the plurality of electronic devices 101 and the external

electronic devices

201, 202, 203, and/or 204 included in one NAN cluster 200 may be synchronized with each other.

For example, the electronic device 101 included in the NAN cluster 200 and a plurality of external

electronic devices

201, 202, 203, and/or 204 may have a time clock synchronized as shown in FIG. 2B. For convenience, synchronization will be described through time clocks of the electronic device 101 and the first external electronic device 201. The

electronic devices

101 and 201 include synchronized NAN parameters (e.g., a period of a discovery window (DW) 211, an interval between successive discovery windows), a low-power state period 213. ), or a NAN channel). The electronic device 101 and the first external electronic device 201 included in the NAN cluster 200 are within the discovery window section 211 activated at the same time, within a beacon, multicast/unicast NAN service discovery. A frame (SDF, service discovery frame) and/or a NAN action frame (NAF, NAN action frame) may be transmitted and received with each other. The electronic device 101 and the first external electronic device 201 may maintain a sleep state in the low power state period 213, and at least one operation of the communication module (eg, the communication module 190 in FIG. 1) is restricted. Can be. The electronic device 101 according to various embodiments of the present disclosure includes the electronic device 101 in order to measure a distance to another external electronic device (eg, the first external electronic device 201) in the NAN cluster 200. A ranging operation may be performed with other external electronic devices.

As shown in FIG. 2C, the electronic device 101 and the external

electronic devices

201 and 203 included in the NAN cluster 200 may form a NDP (NAN data path). The electronic device 101 and the external

electronic devices

201 and 203 may transmit and receive data through the NDP in a section between the discovery window. The electronic device 101 and the external

electronic devices

201 and 203 may have one NAN management interface address (NMI) and one or more NAN data interface addresses (NDI). The electronic device 101 and the external

electronic devices

201 and 203 may form one NDL (NAN device link) between the electronic device 101 and the external

electronic devices

201 and 203, and More than one NDP can be formed. For example, the electronic device 101 may form the first external electronic device 201 and the NDL 1 (221), and the NDP 1 (223) and the NDP 2 (225) through the NDL 1 (221). have. Here, NDP 1 (223) and NDP 2 (225) may be used to transmit and receive data for different services. Also, the electronic device 101 may form the second external electronic device 203 and the NDL 2 227, and form the NDP 3 229 through the NDL 2 227. Although FIG. 2C shows that the NDP and the NDI correspond one-to-one, a plurality of NDPs may correspond to one NDI.

3 is a flowchart illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device (eg, the electronic device 101 of FIG. 1) according to various embodiments.

4A is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments. 4B is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments. 4C is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

In operation 301, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) may perform NAN synchronization with a plurality of external electronic devices. Performing NAN synchronization means that a plurality of external electronic devices (eg, external electronic devices 201 of FIG. 2A) included in the same NAN cluster as the electronic device 101 (eg, the NAN cluster 200 of FIG. 2A ). 202, 203, or 204)).

In operation 303, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) is a first external electronic device (eg, the first external electronic device of FIG. 2) among a plurality of external electronic devices. It is possible to establish a first NDP session with the device 201. The electronic device 101 may generate an NDP ID with the first external electronic device. In addition, the electronic device 101 may transmit a data path request NAN action frame (NAF) for requesting an NDP to the first external electronic device. Here, the data path request NAF (data path request NAF) includes the NDP/NDPE attribute, device capability attribute, HT capability, and VHT capability of the electronic device 101. capability) may be included. Further, the electronic device 101 may receive a data path response NAF (data path response NAF) from the first external electronic device. Here, the data path response NAF (data path response NAF) includes the NDP/NDPE attribute, device capability attribute, HT capability, and VHT capability of the first external electronic device. capability) may be included. When security is required for the NDP session with the first external electronic device, the electronic device 101 may further perform an operation of transmitting and receiving security information with the first external electronic device. For example, when security is required for an NDP session, the electronic device 101 transmits a data path request NAN action frame (NAF) including security information (eg, security present), and provides security information. The included data path response NAF (data path response NAF) may be received. Further, the electronic device 101 may transmit a data path confirm including security information and receive a data path security install including correction information. When an accepted subfield is included in the NDP/NDPE attribute received from the first external electronic device, the electronic device 101 may establish an NDP session with the first external electronic device. For example, the electronic device 101 includes a first external electronic device (eg, the first NAN device 201 of FIG. 2) and a second external electronic device (eg, the second NAN device 202 of FIG. 2 ). You can receive user input of your choice. For example, the electronic device 101 may first establish an NDP session with the first external electronic device according to the priority of the first external electronic device and the second external electronic device. For example, the electronic device 101 may identify a first external electronic device and a second external electronic device to transmit content or service based on context.

In operation 305, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) may transmit the first data to the first external electronic device through the first NDP session. For example, the electronic device 101 may receive a user input for selecting content to be transmitted to a first external electronic device and a second external electronic device. In addition, the electronic device 101 may transmit first data corresponding to at least a portion of the selected content through the first NDP session to the first external electronic device. For example, as shown in FIG. 4A, the electronic device 101 includes

contents

401, 402, 403, 404, 405, and 406 to be transmitted to the first external electronic device 410 and the second external electronic device 420. It is possible to receive a user input for selecting. In addition, data corresponding to

portions

401 and 402 of the

contents

401, 402, 403, 404, 405, and 406 to be transmitted may be transmitted to the first external electronic device. In FIG. 4A, it is described that data is transmitted to the first external electronic device 410 before the second external electronic device 420, but data is transmitted according to the distance between the electronic device 101 and the external electronic devices or signal strength. The order of external electronic devices to transmit data may be changed. In this case, the content may be various, such as images, videos, contact information, or text. In FIG. 4A, it is shown that some of the selected files are transmitted. However, according to an embodiment, data for a part of one file is It can also be transmitted. In addition, although it has been described in FIGS. 4A to 4C that the electronic device 101 transmits data to one external electronic device, the electronic device 101 simultaneously transmits data to a plurality of external electronic devices according to the number of devices that can be transmitted simultaneously. You can also transmit data. According to an embodiment, a plurality of external electronic devices for simultaneously transmitting data may be grouped according to a specified condition. For example, the external electronic devices may be grouped according to the order in which the user selects the external electronic devices, or the user may separately receive an input for classifying the external electronic devices and grouped. For another example, a group of external electronic devices capable of simultaneously transmitting may be grouped according to a type of external electronic devices, a distance to the electronic device, or a data transmission speed.

