KR20240082961A - Electronic device and method for measuring position using the same - Google Patents

Abstract

An electronic device may include a communication circuit, a memory, and a processor that communicate with an external electronic device. The processor uses a communication circuit to detect at least one AP operating in a specific band and bandwidth within a preset distance from the electronic device, and selects at least three APs to measure the location of the electronic device to request a communication connection. Transmit a signal, determine the type of the first service based on receiving an execution request for the first service from the application, and determine the first bandwidth of the signal to be used for communication with the AP based on the type of the first service, The location of the electronic device is determined using the selected APs and the signal of the first bandwidth, the distance from the destination point is determined based on the location of the electronic device, and based on the change in the type of the first service, the device to be used for communication with the AP is determined. You can change the bandwidth of the signal.

Description

Electronic device and position measurement method using the same {ELECTRONIC DEVICE AND METHOD FOR MEASURING POSITION USING THE SAME}

This document relates to electronic devices and a method for measuring location using them, for example, a method for efficiently determining the indoor location of a moving electronic device using short-range wireless network technology.

With the spread of various electronic devices, improvements in the speed of wireless communication that various electronic devices can use have been implemented. Among the wireless communications supported by recent electronic devices, IEEE 802.11 WLAN (or Wi-Fi) is a standard for implementing high-speed wireless connections on various electronic devices. The first implementation of Wi-Fi could support transmission rates of up to 1 to 9 Mbps, but Wi-Fi 6 technology (or IEEE 802.11ax) can support transmission rates of up to about 10 Gbps.

Electronic devices provide various services (e.g., UHD quality video streaming service, AR (augmented reality) service, VR (virtual reality) service) using relatively large capacity data through wireless communication supporting high transmission rates. , and/or MR (mixed reality) services), and various other services can be supported. Electronic devices may support a real-time location tracking system, which is a service that determines the location of the electronic device through short-range wireless communication.

A real time location system (RTLS) can track the location of objects in real time inside a building using short-range wireless communication technology. RTLS can be used in at least one of the following fields: warehouse automation, transportation and logistics, vehicle control, or transportation hubs by utilizing data containing the location of objects. The core of RTLS is to determine the location of a moving object in a limited space. RTLS can decide which wireless communication technology to use by considering at least one of the following: reflection, diffraction, and absorption of radio waves due to building walls, precision of required location results, various spatial characteristics, technology, and cost. RTLS can use at least one communication technology among Wi-Fi, Bluetooth, BLE, UWB, Zigbee, or RFID to determine the location of a moving object. RTLS can receive signals from a plurality of fixed wireless access points or anchor (AP) devices and calculate the distance and location of the electronic device based on map information of the moving area. Distance and location calculation methods may vary depending on the communication technology used. Distance and position calculation methods include, for example, angle of arrival (AoA), time of arrival (ToA), time difference of arrival (TDoA), received signal strength indicator (RSSI), time of flight (ToF), or SDR-TWR. It may include at least one of (symmetric double sided two way ranging). RTLS can be combined with triangulation or trilateration methods to calculate position.

For RTLS, map data with defined Wi-Fi AP locations and a distance measurement function through Wi-Fi Scan and selection of a subset of multiple target Wi-Fi APs may be required.

Location-based service (LBS: location based service) refers to a variety of services provided using the location of a person or object or geographic information of surrounding objects. With the recent development of information and communication technology, the need to provide continuous location-based services has been greatly highlighted. In the case of outdoor LBS, it is possible to determine the location of a moving object using GPS, but since GPS signals cannot reach indoors, wireless communication technology may be needed to replace outdoor GPS. Electronic devices can use various wireless communication technologies (e.g. Wi-Fi, BLE, UWB, RFID) for indoor LBS.

IEEE802.11mc defines technology for estimating the distance between a wireless router (AP, access point) and a mobile device using Wi-Fi. Electronic devices use technology defined in IEEE802.11mc to provide RTLS (Real-Time Location Service), which determines the location of electronic devices through multiple Wi-Fi wireless routers in indoor environments where GPS signals do not reach. You can.

At this time, depending on the bandwidth of the wireless signal used, the ranging accuracy may be determined differently. The electronic device and the location measurement method using the same according to this document seek to efficiently utilize wireless resources by executing the service using different bandwidths depending on the type of service executed through the application and the state of the electronic device.

When an electronic device uses IEEE 802.11mc technology to estimate the distance between the electronic device and the AP, errors in the distance between the electronic device and the AP may occur due to various causes (e.g. indoor RF environment, multi-path fading). there is. The size of the error may vary depending on the bandwidth of the wireless signal used for Wi-Fi transmission. In order to obtain maximum accuracy, the electronic device may measure the distance between the electronic device and the AP using a signal with the highest bandwidth among the bandwidths supported by both the electronic device and the AP. In this case, the electronic device can transmit signals at the maximum bandwidth without considering the service the electronic device will perform. If the service to be performed by the electronic device can achieve sufficient quality even if it uses a signal with a bandwidth smaller than the maximum bandwidth, using a signal with the maximum bandwidth consumes the electronic device's current and wastes wireless resources. can be brought.

An electronic device may include a communication circuit, a memory, and a processor that communicate with an external electronic device. The processor uses a communication circuit to detect at least one AP operating in a specific band and bandwidth within a preset distance from the electronic device, and selects at least three APs to measure the location of the electronic device to request a communication connection. Transmit a signal, determine the type of the first service based on receiving an execution request for the first service from the application, and determine the first bandwidth of the signal to be used for communication with the AP based on the type of the first service, The location of the electronic device is determined using the selected APs and the signal of the first bandwidth, the distance from the destination point is determined based on the location of the electronic device, and based on the change in the type of the first service, the device to be used for communication with the AP is determined. You can change the bandwidth of the signal.

