KR102663265B1 - Electronic device and method for controlling NAN based communication thereof - Google Patents

Abstract

An electronic device according to an embodiment disclosed in this document may include a communication circuit, a memory, and a processor operatively connected to the communication circuit and the memory. According to one embodiment, when the memory is executed, the processor synchronizes to a cluster for performing NAN (neighbor awareness networking)-based communication with at least one external electronic device through the communication circuit, and the communication circuit A service group that performs a NAN-based service discovery operation based on service information and at least one external electronic device included in the cluster, and includes at least one of the at least one external electronic device based on the service discovery operation. configures, shares service group information with an external electronic device included in the configured service group through the communication circuit, registers the service group information in a BLE (Bluetooth low energy) scan filter, and shares the service group information with the external electronic device included in the configured service group through the communication circuit. Instructions for performing NAN-based communication within a service group can be stored.
In addition to this, various embodiments identified through the specification are possible.

Description

Electronic device and method for controlling NAN based communication thereof}

Various embodiments disclosed in this document are related to NAN (neighbor awareness networking)-based communication control technology.

Electronic devices can perform wireless communication with other electronic devices using not only a wide area network (WAN) but also a local area network (LAN). Among short-range communication networks, the NAN protocol based on the NAN (neighbor awareness networking) specification is a protocol that synchronizes the time when messages are transmitted or received between electronic devices and other electronic devices. In recent Wi-Fi standards, discovery technology based on NAN (neighbor awareness networking) is being developed, and the development of proximity services utilizing this is actively underway.

Conventionally, when electronic devices formed a NAN-based cluster, all electronic devices in the NAN cluster needed to be activated at all times for synchronization. Additionally, when using the same service within a NAN-based cluster, it was necessary to select the same electronic device each time the service was used.

Various embodiments disclosed in this document are intended to provide an electronic device capable of efficient service group operation between terminals supporting NAN-based communication and a NAN-based communication control method for the electronic device.

An electronic device according to an embodiment disclosed in this document may include a communication circuit, a memory, and a processor operatively connected to the communication circuit and the memory. According to one embodiment, when the memory is executed, the processor synchronizes to a cluster for performing NAN (neighbor awareness networking)-based communication with at least one external electronic device through the communication circuit, and the communication circuit A service group that performs a NAN-based service discovery operation based on service information and at least one external electronic device included in the cluster, and includes at least one of the at least one external electronic device based on the service discovery operation. configures, shares service group information with an external electronic device included in the configured service group through the communication circuit, registers the service group information in a BLE (Bluetooth low energy) scan filter, and shares the service group information with the external electronic device included in the configured service group through the communication circuit. Instructions that perform NAN-based communication within a service group can be stored.

In addition, the NAN-based communication control method of an electronic device according to an embodiment disclosed in this document synchronizes to a cluster for performing NAN (neighbor awareness networking)-based communication with at least one external electronic device through a communication circuit. An operation of performing a NAN-based service discovery operation based on service information and at least one external electronic device included in the cluster through the communication circuit, at least one external electronic device based on the service discovery operation. An operation to configure a service group including at least one service group, an operation to share service group information with at least one external electronic device included in the configured service group through the communication circuit, and the service group information to BLE (Bluetooth low energy) It may include registering with a scan filter and performing NAN-based communication within the service group through the communication circuit.

In addition, an electronic device according to an embodiment disclosed in this document includes a communication circuit, a memory, and a processor operatively connected to the communication circuit and the memory, and the memory is, when executed, the processor When restarting communication within a pre-configured NAN (neighbor awareness networking)-based service group, pre-stored service group information is recognized, and BLE (Bluetooth low energy) triggers based on the service group information registered in the BLE scan filter. Recognize at least one external electronic device corresponding to the service group based on a NAN communication protocol, control to activate the NAN function of the electronic device and the recognized at least one external electronic device, and control the electronic device and the at least one external electronic device to be activated. Perform a NAN-based service discovery operation based on one external electronic device and the service group information, restore the service group based on the service discovery, and perform NAN-based service discovery within the restored service group through the communication circuit. Instructions that allow communication to be performed can be stored.

According to various embodiments disclosed in this document, a service group can be formed between electronic devices that support NAN-based communication, and NAN-based communication can be efficiently controlled based on information on the service group.

According to various embodiments disclosed in this document, electronic devices belonging to a previously formed service group can be easily searched based on service group information, and communication can be performed by reforming the existing service group.

According to various embodiments disclosed in this document, unnecessary current consumption in electronic devices can be reduced when creating and operating a NAN-based service group.

According to various embodiments disclosed in this document, a previously formed service group can be quickly and easily reformed based on service group information.

In addition, various effects that can be directly or indirectly identified through this document may be provided.

1 shows an electronic device in a network environment according to various embodiments.
Figure 2 is a block diagram of an electronic device according to an embodiment.
FIG. 3 is a diagram illustrating a cluster in which electronic devices are synchronized according to an embodiment.
FIG. 4 is a diagram illustrating a time clock with which an electronic device is synchronized, according to one embodiment.
FIG. 5 is a diagram illustrating the roles and state transitions of electronic devices within a cluster according to an embodiment.
FIG. 6 is a diagram illustrating a signal transmission and reception form of an electronic device according to an embodiment of the present invention.
Figure 7 is a diagram illustrating a NAN service discovery protocol using BLE communication according to an embodiment.
Figure 8 is a diagram illustrating a BLE TDS packet according to one embodiment.
Figure 9 is a flowchart of a NAN-based communication control method of an electronic device according to an embodiment.
Figure 10 is a flowchart of a NAN-based communication control method of an electronic device according to an embodiment.
Figure 11 is a flowchart of a NAN-based communication control method according to an embodiment.
Figure 12 is a flowchart of a NAN-based communication control method of an electronic device according to an embodiment.
Figure 13 is a flowchart of a NAN-based communication control method according to an embodiment.
In relation to the description of the drawings, identical or similar reference numerals may be used for identical or similar components.

1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments. Referring to FIG. 1, in the network environment 100, the electronic device 101 communicates with the electronic device 102 through a first network 198 (e.g., 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 (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to one 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 ) may include. 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 a single integrated circuit. For example, the sensor module 176 (e.g., a fingerprint sensor, an iris sensor, or an illumination sensor) may be implemented while being embedded in the display device 160 (e.g., a display).

The processor 120, for example, executes software (e.g., program 140) to operate at least one other component (e.g., hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and various data processing or calculations can be performed. According to one embodiment, as at least part of data processing or computation, the processor 120 stores commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132. The commands or data stored in the volatile memory 132 can be processed, and the resulting data can be stored in the non-volatile memory 134. According to one embodiment, the processor 120 includes a main processor 121 (e.g., a central processing unit or an application processor), and an auxiliary processor 123 that can operate independently or together (e.g., a graphics processing unit, an image signal processor). , sensor hub processor, or communication processor). Additionally or alternatively, the auxiliary processor 123 may be set to use less power than the main processor 121 or to specialize in a designated function. The auxiliary processor 123 may be implemented separately from the main processor 121 or as part of it.

The auxiliary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (e.g., sleep) state, or while the main processor 121 is in an active (e.g., application execution) state. ), along with the main processor 121, at least one of the components of the electronic device 101 (e.g., the display device 160, the sensor module 176, or the communication module 190) At least some of the functions or states related to can be controlled. According to one embodiment, coprocessor 123 (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module 180 or communication module 190). there is.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101. Data may include, for example, input data or output data for software (e.g., program 140) and instructions related thereto. Memory 130 may include volatile memory 132 or non-volatile 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 application 146.

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

The sound output device 155 may output sound signals 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 it.

The display device 160 can 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 one embodiment, the display device 160 may include touch circuitry configured to detect a touch, or a sensor circuit configured to measure the intensity of force generated by the touch (e.g., a pressure sensor). there is.

The audio module 170 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module 170 acquires sound through the input device 150, the sound output device 155, or an external electronic device (e.g., directly or wirelessly connected to the electronic device 101). Sound may be output through the electronic device 102 (e.g., speaker or headphone).

The sensor module 176 detects the operating state (e.g., power or temperature) of the electronic device 101 or the external environmental state (e.g., user state) and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 176 includes, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, humidity sensor, or light sensor.

The interface 177 may support one or more designated protocols that can be used to connect the electronic device 101 directly or wirelessly with an external electronic device (eg, the electronic device 102). According to one 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 one 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 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 can capture still images and moving images. According to one embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 can manage power supplied to the electronic device 101. According to one 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 one embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

The communication module 190 provides a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication through established communication channels. Communication module 190 operates independently of processor 120 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., : LAN (local area network) communication module, or power line communication module) may be included. Among these communication modules, the corresponding communication module is a first network 198 (e.g., a short-range communication network such as Bluetooth, WiFi direct, or IrDA (infrared data association)) or a second network 199 (e.g., a cellular network, the Internet, Alternatively, it may communicate with an external electronic device 104 through a computer network (e.g., a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (e.g., a single chip) or may be implemented as a plurality of separate components (e.g., multiple chips). The wireless communication module 192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199. The electronic device 101 can be confirmed and authenticated.

The antenna module 197 may transmit or receive signals or power to or from the outside (e.g., an external electronic device). According to one embodiment, the antenna module 197 may include one antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one 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 connected to the plurality of antennas by, for example, the communication module 190. can be selected. Signals or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) in addition to 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 between peripheral devices (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( (e.g. commands or data) can be exchanged with each other.

According to one 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 of the same or different type as the electronic device 101. According to one embodiment, all or part of the operations performed in the electronic device 101 may be executed in one or more of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 must perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 may perform the function or service instead of executing the function or service on its own. Alternatively, or additionally, one or more external electronic devices may be requested to perform at least part of the function or service. One or more external electronic devices that have received the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may process the result as is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technologies may be used.