In operation 307, according to various embodiments, the electronic device 101 (for example, the processor 120 of FIG. 1) stores first NDP information for the first NDP session based on the first condition, and The first NDP session may be paused, and a second NDP session may be established with a second external electronic device among a plurality of external electronic devices.

The electronic device 101 may transmit an NDP pause indication frame informing the first external electronic device to stop the first NDP session and receive a response. The NDP pause indication frame may be defined using a NAN action frame (NAF). Here, stopping the first NDP session may mean switching the first NDP session to an inactive state. For example, the electronic device 101 may switch the first external electronic device and a set NDP schedule to sleep, cancel an activated schedule, and switch to a low power mode. For example, the NDP schedule may indicate information on a time of using an NDP session or information on a channel used to transmit data.

The first NDP information is, for example, the NDP ID of the first NDP session, NMI, security information, setup information including schedule information of the first NDP session, and content ID, sequence information including the first data, or It may include content information including information on a portion of the transmitted content among the entire content. The electronic device 101 may further store device information of the first external electronic device or a mac address (Wi-Fi mac address, Wi-Fi P2P address) of a heterogeneous network of the first external electronic device.

The first condition is, for example, when a set period is reached, the amount of first data transmitted to the first external electronic device exceeds a first threshold, or a user input for stopping the first NDP session is received, Alternatively, it may correspond to at least one of the cases where the distance of the first external electronic device exceeds the second threshold value. For example, the electronic device 101 may transmit data to the first external electronic device for 2 seconds and stop the first NDP session, or transmit one content to the first external electronic device and open the first NDP session. You can stop it. For example, as shown in FIG. 4B, based on transmitting some of the selected

content

401 and 402 to the first external electronic device 410, the electronic device 101 1 The NDP session may be stopped, and an NDP session with the second external electronic device 402 may be established.

An operation in which the electronic device 101 establishes a second NDP session with the second external electronic device may be the same as operation 303.

In operation 309, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) may transmit the second data to the second external electronic device through the second NDP session. For example, the electronic device 101 may transmit second data corresponding to at least some of the selected content to the second external electronic device through the second NDP session. While the electronic device 101 transmits the second data through the second NDP session, the first NDP session is connected but may be in an inactive state. For example, as shown in FIG. 4B, the electronic device 101 transmits data corresponding to some of the selected

contents

401, 402, 403, 404, 405, and 406 to a second external electronic device. It can be transmitted to 420. Meanwhile, in FIG. 4B, the first data transmitted to the first external electronic device 410 and the second data transmitted to the second external electronic device 420 are illustrated as the same, but may not be the same.

In operation 311, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) stores the second NDP information for the second NDP session based on the second condition, The second NDP session may be stopped, and the first NDP session may be resumed based on the first NDP information.

The second condition is, for example, when a set period is reached, the amount of second data transmitted to the second external electronic device exceeds a first threshold value, or a user input for stopping the second NDP session is received, Alternatively, it may correspond to at least one of the cases where the distance of the first external electronic device exceeds the second threshold value. For example, as shown in FIG. 4C, based on transmitting some of the selected

content

401 and 402 to the second external electronic device 420, the electronic device 101 communicates with the second external electronic device 420. The second NDP session may be stopped and the first NDP session with the first external electronic device 410 may be resumed. For another example, when a request for resuming the first NDP session is received from the first external electronic device 410 in which the first NDP session has been stopped, the electronic device 101 is the second external electronic device 420 The second NDP session with and may be stopped and the first NDP session with the first external electronic device 410 may be resumed.

The second NDP information is, for example, the NDP ID of the second NDP session, NMI, security information, setup information including schedule information of the second NDP session, and content ID, sequence information including the second data, or It may include content information including information on a portion of the transmitted content among the entire content.

Resuming the first NDP session may mean switching the first NDP session in the inactive state to the active state by using the stored first NDP information when stopping the first NDP session. For example, the electronic device 101 may transmit an NDP resume indication frame to the first external electronic device and receive a response. The NDP resume indication frame may be defined using the NAN action frame. Here, the NDP resume indication frame may include at least some of an NDP ID stored when stopping the first NDP session, an NMI, an NDI, or a mac address of a heterogeneous network of the first external electronic device. Alternatively, the NDP resume indication frame may include security information of the first NDP session.

In operation 313, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) may transmit the third data to the first external electronic device through the resumed first NDP session. The third data may be data corresponding to at least some of the remaining portions of the content corresponding to the first data transmitted from among the content selected by the user. For example, as shown in FIG. 4C, the electronic device 101 includes

contents

401, 401, 402, 403, 404, 405, and 406 transmitted before the first NDP session is stopped among

contents

401, 402, 403, 404, 405, and 406 selected by the user. And data corresponding to at least some of the

contents

403, 404, 405, and 406 except for the 402 and 402 may be transmitted to the first external electronic device 410.

The electronic device 101 may check the first condition or the second condition and repeat operations 305 to 313 until all content selected by the user is transmitted.

5 is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments. The electronic device 101 (eg, the processor 120 of FIG. 1) may establish a first NDP session with the first external electronic device 510. For example, the electronic device 101 may perform a first NDP setup procedure with the first external electronic device 510 through a 4-way handshake. Meanwhile, performing the NDP setup procedure may mean establishing an NDP session. In order to establish a first NDP session, the electronic device 101 may transmit a first NDP request to the first external electronic device 510 to share the first NDP schedule, and receive a first NDP response thereto. have. In addition, for security of the first NDP session, the electronic device 101 and the first external electronic device 510 may transmit and receive security information. In this way, an operation of transmitting an NDP request, receiving an NDP response, transmitting security information, and receiving security information is referred to as a 4-way handshake. Since the 4-way handshake may be difficult to be performed in one discovery window 501, it may be performed in two