The location measurement method of an electronic device detects at least one AP operating in a specific band and bandwidth within a preset distance from the electronic device, selects at least three APs to measure the location of the electronic device, and requests a communication connection. The operation of transmitting a signal, confirming the type of the first service based on receiving an execution request for the first service from the application, and determining the first bandwidth of the signal to be used for communication with the AP based on the type of the first service. An operation of determining the location of the electronic device using the selected APs and signals of the first bandwidth and determining the distance from the destination point based on the location of the electronic device, and AP based on a change in the type of the first service It may include an operation of changing the bandwidth of the signal to be used for communication with.

The electronic device and the location measurement method using the same according to this document can provide services using signals with different bandwidths depending on the type of service provided through the application and the state of the electronic device. Therefore, if the service being executed can obtain sufficient quality even if it uses a signal with a bandwidth smaller than the maximum bandwidth, the electronic device can perform the service using a signal with a bandwidth smaller than the maximum bandwidth, thereby reducing current consumption and and waste of wireless resources can be reduced.

1 is a block diagram of an electronic device in a network environment, according to various embodiments.
FIG. 2 is a diagram illustrating an embodiment of determining the angle of arrival of a signal transmitted from an external electronic device in an electronic device according to various embodiments of the present invention.
Figure 3 illustrates a method for measuring the position of an electronic device according to an embodiment.
Figure 4 is a block diagram showing the configuration of an electronic device according to an embodiment.
FIG. 5 is a diagram illustrating an embodiment of determining the distance to an external device in an electronic device using a fine timing measurement (FTM).
FIG. 6 illustrates a network configuration of a real-time location tracking system (RTLS) in an electronic device according to an embodiment.
Figure 7 is a flowchart showing a method for measuring the position of an electronic device according to an embodiment.

1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments. Referring to FIG. 1, in the network environment 100, the electronic device 101 communicates with the electronic device 102 through a first network 198 (e.g., a short-range wireless communication network) or a second network 199. It is possible to communicate with at least one of the electronic device 104 or the server 108 through (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to one embodiment, the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio 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 may include 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 (e.g., sensor module 176, camera module 180, or antenna module 197) are integrated into one component (e.g., display module 160). It can be.

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

The auxiliary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (e.g., sleep) state, or while the main processor 121 is in an active (e.g., application execution) state. ), together with the main processor 121, at least one of the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) At least some of the functions or states related to can be controlled. According to one embodiment, co-processor 123 (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module 180 or communication module 190). there is. According to one embodiment, the auxiliary processor 123 (eg, neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through machine learning. For example, such learning may be performed in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (e.g., server 108). Learning algorithms may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but It is not limited. An artificial intelligence model may include multiple artificial neural network layers. Artificial neural networks include deep neural network (DNN), convolutional neural network (CNN), recurrent neural network (RNN), restricted boltzmann machine (RBM), belief deep network (DBN), bidirectional recurrent deep neural network (BRDNN), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the examples described above. In addition to hardware structures, artificial intelligence models may additionally or alternatively include software structures.

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

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

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

The sound output module 155 may output sound signals to the outside of the electronic device 101. The sound output module 155 may include, for example, a speaker or a receiver. Speakers 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 the speaker or as part of it.

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

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

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

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

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

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

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

The power management module 188 can manage power supplied to the electronic device 101. According to one embodiment, the power management module 188 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).

Battery 189 may supply power to at least one component of electronic device 101. According to one embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

Communication module 190 is configured to provide a direct (e.g., wired) communication channel or wireless communication channel between electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108). It can support establishment and communication through established communication channels. Communication module 190 operates independently of processor 120 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., : LAN (local area network) communication module, or power line communication module) may be included. Among these communication modules, the corresponding communication module is a first network 198 (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (e.g., legacy It may communicate with an external electronic device 104 through a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN). These various types of communication modules may be integrated into one component (e.g., a single chip) or may be implemented as a plurality of separate components (e.g., multiple chips). The wireless communication module 192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199. The electronic device 101 can be confirmed or authenticated.

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

The antenna module 197 may transmit or receive signals or power to or from the outside (eg, an external electronic device). According to one embodiment, the antenna module 197 may include an antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one embodiment, the antenna module 197 may include a plurality of antennas (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 to the plurality of antennas by, for example, the communication module 190. can be selected. Signals or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, other components (eg, radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module 197.

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, a mmWave antenna module includes: a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., mmWave band); And a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side) of the printed circuit board and capable of transmitting or receiving signals in 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 (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( (e.g. commands or data) can be exchanged with each other.

According to one embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199. Each of the external electronic devices 102 or 104 may be of the same or different type as the electronic device 101. According to one embodiment, all or part of the operations performed in the electronic device 101 may be executed in one or more of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 may perform the function or service instead of executing the function or service on its own. Alternatively, or additionally, one or more external electronic devices may be requested to perform at least part of the function or service. One or more external electronic devices that have received the request may execute at least part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may process the result as is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology can 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. Server 108 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, the external electronic device 104 or server 108 may be included in the second network 199. The electronic device 101 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

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

The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the relevant context clearly indicates 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 Each of phrases such as “at least one of , B, or C” may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one component from another, and to refer to those components in other respects (e.g., importance or order) is not limited. One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” Where mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.

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

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

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

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

FIG. 2 is a diagram illustrating an embodiment of determining the angle of arrival of a signal transmitted from an external electronic device in an electronic device according to various embodiments of the present invention.

