WO2022225194A1

WO2022225194A1 - Electronic device and method for transmitting advertisement signal

Info

Publication number: WO2022225194A1
Application number: PCT/KR2022/003815
Authority: WO
Inventors: 박천호; 강남용; 최종무
Original assignee: 삼성전자 주식회사
Priority date: 2021-04-22
Filing date: 2022-03-18
Publication date: 2022-10-27
Also published as: KR20220145635A

Abstract

An electronic device and method for transmitting an advertisement signal are disclosed. The electronic device comprises: a near-field communication module; and at least one processor functionally connected to the near-field communication module. The at least one processor may be configured to: detect disconnection between the electronic device and a first external electronic device; if disconnection between the electronic device and the first external electronic device is detected, transmit an advertisement signal by means of the near-field communication module; receive at least one scan request signal corresponding to the advertisement signal from at least one second external electronic device by means of the near-field communication module; change at least one configuration parameter relating to the transmission of the advertisement signal on the basis of the reception frequency of the scan request signal; and control the transmission of the advertisement signal by means of the near-field communication module on the basis of the changed configuration parameter.

Description

Electronic device for transmitting advertisement signal and method therefor

Various embodiments of the present disclosure relate to an electronic device and method for transmitting an advertisement signal.

Wireless communication systems are being developed extensively to provide various types of communication services, such as voice or data. In general, a wireless communication system shares available system resources (eg, time resources, frequency resources, bandwidth resources, or output power resources) to support communication with multiple users. is the system Multiple access systems are, for example, code division multiple access (CDMA) systems, frequency division multiple access (FDMA) systems, time division multiple access (TDMA) systems, orthogonal Frequency division multiple access (orthogonal frequency division multiple access: OFDMA) system, single carrier-frequency division multiple access (SC-FDMA) system, and multiple carrier-frequency division multiple access (multi carrier frequency division multiple access) : MC-FDMA) system.

Tracking includes techniques that can use an external electronic device carried by a user to track the location of a designated electronic device (or may also be referred to as a tracker). For example, a user may use GPS technology to determine the location of a tracker device. In another example, a user may attach a tracker device to an important item, such as a key or wallet, and use the tracker device's functionality to track the item (eg, in a lost state). In another example, the tracker device detects loss based on the connection state with the external electronic device, and the broadcast signal used to track its location is called nearby anonymous devices (or scanner device). can be transmitted) so that it can be received.

Tracking may be performed by various low-power communication technologies, and as an example, Bluetooth low energy (BLE) may be used. In Bluetooth Low Energy, a broadcast technique called Advertisement enables the discovery of tracker devices. According to the Bluetooth standard, advertisement operation can be broadcast at variable intervals, and transmission power can be adjusted. It has the advantage of being able to further increase

A user may lose the electronic device while carrying and using the electronic device. For example, when the distance between the external electronic device and the electronic device carried by the user is out of a specified range, the electronic device may detect that the connection state with the external electronic device is disconnected and determine the lost state. The electronic device may be a small electronic device, or, for example, a wearable device such as an ear microphone, a headset, or a smart watch, or an electronic device capable of short-range communication with an external electronic device, and may be difficult to find when lost. In addition, when the electronic device is lost, it may be searched for, connected to, and stolen by another external electronic device of another user.

The electronic device that detects the lost state connects with at least one anonymous external electronic device located nearby through an advertisement and a scan operation through Bluetooth communication, so that the at least one external electronic device is connected to the electronic device. You can upload the information needed to track the location of the server. One or a plurality of external electronic devices that detect an advertisement signal broadcast by the electronic device may exist in the vicinity of the electronic device, and a signal including location information of the electronic device is uploaded to the server in large quantities by the plurality of external electronic devices. This can lead to server traffic overload. In addition, in a situation where the server upload by external electronic devices is not performed, the electronic device transmits advertisement signals unnecessarily and frequently, which causes excessive battery consumption of the electronic device, thereby reducing the probability of recovering the electronic device. problems could arise.

According to various embodiments, an advertisement operation of the electronic device may be controlled when the electronic device is lost.

According to various embodiments, the electronic device may change setting parameters applied to transmit an advertisement signal by estimating server traffic generated by nearby external electronic devices.

In an embodiment, the electronic device includes a short-range communication module and at least one processor functionally connected to the short-range communication module, wherein the at least one processor detects a disconnection between the electronic device and the first external electronic device, , when the disconnection of the connection between the electronic device and the first external electronic device is detected, an advertisement signal is transmitted through the short-range communication module, and the advertisement signal is transmitted from at least one second external electronic device through the short-distance communication module Receive a corresponding at least one scan request signal, change at least one setting parameter related to transmission of the advertisement signal based on a reception frequency of the scan request signal, and based on the changed setting parameter, the short-range communication and may be configured to control the transmission of the advertisement signal through the module.

According to an embodiment, a method of transmitting an advertisement signal by an electronic device includes detecting a disconnection between the electronic device and a first external electronic device, and detecting the disconnection between the electronic device and the first external electronic device, transmitting an advertisement signal through the short-range communication module; receiving at least one scan request signal corresponding to the advertisement signal from at least one second external electronic device through the short-range communication module; Changing at least one setting parameter related to transmission of the advertisement signal based on the reception frequency of the request signal, and controlling transmission of the advertisement signal through the short-distance communication module based on the changed setting parameter may include.

1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure;

2 is a view for explaining a connection between an electronic device and an external electronic device according to an exemplary embodiment.

3 is a diagram schematically illustrating a tracking operation of an electronic device according to an exemplary embodiment.

4 is a signal flow diagram illustrating an active scan-based tracking operation according to an embodiment.

5 is a block diagram illustrating a configuration of an external electronic device that performs a scan operation according to an exemplary embodiment.

6 is a block diagram illustrating a configuration of an electronic device that performs an advertisement operation according to an exemplary embodiment.

7 is a timing diagram illustrating an advertisement operation according to an embodiment.

8 is a diagram for explaining a format of an advertisement signal according to an embodiment.

9 is a flowchart illustrating a procedure for controlling transmission of an advertisement signal in an electronic device according to various embodiments of the present disclosure;

10 is a flowchart illustrating an operation of changing setting parameters for an advertisement signal in an electronic device according to various embodiments of the present disclosure;

11 is a flowchart illustrating an operation of changing setting parameters for an advertisement signal in an electronic device according to various embodiments of the present disclosure;

12 is a diagram for explaining a setting change according to a server update policy according to an embodiment.

13 is a view for explaining a server update by a scanner device according to an embodiment.

14 is a diagram for explaining an expected server update value according to an embodiment.

15 is a view for explaining a change of setting parameters according to the movement of the tracker device according to an embodiment.

Terms used in this document are only used to describe specific embodiments, and may not be intended to limit the scope of other embodiments. The singular expression may include the plural expression unless the context clearly dictates otherwise. All terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art of the present invention. Commonly used terms defined in the dictionary may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in this document, are not interpreted in an ideal or excessively formal meaning . In some cases, even terms defined in this document cannot be construed to exclude embodiments of the present invention.

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments of the present disclosure.

1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments. Referring to FIG. 1 , in a network environment 100 , an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with at least one of the electronic device 104 and the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input module 150 , a sound output module 155 , a display module 160 , an audio module 170 , and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or an antenna module 197 . In some embodiments, at least one of these components (eg, the connection terminal 178 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components (eg, sensor module 176 , camera module 180 , or antenna module 197 ) are integrated into one component (eg, display module 160 ). can be

The processor 120, for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be stored in , process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 . According to an embodiment, the processor 120 is a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 101 includes the main processor 121 and the sub-processor 123 , the sub-processor 123 uses less power than the main processor 121 or is set to be specialized for a specified function. can The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The secondary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

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 . The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a 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 an application 146 .

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

The sound output module 155 may output a sound signal to the outside of the electronic device 101 . The sound output module 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. The receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

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

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input module 150 or an external electronic device (eg, a sound output module 155 ) directly or wirelessly connected to the electronic device 101 . The electronic device 102) (eg, a speaker or headphones) may output a sound.

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

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

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

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

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

The power management module 188 may manage power supplied to the electronic device 101 . According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of 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, battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a local area network (LAN) communication module, or a power line communication module). A corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses subscriber information (eg, 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 may be identified or authenticated.

The wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR). NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)). The wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 192 uses various techniques for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna. The wireless communication module 192 may support various requirements defined in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ). According to an embodiment, the wireless communication module 192 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: Downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) can be supported.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas (eg, an array antenna). 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 from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal 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, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 197 .

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, underside) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

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

According to an embodiment, the command 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 or 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or part of the operations performed by the electronic device 101 may be executed by one or more external

electronic devices

102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an Internet of things (IoT) device. The server 108 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 104 or the server 108 may be included in the second network 199 . The electronic device 101 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

The electronic device according to various embodiments disclosed in this document may have various types of devices. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. Electronic devices according to embodiments of the present document are not limited to the aforementioned devices.