Figure 2 is a block diagram of an electronic device according to one embodiment.

According to one embodiment, the electronic device 200 (eg, the electronic device 101 of FIG. 1) may include a communication circuit 210, a processor 230, and a memory 220.

According to one embodiment, the communication circuit 210 (e.g., the communication module 190 of FIG. 1) operates under the control of the processor 230 or independently of the processor 230 with an external electronic device (e.g., the electronic device of FIG. 1). (102, 104) or the server 108) or an external network (eg, the first network 198 or the second network 196 in FIG. 1). According to one embodiment, the communication circuit 210 may perform NAN (neighbor awareness networking)-based communication. According to one embodiment, the communication circuit 210 may perform the BLE (Bluetooth low energy) triggers NAN protocol defined in the NAN protocol. According to one embodiment, the communication circuit 210 may include at least a portion of the communication module 190 shown in FIG. 1 .

According to one embodiment, the processor 230 (e.g., the processor 120 of FIG. 1) may form a neighbor awareness networking (NAN) cluster with at least one external electronic device through the communication circuit 210. For example, the processor 230 may configure a NAN cluster with at least one external electronic device supporting the same service using the BLE triggers NAN communication protocol through the communication circuit 210. For example, the processor 230 may send a first BLE TDS advertisement (BLE TDS) containing service information (e.g., service name or application name) corresponding to an application running (in service) through the communication circuit 210. A transport discovery service (advertisement) packet (e.g., M1 in FIG. 7) may be transmitted to an external electronic device. According to one embodiment, the processor 230 may receive a second BLE TDS advertisement packet from an external electronic device that matches service information included in the first BLE TDS advertisement packet. For example, an external electronic device matching the service information included in the first BLE TDS advertisement packet may be a device that has registered service information in the BLE scan filter. According to one embodiment, the processor 230 may cause an external electronic device matching service information to activate the NAN function through the first BLE TDS advertisement packet.

According to one embodiment, the processor 230 may receive a second BLE TDS advertisement packet (e.g., M2 in FIG. 7) in response to the first BLE TDS advertisement packet from an external electronic device through the communication circuit 210. there is. According to one embodiment, the processor 230 may activate the NAN function in response to receiving the second BLE TDS advertisement packet and perform a NAN cluster synchronization operation. According to one embodiment, the processor 230 may activate the NAN function while transmitting the first BLE TDS advertisement packet. According to one embodiment, the processor 230 may configure the NAN cluster in accordance with a separate NAN protocol without using the BLE triggers NAN protocol.

According to one embodiment, the processor 230 may perform service discovery through the communication circuit 210. For example, the processor 230 may perform service discovery based on service information. According to one embodiment, the processor 230 may transmit a subscribe message including service information to at least one external electronic device included in the NAN cluster. According to one embodiment, the processor 230 may receive a publish message sent by an external electronic device in response to a subscription message. For example, the publication message may include device information (e.g., device name, ID, or phone number information) or user information (user's name, profile information, or account information) of an external electronic device.

According to one embodiment, the processor 230 may configure a service group based on service discovery. According to one embodiment, when the processor 230 receives a publication message from at least one external electronic device included in the NAN cluster, the processor 230 includes information on the at least one external electronic device based on the information included in the publication message. A user interface can be provided. According to one embodiment, the processor 230 may select external electronic devices that will form a service group according to user input through a user interface. According to one embodiment, the processor 230 has the same account information or related account information (e.g., family account information) as the electronic device 200, based on the account information of the external electronic device included in the received publishing message. An external electronic device may be selected as an electronic device that will form a service group (e.g., electronic devices 102 and 104 in FIG. 1). According to one embodiment, the processor 230 configures a service group of external electronic devices that satisfy specified conditions based on information (e.g., phone number or contact information) of the external electronic device included in the issued message. Electronic devices (e.g., electronic devices 102 and 104 in FIG. 1) may be selected.

According to one embodiment, the processor 230 configures a service group with at least one selected external electronic device and synchronizes it with the at least one external electronic device based on service group information. According to one embodiment, the service group information is at least one of a service group profile ID, service group ID, service group key, service group validity period, service group member information, service information, service-related application information, or service role. may include.

According to one embodiment, the processor 230 may share service group information with an external electronic device included in the service group through the communication circuit 210. According to one embodiment, the processor 230 may store service group information in the memory 220 and transmit the service group information to an external electronic device within the service group through the communication circuit 210. For example, the processor 230 may transmit a service discovery frame (SDF) (follow up) message including service group information to an external electronic device within the service group through the communication circuit 210. As another example, the processor 230 may transmit a NAN action frame including service group information to an external electronic device within the service group through the communication circuit 210. According to one embodiment, the processor 230 may transmit a follow up (SDF) message including a service group key to an external electronic device through the communication circuit 210. For example, the service group key may be included in the SDF message in a hash manner. For example, the service group key can be used to enable secure communication within the service group by encrypting the SDF, NAF, and data frames in the service group. According to one embodiment, the processor 230 provides information (e.g., service group member information) about the electronic device 200 and/or the external electronic device belonging to the service group to an external electronic device within the service group through the communication circuit 210. can be transmitted. For example, information on the electronic device 200 and external electronic devices belonging to the service group may include device name and/or device address information. According to one embodiment, when service group information has an expiration date, the processor 230 may delete service group information whose expiration date has elapsed.

According to one embodiment, the processor 230 may register service group information (eg, service group ID) in the BLE scan filter. For example, the BLE scan filter can be used when searching for external electronic devices that support NAN services by the BLE triggers NAN protocol. For example, the BLE scan filter may filter a signal corresponding to registered service group information among signals received from an external electronic device (e.g., a BLE TDS packet broadcast by the external electronic device). For example, the processor 230 may recognize an external electronic device that supports designated service group information through a BLE scan filter. According to one embodiment, the processor 230 may cause an external electronic device within a service group that has received service group information to register service group information (eg, service group ID) in the BLE scan filter. For example, each of the electronic devices 200 or external electronic devices within a service group may register the same service group information in the BLE scan filter. For example, each of the electronic devices 200 or external electronic devices within a service group may register a list of devices included in the same service group in the BLE scan filter.

According to one embodiment, the processor 230 may perform NAN-based communication within a service group through the communication circuit 210. For example, the electronic device 200 and external electronic devices within the service group may provide NAN-based services (eg, functions corresponding to first service information). For example, the processor 230 performs a NAN-based service (e.g., SDF exchange, NDP communication, ranging, or multicast service) corresponding to service information through the communication circuit 210. can do.

According to one embodiment, the processor 230 may recognize a NAN service interruption. For example, the electronic device 200 terminates an application related to the service being provided, user input to stop the NAN service, or when an electronic device within the service group and/or an external electronic device disables the NAN function within the service group. NAN service interruption can be recognized when there is no communication for more than a specified time, or when a service group switches to sleep mode. For example, the power saving mode of a service group may be a mode to reduce power consumption within the service group. For example, power saving mode may include a state in which services being provided within a service group are temporarily suspended. For example, the power saving mode may include a case where at least one electronic device included in the service group operates in a power saving mode (eg, battery saving mode) provided by the electronic device.

According to one embodiment, when the NAN service is temporarily suspended or terminated, the processor 230 may transmit a message notifying the service interruption to an external electronic device within the service group through the communication circuit 210.

According to one embodiment, the processor 230 may disable the NAN function when the NAN service is interrupted. According to one embodiment, the processor 230 may cause an external electronic device to deactivate the NAN function through a message notifying service interruption.

According to one embodiment, the processor 230 may recognize NAN service restart. For example, the processor 230 may receive a user's input to restart a NAN-based service that has been suspended or terminated. For example, the processor 230 outputs a user interface including information about a previously configured service group and/or a service performed in the service group through a display (e.g., the display device 160 of FIG. 1). can do. For example, the processor 230 may receive a user input for selecting a specific service group or service through a user interface. For example, the processor 230 may recognize resumption of NAN communication within a service group or deactivation of the power saving mode of the service group. For example, the power saving mode of a service group may be a mode to reduce power consumption within the service group. For example, power saving mode may include a state in which services being provided within a service group are temporarily suspended. For example, the power saving mode may include a case where there is no NAN-based data communication for a certain period of time during NAN communication within a service group, or a case where a user selects a preset power saving mode through a user interface. For example, a host electronic device connected to an external output device (e.g., speaker (e.g., Bluetooth speaker)) forms a NAN-based service group with an external guest electronic device, and the host electronic device Assuming that a service is performed that receives audio data from a guest electronic device and outputs audio through a connected external output device, one of the host electronic device and/or the guest electronic device temporarily suspends the service ( You can activate a user interface button to pause or automatically suspend the currently running service in order to temporarily run another service. In this case, NAN communication within the NAN-based service group may be temporarily stopped, and this state may be operating in power saving mode.

According to one embodiment, the processor 230 may recognize pre-stored service group information. For example, the processor 230 may use at least one of a service group ID, a service group profile, service group member information, service information related to the service group, or the roles of the electronic device 200 and/or external electronic devices within the service group. One can recognize it. According to one embodiment, the processor 230 may transmit a BLE TDS advertisement packet to an external electronic device based on service group information through the communication circuit 210. For example, service group information, unlike service information commonly used in the BLE TDS triggers NAN protocol, can be used to activate the NAN function by distinguishing only external electronic devices belonging to a previously configured service group. For example, the processor 230 may transmit a BLE TDS advertisement packet including service group information (eg, service group ID) to at least one external electronic device through the communication circuit 210. According to one embodiment, the processor 230 may receive a second BLE TDS advertisement packet from an external electronic device that previously registered service group information in the BLE scan filter among external electronic devices that received the first BLE TDS advertisement packet. there is.