Referring to FIG. 2, an antenna (e.g., a first antenna 242 and a second antenna 244) included in an electronic device (e.g., the electronic device 101 of FIG. 1) (e.g., an antenna module (e.g., the antenna module of FIG. 1) 197)) is shown. According to one embodiment, a processor (e.g., the processor 120 of FIG. 1) detects an external electronic device (e.g., the processor 120 of FIG. 1) based on the phase difference between the signals received by the first antenna 242 and the second antenna 244. The angle of arrival (AoA) of the signal transmitted by the first external electronic device 102 or the second external electronic device 104 can be checked. The external electronic device may include, for example, any one of an AP, anchor, tag, or beacon. Hereinafter, the description will be made assuming that the external electronic device is an AP, but the external electronic device may include any device that sends a signal that can specify its location, and is not limited to the AP.

)만큼 더 진행할 수 있다. According to one embodiment, the first antenna 242 and the second antenna 244 transmit information from an external electronic device (e.g., the first external electronic device 102 or the second external electronic device 104 of FIG. 1). A signal can be received. The phases of signals received by the first antenna 242 and the second antenna 244 may be different from each other. For example, the signal received by the first antenna 242 is d/sin (

), you can proceed further.

According to one embodiment, the processor 120 may check the difference in phase between the signals received by the second antenna 244 of the first antenna 242 and check the angle of arrival based on the difference in phase.

According to one embodiment, the processor 120 may transmit signals in various directions to an external electronic device and receive signals output from the external electronic device, instead of the phase difference value. The processor 120 may check the strength of the received signal and determine the direction corresponding to the signal with the greatest strength among the strengths of the confirmed signals as the angle of arrival.

According to one embodiment, the processor 120 determines the distance of the transmission path of the first signal and the distance of the transmission path of the second signal based on whether the angle of arrival of the signal transmitted by the external electronic device is within a specific range. You can perform a confirmation operation.

Figure 3 illustrates a method for measuring the position of an electronic device according to an embodiment.

In one embodiment, a processor (e.g., processor 120 of FIG. 1) uses an electronic device (e.g., electronic device 101 of FIG. 1) and a plurality of external electronic devices (e.g., AP) to process an electronic device (e.g., AP). 101) can be estimated. The processor 120 may form the first circle 310 with the location of the first external electronic device (e.g., C) as the center and the distance to the electronic device 101 (e.g., d3) as the radius. The processor 120 may configure the second circle 320 with the location of the second external electronic device (e.g., B) as the center and the distance to the electronic device 101 (e.g., d2) as the radius. The processor 120 may configure the third circle 330 with the location of the third external electronic device (e.g., A) as the center and the distance to the electronic device 101 (e.g., d1) as the radius. The processor 120 may estimate the intersection 300 of the first circle 310, the second circle 320, and the third circle 330 as the location of the electronic device.

Figure 4 is a block diagram showing the configuration of an electronic device according to an embodiment.

According to one embodiment, the electronic device 400 may include a processor 410 and a communication circuit 420, and some of the illustrated components may be omitted or replaced. The electronic device 400 may include at least some of the configuration and/or functions of the electronic device 101 of FIG. 1 . At least some of the components of the electronic device shown (or not shown) may be operatively, functionally, and/or electrically connected to each other.

In one embodiment, the processor 410 is a component capable of performing operations or data processing related to control and/or communication of each component of the electronic device 400, and may be comprised of one or more processors. The processor 410 may include at least some of the components and/or functions of the processor 120 of FIG. 1 .

In one embodiment, there will be no limitation to the calculation and data processing functions that the processor 410 can implement on the electronic device 400, but hereinafter, features related to position measurement of the electronic device 400 will be described in detail. . Operations of the processor 410 may be performed by loading instructions stored in memory (eg, memory 130 of FIG. 1).

In one embodiment, the communication circuit 420 may communicate with an external device through a wireless network under the control of the processor 410. Communication circuitry 420 may be configured to communicate from cellular networks (e.g., long term evolution (LTE) networks, 5G networks, new radio (NR) networks) and local area networks (e.g., Wi-Fi, Bluetooth, BLE, UWB, Zigbee, or RFID). It may include hardware and software modules for transmitting and receiving data. The communication circuit 420 may include at least some of the components and/or functions of the communication module 190 of FIG. 1 .

According to one embodiment, the processor 410 may determine the first bandwidth of a signal to be used for communication with the AP based on the type of the first service based on receiving a request to execute the first service from the application. Processor 410 is

According to one embodiment, the processor 410 uses the communication circuit 420 to receive data from an external electronic device (e.g., an access point (AP), anchor, tag, beacon) or to transmit data to an external electronic device. You can. The processor 410 can perform positioning indoors using IEEE 802.11mc or Wi-Fi round-trip time (RTT). The processor 410 may determine the location of the electronic device 400 or an external electronic device (e.g., the external electronic device 102 of FIG. 1) indoors based on the fine timing measurement (FTM) protocol of the IEEE 802.11 standard. According to one embodiment, the processor 410 generates a first difference value (e.g., t4), which is the difference between the time (t4) at which the external electronic device 102 received the response signal and the time (t1) at which the first FTM signal was transmitted. A second difference value (e.g., t3-t2), which is the difference between -t1), the time (t3) at which the electronic device 400 transmitted the response signal, and the time (t2) at which the electronic device 400 received the first FTM signal. ) (e.g., half of (t4-t1)-(t3-t2) multiplied by the first FTM signal speed (e.g., speed of light) can be determined as the distance of the transmission path of the first signal. Transmission path The process of determining the distance will be explained in detail in FIG. 5.