The various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but it should be understood to include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates otherwise. As used herein, "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 , B, or C," each of which may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may simply be used to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit. can be used as A module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). may be implemented as software (eg, the program 140) including For example, the processor (eg, the processor 120 ) of the device (eg, the electronic device 101 ) may call at least one of the one or more instructions stored from the storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the called at least one command. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium 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 a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

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

According to various embodiments, each component (eg, a module or a program) of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. have. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. , or one or more other operations may be added.

FIG. 2 is a diagram for explaining a connection between the electronic device 200 and the external electronic device 101 according to an exemplary embodiment.

Referring to FIG. 2 , an electronic device 200 (eg, the electronic device 101 of FIG. 1 ) is another electronic device 200 (referred to as a user electronic device) (eg, the electronic device 102 or the electronic device of FIG. 1 ). 104)) and a short-range communication connection, for example, a Bluetooth connection. The electronic device 200 may be one of the

electronic devices

202a , 202b , 204 , and 206 interoperable with the user electronic device 101 . For example, the electronic device 200 may be a wearable device, a smart phone, or other portable device. The user electronic device 101 may be a device capable of communicating with the electronic device 200 in a short distance. For example, the user electronic device 101 may be a smartphone, and the electronic device 200 may be a wearable device. For example, the wearable device may include a wireless earphone, a smart watch, a wireless headset, or other devices connectable to the electronic device through Bluetooth communication. According to an embodiment, the user electronic device 101 may establish a Bluetooth (or low energy Bluetooth) connection through pairing with the electronic device 200 .

In an embodiment, when the distance between the electronic device 200 and the user electronic device 101 is out of a specified range due to the loss of the electronic device 200 , the electronic device 200 further increases the signal of the user electronic device 101 . You may not be able to receive any more. In this case, the electronic device 200 may determine the disconnection of the connection with the user electronic device 101 and enter the lost state. According to an embodiment, the electronic device 200 may determine that the user electronic device 101 is in a lost state based on a connection failure during a specified time period. In one embodiment, the connection failure may be detected based on Bluetooth communication, another wireless communication technology, or other means (eg physical contact). In an embodiment, when the electronic device 200 enters the lost state according to a designated instruction signal from the user electronic device 101, another device, or a server, the electronic device 200 may perform a tracking operation according to various embodiments. In an embodiment, the electronic device 200 receives a trigger signal from the user electronic device 101, another device, or a server based on short-range communication (eg, ultra-wideband (UWB) communication or BLE communication). By receiving it, you can activate the tracking operation. In an embodiment, the electronic device 200 may activate a tracking operation based on a distance to the user electronic device 101, for example, a physical distance and/or a measurement of a received signal strength. In an embodiment, when the electronic device 200 identifies the user electronic device 101 through BLE communication or confirms that the user electronic device 101 is within a predetermined distance, the electronic device 200 activates UWB communication to communicate with the user electronic device 101 . can measure the exact distance of The measured distance may be used as a reference for activating a tracking operation.

3 is a diagram schematically illustrating a tracking operation of the electronic device 200 according to an exemplary embodiment.

Referring to FIG. 3 , as an example, the electronic device 200 is in a lost state based on disconnection of a connection with another electronic device 101 (referred to as a user electronic device) carried by the user and/or other means. It can detect and start broadcasting a low-power Bluetooth-based advertisement signal 302 . The advertisement signal 302 may be repeatedly transmitted based on a specified advertisement interval according to predetermined setting parameters.

The at least one external

electronic device

312 , 314 , 316 may be a device capable of performing a function through a Bluetooth-based connection, and may receive an advertisement signal broadcast by other nearby Bluetooth devices through a scan operation. have. When the external

electronic devices

312 , 314 , and 316 located in the vicinity of the electronic device 200 receive at least one advertisement signal broadcast from the electronic device 200 , the electronic device 200 based on the reception of the advertisement signal ) may be uploaded to the server 310 via the network 300 information (hereinafter referred to as location information) 304 that can be used to track the location. As an example, the location information may include information for identifying the electronic device 200 and information for identifying the location and/or identity of the external

electronic devices

312 , 314 , and 316 . As an example, the location information may include information related to the location of the external

electronic devices

312 , 314 , 316 (for example, a physical location or device identifier) and/or the external

electronic device

312 , 314 , 316 may transmit the advertisement signal. may include information related to the time points at which , and the server 310 may estimate the location of the electronic device 200 based on the location information. As an example, the server 310 may know the current locations of the external

electronic devices

312 , 314 , and 316 .

In an embodiment, when the server 310 receives location information about the electronic device 200 from the external

electronic devices

312 , 314 , and 316 , the server 310 identifies the electronic device 200 based on the received location information, and The location of the device 200 may be determined. In an embodiment, the server 310 checks the registered user electronic device 101 corresponding to the electronic device 200 based on the user profile of the electronic device 200, and sends the electronic device ( Information 306 about the location of 200 may be transmitted. Then, the user of the user electronic device 101 may visit the received location to retrieve the electronic device 200 .

The Bluetooth standard discloses active scan and passive scan as a method for the external

electronic devices

312 , 314 , and 316 to receive an advertisement signal broadcast from the electronic device 200 . In an embodiment, the Android-based electronic device may use active scan during Bluetooth low energy scan for application of various applications.

4 is a signal flow diagram illustrating an active scan-based tracking operation according to an embodiment. In an embodiment, the tracking operation includes an advertisement operation 410 by the electronic device 200 , a

scan operation

415 , 420 between the external

electronic devices

312 , 314 , 316 and the electronic device 200 , and external electronic devices ( A scan result report 425 by 312 , 314 , and 316 may be included. From the viewpoint of the electronic device 200 , the tracking operation in the lost state may mean an advertisement operation.

Referring to FIG. 4 , an electronic device 200 (referred to as a tracker device) that detects a lost state based on disconnection of connection with another electronic device (eg, the user electronic device 101 ) carried by the user and/or other means ) starts to transmit an advertisement signal 410 including advertisement data. The advertisement signal 410 may be periodically and repeatedly transmitted according to an advertisement interval specified by the setting parameters. In one embodiment, the advertisement signal 410 includes a designated preamble, an access address, a packet data unit (PDU), and a cyclic redundancy check code (CRC), wherein the packet data unit includes an advertisement payload. may include The advertisement payload is information for identifying a sender who transmits the advertisement signal 410 , and may include a media access control (MAC) address of the electronic device 200 .

The advertisement signal 410 may be scanned by at least one external electronic device 312 (referred to as a scanner device) located in the vicinity of the electronic device 200 . In an embodiment, the external electronic device 312 may initiate a scan operation in response to receiving a BLE scan start signal from the server 310 or another device (eg, the user electronic device 101). have. In an embodiment, the external electronic device 312 may autonomously perform a scan operation without receiving a scan start signal. The external electronic device 312 may initiate a scan operation and receive the advertisement signal 410 . When the advertisement signal 410 is received, the external electronic device 312 may transmit a scan request signal 415 . When the electronic device 200 that has received the scan request signal 415 transmits a scan response signal 420 , the external electronic device 312 considers that the electronic device 200 has been discovered, and the electronic device By transmitting a scan result signal 425 including the location information of 200 to the server 310 , the location information of the electronic device 200 may be updated to the server 310 . In an embodiment, the scan result signal 424 may include the MAC address of the electronic device 200 , which is information identifying a sender who has transmitted the advertisement signal 410 . In an embodiment, the scan result signal 424 may include the MAC address of the external electronic device 312 as a sender and/or location information of the external electronic device 312 as information related to the receiver receiving the advertisement signal 410 . can The server 310 may estimate the location of the electronic device 200 based on information included in the scan result signal 424 .

In an embodiment, a very large number of external electronic devices may exist in the vicinity of the electronic device 200 , and each of the plurality of external electronic devices scans the advertisement signal 410 from the electronic device 200 to obtain the server 310 . to transmit the location information of the electronic device 200 . Accordingly, the amount of traffic to the server 310 by a plurality of external electronic devices becomes excessive, which may increase the load on the server 310 or result in waste of network resources.

Since it is impossible for the electronic device 200 to directly control the upload to the server 310 by external electronic devices, in an embodiment, the electronic device 200 controls transmission of the advertisement signal 410 by controlling the transmission of the advertisement signal 410 to the external electronic device. It is possible to control the upload traffic to the server 310 by the. In an embodiment, the electronic device 200 may control the next transmission frequency of the advertisement signal 410 by monitoring the reception of the scan request signal 415 according to the transmission of the advertisement signal 410 .

In an embodiment, the electronic device 200 may store a history of reception of the scan request signal 415 from external electronic devices in an internal memory and utilize the history to control the next transmission frequency of the advertisement signal 410 . have. In an embodiment, the electronic device 200 identifies an external electronic device (eg, the external electronic device 312 ) that has been frequently discovered before based on the history, and determines that the electronic device 200 is located in the safety zone. can recognize According to an embodiment, the electronic device 200 recognizing that it is located in the safe zone may not change the setting parameter that consumes more than a certain amount of current even if the expected value of the server update is lowered.