According to one embodiment, the processor 230 activates the NAN function while transmitting a BLE TDS packet (the first BLE TDS advertisement packet) to an external electronic device, or a response from the external electronic device (the second BLE TDS advertisement packet). ), the NAN function can be activated. For example, an external electronic device that matches the service group information included in the first BLE TDS advertisement packet may transmit the second BLE TDS advertisement packet to the electronic device 200 and activate the NAN function. For example, based on service group information, only external electronic devices that previously belonged to the service group can selectively activate the NAN function.

According to one embodiment, the processor 230 may perform service discovery based on service group information. According to one embodiment, the processor 230 may perform service discovery through SDF exchange with an external electronic device. For example, the processor 230 may recognize an external electronic device belonging to the current NAN cluster among service group members. According to one embodiment, the processor 230 sends a separate message based on service group information and related information (e.g., service group member information, or role information of the electronic device 200 and/or external electronic devices within the service group). You can also configure a NAN service group without an exchange.

According to one embodiment, the processor 230 may reconfigure the service group. For example, the processor 230 may restore a previously configured service group. According to one embodiment, the processor 230 may perform NAN-based communication within a service group. For example, the processor 230 may provide a NAN-based service (eg, a service corresponding to service information or service group information) together with an external electronic device within a service group.

According to one embodiment, the processor 230 may include at least a portion of the processor 120 shown in FIG. 1.

According to one embodiment, the memory 220 (eg, memory 130 in FIG. 1) may store instructions executed by the processor 230. According to one embodiment, the memory 220 may store service group information when the electronic device 200 configures a NAN cluster and a service group. For example, service group information may include service group profile ID, service group ID, service group key, expiration date, service group member information, service information, service-related application information, or electronic device 200 and external electronic device belonging to the service group. It may include at least one of the service roles of devices. For example, the service group profile ID may be an ID assigned by the electronic device 200 (or a user) to distinguish one or more service groups. According to one embodiment, the memory 220 may include at least a portion of the memory 130 shown in FIG. 1 .

According to one embodiment, the electronic device 200 restores the service group by performing BLE triggers NAN protocol and service discovery based on service group information, thereby preventing the NAN function of external electronic devices that do not belong to the service group from being activated. You can. Accordingly, the electronic device 200 improves the speed of reconfiguring a previously configured service group and reduces unnecessary current consumption and/or resource consumption of the electronic device 200 and/or external electronic devices when operating the service group. can be reduced.

FIG. 3 is a diagram illustrating a cluster in which electronic devices are synchronized according to an embodiment.

According to one embodiment, the cluster 301 mentioned below may include a NAN cluster 301 according to the NAN (neighbor awareness networking) standard. For example, the NAN cluster 301 may refer to a set of at least one electronic device that transmits and receives data or signals based on a proximity network. According to the NAN standard, at least one electronic device synchronized to the NAN cluster 301 has at least one parameter (e.g., discovery window, between discovery windows) that is identical to each other in relation to the operation of a proximity network or proximity service. interval section, beacon interval, and/or NAN channel) can be used.

Referring to FIG. 3, the electronic device 310 (e.g., the electronic device 101 of FIG. 1 and the electronic device 200 of FIG. 2) according to an embodiment includes a wireless communication circuit (or wireless communication module) (e.g. : To operate NAN standard low-power proximity communication (e.g., first communication) using the wireless communication module 192 of FIG. 1 and the communication circuit 210 of FIG. 2, at least one external electronic device 320a, 320b and/or 320c) and a network (e.g., the first network 198 of FIG. 1) may be established and a cluster 301 may be formed to interact with each other.

In one embodiment, the electronic device 310 transmits data or signals related to the operation of proximity service through a discovery window section, which is a communication section synchronized with the at least one external electronic device 320a, 320b, and/or 320c. Can send and receive. For example, the electronic device 310 sends a sync beacon containing at least one information related to synchronization with at least one external electronic device 320a, 320b, and/or 320c through the discovery window section. Can send and receive. Alternatively, the electronic device 310 may transmit and receive a service discovery frame related to service advertisement or service information sharing through the discovery window section.

FIG. 4 is a diagram illustrating a time clock synchronized by an electronic device according to an embodiment.

According to one embodiment, in NAN-based communication, an electronic device (e.g., electronic device 310 of FIG. 3) within a cluster (e.g., cluster 301 of FIG. 3) and/or at least one external electronic device ( Example: Time clocks are synchronized between the external electronic devices 320a, 320b, and 320c of FIG. 3, so that they send beacons and service discovery frames to each other within the same discovery window (DW) section. frames) can be exchanged. According to one embodiment, the electronic device synchronized to the cluster and/or at least one external electronic device may operate in a wake state and a sleep state on a mutually synchronized time clock. For example, the electronic device synchronized to the cluster and/or at least one external electronic device operates in a wake state in the discovery window (DW) section 410, and in sections other than the discovery window (DW) section 410, For example, in the interval section 440 between the plurality of discovery window (DW) sections 410, the device operates in a sleep state, thereby reducing power consumption. According to various embodiments, the electronic device synchronized to the cluster and/or at least one external electronic device uses other than NAN standard low-power proximity communication in the interval section 440 between the plurality of discovery window (DW) sections 410. Other communication methods can be used.

According to one embodiment, an electronic device synchronized to the cluster and/or at least one external electronic device may transmit and receive data or signals through a synchronization channel (eg, channel 6) according to the NAN standard.

According to one embodiment, the electronic device synchronized to the cluster and/or at least one external electronic device may be synchronized to the time clock of a specific electronic device defined as a master device. According to one embodiment, the electronic device synchronized to the cluster and/or at least one external electronic device occupies 16 time units (TU, time units) according to the NAN standard on the time clock, and 512 time units. At least one of the synchronization beacon 420 and the service discovery frame 430 may be transmitted and received within the discovery window (DW) section 410 that exists at intervals. In one embodiment, transmission of the synchronization beacon 420 and the service discovery frame 430 may be performed based on competition between an electronic device synchronized to the cluster and/or at least one external electronic device.

According to the NAN standard, the synchronization beacon 420 is a specific electronic device defined as a master device or a non-master sync device among the electronic devices synchronized to the cluster and/or at least one external electronic device. Can be transmitted by the device. In one embodiment, the synchronization beacon 420 may function as a signal for maintaining synchronization (e.g., time clock synchronization) between electronic devices synchronized to the cluster and/or at least one external electronic device. In this regard, the synchronization beacon 420 may include at least one piece of information accompanying synchronization between the electronic device and/or at least one external electronic device. For example, the synchronization beacon 420 includes a frame control field indicating the function of the signal (e.g., beacon), a broadcast address, and the electronic device that transmitted the synchronization beacon 420. Media access control address (MAC address), cluster identifier, sequence control field, time stamp for the beacon frame, and the interval between the start points of the discovery window (DW) sections 410. It may include at least one of a beacon interval field indicating a beacon interval field and capability information of the electronic device that transmitted the synchronization beacon 420. In one embodiment, at least one electronic device that receives the synchronization beacon 420 may maintain synchronization with at least one other electronic device synchronized to the cluster based on reception of the synchronization beacon 420. In various embodiments, synchronization beacon 420 may further include an information element related to a proximity network, which may include content of a proximity service that may be provided via a proximity network, for example. there is.

In one embodiment, the service discovery frame 430 is a signal for advertising a proximity service between electronic devices synchronized to the cluster and/or at least one external electronic device and sharing information related to the proximity service based on a proximity network. It can function as According to the NAN standard, the service discovery frame 430 is a vendor specific public action frame and may include various fields. For example, the service discovery frame 430 may include at least one of a category field and an action field, and may further include an information element related to a proximity network. In one embodiment, at least one electronic device that receives the service discovery frame 430 may discover a proximity service advertised by the electronic device that transmitted the service discovery frame 430, and may detect a proximity service related to the discovered proximity service. Information can be obtained.

According to one embodiment, a specific electronic device functioning as a master device among the electronic devices synchronized to the cluster and/or at least one external electronic device operates in a section 440 other than the discovery window (DW) section 410 ( Example: A discovery beacon 450 may be transmitted in an interval between a plurality of discovery window (DW) sections 410. In one embodiment, the discovery beacon 450 may function as a cluster advertisement signal that is transmitted so that other electronic devices that do not participate in the cluster can discover the cluster. For example, the other electronic device that does not participate in the cluster discovers the cluster by performing a passive scan to detect the discovery beacon 450 transmitted from the master electronic device synchronized to the cluster, It is possible to decide whether to synchronize the cluster. In this regard, the discovery beacon 450 may include at least one piece of information for synchronizing to the cluster. For example, the discovery beacon 450 is a frame control field indicating the function of the signal (e.g., beacon), a broadcast address, and the electronic device that transmitted the discovery beacon 450. MAC address (media access control address), cluster identifier, sequence control field, time stamp for the beacon frame, and beacon interval field indicating the transmission interval of the discovery beacon 450. It may include at least one of an interval field) and capability information of the electronic device that transmitted the discovery beacon 450. In one embodiment, discovery beacon 450 may further include an information element related to a proximity network. The information element included in the discovery beacon 450 may include, for example, cluster grade information.

Figure 4 illustrates a case where a single channel (e.g., channel 6) of a single frequency band (e.g., 2.4 GHz band) is used as a common channel in the DW of a NAN cluster. However, according to one embodiment, a plurality of frequency bands ( Multiple channels (e.g., channels 6 and 149) in the 2.4Ghz band and 5Ghz band may be configured as DW at the same time. According to one embodiment, the channel in the 5Ghz band may be determined differently depending on the channel policy of each region. According to one embodiment, electronic devices included in a NAN cluster (e.g., electronic devices 310, 320a, 320b, and 320c in FIG. 3) perform beacon and service discovery in multiple DW sections configured in multiple frequency bands and channels. Frames can be transmitted and received.