In one embodiment, the electronic device 400 (e.g., the electronic device 101 of FIG. 1) is connected to an external electronic device (e.g., an access point (AP), an anchor, tag, beacon) and data can be transmitted or data can be received. Hereinafter, the description will be made assuming that the external electronic device is an AP, but the external electronic device may include any device that sends a signal that can specify its location (e.g., a large home appliance), and is not limited to the AP. The electronic device 400 determines whether an external electronic device (e.g., AP) exists within a certain distance based on the center of the electronic device 400 by measuring the angle of arrival (AoA) of a signal transmitted by the external electronic device. You can check it using . Alternatively, the electronic device 400 determines whether an external electronic device (e.g., AP) exists within a preset range centered on the electronic device 400 by measuring the angle of arrival (AoA) of a signal transmitted by the external electronic device. You can check using . The electronic device 400 may transmit data to or receive data from an external electronic device whose angle of arrival (AoA) of a signal transmitted by a specific external electronic device is within a specific range.

According to one embodiment, while transmitting and receiving a signal with an external electronic device, the electronic device 400 may check the signal's reception direction or the signal's travel distance based on the difference between the signal's transmission time and reception time. The electronic device 400 may check relative position information between the external electronic device and the electronic device 400 based on the direction in which the signal is received and the distance the signal moves. The electronic device 400 may perform various operations (eg, controlling an external electronic device or creating an indoor map including location information of the external electronic device) based on the confirmed relative location information.

According to one embodiment, the processor 410 may determine the location of the electronic device 400 using information about the movement area including the locations where a plurality of APs are installed. The processor 410 receives map information of the moving area from the user or an external device (e.g., a server of an application or another electronic device (e.g., the electronic device 102 of FIG. 1)) to determine the location of the electronic device 400. The RTLS service application in the electronic device 400 can receive map information from a server or cloud and transmit it to the RTLS framework when running the RTLS service.

FIG. 5 is a diagram illustrating an embodiment of determining the distance to an external device in an electronic device using a fine timing measurement (FTM).

Referring to FIG. 5, the moving distance of the first signal between the electronic device 500 (e.g., the electronic device 101 of FIG. 1) and the external electronic device 502 (e.g., the electronic device 102 of FIG. 1) The operations for measuring are shown.

According to one embodiment, in operation 505, the electronic device 500 may establish a communication connection with the external electronic device 502 using a communication circuit (eg, the communication circuit 420 of FIG. 4). The communication circuit 420 may support establishing a direct (e.g., wired) or wireless communication channel between the electronic device 500 and the external electronic device 502, and performing communication through the established communication channel. The communication circuit 420 may support 5G networks after 4G networks and next-generation communication technologies, for example, NR access technology (new radio access technology). The communication circuit 420 may support a high frequency band (eg, mmWave band) to achieve a high data transmission rate.

According to one embodiment, in operation 510, the electronic device 500 may transmit an FTM request signal to the external electronic device 502.

According to one embodiment, in operation 520, the external electronic device 502 may transmit a response signal in response to receiving the FTM request signal transmitted by the electronic device 500.

According to one embodiment, in operation 530, a first FTM signal for measuring the moving distance of the first signal transmitted between the electronic device 500 and the external electronic device 502 may be transmitted. The first FTM signal may refer to a first signal, and may refer to a first signal in a method of measuring a signal transmission path using a precise timing measurement method.

According to one embodiment, the external electronic device 502 may transmit the first FTM signal including the transmission time (t1) of the first FTM signal.

According to one embodiment, in operation 540, the electronic device 500 may transmit a response signal in response to receiving the first FTM signal.

According to one embodiment, while transmitting a response signal, the electronic device 500 may check the time (t2) at which the first FTM signal was received and the time (t3) at which the response signal was transmitted.

According to one embodiment, in operation 550, the external electronic device 502 may transmit a second FTM signal in response to receiving a response signal transmitted by the electronic device 500. The second FTM signal may refer to the first signal, and may refer to the first signal in a method of measuring the signal transmission path using a precise timing measurement method.

According to one embodiment, the external electronic device 502 may transmit a second FTM signal including the time (t4) at which the electronic device received the response signal transmitted in operation 540.

According to one embodiment, in operation 560, the electronic device 500 may check the distance of the transmission path of the first signal based on t1 to t4.

According to one embodiment, the electronic device 500 (or the processor 710) determines the difference between the time (t4) when the external electronic device 502 received the response signal and the time (t1) when the first FTM signal was transmitted. The first difference value (e.g., t4-t1), which is the difference value between the time (t3) when the electronic device 500 transmitted the response signal and the time (t2) when the electronic device 500 received the first FTM signal. 2 Half of the difference value (e.g., t3-t2) (e.g., (t4-t1)-(t3-t2) multiplied by the first FTM signal speed (e.g., the speed of light) is the transmission path of the first signal. It can be determined by the distance.

According to one embodiment, the electronic device 500 (or the processor 710) determines the time (t2) when the electronic device 500 receives the first FTM signal and when the external electronic device 502 receives the first FTM signal. The difference between the transmitted time (t1) (e.g., t2-t1), the time when the external electronic device 502 received the response signal (t4), and the time when the electronic device 500 transmitted the response signal (t3). The average of the difference values (e.g., t4-t3) multiplied by the speed (e.g., speed of light) of the first FTM signal may be determined as the distance of the transmission path of the first signal.

FIG. 6 illustrates a network configuration of a real-time location tracking system (RTLS) in an electronic device according to an embodiment.

According to one embodiment, the electronic device 600 may include a real-time location tracking system (RTLS). A real-time location tracking system (RTLS) can be configured in various forms considering the characteristics of the moving object and moving area requiring tracking. For example, a real-time location tracking system (RTLS) may be formed based on a network composed of a mobile electronic device and an external device (eg, a fixed AP device) as shown in FIG. 6. Alternatively, a real-time location tracking system (RTLS) may be deployed in an environment where obstacles (e.g., walls) exist between mobile electronic devices and fixed AP devices within a mobile area. In this case, a real-time location tracking system (RTLS) may first need map information about the movement area to determine the real-time location of the electronic device.