In an embodiment, the electronic device 200 provides a device address (eg, MAC) of an external electronic device (eg, external electronic device 312 ) belonging to the user account of the user electronic device 101 from the user electronic device 101 . address) or information for identifying the external electronic device 312 may be received. When the electronic device 200 receives the scan request signal 415 corresponding to the advertisement signal 410 after recognizing the lost state, the scan request signal 415 is transmitted to the external electronic device 312 belonging to the user account. If it is detected that the transmission is performed by the user, the electronic device 200 may recognize that it is located in the safe zone and may decide not to change the setting parameters used for transmission of the advertisement signal 410 . According to an embodiment, the electronic device 200 recognizing that it is located in the safe zone may determine not to change the setting parameter having a current consumption greater than or equal to a certain level even if the expected value of the server update is lowered.

In an embodiment, the electronic device 200 may receive information from the user electronic device 101 notifying that the user enters a preset place (home, office). When the electronic device 200 recognizes the lost state at the preset location, the electronic device 200 may decide not to change the setting parameters used for transmission of the advertisement signal 410 . According to an embodiment, the electronic device 200 recognizing that it is located in the preset place may determine not to change the setting parameter that consumes more than a certain amount of current even if the expected value of the server update is lowered.

5 is a block diagram illustrating a configuration of an external electronic device 312 that performs a scan operation according to an exemplary embodiment.

Referring to FIG. 5 , the external electronic device 312 includes at least a communication module 510 , a processor 520 , and a memory 530 , and optionally further includes a display module 540 and/or an input module 550 . may include The communication module 510 may establish wired and/or wireless communication channels between the electronic device 200 and the server 310 and support data communication through the established communication channel. The communication module 510 supports at least short-range communication, for example, Bluetooth communication, and may additionally support Internet communication based on cellular communication, WiFi communication, UWB, or wired communication.

The processor 520 may scan reception of at least one advertisement signal broadcast from the electronic device 200 through the communication module 510 . In an embodiment, the processor 520 may receive a scan start signal from the server 310 or another electronic device through the communication module 510 to scan the advertisement signal. In an embodiment, the processor 520 may receive a user input for starting a scan from a user through the input module 550 and initiate a scan operation.

The processor 520 that has received the advertisement signal through the communication module 510 through the scan operation may transmit a scan request signal to the electronic device 200 that is the sender of the advertisement signal as a receiver through the communication module 520 . In an embodiment, the processor 520 may transmit one scan request signal whenever one advertisement signal is received. In an embodiment, the processor 520 may transmit one scan request signal upon receiving one or more advertisement signals within a specified time period. The processor 520 may receive the advertisement signal and transmit a scan request signal after a specified inter-frame space (T_IFS).

The processor 520 may receive a scan response signal corresponding to the scan request signal from the electronic device 200 through the communication module 520 after a specified frame interval T_IFS after transmitting the scan request signal. When the scan response signal is received, the processor 520 considers that the electronic device 200 has been discovered, and transmits a scan result signal including location information related to the electronic device 200 to the server 410 through the communication module 510 . can be sent to In an embodiment, the scan result signal is used to estimate the location of the electronic device 200 in the server.

In an embodiment, the memory 530 may store various data used by the communication module 510 and/or the processor 520 . Data may include, for example, input data or output data for software code (eg, a program) and instructions related thereto. The memory 530 may include a volatile memory or a non-volatile memory.

The display module 540 according to an embodiment may display information related to an operation of scanning an advertisement signal from the electronic device 200 .

The input module 550 according to an embodiment may receive a user input related to an operation of scanning an advertisement signal from the electronic device 200 . As an example, the user input may include a command instructing to start a scan operation.

6 is a block diagram illustrating a configuration of an electronic device 200 that performs an advertisement operation according to an exemplary embodiment.

Referring to FIG. 6 , the electronic device 200 includes at least a short-range communication module 610 , a processor 600 , a memory 650 , and a battery 670 , an input module 620 , a sensor module 630 , It may optionally further include an audio processing module (or audio processing circuitry) 640 , and/or a power management module (or power management circuitry) 660 . The short-range communication module 610 establishes wired and/or wireless communication channels with the user electronic device 101 and supports data communication through the established communication channel, while short-range wireless communication with at least one external electronic device 312 . can support According to various embodiments, the short-range communication module 610 may support various types of short-range communication using an antenna. The short-range communication may include, for example, wireless fidelity (WiFi), Bluetooth, near field communication (NFC), UWB, or a global navigation satellite system (GNSS). According to various embodiments, Bluetooth communication may include Bluetooth legacy (or classic) communication or BLE (bluetooth low energy) communication.

According to an embodiment, the short-range communication module 610 may include various radio frequency (RF) components between the antenna and the processor 600 . For example, in reception of a radio signal, the communication module 610 may receive a radio signal from an antenna, convert the received radio signal into a baseband signal, and transmit the converted baseband signal to the processor 600 . . The processor 600 may process the received baseband signal and control the human/mechanical interface of the electronic device 200 in response to the received baseband signal. In transmission of the wireless signal, the processor 600 may generate a baseband signal and output it to the short-range communication module 610 . The short-range communication module 610 may receive a baseband signal from the processor 600 , convert the received baseband signal into a wireless signal, and transmit it to the air through the antenna 611 . According to an embodiment, the short-range communication module 610 may support reception of audio data (or audio content) from the electronic device 101 .

According to an embodiment, the input module 620 may be configured to generate various input signals required for operation of the electronic device 200 . The input module 620 may include a touch pad, a touch panel, or a button. The touch pad may recognize a touch input using, for example, at least one of a capacitive type, a pressure sensitive type, an infrared type, and an ultrasonic type. If a capacitive touch pad is provided, physical contact or proximity recognition may be possible. The touch pad may further include a tactile layer. A touch pad including a tactile layer may provide a tactile response to a user. The button may include, for example, a physical button or an optical key. According to various embodiments, the input module 620 may generate a user input regarding on or off of the electronic device 200 . According to various embodiments, the input module 620 may generate a user input related to a communication (eg, Bluetooth communication) connection with the user electronic device 101 or the external electronic device 312 .

According to an embodiment, the input module 620 may generate a user input related to audio data (or audio content). For example, the user input may relate to functions such as starting playback of audio data, pausing playback, stopping playback, adjusting playback speed, adjusting playback volume, or muting audio data. For example, the input module 620 may include a touch pad, and the operation of the electronic device 200 may be controlled by various gestures such as tapping on the touch pad or swiping up and down.

According to an embodiment, when a gesture related to a single tap is detected through the touchpad, the processor 600 may reproduce audio data or pause the reproduction. According to an embodiment, when a gesture related to two taps is detected through the touch pad, the processor 600 may switch the playback to the next audio data. According to an embodiment, when a gesture related to three taps is detected through the touch pad, the processor 600 may switch the playback to previous audio data. According to an embodiment, when a gesture of swiping up or down through the touch pad is detected, the processor 600 may adjust a volume related to the reproduction of audio data. According to an embodiment, when a call is made to the user electronic device 101 while the user electronic device 101 and the electronic device 200 are connected, a gesture related to two taps is detected through the touchpad. , the processor 600 may cause the user electronic device 101 to connect a phone call.

According to an embodiment, the sensor module 630 may include at least one sensor that measures a physical quantity or detects an operating state of the electronic device 200 . The sensor module 630 may convert measured or sensed information into an electrical signal. The sensor module 630 may include, for example, at least one of an acceleration sensor, a gyro sensor, a geomagnetic sensor, a magnetic sensor, a proximity sensor, a gesture sensor, a grip sensor, and a biometric sensor. According to an embodiment, the sensor module 630 detects information or a signal regarding whether the electronic device 200 is coupled to the user's body (eg, an ear) or whether it is coupled to an external device (eg, a charging device). information or signals about

According to an embodiment, the electronic device 200 may further include a member for sensing corresponding to a sensor (not shown) of an external device (eg, a contact terminal of the user electronic device 101 ). For example, the electronic device 200 may include a magnet detected by a Hall IC installed in the user electronic device 101 , and when the electronic device 200 is coupled to the user electronic device 101 , The sensor module 630 recognizes that the Hall IC of the user electronic device 101 is in contact with the magnet installed in the electronic device 200 , and outputs a signal related to the combination of the user electronic device 101 and the electronic device 200 . can According to an embodiment, the processor 600 may determine to enter the lost state according to whether the user electronic device 101 is coupled.

According to an embodiment, the audio processing module 640 may support audio data collection. The audio processing module 640 may reproduce the collected audio data. According to an embodiment, the audio processing module 640 may include an audio decoder (not shown) and a D/A converter (not shown). The audio decoder may convert audio data stored in the memory 650 into a digital audio signal. The D/A converter may convert the digital audio signal converted by the audio decoder into an analog audio signal. According to various embodiments, the audio decoder may convert audio data received from the user electronic device 101 through the short-range communication module 610 and stored in the memory 650 into a digital audio signal. The speaker 642 may output an analog audio signal converted by the D/A converter. According to an embodiment, the audio processing module 640 may include an A/D converter (not shown). The A/D converter may convert an analog voice signal input through the microphone 644 into a digital voice signal.