FIG. 5 is a diagram illustrating the roles and state transitions of electronic devices within a cluster according to an embodiment.

According to one embodiment, electronic devices (e.g., electronic device 310 of FIG. 3, external electronic devices 320a, 320b, 320c) synchronized to a cluster (e.g., cluster 301 of FIG. 3) are connected to a master ( master) device 510, non-master sync device 530, and non-master non-sync device 550. You can have For example, according to the NAN standard, electronic devices can have the role and status of the master device 510 when configuring or participating in a cluster, and the role and status of the electronic devices are determined by satisfying the conditions according to the NAN standard. It can be switched based on availability. For example, the NAN standard defines conditions (e.g. RSSI and/or master rank) for changing the roles ((1), (2), (3), (4)) of electronic devices included in the cluster. However, hereinafter, all conditions defined in the NAN standard will be briefly explained rather than explained in detail.

According to one embodiment, the roles of electronic devices included in a NAN cluster may be determined based on master rank. For example, among electronic devices included in a NAN cluster, an electronic device with a large master rank value may become the master device 510.

[Equation 1]

Master Rank = Master Preference*2^56 + Random Factor*2^48 + MAC[5]*2^40 + … + MAC[0]

Equation 1 above may represent the master rank referred to in determining the level of a cluster. According to one embodiment, the master rank is a master preference (e.g., a value from 0 to 128), a random factor (e.g., a value from 0 to 255), and a media access control address (MAC address) ( It may be composed of factors (e.g., interface address of NAN electronic device). According to the NAN standard, the master rank according to the sum of the factors is calculated for each of the electronic devices synchronized to the cluster (e.g., the electronic device 310 of FIG. 3 and the external electronic devices 320a, 320b, and 320c). A specific electronic device with a relatively large master rank may have the role and status of a master device. Alternatively, the master rank may mean the size or level of the cluster grade. For example, if the master rank of a master electronic device synchronized to a cluster is relatively high (or large) to the master rank of another master electronic device synchronized to another cluster, the rank of the cluster is that of the other master electronic devices. It can be understood as being relatively high (or large) in the level of the cluster.

In various embodiments, the level of a cluster may be determined by a master rank calculated using only master preference among the factors constituting the master rank. If the master preference used when determining the rank of a cluster and the master preference used when determining the rank of another cluster have the same value, the rank relationship between the cluster and the other cluster is determined by the remaining factors constituting the master rank, such as a random factor ( It may be determined by a master rank calculated using at least one of a random factor and a media access control address (MAC address). In various embodiments, the level of a cluster may be determined based on at least one of the number of electronic devices synchronized to the cluster, the number of proximity services provided by the cluster, and the security level of the cluster, regardless of the master rank. For example, if the number of electronic devices synchronized to a cluster is large, the number of proximity services provided by the cluster is large, and/or the security level of the cluster is high (or large), then the cluster may have a high (or large) security level. , can be determined by the large) grade.

According to one embodiment, electronic devices synchronized to the cluster may determine whether to transmit a synchronization beacon (e.g., 420 in FIG. 4) and a discovery beacon (e.g., 450 in FIG. 4) depending on their respective roles and states. For example, the synchronization beacon may be transmittable by a master device 510 and a non-master sync device 530, and the discovery beacon may be transmitted by a master device 510. It may be possible to transmit by .

FIG. 6 is a diagram illustrating a signal transmission and reception form of an electronic device according to an embodiment of the present invention.

The first electronic device 600 may transmit a synchronization beacon and a service discovery frame within the synchronized communication section 610 (eg, discovery window) 610. The second electronic device 601, the third electronic device 603, and/or the fourth electronic device 605 within the cluster (e.g., cluster 301 in FIG. 3) communicates with the second electronic device 601, the third electronic device 603, and/or the fourth electronic device 605 through the synchronized communication section 610. 1 A synchronization beacon and a service discovery frame transmitted by the electronic device 600 can be received. According to the NAN standard, the second electronic device 601, the third electronic device 603, and/or the fourth electronic device 605 can maintain synchronization with other electronic devices in the cluster based on reception of the synchronization beacon. . Alternatively, the second electronic device 601, the third electronic device 603, and/or the fourth electronic device 605 discovers the service advertised by the first electronic device 600 by receiving the service discovery frame, and Service information can be obtained. In one embodiment, at least one electronic device 600, 601, 603 and/or 605 in the cluster operates in a wake state only in a communication section 610 that is synchronized on a time clock, and the synchronization Power consumption can be reduced by operating in a sleep state in sections 640 other than the synchronized communication sections 610 (e.g., interval sections between synchronized communication sections 610). Alternatively, in various embodiments, at least one electronic device (600, 601, 603, and/or 605) in the cluster is connected to a section other than the synchronized communication section 610 (e.g., an interval 640 between discovery windows (DW)). ), it is possible to operate a network with a communication method other than the low-power proximity communication of the NAN standard.

Figure 7 is a diagram illustrating a NAN service discovery protocol using BLE communication according to an embodiment.

According to release 3 of the NAN standard, the NAN electronic devices 701 and 703 (e.g., the electronic device 101 in FIG. 1 or the electronic device 200 in FIG. 2) use BLE (Bluetooth) when operating low-power proximity communication of the NAN standard. low energy) triggers can operate according to the NAN communication protocol. For example, in order to reduce the amount of power consumed when performing periodic passive scans, NAN electronic devices discover other nearby electronic devices by performing scanning based on BLE communication and use low-power proximity communication of the NAN standard. The other electronic device may determine synchronization for the synchronized cluster.

With reference to FIG. 7, a schematic flow of the BLE triggers NAN communication protocol is described, and the electronic device according to one embodiment is a provider (passive) electronic device 701 or a browser or seeker (mentioned below). active)) may correspond to the electronic device 703.

According to one embodiment, in operation 710, the seeker electronic device 703 may transmit a first BLE transport discovery service (TDS) advertisement packet M1 using BLE communication. For example, in order to advertise service information or service group information provided by the searcher electronic device 703, the searcher electronic device 703 includes the service information or service group information in a hash method. The first BLE TDS advertisement packet may be transmitted. According to one embodiment, the searcher electronic device 703 may hash service group information in the first BLE TDS advertisement packet using a bloom filter and transmit it. For example, the searcher electronic device 703 may transmit the first BLE TDS advertisement packet containing service group information related to a previously configured service group instead of service information. According to one embodiment, in operation 710, the provider electronic device 701 and the searcher electronic device 703 may have the NAN function deactivated.

According to one embodiment, in operation 720, the provider (Passive) electronic device 701 receives the first BLE TDS advertisement packet (M1) transmitted by the searcher electronic device 703 through a scanning operation using BLE communication. Can be received, and service group information included in the first BLE TDS advertisement packet can be confirmed. For example, in operation 720, the provider electronic device 701 uses the service group information included in the first BLE TDS advertisement packet and the service group information held by the provider electronic device 701 (e.g., registered in the BLE scan filter). Service group information) can be determined to match. According to one embodiment, in operation 720, the provider electronic device 701 and the searcher electronic device 703 may have the NAN function deactivated. For example, the provider electronic device 701 may recognize a service match through a scan while the NAN function is inactive (Provider scan hit (service matched) and NAN is off).

According to one embodiment, in operation 730, the provider electronic device 701 uses BLE communication to send a second BLE TDS advertisement packet (M2) containing service information or service group information owned by the provider electronic device 701 in a hash format. ) can be transmitted to the searcher electronic device 703. According to one embodiment, in operation 730, the provider electronic device 701 and the searcher electronic device 703 may have the NAN function disabled.

According to one embodiment, in operation 740, the seeker (Active) electronic device 703 performs a scanning operation using BLE communication to receive the second BLE TDS advertisement packet transmitted by the provider electronic device 701. It is possible to determine whether the service group information included in the second BLE TDS advertisement packet matches the service group information (e.g., service group information registered in the BLE scan filter) of the searcher electronic device 703. You can. According to one embodiment, in operation 740, the provider electronic device 701 and the searcher electronic device 703 may have the NAN function deactivated. For example, the seeker electronic device 703 may perform service match and BLE address interpretation through scan (seeker scan hit (service matched + resolved BLE addresses)).

According to one embodiment, in operation 750, if the service group information matches, the searcher electronic device 703 may connect to the provider electronic device 701 using BLE communication. For example, the searcher electronic device 703 may transmit the third BLE TDS advertisement packet (M3) to the provider electronic device 701 with matching service group information. According to one embodiment, in operation 750, the provider electronic device 701 and the searcher electronic device 703 may have the NAN function deactivated. According to one embodiment, in operation 750, the provider electronic device 701 and the searcher electronic device 703 may prepare to activate the NAN function.

According to one embodiment, in operation 751, the provider electronic device 701 may activate a NAN-based communication function (turn on NAN). For example, the provider electronic device 701, which has service group information matching the searcher electronic device 703, may activate a NAN-based communication function.

According to one embodiment, in operation 753, the searcher electronic device 703 may activate a NAN-based communication function (turn on NAN). According to one embodiment, in operation 753, the searcher electronic device 703 retrieves information (e.g., an icon and additional information (e.g., user name)) related to the provider electronic device 701 with matching service information or service group information. ) can be provided. For example, the searcher electronic device 703 may display icons and additional information (e.g., user name) for known devices and activate the NAN function (display icon + additional info(user name) if is a known devices and turns on NAN).