In FIG. 6, the electronic device 600 receives signals from a plurality of AP devices 602, 604, and 606 and performs a real-time positioning operation based on map information received from an external device 608 (e.g., a server). can do. In Figure 6, only three APs are shown, but the number of APs is not limited to this. The electronic device 600 may perform a positioning operation using APs other than the AP devices 602, 604, and 606 shown in FIG. 6. The electronic device 600 may perform a positioning operation by selecting three APs from among multiple APs. According to one embodiment, the processor (e.g., processor 410 in FIG. 4) includes a communication technology control unit that supports and/or controls at least one communication method among Bluetooth, BLE, Wi-Fi, or UWB, and a location measurement related unit. It may include an RTLS framework, which is a set of functions, and an RTLS service application that outputs (or displays) results processed by the RTLS framework and/or receives input and output from the user. The processor 410 may transfer map information received from the RTLS service application to the RTLS framework. The processor 410 may transmit data about the external environment received from the communication technology control unit to the RTLS framework. The processor 410 can process data about the external environment using the RTLS framework and calculate the distance to a plurality of AP devices 602, 604, and 606. The processor 410 may determine the location of the electronic device 600 using the distance from the plurality of AP devices 602, 604, and 606.

Figure 7 is a flowchart showing a method for measuring the position of an electronic device according to an embodiment.

Operations described with reference to FIG. 7 may be implemented based on instructions that can be stored in a computer recording medium or memory (eg, memory 130 in FIG. 1). The illustrated method 700 may be executed by the electronic device previously described with reference to FIGS. 1 to 6 (e.g., the electronic device 101 of FIG. 1 and the electronic device 400 of FIG. 4), and may be performed using the technical method previously described. The features will be omitted below. The order of each operation in FIG. 7 may be changed, some operations may be omitted, and some operations may be performed simultaneously.

In operation 710, the processor (e.g., processor 410 in FIG. 4) detects APs using a communication circuit (e.g., communication circuit 420 in FIG. 4) and selects at least three APs for location measurement. . The processor 410 detects at least one AP operating in a specific band and/or bandwidth within a preset distance from the electronic device 400, and selects at least three APs to measure the location of the electronic device 400. Thus, a signal requesting a communication connection can be transmitted. An AP operating in a specific band and/or bandwidth may mean an AP that supports 11mc technology. Wi-Fi 11mc is a Wi-Fi technology that controls signals to be transmitted in specific frequency bands (e.g., 2.4GHz, 5GHz, and/or 6GHz bands) and in specific bandwidths (e.g., 20MHz, 40MHz, 80MHz, and/or 160Mhz). You can.

In operation 720, the processor 410 may determine the bandwidth of the signal to be used for communication with the AP based on the type of the first service.

The processor 410 may perform a round trip time (RTT) operation with the maximum bandwidth supported by the electronic device 400 and the AP to obtain maximum location measurement accuracy regardless of the type or purpose of the service provided by the application. . However, in this case, the electronic device 400 operates at maximum bandwidth regardless of the service (or application) running on the electronic device 400, resulting in increased current consumption. In order to overcome these limitations, the method for measuring the position of the electronic device 400 according to this document can apply the bandwidth of the signal used during positioning differently based on the type of service provided by the application and the state of the electronic device 400. there is.

The processor 410 may determine the type of the first service based on receiving an execution request for the first service from the application, and determine the first bandwidth of the signal to be used for communication with the AP based on the type of the first service. .

In operation 730, the processor 410 may determine the location of the electronic device by transmitting or receiving a signal with the first bandwidth to selected APs.

The processor 410 may perform either trilateration or triangulation using at least three APs. For example, the processor 410 may measure the distance between each AP and the electronic device 400 to determine the location of the electronic device 400 through trilateration. The processor 410 can measure the distance between the AP and the electronic device 400 using the arrival time of the 11mc FTM packet exchanged between the AP and the electronic device 400. The processor 410 may determine the location of the electronic device 400 using the distance to at least three APs. This has been explained in Figures 2 and 3.

The processor 410 may determine the location of the electronic device 400 using a received signal strength indicator (RSSI), which indicates the strength of the received signal, and the locations of APs within a preset distance from the electronic device 400. .

The processor 410 may detect an AP within a preset distance from the electronic device 400 using a communication circuit (e.g., the communication circuit 420 of FIG. 4). The processor 410 controls the communication circuit 420 to receive a signal transmitted (or broadcast) by the AP, and determines that the quality of the signal received by the communication circuit 420 is greater than (or exceeds) a specified size. Based on this, you can check whether the signal is transmitted by an AP within a preset distance.

The processor 410 detects APs within a preset distance from the electronic device 400 and provides information indicating to the user that the number of APs for location measurement is insufficient based on the number of detected APs being less than 3. can be provided.

In operation 740, the processor 410 may change the bandwidth of the signal to be used for communication with the AP based on a change in the type of the first service.

According to one embodiment, upon receiving an execution request for the second service, the processor 410 may determine whether the service requires relatively high positioning accuracy based on the mapping table and the type of the second service. The processor 410 may change the bandwidth of the signal to a second bandwidth that is relatively wider than the first bandwidth based on determining that the second service is a service that must secure relatively high positioning accuracy. The processor 410 may provide high positioning accuracy by changing the signal bandwidth to a second bandwidth that is relatively wider than the first bandwidth. Services that require relatively high positioning accuracy include, for example, positioning services that need to provide the location of specific products or areas indoors, such as at fairs or shopping malls, or guidance to emergency doors (e.g., stairs) in emergency situations, including fire. This may include disaster services. Services that require high positioning accuracy are not limited to this and may vary depending on settings.