discovery windows

501 and 503. When the first NDP session is established through the 4-way handshake, the electronic device 101 transmits data to the first external electronic device 510 in the interval 509 between discovery windows based on the shared first NDP schedule. can do. When the stop condition (for example, the first condition of operation 307) is satisfied, the electronic device 101 causes the first external electronic device 510 to stop the first NDP session in the discovery window section 513. It is possible to transmit an NDP pause indication frame and receive a response thereto. In addition, when the suspension condition is satisfied, the electronic device 101 stores the first NDP schedule, channel information, and security information in which the first NDP session was operated, and deactivates the first NDP session (e.g., sleep State 535). Also, when the suspension condition is satisfied, the electronic device 101 may establish a second NDP session with the second external electronic device 520. The electronic device 101 includes information on the second NDP schedule to the second external electronic device 520 in order to establish a second NDP session with the second external electronic device 520 in the discovery window section 513 A second NDP request may be transmitted, and a second NDP response may be received. In addition, for security of the second NDP session, the electronic device 101 and the second external electronic device 520 may transmit and receive security information. An operation of establishing a second NDP session with the second external electronic device 520 may be the same as an operation of establishing a first NDP session with the first external electronic device 510. When the second NDP session is established, the electronic device 101 may transmit data to the second external electronic device 520 in the interval 519 between discovery windows based on the shared second NDP schedule. When the stop condition (for example, the second condition of operation 311) is satisfied, the electronic device 101 causes the second external electronic device to stop the second NDP session in the discovery window section 525. It is possible to transmit an NDP pause indication frame and receive a response thereto. In addition, when the suspension condition is satisfied, the electronic device 101 stores information on the second NDP schedule and channel that was operating the second NDP session, and switches to an inactive state (for example, a sleep state 537). I can. In addition, when the suspension condition is satisfied, the electronic device 101 is an NDP resume indication frame for allowing the first external electronic device 520 to resume the first NDP session in the discovery window section 525. And receive a response thereto. Since the electronic device 101 stores security information for the first NDP session while stopping the first NDP session, the first NDP session can be resumed through a 2-way handshake. For example, since two transmissions and receptions for transmitting an NDP resume indication frame and receiving a response thereto are performed, the first NDP session can be resumed through a 2-way handshake. Accordingly, the electronic device 101 may resume the first NDP session through a 2-way handshake instead of a 4-way handshake. When the first NDP session is resumed, the electronic device 101 may transmit data to the first external electronic device 510 in a section 531 between discovery windows. Meanwhile, in FIG. 5, it has been described that the electronic device 101 transmits data to one external electronic device, but the electronic device 101 simultaneously transmits data to a plurality of external electronic devices according to the number of devices that can be transmitted at the same time. May be.

6 is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device according to various embodiments. It may be assumed that the electronic device 101, the first external electronic device 610, and the second external electronic device 620 are synchronized to the same NAN cluster.

In operation 601, the electronic device 101 (eg, the processor 120 of FIG. 1) may establish a first NDP session with the first external electronic device 610 (eg, the electronic device 201 of FIG. 2). have. The electronic device 101 may transmit an NDP request and receive a response within the same discovery window period, and may share the first NDP schedule with the first external electronic device 610 through such a process.

In operation 603, the electronic device 101 may perform NAN data communication with the first external electronic device 610. The electronic device 101 may transmit data to the first external electronic device 610 according to a predetermined channel and time based on a first NDP schedule shared with the first external electronic device 610. The data transmitted to the first external electronic device 610 may be data corresponding to at least a part of content (or service) to be transmitted by the user.

In operation 605, the electronic device 101 may determine that the first condition is satisfied. For example, the first condition (for example, the first condition of operation 307) is that the time that has elapsed since data transmission exceeds a set time, or the electronic device 101 is the first external electronic device 610 ), the amount of data transmitted to the first external electronic device 610 exceeds a set amount, an input for stopping the first NDP session with the first external electronic device 610 is received, or between the electronic device 101 and the first external electronic device 610 It may include at least one of a case in which the distance of exceeds the specified distance, the intensity of the signal becomes smaller than the specified intensity, or an input for establishing (or resuming) an NDP session with another external electronic device is received. For example, when a user input for transmitting five image files is received, the electronic device 101 may determine that the first condition is satisfied when one image file is transmitted. The amount of transmitted data described above may include at least one of the size of the file or the number of files. For another example, when a user input for transmitting a video file is received, the electronic device 101 may determine that the first condition is satisfied when 100MB of a portion of the video file is transmitted.

In operation 607, when the first condition is satisfied, the electronic device 101 may stop the first NDP session with the first external electronic device 610. In operation 609, the electronic device 101 may store first NDP information on the first NDP session. When it is confirmed that the first condition is satisfied, the electronic device 101 transmits an indication of stopping the first NDP session to the first external electronic device 610, and the first NDP with the first external electronic device 610 You can put the session into an inactive state (sleep state). In addition, the electronic device 101 may store first NDP information including at least part of schedule information of the first NDP session, an NDP ID, or an NMI. When the first NDP session with the first external electronic device 610 is a session requiring security, the first NDP information may further include security information.

In operation 611, the electronic device 101 may establish a second NDP session with the second external electronic device 620 (eg, the electronic device 203 of FIG. 2 ). The electronic device 101 may transmit an NDP request to the second external electronic device 620 and receive a response within the same discovery window section. Through this process, the second external electronic device 620 and the second You can share the NDP schedule.

In operation 613, the electronic device 101 may perform NAN data communication with the second external electronic device 620. The electronic device 101 may transmit data to the second external electronic device 620 according to a predetermined channel and time based on a second NDP schedule shared with the second external electronic device 620. In this case, the data transmitted to the second external electronic device 620 may be at least partially the same as the data transmitted to the first external electronic device 610.

In operation 615, the electronic device 101 may determine that the second condition is satisfied. For example, the second condition (e.g., the second condition of operation 311) is that a set time has passed since data transmission, or the electronic device 101 transmitted to the second external electronic device 620 The amount of data exceeds a set amount, an input for stopping a second NDP session with the second external electronic device 620 is received, or an input for establishing (or resuming) an NDP session with another external electronic device is received. At least one of the cases may be included. For example, when a user input for transmitting five image files is received, the electronic device 101 may determine that the second condition is satisfied when one image file is transmitted. Alternatively, the electronic device 101 may determine that the second condition is satisfied when a user input for transmitting a video file is received, or when 100MB of a part of the video file is transmitted.

In operation 617, when the second condition is satisfied, the electronic device 101 may stop the second NDP session with the second external electronic device. In operation 619, the electronic device 101 may store second NDP information on the second NDP session. When it is confirmed that the second condition is satisfied, the electronic device 101 transmits an indication of stopping the second NDP session to the second external electronic device 620, and a second NDP with the second external electronic device 620 You can put the session into an inactive state (sleep state). In addition, the electronic device 101 may store second NDP information including at least part of schedule information, NDP ID, or NMI of the second NDP session. When the second NDP session with the second external electronic device 620 is a session requiring security, the NDP information may further include security information.