According to an embodiment, the audio processing module 640 may reproduce various audio data set in an operation operation of the electronic device 200 . For example, when it is sensed that the electronic device 200 is coupled to the user's body (eg, an ear) or it is sensed that the electronic device 200 is separated from the user's body, the audio processing module 640 responds to a corresponding effect or guide sound. It can be designed to reproduce audio data about According to an embodiment, when it is sensed that the electronic device 200 is coupled to an external device (eg, a contact terminal of the user electronic device 101) or it is sensed that the electronic device 200 is separated from the external device, the audio processing module 640 ) may be designed to reproduce audio data about the corresponding effect or guide sound. Output of sound effect or guide sound may be omitted according to user setting or designer's intention. According to various embodiments, the audio processing module 640 may be designed to be included in the processor 600 .

According to an embodiment, the memory 650 may store data or application programs and algorithms corresponding to an operating system and various user functions required for operation of the electronic device 200 . Memory 650 may include, for example, high-speed random access memory and/or non-volatile memory, such as one or more magnetic disk storage devices, one or more optical storage devices, and/or flash memory (eg, NAND, NOR). have. According to an embodiment, the memory 650 may include a non-volatile memory that stores the first audio data (non-volatile audio data) received from the user electronic device 101 . According to an embodiment, the memory 650 may include a volatile memory that stores the second audio data (volatile audio data) received from the user electronic device 101 .

According to an embodiment, the power management module 660 includes, for example, a power management integrated circuit (PMIC), and can efficiently manage and optimize the power state and use of the battery 670 in the electronic device 200 . have. According to an embodiment, the processor 600 may transmit a signal corresponding to the load to be processed to the power management module 660 . The power management module 660 may adjust power supplied to the processor 600 . According to an embodiment, the power management module 660 may include a battery charging circuit. According to an embodiment, when the electronic device 200 is coupled to an external device (eg, a charging device), the power management module 660 may receive power from the charging device to charge the battery 670 . According to an embodiment, the power management module 660 may include a wireless charging circuit. The wireless charging circuit may wirelessly receive power from the charging device through an antenna and charge the battery 670 using the received power. According to an embodiment, the power management module 660 measures the amount of remaining power of the battery 670 and processes a signal informing the amount of remaining power to be used to control an advertisement operation in the lost state of the electronic device 200 . (600) can be provided.

According to an embodiment, the electronic device 200 may include a display module (not shown). The display module may be configured to provide various screen interfaces required for operation of the electronic device 200 . The display module may provide a user interface related to reproduction of audio data. According to various embodiments, the display module may provide a user interface related to a function of receiving audio data from the electronic device 200 or a function of transmitting audio data to the electronic device 200 . According to various embodiments, the display module may include a light emitting means such as a light emitting diode (LED). For example, the light emitting means may be controlled to emit a color corresponding to charging or completion of charging. For example, when the electronic device 200 is connected to the user electronic device 101 , the light emitting means may be controlled to emit a specified color. For example, the light emitting means may be controlled to emit a specified color according to the reproduction state of the audio data (eg, during reproduction or while reproduction is paused). For example, according to a user input generated through the input device, the light emitting means may be controlled to emit a specified color. For example, when the electronic device 200 is disconnected from the user electronic device 101 , the light emitting means may be controlled to emit a specified color. For example, the light emitting means may be controlled to emit red that slowly flickers to indicate that the electronic device 200 is in an advertisement operation.

According to an embodiment, the processor 600 may be configured to control at least one of various signal flow control, information collection, or output related to audio data. The processor 600 may support various operations based on at least a part of a user input from the input device 620 . According to an embodiment, the processor 600 may turn the electronic device 200 on or off according to a user input. According to an embodiment, the processor 600 may switch the electronic device 200 to a lost state according to a user input.

According to an embodiment, the processor 600 may cause the electronic device 200 to connect the user electronic device 101 with Bluetooth-based communication through the short-range communication module 610 according to a user input. According to an embodiment, the processor 600 may receive audio data from the user electronic device 101 or transmit audio data to the user electronic device 101 according to a user input. According to an embodiment, the electronic device 200 may output an audio signal received from the user electronic device 101 to the speaker 642 while being connected to the user electronic device 101 and other audio electronic devices, and Information for enabling another external electronic device to acquire an audio signal from the device 101 may be transmitted to another external electronic device. According to an embodiment, the external electronic device 200 may output an audio signal received from the user electronic device 101 to the speaker 642 while being connected to the user electronic device 101 and another external electronic device, and the user An audio signal received from the electronic device 101 may be transmitted to another external electronic device.

According to an embodiment, the processor 600 may reproduce or control the reproduction of audio data according to a user input (start of reproduction of audio data, pause of reproduction, stop of reproduction, control of reproduction speed, control of reproduction volume, or mute). According to an embodiment, the processor 600 may receive an audio signal from the user electronic device 101 and output the received audio signal through the speaker 642 . According to an embodiment, the processor 600 may perform various operations based on at least a part of information obtained from the sensor module 630 . According to an embodiment, the processor 600 may determine whether the electronic device 200 is worn on the user's body (eg, an ear) from information obtained from the sensor module 630 . When it is confirmed that the electronic device 200 is worn on the user's body, the processor 600 reproduces audio data stored in the memory 650 according to a user input for audio data reproduction and outputs the audio data to the speaker 642 . can

According to an embodiment, in a mode in which the electronic device 200 receives audio data from an external device, reproduces it, and outputs the audio data to the speaker 642, it is determined that the electronic device 200 is not worn on the user's body. In this case, the processor 600 may stop the mode or transmit a signal related thereto to the user electronic device 101 . The user electronic device 101 may receive a signal regarding a state in which the electronic device 200 is not worn on the user's body, and may stop transmitting audio data to the electronic device 200 . According to an embodiment, in a mode in which the electronic device 200 receives an audio signal from the user electronic device 101 and outputs it to the speaker 642, the external electronic device 200 is not worn on the user's body When it is confirmed, the processor 600 may stop the mode or transmit a signal related thereto to an external device. The user electronic device 101 may receive a signal regarding a state in which the electronic device 200 is not worn on the user's body, and may stop the reproduction of audio data and transmission of the audio signal. According to an embodiment, when it is confirmed that the electronic device 200 is worn on the user's body, the processor 600 may activate a biometric sensor (eg, a heart rate sensor). When it is confirmed that the electronic device 200 is not worn on the user's body, the processor 600 may deactivate the biometric sensor.

According to an embodiment, the electronic device 200 may provide a voice recognition function for generating a voice command from an analog voice signal received using the microphone 644 . In one embodiment, the voice command may include an input to support the reception, transmission, or playback of audio data.

According to an embodiment, the processor 600 may recognize that the communication connection between the electronic device 200 and the user electronic device 101 is lost when the communication connection is not restored or the communication connection fails for a specified time after the termination. have. According to an embodiment, the processor 600 terminates the communication connection with the user electronic device 101 and the electronic device 200 is not worn on the user's body in a state in which the communication connection is not restored or the communication connection fails for a specified period of time. If it is confirmed that it is not in a non-existent state, it can be recognized as lost. In an embodiment, the processor 600 may enter a locked state when it is recognized as lost, and may not reset or perform a pairing operation with the user electronic device 101 or any external electronic device. In an embodiment, the processor 600 may operate to reject Bluetooth pairing with a new device in a state recognized as lost (referred to as a lost state) and to pair only with a Bluetooth paired device. For example, the processor 600 may be set to ignore an input of a reset button in a lost state.

According to an embodiment, the electronic device 200 may further include various modules according to its provision form. It is not possible to enumerate all of them because there are many variations according to the convergence trend of digital devices, but components equivalent to the above-mentioned components may be additionally included in the electronic device 200 . Also, of course, in the electronic device 200 according to an embodiment, at least some components may be excluded from the above components or replaced with other components according to the form of provision thereof. This will be easily understood by those of ordinary skill in the art. According to an embodiment, the electronic device 200 includes a pair of audio electronic devices, for example, a first audio electronic device (eg, a first earphone, a main earphone, or a right earphone) or a second audio electronic device (eg, a right earphone). : Second earphone, sub earphone, or left earphone).

In an embodiment, when it is decided to enter the lost state, the processor 600 may recognize that a broadcast event for broadcasting an advertisement signal according to a Bluetooth-based advertisement operation has been initiated.

In an embodiment, the electronic device 200 includes a short-range communication module 610 and at least one processor 600 functionally connected to the short-range communication module, wherein the at least one processor includes the electronic device and a first When the disconnection between the external electronic device is detected and the disconnection between the electronic device and the first external electronic device is detected, an advertisement signal is transmitted through the short-distance communication module, and through the short-distance communication module, at least one second 2 Receive at least one scan request signal corresponding to the advertisement signal from an external electronic device, change at least one setting parameter related to transmission of the advertisement signal based on the reception frequency of the scan request signal, and Based on the setting parameter, it may be configured to control the transmission of the advertisement signal through the short-range communication module.

In an embodiment, the at least one setting parameter includes an advertisement interval indicating a period for transmitting the advertisement signal, an arrival coverage of the advertisement signal, a time interval for stopping transmission of the advertisement signal, and a MAC ( media access control) address update time.

In an embodiment, the at least one processor may increase the advertisement interval, decrease transmission power used for transmitting the advertisement signal, or transmit the advertisement signal based on the reception frequency of the scan request signal. For this purpose, the long-range technology may be used, the transmission of the advertisement signal may be stopped for a specified time period, and/or the MAC address of the electronic device may be changed.