According to one embodiment, the processor 410 may determine whether a service can be executed with relatively low positioning accuracy based on a mapping table and the type of the third service, based on a request for execution of a third service being received. The processor 410 may change the bandwidth of the signal to a third bandwidth that is relatively narrower than the first bandwidth based on determining that the third service is a service that can be executed with relatively low positioning accuracy. The processor 410 can reduce network resource consumption and power consumption by changing the signal bandwidth to a third bandwidth that is relatively narrower than the first bandwidth. A service that can be implemented even with relatively low positioning accuracy may include, for example, a case where the user can distinguish the target point with the naked eye when guiding to a specific area in an open space (e.g., an amusement park). Services that can be run even with relatively low positioning accuracy are not limited to this and may vary depending on settings.

According to one embodiment, the processor 410 adjusts the bandwidth of the signal to be used for communication with the AP to the first bandwidth based on the provision of the second or third service being terminated and an execution request for the first service being received again. It can be changed. The processor 410 may change the bandwidth of the signal to be used for communication with the AP from the second bandwidth to the first bandwidth based on the end of provision of the second service. The processor 410 may change the bandwidth of the signal to be used for communication with the AP from the third bandwidth to the first bandwidth based on the end of provision of the third service.

The processor 410 may determine the bandwidth of the signal as the first bandwidth based on the measurement position of the electronic device 400 being determined to be outside a preset range from the destination point while executing the first service. The processor 410 may change the bandwidth of the signal to a second bandwidth that is relatively wider than the first bandwidth based on the determination that the measurement position of the electronic device 400 is within a preset range from the destination point.

The processor 410 re-measures the position of the electronic device 400 based on a change in the bandwidth of the signal to be used for communication with the AP, and determines that the measured position of the electronic device 400 is outside a preset range from the destination point. The bandwidth of the signal is determined to be the first bandwidth, and the bandwidth of the signal is determined to be a second bandwidth that is relatively wider than the first bandwidth based on the measurement position of the electronic device 400 being determined to be within a preset range from the destination point. You can.

The processor 410 may determine the type, ID, and required bandwidth of the service provided by the application for applications that the user uses at a frequency exceeding a specified level, and store the determined information in a mapping table on the memory 130. there is.

The mapping table includes data in which the bandwidth required to provide the service is pre-mapped based on the type of the first service, and may include the type of service, service ID (identifier), and configurable bandwidth information according to the service type. there is. The types of services include the first type, which includes navigation services for finding specific spaces and services for providing shopping information at specific points, and the second type, which provides information on specific zones rather than specific points. can do. The second type, which provides information about a specific area rather than a specific point, may require relatively low positioning accuracy compared to the first type, which provides information about a specific point.

According to one embodiment, the processor 410 may determine the bandwidth required to provide a service based on the mapping table shown in [Table 1]. The basic bandwidth may refer to the bandwidth of a signal operating on the communication circuit 420 before changing the bandwidth.

Service Type service id
(Service ID) default bandwidth
(BandWidth) Required Bandwidth (Change BandWidth) One ab 40 80 2 CD 80 40 3 ef 20 160

In Table 1, in a situation where a signal is transmitted in the 40MHz band for the first type of service, the processor 410 may change the signal transmission band to the 80MHz band based on the mapping table. The first type of service may require relatively high accuracy in distance determination. The processor 410 may change the bandwidth to the 80 MHz band for the first type of service and measure the location of the electronic device 400. The processor 410 can increase the bandwidth from 40 MHz to 80 MHz to reduce errors in the positioning process and provide relatively more accurate location information.

In a situation where a signal is transmitted in the 80MHz band for the second type of service, the processor 410 may change the signal transmission band to the 40MHz band based on the mapping table. The second type of service may require relatively low accuracy in distance determination. The processor 410 may change the bandwidth to the 40 MHz band for the second type of service and measure the location of the electronic device 400. The processor 410 can reduce the current consumption of the electronic device 400 by reducing the bandwidth from 80 MHz to 40 MHz.

In a situation where a signal is transmitted in the 20MHz band for the third type of service, the processor 410 may change the signal transmission band to the 160MHz band based on the mapping table. A third type of service may require relatively high accuracy in distance determination. The processor 410 can change the bandwidth to the 160 MHz band for the third type of service and measure the location of the electronic device 400. The processor 410 can increase the bandwidth from 20 MHz to 160 MHz to reduce errors in the positioning process and provide relatively more accurate location information.

As described in Table 1, the processor 410 can change the bandwidth used to perform services based on the mapping table and improve positioning accuracy or reduce current consumption depending on the type of service.

The mapping table listed in Table 1 is an example, and some information included in the mapping table may be omitted or added. According to one example, the mapping table may be implemented with data mapping the identification information of the service and the bandwidth required for the service, as shown in Table 2 below.

service id
(Service ID) Required bandwidth (BandWidth) ab 80 CD 40 ef 160

The processor 410 can check the services provided by the currently executing application. The processor 410 may check the bandwidth corresponding to the identification information of the currently provided service based on the mapping data. Processor 410 may transmit and/or receive a signal having an identified bandwidth based on whether the identified bandwidth is different from the bandwidth of the signal currently being transmitted and/or received. The processor 410 may maintain the current bandwidth and/or transmit and/or receive a signal having the bandwidth based on confirming that the confirmed bandwidth is the same as the bandwidth of the signal currently being transmitted and/or received. .

The processor 410 changes the signal bandwidth to a second bandwidth that is relatively wider than the first bandwidth for applications that request services classified as the first type, and for applications that request services that are classified as the second type. The bandwidth of the signal can be changed to a third bandwidth that is relatively narrower than the first bandwidth.