According to one embodiment, in operation 760, the searcher electronic device 703 and the provider electronic device 701 may perform NAN standard service discovery (NAN service discovery).

Although different from what is shown in FIG. 7, according to one embodiment, the provider electronic device 701 may activate the NAN function in operation 720 when matching the service group information included in the received first BLE TDS advertisement packet. , the searcher electronic device 703 may activate the NAN function in operation 740 in response to the received second BLE TDS advertisement packet. In this case, at least one of operations 750, 751, and 753 may be omitted.

Figure 8 is a diagram illustrating a BLE TDS packet according to one embodiment.

According to one embodiment, an electronic device (e.g., the electronic device 101 of FIG. 1 or the electronic device 200 of FIG. 2) performs NAN standard communication according to the BLE triggers NAN communication protocol specified in release 3 of the NAN standard. During operation, a BLE TDS packet 800 containing service group information provided by the electronic device can be transmitted using BLE communication. Below, description of the general configuration of the BLE TDS packet 800 defined in the BLE triggers NAN communication protocol specified in release 3 of the NAN standard will be omitted.

According to one embodiment, the electronic device may include a value generated by hashing service group information using a bloom filter 850 in the bloom filter 850. Alternatively, the electronic device may perform a scanning operation using the BLE communication to receive a BLE TDS packet 800 containing service group information provided by the other electronic device (e.g., a first external electronic device). You can. For example, the electronic device may obtain service group information based on the value of the Bloom filter 850 of the received BLE TDS packet 800.

In one embodiment, the electronic device may determine whether there is a match between the service group information in the BLE TDS packet 800 received from the other electronic device and the service group information possessed by the electronic device, and based on the determination result, the NAN-based You can control the activation of communication functions. For example, when the electronic device determines that service group information matches that of an external electronic device, it may activate a NAN-based communication function.

An electronic device (e.g., the electronic device 101 of FIG. 1, the electronic device 200 of FIG. 2, or the electronic device 300 of FIG. 3) according to an embodiment of the present disclosure includes a communication circuit (e.g., the electronic device 101 of FIG. 1). communication module 190, communication circuit 210 of FIG. 2), memory (e.g., memory 130 of FIG. 1, memory 220 of FIG. 2), and operatively connected to the communication circuit and the memory. ) may include a connected processor (e.g., the processor 120 in FIG. 1 and the processor 230 in FIG. 2). According to one embodiment, when the memory is executed, the processor synchronizes to a cluster for performing NAN (neighbor awareness networking)-based communication with at least one external electronic device through the communication circuit, and the communication circuit A service group that performs a NAN-based service discovery operation based on service information and at least one external electronic device included in the cluster, and includes at least one of the at least one external electronic device based on the service discovery operation. configures, shares service group information with an external electronic device included in the configured service group through the communication circuit, registers the service group information in a BLE (Bluetooth low energy) scan filter, and shares the service group information with the external electronic device included in the configured service group through the communication circuit. Instructions that perform NAN-based communication within a service group can be stored.

According to one embodiment, the instructions, when executed, control the processor to deactivate the NAN function of the electronic device included in the service group and the at least one external electronic device when communication within the service group is terminated. You can do it.

According to one embodiment, when the instructions are executed, when the processor restarts communication within the service group, BLE triggers the service based on the NAN communication protocol based on the service group information registered in the BLE scan filter. At least one external electronic device included in the group can be recognized.

According to one embodiment, when executed, the instructions may cause the processor to transmit a signal including a BLE TDS (Bluetooth low energy transport discovery service) packet including the service group information through the communication circuit.

According to one embodiment, when executed, the instructions may control the processor to activate the NAN function of at least one electronic device included in the service group through a signal including the BLE TDS packet.

According to one embodiment, when executed, the instructions may cause the processor to perform a NAN-based service discovery operation based on service group information and at least one external electronic device included in the synchronized service group.

According to one embodiment, the instructions are, when executed, when the processor receives a user input, terminates execution of a service-related application, there is no communication between electronic devices within the service group for more than a preset time, or the service group The NAN function of the electronic device included in the service group and the at least one external electronic device may be deactivated based on at least one of the power saving mode execution.

According to one embodiment, the electronic device may further include a display (eg, the display device 160 of FIG. 1). According to one embodiment, when the instructions are executed, the processor displays information on a service group recognized based on the BLE triggers NAN communication protocol or at least one external electronic device included in the service group through the display. You can do it.

According to one embodiment, the service group information includes at least one of service group profile ID, service group ID, service group key, service group validity period, service group member information, service information, service-related application information, or service role. It can contain one.

According to one embodiment, the service group information may include information on an expiration period. According to one embodiment, when the instructions are executed, the processor may delete the service group information when the expiration period expires.

An electronic device according to an embodiment of the present disclosure may include a communication circuit, a memory, and a processor operatively connected to the communication circuit and the memory. According to one embodiment, when the memory is executed, when the processor restarts communication within a pre-configured NAN (neighbor awareness networking)-based service group, the memory recognizes pre-stored service group information and configures the BLE scan filter. Based on the registered service group information, at least one external electronic device corresponding to the service group is recognized based on a BLE (Bluetooth low energy) triggers NAN communication protocol, and the electronic device and the recognized at least one external electronic device Controlling to activate the NAN function of the device, performing a NAN-based service discovery operation based on the electronic device and the at least one external electronic device and the service group information, and restoring the service group based on the service discovery And, instructions for performing NAN-based communication within the restored service group can be stored through the communication circuit.

Figure 9 is a flowchart of a NAN-based communication control method of an electronic device according to an embodiment.

According to one embodiment, in operation 910, an electronic device (e.g., the electronic device 101 of FIG. 1, the electronic device 200 of FIG. 2, or the electronic device 300 of FIG. 3) uses at least one external electronic device ( Example: A neighbor awareness networking (NAN) cluster (e.g., cluster 301 in FIG. 3) can be formed with the electronic devices 102 and 104 of FIG. 1 or the external electronic devices 320a, 320b and 320c of FIG. 3. there is.

According to one embodiment, an electronic device may form a NAN cluster with at least one external electronic device that supports the same service using the BLE (Bluetooth low energy) triggers NAN communication protocol. For example, the electronic device sends a first BLE TDS advertisement packet (M1) containing first service information (e.g., application name) corresponding to the application being executed (in service) to the external electronic device. Can be transmitted. According to one embodiment, an external electronic device waiting in BLE scan mode may receive the first BLE TDS advertisement packet. According to one embodiment, the external electronic device that received the first BLE TDS advertisement packet may determine whether the first service information included in the first BLE TDS advertisement packet is registered in the BLE scan filter of the external electronic device. According to one embodiment, when the application has an application corresponding to the first service information and the first service information is registered in the BLE scan filter, the external electronic device sends a second BLE advertisement packet (M1) corresponding to the received first BLE advertisement packet (M1). A BLE TDS advertisement packet (M2) can be transmitted to the electronic device. According to various embodiments, the external electronic device not only includes an application corresponding to the first service information, but also when the application corresponding to the first service information is running, or is capable of supporting a service corresponding to the first service information. In this case, the second BLE TDS advertisement packet (M2) corresponding to the received first BLE advertisement packet (M1) may be transmitted to the electronic device. According to one embodiment, the external electronic device may activate the NAN function and perform a NAN cluster synchronization operation while transmitting the second BLE TDS advertisement packet (M2). According to one embodiment, the electronic device may activate the NAN function in response to receiving the second BLE TDS advertisement packet (M2) and perform a NAN cluster synchronization operation. According to one embodiment, the electronic device and at least one external electronic device may configure a NAN cluster in a manner that follows a separate NAN protocol without using the BLE triggers NAN protocol. According to one embodiment, the electronic device may trigger the NAN function through various communication methods (eg, the first network 198 or the second network 199 in FIG. 1). For example, the electronic device and at least one external electronic device activate the NAN function through an out of band (OOB) method including a conventional BLE method, near field communication (NFC), or quick response (QR) method, You can configure a NAN cluster. As another example, the electronic device may activate the NAN function of at least one external electronic device through a server (e.g., server 108 of FIG. 1) and configure a NAN cluster.

According to one embodiment, in operation 920, the electronic device may perform service discovery. For example, the electronic device may perform service discovery based on first service information. According to one embodiment, the electronic device may transmit a subscribe message including first service information to at least one external electronic device included in the NAN cluster. According to one embodiment, an external electronic device included in a NAN cluster may transmit a publish message to the electronic device in response to a received subscription message. For example, the external electronic device may check the first service information included in the subscription message and, if it can provide a service corresponding to the first service information, transmit a publication message to the electronic device. For example, the publication message may include device information (such as device name, ID, or phone number information) or user information (such as the user's name, profile information, or account information).

According to one embodiment, in operation 930, the electronic device may configure a service group based on service discovery. According to one embodiment, when the electronic device receives a publication message from at least one external electronic device included in the NAN cluster, a user interface that includes information about the at least one external electronic device based on the information included in the publication message. can be provided. According to one embodiment, the electronic device may select an external electronic device to form a service group according to a user input through a user interface. According to one embodiment, the electronic device provides service to an external electronic device having the same account information or related account information (e.g., family account information) as the electronic device, based on the account information of the external electronic device included in the received published message. You can select electronic devices to form a group. According to one embodiment, the electronic device is an electronic device that configures a service group with external electronic devices that satisfy specified conditions based on information (e.g., phone number or contact information) of the external electronic device included in the issued message. You can select .

According to one embodiment, the electronic device may form a service group with at least one selected external electronic device. According to one embodiment, the electronic device may synchronize with at least one external electronic device based on service group information. For example, the electronic device may synchronize the time (eg, synchronized communication section 610) at which a message is transmitted or received with at least one external electronic device included in the service group. According to one embodiment, the service group information is at least one of a service group profile ID, service group ID, service group key, service group validity period, service group member information, service information, service-related application information, or service role. may include.