In operation 621, the electronic device 101 may resume the first NDP session with the first external electronic device 610. For example, the electronic device 101 may resume the first NDP session using the stored first NDP information when stopping the first NDP session with the first external electronic device 610. According to an embodiment, since the electronic device 101 may not transmit/receive the security information included in the first NDP information with the first external electronic device 610 again, the time required for the operation of establishing the first NDP session The time required for the operation of resuming the first NDP session may be shorter.

In operation 623, the electronic device 101 may perform NAN data communication with the first external electronic device 610. The electronic device 101 may transmit at least some of the data of the content (or service) that the user wants to transmit, excluding data transmitted before stopping the first NDP session. To this end, information on data transmitted when the first NDP session is stopped may be stored.

In operation 625, the electronic device 101 may terminate the first NDP session with the first external electronic device 610. In operation 627, the electronic device 101 may terminate the second NDP session with the second external electronic device 620. The electronic device 101 stops and resumes the first NDP session and the second NDP session with the first external electronic device 610 and the second external electronic device 620 by performing operations 601 to 623 one or more times. Can be performed repeatedly. When all the contents (or services) to be transmitted are transmitted, the electronic device 101 will not maintain the first NDP session and the second NDP session with the first external electronic device 610 and the second external electronic device 620. Accordingly, the first NDP session and the second NDP session with the first external electronic device 610 and the second external electronic device 620 may be terminated without stopping.

7 is a flowchart illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

FIG. 8 is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments. 9A is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments. 9B is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments. 9C is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device, according to various embodiments.

In operation 701, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) may perform NAN synchronization with a plurality of external electronic devices. Performing NAN synchronization may mean activating the discovery window at the same time as a plurality of external electronic devices included in the same NAN cluster as the electronic device 101 (for example, the NAN cluster 200 in FIG. 2 ). have.

In operation 703, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) may check a plurality of selected external electronic devices among a plurality of external electronic devices. The plurality of selected external electronic devices may be devices selected to transmit content. For example, as shown in FIG. 8, the electronic device 101 is among a plurality of external

electronic devices

801, 802, 803, 804, 805, 806, 807, 808, 809, or 810 synchronized to the NAN cluster. A UI 800 for receiving an input of a device to transmit content may be displayed. Meanwhile, the electronic device 101 may display a plurality of external electronic devices in the form of a list, or may display a degree of proximity to the electronic device 101 to appear. The electronic device 101 includes a plurality of external electronic devices 801 selected from among a plurality of external

electronic devices

801, 802, 803, 804, 805, 806, 807, 808, 809, or 810 synchronized to the NAN cluster. 802, 803 or 804) can be identified. Meanwhile, the number of selected external electronic devices may exceed the maximum number of devices through which the electronic device 101 can simultaneously transmit data through NDP communication. For example, as shown in FIG. 9, even when the maximum number of devices to which the electronic device 101 can simultaneously transmit data through NDP communication is 2, the electronic device 101 An input for selecting the

devices

910, 920, 930, or 940 may be received.

In operation 705, according to various embodiments, the electronic device 101 (for example, the processor 120 of FIG. 1) establishes a first NDP session with at least one of a plurality of selected external electronic devices. Can be established. The electronic device 101 may transmit a data path request NAF to each of at least one first external electronic device within the same discovery window section. The electronic device 101 may transmit a data path request NAF from each of the at least one first external electronic device. By receiving the data path response NAF, a first NDP session may be established with each of at least one first external electronic device. When the maximum number of devices through which the electronic device 101 can simultaneously transmit data through NDP communication is 2, the number of at least one first external electronic device may be 2. For example, as shown in FIG. 9, a first NDP session may be established with each of at least one first external

electronic device

910, 920 among a plurality of selected external

electronic devices

910, 920, 930, or 940. have. At this time, the criterion for selecting at least one first external

electronic device

910, 920 among the selected plurality of external

electronic devices

910, 920, 930, and 940 is determined according to the order in which the external electronic devices are selected, or The distance to the device 101 may be determined in close order. For example, based on a communication history between the electronic device 101 and a plurality of external

electronic devices

910, 920, 930, or 940 or a user account of the plurality of external

electronic devices

910, 920, 930, or 940 , At least one of the first external

electronic devices

910 and 920 may be selected.

In operation 707, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) may transmit first data to at least one first external electronic device through first NDP sessions. . For example, as shown in FIG. 9, the electronic device 101 may simultaneously transmit first data to at least one first external

electronic device

910 and 920. The first data may be at least a part of the content to be transmitted. For example, the content to be transmitted may be various such as images, video contacts, and text. When the content to be transmitted is a plurality of images, the first data may be data for one image among the plurality of images. When the transmission target content is one video, the first data may be data for a part of the video.

In operation 709, according to various embodiments, the electronic device 101 (for example, the processor 120 of FIG. 1) corresponds to the first NDP information for at least one first NDP session based on the first condition. Is stored, at least one first NDP session is paused, and at least one second external electronic device and at least one second external electronic device different from at least one first external electronic device among the selected plurality of external electronic devices An NDP session can be established. Meanwhile, some of the at least one first external electronic device may not stop the NDP session. Here, stopping the first NDP session may mean switching the first NDP session to an inactive state. The first condition is, for example, when a set period is reached, the amount of first data transmitted to at least one first external electronic device exceeds a first threshold, or a user input for stopping the first NDP session This may correspond to at least one of a case in which this is received or a distance of some of the at least one first external electronic device exceeds a second threshold value. For example, as shown in FIG. 9B, based on the first condition, the electronic device 101 provides a first NDP for a first NDP session with each of the at least one first external

electronic device

910 and 920. The information can be saved and the first NDP session can be stopped. The electronic device 101 may establish a second NDP session with each of at least one second external

electronic device

930 and 940 among the plurality of external

electronic devices

910, 920, 930, or 940. An operation in which the electronic device 101 establishes a second NDP session with at least one second external electronic device may be the same as operation 705.

In operation 711, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) may transmit the second data to at least one second external electronic device through the second NDP session. . While the electronic device 101 transmits the second data through the second NDP session, the first NDP session is connected but may be in an inactive state. The content corresponding to the second data may be at least partially the same as the content corresponding to the first data. For example, when the content to be transmitted is a plurality of images, when the electronic device 101 stops the first NDP session after transmitting the first image to at least one first external electronic device, at least one second Data for the first image may be transmitted to an external electronic device.