An electronic device may include a communication circuit, a memory, and a processor that communicate with an external electronic device. The processor uses a communication circuit to detect at least one AP operating in a specific band and bandwidth within a preset distance from the electronic device, and selects at least three APs to measure the location of the electronic device to request a communication connection. Transmit a signal, determine the type of the first service based on receiving an execution request for the first service from the application, and determine the first bandwidth of the signal to be used for communication with the AP based on the type of the first service, The location of the electronic device is determined using the selected APs and the signal of the first bandwidth, the distance from the destination point is determined based on the location of the electronic device, and based on the change in the type of the first service, the device to be used for communication with the AP is determined. You can change the bandwidth of the signal.

Based on the execution request for the second service being received, the processor determines whether the second service is a service that must secure relatively high positioning accuracy based on the mapping table and the type of the second service, and secures the second service with relatively high positioning accuracy. Based on the determination of the service to be performed, the bandwidth of the signal may be changed to a second bandwidth that is relatively wider than the first bandwidth. The mapping table may include information mapping the type of service and the bandwidth required for signal transmission depending on the type of service.

Based on the execution request for the third service being received, the processor determines whether the service can operate with relatively low positioning accuracy based on the mapping table and the type of the third service, and determines whether the third service is capable of operating with relatively low positioning accuracy. Based on the determination that the service is capable of operation, the bandwidth of the signal may be changed to a third bandwidth that is relatively narrower than the first bandwidth. The mapping table may include information mapping the type of service and the bandwidth required for signal transmission depending on the type of service.

The processor determines the bandwidth of the signal as the first bandwidth based on the measurement position of the electronic device being determined to be outside a preset range from the destination point, or determines the bandwidth of the signal as the first bandwidth based on the measurement position of the electronic device being determined to be within a preset range from the destination point. The bandwidth of can be changed to a second bandwidth that is relatively wider than the first bandwidth.

The processor re-measures the position of the electronic device based on a change in the bandwidth of the signal to be used for communication with the AP, and adjusts the bandwidth of the signal to the first bandwidth based on the measurement position of the electronic device being determined to be outside the preset range from the destination point. Determine, and determine the bandwidth of the signal to be a second bandwidth that is relatively wider than the first bandwidth, based on the fact that the measurement position of the electronic device is determined to be within a preset range from the destination point.

The processor can determine the location of the electronic device using APs that support 11mc technology, which controls signals to be transmitted in a specific frequency band.

The processor can detect APs within a preset distance from the electronic device using a communication circuit, and provide information indicating to the user that the number of APs for location measurement is insufficient based on the number of APs found being less than 3. there is.

The processor determines the type, ID, and required bandwidth of the service provided by the application for the application that the user uses at a frequency exceeding the specified level, and stores the determined service type, ID, and/or required bandwidth in a mapping table in memory. You can save it.

The mapping table includes data in which the bandwidth required to provide the service is pre-mapped based on the type of the first service, and may include the type of service, service ID (identifier), and configurable bandwidth information according to the service type. there is.

The processor changes the signal bandwidth to a second bandwidth that is relatively wider than the first bandwidth for applications that request services that require relatively high positioning accuracy, and requests services that can operate even with relatively low positioning accuracy. For the application, the bandwidth of the signal can be changed to a third bandwidth that is relatively narrower than the first bandwidth.

The location measurement method of an electronic device detects at least one AP operating in a specific band and bandwidth within a preset distance from the electronic device, selects at least three APs to measure the location of the electronic device, and requests a communication connection. The operation of transmitting a signal, confirming the type of the first service based on receiving an execution request for the first service from the application, and determining the first bandwidth of the signal to be used for communication with the AP based on the type of the first service. An operation of determining the location of the electronic device using the selected APs and signals of the first bandwidth and determining the distance from the destination point based on the location of the electronic device, and AP based on a change in the type of the first service It may include an operation of changing the bandwidth of the signal to be used for communication with.

Claims (20)