According to one embodiment, in operation 940, the electronic device may share service group information with an external electronic device included in the service group. According to one embodiment, the electronic device may store service group information and transmit the service group information to an external electronic device within the service group. For example, the electronic device may transmit a service discovery frame (SDF) (follow up) message including service group information to an external electronic device within the service group. As another example, the electronic device may transmit a NAN action frame containing service group information to an external electronic device within the service group. According to one embodiment, the electronic device may transmit a follow up (SDF) message including a service group key to an external electronic device. For example, the service group key may be included in the SDF message in a hash manner. For example, the service group key can be used to make communication within the service group secure by encrypting the SDF, NAF, and/or data frames in the service group. According to one embodiment, an electronic device may transmit information (eg, service group member information) of an electronic device belonging to a service group to an external electronic device within the service group. For example, information on electronic devices belonging to a service group may include device name and/or device address information. According to one embodiment, when service group information has a validity period, the electronic device and/or an external electronic device may delete the service group information whose validity period has elapsed.

According to one embodiment, in operation 950, the electronic device may register service group information (eg, service group ID) in the BLE scan filter. According to one embodiment, an external electronic device within a service group that has received service group information may register the received service group information (eg, service group ID) in the BLE scan filter. For example, each of the electronic device within the service group and at least one external electronic device may register the same service group information in the BLE scan filter. According to one embodiment, each of the electronic device and at least one external electronic device may register at least one service group information in the BLE scan filter. For example, if the electronic device and at least one external electronic device register a plurality of service group information in the BLE scan filter, the service group information corresponding to the device (e.g., provider device) that starts the NAN-based service is stored in the BLE scan filter. The NAN function of devices registered with can be activated. According to one embodiment, when the electronic device and the at least one external electronic device register a plurality of service group information in the BLE scan filter, the electronic device and the at least one external electronic device later register the service group and the registered service group when the NAN service starts. Related information or information related to services performed by a registered service group can be provided through the user interface. For example, the electronic device and at least one external electronic device may reconfigure (restore) the selected service group or service group corresponding to the service through the user interface. According to one embodiment, each of the electronic device and at least one external electronic device can set a priority when registering at least one service group information in the BLE scan filter. For example, when performing a NAN-based service based on a high-priority NAN-based service group, the service of the low-priority NAN-based service group may not be provided.

According to one embodiment, in operation 960, the electronic device may perform NAN-based communication within a service group. For example, electronic devices within a service group and external electronic devices may provide NAN-based services (eg, functions corresponding to first service information). For example, the electronic device may perform SDF exchange, NDP communication, ranging, or multicast services corresponding to NAN-based services.

Figure 10 is a flowchart of a NAN-based communication control method of an electronic device according to an embodiment.

According to one embodiment, in operation 1005, an electronic device (eg, the electronic device 101 of FIG. 1 or the electronic device 200 of FIG. 2) may recognize the start of a NAN service. For example, an electronic device may receive a user's input to start a NAN-based service.

According to one embodiment, in operation 1010, the electronic device may transmit a BLE TDS packet. For example, an electronic device may broadcast BLE TDS packets based on the BLE triggers NAN protocol. For example, the electronic device may transmit the first BLE TDS packet including service information to at least one nearby external electronic device. According to one embodiment, the electronic device may receive a second BLE TDS packet from an external electronic device having matching service information.

According to one embodiment, in operation 1015, the electronic device may activate the NAN function. For example, the electronic device may activate the NAN function in response to the second BLE TDS packet received from the external electronic device. For example, electronic devices can synchronize with a NAN cluster using the NAN function. For example, the electronic device may synchronize the time for sending and receiving messages with at least one external electronic device included in the NAN cluster.

According to one embodiment, in operation 1020, the electronic device may perform service discovery. For example, the electronic device may transmit a subscribe message including service information to an external electronic device included in the NAN cluster. For example, an electronic device may receive a publish message from an external electronic device that matches service information.

According to one embodiment, in operation 1025, the electronic device may determine a service group. For example, the electronic device may provide information on external electronic devices corresponding to the received published message. For example, the electronic device may display information (eg, device name or device description) of an external electronic device matching the service information on the display. For example, the electronic device may select external electronic devices to form a service group based on user input or specified conditions. For example, an electronic device may form a service group with selected external electronic devices.

According to one embodiment, in operation 1030, the electronic device may store service group information for the configured service group and share the service group information with an external electronic device within the service group. According to one embodiment, service group information may include a service group ID. For example, the service group ID can be set according to user input.

According to one embodiment, the electronic device may share service group information with an external electronic device and then store information used to provide a NAN service within the service group. For example, the electronic device may grant a service group profile ID to a service group. For example, the electronic device may store service information and service discovery results (eg, service info detail) performed by the service group. For example, an electronic device can store the role played by each electronic device within a service group. For example, when the electronic device transmits content to a first external electronic device and a second external electronic device, and the first external electronic device and the second external electronic device perform a service of outputting the content, the electronic device Information indicating that the device serves as a source for transmitting content and that the first external electronic device and the second external electronic device serve as a sink for outputting content may be stored. According to one embodiment, the electronic device may store the service group profile ID, service information, service discovery performance results, and information on the roles of the electronic devices by including them in the service group information, or store them separately. According to one embodiment, the electronic device may share the stored information with electronic devices within a service group.

According to one embodiment, in operation 1035, the electronic device may register service group information (eg, service group ID) in the BLE scan filter. For example, by registering service group information in the BLE scan filter, the electronic device can be used to later synchronize with the NAN cluster based on the BLE triggers NAN protocol. According to one embodiment, the electronic device activates the NAN function of the electronic device included in the NAN cluster and external electronic devices based on the conventional BLE method as well as the BLE triggers NAN protocol by registering service group information in the BLE scan filter. can do.

According to one embodiment, in operation 1040, the electronic device may perform NAN-based communication within a service group. For example, an electronic device may provide a service corresponding to service information together with external electronic devices within a service group. According to one embodiment, at least some of the electronic devices and at least one external electronic device included in the service group may first perform NAN-based communication, and then the remaining electronic devices may perform NAN-based communication. For example, at least some of the electronic devices included in the service group and at least one external electronic device perform NAN-based communication, thereby reducing unnecessary power or resource consumption within the service group. According to one embodiment, the electronic device included in the service group and at least one external electronic device may be included in the first group and/or the second group within the service group. For example, the service group may include a first group including at least one of an electronic device and at least one external electronic device, and a second group including another at least one of an electronic device and at least one external electronic device. . According to one embodiment, operation scheduling may be possible for each first group and/or second group within a service group. For example, using NAN, a first group may perform NAN communication for distance determination at a first time, and a second group may perform NAN communication for distance determination at a second time.

According to one embodiment, in operation 1045, the electronic device may recognize a NAN service interruption. For example, an electronic device may cause a NAN service interruption when an application related to the service being provided is terminated, a user input stops the NAN service, there is no communication within the service group for more than a specified time, or the service group enters sleep mode. It can be recognized. For example, the power saving mode of a service group may be a mode to reduce power consumption within the service group. For example, the power saving mode may include a state in which a service being provided within a service group is temporarily suspended, or an electronic device in the service group and/or an external electronic device cannot provide a NAN service. According to one embodiment, the electronic device may recognize a NAN service interruption when a specified time has elapsed since service provision began or when the electronic device leaves the specified location.

According to one embodiment, in operation 1050, the electronic device may transmit a service interruption message to an external electronic device within the service group.

According to one embodiment, in operation 1055, the electronic device may disable the NAN function. For example, the electronic device may disable at least some of the NAN-related functions, or disable at least some components related to the NAN functions. For example, the electronic device may switch at least some or at least some components of the NAN-related functions to a sleep mode.

Figure 11 is a flowchart of a NAN-based communication control method according to an embodiment.

11 shows that an electronic device (device A 1101) (e.g., the electronic device 101 of FIG. 1, the electronic device 200 of FIG. 2, or the electronic device 300 of FIG. 3) is connected to external electronic devices (device B). (1103), device C (1105), device D (1107), and device E (1109)) and a NAN cluster 1100 are shown. In FIG. 11, five electronic devices are shown as configuring the NAN cluster 1100, but according to various embodiments, the present invention is not limited to this, and the electronic device may form the NAN cluster 1100 with at least one external electronic device. .

According to one embodiment, in operation 1110, the electronic device (device A 1101) may recognize the start of the NAN service. For example, device A (1101) may receive a user input to start a NAN-based service.

According to one embodiment, in operation 1113, device A (1101), device B (1103), device C (1105), device D (1107), and device E (1109) create a NAN cluster based on the BLE triggered NAN protocol. It can be synchronized to (1100). For example, device A (1101) may hash the service information using a bloom filter and include it in the first BLE TDS advertisement packet (e.g., M1 in FIG. 7). For example, device A (1101) sends the first BLE TDS advertisement packet (M1) containing service information to device B (1103), device C (1105), device D (1107), and device E (1109). Can be transmitted.

According to one embodiment, device B (1103), device C (1105), device D (1107), and device E (1109) support the same or similar service as device A (1101) or an application related to the same service. may include. For example, device B (1103), device C (1105), device D (1107), and device E (1109) may register corresponding service information in the BLE scan filter. According to one embodiment, device B (1103), device C (1105), device D (1107), and device E (1109) include the service information of the received first BLE TDS advertisement packet (M1) in the BLE scan filter. If it matches the registered service information, a second BLE TDS advertisement packet (e.g., M2 in FIG. 7) can be transmitted to device A (1101). According to one embodiment, device B (1103), device C (1105), device D (1107), and device E (1109) transmit a second BLE TDS advertisement packet (M2) to device A (1101) Together, you can activate the NAN function. According to one embodiment, device A (1101) may activate the NAN function in response to receiving the second BLE TDS advertisement packet. According to another embodiment, device A (1101) may activate the NAN function while transmitting the first BLE TDS advertisement packet. According to one embodiment, device A (1101), device B (1103), device C (1105), device D (1107), and device E (1109) that have activated the NAN function synchronize the NAN cluster (1100). You can.