In an embodiment, the reception frequency of the scan request signal may include the number of reception times of the scan request signal corresponding to transmission of the advertisement signal a specified number of times.

In an embodiment, the reception frequency of the scan request signal may include the number of reception times of the scan request signal transmitted from different external electronic devices during a specified time period.

In an embodiment, when the reception frequency of the scan request signal is greater than a specified threshold, the at least one processor may increase an advertisement interval for transmission of the advertisement signal by a specified value.

In an embodiment, the at least one processor estimates the number of server updates by which the at least one second external electronic device updates the location information related to the electronic device to the server based on the reception frequency of the scan request signal, Based on a server update probability determined based on a server update policy indicating a manner in which the at least one second external electronic device updates the location information related to the electronic device to the server, and the estimated number of server updates, the at least An expected server update value by one second external electronic device is calculated, and when the calculated server update expectation value exceeds a specified threshold value, the at least one setting parameter may be changed.

In an embodiment, the at least one processor may receive information about the server update policy from the first external electronic device while the electronic device is connected to the first external electronic device.

In an embodiment, the at least one processor transmits information indicating the number of times the location information related to the electronic device is actually updated to the server while the electronic device is connected with the first external electronic device to the first external electronic device and may calculate the server update probability based on the received information.

In an embodiment, the at least one processor is configured to receive, while the electronic device is connected to the first external electronic device, information on a server traffic policy indicating a reception frequency of location information related to the electronic device requested by a server. Receive from the first external electronic device, and set the specified threshold based on the server traffic policy.

Referring to FIG. 7 , the electronic device 200 may recognize the start 700 of a broadcast event and transmit an advertisement signal 702a. As an example, the types of advertisement signals that can be used in advertisement operations provided by the Bluetooth standard are as follows.

ADV_IND

ADV_DIRECT_IND

ADV_NONCONN_IND

ADV_SCAN_IND

ADV_EXT_IND

AUX_ADV_IND

AUX_SYNC_IND

AUX_CHAIN_IND

In one embodiment, the electronic device 200 in the lost state is a packet used for scannable undirected advertising events, so that it can be scanned by anonymous external electronic devices located nearby; For example, an ADV_SCAN_IND PDU or an ADV_IND PDU (not shown) may be included in the advertisement signal 702a. As an example, the electronic device 200 may transmit an ADV_SCAN_IND PDU or an advertisement signal 702a including an ADV_IND PDU through a physical channel of Adv_idx=37.

The electronic device 200 may repeatedly transmit the advertisement signals 702b and 702c at every designated advertisement interval 704 (eg, may be less than or equal to 10 ms). As an example, the second and third advertisement signals 702b and 702c may be transmitted through different physical channels of Adv_idx=38 and 39, respectively.

The external electronic device (for example, 312) that has received at least one of the advertisement signals 702a, 702b, and 702c determines whether the most recent advertisement signal 702c has been received, and a specified frame interval T_IFS (150 μs as an example) Thereafter, the scan request signal 704 may be transmitted. The scan request signal 704 is received by the electronic device 200 . In one embodiment, the scan request signal 704 may include a SCAN_REQ PDU used to respond to a scannable advertisement, as specified by the Bluetooth standard. The electronic device 200 may transmit the scan response signal 706 after T_IFS from the reception of the scan request signal 704 . In one embodiment, the scan response signal 706 may include a SCAN_RSP PDU used to respond to a scannable advertisement, as specified by the Bluetooth standard. The scan request signal 704 and the scan response signal 706 may be transmitted through the same physical channel (eg, Adv_idx=39) as the last advertisement signal 702 to constitute one set.

In an embodiment, the electronic device 200 may transmit the scan response signal 706 and determine the end 710 of the advertisement event. According to an embodiment, the electronic device 200 in the lost state may repeat

advertisement operations

702a, 702b, 702c, 704, and 706 until the lost state is released. In an embodiment, the

advertisement operations

702a, 702b, 702c, 704, and 706 in the lost state may be repeatedly performed a specified number of times. According to an embodiment, the

advertisement operations

702a, 702b, 702c, 704, and 706 in the lost state may be repeatedly performed a specified number of times or time points in consideration of the channel and/or battery state of the electronic device 200 .

8, the advertisement signal 702 (any one of 702a, 702b, 702c) includes a preamble 810, an access address 820, a PDU 830, and a CRC 840. can do. For example, the preamble 810 may include information (eg, 10101010) for bit synchronization or frame synchronization. The access address 820 means an address for connection in the link layer. For example, the access address 820 for all other advertisement packets may include 0x8E89BED6. For example, the access address 820 generated by the electronic device in the initialized state may include a 32-bit random number value. The PDU 830 may carry a PDU including advertisement/data. The CRC 840 may include a code for error detection of the PDU 830 .

The PDU 830 according to an embodiment may include a header 832 and a payload 834 . The header 832 according to an embodiment may include a PDU type, RFU, TxAdd, RxAdd, Length, and RFU. In an embodiment, the PDU type of the advertisement PDU may indicate one of ADV_IND, ADV_DIRECT_IND, ADV_NONCONN_IND, SCAN_REQ, AUX_SCAN_REQ, SCAN_RSP, CONNECT_IND, AUX_CONNECT_REQ, and ADV_SCAN_IND. RFUs are bits reserved for future use. TxAdd may indicate whether the AdvA field 852 in the payload 834 is public (TxAdd=0) or random (TxAdd=1). RxAdd may indicate whether the TargetA field (not shown) included in the payload 834 is public (RxAdd=0) or random (RxAdd=1).

The payload 834 may include PDU data. For example, the payload 834 may include an ADV_SCAN_IND PDU 850 that can be used in an advertisement event for any kind of device that is in a scannable state without a connection, and the ADV_SCAN_IND PDU 850 is an advertisement signal 702 . It may include an AdvA field 852 containing the MAC address of the electronic device 200, which is an advertiser that transmits , and an AdvData field 854 containing advertisement data. In one embodiment, the AdvData field 854 may be omitted or filled with zeros. According to an embodiment, the AdvData field 854 may include data that the electronic device 200 in a lost state wants to provide to an external electronic device that is a scanner that receives the advertisement signal 702 . In an embodiment, the data may include at least one of the following information.

- Aging counter (raw data): Current time

- Priavacy ID (encrypted): a security ID given to the electronic device 200

- Signature (encrypted): Signature information used to verify service data or key value.

- Region ID: a region in which a tag of the electronic device 200 is registered

- Other information: UWB support and/or battery level

9 is a flowchart illustrating a procedure 900 for controlling transmission of an advertisement signal in the electronic device 200 according to various embodiments of the present disclosure. The procedure 900 of the illustrated flowchart may be performed by the processor 600 of the electronic device 200 .

Referring to FIG. 9 , in operation 905 , the processor 600 may detect that the connection with the user electronic device 101 is disconnected through the short-range communication module 610 . In an embodiment, the processor 600 is lost when the communication connection is not restored for a specified time after the communication connection between the electronic device 200 and the user electronic device 101 is terminated or the communication connection with the user electronic device 101 fails. You can decide to enter a state. Although not shown, in an embodiment, the processor 600 enters the lost state according to a designated instruction signal from the user electronic device 101 , another device, a user, or a server, and proceeds to operation 910 .

In operation 910 , the processor 600 transmits an advertisement signal that can be received by at least one anonymous external electronic device located in the vicinity through the short-range communication module 610 . In an embodiment, the advertisement signal may be repeatedly transmitted according to an advertisement interval indicating a specified transmission period. In operation 915 , the processor 600 may receive a scan request signal corresponding to the advertisement signal from at least one external electronic device. The scan request signal may be identified as corresponding to the advertisement signal by being received through the same physical channel as the advertisement signal.

In operation 920, the processor 600 may change at least one setting parameter to be applied to the transmission of the advertisement signal based on the reception of the scan request signal corresponding to the transmission of the advertisement signal. In an embodiment, the at least one setting parameter includes an advertisement interval applicable to transmission of the advertisement signal 410 , an advertisement coverage indicating a range that the advertisement signal 410 can reach, and an advertisement signal. It may include at least one of a time period for stopping the transmission of 410 and a time point for updating the MAC address of the electronic device 200 . In an embodiment, the advertisement coverage may be changed according to at least one of transmission power applied to the advertisement signal 410 or whether long-range Bluetooth is applied. In an embodiment, the at least one setting parameter may be controlled to reduce the amount of server traffic caused by the transmission of the advertisement signal.

In an embodiment, the processor 600 may increase the advertisement interval by a specified value or by a specified unit value. Accordingly, the number of advertisement signals received by external electronic devices is reduced or the number of external electronic devices receiving advertisement signals is reduced, so that the number of reports of location information transmitted by external electronic devices to the server can be reduced. In an embodiment, the processor 600 may reduce the advertisement coverage indicating the distance to which the advertisement signal is reached by reducing the transmission power used for transmission of the advertisement signal or using a long-range technology for transmission of the advertisement signal. have. Due to the reduction in advertisement coverage, the number of external electronic devices that receive advertisement signals may be reduced. In an embodiment, the processor 600 may stop transmission of the advertisement signal for a specified time period.