In operation 713, according to various embodiments, the electronic device 101 (for example, the processor 120 of FIG. 1) corresponds to the second NDP session for at least one second NDP session based on the second condition. Information may be stored, at least one second NDP session may be stopped, and at least one first NDP session may be resumed based on the first NDP information. The second condition is, for example, when a set period is reached, the amount of second data transmitted to the second external electronic device exceeds a first threshold value, or a user input for stopping the second NDP session is received, Alternatively, this may correspond to at least one of a case in which a distance of some of the at least one second external electronic device exceeds a second threshold value. Meanwhile, resuming the first NDP session may mean switching the first NDP session in the inactive state to the active state by using the stored first NDP information when stopping the first NDP session. Accordingly, in performing the operation of resuming the first NDP session, the operation of transmitting and receiving security information can be omitted. For example, as shown in FIG. 9C, the electronic device 101 is based on the second condition, and the second NDP for a second NDP session with each of the at least one second external

electronic device

930 and 940 The information can be saved and the second NDP session can be stopped. The first NDP session with each of the at least one first external

electronic device

910 and 920 among the selected plurality of external

electronic devices

910, 920, 930, or 940 may be resumed.

In operation 715, according to various embodiments, the electronic device 101 (eg, the processor 120 of FIG. 1) may transmit third data through at least one resumed first NDP session. The third data may be data corresponding to at least some of the remaining portions of the content corresponding to the first data transmitted from among the content selected by the user. For example, when the content to be transmitted is a plurality of images, the third data may be data for at least a portion of an image that has not been transmitted among the plurality of images. When the content to be transmitted is one video, the third data may be data for at least some of the rest except for the first data transmitted before the first NDP session is stopped.

The electronic device 101 may repeat operations 705 to 715 until all content to be transmitted selected by the user is transmitted.

10 is a diagram illustrating a method of performing NAN-based communication with a plurality of external electronic devices by an electronic device according to various embodiments of the present disclosure. The electronic device 101, the first external electronic device 1010, and the second external electronic device 1020 may be synchronized with the same NAN cluster 1000. In addition, the electronic device 101 may be connected to the third external electronic device 1030 for communication (eg, Bluetooth or Wi-Fi). The electronic device 101 may receive an input for playing content. For example, the input for playing content may be an input for selecting an external electronic device for receiving data on the content. When a user input for selecting an external electronic device is received, the electronic device 101 may establish or resume an NDP session with the selected external electronic device, and stop the NDP session with an external electronic device other than the selected external electronic device. You can quit.

For example, as shown in FIG. 10, the electronic device 101, the first external electronic device 1010, and the second external electronic device 1020 are synchronized with the same NAN cluster 1000, and the electronic device 101 ) And the third external electronic device 1030 (eg, a Bluetooth speaker) may be connected via Bluetooth. In addition, the number of external electronic devices to which the electronic device 101 can simultaneously perform NDP communication may be set to one. While the electronic device 101 establishes a first NDP session with the first external electronic device 1010 and transmits data, the electronic device 101 receives and plays music from the second external electronic device 1020. Can receive user input. When the third external electronic device 1030 is set as a basic device for playing music, the electronic device 101 stops the first NDP session with the first external electronic device 1010 and stops the first NDP session with the second external electronic device 1030. 1020) may be established or resumed. In addition, the electronic device 101 may receive data on music from the second external electronic device 1020 through the second NDP session, and output music through the third external electronic device 1030. Meanwhile, when all music is played, the electronic device 101 may terminate or stop the second NDP session with the second external electronic device 1020 and resume the first NDP session with the first external electronic device 1010. have. Using the information stored when the electronic device 101 suspends the first NDP session with the first external electronic device 1010, the electronic device 101 transmits data prior to stopping the first NDP session. It can then be transmitted.

11 is a diagram for describing a method for an electronic device to perform NAN-based communication with a plurality of external electronic devices, according to various embodiments. In the embodiment of FIG. 11, the maximum number of terminals to which the electronic device 101 can simultaneously transmit data through NDP communication is 2, and the electronic device (DevA) 101 is a first external electronic device (DevB) 1110 , Data to the second external electronic device (DevC) 1120, the third external electronic device (DevD) 1130, the fourth external electronic device (DevE) 1140, and the fifth external electronic device (DevF) 1150 It can be assumed that is transmitted. 11, an electronic device 101, a first external electronic device (DevB) 1110, a second external electronic device (DevC) 1120, a third external electronic device (DevD) 1130, The fourth external electronic device DevE 1140 and the fifth external electronic device DevF 1150 may be synchronized to the same NAN cluster.

The electronic device 101 establishes an NDP session with each of the first external electronic device (DevB) 1110 and the second external electronic device (DevC) 1120 in a discovery window (DW) 0 (1101) section. can do. The electronic device 101 transmits data to the first external electronic device 1110 and the second external electronic device (DevC) 1120 through each NDP session in the section between DW0 (1101) and DW1 (1103). I can. For example, the NDL schedule between the electronic device 101 and the first external electronic device (DevB) 1110 and the NDL schedule between the electronic device 101 and the second external electronic device (DevC) 1120 are channel 149 May be formed, and data may be transmitted through each established NDP. The electronic device 101 may stop the NDP session with the first external electronic device (DevB) 1110 and the second external electronic device (DevC) 1120 in the DW1 (1103) section. As an operation of stopping the NDP session, the electronic device 101 stores NDP session information with the first external electronic device (DevB) 1110 and stores NDP session information with the second external electronic device (DevC) 1120. I can.

In addition, the electronic device 101 may establish an NDP session with each of the third external electronic device (DevD) 1130 and the fourth external electronic device (DevE) 1140 in the DW1 (1103) section. The electronic device 101 provides a third external electronic device (DevD) 1130 and a fourth external electronic device (DevE) 1140 through each NDP session in the section between DW1 (1103) and DW2 (1105). Data can be transmitted. For example, the NDL schedule between the electronic device 101 and the third external electronic device (DevD) 1130 and the NDL schedule between the electronic device 101 and the fourth external electronic device (DevE) 1140 are channel 149 May be formed, and data may be transmitted through each established NDP. While the electronic device 101 transmits data to the third external electronic device (DevD) 1130 and the fourth external electronic device (DevE) 1140, the first external electronic device (DevB) 1110 and the second The NDP session with the external electronic device (DevC) 1120 is not terminated, and an inactive state may be maintained. The electronic device 101 may stop the NDP session with the third external electronic device (DevD) 1130 and the fourth external electronic device (DevE) 1140 in the DW2 1105 section. As an operation of stopping the NDP session, the electronic device 101 stores NDP session information with the first external electronic device (DevB) 1110 and stores NDP session information with the second external electronic device (DevC) 1120. I can.