According to one embodiment, in operations 1115 and 1120, device A (1101), device B (1103), device C (1105), device D (1107), and device E (1109) perform service discovery based on the NAN protocol. It can be done. According to one embodiment, in operation 1115, device A (1101) sends a subscription message including service information to device B (1103), device C (1105), device D (1107), and device E (1109). can be transmitted. According to one embodiment, in operation 1120, each of device B (1103), device C (1105), device D (1107), and device E (1109) matches the service supported by the service information included in the received subscription message. If so, a publish message can be transmitted to device A (1101). According to one embodiment, the published message transmitted by device B (1103), device C (1105), device D (1107), and device E (1109) is transmitted by device B (1103), device C (1105), and device D. (1107), and information of device E (1109) (e.g., device name, user name, device address (e.g., NMI/NDI/WLAN address, or Wi-Fi P2P address), user's profile information (e.g., introductory message) , business card, or photo), the user's phone number, and/or the user's account information).

According to one embodiment, in operation 1123, at least some devices among device A (1101), device B (1103), device C (1105), device D (1107), and device E (1109) configure a service group. You can. According to one embodiment, in operation 1123, device A (1101) sends each device (e.g., device B (1103), device C (1105), Information on device D (1107) and device E (1109) can be provided through a user interface. According to one embodiment, device A (1101) may select a device to form a service group (i.e., a service target device) according to a user input through a user interface. According to one embodiment, when device A (1101) selects a specific device according to the user input, it can determine the ID of the service group according to the user input. As another example, device A (1101) does not provide a user interface and may have a relationship set to a contact based on specified conditions (e.g., a device having the same user account as device A (1101), a device having a family account, or a phone number ( A device that satisfies (e.g., a device with family, friends) can be selected as a device to form a service group. Hereinafter, the description will be made assuming that device C (1105) and device E (1109) are selected and device A (1101), device C (1105), and device E (1109) form a service group.

According to one embodiment, in operation 1125, device A (1101) may share service group information with the selected devices (device C (1105) and device E (1109)) that will form the service group. According to one embodiment, service group information may include a service group ID, service group key, group member information, and validity period. For example, device A (1101) may transmit a follow up (SDF) message including service group information to device C (1105) and device E (1109). As another example, device A (1101) may transmit a NAN action frame including service group information to device C (1105) and device E (1109).

According to one embodiment, device A (1101) may share a service group key with devices (device C (1105) and device E (1109)) within the service group. Device A (1101) can process the service group key using a hash method and transmit it to device C (1105) and device E (1109). For example, the service group key can be used to perform secure communication by encrypting SDF, NAF, and data frames used in communication within the service group. According to one embodiment, the service group key may include an independent key for each of the SDF, NAF, and data frame.

According to one embodiment, device A (1101) may share service group member information with device C (1105) and device E (1109). For example, service group member information may include at least one of the name, address, user, account, or profile information of each device belonging to the service group. For example, device A (1101), device C (1105), and device E (1109) share service group member information, so that each device belonging to the service group recognizes the information of other devices belonging to the service group. can do.

According to one embodiment, when the service group information includes an expiration date, each of device A (1101), device C (1105), and device E (1109) belonging to the service group displays service group information whose expiration date has elapsed. It can be deleted.

According to one embodiment, in operation 1130, device A (1101), device C (1105), and device E (1109) belonging to the service group may store service group information. According to one embodiment, device A (1101), device C (1105), and device E (1109) may register service group information (eg, service group ID) in the BLE scan filter. For example, device A (1101), device C (1105), and device E (1109) register service group information in the BLE scan filter to quickly and easily reconfigure the service group based on the BLE triggers NAN protocol later. It can be used to do this.

According to one embodiment, in operation 1135, device A (1101), device C (1105), and device E (1109) perform NAN protocol-based communication (e.g., SDF/NDP/Ranging) within a service group. You can.

According to one embodiment, in operation 1140, device A (1101) may recognize a NAN service interruption. For example, device A (1101) may recognize a user input to terminate or temporarily suspend the NAN service being provided. For example, device A (1101) may recognize the termination of an application providing a NAN service. For example, device A (1101) can recognize when there is no communication within the service group for more than a specified time. For example, device A (1101) may recognize when a service group (or a device within a service group) switches to power saving mode according to a user input.

According to one embodiment, in operation 1145, device A (1101) may transmit a message notifying service termination or service suspension to device C (1105) and device E (1109). For example, device A (1101) may transmit an SDF message or a NAF message including a notification informing of service interruption to device C (1105) and device E (1109).

According to one embodiment, in operation 1150, device A (1101), device C (1105), and device E (1109) may disable the NAN function.

According to various embodiments, Figure 11 illustrates that device A (1101) initiates operations related to NAN service start, NAN cluster synchronization, service group configuration, and NAN service interruption, but each operation is performed by device B (1103). ), device C (1105), device D (1107), and/or device E (1109).

Figure 12 is a flowchart of a NAN-based communication control method of an electronic device according to an embodiment. For example, FIG. 12 explains operations when electronic devices within a service group restart a NAN service that was stopped after registering service group information in the BLE scan filter, as described in FIG. 10.

According to one embodiment, in operation 1205, an electronic device (eg, the electronic device 101 of FIG. 1 or the electronic device 200 of FIG. 2) may recognize the start of a NAN service. For example, the electronic device may receive a user's input to restart a NAN-based service that was interrupted or terminated. For example, the electronic device may receive a user input to start a NAN service based on a previously formed service group. For example, the electronic device may output a user interface that includes information about previously configured service groups and/or services performed in the service groups. For example, the user interface may include information (e.g., icon, user name, or device ID) corresponding to an electronic device or an external electronic device included in the service group. For example, the user interface may include information related to a service group (e.g., service group information (e.g., service group ID, service group name)). As another example, the user interface may include information related to the service being provided by the service group (eg, multimedia streaming service performed within the service group). As another example, the user interface may include information (eg, a list including device ID or device name) about at least one external electronic device included in the service group.

According to one embodiment, the electronic device may select a specific device (e.g., an electronic device and/or at least one external electronic device), a service group (e.g., information related to a service group), or a service (e.g., a service and may receive user input to select relevant information). For example, when a streaming service being provided by a service group is paused, the electronic device may receive a user input to resume the streaming service through a user interface. According to one embodiment, the electronic device may recognize the resumption of a NAN-based service that was temporarily suspended (eg, resumption of communication within a service group or deactivation of a power saving mode).

According to one embodiment, in operation 1210, the electronic device may recognize pre-stored service group information. For example, the electronic device may recognize at least one of a service group ID, a service group profile, service group member information, service information related to the service group, or the roles of electronic devices within the service group.

According to one embodiment, in operation 1215, the electronic device may transmit a BLE TDS packet based on service group information. For example, service group information, unlike service information commonly used in the BLE TDS triggers NAN protocol, can be used to activate the NAN function by distinguishing only electronic devices belonging to a previously configured service group. For example, the electronic device may transmit the first BLE TDS advertisement packet including service group information (eg, service group ID) to at least one external electronic device. For example, among the external electronic devices that received the first BLE TDS advertisement packet, the external electronic device that previously registered service group information in the BLE scan filter may transmit the second BLE TDS advertisement packet to the electronic device.

According to one embodiment, in operation 1220, the electronic device may activate the NAN function. For example, in operation 1215, the electronic device activates the NAN function while transmitting a BLE TDS packet (first BLE TDS advertisement packet) to the external electronic device, or receives a response from the external electronic device (second BLE TDS advertisement packet). If received, the NAN function can be activated. For example, in operation 1220, the external electronic device storing service group information matching the service group information included in the first BLE TDS advertisement packet transmitted by the electronic device transmits the second BLE TDS advertisement packet to the electronic device. In addition, the NAN function can be activated. For example, based on service group information, only electronic devices that previously belonged to the service group can selectively activate the NAN function and form a NAN cluster.

According to one embodiment, in operation 1225, the electronic device may perform service discovery based on service group information. According to one embodiment, an electronic device may perform service discovery through SDF exchange. For example, the electronic device may recognize an external electronic device belonging to the current NAN cluster among service group members. According to one embodiment, the electronic device can configure a NAN service group in operation 1230 without exchanging separate messages based on service group information and related information (e.g., service group member information, role information of electronic devices in the service group). there is.

According to one embodiment, in operation 1230, the electronic device may configure a service group. For example, the electronic device can restore a previously configured service group.

According to one embodiment, in operation 1235, the electronic device may perform NAN-based communication within a service group. For example, an electronic device may provide a service corresponding to service information together with external electronic devices within a service group. According to one embodiment, an electronic device can perform secure communication within a service group using a service group key.

According to one embodiment, the electronic device restores the service group by performing BLE triggers NAN protocol and service discovery based on service group information, thereby preventing the NAN function of external electronic devices that do not belong to the service group from being activated. Accordingly, the electronic device can improve the speed of reconfiguring the service group and reduce current consumption when operating the service group and current or resource consumption of unnecessary electronic devices.