In an embodiment, the processor 600 may change the MAC address of the electronic device 200 immediately or at a time point when transmission of the next advertisement signal starts, and restart the MAC update cycle. Since the external electronic device identifies the advertiser transmitting the advertisement signal by the transmission MAC address (for example, the AdvA field 852) included in the advertisement signal, the advertisement by the external electronic device(s) by changing the MAC address It is possible to initialize the signal reception history and increase the server update probability by the external electronic device(s).

In an embodiment, the processor 600 may change the at least one setting parameter based on the reception frequency of the scan request signal. In an embodiment, the reception frequency may mean the number of times the scan request signal is received corresponding to N transmissions (eg, N=1) of the advertisement signal. In an embodiment, the reception frequency may mean the number of times the scan request signal transmitted from external electronic devices is received during a specified time period. In an embodiment, the reception frequency may mean the number of times that scan request signals from different external electronic devices are received during a specified time period. In this case, a plurality of scan request signals received from one external electronic device within the designated time period may be recognized as one reception. For example, the designated time interval may be set to a specified value, correspond to an advertisement interval indicating a transmission period of the advertisement signal, or may be determined based on a value determined based on the advertisement interval, for example, an integer multiple of the advertisement interval. For example, the designated time period may be set by the user electronic device 101 , the server 310 , or a user.

For example, when the reception frequency exceeds a specified threshold value, the processor 600 may increase the advertisement interval among the at least one setting parameter to a specified value within a predetermined maximum value or increase it by a specified unit value. have. For example, when the reception frequency exceeds a specified threshold, the processor 600 may reduce advertisement coverage among the at least one setting parameter. For example, the processor 600 may reduce the advertisement coverage by reducing the transmission power applied to the transmission of the advertisement signal to a specified value or by reducing the transmission power by a specified unit value. For example, the processor 600 may reduce advertisement coverage by determining not to use the long-range technology for transmission of the advertisement signal. For example, when the reception frequency exceeds a specified threshold, the processor 600 may determine not to transmit the advertisement signal for a predetermined time period. For example, the processor 600 may update a MAC address to change its MAC address, thereby increasing the probability that external electronic devices update location information of the electronic device 200 .

In operation 925, the processor 600 may periodically or repeatedly transmit an advertisement signal using the changed at least one setting parameter. The number of transmissions (ie, transmission frequency) of advertisement signals is reduced by the changed setting parameter, and accordingly, the amount of server traffic by external electronic devices that scan advertisement signals may be reduced.

10 is a flowchart illustrating an operation 920 of changing setting parameters for an advertisement signal in the electronic device 200 according to various embodiments of the present disclosure. The illustrated operation 920 may be executed by the processor 600 included in the electronic device 200 as an example.

Referring to FIG. 10 , in operation 1005 , the processor 600 may obtain a reception frequency of a scan request signal for each at least one external electronic device corresponding to at least one transmission of an advertisement signal. In an embodiment, the reception frequency may mean the number of times the scan request signal is received corresponding to N times of transmission of the advertisement signal. In an embodiment, the reception frequency may mean the number of times that scan request signals from different external electronic devices are received during a specified time period.

In operation 1010 , the processor 600 may estimate server traffic including at least one scan result signal transmitted to the server 310 by the at least one external electronic device based on the reception frequency. In an embodiment, the server traffic may mean the number of at least one scan result signal transmitted to the server 310 during a specified time period. In an embodiment, the server traffic may be estimated to be equal to the number of times scan request signals from different external electronic devices are received during a specified time period.

In operation 1015 , the processor 600 may change at least one setting parameter to be applied to transmission of an advertisement signal based on the estimated server traffic. In an embodiment, the processor 600 uses a server update policy indicating a method in which at least one external electronic device transmits a scan result signal including location information of the electronic device 200 to the server 310 after a scan operation. The server traffic may be analyzed.

In an embodiment, an external electronic device may have a server update policy that transmits a scan result signal to the server 310 whenever it receives an advertisement signal from the electronic device 200 . In an embodiment, an external electronic device may have a server update policy that transmits one scan result signal to the server 310 for one or more advertisement signals having the same MAC address. In an embodiment, an external electronic device may have a server update policy that does not transmit a scan result signal to the server 310 despite reception of an advertisement signal. In an embodiment, the information on the server update policy of at least one external electronic device may be provided from the user electronic device 101 to the electronic device 200 while the electronic device 200 is connected to the user electronic device 101 . can Based on the received server update policy, the processor 600 may estimate the number of scan result signals transmitted to the server 310 by at least one external electronic device that has received the advertisement signal.

In one embodiment, the processor 600 may compare the estimated server traffic with a specified threshold. In an embodiment, the specified threshold value may be provided from the user electronic device 101 to the electronic device 200 while the electronic device 200 is connected to the user electronic device 101 . In an embodiment, the specified threshold value may be set to any one of a value used when the electronic device 200 is in a stationary state and a value used when the electronic device 200 is in a moving state. In an embodiment, the moving state may mean a case in which the moving speed measured by the acceleration sensor of the electronic device 200 is greater than a specified value.

In an embodiment, when the estimated server traffic is greater than a specified threshold, the processor 600 selects at least one setting parameter applied to an advertisement operation so that the number of scan result signals reaching the server 310 can be reduced. can be changed In an embodiment, the processor 600 may increase the advertisement interval, reduce the advertisement coverage, or apply a time period in which the advertisement signal is not transmitted.

11 is a flowchart illustrating an operation 920 of changing setting parameters for an advertisement signal in the electronic device 200 according to various embodiments of the present disclosure. The illustrated operation 920 may be executed by the processor 600 included in the electronic device 200 as an example.

Referring to FIG. 11 , in operation 1105 , the processor 600 estimates the number of server updates based on the reception frequency of the scan request signal for each at least one external electronic device. The number of server updates may mean the number of scan request signals expected to be transmitted to the server 310 by the at least one external electronic device. As an example, the processor 600 may estimate the number of server updates to be the same as the number of receptions of the scan request signal indicated by the reception frequency.

In operation 1110 , the processor 600 may calculate an expected server update value based on a server update probability determined based on the server update policy of each external electronic device and the predicted number of server updates. The expected server update value may mean a value estimated as the number of scan result signals actually transmitted to the server by at least one external electronic device. The server update probability may mean a probability that at least one external electronic device that has transmitted a scan request signal transmits a scan result signal to the server 310 .

In an embodiment, the server update probability may mean a ratio of the number of scan request signals received to the electronic device 200 to the number of scan result signals transmitted to the server 310 by at least one external electronic device. have. According to an embodiment, the server update probability is information on the server update policy of at least one external electronic device from the user electronic device 101 while the electronic device 200 is connected to the user electronic device 101. 200) can be provided. In an embodiment, the server update probability may be derived based on a server update policy of at least one external electronic device. In an embodiment, the information indicating the server update policy is transmitted from the user electronic device 101 while the electronic device 200 is connected to the user electronic device 101 or when the user electronic device 101 is reconnected. (200) may be provided. An additional description of an operation of changing configuration parameters for transmission of an advertisement signal according to the server update policy will be described later with reference to FIG. 12 .

In operation 1115 , the processor 600 determines whether the expected server update value is 0 , and if it is 0, proceeds to operation 1120 . In operation 1120 , the processor 600 may increase the transmission power for transmission of the advertisement signal by a specified value and/or change the transmission MAC address of the electronic device 200 . This is because it is determined that the location information of the electronic device 200 is not being reported to the server 310 to increase the probability that nearby external electronic devices will receive a new advertisement signal. On the other hand, if the expected server update value is not 0, operation 1125 is performed. In an embodiment,

operations

1115 and 1120 may be omitted, and the processor 600 may calculate the expected server update value in operation 1110 and then proceed to operation 1125 .

In operation 1125 , the processor 600 may determine whether the expected server update value is greater than a specified threshold value TH. If it is greater than the specified threshold, proceed to operation 1130 to control server traffic, otherwise return to operation 1105. In an embodiment, the threshold may be once every 5 minutes. In an embodiment, the threshold value may be once per minute in a state in which the electronic device 200 is not moving, and may be twice per minute in a state in which the electronic device 200 is in motion. In an embodiment, the threshold value may be determined based on a server traffic policy that may be provided from the user electronic device 101 to the electronic device 200 while the electronic device 200 is connected to the user electronic device 101 . can The server traffic policy may mean a reception frequency of location information required by the server.

In operation 1130, the processor 600 may increase the advertisement interval for transmission of the advertisement signal. As a result, the frequency at which the adjacent external electronic devices receive the advertisement signal may be reduced, and as a result, server traffic by the external electronic devices may be reduced. In operation 1135, the processor 600 may reduce the transmission power applied to the transmission of the advertisement signal. Accordingly, the number of peripheral external electronic devices capable of receiving advertisements may be reduced, and as a result, server traffic by the external electronic devices may be reduced.

In an embodiment, the processor 600 may omit at least one of

operations

1130 and 1135 . In an embodiment, the processor 600 performs operation 1130 when the server update expectation value is greater than the first threshold value using different first and second threshold values to be compared with the server update expectation value. and, when the expected server update value is greater than the second threshold value, operation 1135 may be performed.