In addition, the electronic device 101 may establish an NDP session with the fifth external electronic device (DevF) 1150 in the DW2 1105 section. On the other hand, since the maximum number of electronic devices that the electronic device 101 can communicate with at the same time through an NDP session is 2, the electronic device 101 communicates with the fifth external electronic device (DevF) 1150 and another external electronic device. You can activate an NDP session. Accordingly, the NDP session with any of the external

electronic devices

1110, 1120, 1130, or 1140 in which the NDP session has been stopped may be resumed. In the embodiment of FIG. 11, the electronic device 101 may resume the NDP session with the first external electronic device (DevB) 1110. The electronic device 101 is a fifth external electronic device (DevF) 1150 and a first external electronic device (DevB) 1110 through each NDP session in a section between DW2 1105 and DW3 (not shown). Data can be sent to the user. For example, the channel 149 is formed with the NDL schedule between the electronic device 101 and the fifth external electronic device (DevF) 1150 and the NDL schedule between the electronic device 101 and the first external electronic device 1110. And data can be transmitted through each of the established NDPs. While the electronic device 101 transmits data to the fifth external electronic device (DevF) 1150 and the first external electronic device (DevB) 1110, the second external electronic device 1110 and the third external electronic device The NDP session with the (DevD) 1130 and the fourth external electronic device (DevE) 1140 is not terminated, and an inactive state may be maintained.

The electronic device 101 may repeat the above operation (ie, stopping and resuming the NDP session) until all the content to be transmitted is transmitted. Meanwhile, in the description of the embodiment of FIG. 11, it has been described that the stop or resume state of the NDP is maintained in the section between DW and DW, but in the section between DW and DW, the NDP session is stopped or resumed as the condition is satisfied. Can be switched. For example, even in the section between DW and DW, the state of stopping or resuming an NDP session can be switched based on a preset time.

12 is a diagram for describing a method for an electronic device to perform NAN-based communication with a plurality of external electronic devices, according to various embodiments. In the embodiment of FIG. 12, the maximum number of terminals to which the electronic device (DevA) 101 can simultaneously transmit data through NDP communication is 2, the first external electronic device (DevB) 1210, and the second external electronic device. Assume that data is transmitted to (DevC) 1220, a third external electronic device (DevD) 1230, a fourth external electronic device (DevE) 1240, and a fifth external electronic device (DevF) 1250 can do. 12, the electronic device 101, a first external electronic device (DevB 1210), a second external electronic device (DevC) 1220, a third external electronic device (DevD) 1230, The 4 external electronic device (DevE) 1240 and the fifth external electronic device (DevF) 1250 may be synchronized to the same NAN cluster. In addition, before the DW0 1201, the electronic device 101 is An electronic device (DevB) 1210, a second external electronic device (DevC) 1220, a third external electronic device (DevD) 1230, a fourth external electronic device (DevE) 1240, and a fifth external electronic device (DevF) (1250) It may be assumed that the NDP session with each is stopped.

The electronic device 101 may resume an NDP session with each of the first external electronic device (DevB) 1210 and the second external electronic device (DevC) 1220 in the DW0 1201 section. For example, the electronic device 101, in the DW0 (1201) section, the first external electronic device (DevB) 1210 and the second external electronic device (DevC) 1220 to each of the NAF for resuming the NDP session. , SDF can be transmitted. The electronic device 101 stores information (e.g., NDL schedule, NDI, NMI) when stopping the NDP session with the first external electronic device (DevB) 1210 and the second external electronic device (DevC) 1220. , Channel, NDP ID, security information, and/or content sequence information), it is possible to resume the NDP session without performing a series of operations for establishing an NDP session. In addition, the electronic device 101 is a first external electronic device (DevB) 1210 and a second external electronic device (DevC) 1220 through each NDP session in the section between DW0 (1201) and DW1 (1203). You can send data to ). In addition, the electronic device 101 may stop the NDP session with the first external electronic device (DevB) 1210 and the second external electronic device (DevC) 1220 in the DW1 1203 section. As an operation of stopping the NDP session, the electronic device 101 stores NDP session information with the first external electronic device (DevB) 1210 and the NDP session information with the second external electronic device (DevC) 1220. I can.

In addition, the electronic device 101 may resume an NDP session with each of the third external electronic device (DevD) 1230 and the fourth external electronic device (DevE) 1240 in the DW1 1203 section. For example, in the DW1 1203 section, the electronic device 101 provides NAF and SDF to each of the third external electronic device 1310 and the fourth external electronic device (DevE) 1240 to resume the NDP session. Can be transmitted. Before the DW1 1203, the electronic device 101 stores information (for example, when stopping the NDP session with the third external electronic device (DevD) 1230 and the fourth external electronic device (DevE) 1240). , NDL schedule, NDI, NMI, channel, NDP ID, security information, and/or content sequence information), it is possible to resume the NDP session without performing a series of operations for establishing an NDP session. Further, the electronic device 101 is a third external electronic device (DevD) 1230 and a fourth external electronic device (DevE) 1240 through each NDP session in a section between DW1 1203 and DW2 1205. You can send data to ). In addition, the electronic device 101 may stop the NDP session with the third external electronic device (DevD) 1230 and the fourth external electronic device (DevE) 1240 in the section DW2 1205. As an operation of stopping the NDP session, the electronic device 101 stores NDP session information with the third external electronic device (DevD) 1230 and the NDP session information with the fourth external electronic device (DevE) 1240. I can.