In electronic devices,
Communication circuitry that communicates with external electronic devices;
memory; and
Includes a processor,
The processor is
Detect at least one AP operating in a specific band and bandwidth within a preset distance from the electronic device using the communication circuit, and select at least three APs to measure the location of the electronic device to request a communication connection. transmit a signal that
Confirming the type of the first service based on receiving an execution request for the first service from an application, determining a first bandwidth of a signal to be used for communication with the AP based on the type of the first service,
Determine the location of the electronic device using the selected APs and the signal of the first bandwidth and determine the distance from the destination point based on the location of the electronic device,
An electronic device that changes the bandwidth of a signal to be used for communication with the AP based on a change in the type of the first service.
According to claim 1,
The processor is
Based on the execution request for the second service being received
Based on the mapping table and the type of the second service, determine whether it is a service that must secure relatively high positioning accuracy,
Based on the determination that the second service is a service that requires relatively high positioning accuracy, the bandwidth of the signal is changed to a second bandwidth that is relatively wider than the first bandwidth,
The mapping table is
An electronic device that includes information mapping the type of service and the bandwidth required for signal transmission according to the type of service.
According to clause 1,
The processor is
Based on the execution request being received for a third-party service
Based on the mapping table and the type of the third service, determine whether the service can operate even with relatively low positioning accuracy,
Based on the determination that the third service is a service that can operate with relatively low positioning accuracy, the bandwidth of the signal is changed to a third bandwidth that is relatively narrower than the first bandwidth,
The mapping table is
An electronic device that includes information mapping the type of service and the bandwidth required for signal transmission according to the type of service.
According to claim 1,
The processor is
Determine the bandwidth of the signal as the first bandwidth based on the measurement position of the electronic device being determined to be outside a preset range from the destination point, or
An electronic device that changes the bandwidth of a signal to a second bandwidth that is relatively wider than the first bandwidth based on the measurement position of the electronic device being determined to be within a preset range from the destination point.
According to clause 1,
The processor is
Re-measure the location of the electronic device based on a change in the bandwidth of the signal to be used for communication with the AP,
Determining the bandwidth of the signal as the first bandwidth based on the measurement position of the electronic device being determined to be outside a preset range from the destination point,
An electronic device that determines the bandwidth of a signal to be a second bandwidth that is relatively wider than the first bandwidth based on the measurement position of the electronic device being determined to be within a preset range from the destination point.
According to clause 1,
The processor is
An electronic device that determines the location of the electronic device using APs that support 11mc technology that controls signals to be transmitted in a specific frequency band.
According to clause 1,
The processor is
Detecting an AP within a preset distance from the electronic device using the communication circuit,
An electronic device that provides information indicating to a user that the number of APs for location measurement is insufficient based on the number of discovered APs being less than 3.
According to clause 1,
The processor is
For applications that users use at a frequency exceeding a specified level, determine the type, ID, and required bandwidth of the service provided by the application,
An electronic device that stores the determined service type, ID, and/or required bandwidth in a mapping table in the memory.
According to clause 8,
The mapping table is
Contains data in which the bandwidth required to provide the service is mapped in advance based on the type of the first service,
An electronic device that includes the type of service, service identifier (ID), and bandwidth information that can be set according to the service type.
According to clause 8,
The processor is
For applications that request services that require relatively high positioning accuracy, the signal bandwidth is changed to a second bandwidth that is relatively wider than the first bandwidth,
An electronic device that changes the signal bandwidth to a third bandwidth that is relatively narrower than the first bandwidth for an application that requests a service that can operate with relatively low positioning accuracy.
In a method for measuring the position of an electronic device,
Detecting at least one AP operating in a specific band and bandwidth within a preset distance from the electronic device, selecting at least three APs to measure the location of the electronic device, and transmitting a signal requesting a communication connection ;
Confirming the type of the first service based on receiving a request to execute the first service from an application, and determining a first bandwidth of a signal to be used for communication with the AP based on the type of the first service;
An operation of determining the location of the electronic device using selected APs and a signal of the first bandwidth and determining a distance from a destination point based on the location of the electronic device; And
A method comprising changing the bandwidth of a signal to be used for communication with the AP based on a change in the type of the first service.
According to claim 11,
The operation of changing the bandwidth of the signal to be used for communication with the AP is
An operation of determining whether a service must secure relatively high positioning accuracy based on a mapping table and the type of the second service, based on receiving an execution request for a second service; and
Further comprising changing the bandwidth of the signal to a second bandwidth that is relatively wider than the first bandwidth based on determining that the second service is a service that must secure relatively high positioning accuracy,
The mapping table is
A method of including information mapping the type of service and the bandwidth required for signal transmission depending on the type of service.
According to clause 12,
The operation of changing the bandwidth of the signal to be used for communication with the AP is
An operation of determining whether a service can operate with relatively low positioning accuracy based on a mapping table and the type of the third service based on receiving an execution request for a third service; and
Further comprising changing the bandwidth of the signal to a third bandwidth that is relatively narrower than the first bandwidth based on determining that the third service is a service that can operate with relatively low positioning accuracy,
The mapping table is
A method including information mapping the type of service and the bandwidth required for signal transmission according to the type of service.
According to claim 11,
The operation of changing the bandwidth of the signal to be used for communication with the AP is
An operation of determining the bandwidth of a signal as the first bandwidth based on the measurement position of the electronic device being determined to be outside a preset range from the destination point; And
The method further includes changing the bandwidth of the signal to a second bandwidth that is relatively wider than the first bandwidth based on the measurement position of the electronic device being determined to be within a preset range from the destination point.
According to claim 11,
The operation of changing the bandwidth of the signal to be used for communication with the AP is
Re-measuring the location of the electronic device based on a change in the bandwidth of a signal to be used for communication with the AP;
An operation of determining the bandwidth of a signal as the first bandwidth based on the measurement position of the electronic device being determined to be outside a preset range from the destination point; And
The method further includes determining the bandwidth of the signal to be a second bandwidth that is relatively wider than the first bandwidth based on the measurement position of the electronic device being determined to be within a preset range from the destination point.
According to claim 11,
The operation of determining the location of the electronic device using the selected APs and the signal of the first bandwidth is
The method further includes determining the location of the electronic device using APs that support 11mc technology that controls signals to be transmitted in a specific frequency band.
According to claim 11,
Detecting at least one AP operating in a specific band and bandwidth within a preset distance from the electronic device, selecting at least three APs to measure the location of the electronic device, and transmitting a signal requesting a communication connection silver
An operation of detecting APs within a preset distance from the electronic device using a communication circuit and providing information indicating to the user that the number of APs for location measurement is insufficient based on the number of APs found being less than 3. How to include more.
According to claim 11,
The method of measuring the position of the electronic device is
An operation of determining the type, ID, and required bandwidth of the service provided by the application for the application that the user uses at a frequency exceeding a specified level; and
The method further includes storing the determined service type, ID, and/or required bandwidth in a mapping table in memory.
According to clause 18,
The mapping table is
Contains data in which the bandwidth required to provide the service is mapped in advance based on the type of the first service,
A method of including the type of service, service ID (identifier), and configurable bandwidth information according to the service type.
According to clause 18,
The operation of changing the bandwidth of the signal to be used for communication with the AP is
An operation of changing the signal bandwidth to a second bandwidth that is relatively wider than the first bandwidth for an application that requests a service that must secure relatively high positioning accuracy; and
The method further includes changing the signal bandwidth to a third bandwidth that is relatively narrower than the first bandwidth for an application that requests a service that can operate with relatively low positioning accuracy.

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