According to an embodiment, a method of transmitting an advertisement signal by an electronic device includes detecting a disconnection between the electronic device and a first external electronic device, and detecting the disconnection between the electronic device and the first external electronic device, transmitting an advertisement signal through the short-range communication module; receiving at least one scan request signal corresponding to the advertisement signal from at least one second external electronic device through the short-range communication module; Changing at least one setting parameter related to transmission of the advertisement signal based on the reception frequency of the request signal, and controlling transmission of the advertisement signal through the short-distance communication module based on the changed setting parameter may include

In an embodiment, the operation of changing the at least one setting parameter includes increasing the advertisement interval, decreasing transmission power used for transmission of the advertisement signal, and a long range for transmission of the advertisement signal. It may include determining to use the technology, stopping transmission of the advertisement signal for a specified time period, and/or changing the MAC address of the electronic device.

In an embodiment, the operation of changing the at least one setting parameter may include increasing an advertisement interval for transmission of the advertisement signal by a specified value when the reception frequency of the scan request signal is greater than a specified threshold value. have.

In an embodiment, the changing of the at least one setting parameter may include updating a server by which the at least one second external electronic device updates location information related to the electronic device to a server based on a reception frequency of the scan request signal. A server update probability determined based on a server update policy indicating an operation of estimating the number of times, and a method in which the at least one second external electronic device updates the location information related to the electronic device to the server, and the estimated server update calculating an expected server update value by the at least one second external electronic device based on the number of times, and changing the at least one setting parameter when the calculated server update expected value exceeds a specified threshold value It can include actions.

In an embodiment, the method may further include receiving information about the server update policy from the first external electronic device while the electronic device is connected to the first external electronic device.

In an embodiment, the method includes receiving, from the first external electronic device, information indicating the number of times the location information related to the electronic device is actually updated in a server while the electronic device is connected to the first external electronic device and calculating the server update probability based on the received information.

In an embodiment, the method includes: while the electronic device is connected to the first external electronic device, information about a server traffic policy indicating a reception frequency of location information related to the electronic device requested by a server is provided to the first The method may further include receiving from an external electronic device and setting the specified threshold value based on the server traffic policy.

12 is a view for explaining a setting change reflecting a server update policy according to an embodiment. In an embodiment, the electronic device 200 may obtain information on the server update policy of the external electronic device according to the illustrated procedure and reflect the server update policy in changing setting parameters for transmission of an advertisement signal.

Referring to FIG. 12 , the electronic device 200 may be in the lost state 1205 from time to time whenever the connection with the user electronic device 101 is cut off in daily life. The electronic device 200 may accumulate information on external electronic devices that have sent a scan request signal for an advertisement signal during the lost state 1205 . The external electronic device discovering the advertisement signal updates the location information of the electronic device 200 to the server 310 according to its own server update policy. Thereafter, when the electronic device 200 is reconnected with the user electronic device 101 ( 1210 ), the electronic device 200 receives information on the server traffic policy and/or the server update policy from the user electronic device 101 , and A setting change 1215 may be performed according to the received information. As an example, the information may include an actual server update number indicating the number of times the location information of the electronic device 200 is reported to the server 310 during the lost state 1205 . The setting change 1215 may include a change of setting parameters for transmitting an advertisement signal of the electronic device 200 reflecting information on a server traffic policy and/or a server update policy. In an embodiment, during the setting change 1215 , the electronic device 200 may change the setting parameters for transmitting the advertisement signal based on the actual number of server updates indicated by the information.

13 is a view for explaining a server update by a scanner device according to an embodiment. Here, the threshold of server traffic is once during a specified time interval T (for example, T=5 minutes), and the scanner device has a server update policy that sends one scan result signal to the tracker device with the same MAC address. case is explained.

Referring to FIG. 13 , the tracker device A 200a may be discovered by two scanner devices #1 and #2 312 and 314 . During the first time interval T1 1302, scanner device #1 (312) scans an advertisement (ADV) signal from tracker device A (200a) and updates the location information of tracker device A (200a) to server 310 ( UP). Since no other scanner device is detected, the number of server updates in T1 1302 estimated by the tracker device A 200a may be 1. In the second time interval T2 1304 scanner device #1 312 receives an advertisement signal from tracker device A 200a, but because the server update of tracker device A 200a has already been completed in the previous time interval 1302 , the server update for the tracker device A (200a) is not performed. Accordingly, the tracker device A 200a may estimate the number of server updates in T2 1304 to be zero. In the third time interval T3 1306, a new scanner device #2 314 discovers the tracker device A 200a, and performs a server update for the tracker device A 200a. Accordingly, the tracker device A 200a may estimate the number of server updates in T3 1306 to be 1.

In the second time interval T2 ( 1304 ), scanner device #1 ( 312 ) receives an advertisement signal from tracker device B ( 200b ) and performs a server update on tracker device B ( 200b ). Accordingly, the tracker device B (200b) may estimate the number of server updates in T2 (1304) to be 1. In the third time interval T3 1306 , the new scanner device #2 314 discovers the tracker device B 200b and performs a server update for the tracker device B 200b. The number of server updates in T3 1306 that the tracker device B 200b estimates may be 1. During the fourth time period T4 (1308), the tracker device B (200b) may change its MAC address according to a specified MAC address update cycle, and transmits an advertisement signal using the changed MAC address. Scanner device #2 (314) receives the advertisement signal having a new MAC address, and performs a server update for tracker device B (200b). Accordingly, the tracker device B 200b may estimate the number of server updates in T4 1308 to be 1.

14 is a diagram for explaining an expected server update value according to an embodiment. Here, the threshold of server traffic is once during a specified time period T (for example, T=5 minutes), and at least one scanner device sends a scan result signal to the server for a tracker device with the same MAC address. A case of having a server update policy will be described.

Referring to FIG. 14, during the first time period T1 1402, the tracker device 200 repeatedly transmits an advertisement signal according to a specified advertisement interval (eg, 2 seconds) and receives two scan request signals corresponding thereto. . Since the scan request signals are received from the same scanner device #1 (312), the tracker device 200 indicates that the location information for the tracker device 200 has been updated to the server 310 only once during T1 1402. can be estimated Accordingly, the expected server update value at T1 1402 may be 1. Since the server update expected value at T1 1402 is not greater than the specified threshold value (=1), the tracker device 200 may maintain the value of the advertisement interval in the next time interval T2 1404 .

In the second time interval T2 1404 , the tracker device 200 transmits an advertisement signal three times, and receives three scan request signals corresponding thereto, respectively. The respective scan request signals are transmitted from scanner device #2 314 , scanner device #1 312 , and scanner device #3 316 , respectively. When the scanner device #1 (312) has a server update policy of performing only one server update for an advertisement signal of the same MAC address, the tracker device 200 is the scanner device #2 (314) and the scanner device #3 (316). ) can be expected to update the server twice. Accordingly, the tracker device 200 estimates the server update expected value at T2 1404 to be two. Since the server update expectation at T2 1404 is greater than the specified threshold value (=1), the tracker device 200 increases the advertisement interval to the specified value (eg 5 seconds), so that the next time interval T3 ( 1406), one can expect to relax the server update frequency.

In the third time interval T3 1406 , the tracker device 200 transmits an advertisement signal twice according to the increased advertisement interval, and receives two scan request signals corresponding thereto, respectively. Since the scan request signals are sent from the

same scanner devices

314 and 316 as in T2 1404 , the tracker device 200 estimates the server update expected value to be zero. In response to the server update expected value being 0, the tracker device 200 may change its MAC address before the next time interval T4 1408 . When the scanner device #1 (312) transmits a scan request signal corresponding to the advertisement signal from the tracker device 200 in the fourth time interval T4 (1408), the scanner device #1 (312) is the tracker device by the changed MAC address Since it is expected to update the location information of 200 to the server 310 , the tracker device 200 may estimate that the server update expected value at T4 1408 is 1.

Although not shown, the tracker device 200 may establish a reconnection with the user electronic device 101 after T4 1408 . Through the reconnection, the user electronic device 101 may transmit information related to the server update of the tracker device 200 received from the server 310 to the tracker device 200 .

The information may include the number of times the location information related to the tracker device 200 is actually updated in the server 310 in each time interval. Table 1 below shows an example of the information.

	T1T1	T2T2	T3T3	T4T4
서버 업데이트 기대값Server Update Expectations	1One	22	00	1One
실제 서버 업데이트 횟수Actual number of server updates	1One	1One	00	1One

Referring to <Table 1>, when the scanner device #3 (316) among the illustrated scanner devices (312, 314, 316) has a server update policy that does not support the tracking service, in fact, the server at T2 (1404) The number of updates is 1, unlike the server update expected value in the tracker device 200 .

In an embodiment, the user electronic device 101 or the tracker device 200 may calculate a server update probability based on the received information. In the example of <Table 1>, since it is determined that two of the three

scanner devices

312 , 314 , and 316 have participated in the server update, the server update probability per scan request signal may be calculated as 2/3. As another example, the server update probability per scan request signal may be calculated as 3/4 in consideration of all time intervals. The server update probability may be calculated by the tracker device 200 or may be calculated by the user electronic device 101 and transmitted to the tracker device 200 .