Figure 13 is a flowchart of a NAN-based communication control method according to an embodiment. For example, FIG. 13 illustrates operations when devices in a service group restart a NAN service that was stopped after registering service group information in the BLE scan filter, as described in FIG. 11. According to one embodiment, device A (1301), device C (1305), and device E (1309) are devices that have previously formed a service group and each store service group information (e.g., service group ID). You may be doing it. For example, device A (1301), device C (1305), and device E (1309) may have service group information registered in the BLE scan filter. For example, device A (1301), device B (1303), device C (1305), device D (1307), and device E (1309) are similar to device A (1101) and device B (1103) described in FIG. 11. , may correspond to device C (1105), device D (1107), and device E (1109), respectively.

According to one embodiment, in operation 1310, the electronic device (device A 1301) (e.g., the electronic device 101 of FIG. 1 or the electronic device 200 of FIG. 2) may recognize the start of the NAN service. For example, device A (1301) (1101) may receive a user input to restart a NAN-based service that was interrupted or terminated. For another example, device A (1301) may recognize that the power saving mode for the service group is disabled.

According to one embodiment, in operation 1313, device A (1301) uses device B (1303), device C (1305), device D (1307), and device E (1303) according to the BLE triggered NAN protocol based on service group information. 1309), the first BLE TDS advertisement packet (e.g., M1 in FIG. 7) may be transmitted. For example, device A (1301) may hash the service group information and include it in the first BLE TDS advertisement packet. According to one embodiment, in operation 1313, an external electronic device (e.g., device B (1303), device C (1305), device D (1307), and device E (1309)) that received the first BLE TDS advertisement packet, respectively. Can determine whether the service group information included in the received first BLE TDS advertisement packet (M1) matches the service information registered in the BLE scan filter. For example, in FIG. 13, device B (1303) and device D (1307) are service not-matched, and device C (1305) and device E (1309) are service matched ( Assume service matched. According to one embodiment, device C (1305) and device E (1309) that determine that the service matches may activate the NAN function (NAN enable).

According to one embodiment, in operation 1315, device C (1305) and device E (1309) match service group information included in the received first BLE TDS advertisement packet (M1) with service information registered in the BLE scan filter. Can transmit a second BLE TDS advertisement packet (e.g., M2 in FIG. 7) to device A (1301). As a comparative example, when using service information (e.g., first service name) commonly used in the BLE triggers NAN protocol, device B (1303), device C (1305), and device D ( 1307), and device E 1309 may both respond to the first BLE TDS advertisement packet of device A 1301. According to an embodiment of the present disclosure, by performing the BLE triggers NAN protocol based on service group information, only devices belonging to the previously configured service group (e.g., device C (1305) and device E (1309)) are connected to the device. It may respond to the first BLE TDS advertisement packet of A (1301).

According to one embodiment, in operation 1320, device A (1301), device C (1305), and device E (1309), which exchanged BLE TDS advertisement packets containing service group information, may activate the NAN function. For example, device B (1303) and device D (1307) that do not have service group information may not activate the NAN function. According to one embodiment, devices unrelated to the NAN service of the service group to be provided (device B 1303 and device D 1307) do not activate the NAN function, thereby enabling devices unrelated to the NAN service of the service group. Unnecessary current or resource consumption in the field can be reduced.

According to one embodiment, in operation 1325, device A 1301, device C 1305, and device E 1309 may synchronize the NAN cluster based on the activated NAN function.

According to one embodiment, in operations 1330 and 1335, device A (1301), device C (1305), and device E (1309) may perform service discovery. According to one embodiment, device A (1301) sends service information (e.g., first service name or second service name) or service group information (e.g., service group ID) to device C (1305) and device E (1309). A subscription message containing can be transmitted. According to one embodiment, in operation 1335, device C (1305) and device E (1309) may transmit a publish message including service information to device A (1301) in response to the subscription message.

According to one embodiment, service group information may include service information (eg, service name) performed by the service group, service group member information, or roles of devices within the service group. According to one embodiment, when the service group information includes information related to a service previously performed in the service group, the service discovery operations of 1130 and 1135 may be omitted. For example, device A (1301), device C (1305), and device E (1309) may perform operation 1340 according to the service and role previously performed within the service group.

According to one embodiment, in operation 1340, device A (1301), device C (1305), and device E (1309) may perform NAN-based communication within the reconfigured service group. For example, device A (1301), device C (1305), and device E (1309) provide NAN-based services (e.g., SDF exchange, NDP communication, ranging, or multicast service). can be performed.

According to various embodiments, Figure 13 shows that device A (1301) initiates operations related to NAN service start, service group configuration (e.g., recognition of external devices belonging to the service group), and NAN service performance (resumption). As described, each operation may be initiated by at least one of device C (1305) and/or device E (1309) belonging to the service group.

The NAN-based communication control method of an electronic device according to an embodiment of the present disclosure includes the operation of synchronizing to a cluster for performing NAN (neighbor awareness networking)-based communication with at least one external electronic device through a communication circuit, An operation of performing a NAN-based service discovery operation based on service information and at least one external electronic device included in the cluster through a communication circuit, including at least one of at least one external electronic device based on the service discovery operation. configuring a service group, sharing service group information with at least one external electronic device included in the configured service group through the communication circuit, and registering the service group information with a BLE (Bluetooth low energy) scan filter. It may include an operation of performing NAN-based communication within the service group through the communication circuit.

According to one embodiment, the method may further include controlling to deactivate the NAN function of the electronic device included in the service group and the at least one external electronic device when communication within the service group is terminated. there is.

According to one embodiment, when restarting communication within the service group, the method triggers at least one service group included in the service group based on the NAN communication protocol based on the service group information registered in the BLE scan filter. It may further include an operation of recognizing an external electronic device.

According to one embodiment, the operation of synchronizing to the service group may include transmitting a signal including a BLE TDS (Bluetooth low energy transport discovery service) packet including the service group information through the communication circuit. there is.

According to one embodiment, the operation of synchronizing to the service group may include controlling to activate the NAN function of at least one electronic device included in the service group through a signal including the BLE TDS packet. .

According to one embodiment, the method may include performing a NAN-based service discovery operation based on service group information and at least one external electronic device included in the synchronized service group.

According to one embodiment, the method includes at least one of user input, termination of execution of a service-related application, when there is no communication between electronic devices in the service group for more than a preset time, or execution of a power saving mode of the service group. It may include an operation of deactivating the NAN function of the electronic device and the at least one external electronic device included in the service group based on .

According to one embodiment, the method may include displaying information on a service group recognized based on the BLE triggers NAN communication protocol or at least one external electronic device included in the service group through a display. .

According to one embodiment, the service group information includes at least one of service group profile ID, service group ID, service group key, service group validity period, service group member information, service information, service-related application information, or service role. It can contain one.

Electronic devices according to various embodiments disclosed in this document may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the above items, unless the relevant context clearly indicates otherwise. 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 phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one component from another, and to refer to those components in other respects (e.g., importance or order) is not limited. One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” When mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through 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 block, component, or circuit, for example. A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are one or more instructions stored in a storage medium (e.g., built-in memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). It may be implemented as software (e.g., program 140) including these. For example, a processor (e.g., processor 120) of a device (e.g., electronic device 101) may call at least one command among one or more commands stored from a storage medium and execute it. This allows the device to be operated to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed 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-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves). This term refers to cases where data is stored semi-permanently in the storage medium. There is no distinction between temporary storage cases.

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

According to various embodiments, each component (eg, module or program) of the above-described components may include a single entity or a plurality of entities. According to various embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component of the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, or omitted. Alternatively, one or more other operations may be added.

Claims (20)

In electronic devices,
communication circuit;
Memory; and
a processor operatively coupled to the communication circuitry and the memory;
The memory, when executed, the processor,
Synchronizing to a cluster for performing NAN (neighbor awareness networking)-based communication with at least one external electronic device through the communication circuit,
Perform a NAN-based service discovery operation based on service information and at least one external electronic device included in the cluster through the communication circuit,
Configure a service group including at least one of at least one external electronic device based on the service discovery operation,
Share service group information with an external electronic device included in the configured service group through the communication circuit,
Register the service group information in the BLE (Bluetooth low energy) scan filter,
Perform NAN-based communication within the service group through the communication circuit,
An electronic device that stores instructions for controlling to deactivate a NAN function of the electronic device included in the service group and the at least one external electronic device when terminating communication within the service group.
delete In claim 1,
When the instructions are executed, the processor
When restarting communication within the service group, an electronic device configured to recognize at least one external electronic device included in the service group based on the BLE triggers NAN communication protocol based on the service group information registered in the BLE scan filter. .
In claim 3,
When the instructions are executed, the processor
An electronic device that transmits a signal including a BLE TDS (Bluetooth low energy transport discovery service) packet including the service group information through the communication circuit.
In claim 4,
When the instructions are executed, the processor
An electronic device that controls activating the NAN function of at least one electronic device included in the service group through a signal including the BLE TDS packet.
In claim 3,
When the instructions are executed, the processor
An electronic device that performs a NAN-based service discovery operation based on service group information and at least one external electronic device included in the synchronized service group.
In claim 1,
When the instructions are executed, the processor
Electronic devices included in the service group based on at least one of user input, termination of execution of a service-related application, no communication between electronic devices in the service group for more than a preset time, or execution of a power saving mode of the service group. An electronic device that disables the NAN function of the device and the at least one external electronic device.
In claim 3,
further comprising a display,
When the instructions are executed, the processor
An electronic device that displays information about a service group recognized based on the BLE triggers NAN communication protocol or at least one external electronic device included in the service group through the display.
In claim 1,
The service group information is
An electronic device including at least one of a service group profile ID, service group ID, service group key, service group validity period, service group member information, service information, service-related application information, or service role.
In claim 1,
The service group information includes information on the expiration period,
When the instructions are executed, the processor
An electronic device that deletes the service group information when the expiration period expires.
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