In addition, the electronic device 101 may resume the NDP session with the fifth external electronic device (DevF) 1250 in section DW2 1205. Meanwhile, since the maximum number of electronic devices that the electronic device 101 can communicate with at the same time through an NDP session is 2, the electronic device 101 communicates with the fifth external electronic device (DevF) 1250 and another external electronic device. Further NDP sessions can be resumed. Accordingly, the NDP session with any of the external

electronic devices

1210, 1220, 1230, or 1240 in which the NDP session has been stopped may be resumed. In the embodiment of FIG. 12, the electronic device 101 may resume the NDP session with the first external electronic device (DevB) 1210. The electronic device 101 is a fifth external electronic device (DevF) 1250 and a first external electronic device (DevB) 1210 through each NDP session in a section between DW2 1205 and DW3 (not shown). Data can be sent to the user. While the electronic device 101 transmits data to the fifth external electronic device (DevF) 1250 and the first external electronic device (DevB) 1210, the second external electronic device (DevB) 1210 and the third The NDP session with the external electronic device DevD 1230 and the fourth external electronic device DevE 1240 is not terminated, and an inactive state may be maintained. According to an embodiment, in a section between DW2 1205 and DW3 (not shown), a fifth external electronic device (DevF) 1250 and a first external electronic device (DevB) 1210 through each NDP session. At least some of the data transmitted to the user may be different.

The electronic device 101 may repeat the above operation (ie, stopping and resuming the NDP session) until all the content to be transmitted is transmitted. Meanwhile, in the description of the embodiment of FIG. 12, it has been described that the NDP stop or resume state is maintained in the section between DW and DW. However, in the section between DW and DW, the NDP session is stopped or resumed as the condition is satisfied. Can be switched. For example, even in the section between DW and DW, the state of stopping or resuming an NDP session can be switched based on a preset time.

According to various embodiments, an electronic device (for example, the electronic device 101) is a communication module 190, a processor 120 operatively connected to the communication module 190, and operatively with the processor 120. Including at least one memory 130 connected, the at least one memory 130, when executed, the processor 120, through the communication module 190, a plurality of external electronic devices and NAN (neighbor awareness networking) performs synchronization, establishes a first NDP (NAN data path) session with at least one first external electronic device among the plurality of external electronic devices, and establishes the at least one through the first NDP session Transmits first data to a first external electronic device of, and stores first NDP information for the first NDP session based on a first condition, and pauses the first NDP session, Establish a second NDP session with at least one second external electronic device among the plurality of external electronic devices, transmit second data to the at least one second external electronic device through the second NDP session, and Based on the 2 condition, the second NDP information for the second NDP session is stored, the second NDP session is stopped, and the first NDP session is resumed based on the first NDP information. And, instructions for transmitting third data to the at least one first external electronic device through the resumed first NDP session may be stored.

According to various embodiments, the instructions allow the processor 120 to check at least one transmission target content to be transmitted to the first external electronic device, and the first data is selected from among the at least one transmission target content. It is at least a part, and the third data may be at least a part of the rest of the at least one transmission target content except for the first data.

According to various embodiments, the first condition is that a set period is reached, the amount of the first data transmitted to the first external electronic device exceeds a first threshold, or the first NDP session is stopped. This may correspond to at least one of a case where a user input is received or a distance between the electronic device and the first external electronic device exceeds a set distance.

According to various embodiments, the second condition is that a set period is reached, the amount of the second data transmitted to the second external electronic device exceeds a first threshold, or the first NDP session is resumed. This may correspond to at least one of a case in which a user input is received or a distance between the electronic device and the second external electronic device exceeds a set distance.

According to various embodiments, the first NDP information may include setup information for the first NDP session and content information for the first data.

According to various embodiments, the setup information may include at least some of NDP ID, NMI (NAN management interface address), security information, and NDP session schedule information.

According to various embodiments, the content information is at least one of an ID of a content to which at least some data is transmitted through the first NDP session, sequence information, and information on a portion of the transmitted content among the entire content. May contain some.

According to various embodiments, at least some of the content corresponding to the first data and the content corresponding to the second data may be the same.

According to various embodiments, the instructions include, by the processor 120, receiving an input from a user playing content, identifying a third external electronic device corresponding to the content among the plurality of external electronic devices, and , Stopping an NDP session in use among the first NDP session or the second NDP session, establishing a third NDP session with the third external electronic device, or resuming the third NDP session, and starting the third NDP session. Through this, data corresponding to the content may be transmitted to the third external electronic device.

According to various embodiments, the electronic device 101 includes a communication module 190, a processor 120 operatively connected to the communication module 190, and at least one memory operatively connected to the processor 120. (130), wherein the at least one memory 130, when executed, the processor 120, through the communication module 190, a plurality of external electronic devices and NAN (neighbor awareness networking) Synchronization is performed, a plurality of external electronic devices selected among the plurality of external electronic devices are checked, and each of at least one first external electronic device among the plurality of selected external electronic devices and at least one first NDP (NAN data path) establishes a session and transmits first data to the at least one first external electronic device through the at least one first NDP session, and based on a first condition, the at least one first NDP Stores first NDP information on a session, pauses the at least one first NDP session, and at least one device different from the at least one first external electronic device among the selected plurality of external electronic devices. 2 Establishing at least one second NDP session with each of the external electronic devices, transmitting second data to the at least one second external electronic device through the at least one second NDP session, and meeting the second condition. Based on, storing second NDP session information for the at least one second NDP session, stopping the at least one second NDP session, and the at least one first NDP session based on the first NDP information Instructions for resuming (resume) and transmitting the third data through the resumed at least one first NDP session may be stored.

According to various embodiments, the instructions may cause the processor 120 to check the selected plurality of external electronic devices based on a user input among the plurality of external electronic devices.

According to various embodiments, the instructions are performed by the processor 120 to establish at least one first NDP session with each of the at least one first external electronic device among the plurality of selected external electronic devices. As at least in part, the electronic device may check the maximum number of devices capable of simultaneously performing NDP communication, and check the at least one first external electronic device based on the maximum number of devices.

According to various embodiments, the first condition is, when a set period is reached, the amount of the first data transmitted to the at least one first external electronic device exceeds a first threshold value, or the at least one This may correspond to at least one of the cases in which a user input for stopping the first NDP session is received.

According to various embodiments, the second condition is, when a set period is reached, the amount of the second data transmitted to the at least one second external electronic device exceeds a first threshold, or the at least one This may correspond to at least one of the cases in which a user input for resuming the first NDP session is received.

According to various embodiments, the first NDP information may include setup information for each of the at least one first NDP session and content information for the first data.

According to various embodiments, the content information includes an ID of a content to which at least some data is transmitted through the at least one first NDP session, sequence information, and a portion of the transmitted content among the entire content. It may include at least some of the information.

According to various embodiments, the content corresponding to the first data and at least a part of the content corresponding to the second data may be the same.

The master device or the task execution device according to various embodiments disclosed in this document may be various types of devices. The master device or task performing device may include, for example, a computer device, a portable communication device (eg, a smartphone), a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The master device or the task execution device according to the embodiment of the present document is not limited to the above-described devices.