In one embodiment, in the same situation as in T1 1402 , the tracker device 200 expects the server update to be performed with a server update probability of 2/3 (or 3/4), and the server recalculated accordingly The expected update value is 2/3 (or 3/4), thus reducing the advertisement interval in the next time interval.

In one embodiment, in the same situation as in T2 1404 , the tracker device 200 can expect that the server update is performed with the server update expectation value to which the server update probability 3/4 is applied, and accordingly, the advertisement interval is set to the server. It can be set to be less long than before the update probability is applied. As an example, the advertisement interval may be increased from 2 seconds to 4 seconds instead of increasing from 2 seconds to 5 seconds.

In one embodiment, in the same situation as in T3 1406 , the tracker device 200 may estimate the server update expected value to be 0 and change the MAC address as well.

In an embodiment, the tracker device 200 may change other configuration parameters related to advertisement operation, for example, a received signal strength indicator (RSSI) criterion and/or advertisement channel based on the server update probability. have.

15 is a view for explaining a change of setting parameters according to the movement of the tracker device 200 according to an embodiment. Here, the tracker device 200 has a built-in sensor module (eg, 630) including an acceleration sensor to distinguish a stationary state and a moving state, and the threshold value compared with the server update expected value is, for example, in the stationary state. For example, once every 30 minutes, in the mobile state, for example, may be once every 5 minutes. In addition, at least one scanner device may have a server update policy that transmits a scan result signal to the server every time an advertisement signal is received for a tracker device having the same MAC address.

Referring to FIG. 15 , during the first time period T1 1502 , the tracker device 200 is in a stationary state, and in response to an advertisement signal transmitted from the tracker device 200 , a scan request signal from the scanner device #1 ( 312 ) Therefore, the number of times the scan request signal is received in T1 1502 may be 1. For example, assuming that each time interval is 5 minutes long, the threshold for the expected server update value in the idle state is once every 30 minutes, which is a server traffic policy that targets server updates every 30 minutes. means Accordingly, the advertisement interval used in the tracker device 200 may be maintained at a maximum value. For example, the maximum value of the advertisement interval is 30 seconds, so the advertisement interval in T1 1502 may be set to 30 seconds.

At a time point 1520, the tracker device 200 may recognize a movement and enter a movement state, and accordingly, a threshold applied to the server update expectation value in

subsequent time intervals

1504, 1506, and 1508. It can be changed once every 5 minutes. In the second time interval T2 1504 , the tracker device 200 may repeatedly transmit an advertisement signal according to a specified advertisement interval, and receive two scan request signals corresponding thereto, respectively. The first scan request signal is transmitted from the scanner device #1 (312), and the second scan request signal is received from the scanner device #2 (314). Because the server update expectation at T2 1504 is 2, which is greater than the threshold value of 1, the tracker device 200 may change the advertisement interval to a shorter one, for example 25 seconds.

In the third time interval T3 1506 , the tracker device 200 may not detect a scan request signal in response to transmission of an advertisement signal. Accordingly, the tracker device 200 may increase the transmission power in order to widen the reach coverage of the advertisement signal. Thereafter, in the fourth time interval T4 1508 , the tracker device 200 may repeatedly transmit an advertisement signal using the increased transmission power. Accordingly, scan request signals from the new scanner devices #3 and #4 316 and 318 may be received by the tracker device 200 . In one embodiment, the tracker device 200 may determine whether to maintain the increased transmission power of the advertisement signal based on the RSSI of the received scan request signals. For example, if the average RSSI of scan request signals received during a predetermined time period (eg, T4) is greater than a specified threshold, the increased transmission power of the advertisement signal may be returned to the original value. On the other hand, if the average RSSI is not greater than the specified threshold, the increased transmission power of the advertisement signal may be maintained.

Although not shown, after T4 1508 , the tracker device 200 establishes a reconnection with the user electronic device 101 , and information related to the server update provided by the server 310 through the user electronic device 101 . can receive The tracker device 200 may recalculate the server update probability based on the information, and use the server update probability during the advertisement operation in the lost state.

According to the disclosed embodiments, the electronic device transmitting the advertisement signal in the lost state may change the setting parameters for transmitting the advertisement signal by estimating the server update status by external electronic devices that scan the advertisement signal, Therefore, it is possible to control so that the update traffic to the server is not excessive, and furthermore, it is possible to obtain optimization of current consumption.

Claims

In an electronic device,

short-distance communication module;

Comprising at least one processor functionally connected to the short-range communication module,

the at least one processor,

detecting a disconnection between the electronic device and the first external electronic device;

When the disconnection of the connection between the electronic device and the first external electronic device is detected, an advertisement signal is transmitted through the short-range communication module;

receiving at least one scan request signal corresponding to the advertisement signal from at least one second external electronic device through the short-range communication module;

changing at least one setting parameter related to transmission of the advertisement signal based on the reception frequency of the scan request signal;

The electronic device is configured to control transmission of the advertisement signal through the short-range communication module based on the changed setting parameter.
The method of claim 1, wherein the at least one setting parameter comprises:

At least one of an advertisement interval indicating a period for transmitting the advertisement signal, an arrival coverage of the advertisement signal, a time interval for stopping transmission of the advertisement signal, and a time point for updating the media access control (MAC) address of the electronic device An electronic device comprising a.
The method of claim 2, wherein the at least one processor comprises:

Based on the reception frequency of the scan request signal,

increase the advertisement interval, or

Reduce the transmission power used for transmission of the advertisement signal, or

use long-range technology to transmit the advertisement signal, or

stopping the transmission of the advertisement signal for a specified time period, and/or

The electronic device, characterized in that the MAC address of the electronic device is changed.
The method of claim 1, wherein the reception frequency of the scan request signal,

and the number of reception times of the scan request signal corresponding to transmission of the advertisement signal a specified number of times.
The method of claim 1, wherein the reception frequency of the scan request signal,

The electronic device comprising the number of times of reception of the scan request signal transmitted from different external electronic devices during a specified time period.
The method of claim 1, wherein the at least one processor comprises:

The electronic device of claim 1, wherein when the reception frequency of the scan request signal is greater than a specified threshold, an advertisement interval for transmission of the advertisement signal is increased by a specified value.
The method of claim 1, wherein the at least one processor comprises:

estimating the number of times of server update in which the at least one second external electronic device updates the location information related to the electronic device to a server based on the reception frequency of the scan request signal;

Based on a server update probability determined based on a server update policy indicating a manner in which the at least one second external electronic device updates the location information related to the electronic device to the server, and the estimated number of server updates, the at least calculating an expected server update value by one second external electronic device;

The electronic device of claim 1, wherein the at least one setting parameter is changed when the calculated expected server update value exceeds a specified threshold.
The method of claim 7, wherein the at least one processor comprises:

The electronic device of claim 1, wherein the electronic device receives information about the server update policy from the first external electronic device while the electronic device is connected to the first external electronic device.
The method of claim 7, wherein the at least one processor comprises:

While the electronic device is connected to the first external electronic device, information indicating the number of times the location information related to the electronic device is actually updated in the server is received from the first external electronic device, and based on the received information and calculating the server update probability.
The method of claim 7, wherein the at least one processor comprises:

While the electronic device is connected to the first external electronic device, receiving information about a server traffic policy indicating a reception frequency of location information related to the electronic device requested by a server from the first external electronic device, and The electronic device of claim 1, wherein the specified threshold is set based on a server traffic policy.
A method for transmitting an advertisement signal by an electronic device, the method comprising:

detecting the disconnection between the electronic device and the first external electronic device;

transmitting an advertisement signal when the disconnection of the connection between the electronic device and the first external electronic device is detected;

receiving at least one scan request signal corresponding to the advertisement signal from at least one second external electronic device;

changing at least one setting parameter related to transmission of the advertisement signal based on the reception frequency of the scan request signal;

and controlling transmission of the advertisement signal based on the changed setting parameter.
The method of claim 11 , wherein the at least one setting parameter comprises:

At least one of an advertisement interval indicating a period for transmitting the advertisement signal, an arrival coverage of the advertisement signal, a time interval for stopping transmission of the advertisement signal, and a time point for updating the media access control (MAC) address of the electronic device A method comprising a.
The method of claim 12, wherein the changing of the at least one setting parameter comprises:

increasing the advertisement interval;

reducing transmission power used for transmission of the advertisement signal;

determining to use a long range technology for transmission of the advertisement signal;

stopping the transmission of the advertisement signal for a specified time period; and/or

and changing the MAC address of the electronic device.
The method of claim 11, wherein the changing of the at least one setting parameter comprises:

and increasing an advertisement interval for transmission of the advertisement signal by a specified value when the reception frequency of the scan request signal is greater than a specified threshold.
The method of claim 11, wherein the changing of the at least one setting parameter comprises:

estimating, by the at least one second external electronic device, the number of server updates to update the location information related to the electronic device to a server based on the reception frequency of the scan request signal;

Based on a server update probability determined based on a server update policy indicating a manner in which the at least one second external electronic device updates the location information related to the electronic device to the server, and the estimated number of server updates, the at least calculating an expected server update value by one second external electronic device;

and changing the at least one setting parameter when the calculated expected server update value exceeds a specified threshold.