Various embodiments of the present document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutes of the corresponding embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or a plurality of the items unless clearly indicated otherwise in a related context. In this document, “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 “A, Each of phrases such as "at least one of B or C" may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish the component from other Order) is not limited. Some (eg, first) component is referred to as “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When mentioned, it means that any of the above components can be connected to the other components directly (eg by wire), wirelessly, or via a third component.

The term "module" used in this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, parts, or circuits. The module may be an integrally configured component or a minimum unit of the component or a part thereof that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are software (e.g., software containing one or more instructions stored in a storage medium (e.g., internal memory or external memory) readable by a machine (e.g., a master device or a task performing device)). Example: Program). For example, the processor of the device (for example, a master device or a task performing device) may call at least one command among one or more commands stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here,'non-transient' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves). It does not distinguish between temporary storage cases.

According to an embodiment, a method according to various embodiments disclosed in the present document may be provided by being included in a computer program product. Computer program products can be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play Store ^TM ) or two user devices (e.g., compact disc read only memory (CD-ROM)). It can be distributed (e.g., downloaded or uploaded) directly between, e.g. smartphones). In the case of online distribution, at least a part of the computer program product may be temporarily stored or temporarily generated in a storage medium that can be read by a device such as a server of a manufacturer, a server of an application store, or a memory of a relay server.

According to various embodiments, each component (eg, module or program) of the above-described components may include a singular number or a plurality of entities. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components in the same or similar to that performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be sequentially, parallel, repeatedly, or heuristically executed, or one or more of the operations may be executed in a different order or omitted. Or one or more other actions may be added.

Claims

In the electronic device,

Communication module;

A processor operatively connected to the communication module; And

And at least one memory operatively connected to the processor, the at least one memory, when executed, the processor,

Through the communication module, NAN (neighbor awareness networking) synchronization is performed with a plurality of external electronic devices,

Establishing a first NDP (NAN data path) session with at least one first external electronic device among the plurality of external electronic devices,

Transmitting first data to the at least one first external electronic device through the first NDP session,

Based on corresponding to the first condition, first NDP information on the first NDP session is stored, the first NDP session is paused, and at least one second external device among the plurality of external electronic devices is Establish a second NDP session with the electronic device,

Transmitting second data to the at least one second external electronic device through the second NDP session,

Based on the second condition, the second NDP information for the second NDP session is stored, the second NDP session is stopped, and the first NDP session is resumed based on the first NDP information. ), and

The electronic device storing instructions for transmitting third data to the at least one first external electronic device through the resumed first NDP session.
The method of claim 1,

The instructions, the processor,

Check at least one transmission target content to be transmitted to the first external electronic device,

The first data is at least a portion of the at least one transmission target content, and the third data is at least a portion of the at least one transmission target content except for the first data.
The method of claim 1,

The first condition is,

A set period is reached, the amount of the first data transmitted to the first external electronic device exceeds a first threshold, a user input for stopping the first NDP session is received, or the electronic device and the An electronic device that corresponds to at least one of a case in which the distance between the first external electronic devices exceeds a set distance.
The method of claim 1,

The second condition is,

A set period is reached, the amount of the second data transmitted to the second external electronic device exceeds a first threshold, a user input for resuming the first NDP session is received, or the electronic device and the The electronic device corresponding to at least one of the cases in which the distance between the second external electronic devices exceeds the set distance.
The method of claim 1,

The first NDP information includes setup information for the first NDP session or content information for the first data.
The method of claim 5,

The setup information includes at least some of NDP ID, NMI (NAN management interface address), security information, or NDP session schedule information.
The method of claim 5,

The content information includes at least a portion of an ID of a content to which at least some data is transmitted through the first NDP session, sequence information, or information on a portion of the transmitted content among the entire content .
The method of claim 1,

The electronic device, wherein the content corresponding to the first data and the content corresponding to the second data are at least partially the same.
The method of claim 1,

The instructions, the processor,

Receiving a user's input for playing content,

Checking a third external electronic device for receiving the content from among the plurality of external electronic devices,

Stopping an NDP session in use among the first NDP session or the second NDP session, establishing a third NDP session with the third external electronic device, or resuming the third NDP session,

The electronic device configured to receive data corresponding to the content from the third external electronic device through the third NDP session.
In the data transmission method by the electronic device,

Performing neighbor awareness networking (NAN) synchronization with a plurality of external electronic devices;

Establishing a first NDP (NAN data path) session with at least one first external electronic device among the plurality of external electronic devices;

Transmitting first data to the at least one first external electronic device through the first NDP session;

Based on corresponding to the first condition, first NDP information on the first NDP session is stored, the first NDP session is paused, and at least one second external device among the plurality of external electronic devices is Establishing a second NDP session with the electronic device;

Transmitting second data to the at least one second external electronic device through the second NDP session;

Based on the second condition, the second NDP information for the second NDP session is stored, the second NDP session is stopped, and the first NDP session is resumed based on the first NDP information. ) The operation; And

And transmitting third data to the at least one first external electronic device through the resumed first NDP session.
The method of claim 10,

Transmitting first data to the at least one first external electronic device through the first NDP session,

And checking at least one transmission target content to be transmitted to the first external electronic device,

The first data is at least a part of the at least one transmission target content, and the third data is at least a part of the rest of the at least one transmission target content except for the first data.
The method of claim 10,

The first condition is,

A set period is reached, the amount of the first data transmitted to the first external electronic device exceeds a first threshold, a user input for stopping the first NDP session is received, or the electronic device and the The method corresponding to at least one of the cases in which the distance between the first external electronic devices exceeds the set distance.
The method of claim 10,

The second condition is,

A set period is reached, the amount of the second data transmitted to the second external electronic device exceeds a first threshold, a user input for resuming the first NDP session is received, or the electronic device and the The method corresponding to at least one of the cases in which the distance between the second external electronic devices exceeds the set distance.
The method of claim 10,

The method, wherein the content corresponding to the first data and the content corresponding to the second data are at least partially the same.
The method of claim 10,

Receiving a user's input for playing content;

Checking a third external electronic device for receiving the content from among the plurality of external electronic devices;

Stopping an NDP session in use among the first NDP session or the second NDP session, establishing a third NDP session with the third external electronic device, or resuming the third NDP session; And

Receiving data corresponding to the content from the third external electronic device through the third NDP session.